High-speed stacking device, stacking production line and stacking process

Abstract

Disclosed in the present invention are a high-speed stacking device, a stacking production line and a stacking process. The high-speed stacking device comprises a feeding assembly, a conveying assembly, a positioning assembly and a stacking station, the conveying assembly comprising a rotary table and a plurality of manipulators arranged on the rotary table, the manipulators being used for picking up and conveying electrode sheets, and the rotary table being used for controlling the manipulators to switch between the feeding assembly, the positioning assembly and the stacking station. The stacking production line comprises the high-speed stacking device. The stacking process is executed by the high-speed stacking device or the stacking production line, and comprises the following steps: S1, feeding electrode sheets; S2, positioning the electrode sheets; S3, secondary feeding of the electrode sheets; S4, stacking; S5, stacking calibration; and S6, unloading. The present invention has the advantages of low device cost and reduced occupied space, can reduce personnel cost, and also can achieve uniform and consistent stacking without the need for operator supervision.

Description

High-speed lamination equipment, lamination production line and lamination process Technical Field

[0001] The present invention relates to the technical field of lithium battery production, and in particular to high-speed lamination equipment, a lamination production line and a lamination process. Background Art

[0002] Existing stacking machines usually adopt a linear motion layout, with stacking arms placed on both sides of the stacking table. The stacking arms perform linear reciprocating motion to stack the positive and negative electrode materials according to predetermined specifications and sequence, or they perform three-dimensional fan-shaped swinging on both sides of the stacking table to stack the sheets. However, both methods have different drawbacks:

[0003] (1) The disadvantage of the lamination machine's linear reciprocating motion lamination is that it has a limited scope of application. It is usually only suitable for lamination of electrode materials of smaller sizes. For larger or special-shaped electrode materials, it may not be able to meet the lamination requirements. In addition, this lamination method has high requirements on the accuracy of the lamination machine and the electrode material. If the electrode material is deformed, it may cause uneven lamination, which will affect the performance and consistency of the battery.

[0004] (2) The disadvantage of the three-dimensional fan-shaped swing stacking on both sides of the stacking table is that it has a complex equipment structure and control system, which increases the manufacturing and maintenance costs of the equipment. During the stacking process, the movement trajectory and speed of the swing arm need to be accurately controlled to ensure the uniform stacking of the electrode material. The operators need to be specially trained, and continuous monitoring and adjustment are required during the operation to avoid uneven or inconsistent stacking. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, the present invention provides a high-speed stacking equipment, a stacking production line and a stacking process. The high-speed stacking equipment is provided with a turntable to control a robot to switch between a feeding assembly, a positioning assembly and a stacking table. The stacking production line includes the high-speed stacking equipment. The stacking process is performed using the high-speed stacking equipment or the stacking production line, which has the advantages of low equipment cost and small footprint. At the same time, it can also save personnel costs and achieve uniformity and consistency of stacking without the need for operator monitoring.

[0006] The technical solution adopted by the present invention to solve its technical problem is:

[0007] A high-speed stacking equipment, characterized in that it includes a feeding assembly, a conveying assembly, a positioning assembly and a stacking table, the feeding assembly includes a linear loading module with two movers, one of the movers of the linear loading module is used to convey the positive electrode sheet, and the other mover of the linear loading module is used to convey the negative electrode sheet, the conveying assembly includes a turntable and a plurality of manipulators arranged on the turntable, the manipulators are used to pick up and convey the electrode sheets, the turntable is used to control the manipulators to switch between the feeding assembly, the positioning assembly and the stacking table, the positioning assembly is used to position and correct the electrode sheets, the stacking table is used to perform stacking work, the positioning assembly includes a positive electrode sheet positioning assembly and a negative electrode sheet positioning assembly symmetrically arranged with the turntable as the center, the feeding assembly, the positive electrode sheet positioning assembly, the stacking table, and the negative electrode sheet positioning assembly are distributed in a ring shape with the conveying assembly as the center.

[0008] Furthermore, a first lifting device is provided on the turntable, which is used to control the lifting and lowering of the manipulator. The manipulator lifting device is a motor screw assembly. The manipulator is connected to the screw in the motor screw assembly. The manipulator is provided with several vacuum adsorption holes for adsorbing the pole pieces.

[0009] Furthermore, the positioning component includes a positioning platform, a first camera component arranged above the positioning platform, and an adjustment component arranged below the positioning platform. When the manipulator places the pole piece on the positioning platform, the first camera component takes a picture of the pole piece on the positioning platform, and the adjustment component calibrates the position of the positioning platform.

[0010] Furthermore, the lamination table includes a lamination base plate, and two groups of pressure claw assemblies are symmetrically arranged with the lamination base plate as the center. The pressure claw assembly includes a second lifting device, a first lateral moving device arranged at the output end of the second lifting device, and a pressure claw arranged at the output end of the first lateral moving device. The two groups of pressure claw assemblies work alternately to press the pole pieces on the lamination base plate.

[0011] Furthermore, two groups of second camera assemblies symmetrically centered on the stacking base are provided above the stacking table. The second camera assemblies cooperate with the pressure claw assemblies to detect the margins of the positive and negative electrodes on the stacking base.

[0012] Furthermore, it also includes a swing roller assembly, which is used to guide the direction of the diaphragm to achieve lamination. The swing roller assembly includes a swing roller base plate, a swing roller frame, a swing roller arranged on the swing roller frame, and a swing roller driving device for controlling the position of the swing roller. The lamination platform is arranged on the swing roller base plate, and the swing roller frame is rotatably arranged at both ends of the lamination platform. The swing roller driving device has dual output ends, and the output ends of the two swing roller driving devices are respectively connected to connecting rods through eccentric wheels, and the end of the connecting rod away from the eccentric wheel is connected to the swing roller frame.

[0013] Furthermore, both ends of the linear loading module are provided with a sheet picking device, the sheet picking device includes a sheet picking mechanism, a rotating mechanism for controlling the rotation of the sheet picking mechanism and a third lifting mechanism for controlling the lifting and lowering of the sheet picking mechanism, the sheet picking mechanism includes a sheet picking assembly and a sheet picking assembly, the sheet picking assembly includes a support plate and a folding assembly arranged on the support plate, the sheet picking assembly is arranged on both sides of the support plate and the sheet picking assemblies on both sides are movably connected to the folding assembly respectively, and also includes a cam structure for limiting the movement of the sheet picking assembly.

[0014] Furthermore, the film picking assembly includes a film picking plate and a plurality of vacuum suction cups evenly distributed on the film picking plate, the cam structure includes a limiting plate with a limiting groove and a movable plate with a protruding structure, the limiting plate is arranged on the support plate, the movable plate is fixed on the film picking plate, the protruding structure is confined in the limiting groove, the folding assembly includes a folding drive device and a folding plate connected to the output end of the folding drive device, a rotating shaft is provided on the folding plate, a fixed plate is provided on the film picking plate, and the fixed plate is connected to the rotating shaft through a swing arm.

[0015] The present invention also provides a lamination production line, comprising the high-speed lamination equipment as described above.

[0016] The present invention further provides a lamination process, wherein the lamination process uses the high-speed lamination equipment described above to laminate the electrode sheets or uses the lamination production line described above to laminate the electrode sheets, and comprises the following steps:

[0017] S1, electrode loading; the linear feeding module transports the positive / negative electrode to the middle part, the turntable controls the manipulator to rotate to the upper middle part of the linear feeding module, and the first lifting device controls the manipulator to descend, pick up the electrode, and then rise;

[0018] S2, pole piece positioning; control the turntable to rotate, drive the manipulator that picks up the pole piece to rotate to the positioning assembly and place the pole piece on the positioning table, use the first camera assembly to take pictures to detect whether the position of the pole piece is accurate, and cooperate with the adjustment assembly to adjust the positioning table;

[0019] S3, secondary loading of the electrode; the robot picks up the electrode after positioning and adjustment on the positioning table;

[0020] S4, lamination; the swing roller assembly guides the diaphragm in a Z-shaped direction, the robot places the pole piece on the lamination table, and the pressing claw assembly cooperates to press the pole piece against the lamination bottom plate;

[0021] S5, lamination calibration: the pressure claw assembly and the second camera assembly cooperate to record the distance change of the positive and negative electrode sheets to determine whether they meet the production requirements;

[0022] S6, unloading: unloading the battery cells that have completed the stacking work.

[0023] The beneficial effects of the present invention are:

[0024] The present invention provides a high-speed lamination device, a lamination production line and a lamination process. The high-speed lamination device is provided with a turntable to control a robot to switch between a feeding component, a positioning component and a lamination table. The lamination production line includes the high-speed lamination device. The lamination process is performed using the high-speed lamination device or the lamination production line, which has the advantages of low equipment cost and small footprint. At the same time, it can also save personnel costs and achieve uniformity and consistency of lamination without the need for operator supervision. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below with reference to the accompanying drawings and examples.

[0026] FIG1 is a schematic diagram of a lamination device according to the present invention;

[0027] FIG2 is a schematic diagram of the lamination device according to the present invention from another angle;

[0028] FIG3 is a schematic diagram of a transport assembly according to the present invention;

[0029] FIG4 is a schematic diagram of a linear feeding module according to the present invention;

[0030] FIG5 is a schematic diagram of a piece-by-piece material taking device according to the present invention;

[0031] FIG6 is a schematic diagram of a partial structure of a piece-by-piece material taking device according to the present invention;

[0032] FIG7 is a schematic diagram of a partial structure of a piece-by-piece material taking device according to the present invention;

[0033] FIG8 is a schematic diagram of a partial structure of a piece-by-piece material taking device according to the present invention;

[0034] FIG9 is a schematic diagram of the manipulator of the present invention;

[0035] FIG10 is a schematic diagram of a positioning assembly in the present invention;

[0036] FIG11 is a schematic diagram of a lamination table according to the present invention;

[0037] FIG12 is a schematic diagram of another angle of the lamination table of the present invention;

[0038] FIG13 is a schematic diagram of the swing roller assembly of the present invention;

[0039] Description of reference numerals:

[0040] 1. Feeding assembly; 5. Transport assembly; 2. Positive electrode positioning assembly; 3. Negative electrode positioning assembly; 4. Stacking table; 10. Linear feeding module; 11. Movers; 110. Feeding suction cup; 70. Third lifting mechanism; 71. Rotating mechanism; 72. Retrieving mechanism; 34. Support plate; 33. Folding assembly; 30. Retrieving plate; 31. Vacuum suction cup; 330. Folding drive device; 331. Folding plate; 332. Rotating shaft; 333. Fixed plate; 334. Swing arm; 353. Limiting groove; 352. Limiting plate; 350. Moving plate; 351. Protruding structure; 54. Turntable; 503. Screw motor; 504. Synchronous wheel assembly; 505. Screw; 506. Pulley; 502. Connecting plate; 501, material picking arm; 60, first camera assembly; 20, positioning platform; 22, positioning suction cup; 21, adjustment assembly; 460, laminated base plate; 61, second camera assembly; 461, first motor; 4610, first lifting platform; 4620, first transmission belt; 462, first driving device; 4621, first connecting block; 4622, second connecting block; 4623, first pressure claw; 4624, second pressure claw; 465, fourth lifting device; 40, swing roller base plate; 44, swing roller frame; 45, swing roller; 41, swing roller driving device; 42, eccentric wheel; 43, connecting rod; 50, first manipulator; 51, second manipulator; 52, third manipulator; 53, fourth manipulator. Implementation Method

[0041] The following will clearly and completely describe the concept, specific structure and technical effects of the present invention in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention. In addition, all the connection / connection relationships involved in the patent do not refer to the direct connection of components, but refer to the fact that a better connection structure can be formed by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the present invention can be combined interchangeably without conflicting with each other.

[0042] 1 to 13 , the present invention provides a high-speed lamination device, comprising a feeding assembly 1, a conveying assembly 5, a positioning assembly, and a lamination table 4, wherein the positioning assembly comprises a positive electrode sheet positioning assembly 2 and a negative electrode sheet positioning assembly 3, and the feeding assembly 1, the positive electrode sheet positioning assembly 2, the lamination table 4, and the negative electrode sheet positioning assembly 3 are distributed in a ring shape with the conveying assembly 5 as the center.

[0043] The feeding assembly 1 includes a linear feeding module 10 with a double mover 11. One of the movers 11 of the linear feeding module 10 is used to convey the positive electrode sheet, and the other mover 11 of the linear feeding module 10 is used to convey the negative electrode sheet. Specifically, the mover 11 is connected to a feeding jig, and the feeding jig is provided with a plurality of feeding suction cups 110. When the electrode sheet is placed on the feeding jig, the feeding suction cup 110 can adsorb and fix the electrode sheet.

[0044] Both ends of the linear loading module 10 are provided with a sheet picking device, and the sheet picking device includes a sheet picking mechanism 72, a rotating mechanism 71 for controlling the rotation of the sheet picking mechanism 72, and a third lifting mechanism 70 for controlling the lifting and lowering of the sheet picking mechanism 72. The sheet picking mechanism 72 includes a sheet picking assembly and a sheet picking assembly. The sheet picking assembly includes a support plate 34 and a folding assembly 33 provided on the support plate 34. The sheet picking assembly is provided on both sides of the support plate 34, and the sheet picking assemblies on both sides are movably connected to the folding assembly 33 respectively, and also includes a cam structure for limiting the movement of the sheet picking assembly.

[0045] The film picking assembly includes a film picking plate 30 and a plurality of vacuum suction cups 31 evenly distributed on the film picking plate 30. The cam structure includes a limiting plate 352 with a limiting groove 353 and a movable plate 350 with a protruding structure 351. The limiting plate 352 is arranged on the support plate 34. The movable plate 350 is fixed on the film picking plate 30. The protruding structure 351 is confined in the limiting groove 353. The folding assembly 33 includes a folding drive device 330 and a folding plate 331 connected to the output end of the folding drive device 330. A rotating shaft 332 is provided on the folding plate 331. A fixed plate 333 is provided on the film picking plate 30. The fixed plate 333 is connected to the rotating shaft 332 through a swing arm 334.

[0046] When the folding drive device 330 drives the folding plate 331 to move, it drives the film-taking plate 30 to move. The protruding structure 351 will slide along the limiting groove 353. The limiting groove 353 can guide and limit the movement of the film-taking plate 30, so that the two sides of the pole piece become arc-shaped during the slicing process, achieving the slicing effect without damaging the edge of the pole piece. At the same time, it can also improve the efficiency of slicing and save time costs.

[0047] For the convenience of description, the first end of the linear loading module 10 is set as the positive electrode sheet loading end, and the mover 11 for conveying the positive electrode sheet is set as the first mover 11. The other end of the linear loading module 10 is set as the negative electrode sheet loading end, and the mover 11 for conveying the negative electrode sheet is set as the second mover 11. When it is necessary to load the positive electrode sheet, the sheet-splitting and picking device at the positive electrode sheet loading end picks up the positive electrode sheet and places it on the first mover 11 on the linear loading module 10. The first mover 11 carries the positive electrode sheet to the middle of the linear loading module 10. After the positive electrode sheet is taken away by the conveying assembly 5, the negative electrode sheet loading action is performed. Since the loading action of the negative electrode sheet is the same as that of the positive electrode sheet, it will not be described in detail.

[0048] The transport assembly 5 includes a turntable 54 and a plurality of manipulators provided on the turntable 54. The manipulators are used to pick up and transport the pole pieces. The turntable 54 is used to control the manipulators to switch between the feeding assembly 1, the positioning assembly, and the laminating table 4. Specifically, a first lifting device is provided on the turntable 54. The first lifting device includes a screw motor 503, a screw 505, and a pulley 506 provided on the screw 505. The output end of the screw motor 503 is connected to the screw 505 via a synchronous wheel assembly 504. The manipulator includes a material picking arm 501 and a connecting plate 502 connected to the material picking arm 501. The connecting plate 502 is connected to the pulley 506. The first lifting device is used to control the lifting and lowering of the manipulator. The manipulator is provided with a plurality of vacuum adsorption holes for adsorbing the pole pieces.

[0049] The positioning assembly is used to position and correct the electrode. By controlling the direction of rotation of the turntable 54, the positive or negative electrode can be grasped accordingly. The positive electrode positioning assembly 2 has the same structure as the negative electrode positioning assembly 3. The positive electrode positioning assembly 2 is described as an example. The positive electrode positioning assembly 2 includes a positioning platform 20, a first camera assembly 60 arranged above the positioning platform 20, and an adjustment assembly 21 arranged below the positioning platform 20. The positioning platform 20 is provided with a plurality of positioning suction cups 22 for adsorbing the electrode to ensure that the position of the electrode does not shift during the positioning process. When the manipulator places the electrode on the positioning platform 20, the first camera assembly 60 takes a picture of the electrode on the positioning platform, and the adjustment assembly 21 calibrates the position of the positioning platform 20. The first camera assembly 60 includes four cameras. The positioning platform 20 is configured as a rectangular structure. The four cameras correspond to the four corners of the positioning platform 20. When the pole piece is placed on the positioning platform 20, the four cameras can capture the four corners of the pole piece and compare them with the preset positions. If the position of the pole piece is found to be offset, the adjustment assembly 21 is controlled to adjust the position of the positioning platform 20. In this embodiment, the adjustment assembly 21 includes an XYR positioning platform. Since the XYR platform is a relatively mature technology in the industry, it will not be described in detail here.

[0050] The stacking platform 4 includes a stacking base plate 460. In order to cooperate with the robot to perform stacking work, the stacking platform 4 needs to be lowered by one pole piece each time stacking is performed. Therefore, a fourth lifting device 465 is provided below the stacking base plate 460. The output end of the fourth lifting device 465 is connected to the stacking base plate 460 for controlling the vertical height of the stacking base plate 460.

[0051] Furthermore, two groups of pressure claw assemblies are symmetrically arranged with the laminated base plate 460 as the center, and the pressure claw assemblies include a second lifting device, a first lateral moving device arranged at the output end of the second lifting device, and a pressure claw arranged at the output end of the first lateral moving device. The two groups of pressure claw assemblies work alternately to press the pole pieces on the laminated base plate 460.

[0052] Here, the pressure claw assembly on one side of the stacking platform 4 is taken as an example for explanation. Each group of the pressure claw assembly includes two pressure claws located at both ends of the stacking platform 4. The two pressure claws are arranged on the same side of the stacking platform 4 and are used to press the two ends of the same side of the stacking platform 4. The first lifting device includes a first motor 461, the output end of which is connected to a first lifting platform 4610. The first transverse moving device is disposed on the first lifting platform 4610. In this embodiment, the first transverse moving device includes an annular first transmission belt 4620 and a first driving device 462 for driving the first transmission belt 4620. The first transmission belt 4620 includes two layers with parallel and opposite movement directions. One layer is connected to the pressing claw at one end of the laminating platform 4 via a first connecting block 4621, and the other layer is connected to the pressing claw at the other end of the laminating platform 4 via a second connecting block 4622. The pressing claws at both ends form a linkage relationship. Controlling the forward and reverse rotation of the first driving device 462 can achieve the approach and separation of the two pressing claws. The vertical height of the two pressing claws is controlled by the first lifting device, and the distance between the two pressing claws is controlled by the first transverse moving device. The two cooperate to drive the pressing claws to press against the laminating platform 4.

[0053] Two sets of second camera assemblies 61 are located above the lamination table 4, symmetrically centered around the lamination base plate 460. These second camera assemblies 61, in conjunction with the pressure claw assembly, are used to inspect the pole pieces on the lamination base plate 460. Each set of second camera assemblies 61 includes two cameras, so the two sets of second camera assemblies comprise four cameras, one for each of the four corners of the lamination base plate 460.

[0054] For ease of description, the camera on the left side of the stacking platform 4 is designated as the first camera, the pressing claw on the left side of the stacking platform 4 is designated as the first pressing claw 4623, the camera on the right side of the stacking platform 4 is designated as the second camera, and the pressing claw on the right side of the stacking platform 4 is designated as the second pressing claw 4624. When the pole piece is stacked along the left side of the stacking platform 4, the second pressing claw 4624 is controlled to press against the right side of the pole piece. When the pole piece is stacked along the right side of the stacking platform 4, the first pressing claw 4623 is controlled to press against the left side of the pole piece. When the second pressing claw 4624 is pressed against the right side of the electrode, the first camera is controlled to take a picture of the left side of the electrode. When the first pressing claw 4623 is pressed against the left side of the electrode, the second camera is controlled to take a picture of the right side of the electrode. It can be understood that the position where the pressing claw is pressed is used as the reference point to photograph the position of the electrode away from the side of the pressing claw. After the positive and negative electrodes are stacked, the first camera and the second camera both record the corresponding electrode data. The data from the first camera and the second camera can be used to determine the margins between the positive electrode and the negative electrode, and to calculate whether it meets the production needs.

[0055] The high-speed lamination equipment of the present invention also includes a swing roller assembly, which is used to guide the direction of the diaphragm to achieve lamination. The swing roller assembly includes a swing roller base plate 40, a swing roller frame 44, a swing roller 45 mounted on the swing roller frame 44, and a swing roller drive device 41 for controlling the position of the swing roller 45. The lamination platform 4 is mounted on the swing roller base plate 40. The swing roller frame 44 is rotatably mounted at both ends of the lamination platform 4. The swing roller drive device 41 has two output ends. The output ends of the two swing roller drives 41 are respectively connected to connecting rods 43 via eccentric wheels 42. The ends of the connecting rods 43 that are away from the eccentric wheels 42 are connected to the swing roller frames 44. When the swing roller drive device 41 rotates one circle, it drives the swing roller frame 44 to swing left and right once. The swing roller 45 on the swing roller frame 44 drives the diaphragm to swing, cooperating with the lamination platform 4 and the robot to perform Z-shaped lamination.

[0056] The present invention also provides a lamination production line, comprising the high-speed lamination equipment as described above.

[0057] The present invention further provides a lamination process, wherein the lamination process uses the high-speed lamination equipment described above to laminate the electrodes or uses the lamination production line described above to laminate the electrodes, comprising the following steps:

[0058] S1, electrode loading; the linear feeding module 10 transports the positive / negative electrode to the middle thereof, the turntable 54 controls the manipulator to rotate to the upper middle of the linear feeding module 10, and the first lifting device controls the manipulator to descend to pick up the electrode and then ascend;

[0059] S2, pole piece positioning; control the turntable 54 to rotate, drive the manipulator that picks up the pole piece to rotate to the positioning assembly and place the pole piece on the positioning table, the first camera assembly 60 takes a picture to detect whether the position of the pole piece is accurate, and cooperates with the adjustment assembly 21 to adjust the positioning table;

[0060] S3, secondary loading of the electrode; the robot picks up the electrode after positioning and adjustment on the positioning table;

[0061] S4, lamination; the swing roller assembly guides the diaphragm in a Z-shaped direction, the robot places the pole piece on the lamination table 4, and the pressure claw assembly cooperates to press the pole piece onto the lamination bottom plate 460;

[0062] S5, lamination calibration; the pressure claw assembly and the second camera assembly 61 cooperate to record the distance change of the positive and negative electrode sheets to determine whether they meet the production requirements;

[0063] S6, unloading: unloading the battery cells that have completed the stacking work.

[0064] In the above step S1 , the positive and negative electrode sheets are alternately loaded by the linear loading module 10 .

[0065] In the above step S4, the diaphragm is guided in a Z-shaped direction by the swing roller assembly, and the robot places the pole piece on the stacking table 4. When the pole piece is stacked along the left side of the stacking table 4, the pressure claw assembly on the right side of the stacking table 4 is controlled to press against the side of the pole piece. When the pole piece is stacked along the right side of the stacking table 4, the pressure claw assembly on the left side of the stacking table 4 is controlled to press against the side of the pole piece.

[0066] In the above step S5, when the pressure claw assembly located on the right side of the stacking platform 4 is pressed against the pole piece, the second camera assembly 61 located on the left side of the stacking platform 4 is controlled to take pictures and record the left side of the pole piece. When the pressure claw assembly located on the left side of the stacking platform 4 is pressed against the pole piece, the second camera assembly 61 located on the right side of the stacking platform 4 is controlled to take pictures and record the right side of the pole piece. The data from the second camera assemblies 61 on both sides can be used to determine the margins of the positive pole piece and the negative pole piece, and to infer whether the production needs are met.

[0067] In this embodiment, four manipulators are provided on the turntable 54, and the four manipulators are cross-symmetrical. For ease of description, the four manipulators are sequentially designated as a first manipulator 50, a second manipulator 51, a third manipulator 52, and a fourth manipulator 53. During the loading process, the turntable 54 drives the first manipulator 50 to rotate to the linear loading module 10 to pick up the positive electrode sheet and transport it to the positive electrode sheet positioning assembly 2. At the same time, the second manipulator 51 rotates to the linear loading module 10 to pick up the negative electrode sheet. The turntable 54 is then controlled to reverse, and the second manipulator 51 is moved to the negative electrode sheet positioning assembly 3. While the second manipulator 51 is transporting the negative electrode sheet, the positive electrode sheet positioning assembly 2 has calibrated and adjusted the positioning table 20. At the same time, the fourth manipulator 53 is located above the positive electrode sheet positioning assembly 2, and controls the fourth manipulator 53 to pick up the positive electrode sheet on the positive electrode sheet positioning assembly 2, and then rotates it to the stacking table 4 for stacking. At this time, the third manipulator 52 is located above the negative electrode sheet positioning assembly 3, and controls the third manipulator 52 to pick up the negative electrode sheet on the negative electrode sheet positioning assembly 3, and then rotates it to the stacking table 4 for stacking.

[0068] The above is a specific description of the preferred implementation of the present invention, but the invention is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A high-speed laminating device, characterized in that, it includes a feeding component, a handling component, a positioning component and a laminating table. The feeding component includes a linear feeding module with double movers. One of the movers of the linear feeding module is used to convey the positive electrode sheets, and the other mover of the linear feeding module is used to convey the negative electrode sheets. The handling component includes a turntable and a plurality of manipulators arranged on the turntable. The manipulators are used to pick up and handle the electrode sheets. The turntable is used to control the switching of the manipulators among the feeding component, the positioning component and the laminating table. The positioning component is used to position and correct the deviation of the electrode sheets. The laminating table is used for laminating work. The positioning component includes a positive electrode sheet positioning component and a negative electrode sheet positioning component symmetrically arranged with the turntable as the center. The feeding component, the positive electrode sheet positioning component, the laminating table and the negative electrode sheet positioning component are annularly distributed with the handling component as the center.

2. The high-speed laminating device according to claim 1, characterized in that, a first lifting device is arranged on the turntable. The first lifting device is used to control the lifting of the manipulator. The manipulator lifting device is a motor screw rod assembly. The manipulator is connected to the screw rod in the motor screw rod assembly. A number of vacuum adsorption holes are arranged on the manipulator for adsorbing the electrode sheets.

3. The high-speed laminating device according to claim 1, characterized in that, the positioning component includes a positioning table, a first camera assembly arranged above the positioning table, and an adjustment component arranged below the positioning table. When the manipulator places the electrode sheet on the positioning table, the first camera assembly takes pictures of the electrode sheet on the positioning table, and the adjustment component calibrates the position of the positioning table.

4. The high-speed laminating device according to claim 1, characterized in that, the laminating table includes a laminating bottom plate. Two groups of pressing claw components are symmetrically arranged with the laminating bottom plate as the center. The pressing claw component includes a second lifting device, a first transverse moving device arranged at the output end of the second lifting device, and a pressing claw arranged at the output end of the first transverse moving device. The two groups of pressing claw components work alternately to press the electrode sheets on the laminating bottom plate.

5. The high-speed laminating device according to claim 4, characterized in that, two groups of second camera assemblies symmetrically arranged with the laminating bottom plate as the center are arranged above the laminating table. The second camera assemblies cooperate with the pressing claw components to detect the edge distance between the positive electrode sheet and the negative electrode sheet on the laminating bottom plate.

6. The high-speed laminating device according to claim 1, characterized in that, it further includes a swing roller assembly. The swing roller assembly is used to guide the diaphragm to achieve laminating work. The swing roller assembly includes a swing roller bottom plate, a swing roller frame, a swing roller arranged on the swing roller frame, and a swing roller driving device for controlling the position of the swing roller. The laminating table is arranged on the swing roller bottom plate. The swing roller frame is rotatably arranged at both ends of the laminating table. The swing roller driving device has double output ends. The output ends of the two swing roller driving devices are respectively connected with a connecting rod through an eccentric wheel. The end of the connecting rod far away from the eccentric wheel is connected to the swing roller frame.

7. The high-speed laminating device according to claim 1, characterized in that, Both ends of the linear loading module are provided with sheet splitting and picking devices. The sheet splitting and picking device includes a sheet picking mechanism, a rotating mechanism for controlling the rotation of the sheet picking mechanism, and a third lifting mechanism for controlling the lifting of the sheet picking mechanism. The sheet picking mechanism includes a sheet picking component and a sheet splitting component. The sheet splitting component includes a support plate and a folding component provided on the support plate. The sheet picking components are arranged on both sides of the support plate, and the sheet picking components on both sides are respectively movably connected to the folding component. It also includes a cam structure for restricting the movement of the sheet picking component.

8. A high-speed laminating device according to claim 7, characterized in that the sheet picking component includes a sheet picking plate and a plurality of vacuum suction cups evenly distributed on the sheet picking plate. The cam structure includes a limiting plate with a limiting groove and a moving plate with a protruding structure. The limiting plate is arranged on the support plate, the moving plate is fixedly arranged on the sheet picking plate, the protruding structure is restricted in the limiting groove. The folding component includes a folding driving device and a folding plate connected to the output end of the folding driving device. A rotating shaft is arranged on the folding plate, and a fixing plate is arranged on the sheet picking plate. The fixing plate is connected to the rotating shaft through a swing arm.

9. A laminating production line, characterized in that it includes the high-speed laminating device according to any one of claims 1 to 8.

10. A laminating process, characterized in that the laminating process uses the high-speed laminating device according to any one of claims 1 to 8 to laminate the electrode sheets or uses the laminating production line according to claim 9 to laminate the electrode sheets, and includes the following steps: S1. Electrode sheet loading: The linear loading module transports the positive / negative electrode sheets to the middle thereof, and the turntable controls the manipulator to rotate to the upper part of the middle of the linear loading module. The first lifting device controls the manipulator to descend to pick up the electrode sheet and then ascend; S2. Electrode sheet positioning: Control the turntable to rotate, drive the manipulator picking up the electrode sheet to rotate to the positioning component and place the electrode sheet on the positioning table. The first camera component takes a picture to detect whether the position of the electrode sheet is accurate, and cooperates with the adjustment component to adjust and position the positioning table; S3. Secondary electrode sheet loading: The manipulator picks up the electrode sheet that has been positioned and adjusted by the positioning table; S4. Laminating: The swing roller component guides the diaphragm to move in a Z shape. The manipulator places the electrode sheet on the laminating table, and the pressing claw component cooperates to press the electrode sheet tightly on the laminating bottom plate; S5. Laminating calibration: The pressing claw component and the second camera component cooperate to record the distance change between the positive and negative electrode sheets and judge whether it meets the production requirements; S6. Unloading; Unload the battery cells that have completed the laminating work.

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