Automatic grinding and screening integrated device for powder coating

Abstract

The utility model relates to the technical field of powder coating processing, and discloses an automatic powder coating grinding and screening integrated device which comprises a connecting plate, supporting cylinders are fixedly connected to the top of the connecting plate, two supporting columns and a double-end motor are fixedly connected to the top of the connecting plate, and the two supporting cylinders and the double-end motor are distributed in an annular array mode. The top of the supporting column and the top of the double-end motor are both provided with connecting rod mechanisms, the output end of the double-end motor is fixed to the connecting rod mechanisms, the top of the supporting cylinder is fixedly connected with a grinding cylinder, two through holes are formed in the grinding cylinder, a moving cylinder is arranged between the connecting rod mechanisms, and the side wall of the moving cylinder is fixedly connected with a connecting block. According to the coating grinding device, the grinding effect is achieved through cooperation of the grinding cylinder, the connecting rod mechanism and the grinding disc, the grinding disc can be driven by the connecting rod mechanism to conduct large-range grinding, grinding blind spots are reduced, and therefore the grinding efficiency is improved, and waste of coating raw materials is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of powder coating processing, in particular to an automatic grinding and screening integrated device for powder coating. Background Art

[0002] Powder coating is a new type of solvent-free solid powder coating. Compared with liquid coating, it has the characteristics of solvent-free, pollution-free and high mechanical strength of coating film due to its less raw material components and solvent-free volatilization. It is widely used in various industries such as home appliances. In the production process of powder coating, the ground material must be further screened to obtain products that meet the requirements.

[0003] After searching, the announcement number: CN110314733A discloses a powder coating grinding and screening machine, which comprises a shell; the shell is divided into a grinding chamber and a screening chamber; a grinding roller is arranged in the grinding chamber; a cylinder is arranged on the shell outside the grinding chamber, and the piston rod of the cylinder is connected to the grinding roller through a bracket; a grinding filter is arranged at the lower end of the grinding roller; a stirring roller is arranged in the screening chamber, and a screening filter is arranged at the lower end of the stirring roller; the aperture of the screening filter is smaller than the aperture of the grinding filter. The present invention effectively improves the grinding and screening efficiency, shortens the screening time, ensures the screening fineness, can be applied to large-scale coating grinding and screening operations, and improves the production and processing efficiency of coatings;

[0004] In this application, a grinding roller is pushed by a cylinder to grind on a grinding filter screen. However, during the grinding process, the grinding roller has a cylindrical body and has certain grinding blind spots, which reduces the grinding effect. At the same time, the screen is used as a support point for grinding during the grinding process, and the support is not strong enough and is easily damaged, resulting in low grinding efficiency. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides an integrated device for automatic grinding and screening of powder coatings, aiming to improve the problem of grinding blind spots and waste of raw materials in the grinding process.

[0006] In order to achieve the above-mentioned objectives, the utility model adopts the following technical scheme: an integrated device for automatic grinding and screening of powder coatings, comprising a connecting plate, a supporting cylinder fixedly connected to the top of the connecting plate, two supporting columns and a double-headed motor fixedly connected to the top of the connecting plate, the two supporting cylinders and the double-headed motor are distributed in a circular array, a connecting rod mechanism is arranged on the top of the supporting column and the double-headed motor, wherein the output end of the double-headed motor is fixed to the connecting rod mechanism, a grinding cylinder fixedly connected to the top of the supporting cylinder, two through holes are provided inside the grinding cylinder, a moving cylinder is arranged between the connecting rod mechanisms, a connecting block is fixedly connected to the side wall of the moving cylinder, a supporting rod is fixedly connected to the top wall of the connecting block, a threaded sleeve is fixedly connected to the outer wall of the support rod, an adjusting threaded rod is threadedly connected to the inside of the threaded sleeve, a grinding disk is fixedly connected to the bottom end of the adjusting threaded rod, and a screening mechanism is arranged on the lower surface of the connecting plate.

[0007] As a further description of the above technical solution:

[0008] The connecting rod mechanism includes connecting rod one and connecting rod two, wherein connecting rod one is rotatably connected to the top of the support column, the top of connecting rod one is rotatably connected to connecting rod two, the moving cylinder is fixedly connected between connecting rods two, and the output end of the double-headed motor is fixedly connected to connecting rod one.

[0009] As a further description of the above technical solution:

[0010] A connecting cylinder 2 is fixedly connected to the bottom of the connecting plate, a screening cylinder is rotatably connected to the lower surface of the connecting cylinder 2, a connecting cylinder 1 is arranged at the bottom of the screening cylinder, the screening cylinder rotates between the connecting cylinder 2 and the connecting cylinder 1, the screening mechanism is located in the screening cylinder and the connecting cylinder 1, and a connecting cylinder 3 is fixedly connected to the bottom of the connecting cylinder 1.

[0011] As a further description of the above technical solution:

[0012] The screening mechanism comprises a sieve plate 1 and a sieve plate 2, wherein the sieve plate 1 is fixedly connected to the inside of the screening cylinder, and the sieve plate 2 is fixedly connected to the inner wall of the connecting cylinder 1, and the sieve plate 1 and the sieve plate 2 are in close contact with each other.

[0013] As a further description of the above technical solution:

[0014] The output end of the double-head motor is fixedly connected with a gear, and the gear is located on one side of the screening drum.

[0015] As a further description of the above technical solution:

[0016] The outer side wall of the screening cylinder is fixedly connected with a gear ring, and the gear ring is meshed with the gear.

[0017] As a further description of the above technical solution:

[0018] The grinding disc is rotatably connected to the inside of the grinding cylinder and fits with the bottom wall inside the grinding cylinder.

[0019] As a further description of the above technical solution:

[0020] A switch door is provided on one side of the connecting tube 3, and a handle is fixedly connected to the outer surface of the switch door.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, the grinding effect is achieved by the cooperation of the grinding cylinder, the connecting rod mechanism and the grinding disc, and the grinding disc can be driven by the connecting rod mechanism to perform large-scale grinding, thereby reducing the grinding blind spot, thereby improving the grinding efficiency and avoiding the waste of coating raw materials.

[0023] 2. In the utility model, the screening effect is achieved through the gears, gear rings, screening cylinder, sieve plate 1 and sieve plate 2, and multiple screenings can be performed here to screen out powders of different finenesses, thereby improving the fineness of the powder coating.

[0024] 3. In the utility model, the powder coating can be ground by the grinding disc and the grinding cylinder, and then the screening mechanism is cooperated to achieve the effect of integrated grinding and grinding, and the effect of linkage is achieved, thereby improving the processing efficiency of the powder coating, reducing the processing cost, and correspondingly improving the fineness of the powder coating, laying the foundation for the subsequent use of the coating. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A three-dimensional diagram of an integrated device for automatic grinding and screening of powder coatings proposed by the utility model;

[0026] Figure 2 This is a top perspective view of an integrated device for automatic grinding and screening of powder coatings proposed by the utility model;

[0027] Figure 3 A schematic diagram of a connecting plate of an integrated device for automatic grinding and screening of powder coatings proposed by the utility model;

[0028] Figure 4 This is a partial cross-sectional structural schematic diagram of an integrated device for automatic grinding and screening of powder coatings proposed by the utility model;

[0029] Figure 5 A schematic diagram of a grinding cylinder of an integrated device for automatic grinding and screening of powder coatings proposed by the utility model;

[0030] Figure 6 The utility model provides a schematic diagram of a sieve plate of an integrated device for automatic grinding and screening of powder coatings.

[0031] Legend:

[0032] 1. Connecting plate; 2. Support cylinder; 3. Grinding cylinder; 4. Double-head motor; 5. Moving cylinder; 6. Support column; 7. Adjusting threaded rod; 8. Connecting block; 9. Support rod; 10. Threaded sleeve; 11. Connecting rod one; 12. Connecting rod two; 13. Sieve plate two; 14. Grinding plate; 15. Sieve plate one; 16. Connecting cylinder two; 17. Gear; 18. Gear ring; 19. Screening cylinder; 20. Connecting cylinder one; 21. Connecting cylinder three; 22. Opening and closing door. DETAILED DESCRIPTION

[0033] 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.

[0034] Reference Figure 1-3 The utility model provides an embodiment: an integrated device for automatic grinding and screening of powder coatings, comprising a connecting plate 1, a supporting cylinder 2 is fixedly connected to the top of the connecting plate 1, two supporting columns 6 and a double-headed motor 4 are fixedly connected to the top of the connecting plate 1, the two supporting cylinders 2 and the double-headed motor 4 are distributed in a ring array, the supporting columns 6 and the tops of the double-headed motor 4 are both provided with connecting rod mechanisms, wherein the output end of the double-headed motor 4 is fixed to the connecting rod mechanism, the top of the supporting cylinder 2 is fixedly connected to a grinding cylinder 3, two through holes are provided inside the grinding cylinder 3, a moving cylinder 5 is provided between the connecting rod mechanisms, and the side wall of the moving cylinder 5 is fixedly connected to a connecting block 8. The connecting rod mechanism comprises a connecting rod 1 11 and a connecting rod 2 12, the connecting rod 1 11 is rotatably connected to the top of the supporting column 6, the top of the connecting rod 11 is rotatably connected to the connecting rod 2 12, the moving cylinder 5 is fixedly connected between the connecting rod 2 12, and the output end of the double-headed motor 4 is fixedly connected to the connecting rod 1 11.

[0035] Reference Figure 5 The top wall of the connecting block 8 is fixedly connected to a support rod 9, the outer wall of the support rod 9 is fixedly connected to a threaded sleeve 10, the inner thread of the threaded sleeve 10 is threadedly connected to an adjusting threaded rod 7, the bottom end of the adjusting threaded rod 7 is fixedly connected to a grinding disc 14, and the grinding disc 14 is rotatably connected to the inside of the grinding cylinder 3 and fits against the bottom wall inside the grinding cylinder 3.

[0036] When using the device, first pour the raw material into the grinding cylinder 3. The material of the grinding cylinder 3 is carefully selected and made of high-strength and wear-resistant ceramic material to ensure that stable performance can be maintained during the long-term grinding process. Next, according to the thickness of the powder coating, the distance between the grinding disc 14 and the grinding cylinder 3 can be adjusted. This adjustment process is very simple. The grinding disc 14 can be moved down by simply twisting the adjustment threaded rod 7. This flexible distance adjustment mechanism enables the device to adapt to the grinding of powder coatings of different specifications and requirements. When the distance of the grinding disc 14 is adjusted, the double-headed motor 4 starts to work. The driving force of the double-headed motor 4 is transmitted to the grinding cylinder 3 through the connecting rod mechanism. In this process, the connecting rod 11 rotates under the drive of the double-headed motor 4, and the connecting rod 2 12 is pushed out due to the rotation of the connecting rod 11. Since the connecting rods 2 12 are fixed on the grinding cylinder 3, they can push the grinding cylinder 3 to move. It is worth mentioning that the position of the connecting rod 11 is lower than the connecting rod 2 12, which enables the connecting rod 11 to rotate 360 ​​degrees. The grinding disc 14 rotates efficiently in the grinding cylinder 3 through the push of the connecting rod mechanism. The grinding disc 14 is equipped with ceramic balls, which rub against the ceramic balls inside the grinding cylinder 3 during the rotation process. This friction effect realizes the grinding of the powder coating, which not only improves the uniformity and efficiency of grinding, but also reduces the blind spots of grinding. The use of ceramic balls also greatly prolongs the service life of the grinding device and reduces the frequency of maintenance and replacement.

[0037] Reference Figure 4 and attached Figure 6 A connecting cylinder 2 16 is fixedly connected to the bottom of the connecting plate 1, and a screening cylinder 19 is rotatably connected to the lower surface of the connecting cylinder 2 16. A connecting cylinder 1 20 is arranged at the bottom of the screening cylinder 19. The screening cylinder 19 rotates between the connecting cylinder 2 16 and the connecting cylinder 1 20. The screening mechanism is located in the screening cylinder 19 and the connecting cylinder 1 20. A connecting cylinder 3 21 is fixedly connected to the bottom of the connecting cylinder 1 20. A screening mechanism is arranged on the lower surface of the connecting plate 1, and the screening mechanism includes a sieve plate 15 and a sieve plate 2 13. The sieve plate 15 is fixedly connected to the inside of the screening cylinder 19, and the sieve plate 2 13 is fixedly connected to the inner wall of the connecting cylinder 1 20. The sieve plate 15 and the sieve plate 2 13 are fitted together. A gear 17 is fixedly connected to the output end of the double-head motor 4. The gear 17 is located on one side of the screening cylinder 19. A gear ring 18 is fixedly connected to the outer wall of the screening cylinder 19, and the gear ring 18 is meshed with the gear 17. A switch door 22 is opened on one side of the connecting cylinder 3 21, and a handle is fixedly connected to the outer surface of the switch door 22.

[0038] First, the ground powder coating falls precisely into the support cylinder 2 through a specially designed through hole. This design ensures uniform distribution and efficient transmission of the coating. Subsequently, the powder coating passes through the connecting cylinder 2 16 and falls precisely on the sieve plate 15. The surface of the sieve plate 15 adopts a specially designed screen, and the bottom is cleverly equipped with a soft rubber column. At this stage, the other output end of the double-headed motor 4 begins to play a role, driving the gear 17 to rotate. Due to the precise meshing of the gear 17 and the gear ring 18, the screening cylinder 19 begins to rotate between the connecting cylinder 2 16 and the connecting cylinder 1 20. This design enables the sieve plate 15 to continue to rotate during the grinding of the powder coating. This rotation not only helps to evenly distribute the coating, but also improves the screening efficiency to a certain extent. As the sieve plate 15 continues to rotate, the powder coating gradually falls on the sieve plate 2 13. The holes on the surface of the sieve plate 2 13 are made of polyurethane screen material, which has excellent wear resistance, corrosion resistance and elasticity. When the rubber column is pressed onto the polyurethane screen, the powder that has not fallen off the surface can be pushed, thereby effectively avoiding the waste of powder. In addition, by releasing the rubber column after being pressed, the polyurethane screen can use its own elasticity to bounce off the entangled powder. Subsequently, the powder falls on the sieve plate 2 13 due to its own gravity and is screened again. This design not only improves the screening efficiency of the powder, but also ensures the purity and quality of the coating. Finally, the screened powder coating falls into the connecting tube 3 21. When the powder needs to be taken out, it can be easily taken out by simply pulling open the switch door 22. This design is both easy to operate and ensures the safety of the production process.Working principle: When using the device, first pour the raw material into the grinding cylinder 3, and the distance between the grinding disc 14 and the grinding cylinder 3 can be adjusted according to the thickness of the powder coating. The grinding disc 14 can be moved down by turning the adjusting threaded rod 7, so as to adjust the distance of the grinding disc 14. At this time, the double-headed motor 4 drives the connecting rod 11 on the top of the double-headed motor 4 to rotate, and the connecting rod 2 12 is pushed out due to the effect of the connecting rod. Since the connecting rod 2 12 is fixed on the grinding cylinder 3, the remaining connecting rods 2 12 can be pushed to move. The connecting rod 1 11 is lower than the position of the connecting rod 2 12, so that the connecting rod 1 11 can rotate 360 ​​degrees. Due to the push of the connecting rod mechanism, the grinding disc 14 can rotate in the grinding cylinder 3, and the ceramic balls on the grinding disc 14 rub against the ceramic balls inside the grinding cylinder 3, so as to achieve the grinding effect. The ground powder coating falls into the supporting cylinder 2 through the through hole, and then passes through the connecting cylinder 2 16 and falls into the sieve disc 15 At this time, the other output end of the double-headed motor 4 drives the gear 17 to rotate, and because the gear 17 is meshed with the gear ring 18, the screening cylinder 19 on the inner side of the gear ring 18 is driven to rotate between the connecting cylinder 2 16 and the connecting cylinder 1 20, so that the sieve plate 15 can also be driven to rotate during the grinding of the powder coating. The surface of the sieve plate 15 is a sieve, and the bottom is a soft rubber column, which falls on the sieve plate 2 13 through the sieve plate 15, and the sieve plate 15 keeps rotating. The holes on the surface of the sieve plate 2 13 are provided with polyurethane sieve material. The rubber column is pressed onto the polyurethane sieve to push the powder that has not fallen on the surface, thereby avoiding the waste of powder. Here, the rubber column can also be pressed and then released, so that the polyurethane sieve will bounce off the entangled powder due to its own elasticity, and then fall on the sieve plate 2 13 due to its own gravity for screening again. After screening, the powder coating falls into the connecting cylinder 3 21, and the powder can be taken out by opening the switch door 22.

[0039] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An integrated device for automatic grinding and screening of powder coatings, comprising a connecting plate (1), characterized in that: The top of the connecting plate (1) is fixedly connected to a support cylinder (2), the top of the connecting plate (1) is fixedly connected to two support columns (6) and a double-headed motor (4), the two support cylinders (2) and the double-headed motor (4) are arranged in a ring array, the tops of the support columns (6) and the double-headed motor (4) are both provided with connecting rod mechanisms, wherein the output end of the double-headed motor (4) is fixed to the connecting rod mechanism, the top of the supporting cylinder (2) is fixedly connected to a grinding cylinder (3), the grinding cylinder (3) has two through holes therein, a moving cylinder (5) is provided between the connecting rod mechanisms, the side wall of the moving cylinder (5) is fixedly connected to a connecting block (8), the top wall of the connecting block (8) is fixedly connected to a support rod (9), the outer wall of the support rod (9) is fixedly connected to a threaded sleeve (10), the threaded sleeve (10) is internally threadedly connected to an adjusting threaded rod (7), the bottom end of the adjusting threaded rod (7) is fixedly connected to a grinding disc (14), and a screening mechanism is provided on the lower surface of the connecting plate (1).

2. The automatic powder grinding and screening integrated device for powder coating according to claim 1, characterized in that: The connecting rod mechanism comprises a connecting rod 1 (11) and a connecting rod 2 (12), wherein the connecting rod 1 (11) is rotatably connected to the top of the support column (6), the top of the connecting rod 1 (11) is rotatably connected to the connecting rod 2 (12), the moving cylinder (5) is fixedly connected between the connecting rods 2 (12), and the output end of the double-headed motor (4) is fixedly connected to the connecting rod 1 (11).

3. The automatic grinding and screening integrated device for powder coating according to claim 1, characterized in that: A second connecting cylinder (16) is fixedly connected to the bottom of the connecting plate (1), a screening cylinder (19) is rotatably connected to the lower surface of the second connecting cylinder (16), a first connecting cylinder (20) is arranged at the bottom of the screening cylinder (19), the screening cylinder (19) rotates between the second connecting cylinder (16) and the first connecting cylinder (20), the screening mechanism is located in the screening cylinder (19) and the first connecting cylinder (20), and a third connecting cylinder (21) is fixedly connected to the bottom of the first connecting cylinder (20).

4. The automatic grinding and screening integrated device for powder coating according to claim 1, characterized in that: The screening mechanism comprises a sieve plate 1 (15) and a sieve plate 2 (13), wherein the sieve plate 1 (15) is fixedly connected to the inside of a screening cylinder (19), and the sieve plate 2 (13) is fixedly connected to the inner wall of a connecting cylinder 1 (20), and the sieve plate 1 (15) and the sieve plate 2 (13) are in close contact with each other.

5. The automatic grinding and screening integrated device for powder coating according to claim 1, characterized in that: The output end of the double-headed motor (4) is fixedly connected to a gear (17), and the gear (17) is located on one side of the screening drum (19).

6. The automatic powder grinding and screening integrated device for powder coating according to claim 3, characterized in that: A toothed ring (18) is fixedly connected to the outer wall of the screening cylinder (19), and the toothed ring (18) is meshed with the gear (17).

7. The automatic grinding and screening integrated device for powder coating according to claim 1, characterized in that: The grinding disc (14) is rotatably connected to the inside of the grinding cylinder (3) and fits against the inner bottom wall of the grinding cylinder (3).

8. The automatic powder grinding and screening integrated device for powder coating according to claim 3, characterized in that: A switch door (22) is provided on one side of the connecting tube 3 (21), and a handle is fixedly connected to the outer surface of the switch door (22).

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