CN215430387U

CN215430387U - Roller cleaning device

Info

Publication number: CN215430387U
Application number: CN202120557105.2U
Authority: CN
Inventors: 杨立华
Original assignee: Shanghai Lanjun New Energy Technology Co Ltd
Current assignee: Shanghai Lanjun New Energy Technology Co Ltd
Priority date: 2021-03-18
Filing date: 2021-03-18
Publication date: 2022-01-07
Anticipated expiration: 2031-03-18

Abstract

The utility model relates to a roller cleaning device, which comprises a mounting structure body arranged at a position near the surface of a roller, wherein a brush used for removing dust on the surface of the roller through self uniform rotation, an automatic alcohol atomizing device used for atomizing alcohol and spraying the alcohol on the surface of the roller, a baffle used for knocking off the dust on the brush, and a blowing device used for blowing up the dust and alcohol remained on the surface of the roller are arranged in the mounting structure body, and an outlet of the mounting structure body and a negative pressure dust collecting device used for pumping the blown-up dust and alcohol away. Compared with the prior art, the roller wiping device can not cause equipment halt in the using process, can meet the roller wiping effect in high-speed operation, and cannot influence the product quality.

Description

Roller cleaning device

Technical Field

The utility model relates to the technical field of lithium battery production and processing, in particular to a roller cleaning device.

Background

In the production process of the lithium battery, an essential rolling procedure is provided. However, when the negative electrode material is rolled, due to the characteristics of the material, when the material is rolled, dust on the surface is easily adhered to the roller, so that a plurality of concave pits appear on the surface of the pole piece, and in addition, the dust adhered to the surface of the roller easily falls onto the surface of the pole piece, so that secondary pollution is caused, and the quality of the battery is greatly influenced.

At present, two methods of scraper dust removal and non-woven fabric matched alcohol wiping dust removal are commonly used for solving the problem.

First, scraper removes dust

The structure of the scraper for removing dust is shown in figure 1, the scraper has a small clearance with a roller, the position of a metal scraper is fixed, and dust on the surface of the roller is scraped by the metal scraper in the rotation overshoot of the roller and then falls into a dust collecting box.

The method has the technical defects that:

1. the service life of the scraper is only 5-10 days, and the scraper needs to be replaced frequently.

2. Because a gap is reserved between the scraper and the roller (if no gap exists, the service life of the roller is reduced due to long-time friction), dust remains on the surface of all the rollers, and the dust removal effect is not ideal.

Secondly, the non-woven fabrics are matched with alcohol to wipe and remove dust

As shown in fig. 2, the wiping mechanism (1 set of each of the upper and lower wiping mechanisms) mainly comprises a non-woven fabric unwinding roll, a dry wiping roll, a passing roll, a wet wiping roll, an alcohol spraying device and a non-woven fabric winding roll. The motion path of the non-woven fabric is as follows in sequence: unreeling, dry wiping roller, roller passing, wet wiping roller and reeling. Alcohol is sprayed on the wet wiping roller by the alcohol spraying device, dust on the surface of the roller is wiped by the wet wiping roller, if alcohol is not used, the wet wiping roller directly wipes the dust without effect, and then the wiped roller wipes the residual alcohol on the surface of the roller clean by the dry wiping roller.

The method has the technical defects that:

1. the non-woven fabrics are consumable products and need to be replaced regularly. When changing the non-woven fabrics in addition, equipment need be shut down, has reduced the rate of equipment utilization.

2. This mechanism can only be used for low speed machines. After the roller is wiped by the dry wiping roller, a very small amount of alcohol still remains on the surface of the roller, and when the speed of the roller is less than 40m, the alcohol remaining on the dry wiping part can be completely volatilized when reaching the rolling part; if the speed of the roller is more than 40m/min, the residual alcohol at the dry wiping part reaches the rolling part and is not completely volatilized, and the part of alcohol can pollute the pole piece, thereby causing poor product quality.

SUMMERY OF THE UTILITY MODEL

The object of the present invention is to overcome the above-mentioned drawbacks of the prior art and to provide a roll cleaning device.

The purpose of the utility model can be realized by the following technical scheme:

a roller cleaning device comprises a mounting structure body arranged at a position near the surface of a roller, wherein a brush used for removing dust on the surface of the roller through self constant-speed rotation, an automatic alcohol atomizing device used for atomizing alcohol and spraying the alcohol on the surface of the roller, a baffle used for knocking off the dust on the brush and a blowing device used for blowing off the residual dust and alcohol on the surface of the roller are arranged in the mounting structure body, and an outlet of the mounting structure body is connected with a negative pressure dust suction device used for pumping the blown-off dust and alcohol away.

Furthermore, the negative pressure dust suction device adopts an industrial dust suction machine.

Furthermore, the automatic alcohol spraying device consists of an atomizer and a spray head with alcohol inside.

Furthermore, the blowing device comprises a structural body, and a pressure stabilizing cavity is arranged in the structural body.

Furthermore, the structure body is also internally provided with a slit communicated with the pressure stabilizing cavity and used for ejecting high-speed gas.

Furthermore, the pressure stabilizing cavity is also communicated with an air pipe used for introducing external compressed air.

Further, the diameter of the slit is at least 0.02 mm.

Further, the pipe diameter of the air pipe is at least 12mm, and the pressure of the compressed air is at least 0.5 MPa.

Furthermore, the wind speed of the blowing device is 0-100 m/s.

Further, the wind speed of the negative pressure dust suction device is more than 5 m/s.

Compared with the prior art, the utility model has the following advantages:

(1) the roller wiping device has the advantages that the device can not be stopped in the using process, the roller wiping effect in high-speed operation can be met, and the product quality can not be influenced.

(2) The utilization rate of equipment can be improved while the product quality in high-speed rolling is ensured.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic structural diagram of a corresponding apparatus employing a scraper dust removal method in the prior art;

FIG. 2 is a schematic structural diagram of a corresponding device for wiping and removing dust by using non-woven fabrics and alcohol in the prior art;

FIG. 3 is a schematic view of the overall structure of the cleaning device of the present invention;

FIG. 4 is a schematic view of the overall structure of the blowing device in the cleaning device of the present invention;

in the figure, 1 is an upper roll, 2 is an upper scraper, 3 is an upper dust collecting box, 4 is a lower roll, 5 is a lower scraper, 6 is a lower dust collecting box, 7 is a pole piece, 8 is a non-woven fabric unreeling, 9 is a dry wiping roll, 10 is a through roll, 11 is a wet wiping roll, 12 is an alcohol spraying device, 13 is a non-woven fabric unreeling, 14 is an installation structure body, 15 is a brush, 16 is an automatic atomizing alcohol device, 17 is a baffle, 18 is a blowing device, 19 is a negative pressure dust collecting device, 20 is a pressure stabilizing cavity, 21 is a slit, and 22 is an air pipe.

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 some, not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, shall fall within the scope of protection of the present invention.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. 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.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the description refers must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in figure 3, the mechanism (1 set of upper and lower parts, same structure) of the utility model mainly comprises a brush, a baffle, an automatic alcohol spraying device, a blowing device and a negative pressure dust suction device.

The blowing device is shown in fig. 4. Compressed air of 0.5MPa is passed through

The air pipe enters the pressure stabilizing cavity and then is ejected out at high speed through a slit with the thickness of 0.02mm, and the wind speed V is₂Can reach 100 m/s.

The practical use process of the device of the utility model is as follows:

the first step is as follows: the automatic alcohol spraying device firstly atomizes alcohol and then uniformly sprays the alcohol on the roller in a timed and quantitative manner;

a second step; the brush rotating at a constant speed removes dust on the surface of the roller, and the baffle is used for knocking the dust on the brush down to prevent the dust from attaching to the brush;

the third step: the residual dust and alcohol on the surface of the roller are blown by a high-speed blower (wind speed V)₂100m/s) blow-up;

the fourth step: the negative pressure dust suction device (the wind speed at the mouth part is more than 5m/s) sucks the blown dust and alcohol away.

While the utility model has been described with reference to specific embodiments, the utility model is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the utility model. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The roll cleaning device is characterized by comprising a mounting structure body (14) arranged at a position near the surface of a roll, wherein a hairbrush (15) used for removing dust on the surface of the roll through self constant-speed rotation, an automatic alcohol atomizing device (16) used for atomizing alcohol and spraying the alcohol on the surface of the roll, a baffle (17) used for knocking off the dust on the hairbrush (15) and a blowing device (18) used for blowing up the dust and alcohol remained on the surface of the roll are arranged in the mounting structure body (14), and an outlet of the mounting structure body (14) is connected with a negative pressure dust suction device (19) used for pumping away the blown-up dust and alcohol;

the automatic alcohol atomizing device (16) consists of an atomizer and a nozzle with alcohol inside;

the blowing device (18) comprises a structural body, wherein a pressure stabilizing cavity (20) is arranged in the structural body;

the structure body is also internally provided with a slit (21) communicated with the pressure stabilizing cavity (20) and used for jetting high-speed gas;

the pressure stabilizing cavity (20) is also communicated with an air pipe (22) used for leading in external compressed air.

2. A roll cleaning device according to claim 1, characterized in that the vacuum cleaner (19) is an industrial vacuum cleaner.

3. A roll cleaning device as claimed in claim 1, characterized in that the slits (21) have a diameter of at least 0.02 mm.

4. A roll cleaning device as claimed in claim 1, characterized in that the air duct (22) has a duct diameter of at least 12mm and the pressure of the compressed air is at least 0.5 MPa.

5. A roll cleaning device as claimed in claim 1, characterized in that the air blowing means (18) has an air speed of 0m/s to 100 m/s.

6. A roll cleaning device as claimed in claim 1, characterized in that the air speed of the vacuum suction device (19) is greater than 5 m/s.