A sander screen
By using an assembled structure and a splicing design of an arc-shaped mesh, the problem of replacing the entire existing screen has been solved, which has enabled convenient partial replacement and improved screening effect, reduced maintenance costs and improved the stability and sealing of the screen.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING KAISHENG MACHINERY MANUFACTURING CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-06-09
AI Technical Summary
The existing screen ring type grinding machine has an integral ring structure for the screen, which requires the whole machine to be replaced when local deformation occurs. This results in high maintenance costs, strict installation size requirements, and gaps that can easily appear, affecting the screening effect.
It adopts an assembled structure, including a mesh plate and four sets of arc-shaped mesh bodies. Partial replacement can be achieved through slots, insertion holes and insertion posts. Combined with the positioning of long shaft screws and nuts, the arc-shaped mesh bodies are spliced into a circular mesh ring, and the reinforcing ribs improve stability.
It enables convenient replacement of partial screens, reduces maintenance costs, improves screening efficiency and installation convenience, avoids installation gaps, and enhances the stability and sealing of the screen.
Smart Images

Figure CN224334622U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of screen technology, specifically a screen for a grinding machine. Background Technology
[0002] A screen ring grinder is a device used to grind wood shavings into fine shavings. It is mainly used in the particleboard production industry and can grind wood shavings into fine shavings for use as a surface material for particleboard. Its performance includes grinding wood shavings into fine shavings and removing impurities through magnetic separation and a heavy object separator. The internal screen has a direct impact on the size of the wood chips it grinds.
[0003] The existing screen ring type grinding machine mainly has an integral ring mesh structure inside, which wraps around the grinding area for filtration. Due to its integral structure, it needs to be replaced as a whole during use. When the mesh is dented or deformed due to external impact, the entire mesh needs to be replaced, which increases its maintenance cost. At the same time, the circumferential wrapping has strict requirements for its installation dimensions. Otherwise, gaps will appear due to the installation spacing on one side, which will affect the screening effect.
[0004] Therefore, this utility model provides a screen for a grinding machine to solve the above problems. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] This utility model provides a screen for a grinding machine, which aims to solve the problems mentioned in the background art.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: a grinding machine screen, comprising a screen plate and four sets of arc-shaped mesh bodies. The outer wall of the screen plate is integrally provided with a first lug, and the outer wall of the arc-shaped mesh body away from the screen plate is integrally provided with a second lug. One end of the arc-shaped mesh body is provided with a slot and a first insertion hole, and the other end of the arc-shaped mesh body is integrally connected with a card plate, and the outer wall of the card plate is integrally connected with a second insertion post. The card plates of adjacent arc-shaped mesh bodies are engaged inside the slot, and the second insertion posts of adjacent arc-shaped mesh bodies are inserted into the first insertion hole.
[0009] As a preferred technical solution of this application, the first and second lugs are penetrated by a long-shaft screw, and the long-shaft screw is connected to the grinding machine cavity. The external thread of the long-shaft screw is connected to a nut, and the nut abuts against the side of the first and second lugs that are far apart from each other.
[0010] As a preferred technical solution of this application, the four groups of arc-shaped mesh bodies are spliced together to form a circular mesh ring, and the arc of each group of arc-shaped mesh bodies is ninety degrees, and the outer diameter of the arc-shaped mesh body is equal to the outer diameter of the mesh plate.
[0011] As a preferred technical solution of this application, the outer wall of the arc-shaped mesh is welded with reinforcing ribs, and each arc-shaped mesh is uniformly welded with two reinforcing ribs. The center line of the reinforcing ribs is on the same horizontal plane as the axis of the second ear through hole, and the depth of the slot is equal to the thickness of the card plate.
[0012] As a preferred technical solution of this application, a first insertion post is integrally provided on the side of the mesh plate near the arc-shaped mesh body, and a second insertion hole is opened on the side of the arc-shaped mesh body near the mesh plate, and the diameter of the second insertion hole is equal to the diameter of the first insertion post.
[0013] As a preferred technical solution of this application, the axis of the second insertion hole corresponds to the center line of the reinforcing rib, and two second insertion holes are opened on each of the arc-shaped mesh bodies. The outer wall of the mesh plate is provided with eight first insertion posts corresponding to the second insertion holes, and the first insertion posts are inserted into the interior of the second insertion holes.
[0014] (III) Beneficial Effects
[0015] The beneficial effects of this application are as follows:
[0016] 1. This utility model, through its modular structure, allows for the replacement of partially deformed mesh, thereby improving the convenience of later maintenance of the device and eliminating the need to replace the entire mesh, thus reducing its maintenance costs.
[0017] 2. This utility model completes the mutual docking of the arc-shaped mesh through a plug-in structure, which facilitates the quick splicing and assembly of the device, further improving the ease of use of the screen and making it easy to install and position quickly. At the same time, the setting of the mesh plate can improve the three-dimensional effect of the screen, better wrap the grinding area, and improve its screening and blocking effect. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the exploded structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the mesh distribution structure of this utility model;
[0020] Figure 3 This is a schematic diagram of the overall assembly structure of the present utility model;
[0021] Figure 4 This is a schematic diagram of the reinforcing rib distribution structure of this utility model;
[0022] Figure 5This is a schematic diagram of the overall structure of the arc-shaped mesh of this utility model.
[0023] In the picture:
[0024] 1. Mesh plate; 11. First ear; 12. First plug-in post; 2. Arc-shaped mesh body; 21. Second ear; 22. Reinforcing rib; 23. Slot; 24. First plug-in hole; 25. Second plug-in hole; 26. Clip plate; 27. Second plug-in post. 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. 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.
[0026] like Figure 1-5 As shown, this utility model provides a screen, including a screen plate 1 and four sets of arc-shaped mesh bodies 2. A first lug 11 is integrally provided on the outer wall of the screen plate 1, and a second lug 21 is integrally provided on the outer wall of the arc-shaped mesh body 2 on the side away from the screen plate 1. One end of the arc-shaped mesh body 2 has a slot 23 and a first insertion hole 24, and the other end of the arc-shaped mesh body 2 is integrally connected to a locking plate 26. A second insertion post 27 is integrally connected to the outer wall of the locking plate 26. The locking plates 26 of adjacent arc-shaped mesh bodies 2 are engaged inside the slot 23, and the second insertion posts 27 of adjacent arc-shaped mesh bodies 2 are inserted into the first insertion holes 24. Through this assembled structure, the screen can be... When the device experiences localized dents and deformation, only the individual arc-shaped mesh 2 needs to be replaced for maintenance, eliminating the need to replace the entire mesh. This reduces the maintenance costs of the device in the later stages of use. Furthermore, a mesh plate 1 is sealed at one end of the circular mesh ring formed by the arc-shaped mesh 2, further improving the efficiency of the sealed screening process. There is no need to worry about the screening effect being reduced due to installation spacing. The second insertion post 27 has a polygonal cross-section, and its insertion also has a certain positioning effect, resulting in high connection stability after adjacent arc-shaped mesh 2 are spliced together, preventing deflection or displacement of the arc-shaped mesh 2.
[0027] Furthermore, a long-shaft screw is passed through the first lug 11 and the second lug 21, and the long-shaft screw is connected to the grinding machine cavity. The external thread of the long-shaft screw is connected to a nut, and the nut abuts against the side of the first lug 11 and the second lug 21 that are far apart from each other. Through the pulling and positioning of the long-shaft screw and the grinding machine cavity, the screen plate 1 and the arc-shaped screen body 2 are squeezed and positioned, ensuring that the end of the arc-shaped screen body 2 away from the screen plate 1 is in contact with the grinding machine cavity, thereby ensuring the sealing of the screening and wrapping of the screen plate 1 and the arc-shaped screen body 2, and avoiding the generation of installation gaps due to process errors, etc.
[0028] Furthermore, the four sets of arc-shaped mesh bodies 2 are spliced together to form a circular mesh ring, and the arc of each set of arc-shaped mesh bodies 2 is ninety degrees, and the outer diameter of the arc-shaped mesh body 2 is equal to the outer diameter of the mesh plate 1.
[0029] Furthermore, the outer wall of the arc-shaped mesh 2 is welded with reinforcing ribs 22, and each arc-shaped mesh 2 is uniformly welded with two reinforcing ribs 22. The center line of the reinforcing ribs 22 is on the same horizontal plane as the axis of the through hole of the second ear 21. By welding the reinforcing ribs 22 to the outside, the strength and rigidity of the arc-shaped mesh 2 are improved, while avoiding material waste or deformation caused by increasing the wall thickness, thus improving the overall stability of the arc-shaped mesh 2. The depth of the slot 23 is equal to the thickness of the card plate 26, so that when the card plate 26 is engaged in the slot 23, the outer wall of the arc-shaped mesh 2 is on the same horizontal plane, avoiding unevenness and ensuring the stability of the contact and compression between the mesh plate 1 and the arc-shaped mesh 2.
[0030] Furthermore, a first insertion post 12 is integrally provided on the side of the mesh plate 1 near the arc-shaped mesh body 2, and a second insertion hole 25 is provided on the side of the arc-shaped mesh body 2 near the mesh plate 1. The diameter of the second insertion hole 25 is equal to the diameter of the first insertion post 12. The axis of the second insertion hole 25 corresponds to the center line of the reinforcing rib 22. Two second insertion holes 25 are provided on each arc-shaped mesh body 2. Eight first insertion posts 12 are provided on the outer wall of the mesh plate 1 corresponding to the second insertion holes 25. The first insertion posts 12 are inserted into the interior of the second insertion holes 25. Through the insertion of the first insertion posts 12 and the second insertion holes 25, the stability of the connection between the mesh plate 1 and the arc-shaped mesh body 2 can be further realized. At the same time, it plays a pre-installation role for the mesh plate 1. After the first insertion posts 12 and the second insertion holes 25 are inserted, they provide auxiliary support and positioning for the mesh plate 1, while also ensuring the precise alignment of the first support ear 11 and the second support ear 21, which facilitates subsequent installation and positioning.
[0031] Working principle: First, the arc-shaped mesh 2 is spliced and installed. By splicing adjacent arc-shaped mesh 2, the installation of four sets of arc-shaped mesh 2 is completed. The splicing and positioning are completed by the insertion and positioning of the second insertion post 27 and the first insertion hole 24. Then, the arc-shaped mesh 2 is connected to the grinding machine cavity by the long shaft screw. At the same time, the mesh plate 1 is installed. The mesh plate 1 and the arc-shaped mesh 2 are squeezed and positioned by the external bolts, thereby wrapping and screening the grinding area of the grinding machine to complete the screening of the sanded wood chips.
[0032] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.
Claims
1. A screen for a grinding machine, characterized in that: The device includes a mesh plate (1) and four sets of arc-shaped mesh bodies (2). The outer wall of the mesh plate (1) is integrally provided with a first ear (11). The outer wall of the arc-shaped mesh body (2) away from the mesh plate (1) is integrally provided with a second ear (21). One end of the arc-shaped mesh body (2) is provided with a slot (23) and a first insertion hole (24). The other end of the arc-shaped mesh body (2) is integrally connected with a card plate (26), and the outer wall of the card plate (26) is integrally connected with a second insertion post (27). The card plates (26) of the adjacent arc-shaped mesh bodies (2) are engaged in the inside of the slot (23), and the second insertion post (27) of the adjacent arc-shaped mesh bodies (2) is inserted into the inside of the first insertion hole (24).
2. The screen for a grinding machine according to claim 1, characterized in that: The first lug (11) and the second lug (21) are connected by a long shaft screw, and the long shaft screw is connected to the grinding machine cavity. The external thread of the long shaft screw is connected to a nut, and the nut abuts against the side of the first lug (11) and the second lug (21) that are far apart from each other.
3. A screen for a grinding machine according to claim 2, characterized in that: The four sets of arc-shaped mesh bodies (2) are spliced together to form a circular mesh ring, and the arc of each set of arc-shaped mesh bodies (2) is ninety degrees. The outer diameter of the arc-shaped mesh body (2) is equal to the outer diameter of the mesh plate (1).
4. A screen for a grinding machine according to claim 3, characterized in that: The outer wall of the arc-shaped mesh (2) is welded with reinforcing ribs (22), and each arc-shaped mesh (2) is uniformly welded with two reinforcing ribs (22). The center line of the reinforcing ribs (22) is on the same horizontal plane as the axis of the through hole of the second ear (21). The depth of the slot (23) is equal to the thickness of the card plate (26).
5. A screen for a grinding machine according to claim 1, characterized in that: The mesh plate (1) is integrally provided with a first plug post (12) on the side near the arc-shaped mesh body (2), and the arc-shaped mesh body (2) is provided with a second plug hole (25) on the side near the mesh plate (1), and the diameter of the second plug hole (25) is equal to the diameter of the first plug post (12).
6. A screen for a grinding machine according to claim 5, characterized in that: The axis of the second insertion hole (25) corresponds to the center line of the reinforcing rib (22), and two second insertion holes (25) are opened on each of the arc-shaped mesh bodies (2). Eight first insertion posts (12) are provided on the outer wall of the mesh plate (1) corresponding to the second insertion holes (25), and the first insertion posts (12) are inserted into the interior of the second insertion holes (25).