Roller scraping mechanism of lithium battery pole piece double-roller machine

By installing adjustment components and springs on the lithium battery electrode roller mill, flexible contact between the scraper and the pressure roller is achieved, solving the problem of roller damage caused by hard contact between the scraper and the pressure roller, extending equipment life and improving production stability.

CN223934233UActive Publication Date: 2026-02-24YUNNAN LUFEI NEW ENERGY MATERIALS CO LTD
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Patent Information

Application Number
CN202520197265.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-08
Publication Date
2026-02-24
Estimated Expiration
2035-02-08

AI Technical Summary

Technical Problem

The fixed installation of the scraper on the lithium battery electrode roller mill makes it impossible to adjust the distance between the scraper and the pressure roller. The hard contact can easily damage the roller and shorten the life of the equipment.

Method used

The scraper is mounted on the rotating shaft using an adjustment component, and a spring is used to achieve flexible contact between the scraper and the pressure roller. The distance can be precisely adjusted by the adjustment component and scale, and the spring buffers the impact of large impurities or unevenness.

Benefits of technology

It extends the service life of the equipment, reduces maintenance costs, improves production stability and equipment operation reliability, and ensures the smoothness of the electrode surface.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a roller scraping mechanism of a lithium battery pole piece roller machine, and belongs to the technical field of lithium battery processing. The device mainly comprises a connecting plate, a rotating shaft, an adjusting assembly, a scraper, a connecting block, a connecting rod, a pressing rod and a spring. The scraper is mounted on the rotating shaft through the adjusting component, so that the distance between the scraper and the compression roller can be adjusted according to different specifications of the compression roller, the adaptability of the scraping roller mechanism to different production requirements is improved, the scraper is not in hard contact with the compression roller, and the scraping roller mechanism is convenient to use. The scraper and the compression roller are kept in flexible contact through the elastic force of the spring, so that the contact between the scraper and the compression roller is more flexible, and when larger impurities are encountered or the surface is uneven, the spring can play a role in buffering, so that the hard collision between the scraper and the compression roller is effectively avoided, the risk of damage to a rolling shaft is reduced, and the service life of the double-roller machine is prolonged.
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Description

Technical Field

[0001] This utility model belongs to the field of lithium battery processing technology, specifically relating to a scraper mechanism for a lithium battery electrode rolling mill. Background Technology

[0002] The production process of lithium batteries uses a lot of mechanical equipment, one of which is the roller mill. The roller mill is mainly used to extrude the lithium battery electrode to a certain thickness while ensuring the smoothness of the lithium battery electrode surface.

[0003] Currently, lithium battery electrode roller mills mainly use a scraper method, with the scraper fixed in place. The distance between the scraper and the pressure roller cannot be adjusted according to different specifications of the pressure roller. Although this method can remove dust and residue, the hard contact between the scraper and the pressure roller can easily cause damage to the roller, resulting in a shortened service life of the roller mill. Utility Model Content

[0004] To overcome the problems of fixed-mount scrapers in current lithium battery electrode rollers, which prevent adjustment of the distance between the scraper and pressure roller according to different specifications, and the rigid contact between the scraper and pressure roller easily causing roller damage and shortening the service life of the roller mill, this utility model provides a scraper mechanism for a lithium battery electrode roller mill. In this utility model, the scraper is mounted on a rotating shaft through an adjustment component, allowing the distance between the scraper and pressure roller to be adjusted according to different pressure roller specifications. When encountering large impurities or uneven surfaces, the spring can act as a buffer, effectively avoiding hard collisions between the scraper and pressure roller, reducing the risk of roller damage, and extending the service life of the roller mill.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: A scraper mechanism for a lithium battery electrode rolling mill mainly includes a connecting plate, a rotating shaft, an adjusting assembly, a scraper, a connecting block, a connecting rod, a pressure rod, and a spring. The connecting plate is provided with a connecting hole for easy installation. The rotating shaft is rotatably mounted on the connecting plate. Two sets of adjusting assemblies are mounted on the rotating shaft and located between the two connecting plates. The scraper is mounted on the adjusting assembly. The connecting block is mounted on the connecting plate. The connecting rod is mounted on the bottom end of the connecting block. A limit nut is provided at the bottom end of the connecting rod. One end of the pressure rod is fixedly mounted on the rotating shaft, and the other end is slidably mounted on the connecting rod. The spring is mounted on the connecting rod, with its top end abutting against the pressure rod and its bottom end abutting against the limit nut.

[0006] The adjustment assembly for adjusting the distance between the scraper and the pressure roller includes an adjustment seat, a slider, a screw, and a scale. The adjustment seat is mounted on a rotating shaft and has a groove. The slider is slidably mounted inside the groove. The screw passes through the slider and is rotatably mounted on the adjustment seat. The scale is mounted on the adjustment seat.

[0007] The scraper is detachably mounted on the slider, and the scraper is designed with an arc-shaped structure.

[0008] The pressure rod includes a ring, a connecting rod, and a waist-shaped block. The ring is mounted on the rotating shaft by fastening bolts. The connecting rod and the waist-shaped block are mounted on the ring. The waist-shaped block has a waist-shaped groove, and the connecting rod passes through the waist-shaped groove.

[0009] The beneficial effects of this utility model are:

[0010] In this invention, the scraper is mounted on the rotating shaft via an adjustment component, allowing the distance between the scraper and the pressure roller to be adjusted according to different pressure roller specifications. This improves the adaptability of the scraper mechanism to different production needs. The scraper and pressure roller do not have a rigid contact; instead, the elastic force of the spring maintains a flexible contact, making the contact between the scraper and the pressure roller more flexible. When encountering large impurities or uneven surfaces, the spring can act as a buffer, effectively avoiding hard collisions between the scraper and the pressure roller, reducing the risk of roller damage, extending the service life of the roller mill, reducing the need for frequent repairs or replacements due to roller damage, lowering the maintenance costs of production equipment, and improving the stability and reliability of equipment operation during lithium battery production. Attached Figure Description

[0011] Figure 1 This is an isometric schematic diagram of the present invention.

[0012] Figure 2 This is a three-dimensional schematic diagram of the present invention.

[0013] Figure 3 This is a top view of the structure of this utility model.

[0014] Figure 4 This is a schematic diagram of the structure of this utility model viewed from below. Detailed Implementation

[0015] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, so as to facilitate the understanding of those skilled in the art.

[0016] This utility model discloses a scraper mechanism for a lithium battery electrode rolling mill. The scraper mechanism mainly includes a connecting plate 1, a rotating shaft 2, an adjusting component 3, a scraper 4, a connecting block 5, a connecting rod 6, a pressure rod 7, and a spring 8. The connecting plate 1 has a connecting hole 11 for easy installation. The rotating shaft 2 is rotatably mounted on the connecting plate 1. Two sets of adjusting components 3 are mounted on the rotating shaft 2 and located between the two connecting plates 1. The scraper 4 is mounted on the adjusting component 3. The connecting block 5 is mounted on the connecting plate 1. The connecting rod 6 is mounted on the bottom end of the connecting block 5 and a limit nut 61 is provided at the bottom end of the connecting rod 6. One end of the pressure rod 7 is fixedly mounted on the rotating shaft 2, and the other end is slidably mounted on the connecting rod 6. The spring 8 is mounted on the connecting rod 6, with its top end abutting against the pressure rod 7 and its bottom end abutting against the limit nut 61.

[0017] like Figure 2 , Figure 3 , Figure 4 As shown, the adjustment assembly 3 for adjusting the distance between the scraper 4 and the pressure roller includes an adjustment seat 31, a slider 32, a screw 33, and a scale 34. The adjustment seat 31 is mounted on the rotating shaft 2, and a groove 311 is provided on the adjustment seat 31. The slider 32 is slidably mounted inside the groove 311. The screw 33 passes through the slider 32 and is rotatably mounted on the adjustment seat 31. The scale 34 is mounted on the adjustment seat 31. When adjusting the distance between the scraper 4 and the pressure roller, the screw 33 is rotated to control the sliding of the slider 32. The distance value can be accurately controlled by reading the scale 34, which greatly improves the accuracy of adjustment and ensures that the scraper 4 and the pressure roller maintain the optimal working distance, which is beneficial to improving the processing effect of lithium battery electrodes.

[0018] like Figure 2 , Figure 3 , Figure 4 As shown, the scraper 4 is detachably mounted on the slider 32, and the scraper 4 is designed with an arc-shaped structure. In traditional fixed scraper 4 structures, if the scraper 4 is damaged, the repair or replacement process is often complex and time-consuming. However, this mechanism only requires removing the old scraper 4 from the slider 32 and installing the new scraper 4, which is simple and quick to operate, reduces equipment maintenance time, and improves production efficiency. The arc-shaped structure of the scraper 4 allows it to better conform to the arc shape of the pressure roller when scraping off dust and residue from the surface of the pressure roller. This enables more comprehensive and thorough removal of impurities from the surface of the pressure roller, thereby more effectively ensuring the surface quality of the lithium battery electrode and improving the smoothness of the electrode.

[0019] like Figure 2 , Figure 4As shown, the pressure rod 7 includes a ring 71, a connecting rod 72, and a waist-shaped block 73. The ring 71 is mounted on the rotating shaft 2 by fastening bolts. The connecting rod 72 and the waist-shaped block 73 are mounted on the ring 71. The waist-shaped block 73 has a waist-shaped groove 731, and the connecting rod 6 passes through the waist-shaped groove 731. When there is a large pressure impact between the scraper 4 and the pressure roller (for example, when there are large particles of impurities on the surface of the pressure roller), the spring 8 can buffer the pressure from the scraper 4, avoid hard collision between the scraper 4 and the pressure roller, prevent damage to the pressure roller, and extend the service life of the pressure roller.

[0020] Work process:

[0021] First, the entire scraper mechanism is installed in a suitable position on the lithium battery electrode rolling mill through the connecting hole 11 on the connecting plate 1. Due to the presence of the connecting hole 11, the installation process is relatively convenient, allowing for accurate positioning of the scraper mechanism at the desired scraping position. When it is necessary to adjust the distance between the scraper 4 and the pressure roller, the adjusting component 3 is used. By rotating the screw 33, the rotation of the screw 33 causes the slider 32 to slide in the groove 311. During this process, the scale 34 installed on the adjusting seat 31 can be used as a reference to accurately determine the distance the scraper 4 moves. Based on the specifications of the pressure roller and production requirements, a reasonable initial distance between the scraper 4 and the pressure roller is set. During the operation of the rolling mill, if the pressure roller experiences any slight displacement or surface unevenness that causes pressure on the scraper 4, the rotating shaft 2, along with the pressure rod 7... The scraper will rotate under pressure because the spring 8 is mounted on the connecting rod 6, with its top end abutting against the pressure rod 7 and its bottom end abutting against the limiting nut 61 at the bottom of the connecting rod 6. Therefore, the spring 8 will be compressed or stretched, so that the scraper 4 and the pressure roller maintain an elastic contact. The elastic force of the spring 8 will keep the scraper 4 in contact with the pressure roller, thereby scraping off the dust and residue on the surface of the pressure roller, avoiding hard collisions, and effectively protecting the surface of the pressure roller. As the roller mill runs, because the scraper 4 is at an appropriate distance from the pressure roller and maintains elastic contact, the scraper 4 will scrape off the dust and residue on the surface of the pressure roller. The arc-shaped structure of the scraper 4 helps to better fit the surface of the pressure roller, ensuring a uniform scraping effect, ensuring the comprehensiveness and effectiveness of scraping, and thus ensuring that the smoothness of the lithium battery electrode surface meets the production standards.

[0022] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.

Claims

1. A scraper mechanism for a lithium battery electrode rolling mill, characterized in that: The scraper mechanism of the lithium battery electrode roller mill includes a connecting plate (1), a rotating shaft (2), an adjusting component (3), a scraper (4), a connecting block (5), a connecting rod (6), a pressure rod (7), and a spring (8). The connecting plate (1) has a connecting hole (11) for easy installation. The rotating shaft (2) is rotatably mounted on the connecting plate (1). Two sets of adjusting components (3) are mounted on the rotating shaft (2) and located between the two connecting plates (1). The scraper (4) is mounted on the adjusting component (3). The connecting block (5) is mounted on the connecting plate (1). The connecting rod (6) is mounted on the bottom end of the connecting block (5). A limit nut (61) is provided at the bottom end of the connecting rod (6). One end of the pressure rod (7) is fixedly mounted on the rotating shaft (2), and the other end is slidably mounted on the connecting rod (6). The spring (8) is mounted on the connecting rod (6), with its top end abutting against the pressure rod (7) and its bottom end abutting against the limit nut (61).

2. The scraper mechanism of a lithium battery electrode rolling mill as described in claim 1, characterized in that: The adjustment assembly (3) used to adjust the distance between the scraper (4) and the pressure roller includes an adjustment seat (31), a slider (32), a screw (33), and a scale (34). The adjustment seat (31) is mounted on the rotating shaft (2). A groove (311) is provided on the adjustment seat (31). The slider (32) is slidably mounted inside the groove (311). The screw (33) passes through the slider (32) and is rotatably mounted on the adjustment seat (31). The scale (34) is mounted on the adjustment seat (31).

3. The scraper mechanism of a lithium battery electrode rolling mill as described in claim 2, characterized in that: The scraper (4) is detachably mounted on the slider (32), and the scraper (4) is configured as an arc-shaped structure.

4. The scraper mechanism of a lithium battery electrode rolling mill as described in claim 1 or 2, characterized in that: The pressure rod (7) includes a ring (71), a connecting rod (72), and a waist-shaped block (73). The ring (71) is mounted on the rotating shaft (2) by fastening bolts. The connecting rod (72) and the waist-shaped block (73) are mounted on the ring (71). A waist-shaped groove (731) is provided on the waist-shaped block (73), and the connecting rod (6) passes through the waist-shaped groove (731).