Plastic product external spraying device

Abstract

The utility model discloses a plastic product exterior spraying device which comprises a spraying box, a fixing seat, a cleaning and deoiling mechanism, a primer spraying mechanism, a finish paint spraying mechanism and a drying mechanism, the fixing seat is fixedly arranged in the middle of the top in the spraying box, a first hollow support is fixedly arranged on one side of the fixing seat, and an alcohol tank is fixedly arranged in front of one side of the top of the spraying box. A first high-pressure pump is fixedly arranged on the other side of the alcohol tank, first spray heads are arranged on the inner side of the first hollow support in a communicating mode, a primer spraying mechanism is arranged behind one side in the spraying box, a finish paint spraying mechanism is arranged behind the other side in the spraying box, and a drying mechanism is arranged on the other side in the spraying box. According to the plastic part cleaning device, the alcohol tank and the first hollow support are communicated through the first high-pressure pump, cleaning and oil removal are achieved, and the problems that the surfaces of plastic parts are stained with oil stains, and direct spraying can affect coating attachment are solved; and hot air can be conveniently blown to the surface of the plastic part for drying after the primer and the finish are sprayed.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic product processing, in particular to an external spraying device for plastic products. Background Art

[0002] Plastic exterior spraying is a widely used surface treatment technology for various plastic products. It can not only improve the appearance of the product and make it more beautiful, but also provide an extra layer of protection, improve the durability and scratch resistance of the product. Before plastic exterior spraying, there are usually a series of pretreatment steps to ensure the adhesion and overall quality of the coating;

[0003] The utility model with application number 202122040096.2 discloses a device for spraying externally of plastic products, wherein a cover plate is rotatably installed on the left side of the front wall of a box body, so that the box body can be sealed through the cover plate, a glass panel is fixedly installed inside the cover plate, and the spraying condition of the plastic product can be better observed through the glass panel, a discharge pipe connected through and connected is fixedly installed on the right side of the base, so that the paint collected inside the base can be discharged and recycled through the discharge pipe, a motor is fixedly installed inside the upper end of the support table, so that the placement plate and the plastic product can be driven to rotate by the motor, and the external part of the plastic product can be sprayed in a rotary manner, a left electric push rod and a right electric push rod are fixedly installed above the inner wall of the box body, so that the storage ring can be driven up and down by the left electric push rod to adjust the position, at which time the nozzle on the inner wall of the storage ring can spray the outer wall of the plastic product, and the air storage ring can be driven up and down by the right electric push rod to adjust the position, at which time the nozzle on the inner wall of the air storage ring can dry the external part of the plastic product;

[0004] However, before spraying, the surface of the plastic part may be contaminated with oil, hand sweat and release agent, etc., which will affect the adhesion of the coating and cause the coating to crack and fall off. The surface of the plastic part needs to be cleaned and degreased before spraying. The above-mentioned external spraying device for plastic products directly sprays the plastic product with color paint, lacks the pre-spraying of primer and drying functions. Therefore, the utility model proposes an external spraying device for plastic products to solve the problems existing in the prior art. Utility Model Content

[0005] In view of the above problems, the purpose of the utility model is to propose a plastic product external spraying device, which connects the alcohol tank and the first hollow bracket through a first high-pressure pump, so as to realize spraying alcohol on the surface of the plastic part for cleaning and degreasing before spraying, thereby solving the problem that the surface of the plastic part is stained with oil and direct spraying will affect the adhesion of the paint. The second hollow bracket is connected to the primer tank, so as to realize spraying the primer before spraying the topcoat, thereby improving the adhesion of the topcoat. The fourth hollow bracket is connected to the drying fan duct, so as to facilitate blowing hot air to dry the surface of the plastic part after spraying the primer and topcoat.

[0006] To achieve the purpose of the utility model, the utility model is implemented through the following technical solutions: a plastic product external spraying device, including a spray box, a fixed seat, a cleaning and oil removal mechanism, a primer spraying mechanism, a topcoat spraying mechanism and a drying mechanism, a fixed seat is fixedly provided in the middle of the top of the spray box, the cleaning and oil removal mechanism includes a first hollow bracket, an alcohol tank, a first high-pressure pump and a first nozzle, a first hollow bracket is fixedly provided on one side of the fixed seat, an alcohol tank is fixedly provided on the front of one side of the top of the spray box, a first high-pressure pump is fixedly provided on the other side of the alcohol tank, the first high-pressure pump is connected to the first hollow bracket by a pipeline, a first nozzle is arranged and connected on the inner side of the first hollow bracket, a primer spraying mechanism is provided at the rear of one side of the spray box, a topcoat spraying mechanism is provided at the rear of the other side of the spray box, and a drying mechanism is provided on the other side of the spray box.

[0007] A further improvement is that the primer spraying mechanism includes a second hollow bracket, a primer tank, a second high-pressure pump and a second nozzle. A second hollow bracket is fixedly provided at the rear of one side of the fixed seat, a primer tank is fixedly provided at the rear of one side of the spray box, and a second high-pressure pump is fixedly provided at the other side of the primer tank. The second high-pressure pump is connected to the second hollow bracket by a pipeline, and a second nozzle is arranged and connected inside the second hollow bracket.

[0008] A further improvement is that the topcoat spraying mechanism includes a third hollow bracket, a topcoat can, a third high-pressure pump and a third nozzle; a third hollow bracket is fixedly provided at the rear of the other side of the fixed seat; a topcoat can is fixedly provided at the rear of the other side of the spray box; a third high-pressure pump is fixedly provided on one side of the topcoat can; a pipeline is connected between the third high-pressure pump and the third hollow bracket; and a third nozzle is arranged and connected on the inner side of the third hollow bracket.

[0009] Further improvement is that the drying mechanism includes a fourth hollow bracket, a drying fan and an air outlet, a fourth hollow bracket is fixedly provided on the other side of the fixed base, a drying fan is fixedly provided on the other side of the spray box, the drying fan is connected to the fourth hollow bracket pipeline, and an air outlet is arranged and connected on the inner side of the fourth hollow bracket.

[0010] A further improvement is that a fixed plate is fixedly arranged at the lower part of the spray box, the fixed plate has openings at both sides, a motor is fixedly arranged at the middle of the bottom of the fixed plate, and a turntable is rotatably arranged at the middle of the upper part of the fixed plate.

[0011] A further improvement is that a positioning seat is fixedly provided on the turntable, a spring is fixedly provided around the edge of the positioning seat, and a positioning block is fixedly provided on the outer side of the spring.

[0012] A further improvement is that a discharge pipe is connected to the other side of the bottom of the spray box, and exhaust ports are opened above both sides of the spray box.

[0013] The beneficial effects of the utility model are as follows: the utility model connects the alcohol tank and the first hollow bracket through the first high-pressure pump, so that alcohol can be sprayed on the surface of the plastic part for cleaning and degreasing before spraying, which solves the problem that the surface of the plastic part is stained with oil and direct spraying will affect the adhesion of the paint. The second hollow bracket is connected to the primer tank, so that the primer can be sprayed before the topcoat is sprayed, thereby improving the adhesion of the topcoat. The fourth hollow bracket is connected to the drying fan duct, so that hot air can be blown to dry the surface of the plastic part after spraying the primer and topcoat. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the overall front cross-sectional view of the utility model;

[0015] Figure 2 It is a three-dimensional schematic diagram of the first hollow bracket of the utility model;

[0016] Figure 3 It is an overall top view of the utility model;

[0017] Figure 4 It is an enlarged schematic diagram of point A of the present utility model.

[0018] Among them: 1. Spray box; 2. Fixed seat; 3. First hollow bracket; 4. Alcohol tank; 5. First high-pressure pump; 6. First nozzle; 7. Second hollow bracket; 8. Primer tank; 9. Second high-pressure pump; 10. Second nozzle; 11. Third hollow bracket; 12. Topcoat tank; 13. Third high-pressure pump; 14. Third nozzle; 15. Fourth hollow bracket; 16. Drying fan; 17. Air outlet; 18. Fixed plate; 19. Motor; 20. Turntable; 21. Positioning seat; 22. Spring; 23. Positioning block; 24. Discharge pipe; 25. Exhaust outlet. DETAILED DESCRIPTION

[0019] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with an embodiment. The embodiment is only used to explain the present invention and does not constitute a limitation on the protection scope of the present invention.

[0020] according to Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the present embodiment provides a plastic product external spraying device, including a spray box 1, a fixing seat 2, a cleaning and oil removal mechanism, a primer spraying mechanism, a topcoat spraying mechanism and a drying mechanism. The fixing seat 2 is fixedly provided in the middle of the top of the spray box 1. The cleaning and oil removal mechanism includes a first hollow bracket 3, an alcohol tank 4, a first high-pressure pump 5 and a first nozzle 6. The first hollow bracket 3 is fixedly provided on one side of the fixing seat 2. The alcohol tank 4 is fixedly provided on the front side of the top of the spray box 1. The first high-pressure pump 5 is fixedly provided on the other side of the alcohol tank 4. The first high-pressure pump 5 and the first hollow bracket 3 are fixedly provided. The frames 3 are connected by pipes, a first nozzle 6 is arranged inside the first hollow bracket 3, a primer spraying mechanism is provided at the rear of one side of the spray box 1, a topcoat spraying mechanism is provided at the rear of the other side of the spray box 1, and a drying mechanism is provided at the other side of the spray box 1. The alcohol in the alcohol tank 4 is transported to the first hollow bracket 3 by starting the first high-pressure pump 5 and then sprayed out by the first nozzle 6, so as to effectively clean and disinfect the plastic products, dissolve the oil and release agent attached to the surface of the plastic parts, and solve the problem that the oil on the surface of the plastic parts will affect the adhesion of the paint.

[0021] The primer spraying mechanism includes a second hollow bracket 7, a primer tank 8, a second high-pressure pump 9 and a second nozzle 10. The second hollow bracket 7 is fixedly provided at the rear of one side of the fixed seat 2, and a primer tank 8 is fixedly provided at the rear of one side of the spray box 1. The second high-pressure pump 9 is fixedly provided on the other side of the primer tank 8. The second high-pressure pump 9 is connected to the second hollow bracket 7 by a pipeline, and a second nozzle 10 is arranged and connected inside the second hollow bracket 7. When the plastic parts are cleaned and degreased, the first high-pressure pump 5 is closed, and the second high-pressure pump 9 is opened to pump the primer in the primer tank 8 into the second hollow bracket 7 and then spray it out from the second nozzle 10, so as to realize the primer spraying on the plastic parts before the formal spraying, effectively increase the adhesion and fullness of the topcoat, and provide alkali resistance, corrosion resistance and other functions.

[0022] The topcoat spraying mechanism includes a third hollow bracket 11, a topcoat can, a third high-pressure pump 13 and a third nozzle 14. The third hollow bracket 11 is fixedly provided at the rear of the other side of the fixed seat 2, and a topcoat can is fixedly provided at the rear of the other side of the spray box 1. A third high-pressure pump 13 is fixedly provided on one side of the topcoat can. The third high-pressure pump 13 is connected to the third hollow bracket 11 by a pipeline, and a third nozzle 14 is arranged and connected on the inner side of the third hollow bracket 11. After the primer is sprayed and dried, the third high-pressure pump 13 is started to pump the topcoat can into the third hollow bracket 11, and then the third nozzle 14 sprays it out to spray the plastic parts.

[0023] The drying mechanism includes a fourth hollow bracket 15, a drying fan 16 and an air outlet 17. The fourth hollow bracket 15 is fixedly provided on the other side of the fixed seat 2, and the drying fan 16 is fixedly provided on the other side of the spray box 1. The drying fan 16 is connected to the fourth hollow bracket 15 by a pipeline. The inner side of the fourth hollow bracket 15 is arranged and connected with an air outlet 17. When the primer and the topcoat are sprayed respectively, the drying fan 16 is started to transport hot air into the fourth hollow bracket 15, and then the hot air is blown out from the air outlet 17 to blow and dry the primer and the topcoat.

[0024] A fixed plate 18 is fixedly provided at the lower part of the spray box 1, and the fixed plate 18 has openings on both sides. A motor 19 is fixedly provided in the middle of the bottom of the fixed plate 18, and a turntable 20 is rotatably provided in the middle above the fixed plate 18. A positioning seat 21 is fixedly provided on the turntable 20, and a spring 22 is fixedly provided around the edge of the positioning seat 21, and a positioning block 23 is fixedly provided on the outer side of the spring 22. Before spraying, the plastic part is placed in the middle of the fixed plate 18, and the spring 22 elastically pushes the positioning plate to fit around the inner wall of the plastic part to position the plastic part. After positioning, the motor 19 drives the turntable 20 to drive the plastic part to rotate, so as to achieve uniform spraying of the plastic part.

[0025] A discharge pipe 24 is provided on the other side of the bottom of the spray box 1. When the plastic parts are cleaned and sprayed, the alcohol and excess paint after cleaning automatically flow to the bottom of the spray box 1 and are then discharged from the discharge pipe 24. Exhaust ports 25 are provided above both sides of the spray box 1. When drying, hot air is blown in for drying and then discharged from the exhaust ports 25.

[0026] When the external spraying device for plastic products is spraying, the plastic part is placed on a turntable, and the positioning block is pushed by the elasticity of a spring to fit the inner wall of the plastic part for positioning. Before spraying, the spray box is closed, the motor is started to drive the turntable to rotate on the fixed plate, the first high-pressure pump is started to transport the alcohol in the alcohol tank to the first hollow bracket and then spray it from the first nozzle to clean and degrease the surface of the plastic part. After degreasing, the second high-pressure pump is started to pump the primer in the primer tank to the second hollow bracket and then spray it from the second nozzle to spray the primer on the surface of the plastic part. After spraying the primer, the drying fan is started to blow hot air to the fourth hollow bracket and blow out the dried primer from the air outlet. After the primer is dry, the third high-pressure pump is started to pump the topcoat in the topcoat tank to the third hollow bracket and then spray it from the third nozzle to spray the topcoat on the surface of the plastic part based on the primer. After the topcoat is sprayed, the drying fan is started again to blow hot air from the air outlet to dry the topcoat.

[0027] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A plastic product external spraying device, characterized in that: The invention comprises a spray box (1), a fixing seat (2), a cleaning and degreasing mechanism, a primer spraying mechanism, a topcoat spraying mechanism and a drying mechanism. The fixing seat (2) is fixedly provided in the middle of the top of the spray box (1). The cleaning and degreasing mechanism comprises a first hollow bracket (3), an alcohol tank (4), a first high-pressure pump (5) and a first nozzle (6). The first hollow bracket (3) is fixedly provided on one side of the fixing seat (2). The alcohol tank (4) is fixedly provided on the front of one side of the top of the spray box (1). The first high-pressure pump (5) is fixedly provided on the other side of the alcohol tank (4). The first high-pressure pump (5) is connected to the first hollow bracket (3) by a pipeline. The first nozzle (6) is arranged and connected inside the first hollow bracket (3). A primer spraying mechanism is provided at the rear of one side of the spray box (1). A topcoat spraying mechanism is provided at the rear of the other side of the spray box (1). The drying mechanism is provided on the other side of the spray box (1).

2. A plastic product external spraying device according to claim 1, characterized in that: The primer spraying mechanism comprises a second hollow bracket (7), a primer tank (8), a second high-pressure pump (9) and a second spray head (10); the second hollow bracket (7) is fixedly provided at the rear of one side of the fixing seat (2); the primer tank (8) is fixedly provided at the rear of one side of the spray box (1); the second high-pressure pump (9) is fixedly provided at the other side of the primer tank (8); the second high-pressure pump (9) is connected to the second hollow bracket (7) by a pipeline; and the second spray head (10) is arranged and connected inside the second hollow bracket (7).

3. A plastic product external spraying device according to claim 1, characterized in that: The topcoat spraying mechanism comprises a third hollow bracket (11), a topcoat tank (12), a third high-pressure pump (13) and a third nozzle (14); the third hollow bracket (11) is fixedly provided at the rear of the other side of the fixing seat (2); the topcoat tank (12) is fixedly provided at the rear of the other side of the spray box (1); a third high-pressure pump (13) is fixedly provided at one side of the topcoat tank (12); a pipeline is connected between the third high-pressure pump (13) and the third hollow bracket (11); and a third nozzle (14) is arranged and connected inside the third hollow bracket (11).

4. A plastic product external spraying device according to claim 1, characterized in that: The drying mechanism comprises a fourth hollow bracket (15), a drying fan (16) and an air outlet (17); the fourth hollow bracket (15) is fixedly provided on the other side of the fixing seat (2); the drying fan (16) is fixedly provided on the other side of the spray box (1); the drying fan (16) is connected to the fourth hollow bracket (15) through a pipeline; and the air outlet (17) is arranged and connected inside the fourth hollow bracket (15).

5. A plastic product external spraying device according to claim 1, characterized in that: A fixed plate (18) is fixedly provided at the lower part of the spray box (1), the fixed plate (18) having openings at both sides, a motor (19) is fixedly provided at the middle of the bottom of the fixed plate (18), and a turntable (20) is rotatably provided at the middle of the upper part of the fixed plate (18).

6. A plastic product external spraying device according to claim 5, characterized in that: A positioning seat (21) is fixedly provided on the rotating disk (20), a spring (22) is fixedly provided around the edge of the positioning seat (21), and a positioning block (23) is fixedly provided on the outer side of the spring (22).

7. A plastic product external spraying device according to claim 1, characterized in that: A discharge pipe (24) is provided on the other side of the bottom of the spray box (1), and exhaust ports (25) are provided above both sides of the spray box (1).

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