CN203124823U

CN203124823U - Battery pole piece slitting knife

Info

Publication number: CN203124823U
Application number: CN 201320000822
Authority: CN
Inventors: 林兆伟; 曾吉林; 王维东
Original assignee: Shenzhen Yinghe Technology Co Ltd
Current assignee: Shenzhen Yinghe Technology Co Ltd
Priority date: 2013-01-04
Filing date: 2013-01-04
Publication date: 2013-08-14
Anticipated expiration: 2023-01-04

Abstract

The utility model belongs to the field of battery manufacturing equipment and relates to a battery pole piece slitting knife which comprises an upper cutting knife, a lower cutting knife, an upper knife shaft, a lower knife shaft, partitioning sleeves and blocking sleeves. The upper knife shaft and the lower knife shaft drive the upper cutting knife and the lower cutting knife to rotate. The partitioning sleeves and the blocking sleeves enable the cutting knives to be distributed on the knife shafts at intervals. The battery pole piece slitting knife is characterized in that the upper cutting knife is a sharp knife, the lower cutting knife is a flat knife, the outer diameters of the partitioning sleeve and the blocking sleeve which fix the lower cutting knife are the same as the outer diameter of the lower cutting knife, so that when pole pieces are slitted, the pole pieces are supported on the lower partitioning sleeve and the lower blocking sleeve, the fact that the pole pieces are cut off quickly and smoothly is guaranteed, wavy edges are removed, burrs are small, and the pole pieces cannot be damaged.

Description

A kind of battery pole piece cutting tool

Technical field

The utility model relates to the battery making apparatus, especially a kind of cutting tool for battery pole piece.

Background technology

In the manufacturing process of battery pole piece, will carry out pole piece after coating is finished cuts, and as the battery pole piece of lithium battery important raw and processed materials, its quality quality is the key point that guarantees the lithium battery quality, and the quality quality of battery pole piece is subjected to the influence that pole piece is cut quality largely, itemize knife structure commonly used in producing now: upper and lower blade rolling cut structure, upper knife edge is close to edge down, and pole piece is through slitting slivering behind the upper and lower cutter overlapping.The defective of existing itemize blade is: because the cutting edge of upper and lower blade is fragile, in the process of shearing, blade is easy to produce breach, so blade is short service life, and only rely on the shearing force of two cuttves to cut pole piece when cutting, pole piece burr behind the itemize is big, the pole piece quality after can not guaranteeing to cut.

Summary of the invention

The utility model has proposed a kind of can prevent from producing when pole piece from cutting rippled edge, the cutting tool that cutter life is long at the defective of existing cutting tool.

For achieving the above object, the technical scheme that adopts of the utility model is as follows:

A kind of battery pole piece cutting tool, comprise movably knife rest, comprise cutter shaft, following cutter shaft, upper cutter, lower cutter on the knife rest, go up spacer, go up interstage sleeve, following spacer, following interstage sleeve, it is characterized in that described spacer down is consistent with the external diameter of described lower cutter with the external diameter of described interstage sleeve down.

Preferably, described upper cutter is sharp knife, and described lower cutter is flat cutter, and the blade of described upper cutter is relative with the blade of described lower cutter.

Described upper cutter is set in described going up on the cutter shaft by spacer and interstage sleeve fixed interval, and described lower cutter is set on the described cutter shaft down by spacer and interstage sleeve fixed interval.

Described interstage sleeve preferably adopts sponge.

Described knife rest comprises base, first gripper shoe and second gripper shoe, and described first gripper shoe and described second gripper shoe are fixed on the two ends of base, are connected to overall structure with described base, support upper and lower cutter shaft.

The beneficial effects of the utility model are: the rolling cut knife-edge formula of sharp knife, following flat cutter in the employing, obviously improved the cutting knife life-span; Lower cutter adopts the form of flat cutter, and its interstage sleeve adopts the sponge identical with its external diameter, and when the rolling cut pole piece, spacer and interstage sleeve support pole piece, guarantee quick, level and smooth being cut off of pole piece, have eliminated rippled edge, and burr is little, more can not damage pole piece; Adopt the monoblock type knife rest, process conveniently, precision is higher.

Description of drawings

The front view of a kind of preferred embodiment of Fig. 1 the utility model

The rolling cut pole piece schematic diagram of a kind of preferred embodiment of Fig. 2 the utility model

Concrete enforcement

Below will consult accompanying drawing is described further the specific embodiment of the present utility model:

Consult Fig. 1 and Fig. 2, a kind of battery pole piece cutting tool, comprise movably knife rest, comprise on the knife rest cutter shaft 1, down cutter shaft 2, upper cutter 3, lower cutter 4, go up spacer 5, go up interstage sleeve 6, spacer 7, interstage sleeve 8 down down, it is characterized in that the external diameter of following spacer 7 and following interstage sleeve 8 is consistent with the external diameter of lower cutter 4.

Upper cutter 3 is sharp knife, and lower cutter 4 is flat cutter, and the blade of upper cutter 3 is relative with the blade of lower cutter 4, and upper cutter and lower cutter cooperate the rolling cut pole piece.

Upper cutter is set on the cutter shaft by last spacer and last interstage sleeve fixed interval, last cutter shaft driven-mechanism drives rotation, lower cutter is set in down on the cutter shaft by following spacer and following interstage sleeve fixed interval, and following cutter shaft driven-mechanism drives rotation, and the direction of rotation of last cutter shaft and following cutter shaft is opposite.

Last interstage sleeve and following interstage sleeve preferably adopt sponge, can also adopt other to have elasticity, conveniently regulate cutter location, and contact the material that can not damage cutting knife with the cutting knife blade.

Knife rest comprises base 91, first gripper shoe 92 and second gripper shoe 93, first gripper shoe 92 and second gripper shoe 93 are fixed on the two ends of base 91, are connected to overall structure with described base, support upper and lower cutter shaft, base 91 is provided with roller, and it is whole mobile to drive knife rest.

The cutting tool of prior art adopts flat cutter, following flat cutter substantially or goes up the form of sharp knife, following sharp knife, upper and lower all is that flat cutter all is difficult to control on cutter adjustment and machining accuracy, be difficult for guaranteeing precision, upper and lower all is that the cutting edge roundness of sharp knife is fragile, be easy to produce breach, service life is short, and prior art does not have support in shear history, rippled edge appears shearing in fragile pole piece.A kind of pole piece cutting tool of the present utility model adopts when going up sharp knife, flat cutter, and shearing down and is supporting pole piece by spacer and interstage sleeve, has overcome the deficiencies in the prior art.

By reference to the accompanying drawings embodiment of the present utility model has been done detailed description above, but the utility model is not limited to above-mentioned embodiment, in the ken that those of ordinary skills possess, can also under the prerequisite that does not break away from the utility model aim, make various variations.

Claims

1. A kind of battery pole piece cutting tool, comprise movably knife rest, comprise cutter shaft, following cutter shaft, upper cutter, lower cutter on the knife rest, go up spacer, go up interstage sleeve, following spacer, following interstage sleeve, it is characterized in that described spacer down is consistent with the external diameter of described lower cutter with the external diameter of described interstage sleeve down.

2. battery pole piece cutting tool as claimed in claim 1 is characterized in that, described upper cutter is sharp knife, and described lower cutter is flat cutter, and the blade of described upper cutter is relative with the blade of described lower cutter.

3. battery pole piece cutting tool as claimed in claim 1, it is characterized in that, described upper cutter is set in described going up on the cutter shaft by last spacer and last interstage sleeve fixed interval, and described lower cutter is by spacer and following interstage sleeve fixed interval are set on the described cutter shaft down down.

4. battery pole piece cutting tool as claimed in claim 3 is characterized in that, described upward interstage sleeve and described interstage sleeve down are sponge.

5. as each described battery pole piece cutting tool of claim 1 to 4, it is characterized in that, described knife rest comprises base, first gripper shoe and second gripper shoe, described first gripper shoe and described second gripper shoe are fixed on the two ends of base, be connected to overall structure with described base, support upper and lower cutter shaft.