CN220547596U

CN220547596U - Combined type battery diaphragm cutter

Info

Publication number: CN220547596U
Application number: CN202322165119.1U
Authority: CN
Inventors: 陈杰
Original assignee: Dongguan Yangzhen Precision Hardware Co ltd
Current assignee: Dongguan Yangzhen Precision Hardware Co ltd
Priority date: 2023-08-12
Filing date: 2023-08-12
Publication date: 2024-03-01
Anticipated expiration: 2033-08-12

Abstract

A composite battery separator cutter comprising: the shank that forms by iron, the cutting edge that forms by tungsten steel and a plurality of rivet, the shank has the main part, and the main part has a plurality of first through-hole, and the cutting edge has cutter body and a plurality of sword tooth, and a plurality of sword tooth are the cockscomb structure and arrange on the cutter body, and the cutter body has a plurality of second through-hole, rivet and first through-hole and second through-hole riveting simultaneously. The knife handle and the knife edge of the composite battery diaphragm knife are riveted and fixed through rivets, and compared with welding, the knife edge can be prevented from being bent in an arc shape through riveting, so that the parallelism of a cut is guaranteed, the possibility of burrs is reduced, and the product quality is guaranteed.

Description

Combined type battery diaphragm cutter

Technical Field

The utility model relates to a battery diaphragm cutter, in particular to a composite battery diaphragm cutter.

Background

In the manufacture of lithium-ion batteries, a separator needs to be placed between two pole pieces, and accordingly, a conveying device for conveying the separator and a cutting device for cutting the separator are arranged on a production line. At present, some cutting devices use a composite type cutter, such as a diaphragm disclosed in chinese utility model CN207630087U, wherein a blade portion of the cutter is formed by a metal material with higher hardness, and a handle portion of the cutter is formed by a metal material with relatively lower hardness, so that the service life of the cutter is prolonged, and the overall material cost is controlled.

However, the existing composite battery diaphragm cutter often adopts a welding process to connect two materials together, and as the thermal deformation rates of the two materials are inconsistent, namely the deformation speed of a metal material with lower hardness may be higher, the situation that the cutter handle part is kept straight after welding is finished, but the cutter edge part is curved in an arc shape may occur, and the parallelism of a battery diaphragm notch cut by the cutter is insufficient, and burrs may be formed at the notch, so that the product quality is affected.

Disclosure of Invention

The technical scheme of the utility model is to solve the above problems by providing a composite battery diaphragm cutter, which comprises: the utility model provides a handle of a knife, cutting edge and a plurality of rivet that form by iron, by tungsten steel, the handle of a knife has main part and support arm, the main part is connected with the support arm, the main part has a plurality of first through-hole, the cutting edge has cutter body and a plurality of sword tooth, and a plurality of sword tooth are the cockscomb structure and arrange on the cutter body, the cutter body has a plurality of second through-hole, the rivet rivets with first through-hole and second through-hole simultaneously.

Further, the rivet, the first through holes and the second through holes are four, the four first through holes are arranged in a row, and the four first through holes are aligned with the four second through holes respectively.

Further, the main body is also provided with a bearing step, the bearing step supports the cutter body, and the front surface of the cutter body is attached to the cutter handle.

Further, the main body is also provided with a positioning groove which is arranged in a downward concave manner from the bearing step, and the cutter body is provided with a positioning pin which is inserted into the positioning groove.

Further, the tip of the blade tooth is arranged upwards, and the blade tooth is positioned above the cutter handle.

Further, the body also has a support arm, and the body is connected with the support arm.

Further, the number of the supporting arms is two, and the two supporting arms are respectively positioned at the left side and the right side of the main body.

Further, the support arm is provided with a strip-shaped notch, and the opening of the strip-shaped notch is downwards arranged.

After the technical scheme is adopted, the utility model has the beneficial effects that: the knife handle and the knife edge of the composite battery diaphragm knife are riveted and fixed through rivets, and compared with welding, the knife edge can be prevented from being bent in an arc shape through riveting, so that the parallelism of a cut is guaranteed, the possibility of burrs is reduced, and the product quality is guaranteed.

Drawings

Fig. 1 is a front view of a battery separator cutter according to the present utility model;

FIG. 2 is a side view of a battery separator cutter according to the present utility model;

fig. 3 is a partial enlarged view of the battery separator cutter according to the present utility model at circle a.

Detailed Description

The technical scheme of the utility model is further described by the following examples:

the utility model provides a composite battery diaphragm cutter, which is shown in combination with figures 1-3, and comprises: the tool shank 1 is made of iron, the tool edge 2 is made of tungsten steel and the rivets 3, the tool shank 1 is provided with a main body 11, the main body 11 is provided with a plurality of first through holes 12, the tool edge 2 is provided with a tool body 21 and a plurality of tool teeth 22, the plurality of tool teeth 22 are arranged in a saw-tooth shape on the tool body 21, the tool body 21 is provided with a plurality of second through holes 23, and the rivets 3 are riveted with the first through holes 12 and the second through holes 23.

When the battery diaphragm cutter is used, the cutter handle 1 can be fixed on a cutting device, the cutting device drives the battery diaphragm cutter to move towards the battery diaphragm, and the plurality of blade teeth 22 of the blade 2 are used for cutting the battery diaphragm. The rivet 3 is used for riveting and fixing the knife handle 1 and the knife edge 2, so that a large amount of heat is not generated during riveting relative to welding, arc bending of the knife edge 2 can be avoided, parallelism of a cut is guaranteed, possibility of burrs is reduced, and product quality is guaranteed.

Specifically, as shown in fig. 1, the rivet 3, the first through holes 12 and the second through holes 23 are four, the four first through holes 12 are arranged in a row, and the four first through holes 12 are aligned with the four second through holes 23 respectively. Four rivets 3 are arranged for riveting, four-point positioning can be formed between the cutter handle 1 and the cutter edge 2, and the fixation firmness is enhanced.

Specifically, as shown in fig. 3, the main body 11 further has a receiving step 13, the receiving step 13 supports the cutter body 21, and a front surface of the cutter body 21 is attached to the cutter handle 1. Wherein, before riveting, the cutter body 21 of the blade 2 can be placed on the receiving step 13, and the front surface of the cutter body 21 is positioned to facilitate the subsequent riveting operation.

More specifically, the main body 11 further has a positioning groove 14, the positioning groove 14 is recessed downward from the receiving step 13, the cutter body 21 has a positioning pin 24, and the positioning pin 24 is inserted into the positioning groove 14. After the cutter body 21 is placed on the receiving step 13, the positioning pin 24 is matched with the positioning groove 14, so that a more accurate positioning effect can be achieved, and the riveting operation is more convenient.

More specifically, the tip of the blade tooth 22 is disposed upward, and the blade tooth 22 is located above the shank 1. In this embodiment, the battery separator cutter cuts in the up-down direction.

Specifically, as shown in fig. 1, the tool shank 1 further has a support arm 15, and the main body 11 is connected to the support arm 15. Wherein, when the battery separator cutter is used, the supporting arm 15 can be fixed on the cutting device.

More specifically, the number of the support arms 15 is two, and the two support arms 15 are respectively located on the left and right sides of the main body 11. In this embodiment, the battery separator cutter is fixed to the cutting device by means of two-point positioning.

More specifically, the support arm 15 has a bar-shaped notch 16, and the opening of the bar-shaped notch 16 is disposed downward. When the battery diaphragm cutter is fixed, the battery diaphragm cutter can be fixed through the strip-shaped notch 16 in a screw locking mode, and the position of the battery diaphragm cutter can be adjusted by changing the relative position of the strip-shaped notch 16 and the screw.

Claims

1. A combined type battery diaphragm cutter, its characterized in that: the battery separator cutter includes: the tool comprises a tool handle formed by iron, a cutting edge formed by tungsten steel and a plurality of rivets, wherein the tool handle is provided with a main body, the main body is provided with a plurality of first through holes, the cutting edge is provided with a tool body and a plurality of blade teeth, the blade teeth are arranged in a saw-tooth shape on the tool body, the tool body is provided with a plurality of second through holes, and the rivets are riveted with the first through holes and the second through holes at the same time.

2. The composite battery separator cutter of claim 1, wherein: the rivet, the first through holes and the second through holes are all four, the four first through holes are arranged in a row, and the four first through holes are aligned with the four second through holes respectively.

3. The composite battery separator cutter of claim 1, wherein: the main body is also provided with a bearing step, the bearing step supports the cutter body, and the front surface of the cutter body is attached to the cutter handle.

4. A composite battery separator cutter as defined in claim 3, wherein: the main body is also provided with a positioning groove which is arranged from the bearing step to the lower recess, the cutter body is provided with a positioning pin, and the positioning pin is inserted into the positioning groove.

5. A composite battery separator cutter as defined in claim 3, wherein: the tip of the blade tooth is upward, and the blade tooth is positioned above the knife handle.

6. The composite battery separator cutter of claim 1, wherein: the body also has a support arm, and the body is connected with the support arm.

7. The composite battery separator cutter according to claim 6, wherein: the two support arms are respectively positioned at the left side and the right side of the main body.

8. The composite battery separator cutter according to claim 6, wherein: the support arm is provided with a strip-shaped notch, and the opening of the strip-shaped notch is downwards arranged.