Powder scraping device for powder pressing of electrostatic chuck
By designing the intermediate shaft, scraper, and threaded column structure of the powder scraper, the problem of low powder scraping efficiency in electrostatic chuck powder pressing was solved, achieving uniform powder scraping and improved molding quality.
Patent Information
- Application Number
- CN202520453594.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-16
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-16
AI Technical Summary
In the existing technology, the powder scraping efficiency during the electrostatic chuck powder pressing process is low, and the direction and depth are difficult to control, resulting in uneven powder mixing, which affects the product molding quality and increases costs.
Design a powder scraping device that includes an intermediate shaft, a scraper, a cover plate, and a hollow threaded column. The height and position of the scraper can be adjusted through threaded connections and fixing components to ensure uniform powder scraping.
It improves the efficiency and uniformity of powder scraping, reduces product defects, increases the molding rate, and lowers costs.
Smart Images
Figure CN223834727U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of powder scraper technology, and in particular to a powder scraper for electrostatic chuck powder pressing. Background Technology
[0002] In existing technologies, when preparing electrostatic chuck ceramics, it is necessary to scrape the pressed powder to adjust the thickness of the powder in the mold. Powder pressing technology uses a single round rod during pressing, relying on manual hand-held rotation and scraping. This is inefficient, and the direction and depth of scraping cannot be controlled. The powder is not evenly mixed, which can easily lead to quality problems such as corrosion, defects, and poor density in the molded product. This reduces the product's molding rate and thus increases costs. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a powder scraping device for electrostatic chuck powder pressing, so as to solve the problems mentioned in the background art.
[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:
[0005] A powder scraper for electrostatic chuck powder pressing, the powder scraper includes an intermediate shaft, a cover plate and a hollow threaded post, a scraper is detachably provided at the bottom of the intermediate shaft, the intermediate shaft is rotatably disposed in the threaded post, the threaded post is threadedly connected to the cover plate, and the cover plate is provided with a fixing component for limiting the position of the threaded post.
[0006] Preferably, the outer wall of the threaded post is provided with external threads, and the cover plate is provided with threaded holes that mate with the threaded post.
[0007] Preferably, the intermediate shaft is disposed in the threaded column by a plurality of bearings.
[0008] Preferably, both ends of the threaded post are provided with snap rings for limiting the relative position between the intermediate shaft and the threaded post.
[0009] Preferably, the fixing component includes a support sleeve, the top of which is provided with a ring, and the ring is provided with at least one fastener.
[0010] Preferably, the end of the intermediate shaft away from the scraper is provided with a rotating handle.
[0011] The above technical solution has the following beneficial effects:
[0012] This application sets up an intermediate shaft and a scraper. Rotating the intermediate shaft allows the scraper to rotate, thereby scraping powder. By setting up a cover plate and a hollow threaded column, the cover plate is used to support the entire structure for scraping powder. The threaded column is threadedly connected to the cover plate and can be used to adjust the height of the scraper in the vertical direction. By setting up a fixing component, the threaded column is fixed after adjustment to obtain a certain height. Attached Figure Description
[0013] Figure 1 This is a cross-sectional view of a powder scraper for electrostatic chuck powder pressing according to the present invention. Detailed Implementation
[0014] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.
[0015] refer to Figure 1 A powder scraper for electrostatic chuck powder pressing includes an intermediate shaft 1, a cover plate 3 and a hollow threaded post 4. The bottom of the intermediate shaft 1 is detachably provided with a scraper 2. The intermediate shaft 1 is rotatably disposed in the threaded post 4. The threaded post 4 is threadedly connected to the cover plate 3. The cover plate 3 is provided with a fixing component for limiting the position of the threaded post 4.
[0016] The intermediate shaft 1 is set in the threaded column 4 and can rotate. The bottom of the intermediate shaft 1 is provided with a scraper 2, which is used for scraping powder during the powder pressing and molding process. The cover plate 3 can also be provided with through holes for installing the cover plate 3. The fixing component is used to limit the position of the threaded column 4.
[0017] The outer wall of the threaded column 4 is provided with external threads, and the cover plate 3 is provided with threaded holes that mate with the threaded column 4. That is, the threaded column 4 can be moved up and down by rotating it. By adjusting the up and down position of the threaded column 4, the up and down position of the scraper 2 can be adjusted to facilitate powder scraping.
[0018] The intermediate shaft 1 is set in the threaded column 4 by several bearings 6. The specific number of bearings 6 can be set to two to support the rotation of the intermediate shaft 1, thereby supporting the rotation of the scraper 2 to scrape powder.
[0019] Both ends of the threaded column 4 are provided with retaining rings 5 for limiting the relative position of the intermediate shaft 1 and the threaded column 4. The retaining rings 5 are used to hold the intermediate shaft 1 and limit the position of the intermediate shaft 1 relative to the threaded column 4. Specifically, the retaining rings 5 are provided at both ends of the threaded column 4. In other embodiments of this embodiment, the retaining rings 5 can be set as one, specifically set at the upper end of the threaded column 4.
[0020] The fixing component includes a support sleeve 7, the top of which is provided with a ring 8, and at least one fastener 9 is provided on the ring. The support sleeve 7 can be fixed to the cover plate 3 by threaded connection. The ring 8 can be fixed together with the support sleeve 7. The fastener 9 is used to fix the position of the threaded post 4. The threaded post 4 can only move up and down by rotating. By setting the fastener 9, the requirement to restrict its position can be met.
[0021] The fixing component is used to fix the position of the threaded post 4 relative to the cover plate 3. During the fixing operation, after the threaded post 4 is adjusted to the position, the position of the threaded post 4 can be restricted by the fasteners 9. Specifically, the number of fasteners 9 can be 2 to 4. The fasteners 9 can be screws. The fixing can be completed by tightening the screws.
[0022] A rotating handle 10 is provided at the end of the intermediate shaft 1 away from the scraper 2. By providing the rotating handle 10, it is convenient to rotate the intermediate shaft 1 when scraping powder.
[0023] The technical solution of this application sets an intermediate shaft 1 and a scraper 2. Rotating the intermediate shaft 1 will cause the scraper 2 to rotate, thereby allowing the scraper 2 to scrape powder. By setting a cover plate 3 and a hollow threaded post 4, the cover plate 3 is used to support the entire structure for scraping powder. The threaded post 4 is threadedly connected to the cover plate 3 and can be used to adjust the height of the scraper 2 in the vertical direction. By setting a fixing component, the threaded post 4 is fixed after adjustment to obtain a certain height.
[0024] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.
Claims
1. A powder scraper for electrostatic chuck powder pressing, characterized in that, The powder scraper includes an intermediate shaft (1), a cover plate (3) and a hollow threaded post (4). The bottom of the intermediate shaft (1) is detachably provided with a scraper (2). The intermediate shaft (1) is rotatably disposed in the threaded post (4). The threaded post (4) is threadedly connected to the cover plate (3). The cover plate (3) is provided with a fixing component for limiting the position of the threaded post (4).
2. A powder scraper for electrostatic chuck powder pressing according to claim 1, characterized in that, The outer wall of the threaded post (4) is provided with external threads, and the cover plate (3) is provided with threaded holes that mate with the threaded post (4).
3. A powder scraper for electrostatic chuck powder pressing according to claim 1, characterized in that, The intermediate shaft (1) is disposed in the threaded column (4) by a number of bearings (6).
4. A powder scraper for electrostatic chuck powder pressing according to claim 3, characterized in that, Both ends of the threaded post (4) are provided with snap rings (5) for limiting the relative position of the intermediate shaft (1) and the threaded post (4).
5. A powder scraper for electrostatic chuck powder pressing according to claim 1, characterized in that, The fixing component includes a support sleeve (7), the top of which is provided with a ring (8), and the ring is provided with at least one fastener (9).
6. A powder scraper for electrostatic chuck powder pressing according to claim 1, characterized in that, The intermediate shaft (1) is provided with a rotating handle (10) at one end away from the scraper (2).