A screening device for high strength stucco gypsum processing
By using a servo motor-driven lever system and rubber hammer assembly, the problem of plaster stacking was solved, enabling automated pouring and screening of high-strength plaster, improving production efficiency and reducing equipment maintenance costs.
Patent Information
- Application Number
- CN202521446517.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-10
- Publication Date
- 2026-07-24
- Estimated Expiration
- 2035-07-10
Smart Images

Figure CN224542330U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of plaster screening devices, specifically a screening device for processing high-strength plaster. Background Technology
[0002] Chinese patent document CN219356380U discloses a screening device for plaster processing, belonging to the technical field of screening devices. This device includes a housing with symmetrically arranged filter and crushing tanks inside. In this invention, during material screening, the material falls into the filter tank through a feed hopper and undergoes preliminary screening via a first filter screen. Coarse material enters the crushing tank through a connecting port, where it is crushed by a crushing mechanism. The crushed material is then filtered through a second filter screen. Material meeting the required precision falls down, while material not meeting the required precision enters a return cylinder through a discharge pipe. A first motor drives a screw rod to rotate, conveying the material in the return cylinder upwards, allowing the coarse material to be fed into the crushing tank for secondary crushing. This screening structure allows for repeated crushing of coarse material that has not reached the required precision until the material reaches the required crushing precision, effectively improving the material qualification rate.
[0003] However, in the above-mentioned solutions and existing technologies, the production of high-strength plaster requires pouring the plaster from the feed hopper of the screening box into the screening box for screening. During the pouring process, the plaster is usually in pieces of different sizes, which can cause it to stack and get stuck in the feed hopper. Usually, it is necessary for personnel to use auxiliary tools to continuously tap the side wall of the feed hopper to prevent the plaster from stacking during pouring and to ensure that it is poured into the screening box smoothly. This is quite cumbersome and needs to be improved and optimized.
[0004] Therefore, this utility model proposes a screening device for processing high-strength plaster to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to provide a screening device for processing high-strength plaster, so as to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a screening device for processing high-strength plaster, comprising: a screening box, a feeding hopper at the top of the screening box, a servo motor connected to the top of the screening box via an L-shaped frame plate, a lever connected to the output end of the servo motor, and a fixed platform connected to the top of the screening box; a vibrating assembly is provided on the fixed platform, the vibrating assembly including a moving rod, an L-shaped lever plate, a mounting platform, and a rubber hammer.
[0007] Preferably, the movable rod is movably inserted into the side wall of the fixed platform, and a limit plate is connected to one end of the movable rod. An L-shaped lever is connected to the side wall of the limit plate, and the lever contacts the inner side wall of the L-shaped lever.
[0008] Preferably, tension springs are symmetrically connected to the side wall of the limiting plate, and the other end of the tension spring is connected to the side wall of the fixed platform. An installation platform is connected to the end of the moving rod, and an installation groove is provided on the side wall of the installation platform.
[0009] Preferably, a positioning groove is provided on the bottom wall of the mounting groove, and a mounting block is embedded in the mounting groove. A rubber hammer is connected to the front end of the mounting block, and the rubber hammer contacts the side wall of the feed hopper.
[0010] Preferably, a positioning block is connected to the back of the mounting block, the positioning block is inserted into the positioning groove, a first slot is symmetrically opened on both sides of the mounting platform, and a second slot is symmetrically opened on both sides of the mounting block.
[0011] Preferably, the mounting platform end wall is provided with a U-shaped insert plate, the protrusions on both sides of the U-shaped insert plate are inserted into the first slot and the second slot, the side wall of the U-shaped insert plate is provided with an insertion hole, the mounting platform end wall is connected with a protruding plate, and a knob screw is threadedly connected to the side wall of the protruding plate, the end of the knob screw is inserted into the insertion hole.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] After the mounting block is positioned and embedded into the mounting groove, the protrusions on both sides of the U-shaped insert plate are inserted into the first and second slots. After fixing the position of the U-shaped insert plate, the rubber hammer can be quickly installed on the mounting platform. The lever rotates to move the L-shaped lever plate to pull the tension spring to store force. The tension spring returns to its original position, causing the rubber hammer to strike the side wall of the feed hopper, preventing plaster from piling up in the feed hopper. There is no need for personnel to manually strike the side wall of the feed hopper with auxiliary tools. At the same time, the rubber hammer can be replaced after it wears out. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the connection of the fixed platform structure of this utility model;
[0016] Figure 3 This is an exploded view of the mounting platform structure of this utility model.
[0017] Figure 4 This is a schematic diagram of the connection of the mounting block structure of this utility model.
[0018] In the diagram: 1. Screening box; 2. Feed hopper; 3. Servo motor; 4. Lever; 5. Fixed platform; 6. Moving rod; 7. Limiting plate; 8. L-shaped lever; 9. Tension spring; 10. Mounting platform; 11. Mounting slot; 12. Positioning slot; 13. Mounting block; 14. Rubber hammer; 15. Positioning block; 16. First slot; 17. Second slot; 18. U-shaped insert plate; 19. Insertion hole; 20. Protruding plate; 21. Knob screw. Detailed Implementation
[0019] The technical solutions in the embodiments of this utility model will be clearly and completely described below. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0020] Please see Figures 1-4 This utility model provides a technical solution: a screening device for processing high-strength plaster, comprising: a screening box 1, a feeding hopper 2 at the top of the screening box 1, a servo motor 3 connected to the top of the screening box 1 via an L-shaped frame plate, a lever 4 connected to the output end of the servo motor 3, and a fixed platform 5 connected to the top of the screening box 1; a vibrating material assembly is provided on the fixed platform 5.
[0021] The movable rod 6 in the vibrating material assembly is movably inserted into the side wall of the fixed platform 5. One end of the movable rod 6 is connected to a limiting plate 7, and an L-shaped lever 8 is connected to the side wall of the limiting plate 7. The lever 4 contacts the inner side wall of the L-shaped lever 8.
[0022] Servo motor 3 controls lever 4 to rotate. During the rotation of lever 4, the side wall first comes into contact with the inner side wall of L-shaped plate 8, and then the end of lever 4 comes into contact with L-shaped plate 8 to push L-shaped plate 8, thereby controlling the movement of limit plate 7 and moving rod 6.
[0023] A tension spring 9 is symmetrically connected to the side wall of the limiting plate 7. The other end of the tension spring 9 is connected to the side wall of the fixed platform 5. A mounting platform 10 is connected to the end of the moving rod 6. A mounting groove 11 is opened on the side wall of the mounting platform 10.
[0024] A positioning groove 12 is provided on the bottom wall of the mounting groove 11, and a mounting block 13 is embedded in the mounting groove 11. A rubber hammer 14 is connected to the front end of the mounting block 13, and the rubber hammer 14 contacts the side wall of the feed hopper 2.
[0025] When the limit plate 7 moves, it pulls the tension spring 9 to store force, which facilitates pushing the rubber hammer 14 installed on the mounting platform 10 to strike the side wall of the feed hopper 2. The rubber hammer 14 is used to avoid hard contact with the feed hopper 2, which would damage the feed hopper 2.
[0026] The mounting block 13 is connected to a positioning block 15 on its back. The positioning block 15 is inserted into the positioning groove 12. The mounting platform 10 has first slots 16 symmetrically opened on both sides of its side walls, and the mounting block 13 has second slots 17 symmetrically opened on both sides of its side walls.
[0027] The positioning block 15 on the back of the mounting block 13 is inserted into the positioning groove 12 on the bottom wall of the mounting groove 11, so that the mounting block 13 can be positioned and embedded into the mounting groove 11.
[0028] The mounting platform 10 has a U-shaped insert plate 18 snapped into its end wall. The protrusions on both sides of the U-shaped insert plate 18 are inserted into the first slot 16 and the second slot 17. The side wall of the U-shaped insert plate 18 has an insertion hole 19. The end wall of the mounting platform 10 is connected to a protruding plate 20. A knob screw 21 is threadedly connected to the side wall of the protruding plate 20. The end of the knob screw 21 is inserted into the insertion hole 19.
[0029] Move the U-shaped insert plate 18 so that its two side protrusions can be inserted into the first slot 16 and the second slot 17 to fix the position of the mounting block 13, so that the rubber hammer 14 can be stably installed on the mounting platform 10. Rotate the knob screw 21 so that its end can be inserted into the insertion hole 19 to fix the position of the U-shaped insert plate 18.
[0030] Working principle: The positioning block 15 on the back of the mounting block 13 is inserted into the positioning groove 12 on the bottom wall of the mounting groove 11, so that the mounting block 13 is positioned and embedded in the mounting groove 11. At this time, the first slot 16 and the second slot 17 are in corresponding positions. After the protrusions on both sides of the U-shaped insert plate 18 are inserted into the first slot 16 and the second slot 17 to fix the position of the mounting block 13, the knob screw 21 is rotated so that its end is inserted into the insertion hole 19 to fix the position of the U-shaped insert plate 18, thereby realizing the quick installation of the rubber hammer 14 on the mounting platform 10. The servo motor 3 controls the rotation of the lever 4. During rotation, the L-shaped lever 8 is moved to control the movement of the limiting plate 7 and the moving rod 6. When the limiting plate 7 moves, the tension spring 9 is pulled to store force until the lever 4 separates from the L-shaped lever 8. The tension spring 9 then resets and pulls the moving rod 6 to move, causing the rubber hammer 14 to strike the side wall of the feed hopper 2. This prevents the plaster from piling up in the feed hopper 2 during the processing of high-strength plaster, ensuring that the plaster is smoothly poured into the screening box 1 for screening. There is no need for personnel to manually strike the side wall of the feed hopper with auxiliary tools. At the same time, the rubber hammer 14 can be replaced after wear.
[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A screening device for processing high-strength plaster, comprising: Screening box (1), the top of the screening box (1) is provided with a feeding hopper (2), the top of the screening box (1) is connected to a servo motor (3) via an L-shaped frame plate, the output end of the servo motor (3) is connected to a lever (4), and the top of the screening box (1) is connected to a fixed platform (5). The feature is that: a vibrating material assembly is provided on the fixed platform (5), and the vibrating material assembly includes a moving rod (6), an L-shaped lever (8), a mounting platform (10), and a rubber hammer (14). The movable rod (6) is movably inserted and installed on the side wall of the fixed platform (5). One end of the movable rod (6) is connected to a limiting plate (7). An L-shaped lever (8) is connected to the side wall of the limiting plate (7). The lever (4) contacts the inner side wall of the L-shaped lever (8). A tension spring (9) is symmetrically connected to the side wall of the limiting plate (7). The other end of the tension spring (9) is connected to the side wall of the fixed platform (5). A mounting platform (10) is connected to the end of the moving rod (6). A mounting groove (11) is opened on the side wall of the mounting platform (10). The bottom wall of the mounting groove (11) is provided with a positioning groove (12), and a mounting block (13) is embedded in the mounting groove (11). A rubber hammer (14) is connected to the front end of the mounting block (13), and the rubber hammer (14) contacts the side wall of the feed hopper (2). The mounting block (13) is connected to a positioning block (15) on its back. The positioning block (15) is inserted into the positioning groove (12). The mounting platform (10) has first slots (16) symmetrically opened on both sides of the side wall, and the mounting block (13) has second slots (17) symmetrically opened on both sides of the side wall.
2. The screening device for processing high-strength plaster as described in claim 1, characterized in that: The mounting platform (10) is fitted with a U-shaped insert plate (18) on its end wall. The protrusions on both sides of the U-shaped insert plate (18) are inserted into the first slot (16) and the second slot (17). The side wall of the U-shaped insert plate (18) is provided with a socket hole (19). The end wall of the mounting platform (10) is connected with a protruding plate (20). The side wall of the protruding plate (20) is threaded with a knob screw (21). The end of the knob screw (21) is inserted into the socket hole (19).
Citation Information
Patent Citations
Screening device for plastering gypsum processing
CN219356380U