Roller press for lithium battery production

Abstract

The utility model relates to the technical field of lithium battery production, and discloses a roller press for lithium battery production, which comprises a mounting seat, the mounting seat is provided with a compression roller mechanism for rolling and coating a pole piece, and cleaning structures are arranged on two sides of the compression roller mechanism and are used for cleaning residual paint and impurities on a compression roller; the cleaning structure comprises a dust collecting shell, a baffle and a scraper, the dust collecting shell makes contact with the two pressing rollers and is used for scraping away residual coating and impurities on the pressing rollers, the residual coating and impurities scraped away from the pressing rollers slide into the baffle through the dust collecting shell, and the scraper is fixedly installed on the baffle. And by arranging the cleaning structure, the first pressing roller and the second pressing roller rotate, coating and impurities left on the surfaces of the first pressing roller and the second pressing roller can be cleaned through a scraping plate on the cleaning structure, the cleaned impurities fall into the dust collecting shell to be collected, and the surfaces of the pressing rollers are kept clean.

Description

Technical Field

[0001] The present application relates to the technical field of lithium battery production, and specifically to a roller press for lithium battery production. Background Art

[0002] Lithium batteries usually include a battery cell, an electrolyte, a protection circuit and a shell. The battery cell includes a positive electrode, a negative electrode and a separator. The positive electrode and the negative electrode are collectively referred to as battery pole pieces. In order to improve the density and thickness consistency of the surface material of the battery pole piece, the battery pole piece must be rolled after the coating process. This process is called rolling of the battery pole piece. The process of rolling the battery pole piece is: under the action of the friction force generated between the roller and the battery pole piece, the battery pole piece is pulled between the relatively rotating rollers, and the battery pole piece is compressed and deformed.

[0003] Lithium battery roller press is one of the main equipment in the battery electrode production line. During the rolling process of battery electrodes, especially the negative electrode material, it is easy to stick to the roller. If it is not cleaned in time, the roller will soon be unable to continue rolling the electrode. Long-term rolling will cause the surface of the upper roller rod to be contaminated with paint, and the rolled surface is no longer smooth, making the roller rod less effective in coating rolling, so it is very important to clean the roller surface in time.

[0004] At present, most of the roller wiping designs of rolling mills on the market are unable to thoroughly clean the roller surface, especially for some pole pieces with severe roller sticking, which cannot be solved and have to be wiped manually, which reduces production efficiency and increases production costs. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present application provides a roller press for lithium battery production.

[0006] To solve the above problems, the present application provides the following technical solutions: a roller press for lithium battery production, comprising: a mounting seat, the mounting seat is provided with a roller mechanism for rolling coated pole pieces, and cleaning structures are provided on both sides of the roller mechanism for cleaning residual paint and impurities on the rollers; the roller mechanism includes at least two rollers, the two rollers are arranged relatively parallel, and the two rollers can realize synchronous but opposite relative rotation under the action of a driving component; the cleaning structure includes a dust collecting shell, a baffle and a scraper, the dust collecting shell is in contact with the two rollers, and is used to scrape off residual paint and impurities on the rollers, the residual paint and impurities scraped off the rollers slide into the baffle through the dust collecting shell, and the scraper is fixedly installed on the baffle to prevent the residual paint and impurities on the rollers from being scraped off by the dust collecting shell and causing secondary contamination to the rollers.

[0007] Preferably, the pressing roller mechanism comprises a first pressing roller and a second pressing roller, the first pressing roller and the second pressing roller are rotatably connected between a mounting seat, and a gap is set between the first pressing roller and the second pressing roller.

[0008] Preferably, slide grooves are respectively provided on the inner sides of the mounting seats, and the cleaning structure is slidably connected inside the slide grooves via sliding rods fixedly installed on both sides.

[0009] Preferably, a telescopic cylinder is provided on the sliding rod, and the telescopic cylinder is used to push the sliding rod to slide inside the sliding groove, and the telescopic cylinder is fixedly installed on the inner side of the mounting seat.

[0010] Preferably, a collecting mechanism is fixedly installed on the left side of the mounting seat, and the collecting mechanism includes a dust box fixedly installed on the left side of the mounting seat through a bracket. The dust box is provided with a fan for extracting residual paint and impurities cleaned by the cleaning structure into the dust box for collection.

[0011] Preferably, the fan includes an air inlet end and an air outlet end, the air inlet end is connected to a dust suction pipe, the air outlet end is connected to the interior of a dust collecting box, the end of the dust suction pipe is connected to a dust collecting pipe, the dust collecting pipe is connected to several groups of connecting pipes, and the ends of the connecting pipes are connected to the interior of a cleaning structure.

[0012] Compared with the prior art, the present application provides a roller press for lithium battery production, which has the following beneficial effects:

[0013] The roller press for lithium battery production is provided with a cleaning structure. The first pressing roller and the second pressing roller rotate. The scraper on the cleaning structure can clean the paint and impurities remaining on the surfaces of the first pressing roller and the second pressing roller. After cleaning, the impurities fall into the dust collecting shell and are collected, so that the surfaces of the pressing rollers are kept clean.

[0014] The roller press for lithium battery production drives the first roller and the second roller to rotate through a driving component to roll the coated electrode. The gap between the first roller and the second roller can be adjusted to adjust the electrode rolling effect to meet production needs. The height of the cleaning structure is synchronously adjusted through the telescopic cylinder to make the scraper contact with the surface of the first roller and the second roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of a roller press for lithium battery production in this application;

[0016] Figure 2 This is a schematic diagram of the structure of the pressure roller mechanism of this application;

[0017] Figure 3 This is a schematic diagram of the structure of the cleaning structure for this application.

[0018] In the figure: 1. mounting base; 2. dust collecting box; 3. fan; 4. dust collecting pipe; 6. telescopic cylinder; 7. first pressure roller; 8. dust collecting pipe; 9. cleaning structure; 91. dust collecting shell; 92. baffle; 93. scraper; 94. sliding rod; 10. driving assembly; 11. second pressure roller; 12. connecting pipe; 13. slide groove. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0020] See also Figure 1-Figure 3 The present application provides a new technical solution: a roller press for lithium battery production, comprising: a mounting seat 1, the mounting seat 1 is provided with a roller mechanism for rolling coated pole pieces, the mounting seat 1 is U-shaped, the roller mechanism rotates inside the mounting seat 1, and cleaning structures 9 are provided on both sides of the roller mechanism for cleaning the residual paint and impurities on the roller; the roller mechanism includes at least two rollers, the two rollers are relatively parallel, and the two rollers can realize synchronous but opposite relative rotation under the action of a driving component 10; the cleaning structure 9 includes a dust collecting shell 91, a baffle 92 and a scraper 93, the dust collecting shell 91 contacts with the two rollers, and is used to scrape off the residual paint and impurities on the rollers, the residual paint and impurities scraped off the rollers slide into the baffle 92 through the dust collecting shell 91, and the scraper 93 is fixedly installed on the baffle 92 to prevent the residual paint and impurities on the rollers scraped off by the dust collecting shell 91 from causing secondary contamination to the rollers.

[0021] In some embodiments, the pressing roller mechanism includes a first pressing roller 7 and a second pressing roller 11, which are rotatably connected between the mounting seat 1, and a gap is set between the first pressing roller 7 and the second pressing roller 11; when in use, the first pressing roller 7 and the second pressing roller 11 are driven to rotate by the driving component 10 to roll the coated electrode, and the gap between the first pressing roller 7 and the second pressing roller 11 can be adjusted, and the electrode rolling effect can be adjusted to meet production needs.

[0022] In some embodiments, the inner side of the mounting seat 1 is respectively provided with a slide groove 13, and the cleaning structure 9 is slidably connected inside the slide groove 13 through sliding rods 94 fixedly installed on both sides; a telescopic cylinder 6 is provided on the sliding rod 94, and the number of the telescopic cylinders 6 is four, and the four telescopic cylinders 6 are respectively located on the upper side of the cleaning structure 9, and the telescopic cylinder 6 is used to push the sliding rod 94 to slide inside the slide groove 13, thereby driving the cleaning structure 9 to adjust according to the gap between the first pressure roller 7 and the second pressure roller 11, and the telescopic cylinder 6 is fixedly installed on the inner side of the mounting seat 1; when in use, the first pressure roller 7 and the second pressure roller 11 are rotated to roll the coating electrode between the first pressure roller 7 and the second pressure roller 11. During the rolling process, the first pressure roller 7 and the second pressure roller 11 are easily adsorbed and adhered to the paint and impurities. The first pressure roller 7 and the second pressure roller 11 rotate, and the paint and impurities remaining on the surface of the first pressure roller 7 and the second pressure roller 11 can be cleaned by the scraper 93 on the cleaning structure 9, and the impurities fall into the dust collecting shell 91 after cleaning.

[0023] In some embodiments, a collecting mechanism is fixedly installed on the left side of the mounting seat 1, and the collecting mechanism includes a dust collecting box 2 fixedly installed on the left side of the mounting seat 1 through a bracket, and a fan 3 is provided on the dust collecting box 2 for extracting the residual paint and impurities cleaned by the cleaning structure 9 into the dust collecting box 2 for collection;

[0024] The fan 3 includes an air inlet end and an air outlet end, the air inlet end is connected to a dust suction pipe 4, the air outlet end is connected to the interior of the dust collecting box 2, the end of the dust suction pipe 4 is connected to a dust collecting pipe 8, the dust collecting pipe 8 is connected to a plurality of groups of connecting pipes 12, and the ends of the connecting pipes 12 are connected to the interior of the cleaning structure 9.

[0025] When cleaning the impurities inside the cleaning structure 9, the fan 3 is started, and the impurities cleaned inside the cleaning structure 9 are transported to the inside of the dust collecting box 2 through the connecting pipe 12, the dust collecting pipe 8 and the dust suction pipe 4 by the fan 3 in sequence for collection.

[0026] Working principle: When a roller press for lithium battery production is used, first adjust the gap between the first pressing roller 7 and the second pressing roller 11 according to the pressing demand, and adjust the height of the cleaning structure 9 synchronously through the telescopic cylinder 6 so that the scraper 93 contacts the surface of the first pressing roller 7 and the second pressing roller 11, and then place the coated electrode to be rolled in the middle of the first pressing roller 7 and the second pressing roller 11, and start the driving component 10 to drive the first pressing roller 7 and the second pressing roller 11 to achieve synchronous but opposite relative rotation, so as to achieve the purpose of rolling the coated electrode. During the rolling process, the first pressing roller 7 and the second pressing roller 11 rotate, and the scraper 93 on the cleaning structure 9 can clean the paint and impurities remaining on the surface of the first pressing roller 7 and the second pressing roller 11. After cleaning, the impurities fall into the dust collecting shell 91, and the fan 3 is started. The impurities cleaned inside the cleaning structure 9 are transported to the inside of the dust collecting box 2 through the connecting pipe 12, the dust collecting pipe 8 and the dust suction pipe 4 through the fan 3 in turn. Collected.

[0027] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A roller press for lithium battery production, characterized in that: include: A mounting seat, wherein the mounting seat is provided with a roller mechanism for rolling the coated electrode piece, and cleaning structures are provided on both sides of the roller mechanism for cleaning the residual coating and impurities on the roller; The pressing roller mechanism comprises at least two pressing rollers, the two pressing rollers are arranged relatively parallel, and the two pressing rollers can realize synchronous but opposite relative rotation under the action of the driving assembly; The cleaning structure includes a dust collecting shell, a baffle and a scraper. The dust collecting shell contacts the two pressure rollers and is used to scrape off the residual paint and impurities on the pressure rollers. The residual paint and impurities scraped off the pressure rollers slide down into the baffle through the dust collecting shell. The scraper is fixedly installed on the baffle to prevent the dust collecting shell from scraping off the residual paint and impurities on the pressure rollers to cause secondary contamination to the pressure rollers.

2. A roller press for lithium battery production according to claim 1, characterized in that: The pressing roller mechanism comprises a first pressing roller and a second pressing roller, wherein the first pressing roller and the second pressing roller are rotatably connected between a mounting seat, and a gap is set between the first pressing roller and the second pressing roller.

3. A roller press for lithium battery production according to claim 1, characterized in that: Slide grooves are respectively provided on the inner sides of the mounting seats, and the cleaning structure is slidably connected inside the slide grooves via sliding rods fixedly installed on both sides.

4. A roller press for lithium battery production according to claim 3, characterized in that: The sliding rod is provided with a telescopic cylinder, which is used to push the sliding rod to slide inside the sliding groove, and the telescopic cylinder is fixedly installed on the inner side of the mounting seat.

5. A roller press for lithium battery production according to claim 1, characterized in that: A collecting mechanism is fixedly installed on the left side of the mounting seat, and the collecting mechanism includes a dust collecting box fixedly installed on the left side of the mounting seat through a bracket. The dust collecting box is provided with a fan for extracting the residual paint and impurities cleaned by the cleaning structure into the dust collecting box for collection.

6. A roller press for lithium battery production according to claim 5, characterized in that: The fan includes an air inlet end and an air outlet end, the air inlet end is connected to a dust suction pipe, the air outlet end is connected to the interior of a dust collecting box, the end of the dust suction pipe is connected to a dust collecting pipe, the dust collecting pipe is connected to a plurality of groups of connecting pipes, and the ends of the connecting pipes are connected to the interior of a cleaning structure.

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