Stacking device and method

Abstract

The present application discloses a lamination device and method, including a lamination table, a first magnetic pole piece extraction clamping claw mechanism and a second magnetic pole piece extraction clamping claw mechanism provided on both sides of the lamination table, the first magnetic pole piece extraction clamping claw mechanism inclinedly feeding out the cut magnetic pole pieces along a first direction, and placing the magnetic pole pieces on a horizontal placement surface of the lamination table, the included angle between the first direction and the horizontal placement surface being 8 to 15 degrees, the film swinging mechanism covering the magnetic pole pieces placed on the lamination table with a film and pressing it with a pressing blade, The second magnetic pole piece extraction clamping claw mechanism inclines and feeds out the cut magnetic pole piece along the second direction, places the magnetic pole piece on the film covering the previous magnetic pole piece, and presses it with a pressing blade. The included angle between the second direction and the horizontal loading surface is 8 to 15 degrees. The film swinging mechanism covers the film on the magnetic pole piece placed on the stacking table, and presses it with a pressing blade. This application improves the high-speed positioning effect of the magnetic pole piece during stacking, and enables rapid stacking using the left and right overlapping method, thereby improving stacking efficiency.

Description

[Technical Field]

[0001] (CROSS-REFERENCE TO RELATED APPLICATIONS) This application is based on and claims priority from a Chinese patent application bearing application number 202311805676.3 and filed on December 26, 2023, and a PCT international application bearing application number PCT / CN2023 / 136348 and filed on December 5, 2023, the entire contents of which are hereby incorporated by reference in their entirety.

[0002] (Technical field) This application relates to the field of battery pole piece lamination technology, and more particularly to lamination apparatus and methods. [Background technology]

[0003] In the manufacturing process of lithium-ion batteries, a lamination machine is generally used to stack positive and negative pole pieces at a distance to form a battery cell. In a typical lithium-ion battery cell lamination machine, a suction cup is first used to attract a positive pole piece or a negative pole piece from a material box and then transport it to a corresponding positioning table. When the pole pieces need to be stacked, the suction cup is again used to attract the pole piece from the positioning table and transport it to the lamination table, completing one lamination operation.

[0004] Chinese patent publication number CN107768730A discloses a lithium battery pole piece stacking device, in which a pole piece cartridge has a plurality of pole piece cartridge baffles arranged at equal intervals, and the battery pole pieces are inserted between the pole piece cartridge baffles, a pole piece gripping robot arm is connected to a lifting device, and the lifting device is connected to a lateral movement device, which is attached to a frame, holder grooves are formed on both sides of the diaphragm holder, a plurality of diaphragm support rods are provided, one end of the diaphragm support rod passes through the holder groove and is connected to a diaphragm support rod positioning device, the diaphragm support rod positioning device is movably connected to a diaphragm clamping device, the diaphragm is stretched taut across the other end of the diaphragm support rod, presenting a Z-shape and forming a plurality of pole piece grooves, the cell gripping robot arm is connected to an articulated robot arm, the frame, diaphragm clamping device and articulated robot arm are all fixed to a base, and the pole piece cartridge is movably attached to the base.

[0005] Traditional Z-shaped cutting and stacking combined machines have limited efficiency and require a multi-station segmented design, which increases the size of the equipment. The overlapping of multiple stations is likely to increase the equipment failure rate and reduce the equipment's operating efficiency. Summary of the Invention [Problem to be solved by the invention]

[0006] To overcome the shortcomings of the prior art, the present application provides a stacking device and method, which can improve the alignment of stacking, and can quickly perform stacking using a left-right overlapping method, thereby improving stacking efficiency. [Means for solving the problem]

[0007] The technical solutions adopted in this application to solve the technical problems are as follows:

[0008] A lamination device including a lamination table, and a first magnetic pole piece extraction clamping claw mechanism and a second magnetic pole piece extraction clamping claw mechanism provided on both sides of the lamination table for alternately transporting cut magnetic pole pieces to the lamination table, wherein the first magnetic pole piece extraction clamping claw mechanism and the second magnetic pole piece extraction clamping claw mechanism are provided symmetrically, the first magnetic pole piece extraction clamping claw mechanism includes a first feeding clamping claw and a first driving member, the first driving member is used to drive the first feeding clamping claw to move linearly along a first direction, the lamination table includes a horizontal mounting surface for mounting the magnetic pole pieces, the first direction is provided at an angle with respect to the horizontal mounting surface, and the second magnetic pole piece extraction clamping claw mechanism The mechanism includes a second feed clamping claw and a second driving member, the second driving member is used to drive the second feed clamping claw to move linearly along a second direction, the second direction being inclined relative to the horizontal loading surface and being opposite to the inclination direction of the first direction, the stacking device further includes a film swinging mechanism provided above the stacking table, the film swinging mechanism is used to coat the magnetic pole pieces on the stacking table with a film, and the film swinging mechanism can swing left and right to avoid transport by the first magnetic pole piece extraction clamping claw mechanism and the second magnetic pole piece extraction clamping claw mechanism.

[0009] As a further improvement of the above technical solution, the angle between the first direction and the horizontal placement surface is 8 to 15°, and the angle between the second direction and the horizontal placement surface is 8 to 15°.

[0010] As a further improvement of the above technical solution, the film swinging mechanism is provided with a pressing blade module, which is used to press the magnetic pole pieces and the film.

[0011] As a further improvement of the above technical solution, the first driving member includes a first linear motor inclined along a first direction, and the first feeding clamp claws are attached to a movable end of the first linear motor; the second driving member includes a second linear motor inclined along a second direction, and the second feeding clamp claws are attached to a movable end of the second linear motor.

[0012] As a further improvement of the above technical solution, the first feed clamping claw and the second feed clamping claw each include an attachment plate, a feed clamping claw pressure plate, a feed clamping claw lower plate, a first guide rail slider module and a third driving member, the feed clamping claw pressure plate is slidably connected to the attachment plate by the first guide rail slider module, the feed clamping claw lower plate is fixedly connected to the attachment plate, and the third driving member is used to drive the feed clamping claw pressure plate to move closer to or away from the feed clamping claw lower plate so as to clamp or unclamp the magnetic pole piece.

[0013] As a further improvement of the above technical solution, the third driving member includes a servo motor, an eccentric mechanism, a second guide rail slider module and a support plate, the feeding clamping claw pressure plate is connected to the tip of the support plate, the support plate is slidably connected to the mounting plate by the second guide rail slider module, and the servo motor is connected to the eccentric mechanism and used to lift and lower the support plate in conjunction with the feeding clamping claw pressure plate.

[0014] As a further improvement of the above technical solution, the first feeding clamp claw and the second feeding clamp claw further include a buffer member, the buffer member is connected between the feeding clamp claw pressure plate and the support plate, and the buffer member is used to provide an upward buffering force when the feeding clamp claw pressure plate moves downward.

[0015] As a further improvement of the above technical solution, the buffer member includes an air cylinder, the fixed end of the air cylinder is fixedly connected to the support plate, and the movable end of the air cylinder is fixedly connected to the feed clamping claw pressure plate.

[0016] The technical solutions further provided by this application are as follows:

[0017] A lamination method comprising: the first magnetic pole piece extracting clamping claw mechanism inclinedly feeds out the cut magnetic pole piece along the first direction, and the magnetic pole piece is placed on a horizontal placement surface of a stacking table, and the included angle between the first direction and the horizontal placement surface is 8 to 15 degrees; the film swinging mechanism causes the film to cover the magnetic pole piece placed on the stacking table and presses it with the pressing blade, and at this time the film swinging mechanism swings to the left side of the stacking table; the second magnetic pole piece extracting clamping claw mechanism inclinedly sends out the cut magnetic pole piece along the second direction, and the magnetic pole piece is placed on the film covering the previous magnetic pole piece and pressed by the pressing blade, and the included angle between the second direction and the horizontal placement surface is 8 to 15 degrees; the film swinging mechanism causes the film to cover the magnetic pole piece placed on the stacking table and presses it with the pressing blade, and at this time the film swinging mechanism swings to the right side of the stacking table; Repeating the above operation to complete the stacking of cells.

[0018] As a further improvement of the above technical solution, when the first pole piece extraction clamping claw mechanism sends out the pole piece at an incline along the first direction, it stops conveying when the front end of the pole piece reaches a reference position on the right side of the horizontal mounting surface of the stacking table, at which time the first pole piece extraction clamping claw mechanism unclamps the pole piece and lowers it, and when the second pole piece extraction clamping claw mechanism sends out the pole piece at an incline along the second direction, it stops conveying when the front end of the pole piece reaches a reference position on the left side of the horizontal mounting surface of the stacking table, at which time the second pole piece extraction clamping claw mechanism unclamps the pole piece and lowers it. [Effects of the Invention]

[0019] The beneficial effect of this application is that the pole pieces cut by the first pole piece extraction clamping claw mechanism and the second pole piece extraction clamping claw mechanism are alternately fed to the stacking table for stacking, and the pole pieces are fed at an angle of 10° from the horizontal loading surface, which effectively improves the alignment of the stacking and improves cell quality, and also allows for quick stacking using the left and right overlapping method, which improves the stacking speed and work efficiency. [Brief explanation of the drawings]

[0020] The present application will be further explained below with reference to figures and examples.

[0021] [Figure 1] 1 is a schematic assembly diagram of a stacking device according to the present invention; [Figure 2] 1 is a schematic diagram of a stacking device of the present application in an initial position. [Figure 3] 10 is a schematic diagram of the first pole piece extraction clamping claw mechanism of the present invention sending the pole piece to the lamination table. FIG. [Figure 4] 10 is a schematic diagram of the second pole piece extraction clamping claw mechanism of the present invention sending the pole piece to the lamination table. FIG. [Figure 5] 1 is a structural schematic diagram 1 of a first magnetic pole piece extraction clamping claw mechanism of the present invention. [Figure 6] 2 is a structural schematic diagram 2 of the first magnetic pole piece extraction clamping claw mechanism of the present invention. [Figure 7] 2 is a schematic diagram of a film swinging mechanism and a lamination table in the lamination device of the present application. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0022] In order to fully understand the objectives, features, and advantages of the present application, the concept, specific structure, and resulting technical effects of the present application will be clearly and completely explained below with reference to the embodiments and drawings. Obviously, the described embodiments are only some of the embodiments of the present application, not all of them. Any other embodiments obtained based on the embodiments of the present application without the need for creative efforts by a person skilled in the art are also within the scope of protection of the present application. Furthermore, all connection / connection relationships in the patent do not mean that the components are in direct contact with each other, but that a better connection structure can be achieved by adding or removing auxiliary connection components according to the specific implementation situation. The technical features in the creation of the present application can be combined with each other as long as they are not mutually contradictory.

[0023] An embodiment of the present application includes a laminating device, and see FIG. 1 , the laminating device includes a laminating table 1, a first magnetic pole piece extraction clamping claw mechanism 2, a second magnetic pole piece extraction clamping claw mechanism 3, and a film swinging mechanism 4, the first magnetic pole piece extraction clamping claw mechanism 2 and the second magnetic pole piece extraction clamping claw mechanism 3 are located on both the left and right sides of the laminating table 1, and are both installed symmetrically with respect to the laminating table 1, the first magnetic pole piece extraction clamping claw mechanism 2 and the second magnetic pole piece extraction clamping claw mechanism 3 alternately transport the magnetic pole pieces 6 cut by the cutting mechanism 5 to the laminating table 1, the film swinging mechanism 4 is located above the laminating table 1, the film swinging mechanism 4 sequentially coats the magnetic pole pieces 6 placed on the laminating table 1 with a film, and positions the film between two adjacent magnetic pole pieces 6, see FIG. 7 , the film swinging mechanism 4 is provided with a pressing blade module, and the pressing blade module has a pressing blade and a pressing blade air cylinder. The air cylinder for pressing the pressing blade drives the pressing blade to move downward, thereby pressing the pole piece 6 and the film, improving the quality of the cell. The film swinging mechanism 4 can swing left and right to avoid transport by the first pole piece extraction clamping claw mechanism 2 and the second pole piece extraction clamping claw mechanism 3. That is, when the first pole piece extraction clamping claw mechanism 2 transports the pole piece to the stacking table 1, the film swinging mechanism 4 swings to the right side of the stacking table 1, thereby ensuring sufficient space for the first feed clamping claw 22 of the first pole piece extraction clamping claw mechanism 2 to move above the stacking table 1. Similarly, when the second pole piece extraction clamping claw mechanism 3 transports the pole piece to the stacking table 1, the film swinging mechanism 4 swings to the left side of the stacking table 1, thereby ensuring sufficient space for the second feed clamping claw 32 of the second pole piece extraction clamping claw mechanism 3 to move above the stacking table 1. In this embodiment, the alternating stacking by the first magnetic pole piece extraction clamping claw mechanism 2 and the second magnetic pole piece extraction clamping claw mechanism 3, and the film coating by the film swinging mechanism 4, allow core products to be obtained quickly, resulting in high production efficiency.

[0024] In this embodiment, referring to Figures 2, 3 and 4, the first magnetic pole piece extraction clamping claw mechanism 2 includes a first feed clamping claw 22 and a first driving member 21, the first driving member 21 is used to drive the first feed clamping claw 22 to move linearly along a first direction, the stacking table 1 includes a horizontal loading surface 11, the horizontal loading surface 11 is arranged horizontally, the magnetic pole pieces are placed on the horizontal loading surface 11 during stacking, the first direction is arranged at an angle with respect to the horizontal loading surface 11, and the included angle between the first direction and the horizontal loading surface 11 is 8 to 15 degrees (the angle with the horizontal plane is 175 to 192 degrees), and the included angle is preferably 10 degrees. Similarly, the second magnetic pole piece extraction clamping mechanism 3 includes a second feeding clamping claw 32 and a second driving member 31, and the second driving member 31 is used to drive the second feeding clamping claw 32 to move linearly along a second direction, which is inclined relative to the horizontal mounting surface 11 and is opposite to the inclination direction of the first direction, and the included angle between the second direction and the horizontal mounting surface 11 is 8 to 15 degrees, and the included angle is also preferably 10 degrees. The pole pieces 6 are fed out by inclining the stacking table 1 at an angle of 10 degrees from the horizontal mounting surface 11, which effectively improves the stacking alignment and thereby improves the quality of the cells.

[0025] Furthermore, the first driving member 21 includes a first linear motor inclined along a first direction, and the first feeding clamping claws 22 are attached to the movable end of the first linear motor, and the second driving member 31 includes a second linear motor inclined along a second direction, and the second feeding clamping claws 32 are attached to the movable end of the second linear motor. That is, by driving the first linear motor and the second linear motor, the pole pieces 6 can be transported to the stacking table 1 along the first direction or the second direction, and using the linear motor as a power source can improve the transport accuracy of the pole pieces, thereby further improving the alignment of the stacks.

[0026] In this embodiment, the first magnetic pole piece extraction clamping claw mechanism 2 and the second magnetic pole piece extraction clamping claw mechanism 3 are arranged symmetrically, that is, the structures of both are the same, so here we will explain the structure of the first magnetic pole piece extraction clamping claw mechanism 2, and refer to Figures 5 and 6. The first magnetic pole piece extraction clamping claw mechanism 2 includes a base 225, the base 225 includes a bottom plate 2251 and an attachment plate 2252, the bottom plate 2251 is connected to the mover of the first linear motor, and when the first linear motor is driven, the bottom plate 2251 is moved in a linear motion in conjunction with the first magnetic pole piece extraction clamping claw mechanism 2, and further the entire first magnetic pole piece extraction clamping claw mechanism 2 is moved in a linear motion in conjunction with the first magnetic pole piece extraction clamping claw mechanism 2.

[0027] The first feed clamping claw 22 includes a feed clamping claw pressure plate 221, a feed clamping claw lower plate 222, a first guide rail slider module and a third driving member 224, the feed clamping claw pressure plate 221 is slidably connected to the mounting plate 2252 by the first guide rail slider module, the feed clamping claw lower plate 222 is fixedly connected to the mounting plate 2252, and the feed clamping claw lower plate 222 is fixedly connected to the mounting plate 2252, and the third driving member 224 is used to drive the feed clamping claw pressure plate 221 to move closer to or away from the feed clamping claw lower plate 222 so as to clamp or unclamp the magnetic pole piece 6. Specifically, the third driving member 224 includes a servo motor 2241, an eccentric mechanism 2242, a second guide rail slider module, and a support plate 2243. The feeding clamping claw pressure plate 221 is connected to the tip of the support plate 2243, and the support plate 2243 is slidably connected to the mounting plate 2252 along the vertical direction by the second guide rail slider module. The servo motor 2241 is attached to the bottom plate 2251, and the eccentric mechanism 2242 is attached to the mounting plate 2252. The eccentric mechanism 2242 is connected between the output shaft of the servo motor 2241 and the support plate 2243, and the output shaft of the servo motor 2241 rotates. As a result, the eccentric mechanism 2242 operates in conjunction with this, and further the support plate 2243 moves up and down in the vertical direction in conjunction with this, and then the feed clamping claw pressure plate 221 moves up and down in conjunction with this, and as the feed clamping claw pressure plate 221 moves up and down, it moves away from or approaches the feed clamping claw lower plate 222, thereby opening and closing the pole piece transport clamping claws, which makes it possible to clamp and unclamp the pole piece 6, and the pole piece transport clamping claw clamps the pole piece 6 to facilitate stable feeding of the pole piece 6, and when the pole piece 6 is sent to a predetermined position on the stacking table 1, the first pole piece transport clamping claw unclamps the pole piece 6 so that the pole piece 6 is placed on the stacking table 1.

[0028] The first feeding clamp claw 22 and the second feeding clamp claw 32 further include a buffer member 223. Taking the first feeding clamp claw 22 as an example, the buffer member 223 is connected between the feeding clamp claw pressure plate 221 and the support plate 2243, and is used to provide an upward buffering force when the feeding clamp claw pressure plate 221 moves downward so as to reduce the pressure of the feeding clamp claw pressure plate 221 against the feeding clamp claw lower plate 222. Specifically, the buffer member 223 includes an air cylinder, the fixed end of which is fixedly connected to the support plate 2243, and the movable end of which is fixedly connected to the feed clamp jaw pressure plate 221. When the servo motor 2241 is driven, the support plate 2243, the air cylinder, and the feed clamp jaw pressure plate 221 are moved downward or upward in a synchronized manner in conjunction with each other. When the feed clamp jaw pressure plate 221 moves downward to clamp the pole piece 6 and closes against the feed clamp jaw lower plate 222, the air cylinder provides a buffering force to eliminate the impact force of the feed clamp jaw pressure plate 221 on the feed clamp jaw lower plate 222 and prevent the pole piece 6 from being crushed or damaged when the feed clamp jaw pressure plate 221 clamps the pole piece 6.

[0029] The present embodiment further includes a lamination method applied to the lamination device, The feeding clamping claw pressure plate 221 and the feeding clamping claw lower plate 222 in the first magnetic pole piece extraction clamping mechanism 2 clamp the magnetic pole piece 6 cut by the cutting mechanism 5, and then the first linear motor is driven to send out the magnetic pole piece 6 at an incline along the first direction, the included angle between the first direction and the horizontal mounting surface 11 of the stacking table 1 is 10°, and when the front end of the magnetic pole piece 6 reaches the right reference position on the horizontal mounting surface 11 of the stacking table 1, the conveyance is stopped (see Figure 3), and the air cylinder, in conjunction with the feeding clamping claw pressure plate 221, separates from the feeding clamping claw lower plate 222, unclamping the magnetic pole piece 6 and placing the magnetic pole piece 6 on the horizontal mounting surface 11 of the stacking table 1, and the first linear motor is driven to return to the initial position with the first feeding clamping claw 22 (see Figure 2). In step 1, the film swinging mechanism 4 causes the film to cover the magnetic pole piece 6 placed on the stacking table 1, and presses it with a pressing blade, and at this time, the film swinging mechanism 4 swings to the left side of the stacking table 1 (step 2); The feeding clamping claw pressure plate 221 and the feeding clamping claw lower plate 222 in the second magnetic pole piece extraction clamping claw mechanism 3 clamp the magnetic pole piece 6 cut by the cutting mechanism 5, and then the second linear motor is driven to send out the magnetic pole piece 6 at an incline along the second direction, the included angle between the second direction and the horizontal mounting surface 11 of the stacking table 1 is 10°, and when the front end of the magnetic pole piece 6 reaches the left reference position on the horizontal mounting surface 11 of the stacking table 1, the conveyance is stopped (see FIG. 4), and the air cylinder in the second magnetic pole piece extraction clamping claw mechanism 3 moves in conjunction with the feeding clamping claw pressure plate 221 and separates from the feeding clamping claw lower plate 222, unclamping the magnetic pole piece 6 and placing the magnetic pole piece 6 on the pressed film on the stacking table 1, and the second linear motor is driven to return to the initial position with the second feeding clamping claw 32 (see FIG. 2). Step 3; Step 4: the film swinging mechanism 4 causes the film to cover the magnetic pole piece 6 placed on the stacking table 1 in step 3, and presses it with a pressing blade, and at this time, the film swinging mechanism 4 swings to the right side of the stacking table 1; Repeating steps 1 to 4 to complete the stacking of cells.

[0030] In the present application, the pole pieces 6 cut by the first pole piece extraction clamping claw mechanism 2 and the second pole piece extraction clamping claw mechanism 3 are alternately fed to the stacking table 1 for stacking, and the pole pieces 6 are fed at an angle of 10° from the horizontal loading surface 11, which effectively improves the alignment of the stacking and improves the quality of the cells. In addition, the left and right overlapping method allows for rapid stacking, which improves the stacking speed and work efficiency.

[0031] Although the preferred embodiments of the present application have been specifically described above, the invention of the present application is not limited to the above embodiments, and those skilled in the art may make various equivalent modifications or substitutions without departing from the spirit of the present application, and all of these equivalent modifications or substitutions are included within the scope limited by the claims of the present application.

[0032] (Addendum) (Appendix 1) A lamination device including a lamination table, and a first magnetic pole piece extraction clamping claw mechanism and a second magnetic pole piece extraction clamping claw mechanism provided on both sides of the lamination table for alternately transporting cut magnetic pole pieces to the lamination table, wherein the first magnetic pole piece extraction clamping claw mechanism and the second magnetic pole piece extraction clamping claw mechanism are provided symmetrically, the first magnetic pole piece extraction clamping claw mechanism includes a first feeding clamping claw and a first driving member, the first driving member is used to drive the first feeding clamping claw to move linearly along a first direction, the lamination table includes a horizontal mounting surface for mounting the magnetic pole pieces, the first direction is provided at an angle with respect to the horizontal mounting surface, and the second magnetic pole piece extraction clamping claw mechanism is a stacking device comprising two feed clamping claws and a second driving member, the second driving member being used to drive the second feed clamping claws to move linearly along a second direction, the second direction being inclined relative to the horizontal loading surface and being opposite to the inclination direction of the first direction; the stacking device further comprising a film swinging mechanism provided above the stacking table, the film swinging mechanism being used to coat the magnetic pole pieces on the stacking table with a film, and the film swinging mechanism being capable of swinging left and right to avoid being transported by the first magnetic pole piece extraction clamping claw mechanism and the second magnetic pole piece extraction clamping claw mechanism.

[0033] (Appendix 2) 2. The stacking device according to claim 1, wherein the angle between the first direction and the horizontal placement surface is 8 to 15 degrees, and the angle between the second direction and the horizontal placement surface is 8 to 15 degrees.

[0034] (Appendix 3) 2. The lamination device according to claim 1, wherein the film swinging mechanism is provided with a pressing blade module, and the pressing blade module is used to press the magnetic pole pieces and the film.

[0035] (Appendix 4) The stacking device described in Appendix 1, characterized in that the first driving member includes a first linear motor inclined along a first direction, the first feed clamping claws are attached to a movable end of the first linear motor, and the second driving member includes a second linear motor inclined along a second direction, and the second feed clamping claws are attached to a movable end of the second linear motor.

[0036] (Appendix 5) The stacking device described in Appendix 1, characterized in that the first feed clamp claw and the second feed clamp claw both include an mounting plate, a feed clamp claw pressure plate, a feed clamp claw lower plate, a first guide rail slider module and a third driving member, the feed clamp claw pressure plate is slidably connected to the mounting plate by the first guide rail slider module, the feed clamp claw lower plate is fixedly connected to the mounting plate, and the third driving member is used to drive the feed clamp claw pressure plate to move closer to or away from the feed clamp claw lower plate to clamp or unclamp the magnetic pole piece.

[0037] (Appendix 6) The stacking device described in Appendix 5, characterized in that the third driving member includes a servo motor, an eccentric mechanism, a second guide rail slider module and a support plate, the feed clamping claw pressure plate is connected to the tip of the support plate, the support plate is slidably connected to the mounting plate by the second guide rail slider module, and the servo motor is connected to the eccentric mechanism and used to raise and lower the support plate in conjunction with the eccentric mechanism.

[0038] (Appendix 7) The stacking device described in Appendix 6, characterized in that the first feed clamping claw and the second feed clamping claw further include a buffer member, the buffer member is connected between the feed clamping claw pressure plate and the support plate, and the buffer member is used to provide an upward buffering force when the feed clamping claw pressure plate moves downward.

[0039] (Appendix 8) The stacking device described in Appendix 7, characterized in that the buffer member includes an air cylinder, a fixed end of the air cylinder is fixedly connected to the support plate, and a movable end of the air cylinder is fixedly connected to the feed clamp claw pressure plate.

[0040] (Appendix 9) The stacking device according to any one of Supplementary Notes 1 to 8, the first magnetic pole piece extracting clamping claw mechanism inclinedly feeds out the cut magnetic pole piece along a first direction, and the magnetic pole piece is placed on a horizontal placement surface of the stacking table, and an included angle between the first direction and the horizontal placement surface is 8 to 15 degrees; the film swinging mechanism causes the film to cover the magnetic pole piece placed on the stacking table and presses it with a pressing blade, and at this time, the film swinging mechanism swings to the left side of the stacking table; The second magnetic pole piece extracting clamping claw mechanism inclines and sends out the cut magnetic pole piece along the second direction, places the magnetic pole piece on the film covering the previous magnetic pole piece, and presses it with a pressing blade, and the included angle between the second direction and the horizontal placement surface is 8 to 15 degrees; the film swinging mechanism causes the film to cover the magnetic pole piece placed on the stacking table and presses it with a pressing blade, and at this time, the film swinging mechanism swings to the right side of the stacking table; and repeating the above operation to complete stacking of the cells.

[0041] (Appendix 10) The stacking method described in Appendix 9, characterized in that when the first pole piece extraction clamping claw mechanism sends out the pole piece at an incline along the first direction, it stops conveying when the front end of the pole piece reaches a reference position on the right side of the horizontal mounting surface of the stacking table, at which point the first pole piece extraction clamping claw mechanism unclamps the pole piece and lowers it, and when the second pole piece extraction clamping claw mechanism sends out the pole piece at an incline along the second direction, it stops conveying when the front end of the pole piece reaches a reference position on the left side of the horizontal mounting surface of the stacking table, at which point the second pole piece extraction clamping claw mechanism unclamps the pole piece and lowers it. [Explanation of symbols]

[0042] 1: stacking table, 11: horizontal placement surface, 2: first magnetic pole piece extraction clamping claw mechanism, 21: first driving member, 22: first feed clamping claw, 221: feed clamping claw pressure plate, 222: feed clamping claw lower plate, 223: buffer member, 224: third driving member, 2241: servo motor, 2242: eccentric mechanism, 2243: support plate, 225: base, 2251: bottom plate, 2252: mounting plate, 3: second magnetic pole piece extraction clamping claw mechanism, 31: second driving member, 32: second feed clamping claw, 4: film swinging mechanism, 5: cutting mechanism, 6: magnetic pole piece

Claims

1. A lamination device including a lamination table, and a first magnetic pole piece extraction clamping claw mechanism and a second magnetic pole piece extraction clamping claw mechanism provided on both sides of the lamination table for alternately transporting cut magnetic pole pieces to the lamination table, wherein the first magnetic pole piece extraction clamping claw mechanism and the second magnetic pole piece extraction clamping claw mechanism are provided symmetrically, the first magnetic pole piece extraction clamping claw mechanism includes a first feeding clamping claw and a first driving member, the first driving member is used to drive the first feeding clamping claw to move linearly along a first direction, the lamination table includes a horizontal mounting surface for mounting the magnetic pole pieces, the first direction is provided at an angle with respect to the horizontal mounting surface, and the second magnetic pole piece extraction clamping claw mechanism is a stacking device comprising two feed clamping claws and a second driving member, the second driving member being used to drive the second feed clamping claws to move linearly along a second direction, the second direction being inclined relative to the horizontal loading surface and the second direction being opposite to the inclination direction of the first direction; the stacking device further comprising a film swinging mechanism provided above the stacking table, the film swinging mechanism being used to coat the magnetic pole pieces on the stacking table with a film, and the film swinging mechanism being capable of swinging left and right to avoid being transported by the first magnetic pole piece extraction clamping claw mechanism and the second magnetic pole piece extraction clamping claw mechanism.

2. 2. The stacking device according to claim 1, wherein an included angle between the first direction and the horizontal placement surface is 8 to 15 degrees, and an included angle between the second direction and the horizontal placement surface is 8 to 15 degrees.

3. 2. The laminating device according to claim 1, wherein the film swinging mechanism is provided with a pressing blade module, the pressing blade module being used to press the magnetic pole pieces and the film.

4. 2. The stacking device according to claim 1, wherein the first driving member includes a first linear motor inclined along a first direction, the first feed clamping claws being attached to a movable end of the first linear motor, and the second driving member includes a second linear motor inclined along a second direction, and the second feed clamping claws being attached to a movable end of the second linear motor.

5. 2. The stacking device according to claim 1, wherein the first and second feed clamping claws each include an attachment plate, a feed clamping claw pressure plate, a feed clamping claw lower plate, a first guide rail slider module, and a third driving member, wherein the feed clamping claw pressure plate is slidably connected to the attachment plate by the first guide rail slider module, the feed clamping claw lower plate is fixedly connected to the attachment plate, and the third driving member is used to drive the feed clamping claw pressure plate to move closer to or away from the feed clamping claw lower plate so as to clamp or unclamp the magnetic pole piece.

6. 6. The stacking device according to claim 5, wherein the third driving member includes a servo motor, an eccentric mechanism, a second guide rail slider module, and a support plate, the feed clamping claw pressure plate is connected to the tip of the support plate, the support plate is slidably connected to the mounting plate by the second guide rail slider module, and the servo motor is connected to the eccentric mechanism and used to raise and lower the support plate in conjunction with the eccentric mechanism.

7. 7. The stacking device according to claim 6, wherein the first and second feeding clamping claws further include a buffer member, the buffer member being connected between the feeding clamping claw pressure plate and the support plate, and the buffer member being used to provide an upward buffering force when the feeding clamping claw pressure plate moves downward.

8. 8. The stacking device according to claim 7, wherein the buffer member includes an air cylinder, the fixed end of the air cylinder being fixedly connected to the support plate, and the movable end of the air cylinder being fixedly connected to the feed clamping claw pressure plate.

9. The stacking device according to any one of claims 1 to 8 is applied to the stacking device, the first magnetic pole piece extracting and clamping claw mechanism inclinedly feeds out the cut magnetic pole pieces along a first direction, and the magnetic pole pieces are placed on a horizontal placement surface of the stacking table, and an included angle between the first direction and the horizontal placement surface is 8 to 15 degrees; the film swinging mechanism causes the film to cover the magnetic pole piece placed on the stacking table and presses it with a pressing blade, and at this time, the film swinging mechanism swings to the left side of the stacking table; the second magnetic pole piece extracting clamping claw mechanism inclinedly sends out the cut magnetic pole piece along the second direction, places the magnetic pole piece on the film covering the previous magnetic pole piece, and presses it with a pressing blade, and the included angle between the second direction and the horizontal placement surface is 8 to 15 degrees; the film swinging mechanism causes the film to cover the magnetic pole piece placed on the stacking table and presses it with a pressing blade, and at this time, the film swinging mechanism swings to the right side of the stacking table; and repeating the above operation to complete stacking of the cells.

10. 10. The stacking method of claim 9, wherein the first pole piece extraction clamping claw mechanism stops conveying the pole piece when the front end of the pole piece reaches a right reference position on the horizontal mounting surface of the stacking table as the pole piece is sent out at an incline along the first direction, at which point the first pole piece extraction clamping claw mechanism unclamps the pole piece and lowers it, and the second pole piece extraction clamping claw mechanism stops conveying the pole piece when the front end of the pole piece reaches a left reference position on the horizontal mounting surface of the stacking table as the pole piece is sent out at an incline along the second direction, at which point the second pole piece extraction clamping claw mechanism unclamps the pole piece and lowers it.

Images