A material leakage grid with crushing function and a feeding bin
By setting a transversely movable crushing tooth interlocking mechanism in the material leakage grid, the clogging problem caused by powder agglomeration is solved, achieving efficient screening and automated feeding, and improving the operational stability and continuity of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN KESHIFU AGRI TECH CO LTD
- Filing Date
- 2025-09-11
- Publication Date
- 2026-07-24
AI Technical Summary
Existing screens are prone to clogging their holes after the powder clumps together, resulting in reduced screening efficiency and increased manual cleaning and downtime frequency.
Design a material screening grid with crushing function. By setting a slide that can move laterally relative to the material in the screening section and interlocking with the crushing teeth in the slide, the shearing and crushing of agglomerated materials can be achieved. The interlocking movement of the crushing teeth is achieved by using a motor to drive an eccentric disk and a gear and rack mechanism.
It significantly improves material throughput, reduces downtime and maintenance caused by blockages, and enhances the stability and continuity of equipment operation.
Smart Images

Figure CN224547525U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of material leakage grid technology, specifically a material leakage grid with crushing function and a feeding bin. Background Technology
[0002] Feed hoppers are devices used in industrial production for the temporary storage and transport of materials. Their main function is to balance the material supply on the production line, preventing disruptions to upstream or downstream equipment production efficiency due to discontinuous material supply. A grating is a screen structure with holes or gaps, typically installed at the inlet or outlet of feed hoppers, conveying equipment, or processing equipment. Gratings are widely used in chemical, food, pharmaceutical, and metallurgical industries for screening powdery materials (such as powders, granules, and mineral powders). Their function is to ensure uniform material flow and intercept large particles or foreign objects.
[0003] Existing material leakage grids (such as) Figure 1 As shown in the figure, in practical applications, powders (such as flour, cement, chemical powders, etc.) may clump together due to humidity, static electricity, or accumulation pressure. Clumped powders will block the grid holes, preventing some materials from passing through smoothly, thereby reducing screening efficiency. Manual or additional equipment is required to clear and clean the clumps, which increases the difficulty of operation and the frequency of downtime, affecting the continuity of production. Utility Model Content
[0004] The purpose of this utility model is to provide a material grating and feeding bin with crushing function, so as to solve the problem mentioned in the background art that in practical applications, the powder will form agglomerates due to humidity, static electricity or accumulation pressure. The agglomerated powder cannot pass through the grating holes, causing accumulation and resulting in a decrease in screening efficiency.
[0005] To solve the above problems, this utility model provides the following technical solution: a material screening grid with crushing function, comprising a frame and a screening section:
[0006] The screening section is located at the top of the frame. The screening section has a connecting plate located at the top of the frame. A screen mesh is located on the top of the connecting plate. A slide a and a slide b are slidably mounted on the top of the connecting plate. Crushing teeth a are located inside the slide a, and crushing teeth b are located inside the slide b. The crushing teeth b and crushing teeth a are arranged alternately. The lateral displacement of the slide a and the crushing teeth a causes the crushing teeth a and the crushing teeth b to move to break up the agglomerated powder.
[0007] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting slides a and b that can move laterally relative to each other in the screening section, the crushing teeth a and b mesh alternately to shear and crush the agglomerated materials, avoiding the long-term retention of agglomerated materials on the screen grid, thereby significantly improving the material throughput and screening efficiency; at the same time, it reduces manual cleaning and downtime maintenance caused by blockage, and improves the stability and continuity of equipment operation.
[0008] Preferably, the screening section also has a limiting block a and a limiting block b disposed on the top of the connecting plate. The limiting block a is embedded in the bottom of the slide a and slides laterally with the slide a, and the limiting block b is embedded in the bottom of the slide b and slides laterally with the slide b.
[0009] By adopting the above technical solution, the sliding range of slide a and slide b can be constrained by limit block a and limit block b, ensuring the precise meshing of the breaking tooth a and the breaking tooth b.
[0010] Preferably, the screening section also has a guide groove formed on the side of the slide a, an eccentric disk is rotatably provided on the top of the connecting plate, the eccentric disk is slidably connected to the guide groove, and a motor is provided on the side of the connecting plate, the output end of the motor is connected to the eccentric disk.
[0011] By adopting the above technical solution, the eccentric disk can be driven to rotate by a motor, and the eccentric disk drives the slide a to slide back and forth through the guide groove.
[0012] Preferably, the breaking teeth a are arranged in two sets, and the two ends of the breaking teeth a are provided with sharp corners. The breaking teeth b are arranged in two sets, and the two ends of the breaking teeth b are provided with sharp corners.
[0013] By adopting the above technical solution, the penetration force on agglomerated materials can be enhanced and the crushing efficiency can be improved through the double-row crushing teeth and the sharp angle design of the crushing teeth.
[0014] Preferably, the screening section also has a transmission gear rotatably mounted on the top of the connecting plate, and a rack a is provided on the side of the slide a, which meshes with the transmission gear.
[0015] By adopting the above technical solution, the transmission gear can be rotated when the slide a drives the rack a to move laterally.
[0016] Preferably, the screening section also has a rack b rotatably disposed on the side of the slide b, the rack b being meshed with a transmission gear.
[0017] By adopting the above technical solution, after the slide a drives the transmission gear to rotate, the transmission gear drives the rack b to move, so that when the slide a moves, the slide b will move in the opposite direction to the slide a.
[0018] Preferably, rack a has a rotationally symmetrical structure with rack b around the rotation center of the transmission gear.
[0019] By adopting the above technical solution, the displacement of carriage a and carriage b can be made consistent through the symmetrical arrangement of rack a and rack b.
[0020] A feeding bin is disposed at the bottom of the material-discharging grid with crushing function described in any one of the above embodiments, the feeding bin further comprising a feeding cylinder:
[0021] The feeding cylinder is located at the bottom of the connecting plate. The inlet at the top of the feeding cylinder is located at the bottom of the screen mesh. The bottom of the feeding cylinder is equipped with an outlet and a sealing valve that controls the opening and closing of the outlet.
[0022] By adopting the above technical solution, the screened material can fall into the feeding cylinder through the screen grid, and the sealing valve can control the opening and closing of the discharge port to achieve quantitative feeding or prevent material leakage.
[0023] Compared with the prior art, the beneficial effects of this utility model are: by setting up a screening section, when the slide a and slide b move in the lateral direction, the crushing teeth a and crushing teeth b will mesh and interlock, thereby realizing the shearing and crushing of material agglomeration, ensuring that the material passes smoothly through the screen mesh and improving screening efficiency. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the existing material leakage grid structure in this application;
[0025] Figure 2 This is a schematic diagram of the overall structure of this application;
[0026] Figure 3 This is an exploded view of the screening part of this application;
[0027] Figure 4 This is an exploded view of the screening part of this application;
[0028] Figure 5 This is a schematic diagram of the screening section structure of this application;
[0029] Figure 6 This is a schematic diagram of the screening section structure of this application.
[0030] In the diagram: 1. Frame; 2. Screening section; 201. Connecting plate; 202. Limiting block a; 203. Limiting block b; 204. Screen mesh; 205. Slide a; 206. Crushing teeth a; 207. Guide groove; 208. Rack a; 209. Eccentric disc; 210. Motor; 211. Transmission gear; 212. Slide b; 213. Crushing teeth b; 214. Rack b; 3. Feeding cylinder; 301. Discharge port; 302. Sealing valve. Detailed Implementation
[0031] 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.
[0032] Example 1
[0033] Please see Figure 2 , Figure 3 and Figure 4 This embodiment provides a technical solution: a material-slugging grid with crushing function, comprising a frame 1 and a screening section 2.
[0034] The screening section 2 is located on the top of the frame 1. A connecting plate 201 is installed on the top of the frame 1, and a screen grid 204 is installed on the top of the connecting plate 201. A slide a205 and a slide b212 are slidably arranged on the top of the connecting plate 201. The slide a205 is equipped with crushing teeth a206, and the slide b212 is equipped with crushing teeth b213. The crushing teeth b213 and the crushing teeth a206 are arranged alternately. The lateral displacement of the slide a205 and the crushing teeth a206 drives the crushing teeth a206 and the crushing teeth b213 to move and break up the agglomerated powder. When the slide a205 and the slide b212 move laterally relative to each other, the crushing teeth a206 and the crushing teeth b213 are driven to mesh and interlock, thereby achieving shearing and crushing of the agglomerated material, ensuring that the material passes smoothly through the screen grid 204 and improving the screening efficiency.
[0035] Example 2
[0036] Please see Figure 4 , Figure 5 and Figure 6 This embodiment provides a technical solution: a material screening grid with crushing function, including a screening section 2.
[0037] Limiting block a202 and limiting block b203 are provided on the top of the connecting plate 201. Limiting block a202 is embedded in the bottom of the slide a205 and slides laterally with the slide a205. Limiting block b203 is embedded in the bottom of the slide b212 and slides laterally with the slide b212. The sliding range of the slide a205 and the slide b212 can be constrained by limiting block a202 and limiting block b203 to ensure the precise engagement of the breaking tooth a206 and the breaking tooth b213.
[0038] A guide groove 207 is provided on the side of the carriage a205. An eccentric disk 209 is rotatably provided on the top of the connecting plate 201. The eccentric disk 209 is slidably connected to the guide groove 207. A motor 210 is provided on the side of the connecting plate 201. The output end of the motor 210 is connected to the eccentric disk 209.
[0039] The eccentric disk 209 can be driven to rotate by the motor 210, and the eccentric disk 209 drives the carriage a205 to slide back and forth through the guide groove 207.
[0040] Two sets of breaking teeth a206 are arranged, with sharp corners at both ends of the breaking teeth a206. Two sets of breaking teeth b213 are also arranged, with sharp corners at both ends of the breaking teeth b213.
[0041] The double-row crushing teeth and the sharp angle design of the crushing teeth can enhance the penetration of agglomerated materials and improve crushing efficiency.
[0042] A transmission gear 211 is rotatably mounted on the top of the connecting plate 201, and a rack a208 is mounted on the side of the slide a205. The rack a208 is meshed with the transmission gear 211, so that when the slide a205 moves the rack a208 laterally, it can drive the transmission gear 211 to rotate.
[0043] A rack b214 is provided on the side of the slide b212. The rack b214 is meshed with the transmission gear 211. After the slide a205 drives the transmission gear 211 to rotate, the transmission gear 211 drives the rack b214 to move, so that when the slide a205 moves, the slide b212 will move in the opposite direction of the slide a205.
[0044] The rack a208 is rotate symmetrical about the center of rotation of the transmission gear 211 with the rack b214. The symmetrical arrangement of rack a208 and rack b214 can make the displacement of carriage a205 and carriage b212 the same.
[0045] Example 3
[0046] Please see Figure 2 This embodiment provides another technical solution: a feeding bin, which further includes a feeding cylinder 3.
[0047] The feeding cylinder 3 is located at the bottom of the connecting plate 201. The inlet at the top of the feeding cylinder 3 is located at the bottom of the screen 204. The bottom of the feeding cylinder 3 is equipped with an outlet 301 and a sealing valve 302 that controls the opening and closing of the outlet 301. This allows the screened material to fall into the feeding cylinder 3 through the screen 204. The sealing valve 302 can control the opening and closing of the outlet 301 to achieve quantitative feeding or prevent material leakage.
[0048] Working principle: First, the starting motor 210 drives the eccentric disk 209 to rotate. The eccentric disk 209 drives the slide a205 to slide laterally back and forth through the guide groove 207. The slide a205 drives the transmission gear 211 to rotate through the rack a208, which in turn drives the rack b214 to move in the opposite direction, so that the slide b212 and the slide a205 move synchronously in opposite directions. During this process, the two sets of crushing teeth a206 and crushing teeth b213 periodically mesh and interlock to shear and crush the material agglomerates on the screen 204. The crushed material falls into the feeding cylinder 3 below through the screen 204. Finally, the opening and closing of the discharge port 301 is controlled by the sealing valve 302 to achieve quantitative feeding or sealing to prevent leakage. Through the above linkage mechanism, the device realizes the integrated operation of automatic crushing, screening and feeding, effectively solving the problem of screen blockage caused by powder agglomeration, while ensuring the accuracy and controllability of the feeding process.
[0049] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; 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 a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0050] 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 material-slugging grid with a crushing function, characterized in that, include: Rack (1); The screening section (2) is located on the top of the frame (1). The screening section (2) has a connecting plate (201) located on the top of the frame (1). A screen mesh (204) is provided on the top of the connecting plate (201). A slide a (205) and a slide b (212) are slidably arranged on the top of the connecting plate (201). A crushing tooth a (206) is provided inside the slide a (205). A crushing tooth b (213) is provided inside the slide b (212). The crushing tooth b (213) and the crushing tooth a (206) are arranged alternately. The lateral displacement of the slide a (205) and the crushing tooth a (206) drives the crushing tooth a (206) and the crushing tooth b (213) to move to crush the powder agglomerates.
2. The material-slugging grid with crushing function according to claim 1, characterized in that: The screening section (2) also has a limiting block a (202) and a limiting block b (203) disposed on the top of the connecting plate (201). The limiting block a (202) is embedded in the bottom of the slide a (205) and slides laterally with the slide a (205). The limiting block b (203) is embedded in the bottom of the slide b (212) and slides laterally with the slide b (212).
3. A material-slugging grid with a crushing function according to claim 1, characterized in that: The screening section (2) also has a guide groove (207) opened on the side of the slide a (205). An eccentric disk (209) is rotatably arranged on the top of the connecting plate (201). The eccentric disk (209) is slidably connected to the guide groove (207). A motor (210) is arranged on the side of the connecting plate (201). The output end of the motor (210) is connected to the eccentric disk (209).
4. A material-slugging grid with a crushing function according to claim 1, characterized in that: The breaking teeth a (206) are arranged in two sets, and the two ends of the breaking teeth a (206) are provided with sharp corners. The breaking teeth b (213) are arranged in two sets, and the two ends of the breaking teeth b (213) are provided with sharp corners.
5. A material-slugging grid with a crushing function according to claim 1, characterized in that: The screening section (2) also has a transmission gear (211) rotatably mounted on the top of the connecting plate (201), and a rack a (208) is provided on the side of the slide a (205), which meshes with the transmission gear (211).
6. A material-slugging grid with a crushing function according to claim 5, characterized in that: The screening section (2) also has a rack b (214) rotatably disposed on the side of the slide b (212), which meshes with the transmission gear (211).
7. A material-slugging grid with a crushing function according to claim 6, characterized in that: The rack a (208) is centrally rotationally symmetrical with the rack b (214) around the rotation center of the transmission gear (211).
8. A feeding hopper, characterized in that: The feeding hopper further includes: (The following is a description of the feeding hopper, which is described in any one of claims 1-7, and is not directly related to the preceding sentence.) Feeding cylinder (3) is located at the bottom of connecting plate (201). The feed inlet at the top of the feeding cylinder (3) is located at the bottom of the screen (204). The bottom of the feeding cylinder (3) is provided with discharge port (301) and sealing valve (302) for controlling the opening and closing of discharge port (301).