Screening device for magnetic shoe production

By using a sieving device that combines vibration and pneumatic jetting, the problem of magnetic powder agglomeration during the sieving process is solved, achieving efficient and accurate particle classification and ensuring particle integrity and surface quality.

CN224142774UActive Publication Date: 2026-04-21MAANSHAN XUFENG TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
MAANSHAN XUFENG TECHNOLOGY CO LTD
Filing Date
2025-03-28
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Magnetic powders are prone to agglomeration during the sieving process due to the interaction of magnetic dipoles, which affects the sieving effect.

Method used

The method combines vibration and pneumatic injection, using airflow nozzles to inject airflow into the screen frame to prevent magnetic particles from agglomerating and to avoid friction and wear through a non-contact approach.

Benefits of technology

It effectively prevents magnetic particles from agglomerating, improves screening efficiency and accuracy, protects particle integrity and surface quality, and is suitable for production scenarios with high requirements for particle morphology and surface quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a screening device for magnetic shoe production, and belongs to the technical field of magnetic shoe production. The screening device for magnetic shoe production comprises a rack and a screening frame, the screening frame is elastically installed at the upper end of the rack, the lower end of the screening frame is connected with a material frame, the upper end of the screening frame is detachably connected with a top cover, two pneumatic mechanisms are symmetrically arranged on the top cover, each pneumatic mechanism is of a hollow structure, and the pneumatic mechanisms jet airflow into the screening frame. The airflow is in a non-contact mode, and magnetic particles are prevented from being agglomerated. According to the screening device for magnetic shoe production, the problem that magnetic particles are prone to agglomeration in an existing screening device for magnetic shoe production is solved, when the screening device is used, the magnetic particles enter the screening frame from the feeding port, the vibration motor is started to drive the screening frame to vibrate, and small particles fall into the material frame through the screening holes; meanwhile, the air pump conveys airflow to the pneumatic mechanism through the air inlet pipe, the airflow is jetted in a non-contact mode through the airflow nozzle, particle aggregation is prevented, abrasion is avoided, and the screening effect and the particle integrity are improved.
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Description

Technical Field

[0001] This utility model relates to the field of magnetic tile production technology, specifically a screening device for magnetic tile production. Background Technology

[0002] In the early stages of magnetic tile production, a screening device is needed to screen the magnetic powder raw materials to ensure that the particle size of the powder meets the requirements of the subsequent molding process. However, due to its magnetic properties, the magnetic powder often agglomerates during screening.

[0003] The agglomeration phenomenon is caused by the fact that magnetic particles have magnetic moments. Under the influence of an external magnetic field or their own residual magnetism, magnetic dipole interactions will occur between the particles. This force will cause the particles to attract each other and form chain-like or clump-like structures, thus affecting the screening effect.

[0004] To address this issue, we propose a screening device for magnetic tile production that uses airflow combined with vibration to disperse particles, reducing powder agglomeration and effectively solving the aforementioned problems. Utility Model Content

[0005] The purpose of this invention is to provide a screening device for the production of magnetic tiles. By combining vibration and pneumatic spraying, it can effectively prevent the agglomeration of magnetic materials. The non-contact pneumatic spraying also ensures the integrity of the agglomerates, thereby improving screening efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a screening device for the production of magnetic tiles, comprising a frame and a screen frame, the screen frame being flexibly mounted on the upper end of the frame, a material frame being connected to the lower end of the screen frame, and a top cover being detachably connected to the upper end of the screen frame, with two pneumatic mechanisms symmetrically arranged on the top cover, the pneumatic mechanisms being hollow structures, and the air outlet end of the pneumatic mechanisms facing the screen frame.

[0007] As a preferred technical solution, connecting blocks are fixedly connected to the left and right sides of the screen frame, and rubber springs are connected to the lower ends of the connecting blocks. The lower ends of the rubber springs are connected to the machine frame.

[0008] As a preferred technical solution, a vibration motor is fixedly installed on both the front and rear sides of the screen frame.

[0009] As a preferred technical solution, a number of sieve holes are opened on the bottom surface inside the sieve frame, and a filter screen is installed inside the sieve holes.

[0010] As a preferred technical solution, a feed inlet is provided at the center of the upper surface of the top cover.

[0011] As a preferred technical solution, an air inlet pipe leading to the interior is installed on the upper surface of the pneumatic mechanism, and the air inlet pipe is connected to an air pump through a hose.

[0012] As a preferred technical solution, several airflow nozzles are installed at the lower end of the pneumatic mechanism, with the nozzles pointing downwards.

[0013] As a preferred technical solution, a discharge port is provided at the center of the lower surface of the material frame for discharging the magnetic particles after screening.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] (1) A screening device for the production of magnetic tiles according to the present invention, wherein the pneumatic mechanism sprays air into the screen frame in a non-contact manner through the airflow nozzle. The airflow acts on the surface of the magnetic particles with uniform and controllable force, effectively breaking the adsorption between the particles and preventing the magnetic particles from agglomerating due to mutual attraction during the screening process.

[0016] (2) The screening device for magnetic tile production of this utility model adopts non-contact air jet technology in the pneumatic mechanism. The air jet nozzle sprays uniform and controllable air into the screen frame, which completely avoids the physical wear of magnetic particles caused by friction, squeezing or collision in the traditional mechanical contact method. This non-contact design not only effectively protects the integrity and surface smoothness of the particles, but also avoids the breakage or deformation of the particles caused by mechanical contact during the screening process. It is particularly suitable for production scenarios with high requirements for particle shape and surface quality. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the entire utility model;

[0018] Figure 2 This is a schematic diagram of the entire utility model from another angle;

[0019] Figure 3 This is a schematic diagram of the sieve frame structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the pneumatic mechanism structure of this utility model.

[0021] In the diagram: 1. Frame; 2. Screen frame; 21. Connecting block; 211. Rubber spring; 22. Vibrating motor; 23. Screen hole; 24. Top cover; 241. Feed inlet; 242. Pneumatic mechanism; 2421. Air inlet pipe; 2422. Airflow nozzle; 3. Material frame; 31. Discharge port. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-4 A screening device for producing magnetic tiles includes a frame 1 and a screen frame 2. The screen frame 2 is elastically mounted on the upper end of the frame 1, and a material frame 3 is connected to the lower end of the screen frame 2. A top cover 24 is detachably connected to the upper end of the screen frame 2. Two pneumatic mechanisms 242 are symmetrically arranged on the top cover 24. The pneumatic mechanisms 242 are hollow structures, and the air outlet of the pneumatic mechanisms 242 faces the screen frame 2. In use, magnetic particles enter the screen frame 2 from the feed inlet 241. The vibration motor 22 is started to drive the screen frame 2 to vibrate, and smaller particles fall into the material frame 3 through the screen holes 23. At the same time, the air pump delivers airflow to the pneumatic mechanism 242 through the air inlet pipe 2421. The airflow is sprayed in a non-contact manner through the airflow nozzle 2422 to prevent particle agglomeration and avoid wear, thereby improving the screening effect and particle integrity.

[0024] Furthermore, connecting blocks 21 are fixedly connected to the left and right sides of the screen frame 2. A rubber spring 211 is connected to the lower end of the connecting block 21. The lower end of the rubber spring 211 is connected to the frame 1. In use, the screen frame 2 is elastically connected to the frame 1 through the connecting block 21 and the rubber spring 211, and can vibrate on the frame 1 to perform screening work.

[0025] Furthermore, a vibration motor 22 is fixedly installed on both the front and rear sides of the screen frame 2. When in use, the vibration motor 22 is started, and the vibration motor 22 generates vibration, which in turn drives the screen frame 2 to vibrate and screen continuously.

[0026] Furthermore, the bottom surface of the screen frame 2 is provided with several screen holes 23, and a filter screen is installed in the screen holes 23. During use, when the screen frame 2 is vibrating and screening, the smaller and finer magnetic particles inside it will pass through the screen holes 23 and be accurately filtered by the filter screen, and finally fall into the material frame 3 for storage, while the larger and coarser magnetic particles are retained inside the screen frame 2, thus achieving efficient and accurate particle classification.

[0027] Furthermore, a feed inlet 241 is provided at the center of the upper surface of the top cover 24. During use, the crushed and ground magnetic particles can be put in through the feed inlet 241 for subsequent screening.

[0028] Furthermore, an air inlet pipe 2421 leading to the interior of the pneumatic mechanism 242 is installed on the upper surface of the pneumatic mechanism 242. The air inlet pipe 2421 is connected to an air pump via a hose. During use, while the magnetic particles are being vibrated and screened, the air inlet pipe 2421 is connected to the air pump via the hose, and the air pump is started to input a stable and controllable airflow into the air inlet pipe 2421. The airflow enters the interior of the pneumatic mechanism 242 through the air inlet pipe 2421. After being optimized and distributed by the pneumatic mechanism 242, it is sprayed into the interior of the screen frame 2 with uniform and precise force through the airflow nozzle 2422. This airflow spray can effectively prevent particles from agglomerating due to mutual attraction during the screening process, and can also significantly improve screening efficiency and accuracy. At the same time, the non-contact airflow spray method avoids the friction, squeezing or collision caused to particles by traditional mechanical contact, ensuring the integrity and surface quality of the particles. It is particularly suitable for production scenarios with high requirements for particle morphology and performance.

[0029] Furthermore, several airflow nozzles 2422 are installed at the lower end of the pneumatic mechanism 242. The nozzles of the airflow nozzles 2422 face downwards. During use, the airflow inside the pneumatic mechanism 242 is sprayed through the airflow nozzles 2422 onto the magnetic particles being vibrated and screened. By spraying the magnetic particles in a non-contact manner, combined with vibration, the agglomeration of magnetic particles can be effectively prevented, improving the screening effect. At the same time, the non-contact method can effectively avoid wear on the magnetic particles and ensure the integrity of the particles.

[0030] Furthermore, a discharge port 31 is provided at the center of the lower surface of the material frame 3 for discharging the magnetic particles after screening. When in use, after screening is completed, the end cap at the discharge port 31 can be opened to remove the material, thereby completing the entire screening process.

[0031] Working Principle: This utility model discloses a screening device for magnetic tile production. In use, magnetic particles are evenly fed into the screen frame 2 through the feed inlet 241. Then, the vibration motor 22 is started, causing the screen frame 2 to vibrate continuously, efficiently screening the magnetic particles inside. During vibration, smaller, finer magnetic particles pass through the screen holes 23 and the filter screen, accurately falling into the material frame 3 for storage, while larger, coarser particles remain in the screen frame 2, achieving precise classification. Simultaneously, the air pump is started, delivering a stable airflow to the air inlet pipe 2421 through a hose. After passing through the pneumatic mechanism 242, the airflow is sprayed... The head 2422 sprays air into the inside of the screen frame 2 in a non-contact manner. This non-contact air jet technology not only effectively breaks the electrostatic adsorption and van der Waals forces between magnetic particles, preventing particles from agglomerating during the screening process and significantly improving screening efficiency and accuracy, but also avoids the friction, squeezing or collision caused to particles by traditional mechanical contact methods, ensuring the integrity and surface quality of the particles. Through the synergistic effect of vibrating screening and air jet, the device not only achieves efficient and accurate screening, but also maximizes the protection of the physical and chemical properties of magnetic particles, providing a reliable guarantee for high-quality production, thereby enriching the overall functionality.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A screening device for magnetic tile production, comprising a frame (1) and a sieve frame (2), the sieve frame (2) being elastically mounted on the upper end of the frame (1), and a material frame (3) being connected to the lower end of the sieve frame (2), characterized in that, The upper end of the sieve frame (2) is detachably connected to a top cover (24). Two pneumatic mechanisms (242) are symmetrically arranged on the top cover (24). The pneumatic mechanism (242) is a hollow structure, and the air outlet end of the pneumatic mechanism (242) faces the sieve frame (2).

2. The screening device for magnetic tile production according to claim 1, characterized in that: The screen frame (2) is fixedly connected to the left and right sides with connecting blocks (21), and the lower end of the connecting block (21) is connected to a rubber spring (211). The lower end of the rubber spring (211) is connected to the frame (1).

3. The screening device for magnetic tile production according to claim 2, characterized in that: Vibration motors (22) are fixedly installed on the front and back sides of the sieve frame (2).

4. The screening device for magnetic tile production according to claim 3, characterized in that: The bottom surface of the sieve frame (2) has several sieve holes (23), and a filter screen is installed in the sieve holes (23).

5. The screening device for magnetic tile production according to claim 4, characterized in that: A feed inlet (241) is provided at the center of the upper surface of the top cover (24).

6. The screening device for magnetic tile production according to claim 1, characterized in that: The upper surface of the pneumatic mechanism (242) is equipped with an air inlet pipe (2421) leading to its interior, and the air inlet pipe (2421) is connected to the air pump via a hose.

7. The screening device for magnetic tile production according to claim 6, characterized in that: Several airflow nozzles (2422) are installed at the lower end of the pneumatic mechanism (242), with the nozzles (2422) pointing downwards.

8. The screening device for magnetic tile production according to claim 7, characterized in that: The lower surface of the material frame (3) has a discharge port (31) at the center for discharging the magnetic particles after screening.