Powder coating raw material grinding device

Abstract

The utility model relates to the technical field of grinding devices, and discloses a powdery coating raw material grinding device which comprises a top shell, a top frame is fixedly installed at the top end of the top shell, a telescopic rod is fixedly installed at the top end of the top frame, an installation ring is fixedly installed at the top end of the telescopic rod, and a motor is fixedly installed at the top end of the installation ring. A rotating shaft is arranged below the motor, threads are formed in the top end of the rotating shaft, and a meshing ring is fixedly installed at the bottom end of the top frame. Through meshing of the meshing ring and the threads, when the motor drives the rotating shaft to rotate, the grinding block is driven to move up and down, when the grinding block moves downwards to grind raw materials, the grinding block moves upwards to make the push block make contact with the moving rod, and then the moving rod is extruded to knock on the top shell; the vibrating device is arranged on the grinding plate with the holes to vibrate ground powder on the grinding plate with the holes, so that the powder quickly falls off from the sieve holes in the grinding plate with the holes, the powder is prevented from remaining on the grinding plate with the holes, and the grinding efficiency of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding devices, and more specifically, to a grinding device for powdery coating raw materials. Background Art

[0002] Powdery coatings are solid powder synthetic resin coatings composed of solid resins, pigments, fillers, and additives. During their production process, grinding devices are required to grind the raw materials into powder form. When existing grinding devices are in use, most of them are provided with a sieve inside the device to screen the ground powder. However, during actual use, it may occur that some of the ground powder remains on the sieve and cannot leak down in time, accumulating in the grinding area, reducing the grinding efficiency of the device. Content of the Utility Model

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a grinding device for powdery coating raw materials, which has the advantage of improving the grinding efficiency.

[0004] To achieve the above object, the utility model provides the following technical solution: A grinding device for powdery coating raw materials, including a top shell, a top frame is fixedly installed at the top end of the top shell, a telescopic rod is fixedly installed at the top end of the top frame, an installation ring is fixedly installed at the top end of the telescopic rod, a motor is fixedly installed at the top end of the installation ring, a rotating shaft is arranged below the motor, a thread is opened at the top end of the rotating shaft, a meshing ring is fixedly installed at the bottom end of the top frame, a grinding block is fixedly installed at the bottom end of the rotating shaft, a pushing block is fixedly installed on the top surface of the grinding block, a fixed pipe is fixedly installed on the inner wall of the top shell, a moving rod is slidably connected to the inner cavity of the fixed pipe, and a spring is fixedly installed between the moving rod and the fixed pipe.

[0005] As a preferred technical solution of the utility model, a meshing pipe is fixedly sleeved at the output end of the motor, a stud is fixedly installed at the top end of the rotating shaft, a locking groove is opened at the front end of the stud, a fixed shaft is fixedly installed at the front end of the rotating shaft, and a locking block is movably connected to the surface of the fixed shaft.

[0006] As a preferred technical solution of the utility model, a bottom frame is clamped at the bottom end of the top shell, a support foot is fixedly installed on the outer wall of the bottom frame, a placing block is fixedly installed on the outer wall of the top shell, a bolt is movably connected to the inner cavity of the placing block, the bottom end of the bolt meshes with the support foot, and a perforated grinding plate is placed at the top end of the bottom frame, and the perforated grinding plate is located inside the top shell.

[0007] As a preferred technical solution of the utility model, an extension pipe is fixedly installed at the top end of the grinding block, a blocking shaft is meshed with the inner cavity of the extension pipe, and the bottom surface of the blocking shaft is at the same horizontal plane as the ground surface of the grinding block.

[0008] As a preferred technical solution of the present utility model, the top end of the locking block is inserted into the locking groove, the locking block and the meshing tube have magnetism, and the stud is meshed in the meshing tube.

[0009] As a preferred technical solution of the present utility model, there are a total of eight fixing tubes, and the eight fixing tubes are angularly distributed on the inner wall of the top shell, and the pushing block is located below the fixing tubes.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0011] 1. Through the meshing of the meshing ring and the thread, the present utility model can drive the grinding block to move up and down when the motor drives the rotating shaft to rotate. When the grinding block moves down, the raw materials are ground, and then when it moves up, the pushing block contacts the moving rod, thereby squeezing the moving rod to strike on the top shell, vibrating the powder ground on the perforated grinding plate, so that the powder quickly falls from the sieve holes on the perforated grinding plate, avoiding the powder remaining on the perforated grinding plate and improving the grinding efficiency of the device.

[0012] 2. By adopting the arrangement of the stud meshed in the meshing tube, the present utility model unlocks the meshing tube and the rotating shaft by pulling out the locking block, and then drives the stud to rotate in the meshing tube by rotating the rotating shaft to adjust the overall length of the meshing tube and the rotating shaft, thereby realizing the adjustment of the distance value between the grinding block and the perforated grinding plate when the grinding block moves to the lowest point, that is, realizing the adjustment of the grinding precision of the grinding block for the raw materials and improving the application range of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of the present utility model;

[0014] Figure 2 is the present utility model Figure 1 magnified schematic diagram at A in;

[0015] Figure 3 is the present utility model Figure 1 magnified schematic diagram at B in;

[0016] Figure 4 is an exploded connection schematic diagram of the top shell of the structure of the present utility model;

[0017] Figure 5 is a sectional view schematic diagram of the fixing tube of the structure of the present utility model;

[0018] Figure 6 is a sectional view schematic diagram of the meshing tube of the structure of the present utility model.

[0019] In the figure: 1. top shell; 2. bottom frame; 3. supporting feet; 4. placing block; 5. bolts; 6. grinding plate with holes; 7. top frame; 8. telescopic rod; 9. mounting ring; 10. motor; 11. rotating shaft; 12. thread; 13. engagement ring; 14. grinding block; 15. push block; 16. fixed tube; 17. moving rod; 18. spring; 19. extension tube; 20. blocking shaft; 21. engagement tube; 22. stud; 23. locking groove; 24. fixed shaft; 25. locking block. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] like Figures 1 to 6 As shown, the utility model provides a powder coating raw material grinding device, including a top shell 1, a top frame 7 is fixedly installed on the top of the top shell 1, a telescopic rod 8 is fixedly installed on the top of the top frame 7, a mounting ring 9 is fixedly installed on the top of the telescopic rod 8, a motor 10 is fixedly installed on the top of the mounting ring 9, a rotating shaft 11 is provided below the motor 10, a thread 12 is provided on the top of the rotating shaft 11, an engaging ring 13 is fixedly installed on the bottom end of the top frame 7, a grinding block 14 is fixedly installed on the bottom end of the rotating shaft 11, a push block 15 is fixedly installed on the top surface of the grinding block 14, a fixed tube 16 is fixedly installed on the inner wall of the top shell 1, a moving rod 17 is slidably connected to the inner cavity of the fixed tube 16, and a spring 18 is fixedly installed between the moving rod 17 and the fixed tube 16;

[0022] Through the engagement of the engagement ring 13 and the thread 12, the motor 10 can drive the grinding block 14 to move up and down when the driving rotating shaft 11 rotates. When the grinding block 14 moves down to grind the raw material and then moves up to make the push block 15 contact with the moving rod 17, thereby squeezing the moving rod 17 to hit the top shell 1. When the push block 15 and the moving rod 17 are offset, the spring 18 in a compressed state can push the moving rod 17 back and reset it under the action of elasticity, vibrate the ground powder on the perforated grinding plate 6, and then make the powder fall quickly from the sieve holes on the perforated grinding plate 6, avoid the powder remaining on the perforated grinding plate 6, avoid the situation where the ground powder raw material accumulates in the grinding area, and improve the grinding efficiency of the device.

[0023] Among them, a meshing tube 21 is fixedly sleeved on the output end of the motor 10, a stud 22 is fixedly installed at the top end of the rotating shaft 11, a locking groove 23 is opened at the front end of the stud 22, a fixed shaft 24 is fixedly installed at the front end of the rotating shaft 11, and a locking block 25 is movably connected to the surface of the fixed shaft 24;

[0024] By placing the stud 22 meshed in the meshing tube 21 and pulling out the locking block 25, the meshing tube 21 and the rotating shaft 11 are unlocked. Subsequently, by rotating the rotating shaft 11 to drive the rotation of the stud 22 in the meshing tube 21, the overall length of the meshing tube 21 and the rotating shaft 11 is adjusted, thereby realizing the adjustment of the distance value between the grinding block 14 and the perforated grinding plate 6 when the grinding block 14 moves to the lowest point, that is, realizing the adjustment of the grinding precision of the grinding block 14 for the raw material and improving the usage range of the device.

[0025] Among them, the bottom end of the top shell 1 is snap-connected with a bottom frame 2, a support foot 3 is fixedly installed on the outer wall of the bottom frame 2, a placing block 4 is fixedly installed on the outer wall of the top shell 1, a bolt 5 is movably connected to the inner cavity of the placing block 4, the bottom end of the bolt 5 meshes with the support foot 3, and a perforated grinding plate 6 is placed on the top end of the bottom frame 2, and the perforated grinding plate 6 is located inside the top shell 1;

[0026] By meshing between the support foot 3 and the bolt 5, the detachable installation of the top shell 1 and the bottom frame 2 can be realized, and the top shell 1 and the bottom frame 2 can be quickly separated, so as to replace the perforated grinding plates 6 with different hole diameters to meet the requirements of different grinding precisions.

[0027] Among them, an extension tube 19 is fixedly installed at the top end of the grinding block 14, a plug shaft 20 is meshed in the inner cavity of the extension tube 19, and the bottom surface of the plug shaft 20 is at the same horizontal plane as the ground surface of the grinding block 14;

[0028] By arranging the meshed plug shaft 20 in the extension tube 19, it is realized that the bottom end of the grinding block 14 is sealed by the plug shaft 20, avoiding the situation that the raw material enters the feed hole on the grinding block 14 and cannot be ground during the grinding process.

[0029] Among them, the top end of the locking block 25 is inserted into the locking groove 23, the locking block 25 and the meshing tube 21 have magnetism, and the stud 22 is meshed in the meshing tube 21;

[0030] Through the magnetic connection between the locking block 25 and the meshing tube 21, it can be ensured that the locking block 25 will not detach after being placed in the locking groove 23. By inserting the locking block 25 into the locking groove 23, the horizontal locking of the rotating shaft 11 and the meshing tube 21 is realized, avoiding the situation that the rotating shaft 11 slips and cannot rotate when the motor 10 drives the meshing tube 21 to rotate.

[0031] Among them, there are a total of eight fixed tubes 16, and the eight fixed tubes 16 are distributed at an angle on the inner wall of the top shell 1. The push block 15 is located below the fixed tubes 16;

[0032] Setting eight fixed tubes 16 can increase the frequency of knocking on the top shell 1, accelerate the oscillating blanking. And the top end of the push block 15 is provided with a rounded corner to ensure that even when the push block 15 is just directly below the moving rod 17 during the upward movement of the push block 15, the normal upward movement of the push block 15 can be ensured. And the push block 15 has a certain thickness to ensure that after the push block 15 contacts the moving rod 17, the grinding block 14 can still continue to move upward, increasing the contact times between the push block 15 and the moving rod 17 and improving the time of oscillating blanking.

[0033] The working principle and usage process of the present utility model:

[0034] Before use, the push block 15 contacts the moving rod 17, and then the lowest point of the movement process of the grinding block 14 is adjusted according to the required grinding precision. The adjustment method is as follows: Pull the locking block 25 forward to disengage the locking block 25 from the locking groove 23, and then rotate the rotating shaft 11. Through the engagement of the stud 22 and the meshing tube 21, the overall length of the meshing tube 21 and the rotating shaft 11 is adjusted. When the rotating shaft 11 rotates one week, the distance between the rotating shaft 11 and the meshing tube 21 changes by 0.5 mm. When the overall length of the meshing tube 21 and the rotating shaft 11 becomes shorter, the distance between the lowest point of the grinding block 14 and the perforated grinding plate 6 becomes larger, and vice versa;

[0035] During use, pull out the plug shaft 20, place the raw material to be ground in the extension tube 19. The raw material enters below the grinding block 14 through the extension tube 19 and falls on the perforated grinding plate 6. Then insert the plug shaft 20 into the extension tube 19 and tighten it. Then start the motor 10. When the motor 10 rotates, it drives the grinding block 14 to rotate through the meshing tube 21 and the rotating shaft 11. And at the same time, due to the engagement of the thread 12 and the meshing ring 13, the rotating shaft 11, the grinding block 14, the meshing tube 21 and the motor 10 can be driven to move downward simultaneously, realizing the grinding block 14 to rotate and move downward at the same time. When the grinding block 14 contacts the raw material, the grinding block 14 and the perforated grinding plate 6 extrude and grind the raw material. And as the grinding block 14 continuously moves downward, pressure can be gradually applied to the raw material, making the raw material gradually ground into powder;

[0036] When the grinding block 14 moves to the lowest point, the motor 10 reverses to drive the grinding block 14 to move upward. When the push block 15 contacts the moving rod 17, the moving rod 17 can be extruded into the fixed tube 16, and then the fixed tube 16 knocks on the top shell 1, generating vibration on the powder located on the perforated grinding plate 6, causing the powder to fall from the sieve holes on the perforated grinding plate 6 into the bottom frame 2 and being discharged through the bottom frame 2;

[0037] After the grinding block 14 moves to the highest point, the motor 10 reverses again, and the grinding block 14 continues to move downward to continue grinding the remaining raw materials.

[0038] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0039] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A powder coating material grinding device, comprising a top shell (1), characterized in that: A top frame (7) is fixedly mounted on the top of the top shell (1), a telescopic rod (8) is fixedly mounted on the top of the top frame (7), a mounting ring (9) is fixedly mounted on the top of the telescopic rod (8), a motor (10) is fixedly mounted on the top of the mounting ring (9), a rotating shaft (11) is provided below the motor (10), a thread (12) is provided on the top of the rotating shaft (11), an engagement ring (13) is fixedly mounted on the bottom end of the top frame (7), a grinding block (14) is fixedly mounted on the bottom end of the rotating shaft (11), a push block (15) is fixedly mounted on the top surface of the grinding block (14), a fixed tube (16) is fixedly mounted on the inner wall of the top shell (1), a moving rod (17) is slidably connected to the inner cavity of the fixed tube (16), and a spring (18) is fixedly mounted between the moving rod (17) and the fixed tube (16).

2. A powdered paint raw material grinding device according to claim 1, characterized in that: The output end of the motor (10) is fixedly sleeved with a meshing tube (21), the top end of the rotating shaft (11) is fixedly mounted with a stud (22), the front end of the stud (22) is provided with a locking groove (23), the front end of the rotating shaft (11) is fixedly mounted with a fixed shaft (24), and the surface of the fixed shaft (24) is movably connected with a locking block (25).

3. A powdered paint raw material grinding device according to claim 1, characterized in that: The bottom end of the top shell (1) is clamped with a bottom frame (2), the outer wall of the bottom frame (2) is fixedly mounted with a support foot (3), the outer wall of the top shell (1) is fixedly mounted with a placement block (4), the inner cavity of the placement block (4) is movably connected with a bolt (5), the bottom end of the bolt (5) is meshed with the support foot (3), and a perforated grinding plate (6) is placed on the top end of the bottom frame (2), and the perforated grinding plate (6) is located in the inner cavity of the top shell (1).

4. A powdered paint raw material grinding device according to claim 1, characterized in that: An extension tube (19) is fixedly mounted on the top of the grinding block (14), a blocking shaft (20) is meshed in the inner cavity of the extension tube (19), and the bottom surface of the blocking shaft (20) is on the same horizontal plane as the ground surface of the grinding block (14).

5. A powdered paint raw material grinding device according to claim 2, characterized in that: The top end of the locking block (25) is inserted into the locking groove (23), the locking block (25) and the engagement tube (21) are magnetic, and the stud (22) is engaged in the engagement tube (21).

6. A powdered paint raw material grinding device according to claim 1, characterized in that: There are eight fixed tubes (16) in total, and the eight fixed tubes (16) are distributed at different angles on the inner wall of the top shell (1), and the push block (15) is located below the fixed tubes (16).

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