Adjustable scraper device of roller press

By employing an adjustable scraper device on the roller press, and using a cylinder assembly to adjust the adhesion between the scraper and the roller surface, combined with a dust extraction assembly, the problem of poor scraper blade adhesion was solved, thereby achieving uniform electrode thickness and improved production efficiency.

CN224067653UActive Publication Date: 2026-03-31HEFEI GUOXUAN HIGH TECH POWER ENERGY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-04
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Traditional scraper holders cannot ensure full contact between the scraper blades and the roller surface in wide-width roller presses, resulting in frequent roller sticking and material leakage, which affects the surface quality and thickness consistency of the electrode sheets.

Method used

An adjustable scraper device is adopted, and the contact distance between the scraper frame assembly and the roller surface is adjusted by a cylinder assembly. It is also equipped with a dust collection assembly to ensure that the scraper blades are in close contact with the roller surface and reduce material residue.

Benefits of technology

It improves the thickness consistency of electrode sheets after rolling, reduces material residue, optimizes production efficiency and the environment, and extends the service life of equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an adjustable scraper device of a roller press. The adjustable scraper device comprises a side plate assembly, the scraper holder assembly is arranged on the side plate assembly; the air cylinder assembly is arranged on the side plate assembly; the dust collection assembly is arranged on the side plate assembly; the attaching distance between the scraper frame assembly and the roller surface is adjusted through the air cylinder assembly, so that the scraper frame assembly is attached to the roller surface, and the thicknesses of the rolled pole pieces are kept consistent. According to the utility model, the adjustable cylinder assembly is arranged, so that the problem of non-uniform attachment between the scraper blade and the roller caused by the traditional pushing of cylinders on two sides is solved.
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Description

Technical Field

[0001] This utility model relates to the technical field of lithium battery manufacturing equipment, and in particular to an adjustable scraper device for a roller press. Background Technology

[0002] To improve the efficiency of the rolling process, the industry has introduced wide-width rolling mills in recent years. This innovative approach aims to significantly increase production capacity and efficiency by increasing the width. However, as the width of rolling mills gradually increases, the design flaws of traditional scraper holders have become increasingly apparent. Traditional scraper holders rely primarily on the straightness accuracy of the upper and lower clamping plates to ensure the stable operation of the scraper blades, but this design proves inadequate when dealing with wide-width rolling mills. Due to the increased width, higher requirements are placed on the fit between the scraper blades and the roller surface, and traditional scraper holders cannot ensure that the blades perfectly fit the roller surface across the entire width.

[0003] This poor adhesion directly leads to frequent occurrences of roller sticking and material leakage. Roller sticking refers to material residue remaining on the roller surface due to loose adhesion between the scraper blades. This residue not only affects the normal operation of subsequent processes but may also damage the roller surface. Material leakage refers to material leaking out from the gap between the scraper blades and the roller surface during the rolling process. This not only wastes material but may also pollute the production environment.

[0004] More seriously, sticking to the rollers and material leakage can also cause problems with the surface quality of the electrode sheets and excessive thickness uniformity. As a core component of products such as lithium-ion batteries, the surface quality and thickness uniformity of the electrode sheets directly affect the product's performance and lifespan. Sticking to the rollers and material leakage caused by poor adhesion between the doctor blade and the roller surface will result in defects such as scratches and pits on the electrode sheet surface. At the same time, it will also affect the thickness uniformity of the electrode sheets, leading to excessive thickness uniformity, and thus reducing the overall quality and reliability of the product. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology. In order to achieve the above purpose, an adjustable scraper device for a roller press is adopted to solve the problems mentioned in the background technology.

[0006] An adjustable scraper device for a roller press includes:

[0007] Side panel assembly;

[0008] Scraper holder assembly installed on the side panel assembly;

[0009] The cylinder assembly is located on the side panel assembly; and

[0010] A dust collection assembly is installed on the side panel assembly;

[0011] The contact distance between the scraper frame assembly and the roller surface is adjusted by the cylinder assembly, so that the scraper frame assembly is in contact with the roller surface, and the thickness of the electrode sheet is kept consistent after rolling.

[0012] As a further embodiment of this utility model: the side plate assembly includes a first side plate, a second side plate disposed on the first side plate, a scraper holder bearing seat disposed on the second side plate, a scraper adjustment seat disposed on the second side plate, a dust collection component slide rail disposed on the second side plate, a dust collection component fixing plate disposed on the second side plate, an adjustment seat disposed on the second side plate, and a scraper holder limiting device. This design makes the side plate assembly structure more compact and functionally complete, improving the overall stability and ease of operation of the scraper device.

[0013] As a further embodiment of this invention: the scraper holder assembly includes an upper blade clamping plate, a lower blade clamping plate disposed on the upper blade clamping plate, a cylinder top plate disposed on the lower blade clamping plate, a rotary bearing disposed between the upper and lower blade clamping plates, a handle disposed on the upper and lower blade clamping plates, and a scraper blade disposed at the clamping end between the upper and lower blade clamping plates. This design facilitates the installation, adjustment, and maintenance of the scraper blade, and improves the flexibility and durability of the scraper assembly.

[0014] As a further aspect of this invention, the handle is connected to a rotary bearing for flipping. This design allows users to easily flip the scraper holder assembly, facilitating operation at different angles and improving ease of use and efficiency.

[0015] As a further aspect of this invention: the cylinder assembly includes a cylinder mounting bracket, an adjustable cylinder mounted on the cylinder mounting bracket, and a connecting plate located at the end of the cylinder mounting bracket. By driving the adjustable cylinder to act on the top plate of the cylinder, the pressure of the scraper blade against the roller surface is adjusted. This design can precisely control the pressure of the scraper blade, ensuring a stable scraping effect under different working conditions and extending the service life of the equipment.

[0016] As a further aspect of this invention, the scraper device also includes a dust collection component, which employs a dust collection brush or nozzle to collect the scraped material close to the roller surface. The addition of the dust collection component effectively reduces material residue and airborne particles, improves the working environment, and simultaneously increases the material recycling rate.

[0017] As a further aspect of this invention, the scraper device also includes a dust collection trough, which is detachable for cleaning the collected material. The detachable dust collection trough design facilitates regular material cleaning by the user, maintaining the cleanliness and efficient operation of the scraper device, and improving the ease of equipment maintenance.

[0018] Compared with the prior art, the present invention has the following technical advantages:

[0019] The above technical solution utilizes an integrated scraper device, including a side plate assembly, a scraper holder assembly, a cylinder assembly, and a dust collection assembly. The cylinder assembly precisely adjusts the contact distance between the scraper holder assembly and the roller surface, ensuring the scraper blades are tightly fitted to the roller surface, thus effectively maintaining the uniformity of electrode thickness after rolling. This design not only improves production efficiency and product quality but also effectively reduces material residue and optimizes the working environment through the dust collection assembly. Attached Figure Description

[0020] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings:

[0021] Figure 1 A schematic diagram of the adjustable scraper device provided in this utility model application;

[0022] Figure 1 In the middle, 310, side panel assembly; 320, scraper holder assembly; 330, cylinder assembly; 340, dust collection assembly; 350, dust collection tray.

[0023] Figure 2 A schematic diagram of the side panel assembly provided in this utility model application;

[0024] Figure 2 In the middle, 311, first side plate; 312, second side plate; 313, scraper holder bearing seat; 314, scraper adjusting seat; 315, dust collection component slide rail; 316, dust collection component fixing plate; 317, adjusting seat; 318, scraper holder limiting device.

[0025] Figure 3 This is a schematic diagram of the scraper holder assembly provided by the utility model of this application;

[0026] Figure 3 In the middle, 321, upper clamping plate of the blade; 322, lower clamping plate of the blade; 323, cylinder top plate; 324, rotary bearing; 325, handle; 326, scraper blade.

[0027] Figure 4 A schematic diagram of the cylinder assembly provided in this utility model application;

[0028] Figure 4 In the middle, 331 is the connecting plate; 332 is the adjustable cylinder; and 333 is the cylinder mounting bracket.

[0029] Figure 5 This is a schematic diagram of the installation structure provided by the utility model of this application;

[0030] Figure 5In the middle, 100 is the stretching mechanism; 101 is the guide roller; 102 is the drive roller; 103 is the glue pressing roller; 104 is the swing roller; 105 is the tension roller; 200 is the roller pressing mechanism; 201 is the feeding roller; 202 is the upper main roller; 203 is the lower main roller; 204 is the output roller; and 300 is the adjustable scraper device. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please refer to Figure 1 In this embodiment of the present invention, an adjustable scraper device for a roller press includes:

[0033] Side panel assembly 310;

[0034] Scraper holder assembly 320 is disposed on side plate assembly 310;

[0035] The cylinder assembly 330 is disposed on the side plate assembly 310; and

[0036] A dust collection assembly 340 is disposed on the side panel assembly 310;

[0037] The contact distance between the scraper holder assembly 320 and the roller surface is adjusted by the cylinder assembly 330, so that the scraper holder assembly 320 is in contact with the roller surface, and the thickness of the electrode sheet is kept consistent after rolling.

[0038] In this embodiment, as Figure 2 As shown in the figure, the side panel assembly 310 includes a first side panel 311, a second side panel 312 disposed on the first side panel 311, a scraper holder bearing seat 313 disposed on the second side panel 312, a scraper adjustment seat 314 disposed on the second side panel 312, a dust collection component slide rail 315 disposed on the second side panel 312, a dust collection component fixing plate 316 disposed on the second side panel 312, an adjustment seat 317 disposed on the second side panel 312, and a scraper holder limiting device 318.

[0039] In this embodiment, as Figure 3As shown in the figure, the scraper holder assembly 320 includes an upper blade clamping plate 321, a lower blade clamping plate 322 disposed on the upper blade clamping plate 321, a cylinder top plate 323 disposed on the lower blade clamping plate 322, a rotary bearing 324 disposed between the upper blade clamping plate 321 and the lower blade clamping plate 322, a handle 325 disposed on the upper blade clamping plate 321 and the lower blade clamping plate 322, and a scraper blade 326 disposed at the clamping end between the upper blade clamping plate 321 and the lower blade clamping plate 322.

[0040] In this embodiment, the handle 325 is connected to the rotary bearing 324 and is used for flipping.

[0041] In this embodiment, as Figure 4 As shown in the figure, the cylinder frame assembly 330 includes a cylinder mounting bracket 333, an adjustable cylinder 332 disposed on the cylinder mounting bracket 333, and a connecting plate 331 disposed at the end of the cylinder mounting bracket 333. By driving the adjustable cylinder 332 to act on the cylinder top plate 323, the pressure of the scraper blade 326 against the roller surface is adjusted.

[0042] In this embodiment, the scraper device also includes a dust collection component 340, which uses a dust collection brush or a dust collection nozzle to collect the scraped material in close contact with the roller surface.

[0043] In this embodiment, the scraper device also includes a dust collection trough 350, which has a detachable structure and is used to clean the collected material.

[0044] In this embodiment, as Figure 5 As shown, the diagram is a schematic diagram of the installation structure of the adjustable scraper device 300;

[0045] In the figure, the electrode sheet movement direction stretching mechanism 100 forms a tension interruption through the speed difference generated by the through roller 101, drive roller 102, rubber pressure roller 103 and upper main roller 202 and lower main roller 203. The tension is sensed by the tension roller 105 and then stabilized by the swing roller 104.

[0046] In this embodiment, the rolling mechanism 200 includes a feeding roller 201, an upper main roller 202, a lower main roller 203, and an output roller 204. The lower main roller 203 is located below the upper main roller 202, and the upper main roller 202 is located above the lower main roller 203. The electrode sheet is fed in by the feeding roller 201, and the upper main roller 202 cooperates with the lower main roller 203 to roll the electrode sheet. After rolling, the electrode sheet powder will stick to the roller surfaces of the upper main roller 202 and the lower main roller 203, and then the output roller 204 is used to output the electrode sheet.

[0047] The scraper assembly 320 is finely adjusted by the rear cylinder assembly 330 and the adjustable cylinder 332 to achieve perfect fit between the scraper blade 326 and the upper roller 202 and the lower roller 203, thereby scraping off dust particles from the rollers.

[0048] The vacuuming assembly 340 can be adjusted to the optimal vacuuming position via the vacuuming assembly slide rail 315, and then fixed by the vacuuming assembly fixing plate 316.

[0049] The dust collection tray 350 is connected to the dust collection assembly 340 and moves with it.

[0050] In this embodiment, the number of adjustable cylinders 332 increases with the increase of the machine width. All adjustable cylinders 332 are finely adjusted by a precision pressure regulating valve. After adjustment, the pressure value is recorded and the parameters are solidified.

[0051] Working process: Adjustable cylinder 332 is initially in the retracted state. After the scraper blade 326 is installed, the scraper holder assembly 320 rotates back to its original position. When the equipment is working, adjustable cylinder 332 extends, making the scraper blade 326 closely adhere to the main roller of the equipment. At this time, the dust collection device is simultaneously activated, and the equipment begins operation. When it is necessary to stop the machine or replace the scraper blade 326, adjustable cylinder 332 retracts. At this time, the scraper blade 326 can be replaced by rotating the scraper holder assembly 320 using handle 325. After the adjustable cylinder 332 extends, the contact between the scraper blade 326 and the roller surface is continuously tested and adjusted to find the optimal pressure value, ensuring the best dust removal effect.

[0052] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0053] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A calender adjustable doctor device characterized by, The invention relates to a scraping device for collecting material on a roller surface, comprising: a side plate assembly (310); a scraper holder assembly (320) arranged on the side plate assembly; a cylinder assembly (330) arranged on the side plate assembly; and a dust collection assembly (340) arranged on the side plate assembly; the distance between the scraper holder assembly (320) and the roller surface is adjusted by the cylinder assembly (330) so that the scraper holder assembly is attached to the roller surface and the thickness of the polar piece after being pressed is uniform.

2. An adjustable doctor blade device for a roll press as claimed in claim 1, wherein The side plate assembly comprises a first side plate (311), a second side plate (312) arranged on the first side plate, a scraper holder bearing seat (313) arranged on the second side plate, a scraper adjusting seat (314) arranged on the second side plate, a dust collection assembly sliding rail (315) arranged on the second side plate, a dust collection assembly fixing plate (316) arranged on the second side plate, an adjusting seat (317) arranged on the second side plate, and a scraper holder limiting device (318).

3. An adjustable doctor blade assembly for a roll press as defined in claim 1, wherein, The scraper holder assembly comprises an upper blade clamping plate (321), a lower blade clamping plate (322) arranged on the upper blade clamping plate, a cylinder top plate (323) arranged on the lower blade clamping plate, a rotating bearing (324) arranged between the upper blade clamping plate and the lower blade clamping plate, a handle (325) arranged on the upper blade clamping plate and the lower blade clamping plate, and a scraper blade (326) arranged between the clamping ends of the upper blade clamping plate and the lower blade clamping plate.

4. An adjustable doctor device for a roll press as defined in claim 3, wherein The handle (325) is connected to the rotating bearing (324) and used for turning over.

5. The adjustable doctor device for a roll press according to claim 3, wherein The cylinder assembly (330) comprises a cylinder mounting frame (333), an adjustable cylinder (332) arranged on the cylinder mounting frame, and a connecting plate (331) arranged at the end of the cylinder mounting frame, the adjustable cylinder acts on the cylinder top plate (323) to adjust the pressure of the scraper blade (326) attached to the roller surface.

6. An adjustable doctor blade assembly for a roll press as defined in claim 1, wherein, The scraping device further comprises a dust collection assembly (340) which adopts a dust collection brush or a dust collection nozzle to collect the scraped material closely attached to the roller surface.

7. The adjustable doctor device for a roll press according to claim 1, wherein The scraping device further comprises a dust collection groove (350) which adopts a detachable structure to clean the collected material.