CN214022985U - Button lithium ion battery hem forming device - Google Patents
Button lithium ion battery hem forming device Download PDFInfo
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- CN214022985U CN214022985U CN202023064883.2U CN202023064883U CN214022985U CN 214022985 U CN214022985 U CN 214022985U CN 202023064883 U CN202023064883 U CN 202023064883U CN 214022985 U CN214022985 U CN 214022985U
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- battery
- die
- lithium ion
- flanging
- forming device
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Abstract
The utility model discloses a button lithium ion battery hem forming device, including ring sword, knurling mould and hem mould, the ring sword is used for die-cut battery appearance, and the ring sword avoids the utmost point ear of battery, the knurling mould comprises knurling die and knurling terrace die, and knurling die and knurling terrace die pressfitting make the battery form triangle toper line from top to bottom; and the edge folding die is used for bending and wrapping the outer edge of the battery with the triangular conical grains in the circumferential direction of the battery. The utility model discloses a knurling mould and hem mould have improved the hem mould, and fine solution the hem molding unbalanced, influence outward appearance and size to and cause potential encapsulation weeping quality problems.
Description
Technical Field
The utility model belongs to the technical field of the battery, concretely relates to button lithium ion battery hem forming device.
Background
The lithium ion battery is a rechargeable battery which works by means of the back-and-forth migration of lithium ions between a positive electrode and a negative electrode, and compared with the traditional square and cylindrical batteries, the button battery belongs to a special-shaped battery. Button cells are small and are generally used in various small electronic products, such as electronic watches, electronic hearing aids, earphones, and the like. Wherein soft packet of button lithium ion battery, shell adopt the plastic-aluminum complex film, through punch-die stretch forming, then encapsulate through the hot melt pressurization and seal, then form the outward appearance through 360 hem shaping of tool and be circular shape button cell, are applied to in a large number in TWS earphone and the specific little space product.
When the existing soft package button lithium ion battery is packaged and folded, the sharp corner position wrinkles at the overlapped part of the aluminum plastic film for sealing the battery are irregular and uneven in distribution, so that the size of the battery and the sealing quality of the battery are greatly influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a button lithium ion battery hem forming device, through the combination of knurling mould and hem mould, fine solution the hem molding unbalanced, influence outward appearance and size to and cause potential encapsulation weeping quality problems.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a button lithium ion battery flanging forming device comprises a circular ring cutter, an embossing mold and a flanging mold, wherein the circular ring cutter is used for punching the shape of a battery, the circular ring cutter avoids the lug of the battery, the embossing mold is composed of an embossing female mold and an embossing male mold, and the embossing female mold and the embossing male mold are pressed up and down to enable the battery to form triangular conical patterns; the edge folding die is used for bending and wrapping the outer edge of the battery with the triangular conical grains in the circumferential direction of the battery.
The flanging die comprises a flanging convex rod and a flanging concave die which are matched.
The edge-folding convex rod and the edge-folding concave die are made of one of PEEK, Teflon and ceramic alumina.
The transverse clearance groove and the longitudinal clearance groove are formed in the outer side of the punching hole of the flanging female die, so that the circular button cell can be positioned and placed in two directions, the service life of the female die is prolonged by 1 time, and the use cost is greatly reduced to 1/2.
The punching and folding hole of the folding female die consists of a conical transition hole at the upper part and a cylindrical straight-through hole at the lower part, and the conical transition hole is a conical transition surface, so that the battery is regularly formed without clamping a shell during folding, and is stably transitionally formed from the conical transition surface to the cylindrical straight-through hole.
The surface roughness of the conical transition hole and the cylindrical through hole is Ra0.1-1.0.
The utility model has the advantages that the edge folding die is improved through the embossing die and the edge folding die, and the problems of unbalanced edge folding shape, influence on appearance and size and potential packaging leakage quality are solved.
Drawings
Fig. 1 is a top view of a circular button cell of the present invention;
fig. 2 is a perspective view of a circular button cell of the present invention;
FIG. 3 is a schematic view of the structure of the folding clamp of the present invention;
FIG. 4 is a schematic view of the structure of the flanging female die of the present invention;
fig. 5 is a schematic view of the bottom of the flanging female die of the present invention.
In the figure: 1-flanging convex rod, 2-flanging concave die, 21-transverse clearance groove, 22-longitudinal clearance groove, 23-conical transition hole, 24-cylindrical through hole, 3-circular button battery, 31-tab and 32-triangular conical pattern.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
Referring to fig. 1-5, a button lithium ion battery hem forming device comprises a circular ring cutter, an embossing mold and a hem mold, wherein the circular ring cutter is used for punching the shape of a circular ring-shaped button battery 3, the circular ring cutter avoids a tab 31 of the circular ring-shaped button battery 3, the embossing mold is composed of an embossing female mold and an embossing male mold, and the embossing female mold and the embossing male mold are pressed up and down to enable the battery to form triangular conical grains 32 (as shown in fig. 1 and 2); the triangular conical grains 32 are symmetrically distributed on two sides of the tab 31. The flanging die comprises a flanging convex rod 1 and a flanging female die 2, wherein the flanging convex rod 1 and the flanging female die 2 are processed and formed by adopting wear-resistant materials, and in order to prolong the wear-resistant service life, PEEK, Teflon and ceramic alumina materials are preferably selected; the service life of the ceramic alumina material is prolonged by more than 2 times compared with that of the PEEK material. The transverse clearance groove 21 and the longitudinal clearance groove 22 are arranged on the outer side of the punching hole of the flanging female die 2, so that the circular button cell 3 can be positioned and placed in two directions, the service life of the female die is prolonged by 1 time, and the use cost is greatly reduced to 1/2 compared with the original use cost; the punching and folding hole of the folding female die 2 consists of a conical transition hole 23 at the upper part and a cylindrical through hole 24 at the lower part, and the conical transition hole 23 is a conical transition surface, so that the battery is regularly formed without clamping a shell during folding, and is stably transitionally formed from the conical transition surface to the cylindrical through hole 24; the conical transition hole 23 and the cylindrical through hole 24 at the lower part need to be directly rubbed with the battery, the surface roughness Ra0.1-1.0 is preferably selected, the service life of the die is prolonged, the quality of the battery with edges folded is improved, and the battery is prevented from being damaged. The battery outer edge with the triangular conical grains is bent and wrapped in the circumferential direction of the circular button battery 3 through the edge folding convex rod 1 and the edge folding female die 2, and edge folding operation is completed.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a button lithium ion battery hem forming device which characterized by: the battery edge folding device comprises a circular cutter, an embossing mold and an edge folding mold, wherein the circular cutter is used for punching the appearance of a battery, the circular cutter avoids the lug of the battery, the embossing mold is composed of an embossing female mold and an embossing male mold, and the embossing female mold and the embossing male mold are pressed up and down to enable the battery to form triangular conical patterns; the edge folding die is used for bending and wrapping the outer edge of the battery with the triangular conical grains in the circumferential direction of the battery.
2. The button lithium ion battery flanging forming device of claim 1, which is characterized in that: the flanging die comprises a flanging convex rod and a flanging concave die which are matched.
3. The button lithium ion battery flanging forming device of claim 2, which is characterized in that: the edge-folding convex rod and the edge-folding concave die are made of one of PEEK, Teflon and ceramic alumina.
4. The button lithium ion battery flanging forming device of claim 2, which is characterized in that: and a transverse clearance groove and a longitudinal clearance groove are respectively arranged on the outer side of the punching hole of the flanging female die.
5. The button lithium ion battery flanging forming device of claim 2, which is characterized in that: the punching and folding hole of the folding female die consists of a conical transition hole at the upper part and a cylindrical straight-through hole at the lower part.
6. The button lithium ion battery flanging forming device of claim 5, which is characterized in that: the surface roughness of the conical transition hole and the cylindrical through hole is Ra0.1-1.0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023064883.2U CN214022985U (en) | 2020-12-17 | 2020-12-17 | Button lithium ion battery hem forming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023064883.2U CN214022985U (en) | 2020-12-17 | 2020-12-17 | Button lithium ion battery hem forming device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214022985U true CN214022985U (en) | 2021-08-24 |
Family
ID=77339827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023064883.2U Active CN214022985U (en) | 2020-12-17 | 2020-12-17 | Button lithium ion battery hem forming device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214022985U (en) |
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2020
- 2020-12-17 CN CN202023064883.2U patent/CN214022985U/en active Active
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