• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
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    • 专利摘要:
    Track-Through Material Line Processing System, Cushion Conversion Apparatus and Method for Processing Material Line This is a system for processing a line of material along a track and a tear assist device. The laceration assist apparatus comprises a drive part which drives the material line along the track, a sensing unit which detects the pull of the material line in a first direction along the track away from the part. and a cutting member, which cuts the material line. The sensing unit is associated with the drive part in such a way that, upon detecting the movement of the line in the first direction, the sensing unit causes the drive part to drive the material line in a second direction along the track to pull the material line against the cutting member to cut it. In another embodiment, when the sensing unit detects movement in the first direction, it causes the drive part to drive the material line in the second (...).
    公开号:BR112014006564B1
    申请号:R112014006564-0
    申请日:2012-09-20
    公开日:2021-04-20
    发明作者:Thomas D. Wetsch；Christopher M. Rains；Robert Tegel
    申请人:Pregis Innovative Packaging Llc；
    IPC主号:
    专利说明:

    Reference to Related Requests
    [0001] This application claims priority from US Patent Application No. 61/537,021, filed September 20, 2011, the disclosure of which is incorporated herein in its entirety by reference. Technical Field
    [0002] An apparatus for processing a line of material is disclosed. More specifically, an apparatus is revealed to help the user to tear the line of material at a desired point along it. Background of the Invention
    [0003] In the context of paper-based protective packaging, rolls of paper sheet are corrugated to produce the pad. Most commonly, this type of pad is created by passing a substantially continuous strip of paper through a pad converting machine, which converts a compact supply of stock material, such as a sheet or stack of paper, into a pad material. lower density. The continuous strip of corrugated sheet material can be cut to desired lengths to effectively fill the space within a container that holds a product. Cushion material can be produced as needed for a wrapper. Examples of snubber product machines that feed a sheet of paper from the innermost location of a roll are described in US Patent Publication Nos. 2008/0076653 and 2008/0261794. Another example of a snubber product machine is described in US Patent Publication No. 2009/0026306.
    [0004] At a selected point along the processed material line, the user may wish to cut the line in order to separate it into two or more parts. Current processing systems require the user to pull the thread against a cutting member in order to cut a part of it. This pull requires the user to exert force against the line.
    [0005] Therefore, it would be desirable to use an apparatus and line processing system with an apparatus to assist in tearing. More specifically, it would be desirable to use a device that reduces the force the user needs to exert to cut a line of processed material at a desired point. Invention Summary
    [0006] One embodiment includes a system for processing a line of material along a path and a tear assist apparatus. The laceration assist apparatus comprises a drive part which drives the material line along the track, a sensing unit which detects the pull of the material line in a first direction along the track away from the part. and a cutting member, which cuts the material line. The sensing unit is associated with the drive part in such a way that, upon detecting the movement of the line in the first direction, the sensing unit causes the drive part to drive the material line in a second direction along the track to pull the material line against the cutting member in order to cut it. In another embodiment, when the sensing unit detects movement in the first direction, it causes the drive part to drive the material line in the second direction a sufficient distance to cut part of the material line. The drive part can also be configured to drive the material line in the first direction along the way to dispense material.
    [0007] In still other configurations, the system still has a converting station, which includes the drive part and is operable in the first direction to convert a supply material into a low density pad and move the pad in a dispense direction along a material path. The cutting member cuts the pad when the drive member pulls material against it.
    [0008] In another embodiment of the pad converting apparatus, this has a converting station which is operable in a converting direction to convert a supply material into a low density pad and move the pad in a dispensing direction along a material path. The converting apparatus may also have a cutting member, which divides the track and the pad thereon into an output part, between the converting station and the cutting member and a separable part, in addition to the cutting member with respect to the conversion station. The pillow converting apparatus may also have a sensing unit configured to detect the pull of the separable part of the pillow in the way against the cutting member. The converting station may also operate in the reverse direction to pull the pad against the cutting member so that it cuts the pad when the separable pad portion is pulled against the cutting member at an angle to the exit portion. The sensing unit can also be operatively associated with the conversion station so that it operates in the reverse direction when the sensing unit detects a pull.
    [0009] In another embodiment, the converting station of the apparatus includes a drum and a compression part, which compresses the drum on an opposite side of the track from it in order to engage the material and the drum can be driven in the Conversion and inverse directions. The pressing part may also include a roller biased against the drum.
    [0010] In yet another apparatus, the converting station is configured to operate in the reverse direction enough to cut the pad on the separable part of the track. The cutting member may also have a blade which extends laterally close to the track. In other embodiments, the cutting member may be disposed on a single side of the track.
    [0011] In another embodiment, the track may be curved at the height of the cutting member, such that the output and detachable parts are misaligned with respect to each other. The sensor can also be configured to detect the resultant force of the pad against the cutting member in the curved path. In one embodiment, the sensing unit can sense force against the cutting member in order to detect pad traction. The force against the cutting member detected by the sensing unit can be in a direction laterally away from the way of the pad. In other embodiments, the cutting member comprises a movable blade and the sensor detects the distance of that blade from the track.
    [0012] In yet another embodiment, the force detected by the sensing unit results from the pull on the separable part of the pad in a direction such that the track bends over the cutting member, thus causing the output and separable parts to misalign in relation to each other.
    [0013] In yet another embodiment, the sensing unit detects the traction of the pad by detecting a movement of the material in the converting station in the dispensing direction caused by an external force. In other configurations, the converting station includes a rotating member, which drives the material in the dispensing direction while the converting station converts the material into a pillow and the sensing unit detects the pull of the pillow by detecting movement of the rotating member caused by an external force.
    [0014] In other embodiments, the cutting member connects to the converting station such that a movement of the driving part in the reverse direction causes a corresponding movement of the cutting member towards the pad on the track.
    [0015] In another embodiment, the pad converting apparatus has a converting station which is operable in a converting direction to convert a supply material into a low density pad and move the pad in a dispensing direction to the along a material path and a cutting member, which is disposed on a single side of the material path. The cutting member divides the track and the pad thereon into an output part, between the converting station and the cutting member and a separable part, in addition to the cutting member with respect to the converting station. The converting station can operate in the reverse direction to pull the pad against the cutting member so that it cuts the pad when the separable pad portion is pulled against it at an angle relative to the exit portion.
    [0016] In another embodiment, the converting station has a drum and a compression part, which compresses the drum on an opposite side of the track relative to it to engage the material. The drum can be guided in the converting and reverse directions. The pressing part can also comprise a roller biased against the drum. The conversion apparatus may also have a sensing unit configured to detect the pull of the pad on the separable part of the track against the cutting member. The sensing unit can be operatively associated with the conversion station so that it operates in the reverse direction when the sensing unit detects a pull. In other configurations, the converting station operates in reverse enough to cut the pad on the separable part of the track.
    [0017] A method for processing a line of material includes converting a supply material into a low-density pad and moving the pad in a dispense direction along a material path, detecting traction of the pad on a separable portion of the pad. via against a cutting member and responding to said detection by pulling the pad against the cutting member in the opposite direction, thus causing the cutting member to cut the pad when it is pulled by the separable part against it at an angle relative to the part. about to leave. Other advantages and innovative characteristics of the examples will be defined in the following description and, in part, will appear to those skilled in the art when analyzing the following description and the attached drawings, or may be apprehended by the practice or operation of the examples. The advantages of the concepts can be realized and obtained through the methodologies, instrumentalities and combinations particularly indicated in the attached Claims. Brief Description of Drawings
    [0018] The Figures of the drawings illustrate one or more implementations in accordance with the present concepts, by way of example only and not by way of limitation. In the Figures, like reference numerals refer to like or similar elements.
    [0019] FIG. 1 is the rear view of an embodiment of the in-line processing system and feed station.
    [0020] FIG. 2 is a front view of an embodiment of a line processing system with a laceration assist apparatus installed therein in accordance with the present invention;
    [0021] FIG. 3A is a side view of the system and apparatus of Fig. 2;
    [0022] FIG. 3B is a cross-sectional view of the line processing system;
    [0023] FIG. 4 is a front view of another embodiment of a line processing system with a laceration assist apparatus installed therein in accordance with the present invention;
    [0024] FIG. 5 is a side view of the system and apparatus of Fig. 4;
    [0025] FIG. 6 illustrates an embodiment of a laceration assist apparatus that includes an actuated cutting member;
    [0026] FIG. 7 illustrates a flowchart for operating the laceration assistance apparatus;
    [0027] FIG. 8 illustrates a systematic diagram of a laceration assist apparatus in accordance with the present invention. Detailed Description of Preferred Embodiments
    [0028] An apparatus for processing a line of material is disclosed. More specifically, an apparatus is revealed to help a user tear a line of material at a desired point along it. In general terms, the present invention applies to systems and apparatus where a supply material, preferably a material line, is processed. In an exemplary system, the material line comes from a source deposit, where the material line is stored on a roll (pulled from inside or outside the roll), on a reel, folded in a zigzag or in any other way. In one embodiment, the material line can be perforated. The material line is then processed, which includes taking it in a first direction, which can be a dispensing sense. In an exemplary system, the material line is fed from the store by a drive roller in a dispensing direction, which will be discussed in more detail below, in order to dispense the material line in that direction. The supply material may also be other types of protective packaging, including other cushion or gap-filling materials and inflatable packaging pillows. A specific application of the apparatus described in this document is the processing of cushion materials for packaging. Other applications can also be adopted, including lines of other paper-based materials or fibers in sheet form, lines of coiled fiber material such as cables or wires and lines of thermoplastic materials such as a plastic material network usable to form a pillow-shaped packaging material.
    [0029] With reference to Figs. 1-3, a 10-line processing system for processing a supply material is disclosed. The illustrated system includes a tear assist apparatus to assist the user in tearing or cutting the material at a desired point. In the preferred embodiment, the supply material is a material line 19, as illustrated in Fig. 3. The material line 19 is fed from the feed side of the conversion station 102, is converted by the conversion station 102 and, then, it is dispensed in a dispense direction on the output side of the converting station. As described in more detail below, the thread material 10 preferably includes a thread of sheet material wound on itself to form a roll which is later converted to pads. Multiple rolls can be daisy-chained.
    [0030] Fig. 1 illustrates an embodiment of system 10. In it, system 10 is configured to pull a continuous stream of supply material, preferably a line of material 19, from a feed station. System 10 is configured to pull a continuous stream from the feed station and feed it to a conversion station 102, which converts the high-density configuration to a low-density configuration. Material can be converted by wrinkling, bending, flattening, or other similar methods that convert a high density setting to a low density setting. In addition, it should be borne in mind that various structures of the converting station 102 may be adopted, such as the converting stations 102 disclosed in US Patent Publication No. 2012/0165172, US Patent Publication No. 2011/0052875 and in US 8,016,735. In one embodiment, system 10 is particularly adapted to pull sheet material from the center of a roll of sheet material, thereby creating a wound stream of material entering system 10, which will be described in more detail below.
    [0031] In one embodiment, the system 10 includes a support portion, to support the station, and an inlet guide 12, to guide the sheet material to the system 10. As illustrated in Figs. 2 and 3A, the support portion and inlet guide 12 are shown combined into a single elongated coiled or curved element that forms a support pole or pole. In this specific embodiment, the elongated element is a tube with a round cross section, similar to a pipe. Other cross sections can be adopted. In this illustrated embodiment, the outside diameter of the elongate element is about 1.5 inches. In other embodiments, the diameter ranges from about 0.75 inches to about 3 inches, or from about 1 inch to about 2 inches. Other diameters outside the mentioned range can also be used. The elongated element may extend from a floor base configured to provide lateral stability to the converting station. In one configuration, inlet guide 12 is a tubular member that also acts as a support member for the system. In embodiments where a tube is included, it may be bent around the central axis such that the longitudinal axis is bent by about 250° to about 300° to form a closed loop through which the line of material is fed.
    [0032] Preferably, the system 10 also includes an actuator for driving the material line 19. In the preferred embodiment, the actuator is an automatic or electric motor 11 or other driving device. Motor 11 connects to a power source, such as a socket, by means of a power cable and can be arranged or configured to drive system 10. Motor 11 can form part of a drive part, which may include a transmission part to transfer power from the engine 11. As an alternative, direct drive may be used. Motor 11 can be arranged in a housing and can be fixed on a first side of the central housing. The transmission can be contained within the central housing and can operatively connect to a drive shaft of the motor 11 and a drive part, thus transferring energy from the motor 11.
    [0033] During the operation of the preferred embodiment, the motor 11 dispenses the material line 19 leading it in a dispense direction, represented by the arrows "B" in Fig. 3. The motor 11 can be an electric motor whose operation is controlled by the system user, for example, by means of a pedal, a lever, a button or the like. Motor 11 connects to a cylindrical drive drum 17, illustrated in Fig. 2, which motor 11 rotates. The material line 19 is fed from the feed side 60 of the conversion station 102 and onto the drum 17, thus leading the material line 19 in the dispensing direction "B" when the motor 11 is in operation.
    [0034] In one embodiment, the system 10 includes a compression part, which may also include a compression member, such as a roller, several rollers or other similar elements. The rollers 14 can be supported by a bearing or other substantially frictionless device positioned on an axis disposed along the axis of the rollers 14. Alternatively, the rollers can be powered and motorized. The rollers 14 may have a circumferential pressing surface arranged in tangential contact with the surface of the drum 17. That is, for example, the distance between the drive axis or axis of rotation of the drum 17 and the axis of the rollers 14 can be substantially equal to the sum of the radii of the drum 17 and the rollers 14. The rollers 14 can be relatively wide, such as being from 0.25 to 0.50 the width of the drum, and can have a diameter similar to that of the drum, for example.
    [0035] In some embodiments, a roller 14 has a diameter of about 2 inches and a width of about 2 inches. In some embodiments, drum 17 has a diameter 94 of about 4 to 5 inches and a width of about 4 inches. Other roll diameters can also be used. The diameter of the rollers can be large enough to control the incoming material flow. In other words, for example, when the flow arriving at high speed deviates from the longitudinal direction, certain parts of the flow may come into contact with an exposed surface of the rollers, which forces the deviated parts towards the drum and helps to crush and wrinkle the resulting agglomerated material. In the preferred embodiment, motor 11 connects to a cylindrical drive drum 17, which motor 11 rotates. This embodiment may also include one or more drum guides 16 disposed over axial ends of drum 17 in a lateral position relative to the feed direction. Drum guides 16 help guide the sheet material towards the center of drum 17. A drum guide 16 can operatively connect to drum 17 to rotate freely with or without drum 17. As such, drum guide 16 can be supported off the drive shaft of the drum 17 by a bearing or other insulating element to allow the drum guide 16 to rotate relative to the drum 17. Furthermore, the drum guide 16 can be insulated from the axial side of the drum 17 by another space, bearing or other insulating element in order to minimize the transfer of rotational movement from drum 17 to guide 16. In other embodiments, outer drum guide 16 is supported by a bearing outside the axial outer side of drum 17 instead of outside the drive shaft, for example. Although a drum 17 connected to an actuator 11 is disclosed in this embodiment as the driving part for driving the material line in the dispensing direction, it is contemplated that other feeding methods are used, such as an automated motor.
    [0036] Referring to Fig. 3B, a compression member 13 with an engaged portion biased against the drum 17 is illustrated in order to engage and crush the sheet material 19 passing between them against the drum 17 in order to convert the sheet material. Compression member 13 may have a loose position away from the drum in order to release obstructions. The conversion station 102 may have a magnetic positioning control system configured to magnetically hold the compression member 13 in each of the engaged and released positions. The positioning control system can be configured to exert greater magnetic force to hold the compression member 13 in the engaged position than to keep the compression member 13 in the released position.
    [0037] For example, the compression part 13, which may include a compression member 13, can be arranged around a pivot axis such that, ignoring the force of gravity, the compression part 13 be substantially free to pivot in a direction that tends to separate rollers 14 of drum 17 around the pivot point. To resist this substantially free rotation, the compression part 13 is held in place by a positioning control system configured to keep the rollers 14 in tangential contact with the drum 17, except during or until the exercise of sufficient separating force and to keep the rollers 14 in a released position, once released. In this way, when material 19 passes between drum 17 and roller 14, the positioning control system resists separation between pressing portion 13 and drum 17, thus compressing the flow of sheet material and converting it into a low density pad. When the rollers 14 are released due to an obstruction or other force causing the release, the positioning control system holds the rollers 14 in the released position to allow someone to clear the obstruction and to prevent damage to the machine, to the agglomerated material. or to human members, for example.
    [0038] The positioning control system can include one or more propensity elements arranged and configured to maintain the positioning of the compression part 13, except during or until the exercise of a separating force. In the exemplary embodiment, the one or more propensity elements include a magnetic propensity element 196, as disclosed in US Publication 2012/0165172. The magnetic biasing element 196, illustrated in Fig. 3B, is positioned behind magnets 200 disposed in the central housing. The magnetic biasing element 196 resists the separating forces exerted on the compression part 113. In addition, the positioning control system also includes a release holding element 198, as shown in Fig. 3B, configured to hold the part. compression 13 in the open and loose condition once the necessary separating force is exerted and the compression part 13 is released. In the exemplary embodiment, the release-holding element can also be a magnetic-holding element 198. It is worth noting that the nature of the magnets makes the compression force require a minimum release force, which is the force exerted to overcome the force. magnet of the biasing element, so that the biasing force decreases as the biasing portion 13 separates from the drum 17. In this way, the biasing force of the magnets is substantially removed when the biasing portion 13 pivots to the released position.
    [0039] After releasing the compression part 13, the magnets in the release maintaining element act to keep the compression part 13 in the loose condition. In one configuration, the force required to release the compression part 13 may be greater than the force required to bring the compression part 13 back into the engaged position. This release mechanism can be advantageous in situations where the user incorrectly positions the adhesive in the supply unit, for example, and the supply units and adhesive cause the converting station 102 to jam. In this situation, after reaching the release force due to an obstruction, the compression part 13 moves to the released position, allowing the user to easily remove the obstruction and avoid damage to the conversion station 102.
    [0040] In the preferred embodiment, the system further includes a tearing assistance apparatus to facilitate the tearing or cutting of the material line 19. The tearing assistance apparatus facilitates the movement of the material line in a direction opposite to the direction of traction towards the feed side 60 of the conversion station 102, i.e. the reverse direction. Referring to Fig. 3A, as material line 19 is fed through the system in material path "B", drum 17 rotates in the converting direction (represented by direction "C") and line 19 passes through a cutting member 15. The material path has a direction in which material 19 is moved through the system.
    [0041] Preferably, the cutting member 15 can be curved downwardly in order to provide a guide for the material at the exit portion of the track as it leaves the system. Preferably, cutting member 15 is bent at an angle similar to the curve of drum 17, but other bending angles can be used. It is worth noting that the cutting member 15 is not limited to cutting material using a sharp blade, but may include a member that causes breakage, laceration, splitting or other methods of cutting the material line 19. The cutting member 15 can also be configured to cut material line 19 in part or in full.
    [0042] Preferably, the tear assist apparatus includes a single cutting member 15 which engages with line 19. The cutting member 15 may be arranged on a single side of the material path. In the preferred embodiment, it is disposed below the drum 17 and substantially along the material path. As shown in Fig. 2, the transverse width of the cutting member 15 is preferably at most about the width of the drum 17. In other embodiments, the width of the cutting member 15 is smaller or larger than that of the drum. 17. In one embodiment, the cutting member 15 is fixed; however, it is contemplated that, in other embodiments, it is movable or pivotable, as illustrated and described in Fig. 5 below.
    [0043] The cutting member 15 of Fig. 3A includes a cutting edge 20 at its front end, which is oriented away from the driving part. The cutting edge 20 is preferably configured enough to engage the material line 19 when it is pulled in the reverse direction, as described below. Cutting edge 20 may comprise a sharp or blunt edge, with a jagged or smooth configuration, and, in other embodiments, cutting edge 20 may be a serrated edge with many teeth, an edge with shallow teeth, or other usable configuration.
    [0044] The cutting member 15 may also include a finger guard 22, as illustrated in Fig. 3A, which protects the user from injuring himself between the converting station 102 and the cutting member 15. The finger guard 22 it can also be used to prevent pieces strayed from the material line 19 from falling between the cutting member 15 and the converting station 102, which could obstruct the converting station 102.
    [0045] In operation, the user feeds a desired length of line 19 on the feed side 60 of the conversion station 102 and the line 19 is then moved in a dispense direction by the motor 11 operation and dispensed on the output side 61. Drum 17 rotates together with line 19 and this is dispensed from the machine until it reaches a desired length. At this time, the operator stops motor 11 and the dispensing movement of line 19 stops. The user then pulls the line 19 in the “D” direction, which is downward and away from the feed side 60, in order to engage the line with the cutting member 15. The “D” direction is defined as the tangent direction to the drum 17, preferably at 90° from the axis of the drum, which is illustrated by line 191 in Fig. 3A.
    [0046] In the illustrative example shown in Fig. 3A, the material line 19 follows a material path. As discussed above, the material pathway has a direction in which material 19 traverses the system. The material path can also be divided into different segments: feed path, exit path and detachable path. In the embodiment illustrated in Fig. 3A, the line of material 19 on the exit side 61 substantially follows the path towards the cutting member 15 until it reaches the cutting edge 20. The cutting edge 20 defines a cutting location where the line is. cut off. In the embodiment illustrated in Fig. 3A, the material path bends over the cutting edge 20. The material line 19 on the output side of the converting station 102 can be divided into two parts at the point where the material path bends on the cutting edge 20: an outlet part 26, disposed between the drum 17 and the cutting member 15, and a separable part 24, disposed beyond the cutting member 15.
    [0047] The user pulls the separable part 24 of the material line 19 in a direction away from the feed line 60, which is illustrated by the line 191 in Fig. 3A and in a direction "D", which is tangent to the drum 17. By pulling the material line 19, the user activates the laceration assistance apparatus, which then moves the material line 19 in the reverse direction. The reverse direction can be defined as the opposite direction to the dispense or traction direction. When a cutting member 15 is included, the tear assist apparatus pulls the line 19 backwards so that it engages the cutting member 15 in order to cut it more easily. In an exemplary embodiment, when the direction of movement of the material line 19 is reversed, the cutting edge 20 of the cutting member 15 engages the material line 19 such that the forces exerted by the user in the "D" direction and by the reverse movement cooperatively cut the material line 19, in part or completely, at the height of the cutting edge 20. As shown in Fig. 3A, the angle "E" at which the user holds the material line 19 facilitates the engagement of cutting member 15 with material line 19. Angle "E" is defined as the angle between the dispensing direction of material line 19 at cutting edge 20 and the position at which separable part 24 is held by the user . The separable part 24 may also be, in some embodiments, the end part of the line of material 19. Preferably, the angle "E" at which the user pulls the separable part 24 of the material 19 is about 15°, more preferably , of about 15°, and more preferably of a maximum of 130°.
    [0048] In the preferred embodiment, the reverse movement of the material line 19 and the pulling of the material line 19 in an outward direction from the feed side 60 cooperatively engages the line 19 to the cutting edge 20 in such a way as to cut the line in part or in full. In another embodiment, the cutting edge 20 sufficiently grips the material line 19, for example, thanks to teeth or other elements, such that the force of the reverse movement and the resistance caused by the cutting edge 20 cause the 19 material line is either cut in part or completely. For example, in some embodiments, the teeth on the cutting edge 20 grip or engage with the material line 19, thereby partially piercing the material 19 at the sharp end of the teeth. In other configurations, for example, when the cutting edge 20 has no teeth, the cutting member grips and engages the material line 19 as it is pulled in the reverse direction, for example, causing it to tear. In some embodiments, it is necessary for the user to exert sufficient force on the breakaway portion 24 in order to grip the cutting edge 20 on the material line 19. In some configurations, the reverse movement on the material line 19 is sufficient to tear the line 19 in part or in full. In one embodiment, the reverse motion pulls a short distance, thereby forming a weakened area or partial tear on line 19. In other embodiments, the reverse motion pulls material line 19 enough to tear it.
    [0049] In other embodiments of the cutting member 15, this may be a bar that engages sufficiently with the material line 19 so that both the force of the user pulling in a given direction and the force of the tear assist device pulling the line of material 19 in the reverse direction cooperatively tear the line of material 19 in part or in whole. It should be kept in mind, however, that a court member need not be present; for example, when the line is pierced, the laceration assist device can act to help the user cut the line when piercing.
    [0050] In one embodiment of the laceration assistance apparatus, the reverse movement of the line may be caused by an actuator, or preferably by a motor 11. In this embodiment, the drum 17 rotates in the reverse direction (represented as direction " A") to move the line 19 in the reverse direction towards the feed side of the converting station 102. In one embodiment, as the drum 17 rotates in the reverse direction, part of the converted material line 19 is led back to the members of compression.
    [0051] Preferably, the drum 17 connects to the motor 11, which is the same motor 11 that moves the material line 19 in the dispensing direction. In an alternative configuration, there are several actuators, one of which moves the material line 19 in the dispense direction and the other moves the material line in the reverse direction. Alternatively, one or more other drums can be used, which can be connected to one or more actuators to cause reverse movement. In one embodiment, the reverse movement is caused by a spring or other mechanical member.
    [0052] The sensor is configured to detect parameters resulting from the traction, by the user, of the separable part of the pad out of the device and against the blade. In this embodiment, the sensor is configured to detect the current induced to motor 11 by the pad pulling motor 11 in the forward direction. Upon detecting the minimum current arising from a speed and/or minimum distance of the pad being pulled out of the machine, a movement initiated by the user pulling the material line 19 manually, the motor is activated in the reverse direction. Preferably, the user pulls the separable portion at an angle against the blade with a force of about at least 0.1 pound, more preferably about at least 1 pound, and most preferably about at least 2 pounds. Preferably, the activation force is about a maximum of 10 pounds and more preferably about a maximum of 4 pounds.
    [0053] In one embodiment, the sensing unit is configured to detect parameters arising from a traction initiated only by the user and not by another part of the device or due to a residual movement of the conversion station 102. conversion 102 is in operation, movement of the actuating part dispensing the material line 19 or other movements will not cause the sensing unit to activate the laceration assistance apparatus.
    [0054] In one embodiment of the sensing unit, when the proper activation force is exerted to the material line 19, the sensing unit sends a signal to the drive part to initiate a short rotational movement in the opposite direction to the dispensing direction, thus causing line 19 to be pulled in the opposite direction. As discussed above, this reverse movement and user traction cooperatively engages the material line 19 with the cutting member 15, causing the material line 19 to be torn or cut in part or completely. In this way, the tear assist device helps the user to tear the line. In one embodiment, this short reverse thrust causes the line 19 to more directly engage the cutting edge 20 of the cutting member 15 and thus helps the user to tear or cut the line 19. The cutting edge 20 grips enough the material line 19 so that the reverse pull caused by the driving part exerts an assisting force in the tearing and decreases the pulling force required by the user to cut the line 19.
    [0055] In some embodiments, the duration of the reverse rotation pulse initiated by motor 11 is less than one millisecond or less than 10 milliseconds or less than 100 milliseconds. In some embodiments, line 19 is pulled along the material path in a direction opposite to the dispensing direction, towards the feed side of the converting station, for a distance of at least about 0.25 inch, 0.5 inch, 1 inch, 2 inches, or 5 inches or more during the cutting operation. In the preferred embodiment, the line 19 is pulled in the opposite direction towards the infeed side for a sufficient distance, preferably from about 0.5 inch to 1 inch, such that the converted material line 19 is not pulled so far. towards the feed side so that it does not disengage from the converting station 102, which would require the material 19 to be reloaded there.
    [0056] In another embodiment, the sensing unit detects the traction movement by detecting the electric current or the electric voltage in the motor 11 while it does not operate. For example, when the user pulls line 19, drum 17 rotates, which in turn causes the motor to rotate. This rotation of motor 11 induces an electrical current to it, which can be detected by the sensing unit. At this time, the sensing unit causes the motor to operate, as discussed above, in the opposite direction to the dispense direction. In an alternative embodiment, traction movement is detected by the sensing unit using mechanical members, for example a key, button or similar member that engages and moves when the line 19 is pulled, which movement is detectable by the sensing unit.
    [0057] As discussed above, in the preferred embodiment, the supply material is a line of material 19, such as, preferably, a line of sheet material. The sheet material preferably has a basis weight of about 20 pounds to about 100 pounds maximum. Preferably, the material line 19 comprises a paper stock stored in a high-density configuration with a first longitudinal edge and a second longitudinal edge, which is later converted to a low-density configuration. In the preferred embodiment, the material line 19 is a strip of sheet material which is stored in the form of coreless rolls as illustrated in Fig. 1, where the first longitudinal end is the inner end 12 of the roll and the second longitudinal end it is the outer end 114 of the roll extending therefrom and opposite the outer end 114. The rolls are formed by winding the sheet material tape over itself to create several layers and preferably leave a hollow center. The axial height 38 of the rollers is preferably about 5 inches. The axial height 38 of the rollers is preferably about up to 80 inches. The outside diameter of the rollers is preferably about at least 5 inches. The diameter 39 of the rollers is preferably about up to 24 inches. The inner diameter of the center of rolls 4 is typically about at least 2 inches or at least 3 inches. The center diameter of the rollers is typically up to about 8 inches, more preferably up to about 6 or 4 inches. Other suitable dimensions of supply rollers can be used. In an exemplary embodiment of the rollers, the outside diameter 39 of the rollers is from about 11 inches to 12.25 inches and the inside diameter 41 is from about 3 inches to 6 inches.
    [0058] The sheet of material can be made of a single ply or of several plies of material. When multiple materials are used, a layer can include multiple tarpaulins. It is also contemplated that other types of material are used, such as recycled or virgin pulp-based papers, newsprint, cellulose and starch compositions, and synthetic or polysynthetic material of suitable thickness, weight and dimensions.
    [0059] In one embodiment, as illustrated in Fig. 1, the rollers comprise an adhesive 6 with a connecting member 16 and a base member 18, which are longitudinally adjacent to each other, as well as a release layer 20. Preferably, the adhesive facilitates daisy-chaining the rollers to form a continuous stream of sheet material that can be fed to the converting station 102. For example, as illustrated in Fig. 1, the inner end of the lower roller adheres to the outer end of an upper roll stacked directly on the lower roll. The inner end 12 of the upper roller is fed to the converting station 102. As the upper roller is deflated, the adhesive 6 pulls the inner end 12 of the lower roller to the converting station 102, thus creating a continuous flow. It is contemplated, however, that the procurement material will be arranged according to various configurations. For example, more than two rolls could be daisy-chained, only one roll could be loaded into system 10 at a time, or the supply material could be arranged in a zigzag folded pile, etc. In other configurations, the daisy-chained rollers may be held within a stabilizer 52, as shown in Fig. 1. The illustrated stabilizer 52 includes an opening at the front to allow the user, for example, to identify the rollers as well as detailed loading and operating instructions written, for example, on sticker 6. In one embodiment of the feed handling unit, several stabilizers 52 can be stacked and the rollers inside the stacked stabilizers 52 can be daisy-chained. In one embodiment of the stabilizer 52, it maintains the shape of the rollers and prevents the rollers from collapsing when there are only a few layers left on each roller because it gently exerts compressive pressure on the outer surface of the rollers.
    [0060] Preferably, the material 19 is fed to the conversion station 102 in the form of a coiled flux. It is contemplated, however, that the material is not oriented such as a coil, but, in alternative embodiments, it could be bent, crimped, flat with no coil, fold or wrinkle, or it could assume other similar configurations. The preferred width 30 of material fed through the converting station 102 is about at least 1 inch, more preferably about at least 2 inches, and most preferably about at least 4 inches. The preferred width 30 of material fed through the converting station 102 is about up to 30 inches, and more preferably about up to 10 inches. Preferred dimensions of material fed through conversion station 102 are about at least 4 inches thick. The preferred dimension 3 of the material fed through the converting station 102 is about up to 3 inches thick, and more preferably about up to 2 inches thick.
    [0061] Fig. 4 illustrates another exemplary embodiment of a system 10 that includes the laceration assist apparatus. In this embodiment, the sensing unit comprises a spring 28, a stop 34, an activation button 40, a sensor 38 and a sensing lever 36. The cutting member 15 is positioned on a pivotal axis 30, which allows the cutting member 15 moves in an outward direction away from the infeed side 60 when the user pulls the material line 19. The cutting member 15 can move by shifting the position of the cutting member 15, pivoting the cutting member 15 or by other similar movement of cutting member 15. Pivot shaft 30 extends the transverse width of cutting member 15 and is pivotally mounted to a bracket 32. A spring 28 is spiraled about pivot shaft 30 and is secured in this at the pivot end of spring 44. Spring 28 is also attached to bracket 32 at the pivot end of spring 42 opposite the pivot end of spring 44. A lever 36 is attached perpendicular to pivot shaft 30, as shown in FIG. .4 and positioned between the stop 34 and the sensor 38. In the rest position, which is defined as the position in which the laceration assist apparatus is not in use and the conversion station 102 is neither at rest nor dispensing material 19 in the direction of dispensing, the cutting member 15 is positioned biased towards the drum 17 and the lever 36 sufficiently depresses the activation button 40 of the sensor 38. Although the activation button 40 is in the depressed position, the laceration assist apparatus is not activated. After the lever 40 leaves the activation button 40, i.e., it no longer rests on the activation button 40, the sensor 38 is activated, thus activating the tear assist device, which pulls the material line 19 in the opposite direction. . In this embodiment, sensor 38 can be a key, such as a microkey, but other types of sensors can also be used.
    [0062] As illustrated in Fig. 5, during the operation of this embodiment, the converting station 102 converts and dispenses the material line 19 in a dispense direction "B". The user 50 (of which only the hands are illustrated) stops the operation of the converting station 102 and holds the material line 19. As discussed above, the user 50 preferably holds the detachable part 24 of the material line 19. Preferably, user 50 pulls material 19 outwardly and substantially downward relative to the dispensing direction. Preferably, user 50 pulls material 19 at an angle 54 with respect to exit portion 26 around cutting edge 20. Preferably, user 50 pulls material 19 at an angle 54 of about at least 15° more preferably from about at least 30°, and most preferably from about at least 45°. Preferably, user 50 pulls material 19 at an angle 54 of about a maximum of 110° and more preferably of about a maximum of 90°. Traction of user 50 on material line 19 generates a downward force 52 on cutting member 15, causing it to pivot around pivot shaft 30. This is illustrated in dashed lines in Fig. 5.
    [0063] The sensor 38 of this embodiment is configured to detect parameters arising from traction by the user on the separable part 24 of the pad away from the device and against the cutting member. In this embodiment, the sensor is configured to detect displacement, for example, rotation of the cutting member 15 around its pivot, which changes the condition of the sensor, such as a key. For example, as the cutting member 15 pivots downwardly, the lever 36 releases or lifts relative to the activation button 40. Upon detecting a minimum displacement of the cutting member 15 due to hand traction by part of the user, the motor is activated, thus causing reverse movement in the material line 19. Preferably, the force required to move the cutting member 15 is about at least 0.5 pounds, more preferably about about at least 1 pound, and more preferably about at least 2 pounds. Preferably, the activation force is about a maximum of 10 pounds and more preferably about a maximum of 4 pounds. As discussed above, this reverse movement and the force 52 exerted by the user 50 cooperatively causes the material line 19 to engage the cutting edge 20 and to be torn or cut in part or all of the material line 19. Preferably , there is a predetermined distance between the stop 34 and the sensor 38. This predetermined distance prevents the cutting member 15 from being pulled too far out with respect to the feed side.
    [0064] Fig. 6 illustrates an alternative embodiment of a system 10 with the laceration assist apparatus. In this embodiment, an alternatively configured cutting member 20 slopes up near its cutting edge, as illustrated. It connects, at its connecting end 21, to the central shaft of the drum 17. The connecting end 21 includes a unidirectional coupling that allows the cutting member to remain in the position illustrated during dispensing operations (“B” direction). However, when the reverse direction is initiated by pulling the line 19, unidirectional coupling at the connecting end 21 causes the cutting member 20 to rotate upwards as the drum 17 rotates in the reverse direction, as indicated by the arrow "A ”. In this way, the cutting member 15 is led upwards towards the line 19 as this is pulled back to the cutting member 20, thus increasing the cutting force exerted by the tear assist apparatus and thus decreasing the force required by the user to pull thread 19 in order to cut it.
    [0065] Fig. 7 illustrates a flowchart explanatory of a method to operate the laceration assistance apparatus. At step 150, line of material 19 is loaded into system 10. Line of material 19 can be arranged on rolls, in a stack of sheet material, or in any of the configurations described above. The material 19 is fed to the converting station 102 via the feed side 60. In step 152, the user operates the converting station 102 to convert the line of material 19 into a pad strip. The converting station 102 dispenses the material line 19 on the output side of the converting station 102 along a dispense path or direction. The user stops the converting station 102 at step 154. At this time, the separable part 24 of the material line 19 is pulled from the converting station and against the blade in an outward direction relative to the feed side, and, preferably, in a "D" direction, as illustrated in Fig. 3A and discussed above. The sensing unit detects the pull of material line 19 at step 158. As discussed above, in some embodiments, the sensing unit activates the tear assist apparatus when the downward force exerted on the cutting member reaches a limit, by example, 2 pounds. In other embodiments, a controller 1000 (illustrated in Fig. 8) is configured to control the laceration assistance apparatus, where an input of the sensing unit 31 in the controller 1000 activates the laceration assistance apparatus. The input from the sensing unit 31 to the controller can be a current, a displacement of the cutting member or other similar types of input. At step 160, control station 102 operates in the reverse direction to cooperatively pull the converted strip against cutting member 15 to cut a portion of the converted strip. As discussed above, the strip or line of converted material 19 is pulled in a reverse direction towards the feed side of the converting station 102 while also being pulled against the cutting member 15 in a direction away from the feed side of the converting station. conversion 102 in order to cooperatively tear the material line 19 in part or in whole.
    [0066] With reference to any of the above embodiments, as illustrated in FIG. 8, a controller 1000 may be included and configured to control the laceration assistance apparatus. An input to controller 1000 can come from a sensing unit 31, actuator 11, user controls 32, movement of cutting member 15 or any other component, schematically represented as one or more inputs 1001, 1002 etc. Controller 1000 may include, but is not limited to, a computer/processor, which includes, for example, one or more microprocessors and instructions for use stored in a computer-accessible medium (e.g., RAM, ROM, hard disk drive or other storage device).
    [0067] The 1000 controller may also include a computer accessible medium (for example, as described above, a storage device such as a hard disk drive, a floppy disk, a memory stick, CD-ROM, RAM, ROM, etc.). or a combination of these) (eg in communication with a processing system). Computer-accessible medium may contain executable instructions on it. In addition, or alternatively, a storage system may be included separate from the computer-accessible medium, which may provide instructions to the processing system in order to configure it to perform certain exemplary procedures, processes, and methods, as described. above, for example.
    [0068] Any and all references specifically identified in the descriptive report of the present invention are expressly incorporated into this document in its entirety by reference thereto. The term "about" as used in this document should be broadly interpreted to refer to both the corresponding number and a range of numbers. Furthermore, all number ranges in this document must be interpreted to include each whole number within it.
    [0069] Although illustrative embodiments of the invention have been disclosed, it will be appreciated that various modifications and other embodiments can be devised by those skilled in the art. For example, features from various embodiments can be used in other embodiments. Therefore, it is understood that the appended Claims are intended to cover all such modifications and embodiments that fall within the scope and essence of the present invention.
    权利要求:
    Claims (16)
    [0001]
    1. Cushion Conversion Apparatus, characterized in that it comprises: a conversion station, which is operable in a conversion direction to convert a supply material into a low density pad and move the pad in a dispensing direction along a path of material; a cutting member, which divides the path via and the pad thereon into: an output part, between the converting station and the cutting member, and a separable part, in addition to the cutting member from the converting station; and a sensing unit configured to detect a pull of the separable portion of the pad against the cutting member; wherein the converting station is operable in a reverse direction to pull the pad against the cutting member in order to cause the cutting member to cut the pad, when the separable part of the pad is pulled against the cutting member at an angle towards the output part, the sensing unit being operatively associated with the converting station to cause the converting station to operate in the reverse direction upon detecting the pull.
    [0002]
    A Cushion Conversion Apparatus according to Claim 1, characterized in that the conversion station is configured to operate in the reverse direction enough to separate the cushion into the separable part.
    [0003]
    Cushion Conversion Apparatus according to Claim 1, characterized in that the cutting member is disposed on a single side of the track path.
    [0004]
    Cushion Conversion Apparatus according to Claim 1, characterized in that the sensing unit detects a force against the cutting member in order to detect the traction of the cushion.
    [0005]
    A Cushion Conversion Apparatus according to Claim 4, characterized in that the force against the cutting member detected by the sensing unit is in a direction laterally away from the way of the cushion.
    [0006]
    Cushion Conversion Apparatus according to Claim 5, characterized in that the cutting member comprises a movable blade and the sensor detects the displacement of the blade away from the track.
    [0007]
    Pad Conversion Apparatus, according to Claim 1, characterized in that the sensing unit detects the traction of the pad by detecting the movement of the material in the conversion station in the dispensing direction caused by an external force.
    [0008]
    A Cushion Conversion Apparatus according to Claim 7, characterized in that: the converting station comprises a rotating member, which directs the material in the dispensing direction, while the converting station converts the material into a cushion; and the sensing unit detects the pad's traction by detecting the movement of the rotating member caused by an external force.
    [0009]
    9. Cushion Conversion Apparatus, characterized in that it comprises: a converting station, operable in a converting direction to convert a supply material into a low-density cushion and move the cushion in a dispensing direction along a path of material; a cutting member, arranged on a single lateral side of the material track, the cutting member dividing the track and the pad thereon into: an output part, between the converting station and the cutting member, a separable part, in addition of the cutting member from the converting station, wherein the converting station is operable in the reverse direction to pull the pad against the cutting member so that the cutting member cuts the pad when the pad in the separable part is pulled against the cutting member at an angle to the outlet part; and a sensing unit configured to detect a pull of the pad, the sensing unit being operatively associated with the conversion station to cause the conversion station to operate in the reverse direction after detecting the pull.
    [0010]
    Cushion Conversion Apparatus according to Claim 9, characterized in that the conversion station comprises a drum and a pressing part, which presses against the drum on an opposite side of the track to it, in order coupling the material, the drum being driven in the conversion and reverse directions.
    [0011]
    Cushion Conversion Apparatus according to Claim 9, characterized in that the conversion station is configured to operate in the reverse direction enough to separate the cushion in the separable part of the track.
    [0012]
    Cushion Conversion Apparatus according to Claim 9, characterized in that the conversion station comprises a drive part, in which the dispensing direction is along the path away from the drive part, the unit being sensing associated with the drive part to cause the drive part to operate to direct the material line in the reverse direction along the track to pull the pad in the reverse direction against the cutting member to make the cutting member cut the pad, when the pad is pulled against the cutting member at an angle to the outlet part.
    [0013]
    Cushion Conversion Apparatus according to Claim 9, characterized in that the conversion station comprises a drive part, in which the sensing unit is associated with the drive part to detect traction in the dispensing direction by detecting the movement of the actuating part which is caused by the pull of the pad in the dispensing direction.
    [0014]
    Cushion Conversion Apparatus according to Claim 9, characterized in that the sensing unit is configured to detect the pull in the dispensing direction by detecting a force being applied against the cutting member.
    [0015]
    Cushion Conversion Apparatus, according to Claim 9, characterized in that the sensing unit is configured to detect traction in the dispensing direction by detecting the displacement of the cutting member.
    [0016]
    16. Cushion Conversion Apparatus, characterized in that it comprises: a converting station operable in a converting direction to convert supply material to low density pillow and moving the pillow in a dispensing direction along a materials path; a cutting member disposed on a single lateral side of the materials path, the cutting member dividing the path and the pad thereon into: an outlet part between the converting station and the cutting member and a separable part in addition to the cutting member. cutting from the converting station, wherein the converting station is operable in a reverse direction to pull the pad against the cutting member to cause the cutting member to cut the pad, when the pad in the separable part is pulled against the cutting member at an angle to the output part.
    类似技术:
    公开号 | 公开日 | 专利标题
    BR112014006564B1|2021-04-20|cushion conversion devices
    US11241858B2|2022-02-08|Tear-assist blade
    JP6987747B2|2022-01-05|Converter
    US10071535B2|2018-09-11|Dunnage supply daisy chain stabilizer
    US20140038805A1|2014-02-06|Dunnage supply daisy chain connector
    JP2575261B2|1997-01-22|Winding apparatus and method for automatically winding a part of sheet material to form a separate tube
    BR112015023367B1|2021-11-30|SEPARATION EQUIPMENT
    GB2123384A|1984-02-01|Spool brake mechanism
    同族专利:
    公开号 | 公开日
    EP3292966B1|2021-05-05|
    EP3881991A1|2021-09-22|
    US9254578B2|2016-02-09|
    WO2013043942A1|2013-03-28|
    EP2758218A4|2015-05-20|
    HK1200405A1|2015-08-07|
    US10661523B2|2020-05-26|
    EP3292966A1|2018-03-14|
    US20130092716A1|2013-04-18|
    JP6174587B2|2017-08-02|
    PL2758218T3|2018-02-28|
    JP6517278B2|2019-05-22|
    JP2017206023A|2017-11-24|
    US20160151991A1|2016-06-02|
    CA2849084C|2018-07-03|
    BR112014006564A2|2017-03-28|
    CN104010782B|2017-02-22|
    EP2758218B1|2017-08-16|
    CN104010782A|2014-08-27|
    MX2014003434A|2014-08-22|
    CA2849084A1|2013-03-28|
    MX347088B|2017-04-11|
    MX363877B|2019-04-05|
    EP2758218A1|2014-07-30|
    JP2014530129A|2014-11-17|
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    法律状态:
    2018-03-27| B15K| Others concerning applications: alteration of classification|Ipc: B31D 5/00 (2017.01), A47K 10/32 (2006.01), B26D 5/ |
    2018-05-15| B15K| Others concerning applications: alteration of classification|Ipc: B26F 3/02 (2006.01), B31D 5/00 (2017.01), A47K 10/ |
    2018-12-11| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-07-16| B25D| Requested change of name of applicant approved|Owner name: PREGIS INNOVATIVE PACKAGING LLC (US) |
    2020-01-21| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2021-02-09| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-04-20| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 20/09/2012, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    US201161537021P| true| 2011-09-20|2011-09-20|
    US61/537,021|2011-09-20|
    PCT/US2012/056440|WO2013043942A1|2011-09-20|2012-09-20|Tear-assist apparatus|
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