An annular flow line for production of an electric core

Abstract

The application relates to the field of battery processing, and provides a ring-shaped flow transfer line for battery cell production, which comprises a first conveying line, a second conveying line, a third conveying line, a first lane-changing device, a second lane-changing device and a third lane-changing device; the first conveying line, the second conveying line and the third conveying line can all conduct directional conveying of material cups along respective extension directions; the first lane-changing device is used for conducting split conveying of the material cups on the first conveying line; the second lane-changing device guides the material cups supporting the battery cells to move from the second conveying line to the third conveying line; the third lane-changing device guides the empty material cups on the third conveying line to flow back to the first conveying line, and controls the backflow of the empty material cups on the first conveying line. The ring-shaped flow transfer line for battery cell production can guide the material cups with battery cells to automatically move to the next battery cell work station, and can realize automatic backflow of the empty material cups, so that the effect of efficiently transferring the battery cells between two battery cell work stations is achieved.

Description

A toroidal transfer line for battery cell production Technical Field

[0001] This invention relates to the field of battery processing, and more particularly to a circular transfer line for battery cell production. Background Technology

[0002] With the development of new energy technologies, power batteries are widely used in new energy transportation vehicles such as electric bicycles and electric vehicles. Among them, lithium-ion batteries are widely used in the field of power batteries due to their high energy density, superior cycle performance, and wide operating range.

[0003] In the battery processing, the cell flattening station, cell coating station, cell current collector welding station, cell capping station, and cell sealing welding station are usually set up sequentially along a straight cell conveyor line.

[0004] In practical applications, it has been found that existing cell conveyor lines are only suitable for transferring horizontally arranged cells between two adjacent cell workstations. However, when transferring vertically arranged cells, material cups are required to support the cells. But existing cell conveyor lines cannot reuse the material cups, making it difficult to efficiently transfer vertically arranged cells between two cell workstations, which directly affects the production efficiency of the entire battery production line. Summary of the Invention

[0005] This invention provides a circular transfer line for battery cell production, which solves the problem that existing battery cell conveying lines have difficulty in efficiently transferring vertically arranged battery cells between two battery cell workstations.

[0006] This invention provides a toroidal transfer line for battery cell production, comprising:

[0007] First conveyor line, second conveyor line, third conveyor line, first track switching device, second track switching device and third track switching device;

[0008] The first conveyor line, the second conveyor line, and the third conveyor line are all capable of directional conveying of the material cups along their respective extension directions; at least one section of the first conveyor line is used to correspond to the cell unloading station of the first cell station, and at least one section of the third conveyor line is used to correspond to the cell loading station of the second cell station.

[0009] The first switching device is located between the first conveyor line and the second conveyor line. The first switching device is used to divert the material cups on the first conveyor line so as to realize the return of empty material cups on the first conveyor line and guide the material cups supporting the battery cells from the first conveyor line to the second conveyor line.

[0010] The second switching device is located between the second conveyor line and the third conveyor line to guide the cup supporting the battery cell from the second conveyor line to the third conveyor line;

[0011] The third switching device is located behind the first switching device along the conveying direction of the first conveyor line. The third switching device is located between the first conveyor line and the third conveyor line to guide the empty cups on the third conveyor line back to the first conveyor line and to control the backflow of the empty cups on the first conveyor line.

[0012] According to the present invention, a circular conveyor line for battery cell production is provided, wherein a first pitch device is provided on one side of the first conveyor line corresponding to the battery cell unloading station, and the first pitch device is used to adjust the pitch of a preset number of material cups on the first conveyor line.

[0013] A second pitch-changing device is provided on one side of the third conveyor line, corresponding to the battery cell loading station. The second pitch-changing device is used to adjust the pitch of a preset number of material cups on the third conveyor line.

[0014] According to the present invention, a circular transfer line for battery cell production is provided, wherein the first switching device includes a first switching guide and a second switching guide.

[0015] The first reversing guide is disposed on the upper side of the first conveyor line, and the second reversing guide is disposed on the upper side of the second conveyor line, forming a first reversing channel between the first reversing guide and the second reversing guide;

[0016] The height limit of the first reversing guide is greater than the height of the material cup and less than the height of the battery cell supported on the material cup; the first reversing channel is used to guide the material cup supporting the battery cell from the first conveyor line to the second conveyor line.

[0017] According to the present invention, a circular transfer line for battery cell production is provided, wherein the second switching device includes a third switching guide, a fourth switching guide, and a first full-feed buffer assembly;

[0018] The third reversing guide is disposed on the upper side of the second conveyor line, and the fourth reversing guide is disposed on the upper side of the third conveyor line. A second reversing channel is formed between the third reversing guide and the fourth reversing guide. The second reversing channel is used to guide the material cup carrying the battery cell conveyed on the second conveyor line to the third conveyor line.

[0019] The first full-material buffer assembly is located behind the third lane-changing guide along the conveying direction of the second conveyor line. The first full-material buffer assembly includes a first stop and a second stop, which are spaced apart and arranged opposite to each other along the conveying direction. Both the first stop and the second stop can switch between a first state close to the second conveyor line and a second state far away from the second conveyor line.

[0020] When both the first stop and the second stop are in the first state, the first stop and the second stop are used to buffer a preset number of the cups on the second conveyor line.

[0021] According to the present invention, at least one of the first stop member and the second stop member includes a first telescopic drive member and a baffle.

[0022] The output end of the first telescopic drive component is connected to the baffle to drive the baffle to reciprocate.

[0023] When the output end of the first telescopic drive is in the extended state, the baffle is located above the second conveyor line to stop the cup carrying the battery cell being conveyed on the second conveyor line; when the output end of the first telescopic drive is in the retracted state, the baffle is away from the second conveyor line.

[0024] According to the present invention, a circular feed line for battery cell production is provided, wherein the first full-load buffer assembly further includes a first position sensor and a second position sensor;

[0025] The first position sensor is disposed on one side of the first stop member, and the first position sensor and the first stop member are electrically connected. The first position sensor is used to detect whether the material cup is present at the position corresponding to the first stop member on the second conveyor line. The first stop member is used to switch between the first state and the second state according to the detection information of the first position sensor.

[0026] The second position sensor is disposed on one side of the second stop member. The first position sensor and the second position sensor are electrically connected to the second stop member respectively. The second position sensor is used to detect whether the material cup is present at the position corresponding to the second stop member on the second conveyor line. The second stop member is used to switch between the first state and the second state according to the detection information of the second position sensor and the first position sensor.

[0027] According to the present invention, a ring-shaped transfer line for battery cell production is provided, wherein the third switching device includes a fifth switching guide, a sixth switching guide, and a second telescopic drive.

[0028] The fifth lane-changing guide is located on the upper side of the third conveyor line, the second telescopic drive is located on one side of the first conveyor line, and the output end of the second telescopic drive is connected to the sixth lane-changing guide to drive the sixth lane-changing guide to move between the first position and the second position.

[0029] When the sixth reversing guide is in the first position, the sixth reversing guide is located on the upper side of the first conveyor line, and a reversing channel is formed between the first side of the sixth reversing guide and the first side of the fifth reversing guide. The reversing channel is used to guide the empty cups on the third conveyor line to move to the first conveyor line, and the second side of the sixth reversing guide is used to stop the empty cups being conveyed on the first conveyor line.

[0030] When the sixth lane change guide is in the second position, the sixth lane change guide moves away from the first conveyor line towards the side opposite to the third conveyor line.

[0031] According to the present invention, a circular transfer line for battery cell production is provided, wherein the third switching device further includes a second full-load buffer assembly;

[0032] The second full-material buffer assembly is located behind the fifth lane-changing guide along the conveying direction of the third conveyor line. The second full-material buffer assembly includes a third stop and a fourth stop, which are spaced apart and arranged opposite to each other along the conveying direction. Both the third stop and the fourth stop can switch between a first state close to the third conveyor line and a second state far away from the first conveyor line.

[0033] When both the third stop and the fourth stop are in the first state, the third stop and the fourth stop are used to buffer a preset number of the material cups on the third conveyor line.

[0034] According to a circular transfer line for battery cell production provided by the present invention, the third track-changing device further includes a warning component; the warning component includes a height limiter, a third position sensor, and an alarm.

[0035] The height limiting component is located on the rear side of the second full-material buffer assembly along the conveying direction of the third conveyor line. The height limiting component is located on the upper side of the third conveyor line. The height limiting height of the height limiting component is greater than the height of the material cup and less than the height of the battery cell supported on the material cup.

[0036] The third position sensor is located on one side of the height limiting component, and the third position sensor is electrically connected to the alarm.

[0037] The third position sensor is used to send a trigger signal to the alarm when it detects that the battery cell is blocked by the height limiter; the alarm is configured to give an alarm indication based on the trigger signal.

[0038] According to the present invention, a circular transfer line for battery cell production is provided, wherein the third switching device further includes a fourth position sensor and a fifth position sensor;

[0039] The fourth position sensor and the fifth position sensor are spaced apart and are arranged opposite to each other along the conveying direction of the first conveyor line; the fourth position sensor and the fifth position sensor are located behind the second telescopic drive member along the conveying direction of the first conveyor line, with the fourth position sensor located close to the second telescopic drive member and the fifth position sensor located away from the second telescopic drive member;

[0040] The second full-material buffer component, the fourth position sensor, and the fifth position sensor are electrically connected to the second telescopic drive component, respectively; the fourth position sensor is used to detect whether there is a material cup on the first conveyor line at a position close to the rear of the second telescopic drive component, and the fifth position sensor is used to detect whether there is a material cup on the first conveyor line at a position far from the rear of the second telescopic drive component.

[0041] The second telescopic drive is used to control the position of the sixth lane-changing guide based on the state of the second full-load buffer component and the information fed back by the fourth and fifth position sensors.

[0042] The circular conveyor line for battery cell production provided by this invention, by configuring a first conveyor line, a second conveyor line, a third conveyor line, a first switching device, a second switching device, and a third switching device, firstly, by using the first switching device, the material cups on the first conveyor line are diverted and conveyed, so that empty material cups are returned to the first conveyor line and material cups containing battery cells are moved from the first conveyor line to the second conveyor line. Then, by using the second switching device, the material cups containing battery cells are moved from the second conveyor line to the third conveyor line. Next, by using the third switching device, the empty material cups on the third conveyor line are guided to return, and the return of empty material cups on the first conveyor line is controlled. Thus, the entire circular conveyor line can ensure that material cups containing battery cells are transported to the target battery cell station in a timely and efficient manner, while also returning empty material cups for recycling.

[0043] As can be seen from the above, the circular transfer line for battery cell production provided by the present invention can guide the material cup containing battery cells to move automatically to the next battery cell station and realize the automatic return of empty material cups, thereby achieving the effect of efficiently transferring vertically arranged battery cells between two battery cell stations. Attached Figure Description

[0044] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0045] Figure 1 is one of the structural schematic diagrams of the annular transfer line for battery cell production provided by the present invention;

[0046] Figure 2 is a three-dimensional schematic diagram of Figure 2 provided by the present invention;

[0047] Figure 3 is a second schematic diagram of the structure of the annular transfer line for battery cell production provided by the present invention;

[0048] Figure 4 is a three-dimensional schematic diagram of Figure 3 provided by the present invention;

[0049] Figure 5 is a schematic diagram of the structure of the first lane-changing device provided by the present invention, which is based on the first conveyor line and the second conveyor line.

[0050] Figure 6 is a schematic diagram of the structure of the second lane-changing device provided by the present invention based on the second conveyor line and the third conveyor line;

[0051] Figure 7 is a schematic diagram of the structure of the third lane-changing device provided by the present invention based on the first conveyor line and the third conveyor line;

[0052] Figure 8 is a schematic diagram of the structure of the first pitch-changing device provided by the present invention.

[0053] Figure label:

[0054] 1. Circular flow line;

[0055] 11. First conveyor line; 12. Second conveyor line; 13. Third conveyor line;

[0056] 14. First lane-changing device; 141. First lane-changing guide; 142. Second lane-changing guide;

[0057] 15. Second lane-changing device; 151. Third lane-changing guide; 152. Fourth lane-changing guide; 153. First full-load buffer assembly; 1531. First stop; 1532. Second stop; 1533. First position sensor; 1534. Second position sensor; 15311. Baffle; 15312. First telescopic drive;

[0058] 16. Third lane-changing device; 161. Fifth lane-changing guide; 162. Sixth lane-changing guide; 163. Second telescopic drive; 164. Second full-material buffer assembly; 165. Early warning assembly; 166. Fourth position sensor; 167. Fifth position sensor; 1621. First side; 1622. Second side; 1641. Third stop; 1642. Fourth stop; 1651. Height limiter; 1652. Third position sensor;

[0059] 17. First pitch-changing device; 171. Frame; 172. Rotary drive mechanism; 173. Screw; 1731. Groove;

[0060] 18. Second pitch control device;

[0061] 2. Feed cup; 3. Battery cell. Detailed Implementation

[0062] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0063] The toroidal transfer line for battery cell production provided by the present invention will be described in detail below with reference to Figures 1 to 8, through specific embodiments and application scenarios.

[0064] In some embodiments, as shown in Figures 1 to 4, this embodiment provides a circular conveyor line for battery cell production, including: a first conveyor line 11, a second conveyor line 12, a third conveyor line 13, a first switching device 14, a second switching device 15, and a third switching device 16.

[0065] The first conveyor line 11, the second conveyor line 12, and the third conveyor line 13 are all capable of directional conveying of the material cup 2 along their respective extension directions; at least one section of the first conveyor line 11 is used to correspond to the cell unloading station of the first cell station, and at least one section of the third conveyor line 13 is used to correspond to the cell loading station of the second cell station.

[0066] The first switching device 14 is located between the first conveying line 11 and the second conveying line 12. The first switching device 14 is used to divert the material cup 2 on the first conveying line 11 so as to realize the return of the empty material cup 2 on the first conveying line 11, and to guide the material cup 2 supporting the battery cell 3 from the first conveying line 11 to the second conveying line 12.

[0067] The second switching device 15 is located between the second conveyor line 12 and the third conveyor line 13 to guide the material cup 2 supporting the battery cell 3 from the second conveyor line 12 to the third conveyor line 13.

[0068] The third switching device 16 is located behind the first switching device 14 along the conveying direction of the first conveyor line 11. The third switching device 16 is located between the first conveyor line 11 and the third conveyor line 13 to guide the empty material cup 2 on the third conveyor line 13 back to the first conveyor line 11, and to control the backflow of the empty material cup 2 on the first conveyor line 11.

[0069] Understandably, the first conveyor line 11, the second conveyor line 12 and the third conveyor line 13 can all be configured to include a conveyor belt, a bracket and a roller. The conveyor belt is set on the bracket, and a roller is set at the position where the direction of the conveyor belt changes. The roller drives the conveyor belt to move, thereby realizing the conveying of the material cup 2 placed on the conveyor belt.

[0070] The circular conveyor line 1 has an upper and lower station. The upper station is located on the first conveyor line 11, and the lower station is located on the third conveyor line 13. The cell unloading station of the first cell station is set opposite to the upper station of the circular conveyor line 1, and the cell loading station of the second cell station is set opposite to the lower station of the circular conveyor line 1.

[0071] In some embodiments, the first cell station may be a cell end flattening station, and the second cell station may be a cell end positive current collector welding station or a cell end negative current collector welding station.

[0072] In some embodiments, the first cell station may be a cell end positive current collector welding station, and the second cell station may be a cell end negative current collector welding station; or, the first cell station may be a cell end negative current collector welding station, and the second cell station may be a cell end positive current collector welding station.

[0073] First, at the cell unloading station of the first cell station, the cell 3 is transferred to an empty cup 2 on the first conveyor line 11 to complete the cell loading process. When the cup 2 is conveyed to the first switching device 14, the empty cup 2 that has not been loaded continues to be conveyed forward along the first conveyor line 11. Based on the circular arrangement of the first conveyor line, the empty cup 2 can flow back to the cell unloading station of the first cell station, realizing the recycling of the empty cup 2. At the same time, the cup 2 with cell 3 is guided by the first switching device 14 into the second conveyor line 12 to ensure that the cup 2 with cell 3 that is being loaded can be conveyed forward.

[0074] Next, the material cup 2 carrying the battery cells, which is conveyed along the second conveyor line 12, moves to the third conveyor line 13 via the second transfer device 15, so as to realize the operation of the battery cell loading station of the second battery cell station on the third conveyor line 13. The battery cells 3 are transferred from the unloading station of the circular transfer line 1 to the battery cell loading station of the second battery cell station. After the battery cells 3 are removed, the empty material cup 2 continues to be conveyed on the third conveyor line 13.

[0075] Then, the empty material cups 2 from the second cell station are conveyed along the third conveyor line 13 to the third switching device 16. The empty material cups 2 are guided by the third switching device 16 to the first conveyor line 11. At the same time, the third switching device 16 can also control the return of the empty material cups 2 conveyed along the first conveyor line 11. The empty material cups 2 on the three conveyor lines all return to the cell unloading station of the first cell station, that is, the upper station of the circular transfer line 1. This realizes the recycling of the empty material cups 2. There is no need for manual identification and selection of empty material cups 2 and special removal of empty material cups 2. The whole process can be completed automatically, which improves the production efficiency of the circular transfer line.

[0076] The circular conveyor line 1 for battery cell production provided by the present invention, by configuring a first conveyor line 11, a second conveyor line 12, a third conveyor line 13, a first switching device 14, a second switching device 15, and a third switching device 16, firstly, by using the first switching device 14, the material cups on the first conveyor line 11 are diverted and conveyed, so that empty material cups are returned on the first conveyor line 11, and material cups 2 containing battery cells 3 are moved from the first conveyor line 11 to the second conveyor line 12. Then, by using the second switching device 15, the material cups 2 containing battery cells 3 are moved from the second conveyor line 12 to the third conveyor line 13. Next, by using the third switching device 16, the empty material cups 2 on the third conveyor line 13 are guided to return, and the return of empty material cups 2 on the first conveyor line 11 is controlled. Thus, the entire circular conveyor line can ensure that the material cups 2 containing battery cells 3 are transported to the target battery cell station in a timely and efficient manner, while also returning empty material cups 2 for recycling.

[0077] As can be seen from the above, the circular transfer line 1 for battery cell production provided by the present invention can guide the material cup 2 containing battery cells 3 to move automatically to the next battery cell station and realize the automatic return of empty material cup 2, thereby achieving the effect of efficiently transferring vertically arranged battery cells 3 between two battery cell stations.

[0078] In some embodiments, as shown in Figures 1 to 4, a first pitch device 17 corresponding to the battery cell unloading station is provided on one side of the first conveyor line 11 of this embodiment. The first pitch device 17 is used to adjust the pitch of a preset number of material cups 2 on the first conveyor line 11.

[0079] A second pitch device 18 is provided on one side of the third conveyor line 13, which is arranged in accordance with the battery cell feeding station. The second pitch device 18 is used to adjust the pitch of a preset number of material cups 2 on the third conveyor line 13.

[0080] Understandably, the spacing requirements for battery cell 3 are different when it is unloaded at the battery cell unloading station and when it is loaded at the battery cell loading station. Therefore, when performing the unloading operation at the first battery cell station or the loading operation at the second battery cell station, it is necessary to adjust the spacing of the material cups 2 supporting the battery cells to ensure that the equipment requirements of the corresponding station are met.

[0081] This embodiment uses a first pitch-changing device 17 to adjust the pitch of a preset number of empty material cups 2, thereby adjusting the distance between adjacent empty material cups 2 to facilitate the unloading of battery cells 3 at the battery cell unloading station of the first battery cell station. This embodiment also uses a second pitch-changing device 18 to adjust the pitch of a preset number of material cups 2 carrying battery cells, thereby adjusting the distance between adjacent battery cells 3 to facilitate the loading of battery cells 3 at the battery cell loading station of the second battery cell station. The first pitch-changing device 17 and the second pitch-changing device 18 can meet the processing needs of battery cells 3 between different battery cell stations. The pitch-changing distances of the first pitch-changing device 17 and the second pitch-changing device 18 can be flexibly adjusted according to the unloading mechanism of the previous battery cell station and the loading mechanism of the next battery cell station.

[0082] Specifically, at least one of the first pitch control device 17 and the second pitch control device 18 includes a frame 171, a rotary drive mechanism 172, and a screw 173.

[0083] The screw 173 is rotatably mounted on the frame 171. The rotary drive mechanism 172 is connected to the screw 173 to drive the screw 173 to rotate on the frame 171.

[0084] The screw 173 is located on one side of a plurality of material cups 2 and extends along the arrangement direction of the material cups 2. The side wall of the screw 173 is provided with a groove 1731, which extends along a spiral trajectory relative to the central axis of the screw 173.

[0085] Specifically, for the first pitch-changing device 17, when the screw 173 rotates, multiple material cups at the cell feeding station can sequentially enter the groove 1731 and achieve pitch change under the drive of the groove 1731.

[0086] Correspondingly, for the second pitch-changing device 18, when the screw 173 rotates, multiple material cups at the battery cell feeding station can enter the groove 1731 in sequence and achieve pitch change under the drive of the groove 1731.

[0087] The frame 171 provides a mounting support for the rotary drive mechanism 172 and the screw 173. The screw 173 is mounted on the frame 171, so that the screw 173 can rotate relative to the frame 171.

[0088] Specifically, the rotary drive mechanism 172 can be an electric motor or a hydraulic motor.

[0089] In practical applications, the extension direction of the central axis of the screw 173 is consistent with the arrangement direction of the cups 2. When the screw 173 rotates, the first cup 2 entering the area of ​​the screw 173 is embedded in the groove 1731 of the screw 173. As the conveyor line moves forward, the first cup 2 moves forward with the rotation of the screw 173. After the screw 173 moves a distance of one screw pitch, the second cup 2 is embedded in the same groove 1731, thus maintaining the same forward movement as the first cup 2. As the screw 173 rotates and the conveyor line moves forward, a preset number of cups 2 move sequentially on the conveyor line in the area of ​​the screw 173. The distance between adjacent cups 2 is an integer multiple of the screw pitch of the screw 173, thereby enabling multiple cups 2 in the area of ​​the screw 173 to move at equal intervals.

[0090] Thus, for the first pitch-changing device 17, at the cell unloading station of the first cell station, the spacing between adjacent cells 3 is equal to the spacing between the material cups 2 on the first pitch-changing device 17 on the first conveyor line 11, so that the cells 3 at the first cell station can be accurately placed on the material cups 2; or for the second pitch-changing device 18, the spacing between the devices at the cell loading station is equal to the spacing between the material cups 2 on the second pitch-changing device 18 on the third conveyor line 13, so that the cells 3 on the second pitch-changing device 18 can be accurately taken out from the supported material cups 2.

[0091] In this embodiment, a frame 171, a rotary drive mechanism 172, and a screw 173 are provided in at least one of the first pitch changing device 17 and the second pitch changing device 18. This allows the rotation parameters of the rotary drive mechanism 172 to be set, thereby adjusting the rotation speed, direction, and rotation interval of the screw 173. This enables the screw 173 to rotate and drive multiple material cups 2 to move at equal intervals on the conveyor line in the area of ​​the screw 173. The spacing between the material cups 2 is equal to the equipment spacing of the corresponding battery cell unloading station or battery cell loading station. There is no need to manually adjust the spacing of the material cups 2, nor is there any need to interfere with the automatic operation of the battery cell unloading station of the first battery cell station or the battery cell loading station of the second battery cell station. This achieves the material cup 2 spacing that meets the requirements of the corresponding battery cell unloading station or battery cell loading station.

[0092] In practical applications, both the first pitch device 17 and the second pitch device 18 are equipped with multiple first material receiving sensors and multiple second material receiving sensors. The multiple first material receiving sensors are located on one side of the screw 173 and arranged sequentially along the extension direction of the screw 173. The multiple second material receiving sensors are located on one side of the screw 173 and arranged sequentially along the extension direction of the screw 173. The first material receiving sensor detects the presence of a material cup, and the second material receiving sensor detects the presence of a battery cell 3 on the material cup.

[0093] For the first pitch-changing device 17, when the first incoming material detection sensor detects that there are empty material cups 2 in the area of ​​the screw 173, the rotary drive mechanism 172 drives the screw 173 to rotate, completing the spacing adjustment of the preset number of empty material cups 2. At this time, multiple first incoming material detection sensors detect the presence of empty material cups 2, the rotary drive mechanism 172 stops operating, the screw 173 stops rotating, and the screw 173 stops the preset number of empty material cups 2 in the screw area. At this time, the battery cell loading station of the first battery cell station completes the loading operation of battery cells 3 on the preset number of empty material cups 2 in the area of ​​the screw 173. After that, multiple second incoming material detection sensors detect the presence of battery cells 3 on the material cups 2, the rotary drive mechanism 172 drives the screw 173 to rotate, and the screw 173 drives the preset number of material cups 2 with battery cells 3 to continue to be conveyed forward.

[0094] For the second pitch-changing device 18, when the second incoming material detection sensor detects the presence of a cup 2 containing a battery cell 3 in the screw 173 area, the rotary drive mechanism 172 drives the screw 173 to rotate, completing the spacing adjustment of the preset number of cups 2 containing battery cells 3. At this time, multiple second incoming material detection sensors detect the presence of cups 2 containing battery cells 3, the rotary drive mechanism 172 stops operating, the screw 173 stops rotating, and the screw 173 stops the preset number of cups 2 containing battery cells 3 in the screw area. At this time, the battery cell unloading station of the second battery cell station completes the unloading operation of the preset number of cups 2 containing battery cells 3 in the screw 173 area. After that, multiple first incoming material detection sensors detect the presence of empty cups 2 on the cups 2, the rotary drive mechanism 172 drives the screw 173 to rotate, and the screw 173 drives the preset number of empty cups 2 to continue to be conveyed forward.

[0095] In some embodiments, as shown in FIG1, FIG3 and FIG5, the first lane changing device 14 of this embodiment includes a first lane changing guide 141 and a second lane changing guide 142.

[0096] The first lane-changing guide 141 is disposed on the upper side of the first conveyor line 11, and the second lane-changing guide 142 is disposed on the upper side of the second conveyor line 12, forming a first reversing channel between the first lane-changing guide 141 and the second lane-changing guide 142.

[0097] The height limit of the first reversing guide 141 is greater than the height of the cup 2 and less than the height of the battery cell 3 supported on the cup 2; the first reversing channel is used to guide the cup 2 supporting the battery cell 3 from the first conveying line 11 to the second conveying line 12.

[0098] Understandably, both the first lane-changing guide 141 and the second lane-changing guide 142 include an installation part and a guide part. The installation part and the guide part are arranged vertically. The installation part is arranged along the height direction of the material cup 2, and the guide part is arranged along the diameter direction of the material cup 2. The two guide parts of the first lane-changing guide 141 and the second lane-changing guide 142 are arranged opposite to each other. The guide part of the first lane-changing guide 141 has a guide surface that is inclined relative to the second lane-changing guide 142, and the guide part of the second lane-changing guide 142 has a guide surface that is inclined relative to the first lane-changing guide 141. The guide surfaces of the first lane-changing guide 141 and the guide surfaces of the second lane-changing guide 142 are parallel to each other, forming a first reversing channel.

[0099] The height of the guide portion of the first reversing guide 141 is greater than the height of the cup 2 and less than the height of the battery cell 3 supported on the cup 2, so that an empty cup 2 can pass under the first reversing guide 141, and a cup 2 with a battery cell 3 can move to abut against the first reversing guide 141. At the same time, the height of the guide portion of the second reversing guide 142 is greater than the height of the cup 2 and less than the height of the battery cell 3 supported on the cup 2, so as to guide the cup 2 with a battery cell 3 that abuts against the first reversing guide 141 to change its moving direction in sequence and be conveyed forward along the first reversing channel to the second conveying line 12.

[0100] In this embodiment, by setting a first reversing guide 141 and a second reversing guide 142, the material cup 2 containing the battery cell 3 is guided from the first conveying line 11 to the second conveying line 12 through the first reversing channel formed between the first reversing guide 141 and the second reversing guide 142. At the same time, the empty material cup 2 flows back from the first conveying line 11, achieving the effect of simple structure and automatic diversion and reversing function.

[0101] In some embodiments, as shown in FIG1, FIG3 and FIG6, the second lane changing device 15 of this embodiment includes a third lane changing guide 151, a fourth lane changing guide 152 and a first full-load buffer assembly 153.

[0102] The third reversing guide 151 is disposed on the upper side of the second conveyor line 12, and the fourth reversing guide 152 is disposed on the upper side of the third conveyor line 13. A second reversing channel is formed between the third reversing guide 151 and the fourth reversing guide 152. The second reversing channel is used to guide the material cup 2 carrying the battery cell 3 conveyed on the second conveyor line 12 to the third conveyor line 13.

[0103] The first full-load buffer assembly 153 is located behind the third lane-changing guide 151 along the conveying direction of the second conveyor line 12. The first full-load buffer assembly 153 includes a first stop 1531 and a second stop 1532. The first stop 1531 and the second stop 1532 are spaced apart and are arranged opposite to each other along the conveying direction. Both the first stop 1531 and the second stop 1532 can switch between a first state close to the second conveyor line 12 and a second state far away from the second conveyor line 12.

[0104] When both the first stop 1531 and the second stop 1532 are in the first state, the first stop 1531 and the second stop 1532 are used to buffer a preset number of material cups 2 on the second conveyor line 12.

[0105] Understandably, the height limits of the third and fourth reversing guides 151 and 152 are both less than the height of the cup 2, allowing the cup 2 to move to contact the third reversing guide 151. Based on the guiding effect of the third reversing guide 151 on the cup 2, the cup 2 changes its direction of movement and then contacts the fourth reversing guide 152. Thus, the cup 2 can only be transported to the third conveyor line 13 along the second reversing channel.

[0106] Both the first stop 1531 and the second stop 1532 are in the second state, and the first stop 1531 and the second stop 1532 are away from the second conveyor line 12 to release the material cup 2 on the second conveyor line.

[0107] The first stop 1531 is initially in a first state, where it stops the cups 2 on the second conveyor line 12, preventing them from being stopped on the second conveyor line 12 after the first stop 1531. As the cups 2 on the second conveyor line 12 after the first stop 1531 are continuously conveyed, multiple cups 2 are arranged in a queue on the second conveyor line 12. When there is a certain number of cups 2 between the first stop 1531 and the second stop 1532, the second stop 1532 changes from the second state to the first state, and moves closer to the second conveyor line 12. Thus, the first stop 1531 and the second stop 1532 buffer a preset number of cups 2 on the second conveyor line 12, and the second stop 1532 stops the cups 2 behind it. A certain number of cups 2 are buffered on the second conveyor line 12, waiting to be released when the number of cups 2 on the third conveyor line 13 is insufficient.

[0108] The first stop 1531 and the second stop 1532 can be manual partitions, or electric or pneumatic inserts.

[0109] In some embodiments, as shown in FIG1, FIG3 and FIG6, at least one of the first stop member 1531 and the second stop member 1532 of this embodiment includes a first telescopic drive member 15312 and a baffle 15311.

[0110] The output end of the first telescopic drive member 15312 is connected to the baffle 15311 to drive the baffle 15311 to move back and forth.

[0111] When the output end of the first telescopic drive 15312 is in the extended state, the baffle 15311 is located on the upper side of the second conveyor line 12 to stop the material cup 2 carrying the battery cell 3 being conveyed on the second conveyor line 12; when the output end of the first telescopic drive 15312 is in the retracted state, the baffle 15311 is away from the second conveyor line 12.

[0112] Understandably, when the first stop 1531 or the second stop 1532 is in the first state, the first telescopic drive 15312 drives the baffle 15311 to extend to the upper side of the second conveyor line 12, and the baffle 15311 located on the upper side of the second conveyor line 12 stops the material cup 2; when the first stop 1531 or the second stop 1532 is in the second state, the first telescopic drive 15312 drives the baffle 15311 to retract away from the second conveyor line 12, and the material cup 2 on the second conveyor line 12 is released.

[0113] The first telescopic drive component 15312 can be any one of an electric push rod, a linear motor, and a cylinder.

[0114] In this embodiment, by setting a first telescopic drive component 15312 and a baffle 15311, the extension and retraction of the baffle 15311 can be controlled by the first telescopic drive component 15312 to stop or release the material cup 2 on the second conveyor line 12. The stopping and releasing control of the material cup 2 can be automatically realized without manual operation of the material cup 2, thereby improving production efficiency.

[0115] In some embodiments, as shown in FIG1, FIG3 and FIG6, the first full-load buffer component 153 of this embodiment further includes a first position sensor 1533 and a second position sensor 1534.

[0116] The first position sensor 1533 is disposed on one side of the first stop 1531. The first position sensor 1533 and the first stop 1531 are electrically connected. The first position sensor 1533 is used to detect whether there is a material cup 2 at the position corresponding to the first stop 1531 on the second conveyor line 12. The first stop 1531 is used to switch between a first state and a second state according to the detection information of the first position sensor 1533.

[0117] The second position sensor 1534 is disposed on one side of the second stop 1532. The first position sensor, the second position sensor 1534 and the second stop 1532 are electrically connected. The second position sensor 1534 is used to detect whether there is a material cup 2 at the position corresponding to the second stop 1532 on the second conveyor line 12. The second stop 1532 is used to switch between a first state and a second state according to the detection information of the first position sensor 1533 and the second position sensor 1534.

[0118] As the cup 2 is conveyed on the second conveyor line 12, the first stop 1531 is in the first state by default, stopping the cup 2 on the second conveyor line 12 after the first stop 1531. The cup 2 after the first stop 1531 continues to be conveyed on the second conveyor line 12. When the second position sensor 1534 detects that there is a cup 2 on the second conveyor line 12 at the position corresponding to the second stop 1532, and the first position sensor 1533 detects that there is a cup 2 on the second conveyor line 12 at the position corresponding to the first stop 1531, the second stop 1532 then switches to the first state, stopping the cup 2 after the second stop 1532. In this way, a preset number of cups 2 are buffered between the first stop 1531 and the second stop 1532.

[0119] When it is necessary to release the cups buffered between the first stop 1531 and the second stop 1532, the first stop 1531 and the second stop 1532 switch to the second state to release the preset number of cups 2 buffered between the first stop 1531 and the second stop 1532.

[0120] The first position sensor 1533 and the second position sensor 1534 can be photoelectric sensors.

[0121] In some embodiments, as shown in FIG1, FIG3 and FIG7, the third lane-changing device 16 of this embodiment includes a fifth lane-changing guide 161, a sixth lane-changing guide 162 and a second telescopic drive 163.

[0122] The fifth lane-changing guide 161 is located on the upper side of the third conveyor line 13, and the second telescopic drive 163 is located on one side of the first conveyor line 11. The output end of the second telescopic drive 163 is connected to the sixth lane-changing guide 162 to drive the sixth lane-changing guide 162 to move between the first position and the second position.

[0123] When the sixth reversing guide 162 is in the first position, the sixth reversing guide 162 is located above the first conveyor line 11. A reversing channel is formed between the first side 1621 of the sixth reversing guide 162 and the first side 1621 of the fifth reversing guide 161. The reversing channel is used to guide the empty material cup 2 on the third conveyor line 13 to move to the first conveyor line 11. The second side 1622 of the sixth reversing guide 162 is used to stop the empty material cup 2 being conveyed on the first conveyor line 11.

[0124] When the sixth lane change guide 162 is in the second position, the sixth lane change guide 162 moves away from the first conveyor line 11 toward the side away from the third conveyor line 13.

[0125] Understandably, the height limit of the fifth diversion guide 161 is less than the height of the cup 2, so that the cup 2 can move to abut against the fifth diversion guide 161. At the same time, the height limit of the sixth diversion guide 162 is less than the height of the cup 2, so that all cups 2 on the third conveyor line 13 are guided to pass through the diversion channel and be conveyed to the first conveyor line 11.

[0126] When the sixth reversing guide 162 is in the first position, the sixth reversing guide 162 is located on the first conveyor line 11. The first side 1621 of the sixth reversing guide 162 and the first side 1621 of the fifth reversing guide 161 are parallel and form a reversing channel. The second side 1622 of the sixth reversing guide 162 stops the material cup 2 on the first conveyor line 11.

[0127] When the sixth lane change guide 162 is in the second position, the sixth lane change guide 162 moves away from the first conveyor line 11 and releases the material cup 2 on the first conveyor line 11.

[0128] The second telescopic drive component 163 can be any one of an electric actuator, a linear motor, and a cylinder.

[0129] This embodiment, by setting a fifth lane-changing guide 161, a sixth lane-changing guide 162, and a second telescopic drive 163, can drive the sixth lane-changing guide 162 to move between a first position and a second position through the second telescopic drive 163. This allows for selective blocking and release of the material cups 2 according to the number of material cups 2 on the first conveyor line 11 and the third conveyor line 13, thus optimizing the passage route of the return material cups 2.

[0130] In some embodiments, as shown in FIG1, FIG3 and FIG7, the third lane changing device 16 of this embodiment further includes a second full-load buffer component 164.

[0131] The second full-load buffer assembly 164 is located behind the fifth lane-changing guide 161 along the conveying direction of the third conveyor line 13. The second full-load buffer assembly 164 includes a third stop 1641 and a fourth stop 1642, which are spaced apart and arranged opposite to each other along the conveying direction. Both the third stop 1641 and the fourth stop 1642 can switch between a first state close to the third conveyor line 13 and a second state far away from the first conveyor line 11.

[0132] When both the third stop 1641 and the fourth stop 1642 are in the first state, the third stop 1641 and the fourth stop 1642 are used to buffer a preset number of material cups 2 on the third conveyor line 13.

[0133] When the load pressure of the first conveyor line 11 is high, the third stop 1641 is in the first state, stopping the cup 2 on the third conveyor line 13. As the cup 2 on the third conveyor line 13 after the third stop 1641 is continuously conveyed, the cup 2 after the third stop 1641 is arranged in a queue on the third conveyor line 13. When there is a cup 2 on the third conveyor line 13 corresponding to the fourth stop 1642, the fourth stop 1642 changes from the second state to the first state. The third stop 1641 and the fourth stop 1642 buffer a preset number of cups 2 on the third conveyor line 13, and the fourth stop 1642 stops the cup 2 behind it.

[0134] The second full-load buffer component 164 has the same structure and components as the first full-load buffer component 153, and will not be described in detail here.

[0135] In some embodiments, as shown in FIG1, FIG3 and FIG7, the third lane changing device 16 of this embodiment further includes a warning component 165; the warning component 165 includes a height limiter 1651, a third position sensor 1652 and an alarm.

[0136] The height limiting component 1651 is located on the rear side of the second full material buffer assembly 164 along the conveying direction of the third conveying line 13. The height limiting component 1651 is located on the upper side of the third conveying line 13. The height limiting height of the height limiting component 1651 is greater than the height of the material cup 2 and less than the height of the battery cell 3 supported on the material cup 2.

[0137] The third position sensor 1652 is located on one side of the height limiter 1651, and the third position sensor 1652 is electrically connected to the alarm.

[0138] The third position sensor 1652 is used to send a trigger signal to the alarm when it detects that the battery cell 3 is blocked by the height limiting member 1651; the alarm is configured to give an alarm indication based on the trigger signal.

[0139] Understandably, on the one hand, the height setting of the height limiter 1651 allows empty cups 2 to pass through, and the empty cups 2 can return to the first conveyor line 11 along the third conveyor line 13 via the third rerouting device 16, so as to realize the recycling of empty cups 2.

[0140] On the other hand, the height of the height limiter 1651 blocks the passage of the cup 2 containing the battery cell 3. The third position sensor 1652 is used to detect whether the cup 2 contains the battery cell 3. Specifically, when the cup 2 containing the battery cell 3 is blocked by the height limiter 1651, the third position sensor 1652 is triggered by the battery cell 3 and sends a trigger signal to the alarm. The alarm that receives the trigger signal will issue an alarm indication. The staff or the robotic arm will remove the cup 2 containing the battery cell 3 from behind the height limiter 1651 according to the alarm indication signal.

[0141] Among them, the third position sensor 1652 can be a photoelectric sensor, and the alarm can be an audible and visual alarm.

[0142] In this embodiment, by setting a height limiter 1651, a third position sensor 1652, and an alarm, empty material cups 2 can pass under the height limiter 1651, while material cups 2 with battery cells 3 are stopped behind the height limiter 1651. At the same time, the third position sensor 1652 transmits a signal to the alarm, triggering the alarm to indicate that the material cups 2 with battery cells 3 can be removed in a timely manner. This makes the return flow of empty material cups 2 in the third conveyor line 13 smooth, and the material cups 2 with battery cells 3 will not be mixed with the empty material cups 2. This ensures that the material returning to the first conveyor line 11 through the third switching device 16 is all empty material cups 2, which facilitates the next step of unloading battery cells 3.

[0143] In some embodiments, as shown in FIG1, FIG3 and FIG7, the third lane-changing device 16 of this embodiment further includes a fourth position sensor 166 and a fifth position sensor 167.

[0144] The fourth position sensor 166 and the fifth position sensor 167 are spaced apart and are arranged opposite to each other along the conveying direction of the first conveyor line 11. The fourth position sensor 166 and the fifth position sensor 167 are located behind the second telescopic drive member 163 along the conveying direction of the first conveyor line 11. The fourth position sensor 166 is arranged close to the second telescopic drive member 163, and the fifth position sensor 167 is arranged away from the second telescopic drive member 163.

[0145] The second full-load buffer assembly 164, the fourth position sensor 166, and the fifth position sensor 167 are electrically connected to the second telescopic drive member 163. The fourth position sensor 166 is used to detect whether there is a material cup 2 on the first conveyor line 11 at a position close to the rear of the second telescopic drive member 163, and the fifth position sensor 167 is used to detect whether there is a material cup 2 on the first conveyor line 11 at a position far from the rear of the second telescopic drive member 163.

[0146] The second telescopic drive 163 is used to control the position of the sixth lane-changing guide 162 based on the state of the second full-material buffer assembly 164 and the information fed back by the fourth position sensor 166 and the fifth position sensor 167.

[0147] Understandably, the fourth position sensor 166 and the fifth position sensor 167 can be photoelectric sensors.

[0148] In practical applications, since the number of empty cups 2 returning on the third conveyor line 13 is greater than that on the first conveyor line 11, in order to avoid the accumulation of cups 2 and to guide the orderly return of empty cups 2, the release priority of empty cups 2 on the third conveyor line 13 is set higher than that on the first conveyor line 11.

[0149] The second telescopic drive 163 controls the position of the sixth lane-changing guide 162 in two steps.

[0150] First, based on the state of the second full material buffer component 164, when a preset number of material cups 2 are buffered on the third conveyor line 13 between the third stop component 1641 and the fourth stop component 1642, the second telescopic drive component 163 drives the sixth track-changing guide component 162 to move to the first position to stop the empty material cups 2 on the first conveyor line 11. At the same time, the sixth track-changing guide component 162 and the fifth track-changing guide component 161 guide the preset number of empty material cups 2 buffered on the third conveyor line 13 to be conveyed to the first conveyor line 11.

[0151] Secondly, after the material cup 2 between the third stop 1641 and the fourth stop 1642 is released, the second telescopic drive 163 reads the position information of the fourth position sensor 166 and the fifth position sensor 167.

[0152] When the fourth position sensor 166 detects that there is a material cup 2 on the first conveyor line 11 at a position close to the rear of the second telescopic drive member 163, and at the same time the fifth position sensor 167 detects that there is a material cup 2 on the first conveyor line 11 at a position far from the rear of the second telescopic drive member 163, the second telescopic drive member 163 drives the sixth lane-changing guide member 162 to move to the second position, releasing the preset number of material cups 2 buffered between the fourth position sensor 166 and the fifth position sensor 167.

[0153] In this embodiment, by setting a fourth position sensor 166 and a fifth position sensor 167, the second telescopic drive member 163 can selectively release empty material cups 2 on the first conveyor line 11 and the third conveyor line 13 based on the state of the second full material buffer component 164 and the information fed back by the fourth position sensor 166 and the fifth position sensor 167. This ensures that the empty material cups 2 on the third conveyor line 13 are returned in a timely manner without the accumulation of material cups 2, and also allows the empty material cups 2 on the first conveyor line 11 to be returned in an orderly manner while being buffered. This controls the number of material cups 2 conveyed on the first conveyor line 11 and ensures that there are orderly and continuous return material cups 2 at the cell unloading station.

[0154] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A toroidal production line for battery cell manufacturing, characterized in that, include: First conveyor line, second conveyor line, third conveyor line, first track switching device, second track switching device and third track switching device; The first conveyor line, the second conveyor line, and the third conveyor line are all capable of directional conveying of the material cups along their respective extension directions; at least one section of the first conveyor line is used to correspond to the cell unloading station of the first cell station, and at least one section of the third conveyor line is used to correspond to the cell loading station of the second cell station; the first switching device is located between the first conveyor line and the second conveyor line, and the first switching device is used to divert the material cups on the first conveyor line so as to realize the return of empty material cups on the first conveyor line, and to guide the material cups supporting the cells from the first conveyor line to the second conveyor line; The second switching device is located between the second conveyor line and the third conveyor line to guide the cups supporting the battery cells from the second conveyor line to the third conveyor line; the third switching device is located behind the first switching device along the conveying direction of the first conveyor line, and is located between the first conveyor line and the third conveyor line to guide the empty cups on the third conveyor line back to the first conveyor line, and to control the backflow of the empty cups on the first conveyor line.

2. The circular conveyor line for battery cell production according to claim 1, characterized in that, A first pitch-changing device is provided on one side of the first conveyor line, corresponding to the battery cell unloading station. The first pitch-changing device is used to adjust the pitch of a preset number of material cups on the first conveyor line. A second pitch-changing device is provided on one side of the third conveyor line, corresponding to the battery cell loading station. The second pitch-changing device is used to adjust the pitch of a preset number of material cups on the third conveyor line.

3. The toroidal production line for battery cell manufacturing according to any one of claims 1 to 2, characterized in that, The first rerouting device includes a first rerouting guide and a second rerouting guide; the first rerouting guide is disposed on the upper side of the first conveyor line, and the second rerouting guide is disposed on the upper side of the second conveyor line, forming a first reversing channel between the first rerouting guide and the second rerouting guide; wherein, the height limit of the first rerouting guide is greater than the height of the material cup and less than the height of the battery cell supported on the material cup; the first reversing channel is used to guide the material cup supporting the battery cell to move from the first conveyor line to the second conveyor line.

4. The toroidal production line for battery cell manufacturing according to any one of claims 1 to 2, characterized in that, The second switching device includes a third switching guide, a fourth switching guide, and a first full-material buffer assembly. The third switching guide is disposed on the upper side of the second conveyor line, and the fourth switching guide is disposed on the upper side of the third conveyor line. A second reversing channel is formed between the third and fourth switching guides. The second reversing channel is used to guide the material cups supporting battery cells conveyed on the second conveyor line to the third conveyor line. The first full-material buffer assembly is disposed on the rear side of the third switching guide along the conveying direction of the second conveyor line. The first full-material buffer assembly includes a first stop and a second stop, which are spaced apart and arranged opposite to each other along the conveying direction. Both the first and second stops can switch between a first state close to the second conveyor line and a second state far away from the second conveyor line. When both the first and second stops are in the first state, the first and second stops are used to buffer a preset number of material cups on the second conveyor line.

5. The circular transfer line for battery cell production according to claim 4, characterized in that, At least one of the first stop and the second stop includes a first telescopic drive and a baffle; the output end of the first telescopic drive is connected to the baffle to drive the baffle to reciprocate; when the output end of the first telescopic drive is in the extended state, the baffle is located above the second conveyor line to stop the cup carrying the battery cell being conveyed on the second conveyor line; when the output end of the first telescopic drive is in the retracted state, the baffle is away from the second conveyor line.

6. The circular transfer line for battery cell production according to claim 5, characterized in that, The first full material buffer assembly further includes a first position sensor and a second position sensor; the first position sensor is disposed on one side of the first stop member, the first position sensor and the first stop member are electrically connected, and the first position sensor is used to detect whether the material cup exists at the position corresponding to the first stop member on the second conveyor line; The first stop is used to switch between the first state and the second state according to the detection information of the first position sensor; the second position sensor is disposed on one side of the second stop, and the first position sensor and the second position sensor are electrically connected to the second stop respectively. The second position sensor is used to detect whether the material cup exists at the position corresponding to the second stop on the second conveyor line. The second stop is used to switch between the first state and the second state based on the detection information from the second position sensor and the first position sensor.

7. The toroidal production line for battery cell manufacturing according to any one of claims 1 to 2, characterized in that, The third lane-changing device includes a fifth lane-changing guide, a sixth lane-changing guide, and a second telescopic drive. The fifth lane-changing guide is located on the upper side of the third conveyor line, and the second telescopic drive is located on one side of the first conveyor line. The output end of the second telescopic drive is connected to the sixth lane-changing guide to drive the sixth lane-changing guide to move between a first position and a second position. When the sixth lane-changing guide is in the first position, it is located on the upper side of the first conveyor line, and a reversing channel is formed between the first side of the sixth lane-changing guide and the first side of the fifth lane-changing guide. The reversing channel is used to guide an empty cup on the third conveyor line to move to the first conveyor line, and the second side of the sixth lane-changing guide is used to stop an empty cup being conveyed on the first conveyor line. When the sixth lane-changing guide is in the second position, it moves away from the first conveyor line towards the side opposite to the third conveyor line.

8. The circular production line for battery cell manufacturing according to claim 7, characterized in that, The third lane-changing device further includes a second full-material buffer assembly; the second full-material buffer assembly is disposed behind the fifth lane-changing guide along the conveying direction of the third conveyor line, the second full-material buffer assembly includes a third stop and a fourth stop, the third stop and the fourth stop are spaced apart and arranged opposite to each other along the conveying direction; the third stop and the fourth stop can switch between a first state close to the third conveyor line and a second state far away from the first conveyor line; wherein, when the third stop and the fourth stop are both in the first state, the third stop and the fourth stop are used to buffer a preset number of the material cups on the third conveyor line.

9. The circular production line for battery cell manufacturing according to claim 8, characterized in that, The third lane-changing device further includes a warning component; the warning component includes a height limiter, a third position sensor, and an alarm; the height limiter is located behind the second full-material buffer component along the conveying direction of the third conveyor line, and is located above the third conveyor line; the height limiter is greater than the height of the material cup and less than the height of the battery cell supported on the material cup; the third position sensor is located on one side of the height limiter, and is electrically connected to the alarm; wherein, the third position sensor is used to send a trigger signal to the alarm when it detects that the battery cell is blocked by the height limiter; the alarm is configured to provide an alarm indication based on the trigger signal.

10. The circular transfer line for battery cell production according to claim 9, characterized in that, The third lane-changing device further includes a fourth position sensor and a fifth position sensor; the fourth position sensor and the fifth position sensor are spaced apart and arranged opposite to each other along the conveying direction of the first conveyor line; the fourth position sensor and the fifth position sensor are located behind the second telescopic drive member along the conveying direction of the first conveyor line, with the fourth position sensor located close to the second telescopic drive member and the fifth position sensor located away from the second telescopic drive member; the second full-material buffer assembly, the fourth position sensor, and the fifth position sensor are electrically connected to the second telescopic drive member; the fourth position sensor is used to detect whether there is a material cup on the first conveyor line at a position close to the rear of the second telescopic drive member, and the fifth position sensor is used to detect whether there is a material cup on the first conveyor line at a position away from the rear of the second telescopic drive member; wherein, the second telescopic drive member is used to control the position of the sixth lane-changing guide member according to the state of the second full-material buffer assembly and the information fed back by the fourth position sensor and the fifth position sensor.

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