CN218310336U

CN218310336U - Punching die for lithium battery pole piece

Info

Publication number: CN218310336U
Application number: CN202222440760.7U
Authority: CN
Inventors: 符海民; 陈冰; 余桂彬
Original assignee: Dongguan Zhihong Precision Mould Co ltd
Current assignee: Dongguan Zhihong Precision Mould Co ltd
Priority date: 2022-09-15
Filing date: 2022-09-15
Publication date: 2023-01-17
Anticipated expiration: 2032-09-15

Abstract

The utility model relates to the technical field of lithium battery pole pieces, in particular to a punching die for lithium battery pole pieces, which comprises a die bottom plate, a pole piece body and a die top plate, wherein the die top plate is used for punching the lithium battery pole pieces; first blade holder and second blade holder down, it passes through the bolt fastening at mould bottom plate top outer wall, the second connecting plate is all installed to mould roof bottom outer wall both sides, the utility model discloses a be provided with first chamfer stripping and second chamfer stripping, come to carry out die-cut chamfer to lithium-ion battery pole piece through first chamfer stripping, second chamfer stripping is used for separating the shape of lithium-ion battery pole piece and shaping lug, and when the pneumatic cylinder drove the mould roof and ascended, guide arm and supporting spring drove corresponding first elasticity kickboard and second elasticity kickboard and rises, make things convenient for next cutting off of lithium-ion battery pole piece.

Description

Punching die for lithium battery pole piece

Technical Field

The utility model relates to a lithium-ion battery pole piece technical field specifically is a die-cut mould for lithium-ion battery pole piece.

Background

A lithium battery is a type of battery using a non-aqueous electrolyte solution, with lithium metal or a lithium alloy as a positive/negative electrode material. Because the chemical characteristics of lithium metal are very active, the lithium metal has very high requirements on the environment in processing, storage and use. With the development of science and technology, lithium batteries have become the mainstream.

The existing punching die can only punch one pole piece at a time, so that the punching efficiency of the pole piece is reduced, and the use has limitation.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a die-cut mould for lithium-ion battery pole piece to solve the problem that proposes in the above-mentioned background art.

The technical scheme of the utility model is that: a punching die for a lithium battery pole piece comprises a die bottom plate, a pole piece body and a die bottom plate, wherein the die bottom plate is provided with a die bottom hole;

the die top plate is used for punching the lithium battery pole piece, guide pillars are arranged at four corners of the outer wall of the top of the die bottom plate, and the die top plate is connected with the outer walls of the guide pillars in a sliding manner;

the first lower cutter holder and the second lower cutter holder are fixed on the outer wall of the top of the die bottom plate through bolts, the second connecting plates are installed on two sides of the outer wall of the bottom of the die top plate, and two first chamfer cutting blocks are installed on the outer wall of the bottom of the second connecting plate.

Preferably, the outer wall of the bottom of the top plate of the mold is provided with a first connecting plate, and the outer wall of the bottom of the first connecting plate is provided with a second chamfer cutting block.

Preferably, the outer wall of the circumference of the guide pillar is sleeved with a compression spring.

Preferably, the outer wall of the top of the die bottom plate is provided with a middle lower tool apron.

Preferably, one side is two first chamfer cutout outer wall sliding connection has same second elasticity kickboard, and second chamfer cutout outer wall sliding connection has first elasticity kickboard, and first elasticity kickboard and second elasticity kickboard can extrude fixedly to lithium-ion battery pole piece, have guaranteed the stability of punching press next.

Preferably, the guide rods are arranged on the outer walls of the tops of the first elastic floating plate and the second elastic floating plate and are connected with the bottom of the second connecting plate in a sliding mode.

Preferably, the outer wall of the circumference of the guide rod is sleeved with a supporting spring, two ends of the supporting spring are fixedly connected with the outer walls, opposite to the first elastic floating plate, the first connecting plate, the second elastic floating plate and the second connecting plate, of the guide rod, the guide rod and the supporting spring drive the corresponding first elastic floating plate and the second elastic floating plate to ascend, and therefore the next lithium battery pole piece can be conveniently cut off.

The utility model discloses an improve and provide a die-cut mould for lithium-ion battery pole piece here, compare with prior art, have following improvement and advantage:

the utility model discloses a be provided with first chamfer stripping and second chamfer stripping, come to carry out die-cut chamfer to lithium-ion battery pole piece through first chamfer stripping, second chamfer stripping is used for separating the shape of lithium-ion battery pole piece and shaping lug, when the pneumatic cylinder drives the mould roof and rises, guide arm and supporting spring drive corresponding first elasticity kickboard and second elasticity kickboard and rise, make things convenient for cutting off of next lithium-ion battery pole piece, and once can cut into two with battery pole piece, die-cut efficiency has been improved.

Drawings

The invention is further explained below with reference to the figures and examples:

fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic bottom view of the present invention;

fig. 3 is a schematic view of the structure of the die bottom plate of the present invention.

Description of the reference numerals:

1. a mold top plate; 2. a guide post; 3. a mold base plate; 4. a first lower tool apron; 5. a middle lower tool apron; 6. a pole piece body; 7. a second lower tool apron; 8. a first elastic floating plate; 9. a second elastic floating plate; 10. a compression spring; 11. a guide bar; 12. a first connecting plate; 13. a second connecting plate; 14. cutting the first chamfer into blocks; 15. and cutting the second chamfer into blocks.

Detailed Description

The present invention will be described in detail below, and it is apparent that the technical solutions in the embodiments of the present invention are described clearly and completely. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

The utility model discloses an improve and provide a die-cut mould for lithium-ion battery pole piece here, the technical scheme of the utility model is:

as shown in fig. 1-3, a punching die for a lithium battery pole piece comprises a die base plate 3 and a pole piece body 6, and further comprises;

the die top plate 1 is used for punching the lithium battery pole piece, four corners of the outer wall of the top of the die bottom plate 3 are provided with guide pillars 2, and the die top plate 1 is connected with the outer walls of the guide pillars 2 in a sliding manner;

first lower blade holder 4 and second lower blade holder 7, it passes through the bolt fastening at 3 top outer walls of mould bottom plate, and second connecting plate 13 is all installed to 1 bottom outer wall both sides of mould roof, and second connecting plate 13 bottom outer wall installs two first chamfer cutouts 14, comes to carry out die-cut chamfer to lithium-ion battery sheet through first chamfer cutout 14.

Further, first connecting plate 12 is installed to 1 bottom outer wall of mould roof, and first connecting plate 12 bottom outer wall installs second chamfer stripping cut 15, and second chamfer stripping cut 15 is used for separating lithium-ion battery sheet and the shape of shaping lug.

Furthermore, the outer wall of the circumference of the guide post 2 is sleeved with a compression spring 10.

Further, 3 top outer walls of mould bottom plate install middle lower blade holder 5, and first lower blade holder 4, middle lower blade holder 5 and second lower blade holder 7 can support fixedly lithium-ion battery sheet.

Further, 14 outer walls of two first chamfer cutouts of one side sliding connection have same

second elasticity kickboard

9, and 15 outer walls of second chamfer cutouts sliding connection have first elasticity kickboard 8, and first elasticity kickboard 8 and second elasticity kickboard 9 can extrude fixedly lithium-ion battery pole piece, have guaranteed the stability of punching press next.

Furthermore, guide rods 11 are installed on the outer walls of the tops of the first elastic floating plate 8 and the second elastic floating plate 9, and the guide rods 11 are connected with the bottom of the second connecting plate 13 in a sliding mode.

Further, 11 circumference outer walls of guide arm have cup jointed supporting spring, and the supporting spring both ends and the relative outer wall fixed connection of first elasticity kickboard 8, first connecting plate 12, second elasticity kickboard 9 and second connecting plate 13, and guide arm 11 and supporting spring drive corresponding first elasticity kickboard 8 and second elasticity kickboard 9 and rise, make things convenient for next cutting off of lithium-ion battery pole piece.

The working principle is as follows: at first install mould roof 1 and mould bottom plate 3 on the punching machine, the lithium-ion battery pole piece that will treat the processing is put on first lower blade holder 4 and second lower blade holder 7, drive mould roof 1 through the punching machine pneumatic cylinder and descend, come to carry out die-cut chamfer to lithium-ion battery pole piece through first chamfer stripping cuts 14, second chamfer stripping cuts 15 is used for separating lithium-ion battery pole piece and the shape of shaping lug, when the pneumatic cylinder drives mould roof 1 and rises, guide arm 11 and supporting spring drive corresponding first elasticity kickboard 8 and second elasticity kickboard 9 and rise, make things convenient for next cutting off of lithium-ion battery pole piece.

Claims

1. A punching die for a lithium battery pole piece comprises a die bottom plate (3) and a pole piece body (6), and is characterized by also comprising a die bottom plate and a pole piece body;

the die top plate (1) is used for punching the lithium battery pole piece, guide pillars (2) are arranged at four corners of the outer wall of the top of the die bottom plate (3), and the die top plate (1) is connected with the outer walls of the guide pillars (2) in a sliding manner;

first blade holder (4) and second blade holder (7) down, it passes through the bolt fastening at mould bottom plate (3) top outer wall, second connecting plate (13) are all installed to mould roof (1) bottom outer wall both sides, and two first chamfer stripping and slicing (14) are installed to second connecting plate (13) bottom outer wall.

2. The die-cutting die for the lithium battery pole piece, according to claim 1, is characterized in that: first connecting plate (12) are installed to mould roof (1) bottom outer wall, and first connecting plate (12) bottom outer wall installs second chamfer stripping and slicing (15).

3. The die-cutting die for the lithium battery pole piece as claimed in claim 1, wherein: and a compression spring (10) is sleeved on the outer wall of the circumference of the guide post (2).

4. The die-cutting die for the lithium battery pole piece, according to claim 1, is characterized in that: and a middle lower cutter holder (5) is arranged on the outer wall of the top of the die bottom plate (3).

5. The die-cutting die for the lithium battery pole piece as claimed in claim 2, wherein: one side two first chamfer cutout (14) outer wall sliding connection has same second elasticity kickboard (9), and second chamfer cutout (15) outer wall sliding connection has first elasticity kickboard (8).

6. The die-cutting die for the lithium battery pole piece, according to claim 5, is characterized in that: guide rods (11) are installed on the outer walls of the tops of the first elastic floating plate (8) and the second elastic floating plate (9), and the guide rods (11) are connected with the bottom of the second connecting plate (13) in a sliding mode.

7. The die-cutting die for the lithium battery pole piece, according to claim 6, is characterized in that: and the outer wall of the circumference of the guide rod (11) is sleeved with a supporting spring, and the two ends of the supporting spring are fixedly connected with the outer walls of the first elastic floating plate (8), the first connecting plate (12), the second elastic floating plate (9) and the second connecting plate (13) which are opposite.