CN219006188U

CN219006188U - Single-edge large disc cutter for trimming battery foil

Info

Publication number: CN219006188U
Application number: CN202223591102.4U
Authority: CN
Inventors: 张胜男; 董少林; 饶竹贵; 曾杰江; 杨帅玲
Original assignee: Hangzhou Five Star Aluminium Co ltd
Current assignee: Hangzhou Five Star Aluminium Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-05-12
Anticipated expiration: 2032-12-29

Abstract

The utility model provides a single-edge large disc cutter for trimming battery foil, which comprises a disc cutter body, an assembly hole penetrating through the center of the disc cutter body and a cutting edge formed by the circumferential edge of the disc cutter body, wherein the assembly hole is formed by the outer edge of the disc cutter body; the cutting edge comprises a first cutter surface and a second cutter surface which are formed by obliquely extending two sides of the circumferential edge of the circular cutter body towards the directions of approaching each other, and the first cutter surface and one end of the second cutter surface, which is far away from the circle center of the circular cutter body, are contacted into a whole; the first knife face and the plane where the disc knife body is located are arranged at an included angle of 5 degrees, and the second knife face and the plane where the disc knife body is located are arranged at an included angle of 10 degrees. The single-edge large disc cutter for trimming the battery foil is convenient to assemble, high in accuracy and quality of trimming the battery foil and high in production efficiency.

Description

Single-edge large disc cutter for trimming battery foil

Technical Field

The utility model relates to the technical field of cutters, in particular to a single-edge large disc cutter for trimming battery foil.

Background

Currently, battery foil is one of the important structures in lithium batteries, and the slitting work of the battery foil is to slit the wide battery foil rolled by a rolling mill into finished battery foil with a required width.

In the current battery foil trimming process, the aluminum foil fine trimming cutter which is generally used is a double-edge small disc cutter, when the aluminum foil fine trimming cutter which is used conventionally is used for cutting the double-edge small disc cutter, the cutter blade can press the aluminum foil with the thickness of about 0.4mm into the cutter groove, and in the trimming process, the cutter blade and the aluminum foil edge rub to form the quality defect of the edge white seal. The aluminum foil has high trimming quality requirement, and the double-edge small disc cutter is used for changing and adjusting the cutter frequently due to short service life, so that the production efficiency is affected; the quality defect of the edge cutting is more frequent, and has great influence on the quality of the edge cutting of the product.

Therefore, the existing disc cutter has low trimming precision, more burrs and gaps, poor overall quality and low production efficiency in the process of trimming the battery foil.

Disclosure of Invention

The embodiment of the utility model provides a single-edge large disc cutter for trimming battery foil, which aims to solve the problems of low trimming precision, more burrs and gaps, poor overall quality and low production efficiency of the battery foil.

The embodiment of the utility model provides a single-edge large disc cutter for trimming battery foil, which comprises a disc cutter body, an assembly hole penetrating through the center of the disc cutter body and a cutting edge formed by the circumferential edge of the disc cutter body, wherein the assembly hole is formed by the outer edge of the disc cutter body;

the cutting edge comprises a first cutter surface and a second cutter surface which are formed by obliquely extending two sides of the circumferential edge of the circular cutter body towards the direction of approaching each other, and the first cutter surface and one end of the second cutter surface, which is far away from the circle center of the circular cutter body, are contacted into a whole; the first knife face and the plane where the disc knife body is located are arranged at an included angle of 5 degrees, and the second knife face and the plane where the disc knife body is located are arranged at an included angle of 10 degrees.

Preferably, the assembly hole has a circular structure.

Preferably, the diameter of the assembly hole is 30mm.

Preferably, the area of the first blade surface is larger than the area of the second blade surface.

Preferably, the diameter of the cutter disc body is 80mm.

Preferably, the thickness of the cutter disc body is 0.3mm.

Preferably, the cutter disc body is made of tungsten steel material.

Compared with the prior art, in the embodiment of the utility model, the assembly hole is arranged at the center of the cutter disc body, so that the cutter disc is convenient to assemble; the single-edge large disc cutter for trimming can reduce the occurrence of wavy edges, burrs and gaps, and the trimming quality of the battery foil is good; the cutting edge comprises a first cutter surface and a second cutter surface which are formed by obliquely extending two sides of the circumferential edge of the circular cutter body towards the directions of approaching each other, and the first cutter surface and one end of the second cutter surface, which is far away from the circle center of the circular cutter body, are contacted into a whole; the first cutter surface and the plane where the disc cutter body is located are arranged at an included angle of 5 degrees, and the second cutter surface and the plane where the disc cutter body is located are arranged at an included angle of 10 degrees; the strength of the cutting edge is high, the frequency of tool changing is reduced, and the actual production efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of a single-edge large disc cutter for trimming a battery foil according to an embodiment of the present utility model;

fig. 2 is a cross-sectional view taken along line A-A in fig. 1.

In the figure, 100 parts of a single-edge large disc cutter for trimming battery foil, 1 part of a disc cutter body, 2 parts of an assembly hole, 3 parts of a cutting edge, 31 parts of a first cutter surface, 32 parts of a second cutter surface.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. Based on the embodiments of the present utility model, other embodiments of each pedestrian that a person of ordinary skill in the art would obtain without making any inventive effort are within the scope of the present utility model.

The terms "comprising" and "having" and any variations thereof in the description and claims of the present application and in the description of the drawings are intended to cover a non-exclusive inclusion. The terms first, second and the like in the description and in the claims or drawings are used for distinguishing between different objects and not for describing a particular sequential order. Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

As shown in fig. 1-2, an embodiment of the present utility model provides a single-edge large disc cutter 100 for trimming a battery foil, the single-edge large disc cutter 100 for trimming a battery foil including a disc cutter body 1, an assembly hole 2 penetrating the center of the disc cutter body 1, and a blade 3 formed by the circumferential edge of the disc cutter body 1. Through fixed with mounting hole 2 and complex driving motor, through driving motor drive disc cutter body 1 rotatory to make cutting edge 3 carry out the effect that realizes battery foil and cut edge along with disc cutter body 1. The cutting edge 3 is arranged on the whole circumference of the cutter disc body 1, the diameter of the cutter disc body 1 is large, and when the cutter disc is used for cutting edges, the battery foil which can be cut by rotating the cutting edge 3 for a circle is longer. The single-edge large disc cutter has the characteristics of wider cutting edge and single-sided cutting edge, so that the contact area between the edge of the battery foil and the blade during edge cutting can be reduced, and further, the generation of white marks on the edge of the battery foil can be avoided.

The cutting edge 3 comprises a first cutter surface 31 and a second cutter surface 32 which are formed by two sides of the circumferential edge of the circular cutter body 1 and extend obliquely towards the direction of approaching each other, and the first cutter surface 31 and one end of the second cutter surface 32 far away from the circle center of the circular cutter body 1 are contacted into a whole; the first knife surface 31 and the plane where the disc knife body 1 is located are arranged at an included angle of 5 degrees, and the second knife surface 32 and the plane where the disc knife body 1 is located are arranged at an included angle of 10 degrees. The strength of the blade 3 is high, the frequency of changing the cutter is reduced, and the actual production efficiency is improved.

Wherein, through with the first knife face 31 with the plane that disc cutter body 1 is located is 5 contained angles setting, the second knife face 32 with the plane that disc cutter body 1 is located is 10 contained angles setting. The structural strength and cutting accuracy of the blade 3 can be enhanced.

The first knife face 31 is a knife edge face, the second knife face 32 is a knife edge face, friction between the battery foil and the knife edge contact surface can be reduced, and generation of wave edges of the battery foil is reduced; the angle of the knife edge surface is smaller, so that the width of the knife back mark can be reduced. Meanwhile, the cutting depth of the blade is reset by reselecting a cutter for fine trimming, the first cutter face 31 is arranged on one side of the battery foil, which is required to be trimmed, and the second cutter face 32 is arranged on one side of the slitter edge, so that the unique cutting edge 3 characteristic of the single-edge disc cutter is utilized, and the trimming qualification rate of the battery foil is improved.

In this embodiment, the assembly hole 2 has a circular structure. The assembly is convenient.

In this embodiment, the diameter of the fitting hole 2 is 30mm.

In this embodiment, the area of the first rake surface 31 is larger than the area of the second rake surface 32. The first knife face 31 is made into a single knife edge face, and the first knife face 31 is cut on the side of the battery foil, which needs to be cut, so that the cut qualification rate of the battery foil can be improved.

In this embodiment, the diameter of the cutter disc body 1 is 80mm.

In this embodiment, the thickness of the cutter disc body 1 is 0.3mm.

In this embodiment, the cutter disc body 1 is made of tungsten steel material. The tungsten steel material has high structural strength and the disc cutter has long service life.

The foregoing disclosure is illustrative of the present utility model and is not to be construed as limiting the scope of the utility model, which is defined by the appended claims.

Claims

1. The single-edge large disc cutter for trimming the battery foil is characterized by comprising a disc cutter body, an assembly hole penetrating through the center of the disc cutter body and a cutting edge formed by the circumferential edge of the disc cutter body;

2. The single-edged large disc cutter for trimming a battery foil according to claim 1, wherein the fitting hole has a circular structure.

3. The single-edged large disc cutter for trimming a battery foil according to claim 2, wherein the diameter of the fitting hole is 30mm.

4. The single-edged large disc cutter for trimming a battery foil according to claim 1, wherein the area of the first blade surface is larger than the area of the second blade surface.

5. The single-edge large disc cutter for trimming a battery foil according to claim 1, wherein the diameter of the disc cutter body is 80mm.

6. The single-edge large disc cutter for trimming a battery foil according to claim 1, wherein the thickness of the disc cutter body is 0.3mm.

7. The single-edge large disc cutter for trimming battery foil according to claim 1, wherein the disc cutter body is made of tungsten steel material.