Pole piece punching cutter die

Abstract

The utility model provides a pole piece punching cutting die, which relates to the technical field of battery processing, and comprises a bottom plate and a pole piece punching mechanism, the pole piece punching mechanism is arranged on the upper side of the bottom plate, the pole piece punching mechanism comprises a pole piece stress assembly and a pole piece shaping assembly, the pole piece stress assembly is arranged on the inner side of the bottom plate, and the pole piece shaping assembly is arranged on the inner side of the bottom plate. Through the arrangement of the pole piece stamping mechanism, when the pole piece stamping mechanism needs to be used, a corresponding limiting frame can be clamped into the bottom plate according to the size and the shape of a pole piece, so that targeted cutting can be conveniently carried out according to the shape of the pole piece, the cutting stability is improved, and due to stress damping, after a shaping cone is stressed, the shaping cone can be fixed to the bottom plate, and the pole piece can be shaped. And short-distance rigid damping is carried out according to the magnitude of force, so that a certain amount of buffering can be provided while the plasticity is not influenced, the damage caused by too strong extrusion force on the pole piece is reduced, and the shaping cone can be replaced according to requirements, so that the requirements of more types of batteries are met.

Description

Technical Field

[0001] The utility model relates to the technical field of battery processing, in particular to a pole piece punching die. Background Art

[0002] The pole piece punching die is a die used for precise punching of pole pieces in the battery industry. It is usually composed of an upper die and a lower die. The upper die is fixed on the upper slider of the punching device, and the lower die is fixed on the lower slider. During the punching process, the upper and lower sliders move relative to each other, so that the upper and lower die cuts the pole pieces. This die has the characteristics of high precision, high speed and high efficiency. It can ensure the dimensional accuracy and shape accuracy of the pole piece punching, and meet the strict requirements for pole piece quality in battery production. At the same time, by replacing die cutters of different specifications, pole pieces of different shapes and sizes can be punched, which has good versatility and adaptability.

[0003] After searching, the document of announcement number "CN218049856U" mentioned that "the utility model discloses a pole piece punching die, including a base, a receiving seat fixedly installed on the top of the base, two discharge ports symmetrically opened on the bottom of both sides of the receiving seat, a die plate seat is installed on the bottom surface of the inner part of the receiving seat, a barrier body is symmetrically arranged on the outer side of the die plate seat, one end of the barrier body away from the die plate seat is connected to the side wall of the receiving seat as a whole, the barrier body is perpendicular to the discharge port, a die plate body is installed on the upper end of the die plate seat, a first forming groove is symmetrically arranged on the inner side of the die plate body, a second forming groove is symmetrically arranged on one side of the first forming groove, and a partition part is arranged on the outer side of the die plate body. The bottom of the partition part is connected to the cutter die seat, and the cutter die body is located inside the receiving seat. When in use, the cutter die and cutter die seat of the above structure are set. A piece of electrode raw material can be punched out into more than two electrode sheets at a time, and the common edge of the two adjacent electrode sheets does not produce tail materials, which can significantly improve the efficiency of punching and reduce the tail materials generated by cutting. The tail materials generated during the operation can also be cleaned up in time. However, in the process of electrode punching, the shaping of the electrode is also extremely important. If the shape of the electrode is not finalized, it is easy to cause loopholes in the subsequent battery assembly process, which will lead to the problem that the battery assembly cannot meet the qualified requirements.

[0004] Therefore, we provide a pole piece punching die to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a pole piece punching die to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a pole piece punching die, comprising a base plate and a pole piece punching mechanism, wherein the pole piece punching mechanism is installed on the upper side of the base plate;

[0007] The pole piece stamping mechanism includes a pole piece force-bearing component and a pole piece shaping component. The pole piece force-bearing component is arranged on the inner side of the base plate, and the pole piece shaping component is installed on the upper side of the base plate.

[0008] Preferably, the pole piece force-bearing component includes a limit frame, a force damper, a shaping cone, a rubber plate and a pole piece guide groove. A limit frame is provided on the inner side of the base plate, a force damper is installed on the upper side of the limit frame, a shaping cone is installed on the upper side of the force damper, rubber plates are installed on the left and right sides of the shaping cone, and a pole piece guide groove is installed on the right side of the rubber plate.

[0009] Preferably, the force damper and the limiting frame are welded, and the force damper and the limiting frame are equidistantly distributed.

[0010] Preferably, the shaping cone and the limiting frame are connected by a slot, and the inner diameter of the shaping cone is smaller than the inner diameter of the limiting frame.

[0011] Preferably, the pole piece forming assembly includes a top frame, a top plate, a telescopic pump, a hydraulic rod and a forming frame. The top frame is installed on the upper side of the bottom plate, the top plate is installed on the upper side of the top frame, a telescopic pump is provided in the middle of the top plate, a hydraulic rod is provided on the lower side of the telescopic pump, and the forming frame is installed on the lower side of the hydraulic rod.

[0012] Preferably, the forming frame and the hydraulic rod are connected by screws, and the forming frame and the shaping cone are tightly fitted.

[0013] Preferably, a cutting assembly is installed on the outside of the hydraulic rod, and the cutting assembly includes a cutting hydraulic pump, a cutting rod and a cutting blade. The outside of the hydraulic rod is welded with a cutting hydraulic pump, and a cutting rod is provided on the lower side of the cutting hydraulic pump. A cutting blade is provided on the lower side of the cutting rod, and the cutting blade corresponds to the rubber sheet one by one.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. Through the setting of the pole piece stamping mechanism, when it is needed, the corresponding limit frame can be inserted into the bottom plate according to the size and shape of the pole piece, so that it is convenient to carry out targeted cutting according to the shape of the pole piece, and the cutting stability is improved. The force damping can allow the shaping cone to perform short-distance rigid shock absorption according to the size of the force after being subjected to force. This can provide a certain amount of buffering without affecting the plasticity, thereby reducing the damage caused by excessive extrusion force on the pole piece. The shaping cone can be replaced as required to meet the needs of more types of batteries.

[0016] 2. Through the setting of the pole piece stamping mechanism, when needed, the telescopic pump can provide extrusion power to the forming frame through the hydraulic rod, so that the battery pole piece can achieve a plastic effect by extrusion, and is suitable for multiple punching. The forming frame and the forming cone are matched with each other, so as to achieve the corresponding shape by extrusion, reducing the problem of shape uncertainty caused by manual bending. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall appearance structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the pole piece force-bearing component of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the pole piece stamping mechanism of the utility model;

[0020] Figure 4 This is a schematic diagram of the cutting component structure of the present utility model.

[0021] Numbers in the figure: 1, bottom plate; 2, pole piece stamping mechanism; 21, pole piece force component; 211, limit frame; 212, force damping; 213, shaping cone; 214, rubber plate; 215, pole piece guide groove; 22, pole piece shaping component; 221, top frame; 222, top plate; 223, telescopic pump; 224, hydraulic rod; 225, forming frame; 3, cutting component; 31, cutting hydraulic pump; 32, cutting rod; 33, cutting blade. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Example 1

[0024] See also Figure 1-4 As shown, the utility model provides a technical solution: a pole piece punching die, comprising a base plate 1 and a pole piece punching mechanism 2, wherein the pole piece punching mechanism 2 is installed on the upper side of the base plate 1;

[0025] The pole piece stamping mechanism 2 includes a pole piece force-bearing component 21 and a pole piece shaping component 22 . The pole piece force-bearing component 21 is arranged on the inner side of the base plate 1 , and the pole piece shaping component 22 is installed on the upper side of the base plate 1 .

[0026] Furthermore, the pole piece force component 21 includes a limit frame 211, a force damper 212, a shaping cone 213, a rubber plate 214 and a pole piece guide groove 215. A limit frame 211 is arranged on the inner side of the base plate 1, and a force damper 212 is installed on the upper side of the limit frame 211. A shaping cone 213 is installed on the upper side of the force damper 212. Rubber plates 214 are installed on the left and right sides of the shaping cone 213, and a pole piece guide groove 215 is installed on the right side of the rubber plate 214. When needed, the corresponding limit frame 211 can be inserted into the base plate 1 according to the size and shape of the pole piece, so that targeted cutting can be carried out according to the shape of the pole piece, thereby improving cutting stability.

[0027] Furthermore, the force damper 212 and the limit frame 211 are welded, and the force damper 212 and the limit frame 211 are equidistantly distributed. When needed, the force damper 212 can allow the shaping cone 213 to perform short-distance rigid shock absorption according to the magnitude of the force after being subjected to force. This can provide a certain amount of buffering without affecting the plasticity, thereby reducing damage to the pole piece caused by excessive squeezing force.

[0028] Furthermore, the shaping cone 213 is connected to the limiting frame 211 by a card slot, and the inner diameter of the shaping cone 213 is smaller than the inner diameter of the limiting frame 211. When needed, the shaping cone 213 can be replaced as required to meet the needs of more types of batteries.

[0029] Furthermore, the pole piece shaping assembly 22 includes a top frame 221, a top plate 222, a telescopic pump 223, a hydraulic rod 224 and a forming frame 225. The top frame 221 is installed on the upper side of the bottom plate 1, the top plate 222 is installed on the upper side of the top frame 221, the telescopic pump 223 is arranged in the middle of the top plate 222, the hydraulic rod 224 is arranged on the lower side of the telescopic pump 223, and the forming frame 225 is installed on the lower side of the hydraulic rod 224. When needed, the telescopic pump 223 can provide extrusion power to the forming frame 225 through the hydraulic rod 224, so that the battery pole piece can achieve a plastic effect by extrusion and is suitable for multiple punching.

[0030] Furthermore, the forming frame 225 and the hydraulic rod 224 are connected by screws, and the forming frame 225 and the shaping cone 213 fit tightly together. When needed, the forming frame 225 and the shaping cone 213 are matched with each other, so as to achieve the stamping into the corresponding shape by extrusion, reducing the problem of shape uncertainty caused by manual bending.

[0031] Example 2

[0032] See also Figure 1 、 Figure 3 and Figure 4As shown, in contrast to Example 1, as another embodiment of the present invention, a cutting assembly 3 is installed on the outside of the hydraulic rod 224, and the cutting assembly 3 includes a cutting hydraulic pump 31, a cutting rod 32 and a cutting blade 33. The outside of the hydraulic rod 224 is welded with a cutting hydraulic pump 31, and the lower side of the cutting hydraulic pump 31 is provided with a cutting rod 32, and the lower side of the cutting rod 32 is provided with a cutting blade 33, and the cutting blade 33 corresponds to the rubber plate 214 one by one. When it is needed, the cutting hydraulic pump 31 will move downward with the hydraulic rod 224 until the cutting blade 33 contacts the electrode to be cut. As the pressure increases, the cutting hydraulic pump 31 will generate pressure on the cutting blade 33 through the cutting rod 32, so that the excess part of the electrode is cut off to ensure the consistency of the electrode size.

[0033] Working principle: A pole piece punching die is moved to the working position. When in use, the first step is to place the base plate 1 in the position where it needs to be used, and then install the limit frame 211 that matches the pole piece to be processed into the base plate 1, and then pass the pole piece through the pole piece guide groove 215 and place it on the forming cone 213. In the second step, the telescopic pump 223 in the top plate 222 on the top frame 221 pushes the forming frame 225 downward through the hydraulic rod 224 to plasticize the pole piece. At the same time, the force damping 212 will buffer the received force to a certain extent. Finally, the cutting hydraulic pump 31 will push the cutting blade 33 through the cutting rod 32 to cut the pole piece, and the rubber plate 214 is used to pad the cutting blade 33. In this way, the use process of a pole piece punching die is completed.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pole piece punching die, comprising a base plate (1) and a pole piece punching mechanism (2), characterized in that: A pole piece punching mechanism (2) is installed on the upper side of the base plate (1); The pole piece stamping mechanism (2) comprises a pole piece force-bearing component (21) and a pole piece shaping component (22); the pole piece force-bearing component (21) is provided on the inner side of the base plate (1), and the pole piece shaping component (22) is installed on the upper side of the base plate (1).

2. A pole piece punching die according to claim 1, characterized in that: The pole piece force component (21) comprises a limiting frame (211), a force damper (212), a shaping cone (213), a rubber plate (214) and a pole piece guide groove (215); the limiting frame (211) is provided on the inner side of the bottom plate (1); the force damper (212) is installed on the upper side of the limiting frame (211); the shaping cone (213) is installed on the upper side of the force damper (212); the rubber plates (214) are installed on both the left and right sides of the shaping cone (213); and the pole piece guide groove (215) is installed on the right side of the rubber plate (214).

3. The electrode punching die according to claim 2, characterized in that: The force damper (212) and the limiting frame (211) are welded, and the force damper (212) and the limiting frame (211) are arranged at equal distances.

4. The electrode punching die according to claim 2, characterized in that: The shaping cone (213) and the limiting frame (211) are connected via a slot, and the inner diameter of the shaping cone (213) is smaller than the inner diameter of the limiting frame (211).

5. The electrode punching die according to claim 1, characterized in that: The pole piece shaping assembly (22) comprises a top frame (221), a top plate (222), a telescopic pump (223), a hydraulic rod (224) and a forming frame (225); the top frame (221) is mounted on the upper side of the bottom plate (1); the top plate (222) is mounted on the upper side of the top frame (221); the telescopic pump (223) is arranged in the middle of the top plate (222); the hydraulic rod (224) is arranged on the lower side of the telescopic pump (223); and the forming frame (225) is mounted on the lower side of the hydraulic rod (224).

6. The electrode punching die according to claim 5, characterized in that: The forming frame (225) and the hydraulic rod (224) are connected by screws, and the forming frame (225) and the shaping cone (213) are tightly fitted.

7. The electrode punching die according to claim 5, characterized in that: A cutting assembly (3) is installed on the outer side of the hydraulic rod (224), and the cutting assembly (3) includes a cutting hydraulic pump (31), a cutting rod (32) and a cutting blade (33). The outer side of the hydraulic rod (224) is welded with a cutting hydraulic pump (31), the lower side of the cutting hydraulic pump (31) is provided with a cutting rod (32), and the lower side of the cutting rod (32) is provided with a cutting blade (33), and the cutting blade (33) corresponds to the rubber plate (214) one by one.

Images