A screening device for powder coating processing

Abstract

This utility model relates to the field of powder coating processing technology, and more particularly to a screening device for powder coating processing. It mainly addresses the common problems in powder coating screening processes, such as uneven feeding, increased pressure on the filter screen, and powder accumulation in one area of ​​the filter screen, making it difficult to disperse and affecting filtration efficiency. The proposed technical solution includes a processing box and a controller. The bottom wall opening of the processing box is equipped with a collection box for easy collection of powder materials. An inlet on the side wall of the processing box is equipped with a feeding assembly, which includes a feeding cylinder. This utility model achieves uniform powder delivery while reducing pressure on the screening structure, achieving the purpose of vibratory screening of powder materials, and facilitating the dispersion of powder coatings and uniform screening of powder materials.

Description

Technical Field

[0001] This utility model relates to the field of powder coating processing technology, and in particular to a screening device for powder coating processing. Background Technology

[0002] Powder coatings are coatings that exist in dry powder form and possess numerous unique advantages, leading to their widespread application in modern industry and daily life. Powder coatings do not contain organic solvents, and their preparation and application processes do not generate volatile organic compounds, making them environmentally friendly. Currently, the production process of powder coatings requires filtration and screening to remove impurities from the powder, improve powder quality, and reduce powder agglomeration, which could affect subsequent use. Typically, the powder coating is poured onto a vibrating screen, where a vibrating motor installed beneath the screen filters and screens the powder.

[0003] However, the common powder coating screening process is prone to uneven feeding, which leads to increased pressure on the filter screen plate and causes the powder coating to accumulate in one place on the filter screen plate, making it difficult to disperse the powder coating on the filter screen plate and affecting the filtration and screening efficiency. In view of this, we propose a screening device for powder coating processing. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a screening device for powder coating processing.

[0005] The technical solution of this utility model: A screening device for powder coating processing, including a processing box and a controller. The bottom wall opening of the processing box is provided with a collection box for collecting powder materials. An inlet on the side wall of the processing box is equipped with a feeding assembly. The feeding assembly includes a feeding cylinder. A motor is installed on the side wall of the feeding cylinder. The output end of the motor is connected to a first rotating shaft. An auger and a first bevel gear are sleeved on the outer surface wall of the first rotating shaft. A storage box is connected to the top wall opening of the feeding cylinder. A rotating assembly and a filtering assembly are installed inside the processing box. The rotating assembly includes a second rotating shaft. A second bevel gear is adjusted on the outer wall of the second rotating shaft. A connecting rod and a lever are provided on the outer wall of the second rotating shaft. The bottom ends of multiple connecting rods are connected to a rotating ring. A first protrusion is distributed in a circular array on the bottom wall of the rotating ring. The filtering assembly includes a filter screen plate. A second protrusion is distributed in a circular array on the top wall of the filter screen plate. A C-shaped component, a vertical shaft, and a spring are distributed in an array on the outer wall of the filter screen plate.

[0006] Preferably, the bottom opening of the storage box is connected to the inside of the feeding cylinder, a sealing plate is provided at the top opening of the storage box, and a bracket is connected to the bottom wall of the feeding cylinder.

[0007] Preferably, casters are installed on the bottom wall of the collection box, and guide rods are symmetrically welded on the top wall of the collection box.

[0008] Preferably, a bearing seat is provided at the top end of the second rotating shaft, the bearing seat is installed on the inner wall of the top of the processing box, and the second bevel gear meshes with the first bevel gear.

[0009] Preferably, symmetrical limit grooves are formed on the outer wall of the second rotating shaft, and limit sliders are installed on the opposite side walls of the two dials, with the two limit sliders respectively embedded in the corresponding limit grooves.

[0010] Preferably, the outer wall of the filter screen plate is provided with a notch, and an opening block is installed in each of the notches. The ends of the multiple vertical shafts pass through the openings on the opening blocks, and the two ends of the two vertical shafts are connected to the top and bottom walls of the inner surface of the shaped part.

[0011] Preferably, a stabilizing rod is fitted onto the outer surface wall of the second rotating shaft, and a first rotating hole is formed in the middle of the stabilizing rod. A first bearing is arranged in the first rotating hole and fitted onto the outer wall of the second rotating shaft.

[0012] Compared with the prior art, the present invention has the following beneficial technical effects:

[0013] This invention uses a starting motor to drive a first rotating shaft, which in turn drives an auger to rotate. This causes a second rotating shaft to rotate under the meshing action of a second bevel gear and a first bevel gear. The second rotating shaft, in conjunction with a connecting rod, drives a rotating ring to rotate. In the rotating state, a first protrusion engages with a vertical shaft mounted on a filter screen plate. Guided and reset by the vertical shaft and a spring, the powder coating entering the filter screen plate is vibrated and screened to remove impurities and improve the quality of the powder coating. In the rotating state, the second rotating shaft, in conjunction with a limit slider, drives a dial plate to rotate, achieving automatic cleaning of the top of the filter screen plate. It also evenly disperses the powder coating, reducing the risk of clogging and improving the screening and filtration efficiency of the filter screen plate. Due to the rotation of the first rotating shaft, the vertical shaft can evenly deliver the powder coating to the top of the filter screen plate, reducing the screening and filtration pressure on the filter screen plate. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a screening device for powder coating processing;

[0015] Figure 2 yes Figure 1 A schematic diagram of the frontal cross-sectional structure;

[0016] Figure 3 yes Figure 1 A three-dimensional structural diagram of the central feeding assembly;

[0017] Figure 4 yes Figure 2 A three-dimensional structural diagram of the combination of the rotating component and the filter component.

[0018] Reference numerals: 1. Processing box; 2. Controller; 3. Collection box; 4. Caster wheel; 5. Feeding assembly; 51. Feeding cylinder; 52. Motor; 53. First rotating shaft; 54. Screwdriver; 55. First bevel gear; 6. Storage box; 7. Rotating assembly; 71. Second rotating shaft; 72. Second bevel gear; 73. Stabilizing bar; 74. Connecting rod; 75. Rotating ring; 76. First protrusion; 77. Paddle plate; 78. Limiting slider; 79. Bearing seat; 8. Filter assembly; 81. Filter screen plate; 82. Second protrusion; 83. C-shaped part; 84. Vertical shaft; 85. Spring; 9. Guide rod; 10. Sealing plate; 11. Support. Detailed Implementation

[0019] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0020] Example

[0021] like Figures 1 to 4 As shown, the present invention proposes a screening device for powder coating processing, including a processing box 1 and a controller 2. The back wall of the processing box 1 has an opening, and a door is hinged at the opening for easy cleaning of the processing box 1. The controller 2 is fixedly installed on the wall of the processing box 1 facing forward for easy operation by the operator. The top opening of the collection box 3 corresponds to the bottom opening of the processing box 1, which is conducive to collecting the powder coating discharged from the processing box 1. Multiple casters 4 are installed on the bottom wall of the collection box 3 to support and assist in the movement of the collection box 3. Two guide rods 9 are symmetrically installed on the top wall of the collection box 3, and guide grooves are symmetrically opened on the bottom wall of the processing box 1. The two guide rods 9 are respectively inserted into the corresponding guide grooves, so that the collection box 3 can be easily moved and picked up under the guidance of the guide rods 9 and the guide grooves.

[0022] Furthermore, the feeding assembly 5 is installed at the inlet on the side wall of the processing box 1. The feeding assembly 5 includes a feeding cylinder 51, a motor 52, a first rotating shaft 53, an auger 54, and a first bevel gear 55. The discharge end of the feeding cylinder 51 is fixedly connected to the inlet on the side wall of the processing box 1, which facilitates the introduction of powder coating into the processing box 1. The top structure of the support 11 is fixedly connected to the outside of the feeding cylinder 51, and the side wall of the support 11 is fixedly connected to the side wall of the processing box 1, which provides support for the feeding cylinder 51. The discharge end of the storage box 6 is connected to the inlet of the top opening of the feeding cylinder 51, which is conducive to introducing the powder coating into the feeding cylinder 51. The storage box 6 can be used to temporarily store the powder coating, which is convenient for subsequent uniform feeding. Hinges are symmetrically installed on the side wall of the storage box 6. The thin sheet of the hinge is connected to the side wall of the sealing plate 10, which is convenient for the auxiliary sealing plate 10 to be flipped, which is conducive to closing the top opening of the storage box 6.

[0023] The motor 52 is fixedly installed on the side wall of the feeding cylinder 51. A second rotating hole is provided on the side wall of the feeding cylinder 51, and a sealed bearing is arranged in the second rotating hole. The first rotating shaft 53, the auger 54 and the first bevel gear 55 are respectively arranged in the feeding cylinder 51 and the processing box 1. One end of the first rotating shaft 53 is inserted into the second rotating hole and connected to the output end of the motor 52, so that it can rotate under the drive of the motor 52. The auger 54 and the first bevel gear 55 are both fixedly sleeved on the outer wall of the first rotating shaft 53, which is conducive to driving the auger 54 to evenly convey the powder coating into the processing box 1 under the rotation of the first rotating shaft 53, and avoiding the impact of too much or too little feeding on the screening and filtration of the coating.

[0024] Furthermore, the rotating assembly 7 is installed inside the processing box 1. The rotating assembly 7 includes a second rotating shaft 71, a second bevel gear 72, a stabilizing rod 73, a connecting rod 74, a rotating ring 75, a first protrusion 76, a lever 77, a limiting slider 78, and a bearing seat 79. The bearing seat 79 is fixedly installed on the inner wall of the top of the processing box 1. The top end of the second rotating shaft 71 is connected to the rotating end of the bearing seat 79. The stabilizing rod 73 is fitted onto the outer wall of the second rotating shaft 71 through a first rotating hole in the middle part, so that the first bearing in the first rotating hole is fitted onto the outer wall of the second rotating shaft 71. The two ends of the stabilizing rod 73 are fixedly connected to the inner wall of the processing box 1 to stabilize the rotation at the bottom end of the second rotating shaft 71. The second bevel gear 72 is fixedly fitted onto the outer surface wall of the second rotating shaft 71 and meshes with the first bevel gear 55, which is beneficial to drive the second rotating shaft 71 to rotate through the meshing of the second bevel gear 72 and the first bevel gear 55 under the rotation of the first rotating shaft 53.

[0025] Multiple connecting rods 74 are arranged in a circular array. The connecting rods 74 are welded to the outer wall of the second rotating shaft 71 near the outer wall, which is conducive to driving the connecting rods 74 to rotate under the rotation of the second rotating shaft 71. The bottom ends of the connecting rods 74 are fixedly connected to the top wall of the rotating ring 75, which is convenient for driving the rotating ring 75 to rotate. Multiple first protrusions 76 are fixedly installed on the bottom wall of the rotating ring 75, and the multiple first protrusions 76 are arranged in a circular array. Two limiting sliders 78 are symmetrically embedded in two limiting grooves symmetrically opened on the outer wall of the second rotating shaft 71. The opposite faces of the two levers 77 are fixedly connected to the back-opposite walls of the two limiting sliders 78, which is conducive to the lifting and lowering movement with the assistance of the limiting sliders 78 and the limiting grooves, avoiding affecting the subsequent vibrating screening. The two levers 77 can rotate under the drive of the second rotating shaft 71, which is conducive to moving the powder coating, making it evenly distributed, and avoiding the powder coating from accumulating in one place, which would affect its screening and filtration.

[0026] Furthermore, the filter assembly 8 is installed on the inner wall of the processing box 1. The filter assembly 8 includes a filter screen plate 81, second protrusions 82, U-shaped parts 83, a vertical shaft 84, and a spring 85. The outer wall of the filter screen plate 81 is in close contact with the inner wall of the processing box 1 and is set in a non-fixed connection state to facilitate subsequent vibration screening. Multiple second protrusions 82 are distributed in a ring array on the top wall of the filter screen plate 81 and are fixedly connected to the top wall of the filter screen plate 81. This facilitates the vibration of the filter screen plate 81 in conjunction with the first protrusion 76, thereby achieving the purpose of vibration screening of the powder coating falling onto the filter screen plate 81. Multiple U-shaped parts 83 are arranged in a ring array. The state is fixedly installed on the inner wall of the processing box 1. The top and bottom ends of multiple vertical shafts 84 are fixedly connected to the top and bottom walls of the inner surface of the corresponding U-shaped parts 83, and are set on the opening blocks in the notch of the filter screen plate 81. The opening blocks cooperate with the vertical shafts 84 to assist the filter screen plate 81 in raising and lowering. Each U-shaped part 83 is symmetrically provided with springs 85. The opposite ends of the two springs 85 are connected to the top and bottom walls of the filter screen plate 81, and the opposite ends of the two springs 85 are connected to the top inner wall and bottom wall of the U-shaped part 83, which are used to assist the filter screen plate 81 in raising and lowering back and forth, which is beneficial to the vibrating screening operation of powder coating.

[0027] In this embodiment, when the powder coating needs to be vibrated and screened for filtration, the powder coating can be introduced into the storage box 6 by opening the sealing plate 10. After the introduction is completed, the sealing plate 10 is flipped to seal the top opening of the storage box 6, reducing the leakage of dust generated during subsequent vibrating and screening filtration and preventing pollution of the surrounding environment. The motor 52 drives the first rotating shaft 53 to drive the auger 54 and the first bevel gear 55 to rotate. The rotation of the auger 54 can evenly introduce the coating into the processing box 1, providing uniform material for subsequent screening and filtration operations, avoiding excessive or insufficient material supply, which would affect the subsequent vibrating and screening operations. A bevel gear 55 engages with a second bevel gear 72 to drive a second rotating shaft 71 to rotate. The rotating shaft 71, in its rotating state, drives a rotating ring 75 to rotate via a connecting rod 74. This allows the first protrusion 76, in its rotating state, to actuate the second protrusion 82, thereby causing the filter screen plate 81 to vibrate. The vibrating filter screen plate 81 achieves sieving and filtration of the powder coating, improving the quality of the coating. Furthermore, under the rotation of the actuating plate 77, the powder coating on the filter screen plate 81 can be evenly distributed to prevent the powder coating from accumulating in one place, which would affect the uniform filtration and sieving of the powder coating, improve sieving efficiency, and reduce the risk of clogging.

[0028] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A screening device for powder coating processing, comprising a treatment box (1) and a controller (2), characterized in that: The bottom wall opening of the processing box (1) is provided with a collection box (3) for collecting powder materials. A feeding assembly (5) is installed at the inlet on the side wall of the processing box (1). The feeding assembly (5) includes a feeding cylinder (51). A motor (52) is installed on the side wall of the feeding cylinder (51). The output end of the motor (52) is connected to a first rotating shaft (53). An auger (54) and a first bevel gear (55) are sleeved on the outer surface of the first rotating shaft (53). A storage box (6) is connected to the top wall opening of the feeding cylinder (51). A rotating assembly (7) and a filtering assembly (8) are installed inside the processing box (1). The moving component (7) includes a second rotating shaft (71), a second bevel gear (72) is adjusted on the outer wall of the second rotating shaft (71), a connecting rod (74) and a lever (77) are provided on the outer wall of the second rotating shaft (71), a rotating ring (75) is connected to the bottom end of a plurality of connecting rods (74), and a first protrusion (76) is arranged in a ring array on the bottom wall of the rotating ring (75). The filter component (8) includes a filter screen plate (81), a second protrusion (82) is arranged in a ring array on the top wall of the filter screen plate (81), and a U-shaped part (83), a vertical shaft (84) and a spring (85) are arranged in an array on the outer wall of the filter screen plate (81).

2. A powder coating processing screening apparatus according to claim 1, wherein, The bottom opening of the storage box (6) is connected to the inside of the feeding cylinder (51), a sealing plate (10) is provided at the top opening of the storage box (6), and a bracket (11) is connected to the bottom wall of the feeding cylinder (51).

3. A powder coating processing screening apparatus according to claim 1, wherein, The bottom wall of the collection box (3) is equipped with casters (4), and guide rods (9) are symmetrically welded to the top wall of the collection box (3).

4. A powder coating processing screening apparatus according to claim 1, wherein, A bearing seat (79) is provided at the top end of the second rotating shaft (71). The bearing seat (79) is installed on the inner wall of the top of the processing box (1). The second bevel gear (72) meshes with the first bevel gear (55).

5. A powder coating processing screening apparatus according to claim 1, wherein, The second rotating shaft (71) has symmetrically opened limit grooves on its outer wall, and limit sliders (78) are installed on the opposite side walls of the two dials (77), and the two limit sliders (78) are respectively embedded in the limit grooves corresponding to their positions.

6. A powder coating processing screening apparatus according to claim 1, wherein, The outer wall of the filter screen plate (81) has a notch, and an opening block is installed in each of the notches. The ends of the multiple vertical shafts (84) pass through the openings on the opening blocks, and the two ends of the two vertical shafts (84) are connected to the top and bottom walls of the inner surface of the shaped part (83).

7. A powder coating processing screening apparatus according to claim 1, wherein, A stabilizing rod (73) is fitted on the outer surface wall of the second rotating shaft (71). A first rotating hole is opened in the middle part of the stabilizing rod (73), and a first bearing is arranged in the first rotating hole. The first bearing is fitted on the outer wall of the second rotating shaft (71).

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