A lithium battery manufacturing reflow transportation mechanism

Abstract

The utility model provides a kind of lithium battery manufacturing reflow transport mechanism, belong to lithium battery production technical field.A kind of lithium battery manufacturing reflow transport mechanism, including main unit, reflow conveying unit, battery cell conveying unit, isolation unit and unloading unit;Main unit includes supporting leg and lifting platform;Reflow conveying unit includes reflow conveyor belt and power carrier roller;Battery cell conveying unit includes conveying conveyor belt and power pulley.The utility model is in lithium battery automation production line, and the material flow of battery cell automation integration degree is significantly enhanced.Reflow conveyor belt upper conveying space is isolated by isolation unit and is divided into several right-angle U-shaped reflow channels, by adjusting reflow conveyor belt width and increasing or decreasing the number of isolation plate, the number of reflow channel can be quickly adjusted.Further, adapt to capacity change.Two transmission belts with opposite moving directions are power isolated, and battery cell carrier in the whole transport system does not need to wait, high-speed conveying can be realized, and production rhythm is greatly enhanced.

Description

Technical Field

[0001] This utility model belongs to the field of lithium battery production technology, specifically relating to a lithium battery manufacturing return transport mechanism. Background Technology

[0002] In current mainstream automated lithium battery production lines, the material flow of battery cells generally suffers from a key technical bottleneck, which severely restricts further improvement in production line efficiency. The core of this bottleneck is that the widely adopted single-line operation mode that drives cups, trays, or carriers can no longer meet the needs of modern high-speed and flexible manufacturing, and its inherent mechanical complexity causes multiple problems for production operation and equipment maintenance.

[0003] From the perspective of conveying efficiency and speed, the single assembly line + carrier cup model has inherent shortcomings. This model typically consists of a continuous chain or belt conveyor running through multiple processes, with all carrier cups fixed on it and moving at the same speed. This results in the logistics system having to wait at workstations where high-speed loading / unloading and inspection could be completed quickly, making high-speed short-distance conveying impossible. The slow movement of battery cells between unnecessary workstations causes a significant waste of time and limits the breakthrough of the overall production cycle time. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a lithium battery manufacturing return transport mechanism to address the low transport efficiency of the existing single production line + drag cup technology.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A lithium battery manufacturing return transport mechanism includes a main unit, a return transport unit, a cell transport unit, an isolation unit, and an unloading unit. The main unit includes support legs and a lifting platform. The return transport unit includes a return conveyor belt and a powered idler roller. The cell transport unit includes a conveyor belt and a powered pulley. The powered idler roller and the powered pulley are fixedly mounted at one end of the lifting platform. The return conveyor belt and the conveyor belt are supported and lifted by the lifting platform and are respectively connected to the powered idler roller and the powered pulley via a transmission connection. The powered idler roller and the powered pulley rotate in opposite directions. The isolation unit is fixedly connected to the lifting platform, with a gap set above the return conveyor belt, dividing the conveying space above the return conveyor belt into several right-angled U-shaped return channels; several battery cell carriers are arranged in the return channels; several first cylinders and second cylinders are respectively arranged at the first and second ends of the lifting platform; the first cylinders and second cylinders are respectively used to push the battery cell carriers at the outlet of the return channel toward the conveyor belt, and to push the battery cell carriers on the conveyor belt toward the inlet of the return channel; a material unloading unit for transferring the battery cells carried by the battery cell carriers is fixedly arranged on the isolation unit.

[0006] Furthermore, the isolation unit includes a support plate, an isolation plate, and a termination baffle; there are two termination baffles, each fixedly connected to both ends of the lifting platform; the termination baffles span the return conveyor belt and the conveyor belt, with a gap between them; several parallel support plates span the return conveyor belt vertically and are fixedly installed on the lifting platform; several isolation plates are fixed below the support plates, with a gap between them and the return conveyor belt to form a return channel; the isolation plate at the outlet of the return channel does not cross the conveyor belt and is fixed on the lifting platform; the isolation plate at the inlet of the return channel crosses the conveyor belt and is fixed on the lifting platform; the isolation plate above the conveyor belt has a through groove opening from bottom to top.

[0007] Furthermore, a receiving groove is provided extending in a straight line in the opposite direction to the outlet of the return channel; a reinforcing connector that is fixedly connected to the lifting platform is fixedly provided above the receiving groove.

[0008] Furthermore, the lifting platform has a first fixing plate and a second fixing plate respectively arranged opposite to each other at its front and rear ends; each first cylinder is fixedly mounted on the first fixing plate for each return channel outlet; a limiting groove that cooperates with the reinforcing connector is opened at the lower part of the power output end of the first cylinder; each second cylinder is fixedly mounted on the second fixing plate for each return channel inlet.

[0009] Furthermore, the unloading unit includes a displacement cylinder and a U-shaped push frame; the power output end of the displacement cylinder is fixedly connected to the rear of the U-shaped push frame; the two sides of the U-shaped structure of the U-shaped push frame are parallel to the lifting platform, and an arc-shaped notch that cooperates with the battery cell to be transferred is provided through it.

[0010] Furthermore, magnetic suction cylinders are fixed on both sides of the rear of the U-shaped push frame; the power output end of the magnetic suction cylinder passes through the U-shaped push frame and is fixedly connected to an electromagnet.

[0011] Furthermore, a limit cylinder is provided on the outside of the U-shaped push frame located on the downward side of the conveyor belt; the limit cylinder is fixedly mounted on the third fixed plate protruding from the outside of the lifting platform; and a limit block is fixedly connected to the power output end of the limit cylinder.

[0012] Furthermore, the battery cell carrier has a cuboid structure; the surface of the battery cell carrier that contacts the conveyor belt is a square with the same width as the isolation plate; grooves are provided on its four sides; and magnets are fixedly installed inside the battery cell carrier.

[0013] Preferably, a displacement sensor is installed above the conveyor belt before the inlet of the return channel.

[0014] Preferably, both the return conveyor belt and the conveyor belt have weak magnetic attraction surfaces.

[0015] Compared with existing technologies, this invention significantly enhances the automation integration of cell material flow in lithium battery automated production lines. The conveying space above the return conveyor belt is divided into several right-angled U-shaped return channels by an isolation unit. By adjusting the width of the return conveyor belt and increasing or decreasing the number of isolation plates, the number of return channels can be quickly adjusted. Synchronous action of a cylinder array enables the transfer, transport, return, and reset of cell carriers on the two conveyor belts, thus adapting to changes in production capacity. By dynamically isolating the two conveyor belts moving in opposite directions, the return of cell carriers in the entire transportation system does not require waiting, enabling high-speed transport, greatly increasing production cycle time, and improving production efficiency. Attached Figure Description

[0016] The present invention will now be described in further detail with reference to the accompanying drawings.

[0017] Figure 1 : A three-dimensional structural schematic diagram of an embodiment of this utility model; Figure 2 : A top view of the structure of this utility model embodiment; Figure 3 One of the cross-sectional structural diagrams of this utility model embodiment; Figure 4 : A second schematic diagram of the cross-sectional structure of an embodiment of this utility model; Figure 5 : A three-dimensional structural diagram of the lifting platform of this utility model after the first cylinder is removed from the front end; Figure 6 : A three-dimensional structural diagram of the lifting platform of this utility model after removing the first cylinder and the reinforcing connecting parts at the front end; Figure 7 This utility model embodiment is illustrated by an arrow indicating the direction of movement of the battery cell carrier. Figure 8 : Schematic diagram of the structure of the limiting cylinder of this utility model; Figure 9 : A three-dimensional structural diagram of the unloading unit of this utility model; Figure 10 : Schematic diagram of the first cylinder structure of this utility model; Figure 11 : Schematic diagram of the reinforced connector structure of this utility model; Figure 12 : Schematic diagram of the battery cell carrier structure of this utility model; Among them, 1-main body unit, 11-support leg, 12-lifting platform, 13-first fixed plate, 14-second fixed plate, 15-third fixed plate, 16-displacement sensor, 2-return conveyor unit, 21-return conveyor belt, 22-powered idler roller, 23-drive motor, 3-cell conveyor unit, 31-conveyor belt, 32-powered pulley, 33-servo motor, 4-isolation unit, 41-support plate, 42-isolation plate 43-Termination baffle, 44-Return channel, 45-First cylinder, 450-Limiting groove, 46-Second cylinder, 47-Passing groove, 48-Accommodation groove, 49-Reinforcing connector, 5-Unloading unit, 51-Shifting cylinder, 52-U-shaped push frame, 53-Arc-shaped notch, 54-Magnetic suction cylinder, 55-Electromagnet, 56-Limiting cylinder, 57-Limiting block, 6-Cell carrier, 61-Groove, 62-Magnet. Detailed Implementation

[0018] To better understand this utility model, the following embodiments further illustrate its content, but the scope of protection of this utility model is not limited to the embodiments described below. Numerous specific details are set forth in the following description to provide a more thorough understanding of this utility model. However, it will be apparent to those skilled in the art that this utility model can be practiced without one or more of these details.

[0019] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0020] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0021] Example 1, see Figure 1-12 ; A lithium battery manufacturing return transport mechanism includes a main unit 1, a return transport unit 2, a cell transport unit 3, an isolation unit 4, and an unloading unit 5. The main unit 1 includes support legs 11 and a lifting platform 12. The return transport unit 2 includes a return conveyor belt 21 and a powered idler roller 22. The cell transport unit 3 includes a conveyor belt 31 and a powered pulley 32. The powered idler roller 22 and the powered pulley 32 are fixedly mounted at one end of the lifting platform 12. The return conveyor belt 21 and the conveyor belt 31 are supported and lifted by the lifting platform 12 and are respectively connected to the powered idler roller 22 and the powered pulley 32 via transmission. The powered idler roller 22 and the powered pulley 32 rotate in opposite directions. The powered idler roller 22 is poweredly connected to a drive motor 23. The powered pulley 32 is poweredly connected to a servo motor 33. This effectively isolates the two conveyor belts moving in opposite directions, laying the foundation for return transport. Both the return conveyor belt 21 and the conveyor belt 31 have weak magnetic attraction surfaces, which can attract each other with the battery cell carrier 6. When the battery cell carrier 6 is carrying the battery cell, it can maintain the stability of the transportation process and realize the flexible adsorption between the battery cell carrier 6 and the conveyor belt during the operation phase. During the empty return process of the battery cell carrier 6, it can maintain its property of moving smoothly with the conveyor belt, and when the battery cell carrier 6 is blocked, it can remain in a stopped state relative to the conveyor belt.

[0022] The isolation unit 4 includes a support plate 41, an isolation plate 42, and a termination baffle 43. The isolation unit 4 is fixedly connected to the lifting platform 12, forming a rigid connection topology with the transverse and longitudinal isolation plates 42 through the support plate 41, termination baffle 43, and gaps above the return conveyor belt 21, dividing the conveying space above the return conveyor belt 21 into several right-angled U-shaped return channels 44. By adjusting the width of the return conveyor belt 21 and increasing or decreasing the number of isolation plates 42, the number of return channels 44 can be quickly adjusted to adapt to changes in production capacity.

[0023] The return channel 44 is equipped with several battery cell carriers 6; the lifting platform 12 is equipped with several first cylinders 45 and second cylinders 46 at its head and tail, respectively; the first cylinders 45 and second cylinders 46 are used to push the battery cell carriers 6 at the outlet of the return channel 44 toward the conveyor belt 31, and to push the battery cell carriers 6 on the conveyor belt 31 toward the inlet of the return channel 44, thereby forming a return circulation of the battery cell carriers 6. An unloading unit 5 for transferring the battery cells carried by the battery cell carriers 6 is fixedly installed above the isolation unit 4.

[0024] The drive motor 23 drives the return conveyor belt 21 to rotate at a constant speed. Several second cylinders 46 at the outlet of the return channel 44 simultaneously push the battery cell carriers 6 inside each return channel 44 onto the conveyor belt 31. At this time, the conveyor belt 31 driven by the servo motor 33 stops moving. After the external mechanism transfers the battery cells to be transferred onto the battery cell carriers 6 that have just been pushed onto the conveyor belt 31, the second cylinders 46 retract. The conveyor belt 31 driven by the servo motor 33 starts moving again. The battery cell carriers 6 carry the battery cells along the conveyor belt 31 to the unloading unit 5. The unloading unit 5 transfers the battery cells carried by the battery cell carriers 6 out of the conveyor belt 31. The remaining battery cell carriers 6 continue to follow the conveyor belt 31 until they reach the end baffle 43. They are then pushed into the inlet of the return channel 44 by the first cylinder 45 and gradually transported by the return conveyor belt 21 to the outlet of the return channel 44, waiting for the second cylinder 46 to push them out again.

[0025] There are two termination baffles 43, each fixedly connected to both ends of the lifting platform 12. The termination baffles 12 span the return conveyor belt 21 and the conveyor belt 31, with a gap between them. The rigid anchoring at both ends of the termination baffles 12 and their suspended arrangement across the gap between the conveyor belts not only establishes the physical boundaries at both ends of the return system but also effectively suppresses the slight relative vibration coupling during the reverse operation of the two belts, further maintaining the smooth operation of the conveyor belts. Several parallel support plates 41 are perpendicularly spanned across the return conveyor belt 21 and fixedly mounted on the lifting platform 12. Several isolation plates 42 are fixed below the support plates 41, with a gap between them and the return conveyor belt 21 to form a return channel 44. The isolation plates 42 at the outlet of the return channel 44 do not cross the conveyor belt 31 and are fixed on the lifting platform 12. The isolation plates 42 at the inlet of the return channel 44 cross the conveyor belt 31 and are fixed on the lifting platform 12.

[0026] The isolation plate 42 above the conveyor belt 31 has a passage groove 47 formed from bottom to top to accommodate the movement of the battery cell carrier 6. The passage groove 47 is machined from bottom to top, and its width is in clearance fit with the width of the battery cell carrier 6. Its depth extends through 2 / 3 of the total thickness of the isolation plate 42, forming a semi-closed guide cavity, so that the battery cell carrier 6 can pass through the isolation plate 42 that spans the conveyor belt.

[0027] Furthermore, a receiving groove 48 is provided extending in a straight line in the opposite direction to the outlet of the return channel 44; a reinforcing connector 49, which is fixedly connected to the lifting platform 12, is fixedly provided above the receiving groove 48. A first fixing plate 13 and a second fixing plate 14 are respectively provided opposite to each other on the front and rear sides of the lifting platform 12; each first cylinder 45 is fixedly provided on the first fixing plate 13 corresponding to the outlet of each return channel 44; a limiting groove 450 is provided at the lower part of the power output end of the first cylinder 45, which cooperates with the reinforcing connector 49; each second cylinder 46 is fixedly provided on the second fixing plate 14 corresponding to the inlet of each return channel 44. The limiting groove 450 provided at the power output end of the first cylinder 45 cooperates with the reinforcing connector 49 above the receiving groove 48 to achieve a sliding limiting connection. When the power output end of the first cylinder 45 is not working, it retracts into the receiving groove 48, which will not obstruct the normal movement of the battery cell carrier 6 inside the return channel 44. The complete retraction in the non-working state avoids the risk of interference to the vehicle's operation caused by the external cylinder pusher protruding from the passage space. At the same time, the reinforced connector 49 enhances the structural strength and also forms an additional fulcrum for the power output end of the first cylinder 45.

[0028] The unloading unit 5 includes a shifting cylinder 51 and a U-shaped push frame 52. The power output end of the shifting cylinder 51 is fixedly connected to the rear of the U-shaped push frame 52. The two sides of the U-shaped structure of the U-shaped push frame 52 are parallel to the lifting platform 12, ensuring that the force direction of the battery cell is strictly horizontal during the pushing process, avoiding the problem of the battery cell falling due to tilting of the traditional push rod. The two sides of the U-shaped structure of the U-shaped push frame 52 are provided with arc-shaped notches 53 that match the battery cell to be transferred. The arc-shaped notches 53 are precisely machined according to the outline of the battery cell, effectively preventing scratches and plastic deformation on the surface of the aluminum-plastic film shell or steel shell. Magnetic suction cylinders 54 are fixedly fixed on the rear two sides of the U-shaped push frame 52. The power output end of the magnetic suction cylinder 54 passes through the U-shaped push frame 52 and is fixedly connected to an electromagnet 55.

[0029] Furthermore, a limiting cylinder 56 is installed on the outside of the U-shaped push frame 52 located on the downward side of the conveyor belt 31; the limiting cylinder 56 is fixedly mounted on the third fixed plate 15 protruding from the outside of the lifting platform 12; the power output end of the limiting cylinder 56 is fixedly connected to a limiting block 57. By driving the limiting block 57 through the limiting cylinder 56, the battery cell carriers 6 carrying the battery cells on the conveyor belt 31 can be blocked, reducing the distance between the battery cell carriers 6, so that the battery cell carriers 6 carrying the battery cells gather in front of the U-shaped push frame 52, increasing the working efficiency of the U-shaped push frame 52.

[0030] When the U-shaped push frame 52 transfers the battery cell, the displacement cylinder 51 actuates, driving the U-shaped push frame 52 to move. The arc-shaped notch 53 on the U-shaped push frame 52 fits against the cylindrical surface of the battery cell to form a semi-enclosed structure. Subsequently, the magnetic attraction cylinder 54 actuates, driving the electromagnet 55 to approach the battery cell. The electromagnet 55 is energized and generates an attraction force on the battery cell. After the battery cell is handed over to the external mechanism, the U-shaped push frame 52 remains stationary, the electromagnet 55 is de-energized, and the magnetic attraction cylinder 54 actuates again, driving the electromagnet 55 away from the battery cell. Then, the U-shaped push frame 52 is reset under the action of the displacement cylinder 51. By switching the electromagnet 55 on and off, the magnetic attraction of the battery cell is quickly and firmly achieved, and the weak magnetic attraction of the electromagnet 55 due to the hysteresis effect after the power is turned off is eliminated, thus eliminating the influence of the weak magnetic attraction of the electromagnet 55 on the stability of the battery cell transfer process.

[0031] Furthermore, the battery cell carrier 6 has a cuboid structure; the surface of the battery cell carrier 6 that contacts the conveyor belt 31 is a square with the same width as the isolation plate 42, and grooves 61 are formed on its four sides; a magnet 62 is fixedly installed inside the battery cell carrier 6 to provide an attractive force for the battery cell and the conveyor belt. Utilizing the equal-length side characteristic of the square, the battery cell carrier 6 does not need to distinguish direction when transferring bidirectionally between the return channel 44 and the conveyor belt 31. The design of the grooves 61 reduces friction between the battery cell carrier 6 and its surroundings during movement, while providing airflow clearance, further improving the stability of movement.

[0032] Preferably, a displacement sensor 16 is installed above the conveyor belt 31 before the entrance of the return channel 44. This sensor monitors the stopping status of the battery cell carrier 6 on the conveyor belt, thereby determining the timing for sending a simultaneous push signal to the second cylinder 46. This ensures a reasonable allocation of the number of battery cell carriers 6 entering each different return channel 44. After the battery cells in the battery cell carrier 6 are transferred on the conveyor belt 31, the remaining battery cell carriers 6 continue to move along the conveyor belt 31 until they are blocked by the stop baffle 43. They then gather above the conveyor belt 31 and maintain relative frictional movement until the length of the gathered battery cell carriers 6 covers the entrances of all return channels 44. At this point, the displacement sensor 16 at the corresponding position senses that the position of the battery cell carrier 6 is no longer changing and sends a push signal to the second cylinder 46. Several second cylinders 46 simultaneously push one battery cell carrier 6 into the return channel 44 and then reset, thus completing the reasonable allocation of the number of battery cell carriers 6 entering each different return channel.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A lithium battery manufacturing return transport mechanism, characterized in that: The system includes a main unit, a return conveying unit, a cell conveying unit, an isolation unit, and an unloading unit. The main unit includes support legs and a lifting platform. The return conveying unit includes a return conveyor belt and powered idlers. The cell conveying unit includes a conveyor belt and powered pulleys. The powered idlers and powered pulleys are fixedly mounted at one end of the lifting platform. The return conveyor belt and the conveyor belt are supported and lifted by the lifting platform and are respectively connected to the powered idlers and powered pulleys via transmission. The powered idlers and powered pulleys rotate in opposite directions. The isolation unit is connected to the... The lifting platform is fixedly connected, with gaps set above the return conveyor belt, dividing the conveying space above the return conveyor belt into several right-angled U-shaped return channels; several battery cell carriers are arranged in the return channels; several first cylinders and second cylinders are respectively arranged at the first and second ends of the lifting platform; the first cylinders and second cylinders are respectively used to push the battery cell carriers at the outlet of the return channel toward the conveyor belt, and to push the battery cell carriers on the conveyor belt toward the inlet of the return channel; a material unloading unit for transferring the battery cells carried by the battery cell carriers is fixedly arranged on the isolation unit.

2. The lithium battery manufacturing return transport mechanism according to claim 1, characterized in that: The isolation unit includes a support plate, an isolation plate, and a termination baffle; there are two termination baffles, each fixedly connected to both ends of the lifting platform; the termination baffles span the return conveyor belt and the conveyor belt, with a gap between them; several parallel support plates span the return conveyor belt vertically and are fixedly installed on the lifting platform; several isolation plates are fixed below the support plates, with a gap between them and the return conveyor belt to form a return channel; the isolation plate at the outlet of the return channel does not cross the conveyor belt and is fixed on the lifting platform; the isolation plate at the inlet of the return channel crosses the conveyor belt and is fixed on the lifting platform; the isolation plate above the conveyor belt has a through groove opening from bottom to top.

3. The lithium battery manufacturing return transport mechanism according to claim 2, characterized in that: A receiving groove is provided extending in a straight line in the opposite direction to the outlet of the return channel; a reinforcing connector that is fixedly connected to the lifting platform is fixedly provided above the receiving groove.

4. The lithium battery manufacturing return transport mechanism according to claim 3, characterized in that: The lifting platform has a first fixing plate and a second fixing plate respectively arranged opposite to each other at its front and rear ends; each first cylinder is fixedly mounted on the first fixing plate for each return channel outlet; the lower part of the power output end of the first cylinder is provided with a limiting groove that cooperates with the reinforcing connector; each second cylinder is fixedly mounted on the second fixing plate for each return channel inlet.

5. The lithium battery manufacturing return transport mechanism according to claim 1, characterized in that: The unloading unit includes a displacement cylinder and a U-shaped push frame; the power output end of the displacement cylinder is fixedly connected to the rear of the U-shaped push frame; the two sides of the U-shaped structure of the U-shaped push frame are parallel to the lifting platform, and an arc-shaped notch that cooperates with the battery cell to be transferred is opened through it.

6. The lithium battery manufacturing return transport mechanism according to claim 5, characterized in that: Magnetic suction cylinders are fixed on both sides of the rear of the U-shaped push frame; the power output end of the magnetic suction cylinder passes through the U-shaped push frame and is fixedly connected to an electromagnet.

7. A lithium battery manufacturing return transport mechanism according to claim 6, characterized in that: A limit cylinder is installed on the outside of the U-shaped push frame located on the downward side of the conveyor belt; the limit cylinder is fixedly installed on the third fixed plate protruding from the outside of the lifting platform; a limit block is fixedly connected to the power output end of the limit cylinder.

8. A lithium battery manufacturing return transport mechanism according to claim 1, characterized in that: The battery cell carrier has a cuboid structure; the surface of the battery cell carrier that contacts the conveyor belt is square, and grooves are provided on its four sides; a magnet is fixedly installed inside the battery cell carrier.

9. A lithium battery manufacturing return transport mechanism according to claim 1, characterized in that: A displacement sensor is installed above the conveyor belt in front of the return channel inlet.

10. A lithium battery manufacturing return transport mechanism according to claim 1, characterized in that: Both the return conveyor belt and the conveyor belt have weak magnetic attraction surfaces.

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