Screening mechanism for large particles of powdery chemical raw materials
By designing a powdered chemical raw material screening mechanism that includes a housing, filter screen, motor, and cam, the problem of low screening efficiency for large particles of powdered chemical raw materials is solved, achieving efficient screening and convenient cleaning, making it suitable for large-scale production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-25
- Publication Date
- 2026-03-31
AI Technical Summary
Large particle screening of powdered chemical raw materials is inefficient and inconvenient to operate. Manual screening is labor-intensive and cannot meet the needs of large-scale industrial production, and it also poses health hazards.
A screening mechanism including a housing, a filter screen, a motor, a cam, and a connecting rod is designed. The motor drives the cam to make the filter screen vibrate. Combined with the disassembly mechanism of the limiting plate and the threaded rod, efficient screening and convenient filter screen cleaning are achieved.
It achieves efficient screening of large particles, is suitable for large-scale production, reduces labor intensity, improves production efficiency, and ensures operational safety.
Smart Images

Figure CN224058010U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of powdered chemical raw material processing technology, specifically a large particle screening mechanism for powdered chemical raw materials. Background Technology
[0002] Powdered chemical raw materials refer to various chemical substances in powder form, widely used in chemical, pharmaceutical, food, and materials industries. They are characterized by fine particles and large specific surface areas, allowing for thorough contact and reaction with various substances, which is beneficial for chemical synthesis and pharmaceutical preparation processes. In terms of appearance, powdered chemical raw materials come in a variety of colors and shapes; some are fine and uniform, while others are slightly coarse. Regarding physical properties, their flowability is affected by particle shape, size, and humidity; high humidity can easily lead to clumping, affecting their use. Chemically, their stability varies depending on the type, and some require specific storage conditions to prevent deterioration. Common powdered chemical raw materials include calcium carbonate and copper sulfate. In production, they require fine processing using specialized equipment, such as sieving to remove large particles and mixing to ensure uniformity, to meet the stringent standards and usage requirements of different industries.
[0003] Screening large particles of powdered chemical raw materials presents numerous inconveniences. Manual screening is extremely inefficient, requiring a large workforce and prolonged operation, and is physically demanding. Workers are prone to fatigue from repetitive screening actions, making it difficult to guarantee screening accuracy. Furthermore, manual screening struggles to precisely control particle size and speed, affecting the stability of screening results. In addition, for some toxic or irritating powdered chemical raw materials, manual screening can harm the health of operators. Moreover, the limited capacity of manual screening cannot meet the demands of large-scale industrial production, severely hindering the improvement of production efficiency. Utility Model Content
[0004] The purpose of this invention is to provide a screening mechanism for large particles of powdered chemical raw materials, which solves the problem of inconvenience in screening large particles of powdered chemical raw materials.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a large particle screening mechanism for powdered chemical raw materials, comprising a base, a fixed plate contacting the right side of the base, a support plate fixedly connected to the right side of the fixed plate, a housing fixedly connected to the upper end of the support plate, a mounting seat contacting the outer side of the housing, a filter screen fixedly connected to the side of the mounting seat near the housing, the filter screen being slidably connected to the housing, a limit frame fixedly connected inside the base, a connecting rod fixedly connected to the left side of the fixed plate near the base, a connecting plate fixedly connected to the left side of the connecting rod, a motor fixedly mounted at the upper end of the base, the output end of the motor being rotatably connected to the base, a cam fixedly connected to the output end of the motor, a spring provided on the outer side of the limit frame, and a disassembly mechanism provided on the mounting seat.
[0006] Preferably, the connecting plate is slidably connected to the base and to the limiting frame. The design of the connecting plate allows the connecting rod to move.
[0007] Preferably, one end of the spring contacts the connecting plate, and the other end of the spring contacts the base. Through the design of the spring, the connecting plate can be driven to reset.
[0008] Preferably, the cam is rotatably connected to the base and contacts the connecting plate. Through the design of the cam, the filter screen can be shaken.
[0009] Preferably, the disassembly mechanism includes a limiting plate, the outer side of the mounting base contacts the limiting plate, the outer side of the base is fixedly connected to a limiting block, a sliding rod is fixedly connected to the side of the limiting plate near the mounting base, a slider is fixedly connected to the outer side of the sliding rod, the sliding rod is slidably connected to the mounting base, the slider is slidably connected to the mounting base, a fixing frame is fixedly connected inside the mounting base, the fixing frame contacts the limiting plate, the fixing frame contacts the sliding rod, the fixing frame is slidably connected to the slider, a threaded rod is rotatably connected inside the limiting plate, the threaded rod is threadedly connected to the mounting base, a knob is fixedly connected to the side of the threaded rod away from the knob, and the knob contacts the base. Through the design of the disassembly mechanism, the filter screen can be easily disassembled and cleaned.
[0010] Preferably, the limiting plate is in contact with the base, and the limiting plate is slidably connected to the limiting block. Through the design of the limiting plate, the mounting base can be limited.
[0011] Preferably, a retaining ring is fixedly connected to the outer side of the threaded rod. The retaining ring is rotatably connected to the mounting base and contacts the limiting plate. Through the design of the retaining ring, the threaded rod can be limited.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] 1. This utility model is equipped with a housing and a filter screen, which can screen powdered chemical raw materials. At the same time, it is equipped with components such as a motor, cam, and connecting rod. The motor drives the cam to rotate, and the cam drives the housing to shake through the connecting rod, which in turn makes the filter screen shake synchronously. The shaking of the filter screen can effectively improve the screening effect and quickly separate large particles. This structure solves the problems of low efficiency and inconvenient operation when screening large particles of powdered chemical raw materials in traditional methods, realizing efficient and convenient screening operations, and is suitable for large-scale production scenarios.
[0014] 2. This utility model includes components such as a limiting plate, a limiting block, and a threaded rod. During operation, rotating the threaded rod causes a threaded motion between the threaded rod and the mounting base, driving the limiting plate to slide downwards along the limiting block, thus releasing the filter screen from its limiting position. This ingenious design achieves convenient disassembly of the filter screen. In this way, when the filter screen needs cleaning, the operator can easily remove it and quickly complete the cleaning work, thereby ensuring the screening effect of the filter screen and improving overall work efficiency. Attached Figure Description
[0015] Figure 1 This is a perspective view of the overall structure of this utility model;
[0016] Figure 2 For the present utility model Figure 1 A three-dimensional view of the local structure;
[0017] Figure 3 For the present utility model Figure 1 A front sectional view;
[0018] Figure 4 For the present utility model Figure 3 Enlarged view of part A of the structure.
[0019] In the diagram: 1. Base; 2. Fixing plate; 21. Support plate; 3. Box body; 4. Mounting seat; 41. Filter screen; 5. Limiting frame; 51. Connecting rod; 52. Connecting plate; 53. Motor; 54. Cam; 55. Spring; 6. Disassembly mechanism; 61. Limiting plate; 62. Limiting block; 63. Sliding rod; 64. Sliding block; 65. Fixing frame; 66. Threaded rod; 67. Retaining ring; 68. Knob. Detailed Implementation
[0020] 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.
[0021] Please see Figure 1-4A large particle screening mechanism for powdered chemical raw materials includes a base 1, a fixing plate 2 in contact with the right side of the base 1, a support plate 21 fixedly connected to the right side of the fixing plate 2, a box 3 fixedly connected to the upper end of the support plate 21, a mounting seat 4 in contact with the outer side of the box 3, a filter screen 41 fixedly connected to the side of the mounting seat 4 near the box 3, the filter screen 41 being slidably connected to the box 3, a limit frame 5 fixedly connected inside the base 1, a connecting rod 51 fixedly connected to the left side of the fixing plate 2 near the base 1, a connecting plate 52 fixedly connected to the left side of the connecting rod 51, the connecting plate 52 being slidably connected to the base 1, and the connecting plate 52 being slidably connected to the limit frame 5. Through the design of the connecting plate 52, the connecting rod 51 can be moved.
[0022] Please see Figure 2-4 A motor 53 is fixedly installed on the upper end of the base 1. The output end of the motor 53 is rotatably connected to the base 1. A cam 54 is fixedly connected to the output end of the motor 53. The cam 54 is rotatably connected to the base 1 and contacts the connecting plate 52. Through the design of the cam 54, the filter screen 41 can be shaken. A spring 55 is provided on the outer side of the limit frame 5. One end of the spring 55 contacts the connecting plate 52, and the other end of the spring 55 contacts the base 1. Through the design of the spring 55, the connecting plate 52 can be reset. A disassembly mechanism 6 is provided on the mounting base 4.
[0023] Please see Figure 2-4 The disassembly mechanism 6 includes a limiting plate 61. The outer side of the mounting base 4 contacts the limiting plate 61, and the outer side of the base 1 is fixedly connected to a limiting block 62. The limiting plate 61 contacts the base 1, and the limiting plate 61 and the limiting block 62 are slidably connected. Through the design of the limiting plate 61, the mounting base 4 can be limited. A sliding rod 63 is fixedly connected to the side of the limiting plate 61 near the mounting base 4, and a slider 64 is fixedly connected to the outer side of the sliding rod 63. The sliding rod 63 is slidably connected to the mounting base 4, and the slider 64 is slidably connected to the mounting base 4. A fixing frame 65 is fixedly connected inside the mounting base 4, and the fixing frame 65 is connected to the limiting plate 61. The fixed bracket 65 contacts the slide rod 63, and the fixed bracket 65 is slidably connected to the slider 64. The threaded rod 66 is rotatably connected inside the limiting plate 61. The threaded rod 66 is threadedly connected to the mounting base 4. The retaining ring 67 is fixedly connected to the outside of the threaded rod 66. The retaining ring 67 is rotatably connected to the mounting base 4 and contacts the limiting plate 61. The design of the retaining ring 67 can limit the threaded rod 66. The knob 68 is fixedly connected to the side of the threaded rod 66 away from the knob 68. The knob 68 contacts the base 1. The design of the disassembly mechanism 6 makes it easy to disassemble and clean the filter screen 41.
[0024] The specific implementation process of this utility model is as follows: When in use, by starting the motor 53, the output end of the motor 53 drives the cam 54 to rotate, the cam 54 drives the connecting plate 52 to move, the connecting plate 52 drives the connecting rod 51 to move, the connecting rod 51 drives the support plate 21 to move through the fixed plate 2, the support plate 21 drives the box 3 and the filter screen 41 inside the box 3 to move, and then the raw material is poured into the box 3, so that the two filter screens 41 can filter and screen the large particles in the raw material;
[0025] By rotating the knob 68, the threaded rod 66 is rotated, causing the threaded rod 66 to move threadedly with the mounting base 4. This allows the threaded rod 66 to move within the mounting base 4, which in turn moves the limiting plate 61. The limiting plate 61 then slides off the limiting block 62, releasing the limiting effect on the mounting base 4. This allows the mounting base 4 to pull the filter screen 41 out of the housing 3, facilitating the disassembly and cleaning of the filter screen 41.
[0026] 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 powder chemical raw material large particle screening mechanism comprising a base (1), characterized in that: The right side of the base (1) is in contact with the fixed plate (2), the right side of the fixed plate (2) is fixedly connected with the supporting plate (21), the upper end of the supporting plate (21) is fixedly connected with the box (3), the outer side of the box (3) is in contact with the mounting seat (4), one side of the mounting seat (4) close to the box (3) is fixedly connected with the filter screen (41), the filter screen (41) is in sliding connection with the box (3), the inside of the base (1) is fixedly connected with the limiting frame (5), the left side of the fixed plate (2) close to the base (1) is fixedly connected with the connecting rod (51), the left side of the connecting rod (51) is fixedly connected with the connecting plate (52), the upper end of the base (1) is fixedly installed with the motor (53), the output end of the motor (53) is in rotary connection with the base (1), the output end of the motor (53) is fixedly connected with the cam (54), the outer side of the limiting frame (5) is provided with the spring (55), the mounting seat (4) is provided with the dismounting mechanism (6).
2. A powder chemical raw material large particle screening mechanism according to claim 1, characterized in that: The connecting plate (52) is in sliding connection with the base (1), and the connecting plate (52) is in sliding connection with the limiting frame (5).
3. A large particle screening mechanism for powdered chemical ingredients as claimed in claim 1, wherein: One end of the spring (55) is in contact with the connecting plate (52), and the other end of the spring (55) is in contact with the base (1).
4. A large particle screening mechanism for powdered chemical ingredients as claimed in claim 1, wherein: The cam (54) is in rotary connection with the base (1), and the cam (54) is in contact with the connecting plate (52).
5. A large particle screening mechanism for powdered chemical ingredients as claimed in claim 1, wherein: The dismounting mechanism (6) comprises a limiting plate (61), the outer side of the mounting seat (4) is in contact with the limiting plate (61), the outer side of the base (1) is fixedly connected with a limiting block (62), one side of the limiting plate (61) close to the mounting seat (4) is fixedly connected with a sliding rod (63), the outer side of the sliding rod (63) is fixedly connected with a sliding block (64), the sliding rod (63) is in sliding connection with the mounting seat (4), the sliding block (64) is in sliding connection with the mounting seat (4), the inside of the mounting seat (4) is fixedly connected with a fixing frame (65), the fixing frame (65) is in contact with the limiting plate (61), the fixing frame (65) is in contact with the sliding rod (63), the fixing frame (65) is in sliding connection with the sliding block (64), the inside of the limiting plate (61) is rotatably connected with a threaded rod (66), the threaded rod (66) is connected with the mounting seat (4) through threads, one side of the threaded rod (66) away from a rotary knob (68) is fixedly connected with the rotary knob (68), and the rotary knob (68) is in contact with the base (1).
6. A powder chemical raw material large particle screening mechanism according to claim 5, characterized in that: The limiting plate (61) is in contact with the base (1), and the limiting plate (61) is in sliding connection with the limiting block (62).
7. A powder chemical raw material large particle screening mechanism according to claim 5, characterized in that: The outer side of the threaded rod (66) is fixedly connected with a blocking ring (67), the blocking ring (67) is in rotary connection with the mounting seat (4), and the blocking ring (67) is in contact with the limiting plate (61).