• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    One aspect of the present invention provides a combination weighing device in which both convenience and durability can be improved from a user's point of view by replacing a screw unit. A combination weighing device comprises: a main body; multiple weighing units; vessels extending radially in the directions of the multiple weighing units from a center of the main body viewed from above; a helical screw unit disposed in the vessel for advancing an object in the vessel against the weighing unit, the screw unit rotating in the vessel to advance the object; and a rotary drive member rotating the screw assembly. At this point, one of the screw unit and the rotation drive member comprises a projection rotating about a fixed axis of rotation in a direction in which the screw unit is secured at one end, and the other comprises a grooved cam in which the projection is positioned and slides at one end. and after the projection is disposed in the grooved cam, the projection slides on the grooved cam by rotating the screw unit to secure the screw unit to the rotary drive member.
    公开号:DK201500149U1
    申请号:DK201500149U
    申请日:2015-11-18
    公开日:2016-07-08
    发明作者:Takao Eto
    申请人:Ishida Seisakusho；
    IPC主号:
    专利说明:

    TECHNICAL FIELD
    The present invention relates to a combination weighing device which advances an article supplied to a vessel by rotating a screw element located in the vessel.
    PRIOR ART
    Patent literature 1 describes a weighing device. The weighing device comprises a motor driven transport screw. The transport screw is shaped like a spiral rod. The conveyor screw adequately guides the objects from a feed unit to a weighing system, even if a product is unsuitable for vibration feeding.
    The transport screw and motor are coupled to each other by means of a spring and a ball. Therefore, the transport screw can be easily replaced from the engine.
    CITATION LIST
    patent Literature
    Patent Literature 1: JP 2008-537099 W
    BRIEF DESCRIPTION OF THE MOVEMENT
    Technical problem
    However, the weighing device described in Patent Literature 1 comprises a clutch mechanism with the spring and ball between the transport screw and the motor. Therefore, during replacement, it is always necessary for the user to reach out and place the user's hand near a coupling part of the transport screw and the motor.
    In a general weighing device, the coupling portion of the conveyor screw and motor are often located near a central portion of the main body of the weighing device as illustrated in FIG. 3 of Patent Literature 1. Considering the actual operation of replacing the conveyor screw, it is necessary for the user to perform the operation to extend the user's hand and the action to insert the user's hand into the coupling portion of the conveyor screw and the motor. For this reason, the convenience of the user and hygiene is not so good.
    It is also conceivable that the coupling mechanism with the spring and ball is disposed outside the coupling part of the transport screw and the motor. In this case, however, a physical distance between the coupling part of the transport screw and the motor and the coupling mechanism is actually increased. As a result, a space in which components are arranged is enlarged in the main body of the weighing device, resulting in increased costs and enlargement of the weighing device due to an increased number of components.
    The present invention provides a combination weighing device in which both the convenience and hygiene of replacing a screw element can be improved from the user's point of view.
    Solution to the Problem In accordance with one aspect of the present invention, a combination weighing device comprises: a main body; a plurality of weighing devices; vessels extending radially in the directions of the plurality of pathways from a center of a main body viewed from above; a screw unit which is a spiral element and which is disposed in the vessel for advancing an object in the vessel against the weighing device, wherein the screw unit rotates in the vessel for advancing the object; and a rotary drive member rotating the screw unit, wherein one of the screw unit and rotary drive member comprises a projection which rotates about a fixed axis of rotation in a direction in which the screw unit is secured at one end, and the other comprises a grooved cam in which the projection is disposed and slides. at one end, and after the protrusion is disposed in the grooved cam, the protrusion of the grooved cam slides by rotation of the screw unit to secure the screw unit to the rotary drive member.
    Beneficial Effect of Production In a combination weighing device according to the present invention, both the convenience and hygiene of replacing a screw element can be improved from the user's point of view.
    BRIEF DESCRIPTION OF THE DRAWING
    FIG. 1 is a schematic perspective view illustrating a combination weighing device 1 according to one embodiment.
    FIG. 2 is a schematic perspective view illustrating a distribution table 10 and a feed unit 20 of the combination weighing device of FIG. First
    FIG. 3 is a partial cross-sectional view illustrating the feed unit 20 of the combination weighing device 1 of FIG. 1 when the feed unit 20 is viewed laterally.
    FIG. 4 is a schematic plan view illustrating the combination weighing device of FIG. 1, when the combination weighing device 1 according to FIG. 1 is viewed from above.
    FIG. 5 is a schematic diagram illustrating a structure of a screw unit 30 of the embodiment.
    FIG. 6 is a view illustrating a frame 90 to which the screw unit 30 is attached and an opening 1001, a rotary drive member 1002 and a protrusion 1003 provided in the frame 90.
    FIG. 7 (a) and 7 (b) are views for explaining a structure of an outer diameter member 32 according to a modification.
    FIG. 8 is a view for explaining a structure of an aperture 1001 according to the modification.
    DESCRIPTION OF EMBODIMENTS
    In the following, an embodiment will be described in detail with reference to the drawings. However, the detailed description in addition to the necessary is sometimes omitted. For example, the detailed description of a well-known detail or the overlapping description of the substantially identical configuration is sometimes omitted. This is because unnecessary redundancy of the following description is avoided to facilitate understanding of the skilled artisan.
    The maker provides the attached drawing and the following description for those skilled in the art to understand the present invention sufficiently, but has no intention of limiting an object described in the scope of the requirements of the utility model registration in the attached drawing or the following description.
    embodiment
    An embodiment will be described below with reference to FIG. 1 to 8.
    (1 -1; overview of the entire operation)
    A combination weighing device 1 according to the invention will be described below with reference to the drawing.
    FIG. 1 is a schematic perspective view illustrating the combination path device 1 of the embodiment.
    The combination weighing device 1 according to FIG. 1 comprises a distribution table 10, feeder units 20, screw units 30, pool hoppers 40, weigh hoppers 50, auxiliary hoppers 60, and common dispensing units 70 and guide blocks 80.
    First, an overview of the operation of the combination weighing device 1 will be described.
    An article is fed to the combination weighing device 1 of a cross feed device (not illustrated) arranged in an upper part of the combination weighing device 1. At this point, the article is soft and sticky food such as raw chicken meat. However, the article is not limited to the soft and sticky food, but any food can be conveyed as long as the food is virtually not conveyed by conventional vibration conveying.
    The object conveyed by the cross-feed device is supplied to a substantially central portion of the distribution table 10. The distribution table 10 is driven to be rotated about a axis of rotation C extending vertically (see Fig. 1). The distribution table 10 advances the article fed from above to an outer face in a radial direction, while the article is distributed in a circumferential direction. The article distributed and conveyed by the distribution table 10 is delivered from an outer periphery of the distribution table 10.
    The article discharged from the distribution table 10 is supplied to the plurality of feeding units 20 arranged circularly beneath the distribution table 10. The plurality of feeding units 20 extend radially from the center of the distribution table 10. In other words, the plurality of feeding units 20 extend radially from the center of the combination weighing device 1. On at this point, the guide block 80 is disposed between the feeding units 20 adjacent to each other. The action of the stool block 80 prevents the object from falling between the feeding units 20. Each feeding unit 20 advances the article supplied from the distribution table 10 against the pool funnel 40, which is arranged around the distribution table 10, while corresponding to the feeding unit 20 on a one to one basis. In particular, the screw unit 30 disposed in a vessel 21 is rotated in each feeder unit 20 to move the article in the vessel 21. Each feeder unit 20 dumps the feeder into the pool hopper 40 located in a lower portion of the outer end portion of the feeder unit 20 ( lower portion of an outer end portion of the vessel 21), thereby supplying the article to the pool hopper 40.
    Each pool hopper 40 temporarily holds the article supplied from the feed unit 20. Subsequently, pool hopper 40 supplies the held article to the corresponding weigh hopper 50, which is located below the pool hopper 40 on a one to one basis. Each weighing funnel 50 weighs a weight of the object using a weighing mechanism (not illustrated). The object discharged from the weighing funnel 50 is accommodated and held temporarily by the corresponding auxiliary funnel 60 which is located below the weighing funnel 50 on a one to one basis.
    Based on the weights of the objects in the weigh hopper 50 and the auxiliary hopper 60, a control unit (not illustrated) of the combination weighing device 1 calculates and obtains a combination of the hoppers which is matched to or is almost a target weight among combinations of permitted weights. The item in the hopper included in the combination calculated and obtained by the control unit is delivered to the common release slate 70. The object delivered to the common release slate 70 is fed to a downstream process (not illustrated).
    (1-2; description of each component of combination weighing device 1)
    The distribution table 10, feed unit 20, pool hopper 40, weigh hopper 50 and auxiliary hopper 60 of combination weighing device 1 will be described below with reference to the drawing.
    FIG. 2 is a schematic perspective view illustrating the distribution table 10 of the combination weighing device 1 and the feeding unit 20 of the combination weighing device 1 according to FIG. 1. FIG. 2 illustrates a condition in which the guide block 80 is removed.
    FIG. 3 is a partial cross-sectional view illustrating the distribution table 10 of the combination weighing device 1 and the feeding unit 20 of the combination weighing device 1 according to FIG. 1 when the distribution table 10 and the feed unit 20 are viewed laterally. In FIG. 3, a front side of the drawing of a concave groove 22 of the vessel 21 in the feed unit 20 is omitted. A section of a holder of the screw unit 30 in the feed unit 20 is illustrated.
    FIG. 4 is a schematic plan view illustrating the combination weighing device 1 of FIG. 1 when the combination weighing device 1 is viewed from above. FIG. 4 illustrates a condition in which the distribution table 10 is taken off. Only one position of the outer edge of the distribution table 10 is indicated by a line of one long and two short alternating lines.
    The distribution table 10 is an element which distributes the article supplied from the cross feed device (not illustrated) located in the upper part of the combination weighing device 1. The distribution table 10 supplies the distributed article to the feeding unit 20.
    The distribution table 10 is made in a substantially circular shape from above. The distribution table 10 comprises a tapered unit 11 located in the central portion and a peripheral unit 12 disposed in the periphery of the tapered unit 11 (see Fig. 2). Both the conical unit 11 and the peripheral unit 12 are inclined so that the peripheral side of the distribution table 10 is lowered (see Fig. 3). The inclination of the conical unit 11 is steeper than that of the peripheral unit 12 (see Fig. 3).
    The distribution table 10 is supported by a drive shaft (not illustrated) located below the distribution table 10. The drive shaft supporting the distribution table 10 is coupled to a distribution table motor (not illustrated). Powered by the distribution table motor, the distribution table 10 rotates about the axis of rotation C extending vertically. In this case, the distribution table 10 can be rotated in a single direction or the direction of rotation of the distribution table 10 can be changed as time passes.
    When the article is fed from the cross-feed device (not illustrated) located in the upper part of the combination weighing device 1 to a proximity in the central portion of the distribution table 10 rotated by the distribution table motor, the distribution table 10 advances the applied article to the exterior in the radial direction while the article is distributed in the radial direction. the circumferential direction of the centrifugal force. The article distributed and advanced by the distribution table 10 is dispensed from the outer periphery of the distribution table 10 and dumped into the vessel 21 by one of the feeding units 20 (see Fig. 2).
    The feeder unit 20 is an element which feeds the article supplied from the distribution table 10. The combination weighing device 1 according to the embodiment comprises 14 feeder units 20. However, the 14 feeder units 20 are indicated by way of example, but the number of feeder units 20 is not limited to the 14 feeder units 20.
    The plurality of feeding units 20 are arranged below the distribution table 10 such that they surround the distribution table 10 (see Fig. 2). Seen from above, the plurality of feeding units 20 extend radially from the surroundings of the distribution table 10 to the pool funnels 40 arranged around the distribution table 10 (see Fig. 4). More precisely, the plurality of feeding units 20 extend radially from a space below the distribution table 10 (see Fig. 3) toward the pool funnels 40 located in the vicinity of the distribution table 10. One weighing funnel 50 is provided below each corresponding pool funnel 40 (see Fig. 1). That is, the feed units 20 extend radially from the surroundings of the distribution table 10 against the weighing funnels 50 located in the surroundings of the distribution table 10. The feeding unit 20 advances the object distributed by the distribution table 10 against the weighing funnel 50 (in a feeding direction D according to Fig. 3).
    Fiver feed unit 20 mainly comprises tub 21 and screw unit 30 (see Fig. 2). The screw unit 30 is arranged in the vessel 21.
    The vessel 21 extends from the space below the distribution table 10 towards the pool funnel 40 corresponding to the vessel 21 (see Figs. 3 and 4). the raised vessel 21 extends radially with respect to the center of the distribution table 10 seen from above (see Fig. 4). The vessels 21 comprised of the plurality of feed units 20 extend radially from the distribution table 10 as a whole (see Fig. 4).
    This vessel 21 is separated from an inner space by the frame 90 by an upstream side wall 91 (see Fig. 3). The frame 90 is positioned below the distribution table 10 to support the distribution table 10. The frame 90 comprises an opening 1001 into which the screw unit 30 is inserted. In frame 90, at least one rotary drive element 1002 (which will be described later), which transmits driving force to the screw unit 30, is the space in the inner space of the aperture 1001 (see Fig. 3). The rotation drive element 1002 is connected to a motor provided in a main body of the combination weighing device 1 and is rotated about a rotation axis D shown in FIG. 3 when the engine is running.
    Each vessel 21 extends from the upstream side wall 91 and comprises the concave groove 22 comprising a semicircular curved inner surface 22a (see Fig. 2). The concave groove 22 is formed as a downwardly concave groove shape of the semi-circular curved inner surface 22a. Seen from above, the concave groove 22 of the vessel 21 extends radially outwardly from the upstream side wall 91 to the pool hopper 40 relative to the center of the distribution table 10. The concave groove 22 is inclined so that the outer edge side of the concave groove 22 is lowered, in particular. such that the side of the pool funnel 40 is lower than the side of the distribution table 10 (see Fig. 3).
    The object delivered from the outer periphery of the distribution table 10 is supplied to the vessel 21. As the triangular prism-shaped guide block 80 is disposed between the vessels 21 adjacent to each other (see Fig. 1), the object is supplied to one of the vessels without falling into the space between the vessels 21 adjoining. each other from the distribution table 10.
    The article supplied to the vessel 21 is advanced by rotating the screw unit 30 disposed in the vessel 21. More precisely, the screw unit 30 advances the object against the pool hopper 40 by rotating a screw element 31 located in the vessel 21.
    One screw assembly 30 is arranged in each vessel 21 (see Fig. 4). The object dumped in the vessel 21 is advanced in the vessel 21 by rotating the screw unit 30. A configuration of the screw unit 30 is described later.
    One pool hopper 40 is provided below an outer edge side of each tub 21. Pool hopper 40 accommodates and temporarily holds the item conveyed from feed unit 20. Pool hopper 40 feeds the temporarily held item to weigh hopper 50 provided below pool hopper 40 by opening a gate (not illustrated). which can be opened provided in a bottom portion of the pool hopper 40.
    The weigh hopper 50 is an example of the weighing means. The weighing funnels 50 are disposed in the vicinity of the distribution table 10. In particular, one weighing funnel 50 is provided below each pool hopper 40. In other words, one weighing hopper 50 is provided below the outer edge side of the tub 21 of each feeding unit 20. The hopper 50 accommodates and temporarily holds the object. supplied from the pool hopper 40. The weigh hopper 50 supplies the temporarily held article to the hopper 60 provided below the hopper 50 by opening a port (not illustrated) which can be opened provided in a bottom portion of the hopper 50.
    Each weighing funnel 50 comprises a weighing instrument (not illustrated) which weighs the weight of the object in the weighing funnel 50. For example, the weighing instrument is a weighing cell. A weighing result of the weighing instrument is transmitted to the control unit (not illustrated) by the combination weighing device 1.
    One auxiliary funnel 60 is provided below each weighing funnel 50. The auxiliary funnel 60 is configured to accommodate and temporarily hold the article supplied from the weighing funnel 50. The auxiliary funnel 60 feeds the temporarily held object to the common dispensing tray 70 provided below the auxiliary funnel 60 by not opening a gate ( illustrated) which can be opened provided in a bottom part of the auxiliary funnel 60. When the auxiliary funnel 60 opens the door (not illustrated) which can be opened provided in the bottom part of the auxiliary funnel 60 upon receipt of the object from the weighing funnel 50, then the article can be fed to the common dispensing slide. 70, while the auxiliary funnel 60 does not hold the object temporarily.
    (2-1; Specific configuration of screw unit 30)
    The configuration of the screw unit 30 will be described below with reference to the drawing.
    FIG. 5 is a schematic diagram illustrating a structure of the screw unit 30 according to the embodiment. In FIG. 5, structures of linear elements 31a and 31b are partially omitted for convenience of description.
    FIG. 5 illustrates a condition in which an outer diameter member 32 is cut in a predetermined plane for the purpose of understanding a relationship between a grooved cam provided in an inner diameter member 33 and the outer diameter member 32 disposed about the grooved cam.
    FIG. 6 is a view illustrating the frame 90 to which the screw unit 30 is attached and the aperture 1001, the rotary drive member 1002 and the protrusion 1003 provided in the frame 90.
    As shown in FIG. 5 and 6, the screw unit 30 is fixed in the opening 1001 formed in the frame 90 by a user.
    At this point, the aperture 1001 has a hollow structure formed in the frame 90. The rotation drive element 1002 connected to the motor is disposed within the aperture 1001.
    The rotation drive element 1002 is connected to the motor (not illustrated) and is rotated about the axis of rotation D of FIG. 3 by operating the engine. The axis of rotation D is fixed in a direction substantially identical to a direction in which the screw unit 30 is inserted into the opening 1001.
    The protrusion 1003 is formed at one end of the rotary drive member 1002. The protrusion 1003 rotates about the axis of rotation D while the rotary drive member 1002 rotates. The projection 1003 is disposed in the grooved cam formed in the inner diameter member 33, and the projection 1003 can move as it slides on the grooved cam.
    As shown in FIG. 5, the screw unit 30 mainly comprises the screw element 31, the outer diameter element 32 and the inner diameter element 33.
    As shown in FIG. 3, the screw member 31 comprises at least the linear member 31a cast in a spiral shape. Sometimes the screw member 31 further comprises the linear member 31b. At this point, the linear member 31b extends in the same direction as the linear member 31a, but the linear member 31b does not physically intersect the linear member 31a. Sections of the linear elements 31a and 31b may be constructed with a perfect circle.
    Alternatively, the sections of the linear elements 31a and 31b may be constructed in a multilayered shape such as a square. In case the sections of the linear elements 31a and 31b are constructed with the multilateral shape, a transport capacity of the object is increased as what is called corners are formed in the linear elements.
    The screw member 31 is coupled to the inner diameter member 33, and the screw member 31 also rotates with the rotation of the inner diameter member 33. That is, the inner diameter member 33 rotates in the same direction of rotation as the rotary drive member 1002 at the rotation of the rotary drive member 1002 in FIG. 6. The rotation of the inner diameter element 33 rotates the screw element 31 coupled to the inner diameter element 33. In the rotation of the screw element 31, the object is advanced in the vessel 21 and supplied to the pool hopper 40.
    The outer diameter member 32 is a cylindrical member connected to the screw member 31. As the inner diameter member 33 is disposed within the outer diameter member 32, the outer diameter member 32 has a donut shape in cross section. The outer diameter element 32 is disposed about the inner diameter element 33 with a bearing interposed therebetween, and the outer diameter element 32 is configured to have a small influence on the rotary operation of the inner diameter element 33. That is, although inner diameter member 33 rotates, so outer diameter member 32 does not rotate by receiving a rotating force of inner diameter member 33.
    The inner diameter member 33 is a cylindrical member coupled to the screw member 31. The inner diameter member 33 has the donut shape in cross section, the rotary drive member 1002 and the projection 1003 being inserted into the interior of the inner diameter member 33. The inner diameter member 33 is arranged in a compartment. formed within the outer diameter member 32. The inner diameter member 33 comprises the grooved cam into which the projection 1003 is disposed. The projection 1003 slides on the grooved cam while it is placed in the grooved cam. A spiral groove is formed in the grooved comb. In particular, the grooved cam comprises a groove formed in a helical shape from a starting point at which the projection 1003 is initially placed in the inner diameter member 33. As the projection 1003 slides on and moves in the grooved cam, the inner diameter member 33 is inserted into the the main body.
    For convenience of description, a portion in which the projection 1003 is initially applied when the screw assembly 30 is attached to the main body is referred to as a first grooved cam portion. A part in which the projection 1003 slides and moves when the projection 1003 is placed in the first grooved cam part is referred to as a second grooved cam part.
    The first grooved cam part and the second grooved cam part are physically formed in one piece. That is, after the protrusion 1003 slides on and moves in the first grooved cam part, the protrusion 1003 can slide continuously on and move in the second grooved cam part. However, it is necessary for the user to change the direction of the force applied to the screw unit 30 to move the projection 1003 from the first grooved cam part to the second grooved cam part or from the second grooved cam part to the first grooved cam part.
    More precisely and preferably, a direction in which the projection 1003 slides and moves is discontinuous in a portion in which the first grooved cam portion and the second grooved cam portion are interchanged. In particular, the first grooved cam part has the configuration in which the grooved cam is formed in the same direction as the axis of rotation D, and the second grooved cam part has the configuration in which the grooved cam is formed in the spiral shape with respect to the outer periphery of the inner diameter member 33rd
    In these configurations, the action performed by placing the projection 1003 in the first grooved cam portion may be different from the action performed by sliding and moving the projection 1003 in the first grooved cam portion and the second grooved cam portion. In the case that the projection 1003 is disposed in the first grooved cam part, the user can apply the force in the same direction as the axis of rotation D. Therefore, even if the user poorly sees the section in which the projection 1003 and the first grooved cam part are attached to each other, For example, users may intuitively place the screw unit 30 in the projection 1003.
    The configuration of the first grooved cam part and the second grooved cam part is not limited to the above configurations, but any configuration can be used as long as the force applied to the screw unit 30 by the user is changed.
    The inner diameter member 33 also comprises a first portion and a second portion. The first part is one in which the outer periphery of the inner diameter element 33 is not covered with the outer diameter element 32. That is, the first part of the inner diameter element 33 is configured so that it is visually recognizable to the user by attaching the screw assembly 30 to the main body. For example, even in the case that the user attaches the screw unit 30 to the main body, the user can fasten the screw unit 30 during visual recognition of both the first grooved cam part formed in the first part and the projection 1003. Therefore, the convenience of the user in attaching the screw unit 30 improved. On the other hand, the second portion is one in which the outer periphery of the inner diameter member 33 is covered with the outer diameter member 32. Therefore, the user cannot visually recognize the other portion by attaching the screw assembly 30. However, for example, the outer member periphery is covered with the outer diameter element 32, the outer periphery is virtually not dirty from moisture generated from the article. Therefore, hygiene can be improved.
    In this case, at least the first grooved cam part is formed relative to the first part. At least the second grooved cam part is formed relative to the other part. At least part of the second grooved cam part may be formed in the first part. At least part of the first grooved cam part may be formed in the second part.
    As described above, the outer diameter member 32 and the inner diameter member 33 of the embodiment are divided into the first portion not covered by the outer diameter member 32 and the second portion covered with the outer diameter member 32. Therefore, both the convenience of the user during the fastening and hygiene during the operation of the combination path device 1 improved.
    (2-2; User action to attach screw unit 30 to frame 90)
    The user's action to attach the screw unit 30 to the frame 90 will be described below.
    The user holds the screw unit 30. At this point, the user places the projection 1003 formed in the rotary drive member 1002 in the first grooved cam part during visual recognition of the first grooved cam part formed in the first part of the inner diameter element 33.
    The user then rotates the screw member 31 while the projection 1003 is disposed in the first grooved cam part. Therefore, the projection 1003 is moved from the first grooved cam part to the second grooved cam part while it is being pushed, and the projection 1003 is moved in the second grooved cam part while it is being pushed. At this point, since at least the second grooved cam part is formed in the spiral shape, the screw unit 30 is inserted into the opening 1001 with the movement of the projection 1003 on the second grooved cam part.
    The user places the outer diameter element 32 in the opening 1001 under visual recognition of the outer diameter element 32 and the user rotates the screw element 31.
    The projection 1003 slides and moves on the second grooved cam part, reaching a closing end of the second grooved cam part. At this point, the user can no longer rotate the screw member 31. Therefore, the user can attach the screw unit 30 to the frame 90.
    (2-3; user action to disconnect screw unit 30 from main body)
    The user's action to disconnect the screw unit 30 from the frame 90 will be described below.
    As the protrusion 1003 reaches the terminating end of the second grooved cam part, the user rotates the screw member 31 in the opposite direction of the rotational direction in which the screw unit 30 is secured. As the user rotates the screw member 31 in the opposite direction of the rotational direction of attachment, the projection 1003 slides on and moves in the second grooved cam part.
    The user can disconnect the outer diameter member 32 from the opening 1001 by continuously rotating the screw unit 31. At this point, the projection 1003 does not move from the second grooved cam part to the first grooved cam part solely by the act of rotating the screw member 31. That is, the user can not rotate the screw member 31 anymore when the projection 1003 reaches the second grooved cam part. At this point, the user pulls the screw member 31 up from the opening 1001 in a direction of the axis of rotation D, which allows the user to disconnect the screw unit 30 from the frame 90. That is, the projection 1003 is configured to move from the second grooved cam part to the first grooved cam part by the thesis except rotation, which allows the user to prevent the screw unit 30 from falling out of the main body at an undesirable time due to the excessive rotation of the screw member 31. The unforeseen fall of the screw unit 30 from the main body can be reduced. malfunction caused by the waste of screw unit 30 is reduced. In particular, the screw unit 30 of the combination weighing device 1 is a long and thin element and often the weight is concentrated on the part in which the screw unit 30 is attached to the frame 90. For this reason, it is important to form the first grooved cam part and second grooved cam part as described above. with a view to increasing user convenience.
    The above operation allows the user to disconnect the screw unit 30 from the main body.
    (3; Summary)
    The combination weighing device 1 according to the embodiment comprises the frame 90, the plurality of pool funnels 40, the tub 21 which temporarily holds the externally supplied article, and the screw unit 30 extending radially in the directions of the plurality of pot funnels 40 from the center of the main body seen from above, where the screw unit 30 is the spiral element which advances the object held in the vessel 21 against the pool funnels 40, with the screw unit 30 rotating in the vessel 21 to advance the object. In the combination weighing device 1, the frame 90 comprises the aperture 1001 to which the plurality of screw units 30 are attached and the projection 1003 disposed in the aperture 1001 to rotate about the axis of rotation attached in the direction in which the screw unit is attached to the aperture. The screw unit 30 comprises the grooved cam in which the projection 1003 disposed in the opening 1001 is disposed at the end of the screw unit 30, where the protrusion 1003 slides on the grooved cam. The grooved comb hard helical grooved comb structure formed from the end towards the direction of the opposite end. As the screw unit 30 is rotated after the projection 1003 is placed in the grooved cam, the projection 1003 slides on the grooved cam to insert the screw unit 30 into the opening 1001.
    In the configuration, when the screw unit 30 is attached or disconnected to or from the frame 90, the user rotates the screw unit 30 with the user's hand, which allows the user to fasten or disconnect the screw unit 30 to or from the frame 90. Therefore, the convenience of the user and hygiene can be improved as the user can fastening or disconnecting the screw assembly 30 to or from the frame 90 without reaching the interior of the frame 90 to manipulate the disconnect mechanism.
    Conventionally, for the combination weighing device 1, in which the guide block 80 is positioned between the vessels 21, it is necessary for the user to extend after the small space formed between the guide blocks 80 adjacent to one another to replace the screw unit 30. In the embodiment, on the other hand, even if the guide block 80 is disposed between the vessels 21, the user can perform the disconnection work simply by rotating the end of the screw unit 30. Therefore, it can be prevented that a portion of the user's arm becomes dirty when the user reaches for the small space formed between the guide blocks 80 adjacent to each other. to improve hygiene.
    In the combination weighing device 1 according to the embodiment, the end of the screw unit 30 comprises the inner diameter element 33 comprising the grooved cam and the outer diameter element 32 which is arranged in an outer periphery of the inner diameter element 33, where the first part of the inner diameter element 33 does not is covered by the outer diameter element 32, but the first portion comprises the first grooved cam portion of the grooved cam, wherein the first cam portion projection 1003 is initially inserted when the screw unit 30 is inserted into the aperture 1001, and the second portion different from the first portion. part in that the inner diameter element 33 is covered with the outer diameter element 32.
    According to the configuration, the part covered with the outer diameter element 32 and the part not covered with the outer diameter element 32 can be formed relative to the inner diameter element 33. Therefore, the user can attach the screw unit 30 to the frame 90 under the check of the part which is not covered with the outer diameter element 32, in the inner diameter element 33. Therefore, the convenience of the user can be improved when the screw unit 30 is attached to the frame 90. In the inner diameter element 33 the part covered with the outer diameter element 32 is virtually not damaged by the object. supplied from the distribution table 10 to the vessel 21. Therefore, both the convenience of the user and the hygiene can be improved.
    In the screw unit 30, the direction of rotation in which the user disengages the screw unit 30 may be different from the direction of rotation in which the object held in the vessel 21 is advanced. In other words, the first direction of rotation in which the rotation drive member 1002 rotates the screw unit 30 to advance the object is different from the second direction of rotation in which the screw unit 30 is rotated to attach the screw unit 30 to the rotation drive device 1002.
    Therefore, the screw unit 30 rotates in the attachment direction as the screw unit 30 advances the object so that the screw unit 30 can be prevented from falling out of frame 90 or from loosening.
    When the screw unit 30 is attached to or disconnected from the frame 90, a locking mechanism can be provided so that the rotary drive member 1002 does not rotate. As the user rotates the screw unit 30 to secure or disassemble the screw unit 30 to or from the frame 90, the rotary drive element 1002 sometimes rotates with the rotation of the screw element 30, depending on the friction between the projection 1003 and the grooved cam. Therefore, the locking mechanism is provided so that the rotary drive member 1002 does not rotate, thereby improving convenience when the user attaches or disconnects the screw unit 30 to or from the frame 90. The act of engaging and disengaging the locking mechanism can be performed when the user issues a similar instruction or instruction. The locking mechanism can be operated when the disconnection of the screw unit 30 is detected by a sensor or the like.
    (4-1; First Modification) In the combination path device 1, the outer diameter element 32 and the aperture 1001 may be formed in shapes as illustrated in FIG. 7 and 8.
    FIG. 7 (a) and 7 (b) are views for explaining a structure of the outer diameter member 32 according to a first modification. For ease of description, the grooved cam formed in the inner diameter element 33 is omitted in FIG. 7 (a) and 7 (b). FIG. 7 (a) is a view illustrating a structure when the outer diameter member 32 and the inner diameter member 33 are viewed laterally. In FIG. 7 (a), a shaded portion indicates a flat unit formed in the outer diameter member 32. In FIG. 7 (a) indicates a gray portion of the inner diameter element 33. FIG. 7 (b) is a view illustrating the structure when the outer diameter element 32 and the inner diameter element 33 are viewed in a direction A of FIG. 7 (a). In FIG. 7 (b), the gray portion indicates the inner diameter element 33, and a black area indicates an inner space formed between the inner diameter element 33 and the outer diameter element 32.
    FIG. 8 is a view for explaining a structure of the aperture 1001 of the modification.
    The outer diameter element 32 has the structure (the shaded portion of Fig. 7 (a)) in which the at least one flat unit is formed in a portion of the outer periphery and the aperture 1001 has the structure in which the same number of linear units (see Fig. 8) as the flat units formed in the outer diameter element 32 are formed in the portion of the outer periphery. The flat unit formed in the outer diameter element 32 and the linear unit formed in the opening are joined together as the screw unit 30 is attached to the frame 90.
    In the configuration, the flat unit formed in the outer diameter element 32 and the linear unit formed in the opening 1001 are joined together, while the screw unit 30 is attached to the frame 90. Thus, the flat unit and the linear unit are joined together in a manner front to front, thus that the rusting of the screw unit 30 relative to the frame 90 can be reduced even when the screw element 31 advances the object in the combination weighing device 1.
    FIG. 7 (a), 7 (b) and 8 illustrate the examples in which the two flat units and the two linear units are formed in the outer diameter element 32 and the aperture 1001. However, the flat units and the linear units are not limited to the aforementioned configuration, and three flat units and linear units, or at least four flat units and linear units, may be formed in the event that the rattle of screw unit 30 may be reduced when screw unit 30 is attached to frame 90. Alternatively, one flat unit and one linear unit have been formed.
    The linear unit in the opening 1001 may be formed in the substantially vertically downward direction, or the linear unit may be formed in the orthogonal direction in the vertically downward direction. The retention of the moisture or flying objects caused by the object in the linear unit can be reduced in the case that the linear unit is formed in the substantially vertically downward direction. Therefore, hygiene can be improved.
    (4-2; Other modification) In the configuration of the embodiment, the inner diameter element 33 comprises the grooved cam, and the rotary drive member 1002 comprises the projection 1003. However, the embodiment is not limited to the above configuration and the grooved cam may be formed in the rotary drive member 1002, while the outer diameter member 32 may comprise the projection 1003.
    That is, the combination weighing device may comprise: the plurality of pool funnels 40, the vessel 21 extending radially in the directions of the multiple weighing units from the center of the main body in a plan view, the helical unit screw unit 30 disposed in the tub 21 for advancing the object in the vessel 21 against the pool funnel 40, where the screw unit 30 rotates in the vessel 21 for advancing the object, and the rotary drive element 1002 rotating the screw unit 30. In the combination weighing device, one of the screw unit 30 and the rotary drive element 1002 comprises the projection 1003 which rotates about which is fixed in the direction in which the screw unit 30 is secured at one end and the other comprises the grooved cam in which the forward spring 1003 is disposed and slides at one end and after the projection 1003 is disposed in the grooved comb. the projection 1003 of the grooved cam by a rotation of the screw unit 30 to attach the screw unit 30 to the rotation drive element.
    In the configuration, when the screw unit 30 is attached or disconnected to or from the frame 90, the user rotates the screw unit 30 by the user's hand, allowing the user to attach or disconnect the screw unit 30 to or from the frame 90. Therefore, the convenience of the user and hygiene can be improved, the user can fasten or disconnect the screw unit 30 to or from the frame 90 without reaching the interior of the frame 90 to manipulate the disconnect mechanism.
    The grooved cam formed in the inner diameter member 33 or the rotary drive member 1002 can be secured when the projection 1003 is rotated by 360 degrees. The grooved cam can be secured when the projection 1003 is rotated by 720 degrees. According to the embodiment, the protrusion 1003 and the screw unit 30 can be fixed to one another as the protrusion 1003 is rotated at an angle set by a designer in a wider range of from 90 ° to 1080 °. At this point, when the angle of rotation is set to a predetermined angle in the range of 360 ° to 720 °, the twisting of the user's arm is reduced so that the convenience of the user can be improved.
    Although the embodiment is described above as the illustration of the technology described in the present application, the technology described in the present specification is not limited to the embodiment, but the technology can be properly applied to the embodiment after modifications, replacements, additions and deletions. A new embodiment may be provided by a combination of the components described in the embodiment and the modifications.
    The embodiment is described above as an example of the technology of the present invention, and the attached drawing and detailed description are given for this purpose.
    Accordingly, not only the components needed to solve the problem but also the components not needed to solve the problem may be included in the components described in the accompanying drawing and detailed description to illustrate the above technology. Therefore, it is noted that even if the components not needed to solve the problem are included in the attached drawing and detailed description, then the components which are not needed to solve the problem should not be considered as necessary components.
    As the embodiment is used to illustrate the technology of the present invention, various modifications, replacements, additions and deletions can be made without departing from the scope of the requirements of the utility model registration or a scope equivalent thereto.
    INDUSTRIAL APPLICABILITY
    The present invention can be used for a combination welding device in which a screw unit is replaced by the replacement of an object.
    LIST OF REFERENCE FIGURES
    1 Combination weighing device 10 Distribution table 20 Feeding unit 21 Vessel 22 Concave groove 22a Inner surface of concave groove (screw element of the vessel facing the surface) 30 Screw unit 31 Screw element 31a Linear element 31b Linear element 32 Outer diameter element 33 Inner diameter element 40 Pulley funnel 60 Common delivery slides 80 Guide block 1001 Opening 1002 Rotary drive element 1003 Projection D Feed direction of feed unit (feed direction of feed means)
    权利要求:
    Claims (11)
    [1]
    A combination weighing device comprising: a main body; a plurality of weighing units; vessels extending radially in the directions of the plurality of weighing units from a center of the main body viewed from above; a helical screw unit disposed in the vessel for advancing an object in the vessel against the weighing unit, the screw unit rotating in the vessel to advance the object; and a rotary drive member rotating the screw assembly, wherein one of the screw unit and rotary drive member comprises a projection at one end, and another of the screw unit and rotary drive member comprises a grooved cam in which the projection is disposed and slides at one end and the projection slides on the grooved end. comb by rotating the screw unit to secure the screw unit to the rotation drive element.
    [2]
    A combination weighing device according to claim 1, further comprising: a distribution table distributing an input article; and a guide block disposed between the vessels adjacent to each other to prevent the object distributed from the distribution table from falling into a space between the vessels adjacent to each other; wherein the screw unit advances the article supplied from the distribution table to the vessel against the weighing unit.
    [3]
    Combination weighing device according to any one of claims 1 and 2, wherein a first direction of rotation, in which the rotation drive element rotates the screw unit to advance the object, is different from a second direction of rotation in which the screw unit is rotated to attach the screw unit to the rotation drive element.
    [4]
    Combination weighing device according to any one of claims 1 to 3, wherein the end of the screw unit comprises an inner diameter element comprising the grooved cam and an outer diameter element disposed in an outer periphery of the inner diameter element, wherein a first part of the inner diameter member is not covered with the outer diameter member, and the first portion comprises a first grooved cam portion of the grooved cam, in which the first grooved cam portion is initially arranged to secure the grooved comb, and a second portion which is different from the first portion in that the inner diameter member is covered with the outer diameter member and the second portion comprises a second grooved cam portion except the first grooved cam portion of the grooved comb.
    [5]
    Combination weighing device according to any one of claims 1 to 3, wherein one end of the screw unit comprises an inner diameter element comprising the projection and an outer diameter element disposed in an outer periphery of the inner diameter element, wherein a first part of the the inner diameter element is not covered with the outer diameter element, and the first part further comprises the projection, and a second part is different from the first part in that the inner diameter element is covered with the outer diameter element.
    [6]
    Combination weighing device according to any one of claims 4 and 5, further comprising an opening formed around the rotary drive element, the end of the screw unit being arranged in the opening when the screw unit is attached to the rotary drive element, where the outer diameter element has a structure, wherein at least one flat unit is formed in the portion of the outer periphery, the opening having a structure in which the same number of linear units as the flat units formed in the outer diameter member are formed in the portion of the outer periphery, and wherein the flat unit formed in the outer diameter element and the linear unit formed in the opening are joined together as the screw unit is attached to the rotary drive element.
    [7]
    Combination weighing device according to claim 6, wherein the linear unit of the opening is formed in a substantially vertical downward direction.
    [8]
    Combination weighing device according to any one of claims 1 and 2, wherein the grooved cam comprises a first grooved cam part and a second grooved cam part, wherein the first grooved cam part and the second grooved cam part are formed in one piece in the grooved comb, and wherein a direction in which the projection slides on the first grooved cam part is different from a direction in which the projection slides on the second grooved cam part.
    [9]
    Combination weighing device according to any one of claims 1 to 8, wherein the screw unit is attached to the rotary drive element when the screw unit is rotated at an angle within a range of 90 ° to 1080 °, after the projection is arranged in the grooved cam.
    [10]
    Combination weighing device according to claim 9, wherein the screw unit is attached to the rotary drive element when the screw unit is rotated at an angle within a range of from 360 ° to 720 °, after the projection is placed in the grooved cam.
    [11]
    Combination weighing device according to claim 9, wherein the screw unit is attached to the rotary drive element when the screw unit is rotated 360 ° after the projection is placed in the grooved cam.
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    同族专利:
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    CN105765356B|2020-05-19|
    RU2016105118A3|2018-06-07|
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    JP3195388U|2015-01-15|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    JP2014005794U|JP3195388U|2014-10-31|2014-10-31|Combination weighing device|
    PCT/JP2015/067511|WO2016067673A1|2014-10-31|2015-06-17|Combination weighing apparatus|
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