A wedge block device for adjusting the angle and thickness of electrode coating.
By introducing the elastic component of the wedge block device into the coating device, the problem of inaccurate adjustment of the distance between the coating head and the battery electrode is solved, and precise control of the coating slope and thickness is achieved, ensuring the uniformity of coating and the safety of the electrode.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI PINGSHE INTELLIGENT TECH CO LTD
- Filing Date
- 2025-04-29
- Publication Date
- 2026-05-26
AI Technical Summary
In the existing technology, the distance between the coating head, the doctor blade body and the battery electrode is not accurately adjusted, which can easily lead to accidental contact with the battery electrode, resulting in uneven coating and damage to the electrode.
A wedge block device is used, and a pressure plate with an elastic component is set between the coating plate and the conveyor table. The pressure plate first contacts the conveyor table to slow down the forward speed of the coating plate. The compression of the elastic component is used to precisely control the distance between the coating plate and the battery plates, ensuring the uniformity of the coating slope and thickness.
It achieves precise control over the coating angle and thickness, avoiding direct contact between the coating plate and the battery electrode, thus improving the uniformity of coating and the protection effect on the electrode.
Smart Images

Figure CN224271846U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of battery electrode paste technology, specifically to a wedge block device for adjusting the slope and thickness of electrode paste. Background Technology
[0002] When applying lead paste to battery plates, the prepared plates are first placed on the conveyor belt of the coating equipment, and the plates move at a constant speed on the conveyor belt. Simultaneously, lead paste is conveyed to a trough located above the plates. As the plates move, the lead paste in the trough is released onto the plate surface under the action of gravity or other conveying devices. Then, a scraper, maintained at a certain angle and distance from the plates, begins to work, scraping away excess lead paste from the plate surface, ensuring that the lead paste is evenly applied to the plates according to the thickness of the gap set between the scraper and the plates, forming a smooth lead paste coating. During this process, by adjusting the angle and position of the scraper, the slope and thickness of the paste can be controlled, ensuring that the distribution of lead paste on the plates meets the process requirements of battery production, thus laying the foundation for the subsequent performance and quality of the battery.
[0003] For example, the utility model patent with authorization announcement number CN218610201U discloses a lithium battery electrode coating device using a scraper. This device includes a base plate, a support fixedly connected to the top center of the base plate, a hydraulic rod fixedly connected to the inner wall of the top of the support, a sliding plate fixedly connected to the drive end of the hydraulic rod, and the left and right ends of the sliding plate slidably connected to the inner walls of the left and right ends of the support, respectively. A scraper body is fixedly connected to the bottom of the sliding plate, and fixed rods are fixedly connected to the left and right sides of both the front and rear ends of the sliding plate. A fixed shaft is fixedly connected to one end of the front fixed rod, and a coating roller is rotatably connected to the outer wall of the fixed shaft. A sponge is fixedly connected to the outer wall of the coating roller. The entire device allows adjustment of the scraper height according to the required solution thickness, improving practicality. Adjusting the scraper enables more uniform coating, and the recycling of the solution prevents resource waste.
[0004] However, in practical applications, it has been found that the above solution still has some shortcomings: because the height needs to be adjusted to adjust the coating head, the scraper body and the sponge to the appropriate position, the adjustment process relies solely on the hydraulic rod control, which cannot accurately control the distance between them and the lithium battery electrode. At the same time, there is also the problem of accidentally touching the battery electrode during the adjustment, which can damage the battery electrode. Utility Model Content
[0005] This invention provides a wedge block device for adjusting the angle and thickness of the electrode coating, thereby solving the technical problems of poor accuracy and easy accidental contact with the battery electrode in the prior art when adjusting the distance between the coating head, the scraper body and the battery electrode.
[0006] To solve the above problems, the wedge block device for adjusting the angle and thickness of the electrode paste provided by this utility model adopts the following technical solution:
[0007] A wedge block device for adjusting the tilt and thickness of electrode coating includes:
[0008] The wedge block body is used to be mounted on the coating plate and is adapted to the length direction of the coating plate. The wedge block has a paste outlet that communicates with the coating plate.
[0009] At least two pressure plates are arranged at intervals along the length of the wedge block body and are fixed to the wedge block body by elastic components. The pressure plates form protrusions that protrude from the wedge block body. The pressure plates are used to contact the conveying table surface where the battery plates are located first when the wedge block body moves down.
[0010] The beneficial effects of the wedge block device for adjusting the angle and thickness of the electrode paste provided by this utility model are as follows: With the wedge block body and pressure plate, when adjusting the position between the coating plate and the conveyor table, the pressure plate contacts the conveyor table first. Due to the elastic component, after the pressure plate contacts the conveyor table, the elastic component is in a compressed state, slowing down the forward speed of the coating plate and preventing the coating plate from directly contacting the battery electrode. Simultaneously, the compression of the elastic component allows for more precise control of the distance between the coating plate and the battery electrode. This makes the angle and thickness of the paste easier to control, effectively solving the technical problems of poor accuracy and accidental contact with the battery electrode in the prior art when adjusting the distance between the coating head, scraper body, and battery electrode.
[0011] Furthermore, the number of pressure plates is three, with one pressure plate located in the middle of the wedge-shaped block body and the other two located at both ends of the wedge-shaped block body, forming a channel between adjacent pressure plates for the battery plates to pass through. In this way, the entire device can simultaneously accommodate the paste application processing of two sets of battery plates.
[0012] Furthermore, the elastic component includes a guide rod fixed to the pressure plate and passing through the wedge-shaped block body, and a spring fitted onto the guide rod.
[0013] Furthermore, each guide rod extends into the coating plate, and the extended end of the guide rod has a transverse baffle, with a spring fitted on the guide rod between the transverse baffle and the coating plate.
[0014] Furthermore, the wedge-shaped block body is mounted on the coating plate by bolts. Bolt mounting has the advantages of convenient disassembly and stable connection.
[0015] Furthermore, in the vertical direction, the lower end of the wedge-shaped block body is a horizontal end face, and the side is a vertical end face. The pressure plate is installed on the horizontal end face, and the pressure plate is arranged horizontally to press against the conveyor table surface in the vertical direction. The horizontal end face provides a flat mounting surface, which facilitates the fixing of the pressure plate.
[0016] Furthermore, the bolt is mounted on the vertical end face. The vertical end face provides a flat mounting surface, facilitating bolt installation.
[0017] Furthermore, the wedge-shaped block body has an outlet channel for the paste to flow out, the outlet channel having the paste outlet located at the junction of the horizontal and vertical end faces. The advantage of this arrangement is that the paste outlet is unaffected by the vertical and horizontal end faces and will not interfere with the pressure plate and bolts. Attached Figure Description
[0018] The above and other objects, features, and advantages of the present invention will become readily understood by reading the following detailed description of exemplary embodiments with reference to the accompanying drawings. In the drawings, several embodiments of the present invention are shown by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:
[0019] Figure 1 This is a schematic diagram illustrating the application of the wedge block device for adjusting the angle and thickness of the electrode paste provided by this utility model. Figure 1 ;
[0020] Figure 2 This is a schematic diagram illustrating the application of the wedge block device for adjusting the angle and thickness of the electrode paste provided by this utility model. Figure 2 ;
[0021] Figure 3 for Figure 1 Enlarged view of point A in the middle;
[0022] Figure 4 for Figure 3 A schematic diagram showing the connection between the pressure plate, guide rod, and spring.
[0023] Explanation of reference numerals in the attached figures:
[0024] 1. Wedge block body; 2. Paste outlet; 3. Pressure plate; 4. Conveying table; 5. Guide rod; 6. Spring; 7. Horizontal baffle; 8. Bolt; 9. Horizontal end face; 10. Vertical end face; 11. Outflow channel; 12. Battery electrode plate. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Those skilled in the art should understand that the embodiments described below are only some, not all, of the embodiments disclosed. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0026] The principles and spirit of this utility model will be explained in detail below with reference to several representative embodiments.
[0027] An embodiment of the wedge block device for adjusting the slope and thickness of electrode paste provided by this utility model:
[0028] like Figures 1 to 4 As shown, the wedge block device for adjusting the slope and thickness of the electrode paste includes a wedge block body 1 and a pressure plate 3. The wedge block body 1 is used to install on the coating plate and is adapted to the length direction of the coating plate. The wedge block has a paste outlet 2 that communicates with the coating plate. There are at least two pressure plates 3, which are arranged at intervals along the length direction of the wedge block body 1 and are all fixed to the wedge block body 1 by elastic components. The pressure plates 3 form protrusions that protrude from the wedge block body 1. The pressure plates 3 are used to first contact the conveying table surface 4 where the battery electrode 12 is located when the wedge block body 1 moves down.
[0029] In this embodiment, there are three pressure plates 3, one of which is located in the middle of the wedge-shaped block body 1, and the other two are located at both ends of the wedge-shaped block body 1. A channel for the battery electrode plates 12 to pass through is formed between adjacent pressure plates 3. This allows the entire device to simultaneously accommodate the paste application of two sets of battery electrode plates 12. In other embodiments, the number of pressure plates 3 can be adjusted according to actual needs, and can be two or four.
[0030] like Figure 3 and Figure 4 As shown, the elastic component includes a guide rod 5 fixed to the pressure plate 3 and passing through the wedge-shaped block body 1, and a spring 6 fitted on the guide rod 5. Specifically, each guide rod 5 extends into the coating plate, and the extended end of the guide rod 5 has a transverse baffle 7, with a spring 6 fitted on the guide rod 5 between the transverse baffle 7 and the coating plate.
[0031] In this embodiment, the wedge-shaped block body 1 is mounted on the coating plate by bolts 8. Bolt 8 installation offers the advantages of easy disassembly and stable connection. In other embodiments, the wedge-shaped block body 1 can also be mounted on the coating plate by a snap-fit structure.
[0032] For ease of installation, please refer to... Figure 3 In the vertical direction, the lower end of the wedge block body 1 is a horizontal end face 9, and the side is a vertical end face 10. The pressure plate 3 is installed on the horizontal end face 9, and the pressure plate 3 is arranged horizontally to press against the conveyor table 4 in the vertical direction. The horizontal end face 9 provides a flat mounting surface, which facilitates the fixing of the pressure plate 3.
[0033] Similarly, bolt 8 is mounted on the vertical end face 10. The vertical end face 10 provides a flat mounting surface, facilitating the installation of bolt 8.
[0034] Finally, as Figure 3 As shown, the wedge-shaped block body 1 has an outlet channel 11 for the paste to flow out, and the outlet channel 11 has the paste outlet 2, which is located at the junction of the horizontal end face 9 and the vertical end face 10. The advantage of this arrangement is that the paste outlet 2 is not affected by the vertical end face 10 and the horizontal end face 9, and will not interfere with the pressure plate 3 and the bolt 8.
[0035] The working principle of the wedge block device for adjusting the angle and thickness of the electrode paste provided by this utility model is as follows: When the position between the coating plate and the conveying table 4 is adjusted by the drive component (motor or cylinder), the pressure plate 3 first contacts the conveying table 4. Due to the elastic component, the elastic component is compressed after the pressure plate 3 contacts the conveying table 4, which slows down the forward speed of the coating plate and avoids the coating plate from directly contacting the battery electrode 12. At the same time, the distance between the coating plate and the battery electrode 12 can be more accurately controlled by the amount of compression of the elastic component, making the angle and thickness of the paste easier to control.
[0036] Based on the above description in this specification, those skilled in the art will also understand that the following terms used, such as "upper," "lower," "front," "rear," "left," "right," "width," "horizontal," "top," "bottom," "inner," and "outer," are terms indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings of this specification. They are only for the purpose of facilitating the explanation of the present invention and simplifying the description, and do not explicitly or implicitly suggest that the device or element involved must have the specific orientation, or be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms should not be understood or interpreted as limitations on the present invention.
[0037] In addition, in the description of this specification, "multiple" means at least two, such as two, three or more, etc., unless otherwise expressly and specifically defined.
Claims
1. A wedge device for adjusting the slope and thickness of a pasted pad, characterized in that, include: The wedge block body is used to be mounted on the coating plate and is adapted to the length direction of the coating plate. The wedge block has a paste outlet that communicates with the coating plate. At least two pressure plates are arranged at intervals along the length of the wedge block body and are fixed to the wedge block body by elastic components. The pressure plates form protrusions that protrude from the wedge block body. The pressure plates are used to contact the conveying table surface where the battery plates are located first when the wedge block body moves down.
2. The wedge block device for adjusting the angle and thickness of the electrode coating according to claim 1, characterized in that: The number of pressure plates is three, with one pressure plate located in the middle of the wedge-shaped block body and the other two located at both ends of the wedge-shaped block body. A channel for the battery plates to pass through is formed between adjacent pressure plates.
3. The wedge block device for adjusting the angle and thickness of the electrode coating according to claim 2, characterized in that: The elastic component includes a guide rod fixed to the pressure plate and passing through the wedge-shaped block body, and a spring fitted onto the guide rod.
4. The wedge block device for adjusting the angle and thickness of the electrode coating according to claim 3, characterized in that: Each guide rod extends into the coating plate, and the extended end of the guide rod has a transverse baffle. A spring is fitted onto the guide rod between the transverse baffle and the coating plate.
5. The wedge block device for adjusting the angle and thickness of the electrode paste according to any one of claims 1 to 4, characterized in that: The wedge-shaped block body is mounted on the coating plate by bolts.
6. The wedge block device for adjusting the angle and thickness of the electrode coating according to claim 5, characterized in that: In the vertical direction, the lower end of the wedge block body is a horizontal end face, and the side is a vertical end face. The pressure plate is installed on the horizontal end face and is arranged horizontally so as to press against the conveyor table surface in the vertical direction.
7. The wedge block device for adjusting the angle and thickness of the electrode coating according to claim 6, characterized in that: The bolt is installed on the vertical end face.
8. The wedge block device for adjusting the angle and thickness of the electrode coating according to claim 6 or 7, characterized in that: The wedge-shaped block body has an outlet channel for the paste to flow out, the outlet channel has the paste outlet, and the paste outlet is located at the junction of the horizontal end face and the vertical end face.