阅读说明：本技术 一种锂电池极耳成型工艺及装置 (Lithium battery tab forming process and device ) 是由 方秀忠 叶仕廉 林目春 于 2020-12-15 设计创作，主要内容包括：本发明提供一种锂电池极耳成型工艺及装置,涉及锂电池加工领域。该一种锂电池极耳成型装置,包括清洗装置和工作平台,所述工作平台设置在清洗装置的一侧,所述清洗装置为两段式设计,下部设置有水槽,所述清洗装置的上部侧壁设置有放卷轮,所述工作平台的上端依次设置有收卷轮、覆膜装置、刀具和毛刷,所述毛刷靠近毛刷,所述覆膜装置包括外壳,所述外壳的内部依次设置有加热模块、放膜轮和磨削轮,所述磨削轮的侧壁中部设置有磨槽。本装置实现极耳的完整生产,进行清洗、分切、覆膜和收卷,有效提高效率和生产的质量。(The invention provides a lithium battery tab forming process and a lithium battery tab forming device, and relates to the field of lithium battery processing. This lithium battery tab forming device, including belt cleaning device and work platform, work platform sets up one side at belt cleaning device, belt cleaning device is two segmentation designs, and the lower part is provided with the basin, belt cleaning device's upper portion lateral wall is provided with unreels the wheel, work platform's upper end has set gradually rolling wheel, tectorial membrane device, cutter and brush, the brush is close to the brush, tectorial membrane device includes the shell, the inside of shell has set gradually heating module, has unreeled membrane wheel and grinding wheel, the lateral wall middle part of grinding wheel is provided with the mill groove. The device realizes the complete production of the pole lugs, and can be used for cleaning, slitting, laminating and rolling, so that the efficiency and the production quality are effectively improved.)

1. The utility model provides a lithium battery tab forming device, includes belt cleaning device (10) and work platform (3), its characterized in that: the working platform (3) is arranged on one side of the cleaning device (10), the cleaning device (10) is designed in a two-section mode, a water tank (11) is arranged on the lower portion of the cleaning device, and a unreeling wheel (12) is arranged on the side wall of the upper portion of the cleaning device (10);

the upper end of work platform (3) has set gradually rolling wheel (1), tectorial membrane device (4), cutter (5) and brush (8), brush (8) are close to brush (8), tectorial membrane device (4) include shell (13), the inside of shell (13) has set gradually heating module (15), has put membrane wheel (16) and grinding wheel (17), the lateral wall middle part of grinding wheel (17) is provided with grinds groove (18).

2. The lithium battery tab forming device according to claim 1, wherein: the water tank is characterized in that a plurality of guide wheels are arranged inside the water tank (11), and an ultrasonic generator is fixedly connected inside the water tank (11).

3. The lithium battery tab forming device according to claim 1, wherein: one side of the winding wheel (1), the cutter (5) and the hairbrush (8) is provided with a supporting plate, the lower end of the supporting plate is fixedly connected with the upper end face of the working platform (3), and the other side of the supporting plate is provided with a driving motor.

4. The lithium battery tab forming device according to claim 1, wherein: the lower end four corners of the working platform (3) are fixedly connected with supporting columns (2).

5. The lithium battery tab forming device according to claim 1, wherein: the lower extreme of work platform (3) and below fixedly connected with collecting box (7) of cutter (5), the upper end of work platform (3) is provided with blanking mouth (6), and blanking mouth (6) communicates collecting box (7) downwards.

6. The lithium battery tab forming device according to claim 1, wherein: pinch rollers (14) are arranged in the shell (13) and on two sides of the heating module (15) and the film placing wheels (16), and the pinch rollers (14) are arranged in pairs.

7. A lithium battery tab forming process is characterized by comprising the following steps:

cleaning: placing the material (9) on an unwinding wheel (12), pulling out the material, winding the material downwards on a middle guide wheel of a water tank (11), then penetrating through a brush (8), adding cleaning liquid into the water tank (11) during cleaning, then starting an ultrasonic generator to clean the material (9), and removing the cleaning liquid on the surface of the material (9) as much as possible when the material (9) passes through the brush (8) after cleaning;

cutting: the material (9) comes out of the brush (8) and reaches the cutter (5), the cutter (5) consists of a plurality of blades, the distance between the blades is the width of a finished product, the material (9) enters the film coating device (4) after being cut, and meanwhile, the cut leftover material enters the collecting box (7) through the blanking port (6);

film covering: the cut materials (9) enter a film laminating device (4), edge grinding treatment is carried out on the materials (9) through a grinding wheel (17), the materials (9) rotate 90 degrees firstly, so that edges of two sides of the materials (9) extend into a grinding groove (18) and are in contact with the inner wall of the grinding groove (18), edge grinding treatment is realized on the grinding wheel (17) in the rotating process, the edges of the materials (9) are in transition and smooth, films of a film placing wheel (16) are attached to the upper end face and the lower end face of the materials (9), bubbles are avoided through treatment of a pressing wheel (14), the upper end films and the lower end films are mutually fused through a heating module (15), and before the materials (9) are sent out of the film laminating device (4), a pair of pressing wheels (14) is required to carry out extrusion treatment, and the stability of the film laminating is guaranteed;

winding: after the material (9) is sent out, the winding wheel (1) is wound and arranged.

8. The forming process of the lithium battery tab as claimed in claim 7, wherein: the cleaning solution is ethanol.

9. The forming process of the lithium battery tab as claimed in claim 7, wherein: the melting point (K) of the film coating material is not lower than 130 ℃, and the heating temperature of the heating module (15) is (K +15) ± 3 ℃.

10. The forming process of the lithium battery tab as claimed in claim 7, wherein: the conveying speed of the materials (9) is 2 +/-0.1 m/s.

Technical Field

The invention relates to the technical field of lithium battery production, in particular to a lithium battery tab forming process and a lithium battery tab forming device.

Background

The tab is a raw material of a lithium ion polymer battery product. For example, the tabs are needed for mobile phone batteries, bluetooth batteries, notebook batteries and the like used in our lives. The battery is divided into positive and negative electrodes, the tabs are metal conductors leading out the positive and negative electrodes from the battery core, and the ears of the positive and negative electrodes of the battery are contact points during charging and discharging. This contact point is not the copper sheet that we see on the outside of the cell, but rather a connection inside the cell. The tab is divided into three materials, the positive electrode of the battery uses aluminum (Al) material, the negative electrode uses nickel (Ni) material, the negative electrode also has copper nickel (Ni-Cu) material, they are compounded by film and metal belt, as shown in figure 1. The film is an insulated part on the tab, and has the functions of preventing short circuit between the metal belt and the aluminum plastic film when the battery is packaged, and preventing liquid leakage when the film is sealed and bonded with the aluminum plastic film by heating (about 140 ℃) in a hot melting way during packaging. One tab is sandwiched by two sheets of film. The film used in the current market comprises three types of black glue, white glue and single-layer glue.

In the existing production process of the tab, raw materials need to be cleaned, and stains on the surfaces of the raw materials are removed. The cleaning step and the slitting and laminating of the materials are separated. Is not beneficial to improving the production efficiency of the pole lug. And after the electrode lugs are cut, the edges are unprocessed, burrs exist, the edges are sharp, and the film and the electrode lugs are not fully contacted. The problem of battery leakage is easily caused.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a lithium battery tab forming process and a lithium battery tab forming device, which solve the problems that the prior device is low in production efficiency and the product is easy to cause battery leakage.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: a lithium battery tab forming device comprises a cleaning device and a working platform, wherein the working platform is arranged on one side of the cleaning device, the cleaning device is designed in a two-section mode, a water tank is arranged on the lower portion of the cleaning device, and a unwinding wheel is arranged on the side wall of the upper portion of the cleaning device;

the upper end of the working platform is sequentially provided with a winding wheel, a film laminating device, a cutter and a brush, the brush is close to the brush, the film laminating device comprises a shell, the inside of the shell is sequentially provided with a heating module, a film releasing wheel and a grinding wheel, and the middle part of the side wall of the grinding wheel is provided with a grinding groove.

Preferably, a plurality of guide wheels are arranged inside the water tank, and an ultrasonic generator is fixedly connected inside the water tank.

Preferably, one side of the winding wheel, the cutter and the hairbrush is provided with a supporting plate, the lower end of the supporting plate is fixedly connected with the upper end face of the working platform, and the other side of the supporting plate is provided with a driving motor.

Preferably, four corners of the lower end of the working platform are fixedly connected with supporting columns.

Preferably, the lower end of the working platform is fixedly connected with a collecting box below the cutter, and the upper end of the working platform is provided with a blanking port which is communicated with the collecting box downwards.

Preferably, pinch rollers are arranged in the shell, on two sides of the heating module and the film placing wheel, and the pinch rollers are arranged in pairs.

Preferably, the lithium battery tab forming process includes the following steps:

cleaning: placing the material on a unreeling wheel, pulling out the material, winding the material downwards on a middle guide wheel of a water tank, then penetrating through a hairbrush, adding cleaning fluid into the water tank during cleaning, then starting an ultrasonic generator to clean the material, and removing the cleaning fluid on the surface of the material as much as possible when the material passes through the hairbrush after the material is cleaned;

cutting: the material comes out of the brush and reaches the position of a cutter, the cutter consists of a plurality of blades, the distance between the blades is the width of a finished product, the material enters a film covering device after being cut, and meanwhile, cut leftover materials enter a collecting box through a blanking port;

film covering: the cut materials enter a film laminating device and are subjected to edging treatment by a grinding wheel, the materials rotate by 90 degrees at first, so that two side edges of the materials extend into a grinding groove and are in contact with the inner wall of the grinding groove, the edging treatment is realized by the grinding wheel in the rotating process, the edges of the materials are in transition and smooth, then a film of the film laminating wheel is attached to the upper end surface and the lower end surface of the materials, bubbles are prevented from being generated by treatment of a pressing wheel, the upper and lower end films are fused together by a heating module, and a pair of pressing wheels are required for extrusion treatment before the materials are sent out of the film laminating device, so that the stability of the film laminating is ensured;

winding: and after the materials are sent out, the winding wheel is wound and arranged.

Preferably, the cleaning solution is ethanol.

Preferably, the melting point (K) of the film coating material is not lower than 130 ℃, and the heating temperature of the heating module is (K +15) ± 3 ℃.

Preferably, the conveying speed of the materials is 2 +/-0.1 m/s.

(III) advantageous effects

The invention provides a lithium battery tab forming process and a lithium battery tab forming device. The method has the following beneficial effects:

1. the invention is provided with the cleaning device, the cleaning liquid is ethanol, the material is not damaged, the drying is easy, the cleanness of the material is ensured, the product quality is favorably improved, and the combination of the cleaning device and the film covering device is favorable for improving the production efficiency.

2. According to the edge grinding machine, after the material is cut, the edge of the material is processed, so that the edge of the material is smooth, the material is vertically processed during edge grinding, the edge of the material is fully contacted with the inner wall of the grinding groove while the material is turned over, and the edge grinding processing is convenient.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a schematic cross-sectional view of a film covering device of the present invention;

FIG. 3 is a side schematic view of a grinding wheel of the present invention.

Wherein, 1, a winding wheel; 2. a support pillar; 3. a working platform; 4. a film covering device; 5. a cutter; 6. a blanking port; 7. a collection box; 8. a brush; 9. material preparation; 10. a cleaning device; 11. a water tank; 12. unwinding wheels; 13. a housing; 14. a pinch roller; 15. a heating module; 16. a film placing wheel; 17. grinding the wheel; 18. and (5) grinding the groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b):

as shown in fig. 1-3, an embodiment of the present invention provides a lithium battery tab forming device, which includes a cleaning device 10 and a working platform 3, wherein the cleaning device 10 is used for cleaning a material 9 to clean oil stains and impurities on the surface of the material 9, the working platform 3 is disposed on one side of the cleaning device 10, the cleaning device 10 is designed in a two-stage manner, a water tank 11 is disposed on the lower portion of the cleaning device, and a unwinding wheel 12 is disposed on the upper side wall of the cleaning device 10.

The upper end of the working platform 3 is sequentially provided with a winding wheel 1, a film coating device 4, a cutter 5 and a brush 8, the brush 8 is close to the brush 8, the film coating device 4 is also provided with a box door, used for internal operation and maintenance, a plurality of blades are arranged on the cutter 5, the blades are arranged at equal intervals, fixing nuts are arranged at both ends of the blades, the distance between the fixed nut boundary blades can be set according to the parameters of tab production, the film covering device 4 comprises a shell 13, a heating module 15, a film releasing wheel 16 and a grinding wheel 17 are sequentially arranged in the shell 13, the heating module 15 adopts an electric heating mode, meanwhile, the heating module 15 is placed inside the film covering device 4, heat loss can be reduced, the grinding groove 18 is formed in the middle of the side wall of the grinding wheel 17, and when the edge of the material 9 is in contact with the inner wall of the grinding groove 18, the edge of the material 9 is processed in the rotating process of the grinding wheel 17.

The inside of the water tank 11 is provided with a plurality of guide wheels, the materials 9 are sequentially wound on the guide wheels by setting the number of the guide wheels, the time of the materials 9 in the water tank 11 is prolonged, the cleaning time of the materials 9 can be improved under the condition that the unreeling speed of the materials 9 is constant, the inside of the water tank 11 is fixedly connected with an ultrasonic generator which is a common cleaning appliance, the device can be selected from proper models, so that excessive introduction is avoided, a supporting plate is arranged on one side of the winding wheel 1, the cutter 5 and the hairbrush 8, the lower end of the supporting plate is fixedly connected with the upper end face of the working platform 3, a driving motor is arranged on the other side of the supporting plate and used for driving each part to rotate, the other scheme is that the rotating shafts of the winding wheel 1, the cutter 5 and the hairbrush 8 are parallel, and the conveying speed of the materials 9 is kept constant in the whole device, through gear, sprocket and synchronous pulley isotructure, realize the transmission to whole device, this mode control transmission control is simple, the equal fixedly connected with support column 2 in lower extreme four corners of work platform 3.

Work platform 3's lower extreme and in the below fixedly connected with collecting box 7 of cutter 5, work platform 3's upper end is provided with blanking mouth 6, and blanking mouth 6 communicates collecting box 7 downwards, cuts the back, sends the unnecessary leftover bits of material 9 to collecting box 7 through blanking mouth 6 in, and collecting box 7 is provided with the chamber door simultaneously, carries out the clearance of periodic waste material.

Inside and the heating module 15 of shell 13 and the both sides of putting membrane wheel 16 all are provided with pinch roller 14, pinch roller 14 is for setting up in pairs, a pair of pinch roller 14 between putting membrane wheel 16 and grinding wheel 17, be used for changing material 9 through grinding wheel 17 rear position state, make material 9 resume the level, a pair of pinch roller 14 between heating module 15 and putting membrane wheel 16, cover the upper and lower surface at material 9 with the membrane pressure, and a pair of pinch roller 14 at heating module 15 opposite side, be used for with material 9 and membrane, abundant pressfitting, the chamber door that tectorial membrane device 4 set up, a membrane supplement for putting on the membrane wheel 16.

A lithium battery tab forming process comprises the following steps:

cleaning: placing the material 9 on a unreeling wheel 12 and pulling out the material, winding the material downwards on a middle guide wheel of a water tank 11, then passing through a brush 8, when cleaning, adding a cleaning solution into the water tank 11, wherein the cleaning solution is ethanol which is an organic solvent and can dissolve oil stains, and simultaneously the ethanol is easy to evaporate, after the material 9 is cleaned, the material 9 can be quickly dried, then starting an ultrasonic generator to clean the material 9, after the material 9 is cleaned, when the material passes through the brush 8, the cleaning solution on the surface of the material 9 is removed as much as possible, and the rest of the liquid can be evaporated in the conveying process of the material 9;

cutting: the material 9 comes out of the brush 8 and reaches the cutter 5, the cutter 5 is composed of a plurality of blades, the distance between the blades is the width of a finished product, the material 9 enters the film covering device 4 after being cut, and meanwhile, cut leftover materials enter the collecting box 7 through the blanking port 6;

film covering: the cut materials 9 enter the film covering device 4, the materials 9 are firstly subjected to edging treatment by the grinding wheel 17, the materials 9 are firstly rotated by 90 degrees, so that the edges of two sides of the materials 9 extend into the grinding groove 18 and are contacted with the inner wall of the grinding groove 18, the edging treatment is realized by the grinding wheel 17 in the rotating process, so that the edges of the materials 9 are transited and rounded, the materials are then rotated by 90 degrees, the materials 9 are pressed by the pressing wheel 14, the vertical edging treatment of the materials 9 is adopted, the axis of the grinding wheel 17 is parallel to the axis of the pressing wheel 14 and the axis of the film placing wheel 16 and the grinding wheel 17, the transmission setting is easy, meanwhile, when the materials 9 are overturned, the edges of the materials 9 are fully contacted with the inner wall of the grinding groove 18, the edging treatment is convenient, the materials 9 are horizontally placed, then the films of the film placing wheel 16 are attached to the upper end face and the lower end face of the materials, the melting point K of the film covering material is not lower than 130 ℃, the heating temperature of the heating module 15 is K +15 +/-3 ℃, and a pair of pressing wheels 14 is required for extrusion treatment before the material 9 is sent out of the film covering device 4, so that the stability of film covering is ensured;

winding: after the material 9 is sent out, the winding wheel 1 winds and arranges the material, and the conveying speed of the material 9 is 2 +/-0.1 m/s.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.