CN210877003U

CN210877003U - Pole piece punching cutting die

Info

Publication number: CN210877003U
Application number: CN201921884629.1U
Authority: CN
Inventors: 许建泰
Original assignee: New Dongtai Xiamen Laser Knife Mould Co ltd
Current assignee: New Dongtai Xiamen Laser Knife Mould Co ltd
Priority date: 2019-11-04
Filing date: 2019-11-04
Publication date: 2020-06-30
Anticipated expiration: 2029-11-04

Abstract

The utility model discloses a die-cut cutting die of pole piece relates to the die-cut cutting die technical field of pole piece, for solving current die-cut cutting die of pole piece simple structure, in the use, receive the impact force influence easily and lead to the problem of damage. The inside of accepting the seat is provided with the holding tank, the internally mounted of holding tank has the cutting die holder, and the upper end of cutting die holder extends to the outside of holding tank, buffer gear is installed to the below of cutting die holder, buffer gear is including accepting board, bottom plate and high-pressure spring, the bottom plate is installed to the below of accepting the board, accept and install high-pressure spring between board and the bottom plate, the inside of cutting die holder is provided with the mounting groove, the bottom of mounting groove is provided with the fixed slot, the cutting die main part is installed to the top of fixed slot, and inside the lower extreme of cutting die main part extends to the fixed slot to be connected with the fixed slot interference.

Description

Pole piece punching cutting die

Technical Field

The utility model relates to a die-cut cutting die technical field of pole piece specifically is a die-cut cutting die of pole piece.

Background

The lithium ion battery is a new generation of green high-energy battery with excellent performance, and has become one of the key points of high and new technology development. The lithium battery has the advantages of high energy density, long cycle life, small self-discharge rate, no memory effect, environmental protection and wide application, so the lithium battery has very wide prospect. The main constituent materials of the lithium ion battery include electrolyte, isolating material, positive and negative electrode materials, etc., and the positive and negative electrode materials are usually made into sheets, referred to as pole pieces for short. And the pole piece is punched by using a pre-designed punching cutting die to obtain the pole piece with the size and the shape required by the process.

However, the existing pole piece punching cutting die is simple in structure and is easily damaged due to impact force in the using process, so that the existing requirements are not met, and the pole piece punching cutting die is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a die-cut cutting die of pole piece to the die-cut cutting die of pole piece simple structure who proposes in solving above-mentioned background art, in the use, receive the impact force influence easily and lead to the problem of damage.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a die-cut cutting die of pole piece, is including accepting the seat, the inside of accepting the seat is provided with the holding tank, the internally mounted of holding tank has the cutting die holder, and the upper end of cutting die holder extends to the outside of holding tank, buffer gear is installed to the below of cutting die holder, buffer gear is including accepting board, bottom plate and high-pressure spring, the bottom plate is installed to the below of accepting the board, accept and install high-pressure spring between board and the bottom plate.

Preferably, the inside of cutting die holder is provided with the mounting groove, the bottom of mounting groove is provided with the fixed slot, the cutting die main part is installed to the top of fixed slot, and the lower extreme of cutting die main part extends to inside the fixed slot to be connected with the fixed slot interference.

Preferably, the upper end of the cutting die main body is provided with a cutting edge, the cutting edge and the cutting die main body are of an integral structure, a first forming groove is formed in the inner side of the cutting die main body, and second forming grooves are formed in two sides of the first forming groove.

Preferably, the holding tank outside all around is provided with the rolling groove, and the rolling groove is provided with a plurality of, the internally mounted of rolling groove has the ball.

Preferably, the lower ends of the two sides of the bearing seat are provided with fixing plates, the fixing plates and the bearing seat are of an integral structure, and the fixing plates are internally provided with four fixing holes.

Preferably, the high-pressure spring is fixedly connected with the bearing plate and the bottom plate, the bearing plate is connected with the cutter die holder through a bolt, and the bottom plate is connected with the bearing seat through a bolt.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a buffer gear is installed to the below of die holder, and buffer gear reaches the effect of buffering including accepting board, bottom plate and high-pressure spring, mainly relying on the good elasticity of compression spring self and the ability of recovering the deformation. When punching, can produce an impact force, high-pressure spring receives the extrusion and can produce a reaction force to kick-back, consume, slow down the impact force that receives at this process, and then weaken the impact force to the influence of cutting die main part, the life of extension cutting die main part.

2. The utility model discloses a holding tank outside all around sets up the slot rolling to at the internally mounted ball of slot rolling, a department and the die holder laminating of ball, when high-pressure spring receives the extrusion, the die holder can move down, produces rolling friction with the ball this moment, and then the ball when providing the holding power for the die holder, also reduces the die holder and accepts the friction between the seat, prolongs the life of this apparatus.

3. The utility model discloses an upper end of cutting die main part sets up the cutting edge, and the cutting edge is sharp-pointed, sharp, the die-cut in-process of being convenient for cuts off the pole piece, and then improves die-cut effect, guarantees that pole piece incision department levels, smooth, reduces the formation of burr.

Drawings

Fig. 1 is a cross-sectional view of a pole piece punching cutting die of the present invention;

fig. 2 is a top view of the cutting die main body of the present invention;

FIG. 3 is a top view of the holder and the seat of the knife holder according to the present invention;

fig. 4 is a partial enlarged view of the region a of the present invention.

In the figure: 1. a bearing seat; 11. accommodating grooves; 12. a fixing plate; 13. a fixing hole; 14. rolling a groove; 2. a knife die holder; 21. mounting grooves; 22. fixing grooves; 3. a cutting die body; 31. a blade; 32. a first forming groove; 33. a second forming groove; 4. a buffer mechanism; 41. a bearing plate; 42. a base plate; 43. a high pressure spring; 5. and a ball.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-4, the present invention provides an embodiment: the utility model provides a die-cut cutting die of pole piece, including accepting seat 1, the inside of accepting seat 1 is provided with holding tank 11, the internally mounted of holding tank 11 has cutting die holder 2, and the upper end of cutting die holder 2 extends to the outside of holding tank 11, buffer gear 4 is installed to the below of cutting die holder 2, the impact force is slowed down, the life of extension cutting die main part 3, buffer gear 4 is including accepting board 41, bottom plate 42 and high-pressure spring 43, bottom plate 42 is installed to the below of accepting board 41, accept and install high-pressure spring 43 between board 41 and the bottom plate 42, high-pressure spring 43 is the essential element of buffering, have good elasticity and the ability of resumeing the deformation.

Further, the inside of cutting die holder 2 is provided with mounting groove 21, and the bottom of mounting groove 21 is provided with fixed slot 22, and cutting die main part 3 is installed to the top of fixed slot 22, cuts corresponding shape, and inside the lower extreme of cutting die main part 3 extended to fixed slot 22 to be connected with fixed slot 22 interference, simple structure, the centering nature is good, and bearing capacity is high, can bear impact load.

Further, the upper end of the cutting die main body 3 is provided with the cutting edge 31, the cutting edge 31 and the cutting die main body 3 are of an integral structure, integrity is good, a joint is seamless, and the cutting die main body 3 is not prone to fracture, a first forming groove 32 is formed in the inner side of the cutting die main body 3, so that a pole piece main body portion is formed conveniently, and second forming grooves 33 are formed in two sides of the first forming groove 32, so that a pole lug portion is formed conveniently.

Further, the outer side around the holding tank 11 is provided with the rolling groove 14, and the rolling groove 14 is provided with a plurality of, and the internally mounted of rolling groove 14 has ball 5, can roll during the atress, and then reduces frictional resistance, makes things convenient for the removal of die holder 2.

Further, the lower extreme of accepting seat 1 both sides is provided with fixed plate 12, and fixed plate 12 and accepting seat 1 structure as an organic whole, the wholeness is good, and the junction is seamless, difficult fracture, and the inside of fixed plate 12 is provided with fixed orifices 13, and fixed orifices 13 is provided with four for passing of bolt one end, and then fix this mould in suitable position, guarantee the fastness of this die holding.

Further, the high-pressure spring 43 is fixedly connected with the bearing plate 41 and the base plate 42, connection is reliable, fixation is firm, the bearing plate 41 is connected with the cutter die holder 2 through bolts, the base plate 42 is connected with the bearing seat 1 through bolts, and the high-pressure knife holder is simple in structure, high in practicability and convenient to operate.

The working principle is as follows: in use, the tool body 3 is inserted into the fixing groove 22 of the tool holder 2, and the entire tool is fixed in place through the fixing hole 13 of the fixing plate 12. Three to four pole pieces are orderly stacked above the cutting die main body 3 and on the inner side of the mounting groove 21, and punching work is carried out. Friction is generated at the contact part of the pole piece and the blade 31 along with the punching of the upper die, and the sharp blade 31 cuts the pole piece, so that the shape of the pole piece is matched with the first forming groove 32 and the second forming groove 33. Meanwhile, in the punching process, the impact force applied by the upper die is transmitted to the cutting die main body 3, the cutting die main body 3 is transmitted to the cutting die base 2, the cutting die base 2 is transmitted to the bearing plate 41, the bearing plate 41 is transmitted to the high-pressure spring 43, the high-pressure spring 43 is compressed by the impact force, a reaction force can be generated by the compression through the good elasticity and the deformation recovery capability of the high-pressure spring 43, and the reaction force is rebounded, so that the impact force is consumed and slowed down in the process, the influence of the impact force on the cutting die main body 3 is further weakened, and the service life of the cutting die main body 3 is prolonged. When the high-pressure spring 43 is extruded, the cutter die holder 2 moves downwards, rolling friction is generated between the cutter die holder 2 and the ball 5, and further, when supporting force is provided for the cutter die holder 2, friction between the cutter die holder 2 and the bearing seat 1 is reduced, and the service life of the tool is prolonged.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a die-cut cutting die of pole piece, includes and accepts seat (1), its characterized in that: the inside of accepting seat (1) is provided with holding tank (11), the internally mounted of holding tank (11) has die holder (2), and the upper end of die holder (2) extends to the outside of holding tank (11), buffer gear (4) are installed to the below of die holder (2), buffer gear (4) are including accepting board (41), bottom plate (42) and high-pressure spring (43), accept the below of board (41) and install bottom plate (42), accept and install high-pressure spring (43) between board (41) and bottom plate (42).

2. The pole piece piercing die of claim 1, wherein: the inside of cutting die seat (2) is provided with mounting groove (21), the bottom of mounting groove (21) is provided with fixed slot (22), cutting die main part (3) is installed to the top of fixed slot (22), and the lower extreme of cutting die main part (3) extends to inside fixed slot (22) to be connected with fixed slot (22) interference.

3. The pole piece piercing die of claim 2, wherein: the upper end of the cutting die main body (3) is provided with a cutting edge (31), the cutting edge (31) and the cutting die main body (3) are of an integrated structure, a first forming groove (32) is formed in the inner side of the cutting die main body (3), and second forming grooves (33) are formed in two sides of the first forming groove (32).

4. The pole piece piercing die of claim 1, wherein: the outer side around holding tank (11) is provided with rolling groove (14), and rolling groove (14) are provided with a plurality of, the internally mounted of rolling groove (14) has ball (5).

5. The pole piece piercing die of claim 1, wherein: the bearing seat is characterized in that fixing plates (12) are arranged at the lower ends of two sides of the bearing seat (1), the fixing plates (12) and the bearing seat (1) are of an integral structure, fixing holes (13) are formed in the fixing plates (12), and the number of the fixing holes (13) is four.

6. The pole piece piercing die of claim 1, wherein: the high-pressure spring (43) is fixedly connected with the bearing plate (41) and the bottom plate (42), the bearing plate (41) is connected with the cutter die holder (2) through bolts, and the bottom plate (42) is connected with the bearing seat (1) through bolts.