Protective device for ferrite core grinding machine machining
By combining electrostatic adsorption and electromagnetic interception with negative pressure suction, a three-level protection design is used to solve the problem of dust diffusion during grinding, achieving efficient dust removal and material protection. This protective device is suitable for ferrite core grinding machines.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-04-10
AI Technical Summary
When conventional grinding machines process ferrite cores, dust diffusion is severe. Existing dust removal equipment is difficult to effectively separate magnetic and non-magnetic dust, and water-based cooling easily leads to material oxidation. The escape rate of negative pressure suction systems is high, which affects processing efficiency and product yield.
It adopts a three-level protection design of electrostatic adsorption, electromagnetic interception and negative pressure suction. Combined with the main control system to adjust the voltage of the electrostatic plate and the magnetic field strength of the electromagnet, the working mode is switched for different processing stages. The electrostatic plate captures non-magnetic dust, the electromagnet adsorbs magnetic debris, and the dust is removed in a directional manner by negative pressure airflow.
It achieves efficient separation and removal of dust, reduces the emission rate, avoids material oxidation, reduces the load on the negative pressure system, is suitable for upgrading existing grinding machines, and has green manufacturing characteristics.
Smart Images

Figure CN224102607U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of grinder dust removal, especially relates to a protection device for ferrite core grinder processing. BACKGROUND
[0002] As the core component of high-frequency electronic elements, the processing precision of ferrite core directly affects the electromagnetic performance of the device. During the conventional grinder processing, tiny dust diffusion is easily generated by high-speed grinding, and the magnetic debris and non-metallic abrasive particles are mixed and suspended. The conventional dust removal equipment cannot effectively separate them.
[0003] In the prior art, water mist dust removal or negative pressure suction scheme is used. However, water-based cooling can easily cause oxidation and deterioration of ferrite material, and the negative pressure suction system has problems such as high escape rate of fine dust and frequent filter screen blockage, which seriously restricts the processing efficiency and product yield. UTILITY MODEL CONTENTS
[0004] The utility model discloses a protection device for ferrite core grinder processing, which can effectively solve the problems of tiny dust diffusion and poor dust adsorption effect of common grinders.
[0005] The utility model discloses a protection device for ferrite core grinder processing, which can effectively solve the problems of tiny dust diffusion and poor dust adsorption effect of common grinders.
[0006] The electromagnetic adsorption assembly comprises an arc-shaped mounting plate, the arc-shaped mounting plate is connected with the grinder through screws at both ends, a plurality of columnar electromagnets are inserted into the arc-shaped mounting plate and fixed through screws, the columnar electromagnets are electrically connected with the main control of the grinder, and the plurality of columnar electromagnets are arranged in an arc line array.
[0007] Further, an installation groove is arranged on the inner wall of the grinder cabin, the electrostatic plate is embedded in the inner side of the installation groove and fixed through screws, and the electrostatic plate is electrically connected with the main control of the grinder.
[0008] Further, the inner side surface of the columnar electromagnet is flush with the inner side surface of the electrostatic plate, the electrostatic plate is an annular plate-shaped body, and the part close to the opening of the grinder cabin is in a non-communicating state.
[0009] Further, a fine mesh net is mounted on the inner side of one end of the square pipe, and the other end of the square pipe is connected with an external fan.
[0010] The utility model discloses a protection device for ferrite core grinder processing, which can effectively solve the problems of tiny dust diffusion and poor dust adsorption effect of common grinders.
[0011] 1、The utility model scheme, through electrostatic adsorption, electromagnetic interception and negative pressure suction three -level protection design, the dust produced in the processing process is handled: the magnetic ferrite scrap is high -efficiently adsorbed by the electromagnetic assembly, the non -magnetic charged dust is captured by the static plate, and the residual particles are removed by the directional negative pressure airflow, and the dust dispersion rate is significantly reduced by grading treatment, and the load of the negative pressure system is reduced;
[0012] 2、The utility model scheme, through the main control system linkage adjustment static plate voltage and electromagnet magnetic field intensity, can switch the working mode for the rough grinding and the fine grinding stage, enhances the electromagnetic adsorption when rough grinding, and enhances the static field intensity when fine grinding, realizes dynamic optimization, and the negative pressure airflow only starts in the processing gap or after ending, avoids airflow interference grinding accuracy, and ensures that the dust is thoroughly removed at the same time;
[0013] 3、The utility model scheme, the dry dust removal scheme does not need to wash, completely avoids the risk of ferrite core oxidation by water, and there is no waste water treatment cost;The repeated use characteristics of electrostatic and electromagnetic adsorption assembly reduce the consumption of consumables, cooperate with the external recyclable dust collection box, meet the green manufacturing requirement;The device structure is compact, the transformation cost is low, is suitable for the upgrading of the existing bench grinder, has high popularization value. DRAWINGS
[0014] Fig. 1 It is the structure schematic diagram of the utility model;
[0015] Fig. 2 It is the local structure schematic diagram of the utility model grinding cabin;
[0016] Fig. 3 It is the structure schematic diagram of the utility model electromagnetic adsorption assembly.
[0017] In the drawing: 1-grinding cabin, 2-grinding wheel, 3-static plate, 4-electromagnetic adsorption assembly, 5-square tube;
[0018] 11-mounting groove, 41-arc-shaped mounting plate, 42-cylindrical electromagnet. DETAILED DESCRIPTION
[0019] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.
[0020] Combined Figs. 1 to 3The utility model provides an iron core grinder processing protection device, including grinder, grinder includes motor and the two sides of grinder cabin 1, is rotatoryly equipped with grinding wheel 2 in the inside of grinder cabin 1, grinding wheel 2 is connected with motor output end, is equipped with static plate 3 on the inside wall of both sides of grinder cabin 1, is equipped with electromagnetic adsorption subassembly 4 in the both sides of the opening of grinder cabin 1, is connected with square tube 5 in the relative position of the opening of the other side of grinder cabin 1.
[0021] Wherein, the inside wall of grinder cabin 1 is provided with mounting groove 11, the static plate 3 is embedded in the inside of mounting groove 11 and is fixed by screw, the static plate 3 is electrically connected with the main control of grinder, the static plate 3 is connected with external high-voltage power supply, for adsorbing charged dust generated by grinding.
[0022] The electromagnetic adsorption subassembly 4 includes arc-shaped mounting plate 41, the arc-shaped mounting plate 41 is connected with grinder cabin 1 by screw at both ends, a plurality of cylindrical electromagnets 42 are inserted into the inside of arc-shaped mounting plate 41 and are fixed by screw, the cylindrical electromagnets 42 are electrically connected with the main control of grinder, the plurality of cylindrical electromagnets 42 are arranged in arc line array, the electromagnetic adsorption subassembly 4 is used for adsorbing iron oxide debris generated in the grinding process to prevent it from escaping from the opening of grinder cabin.
[0023] The inside surface of cylindrical electromagnet 42 is flush with the inside surface of static plate 3, the static plate 3 is annular plate body, and the part close to the opening of grinder cabin 1 is in non-communicating state.
[0024] The square tube 5 is installed with a fine mesh screen at one end, the other end of square tube 5 is connected with external fan, the pore size of fine mesh screen is 0.1-1mm, for intercepting particles with particle size greater than 50μm, the square tube 5 is connected with negative pressure fan, and the dust is discharged after the magnetic core is filtered through the fine mesh screen.
[0025] Working principle: during use, when the magnetic core is placed in grinder cabin 1 for processing, the static plate 3 on both sides of the inner wall of grinder cabin 1 forms an electrostatic field after being electrified, so that the dust generated by grinding is charged and adsorbed to the surface of the static plate, the electromagnetic adsorption subassembly 4 at the opening generates a magnetic field after being electrified, so that larger particles are adsorbed to the surface of cylindrical electromagnet 42 to prevent them from flying out of the grinder cabin, the strength and start-stop of the electrostatic field and the magnetic field are controlled by the main control, the square tube 5 is connected with external fan, after processing is completed, the main control stops the static plate 3 and the electromagnetic adsorption subassembly 4 and starts the fan to form a negative pressure airflow in the grinder cabin 1, and the dust is sucked to the external dust collection box through the pipeline through the fine mesh screen.
[0026] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, the scope of the present application being defined by the claims appended hereto rather than by the above description, and all the changes which fall within the meaning and the scope of the equivalent elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.
[0027] Furthermore, it should be understood that although the present specification describes exemplary embodiments, not every embodiment contains only one independent technical solution, and the present specification is described in this way only for the sake of clarity, and a person skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that a person skilled in the art can understand.
Claims
1. A ferrite core grinder processing protection device, comprising a grinder, the grinder comprising a motor and a grinding cabin (1) on both sides of the motor, a grinding wheel (2) is rotatably arranged in the inside of the grinding cabin (1), and the grinding wheel (2) is connected with the output end of the motor, characterized in that: The grinding cabin (1) is provided with electrostatic plates (3) on the inner walls of both sides, and is provided with electromagnetic adsorption assemblies (4) on both sides of the opening of the grinding cabin (1), and is provided with square tubes (5) at the opposite positions on the other side of the opening. The electromagnetic adsorption assembly (4) comprises an arc-shaped mounting plate (41), the arc-shaped mounting plate (41) is connected with the grinding cabin (1) through screws at both ends, a plurality of columnar electromagnets (42) are inserted into the arc-shaped mounting plate (41) and are fixed through screws, the columnar electromagnets (42) are electrically connected with the main control of the grinding machine, and the columnar electromagnets (42) are arranged in an arc line array.
2. A ferrite core grinder processing protection device according to claim 1, characterized in that: The inner wall of the grinding cabin (1) is provided with a mounting groove (11), the electrostatic plate (3) is embedded in the inner side of the mounting groove (11) and is fixed through screws, and the electrostatic plate (3) is electrically connected with the main control of the grinding machine.
3. A ferrite core grinder processing protection device according to claim 2, characterized in that: The inner side surface of the columnar electromagnet (42) is flush with the inner side surface of the electrostatic plate (3), the electrostatic plate (3) is an annular plate-shaped body, and the part close to the opening of the grinding cabin (1) is in a non-communicating state.
4. The ferrite core grinder processing protection device according to claim 3, characterized in that: The square tube (5) is provided with a fine mesh at one end, and the other end is connected with an external fan.