A multi-layer reflow mechanism for battery cell tray

Abstract

The present invention discloses a multi-layer reflow mechanism for battery cell trays, which relates to the field of battery manufacturing. The multi-layer reflow mechanism includes a conveying assembly having at least two layers for reflowing and transporting battery cell trays; a lifting and reflow assembly, which is arranged on one side of the conveying assembly and is used to lift and lower the battery cell trays; a lifting and transferring assembly, which is arranged on the conveying assembly and is used to receive the battery cell tray on the lifting and reflow assembly and place the battery cell tray on the conveying assembly; and a shifting assembly, which is arranged on one side of the lifting and reflow assembly and is used to shift the battery cell tray on the lifting and reflow assembly onto the lifting and transferring assembly. The multi-layer reflow mechanism of the present application can realize automatic handling of battery cell trays of different heights, and has a compact structural design, which not only reduces the space occupied by the multi-layer reflow mechanism, but also improves the reflow efficiency of the battery cell tray, which is beneficial to cost control of product production.

Description

Technical Field

[0001] The present invention relates to the technical field of battery manufacturing, and in particular to a multi-layer reflow mechanism for a battery cell tray. Background Art

[0002] As battery market demand continues to grow, end-use markets are placing increasingly stringent demands on battery quality. This necessitates increased investment in battery safety testing technology before shipment to ensure product quality and safety. Improving battery testing efficiency requires automated conveying of battery cells. However, the current design of the reflow mechanism for battery cell trays is loose, resulting in large space requirements and low handling efficiency.

[0003] Therefore, the existing technology still needs to be improved and developed. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a multi-layer reflow mechanism for a battery tray in response to the above-mentioned defects of the prior art, aiming to solve the problems of the existing battery tray reflow mechanism having a large structural space occupation and low upper and lower layer handling efficiency.

[0005] This application provides a multi-layer reflow mechanism for a battery tray, which adopts the following technical solutions:

[0006] A multi-layer reflow mechanism for a battery tray, comprising:

[0007] A conveyor assembly having at least two layers for reflow transport of battery cell trays;

[0008] A lifting and reflow assembly, which is arranged on one side of the conveying assembly and is used to lift the battery cell tray;

[0009] A lifting and transferring assembly is provided on the conveying assembly, and is used to receive the cell tray on the lifting and reflow assembly and place the cell tray on the conveying assembly;

[0010] A toggle assembly is provided on one side of the lifting and reflow assembly and is used to toggle the cell tray on the lifting and reflow assembly onto the lifting and transferring assembly.

[0011] Furthermore, the conveying assembly includes a double-speed chain conveying line body and an upper conveying line body. The double-speed chain conveying line body is used to convey the battery cell tray to the lifting and reflow assembly, and the lifting and reflow assembly transports the battery cell tray to the same horizontal height of the upper conveying line body.

[0012] Furthermore, the lifting and reflow assembly includes a frame body, a conveying assembly arranged on the frame body for conveying the battery cell tray, and a driving assembly for driving the conveying assembly to convey the battery cell tray, and the conveying assembly conveys the battery cell tray in a vertical direction.

[0013] Furthermore, a jig guide assembly is also provided on the conveying assembly; the jig guide assembly includes a guide bar and a guide wheel, the guide bar is arranged perpendicular to the conveying assembly, the guide wheel is arranged on the guide bar, and the guide wheel is used to support and guide the battery cell tray.

[0014] Furthermore, the driving assembly includes an active assembly, a driven assembly and a synchronous assembly;

[0015] The active component includes a lifting motor and a driving wheel, the driving wheel is in transmission connection with the transmission component, and the lifting motor is used to drive the driving wheel to drive the transmission component;

[0016] The synchronization assembly includes a first synchronization wheel, a second synchronization wheel, a transmission wheel and a synchronization belt. The first synchronization wheel is fixedly connected to the driving wheel. The belt is respectively connected to the first synchronization wheel and the second synchronization wheel. The transmission wheel is fixedly connected to the second synchronization wheel.

[0017] The driven assembly includes a driven wheel, the driven wheel is gear-connected to the transmission wheel, and the driven wheel is transmission-connected to the transmission assembly.

[0018] Furthermore, the jacking and transferring assembly includes a jacking panel, a jacking cavity and a jacking motor. The jacking panel is fixedly connected to the upper conveying line body, the jacking motor is arranged at the bottom of the jacking panel, the jacking cavity is connected to the jacking motor, the jacking cavity is used to receive the battery cell tray, and the jacking motor is used to drive the jacking cavity to move up and down.

[0019] Furthermore, a guide rod is provided between the lifting cavity and the lifting panel. The guide rod is provided at the bottom of the lifting cavity and is slidably connected to the lifting panel.

[0020] Furthermore, a fixing part is provided on the upper conveying line body, and the fixing part is used to fix the battery cell tray after the lifting cavity is lowered.

[0021] Furthermore, the lifting and transferring assembly further includes: load-bearing wheels, which are arranged on both sides of the lifting cavity, and the height of the load-bearing wheels is higher than the height of the lifting cavity, and the load-bearing wheels are used to receive the battery cell tray.

[0022] Furthermore, the toggle assembly includes a toggle plate, a toggle motor and a connecting plate;

[0023] The connecting plate is slidingly arranged on one side of the lifting and reflow assembly, the toggle plate is slidingly connected to the connecting plate in the vertical direction, the toggle motor is arranged on the connecting plate, the toggle motor is connected to the toggle plate, and the toggle motor is used to drive the toggle plate to move in the vertical direction along the connecting plate.

[0024] Beneficial effects of the present invention: The present application places the battery cell tray to be inspected on the conveying assembly for conveying, the conveying assembly conveys the battery cell tray to be inspected to the lifting and reflow assembly, and then the lifting and reflow assembly transports the battery cell tray to be inspected to a conveying assembly at another height, and the shifting assembly shifts the battery cell tray to be inspected on the lifting and reflow assembly to the jacking and transferring assembly, which is first taken over by the jacking and transferring assembly. After the jacking and transferring assembly moves down, the battery cell tray to be inspected is fixed on the conveying assembly, and finally conveyed by the conveying assembly to the place to be inspected for inspection, thereby realizing a multi-layer automatic conveying process of the battery cell tray. The multi-layer reflow mechanism of the present application has a compact structural design, which not only reduces the occupied space of the multi-layer reflow mechanism, but also improves the reflow efficiency of the battery cell tray, is beneficial to the cost control of product production, and effectively improves the problems existing in the existing reflow mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is an overall structural diagram of the upper and lower layer reflow mechanisms for a battery cell tray provided by an embodiment of the present invention.

[0026] Figure 2 It is a structural principle diagram of the lifting and reflowing assembly provided by an embodiment of the present invention.

[0027] Figure 3 It is a structural principle diagram of the jacking and transferring assembly provided by an embodiment of the present invention.

[0028] Figure 4 It is a structural principle diagram of the toggle assembly provided by an embodiment of the present invention.

[0029] Description of the drawings: 1. Conveying assembly; 11. Double-speed chain conveying line; 12. Upper conveying line; 121. Fixing member; 2. Lifting and reflowing assembly; 21. Frame; 22. Conveying assembly; 23. Driving assembly; 231. Active assembly; 2311. Lifting motor; 2312. Active wheel; 232. Driven assembly; 233. Synchronous assembly; 2331. First synchronous wheel; 2332. Second synchronous wheel; 2333. Transmission assembly; Driving wheel; 2334, synchronous belt; 24, fixture guide assembly; 241, guide bar; 242, guide wheel; 3, jacking and transferring assembly; 31, jacking panel; 32, jacking cavity; 33, jacking motor; 34, guide rod; 35, load-bearing wheel; 36, in-position sensor; 4, toggle assembly; 41, toggle plate; 42, toggle motor; 43, connecting plate; 44, slider; 45, slide rail; 5, workbench; 6, bracket. DETAILED DESCRIPTION

[0030] The present invention discloses a multi-layer reflow mechanism for a battery cell tray. To clarify the objectives, technical solutions, and effects of the present invention, the present invention is further described below with reference to the accompanying drawings and examples. It should be understood that the specific examples described herein are intended only to illustrate the present invention and are not intended to limit the present invention.

[0031] like Figure 1 As shown, the embodiment of the present application discloses a multi-layer reflow mechanism for a battery tray, which is used to realize the reflow transportation of the battery tray. The reflow mechanism is set on a workbench 5, and the battery tray is placed with battery cells to be tested. The next operation after the reflow process is to test the battery cells to determine whether they meet the product use requirements. The reflow mechanism includes:

[0032] Conveying component 1, lifting and reflow component 2, jacking and transferring component 3 and shifting component 4, wherein the conveying component 1 has at least two layers for reflow transport of battery cell trays; the lifting and reflow component 2 is arranged on one side of the conveying component 1, for lifting and reflowing battery cell trays to transport the battery cell trays from one horizontal height to another horizontal height. It can be understood that the conveying component 1 is provided with at least two layers, so the conveying components 1 on different layers have different heights, and the lifting and reflow component 2 can transport the battery cell trays to conveying components 1 at different heights; the shifting component 4 is arranged on one side of the lifting and reflow component 2, for shifting the battery cell tray on the lifting and reflow component 2 to the lifting and transferring component 3, and the lifting and transferring component 3 is arranged on the conveying component 1 at another horizontal height, for receiving the battery cell tray on the lifting and reflow component 2 and placing the battery cell tray on the conveying component 1.

[0033] During the specific implementation, the battery cell tray to be inspected is placed on the conveying component 1 for transportation, and the conveying component 1 transports the battery cell tray to be inspected to the lifting and reflow component 2, and then the lifting and reflow component 2 transports the battery cell tray to be inspected to the conveying component 1 at another height, and the shifting component 4 shifts the battery cell tray to be inspected on the lifting and reflow component 2 to the jacking and transferring component 3, which is first taken over by the jacking and transferring component 3. After the jacking and transferring component 3 moves down, the battery cell tray to be inspected is fixed on the conveying component 1, and finally transported by the conveying component 1 to the place to be inspected for inspection, thereby realizing the multi-layer automatic conveying process of the battery cell tray. The multi-layer reflow mechanism of the present application has a compact structural design, which not only reduces the occupied space of the multi-layer reflow mechanism, but also improves the reflow efficiency of the battery cell tray, is beneficial to the cost control of product production, and effectively improves the problems existing in the existing reflow mechanism.

[0034] In some embodiments, the conveying assembly 1 includes a double-speed chain conveyor line 11 and an upper conveyor line 12. In this application, the height of the upper conveyor line 12 is higher than the height of the double-speed chain conveyor line 11. The double-speed chain conveyor line 11 is used to quickly convey the battery cell pallet to the lifting and reflow assembly 2. It should be noted that the length of the double-speed chain conveyor line 11 extends to the position of the lifting and reflow assembly, so that the double-speed chain conveyor line 11 directly transports the battery cell pallet to the lifting and reflow assembly 2, which is lifted and lowered by the lifting and reflow assembly 2 without the need for additional operations, thereby improving transportation efficiency, and has a simple structure and guaranteed costs. The lifting and reflow component 2 transports the battery cell pallet at the same level as the double-speed chain conveyor line 11 to the same level as the upper conveyor line 12, thereby realizing the transportation of battery cell pallets at different heights. The upper conveyor line 12 fixes the battery cell pallet at the same time after receiving it to ensure the stability of transportation, and then transports it to the battery inspection point for inspection at a uniform speed, thereby improving the transportation efficiency and stability while further ensuring the inspection effect of the product.

[0035] In some embodiments, as Figure 2As shown, the lifting and reflow assembly 2 includes a frame body 21, a conveying assembly 22 provided on the frame body 21 for conveying the battery cell tray, and a driving assembly 23 for driving the conveying assembly 22 to convey. The conveying assembly 22 conveys the battery cell tray in the vertical direction. Specifically, the conveying assembly 22 can adopt a conveyor belt or the like. The conveying assembly 22 is provided in two groups to carry out vertical transportation of the horizontally placed battery cell trays. Each group of conveying assemblies 22 includes two conveying units arranged side by side, that is, the two conveying units are arranged on the same side of the frame body 21. A number of evenly distributed jig guide assemblies 24 are also provided on the conveying assembly 22. The jig guide assemblies 24 are used to support and guide the battery cell tray in the horizontal direction so that the conveying assembly 22 can convey the battery cell tray and improve the stability of the battery cell tray transmission. It should be noted that the length of the double-speed chain conveyor line extends between the two groups of conveying components, so that the battery cell pallet can be directly conveyed between the two groups of conveying components 22, and then the battery cell pallet on the double-speed chain conveyor line 11 is supported by the jig guide component 24, and under the action of the conveying component 22, the battery cell pallet is conveyed vertically. It can be understood that the width of the battery cell pallet is greater than the width of the double-speed chain conveyor line 11, and also greater than the width between the two groups of the jig guide components 24, and the width between the two groups of the jig guide components 24 is greater than the width of the double-speed chain conveyor line 11, so that the double-speed chain conveyor line 11 conveys the battery cell pallet to between the two groups of conveying components 22, and the conveying component 22 can directly convey the battery cell pallet to the next step without the use of additional components for pushing, thereby improving transmission efficiency and saving production costs, which is beneficial to the production and manufacturing of the enterprise. It can be understood that an in-place sensor can be used to detect whether the battery cell pallet is in place to ensure the realization of an automated conveying process. The conveying component 22 can convey the battery cell tray to any height. In the present application, the conveying component 22 moves the battery cell tray to a position at the same level as the upper conveying line 12 so as to transfer the battery cell tray to the upper conveying line 12 for reflow.

[0036] In some embodiments, the jig guide assembly 24 includes a guide bar 241 and a guide wheel 242. The guide bar 241 is connected to the conveying assembly 22, that is, the guide bar 241 is connected between the two conveying units, which is more cost-effective than an integrated conveying assembly. The guide bar 241 and the conveying assembly 22 are arranged perpendicular to each other, that is, the guide bar 241 is arranged horizontally on the conveying assembly 22, and the guide wheel 242 is fixed on the guide bar 241. The guide wheel 242 is used to support and guide the battery cell tray so that the conveying assembly 22 can convey the battery cell tray vertically. During specific implementation, initially, the battery cell tray to be inspected is located on the speed chain conveyor line 11. When the in-position sensor senses that the battery cell tray is in position, the conveying component is driven, and the guide wheel 242 located on the conveying component 22 supports the battery cell tray. The battery cell tray leaves the speed chain conveyor line 11, and then, under the action of the conveying component, the battery cell tray is vertically conveyed to the height of the upper conveyor line 12, thereby realizing the up and down transportation of the battery cell tray. Compared with the use of strip plates for support, the present application uses the guide wheel 242 as a supporting carrier, which not only ensures the load stability, but also reduces the contact surface between the battery cell tray and the supporting carrier, thereby reducing the friction between the battery cell tray and the supporting carrier, so that when the shifting component 4 shifts the battery cell tray to the lifting and transferring component 3, the wear of the battery cell tray is reduced.

[0037] In some embodiments, the driving assembly 23 includes a driving assembly 231, a driven assembly 232, and a synchronization assembly 233. The driving assembly 231 drives the transmission assembly 22 and simultaneously drives the synchronization assembly 233 to rotate. The synchronization assembly 233 drives the driven assembly 232 to rotate. The driven assembly 232 further drives the transmission assembly 22 on the other side of the frame body 21 to transmit, thereby achieving synchronous transmission of the transmission assemblies 22 located on both sides of the frame body 21. Specifically, the driving assembly 231 includes a lifting motor 2311 and a driving wheel 2312. The lifting motor 2311 is fixedly disposed on one side of the frame body 21. The driving wheel 2312 is connected to the lifting motor 2311. The driving wheel 2312 is also in transmission connection with the transmission assembly 22. Therefore, the lifting motor 2311 drives the driving wheel 2312 to rotate and drives the transmission assembly 22. The two transmission units located on the same side achieve synchronous transmission through the driving wheel 2312, that is, the two driving wheels 2312 of the two transmission units are fixedly connected.

[0038] In some embodiments, the synchronization component 233 includes a first synchronization wheel 2331, a second synchronization wheel 2332, a transmission wheel 2333 and a synchronization belt 2334, the first synchronization wheel 2331 is fixedly connected to the driving wheel 2312, the belt is respectively connected to the first synchronization wheel 2331 and the second synchronization wheel 2332, and the second synchronization wheel 2332 is fixedly connected to the transmission wheel 2333; the driven component 232 includes a driven wheel, the transmission wheel 2333 is connected to the driven wheel gear, and the driven wheel is connected to the transmission component 22 on the other side. During specific implementation, after the transmission component 22 is started, the driving wheel 2312 drives the first driven wheel to rotate, and then under the action of the synchronous belt 2334, the second synchronous wheel 2332 and the transmission wheel 2333 rotate, thereby driving the driven wheel connected to the gear of the transmission wheel 2333 to rotate, further making the transmission component 22 on the other side synchronously driven, so that the two groups of transmission components 22 are synchronously driven to realize the synchronous transportation of the battery cell tray, which not only ensures the transportability of the battery cell tray, but also improves the transportation stability, reduces the number of motors used, and further reduces the electricity cost, which is beneficial to the company's production and manufacturing, and also makes the overall structural design of the reflux mechanism of the present application compact, reducing the occupied space.

[0039] In some embodiments, as Figure 3 As shown, a bracket 6 is fixedly mounted on the workbench 5, and the toggle assembly 4 includes a toggle plate 41, a toggle motor 42, and a connecting plate 43. The connecting plate 43 is slidably connected to the bracket 6 and can slide horizontally along the bracket 6, that is, the connecting plate 43 can move toward or away from the lifting and reflow assembly 2. It can be understood that a driving member is provided on the bracket 6 to drive the connecting plate 43 to slide horizontally along the bracket 6.

[0040] The toggle motor 42 is fixedly mounted on the connecting plate 43. The toggle plate 41 is connected to the toggle motor 42. The toggle motor 42 is used to drive the toggle plate 41 to slide up and down along the connecting plate 43 in the vertical direction. In addition, a slider 44 is provided on one side of the toggle plate 41. A slide rail 45 is provided on the side of the connecting plate 43 opposite to the toggle plate 41. The slider 44 slides along the slide rail 45, thereby improving the stability of the up and down sliding of the toggle plate 41. In a specific implementation, the driving member drives the connecting plate 43 to move back and forth to adjust the distance between the toggle plate 41 and the lifting and reflow assembly 2 to an appropriate distance. At the same time, the toggle motor 42 drives the toggle plate 41 to slide up and down to adjust the height of the toggle plate 41 so that the bottom of the toggle plate 41 and the battery cell tray on the lifting and reflow assembly 2 are on the same horizontal plane.

[0041] During the specific implementation, the height of the toggle plate 41 is first adjusted upward or downward by the toggle motor 42, so that the bottom end surface of the toggle plate 41 is at the same height as the battery cell tray carried by the lifting and reflow assembly, and then the connecting plate 43 slides on the bracket 6 to drive the toggle plate 41 to move toward the lifting and reflow assembly, so as to shift the battery cell tray carried by the lifting and reflow assembly 2 to the jacking and transferring assembly 3, and then the jacking and transferring assembly 3 places the battery cell tray on the upper conveyor line 12, thereby completing the upper and lower layer transportation of the battery cell tray.

[0042] In some embodiments, as Figure 4 As shown, the lifting and transferring assembly 3 includes a lifting panel 31, a lifting cavity 32 and a lifting motor 33. The lifting panel 31 is fixedly connected to the upper conveying line body 12. The lifting motor 33 is arranged on the bottom surface of the lifting panel 31. The lifting cavity 32 is connected to the lifting motor 33. The lifting motor 33 is used to drive the lifting cavity 32 to rise or fall to complete the operation of receiving the battery cell tray and placing the battery cell tray on the upper conveying line body 12. In addition, by providing the lifting and transferring assembly 3, the battery cell tray is first moved from the lifting and returning assembly 2 to the lifting and transferring assembly 3, and then moved from the lifting and transferring assembly 3 to the upper conveying line body 12 for fixation. As an intermediate transfer, it not only ensures that the battery cell tray is stably received, but also further ensures that the battery cell tray is stably fixed on the upper conveying line body 12, thereby ensuring the normal operation of the battery cell tray's return transportation process and the stability of the return transportation process.

[0043] In some embodiments, a guide rod 34 is further provided between the lifting cavity 32 and the lifting panel 31. The conveying guide rod 34 is fixedly arranged at the bottom of the conveying lifting cavity 32. At the same time, the guide rod 34 is slidingly connected to the lifting panel 31. Therefore, in the process of the lifting motor 33 driving the lifting cavity 32 to move up and down, the guide rod 34 also slides up and down on the lifting panel 31, thereby improving the stability of the up and down movement of the lifting cavity 32 and further ensuring the stability of the battery cell tray being transferred.

[0044] In some embodiments, the lifting and transferring assembly 3 further includes: load-bearing wheels 35, which are arranged on both sides of the lifting cavity 32, and the height of the load-bearing wheels 35 is higher than the top surface height of the lifting cavity 32, so as to receive the battery tray. In specific implementation, the load-bearing wheels 35 have similar functions to the guide wheels 242 mentioned above, and can not only support the battery tray, so that the shifting assembly 4 can smoothly shift the battery tray to the lifting and transferring assembly 3, but also, compared with directly using a strip plate for support, the present application uses the guide wheels 242 as the supporting carrier to ensure the load stability, and also reduce the contact surface between the battery tray and the supporting carrier, thereby reducing the friction between the battery tray and the supporting carrier, so that when the load-bearing wheels 35 receive the battery tray on the lifting and transferring assembly 3, the wear of the battery tray can be further reduced, thereby improving the detection effect of the product. In addition, a number of in-position sensors are provided in the mechanism to cooperate with the reflow automation process, such as the in-position sensors 36 located on both sides of the lifting and transferring assembly. When the in-position sensors sense that a battery cell tray is in place, the upper conveyor line 12 starts conveying.

[0045] Specifically, if Figure 3 and Figure 4 As shown, a fixing part 121 is also provided on the upper conveyor line 12, and the fixing part is used to fix the battery cell tray when the jacking cavity 32 descends. When the jacking cavity 32 descends, the battery cell tray to be inspected lacks a receiving carrier and falls directly onto the upper conveyor line 12. If it is not protected, it may cause unstable transmission problems and even damage the battery cell tray, affecting the inspection results of the product. Therefore, the present application fixes the four corners of the battery cell tray by setting evenly distributed fixing parts on the upper conveyor line 12, thereby ensuring the placement and transmission stability of the battery cell tray and further ensuring the inspection effect of the battery cell product. Specifically, the fixing part 121 is a fixed protrusion, and the top of the fixed protrusion is provided with a chamfer to facilitate the battery cell tray to fall onto the upper conveyor line 12. For the double-speed chain return line and the upper conveyor line 12, it is a relatively common material conveying method, and its specific structure is not repeated here.

[0046] Compared with the prior art, the present invention has the following advantages:

[0047] The present invention places the battery cell tray to be inspected on the conveying component 1 for conveying, and the conveying component 1 conveys the battery cell tray to be inspected to the lifting and reflow component 2, and then the lifting and reflow component 2 transports the battery cell tray to be inspected to the conveying component 1 at another height, and the shifting component 4 shifts the battery cell tray to be inspected on the lifting and reflow component 2 to the jacking and transferring component 3, which is first taken over by the jacking and transferring component 3. After the jacking and transferring component 3 moves down, the battery cell tray to be inspected is fixed on the conveying component 1, and finally conveyed by the conveying component 1 to the place to be inspected for inspection, thereby realizing the multi-layer automatic conveying process of the battery cell tray. The multi-layer reflow mechanism of the present application has a compact structural design, which not only reduces the occupied space of the multi-layer reflow mechanism, but also improves the reflow efficiency of the battery cell tray, is beneficial to the cost control of product production, and effectively improves the problems existing in the existing reflow mechanism.

[0048] It should be understood that the application of the present invention is not limited to the above examples. For those skilled in the art, improvements or changes can be made based on the above description. All these improvements and changes should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A multi-layer reflow mechanism for a battery tray, wherein the battery tray is provided with battery cells to be inspected, characterized in that: include: A conveyor assembly having at least two layers for reflow transport of battery cell trays; A lifting and reflow assembly, which is arranged on one side of the conveying assembly and is used to lift the battery cell tray; A lifting and transferring assembly is provided on the conveying assembly, and is used to receive the cell tray on the lifting and reflow assembly and place the cell tray on the conveying assembly; The driving member drives the connecting plate to move forward and backward to adjust the distance between the toggle plate and the lifting and reflow assembly, and the toggle motor drives the toggle plate to slide up and down to adjust the height of the toggle plate; a slider is provided on one side of the toggle plate, and a slide rail is provided on the side opposite to the connecting plate, and the slider slides along the slide rail.

2. The multi-layer reflow mechanism for a battery tray according to claim 1, characterized in that: The conveying assembly includes a double-speed chain conveying line body and an upper conveying line body. The double-speed chain conveying line body is used to convey the battery cell tray to the lifting and reflow assembly, and the lifting and reflow assembly transports the battery cell tray to the same horizontal height as the upper conveying line body.

3. The multi-layer reflow mechanism for a battery tray according to claim 2, characterized in that: The lifting and reflow assembly includes a frame body, a conveying assembly arranged on the frame body for conveying the battery cell tray, and a driving assembly for driving the conveying assembly to convey the battery cell tray. The conveying assembly conveys the battery cell tray in a vertical direction.

4. The multi-layer reflow mechanism for a battery tray according to claim 3, characterized in that: The conveying assembly is also provided with a jig guide assembly; the jig guide assembly includes a guide bar and a guide wheel, the guide bar is arranged perpendicular to the conveying assembly, the guide wheel is arranged on the guide bar, and the guide wheel is used to support and guide the battery cell tray.

5. The multi-layer reflow mechanism for a battery tray according to claim 4, characterized in that: The driving assembly includes an active assembly, a driven assembly and a synchronous assembly; The active component includes a lifting motor and a driving wheel, the driving wheel is in transmission connection with the transmission component, and the lifting motor is used to drive the driving wheel to drive the transmission component; The synchronization assembly includes a first synchronization wheel, a second synchronization wheel, a transmission wheel and a synchronization belt. The first synchronization wheel is fixedly connected to the driving wheel. The belt is respectively connected to the first synchronization wheel and the second synchronization wheel. The transmission wheel is fixedly connected to the second synchronization wheel. The driven assembly includes a driven wheel, the driven wheel is gear-connected to the transmission wheel, and the driven wheel is transmission-connected to the transmission assembly.

6. The multi-layer reflow mechanism for a battery tray according to claim 5, characterized in that: The jacking and transferring assembly includes a jacking panel, a jacking cavity and a jacking motor. The jacking panel is fixedly connected to the upper conveyor line body. The jacking motor is arranged at the bottom of the jacking panel. The jacking cavity is connected to the jacking motor. The jacking cavity is used to receive the battery cell tray, and the jacking motor is used to drive the jacking cavity to move up and down.

7. The multi-layer reflow mechanism for a battery tray according to claim 6, characterized in that: A guide rod is further provided between the lifting cavity and the lifting panel. The guide rod is provided at the bottom of the lifting cavity and is slidably connected to the lifting panel.

8. The multi-layer reflow mechanism for a battery tray according to claim 7, characterized in that: The upper conveying line body is provided with a fixing piece, and the fixing piece is used to fix the battery cell tray after the jacking cavity is lowered.

9. The multi-layer reflow mechanism for a battery tray according to claim 8, characterized in that: The lifting and transferring assembly further includes: load-bearing wheels, which are arranged on both sides of the lifting cavity, and the height of the load-bearing wheels is higher than the height of the lifting cavity, and the load-bearing wheels are used to receive the battery cell tray.

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