A solid coating grinding device

Abstract

The utility model discloses a solid coating grinding device, including a mounting seat, a lifting grinding assembly, a discharging assembly and a controller, wherein the mounting seat is arranged on a workbench; the lifting grinding assembly includes a fixed seat, a lifting mechanism, a discharging barrel, a driving rod, a grinding barrel and a hemispherical grinding seat, the discharging assembly is arranged on the top of the mounting seat, the discharging assembly is respectively connected to the output ends of multiple groups of discharging barrels, the controller is fixedly connected to the top of the mounting seat, the controller is electrically connected to an external power supply, and the output end of the controller is respectively connected to the input end of the lifting mechanism and the input end of the discharging assembly. Thus, the device can realize the synchronous grinding operation of the materials in the multiple groups of grinding barrels, and after the grinding operation is completed, the materials in the multiple groups of grinding barrels are synchronously discharged, which effectively improves the work efficiency, reduces the labor intensity, and has a good use effect.

Description

Technical Field

[0001] The utility model relates to the technical field of solid coating grinding, in particular to a solid coating grinding device. Background Art

[0002] In the preparation process of powder coating, in order to obtain the particle size that meets the use requirements, it is usually necessary to undergo fine crushing and grinding to improve the use effect of the coating. However, in the prior art, many grinding devices are only equipped with one barrel, which limits the processing volume of a single batch and thus affects the grinding efficiency. In addition, these grinding devices are relatively easy to discharge, but face difficulties in taking out the materials, which increases the inconvenience and time cost of operation. Utility Model Content

[0003] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

[0004] To this end, the purpose of the utility model is to propose a solid coating grinding device, which can realize the synchronous grinding operation of materials in multiple groups of grinding barrels, and after the grinding operation is completed, synchronously discharge the materials in multiple groups of grinding barrels. It is simple to operate, effectively improves work efficiency, reduces labor intensity, and has good use effect.

[0005] To achieve the above-mentioned purpose, the utility model proposes a solid coating grinding device, including a mounting seat, a lifting grinding assembly, a discharging assembly and a controller, wherein the mounting seat is arranged on a workbench; the lifting grinding assembly includes a fixed seat, a lifting mechanism, a discharging barrel, a driving rod, a grinding barrel and a hemispherical grinding seat, wherein the fixed seat is fixedly connected to the top of the mounting seat, the lifting mechanism is arranged at the top center of the fixed seat, the discharging barrel is evenly fixedly connected to the lifting mechanism, the grinding barrel is evenly fixedly connected to the top of the fixed seat and corresponds to the position of the discharging barrel, the hemispherical grinding seat is rotatably connected to the inner wall of the grinding barrel, and one end of the hemispherical grinding seat penetrates into the mounting seat Inside the mounting seat, the driving rod is fixedly connected to the inner wall of the discharge barrel, one end of the driving rod passes through the interior of the hemispherical grinding seat, and the surface of one end of the driving rod that passes through the interior of the hemispherical grinding seat is respectively provided with a convex shaft and a spiral guide groove at positions corresponding to the surface position of the hemispherical grinding seat, one end of the convex shaft is located inside the spiral guide groove and is slidably connected to the inner wall of the spiral guide groove; the discharge assembly is arranged on the top of the mounting seat, and the discharge assembly is respectively connected to multiple groups of the discharge barrel output ends, the controller is fixedly connected to the top of the mounting seat, the controller is electrically connected to an external power supply, and the output ends of the controller are respectively connected to the input end of the lifting mechanism and the input end of the discharge assembly.

[0006] The utility model discloses a solid coating grinding device, which can realize synchronous grinding operation on materials in multiple groups of grinding barrels, and synchronously discharge materials in multiple groups of grinding barrels after the grinding operation is completed, thereby effectively improving work efficiency, reducing labor intensity, and having good use effect.

[0007] In addition, the solid coating grinding device proposed in the application may also have the following additional technical features:

[0008] Specifically, the lifting mechanism includes a shaft seat, a threaded screw, a limiting column, a lifting plate and a driving motor, wherein the shaft seat is fixedly connected to the top of the fixed seat, the threaded screw is rotatably connected to the inner wall of the shaft seat, the grinding barrel is evenly fixedly connected to the top of the fixed seat and is located on the outside of the shaft seat, the limiting column is symmetrically fixedly connected to the top of the fixed seat and is located on the outside of the grinding barrel, the lifting plate is threadedly connected to the outer surface of the threaded screw and slidably connected to the outer surface of the limiting column, the discharge barrel is evenly fixedly connected to the inner wall of the lifting plate and corresponds to the position of the grinding barrel, the driving motor is fixedly connected to the inner wall of the mounting seat and is fixedly connected to one end of the threaded screw, and the input end of the driving motor is connected to the output end of the controller.

[0009] Specifically, the discharge assembly includes a collecting barrel, a fan, a branch pipe seat, a main pipe and multiple groups of branch hoses, wherein the collecting barrel is fixedly connected to the top of the mounting seat, the fan is fixedly connected to the top of the collecting barrel, the branch pipe seat is fixedly connected to the top of the limiting column, one end of the fan is connected to the inside of the collecting barrel, the other end of the fan is connected to one end of the main pipe, the other end of the main pipe is connected to the output end of the branch pipe seat, the input ends of multiple groups of branch hoses are connected to the output ends of multiple groups of discharge barrels, and the output ends of multiple groups of branch hoses are respectively connected to the input ends of the branch pipe seat; the input end of the fan is connected to the output end of the controller.

[0010] Specifically, the hemispherical grinding seat includes a hemisphere and a cylinder, wherein the hemisphere is rotatably connected to the inner wall of the grinding barrel and is adapted to the internal outer dimensions of the grinding barrel, the cylinder is integrally formed at the bottom of the hemisphere, one end of the cylinder penetrates into the interior of the mounting seat, the spiral guide groove is provided on the surface of the cylinder, one end of the driving rod penetrates into the interior of the cylinder through a through hole provided at the top of the hemisphere, and is threadedly connected with the convex shaft.

[0011] Specifically, the lifting and grinding assembly also includes a conductive inner ring and a conductive outer ring, wherein the conductive inner ring is arranged on the surface of the limiting column, and the conductive outer ring is arranged on the inner wall of the lifting plate, and the inner wall of the conductive outer ring is slidingly connected to the surface of the conductive inner ring. When the conductive inner ring contacts the conductive outer ring, the circuit of the fan is connected and energized, and when the conductive inner ring is separated from the conductive outer ring, the circuit of the fan is disconnected and the power is cut off.

[0012] Specifically, the inner diameter of the discharge barrel is consistent with the outer diameter of the grinding barrel, the discharge barrel is sleeved on the outside of the grinding barrel, and the inner wall of the discharge barrel is slidably connected to the surface of the grinding barrel.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0015] Figure 1 This is a schematic diagram of the structure of a solid coating grinding device of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of a lifting and grinding assembly in a solid coating grinding device of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of a discharging assembly in a solid coating grinding device of the utility model;

[0018] Figure 4 The utility model is a schematic diagram of the structure of a hemispherical grinding seat in a solid coating grinding device.

[0019] As shown in the figure:

[0020] 1. Mounting seat; 2. Lifting grinding assembly; 3. Discharging assembly; 4. Controller; 21. Fixed seat; 30. Lifting mechanism; 28. Discharging cylinder; 29. ​​Driving rod; 24. Grinding cylinder; 25. Hemispherical grinding seat; 210. Convex shaft; 211. Spiral guide groove;

[0021] 22. Shaft seat; 23. Threaded screw; 26. Limiting column; 27. Lifting plate; 212. Driving motor;

[0022] 31. Collecting barrel; 32. Fan; 33. Branch pipe seat; 34. Main pipeline; 35. Branch hose;

[0023] 251, hemisphere; 252, cylinder;

[0024] 213. Conductive inner ring. DETAILED DESCRIPTION

[0025] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limitations on the present invention. On the contrary, the embodiments of the present invention include all changes, modifications, and equivalents that fall within the spirit and connotation of the appended claims.

[0026] A solid coating grinding device according to an embodiment of the utility model will be described below in conjunction with the accompanying drawings.

[0027] like Figure 1-Figure 4 As shown, a solid coating grinding device according to an embodiment of the utility model comprises a mounting seat 1, a lifting grinding assembly 2, a discharging assembly 3 and a controller 4, wherein the mounting seat 1 is arranged on a workbench; the lifting grinding assembly 2 comprises a fixed seat 21, a lifting mechanism 30, a discharging barrel 28, a driving rod 29, a grinding barrel 24 and a hemispherical grinding seat 25, wherein the fixed seat 21 is fixedly connected to the top of the mounting seat 1, the lifting mechanism 30 is arranged at the top center of the fixed seat 21, the discharging barrel 28 is evenly fixedly connected to the lifting mechanism 30, the grinding barrel 24 is evenly fixedly connected to the top of the fixed seat 21 and corresponds to the position of the discharging barrel 28, the hemispherical grinding seat 25 is rotatably connected to the inner wall of the grinding barrel 24, and one end of the hemispherical grinding seat 25 penetrates Enter the interior of the mounting seat 1, the driving rod 29 is fixedly connected to the inner wall of the discharge barrel 28, one end of the driving rod 29 passes through the interior of the hemispherical grinding seat 25, and the surface of one end of the driving rod 29 that passes through the interior of the hemispherical grinding seat 25 is respectively provided with a convex shaft 210 and a spiral guide groove 211 at the position corresponding to the surface position of the hemispherical grinding seat 25, one end of the convex shaft 210 is located inside the spiral guide groove 211 and is slidably connected to the inner wall of the spiral guide groove 211; the discharge assembly 3 is arranged on the top of the mounting seat 1, and the discharge assembly 3 is respectively connected to the output ends of multiple groups of discharge barrels 28, the controller 4 is fixedly connected to the top of the mounting seat 1, the controller 4 is electrically connected to the external power supply, and the output end of the controller 4 is respectively connected to the input end of the lifting mechanism 30 and the input end of the discharge assembly 3.

[0028] It should be noted that the structure, connection relationship and control relationship of the controller 4 described in this embodiment are all prior arts, and thus will not be described in detail here.

[0029] Specifically, before use, the material is quantitatively poured into the multiple groups of grinding barrels 24. When in use, the lifting mechanism 30 is controlled by the controller 4 to operate. The operation of the lifting mechanism 30 synchronously drives the multiple groups of discharge barrels 28 to descend. The descent of the discharge barrel 28 synchronously drives the driving rod 29 to descend. The descent of the driving rod 29 synchronously drives the cam 210 to move downward along the inner wall of the spiral guide groove 211, and synchronously drives the hemispherical grinding seat 25 to rotate. The hemispherical grinding seat 25 rotates to grind the material inside the grinding barrel 24. When the discharge barrel 28 continues to descend and is sleeved on the outside of the grinding barrel 24, the lifting mechanism 30 is controlled to stop running by the controller 4, and then the discharge assembly 3 is controlled to be powered on. The discharge assembly 3 is operated to uniformly extract and collect the materials inside the multiple groups of grinding barrels 24. The operation is simple and the work efficiency is effectively improved. After the materials are uniformly extracted, the discharge assembly 3 is controlled to stop running by the controller 4, and then the lifting mechanism 30 is controlled to operate. The operation of the lifting mechanism 30 drives the multiple groups of discharge barrels 28 to reset.

[0030] In one embodiment of the present invention, Figure 2 As shown, the lifting mechanism 30 includes a shaft seat 22, a threaded screw 23, a limiting column 26, a lifting plate 27 and a driving motor 212, wherein the shaft seat 22 is fixedly connected to the top of the fixed seat 21, the threaded screw 23 is rotatably connected to the inner wall of the shaft seat 22, the grinding barrel 24 is evenly fixedly connected to the top of the fixed seat 21 and is located on the outside of the shaft seat 22, the limiting column 26 is symmetrically fixedly connected to the top of the fixed seat 21 and is located on the outside of the grinding barrel 24, the lifting plate 27 is threadedly connected to the outer surface of the threaded screw 23 and slidably connected to the outer surface of the limiting column 26, the discharge barrel 28 is evenly fixedly connected to the inner wall of the lifting plate 27 and corresponds to the position of the grinding barrel 24, the driving motor 212 is fixedly connected to the inner wall of the mounting seat 1 and is fixedly connected to one end of the threaded screw 23, and the input end of the driving motor 212 is connected to the output end of the controller 4.

[0031] Specifically, the controller 4 controls the driving motor 212 to be powered on and run, and the driving motor 212 synchronously drives the threaded screw 23 to rotate. The rotation of the threaded screw 23 synchronously drives the lifting plate 27 to move downward along the outer surface of the threaded screw 23 and the outer surface of the limiting column 26. The downward movement of the lifting plate 27 synchronously drives the discharge barrel 28 to move downward.

[0032] In one embodiment of the present invention, Figure 3As shown, the discharge assembly 3 includes a collecting barrel 31, a fan 32, a branch pipe seat 33, a main pipe 34 and multiple groups of branch hoses 35, wherein the collecting barrel 31 is fixedly connected to the top of the mounting seat 1, the fan 32 is fixedly connected to the top of the collecting barrel 31, the branch pipe seat 33 is fixedly connected to the top of the limiting column 26, one end of the fan 32 is connected to the inside of the collecting barrel 31, the other end of the fan 32 is connected to one end of the main pipe 34, the other end of the main pipe 34 is connected to the output end of the branch pipe seat 33, the input ends of the multiple groups of branch hoses 35 are connected to the output ends of the multiple groups of discharge barrels 28, and the output ends of the multiple groups of branch hoses 35 are respectively connected to the input ends of the branch pipe seat 33; the input end of the fan 32 is connected to the output end of the controller 4

[0033] It should be noted that the discharge assembly 3 described in this embodiment is used to extract the material inside the grinding barrel 24 and collect it uniformly after the material grinding is completed.

[0034] Specifically, after the discharge barrel 28 is sleeved on the outside of the grinding barrel 24, the controller 4 controls the fan 32 to be powered on and run. The fan 32 cooperates with the branch pipe seat 33, the main pipeline 34 and multiple groups of branch hoses 35 to uniformly extract the materials inside the multiple groups of grinding barrels 24 into the collecting barrel 31 for collection. The operation is simple, the work efficiency is effectively improved, and the use effect is good.

[0035] In one embodiment of the present invention, Figure 4 As shown, the hemispherical grinding seat 25 includes a hemispherical body 251 and a cylindrical barrel 252, wherein the hemispherical body 251 is rotatably connected to the inner wall of the grinding barrel 24 and is adapted to the internal dimensions of the grinding barrel 24, and the cylindrical barrel 252 is integrally formed and arranged at the bottom of the hemispherical body 251, one end of the cylindrical barrel 252 penetrates into the interior of the mounting seat 1, a spiral guide groove 211 is provided on the surface of the cylindrical barrel 252, one end of the driving rod 29 penetrates into the interior of the cylindrical barrel 252 through a through hole provided on the top of the hemispherical body 251, and is threadedly connected with a convex shaft 210.

[0036] It should be noted that the hemispherical body 251 described in this embodiment is used for grinding materials, and the cylinder 252 is designed to drive the hemispherical body 251 to rotate.

[0037] Specifically, the driving rod 29 descends and synchronously drives the cam 210 to move downward along the inner wall of the spiral guide groove 211 , and synchronously drives the cylinder 252 to rotate. The rotation of the cylinder 252 synchronously drives the hemisphere 251 to rotate, thereby grinding the material inside the grinding barrel 24 .

[0038] In one embodiment of the present invention, Figure 2As shown, the lifting and grinding assembly 2 also includes a conductive inner ring 213 and a conductive outer ring, wherein the conductive inner ring 213 is arranged on the surface of the limiting column 26, and the conductive outer ring is arranged on the inner wall of the lifting plate 27, and the inner wall of the conductive outer ring is slidingly connected with the surface of the conductive inner ring 213. When the conductive inner ring 213 contacts the conductive outer ring, the circuit of the fan 32 is connected and energized, and when the conductive inner ring 213 is separated from the conductive outer ring, the circuit of the fan 32 is disconnected and the power is cut off.

[0039] It should be noted that the conductive inner ring 213 and the conductive outer ring described in this embodiment are used as switches to control the opening and closing of the fan 32, and can follow the operation of the lifting mechanism 30. There is no need to add additional control parts to control the opening and closing of the fan 32. The overall operation is simple, easy to control, and has a good effect.

[0040] Specifically, the lifting plate 27 descends, synchronously driving the conductive outer ring to descend. When the conductive outer ring contacts the conductive inner ring 213 on the surface of the limiting column 26, the circuit of the fan 32 is connected and energized, and the fan 32 is powered on and runs. When the conductive inner ring 213 separates from the conductive outer ring, the circuit of the fan 32 is disconnected and the power is cut off, and the fan 32 stops running.

[0041] In one embodiment of the present invention, Figure 1 As shown, the inner diameter of the discharge cylinder 28 is consistent with the outer diameter of the grinding cylinder 24 , the discharge cylinder 28 is sleeved on the outside of the grinding cylinder 24 , and the inner wall of the discharge cylinder 28 is slidably connected to the surface of the grinding cylinder 24 .

[0042] It should be noted that a sealing ring (not shown in the figure) is provided on the surface of the grinding barrel 24 described in this embodiment.

[0043] It should also be noted that the inner diameter of the discharge barrel 28 described in this embodiment is consistent with the outer diameter of the grinding barrel 24, so that the discharge barrel 28 can be sleeved on the outside of the grinding barrel 24, and can also cooperate with the sealing ring to ensure stable sealing and good use effect.

[0044] In summary, the solid coating grinding device of the embodiment of the utility model can realize the synchronous grinding operation of materials in multiple groups of grinding barrels, and after the grinding operation is completed, the materials in multiple groups of grinding barrels can be discharged synchronously, which effectively improves work efficiency, reduces labor intensity, and has a good use effect.

[0045] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0046] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0047] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and deform the above embodiments within the scope of the present invention.

Claims

1. A solid coating grinding device, characterized in that: It comprises a mounting seat (1), a lifting and grinding assembly (2), a discharge assembly (3) and a controller (4), wherein: The mounting seat (1) is arranged on a workbench; The lifting and grinding assembly (2) comprises a fixed seat (21), a lifting mechanism (30), a discharge cylinder (28), a driving rod (29), a grinding cylinder (24) and a hemispherical grinding seat (25), wherein: The fixed seat (21) is fixedly connected to the top of the mounting seat (1); the lifting mechanism (30) is arranged at the center of the top of the fixed seat (21); the discharge barrel (28) is evenly fixedly connected to the lifting mechanism (30); the grinding barrel (24) is evenly fixedly connected to the top of the fixed seat (21) and corresponds to the position of the discharge barrel (28); the hemispherical grinding seat (25) is rotatably connected to the inner wall of the grinding barrel (24); one end of the hemispherical grinding seat (25) penetrates into the mounting seat (1 ), the driving rod (29) is fixedly connected to the inner wall of the discharge barrel (28), one end of the driving rod (29) penetrates into the interior of the hemispherical grinding seat (25), and a convex shaft (210) and a spiral guide groove (211) are respectively arranged at the position corresponding to the surface position of the hemispherical grinding seat (25) on the surface of one end of the driving rod (29) penetrating into the interior of the hemispherical grinding seat (25), and one end of the convex shaft (210) is located in the spiral guide groove (211) and is slidably connected to the inner wall of the spiral guide groove (211); The discharge assembly (3) is arranged on the top of the mounting seat (1), and the discharge assembly (3) is respectively connected to the output ends of multiple groups of the discharge barrels (28). The controller (4) is fixedly connected to the top of the mounting seat (1), and the controller (4) is electrically connected to an external power supply. The output end of the controller (4) is respectively connected to the input end of the lifting mechanism (30) and the input end of the discharge assembly (3).

2. The solid coating grinding device according to claim 1, characterized in that: The lifting mechanism (30) comprises a shaft seat (22), a threaded screw (23), a limiting column (26), a lifting plate (27) and a driving motor (212), wherein: The shaft seat (22) is fixedly connected to the top of the fixed seat (21); the threaded screw (23) is rotatably connected to the inner wall of the shaft seat (22); the grinding barrel (24) is evenly fixedly connected to the top of the fixed seat (21) and is located on the outside of the shaft seat (22); the limiting column (26) is symmetrically fixedly connected to the top of the fixed seat (21) and is located on the outside of the grinding barrel (24); the lifting plate (27) is threadedly connected to the outer surface of the threaded screw (23) and is slidably connected to the outer surface of the limiting column (26); the discharge barrel (28) is evenly fixedly connected to the inner wall of the lifting plate (27) and corresponds to the position of the grinding barrel (24); the driving motor (212) is fixedly connected to the inner wall of the mounting seat (1) and is fixedly connected to one end of the threaded screw (23); the input end of the driving motor (212) is connected to the output end of the controller (4).

3. The solid coating grinding device according to claim 2, characterized in that: The material discharging assembly (3) comprises a collecting barrel (31), a fan (32), a branch pipe seat (33), a main pipe (34) and a plurality of branch hoses (35), wherein: The collecting barrel (31) is fixedly connected to the top of the mounting seat (1), the fan (32) is fixedly connected to the top of the collecting barrel (31), the branch pipe seat (33) is fixedly connected to the top of the limiting column (26), one end of the fan (32) is connected to the inside of the collecting barrel (31), the other end of the fan (32) is connected to one end of the main pipeline (34), the other end of the main pipeline (34) is connected to the output end of the branch pipe seat (33), the input ends of multiple groups of branch hoses (35) are connected to the output ends of multiple groups of discharge barrels (28), and the output ends of multiple groups of branch hoses (35) are respectively connected to the input ends of the branch pipe seat (33); The input end of the fan (32) is connected to the output end of the controller (4).

4. The solid coating grinding device according to claim 1, characterized in that: The hemispherical grinding seat (25) comprises a hemispherical body (251) and a cylindrical barrel (252), wherein: The hemisphere (251) is rotatably connected to the inner wall of the grinding barrel (24) and is adapted to the internal dimensions of the grinding barrel (24); the column (252) is integrally formed and arranged at the bottom of the hemisphere (251); one end of the column (252) penetrates into the interior of the mounting seat (1); the spiral guide groove (211) is provided on the surface of the column (252); one end of the driving rod (29) penetrates into the interior of the column (252) through a through hole provided at the top of the hemisphere (251) and is threadedly connected to the convex shaft (210).

5. The solid coating grinding device according to claim 3, characterized in that: The lifting and grinding assembly (2) further comprises a conductive inner ring (213) and a conductive outer ring, wherein: The conductive inner ring (213) is arranged on the surface of the limiting column (26), and the conductive outer ring is arranged on the inner wall of the lifting plate (27). The inner wall of the conductive outer ring is slidably connected to the surface of the conductive inner ring (213). When the conductive inner ring (213) is in contact with the conductive outer ring, the circuit of the fan (32) is connected and energized. When the conductive inner ring (213) is separated from the conductive outer ring, the circuit of the fan (32) is disconnected and the power is cut off.

6. The solid coating grinding device according to claim 1, characterized in that: The inner diameter of the discharge barrel (28) is consistent with the outer diameter of the grinding barrel (24); the discharge barrel (28) is sleeved on the outside of the grinding barrel (24); and the inner wall of the discharge barrel (28) is slidably connected to the surface of the grinding barrel (24).

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