Metal powder coating screening device

Abstract

The utility model belongs to the technical field of metal powder coating processing, and particularly discloses a metal powder coating screening device which comprises a device frame, the top of the device frame is rotationally connected with a screening pipe frame, a motor is fixedly installed at the top of the device frame, and the output end of the motor is fixedly connected with one end of the screening pipe frame. The device frame is provided with a material distributing hopper, the top of the material distributing hopper is provided with a collecting hopper, the inner surface of the material distributing hopper is rotationally connected with a rotating shaft through a driving mechanism, and the outer surface of the rotating shaft is fixedly sleeved with a material distributing plate. According to the metal powder coating screening device, through rotary screening in the screening pipe frame, powder coating can be preliminarily screened for a longer time and on a larger area, residues of large particles and impurities in the primary screening process are reduced, two sets of vibrating secondary screening drums are used in the secondary screening process and matched with a spiral screen, finer screening is achieved, and the screening efficiency is improved. And the probability of reworking and screening is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of metal powder coating processing, and in particular to a metal powder coating screening device. Background Art

[0002] Metal powder coating is a powdered coating used to coat surfaces. Its main ingredients are metal powder (such as aluminum, nickel, or zinc) and resin. It is applied to the substrate using electrostatic spray technology and then cured by heating in an oven to form a hard and durable coating. This coating is commonly used in automobiles, home appliances, and industrial equipment.

[0003] Metal powder coatings require screening to ensure uniformity and quality. Screening can remove large particles, impurities or agglomerates in the powder. Currently, in the process of screening metal powder coatings, it is generally directly sifted by sliding it directly on an inclined screen. This screening method has a low screening degree and usually requires multiple rounds of screening. Utility Model Content

[0004] In view of this, the purpose of the present invention is to solve the shortcomings of the background technology and to propose a metal powder coating screening device to solve the problems existing in the prior art.

[0005] In order to achieve the above purpose, the utility model provides a metal powder coating screening device, including a device frame, the top of the device frame is rotatably connected to a screening pipe frame, the top of the device frame is fixedly installed with a motor, the output end of the motor is fixedly connected to one end of the screening pipe frame, a distribution hopper is provided on the device frame, a collecting hopper is provided on the top of the distribution hopper, the inner surface of the distribution hopper is rotatably connected to a rotating shaft through a driving mechanism, the outer surface of the rotating shaft is fixedly sleeved with a distribution plate, and the bottom end of the distribution hopper is provided with a dispersion and material guiding mechanism.

[0006] Preferably, the driving mechanism includes a fixed shaft fixedly connected to the outer surface of the distribution hopper, and the outer surface of the fixed shaft is rotatably connected to an electric push rod. The distribution plate can be driven by the driving mechanism so that the metal powder coating connected to the distribution hopper is transferred during the back-and-forth swing of a certain amplitude, thereby allowing the metal powder coating to be introduced into two groups of secondary screen drums for secondary screening.

[0007] Preferably, the output end of the electric push rod is fixedly connected to a concave plate, and a plate shaft is fixedly penetrated through the inner side of the concave plate.

[0008] Preferably, the outer surface of the plate shaft is rotatably connected to a drive plate, and one end of the drive plate away from the plate shaft is fixedly connected to the outer surface of the rotating shaft.

[0009] Preferably, the dispersed material guiding mechanism includes a secondary screen cylinder fixedly connected to the output end at the bottom of the distribution hopper, and there are two groups of secondary screen cylinders. The two groups of secondary screen cylinders are provided with spiral screens inside. The metal powder coating in the distribution hopper can be divided and screened through the dispersed material guiding mechanism, which can effectively reduce the difficulty of screening (divided into two groups of screening tasks).

[0010] Preferably, a vibrator is fixedly mounted on the outer surface of the secondary screen drum, and a drum cover is provided on the secondary screen drum.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. The metal powder coating screening device uses rotary screening in the screening tube frame. The powder coating can be initially screened for a longer time and over a larger area, reducing the residual large particles and impurities during the initial screening. The secondary screening uses two sets of vibrating secondary screen drums, combined with spiral screens, to achieve more detailed screening and reduce the chance of rework screening.

[0013] 2. The metal powder coating screening device has a dispersed material guiding mechanism that can distribute the metal powder coating in the hopper and make it enter the two sets of secondary screen drums. Thus, through the screening in the two sets of secondary screen drums, the workload of one-time screening is reduced, and the screening effect is indirectly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of this application;

[0015] Figure 2 This is a schematic diagram of the internal structure of the hopper for this application;

[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the secondary screen drum in this application.

[0017] Among them: 1. Device frame; 2. Screening tube frame; 3. Motor; 4. Distribution hopper; 5. Collection hopper; 6. Rotating shaft; 7. Distribution plate; 8. Fixed shaft; 9. Electric push rod; 10. Concave plate; 11. Plate shaft; 12. Drive plate; 13. Secondary screen drum; 14. Spiral screen; 15. Vibrator; 16. Drum cover. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0019] See also Figure 1-3A metal powder coating screening device includes a device frame 1, the top of the device frame 1 is rotatably connected to a screening pipe frame 2, the top of the device frame 1 is fixedly installed with a motor 3, the output end of the motor 3 is fixedly connected to one end of the screening pipe frame 2, a distribution hopper 4 is provided on the device frame 1, and a collecting hopper 5 is provided on the top of the distribution hopper 4. The inner surface of the distribution hopper 4 is rotatably connected to a rotating shaft 6 through a driving mechanism, and the outer surface of the rotating shaft 6 is fixedly sleeved with a distribution plate 7, and the bottom end of the distribution hopper 4 is provided with a dispersion and material guiding mechanism.

[0020] Through the above technical solution, during use, the device first puts the metal powder coating into the screening tube rack 2, and the motor 3 drives the screening tube rack 2 to perform preliminary screening on the metal powder coating during the rotation process (during this period, the screening tube rack 2 can allow a small volume of powder coating to be screened smoothly due to the presence of gaps). Then, in the material distribution process of the distribution hopper 4 and the distribution plate 7, the metal powder coating can be screened for a second time in conjunction with the dispersion and guiding mechanism, while effectively reducing the task amount of one-time screening, which indirectly improves the screening effect.

[0021] Specifically, the driving mechanism includes a fixed shaft 8 fixedly connected to the outer surface of the distribution hopper 4, and the outer surface of the fixed shaft 8 is rotatably connected to the electric push rod 9.

[0022] Through the above technical solution, the angle of the electric push rod 9 will produce a certain angle of deflection during the process of pushing and pulling the concave plate 10. Therefore, the fixed shaft 8 is designed to adapt to the angle deflection of the electric push rod 9.

[0023] Specifically, the output end of the electric push rod 9 is fixedly connected to the concave plate 10 , and the inner side of the concave plate 10 is fixedly penetrated by a plate shaft 11 .

[0024] Through the above technical solution, after the concave plate 10 is pushed and pulled, it will lift one end of the driving plate 12 through the plate shaft 11.

[0025] Specifically, the outer surface of the plate shaft 11 is rotatably connected to a driving plate 12 , and one end of the driving plate 12 away from the plate shaft 11 is fixedly connected to the outer surface of the rotating shaft 6 .

[0026] Through the above technical solution, after one end of the driving plate 12 is pulled, the other end will drive the rotating shaft 6 to rotate, thereby causing the dividing plate 7 to swing.

[0027] Specifically, the dispersed material guiding mechanism includes a secondary screen drum 13 fixedly connected to the output end of the bottom of the distribution hopper 4, and there are two groups of secondary screen drums 13. The two groups of secondary screen drums 13 are provided with spiral screens 14 inside.

[0028] Through the above technical solution, the two groups of secondary screen drums 13 are respectively connected to the two groups of output ends at the bottom of the distribution hopper 4, and the spiral screen 14 is spirally arranged in the secondary screen drum 13, and the edge of the spiral screen 14 is in contact with the inner wall of the secondary screen drum 13.

[0029] Specifically, a vibrator 15 is fixedly mounted on the outer surface of the secondary screen drum 13 , and a drum cover 16 is provided on the secondary screen drum 13 .

[0030] Through the above technical solution, the vibrator 15 can drive the spiral screen 14 to vibrate when vibrating, and the metal powder coating remaining on the spiral screen 14 can be cleaned by opening the cylinder cover 16.

[0031] Working principle: When the device is in use, the metal powder coating is first put into the screen tube frame 2 from the end of the screen tube frame 2, and then the motor 3 is turned on to drive the screen tube frame 2 to rotate. During this process, the metal powder coating with a larger volume will be screened from the gap of the screen tube frame 2, collected by the collecting bucket 5 and fall into the distribution bucket 4, and then the electric push rod 9 is turned on to push and pull the concave plate 10 back and forth. During this process, the concave plate 10 will pull the driving plate 12 through the plate shaft 11, thereby rotating the rotating shaft 6 through the driving plate 12, and finally make the distribution plate 7 swing back and forth, and respectively transfer the metal powder coating to the two sets of secondary screen drums 13. At the same time, the vibrator 15 needs to be turned on to make the secondary screen drum 13 vibrate, and the metal powder coating is During the process of spiral screening and falling along the spiral screen 14 in the secondary screen drum 13, the vibration of the vibrator 15 can accelerate the screening of the coating, improve the screening speed and efficiency, reduce the screening time, and improve the thoroughness of the screening, thereby achieving the effect of secondary screening of the metal powder coating. The screening of the two sets of secondary screen drums 13 also greatly reduces the screening task volume (the same batch of metal powder coating is screened by two sets of spiral screens 14), indirectly improving the screening effect (the screening amount is less, and the screened plastic and effect are better), so that the metal powder coating does not need to be reworked and screened multiple times during the screening process. After the screening is completed, the drum cover 16 is opened to uniformly clean the metal powder coating remaining on the spiral screen 14.

[0032] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A metal powder coating screening device, comprising a device frame (1), characterized in that: The top of the device frame (1) is rotatably connected to a screening pipe frame (2), a motor (3) is fixedly installed on the top of the device frame (1), an output end of the motor (3) is fixedly connected to one end of the screening pipe frame (2), a distribution hopper (4) is provided on the device frame (1), a collecting hopper (5) is provided on the top of the distribution hopper (4), the inner surface of the distribution hopper (4) is rotatably connected to a rotating shaft (6) through a driving mechanism, a distribution plate (7) is fixedly sleeved on the outer surface of the rotating shaft (6), and a dispersion and guiding mechanism is provided at the bottom end of the distribution hopper (4).

2. A metal powder coating screening device according to claim 1, characterized in that: The driving mechanism comprises a fixed shaft (8) fixedly connected to the outer surface of the distribution hopper (4), and the outer surface of the fixed shaft (8) is rotatably connected to an electric push rod (9).

3. The metal powder coating screening device according to claim 2, characterized in that: The output end of the electric push rod (9) is fixedly connected to a concave plate (10), and a plate shaft (11) is fixedly penetrated through the inner side of the concave plate (10).

4. The metal powder coating screening device according to claim 3, characterized in that: The outer surface of the plate shaft (11) is rotatably connected to a drive plate (12), and one end of the drive plate (12) away from the plate shaft (11) is fixedly connected to the outer surface of the rotating shaft (6).

5. The metal powder coating screening device according to claim 1, characterized in that: The dispersed material guiding mechanism comprises a secondary screen drum (13) fixedly connected to the output end at the bottom of the distribution hopper (4), and the secondary screen drums (13) are in two groups, and spiral screens (14) are arranged inside the two groups of secondary screen drums (13).

6. The metal powder coating screening device according to claim 5, characterized in that: A vibrator (15) is fixedly mounted on the outer surface of the secondary screen drum (13), and a drum cover (16) is provided on the secondary screen drum (13).

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