Lamination apparatus 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 a Chinese patent application with application number 202311805676.3 and filing date December 26, 2023, and a PCT international application with application number PCT / CN2023 / 136348 and filing date December 5, 2023, claims the priority thereof, and all the contents of the said applications are hereby incorporated herein by reference in their entirety.

[0002] (Technical Field) This application relates to the field of battery electrode sheet lamination technology, specifically to lamination devices and methods.

Background Art

[0003] In the manufacturing process of lithium - ion batteries, generally, a laminator is used to stack the positive and negative electrodes with a gap to form a battery cell. In a conventional lithium - ion battery cell laminator, first, a suction cup is used to adsorb a positive electrode sheet or a negative electrode sheet from a material box, transport it to a corresponding positioning table, and when the electrode sheets need to be stacked, the suction cup is used again to adsorb the electrode sheet from the positioning table and transport it to a lamination table to complete one lamination operation.

[0004] A Chinese patent with publication number CN107768730A discloses a lithium battery pole piece stacking device, in which multiple pole piece cartridge baffles are provided at equal intervals in a pole piece cartridge, the battery pole pieces are inserted between the pole piece cartridge baffles, the pole piece gripping robot arm is connected to a lifting device, the lifting device is connected to a lateral movement device, the lateral movement device is mounted on a frame, holder grooves are provided on both sides of the diaphragm holder, multiple diaphragm support rods are provided, one end of each 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, forming a Z shape and multiple 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 mounted to the base.

[0005] Conventional Z-shaped cutting and stacking type multifunction machines have efficiency limitations and require a multi-station segmented design, which increases the size of the equipment. The overlapping of multiple stations tends to increase the equipment failure rate and reduces the operating efficiency of the equipment. [Overview of the Initiative] [Problems that the invention aims to solve]

[0006] To address the shortcomings of conventional technology, this invention provides a lamination apparatus and method that can improve the alignment of laminations, perform lamination quickly using a left-right overlapping method, and improve lamination efficiency. [Means for solving the problem]

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

[0008] A stacking apparatus comprising a stacking table and a first pole piece extraction and gripping claw mechanism and a second pole piece extraction and gripping claw mechanism provided on both sides of the stacking table for alternately transporting cut pole pieces to the stacking table, wherein the first pole piece extraction and gripping claw mechanism and the second pole piece extraction and gripping claw mechanism are provided symmetrically, the first pole piece extraction and gripping claw mechanism includes a first feed gripping claw and a first drive member, the first drive member is used to drive the first feed gripping claw to move linearly along a first direction, the stacking table includes a horizontal mounting surface for placing pole pieces, the first direction is provided inclined with respect to the horizontal mounting surface, and the second pole piece extraction and gripping claw mechanism The structure includes a second feed gripping claw and a second drive member, the second drive member being used to drive the second feed gripping claw to move linearly along a second direction, the second direction being inclined with respect to the horizontal mounting surface, and the second direction being opposite to the inclination direction of the first direction, the lamination device further includes a film oscillating mechanism provided above the lamination table, the film oscillating mechanism being used to coat the magnetic pole pieces on the lamination table with film, and the film oscillating mechanism being able to oscillate from side to side to avoid transport by the first magnetic pole piece removal gripping claw mechanism and the second magnetic pole piece removal gripping claw mechanism.

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

[0010] As a further improvement to the above technical solution, a pressing blade module is provided in the film oscillating mechanism, and the pressing blade module is used to press the magnetic pole piece and the film.

[0011] As a further improvement to the above technical solution, the first drive member includes a first linear motor inclined along a first direction, and the first feed gripping claw is attached to the movable end of the first linear motor; the second drive member includes a second linear motor inclined along a second direction, and the second feed gripping claw is attached to the movable end of the second linear motor.

[0012] As a further improvement to the above technical solution, the first feed clamping claw and the second feed clamping claw each include a mounting plate, a feed clamping claw pressing plate, a feed clamping claw lower plate, a first guide rail slider module, and a third drive member, wherein the feed clamping claw pressing plate is slidably connected to the mounting plate by the first guide rail slider module, the feed clamping claw lower plate is fixedly connected to the mounting plate, and the third drive member is used to drive the feed clamping claw pressing plate to move closer to or away from the feed clamping claw lower plate in order to clamp or unclam a magnetic pole piece.

[0013] As a further improvement to the above technical solution, the third drive member includes a servo motor, an eccentric mechanism, a second guide rail slider module, and a support plate, the feed clamping claw pressing 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 it.

[0014] As a further improvement to the above technical solution, the first feed clamping claw and the second feed clamping claw further include a cushioning member, the cushioning member is connected between the feed clamping claw pressing plate and the support plate, and the cushioning member is used to provide an upward cushioning force when the feed clamping claw pressing plate moves downward.

[0015] As a further improvement to the above technical solution, the cushioning 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 pressing plate.

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

[0017] A lamination method, The first pole piece extraction and gripping claw mechanism feeds out the cut pole piece at an angle along a first direction, places the pole piece on the horizontal mounting surface of the stacking bed, and the angle between the first direction and the horizontal mounting surface is 8 to 15°. The film oscillating mechanism covers the film with a magnetic pole piece placed on a stacking platform, presses it with a pressing blade, and at this time the film oscillating mechanism oscillates to the left of the stacking platform. The second pole piece extraction and gripping claw mechanism feeds out the cut pole piece at an angle along the second direction, places the pole piece on the film covering the previous pole piece, and presses it with a pressing blade, with the angle between the second direction and the horizontal mounting surface being 8 to 15°. The film oscillating mechanism covers the film with a magnetic pole piece placed on a stacking platform, presses it with a pressing blade, and at this time the film oscillating mechanism oscillates to the right of the stacking platform. The process includes repeating the above steps to complete the stacking of cells.

[0018] As a further improvement to the above technical solution, when the first pole piece extraction and gripping claw mechanism feeds out a pole piece at an inclination along a first direction, it stops transporting when the front end of the pole piece reaches the right-side reference position on the horizontal mounting surface of the stacking table, and at this time the first pole piece extraction and gripping claw mechanism unclams the pole piece and lowers it. When the second pole piece extraction and gripping claw mechanism feeds out a pole piece at an inclination along a second direction, it stops transporting when the front end of the pole piece reaches the left-side reference position on the horizontal mounting surface of the stacking table, and at this time the second pole piece extraction and gripping claw mechanism unclams the pole piece and lowers it. [Effects of the Invention]

[0019] The beneficial effects of this invention are that the pole pieces cut by the first pole piece extraction and gripping claw mechanism and the second pole piece extraction and gripping 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 mounting surface, effectively improving the alignment of the stacking and improving the quality of the cells. Furthermore, the left-right overlapping method allows for rapid stacking, improving the stacking speed and work efficiency. [Brief explanation of the drawing]

[0020] The present application will be further described below with reference to the drawings and embodiments.

[0021] [Figure 1] This is a schematic diagram of the assembly of the lamination apparatus of the present invention. [Figure 2] It is a schematic diagram of the stacking device of the present application in the initial position. [Figure 3] It is a schematic diagram of the first magnetic pole piece extraction and clamping claw mechanism of the present application sending the magnetic pole piece to the stacking table. [Figure 4] It is a schematic diagram of the second magnetic pole piece extraction and clamping claw mechanism of the present application sending the magnetic pole piece to the stacking table. [Figure 5] It is schematic diagram 1 of the structure of the first magnetic pole piece extraction and clamping claw mechanism of the present application. [Figure 6] It is schematic diagram 2 of the structure of the first magnetic pole piece extraction and clamping claw mechanism of the present application. [Figure 7] It is a schematic diagram of the film swing mechanism and the stacking table in the stacking device of the present application.

Embodiments for Carrying out the Invention

[0022] In order to fully understand the object, features and effects of the present application, the idea, specific structure and technical effects generated of the present application will be clearly and completely described below by referring to the embodiments and drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all of them. Based on the embodiments of the present application, other embodiments obtained on the premise that those skilled in the art do not perform creative labor all belong to the protection scope of the present application. Also, all connection / connection relationships related to the patent do not mean that the members are in direct contact, but rather that a more excellent connection structure can be formed by adding or reducing connection auxiliary members according to the specific implementation situation. Each technical feature in the creation of the present application can be combined with each other on the premise that they do not conflict with each other.

[0023] An embodiment of the present application includes a lamination apparatus, referring to Figure 1, the lamination apparatus includes a lamination table 1, a first pole piece extraction and gripping claw mechanism 2, a second pole piece extraction and gripping claw mechanism 3, and a film oscillating mechanism 4, the first pole piece extraction and gripping claw mechanism 2 and the second pole piece extraction and gripping claw mechanism 3 are located on the left and right sides of the lamination table 1 and are provided symmetrically with respect to the lamination table 1, the first pole piece extraction and gripping claw mechanism 2 and the second pole piece extraction and gripping claw mechanism 3 alternately transport the pole pieces 6 cut by the cutting mechanism 5 to the lamination table 1, the film oscillating mechanism 4 is located above the lamination table 1 and the film oscillating mechanism 4 sequentially applies film coating to the pole pieces 6 placed on the lamination table 1 and positions the film between two adjacent pole pieces 6, referring to Figure 7, the film oscillating mechanism 4 is provided with a pressing blade module, the pressing blade module comprises a pressing blade and a pressing blade air cylinder The press blade air cylinder drives the press blade downward to press the magnetic pole piece 6 and the film, thereby improving the quality of the cell. The film oscillating mechanism 4 can swing from side to side to avoid transport by the first magnetic pole piece removal and gripping claw mechanism 2 and the second magnetic pole piece removal and gripping claw mechanism 3. Specifically, when the first magnetic pole piece removal and gripping claw mechanism 2 transports the magnetic pole piece to the stacking table 1, the film oscillating mechanism 4 swings to the right of the stacking table 1, thereby securing sufficient space to move the first feed gripping claw 22 of the first magnetic pole piece removal and gripping claw mechanism 2 above the stacking table 1. Similarly, when the second magnetic pole piece removal and gripping claw mechanism 3 transports the magnetic pole piece to the stacking table 1, the film oscillating mechanism 4 swings to the left of the stacking table 1, thereby securing sufficient space to move the second feed gripping claw 32 of the second magnetic pole piece removal and gripping claw mechanism 3 above the stacking table 1. In this embodiment, the alternating lamination by the first pole piece extraction and gripping claw mechanism 2 and the second pole piece extraction and gripping claw mechanism 3, and the film coating by the film oscillating mechanism 4, allow for rapid production of core products and high production efficiency.

[0024] In this embodiment, referring to Figures 2, 3, and 4, the first magnetic pole piece extraction and clamping claw mechanism 2 includes a first feed clamping claw 22 and a first drive member 21, the first drive member 21 is used to drive the first feed clamping claw 22 to move linearly along a first direction, the stacking base 1 includes a horizontal mounting surface 11, the horizontal mounting surface 11 is provided horizontally, the magnetic pole pieces are placed on the horizontal mounting surface 11 when stacked, the first direction is provided at an inclination with respect to the horizontal mounting surface 11, and the angle between the first direction and the horizontal mounting surface 11 is 8 to 15° (angle with the horizontal plane is 175 to 192°), and the angle is preferably 10°. Similarly, the second pole piece extraction and gripping claw mechanism 3 includes a second feed gripping claw 32 and a second drive member 31, the second drive member 31 being used to drive the second feed gripping claw 32 to move linearly along a second direction, the second direction being inclined with respect to the horizontal mounting surface 11 and being opposite to the inclination direction of the first direction, the angle between the second direction and the horizontal mounting surface 11 being 8 to 15°, and preferably 10°. By using a method inclined at an angle of 10° from the horizontal mounting surface 11 of the stacking base 1, the pole pieces 6 can be fed out, effectively improving the alignment of the stacking and thereby improving the quality of the cells.

[0025] Furthermore, the first drive member 21 includes a first linear motor inclined along a first direction, and the first feed gripping claw 22 is attached to the movable end of the first linear motor; the second drive member 31 includes a second linear motor inclined along a second direction, and the second feed gripping claw 32 is attached to the movable end of the second linear motor. In other words, the magnetic pole pieces 6 can be transported to the stacking table 1 along the first or second direction by driving the first and second linear motors, and by employing linear motors as a power source, the transport accuracy of the magnetic pole pieces can be improved, thereby further improving the alignment of the stacks.

[0026] In this embodiment, the first pole piece extraction and gripping claw mechanism 2 and the second pole piece extraction and gripping claw mechanism 3 are provided symmetrically, meaning their structures are the same. Therefore, the structure of the first pole piece extraction and gripping claw mechanism 2 will be described here, referring to Figures 5 and 6. The first pole piece extraction and gripping claw mechanism 2 includes a base 225, the base 225 includes a bottom plate 2251 and a mounting plate 2252, the bottom plate 2251 is connected to the movable element of the first linear motor, and the first linear motor drives the bottom plate 2251 in conjunction to cause linear motion, and further drives the entire first pole piece extraction and gripping claw mechanism 2 in conjunction to cause linear motion.

[0027] The first feed clamping claw 22 includes a feed clamping claw pressing plate 221, a feed clamping claw lower plate 222, a first guide rail slider module, and a third drive member 224, wherein the feed clamping claw pressing plate 221 is slidably connected to a 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 third drive member 224 is used to drive the feed clamping claw pressing plate 221 closer to or further away from the feed clamping claw lower plate 222 to achieve clamping or unclamping of the magnetic pole piece 6. Specifically, the third drive member 224 includes a servo motor 2241, an eccentricity mechanism 2242, a second guide rail slider module, and a support plate 2243. The feed clamping claw pressing plate 221 is connected to the tip of the support plate 2243, 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 mounted on the bottom plate 2251, the eccentricity mechanism 2242 is mounted on the mounting plate 2252, and the eccentricity mechanism 2242 is connected between the output shaft of the servo motor 2241 and the support plate 2243, and furthermore, the output shaft of the servo motor 2241 rotates Then, the eccentric mechanism 2242 is operated in conjunction, and the support plate 2243 is moved up and down vertically in conjunction, and subsequently the feed clamping claw pressing plate 221 is moved up and down in conjunction, and as the feed clamping claw pressing plate 221 moves up and down, it moves away from or closer to the feed clamping claw lower plate 222, thereby opening and closing the magnetic pole piece transport clamping claw, which makes it possible to clamp and unclam the magnetic pole piece 6, the magnetic pole piece transport clamping claw clamps the magnetic pole piece 6 to facilitate stable feeding of the magnetic pole piece 6, and when the magnetic pole piece 6 is sent to a predetermined position on the stacking table 1, the first magnetic pole piece transport clamping claw unclams the magnetic pole piece 6 so that it is placed on the stacking table 1.

[0028] The first feed clamping claw 22 and the second feed clamping claw 32 further include a cushioning member 223, taking the first feed clamping claw 22 as an example, the cushioning member 223 is connected between the feed clamping claw pressing plate 221 and the support plate 2243, and the cushioning member 223 is used to provide an upward cushioning force when the feed clamping claw pressing plate 221 moves downward to reduce the pressure of the feed clamping claw pressing plate 221 on the feed clamping claw lower plate 222. Specifically, the cushioning member 223 includes an air cylinder, the fixed end of the air cylinder is fixedly connected to the support plate 2243, and the movable end of the air cylinder is fixedly connected to the feed clamping claw pressing plate 221. When the servo motor 2241 is driven, the support plate 2243, the air cylinder, and the feed clamping claw pressing plate 221 move synchronously down or up in conjunction with each other. When the feed clamping claw pressing plate 221 moves downward to clamp the magnetic pole piece 6 and closes against the feed clamping claw lower plate 222, the air cylinder provides a cushioning force to eliminate the impact force of the feed clamping claw pressing plate 221 against the feed clamping claw lower plate 222, preventing crush damage to the magnetic pole piece 6 when the feed clamping claw pressing plate 221 clamps it.

[0029] The embodiments of this application further include a lamination method applied to the above-described lamination apparatus, Step 1 involves the feed clamping claw pressing plate 221 and feed clamping claw lower plate 222 in the first magnetic pole piece extraction and clamping claw mechanism 2 clamping the magnetic pole piece 6 cut by the cutting mechanism 5, then the first linear motor drives to tilt and feed out the magnetic pole piece 6 along the first direction, the angle between the first direction and the horizontal mounting surface 11 of the stacking table 1 being 10°, and when the front end of the magnetic pole piece 6 reaches the right-side reference position on the horizontal mounting surface 11 of the stacking table 1, transport stops (see Figure 3), the air cylinder moves away from the feed clamping claw lower plate 222 in conjunction with the feed clamping claw pressing plate 221, unclamping the magnetic pole piece 6, placing the magnetic pole piece 6 on the horizontal mounting surface 11 of the stacking table 1, and the first linear motor drives to bring the first feed clamping claw 22 back to its initial position (see Figure 2), The film oscillating mechanism 4 covers the magnetic pole piece 6 placed on the stacking base 1 in step 1, presses it with a pressing blade, and at this time the film oscillating mechanism 4 oscillates to the left of the stacking base 1 in step 2. In the second magnetic pole piece extraction and clamping claw mechanism 3, the feed clamping claw pressing plate 221 and the feed clamping claw lower plate 222 clamp the magnetic pole piece 6 cut by the cutting mechanism 5, and then the second linear motor drives to tilt and feed out the magnetic pole piece 6 along the second direction, the 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, transport stops (see Figure 4), the air cylinder in the second magnetic pole piece extraction and clamping claw mechanism 3 moves away from the feed clamping claw lower plate 222 in conjunction with the feed clamping claw pressing plate 221, unclams the magnetic pole piece 6, places the magnetic pole piece 6 on the pressed film on the stacking table 1, and the second linear motor drives to bring the second feed clamping claw 32 back to its initial position (see Figure 2) in step 3, The film oscillating mechanism 4 covers the magnetic pole piece 6 placed on the stacking base 1 in step 3, presses it with a pressing blade, and at this time the film oscillating mechanism 4 swings to the right of the stacking base 1 in step 4, The process includes repeating steps 1 through 4 to complete the stacking of cells.

[0030] In this invention, the pole pieces 6 cut by the first pole piece extraction and gripping claw mechanism 2 and the second pole piece extraction and gripping claw mechanism 3 are alternately fed onto the stacking table 1 for stacking, and the pole pieces 6 are fed at an angle of 10° inclined from the horizontal mounting surface 11, thereby effectively improving the alignment of the stacking and improving the quality of the cells. Furthermore, the left-right overlapping method allows for rapid stacking, improving the stacking speed and work efficiency.

[0031] While preferred embodiments of the present application have been described in detail above, the invention of the present application is not limited to the above embodiments, and persons skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present application, and all such equivalent modifications or substitutions are included within the scope limited to the claims of the present application.

[0032] (Note) (Note 1) A stacking apparatus comprising a stacking table and a first pole piece extraction and gripping claw mechanism and a second pole piece extraction and gripping claw mechanism provided on both sides of the stacking table for alternately transporting cut pole pieces to the stacking table, wherein the first pole piece extraction and gripping claw mechanism and the second pole piece extraction and gripping claw mechanism are provided symmetrically, the first pole piece extraction and gripping claw mechanism includes a first feed gripping claw and a first drive member, the first drive member is used to drive the first feed gripping claw to move linearly along a first direction, the stacking table includes a horizontal mounting surface for placing pole pieces, the first direction is provided inclined with respect to the horizontal mounting surface, and the second pole piece extraction and gripping claw mechanism is A lamination apparatus comprising two feed gripping claws and a second drive member, wherein the second drive member is used to drive the second feed gripping claw to move linearly along a second direction, the second direction is inclined with respect to the horizontal mounting surface, and the second direction is opposite to the inclination direction of the first direction, the lamination apparatus further comprising a film oscillating mechanism provided above the lamination table, the film oscillating mechanism is used to coat the magnetic pole pieces on the lamination table with film, and the film oscillating mechanism is capable of oscillating from side to side to avoid being transported by the first magnetic pole piece removal gripping claw mechanism and the second magnetic pole piece removal gripping claw mechanism.

[0033] (Note 2) The stacking apparatus according to Appendix 1, characterized in that the angle between the first direction and the horizontal mounting surface is 8 to 15°, and the angle between the second direction and the horizontal mounting surface is 8 to 15°.

[0034] (Note 3) The lamination apparatus according to Appendix 1, characterized in that a pressing blade module is provided in the film oscillating mechanism, and the pressing blade module is used to press the magnetic pole piece and the film.

[0035] (Note 4) The stacking apparatus according to Appendix 1, characterized in that the first drive member includes a first linear motor inclined along a first direction, the first feed gripping claw is attached to the movable end of the first linear motor, and the second drive member includes a second linear motor inclined along a second direction, the second feed gripping claw is attached to the movable end of the second linear motor.

[0036] (Note 5) The stacking apparatus according to Appendix 1, wherein the first feed clamping claw and the second feed clamping claw each include a mounting plate, a feed clamping claw pressing plate, a feed clamping claw lower plate, a first guide rail slider module, and a third drive member, wherein the feed clamping claw pressing plate is slidably connected to the mounting plate by the first guide rail slider module, the feed clamping claw lower plate is fixedly connected to the mounting plate, and the third drive member is used to drive the feed clamping claw pressing plate to move closer to or away from the feed clamping claw lower plate in order to clamp or unclam the magnetic pole pieces.

[0037] (Note 6) The stacking apparatus according to Appendix 5, wherein the third drive member includes a servo motor, an eccentric mechanism, a second guide rail slider module, and a support plate, the feed clamping claw pressing 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 it.

[0038] (Note 7) The stacking apparatus according to Appendix 6, wherein the first feed clamping claw and the second feed clamping claw further include a cushioning member, the cushioning member is connected between the feed clamping claw pressing plate and the support plate, and the cushioning member is used to provide an upward cushioning force when the feed clamping claw pressing plate moves downward.

[0039] (Note 8) The stacking apparatus according to Appendix 7, characterized in that 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 pressing plate.

[0040] (Note 9) Applicable to the lamination apparatus described in any one of the appendices 1 to 8, The first pole piece extraction and gripping claw mechanism feeds out the cut pole piece at an inclination along a first direction, places the pole piece on the horizontal mounting surface of the stacking platform, and the angle between the first direction and the horizontal mounting surface is 8 to 15°. The film oscillating mechanism covers the magnetic pole piece placed on the stacking platform with the film, presses it with a pressing blade, and at this time the film oscillating mechanism oscillates to the left of the stacking platform. The second pole piece extraction and gripping claw mechanism feeds out the cut pole piece at an angle along the second direction, places the pole piece on the film covering the previous pole piece, presses it with a pressing blade, and the angle between the second direction and the horizontal mounting surface is 8 to 15°. The film oscillating mechanism covers the magnetic pole piece placed on the stacking platform with the film, presses it with a pressing blade, and at this time the film oscillating mechanism oscillates to the right of the stacking platform. A stacking method characterized by comprising the step of repeating the above operation to complete the stacking of cells.

[0041] (Note 10) The stacking method according to Appendix 9, characterized in that when the first pole piece extraction and gripping claw mechanism feeds out a pole piece at an inclination along a first direction, when the front end of the pole piece reaches a right-side reference position on the horizontal mounting surface of the stacking table, the first pole piece extraction and gripping claw mechanism unclams the pole piece and lowers it, and when the second pole piece extraction and gripping claw mechanism feeds out a pole piece at an inclination along a second direction, when the front end of the pole piece reaches a left-side reference position on the horizontal mounting surface of the stacking table, the second pole piece extraction and gripping claw mechanism unclams the pole piece and lowers it. [Explanation of Symbols]

[0042] 1: Stacking base, 11: Horizontal mounting surface, 2: First magnetic pole piece extraction and clamping claw mechanism, 21: First drive member, 22: First feed clamping claw, 221: Feed clamping claw pressing plate, 222: Feed clamping claw lower plate, 223: Cushioning member, 224: Third drive member, 2241: Servo motor, 2242: Eccentricity mechanism, 2243: Support plate, 225: Base, 2251: Bottom plate, 2252: Mounting plate, 3: Second magnetic pole piece extraction and clamping claw mechanism, 31: Second drive member, 32: Second feed clamping claw, 4: Film oscillating mechanism, 5: Cutting mechanism, 6: Magnetic pole piece

Claims

1. A stacking apparatus comprising a stacking table and a first pole piece extraction and gripping claw mechanism and a second pole piece extraction and gripping claw mechanism provided on both sides of the stacking table for alternately transporting cut pole pieces to the stacking table, wherein the first pole piece extraction and gripping claw mechanism and the second pole piece extraction and gripping claw mechanism are provided symmetrically, the first pole piece extraction and gripping claw mechanism includes a first feed gripping claw and a first drive member, the first drive member is used to drive the first feed gripping claw to move linearly along a first direction, the stacking table includes a horizontal mounting surface for placing pole pieces, the first direction is provided inclined with respect to the horizontal mounting surface, and the second pole piece extraction and gripping claw mechanism is A lamination apparatus comprising two feed gripping claws and a second drive member, wherein the second drive member is used to drive the second feed gripping claw to move linearly along a second direction, the second direction is provided at an inclination with respect to the horizontal mounting surface, and the second direction is opposite to the inclination direction of the first direction, the lamination apparatus further comprising a film oscillating mechanism provided above the lamination table, the film oscillating mechanism is used to coat the magnetic pole pieces on the lamination table with film, and the film oscillating mechanism is capable of oscillating from side to side to avoid being transported by the first magnetic pole piece removal gripping claw mechanism and the second magnetic pole piece removal gripping claw mechanism.

2. The stacking apparatus according to claim 1, characterized in that the angle between the first direction and the horizontal mounting surface is 8 to 15°, and the angle between the second direction and the horizontal mounting surface is 8 to 15°.

3. The lamination apparatus according to claim 1, characterized in that a pressing blade module is provided in the film oscillating mechanism, and the pressing blade module is used to press the magnetic pole piece and the film.

4. The stacking apparatus according to claim 1, wherein the first drive member includes a first linear motor inclined along a first direction, the first feed gripping claw is attached to the movable end of the first linear motor, and the second drive member includes a second linear motor inclined along a second direction, the second feed gripping claw is attached to the movable end of the second linear motor.

5. The stacking apparatus according to claim 1, wherein the first feed clamping claw and the second feed clamping claw each include a mounting plate, a feed clamping claw pressing plate, a feed clamping claw lower plate, a first guide rail slider module, and a third drive member, wherein the feed clamping claw pressing plate is slidably connected to the mounting plate by the first guide rail slider module, the feed clamping claw lower plate is fixedly connected to the mounting plate, and the third drive member is used to drive the feed clamping claw pressing plate to move closer to or away from the feed clamping claw lower plate in order to clamp or unclam the magnetic pole pieces.

6. The stacking apparatus according to claim 5, wherein the third drive member includes a servo motor, an eccentric mechanism, a second guide rail slider module, and a support plate, the feed clamping claw pressing 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 it.

7. The stacking apparatus according to claim 6, wherein the first feed clamping claw and the second feed clamping claw further include a cushioning member, the cushioning member is connected between the feed clamping claw pressing plate and the support plate, and the cushioning member is used to provide an upward cushioning force when the feed clamping claw pressing plate moves downward.

8. The stacking apparatus according to claim 7, characterized in that 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 pressing plate.

9. Applicable to the lamination apparatus according to any one of claims 1 to 8, The first pole piece extraction and gripping claw mechanism feeds out the cut pole piece at an angle along a first direction, places the pole piece on the horizontal mounting surface of the stacking platform, and the angle between the first direction and the horizontal mounting surface is 8 to 15°. The film oscillating mechanism covers the magnetic pole piece placed on the stacking platform with the film, presses it with a pressing blade, and at this time the film oscillating mechanism oscillates to the left of the stacking platform. The second pole piece extraction and gripping claw mechanism feeds out the cut pole piece at an angle along the second direction, places the pole piece on the film covering the previous pole piece, presses it with a pressing blade, and the angle between the second direction and the horizontal mounting surface is 8 to 15°. The film oscillating mechanism covers the magnetic pole piece placed on the stacking platform with the film, presses it with a pressing blade, and at this time the film oscillating mechanism oscillates to the right of the stacking platform. A stacking method characterized by comprising the step of repeating the above operation to complete the stacking of cells.

10. The stacking method according to claim 9, characterized in that when the first pole piece extraction and gripping claw mechanism feeds out a pole piece at an inclination along a first direction, it stops transporting when the front end of the pole piece reaches a right-side reference position on the horizontal mounting surface of the stacking table, and at this time the first pole piece extraction and gripping claw mechanism unclams the pole piece and lowers it, and when the second pole piece extraction and gripping claw mechanism feeds out a pole piece at an inclination along a second direction, it stops transporting when the front end of the pole piece reaches a left-side reference position on the horizontal mounting surface of the stacking table, and at this time the second pole piece extraction and gripping claw mechanism unclams the pole piece and lowers it.

Images