container capping method for arranging at least one cap around at least one container and container

专利摘要:
CONTAINER FILLING METHOD FOR DISPOSING AT LEAST ONE COVER AROUND AT LEAST ONE CONTAINER AND CONTAINER FILLING SYSTEM FOR DISPOSING COVERS AROUND CONTAINERS The present invention relates to a container capping system and method. The layers (102, 168, 200, 510) of thin thermo shrinkable sheet are arranged around the container (105, 201, 511). The covers are provided by ejecting the cover from the cover supply. Containers are provided from a container supply. The cap provision arranges the cap around the container by moving the cap upwardly around the container. A heat shrink oven is arranged to fix the cover to the container. A driver transports the containers.
公开号:BR112014030925B1
申请号:R112014030925-6
申请日:2013-07-02
公开日:2020-11-10
发明作者:Ernst Christiaan Koolhaas
申请人:Fuji Seal International, Inc；
IPC主号:

专利说明:

[0001] The invention relates to a container capping method for arranging a cap around a container. The invention also relates to a container capping system for arranging covers around containers.
[0002] Thermo shrinkable covers can be used to provide labels on containers to, for example, identify the contents of the container.
[0003] From the document EP 1,587,736 A1, the arrangement of layers around containers that have a rim is known, with several layers being predisposed in an open position. Retractable pins are used to hold the cover in an upright position. A container suspended on cables can be positioned in an open cover. Subsequently, the cover is attached to the container using heat. The known method is not suitable for high-speed labeling.
[0004] EP 1,016,595 reveals preformed conical covers. The covers are formed having a permanently open position. A container is positioned on the covers.
[0005] A problem associated with the known method is to increase the speed and, in another mode, to increase the reliability of the capping method. It is an objective of the present invention to improve the known method.
[0006] US 4,048,281 discloses a machine in which bottles loaded on neck pin hooks connected to an actuated infinite loader are transported along with several mandrels positioned below the bottles. The hooks have their centers in sync with the vertical central geometric axes of the underlying mandrels. Each mandrel is provided with a ring ring surrounding upward thrust, which can be made to perform an alternating movement. First, a plastic strip is wrapped around the mandrel and then sewn to form a cover. The mandrel and hook then travel together, during which the cap is pushed upwards by the push bar upwards to a position where the cap is arranged around the bottle, so that the caps can be attached to the bottles in a heat shrinking process.
[0007] A disadvantage of the known machine is that it is relatively complex and has a relatively slow processing speed. In addition, by using an upward push bar to move the cap over the bottom end of the bottle, the known machine is less suitable for handling containers made of relatively flexible materials and for the use of highly flexible capping materials, for example. example, relatively thin covering materials. An additional disadvantage is that the machine is not suitable, and even less to cover containers of a generally cuneiform shape (i.e., having a top end wider than a bottom end of them).
[0008] A similar construction is disclosed in US 3,767,496 A. This document discloses a bottle capping method and device in which a cap is lifted and telescopically inserted over the bottom end of a bottle by clamping the cap. and pushing the clamped cover upwards using a rod. Since mechanical means clamp the cap at the bottom end of the cap, the cap material needs to be relatively thick and inflexible. This makes the known method and device unsuitable, let alone to be used with thin and flexible covers and / or may reduce the overall capping speed of the capping device. The devices disclosed in JP 2007.112465 A and WO 2009/000068 A2 have similar disadvantages.
[0009] It is an object of the invention to provide a method and a system in which at least one of the disadvantages identified above and / or others has been removed or at least reduced.
[00010] It is an additional object of the invention to provide a method and a system that make it possible to have a relatively quick and safe arrangement of covers around containers, especially (but not exclusively) in the case of cuneiform containers.
[00011] In accordance with a first aspect of the invention, an improved container capping method for fixing a cap around a container is provided.
[00012] According to the modalities of the invention, the method comprises:
[00013] - provide a container;
[00014] - arrange a thin sheet shrink wrap around the container, releasing the cover from a mandrel unit, ejecting the cover in the direction of the container;
[00015] in which the ejected cover is moved upwards in the direction substantially opposite the gravitational force to a position around the container.
[00016] By ejecting the covers towards the passing containers, or, more specifically, by launching the covers from the mandrel unit towards the containers and sliding them over the bottom ends of the containers, the covers can be arranged around the container quickly and safely. In addition, the arrangement of a cover around a container ejecting (throwing) it from the mandrel makes it possible to use a very flexible cover material, since it is not necessary to use means that grab a cover and pull us on the container.
[00017] In the embodiments of the invention, the covers are arranged around the container directly from the mandrel unit as a result of the kinetic energy imparted to the cover by ejecting it from the mandrel unit. In the path from the mandrel unit to the container, the cover is not supported by any means. The kinetic energy given to the cap must be sufficient to enable the cap to be at least partially oriented on the bottom end of the container. In other embodiments, similar guidance can be provided to place the ejected cap in position around the container. However, direct ejection is preferred. Accordingly, the cap is launched around the container in a single operational step.
[00018] The ejection of a cap from the mandrel unit and the movement of the cap in an upward way over and around the container makes it possible to approach the container with the cap from the bottom. In some embodiments, the cap over the top of the container is blocked.
[00019] Preferably, thin sheet shrink sleeves are provided. Preferably, tubular covers are provided. The shrink sleeves can comprise thin printed sheets and form labels that have, for example, product information that must be arranged around the container. The cover supply can be connected to a flat tubular thermo shrinkable thin sheet supply such as a coil with coiled thin sheets.
[00020] The container may comprise a labeling surface on which a label will be placed. The labeling surface can be conical, tubular or have other shapes. The cover is arranged around the container and, in a subsequent operation, such as heat shrinking, the cover can be attached around the container, which creates a labeled container. Container capping is a safe, high-speed method known as part of container labeling.
[00021] The method may comprise the continuous conduction of an array of containers and the arrangement of covers over consecutive containers during the conduction of the containers. The containers can be handled continuously, which in this way increases the handling speed of the capping system.
[00022] The method may involve a stationary mandrel unit from which the caps are ejected while driving the containers along the mandrel unit. The stationary arrangement of the mandrel unit makes it possible to construct and operate the mandrel unit in a simple and safe manner.
[00023] The containers in the present application comprise all types of elements that may contain fluids, liquids, granules, etc. The containers comprise bottles and bags. Many containers have an opening, for example, a removable lid near the top side of the container. Other containers have a wide top. In many applications, the container is already filled with a liquid or a fluid before capping and labeling. By moving the cover over the container directed upwards, it is possible to arrange the cover over the container from a bottom side, for example, if the bottom side of the container is the narrowest (has the smallest maximum circumference) . The upper side that has the opening can be kept in an upright position, for example, which prevents the fluid / liquid contained in the container from coming into contact with the removable opening / lid.
[00024] Through the vertical capping upwardly, the cap is ejected / launched upwardly against the gravitational force. In one embodiment, the cap has a circumference reasonably larger than the body of the container in which the cap is arranged. In one embodiment, the ejected cap is kept around the container by providing glue on the cap or on the container.
[00025] In one embodiment, the method allows a continuous operation of feeding of covers and containers. In one embodiment, a continuous method is provided that enables continuous feeding of layers and / or containers in which to fix the layers. In one embodiment, the provided covers and / or containers are conducted. A method that comprises the continuous conduction of layers and / or containers makes it possible to operate at higher speeds. Such continuous driving is an improvement on EP 1,587,736-A1. The conduction may comprise holding the cover / container in an upright position. In one embodiment, the conduction comprises holding the container in a hanging arrangement.
[00026] According to one embodiment, the provision of a thermo shrinkable thin layer comprises supplying a flat tubular thin sheet, opening the thin sheet and cutting the layers from the thin sheet. This automated and continuous method, for example, known from the document WO 2011-031160 under the name of the same depositor, which is explicitly included as a reference, allows the high speed supply of thin tubular sheets and individual layers. This increases the speed at which the labeling method can operate.
[00027] In one embodiment, the supply and supply of the cap by cutting the cap from the thin sheet, according to the invention, are followed directly by placing the cap in a predetermined position in which it will be fixed to the container . This avoids additional operational steps to handle the cut cover and / or obtain the predetermined position after the cover is supplied. The method, therefore, has reduced complexity. This lowers costs, both operational and configuration. In addition, reliability is increased and physical space is saved.
[00028] In one embodiment, the container and the cover arranged around the container are transported to a heat shrinking furnace and the cover is thermo shrunk around the container to fix the cover to the container. During the heat shrinking process, the containers can be stationary or can continue to be transported through the oven. For heat shrinking, steam is preferably used. The container and the cover are preferably kept in an upright position. The cover's longitudinal geometric axis extends in a vertical direction.
[00029] Other modalities for shrinking and fixing the cap may include spot welding triggers or small cap connection stations. In another embodiment, a container can be sprinkled wetly and the cover can be glued together. In addition, a static charging connection can be used to secure the cover.
[00030] In one embodiment, steam is applied to the cover from the sides while transporting the cover / container through the heating oven. The additional heat, specifically the steam, can be directed towards the cover / container from one or more sides, for example, from the bottom side.
[00031] In one embodiment, the method comprises transporting, specifically driving, the suspended containers with an end to be capped extended downwards.
[00032] In one embodiment, an upper side of the container is engaged, which leaves the bottom end free to be capped.
[00033] In one embodiment, the container is driven with the passage of the mandrel and making it possible to arrange the cover around the driven container by ejecting the cover upwards. The combination of the container and the cover is carried forward downstream.
[00034] In one embodiment, an auxiliary support is provided to support the ejected cover vertically in its position around the container. The lift overlapped the gravitational force.
[00035] In one embodiment, the ejected cap is thrown around the container. Subsequently, the ejected cap is oriented to a predetermined position with respect to the container. Ejection of the cover places the cover in a generally defined position around the container, while more specific guidance is provided to place the cover in its desired position with respect to the container in a subsequent operation.
[00036] The method may comprise holding an ejected cap, once it has reached the position around the container and / or before the cap falls from the container due to gravity. In one embodiment, the support may comprise a mat to support the ejected cover vertically in its position around the container. The conveyor can move along with the cover placed around the container while driving.
[00037] Holding the ejected cover arranged around the container may comprise moving the cover to a predetermined position with respect to the container, preferably moving the cover upwardly to a suitable position for subsequent attachment of the cover to the container. For example, while the capped container is directed towards the oven, the covers can be oriented close to a stationary or mobile element (such as a mat). The movement of the cap next to the element can cause the cap to move upwards or downwards to a suitable position in which the cap can be fixed to the container.
[00038] In one embodiment, the conveyor moves at the same speed, but preferably at a higher speed than the cover and container being driven. As the cap is launched upwardly into the horizontally moving container, the horizontal cap is given a horizontal velocity component as a result of the movement of the container in which it is arranged. This can cause a part, in particular the lower end of the cover, to fall behind. By providing a conveyor that, in particular, engages the lower end of the cover, which moves at a speed greater than the transport speed, the skewed position of the cover can be corrected.
[00039] In accordance with the modalities of the invention, the step of holding the ejected cover in position around the container comprises moving a conveyor under the cover arranged around the container while it is being conducted, the conveyor being arranged tilting the cover to a suitable position. This inclination can be achieved by moving the belt at a higher speed than the container being driven and / or placing the belt in an oblique position. In some embodiments, the conveyor causes the ejected cover to move to an oblique position that is tilted forward to create a space between the cover and the next container. Space may be necessary to enable the next layer to be launched around the next container, even if the space between the containers is limited and / or the speed of the conductor is high.
[00040] In one embodiment, the orientation of the cover in the direction of a desired position with respect to the container and, eventually, the support of the cover in a position around the cover, are maintained until after the container is transported with the cover inward. of the heat shrink oven. The predetermined position is maintained until the heat shrinking begins. The arrangement of the container and the cover held in the predetermined position is transported into the heating furnace for heat shrinking and for fixing the cover around the container.
[00041] In one embodiment, the method additionally comprises a deep inlay or thermoformed packaging containers, such as receptacles or the like, in a strip of packaging material in at least one longitudinal row. The containers have a rim. The rim of the container can be used to maintain the position of the container.
[00042] In a further aspect, the invention provides an improved container capping system for arranging a cap around a container. Thermo shrinkable covers can be used. The covers are provided and the containers are provided. The covers and containers are transported into a heating oven to fix the cover around the container.
[00043] According to the modalities of the invention, the system can comprise:
[00044] - a conductor for transporting containers, and
[00045] - a cover provision for arranging heat shrinkable covers around containers carried by the driver, the cover provision comprising a mandrel unit and the mandrel unit comprising an ejection unit to eject the cover from the mandrel unit,
[00046] in which the ejection unit is configured to move the cover upwardly in the direction substantially opposite the gravitational force to a position around the container.
[00047] In an embodiment of the invention, the ejector unit is configured to launch the cover of the mandrel unit towards the container, which causes the cover to slide over the container to the position where the cover is arranged around the container. The cover arrangement around the container can be made directly from the mandrel unit, as a result of the kinetic energy imparted to the cover by the ejection unit.
[00048] According to one embodiment, the container capping system comprises a cover provision to provide the covers made of thermo shrinkable thin sheet. The covers are preferably tubular. The cover supply can be connected to a flat tubular thermo shrinkable thin sheet supply such as a coil with coiled thin sheets. The cover supply comprises a mandrel on which the cover is transported.
[00049] In one embodiment, the cover provision may comprise an opening unit for opening the thin tubular sheet, a cutting unit for cutting the covers from the open tubular thin sheet and an ejection unit for ejecting the cover from cover provision. The cover provision makes it possible to provide individually cut layers to be arranged around the containers. In one embodiment, the layers are cut from the flat tubular thin sheet and are ejected and subsequently opened, positioning the layer in the predetermined position.
[00050] The container capping system also comprises a conductor to transport the containers to continuously supply the containers. The provided containers can be individual containers or they can be products that comprise multiple containers. The container may already contain a product, such as a drink or a fluid or a dairy product or nuts or sweets. The containers are arranged to hold a portion and may have a lid to open the container and provide access to the contents of the container. One embodiment comprises a removable seal for opening the container. The container can have a circumference and can have different cross sections, such as circular, elliptical, square or rectangular, and can extend in a tubular or conical way. The container may also have claws or indentations.
[00051] In one embodiment, the cover provision can arrange the cover around a container. In one embodiment, the cover provision comprises an ejection unit for launching a mandrel cover around the container.
[00052] According to an embodiment of the invention, the ejection unit is configured to arrange the cover upwardly around the container. Contrary to known methods, the cap is thrown over the bottom or bottom of the container instead of over the top of the container. This makes it possible to orient the container with the opening as a part of the top of the container during capping. This is particularly advantageous when the container is already filled during capping. In addition, especially the most fragile part of the product, "the seal", is handled without differences in speed. This results in a minimal risk of damage to the seal.
[00053] The vertically inverted position of the product means that the flow control of the product is done when the seals are in contact with the conductive belt system. The risk of damage occurs when the products are stopped and the driver is still moving. Friction between the belt and the product seal can damage the seal.
[00054] In one embodiment, the container capping system is a labeling system that also comprises a heat shrink oven to fix the cover to the container. The heat shrink oven is, in one embodiment, a steam oven that comprises multiple nozzles and several stages to fix the cover to the container.
[00055] In one embodiment, the driver can transport the containers and the cover arranged around the containers into the heat shrink oven. The containers and layers are collected in the conductor, arranged, and the layer is fixed to the container during its transport through the oven. A continuous process at high speed can be achieved.
[00056] According to one embodiment, the labeling system additionally comprises a cover support to position one or more layers in a predetermined position with respect to one or more containers. The support makes it possible to orient and position the cover in relation to the container, for example, up to half of the container or at an acute angle. The support can be an auxiliary device to help position the cover in relation to the container.
[00057] In the application, the predetermined position is a position that makes it possible to fix the cover in a desired position around the container.
[00058] In one embodiment, the driver is arranged to direct a lower end of the container towards the ejection unit when the container passes through the ejection unit.
[00059] In one embodiment, the ejection unit is arranged to eject upwardly and to eject the cover directly around the containers. In a single operational step, the cover is launched and positioned over the container.
[00060] In order to provide a continuous method and to increase the handling speed, the ejection unit is arranged to eject the cover around the container while the container is driven by the driver.
[00061] In one embodiment, the driver is willing to transport a row of containers. The containers are transported at high speed and pass the point where the caps are thrown upwards on a bottom part of the containers.
[00062] Preferably, the driver is arranged to carry at least two adjacent rows of containers. In one embodiment, at least two cover supplies, each of which comprises a mandrel and an ejection unit directed at the driver, are arranged to arrange a cover upwardly around the containers. This makes it possible, for example, to handle products that comprise 2x2, 2x3 containers at high speeds.
[00063] In one embodiment, the driver comprises an engaging element to engage an upper side of the containers. This makes it possible to arrange the cover on a bottom side of the container.
[00064] In one mode, the system additionally comprises an ejected cover support. Once the ejected cap is released upwards, the gravitational force will exert a force in the opposite direction that can move the cap in the opposite direction, which removes the cap from the container's surroundings. The ejected cover support can prevent the cover from being removed. The ejected cover support supports the cover arranged around the container.
[00065] In one embodiment, the ejected cover support comprises a passive plate. The plate can extend over at least part of the conductor. The plate can be arranged to support a part of the circumferential edge of the cover arranged around the container. The plate can be positioned under the conductor, specifically under the desired position of the cover to support the cover upwards against the gravitational force.
[00066] In one embodiment, the ejected cover support comprises a mat arranged to move close to the driver. The belt can move at a higher speed than the driver. A skewed cap can be corrected as a result of the cap accelerating in a horizontal direction after being ejected around the container.
[00067] In one embodiment, the mat comprises a first mat that includes a part of the mat and a second part of the mat. The mat parts can be arranged to support a cover consecutively on the first part of the mat and the second part of the mat. The first part of the mat can extend obliquely, while the second part of the mat extends horizontally. In order to enable the horizontal speed component of the first part of the belt to be essentially equal to the speed of the containers, the transport speed of the first part of the belt (and the second part of the belt) must be greater than the speed of the driver. Next to the first (dry) conveyor, a second conveyor can be arranged, for example, a wet conveyor configured to transport the covered containers through the oven. The second belt extends in a generally horizontal direction. The speed of the second track can be essentially identical to the speed of the driver. In the embodiments of the invention, the transport speed of the first conveyor is, therefore, greater than the transport speed of the second conveyor.
[00068] Although in the above modalities the horizontal and oblique parts of the mat are formed by a single mat, these parts of the mat can be formed by a plurality of mats separated in other modalities.
[00069] The first conveyor can be configured to move an ejected cover to an oblique position tilted forward, to create a space between the capped container and a subsequent container. This allows for an increase in the processing speed of the system, especially in cases where the distance between consecutive containers suspended from the conductor is relatively short.
[00070] In one embodiment, the ejected cover support extends into the heat shrink oven. This allows the support of the cover to continue until the shrinking and fixing of the cover to the container begins.
[00071] In an additional embodiment, the container provision is arranged to provide packaging containers such as receptacles or the like formed by deep inlay or thermoforming. In one embodiment, the container provision comprises a form filling sealing machine to form receptacles and bottles, in an hourly manner, on an inner strip of packaging at least one longitudinal row. In one embodiment, the container provision comprises a form filling sealing machine to form receptacles and bottles. Preferably, several adjacent rows are formed. In one embodiment, the containers are formed according to a predetermined pattern of, for example, 2x2 or 2x3 containers on a single strip of packaging material. Preferably, the containers are filled with product. Preferably the containers are sealed. The method and system according to the invention make it possible to handle the filled containers in a vertical position, which, in this way, prevents disturbances to the product kept in the container.
[00072] In an additional modality, the container that forms the surface received for the label is of a conical shape. Such conical shapes are difficult to label, since, during heat shrinkage, a label tends to move towards the wedge-shaped tip of the product. Through the use of the support according to the invention, the label is kept in a predetermined position during heat shrinkage. This prevents the label's tendency to move from its desired height position and reduces the risk of being pushed down, and may also make it possible to apply the capping method to containers that have complex shapes.
[00073] It is noticeable to the learned person that the drawings show only the preferred modalities and that other modalities are within the scope of the invention. Although the drawings show only the preferred modalities and the invention is described with the appended claims, it is noticeable to the skilled person that the invention may include other features mentioned explicitly in that description, but also implicit features. It is noticeable to the knowledgeable person that any of these explicit and implicit features can be combined with the features mentioned in that description or in the claims. Divisional applications directed to these resources are possible.
[00074] The modalities will now be described with reference to the drawings, in which:
[00075] Figure 1 shows a schematic overview (a front view) of a modality of a system and method for capping a product,
[00076] Figure 2 shows a front view of a first embodiment of a detail according to II in Figure 1,
[00077] Figures 3A and 3B show frontal views of a second and a third embodiment of a detail according to II in Figure 1,
[00078] Figures 4a and 4b show a top view and a front view, respectively, of a fourth embodiment of a detail according to II in Figure 1,
[00079] Figure 5 shows a front view of an additional embodiment of a detail according to II in Figure 1,
[00080] Figure 6 is a front view of an additional embodiment of a detail according to II in Figure 1,
[00081] Figures 7A, 7B and 7c are schematic representations of additional embodiments of the present invention;
[00082] Figure 8 shows a perspective view of a thermoformed product with 2x3 containers;
[00083] Figures 9a and 9b show, respectively, a side view and a front view of an additional embodiment of a detail according to II in Figure 1;
[00084] Figure 10 shows a schematic representation of an additional embodiment of the present invention.
[00085] Figure 1 schematically shows a capping system 1 for capping and labeling containers. The illustration is a front view. A thin sheet coil 500 is supplied in a thin sheet stock 501. The thin sheet is provided in step S1. In one embodiment, a splitter is used in step S1 to connect subsequent thin sheets from rollers to provide continuous thin sheet feed.
[00086] Coil 500 provides a thin shrinkable sheet 502. Thin sheet 502 is tubular. The coil supplies the tubular thin sheet in a flattened shape. In one embodiment, the invention is limited to one or more properties of the thin sheet.
[00087] The thin sheet is fed to a 503 storer. The 503 storer allows storing the thin sheet S2, for example, when a reel 500 is replaced, to provide continuous feed 505 to downstream applications, such as the illustrated stationary mandrel 506 comprising a mandrel 507 and an ejection unit 508.
[00088] As the flat tubular thin sheet is oriented next to the mandrel 507, the thin sheet is opened S3 by the end 515 of the mandrel 507. The mandrel unit 506 additionally comprises a cutting unit 514 for cutting the S4 layers of the open thin sheet provided. The ejection unit 508 can comprise several wheels or rollers configured to give the covers an acceleration, so that they are ejected in the direction of a container positioned above the mandrel.
[00089] In this embodiment, the containers 511 have a generally cuneiform shape, that is, the container essentially has, near a top end, a larger cross-section than at the bottom end of the container. The container can have a frustoconical shape, as shown in the Figures. However, the system and method according to the present invention can also be applied to containers or receptacles of different shapes. In addition, containers (also called "receptacles") can be transported one by one, for example, in one or more rows of containers. In other embodiments, the containers can be combined into several products, each product comprising more than one container or receptacle.
[00090] Furthermore, according to the modalities of the invention, the containers must be kept in an upright position where the relatively wide top end of the container extends above the relatively small bottom end of the container, for example, in the case of containers or thermoformed plastic receptacles for storing food or similar content. These containers or receptacles must not be inverted vertically, but kept in an upright position during the entire process of covering.
[00091] Referring to Figure 1, a container 511 can have an opening close to an upper side, while the bottom side is the smallest end of the container. In some embodiments, containers 511 have a rim (not shown in Figure 1). Containers can be filled with content, such as food.
[00092] The top end of the container 511 is engaged by the conductor 512, for example, by a vacuum conductor, which leaves the bottom end 520 of the container 'freely hanging'. The conductor arrangements may comprise wires to support a top rim of the container to enable the illustrated support.
[00093] The ejection unit 508, in the mode shown, comprises two rotating wheels to physically engage the cut cover, accelerating the cover and ejecting the mandrel cover S5 over the 511 container. A suitable controller is arranged to operate the units and to synchronize the ejection with the movement of the containers. More specifically, a suitable controller is arranged to synchronize the ejection, the filling of the container, the cutting and other steps of the method.
[00094] In embodiments of the invention, the containers are aligned with the ejection unit 508 at the moment of ejection of a cover. However, in other modalities, a container is not aligned, as will be discussed later in this document.
[00095] Containers 511 are continuously (ie, not intermittently) conducted by conductor 512 in direction 516, in this mode also during the actual upward launch of the cover 521 onto container 511. Since containers 511 are provided in a continuous manner, they constitute a row of containers. Although not shown in the attached Figures, clearly several rows of containers can be provided adjacent. In particular, this allows for the provision of products comprising various containers, such as yogurt containers. Yogurt containers can be thermoformed from a plate, in which 2x2, 2x3 or 2x4 containers are formed on a single plate. The two rows of containers are fed adjacent to two mandrels 507 positioned adjacent. The covers are thrown over the containers.
[00096] The thin sheet 502 and the resulting covers 510 are cut and thrown in an upward direction onto the containers 509. The cover assembly 510 and the container 511 are guided S6 further in the direction 516 by the conductor 512.
[00097] Since the cap 510 is arranged around the container 511, the cap 510 will be arranged around the wedge surface of the container. The container 511 is further transported in the direction 516. The cover 510 is subsequently accelerated in the direction 516. Almost instantly, the bottom edge 522 of cover 510 will be supported by a cover support 517, shown here, schematically, as a passive plate 517. The plate 517 will support the edge 522 and, subsequently, the full bottom side of the cover. This will guide the cover towards a desired position in relation to the container and subsequently keep the cover in the desired position.
[00098] The 517 plate can be dimensioned to have a wider width than the cover, allowing the plate to fully support the cover. In other embodiments, the plate that has a smaller width may be sufficient to support the covers.
[00099] Conductor 512 transports the covered containers further downstream, for example, to a heated steam oven 513. The thin sheet 502 is a thin sheet of heat shrinkage. The steam will shrink the cap and the cap is attached to the container, providing a container labeled 518. In a subsequent step, a drying process can be applied.
[000100] As schematically illustrated, the ejected cover support 517 extends to the heating oven 513, holding the cover in the desired position until the cover is fixed.
[000101] The advantages of a system configured according to Figure 1 are high speed, accuracy, reliability and reduced space. Not only are the covers supplied at high speed using the ejection unit 508, but thermo shrinking in oven 513 is also performed quickly, limiting the actual heating of the container 511 which may already contain the product such as a dairy product. The illustrated system also allows handling of thin sheets of less than 60 pm.
[000102] The system, according to Figure 1, allows capping of containers and labeling of containers.
[000103] Although it will be clear that the ejected cover support is an auxiliary support, not necessary for the invention, in some embodiments of the invention this ejected cover support is beneficial, for example, for covers that are positioned without juxtaposition.
[000104] In modes without the support of an ejected cover, the cover is arranged to engage the container after being ejected. The size of the cap can be adjusted to the size of the container. In the case of a container that has a cuneiform shape in which the bottom end has a smaller cross-section than the top end, the circumference of the cover is large enough to be moved over the bottom end of the container and small enough to lock the lid. when it is moving further upward. The cover dimensions, therefore, are selected to be, in some way, smaller than the circumference of the container at a certain height above the bottom of the wedge-shaped container. In another embodiment, glue can be used to (temporarily) affix the cover to the container.
[000105] Figure 2 shows a detail at position II in Figure 1. The mandrel unit 101 comprises a stationary mandrel 102. A thin tubular sheet is caused to move upwardly along mandrel 102 and is cut through cutting edge (not shown) to provide a properly sized cover. The mandrel unit 101 additionally comprises a variety of ejectors 103 (for example, rotating wheels) to accelerate the cap and launch the same cap upwardly, causing the cap to be ejected from the mandrel unit 101. One cover released from chuck 102 and ejected from chuck unit 101 moves against gravitational force towards a container 105 suspended above chuck unit 101 from conductor 106 by moving the container in direction 107 and is slid over the cuneiform end of the container 105.
[000106] As the cap is ejected upwardly from the mandrel 102, the container 105 is moved above the mandrel. The container 105 will drag (move) the cap in direction 107. The caps may have a tendency to move downwards under the influence of gravity after they have been launched upwards and have been arranged around the containers. In order to avoid the situation in which the covers fall from the containers before they have been attached to the container, for example, before a cover has undergone a heating treatment, the covers must be supported.
[000107] In embodiments of the invention, such support is provided by a plate, for example, plate 517 shown in Figure 1 or plate 111 shown in Figure 2. The plate is arranged at an appropriate height below the conductor 106. A guide point, for example, guide tip 523 (see Figure 1) can be formed at the upstream end of plate 517 to allow an appropriate guide of the cover along the plate. Plate 111 is positioned at a distance 108 downstream from the upstream end of mandrel 102, as shown in Figure 2. Distance 108 may vary, depending on the circumstances. The distance allows the cover to be launched upwards and reach the container without interfering with the plate 111.
[000108] The distance can be adjusted to allow almost instantaneous support of the cover after the cover has been slid upwards over the container, and tends to fall downwards again. In some embodiments, length 108 can be negative, for example, the tip of the plate 111 is positioned downstream from the upstream end of the mandrel, depending on the orientation, size, shape and properties of the cover.
[000109] In the embodiment of Figure 2, the plate 111 is positioned at a distance 109 below the bottom end 520 (see Figure 1) of the container. This causes the bottom end of the cover to extend below the bottom end of the container when the container enters oven 513. This arrangement allows the cover to overlap with the container. As a bottom edge of the cover is supported by plate 111, that bottom edge extends under the bottom end of the container 105 and during heat shrinkage, that extending portion will heat up, covering the bottom part of the container, as shown in Figure 1. For example, the container labeled 518 of Figure 1 comprises a juxtaposed cover 530. In other embodiments, however, the plate may extend to a higher position, for example, even above the bottom end of container 520 of the container to hold partial labels. An example of such an arrangement is shown in Figures 9A and 9B.
[000110] Figures 3A and 3B show other modalities of an ejected cover support. Parts similar to Figure 2 have the same or similar numerical references. The ejected cover support comprises a plate 139 that has an essentially horizontal part 143 and a part (Figure 3A) or several parts (Figure 3B) that extend obliquely with respect to the horizontal part. The horizontal part 143 supports the bottom edge of the cap and keeps the cap in its desired position around the container. The horizontal portion 143 can extend into the heating oven 153.
[000111] In the embodiment of Figure 3A, a first oblique part 141 of the ejected cover support 139 extends at an angle (aa) in relation to the horizontal direction. This part of the cap support is placed at an angle to allow the cap to follow, to a certain extent, the movement of the container when it is transported along the mandrel unit. The oblique orientation of this part of the support allows for some tolerance for the cap as it is being launched upwardly 104. The additional oblique part or edge 140 has a different function, similar to that of the tip 110 in the form of Figure 2. A part 140 is provided to prevent interference from the cover when moving the thin sheet towards the ejection position (at the top of the mandrel) and additionally.
[000112] Part 141 of the ejected cover support 139 extends at an appropriate angle (aa) in relation to the horizontal direction to allow proper support for the covers. The appropriate angle depends, among others, on the dimensions and shape of the receptacles, the speed of the conductor, the material of the cover, etc.
[000113] In the embodiment of Figure 3B, the support 143 comprises a first oblique part 141 and a second oblique part 142, each extending at a different angle (Obi> Ob2) in relation to the horizontal direction (that is, a parallel direction direction of travel of the containers). In additional embodiments, the support 139 can comprise more than two oblique parts and / or can be curved to achieve the desired effect.
[000114] Figures 4a and 4b show additional modalities for an ejected cover support. Figure 4a shows, schematically, a top view of the ejected cover support, while Figure 4b shows a front view, similar to the views in Figures 2 and 3. In these embodiments, the ejected cover support comprises a plate 152 that essentially performs a similar function to the plate of Figure 1. Plate 152, according to the present embodiment, extends both upstream and downstream of mandrel 102. The plate comprises a central opening adjusted and positioned to allow an ejected cover to pass the sign. On the bottom side of the plate 152, a downwardly extending tubular part 151 is provided. The tubular part 151 partially surrounds the mandrel 102 and can provide guidance for the cap after being ejected upwardly into the container (not shown in Figures 4a, 4b).
[000115] Figure 5 shows an additional modality of an ejected cover support. Here, the ejected cover support comprises a moving belt 160 guided on several rollers 161,162. The moving belt 160 is driven by a suitable drive mechanism (not shown explicitly in the Figures). In the example shown, the cap is exceeded in relation to the wedge-shaped container so that the cap can also be attached (for example, by a suitable heat shrinking process) around the bottom of the container, or even around the bottom of the container . In the embodiment shown in Figure 5, the width of the mat 160 is greater than the width of the cover in order to provide full support for the cover.
[000116] Referring to Figure 5, belt 160 is moving at speed V2166. Conductor 106 moves the containers at speed Vi 165. Track 160 will provide similar support to plate 111 according to Figure 2. Track 160 preferably moves at a speed (V2) 166 that is greater than the speed of conductor (vi) 165. In embodiments of the invention, the horizontal velocity component (velocity) (V2, x) of the velocity (V2) of the oblique part 141 of the belt is chosen to be essentially the same as the velocity of the conductor (vi). In order to achieve this, the speed of the treadmill (V2) must be greater than the speed of the driver.
[000117] Another reason to choose the speed of the belt so that it is greater than the speed of the driver is that a high speed can be used to tilt the containers in a forward direction while being driven by the driver. As a layer is launched upwardly 104 over the container 105, it will be accelerated on both sides, that is, in the direction 107. This can result in a skewed position of the layer, as illustrated by the cover 168 represented with dotted lines. As the bottom side of the cover is engaged by the track 160 moving at a higher speed, the cover can be tilted forward, causing the cover position to be corrected in the desired vertical direction.
[000118] Figure 5 shows that the ejected cover support element may comprise a mat 160 with an essentially horizontal cover support mat 180. For similar reasons discussed in connection with the embodiment of Figure 3A, mat 160 also it may have a part 188 arranged to extend obliquely with respect to the vertical direction.
[000119] In the embodiment of Figure 6, the mat 160 is guided along rollers 161,163,164 and is provided, between the part of the horizontal cover support mat 180 and the oblique part 188, with an oblique cover support mat part additional 181. This part of mat 181 forms a support ramp for the covers. After the cover has been launched on the container from below, the cover falls and the ramp formed by the oblique part 181 of the belt will provide support. As this part of track 181 is at an angle and the track is running faster than the driver, the cover is slightly tilted. The slope can create an opening to provide more space to launch the cover next to the next container.
[000120] In Figures 7A to 7C, different operating conditions for the capping system are shown. Referring to Figure 7A, when conductor 106 travels at a relatively low speed, the time interval between consecutive containers 182,183 passing through the mandrel is long enough to allow a cap to be released and arranged around the container when the container completely passed through the chuck 102 of the chuck unit.
[000121] Referring to Figure 7B, when the speed of the conductor increases and / or when the distance between consecutive containers is reduced (for example, when a plurality of containers is part of a product, as shown in Figure 8), the controller must control the system to launch the cap at an early stage, to allow the cap to reach the container in a timely manner, that is, before an additional container arrives. In the situation depicted in Figure 7B, the cap has already been partially released from the mandrel unit when the next container arrives.
[000122] Although the first container has already passed through the mandrel, the available space (see distance 186) is minimal. If the speed of the conductor is further increased, the cover for the second container will be blocked or its arrangement in the container will be at least made difficult (Figure 7C). This may cause interference to the system. In order to avoid this situation, the cap or cap in combination with the container is moved to the position shown in Figure 7c by the dotted lines.
[000123] Figure 10 shows an additional embodiment of the present invention. This modality corresponds to the modalities described in connection with Figure 7C, except that the device comprises a first track 160 and a second separate track 167. The first track is guided along rollers 163, 164, 190, 191 and comprises a first part of track 181 that extends obliquely with respect to the driver's transport direction and a second part of track 180 that extends parallel to the driver's transport direction (that is, in this case, the second part of track extends horizontally). The second track 167 is guided along a number of rollers, two tow rollers 192,193 of which are shown in the Figure. The second belt 167 extends parallel to the direction of transport of the driver (i.e., horizontally) as well. The speed of the first track 160 is selected to be greater than the speed of the conductor 106 and the speed of the second track 167 is selected to be the same or nearly the same as the speed of the conductor. The second belt 167 is configured to transport the covered containers to a position halfway to the heated steam oven 513. In that position, the covers can be shrunk around the containers.
[000124] In accordance with additional embodiments of the present invention, the cover and, possibly, also the container, are inclined. Because of the presence of the oblique track part 181 and / or the relatively high speed of the track, the cover can be tilted to a point where the cover, and possibly also the associated container, provides sufficient space to allow a subsequent cover to be thrown into a subsequent container. This modality allows an additional increase in the speed of the driver and, thus, an increase in the capping capacity of the capping system.
[000125] In the embodiment shown in Figures 5, 6 and 7 the lower part of the cover can be supported by an ejected cover support element (for example, a mat or a plate) that extends below the bottom part of the container. In other embodiments, for example, in the embodiments of Figures 9A and 9B where partial covers are provided, the cover must be attached to a higher position. In these embodiments, two or more supporting elements of the ejected cover are necessary to properly support the cover.
[000126] Figures 9A and 9B show, schematically, a cover support ejected in a side view and a front view, respectively. The cover 200 is ejected by ejectors 103 of the ejection unit from the mandrel 102 of the mandrel unit in the upward direction 104 to be arranged on the container 201. The ejected cover support elements 202, 203 of the ejected cover support are positioned on opposite sides along the transport path of containers 201 conducted by conductor 106 in direction 107.
[000127] In this example, the covers should be positioned generally halfway to the container. Here, a track 205 guided on rollers 206,207 provides guidance for cover 200.
[000128] Immediately after ejection, the cap 200 is disposed over the container 201. As a result of the gravitational force, the cap is allowed to "fall back" downwardly. The falling cap 211 is picked up by the mat 205. The part of the mat 208 that extends between rollers 206,207 will support the cap and guide the cap upwardly. The mat part 209 holds the cap 212 in its desired position, somehow halfway to the container. The cover is subsequently shrunk to the desired position.
[000129] The container product 511, 201 is, in a preferred embodiment of the invention, a thermoformed product formed from a plastic sheet, for example, with the use of deep inlay. Thermoforming can be part of the capping / labeling plant according to the invention, in particular part of the container supply. Figure 8 shows a perspective view of a thermoformed product suitable for containing yogurt. 2x3 containers 261 are part of product 260.
[000130] Although the exemplary embodiments show exclusively tapered containers, clearly the invention is not limited to such containers. Other shapes, shapes, sizes of containers can be used in combination with the invention.
[000131] Within the scope of this invention, many modalities are possible. The elements revealed in relation to any of the modalities mentioned above can be combined or replaced with elements from other modalities.

权利要求:
Claims (15)
[0001]
A container capping method for arranging at least one cap around at least one container, comprising: providing a container (105, 182, 183,511,201); arrange a cover (510, 200, 211, 212) of thin shrink-wrapped sheet (502) around the container, releasing the cover from a mandrel unit (506, 101) when ejecting (S5) the cover (510) towards the container, the ejected cap moving upward in the substantially opposite direction of the gravitational force to a position around the container; characterized by the fact that the ejection causes the cover to move without support from a position on a mandrel of the mandrel unit to a position where the cover is arranged around the container.
[0002]
2. Method according to claim 1, characterized by the fact that ejecting the cover comprises launching the cover (510) from the mandrel unit (506, 101) towards the container and sliding the cover over the container; and / or in which the covers are arranged around the container directly from the mandrel unit (506, 101) as a result of the kinetic energy conferred on the cover by ejecting the cover from the mandrel unit; and / or that the method comprises transmitting acceleration to the layers by means of a number of wheels or rollers, so that the layers are ejected in the direction of a container.
[0003]
Method according to claim 1 or 2, characterized by the fact that it comprises continuously conducting an arrangement of containers and arranging covers over consecutive containers while the containers are being conducted; and / or the mandrel unit (506, 101) is a stationary mandrel unit; and / or providing the containers comprises carrying the suspended containers with a downwardly extending end to be capped.
[0004]
Method according to any one of claims 1 to 3, characterized by the fact that it further comprises holding an ejected cap once it has reached the position around the container and / or before the cap falls from the container due the gravity; wherein holding the ejected cap arranged around the container preferably comprises moving the cap to a predetermined position with respect to the container, more preferably still moving the cap upwards or downwards to a suitable position to subsequently attach the cap to the container.
[0005]
Method according to any one of claims 1 to 4, characterized in that holding the ejected cover in position around the container comprises moving a mat (160, 205) below the cover arranged around the container while it is being driven, the belt being arranged so as to tilt the cover to a suitable position; wherein the conveyor is preferably moving at a greater speed than the container being driven; more preferably comprising causing the mat to move the ejected cap to an oblique position inclined forward to create space between the cap and a subsequent container, preferably comprising arranging an additional cap around a subsequent container after having tilted the front cap towards the tilted position and tilt the front cover back to a standing position once the subsequent container has been capped.
[0006]
6. Method according to any one of claims 1 to 5, characterized in that it comprises holding the cover consecutively on a first part of the mat (181) and a second part of the mat (180), the first and second part of the mat extend obliquely and horizontally, respectively; preferably further comprising: supporting a cover on a first mat (160) and a second mat (167), the first mat comprising the first part of the mat and the second part of the mat, where the speed of the first mat is greater than the speed of the driver and / or the speed of the second belt is essentially equal to the speed of the driver; or comprising holding a cover on a first mat (160) and a second mat (167), the first mat comprising the first mat part and the second mat comprising the second mat part, where the speed of the first mat is greater than the speed of the driver and / or the speed of the second track is essentially equal to the speed of the driver, which further comprises optionally holding the container on a third track after having held the container on the second track.
[0007]
Method according to any one of claims 1 to 6, characterized in that ejecting the cover from the mandrel unit (506, 101) comprises supplying a flat tubular thin sheet (502), opening the thin sheet (502 ) on the mandrel and cut layers from the thin sheet (502); and / or comprises transporting the container and cover arranged around the container in a heat shrink oven and thermo shrinking the cover around the container to fix the cover to the container; preferably comprising holding the ejected cap in position around the container until the container and cover are in the heating oven.
[0008]
Method according to any one of claims 1 to 7, characterized in that the cover arrangement comprises: a thermo shrinkable label in the form of an annular band over a body of said at least one container; and causing the label to adhere to said container; and / or in which providing containers comprises deep embedding or thermoforming packaging containers, such as receptacles or the like, in a strip of packaging material which has containers in at least one longitudinal row and which has a ring; and / or in which the containers are provided comprises providing thermoformed containers having a wedge-shaped surface, for example, a truncated conical surface, around which the cover is arranged.
[0009]
9. Container capping system (1) for arranging covers around containers comprising: a conductor (512, 106) for transporting containers (105, 182, 183, 511,201), and a cover provision for disposing heat shrinkable covers around containers carried by the conductor (512, 106), the cover supply comprises a mandrel unit (506, 101), the mandrel unit comprises an ejection unit (508) for ejecting the cover from the mandrel unit, the ejection unit being configured to move the cover upward in the substantially opposite direction of the gravitational force to a position around the container characterized by the fact that the cover moves unsupported from a position in a mandrel of the mandrel unit to a position where the sleeve is arranged around the container.
[0010]
10. System according to claim 9, characterized by the fact that the mandrel unit is configured to launch the cover from the mandrel unit towards the container causing the cover to slide over the container to the position where it the cover is arranged around the container; and / or in which the ejection unit (508) is configured to arrange the cover around the container directly from the mandrel unit as a result of the kinetic energy imparted to the cover by the ejection unit (508); and / or the ejection unit (508) comprises two rotating wheels to physically engage the cut cover, accelerate the cover and eject it from the mandrel over the container; and / or in which the ejection unit (508) is arranged to eject the cover while the container is being continuously driven by the conductor (512, 106).
[0011]
11. System according to claim 9 or 10, characterized in that the mandrel unit (506, 101) is a stationary mandrel unit; and / or the conductor (512, 106) is arranged to carry at least two adjacent rows of containers, in which at least two cover supplies, each comprising a mandrel unit (506, 101) and an ejection unit (512, 106) directed to the conductor (512, 106), are arranged to arrange a cover upwardly around the containers.
[0012]
System according to any one of claims 9 to 11, characterized by the fact that it further comprises a cover support ejected to support the cover arranged around the container; wherein the ejected cap support preferably comprises a plate (517) that extends along at least part of the conductor (512, 106), the plate being arranged to support a part of the circumferential edge of the cover arranged around the container ; and / or in which the ejected cover support preferably comprises a mat arranged to move below the conductor (512, 106), where the mat is preferably configured to tilt a layer arranged around a container to a suitable position; wherein the speed (166) of the conveyor and the speed of the conductor are preferably controlled so that the conveyor moves at a greater speed than the conductor (512, 106).
[0013]
13. System according to claim 12, characterized by the fact that the mat comprises a first part of the mat (181) and a second part of the mat (182) arranged to consecutively support a cover on the first part of the mat and second part of track respectively, with the first and second part of the track extending obliquely and horizontally in relation to the conductor (512, 106), respectively; wherein the system preferably or comprises a first track (160) comprising a first track part and second track part, and a second track (167), wherein the speed of the first track is greater than the speed of the driver, and the speed of the second track is essentially equal to the speed of the driver, or the system comprises a first track (160) and a second track (167), the first track comprising the first part of the track, and the second track comprising the second track conveyor part, where the speed of the first conveyor is greater than the speed of the conductor, and the velocity of the second conveyor is essentially equal to the velocity of the conductor, which also optionally comprises a third conveyor arranged to support a container after having been supported on the second belt.
[0014]
System according to any one of claims 12 to 13, characterized in that the conveyor is configured to move an ejected cover to an oblique position inclined forward to create space between the cover and a subsequent container; wherein the conveyor is preferably configured to move the cover back to a standing position, for example, a vertical position, once the subsequent container has been capped.
[0015]
15. System according to any one of claims 9 to 14, characterized by the fact that the cover supply is connectable to a flat tubular thermo shrinkable thin sheet supply (502), the cover supply comprising an opening unit for opening the tubular thin sheet (502), and a cutting unit for cutting covers from the open tubular thin sheet (502); and / or where the system further comprises a heat shrink oven to fix the cover to the container, and where the conductor (512, 106) is arranged to transport the container and the cover arranged around the container in the heat shrink oven, in that the ejected cover support preferably extends to the heat shrink oven; and / or wherein the system further comprises a container supply arranged to provide packaging containers such as receptacles or the like formed by deep embedding or thermoforming hourly into a strip of packaging material that has containers in at least a longitudinal row and that has a rim.

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同族专利:

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公开号 | 公开日

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RU2632286C2|2017-10-03|

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CA2875772C|2020-03-10|

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JP2015525713A|2015-09-07|

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NL2010272C2|2014-01-06|

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EP2867124A1|2015-05-06|

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BR112014030925A2|2017-06-27|

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RU2014150556A|2016-08-20|

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MX2014015141A|2015-03-05|

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CA2875772A1|2014-01-09|

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MX347572B|2017-05-03|

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JP6200952B2|2017-09-20|

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US10131460B2|2018-11-20|

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EP2867124B1|2017-10-11|

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ES2653989T3|2018-02-09|

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US20150121806A1|2015-05-07|

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WO2014006033A1|2014-01-09|

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PL2867124T3|2018-02-28|

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法律状态:
2018-12-04| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|

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2019-11-05| B06U| Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure|

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2020-08-04| B09A| Decision: intention to grant|

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2020-11-10| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 02/07/2013, OBSERVADAS AS CONDICOES LEGAIS. |

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