Electrode roll tab reversing equipment

Abstract

The utility model discloses electrode roll tab reversing equipment, which belongs to the technical field of lithium battery preparation and comprises a first conveying mechanism and a second conveying mechanism. The first material conveying mechanism and the second material conveying mechanism each comprise a driving unit, a supporting column and a cantilever shaft used for being connected with an electrode roll in a sleeved mode, the cantilever shafts are installed on the supporting columns, the driving units are used for controlling the cantilever shafts to rotate around the supporting columns in the axial direction, and the cantilever shafts are provided with material pushing parts capable of moving in the axial direction of the cantilever shafts. The rotating stroke of a cantilever shaft of the first material conveying mechanism comprises a feeding position far away from the second material conveying mechanism and a material pushing position facing the second material conveying mechanism. The rotating stroke of a cantilever shaft of the second material conveying mechanism comprises a discharging position far away from the first material conveying mechanism and a material receiving position capable of being in butt joint with the cantilever shaft, located on the material pushing position, of the first material conveying mechanism. And the damage risk of the pole piece is reduced while the blanking and reversing times are effectively reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of lithium battery preparation, and in particular relates to an electrode coil and tab reversing device. Background Art

[0002] Lithium-ion batteries have many advantages, such as high energy density, high output power, long charge and discharge life, no pollution, wide operating temperature range and low self-discharge. As a new type of high-energy chemical power source, it has been widely used in mobile phones, computers and electric vehicles in recent years. Lithium-ion batteries have the advantages of long battery life, long service life, low self-discharge rate and green environmental protection.

[0003] After the production of lithium-ion battery electrode rolls is completed, the large rolls of electrode rolls need to be symmetrically cut into small rolls of electrode rolls. There are tabs at both ends of the large rolls of electrode rolls. After being cut by the slitting equipment, the tabs of the small rolls of electrode rolls have two orientations, namely the inner side and the outer side. The operator inserts the electrode roll into the roll through the axis-to-axis material picking tool and places it on the buffer rack. This operation cannot change the orientation of the tabs. The subsequent loading equipment requires that the tabs of the incoming electrode rolls must all be oriented outward, that is, face to face with the operator, so a tab reversing device is needed to turn the roll to achieve the purpose of tab reversing.

[0004] The tab reversing device in the prior art often requires a lot of manpower in actual use in the production process. For example, the Chinese patent with application number 2020227865294 has a technical solution of placing a tab reversing frame next to the roller slitting machine. The reversing frame is a support structure at both ends. When unwinding, employees need to confirm the safe distance between the pole piece and the support structure at both ends before unwinding, otherwise it is very easy to cause damage to the pole piece. Moreover, the reversing frame can only realize the tab reversal of one roll of material at a time, and employees need to unload and reverse the material multiple times, which seriously affects the manpower allocation and work efficiency. Therefore, it is of great significance to the production of lithium-ion batteries to propose a device that can reduce manpower and pole piece loss and can realize the tab reversal of multiple rolls of electrode rolls at one time. Summary of the invention

[0005] The utility model provides an electrode roll and tab reversing device, which transmits the electrode roll through a pair of feeding mechanisms, and realizes the change of the tab direction during the transmission process. In the present invention, the feeding mechanism and the loading position before the tab reversal and the unloading position after the tab reversal are all shaft-to-shaft feeding, and the feeding mechanism can transmit multiple rolls at a time, which effectively reduces the number of unloading and reversing times and also reduces the risk of pole piece damage.

[0006] In order to achieve the above-mentioned purpose, the utility model is implemented by adopting the following technical solutions.

[0007] The utility model provides an electrode coil and tab reversing device, comprising a first material conveying mechanism and a second material conveying mechanism;

[0008] The first material feeding mechanism and the second material feeding mechanism each comprise a driving unit, a support and a cantilever shaft for sleeve-connecting the electrode roll, the cantilever shaft is mounted on the support, the driving unit is used to control the axial rotation of the cantilever shaft around the support, and the cantilever shaft is mounted with a pushing piece capable of moving axially along the cantilever shaft;

[0009] The rotation stroke of the cantilever shaft of the first material conveying mechanism includes a loading position away from the second material conveying mechanism and a pushing position toward the second material conveying mechanism;

[0010] The rotational travel of the cantilever shaft of the second material conveying mechanism includes a material discharging position away from the first material conveying mechanism and a material receiving position capable of being connected with the cantilever shaft of the first material conveying mechanism located at the material pushing position.

[0011] A pair of cantilever shafts rotating around different central axes of pillars are used as a material transmission mechanism, and a pushing piece is arranged on the cantilever shaft to push the electrode roll to move axially on the cantilever shaft along the cantilever shaft. The pair of cantilever shafts are used to transmit the electrode roll, so that the electrode roll can be loaded and unloaded axis-to-axis between the loading point, the cantilever shaft of the first material transmission mechanism, the cantilever shaft of the second mechanism and the unloading point, while the pole ear is reversed. Moreover, since the cantilever shaft can accommodate multiple rolls of electrode rolls at the same time, the reversing equipment can realize the transmission of multiple rolls of materials and the reversal of the pole ears in one material transmission process. This process reduces manual intervention, reduces the labor intensity and error rate of operators, reduces the risk of pole piece damage, and improves production safety and efficiency.

[0012] Optionally, the pillar is rotatably mounted on a base, and the driving unit is mounted on the base to drive the pillar to rotate;

[0013] The cantilever shaft is fixedly mounted on the side of the support column.

[0014] The setting of the support enables the cantilever shaft to be stably mounted on the base, provides a solid support point, reduces the lateral force caused by the rotation of the cantilever shaft, reduces vibration and deviation during operation, and improves the stability and durability of the overall structure.

[0015] Optionally, the driving unit includes a motor 1, a gear and a closed-loop rack;

[0016] The motor 1 is installed on the base and is used to drive the gear to rotate;

[0017] The gear is meshed with the bottom of the closed-loop rack and is used to drive the closed-loop rack to rotate around the central axis of the closed-loop rack;

[0018] The closed-loop rack is rotatably mounted on the bottom of the support column to drive the support column to rotate around the central axis of the support column.

[0019] Optionally, the driving unit further includes a connecting plate;

[0020] The connecting plate is mounted on the top of the closed-loop rack, and the cross-section of the connecting plate covers the cross-section of the closed-loop rack;

[0021] The strut is vertically arranged on the connecting plate, and the connecting plate is rotatably mounted on the base through a support member.

[0022] Through the combination of the first motor, the gear and the closed-loop rack, the precise rotation of the material conveying mechanism is realized. The design of the connecting plate makes the whole rotating device more stable, enabling the cantilever shaft to adapt to the material conveying requirements in different directions.

[0023] Optionally, the support member includes a plurality of load-bearing wheels and guide wheels;

[0024] The load-bearing wheels are distributed in the center of the bottom of the connecting plate and are used to support the weight of the connecting plate;

[0025] The guide wheels are distributed on the outer ring of the bottom of the connecting plate and are used to guide the rotation of the connecting plate.

[0026] The reasonable distribution of the load-bearing wheels and the guide wheels provides uniform support and precise guidance for the connecting plate, enhances the load-bearing capacity and running stability of the equipment, and helps to reduce equipment wear or failure caused by uneven load or improper guidance.

[0027] Optionally, the base includes a base bracket and a plurality of anchor bolts;

[0028] The top of the base bracket contacts the bottoms of the load-bearing wheels and the guide wheels and is used to support the load-bearing wheels and the guide wheels;

[0029] The anchor bolts are distributed at the bottom of the base bracket and are used to fix the base bracket to the ground.

[0030] The use of the base bracket and the anchor bolts ensures the stability of the entire material conveying mechanism, enabling the strut to be stably arranged on the ground without being affected by the rotation of the cantilever shaft on it.

[0031] Optionally, the pusher moves axially along the cantilever shaft through the second motor and the lead screw;

[0032] The second motor is mounted on the side of the strut, the lead screw is connected to the output end of the second motor, and the extending direction of the lead screw is the same as the extending direction of the cantilever shaft;

[0033] The pusher is sleeved on the outer circle of the lead screw and is threadedly connected to the lead screw.

[0034] The combination of the second motor and the lead screw realizes the precise movement of the pusher along the axial direction of the cantilever shaft, improving the control accuracy of the pushing process.

[0035] Optionally, the pusher includes a push rod and a slider nut fixedly connected;

[0036] The slider nut is used to drive the push rod to move along the axial direction of the cantilever shaft;

[0037] The push rod is used to push the electrode coil.

[0038] Through the fixed connection of the push rod and the slider nut, not only can the push rod still move linearly under the drive of the rotation of the lead screw, but also a strong driving force is provided for the movement of the electrode coil, enabling the linear movement of the push rod to effectively push the electrode coil to move along the axial direction of the cantilever shaft, improving the stability and reliability during the transmission of the electrode coil.

[0039] Optionally, a telescopic pin is provided at the free end of the cantilever shaft. The telescopic pin has a retracted position where the top end is not higher than the top surface of the cantilever shaft and an extended position where the top end is higher than the top surface of the cantilever shaft;

[0040] When the cantilever shaft of the first material transfer mechanism is at the loading position and the pushing position, the telescopic pin on this cantilever shaft is in the retracted position. When the cantilever shaft of the first material transfer mechanism is at other positions except the loading position and the pushing position, the telescopic pin on this cantilever shaft is in the extended position;

[0041] When the cantilever shaft of the first material transfer mechanism is at the unloading position and the receiving position, the telescopic pin on this cantilever shaft is in the retracted position. When the cantilever shaft of the first material transfer mechanism is at other positions except the unloading position and the receiving position, the telescopic pin on this cantilever shaft is in the extended position.

[0042] Through the variable position design of the telescopic pin, it limits the electrode coil when it extends out of the cantilever shaft during the transportation of the electrode coil, preventing the electrode coil from falling off during the rotation of the cantilever shaft, enhancing the safety of the operation, and retracting into the interior of the cantilever shaft to facilitate the movement of the electrode coil when the electrode coil enters and exits the cantilever shaft.

[0043] Compared with the prior art, the beneficial effects achieved by the present utility model are as follows: By arranging a pair of cantilever shafts to rotate around the central axes of different columns respectively and setting the rotation strokes of this pair of cantilever shafts, the electrode roll is conveyed between the feeding position before the tab commutation and the discharging position after the tab commutation, and the tab commutation of the electrode roll is realized during the conveying process, so that the electrode roll with the inner side of the tab facing upwards fed onto one of the material conveying mechanisms becomes the electrode roll with the outer side of the tab facing upwards after being conveyed to the other material conveying mechanism, achieving tab commutation in a manner with low risk and high efficiency; By adopting the shaft-to-shaft docking method of the cantilever shafts between the feeding position and the discharging position, the transfer of multiple rolls of materials can be realized in one operation, reducing the number of loading and unloading operations and docking times, and also avoiding the traditional docking method of the cantilever shaft and the V-drag. When unwinding the roll, it is not necessary for the employee to confirm the safe distance between the pole piece and the two-end support structure, reducing the risk of pole piece damage; By adopting electric rotation and electric material pushing, the automatic transfer of multiple rolls of materials is realized, reducing the cumbersome operation steps of employees and improving the production efficiency and automation rate; Also, by setting a telescopic pin at the free end of the cantilever shaft, the cantilever shaft limits the electrode roll during the process of rotating and transporting the electrode roll, preventing the electrode roll from falling and causing losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 The following shows the structural schematic diagram of the commutation device in Embodiment 2 of the present utility model;

[0045] Figure 2 The following shows the assembly schematic diagram of the driving device and the base in one embodiment of the present utility model;

[0046] Figure 3 The following shows the structural schematic diagram of the material pushing mechanism in one embodiment of the present utility model;

[0047] Figure 4 The following shows the structural schematic diagram of the commutation device in Embodiment 3 of the present utility model.

[0048] In the figures: 1. Base; 11. Anchor bolt; 12. Base bracket; 2. Driving device; 21. Motor I; 22. Reducer; 23. Gear; 24. Guide wheel; 25. Load-bearing wheel; 26. Closed-loop rack; 27. Connecting plate; 3. Column; 4. Material pushing mechanism; 41. Motor II; 42. Coupling; 43. Bearing block I; 44. Push rod; 45. Slide block nut; 46. Lead screw; 47. Bearing block II; 5. Cantilever shaft; 6. Magnetic telescopic pin. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0049] The present utility model will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present utility model and cannot be used to limit the protection scope of the present utility model.

[0050] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, terms such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise stated, the meaning of "a plurality" is two or more.

[0051] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific circumstances.

[0052] Embodiment 1

[0053] This embodiment provides a tab commutation device, which can be applicable to the simultaneous commutation of tabs of multiple coils. The device includes a first material conveying mechanism and a second material conveying mechanism;

[0054] Both the first material conveying mechanism and the second material conveying mechanism include a driving unit, a support column 3, and a cantilever shaft 5 for sleeving the electrode coil. The cantilever shaft 5 is installed on the support column 3. The driving unit is used to control the axial rotation of the cantilever shaft 5 around the support column 3. A pusher is installed on the cantilever shaft 5 and can move axially along the cantilever shaft 5;

[0055] The rotation stroke of the cantilever shaft 5 of the first material conveying mechanism includes a loading position away from the second material conveying mechanism and a pushing position towards the second material conveying mechanism;

[0056] The rotation stroke of the cantilever shaft 5 of the second material conveying mechanism includes an unloading position away from the first material conveying mechanism and a receiving position that can be docked with the cantilever shaft 5 of the first material conveying mechanism located at the pushing position.

[0057] By mounting the cantilever shaft 5 on the support column 3 and using the driving device to drive the cantilever shaft 5 to rotate around the support column, and respectively setting the rotation strokes of the cantilever shafts 5 of the two material conveying mechanisms, the support column 3 drives the cantilever shaft 5 to rotate around the axis of the support column 3 between the set points, conveys the slit electrode coil, and realizes the commutation of the tabs of the electrode coil during the conveying process. The risk of damage to the electrode tabs is reduced by the shaft-to-shaft loading and unloading method, and multiple coils of materials can be transported and the tabs commuted at one time, which not only reduces the labor input, but also improves the production efficiency and safety.

[0058] Embodiment 2

[0059] Based on Embodiment 1, the following design is also made in this embodiment.

[0060] As Figure 1 shown, the electrode coil tab commutation device of this embodiment is applicable to the processes of roller slitting and laser cutting in the lithium battery industry that require tab commutation. The device consists of two sets of single machines A and B with the same structure. The single machines A and B respectively include a base 1, a driving device 2, a support column 3, a pushing mechanism 4, a cantilever shaft 5, and a magnetic telescopic pin 6.

[0061] As Figure 2 shown, the base 1 includes anchor bolts 11 and a base bracket 12. The anchor bolts 11 are evenly distributed directly below the base bracket 12 to fix the base bracket 12 to the ground.

[0062] The driving device 2 includes a first motor 21, a reducer 22, a gear 23, a closed-loop rack 26, and a connecting plate 27. The reducer 22 is arranged above the base bracket 12. The first motor 21 is connected to the reducer 22. The gear 23 is connected to the reducer 22 by a key. The closed-loop rack 26 is circumferentially installed below the connecting plate 27. The gear 23 meshes with the closed-loop rack 26 to form a gear-rack pair. When the first motor 21 is started to drive the gear 23 to rotate, the gear 23 rotates to drive the closed-loop rack 26 to rotate around the axis of the closed-loop rack 26, and the connecting plate 27 rotates simultaneously under the drive of the rotation of the closed-loop rack 26. By the forward and reverse rotation of the first motor 21, the connecting plate 27 can achieve clockwise rotation and counterclockwise rotation.

[0063] In this embodiment, the driving device 2 is installed on the base 1 through a plurality of load-bearing wheels 25 and guide wheels 24. The load-bearing wheels 25 and the guide wheels 24 are both connected to the lower part of the connecting plate 27 by bolts. The load-bearing wheels 25 are evenly arranged directly above the base bracket 12 and at the center of the bottom of the connecting plate 27. The load-bearing wheels 25 are respectively in contact with the top of the base bracket 12 and the bottom of the connecting plate 27 to play a load-bearing role. The guide wheels 24 are evenly arranged on the side of the base bracket 12 and on the outer circle of the connecting plate 27. The guide wheels 24 are respectively in contact with the top of the base bracket 12 and the bottom of the connecting plate 27 to play a guiding role.

[0064] Reference Figure 1 In this embodiment, in order to keep the feeding mechanism stable during rotation, a pillar 3 is installed on the top of the connecting plate 27. The fixed end of the cantilever shaft 5 is installed on the side wall of the pillar 3. The cantilever shaft 5 is perpendicular to the pillar 3. When the connecting plate 27 rotates, the cantilever shaft is driven to rotate by the pillar 3.

[0065] As Figure 3 shown, the pushing mechanism 4 is arranged at the bottom of the cantilever shaft 5. The pushing mechanism includes a pusher and a second motor 41 and a lead screw 46. In order to enable the pusher to provide a strong driving force to the electrode coil, a push rod 44 and a slider nut 45 are selected as the pusher. The second motor 41 is connected to the side wall of the pillar 3. The shaft end of the second motor 41 is connected to the lead screw 46 through a coupling 42. The two ends of the lead screw 46 are respectively provided with a first bearing seat 43 and a second bearing seat 47. The first bearing seat 43 and the second bearing seat 47 are connected to the bottom of the cantilever shaft 5. The side wall of the push rod 44 is fixedly connected to the side wall of the slider nut 45. The slider nut 45 and the push rod 44 are both sleeved on the outer ring of the lead screw 46. Among them, the slider nut 45 is threadedly connected to the lead screw 46. By controlling the forward or reverse rotation of the second motor 41, the forward or backward movement of the slider nut 45 is controlled, thereby driving the forward or backward movement of the push rod 44, and further realizing the pushing of the electrode coil along the axial direction of the cantilever shaft.

[0066] The magnetic telescopic pin 6 is arranged at the free end of the cantilever shaft 5 and installed inside the cantilever shaft 5. A through hole is opened at the top of the cantilever shaft 5 to facilitate the lifting of the magnetic telescopic pin 6. When the cantilever shaft 5 drives the electrode coil to rotate, the magnetic telescopic pin 6 extends out of the top surface of the cantilever shaft 5 to limit the electrode coil on the cantilever shaft 5 and prevent the electrode coil from falling during the rotation of the cantilever shaft 5. When the cantilever shaft 5 performs shaft-to-shaft material transfer with the slitting equipment, the subsequent feeding equipment, and between two cantilever shafts 5, the magnetic telescopic pin 6 retracts to a position lower than the top surface of the cantilever shaft 5.

[0067] Embodiment 3

[0068] As Figure 4 shown, in this embodiment, the single machine A and the single machine B respectively include a base 1, a driving device 2, a counterweight 3, a pushing mechanism 4, a cantilever shaft 5, and a magnetic telescopic pin 6.

[0069] In this embodiment, the cantilever shaft 5 is fixedly installed on the side of the connecting plate 27 through a support and slidably installed on the side of the base bracket 12. The cantilever shaft 5 extends along a radial direction of the closed-loop rack 26. The outer contour of the base bracket 12 is adapted to the rotation locus of the support. A slide rail is provided on the side of the base bracket 12, and a slider is correspondingly provided at the position where the support is connected to the base bracket 12. The balance weight 3 is installed on the side of the connecting plate 27, and the extending direction of the balance weight 3 is opposite to the extending direction of the cantilever shaft 5.

[0070] In this embodiment, the second motor in the material pushing mechanism 4 is installed in the support. Other settings of the base 1, the driving device 2, the material pushing mechanism 4, the cantilever shaft 5, and the magnetostrictive pin 6 are the same as those in Embodiment 2. That is, in this embodiment, the driving device 2 in the single machine A and the single machine B can directly drive the cantilever shaft 5 to rotate around the central axis of the closed-loop rack.

[0071] In this embodiment, the balance weight 3 can be set as a cantilever shaft identical to the cantilever shaft 5. When the balance weight 3 is set as a cantilever shaft, the way it connects the connecting plate 27 and the base bracket 12 is the same as that of the cantilever shaft 5. And magnetostrictive pins 6 and a material pushing mechanism 4 identical to those on the cantilever shaft 5 are installed at corresponding positions thereon, and it participates in the electrode coil material transfer process as a standby cantilever shaft of the cantilever shaft 5.

[0072] Embodiment 4

[0073] This embodiment provides a working method for a multi-roll tab commutation device, and the specific steps are as follows.

[0074] In this embodiment, the initial positions of the cantilever shaft 5 of the single machine A and the cantilever shaft 5 of the single machine B are the material pushing position and the material receiving position respectively. The angle between the feeding position before tab commutation and the material pushing position of the cantilever shaft 5 of the single machine A is 90 degrees, and this position is the feeding position of the cantilever shaft 5 of the single machine A. In this embodiment, an AGV or a manual trolley is used as the feeding position. The angle between the discharging position after tab commutation and the material receiving position of the cantilever shaft 5 of the single machine B is 90 degrees, and this position is the discharging position of the cantilever shaft 5 of the single machine B. In this embodiment, an AGV or a manual trolley is used as the discharging position.

[0075] When an AGV or a manual trolley transports multiple rolls of materials that need tab commutation, start the first motor 21 of the single machine A to rotate forward. Through the gear-rack pair composed of the gear 23 and the closed-loop rack 26, rotate the cantilever shaft 5 located at the material pushing position 90 degrees to the feeding position. After the cantilever shaft 5 of the single machine A rotates in place, the magnetostrictive pin 6 moves downward. The AGV or the manual trolley transfers the multiple rolls of materials onto the cantilever shaft 5 of the single machine A. After the feeding is in place, the magnetostrictive pin 6 of the single machine A moves upward to prevent the material rolls from falling off during the rotation process. Subsequently, the first motor 21 of the single machine A rotates in reverse, driving the material rolls on the cantilever shaft 5 to rotate back to the material pushing position.

[0076] When the cantilever shaft 5 of the single machine A located at the pushing position is docked with the cantilever shaft 5 of the single machine B located at the receiving position, the motor 21 of the single machine A stops rotating, and at the same time, the magnetic telescopic pins 6 of the single machine A and the single machine B descend, and the pushing mechanism 4 of the single machine A works to push the multiple rolls of material onto the cantilever shaft 5 of the single machine B to realize the transfer of the material rolls.

[0077] When the multiple coils of materials are transferred to the cantilever shaft 5 of the single machine B, the magnetic telescopic pin 6 of the single machine B moves up, and the motor 21 of the single machine B is started. The gear rack pair composed of the gear 23 and the closed-loop rack 26 will rotate the cantilever shaft 5 90 degrees to the unloading position. After the cantilever shaft 5 of the single machine B is rotated into place, the magnetic telescopic pin 6 moves down, and the motor 41 of the single machine B pushes the multiple coils of materials along the axial direction of the cantilever shaft 5 to the AGV or manual cart, thereby achieving the purpose of rapid reversing of the pole ears of multiple coils of materials.

[0078] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An electrode winding and tab reversing device, characterized in that: It includes a first material transfer mechanism and a second material transfer mechanism; The first material feeding mechanism and the second material feeding mechanism each comprise a driving unit, a support and a cantilever shaft for sleeve-connecting the electrode roll, the cantilever shaft is mounted on the support, the driving unit is used to control the axial rotation of the cantilever shaft around the support, and the cantilever shaft is mounted with a pushing piece capable of moving axially along the cantilever shaft; The rotation stroke of the cantilever shaft of the first material conveying mechanism includes a loading position away from the second material conveying mechanism and a pushing position toward the second material conveying mechanism; The rotational travel of the cantilever shaft of the second material conveying mechanism includes a material discharging position away from the first material conveying mechanism and a material receiving position capable of being connected with the cantilever shaft of the first material conveying mechanism located at the material pushing position.

2. The electrode coil and tab reversing device according to claim 1, characterized in that: The support column is rotatably mounted on a base, and the driving unit is mounted on the base for driving the support column to rotate; The cantilever shaft is fixedly mounted on the side of the support column.

3. The electrode coil and tab reversing device according to claim 2, characterized in that: The driving unit includes a motor 1, a gear and a closed-loop rack; The motor 1 is installed on the base and is used to drive the gear to rotate; The gear is meshed with the bottom of the closed-loop rack and is used to drive the closed-loop rack to rotate around the central axis of the closed-loop rack; The closed-loop rack is rotatably mounted on the bottom of the support column to drive the support column to rotate around the central axis of the support column.

4. The electrode coil and tab reversing device according to claim 3, characterized in that: The driving unit further comprises a connecting plate; The connecting plate is installed on the top of the closed-loop rack, and the cross section of the connecting plate covers the cross section of the closed-loop rack; The pillar is vertically arranged on the connecting plate, and the connecting plate is rotatably mounted on the base through a supporting member.

5. The electrode coil and tab reversing device according to claim 4, characterized in that: The support member includes a plurality of load-bearing wheels and guide wheels; The load-bearing wheels are distributed at the center of the bottom of the connecting plate and are used to support the weight of the connecting plate; The guide wheels are distributed on the outer ring of the bottom of the connecting plate and are used to guide the rotation of the connecting plate.

6. The electrode winding and tab reversing device according to claim 5, characterized in that: The base comprises a base bracket and a plurality of anchor bolts; The top of the base bracket contacts the bottom of each load-bearing wheel and the guide wheel, and is used to support the load-bearing wheel and the guide wheel; The anchor bolts are distributed at the bottom of the base bracket and are used to fix the base bracket to the ground.

7. The electrode coil and tab reversing device according to any one of claims 1 to 6, characterized in that: The pusher moves axially along the cantilever shaft through the second motor and the screw rod; The second motor is installed on the side of the pillar, the screw rod is connected to the output end of the second motor, and the extension direction of the screw rod is consistent with the extension direction of the cantilever shaft; The pusher is sleeved on the outer ring of the screw and is threadedly connected with the screw.

8. The electrode coil and tab reversing device according to claim 7, characterized in that: The pusher comprises a push rod and a slider nut which are fixedly connected; The slider nut is used to drive the push rod to move axially along the cantilever shaft; The push rod is used to push the electrode coil.

9. The electrode coil and tab reversing device according to claim 1, characterized in that: The free end of the cantilever shaft is provided with a telescopic pin, and the telescopic pin has a retracted position with the top end not higher than the top surface of the cantilever shaft and an extended position with the top end higher than the top surface of the cantilever shaft; When the cantilever shaft of the first material transmission mechanism is located at the loading position and the pushing position, the telescopic pin on the cantilever shaft is located at the retracted position; when the cantilever shaft of the first material transmission mechanism is located at any position other than the loading position and the pushing position, the telescopic pin on the cantilever shaft is located at the extended position; When the cantilever shaft of the first material transmission mechanism is located at the material unloading position and the material receiving position, the telescopic pin on the cantilever shaft is located at the retracted position; when the cantilever shaft of the first material transmission mechanism is located at a position other than the material unloading position and the material receiving position, the telescopic pin on the cantilever shaft is located at the extended position.

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