Battery pole piece pressing die device

Abstract

The utility model provides a battery pole piece pressing mold device. The battery pole piece pressing mold device comprises a base, the lower die assembly is fixedly connected with the base; the module is located on the lower die assembly; the upper mold assembly is matched with the lower mold assembly through a module so as to be used for pressing the battery pole piece; wherein the lower die assembly comprises an outer frame and a lower die core, at least part of the lower die core is located in the die block, an inflation space is formed between the lower die core and the outer frame, and the distance between the lower die core and the die block is controlled by adjusting the gas amount in the inflation space, so that the battery pole pieces are pressed into different thicknesses. According to the battery pole piece pressing mold device, through mutual cooperation of the lower mold core and the upper mold assembly, the pressing parameters of the mold can be rapidly adjusted, the time for replacing or adjusting the mold is shortened, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of battery manufacturing, in particular to a battery pole piece pressing die device. BACKGROUND

[0002] The battery pole piece is an important key component inside the battery, widely used in consumer electronics, electric vehicles, energy storage systems and other fields. The battery pole piece is mainly responsible for energy storage and release, affecting the overall performance and application effect of the battery. The battery pole piece is one of the important elements to measure the quality of the battery. The material, processing method, downstream processing link and other aspects of the battery pole piece will directly affect the battery, ensuring that the battery meets the requirements of high efficiency, long service life, environmental protection and the like.

[0003] In the prior art, when the press machine produces thicker battery pole pieces, the pressing device is more difficult to press battery pole pieces of different thicknesses. In order to realize battery pole pieces of different thicknesses, different depth molds need to be replaced. However, the weight of the mold is large, the disassembly and assembly time is long, and frequent disassembly and replacement leads to reduced efficiency, high production cost, reduced production process flexibility, and cannot meet the production needs of battery pole pieces of different thicknesses.

[0004] Therefore, the structure of the pressing device in the prior art has further improvement space. CONTENT OF THE INVENTION

[0005] Therefore, in view of the technical problem in the prior art that the pressing device needs to frequently disassemble and replace the mold when producing battery pole pieces of different thicknesses, and the disassembly and assembly time is long, resulting in reduced production efficiency, the present application provides a battery pole piece pressing die device. By changing the structure of the pressing device, the mold does not need to be frequently replaced or disassembled, and battery pole pieces of different thicknesses can be pressed, thereby meeting the production needs of battery pole pieces of different thicknesses, improving production efficiency, saving production cost, and improving production flexibility and work efficiency.

[0006] To achieve the above purpose, the present application provides the following technical solution: a battery pole piece pressing die device, comprising:

[0007] a base;

[0008] a lower die assembly fixedly connected with the base;

[0009] a module located on the lower die assembly;

[0010] an upper die assembly cooperating with the lower die assembly through the module for pressing the battery pole piece;

[0011] The lower mold assembly includes an outer frame and a lower mold core, the lower mold core is at least partially located in the mold module, and an air-filled space is formed between the lower mold core and the outer frame.

[0012] Compared with the prior art, the battery tab pressing mold device of the application lays the electrode powder material uniformly in the mold, controls the thickness of the battery tab by adjusting the amount of electrode powder material, forms an air-filled space between the lower mold core and the elastic member, controls the distance between the lower mold core and the module by adjusting the amount of gas in the air-filled space, and presses the battery tab into different thicknesses, so that the mold can flexibly cope with battery tabs of different thicknesses, ensure that appropriate pressure is always maintained during the pressing process, reduce the need for frequent mold replacement, thereby reducing production costs and maintenance costs, and improving production efficiency.

[0013] Further, the lower mold assembly further includes at least two elastic members and a limiting block, the elastic members are fixedly connected to the base through the outer frame, the limiting block is fixedly connected to the inner wall of the outer frame, the limiting block protrudes towards the center line direction of the lower mold assembly, and the limiting block is used for limiting the lower mold core.

[0014] In this embodiment, by providing at least two elastic members, the elastic members can provide a buffering effect and elastic force during the pressing process, so that the module can be uniformly stressed, improving the quality and thickness of the battery tab.

[0015] Further, the upper mold assembly includes an upper mold pressing plate, an upper mold fixed plate and an upper mold core.

[0016] One side of the upper mold fixed plate is connected to the upper mold pressing plate, and the other side is connected to the upper mold core, the upper mold core is located on the side of the upper mold fixed plate facing the module, and the upper mold core cooperates with the lower mold core through the module to press the battery tab.

[0017] In this embodiment, the upper mold core cooperates with the lower mold core through the module to press the battery tab, and the cooperation of the upper mold core and the lower mold core ensures accurate alignment during the pressing process, effectively controls the pressing shape and thickness of the battery tab, and thus improves the pressing quality and stability.

[0018] Further, the module is provided with a cavity, the cavity is correspondingly provided with the upper mold core and the lower mold core, and the lower mold core is at least partially located in the cavity.

[0019] The diameter of the upper mold core is matched with the diameter of the cavity, and the diameter of the lower mold core is matched with the diameter of the cavity.

[0020] In the embodiment, the diameter of the upper mold core is matched with the diameter of the cavity, and the diameter of the lower mold core is matched with the diameter of the cavity, so that the upper mold core can completely enter the cavity during pressing, thereby realizing uniform pressure application and avoiding forming defects caused by mismatching.

[0021] Further, at least four elastic components are arranged on the base, and the four elastic components are respectively connected to the ends of the base.

[0022] The upper mold pressing plate is provided with a matching part, and the matching part is matched with the elastic component to realize positioning of the upper mold core and the cavity.

[0023] In the embodiment, by arranging at least four elastic components on the base, and connecting the four elastic components to the ends of the base, the pressure applied on the upper mold pressing plate can be uniformly distributed, so that uniform force is applied to each area during pressing, and local overload is avoided.

[0024] Further, the outer frame includes a bottom plate and four side plates, the side plates are fixedly connected to the side edges of the bottom plate, the elastic member is fixedly connected to the base through the bottom plate, and the limiting block is connected to the inner side wall of the side plate.

[0025] The outer side wall of the side plate is provided with an inflation port, the inflation port is in communication with the inflation space, and the inflation port is used for inflating the inflation space.

[0026] In the embodiment, by adjusting the gas inflow amount of the inflation port, the gas pressure in the inflation space can be flexibly controlled, so that the distance between the module and the cavity is adjusted to press the battery tab into different thicknesses.

[0027] Further, the lower mold core includes a support block and a lower die head, the support block is fixedly connected to the lower die head, and the lower die head is at least partially located in the cavity.

[0028] The support block is arranged in parallel with the module, and the support block can drive the lower die head to move up and down relative to the side plate.

[0029] In the embodiment, by arranging the support block and the lower die head, the support block can drive the lower die head to move up and down relative to the side plate, so that uniform pressure can be applied by the lower die head during pressing, and local excessive pressure can be prevented to cause damage or deformation of the battery tab.

[0030] Further, the upper mold assembly further includes at least two guide members, the guide members are connected to the upper mold pressing plate through the upper mold fixed plate, the guide members are symmetrically arranged along the center line of the upper mold pressing plate, and the guide members are located between the elastic components and the upper mold core.

[0031] The bottom plate is provided with a guide hole;

[0032] Or,

[0033] The base is provided with a guide hole;

[0034] The guide piece cooperates with the guide hole to realize positioning of the upper mold core and the cavity.

[0035] In this embodiment, the cooperation of the guide piece and the guide hole can effectively reduce the error in the mold pressing process, ensure the accurate alignment of the upper mold core and the cavity, and thus improve the pressing precision and product quality.

[0036] Further, the elastic assembly comprises a piston, a bushing and a guide column, the bushing is sleeved on the guide column, the piston is installed in the guide column, and the guide column is connected with the base;

[0037] The fitting piece is provided with a mounting groove for inserting the elastic assembly, and the elastic assembly is matched with the mounting groove.

[0038] In this embodiment, by arranging the piston, the bushing and the guide column, when the external equipment pressing process starts, the elastic assembly is in an uncompressed state, the upper mold assembly starts to move downward under the push of the external pressure equipment, when the upper mold assembly gradually approaches the mold, the elastic assembly starts to be compressed, and the piston starts to move. The piston can effectively transmit pressure and movement, ensuring that uniform pressure can be applied to the mold during the pressing process, and avoiding uneven internal pressure.

[0039] Further, the elastic assembly further comprises a snap spring and a dustproof sleeve, the dustproof sleeve is connected with the bushing, and the snap spring is located between the dustproof sleeve and the piston;

[0040] The guide column is sleeved with a spring.

[0041] In this embodiment, by sleeving the spring on the guide column, the spring can provide additional elastic support, enhance the buffering capacity of the elastic assembly, absorb the impact force generated during the pressing process, and also can be elastically reset according to different stages of pressing, so as to effectively realize the reset function of the elastic assembly, improve the stability and flexibility of the entire pressing mold device, and ensure that the elastic assembly can be timely and accurately restored to the initial state at various stages, so as to maintain the normal operation of the entire structure, and protect the mold and equipment. BRIEF DESCRIPTION OF DRAWINGS

[0042] Figure 1 is a schematic diagram of the three-dimensional structure of the battery pole piece pressing mold device provided in an embodiment of the present application;

[0043] Figure 2 is Figure 1 A-A cross-sectional structure schematic diagram in

[0044] Reference signs:

[0045] 1, base; 2, lower mold assembly; 3, upper mold assembly; 4, module; 5, elastic assembly;

[0046] 21, outer frame; 22, lower mold core; 23, elastic piece; 24, limiting block;

[0047] 31, upper mold pressing plate; 32, upper mold fixed plate; 33, upper mold core; 34, matching piece; 35, guide piece;

[0048] 41, cavity; 51, bushing; 52, guide column; 53, dust cover; 54, spring;

[0049] 211, bottom plate; 212, side plate; 221, support block; 222, lower die head; 2121, inflation port. DETAILED DESCRIPTION

[0050] In order for those skilled in the art to better understand the technical solutions of the present disclosure, the present disclosure will be described in detail, clearly and completely in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present disclosure and do not limit the present disclosure.

[0051] In the description of the present application, if the first, second, only for the purpose of distinguishing technical features, and can not be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the order of the indicated technical features.

[0052] Those skilled in the art should understand that in the disclosure of the present application, the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, so the above terms cannot be understood as limiting the present application.

[0053] The present application will be further described in detail below in combination with the drawings, see Figures 1 to 2 Description.

[0054] The battery pole piece pressing mold device provided by the embodiment is applied in the field of battery manufacturing, and specifically, Figures 1 to 2As shown, it comprises a base 1, a lower mold assembly 2, a module 4 and an upper mold assembly 3, the lower mold assembly 2 is fixedly connected with the base 1, the module 4 is located on the lower mold assembly 2, the lower mold assembly 2 is used for supporting the module 4, and the upper mold assembly 3 is used for providing a pressing force. The upper mold assembly 3 cooperates with the lower mold assembly 2 through the module 4 to press the battery pole piece. The lower mold assembly 2 comprises an outer frame 21 and a lower mold core 22, the lower mold core 22 is at least partially located in the module 4, and the pressing parameters of the mold can be quickly adjusted through the cooperation between the lower mold core 22 and the elastic member 23, thereby reducing the time for replacing or adjusting the mold and improving the production efficiency.

[0055] In the embodiment, an inflation space is formed between the lower mold core 22 and the elastic member 23, the distance between the lower mold core 22 and the elastic member 23 is controlled by adjusting the amount of gas in the inflation space, so as to press the battery pole piece into different thicknesses, the electrode powder material is uniformly laid in the mold, the thickness of the battery pole piece is controlled by adjusting the amount of the electrode powder material, and the distance between the lower mold core 22 and the module 4 is controlled by adjusting the amount of gas in the inflation space, so as to press the battery pole piece into different thicknesses. The mold can flexibly cope with battery pole pieces of different thicknesses, ensure that appropriate pressure is maintained during the pressing process, reduce the need for frequent replacement of the mold, thereby reducing production costs and maintenance costs, and improving production efficiency. Even a thick electrode with a thickness of more than 15 mm can be pressed, the strength is high and the thickness is uniform, the quality of the battery pole piece is improved, the production flexibility and work efficiency are improved, and no organic solvent is involved in the production, which is safe and environmentally friendly.

[0056] Further, as shown in Figure 2 The lower mold assembly 2 further comprises at least two elastic members 23 and a limiting block 24, the elastic members 23 are fixedly connected with the base 1 through the outer frame 21, the limiting block 24 is fixedly connected with the inner side wall of the outer frame 21, the limiting block 24 protrudes towards the center line direction of the lower mold assembly 2, the module 4 is placed on the limiting block 24, and the elastic members 23 can provide a buffering effect and an elastic force during the pressing process. When the lower mold core 22 is naturally lowered due to the influence of the amount of gas in the inflation space, the lower mold core 22 collides with the elastic member 23, and the elastic force of the elastic member 23 can pop up the lower mold core 22. When the lower mold core 22 moves away from the elastic member 23, the limiting block 24 is used for limiting the lower mold core 22, so as to reduce the friction between the lower mold core 22 and the module 4 caused by a large acting force of the lower mold core 22, reduce wear and tear, and prolong the service life of the module 4 and the lower mold core 22.

[0057] As shown in Figure 2As shown, the upper die assembly 3 includes an upper die pressing plate 31, an upper die fixed plate 32, and an upper die core 33. One side of the upper die fixed plate 32 is connected with the upper die pressing plate 31, and the other side of the upper die fixed plate 32 is connected with the upper die core 33. The upper die core 33 is located on the side of the upper die fixed plate 32 facing the module 4, and protrudes towards the module 4. The upper die core 33 cooperates with the lower die core 22 through the module 4 to press the battery tab. The upper die core 33 is fixed at the middle position of the upper die pressing plate 31. The cooperation between the upper die core 33 and the lower die core 22 ensures accurate alignment during pressing, effectively controls the pressing shape and thickness of the battery tab, and improves the pressing quality and stability.

[0058] The module 4 is provided with a cavity 41 corresponding to the upper die core 33 and the lower die core 22. The lower die core 22 is at least partially located in the cavity 41, and provides stable support to ensure that the battery tab does not displace during pressing, preventing damage or deformation caused by excessive local pressure. The diameter of the upper die core 33 is matched with the diameter of the cavity 41, and the diameter of the lower die core 22 is matched with the diameter of the cavity 41, ensuring that the upper die core 33 can completely enter the cavity 41 during pressing, thereby achieving uniform pressure and avoiding forming defects of the battery tab caused by mismatch.

[0059] As shown in Figure 2 The outer frame 21 includes a bottom plate 211 and four side plates 212. The side plates 212 are fixedly connected to the side edges of the bottom plate 211. The elastic member 23 is fixedly connected to the base 1 through the bottom plate 211. The limiting block 24 is connected to the inner side wall of the side plate 212, which can effectively limit the movement of the lower die core 22, ensuring that the mold maintains the correct position during pressing and preventing uneven pressing caused by displacement. The outer side wall of the side plate 212 is provided with an inflation port 2121, which is in the form of a tapered structure and communicates with the inflation space. The inflation port 2121 is used to inflate the inflation space. By adjusting the gas inflow of the inflation port 2121, the gas pressure in the inflation space can be flexibly controlled, thereby adjusting the distance between the module 4 and the cavity 41, and pressing battery tabs of different thicknesses.

[0060] Further, the lower mold core 22 comprises a support block 221 and a lower mold head 222, the support block 221 is fixedly connected with the lower mold head 222, and the lower mold head 222 is at least partially located in the cavity 41, wherein the size of the cavity 41 is designed according to the size of the lower mold head 222, the support block 221 is arranged in parallel with the module 4, the support block 221 can drive the lower mold head 222 to move up and down relative to the side plate 212, and the uniform pressure applied by the lower mold head 222 during the pressing process can be ensured, so that the damage or deformation of the battery pole piece caused by excessive local pressure can be prevented. And the formed battery pole piece can be taken out by controlling the gas amount of the inflation space and being pushed out by the lower mold head 222, so that the finished product of the battery pole piece can be obtained.

[0061] Further, the upper mold assembly 3 further comprises at least two guide pieces 35, the guide pieces 35 are connected with the upper mold pressing plate 31 through the upper mold fixed plate 32, the guide pieces 35 are symmetrically arranged along the center line of the upper mold pressing plate 31, the uniform stress during the pressing process can be ensured, the guide pieces 35 are located between the elastic assembly 5 and the upper mold core 33, the guide pieces 35 are located on the side of the two elastic assemblies 5 close to the upper mold pressing plate 31, the two elastic assemblies 5 and the guide pieces 35 form a triangular structure, and the stability of the upper mold assembly 3 during the pressing process is enhanced. Among them, the bottom plate 211 is provided with a guide hole, or the base 1 is provided with a guide hole, the guide pieces 35 cooperate with the guide hole to realize the positioning of the upper mold core 33 and the cavity 41, and the cooperation of the guide pieces 35 and the guide hole can effectively reduce the error during the mold pressing process, and the accurate positioning of the upper mold core 33 and the cavity 41 can be ensured, so as to improve the pressing precision and product quality.

[0062] As Figure 2As shown, the base 1 is provided with at least four elastic components 5, which are nitrogen springs. The four elastic components 5 are respectively connected to the ends of the base 1 and fixed at the four corners of the base 1, maintaining left-right symmetry. This allows for the even distribution of pressure applied to the upper molding plate 31, ensuring uniform force distribution in each area during the pressing process and avoiding local overload. The upper molding plate 31 is provided with mating parts 34, which are fixed at the four corners of the upper molding plate 31, maintaining left-right symmetry. The mating parts 34 cooperate with the elastic components 5 to achieve precise positioning of the upper mold core 33 and the cavity 41, ensuring the accuracy of the battery electrode sheet during the molding process. Furthermore, the elastic component 5 includes a piston, a bushing 51, and a guide post 52. The bushing 51 is fitted onto the guide post 52, reducing friction between the piston and the guide post 52 and lowering wear. The piston is installed inside the guide post 52, which is connected to the base 1. At the start of the external equipment pressing process, the elastic component 5 is in an uncompressed state. The upper mold assembly 3 begins to move downwards under the push of the external pressure equipment. As the upper mold assembly 3 gradually approaches the module 4, the elastic component 5 begins to be compressed, and the piston begins to move. The piston can effectively transmit pressure and movement, ensuring that pressure is applied evenly to the mold during the pressing process and avoiding uneven internal pressure. The mating part 34 is provided with a mounting groove for the elastic component 5 to be inserted, and the elastic component 5 is adapted to the mounting groove.

[0063] The elastic component 5 also includes a retaining ring and a dust cover 53. The dust cover 53 is connected to the bushing 51 and can effectively prevent dust and impurities from entering the interior of the elastic component 5, reducing wear and corrosion, thereby extending the service life of the component. The retaining ring is located between the dust cover 53 and the piston, which can effectively fix the position of the piston and prevent it from shifting during operation, ensuring the stability and reliability of the component. Among them, a spring 54 is sleeved on the guide post 52. The spring 54 can provide additional elastic support, enhance the buffering capacity of the elastic component 5, absorb the impact force generated during the pressing process, and can also elastically reset according to different stages of pressing by the elastic force it generates. It can effectively realize the reset function of the elastic component 5, improve the stability and flexibility of the entire pressing die device, and ensure that the elastic component 5 can return to the initial state in a timely and accurate manner under various stages of the pressing die device, thereby maintaining the normal operation of the entire structure and protecting the die and equipment.

[0064] Working principle: Adjust the gas volume in the inflation space to determine the depth between the cavity 41 and the lower die head 222. Spread the electrode powder material evenly in the cavity 41. Slowly insert the upper die core 33 of the upper die assembly 3 into the cavity 41. At the same time, align the guide 35 with the guide hole and insert it. The elastic component 5 corresponds to the mounting groove and is inserted. Turn on the external equipment to apply the specified pressure to the upper die platen 31 and hold the pressure for a specified time range. After the press stops working, the elastic component 5 will actively pop up the upper die assembly 3 after being compressed. At this time, the mold opens. By adjusting the gas volume in the inflation space, the lower die head 222 pops the battery electrode sheet out of the cavity 41, and the pressed battery electrode sheet is obtained. The whole operation is completed.

[0065] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The descriptions of the embodiments above are only for the purpose of helping to understand the present application and its core ideas. It should be noted that those skilled in the art can make several improvements and modifications to the present application without departing from the principles of the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A battery electrode pressing mold device, characterized in that, include: Base (1); The lower mold assembly (2) is fixedly connected to the base (1); Module (4), which is located on the lower mold assembly (2); Upper mold assembly (3), which cooperates with lower mold assembly (2) through module (4) to press battery electrode sheets; The lower mold assembly (2) includes an outer frame (21) and a lower mold core (22). The lower mold core (22) is at least partially located inside the module (4). An inflation space is formed between the lower mold core (22) and the outer frame (21). The distance between the lower mold core (22) and the module (4) is controlled by adjusting the amount of gas in the inflation space, so as to press the battery electrode into different thicknesses.

2. The battery electrode pressing mold device according to claim 1, characterized in that, The lower mold assembly (2) also includes at least two elastic elements (23) and a limiting block (24). The elastic elements (23) are fixedly connected to the base (1) through the outer frame (21). The limiting block (24) is fixedly connected to the inner side wall of the outer frame (21). The limiting block (24) protrudes toward the center line of the lower mold assembly (2). The limiting block (24) is used to limit the lower mold core (22).

3. The battery electrode pressing mold device according to claim 2, characterized in that, The upper mold assembly (3) includes an upper mold pressure plate (31), an upper mold fixing plate (32), and an upper mold core (33). The upper mold fixing plate (32) is connected to the upper mold pressing plate (31) on one side and to the upper mold core (33) on the other side. The upper mold core (33) is located on the side of the upper mold fixing plate (32) facing the module (4). The upper mold core (33) cooperates with the lower mold core (22) through the module (4) to press the battery electrode sheet.

4. The battery electrode pressing mold device according to claim 3, characterized in that, The module (4) is provided with a cavity (41), the cavity (41) is correspondingly provided with the upper mold core (33) and the lower mold core (22), and the lower mold core (22) is at least partially located in the cavity (41); The diameter of the upper mold core (33) is adapted to the diameter of the cavity (41), and the diameter of the lower mold core (22) is adapted to the diameter of the cavity (41).

5. The battery electrode pressing mold device according to claim 4, characterized in that, The base (1) is provided with at least four elastic components (5), and the four elastic components (5) are respectively connected to the ends of the base (1); The upper mold plate (31) is provided with a mating part (34), which is in conjunction with the elastic component (5) to achieve the positioning of the upper mold core (33) and the cavity (41).

6. The battery electrode pressing mold apparatus according to claim 5, characterized in that, The outer frame (21) includes a base plate (211) and four side plates (212). The side plates (212) are fixedly connected to the side of the base plate (211). The elastic element (23) is fixedly connected to the base (1) through the base plate (211). The limiting block (24) is connected to the inner wall of the side plate (212). The side plate (212) has an air inlet (2121) on its outer side wall. The air inlet (2121) is connected to the inflation space and is used to inflate the inflation space.

7. The battery electrode pressing mold apparatus according to claim 6, characterized in that, The lower mold core (22) includes a support block (221) and a lower mold head (222), the support block (221) and the lower mold head (222) are fixedly connected, and the lower mold head (222) is at least partially located in the cavity (41); The support block (221) is arranged parallel to the module (4), and the support block (221) can drive the lower mold head (222) to move up and down relative to the side plate (212).

8. The battery electrode pressing mold apparatus according to claim 7, characterized in that, The upper mold assembly (3) further includes at least two guide members (35), which are connected to the upper mold pressure plate (31) through the upper mold fixing plate (32). The guide members (35) are symmetrically arranged along the center line of the upper mold pressure plate (31) and are located between the elastic component (5) and the upper mold core (33). The base plate (211) is provided with guide holes; or, The base (1) is provided with a guide hole; The guide member (35) cooperates with the guide hole to achieve the positioning of the upper mold core (33) and the cavity (41).

9. The battery electrode pressing mold apparatus according to claim 5, characterized in that, The elastic component (5) includes a piston, a bushing (51) and a guide post (52). The bushing (51) is sleeved on the guide post (52), the piston is installed inside the guide post (52), and the guide post (52) is connected to the base (1). The mating part (34) is provided with a mounting groove for the elastic component (5) to be inserted, and the elastic component (5) is adapted to the mounting groove.

10. The battery electrode pressing mold apparatus according to claim 9, characterized in that, The elastic component (5) also includes a retaining ring and a dust cover (53), the dust cover (53) being connected to the bushing (51), and the retaining ring being located between the dust cover (53) and the piston; A spring (54) is sleeved on the guide post (52).

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