An insulator glaze mixing and grinding device and process

Abstract

The present invention discloses an insulator glaze mixing and grinding device and process. The device includes a grinding disc assembly and a negative pressure assembly. The grinding disc assembly includes an upper grinding disc and a lower grinding disc. The lower surface of the upper grinding disc and the upper surface of the lower grinding disc are both provided with grinding coatings and are both provided with a plurality of screening through holes. The negative pressure assembly includes an upper negative pressure chamber and a lower negative pressure chamber. The upper negative pressure chamber sucks the ground glaze powder particles from the screening through holes of the upper grinding disc into the upper negative pressure chamber through negative pressure suction. The lower negative pressure chamber sucks the ground glaze powder particles from the screening through holes of the lower grinding disc into the lower negative pressure chamber through negative pressure suction. The upper negative pressure chamber and the lower negative pressure chamber work alternately. When the upper negative pressure chamber sucks the glaze powder particles through negative pressure suction, it sucks and removes the glaze particles blocked at the entrance of the screening through holes of the lower grinding disc. When the lower negative pressure chamber sucks the glaze powder particles through negative pressure suction, it sucks and removes the glaze particles blocked at the entrance of the screening through holes of the upper grinding disc.

Description

Technical Field

[0001] The present invention relates to the technical field of insulator production, and more specifically, to an insulator glaze mixing and grinding device and process. Background Art

[0002] Glaze particle grinding is a key step in ceramic production. The purpose is to crush and uniformly mix glaze raw materials such as quartz, feldspar, and clay to form a fine glaze powder. The selection of grinding equipment directly affects the particle fineness, uniformity, and production efficiency of the glaze. In the production process of ceramic insulators, the glaze grinding process of ceramic insulators is a key process that mechanically grinds and classifies the glaze raw materials of ceramic insulators to meet the fineness requirements and achieve uniform mixing. The importance of the glaze grinding process lies in that a uniform and fine glaze can improve the density of the glaze layer after high-temperature sintering, eliminate micro-defects, and enable the insulator surface to obtain excellent smoothness, mechanical strength, and weather resistance. This is directly related to the electrical insulation performance, pollution flashover resistance, and anti-aging characteristics of the insulator. Especially in high-voltage transmission lines, a fine grinding process can effectively prevent defects such as glaze cracks and bubbles, ensuring the long-term stable operation of power equipment in complex environments, and is an important technical basis for improving the safety and reliability of the power grid.

[0003] In the existing process production, this process usually uses equipment such as ball mills or air classifiers, and by controlling parameters such as grinding time, medium ratio, and rotation speed, to ensure that the glaze particle size meets the requirements. However, traditional equipment such as ball mills or air classifiers has problems of low screening efficiency, easy clogging, and high energy consumption. In view of this, the present invention provides an insulator glaze mixing and grinding device and process, which adopts a double grinding disc structure design with screening through holes, and uses a bidirectional variable negative pressure suction to screen the glaze powder particles during the glaze grinding process and reduce the harm of clogging.

[0004] The information disclosed in this background art section is only intended to enhance the overall understanding of the present invention and should not be regarded as an admission or any form of suggestion that this information constitutes prior art already known to those of ordinary skill in the art. Summary of the Invention

[0005] In order to solve the above technical problems, the object of the present invention is to provide an insulator glaze mixing and grinding device and process, which adopts a double grinding disc structure design with screening through holes, and uses a bidirectional variable negative pressure suction to screen the glaze powder particles during the glaze grinding process and reduce the harm of clogging.

[0006] To achieve the above object, on the one hand, the present invention provides an insulator glaze mixing and grinding device. In the technical solution of the present invention, the device includes a grinding disc assembly and a negative pressure assembly. The grinding disc assembly includes an upper grinding disc and a lower grinding disc. The glaze particles to be ground are placed on the upper surface of the lower grinding disc and are extruded and ground by the upper grinding disc and the lower grinding disc. The lower surface of the upper grinding disc and the upper surface of the lower grinding disc are both provided with grinding coatings and are both provided with a plurality of screening through holes; the negative pressure assembly includes an upper negative pressure chamber and a lower negative pressure chamber. The upper negative pressure chamber is located above the upper grinding disc, and the lower negative pressure chamber is located below the lower grinding disc. The upper negative pressure chamber sucks the ground glaze powder particles from the screening through holes of the upper grinding disc into the upper negative pressure chamber through negative pressure suction, and the lower negative pressure chamber sucks the ground glaze powder particles from the screening through holes of the lower grinding disc into the lower negative pressure chamber through negative pressure suction; the upper negative pressure chamber and the lower negative pressure chamber work alternately. While the upper negative pressure chamber sucks the glaze powder particles through negative pressure suction, it sucks and removes the glaze particles blocked at the entrance of the screening through holes of the lower grinding disc. While the lower negative pressure chamber sucks the glaze powder particles through negative pressure suction, it sucks and removes the glaze particles blocked at the entrance of the screening through holes of the upper grinding disc.

[0007] Further, in the technical solution of the present invention, the negative pressure assembly further includes a negative pressure pipe, an electric control valve and a negative pressure driving motor. The negative pressure pipe includes an upper negative pressure pipe and a lower negative pressure pipe. The upper negative pressure pipe communicates with the upper negative pressure chamber, and the lower negative pressure pipe communicates with the lower negative pressure chamber; the electric control valve is respectively connected to the upper negative pressure pipe and the lower negative pressure pipe to control the conduction of the upper negative pressure pipe and the lower negative pressure pipe; the negative pressure driving motor is installed at the other end of the negative pressure pipe to provide negative pressure suction.

[0008] Further, in the technical solution of the present invention, it further includes a grinding chamber and a collecting bin. The grinding disc assembly is installed inside the grinding chamber. The upper grinding disc and the lower grinding disc are both in sliding contact with the inner wall of the grinding chamber. One side of the grinding chamber is provided with a feeding port and is equipped with an isolation door. The other side of the grinding chamber is provided with an air inlet and a first isolation net is installed at the air inlet; the collecting bin is slidably installed between the negative pressure pipe and the negative pressure driving motor, and a second isolation net is installed between the collecting bin and the negative pressure driving motor. The glaze powder particles in the upper negative pressure chamber and the lower negative pressure chamber further enter the collecting bin through the negative pressure pipe under the action of negative pressure suction.

[0009] Further, in the technical solution of the present invention, it further includes a rotation driving motor, a telescopic driving motor and a control module. The output end of the rotation driving motor is connected to the upper grinding disc to control its rotation; the output end of the telescopic driving motor is connected to the lower grinding disc to control its up and down movement; the control module is used to control the operation of the negative pressure driving motor, the rotation driving motor, the telescopic driving motor and the electric control valve.

[0010] Further, in the technical solution of the present invention, a pressure sensor is further provided inside the upper surface of the lower grinding disc.

[0011] On the other hand, the present invention also provides an insulator glaze mixing and grinding process, which adopts an insulator glaze mixing and grinding device according to the above description, and specifically includes the following steps:

[0012] S1. Feeding: Open the isolation door at the feeding port, put the glaze particles to be ground into the grinding chamber. At this time, the glaze particles to be ground are located on the upper surface of the lower grinding disc, close the isolation door, and install the aggregate bin.

[0013] S2. Grinding: Control the operation of the negative pressure driving motor, the rotation driving motor, the telescopic driving motor and the electric control valve through the control module:

[0014] The rotation driving motor drives the upper grinding disc to rotate, and the telescopic driving motor drives the lower grinding disc to move upward towards the upper grinding disc, so that the glaze particles to be ground on the upper surface of the lower grinding disc move to the upper grinding disc and are extruded and ground by the rotation of the upper grinding disc. When the lower grinding disc moves upward to extrude and grind the glaze particles to be ground, the negative pressure driving motor generates negative pressure suction, the electric control valve controls the lower negative pressure pipe to conduct, and the upper negative pressure pipe is closed. The ground glaze powder particles are sucked into the lower negative pressure chamber from the screening through holes of the lower grinding disc and further sucked into the aggregate bin through the lower negative pressure pipe. While the lower negative pressure chamber sucks the glaze powder particles through negative pressure suction, it sucks off the glaze particles blocked at the entrance of the screening through holes of the upper grinding disc;

[0015] The lower grinding disc moves upward to be extruded and ground by the upper grinding disc. The extrusion pressure during grinding is collected in real time through the pressure sensor. When the pressure reaches the threshold value, the telescopic driving motor drives the lower grinding disc to move downward and return to its original position. When the lower grinding disc moves downward and returns to its original position, the rotation driving motor drives the upper grinding disc to stop rotating, the negative pressure driving motor generates negative pressure suction, the electric control valve controls the upper negative pressure pipe to conduct, and the lower negative pressure pipe is closed. The ground glaze powder particles are sucked into the upper negative pressure chamber from the screening through holes of the upper grinding disc and further sucked into the aggregate bin through the upper negative pressure pipe. While the upper negative pressure chamber sucks the glaze powder particles through negative pressure suction, it sucks off the glaze particles blocked at the entrance of the screening through holes of the lower grinding disc;

[0016] After the lower grinding disc moves downward and returns to its original position, repeat the upward movement operation;

[0017] S3. Taking materials: Control the negative pressure driving motor, the rotation driving motor, the telescopic driving motor and the electric control valve to stop operating through the control module, and slide out the aggregate bin.

[0018] Effective gain: In summary, the present invention provides an insulator glaze mixing and grinding device and process. In the technical solution of the present invention, an upper and lower double grinding disc structure design with screening through-holes is adopted. The glaze particles to be ground are placed on the upper surface of the lower grinding disc and are extruded and ground by the upper grinding disc and the lower grinding disc. While performing the extrusion grinding, negative pressure suction is used to screen the glaze powder particles during the glaze grinding process. The qualified-sized glaze powder particles are sucked through the screening through-holes in the double grinding disc structure, effectively improving the screening efficiency. At the same time, in the specific work of the present invention, an intermittent working form of two-way suction is adopted. While the upper negative pressure chamber sucks in the glaze powder particles through negative pressure suction, it can suck off the glaze particles blocking at the entrance of the screening through-holes of the lower grinding disc. While the lower negative pressure chamber sucks in the glaze powder particles through negative pressure suction, it can suck off the glaze particles blocking at the entrance of the screening through-holes of the upper grinding disc, which can reduce the harm of blockage.

[0019] Other features and advantages of the present invention will be described in the subsequent description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0021] Figure 1 Schematic diagram of the overall structure of an insulator glaze mixing and grinding device of the present invention Figure 1 ;

[0022] Figure 2 Schematic diagram of the partial structure section of an insulator glaze mixing and grinding device of the present invention Figure 1 ;

[0023] Figure 3 Schematic diagram of the partial structure section of an insulator glaze mixing and grinding device of the present invention Figure 2 ;

[0024] Figure 4 Schematic diagram of the overall structure of an insulator glaze mixing and grinding device of the present invention Figure 2 ;

[0025] Figure 5 Schematic diagram of the overall structure of an insulator glaze mixing and grinding device of the present invention Figure 3 ;

[0026] In the figure: A, grinding disc assembly; A01, upper grinding disc; A02, lower grinding disc; A03, screening through-hole; B, negative pressure assembly; B01, upper negative pressure chamber; B02, lower negative pressure chamber; C, negative pressure pipe; C01, upper negative pressure pipe; C02, lower negative pressure pipe; D, electric control valve; E, negative pressure driving motor; F, grinding chamber; F01, isolation door; G, aggregate bin; H01, rotary driving motor; H02, telescopic driving motor. Detailed implementation manners

[0027] In order to make the objectives, features, and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the embodiments described below are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] The core of the embodiment of the present invention is to provide an insulator glaze mixing and grinding device and process. In this embodiment, a double grinding disc structure design with screening through-holes is adopted, and the glaze powder particles during the glaze grinding process are screened by bidirectional variable negative pressure suction to reduce the risk of blockage.

[0029] On the one hand, the embodiment of the present invention proposes an insulator glaze mixing and grinding device. Figure 2 and Figure 3It is a schematic cross-sectional view of a partial structure of an insulator glaze mixing and grinding device according to an embodiment of the present invention. As shown in the figure, an insulator glaze mixing and grinding device in this embodiment includes a grinding disc assembly A and a negative pressure assembly B. The grinding disc assembly A includes an upper grinding disc A01 and a lower grinding disc A02. The glaze particles to be ground are placed on the upper surface of the lower grinding disc A02 and are squeezed and ground by the upper grinding disc A01 and the lower grinding disc A02. Grinding coatings are provided on the lower surface of the upper grinding disc A01 and the upper surface of the lower grinding disc A02, and a plurality of screening through-holes A03 are formed. The negative pressure assembly B includes an upper negative pressure chamber B01 and a lower negative pressure chamber B02. The upper negative pressure chamber B01 is located above the upper grinding disc A01, and the lower negative pressure chamber B02 is located below the lower grinding disc A02. The upper negative pressure chamber B01 sucks the ground glaze powder particles from the screening through-holes A03 on the upper grinding disc A01 through negative pressure suction, and the lower negative pressure chamber B02 sucks the ground glaze powder particles from the screening through-holes A03 on the lower grinding disc A02 through negative pressure suction. In this embodiment, negative pressure is generated by the upper negative pressure chamber B01 and the lower negative pressure chamber B02 to screen the glaze particles during the grinding process, that is, screening is performed through the screening through-holes A03 and negative pressure suction is used. By increasing negative pressure suction during the grinding process, the screening efficiency is improved. The upper negative pressure chamber B01 and the lower negative pressure chamber B02 work alternately. While the upper negative pressure chamber B01 sucks the glaze powder particles through negative pressure suction, it sucks and removes the glaze particles blocking the entrance of the screening through-holes A03 on the lower grinding disc A02. The upward acting force is beneficial to sucking off the blockage at the entrance of the screening through-holes A03 on the lower grinding disc A02. While the lower negative pressure chamber B02 sucks the glaze powder particles through negative pressure suction, it sucks and removes the glaze particles blocking the entrance of the screening through-holes A03 on the upper grinding disc A01. The downward acting force is beneficial to sucking off the blockage at the entrance of the screening through-holes A03 on the upper grinding disc A01.

[0030] In this embodiment, Figure 1 、 Figure 4 and Figure 5 Figure is a schematic diagram of the overall structure of an insulator glaze mixing and grinding device according to an embodiment of the present invention. As shown in the figure, the negative pressure assembly B further includes a negative pressure pipe C, an electric control valve D, and a negative pressure driving motor E. The negative pressure pipe C includes an upper negative pressure pipe C01 and a lower negative pressure pipe C02. The upper negative pressure pipe C01 communicates with the upper negative pressure chamber B01, and the lower negative pressure pipe C02 communicates with the lower negative pressure chamber B02. The electric control valve D is respectively connected to the upper negative pressure pipe C01 and the lower negative pressure pipe C02 to control the conduction of the upper negative pressure pipe C01 and the lower negative pressure pipe C02. The negative pressure driving motor E is installed at the other end of the negative pressure pipe C to provide negative pressure suction.

[0031] Specifically, please continue to refer to the attached drawings. In this embodiment, an insulator glaze mixing and grinding device further includes a grinding bin F and an aggregate bin G. The grinding disc assembly A is installed inside the grinding bin F. Both the upper grinding disc A01 and the lower grinding disc A02 are in sliding contact with the inner wall of the grinding bin F. A feeding port is provided on one side of the grinding bin F and an isolation door F01 is installed. An air inlet is provided on the other side of the grinding bin and an isolation net (not shown in the drawings) is installed at the air inlet; The aggregate bin G is slidably installed between the negative pressure pipe C and the negative pressure driving motor E, and an isolation net (not shown in the drawings) is installed between the aggregate bin G and the negative pressure driving motor E. The glaze powder particles in the upper negative pressure chamber B01 and the lower negative pressure chamber B02 further enter the aggregate bin G through the negative pressure pipe C under the action of negative pressure suction.

[0032] Specifically, please continue to refer to the attached drawings. In this embodiment, an insulator glaze mixing and grinding device further includes a rotation driving motor H01, a telescopic driving motor H02, and a control module. The output end of the rotation driving motor H01 is connected to the upper grinding disc A01 to control its rotation; The output end of the telescopic driving motor H02 is connected to the lower grinding disc A02 to control its up and down movement; The control module is used to control the operation of the negative pressure driving motor E, the rotation driving motor H01, the telescopic driving motor H02, and the electric control valve D.

[0033] Specifically, in this embodiment, a pressure sensor (not shown in the drawings) is further provided inside the upper surface of the lower grinding disc A02.

[0034] On the other hand, this embodiment also provides an insulator glaze mixing and grinding process, which uses an insulator glaze mixing and grinding device according to the above description, and specifically includes the following steps:

[0035] S1. Feeding: Open the isolation door F01 at the feeding port, put the glaze particles to be ground into the grinding bin F. At this time, the glaze particles to be ground are located on the upper surface of the lower grinding disc A02. Close the isolation door F01 and install the aggregate bin G.

[0036] S2. Grinding: Control the operation of the negative pressure driving motor E, the rotation driving motor H01, the telescopic driving motor H02, and the electric control valve D through the control module:

[0037] The rotation drive motor H01 drives the upper grinding disc A01 to rotate, and the telescopic drive motor H02 drives the lower grinding disc A02 to move upward towards the upper grinding disc A01, so that the glaze particles to be ground on the upper surface of the lower grinding disc A02 move towards the upper grinding disc A01 and are rotationally squeezed and ground through the upper grinding disc A01. When the lower grinding disc A02 moves upward to squeeze and grind the glaze particles to be ground, the negative pressure drive motor E generates a negative pressure suction force, and the electric control valve D controls the lower negative pressure pipe C02 to conduct, and the upper negative pressure pipe C01 is closed. The glaze particles to be ground are adsorbed on the surface of the lower grinding disc A02 by the downward negative pressure, which is beneficial for the upper grinding disc A01 to grind. The ground glaze powder particles are sucked into the lower negative pressure chamber B02 from the screening through hole A03 on the lower grinding disc A02 and further sucked into the aggregate bin G through the lower negative pressure pipe C02. While the lower negative pressure chamber B02 sucks the glaze powder particles by negative pressure suction, it sucks and removes the glaze particles blocking the entrance of the screening through hole A03 on the upper grinding disc A01;

[0038] The lower grinding disc A02 moves upward and is squeezed and ground through the upper grinding disc A01. The extrusion pressure during grinding is collected in real time by a pressure sensor. When the pressure reaches the threshold value, the telescopic drive motor H02 drives the lower grinding disc A02 to move downward to return to its original position. When the lower grinding disc A02 moves downward to return to its original position, the rotation drive motor H01 drives the upper grinding disc A01 to stop rotating. The negative pressure drive motor E generates a negative pressure suction force, and the electric control valve D controls the upper negative pressure pipe C01 to conduct, and the lower negative pressure pipe C02 is closed. The ground glaze powder particles are sucked into the upper negative pressure chamber B01 from the screening through hole A03 on the upper grinding disc A01 and further sucked into the aggregate bin G through the upper negative pressure pipe C01. While the upper negative pressure chamber B01 sucks the glaze powder particles by negative pressure suction, it sucks and removes the glaze particles blocking the entrance of the screening through hole A03 on the lower grinding disc A02;

[0039] After the lower grinding disc A02 moves downward and returns to its original position, the upward movement operation is repeated;

[0040] S3. Material taking: The negative pressure drive motor E, the rotation drive motor H01, the telescopic drive motor H02 and the electric control valve D are controlled by the control module to stop operating, and the aggregate bin G is slid out and taken.

[0041] The above shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only the preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An insulator glaze mixing and grinding device, characterized in that, Comprising: A grinding disc assembly, including an upper grinding disc and a lower grinding disc. The glaze particles to be ground are placed on the upper surface of the lower grinding disc and are subjected to extrusion grinding by the upper grinding disc and the lower grinding disc. Grinding coatings are provided on both the lower surface of the upper grinding disc and the upper surface of the lower grinding disc, and a plurality of screening through-holes are provided on both; A negative pressure assembly, including an upper negative pressure chamber and a lower negative pressure chamber. The upper negative pressure chamber is located above the upper grinding disc, and the lower negative pressure chamber is located below the lower grinding disc. The upper negative pressure chamber sucks the ground glaze powder particles from the screening through-holes of the upper grinding disc into the upper negative pressure chamber by negative pressure suction, and the lower negative pressure chamber sucks the ground glaze powder particles from the screening through-holes of the lower grinding disc into the lower negative pressure chamber by negative pressure suction; The upper negative pressure chamber and the lower negative pressure chamber operate at intervals. While the upper negative pressure chamber sucks the glaze powder particles by negative pressure suction, it sucks and removes the glaze particles blocked at the entrance of the screening through-holes of the lower grinding disc. While the lower negative pressure chamber sucks the glaze powder particles by negative pressure suction, it sucks and removes the glaze particles blocked at the entrance of the screening through-holes of the upper grinding disc.

2. The glaze mixing and grinding device for insulators according to claim 1, wherein The negative pressure assembly further includes: Negative pressure pipes, including an upper negative pressure pipe and a lower negative pressure pipe. The upper negative pressure pipe communicates with the upper negative pressure chamber, and the lower negative pressure pipe communicates with the lower negative pressure chamber; Electric control valves, respectively connected to the upper negative pressure pipe and the lower negative pressure pipe, to control the conduction of the upper negative pressure pipe and the lower negative pressure pipe; A negative pressure driving motor, installed at the other end of the negative pressure pipe, for providing negative pressure suction.

3. An insulator glaze mixing and grinding device according to claim 2, wherein, It further includes: A grinding chamber, the grinding disc assembly is installed inside the grinding chamber. Both the upper grinding disc and the lower grinding disc are in sliding contact with the inner wall of the grinding chamber. A feeding port is provided on one side of the grinding chamber and an isolation door is installed, and an air inlet is provided on the other side of the grinding chamber and a first isolation net is installed at the air inlet; An aggregate bin, slidably installed between the negative pressure pipe and the negative pressure driving motor, and a second isolation net is installed between the aggregate bin and the negative pressure driving motor. The glaze powder particles in the upper negative pressure chamber and the lower negative pressure chamber further enter the aggregate bin through the negative pressure pipe under the action of negative pressure suction.

4. An insulator glaze mixing and grinding device according to claim 3, characterized in that, It further includes: A rotation driving motor, the output end of which is connected to the upper grinding disc to control its rotation; A telescopic driving motor, the output end of which is connected to the lower grinding disc to control its up and down movement; A control module, controlling the operation of the negative pressure driving motor, the rotation driving motor, the telescopic driving motor, and the electric control valve.

5. An insulator glaze mixing and grinding device according to claim 4, characterized in that, A pressure sensor is further provided inside the upper surface of the lower grinding disc.

6. An insulator glaze mixing and grinding process, characterized in that, Adopting an insulator glaze mixing and grinding device according to claim 5, specifically including the following steps: S1. Feeding: Open the isolation door at the feeding port, put the glaze particles to be ground into the grinding chamber. At this time, the glaze particles to be ground are located on the upper surface of the lower grinding disc, close the isolation door, and install the aggregate bin; S2. Grinding: Control the operation of the negative pressure driving motor, the rotation driving motor, the telescopic driving motor, and the electric control valve through the control module: The rotary drive motor drives the upper grinding disc to rotate, and the telescopic drive motor drives the lower grinding disc to move up and up, so that the glaze particles to be ground on the upper surface of the lower grinding disc move to the upper grinding disc and are extruded and ground by the rotation of the upper grinding disc. When the lower grinding disc moves up to extrude and grind the glaze particles to be ground, the negative pressure drive motor generates negative pressure suction, the electric control valve controls the lower negative pressure pipe to be turned on, and the upper negative pressure pipe to be closed, and the ground glaze powder particles are sucked into the lower negative pressure chamber from the screening through hole of the lower grinding disc and further sucked into the collecting bin through the lower negative pressure pipe. The lower negative pressure chamber sucks in the glaze powder particles through the negative pressure suction force, and at the same time, the glaze particles blocked at the entrance of the screening through hole of the upper grinding disc are sucked out; The lower grinding disc moves upward to extrude and grind through the upper grinding disc, and the extrusion pressure of grinding is collected in real time through the pressure sensor. When the pressure reaches the threshold, the telescopic drive motor drives the lower grinding disc to move downward and return to its position. When the lower grinding disc moves downward and returns to its position, the rotary drive motor drives the upper grinding disc to stop rotating, and the negative pressure drive motor generates negative pressure suction. The electric control valve controls the upper negative pressure pipe to be turned on and the lower negative pressure pipe to be closed. The ground glaze powder particles are sucked into the upper negative pressure chamber from the screening through hole of the upper grinding disc and further sucked into the collecting bin through the upper negative pressure pipe. The upper negative pressure chamber sucks in the glaze powder particles through the negative pressure suction force, and at the same time, the glaze particles blocked at the entrance of the screening through hole of the lower grinding disc are sucked out. After the lower grinding disc is moved down and returned to its original position, repeat the upward movement operation; S3, material taking: The control module is used to control the negative pressure drive motor, the rotation drive motor, the telescopic drive motor and the electric control valve to stop running, and the material collecting bin is taken out by sliding.

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