CN210304315U - Coating edge thinning device and coating machine - Google Patents

Abstract

The utility model discloses a coating edge thinning device, which comprises a steel belt and buckle locking mechanisms symmetrically arranged at the left end and the right end of the steel belt; the utility model also discloses a coating machine, including scraper roll and coating roll, the scraper roll is located the coating roll top is followed both ends are all installed about scraper roll length direction the thin device that disappears, the thin device winding that disappears is in on the lateral wall of scraper roll circumferencial direction. The edge thinning device of the utility model has simple structure and convenient use, the steel belt can be bent, and the left and right ends of the steel belt are provided with the buckle locking mechanisms, thereby being convenient for installing the edge thinning device on the scraper roller; the utility model discloses a coating machine, install the marginal thin device that disappears between scraper roll and coating roll, make the coating edge can effectively disappear thin 5-10um, avoid because of the marginal bulging pole piece that causes is bad and scrap, improve production efficiency simultaneously.

Description

Coating edge thinning device and coating machine

Technical Field

The utility model relates to a coating edge thin device and coating machine that disappears especially relates to a thin device that disappears and install this coating machine that disappears thin device that disappears that is used for lithium ion battery and ultracapacitor system coating edge, belongs to lithium ion battery and ultracapacitor system and makes the equipment field.

Background

A lithium ion battery is a type of secondary battery that mainly operates by movement of lithium ions between a positive electrode and a negative electrode. During charging and discharging, Li + is inserted and extracted back and forth between two electrodes: during charging, Li + is extracted from the positive electrode and is inserted into the negative electrode through the electrolyte, and the negative electrode is in a lithium-rich state; the opposite is true during discharge.

The super capacitor is also called as a double electric layer capacitor, and is a novel environment-friendly energy storage element. The basic principle of the super capacitor is that an electric double layer structure consisting of an active substance porous electrode and electrolyte is utilized to obtain super capacity, so that the energy storage mechanism is physical energy storage and does not involve chemical reaction, which means that the super capacitor has charge-discharge cycle life of hundreds of thousands of times. The charge storage area of the traditional capacitor is a simple plane, the super capacitor uses active substances as positive and negative electrodes, the super specific surface area of the super capacitor is utilized to increase the storage capacity of charges, and electric double layers are formed by charged particles near the surfaces of the positive and negative electrodes, so that the super capacitor can have capacity of farad level.

The existing coating machine for manufacturing the lithium ion battery and the super capacitor is not provided with a device specially aiming at edge thinning, tail rolling packing paper or an extrusion method is generally adopted to relieve the edge bulging situation, the operation steps are complicated, the problem of edge bulging is solved from the rear end by the tail rolling packing paper or the extrusion method, but the problems of edge explosion and lithium precipitation of a battery cell negative electrode sheet exist in the roll pair in the next process.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, the utility model aims at providing a thin device and coating machine disappear at coating edge, disappear thin device with the coating edge and install to the coating machine between scraper roll and the coating roll, the coating edge can effectively disappear thin 5-10um, solve the marginal condition problem of bulging from the source, avoid because of the marginal pole piece that the edge is bulged and cause is bad and scrap, improve production efficiency simultaneously.

In order to realize the above purpose, the utility model discloses a technical scheme:

a coating edge thinning device comprises a steel belt and buckle locking mechanisms symmetrically arranged at the left end and the right end of the steel belt.

Further, the buckle locking mechanism comprises a buckle and a clamping block;

both ends all are provided with card hole I about the steel band, the fixture block upper end is equipped with card hole II, is equipped with the steel band perforation on the fixture block lateral wall, the steel band passes the steel band perforation, the buckle passes card hole II and inserts in the card hole I.

Furthermore, V-shaped grooves are formed in the left side wall and the right side wall of the lower end of the clamping block along the length direction of the clamping block.

Further, the steel belt is a stainless steel belt.

Further, the thickness of the stainless steel band is 0.01-0.05mm, the width of the stainless steel band is 30-50mm, and the length of the stainless steel band is 200-500 mm.

The utility model discloses thin device disappears based on above-mentioned edge still provides a coating machine, including scraper roller and coating roll, the scraper roller is located the coating roll top is followed all install at both ends about scraper roller length direction thin device disappears, thin device winding that disappears is in on the lateral wall of scraper roller circumferencial direction.

Further, a sliding groove is formed in the side wall of the scraper roller, and a clamping block at the lower end of the V-shaped groove is slidably mounted in the sliding groove.

The utility model has the advantages that:

the edge thinning device of the utility model has simple structure and convenient use, the steel belt can be bent, and the left and right ends of the steel belt are provided with the buckle locking mechanisms, thereby being convenient for installing the edge thinning device on the scraper roller of the coating machine;

the utility model discloses a coating machine, install the marginal thin device that disappears between scraper roll and coating roll, make the coating edge can effectively disappear thin 5-10um, solve marginal bulging feelings problem from the source, avoid because of the marginal pole piece that causes that the limit is bad and scrap, improve production efficiency simultaneously.

Drawings

FIG. 1 is a schematic structural view of an edge thinning apparatus according to the present invention;

FIG. 2 is an exploded view of the edge thinning apparatus of the present invention;

FIG. 3 is a schematic structural view of an edge thinning apparatus installed between a doctor roll and a coating roll of the coating machine of the present invention;

in the figure: 1. a steel belt; 2. buckling; 3. a clamping block; 4. a clamping hole I; 5. a clamping hole II; 6. perforating a steel belt; 7. a V-shaped groove; 8. a doctor roll; 9. a coating roll; 10. a chute.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be further explained with reference to the accompanying drawings. In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Example 1

A coating edge thinning device is shown in figures 1-2 and comprises a steel strip 1 and buckle locking mechanisms symmetrically arranged at the left end and the right end of the steel strip 1. In the use process, the steel strip 1 can be bent, and the thinning device is fixed between the scraper roll and the coating roll of the coating machine through the buckle locking mechanisms at the left end and the right end of the steel strip 1.

Example 2

The embodiment is further improved based on embodiment 1, and as shown in fig. 1-2, the buckle locking mechanism comprises a buckle 2 and a clamping block 3;

both ends all are provided with card hole I4 about steel band 1, and 3 upper ends of fixture block are equipped with card hole II 5, are equipped with steel band perforation 6 on the 3 lateral walls of fixture block, and steel band 1 passes steel band perforation 6, and buckle 2 passes card hole II 5 and inserts in the card hole I4.

In the use process, firstly, the steel belt 1 penetrates through the steel belt through hole 6 to a proper position, the clamping hole I4 is aligned with the clamping hole II 5, and then the buckle 2 penetrates through the clamping hole II 5 and is inserted into the clamping hole I4.

Example 3

In this embodiment, a further improvement is made based on embodiment 2, and as shown in fig. 1-2, V-shaped grooves 7 are formed on the left and right side walls of the lower end of the latch 3 along the length direction of the latch 3. In the use process, the fixture block 3 at the lower end of the V-shaped groove 7 slides in the sliding groove, and then the thinning device is fixed.

Example 4

This example was further modified based on any one of examples 1 to 3, and as shown in fig. 1 to 2, the steel strip 1 was a stainless steel strip. During use, bending of the steel strip 1 is facilitated, and at the same time, the steel strip 1 is prevented from rusting.

Example 5

This example was further modified based on any of examples 1 to 4, and as shown in FIG. 1 to 2, the thickness of the stainless steel strip was 0.01 to 0.05mm, the width of the stainless steel strip was 30 to 50mm, and the length of the stainless steel strip was 200-500 mm. In the using process, the length, the width and the thickness of the stainless steel band are suitable, so that the stainless steel band is convenient to mount on a scraper roller of a coating machine.

Example 6

A coating machine comprises a scraper roller 8 and a coating roller 9, wherein the scraper roller 8 is positioned above the coating roller 9, the thinning device in the embodiment 5 is arranged at the left end and the right end of the length direction of the scraper roller, and the thinning device is wound on the side wall of the scraper roller 8 in the circumferential direction.

In the use process, the thinning device is arranged on the scraper roller 8 of the coating machine, so that the coating edge can be effectively thinned by 5-10um, the pole piece defect and scrapping caused by edge bulging are avoided, and the production efficiency is improved.

Example 7

The embodiment is further improved based on the embodiment 6, as shown in fig. 3, the side wall of the doctor roller 8 is provided with a sliding groove 10, and the fixture block 3 at the lower end of the V-shaped groove 7 is slidably mounted in the sliding groove 10.

During the use process, the fixture block 3 at the lower end of the V-shaped groove 7 is slidably arranged in the sliding groove 10, so that the installation of the thinning device is facilitated.

For better understanding of the present invention, the following description is made in conjunction with the above embodiments to describe the working principle of the present invention completely:

when using, at first with the lower extreme slidable mounting of V type groove 7 on two fixture blocks 3 in the spout 10 of scraper roller 8, then pass two fixture blocks 3 in proper order with both ends about stainless steel band 1 and go up steel band perforation 6 to suitable position, make card hole I4 and card hole II 5 align, pass card hole II 5 again with buckle 2 at last and insert card hole I4 in, fix stainless steel band 1, make its laminating on the lateral wall of scraper roller 8.

After the slurry is coated on the foil of the coating machine, the edge of the dried pole piece is thinned by 5-10um due to the existence of the thinning device, so that the poor and scrapping of the pole piece caused by edge bulging is avoided, and the production efficiency is improved.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (7)

1. A coated edge thinning apparatus, comprising: comprises a steel belt (1) and buckle locking mechanisms symmetrically arranged at the left end and the right end of the steel belt (1).

2. A coated edge-weakening device as claimed in claim 1, wherein: the buckle locking mechanism comprises a buckle (2) and a clamping block (3);

both ends all are provided with card hole I (4) about steel band (1), fixture block (3) upper end is equipped with card hole II (5), is equipped with steel band perforation (6) on fixture block (3) lateral wall, steel band (1) passes steel band perforation (6), buckle (2) pass card hole II (5) and insert in the card hole I (4).

3. A coated edge-weakening device as claimed in claim 2, characterized in that: v-shaped grooves (7) are formed in the left side wall and the right side wall of the lower end of the clamping block (3) along the length direction of the clamping block (3).

4. A coated edge-weakening device as claimed in claim 1, wherein: the steel belt (1) is a stainless steel belt.

5. A coated edge-weakening device according to claim 4, characterized in that: the thickness of the stainless steel band is 0.01-0.05mm, the width of the stainless steel band is 30-50mm, and the length of the stainless steel band is 200-500 mm.

6. A coater, characterized in that: the device comprises a scraper roller (8) and a coating roller (9), wherein the scraper roller (8) is positioned above the coating roller (9), the thinning device of any one of claims 1 to 5 is arranged at the left end and the right end of the scraper roller (8) in the length direction, and the thinning device is wound on the side wall of the scraper roller (8) in the circumferential direction.

7. A coater according to claim 6, wherein: the side wall of the scraper roller (8) is provided with a sliding groove (10), and a clamping block (3) at the lower end of the V-shaped groove (7) is slidably arranged in the sliding groove (10).

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