Frit grinding device and method for preparing ceramic glaze

Abstract

The invention relates to the technical field of grinding instruments, in particular to a frit grinding device and method for ceramic glaze preparation. The frit grinding device comprises a base, a collecting box, a frit box, an exhaust fan conveying mechanism, a grinding mechanism and a screening mechanism, ground frit powder falls into a screening frame of the screening mechanism, a vibration motor is started, and the frit powder is conveyed to the collecting box; the frit powder is screened under high-frequency micro-amplitude vibration, coarse particle frits which do not pass through meshes of the screening frame are retained on the screening frame, and after an exhaust fan conveying mechanism and a grinding mechanism stop running, a pulling mechanism is started to drive a pulling plate to horizontally move in the direction, away from the frit box, of a mounting frame, so that the whole screening frame is located in the frit box, and the screening efficiency is improved. And the rotatable mounting seat is started to drive the screening frame to turn over, so that the coarse particle frits retained on the screening frame fall to the inner bottom of the frit box, the cleaning of the coarse particles retained on the screening frame is completed, and the recovery effect of the ground coarse particle frits is better.

Description

Technical Field

[0001] This invention relates to the field of grinding equipment technology, and in particular to a frit grinding device and method for preparing ceramic glazes. Background Technology

[0002] In the preparation of ceramic glazes, frit, as a core raw material, is a glassy solid formed by melting and rapidly cooling quartz, feldspar, metal oxides, and other formulated raw materials at high temperatures. The core function of the frit grinding device is to grind these hard and brittle frit particles into micron-sized fine powder, which is then used to uniformly mix with other glaze raw materials to form a glaze slurry with excellent suspension and stability, thus meeting the stringent requirements of subsequent glazing and firing processes.

[0003] Patent document CN212732358U discloses a frit grinding device for the preparation process of water-soluble ceramic glaze, including a base; a collection box is fixedly installed inside the base; a screen frame is movably installed on the inner side of the top of the base; a fixed rod is fixedly installed on the rear side of the screen frame; a rotatable movable rod is fixedly installed on the left end of the fixed rod via a rotating shaft; a rotatable wheel is fixedly installed on the left end of the movable rod via a rotating shaft, and the rear side of the wheel is fixedly installed on the rotating shaft of the screen frame motor; a housing is fixedly installed on the top of the base. The setup of the screen frame and the rotating wheel is beneficial to improving the grinding effect. The rotation of the screen frame motor drives the rocker arm structure, causing the screen frame to sway left and right, screening the ground frit. Larger particles will flow back to the frit box from the right side of the screen frame, and then re-enter the grinding funnel through the blower for secondary grinding, avoiding affecting the crystallization state and appearance of the ceramic after glazing and firing, thereby improving the quality of the ceramic.

[0004] However, in actual use, the existing frit grinding devices in the ceramic glaze preparation process only use an inclined screen frame to recover coarse particles, which is not ideal for recovering coarse particles. Summary of the Invention

[0005] The purpose of this invention is to provide a frit grinding device and method for preparing ceramic glazes, aiming to solve the technical problem that the existing frit grinding devices in the ceramic glaze preparation process only use an inclined screen frame to recover coarse particles, which is not ideal for the recovery of coarse particles.

[0006] To achieve the above objectives, the present invention provides a frit grinding device for preparing ceramic glaze, comprising a base, a collection box, a frit box, a blower conveying mechanism, a grinding mechanism, and a sieving mechanism. The grinding mechanism is installed at the top of the base, the collection box is provided at the inner bottom of the base, and the frit box is provided at the outer side of the base. The input end of the blower conveying mechanism is connected to the frit box, and the output end of the blower conveying mechanism is connected to the output end of the grinding mechanism. The screening mechanism includes a mounting frame, a pulling mechanism, a pulling plate, a rotatable mounting base, a rotating shaft, and a screening frame. A through groove is provided through the side wall of the base. The frit box is located outside the through groove. The screening frame is slidably installed in the through groove. Multiple vibration motors are provided on the screening frame. The mounting frame is provided on the side of the frit box away from the base. The pulling mechanism is provided at the end of the mounting frame away from the frit box. The pulling plate is provided at the output end of the pulling mechanism. The rotatable mounting base is provided on the side of the pulling plate facing the frit box. The rotating shaft is provided at the output end of the rotatable mounting base. The end of the rotating shaft away from the rotatable mounting base is located inside the frit box and connected to the side wall of the screening frame.

[0007] The screening frame includes a top frame, a screening mesh, a bottom frame, and a flexible connecting frame. The screening mesh is disposed inside the top frame, and the bottom frame is disposed below the top frame. The flexible connecting frame is installed between the inner sidewall of the top frame and the inner sidewall of the bottom frame. Multiple vibration motors are installed between the top frame and the bottom frame, and are all located outside the flexible connecting frame.

[0008] The pulling mechanism includes a limiting shaft, a drive assembly, a threaded rod, and a connecting bearing. The pulling plate is slidably disposed inside the mounting frame. The limiting shaft is rotatably disposed at the end of the mounting frame away from the frit box. The threaded rod is threadedly connected to the inside of the limiting shaft. The end of the threaded rod near the pulling plate is connected to the pulling plate through the connecting bearing. A transmission gear is disposed outside the limiting shaft. The drive assembly is also disposed at the end of the mounting frame away from the frit box. The output end of the drive assembly is mechanically driven by the transmission gear.

[0009] The drive assembly includes a servo motor, a gear reducer, and an output gear. The servo motor is mounted on the end of the mounting bracket away from the melting box. The output end of the servo motor is provided with the gear reducer, and the output end of the gear reducer is provided with the output gear, which meshes with the transmission gear.

[0010] The rotatable mounting base includes a base body, a rotating disk, and a rotating assembly. The base body is mounted on the side of the pull plate facing the melting box. The rotating disk is rotatably mounted on the side of the base body away from the pull plate. A transmission gear ring is provided on the side of the rotating disk located inside the base body. The rotating assembly is installed inside the base body, and the output end of the rotating assembly meshes with the transmission gear ring.

[0011] The rotating assembly includes a drive motor, an output shaft, and a drive gear. The drive motor is installed at the inner bottom of the base, and the output end of the drive motor is connected to the drive gear via the output shaft. The drive gear meshes with the transmission gear ring.

[0012] The ceramic glaze preparation frit grinding device further includes a protective shell, which is provided at the end of the mounting frame away from the frit box, and is located outside the output gear and the transmission gear.

[0013] The protective shell is provided with an injection tube, and a sealing plug is provided at the end of the injection tube away from the protective shell.

[0014] The present invention also provides a method for grinding frit for preparing ceramic glazes, applied to the frit grinding apparatus for preparing ceramic glazes as described above, comprising the following steps: The molten raw material is put into the molten box, and the exhaust fan conveying mechanism is started to quantitatively and continuously convey the molten raw material to the grinding mechanism for grinding. The ground frit powder falls into the screening frame of the screening mechanism. Multiple vibration motors on the screening frame are activated, causing the frit powder to be screened under high-frequency micro-amplitude vibration. Qualified powder that meets the fineness requirements passes through the mesh of the screening frame and falls into the collection box, completing the collection. Coarse molten material that fails to pass through the mesh of the screening frame remains on the screening frame. After a preset time, the exhaust fan conveying mechanism and the grinding mechanism stop operating, and the pulling mechanism is activated, which drives the pulling plate to move horizontally toward the mounting frame away from the molten material box. Then, through the rotating shaft, the screening frame is pulled to slide in the through groove until the screening frame is disengaged from the through groove and is located inside the molten material box. When the screening frame is inside the frit box, the rotatable mounting base is activated, causing the screening frame to flip, so that the coarse frit particles stuck on the screening frame fall to the bottom of the frit box. After the coarse molten material retained on the screening frame is cleaned, the rotatable mounting base and the pulling mechanism drive the screening frame to reset, and the exhaust fan conveying mechanism is started, so that the coarse molten material that has fallen back into the molten material box is sent back into the grinding mechanism for secondary grinding until its particle size is qualified.

[0015] This invention discloses a frit grinding apparatus and method for preparing ceramic glazes, comprising a base, a collection box, a frit box, a fan conveying mechanism, a grinding mechanism, and a sieving mechanism. The sieving mechanism includes a mounting frame, a pulling mechanism, a pulling plate, a rotatable mounting base, a rotating shaft, and a sieving frame. The ground frit powder falls into the sieving frame of the sieving mechanism. Multiple vibration motors on the sieving frame are activated, causing the frit powder to be sieved under high-frequency micro-amplitude vibration. Qualified powder meeting the fineness requirements passes through the mesh of the sieving frame, while powder that does not pass through the mesh is sieved. Coarse molten particles remain on the screening frame. After the exhaust fan conveying mechanism and the grinding mechanism stop operating, the pulling mechanism is activated, causing the pulling plate to move horizontally away from the molten metal box from the mounting frame. This positions the entire screening frame inside the molten metal box. The rotatable mounting base is then activated, causing the screening frame to flip, allowing the coarse molten particles remaining on the screening frame to fall to the bottom of the molten metal box. This completes the cleaning of the coarse particles remaining on the screening frame, resulting in better recycling of the ground coarse molten particles. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the frit grinding device for preparing ceramic glaze according to the first embodiment of the present invention.

[0018] Figure 2 This invention provides Figure 1 A magnified view of the local structure at point A.

[0019] Figure 3 This is a schematic diagram of the internal structure of the frit box in the first embodiment of the present invention.

[0020] Figure 4 This is a schematic diagram of the structure of the screening frame in the first embodiment of the present invention.

[0021] Figure 5 This is a schematic diagram of the disassembled structure of the rotatable mounting base in the first embodiment of the present invention.

[0022] Figure 6 This is a schematic diagram of the structure of the frit grinding device for preparing ceramic glaze according to the second embodiment of the present invention.

[0023] Figure 7 This invention provides Figure 6 A magnified view of the local structure at point B.

[0024] Figure 8 This is a flowchart of the steps of the frit grinding method for preparing ceramic glaze provided by the present invention.

[0025] 101-Base, 102-Collection box, 103-Fused block box, 104-Exhaust fan conveying mechanism, 105-Grinding mechanism, 106-Mounting bracket, 107-Pull plate, 108-Rotating shaft, 109-Top frame, 110-Screwing screen, 111-Bottom frame, 112-Flexible connecting frame, 113-Limiting rotating shaft, 114-Threaded rod, 115-Connecting bearing, 116-Servo motor, 117-Gear reducer, 118-Output gear, 119-Seat body, 120-Rotating disk, 121-Drive motor, 122-Output shaft, 123-Drive gear, 124-Through groove, 125-Vibration motor, 126-Transmission gear, 127-Transmission gear ring, 128-Limiting ring, 201-Protective shell, 202-Injection pipe, 203-Sealing plug. Detailed Implementation

[0026] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0027] First embodiment: Please see Figures 1 to 5 ,in Figure 1 This is a schematic diagram of the frit grinding apparatus for preparing ceramic glaze according to the first embodiment. Figure 2 yes Figure 1 A magnified view of the local structure at point A. Figure 3 This is a schematic diagram of the internal structure of the frit box in the first embodiment. Figure 4 This is a schematic diagram of the screening frame in the first embodiment. Figure 5 This is a schematic diagram of the disassembled structure of the rotatable mounting base in the first embodiment.

[0028] This invention provides a frit grinding device for preparing ceramic glazes: it includes a base 101, a collection box 102, a frit box 103, a fan conveying mechanism 104, a grinding mechanism 105, and a sieving mechanism. The sieving mechanism includes a mounting frame 106, a pulling mechanism, a pulling plate 107, a rotatable mounting base, a rotating shaft 108, and a sieving frame. The sieving frame includes a top frame 109, a sieving screen 110, a bottom frame 111, and a flexible connecting frame 112. The pulling mechanism includes a limiting rotating shaft 113, a driving assembly, a threaded rod 114, and a connecting bearing 115. The driving assembly includes a servo motor 116, a gear reducer 117, and an output gear 118. The rotatable mounting base includes a base body 119, a rotating disk 120, and a rotating assembly. The rotating assembly includes a drive motor 121, an output shaft 122, and a drive gear 123. The aforementioned solution addresses the problem that existing frit grinding devices in ceramic glaze preparation processes, which rely solely on inclined screen frames for coarse particle recovery, do not achieve satisfactory results. It is understood that the aforementioned solution can be applied to the structure of frit grinding devices in ceramic glaze preparation processes.

[0029] In this specific embodiment, the grinding mechanism 105 is installed at the top of the base 101, the collection box 102 is provided at the inner bottom of the base 101, and the frit box 103 is provided on the outer side of the base 101. The input end of the exhaust fan conveying mechanism 104 is connected to the frit box 103, and the output end of the exhaust fan conveying mechanism 104 is connected to the output end of the grinding mechanism 105. When the frit raw material is put into the frit box 103, the exhaust fan conveying mechanism 104 is started to quantitatively and continuously convey the frit raw material to the grinding mechanism 105 for grinding. The ground frit powder falls into the collection box 102, completing the collection.

[0030] A through groove 124 is provided through the side wall of the base 101. The frit box 103 is located outside the through groove 124. The screening frame is slidably installed in the through groove 124. Multiple vibration motors 125 are provided on the screening frame. The mounting bracket 106 is provided on the side of the frit box 103 away from the base 101. The pulling mechanism is provided at the end of the mounting bracket 106 away from the frit box 103. The output end of the pulling mechanism is provided with a pulling plate 107. The rotatable mounting seat is provided on the side of the pulling plate 107 facing the frit box 103. The output end of the rotatable mounting seat is provided with a rotating shaft 108. The end of the rotating shaft 108 away from the rotatable mounting seat is located inside the frit box 103 and connected to the side wall of the screening frame. The ground frit powder falls onto the screening frame. Within the screening frame of the mechanism, multiple vibration motors 125 on the screening frame are activated, causing the fused powder to be screened under high-frequency micro-amplitude vibration. Qualified powder that meets the fineness requirements passes through the mesh of the screening frame, while coarse fused powder that does not pass through the mesh remains on the screening frame. After the exhaust fan conveying mechanism 104 and the grinding mechanism 105 stop operating, the pulling mechanism is activated, driving the pulling plate 107 to move horizontally away from the fused powder box 103 towards the mounting frame 106, so that the entire screening frame is located inside the fused powder box 103. The rotatable mounting base is activated, causing the screening frame to flip, causing the coarse fused powder remaining on the screening frame to fall to the inner bottom of the fused powder box 103, thereby completing the cleaning of the coarse particles remaining on the screening frame and improving the recycling effect of the ground coarse fused powder.

[0031] Secondly, the screening screen 110 is provided inside the top frame 109, and the bottom frame 111 is provided below the top frame 109. The flexible connecting frame 112 is installed between the inner sidewall of the top frame 109 and the inner sidewall of the bottom frame 111. Multiple vibration motors 125 are installed between the top frame 109 and the bottom frame 111, and are all located outside the flexible connecting frame 112.

[0032] Meanwhile, the pull plate 107 is slidably disposed inside the mounting bracket 106. A limiting shaft 113 is rotatably disposed at one end of the mounting bracket 106 away from the melting box 103. A threaded rod 114 is threadedly connected internally to the limiting shaft 113. One end of the threaded rod 114 near the pull plate 107 is connected to the pull plate 107 via a connecting bearing 115. A transmission gear 126 is disposed externally on the limiting shaft 113. A servo motor 116 is mounted at one end of the mounting bracket 106 away from the melting box 103. A gear reducer 117 is disposed at the output end of the servo motor 116. An output gear 118 is disposed at the output end of the gear reducer 117. Gear 118 meshes with the transmission gear 126, starting the servo motor 116. After the output speed is reduced by the gear reducer 117, the output gear 118 is driven to rotate. Since the output gear 118 meshes with the transmission gear 126, the limiting shaft 113 is driven to rotate. Since the limiting shaft 113 does not move when rotating, the threaded rod 114 moves while rotating inside the limiting shaft 113. Then, through the connecting bearing 115, the pulling plate 107 is driven to slide on the mounting frame 106, completing the adjustment of the position of the pulling plate 107. Then, through the rotating shaft 108, the screening frame is driven to slide in the through groove 124.

[0033] Additionally, the base 119 is mounted on the side of the pull plate 107 facing the melting box 103. The rotating disk 120 is rotatably mounted on the side of the base 119 away from the pull plate 107. A transmission gear ring 127 is provided on the side of the rotating disk 120 located inside the base 119. The drive motor 121 is mounted on the inner bottom of the base 119. The output end of the drive motor 121 is mounted with the drive gear 123 through the output shaft 122. The drive gear 123 meshes with the transmission gear ring 127. When the drive assembly is started, the output shaft 122 drives the drive gear 123 to rotate. Since the drive gear 123 meshes with the transmission gear ring 127, the rotating disk 120 is driven to rotate on the base 119, thereby driving the rotating shaft 108 to rotate, completing the flipping of the screening frame.

[0034] Furthermore, two limiting rings 128 are provided on the outside of the limiting shaft 113. The two limiting rings 128 are respectively located on the front and rear sides of the end of the mounting bracket 106 away from the melting box 103. The setting of the limiting rings 128 makes the structure of the limiting shaft 113 more stable when it rotates.

[0035] When using the frit grinding apparatus for preparing ceramic glaze according to this embodiment, the frit raw material is put into the frit box 103, and the exhaust fan conveying mechanism 104 is started to quantitatively and continuously convey the frit raw material to the grinding mechanism 105 for grinding. The ground frit powder falls into the sieving frame of the sieving mechanism. The multiple vibration motors 125 on the sieving frame are started, so that the frit powder is sieved under high-frequency micro-amplitude vibration. The qualified powder that meets the fineness requirements passes through the mesh of the sieving frame, while the coarse frit particles that do not pass through the mesh of the sieving frame remain on the sieve. After the exhaust fan conveying mechanism 104 and the grinding mechanism 105 stop operating, the pulling mechanism is activated, which drives the pulling plate 107 to move horizontally toward the mounting frame 106 away from the frit box 103, so that the entire screening frame is located inside the frit box 103. The rotatable mounting base is activated, which drives the screening frame to flip, so that the coarse frit particles stuck on the screening frame fall to the bottom of the frit box 103, thereby completing the cleaning of the coarse particles stuck on the screening frame and making the recycling effect of the ground coarse frit particles better.

[0036] Second embodiment: Based on the first embodiment, please refer to Figure 6 and Figure 7 , Figure 6 This is a schematic diagram of the frit grinding apparatus for preparing ceramic glaze according to the second embodiment. Figure 7 for Figure 6 A magnified view of the local structure at point B.

[0037] The present invention provides a frit grinding device for preparing ceramic glaze, which also includes a protective shell 201.

[0038] In this specific embodiment, the mounting bracket 106 is provided with a protective shell 201 at one end away from the melting box 103. The protective shell 201 is disposed outside the output gear 118 and the transmission gear 126. The protective shell 201 is provided to prevent the external environment from affecting the meshing of the output gear 118 and the transmission gear 126.

[0039] The protective shell 201 is provided with an injection pipe 202. A sealing plug 203 is provided at one end of the injection pipe 202 away from the protective shell 201. After removing the sealing plug 203, gear lubricating oil can be injected into the interior of the protective shell 201 through the injection pipe 202, thereby reducing the wear at the meshing point of the output gear 118 and the transmission gear 126.

[0040] When using the frit grinding apparatus for preparing ceramic glaze according to this embodiment, the protective shell 201 prevents the external environment from affecting the meshing of the output gear 118 and the transmission gear 126. Furthermore, the sealing plug 203 can be removed, and gear lubricating oil can be injected into the interior of the protective shell 201 through the injection pipe 202, thereby reducing wear at the meshing of the output gear 118 and the transmission gear 126.

[0041] Please see Figure 8 The present invention also provides a method for grinding a frit for preparing ceramic glazes, applied to the frit grinding apparatus for preparing ceramic glazes as described above, comprising the following steps: S1. The frit material is put into the frit box 103, and the exhaust fan conveying mechanism 104 is started to quantitatively and continuously convey the frit material to the grinding mechanism 105 for grinding. S2. The ground frit powder falls into the screening frame of the screening mechanism. Multiple vibration motors 125 on the screening frame are started, so that the frit powder is screened under high frequency micro-amplitude vibration. The qualified powder that meets the fineness requirements passes through the mesh of the screening frame and falls into the collection box 102 to complete the collection. S3. Coarse molten material that does not pass through the mesh of the screening frame remains on the screening frame. After a preset time, the exhaust fan conveying mechanism 104 and the grinding mechanism 105 stop operating, and the pulling mechanism is activated. The pulling plate 107 is moved horizontally toward the mounting frame 106 away from the molten material box 103. Then, through the rotating shaft 108, the screening frame is pulled to slide in the through groove 124 until the screening frame is disengaged from the through groove 124 and is located inside the molten material box 103. S4. When the screening frame is inside the frit box 103, the rotatable mounting base is activated to rotate the screening frame, causing the coarse frit particles stuck on the screening frame to fall to the bottom of the frit box 103 (after the screening frame is rotated, multiple vibration motors 125 are activated to accelerate the falling speed of the coarse frit particles). S5. After the coarse molten material retained on the screening frame is cleaned, the rotatable mounting base and the pulling mechanism drive the screening frame to reset, and the exhaust fan conveying mechanism 104 is started, so that the coarse molten material that has fallen back into the molten material box 103 is sent back into the grinding mechanism 105 for secondary grinding until its particle size is qualified.

[0042] In this embodiment, the frit raw material is fed into the frit box 103, and the exhaust fan conveying mechanism 104 is started to quantitatively and continuously convey the frit raw material to the grinding mechanism 105 for grinding. The ground frit powder falls into the sieving frame of the sieving mechanism. Multiple vibration motors 125 on the sieving frame are started, so that the frit powder is sieved under high-frequency micro-vibration. Qualified powder that meets the fineness requirements passes through the mesh of the sieving frame, while coarse frit particles that do not pass through the mesh of the sieving frame remain on the sieving frame. After the exhaust fan conveying mechanism 104 and the grinding mechanism 105 stop operating, the pulling mechanism is started to drive the pulling plate 107 away from the mounting frame 106. The directional translation of the frit box 103 causes the entire screening frame to be located inside the frit box 103. The rotatable mounting base is activated, causing the screening frame to flip, so that the coarse frit particles retained on the screening frame fall to the bottom of the frit box 103, thereby cleaning the coarse particles retained on the screening frame and improving the recycling effect of the ground coarse frit particles. After the coarse frit particles retained on the screening frame are cleaned, the rotatable mounting base and the pulling mechanism drive the screening frame to reset. The exhaust fan conveying mechanism 104 is activated, so that the coarse frit particles that have fallen back into the frit box 103 are sent back into the grinding mechanism 105 for secondary grinding until their particle size is qualified.

[0043] The above description discloses only one preferred embodiment of the present invention, and should not be construed as limiting the scope of the present invention. Those skilled in the art will understand that all or part of the processes of the above embodiments can be implemented, and equivalent changes made in accordance with the claims of the present invention are still within the scope of the invention.

Claims

1. A frit grinding apparatus for preparing ceramic glaze, comprising a base, a collecting box, a frit box, a fan conveying mechanism, and a grinding mechanism, wherein the grinding mechanism is mounted on the top of the base, the collecting box is disposed at the inner bottom of the base, the frit box is disposed on the outer side of the base, the input end of the fan conveying mechanism is connected to the frit box, and the output end of the fan conveying mechanism is connected to the output end of the grinding mechanism, characterized in that... It also includes a screening mechanism; The screening mechanism includes a mounting frame, a pulling mechanism, a pulling plate, a rotatable mounting base, a rotating shaft, and a screening frame. A through groove is provided through the side wall of the base. The molten metal box is located outside the through groove. The screening frame is slidably installed in the through groove. Multiple vibration motors are provided on the screening frame. The mounting frame is installed on the side of the molten metal box away from the base. The pulling mechanism includes a limiting shaft, a driving assembly, and a threaded rod. The limiting shaft is rotatably mounted on the mounting frame at the end away from the frit box, and its interior is threadedly connected to the threaded rod. The end of the threaded rod near the frit box is connected to the pulling plate. A rotatable mounting seat is located on the side of the pulling plate facing the frit box. The end of the rotatable mounting seat away from the pulling plate is connected to the screening frame via the rotating shaft. The output end of the driving assembly is mechanically driven by a transmission gear outside the limiting shaft to drive the limiting shaft to rotate. The threaded rod then drives the pulling plate to move horizontally, causing the screening frame to move horizontally into the frit box. The rotatable mounting seat is used to drive the screening frame to flip, causing the coarse frit particles retained on it to fall to the bottom of the frit box. The exhaust fan conveying mechanism is then activated, causing the coarse frit particles that have fallen back into the frit box to be sent back to the grinding mechanism for secondary grinding.

2. The frit grinding apparatus for preparing ceramic glazes as described in claim 1, characterized in that, The screening frame includes a top frame, a screening mesh, a bottom frame, and a flexible connecting frame. The screening mesh is disposed inside the top frame, and the bottom frame is disposed below the top frame. The flexible connecting frame is installed between the inner sidewall of the top frame and the inner sidewall of the bottom frame. Multiple vibration motors are installed between the top frame and the bottom frame, and are all located outside the flexible connecting frame.

3. The frit grinding apparatus for preparing ceramic glazes as described in claim 1, characterized in that, The pulling mechanism also includes a connecting bearing, and one end of the threaded rod near the pulling plate is connected to the pulling plate through the connecting bearing.

4. The frit grinding apparatus for preparing ceramic glazes as described in claim 3, characterized in that, The drive assembly includes a servo motor, a gear reducer, and an output gear. The servo motor is mounted on the end of the mounting bracket away from the melting box. The output end of the servo motor is provided with the gear reducer, and the output end of the gear reducer is provided with the output gear, which meshes with the transmission gear.

5. The frit grinding apparatus for preparing ceramic glazes as described in claim 1, characterized in that, The rotatable mounting base includes a base body, a rotating disk, and a rotating assembly. The base body is mounted on the side of the pull plate facing the melting box. The rotating disk is rotatably mounted on the side of the base body away from the pull plate. A transmission gear ring is provided on the side of the rotating disk located inside the base body. The rotating assembly is installed inside the base body, and the output end of the rotating assembly meshes with the transmission gear ring.

6. The frit grinding apparatus for preparing ceramic glazes as described in claim 5, characterized in that, The rotating assembly includes a drive motor, an output shaft, and a drive gear. The drive motor is installed at the inner bottom of the base, and the drive gear is installed at the output end of the drive motor through the output shaft. The drive gear meshes with the transmission gear ring.

7. The frit grinding apparatus for preparing ceramic glazes as described in claim 4, characterized in that, The ceramic glaze preparation frit grinding device also includes a protective shell, which is provided at the end of the mounting frame away from the frit box, and the protective shell is disposed outside the output gear and the transmission gear.

8. The frit grinding apparatus for preparing ceramic glazes as described in claim 7, characterized in that, An injection tube is provided on the protective shell, and a sealing plug is provided at the end of the injection tube away from the protective shell.

9. A method for grinding a frit for preparing ceramic glazes, applied to the frit grinding apparatus for preparing ceramic glazes as described in claim 1, characterized in that, Includes the following steps: The molten raw material is put into the molten box, and the exhaust fan conveying mechanism is started to quantitatively and continuously convey the molten raw material to the grinding mechanism for grinding. The ground frit powder falls into the screening frame of the screening mechanism. Multiple vibration motors on the screening frame are activated, causing the frit powder to be screened under high-frequency micro-amplitude vibration. Qualified powder that meets the fineness requirements passes through the mesh of the screening frame and falls into the collection box, completing the collection. Coarse molten material that fails to pass through the mesh of the screening frame remains on the screening frame. After a preset time, the exhaust fan conveying mechanism and the grinding mechanism stop operating, and the pulling mechanism is activated, which drives the pulling plate to move horizontally toward the mounting frame away from the molten material box. Then, through the rotating shaft, the screening frame is pulled to slide in the through groove until the screening frame is disengaged from the through groove and is located inside the molten material box. When the screening frame is inside the frit box, the rotatable mounting base is activated, causing the screening frame to flip, so that the coarse frit particles stuck on the screening frame fall to the bottom of the frit box. After the coarse molten material retained on the screening frame is cleaned, the rotatable mounting base and the pulling mechanism drive the screening frame to reset, and the exhaust fan conveying mechanism is started, so that the coarse molten material that has fallen back into the molten material box is sent back into the grinding mechanism for secondary grinding until its particle size is qualified.

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