A clamping device

Abstract

This utility model discloses a clamping device, relating to the technical field of battery rolling equipment. The clamping device, used to clamp a scraper, includes: a scraper holder; a scraper mounted on the scraper holder; a pressure plate, one end of which abuts against the scraper, and the other end of which is rotatably connected to the scraper holder; and a clamping structure mounted on the pressure plate for adjusting the pressure applied by the pressure plate to the scraper. This device employs a mechanical clamping structure using an L-shaped pressure plate and a wing nut with a bolt. The pressure applied by the pressure plate to the scraper can be easily adjusted by manually rotating the wing nut, without relying on a complex pneumatic or hydraulic system.

Description

Technical Field

[0001] This utility model belongs to the technical field of battery rolling equipment, specifically relating to a pressing device. Background Technology

[0002] In the continuous production of lithium battery electrodes and films, the rolling process is one of the key steps, and its quality directly affects the thickness uniformity, surface smoothness, and subsequent processing performance of the product. The doctor blade, as an important component of the rolling equipment, is mainly used to remove material adhering to the roller surface or control the coating thickness. The degree of adhesion between the doctor blade and the roller surface directly determines the scraping effect and product quality.

[0003] In existing technologies, to improve the adhesion between the doctor blade and the roller surface, pneumatic, hydraulic, or spring-driven pressure control devices are often used to apply clamping force to the doctor blade. However, these auxiliary clamping structures generally suffer from problems such as complex structure, high cost, and insufficient adjustment precision. Especially during actual operation, due to the inherent toughness of the doctor blade, it is prone to unexpected elastic deformation under pneumatic propulsion or spring clamping, resulting in an inability to achieve uniform and tight adhesion between it and the roller surface. More seriously, when there is a certain angle between the direction of force on the doctor blade and the roller surface, the clamping force cannot be effectively applied to the contact area due to force decomposition, instead exacerbating the bending deformation of the doctor blade in the opposite direction along the roller surface. In this case, simply increasing the air pressure or spring preload not only fails to improve the adhesion effect but may also accelerate doctor blade wear or even lead to breakage.

[0004] Furthermore, existing devices lack the ability to make localized fine adjustments to the scraper, making it difficult to adapt to the deformation compensation needs caused by wear during long-term use. Once the scraper experiences slight wear or warping, traditional clamping mechanisms often cannot dynamically adjust the distribution of clamping force, leading to problems such as uneven scraping, missed scraping, or over-scraping, which in turn affects production efficiency and product consistency.

[0005] Therefore, there is an urgent need for a clamping device that is simple in structure, low in cost, flexible in adjustment, and can effectively adapt to the deformation characteristics of the scraper, so as to ensure good contact between the scraper and the roller surface, extend the service life of the scraper, and improve the stability and reliability of the rolling process. Utility Model Content

[0006] The purpose of this invention is to address the aforementioned problems in the existing technology by proposing a clamping device.

[0007] The objective of this utility model can be achieved through the following technical solution: a clamping device for clamping a scraper, comprising:

[0008] Scraper holder;

[0009] A scraper, the scraper being mounted on the scraper holder;

[0010] A pressure plate, one end of which abuts against the scraper, and the other end of which is rotatably connected to the scraper holder;

[0011] A clamping structure is provided on the pressure plate and is used to adjust the pressure applied by the pressure plate to the scraper.

[0012] As a further improvement of this utility model, a gasket is also included, which is disposed between the scraper and the pressure plate, and the pressure plate abuts against the scraper through the gasket.

[0013] As a further improvement of this utility model, the clamping structure includes a bolt, which passes through the pressure plate, and the shank of the bolt passes through the pressure plate and is threadedly connected to the scraper frame.

[0014] As a further improvement of this utility model, the clamping structure also includes a nut, which is sleeved on the bolt and positioned between the head of the bolt and the pressure plate.

[0015] As a further improvement of this utility model, the nut is configured as a wing nut.

[0016] As a further improvement of this utility model, the pressure plate is configured as L-shaped, and the pressure plate includes a first plate and a second plate connected to each other, the length of the second plate is greater than the length of the first plate, and the pressing structure is disposed on the second plate.

[0017] As a further improvement of this utility model, the scraper holder is provided with a clamping part, and at least a portion of both the scraper and the gasket are disposed in the clamping part.

[0018] As a further improvement of this utility model, the clamping part includes a first clamping plate and a second clamping plate, the first clamping plate and the second clamping plate are respectively disposed on both sides of the scraper and the gasket, and the first clamping plate abuts against the pressing structure.

[0019] As a further improvement of this utility model, a fixed bracket is provided on the scraper holder, and the pressure plate is rotatably connected to the fixed bracket.

[0020] As a further improvement of this utility model, the fixing bracket is configured as a triangle, with the longest side of the fixing bracket located on the scraper holder.

[0021] Based on the above technical solution, this utility model can produce at least the following technical effects:

[0022] 1. This device adopts a mechanical clamping structure with an L-shaped pressure plate and a wing nut and bolts. The pressure applied by the pressure plate to the scraper can be easily adjusted by manually rotating the wing nut, without relying on a complex pneumatic or hydraulic system. This design not only reduces equipment costs and maintenance difficulty, but also allows for precise control of the scraper clamping force according to actual working conditions, ensuring that the scraper always maintains good contact with the roller surface during operation, significantly improving scraping uniformity and process stability.

[0023] 2. A shim is placed between the scraper and the pressure plate. On the one hand, it can absorb local stress concentration during the pressing process and avoid scraper damage caused by rigid contact. On the other hand, when the scraper undergoes slight wear or elastic deformation due to long-term use, the shim can provide appropriate flexible support, so that the scraper can produce controllable micro-deformation under the pressing action, and re-fit against the roller surface, thereby effectively compensating for wear gaps, extending the service life of the scraper, and reducing the frequency of consumable replacement and production costs.

[0024] 3. This device uses a lever-type pressure plate and a rotating fixed bracket to form a manual clamping mechanism, which simulates the operation logic of traditional manual knife clamping. This allows operators to fine-tune the clamping force in real time according to the actual situation on site, significantly enhancing the device's adaptability to different working conditions and scraper states. Attached Figure Description

[0025] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the pressing device of this utility model.

[0027] Figure 2 This is a schematic diagram of the pressing device of this utility model in use.

[0028] Figure 3 yes Figure 1 A magnified view of a portion of the image.

[0029] In the diagram, 100 is the roller surface; 200 is the clamping device; 210 is the gasket; 220 is the pressure plate; 221 is the first plate; 222 is the second plate; 230 is the nut; 240 is the bolt; 241 is the rod; 242 is the head; 250 is the rotating shaft; 260 is the scraper holder; 261 is the fixed bracket; 262 is the first clamping plate; 263 is the second clamping plate; 264 is the accommodating space; and 300 is the scraper. Detailed Implementation

[0030] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this utility model are only used to explain the relative positional relationship and movement of the components in a specific posture (as shown in the attached figure). If the specific posture changes, the directional indication will also change accordingly. Furthermore, in this utility model, descriptions involving "first," "second," "a," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly defined. In this utility model, unless otherwise explicitly specified and defined, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two components or the interaction between two components, unless otherwise explicitly defined. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances. Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope claimed by this utility model.

[0031] The following are specific embodiments of this utility model, in conjunction with the accompanying drawings. Figure 1-3 The technical solution of this utility model will be further described below, but this utility model is not limited to the following embodiments.

[0032] This utility model provides a roller-pressing doctor blade 300 pressing device 200, mainly including a doctor blade holder 260, a doctor blade 300, a pressure plate 220, a pressing structure, a gasket 210, a fixed bracket 261, and a rotating shaft 250, among other core components. The overall structure is compact and easy to install, suitable for various continuous production scenarios such as lithium battery electrode rolling and thin film coating where high pressing performance of the doctor blade 300 is required.

[0033] The scraper holder 260, serving as the basic support structure of the entire device, is typically made of high-strength metal, possessing excellent rigidity and corrosion resistance. The scraper holder 260 is equipped with a clamping portion for holding the scraper 300, comprising a first clamping plate 262 and a second clamping plate 263, forming a narrow, elongated receiving space 264 between them. The scraper 300 and the gasket 210 are stacked sequentially and inserted into this receiving space. The scraper 300 is typically made of high-hardness, high-wear-resistant polyurethane, ceramic, or special alloy materials to meet the scraping requirements of different materials; while the gasket 210 is preferably made of nylon, possessing a certain degree of elasticity and self-lubricating properties. The gasket 210 not only buffers the impact force generated during the clamping process but also provides flexible support when the scraper 300 undergoes minor deformation, preventing the scraper 300 from breaking or its edges from warping due to localized stress concentration.

[0034] The pressure plate 220 is designed with an L-shaped structure, comprising a first plate 221 and a second plate 222 perpendicularly connected to each other. The first plate 221 is shorter and abuts against the scraper 300 (via the gasket 210); the second plate 222 is longer and acts as a lever arm, with through holes for mounting the clamping structure. The L-shaped pressure plate 220 design fully utilizes the lever principle, generating a large clamping force at the scraper 300 end with a relatively small adjustment force, thus achieving an efficient and labor-saving clamping effect. One end of the pressure plate 220 is in direct contact with the gasket 210 on the scraper 300, and the other end is rotatably connected to the fixed bracket 261 via a pivot 250. The fixed bracket 261 is welded or screwed onto the scraper holder 260, and its overall structure is triangular, with the longest side firmly fixed to the surface of the scraper holder 260 to ensure structural stability. The triangular bracket not only has excellent mechanical strength, but also effectively disperses the reaction force transmitted by the pressure plate 220, preventing the scraper holder 260 from deforming or loosening during long-term use.

[0035] The clamping structure is the core component of this device to achieve adjustable pressure, mainly including a bolt 240 and a nut 230. The shank 241 of the bolt 240 passes through a through hole in the second plate 222 of the pressure plate 220 and is threaded into a pre-drilled threaded hole on the scraper holder 260. The nut 230 is fitted onto the shank 241 between the head 242 of the bolt 240 and the pressure plate 220. The nut 230 is preferably a wing nut. Because the wing nut has a large flange that facilitates manual rotation, the operator can quickly tighten or loosen the nut 230 without tools, thereby changing the rotation angle of the pressure plate 220 around the shaft 250, and thus adjusting the pressure applied to the scraper 300. When the nut 230 is tightened, the pressure plate 220 rotates downward around the shaft 250, and the first plate 221 presses against the washer 210, so that the scraper 300 is firmly pressed between the first clamping plate 262 and the second clamping plate 263; conversely, when the nut 230 is loosened, the pressure plate 220 rebounds under the elasticity of the scraper 300 itself or the action of gravity, releasing the clamping force, which facilitates the replacement or maintenance of the scraper 300.

[0036] Before operation, operators can manually adjust the tightness of nut 230 according to process requirements. Initially, bolt 240 can be tightened slightly to initially fix the scraper 300; then, by finely rotating nut 230, the pressure of pressure plate 220 on scraper 300 is adjusted until scraper 300 and roller surface 100 achieve uniform and tight contact. Because this device uses a mechanical manual adjustment method, the clamping force can be precisely controlled, avoiding poor contact problems caused by pressure fluctuations or response delays in the pneumatic system. More importantly, when scraper 300 experiences slight wear or localized warping during long-term use, operators only need to slightly tighten nut 230 to induce a controllable micro-deformation of scraper 300 under the buffering effect of gasket 210, allowing it to re-adhere to roller surface 100, thereby effectively extending the service life of scraper 300 and reducing downtime for replacement.

[0037] Furthermore, the modular design of this device greatly enhances maintenance convenience. When the scraper 300 wears to its limit and needs to be replaced, simply loosen the nut 230 and lift the pressure plate 220 to quickly remove the old scraper 300 and install the new part. The entire process does not require disassembling the entire scraper holder 260 or adjusting other parts, significantly improving equipment availability and production efficiency.

[0038] It is worth emphasizing that this utility model fully considers the elastic properties of the scraper 300 material itself, abandons the traditional design concept, and through the synergistic effect of the gasket 210 and the adjustable pressure plate 220, it gives the scraper 300 a certain degree of self-adaptation while ensuring the clamping effect. This design not only solves the problem of adhesion failure caused by the deformation of the scraper 300 in the prior art, but also avoids blade breakage or roller surface 100 damage caused by excessive clamping, thus achieving multiple optimizations in scraper 300 life, scraping effect and equipment safety.

[0039] In summary, the roller-pressed scraper 300 pressing device 200 of this utility model has a reasonable structure, low cost, flexible adjustment, and convenient maintenance. It can effectively solve the problems of insufficient fit, complex structure, difficult control, and easy damage of the scraper 300 existing in the prior art. Through the organic combination of mechanical lever principle and flexible buffer material, it achieves precise and dynamic control of the pressing force of the scraper 300, making it particularly suitable for high-end manufacturing fields with high requirements for the fit accuracy and service life of the scraper 300. In practical applications, the roller-pressed scraper 300 pressing device 200 has shown good results, significantly improving scraping uniformity and significantly reducing equipment failure rate, demonstrating good promotional value and industrialization prospects.

[0040] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A clamping device (200) for clamping a scraper (300), characterized in that, include: A scraper holder (260), wherein the scraper (300) is disposed on the scraper holder (260); A pressure plate (220) is provided, one end of which abuts against the scraper (300), and the other end of which is rotatably connected to the scraper holder (260). A pressing structure is provided on the pressure plate (220) for adjusting the pressure applied by the pressure plate (220) to the scraper (300).

2. The clamping device (200) according to claim 1, characterized in that, It also includes a gasket (210) disposed between the scraper (300) and the pressure plate (220), wherein the pressure plate (220) abuts against the scraper (300) through the gasket (210).

3. The clamping device (200) according to claim 1, characterized in that, The clamping structure includes a bolt (240), which is inserted through the pressure plate (220). The shank (241) of the bolt (240) passes through the pressure plate (220) and is threadedly connected to the scraper holder (260).

4. The clamping device (200) according to claim 3, characterized in that, The clamping structure also includes a nut (230), which is sleeved on the bolt (240) and is located between the head (242) of the bolt (240) and the pressure plate (220).

5. The clamping device (200) according to claim 4, characterized in that, The nut (230) is configured as a wing nut.

6. The clamping device (200) according to claim 1, characterized in that, The pressure plate (220) is L-shaped and includes a first plate (221) and a second plate (222) connected to each other. The length of the second plate (222) is greater than the length of the first plate (221), and the pressing structure is disposed on the second plate (222).

7. The clamping device (200) according to claim 2, characterized in that, The scraper holder (260) is provided with a clamping part, and at least a portion of both the scraper (300) and the gasket (210) are disposed in the clamping part.

8. The clamping device (200) according to claim 7, characterized in that, The clamping part includes a first clamping plate (262) and a second clamping plate (263). The first clamping plate (262) and the second clamping plate (263) form a narrow and elongated receiving space (264). The scraper (300) and the gasket (210) are inserted into the receiving space (264). The gasket (210) abuts against the first clamping plate (262), and the scraper (300) abuts against the second clamping plate (263).

9. The clamping device (200) according to claim 1, characterized in that, The scraper holder (260) is provided with a fixed bracket (261), and the pressure plate (220) is rotatably connected to the fixed bracket (261).

10. The clamping device (200) according to claim 9, characterized in that, The fixed bracket (261) is configured as a triangle, with the longest side of the fixed bracket (261) located on the scraper holder (260).

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