JP6536298B2 - Transport device - Google Patents

Description

  The present invention relates to a transport apparatus.

  As a conventional transfer apparatus, there is known a transfer apparatus which sequentially transfers a work to the source of each apparatus such as a processing machine and an inspection machine installed along a production line. As one of such transport apparatuses, there is a transport apparatus which places and transports a work on a circulating pallet. For example, the pallet conveying device described in Patent Document 1 travels a pallet, a first pallet rail and a second pallet rail movably mounting the pallet, and the pallet along the first pallet rail and the second pallet rail. And a second pallet feeding mechanism. The first pallet feeding mechanism has an endless first belt engaged with the pallet mounted on the first pallet rail, and a circulation mechanism including a servomotor for circulating the first belt. The second pallet feeding mechanism has an endless second belt engaged with the pallet mounted on the second pallet rail, and a circulation mechanism including a servomotor for circulating the second belt.

JP 2011-93032 A

  In the transport apparatus as described above, the same number of pallet feeding mechanisms as the pallet rails are provided. Therefore, the same number of belts and servomotors as the pallet rails are required, and a reduction in the number of parts is required.

  An object of the present invention is to provide a conveyance device capable of circulating a pallet while reducing the number of parts.

  The transport apparatus according to the present invention is a transport apparatus for transporting a work, which is a pallet on which the work is placed, and first and second rails disposed parallel to each other and guiding the pallet in the transport direction, and the pallet Drive mechanism for moving the pallet along the first rail and the second rail, a first transport mechanism for transporting the pallet from the downstream end side of the first rail to the upstream end side of the second rail, and the downstream side of the second rail And a second transfer mechanism for transferring the pallet from the end side to the upstream end side of the first rail, the drive mechanism having an endless toothed belt having an annularly formed tooth portion, the pallet being A first meshing provided on the upper and lower sides of the main body with a main body having a groove that engages with the first rail and the second rail, and meshing with the teeth of the toothed belt when the pallet is positioned on the first rail Department and Provided above and below the other side of the main body portion, having a second meshing portion that meshes with teeth of the toothed belt when the pallet is positioned on the second rail.

  In this conveyance device, when the pallet is positioned on the first rail, the teeth of the toothed belt mesh with the first meshing portion of the pallet, and when the pallet is positioned on the second rail, the toothed belt Teeth mesh with the second meshing portion of the pallet. This allows the pallet to travel along a plurality of rails by one toothed belt. Therefore, the pallet can be circulated while reducing the number of parts.

  In the transport device according to the present invention, the teeth may be provided on the outer surface of the toothed belt. Thus, the pallet is located outside the toothed belt. Therefore, it is easy to transport the pallet to another transport device or the like.

  In the transport device according to the present invention, the teeth may be provided on the inner surface of the toothed belt. Thereby, the pallet is located inside the toothed belt. Therefore, the transfer of the pallet between the first rail and the second rail is facilitated, and the circulation of the pallet can be smoothly performed. In addition, the first transfer mechanism and the second transfer mechanism can be configured simply.

  In the transport device according to the present invention, the first meshing portion and the second meshing portion may be assembled to the main body. As a result, the first meshing portion and the second meshing portion do not have to be processed directly into the pallet, and cost reduction can be achieved.

  According to the present invention, it is possible to circulate the pallet while reducing the number of parts.

It is a side view which shows typically the conveying apparatus single-piece concerning a 1st embodiment. It is a top view which shows the conveying apparatus of FIG. FIG. 3 is a cross-sectional view taken along the line III-III in FIG. It is a side view which shows the operation | movement of the conveyance apparatus following FIG. It is a top view which shows operation | movement of the conveying apparatus following FIG. It is a side view which shows an example of the conveyance system to which the conveyance apparatus of FIG. 1 was applied. It is a top view which shows the conveyance system of FIG. It is a side view which shows typically the conveying apparatus which concerns on 2nd Embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the description of the drawings, the same elements will be denoted by the same reference symbols and redundant description will be omitted.

First Embodiment
The transport apparatus 1 according to the first embodiment will be described with reference to FIGS. 1 to 3. Moreover, with reference to FIG.6 and FIG.7, the case where several conveyance apparatuses are installed along a production line and it uses as a conveyance system is demonstrated. The transport apparatus 1 transports the workpiece W to an apparatus such as a processing machine or an inspection machine installed along a production line. This production line corresponds to, for example, a part of the assembly process of the stacked secondary battery. In this case, the work W is a laminate of electrodes which is a precursor of the electrode assembly. The processing machine and inspection machine are a pressure device for pressing the laminate of electrodes, a thickness inspection device for measuring thickness after pressurization, a thickness adjustment device for inserting a predetermined number of thickness adjustment films based on measurement results, a laminate and thickness For example, a fixing device for fixing the adjustment film with a tape.

  As shown in FIG. 1, the transport apparatus 1 is disposed parallel to each other so as to face the plurality of pallets 10 on which the workpiece W is placed and the vertical direction (hereinafter referred to as "Z direction"). The first rail 20 and the second rail 30, which guide the vehicle 10 in the horizontal direction (conveying direction) (hereinafter referred to as "the X direction"), and the pallet 10 travel along the first rail 20 and the second rail 30 Drive mechanism 40, a first transport mechanism 50 for transporting the pallet 10 from the downstream end side of the first rail 20 to the upstream end side of the second rail 30, and the downstream end side of the second rail 30 And a second transfer mechanism 60 for transferring the pallet 10 to the upstream end side.

  The plurality of pallets 10 are arranged along the traveling direction. The pallet 10 has the main-body part 11 which presents the plate shape which makes a Z direction the thickness direction, as FIG. 3 shows. The work W is placed on the upper surface of the main body 11. The main body 11 is provided with a groove 11a that fits with a guide 22 of a first rail 20 and a guide 32 of a second rail 30, which will be described later. The groove 11 a is open on the lower surface side of the main body 11. The groove 11a extends in the X direction. In the main body portion 11, the area on which the work W is placed and the area including the groove 11a may be integrally formed. Alternatively, in the main body portion 11, the groove portion 11a may be worn by sliding relative to the first rail 20 and the second rail 30, so that the region including the groove portion 11a is exchanged for the region on which the work W is placed. It is good also as another possible member. Further detailed configuration of the pallet 10 will be described later.

  The first rail 20 guides the pallet 10 in one direction (direction from left to right in FIG. 1) in the X direction, as shown in FIGS. 1 and 2. The first rail 20 has a base portion 21 extending in the X direction, and a guide portion 22 located on the base portion 21. As shown in FIG. 3, the guide portion 22 is provided in a protruding manner at a central portion in the horizontal direction (hereinafter referred to as “Y direction”) orthogonal to the X direction and the Z direction on the upper surface of the base portion 21. The guide 22 fits in the groove 11 a of the pallet 10. When the pallet 10 travels on the first rail 20, the main body portion 11 slides along the guide portion 22. A thickness inspection device (not shown) is disposed adjacent to the first rail 20.

  The second rail 30 guides the pallet 10 in the other direction (direction from right to left in FIG. 1) in the X direction. The second rail 30 is disposed below the first rail 20 so as to be separated from the first rail 20. The second rail 30 has a base portion 31 extending in the X direction, and a guide portion 32 located on the base portion 31. The guide portion 32 is provided in a protruding manner at a central portion in the Y direction on the upper surface of the base portion 31. The guide portion 32 fits in the groove portion 11 a of the pallet 10. When the pallet 10 travels on the second rail 30, the main body portion 11 slides along the guide portion 32.

  The first rail 20 and the second rail 30 substantially coincide with each other when viewed from the Z direction. That is, as shown in FIG. 1, the downstream end of the first rail 20 (right end of the first rail 20 in FIG. 1) and the upstream end of the second rail 30 (right end of the second rail 30 in FIG. 1) They are aligned with each other in the X direction. The upstream end of the first rail 20 (the left end of the first rail 20 in FIG. 1) and the downstream end of the second rail 30 (the left end of the second rail 30 in FIG. 1) are aligned with each other in the X direction.

  The drive mechanism 40 has an endless toothed belt 41. The toothed belt 41 is a so-called timing belt. The toothed belt 41 has an elliptical ring shape including a major axis parallel to the X direction and a minor axis parallel to the Z direction. The toothed belt 41 is disposed adjacent to the first rail 20 and the second rail 30. More specifically, the toothed belt 41 has two extending portions opposed in the Z direction and two curved portions connecting the two extending portions. The upper extension is adjacent to the first rail 20 and parallel to the first rail 20. The lower extension is adjacent to the second rail 30 and parallel to the second rail 30.

  The toothed belt 41 has a tooth portion 42 formed in an elliptical ring shape (annular shape). The teeth 42 are provided on the outer surface of the toothed belt 41. The plurality of convex portions constituting the tooth portion 42 are arranged in parallel on the outer surface along the circumferential direction of the toothed belt 41. The drive mechanism 40 further includes a drive pulley and a driven pulley, which are not shown. The toothed belt 41 is wound around the drive pulley and the driven pulley. The toothed belt 41 rotates with the drive pulley.

  The first transfer mechanism 50 is disposed at the downstream end side of the first rail 20 (the right end of the first rail 20 in FIG. 1). In other words, the first transfer mechanism 50 is disposed on the upstream end side of the second rail 30. The first transfer mechanism 50 includes a rail portion 51, an elevating portion 52 that raises and lowers the rail portion 51 in the Z direction, and a horizontal moving portion 53 that moves the rail portion 51 in the Y direction.

  The rail portion 51 has a base portion 51a extending in the X direction and a guide portion 51b located on the base portion 51a. The guide portion 51b is provided in a protruding manner at a central portion in the Y direction on the upper surface of the base portion 51a. The guide portion 51 b fits in the groove portion 11 a of the pallet 10.

  The lifting unit 52 is, for example, an air cylinder having a rod 52a. The rod 52a is connected to the bottom surface of the rail portion 51, and expands and contracts in the Z direction. When the rod 52a is extended, the rail portion 51 is positioned lateral to the downstream end of the first rail 20, and the rail portion 51 and the first rail 20 become horizontal to each other. Thereby, movement of the pallet 10 from the downstream end of the first rail 20 to the rail portion 51 becomes possible. When the rod 52a is contracted, the rail portion 51 is positioned beside the upstream end of the second rail 30, and the rail portion 51 and the second rail 30 become horizontal to each other. Thus, the pallet 10 can be moved from the rail portion 51 to the second rail 30.

  The horizontal movement unit 53 has a movement guide 53a extending in the Y direction. The horizontal movement unit 53 further includes a drive unit whose illustration is omitted. When the drive unit is driven, the elevation unit 52 horizontally moves in the Y direction along the movement guide 53a. Along with this, the rail portion 51 connected to the elevating portion 52 also horizontally moves in the Y direction.

  The second transfer mechanism 60 is disposed on the upstream end side of the first rail 20 (the left end of the first rail 20 in FIG. 1). In other words, the second transfer mechanism 60 is disposed on the downstream end side of the second rail 30. The second transfer mechanism 60 has a rail portion 61, an elevating portion 62 for moving the rail portion 61 up and down in the Z direction, and a horizontal moving portion 63 for horizontally moving the rail portion 61 in the Y direction.

  The rail portion 61 has a base portion 61a extending in the X direction and a guide portion 61b located on the base portion 61a. The guide portion 61 b is provided in a protruding manner at a central portion in the Y direction on the upper surface of the base portion 61 a. The guide portion 61 b fits in the groove portion 11 a of the pallet 10.

  The elevating unit 62 is, for example, an air cylinder having a rod 62a. The rod 62a is connected to the bottom surface of the rail portion 61, and expands and contracts in the Z direction. When the rod 62a is contracted, the rail portion 61 is positioned beside the downstream end of the second rail 30, and the rail portion 61 and the second rail 30 become horizontal to each other. As a result, the pallet 10 can be moved from the downstream end of the second rail 30 to the rail portion 61. When the rod 62a is extended, the rail portion 61 is positioned beside the upstream end of the first rail 20, and the rail portion 61 and the first rail 20 become horizontal to each other. As a result, the pallet 10 can be moved from the rail portion 61 to the first rail 20.

  The horizontal movement unit 63 has a movement guide 63a extending in the Y direction. The horizontal movement unit 63 further includes a drive unit whose illustration is omitted. When the drive unit is driven, the elevation unit 62 horizontally moves in the Y direction along the movement guide 63a. Along with this, the rail portion 61 connected to the elevating portion 62 also moves horizontally in the Y direction.

  Subsequently, the detailed configuration of the pallet 10 will be described. On the lower side of the main body portion 11 in the pallet 10, a first meshing portion 12 in a state of being unitized into a plate shape is provided. More specifically, as shown in FIG. 3, the main body portion 11 is provided with a plate-like projecting portion 11 b projecting horizontally toward the toothed belt 41 side. The first meshing portion 12 is fixed to the lower surface of the projecting portion 11 b. The first meshing portion 12 has a plurality of convex portions arranged in parallel along the X direction.

  The first meshing portion 12 meshes with the toothed portion 42 of the toothed belt 41 when the pallet 10 is positioned on the first rail 20. More specifically, the protrusion 11 b is located above the toothed belt 41, and the first meshing portion 12 faces the tooth 42 in the Z direction. The respective convex portions of the first meshing portion 12 and the respective convex portions of the tooth portion 42 are alternately arranged in the X direction, and enter between the adjacent convex portions on the opposite side. In this state, when the toothed belt 41 rotates, the pallet 10 travels on the first rail 20 in synchronization with the engagement between the first meshing portion 12 and the tooth portion 42.

  In the pallet 10, on the upper side of the main body portion 11, a second meshing portion 13 in a state of being unitized into a plate shape is provided. In more detail, the 2nd meshing part 13 is being fixed to the upper surface of projection part 11b. The second meshing portion 13 has a plurality of convex portions arranged in parallel along the X direction.

  The second meshing portion 13 meshes with the toothed portion 42 of the toothed belt 41 when the pallet 10 is positioned on the second rail 30. More specifically, the protruding portion 11 b is located below the toothed belt 41, and the second meshing portion 13 faces the tooth portion 42 in the Z direction. The respective convex portions of the second meshing portion 13 and the respective convex portions of the tooth portion 42 are alternately arranged in the X direction, and enter between the adjacent convex portions on the opposite side. In this state, when the toothed belt 41 rotates, the pallet 10 travels on the second rail 30 in synchronization with meshing between the second meshing portion 13 and the tooth portion 42.

  The first meshing portion 12 and the second meshing portion 13 are assembled to the projection 11b by screwing, for example. Therefore, the first meshing portion 12 and the second meshing portion 13 can be removed from the protrusion 11 b by removing the screw. Thus, the first meshing portion 12 and the second meshing portion 13 are assembled to the main body portion 11.

  As shown in FIG. 6 and FIG. 7, the transport device 1 is used as a transport system 100 by combining a plurality of units. The conveying device 101 meshes with the first meshing portion 12 of the pallet 10 when the rail 101a extending horizontally from the downstream end of the first rail 20 of the conveying device 1 and the main body portion 11 of the pallet 10 are positioned on the rail 101a. And a toothed belt 101b. Thus, the pallet 10 can travel linearly from the first rail 20 of the transport device 1 to the rail 101 a of the transport device 101.

  The transport device 102 is configured such that the rail 102a disposed parallel to the rail 101a of the transport device 101 in the Y direction and the second meshing of the pallet 10 when the main body 11 of the pallet 10 is positioned on the rail 102a. And a toothed belt 102b meshing with the portion 13. Thus, the pallet 10 can travel from the first rail 20 of the transport device 1 to the rail 102 a of the transport device 102 while being transported in the Y direction by the first transport mechanism 50.

  Although not illustrated, there is a thickness inspection device disposed adjacent to the first rail 20 of the conveyance device 1 as a processing machine or inspection machine on the production line side corresponding to the conveyance system 100. Moreover, although not shown in figure as a processing machine or an inspection machine, there exists a thickness adjustment apparatus arrange | positioned adjacent to the rail 101a of the conveying apparatus 101, and inserting the thickness adjustment film of predetermined number of sheets in the workpiece W. Further, as a processing machine or inspection machine, although not shown, there is a transfer device which is disposed adjacent to the rail 102 a of the transfer device 102 and transfers the work W from the pallet 10 to the outside of the production line.

  Subsequently, the operation of the transport apparatus 1 alone will be described with reference to FIGS. 1, 2, 4 and 5. In the following description, the operation of the pallet 10 located on the upstream end side of the first rail 20 in FIG. 1 will be mainly described, and the other operation of the transport device 1 will be described in relation to the operation of the pallet 10 To go.

  In the pallet 10 positioned on the upstream end side of the first rail 20, the first meshing portion 12 meshes with the tooth portion 42 of the toothed belt 41. Therefore, as shown in FIG. 1, the pallet 10 travels on the first rail 20 toward the downstream end side of the first rail 20 by the drive of the toothed belt 41 of the drive mechanism 40, and the first transfer The rail portion 51 of the mechanism 50 is reached.

  The pallet 10 that has reached the rail portion 51 is returned to the upstream end side of the first rail 20. Specifically, as shown in FIG. 5, the horizontal movement unit 53 is driven to move in the Y direction away from the toothed belt 41. Thereby, the meshing between the first meshing portion 12 of the pallet 10 and the tooth portion 42 of the toothed belt 41 is released. Subsequently, as shown in FIG. 4, the pallet 10 is lowered to the height of the second rail 30 by the drive of the elevation unit 52, and thereafter, moved in the Y direction so as to approach the toothed belt 41 by the drive of the horizontal movement unit 53. Move to As a result, the second meshing portion 13 of the pallet 10 and the tooth portion 42 of the toothed belt 41 mesh with each other.

  Subsequently, as shown in FIG. 1, the pallet 10 located on the rail portion 51 travels on the second rail 30 toward the downstream end side of the second rail 30 by the drive of the toothed belt 41. 2 Reach the rail portion 61 of the transfer mechanism 60. The pallet 10 having reached the rail portion 61 moves in the Y direction away from the toothed belt 41 by the drive of the horizontal moving portion 63 as shown in FIG. Thereby, the meshing between the second meshing portion 13 of the pallet 10 and the tooth portion 42 of the toothed belt 41 is released. Subsequently, as shown in FIG. 4, the pallet 10 ascends to the height of the first rail 20 by the drive of the elevator unit 62, and then moves in the Y direction so as to approach the toothed belt 41 by the drive of the horizontal moving unit 63. Move to As a result, the first meshing portion 12 of the pallet 10 and the tooth portion 42 of the toothed belt 41 mesh with each other. The pallet 10 positioned in the rail portion 61 travels on the first rail 20 again toward the downstream end side of the first rail 20 by the drive of the toothed belt 41.

  Subsequently, with reference to FIGS. 6 and 7 again, the processing as the transfer system 100 will be described including the relation with the assembly process of the secondary battery. The assembly process of the laminated secondary battery includes, for example, a lamination process, a pressure process, a thickness inspection process, a thickness adjustment process, and the like. In the stacking step, a plurality of sheet-like positive and negative electrodes are stacked via a separator to form a stacked body. In the pressing step, a load is applied to the laminate in the stacking direction to perform air removal, close contact, and the like. In the thickness inspection step, the thickness of the laminate after pressing is measured, and the workpiece W exceeding the allowable range is determined as a defective product. In the thickness adjustment step, a thickness adjustment sheet is inserted into the non-defective work W in order to further bring the thickness closer to the reference value. Thereafter, the laminate is integrated with a tape to form an electrode assembly, and steps such as connection to electrode terminals and storage in a case are performed to assemble a laminated secondary battery.

  First, the workpiece W (laminated body) pressurized in the previous step is placed on the pallet 10 on the upstream end side of the first rail 20, and the pallet 10 travels on the first rail 20. The pallet 10 is temporarily stopped at a position corresponding to the thickness inspection apparatus, and the thickness of the workpiece W is inspected. Thereafter, the pallet 10 is transported to the downstream end of the first rail 20. If the workpiece W is determined to be non-defective as a result of the thickness inspection, the pallet 10 subsequently moves onto the rail 101a and travels linearly. The pallet 10 is temporarily stopped on the rail 101 a at a position corresponding to the thickness adjusting device, and the thickness adjusting sheet is inserted into the work W placed on the pallet 10. When the workpiece W is determined to be a defective product, the pallet 10 is transferred from the downstream end of the first rail 20 onto the rail 102 a. The pallet 10 traveling on the rail 102a is temporarily stopped at a position corresponding to the transfer device (not shown). Then, the workpiece W which is a defective product is removed from the production line by transferring the workpiece W from the pallet 10.

  A plurality of processing machines and inspection machines such as a thickness inspection device, a thickness adjustment device, and a transfer device may be disposed adjacent to the first rail 20. In this case, the pallet 10 is stopped several times for processing and inspection in the process of being transported on the first rail 20.

  As described above, when the pallet 10 is positioned on the first rail 20, in the transport device 1, the toothed portion 42 of the toothed belt 41 meshes with the first meshing portion 12 of the pallet 10, and the pallet 10 When positioned on the second rail 30, the toothed portion 42 of the toothed belt 41 meshes with the second meshing portion 13 of the pallet 10. Thereby, the pallet 10 can be made to travel along a plurality of rails (the first rail 20 and the second rail 30) by one toothed belt 41. Therefore, the pallet 10 can be circulated while reducing the number of parts.

  The teeth 42 are provided on the outer surface of the toothed belt 41. As a result, the pallet 10 is positioned outside the toothed belt 41. Therefore, transport of the pallet 10 to another transport device or the like is facilitated.

  Further, the first meshing portion 12 and the second meshing portion 13 are assembled to the main body portion 11 of the pallet 10. As a result, the first meshing portion 12 and the second meshing portion 13 do not have to be processed directly on the pallet 10, and cost reduction can be achieved.

  Also, for example, when a chain or the like is used instead of the toothed belt 41, it is necessary to stop driving the chain for a long time in order to remove the pallet 10 from the chain. However, in the conveyance device 1 of the present embodiment, since the pallet 10 can be easily removed from the toothed belt 41, there is no need to stop the driving of the toothed belt 41 or the driving of the toothed belt 41 can be performed. The stopping time can be made short.

Second Embodiment
A transport apparatus 1A according to the second embodiment will be described with reference to FIG. In the conveying device 1, the toothed portion 42 is provided on the outer surface of the toothed belt 41, but in the conveying device 1A, the toothed portion 42A is provided on the inner surface of the toothed belt 41A There is. The conveying device 1A is different from the conveying device 1 in this point.

  With the above difference, in the transport device 1A, the positions of the first meshing portion 12 and the second meshing portion 13 are vertically reversed. That is, the first meshing portion 12 is provided on the upper side of the main body portion 11 (upper surface side of the protruding portion 11b), and the second meshing portion 13 is arranged on the lower side of the main body portion 11 (lower surface side of the protruding portion 11b) It is provided. When the pallet 10 is positioned on the first rail 20, the first meshing portion 12 meshes with the toothed portion 42A of the toothed belt 41A, as in the case of the conveyance device 1. The second meshing portion 13 also meshes with the toothed portion 42A of the toothed belt 41A when the pallet 10 is positioned on the second rail 30 as in the case of the conveying device 1. Further, in the transfer device 1A, the first transfer mechanism 50A does not have the horizontal movement unit 53, and the second transfer mechanism 60A does not have the horizontal movement unit 63.

  As described above, in the conveyance device 1A, the tooth portion 42A is provided on the inner surface of the toothed belt 41A. Thereby, the pallet 10A is positioned inside the toothed belt 41A. Therefore, when transporting the pallet 10A between the first rail 20 and the second rail 30, the main body portion 11 and the toothed belt 41 and the belt 11 are simply moved up and down without being moved in the Y direction. Does not interfere. As described above, in the transfer device 1A, there is no need to move the pallet 10A in the Y direction, the transfer of the pallet 10A between the first rail 20 and the second rail 30 becomes easy, and the circulation of the pallet 10A is smoothly performed. can do.

  Further, in the transfer device 1A, as described above, when transporting the pallet 10A between the first rail 20 and the second rail 30, there is no need to move the pallet 10A in the Y direction, so the horizontal moving unit 53 Also, it is not necessary to provide the horizontal movement unit 63. Therefore, the first transfer mechanism 50A and the second transfer mechanism 60A can be configured simply.

  As mentioned above, although some embodiment of this invention was described, this invention is not limited to the said embodiment.

  For example, in the above embodiment, the first meshing portion 12 and the second meshing portion 13 are assembled to the main body portion 11 in a unitized state in a plate shape, but are integrally formed to the main body portion 11 by groove processing It may be done.

  Moreover, in the said embodiment, although conveyance apparatus 1 and 1A decided to be used at the assembly process of a secondary battery, it is not restricted to a secondary battery, You may be used by any production line.

  1, 1A: conveying device, 10, 10A: pallet, 11: main body portion, 12: first meshing portion, 13: second meshing portion, 20: first rail, 30: second rail, 40: drive mechanism, 41 41A: toothed belt 42, 42A: tooth portion 50, 50A: first transfer mechanism 60, 60A: second transfer mechanism W: work

Claims (2)

A transfer device for transferring a work,
A pallet on which the work is placed;
First and second rails disposed parallel to each other and guiding the pallet in the transport direction;
A drive mechanism for causing the pallet to travel along the first rail and the second rail;
A first transfer mechanism for transferring the pallet from the downstream end side of the first rail to the upstream end side of the second rail;
A second transfer mechanism for transferring the pallet from the downstream end side of the second rail to the upstream end side of the first rail;
The drive mechanism comprises an endless toothed belt having an annularly formed toothed portion,
The pallet is provided on the upper and lower sides of the main body with a main body having a groove fitted to the first rail and the second rail, and the teeth are disposed when the pallet is positioned on the first rail A first meshing portion meshing with the toothed portion of the belting belt, and a second meshing gear provided on the other upper and lower sides of the main body portion and meshing with the toothed portion of the toothed belt when the pallet is positioned on the second rail possess and meshing portion, the,
The conveying device , wherein the toothed portion is provided on an inner surface of the toothed belt . It said first engagement portion and the second engagement portion is assembled to the main body, according to claim 1 Symbol mounting conveying device.

Images