Modularized lamination belt pole piece conveying mechanism and conveying method thereof

Abstract

The invention relates to a modularized lamination belt pole piece conveying mechanism and a conveying method thereof, and relates to the field of lithium battery pole piece production and conveying. According to the mechanism, a plurality of machine tables are arranged on one side of a pole piece conveying mechanism in parallel, and a plurality of lamination belts and a plurality of machine tables are respectively arranged in series; a manipulator is arranged between each lamination belt and the machine table; the small pole pieces are conveyed in a small pole piece group above the lamination belt, and the small pole pieces in each group are arranged at equal intervals. The conveying method comprises the steps that when a current lamination belt conveys pole pieces, whether a next machine station needs materials is judged, if yes, the previous lamination belt stops taking the materials, and the next machine station normally takes the materials; and if the next machine station does not need materials, judging whether the previous machine station needs materials, and if the previous machine station needs materials, normally taking the materials until all the machine stations do not need materials. A traditional mode of taking the pole pieces at the tail of a second machine is changed into a mode of carrying and conveying the pole pieces in groups in batches, and the problems that belt gap-crossing conveying cannot be achieved, and materials are wasted due to tail buffering are solved.

Description

Technical Field

[0001] The invention belongs to the field of lithium battery pole piece production and transmission, and in particular relates to a modular stacked belt pole piece transmission mechanism and a transmission method thereof. Background Art

[0002] When the lithium battery industry improves production, when the belt line transmission efficiency is sufficient to meet the simultaneous operation of two or more stacking machines, a single belt line is required to be able to flexibly configure multiple stacking machines for simultaneous production. In order to have enough space for the design and assembly of multiple stacking machines and to facilitate the operation and maintenance of later debugging personnel, this invention patent modifies the traditional method of picking up the film at the end of the second machine into a method of small group batch handling and delivery of the pole pieces. The small group batch simulation procedure similar to the end-of-film picking is used to solve the problem that small-sized pole pieces cannot pass through the belt gap and the result that multiple stacking machines cannot compress the space of the material picking robot in order to ensure the end-of-film picking. At the same time, if the belt line efficiency is sufficient, more stacking machines can be added to expand production capacity, realize modular structural layout and maintenance management of the production line, ensure that the structural design is no longer limited by the size of the pole piece, and make the layout design of the machine more flexible.

[0003] Traditional stacked-ply belt conveyors have two modes: end-ply and direct crossing of the belt gap. The end-ply is connected by two belts. The first machine's material-picking position and the second belt's handling robot's material-picking position or the first machine's material-picking position and the second machine's material-discharging position are adjacent workstations. The handling robot picks and places the pole pieces, which ensures that the two machines can run at the same time or that a single machine can run independently without affecting each other. However, when the width of the pole piece produced is ≤50mm, the structural dimensions of the adjacent machines cannot meet the space design requirements for the end-ply even if they are compressed to the minimum. This will result in too many cached pole pieces from the first machine's material-picking position to the gap between the next belt. When the following machine stops, this part of the cached pole pieces cannot be used when the current machine continues to produce, resulting in material loss and product waste. Directly crossing the belt gap means that the pole piece can directly cross over two belt faults without going through an auxiliary handling structure for transition. However, this method cannot meet the needs of transferring small-sized pole pieces and is only suitable for products with a pole piece width of ≥100mm. This is because when small-sized pole pieces pass through the belt gap, the pole pieces will fall from the belt gap or accumulate and clog the belt gap.

[0004] Chinese patent CN118699460A Publication date: September 27, 2024 discloses a high-speed pole piece connection distance adjustment method and distance adjustment hot compound method, which completes the distance adjustment of the pole piece through the variable speed transmission of the distance adjustment roller on the same transport belt, solving the problem that the impurities of the pole piece after cutting cannot be effectively removed when the pole piece is cut by the flying cutting method, and the flying cutting method requires frequent movement and avoidance, while the equipment in the prior art cannot meet the distance adjustment consistency requirements. The invention provides ideas for pole piece transmission, but it still cannot solve the problem that small-sized pole pieces are difficult to pass through the belt gap and that the space of the material-taking robot cannot be compressed due to multiple stacking machines in order to ensure the end of the piece.

[0005] Chinese patent CN219497875U Publication date: April 4, 2023 discloses a pole piece positioning platform for a stacking machine, which absorbs the pole piece and transfers it to the pole piece workbench position through a transmission mechanism to achieve pole piece transfer, avoiding the low efficiency of robot stacking and the large space occupied. However, the cost of reassembling a set of stacking machine positioning platforms is high and is not suitable for ready-made pole piece transfer devices.

[0006] Therefore, how to solve the problem that small-sized pole pieces cannot be transported across the belt gap and the problem of wasted materials in the end buffer, and how to improve the flexibility of the spatial size design of multi-station machines, requires further research. Summary of the invention

[0007] The present invention modifies the traditional method of taking the film at the end of the second machine into a method of transporting and conveying the film in batches by small groups, and provides a modular laminated belt film conveying mechanism and a conveying method thereof, wherein the conveying mechanism includes a plurality of laminated belts, a plurality of manipulators, a control system, a position sensor, and a waste box;

[0008] A plurality of machines are arranged in parallel on one side of the pole piece conveying mechanism, and the plurality of lamination belts are respectively arranged in series with the plurality of machines and correspond to each other one by one;

[0009] A robot is provided between each of the laminated belts and the machine table;

[0010] The small pole pieces are conveyed in groups of small pole pieces above the lamination belt, and each group of small pole pieces are spaced at the same distance;

[0011] The control system is used to determine the number and arrangement of each group of pole pieces, control the stacking belt transmission, send the machine pole piece requirements and control the robot;

[0012] The position sensor is connected to the control system signal and is used to send the position information of the incoming pole piece to the control system;

[0013] The waste box is arranged at the end of the laminated belts connected in series.

[0014] Furthermore, the end of the first laminated belt is a material picking position for a transporting robot, and the corresponding positions of the front end and the end of the laminated belt connected in series behind the first laminated belt are provided with the material picking position for the transporting robot and the material placing position for the transporting robot; the machine material picking position of the multiple laminated belts is provided in front of the material picking position for the transporting robot, close to the material picking position for the transporting robot.

[0015] Furthermore, a plurality of small electrode sheets in each group of the small electrode sheets are neatly arranged at a certain interval; and the interval between adjacent groups of the small electrode sheets is set according to the interval between the material picking position of the machine and the material picking position of the robot.

[0016] Furthermore, the serially connected laminated belts and the number of machines are set according to production capacity requirements, and the material picking position of the robot above each laminated belt is consistent with the material placing position of the transporting robot.

[0017] A method for conveying a modular laminated belt pole piece conveying mechanism, comprising the following steps:

[0018] S1, the control system determines the number of small pole pieces in each group, the arrangement of small pole pieces in each group and the spacing between the small pole pieces in the whole group;

[0019] S2, the stacking belts transport small pole pieces in groups, and when the control system detects that the current stacking belt is transporting pole pieces, it determines whether the next machine needs materials, and if the next machine needs materials, the control system gives priority to the next machine to take materials;

[0020] S3, when the control system detects that the next machine does not need to feed materials, it determines whether the previous machine needs materials. If the previous machine needs materials, it controls the previous machine to take materials normally. If the previous machine does not need materials, it repeatedly determines whether the machine in front needs materials.

[0021] S4, until the control system detects that the first machine does not need material, then all machines are controlled to pause.

[0022] Specifically, step S1 includes:

[0023] The control system determines the number of small pole pieces in each group and the horizontal spacing and number of rows and columns between small pole pieces in each column in each group according to the production capacity of the machine;

[0024] The horizontal spacing between the small pieces is set as the small spacing parameter of the stacked piece belt transport;

[0025] The distance between the machine material picking position and the robot material picking position is set to the maximum spacing parameter of the stacked belt transport.

[0026] Specifically, step S2 includes the following steps:

[0027] S21, when the control system detects that the next machine needs materials, the handling robot moves the entire set of pole pieces from the previous lamination belt to the next lamination belt, and the previous lamination belt and the next lamination belt both have a large spacing, and repeat the handling and transmission;

[0028] S22, until the position sensor determines that there is a group of small pole pieces at the next machine taking position, the control system controls the next machine to take a row of small pole pieces, and after taking them, the next lamination belt moves a small spacing, and repeats taking and conveying;

[0029] S23, until the control system detects that the group of small pole pieces have been taken out, the next lamination belt continues to move at a larger pitch, and step S22 is repeated until the next machine does not need material.

[0030] Specifically, step S3 includes the following steps:

[0031] S31, when the control system detects that the next machine does not need material, and the position sensor determines that there is a group of small pole pieces at the material taking position of the previous machine, the control system controls the previous machine to take a row of small pole pieces, and after taking them, the previous stacking belt moves with a small pitch, and repeatedly takes and conveys them;

[0032] S32, until the control system detects that the group of small pole pieces have been taken out, the previous lamination belt (1) continues to move at a larger pitch, and repeats step S31 until the previous machine station does not need material.

[0033] Furthermore, when the number of feeding groups required by the next machine exceeds the number of groups transported by the next stacking belt, after the feeding on the next machine is completed, the two adjacent stacking belts maintain a large spacing and continue to feed and convey until the position sensor determines that there is a group of small pole pieces at the next machine's material taking position.

[0034] Furthermore, unqualified electrodes on the belt will flow into the waste box at the end of the belt, and the machine will only take qualified electrodes on the stacking belt.

[0035] Compared with the prior art, the advantages and effects of the technical solution of this application are as follows:

[0036] 1. The present invention provides a modular stacked-belt pole piece conveying mechanism, which combines small-sized battery cells into a whole, and treats the entire group of pole pieces as one pole piece, and transports it to the next workstation through the idea of ​​last-position pole piece retrieval, and a robot working space is reserved between each group of pole pieces, which not only ensures that the pole pieces are not wasted when the current belt is working, but also ensures that the pole piece information is accurately transmitted without confusion, and solves the problem that small-sized pole pieces cannot be transmitted by crossing the belt gap, and the space size factors of the machine design cannot meet the requirements of last-position pole piece retrieval.

[0037] 2. This method provides a modular stacked belt pole piece conveying mechanism, which can increase or decrease the number of series belt machines according to production capacity requirements, realize modular structural layout and maintenance management of the production line, ensure that the structural design is no longer limited by the size of the pole piece, and make the layout design of the machine more flexible.

[0038] 3. The transmission method of a modular stacked belt pole piece transmission mechanism of the present invention realizes the modular structural layout and operation and maintenance management of the production line. It can not only utilize the existing facilities to realize the transmission and retrieval of small pole pieces, but also save costs and ensure that the structural design is no longer limited by the size of the pole pieces, making the layout design of the machine more flexible.

[0039] The above is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application so that it can be implemented in accordance with the contents of the specification, and to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the following is a detailed description of the preferred embodiments of the present application in conjunction with the accompanying drawings as follows.

[0040] Based on the detailed description of the specific embodiments of the present application in combination with the accompanying drawings below, those skilled in the art will become more aware of the above and other objects, advantages and features of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can also be obtained based on these drawings without creative work. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0042] Figure 1 is a schematic diagram of a modular laminated belt pole piece conveying mechanism according to one embodiment of the present invention;

[0043] Figure 2 It is a flow chart of a conveying method of a modular laminated belt pole piece conveying mechanism according to one embodiment of the present invention;

[0044] Figure numerals: 1. Laminated belt; 2. Material picking position of transport robot; 3. Material placing position of transport robot; 4. Material picking position of machine. DETAILED DESCRIPTION

[0045] To make the purpose, technical scheme and advantages of the embodiment of the present application clearer, the technical scheme in the embodiment of the present application will be clearly and completely described below in conjunction with the drawings in the embodiment of the present application. Obviously, the described embodiment is a part of the embodiment of the present application, rather than all the embodiments. In the following description, specific details such as specific configurations and components are provided only to help fully understand the embodiments of the present application. Therefore, it should be clear to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present application. In addition, for clarity and brevity, the description of known functions and structures is omitted in the embodiment. It should be understood that "one embodiment" or "this embodiment" mentioned throughout the specification means that the specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, "one embodiment" or "this embodiment" appearing in various places throughout the specification may not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner.

[0046] In addition, the present application may repeat reference numerals and / or letters in different examples. This repetition is for the purpose of simplicity and clarity, and does not in itself indicate the relationship between the various embodiments and / or settings discussed.

[0047] The term "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, B exists alone, and A and B exist at the same time. The term " / and" in this article describes another type of association relationship between associated objects, indicating that there can be two relationships. For example, A / and B can mean: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0048] It should also be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusions.

[0049] Example 1

[0050] like Figure 1 As shown, this embodiment provides a modular laminated belt pole piece conveying mechanism, the modular laminated belt pole piece conveying mechanism includes a plurality of laminated belts 1, a plurality of manipulators, a control system, a position sensor, and a waste box;

[0051] A plurality of machines are arranged in parallel on one side of the pole piece conveying mechanism, and the plurality of lamination belts 1 are arranged in series with the plurality of machines, respectively, and correspond one to one;

[0052] A robot is provided between each of the laminated belts 1 and the machine table;

[0053] The small pole pieces are conveyed in groups of small pole pieces above the lamination belt 1, and each group of small pole pieces is spaced at the same distance;

[0054] Optionally, eight small pole pieces are grouped as a group and transmitted as a whole in the form of two rows and four columns;

[0055] The control system is used to determine the number and arrangement of each group of pole pieces, control the transmission of the stacking belt 1, send the machine pole piece requirements and control the robot;

[0056] The position sensor is connected to the control system signal and is used to send the position information of the incoming pole piece to the control system;

[0057] The waste box is arranged at the end of the laminated belts 1 connected in series.

[0058] Furthermore, the end of the first laminated belt 1 is a material picking position 2 for a transporting robot, and the front ends and corresponding positions of the second laminated belt 1 and the third laminated belt 1 connected in series behind the first laminated belt 1 are provided with the material picking position 2 for a transporting robot and the material placing position 3 for a transporting robot; the machine material picking position 4 of the three laminated belts 1 is arranged in front of the material picking position 2 for a transporting robot, close to the material picking position 2 for a transporting robot.

[0059] Furthermore, the position sensor is used to infer and detect the position of incoming electrode materials based on the distance between the machine material picking position 4 and the robot material picking position 2; the number of electrode pieces in each group determined by the control system is set according to the production capacity of the multiple machines.

[0060] Furthermore, the plurality of small pole pieces in each group of the small pole pieces are neatly arranged according to a certain row and column spacing;

[0061] The spacing between adjacent groups of the small pole pieces is set according to the spacing between the machine material taking position 4 and the robot material taking position.

[0062] The serially laminated belt 1 and the number of machines are set according to production capacity requirements;

[0063] The material taking position of the manipulator above each laminated belt 1 is consistent with the material taking position 3 of the transporting manipulator.

[0064] Technical effect of this embodiment: This embodiment adopts the method of batch transport and transfer of pole pieces by small groups, which can solve the problem that small-sized pole pieces cannot pass through the belt gap and the problem that multiple stacking machines cannot compress the space of the material-taking robot in order to ensure the last pole piece is taken.

[0065] Example 2

[0066] like Figure 2 As shown, this embodiment relates to a specific transmission method of the modular laminated belt pole piece transmission mechanism in the above embodiment, comprising the following steps:

[0067] S1. The control system determines the number of small pole pieces in each group and the horizontal spacing and number of rows and columns between small pole pieces in each column in each group according to the production capacity of the machine; the number of rows and columns of small pole pieces in each group should be set to ensure that there are small pole pieces in each row and column as much as possible.

[0068] The horizontal spacing between the small pieces is set as the small spacing parameter of the stacking belt 1 for transportation;

[0069] The distance between the machine material taking position 4 and the manipulator material taking position is set to the maximum distance parameter of the laminated belt 1 transportation;

[0070] S2, when the control system detects that the next machine needs materials, the handling robot moves the entire set of pole pieces from the previous lamination belt 1 to the next lamination belt 1, and the previous lamination belt 1 and the next lamination belt 1 are both moved at a large spacing, and are repeatedly handled and conveyed;

[0071] Until the position sensor determines that there is a group of small pole pieces at the next machine taking position 4, the control system controls the next machine to take a row of small pole pieces, and after taking them, the next lamination belt 1 moves a small spacing, and repeats taking and conveying the pieces;

[0072] Until the group of small pole pieces are taken out, the next lamination belt 1 continues to move at a larger pitch, and step S22 is repeated until the next machine station does not need material.

[0073] S3, when the control system detects that the next machine does not need material, and the position sensor determines that there is a group of small pole pieces at the material taking position 4 of the previous machine, the control system controls the previous machine to take a row of small pole pieces, and after taking them, the previous stacking belt 1 moves with a small pitch, and repeats taking and conveying;

[0074] S32, until the group of small pole pieces are taken out, the previous lamination belt 1 continues to move at a larger pitch, and step S31 is repeated until the previous machine station does not need material.

[0075] Furthermore, when the number of feeding groups required by the next machine exceeds the number of transporting groups of the next stacking belt 1, after the feeding on the next machine is finished, the two adjacent stacking belts 1 maintain a large spacing and continue to feed and convey until the position sensor determines that there is a group of small pole pieces at the next machine's material taking position 4.

[0076] Furthermore, unqualified electrodes on the belt will flow into the waste box at the end of the belt, and the machine will only take qualified electrodes on the stacking belt 1.

[0077] Technical effect of this embodiment: This embodiment is a specific conveying method of a modular stacked belt pole piece conveying mechanism, which can effectively solve the problem that small-sized pole pieces cannot be transported across the belt gap and the material is wasted in the end buffer, thereby avoiding material loss and product waste.

[0078] Example 3

[0079] This embodiment relates to a method for conveying a modular laminated belt pole piece conveying mechanism in the above embodiment, comprising the following steps:

[0080] S1. Determine that 8 small pole pieces are arranged in two rows and four columns as a whole group of pole pieces, each small pole piece is 20 mm wide, and the horizontal spacing of each column of small pole pieces is 10 mm. The horizontal spacing between the small pole pieces is set as the small spacing parameter for the stacking belt 1 transportation. The spacing of 250 mm from the first column of pole pieces of the first group of pole pieces of two adjacent groups of pole pieces to the first column of pole pieces of the second group of pole pieces is set as the large spacing parameter for the stacking belt 1 transportation. Four groups of small pole pieces can be fully placed on the second and third stacking belts.

[0081] S2, the whole group of small pole pieces are grouped and transported. When the first stacking belt 1 transports pole pieces, it is determined whether the second machine needs materials. If the second machine needs materials, the first stacking belt 1 will stop taking materials, and the handling robot will transport the whole group of pole pieces to the second stacking belt 1. It is determined whether the third machine needs materials. If the third machine needs materials, the second stacking belt 1 will stop taking materials, and the handling robot will transport the whole group of pole pieces to the third stacking belt 1. The third machine takes the first row of small pole pieces, and the third stacking belt moves three times with small spacing. The third machine takes one row at a time to complete a group of pole pieces.

[0082] S3. If the third machine does not need to feed materials, the second laminated belt 1 will move with a small pitch and take materials normally. If the second machine does not need to feed materials, it is determined whether the first machine needs materials. If the first machine needs materials, the first machine will take materials normally. If the first machine does not need materials, all machines will be paused.

[0083] Furthermore, when the number of feeding groups required by the second machine exceeds the number of transporting groups of the second stacking belt 1, after the feeding on the second machine is finished, the adjacent first and second stacking belts 1 maintain a large spacing and continue to feed and convey materials until the positioning system determines that there is a group of small pole pieces at the second machine's material taking position 4.

[0084] Technical effect of this embodiment: In this embodiment, when the belt line efficiency is sufficient, more stacking machines can be added to expand the production capacity, realize the modular structural layout and maintenance management of the production line, make the layout design of the machine more flexible, and can convey small pole pieces with a pole piece width of ≤50mm.

[0085] The above description is only the preferred embodiment of the present invention, which does not limit the protection scope of the present invention. For those skilled in the art, the present invention can be modified and varied in various ways. Within the spirit and principle of the present invention, any change, modification, replacement, integration and parameter change of these embodiments by conventional substitution or capable of achieving the same function without departing from the principle and spirit of the present invention shall fall within the protection scope of the present invention.

Claims

1. A modular laminated belt pole piece transmission mechanism, characterized in that: It comprises a plurality of laminated belts (1), a plurality of manipulators, a control system, a position sensor, and a waste box; A plurality of machines are arranged in parallel on one side of the pole piece conveying mechanism, and the plurality of lamination belts (1) are respectively arranged in series with the plurality of machines and correspond to each other one by one; A robot is provided between each of the laminated belts (1) and the machine platform; The small pole pieces are conveyed in groups of small pole pieces above the lamination belt (1), and each group of small pole pieces is spaced at the same distance; The control system is used to determine the number and arrangement of each group of pole pieces, control the transmission of the stacking belt (1), send the machine pole piece requirements and control the robot; The position sensor is connected to the control system signal and is used to send the position information of the incoming pole piece to the control system; The waste box is arranged at the end of the laminated belts (1) connected in series.

2. A modular laminated belt pole piece conveying mechanism according to claim 1, characterized in that: The end of the first laminated belt (1) is a material picking position (2) for a handling robot, and the front end and the end of the laminated belt (1) connected in series behind the first laminated belt (1) are provided with the material picking position (2) for a handling robot and the material placing position (3) for a handling robot; the machine material picking position (4) of the plurality of laminated belts (1) is provided in front of the material picking position (2) for a handling robot, close to the material picking position (2) for a handling robot.

3. A modular laminated belt pole piece conveying mechanism according to claim 2, characterized in that: Multiple small pole pieces in each group of small pole pieces are neatly arranged according to a certain row and column spacing; The spacing between adjacent groups of small pole pieces is set according to the spacing between the machine material taking position (4) and the robot material taking position.

4. A modular laminated belt pole piece conveying mechanism according to claim 3, characterized in that: The serially stacked belt (1) and the number of machines are set according to production capacity requirements; The material taking position of the manipulator above each laminated belt (1) is consistent with the material taking position (3) of the transporting manipulator.

5. A method for conveying a modular laminated belt pole piece conveying mechanism as claimed in any one of claims 1 to 4, characterized in that: The following steps are involved: S1, the control system determines the number of small pole pieces in each group, the arrangement of small pole pieces in each group and the spacing between the small pole pieces in the whole group; S2, the stacking belt (1) transmits small pole pieces in groups, and when the control system detects that the current stacking belt (1) is transporting pole pieces, it determines whether the next machine needs materials, and if the next machine needs materials, controls the next machine to take materials first; S3, when the control system detects that the next machine does not need to feed materials, it determines whether the previous machine needs materials. If the previous machine needs materials, it controls the previous machine to take materials normally. If the previous machine does not need materials, it repeatedly determines whether the machine in front needs materials. S4, until the control system detects that the first machine does not need material, then all machines are controlled to pause.

6. A method for conveying a modular laminated belt pole piece conveying mechanism according to claim 5, characterized in that: The step S1 comprises: The control system determines the number of small pole pieces in each group and the horizontal spacing and number of rows and columns between small pole pieces in each column in each group according to the production capacity of the machine; The horizontal spacing between the small pieces is set as the small spacing parameter of the stacking belt (1); The distance between the machine material taking position (4) and the robot material taking position is set to the maximum distance parameter of the stacked belt (1) transportation.

7. A method for conveying a modular laminated belt pole piece conveying mechanism according to claim 6, characterized in that: The step S2 is specifically as follows: S21, when the control system detects that the next machine needs materials, the handling robot moves the entire set of pole pieces from the previous lamination belt (1) to the next lamination belt (1), and the previous lamination belt (1) and the next lamination belt (1) both move at a large distance, and repeat the handling and transmission; S22, until the position sensor determines that there is a group of small pole pieces at the next machine pick-up position (4), the control system controls the next machine to pick up a row of small pole pieces, and after picking up, the next lamination belt (1) moves a small spacing, and repeats picking up and conveying; S23, until the control system detects that the group of small pole pieces has been taken out, the next lamination belt (1) continues to move at a larger pitch, and step S22 is repeated until the next machine does not need material.

8. A method for conveying a modular laminated belt pole piece conveying mechanism according to claim 7, characterized in that: The step S3 is specifically as follows: S31, when the control system detects that the next machine does not need material, and the position sensor determines that there is a group of small pole pieces at the material taking position (4) of the previous machine, the control system controls the previous machine to take a row of small pole pieces, and after taking them, the previous stacking belt (1) moves with a small pitch, and repeatedly takes and conveys the pieces; S32, until the control system detects that the group of small pole pieces have been taken out, the previous lamination belt (1) continues to move at a larger pitch, and repeats step S31 until the previous machine station does not need material.

9. A method for conveying a modular laminated belt pole piece conveying mechanism according to any one of claims 6 to 8, characterized in that: When the number of material groups required by the next machine exceeds the number of material groups transported by the next lamination belt (1), after the material above the next machine is completely taken, the two adjacent lamination belts (1) maintain a large spacing and continue to feed and convey the material until the position sensor determines that there is a group of small pole pieces at the material taking position (4) of the next machine.

10. A method for conveying a modular laminated belt pole piece conveying mechanism according to any one of claims 6 to 8, characterized in that: Unqualified electrodes on the belt will flow into the waste box at the end of the belt, and the machine will only take qualified electrodes on the stacking belt (1).

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