Reciprocating type logistics conveying cache line

Abstract

The utility model provides a reciprocating type logistics conveying temporary storage line. The reciprocating type logistics conveying temporary storage line comprises a first conveying line, a second conveying line and two sets of driving mechanisms. The first conveying line comprises an inlet end and a first station, a first sliding groove is formed in the first conveying line in the direction from the inlet end to the first station, and multiple sets of first rolling bodies are sequentially arranged in the first sliding groove; the second conveying line comprises an outlet end and a second station, a second sliding groove is formed in the second conveying line in the direction from the second station to the outlet end, multiple sets of second rolling bodies are sequentially arranged in the second sliding groove, and the first station and the second station are arranged adjacently; the driving mechanism comprises a guide rail, a translation driving part and a push-pull assembly, the push-pull assembly is slidably mounted on the guide rail, and the translation driving part is used for driving the push-pull assembly to move along the guide rail so as to push or pull the tray to move through the push-pull assembly; the two guide rails are arranged on the first conveying line and the second conveying line respectively. The reciprocating type logistics conveying cache line has the advantages of being simple in structure, low in failure rate and low in cost.

Description

Technical Field

[0001] The utility model relates to the technical field of production and transportation, in particular to a reciprocating logistics conveying buffer line. Background Art

[0002] Finished products of automobile parts production need to be placed in the buffer area, waiting to be taken to the designated location for shipment. Finished products are generally placed on pallets. Operators need to take out the finished products that have arrived at the workstation and return the empty pallets for collection. The existing logistics transportation method uses AGV (AGV: Automated Guided Vehicle) or unpowered tilting devices for parts with relatively small mass, and automatic plate chains and rollers are generally used for transportation for parts with relatively large mass. The use of AGV transportation or automatic plate chain transportation requires large investment, occupies a large area, has high cost and high failure rate; the unpowered tilting device has no limit, the collision noise of the pallets is large, and the long-term use will make it difficult for the pallets to slide, with a high failure rate and increased maintenance costs.

[0003] In view of this, it is necessary to provide a new reciprocating logistics transport cache line to solve or at least alleviate the above-mentioned technical defects. Utility Model Content

[0004] The main purpose of the utility model is to provide a reciprocating logistics conveying buffer line, aiming to solve the technical problems in the prior art of high cost and high failure rate of AGV conveying and automatic plate chain conveying, and high maintenance cost of unpowered tilting devices.

[0005] To achieve the above-mentioned purpose, the utility model provides a reciprocating logistics transport buffer line, comprising:

[0006] A first conveying line, comprising an inlet end and a first workstation, wherein a first chute is formed on the first conveying line along a direction from the inlet end to the first workstation, wherein a plurality of groups of first rolling bodies are sequentially arranged in the first chute;

[0007] A second conveying line includes an outlet end and a second workstation. A second chute is formed on the second conveying line along a direction from the second workstation to the outlet end. A plurality of groups of second rolling bodies are sequentially arranged in the second chute. The first workstation is adjacent to the second workstation.

[0008] Two sets of driving mechanisms, each of which includes a guide rail, a translational driving member and a push-pull assembly, the push-pull assembly can be slidably installed on the guide rail, and the translational driving member is used to drive the push-pull assembly to move along the guide rail so as to push or pull the tray to move through the push-pull assembly; wherein the two guide rails are respectively arranged on the first conveying line and the second conveying line.

[0009] In one embodiment, the push-pull assembly includes a mounting plate, a pulling member and a pushing member, the pulling member and the pushing member are relatively arranged at two ends of the mounting plate, the mounting plate is slidably connected to the guide rail, the translation drive member is installed on the mounting plate, a rack is provided on one side of the guide rail, and the output end of the translation drive member is engaged with the rack.

[0010] In one embodiment, the pulling member includes a first mounting portion, a first blocking block and a pulling block, the first mounting portion is connected to the mounting plate, the first mounting portion is formed with a first accommodating groove, the pulling block is hingedly mounted on the first accommodating groove, the top of the pulling block extends out of the first accommodating groove and is used to abut against the tray, the first blocking block is mounted on the first mounting portion, and when the pulling block drives the tray to move, the first blocking block abuts against the pulling block to prevent the pulling block from rotating.

[0011] In one embodiment, the pushing member includes a second mounting portion, a second blocking block and a pushing block, the second mounting portion is connected to the mounting plate, the second mounting portion is formed with a second accommodating groove, the pushing block is hingedly mounted on the second accommodating groove, the top of the pushing block extends out of the second accommodating groove and is used to abut against the tray, the second blocking block is mounted on the second mounting portion, and when the pushing block drives the tray to move, the second blocking block abuts against the pushing block to prevent the pushing block from rotating.

[0012] In one embodiment, the reciprocating logistics conveying buffer line also includes two groups of blockers, one of which is close to the first workstation and arranged in the first conveying line, used to block or allow the pallet to enter the first workstation; the other blocker is close to the exit end and arranged in the second conveying line, used to block or allow the pallet to enter the exit end.

[0013] In one embodiment, the blocker includes a fixed seat, a limit block and a limit driving member, the limit block is rotatably mounted on the fixed seat, the output end of the limit driving member is connected to the limit block, and the limit driving member is used to drive the limit block to rotate to block or release the pallet.

[0014] In one embodiment, the reciprocating logistics transport cache line includes two sets of lifting mechanisms, which are respectively arranged at the first workstation and the second workstation, and the lifting mechanisms are used to lift the tray.

[0015] In one embodiment, the lifting mechanism includes a lifting platform and multiple groups of lifting cylinders arranged at the bottom of the lifting platform; along the direction from the first workstation to the second workstation, multiple groups of third rolling bodies are sequentially arranged on each lifting platform.

[0016] In one embodiment, the first conveying line includes a plurality of sets of frames, and the plurality of sets of frames are sequentially spliced ​​from the inlet end to the first workstation.

[0017] In one embodiment, the first rolling body includes a bottom bearing and a side bearing, wherein the bottom bearing is used to support the tray from the bottom, and the side bearing is used to roll in contact with the tray from the side.

[0018] In the above scheme of the utility model, the pallet loaded with automobile parts enters the first slide groove from the entrance end and contacts the first rolling body. At the same time, the driving mechanism located in the first conveyor line pulls the pallet to move to the first station. When it moves close to the first station, the translation drive can drive the push-pull assembly to move to the left on the guide rail and disengage from the pallet, and continue to pull the pallets at other entrance ends to arrange them in sequence and temporarily cache them in the first conveyor line. After the pallet can enter the first station, for example, when the first station is already vacant, the translation drive can drive the push-pull assembly to pull or push the pallet at the back, so that all the pallets in the first conveyor line move to the right together, thereby driving the frontmost pallet to enter the first station, and the operator takes out the finished products in the pallet at this station for shipment, and then moves the empty pallet to the second station. In the same principle, the transportation principle of the empty pallet in the second conveyor line is similar to that of the first conveyor line, but in the opposite direction. The second conveyor line can also cache multiple empty pallets to achieve transportation and caching, and personnel can take away the empty pallet from the exit end. When the pallet moves in the first conveyor line and the second conveyor line, the friction and resistance in the moving process can be reduced by rotating the first roller or the second roller, respectively. Accordingly, the power of the driving member can be reduced, thereby reducing costs. Compared with AGV conveying or plate chain conveying, the setting of the rolling body and the push-pull assembly in the utility model simplifies the structure and reduces costs. Due to the simple structure, the failure rate is also low, and the footprint is small. Unlike traditional plate chain conveyor pallets, the driving mechanism of the utility model directly drives the pallet to move, rather than driving the plate chain to drive the pallet to move; compared with unpowered tilting device conveying, the utility model can avoid hard collisions between pallets by controlling the operation of the translation drive member, and has better controllability, lower failure rate, and reduced maintenance costs.

[0019] In summary, the utility model solves the problem of logistics transfer of empty and full pallets in the finished product buffer area of ​​automobile parts production, adopts a guide rail plus a rolling body to form a slideway, and realizes the movement of the pallet through an electric drive mode, which has the advantages of simple structure, low failure rate and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of a reciprocating logistics transport buffer line according to an embodiment of the utility model;

[0022] Figure 2 for Figure 1 A schematic diagram of the three-dimensional structure of the translation drive member and the push-pull assembly in the first conveyor line;

[0023] Figure 3 for Figure 1 A schematic diagram of the three-dimensional structure of the blocker and the lifting mechanism in the first conveying line;

[0024] Figure 4 for Figure 3 A schematic diagram of the three-dimensional structure of the first rolling element;

[0025] Figure 5 A top view of a reciprocating logistics transport buffer line according to an embodiment of the utility model;

[0026] Figure 6 It is a side view of the reciprocating logistics transport cache line according to an embodiment of the utility model.

[0027] Description of labels:

[0028]

[0029]

[0030] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with the implementation methods and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the implementation mode of the utility model are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0033] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two groups, such as two groups, three, etc., unless otherwise clearly and specifically defined.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two groups of components or the interaction relationship between two groups of components, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] Furthermore, the technical solutions between the various implementation modes of the present invention may be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in the field. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0036] Please refer to Figure 1 to Figure 5 The utility model provides a reciprocating logistics conveying buffer line, including a first conveying line 1, a second conveying line 2 and two sets of driving mechanisms 3; the first conveying line 1 includes an inlet end 11 and a first station 12, and along the direction from the inlet end 11 to the first station 12, the first conveying line 1 forms a first chute 13, and a plurality of first rolling bodies 14 are sequentially arranged in the first chute 13; the second conveying line 2 includes an outlet end 21 and a second station 22, and along the direction from the second station 22 to the outlet end 21, the second conveying line 2 forms A second slide groove 23, in which multiple groups of second rolling bodies 24 are arranged in sequence, the first station 12 is adjacent to the second station 22; each driving mechanism 3 includes a guide rail 31, a translation driving member 32 and a push-pull assembly 33, the push-pull assembly 33 can be slidably installed on the guide rail 31, and the translation driving member 32 is used to drive the push-pull assembly 33 to move along the guide rail 31, so as to push or pull the tray to move through the push-pull assembly 33; wherein, the two guide rails 31 are respectively arranged on the first conveyor line 1 and the second conveyor line 2.

[0037] In the above embodiment, the pallet loaded with automobile parts enters the first slide groove 13 from the entrance end 11 and contacts the first rolling body 14. At the same time, the driving mechanism 3 located on the first conveyor line 1 pulls the pallet to move toward the first station 12 (move to the right). When it moves close to the first station 12, the translation driving member 32 can drive the push-pull assembly 33 to move to the left on the guide rail 31 and disengage from the pallet, and continue to pull the pallets of other entrance ends 11 to arrange them in sequence and temporarily cache them in the first conveyor line 1. After the pallet can enter the first station 12, for example, when the first station 12 is already empty, the translation driving member 32 can pull or push the pallet at the back by driving the push-pull assembly 33, so that all the pallets in the first conveyor line 1 move to the right together, thereby driving the frontmost pallet to enter the first station 12, and the operator takes out the finished products in the pallet for shipment at this station, and then moves the empty pallet to the second station 22. The same principle applies. The transportation principle of the empty pallet in the second conveyor line 2 is similar to that of the first conveyor line 1, but in the opposite direction. The second conveyor line 2 can also cache multiple empty pallets to achieve transportation and caching. Personnel can take away the empty pallet from the exit end 21. When the pallet moves in the first conveyor line 1 and the second conveyor line 2, the friction and resistance of the moving process can be reduced by rotating the first rolling body 14 or the second rolling body 24, respectively. Accordingly, the power of the driving member can be reduced to reduce the cost. Compared with AGV conveying or plate chain conveying, the setting of the rolling body and the push-pull assembly 33 in this embodiment simplifies the structure and reduces the cost. Due to the simple structure, the failure rate is also low and the floor space is small. Different from the traditional plate chain conveying pallet, the driving mechanism 3 of this embodiment directly drives the pallet to move, rather than driving the plate chain, thereby driving the pallet to move; compared with the unpowered tilting device conveying, this embodiment can avoid the hard collision between pallets by controlling the operation of the translation driving member 32, which has better controllability, lower failure rate and reduced maintenance cost.

[0038] In summary, this embodiment solves the problem of logistics transfer of empty and full pallets in the finished product buffer area of ​​automobile parts production. It adopts a guide rail 31 plus a rolling body to form a slideway, and realizes the movement of the pallet through an electric drive mode. It has the advantages of simple structure, low failure rate and low cost.

[0039] Combined with reference Figure 1 and Figure 2In one embodiment, the push-pull assembly 33 includes a mounting plate 331, a pulling member 332 and a pushing member 333. The pulling member 332 and the pushing member 333 are arranged at two ends of the mounting plate 331, and the mounting plate 331 is slidably connected to the guide rail 31. The translation drive member 32 is installed on the mounting plate 331. A rack is arranged on one side of the guide rail 31, and the output end of the translation drive member 32 is meshed with the rack. In the first conveyor line 1, the pulling member 332 is located on the left side of the mounting plate 331, and the pushing member 333 is located on the right side of the mounting plate 331, so as to hook the pallet from the inlet end 11 and pull the pallet to move, and push the pallet into the first station 12; in the second conveyor, the pulling member 332 is located on the right side of the mounting plate 331, and the pushing member 333 is located on the left side of the mounting plate 331, so as to hook the pallet from the second station 22 and pull the pallet to move, and push the pallet into the outlet end 21. Specifically, the translation drive member 32 may include a motor and a transmission gear. The motor drives the transmission gear to rotate. The transmission gear serves as an output end and engages with the rack to drive the translation drive member 32 and the push-pull assembly 33 to move. The pallet is transported to the designated area through the work of the motor, with low noise, low cost and simple operation.

[0040] Specifically, the pulling member 332 includes a first mounting portion 3321, a first blocking block 3322 and a pulling block 3323. The first mounting portion 3321 is connected to the mounting plate 331. The first mounting portion 3321 is formed with a first receiving slot 3324. The pulling block 3323 is hingedly mounted on the first receiving slot 3324. The top of the pulling block 3323 extends out of the first receiving slot 3324 and is used to abut against the tray. The first blocking block 3322 is mounted on the first mounting portion 3321. When the pulling block 3323 drives the tray to move, the first blocking block 3322 abuts against the pulling block 3323 to prevent the pulling block 3323 from rotating. The pulling block 3323 can remain in a vertical state under the action of gravity. Figure 2 In the state shown, the crossbeam of the tray can press over the pulling block 3323 and squeeze the pulling block 3323 to rotate clockwise, and then the pulling block 3323 returns to the vertical state, and the right side of the pulling block 3323 is used to abut against the crossbeam. When the tray is driven to move to the right, the first blocking block 3322 under the first mounting portion 3321 blocks the pulling block 3323 from rotating counterclockwise, thereby realizing force transmission.

[0041] In the same principle, in one embodiment, the push member 333 includes a second mounting portion 3331, a second blocking block 3332 and a push block 3333. The second mounting portion 3331 is connected to the mounting plate 331. The second mounting portion 3331 is formed with a second receiving groove 3334. The push block 3333 is hingedly mounted on the second receiving groove 3334. The top of the push block 3333 extends out of the second receiving groove 3334 and is used to abut against the tray. The second blocking block 3332 is mounted on the second mounting portion 3331. When the push block 3333 drives the tray to move, the second blocking block 3332 abuts against the push block 3333 to block the push block 3333 from rotating. The action principle of the push member 333 can refer to the pulling member 332, which will not be repeated here. When the above-mentioned crossbeam passes through the pulling block 3323, it can also press the push block 3333. The push block 3333 pushes the tray from the left side of the tray to the right. The entire push-pull mechanism will not interfere with the tray, nor will it drive the tray to move in the reverse direction.

[0042] Combined with reference Figure 1 and Figure 3 In one embodiment, the reciprocating logistics conveying buffer line further includes two groups of blockers 4, one blocker 4 is close to the first station 12 and is arranged in the first conveying line 1, and is used to block or release the pallet from entering the first station 12; the other blocker 4 is close to the outlet 21 and is arranged in the second conveying line 2, and is used to block or release the pallet from entering the outlet 21. The setting of the blocker 4 can ensure that the pallet can be moved to the first station 12 or the outlet 21 only when needed, and avoid the interference of the pallets caused by misoperation.

[0043] Specifically, the blocker 4 includes a fixed seat 41, a limit block 42 and a limit driver 43. The limit block 42 is rotatably mounted on the fixed seat 41. The output end of the limit driver 43 is connected to the limit block 42. The limit driver 43 is used to drive the limit block 42 to rotate to block or release the pallet. The limit driver 43 can be a cylinder. When the cylinder drives the limit block 42 to rotate to a vertical state, it can play a blocking role. The angle of the cylinder itself can also rotate.

[0044] Combined with reference Figure 1 and Figure 3 In one embodiment, the reciprocating logistics conveying cache line includes two sets of lifting mechanisms 5, which are respectively arranged at the first station 12 and the second station 22, and the lifting mechanisms 5 are used to lift the pallet. The lifting mechanism 5 located at the first station 12 can lift the pallet out of the first chute 13, lift the pallet to position, and facilitate the operator to pick up the goods and directly push the empty pallet into the lifting mechanism 5 of the second station 22. After the lifting mechanism 5 of the second station 22 receives the pallet and descends, the pallet can be stably entered into the second chute 23.

[0045] Combined with reference Figure 1 and Figure 3 In one embodiment, the lifting mechanism 5 includes a lifting platform 51 and a plurality of lifting cylinders 52 arranged at the bottom of the lifting platform 51; along the direction from the first station 12 to the second station 22, a plurality of third rolling bodies 511 are sequentially arranged on each lifting platform 51. The arrangement of the third rolling bodies 511 facilitates the operator to push the pallet forward and backward, making the operation more labor-saving. Specifically, the blocker 4 in the first conveyor line 1 can be linked with the lifting mechanism 5, and the pallet stops when it reaches the blocker 4. When the operation at the lifting mechanism 5 is completed, the blocker 4 will be released.

[0046] Combined with reference Figure 1 and Figure 6 In one embodiment, the first conveyor line 1 includes a plurality of frames 10, which are sequentially spliced ​​from the inlet end 11 to the first station 12. The segmented frame 10 can adjust the number of chutes according to the actual logistics buffering needs, which has the advantage of high flexibility. The second conveyor line 2 is similar.

[0047] Combined with reference Figure 1 , Figure 3 and Figure 4 In one embodiment, the first rolling body 14 includes a bottom bearing 141 and a side bearing 142. The bottom bearing 141 is used to support the tray from the bottom, and the side bearing 142 is used to roll with the tray from the side. The side bearings 142 and the bottom bearing 141 not only reduce the friction force well, but also limit the tray from the side, so that the tray can move smoothly along a straight line. The bearings at the lower part and sides of both sides of the frame 10 greatly reduce the friction force in the direction of travel of the tray, and the motor outputs a very small driving force to achieve the movement of the tray. The structure of the second rolling body 24 is the same as that of the first rolling body 14, and will not be repeated here.

[0048] The above are only preferred embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A reciprocating logistics transport buffer line, characterized in that: include: A first conveying line, comprising an inlet end and a first workstation, wherein a first chute is formed on the first conveying line along a direction from the inlet end to the first workstation, wherein a plurality of groups of first rolling bodies are sequentially arranged in the first chute; A second conveying line includes an outlet end and a second workstation. A second chute is formed on the second conveying line along a direction from the second workstation to the outlet end. A plurality of groups of second rolling bodies are sequentially arranged in the second chute. The first workstation is adjacent to the second workstation. Two sets of driving mechanisms, each of which includes a guide rail, a translational driving member and a push-pull assembly, the push-pull assembly can be slidably installed on the guide rail, and the translational driving member is used to drive the push-pull assembly to move along the guide rail so as to push or pull the tray to move through the push-pull assembly; wherein the two guide rails are respectively arranged on the first conveying line and the second conveying line.

2. The reciprocating logistics transport buffer line according to claim 1, characterized in that: The push-pull assembly includes a mounting plate, a pulling member and a pushing member, wherein the pulling member and the pushing member are arranged at two ends of the mounting plate opposite to each other, the mounting plate is slidably connected to the guide rail, the translation drive member is installed on the mounting plate, a rack is arranged on one side of the guide rail, and the output end of the translation drive member is meshed with the rack.

3. The reciprocating logistics transport buffer line according to claim 2, characterized in that: The pulling member includes a first mounting portion, a first blocking block and a pulling block, the first mounting portion is connected to the mounting plate, the first mounting portion is formed with a first accommodating groove, the pulling block is hingedly mounted on the first accommodating groove, the top of the pulling block extends out of the first accommodating groove and is used to abut against the tray, the first blocking block is mounted on the first mounting portion, and when the pulling block drives the tray to move, the first blocking block abuts against the pulling block to prevent the pulling block from rotating.

4. The reciprocating logistics transport buffer line according to claim 2, characterized in that: The pushing member includes a second mounting portion, a second blocking block and a pushing block, the second mounting portion is connected to the mounting plate, the second mounting portion is formed with a second accommodating groove, the pushing block is hingedly mounted on the second accommodating groove, the top of the pushing block extends out of the second accommodating groove and is used to abut against the tray, the second blocking block is mounted on the second mounting portion, and when the pushing block drives the tray to move, the second blocking block abuts against the pushing block to prevent the pushing block from rotating.

5. The reciprocating logistics transport buffer line according to any one of claims 1 to 4, characterized in that: The reciprocating logistics conveying buffer line also includes two groups of blockers, one of which is close to the first workstation and arranged in the first conveying line, used to block or allow pallets to enter the first workstation; the other blocker is close to the exit end and arranged in the second conveying line, used to block or allow pallets to enter the exit end.

6. The reciprocating logistics transport buffer line according to claim 5, characterized in that: The blocker includes a fixed seat, a limit block and a limit driving member. The limit block is rotatably mounted on the fixed seat, the output end of the limit driving member is connected to the limit block, and the limit driving member is used to drive the limit block to rotate to block or release the pallet.

7. The reciprocating logistics transport buffer line according to any one of claims 1 to 4, characterized in that: The reciprocating logistics conveying cache line includes two sets of lifting mechanisms, which are respectively arranged at the first workstation and the second workstation, and the lifting mechanisms are used to lift the pallet.

8. The reciprocating logistics transport buffer line according to claim 7, characterized in that: The lifting mechanism includes a lifting platform and multiple groups of lifting cylinders arranged at the bottom of the lifting platform; along the direction from the first workstation to the second workstation, multiple groups of third rolling bodies are sequentially arranged on each lifting platform.

9. The reciprocating logistics transport buffer line according to any one of claims 1 to 4, characterized in that: The first conveying line includes a plurality of groups of frames, and the plurality of groups of frames are sequentially spliced ​​from the inlet end to the first workstation.

10. The reciprocating logistics transport buffer line according to any one of claims 1 to 4, characterized in that: The first rolling body includes a bottom bearing and a side bearing, wherein the bottom bearing is used to support the tray from the bottom, and the side bearing is used to roll in contact with the tray from the side.

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