Vacuum paint dipping equipment

Abstract

The vacuum paint dipping equipment comprises a tank body and a tank cover, and a paint inlet is formed in the tank cover; a backwashing pipe is arranged on a vacuum pipeline between the buffer tank and the tank body; an air storage tank and an air compressor; a hot dryer and a cold dryer; a hydraulic station; a control cabinet; the paint dipping equipment carries out vacuum paint dipping on the workpiece in a vacuum paint dipping mode, compared with traditional normal-pressure paint dipping, the paint dipping effect of vacuum paint dipping is better, the paint dipping degree of the workpiece is deeper, even if the surface roughness of the workpiece is large, paint liquid can be attached to the surface of the workpiece through vacuum paint dipping, and the paint dipping efficiency is improved. The situation that workpieces are reworked due to poor paint dipping is reduced to the maximum extent, and the productivity is improved to a certain extent.

Description

Technical Field

[0001] The utility model relates to the technical field of paint dipping equipment, in particular to vacuum paint dipping equipment. Background Art

[0002] The current dipping paint equipment usually performs dipping paint under normal pressure. However, the dipping paint effect under normal pressure is not ideal, especially for workpieces with high surface roughness. Normal pressure dipping paint is prone to poor dipping paint wetting and incomplete paint dipping of the workpiece surface. Therefore, after normal pressure dipping paint, it is necessary to perform one or more additional dipping paints, or perform local spray painting on the workpiece after dipping paint, which will not only prolong the process time, but also reduce the yield. Therefore, in view of the defect of low efficiency of normal pressure dipping paint, we have improved the dipping paint equipment in the factory to meet the demand for a better dipping paint effect. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a vacuum varnishing device which can improve the varnishing effect and reduce the occurrence of rework of varnishing workpieces in view of poor varnishing and incomplete varnishing under normal pressure.

[0004] The technical problem to be solved by the utility model is achieved through the following technical solution: a vacuum varnishing device, the device comprising:

[0005] A tank body and a tank cover, wherein the tank cover is provided with a paint inlet;

[0006] Vacuum unit and buffer tank, the air inlet end of the vacuum unit is connected to the air outlet end of the buffer tank through a vacuum pipeline, the air inlet end of the buffer tank is connected to the tank body through a pipeline, so as to evacuate the tank body, a backwash pipe is arranged on the vacuum pipe between the buffer tank and the tank body, a flange joint is installed on the inlet end of the backwash pipe, and a hand valve I is installed on the backwash pipe;

[0007] The air storage tank and the air compressor, the compressed air outlet of the air compressor and the air inlet end of the air storage tank are connected through a pipeline to supply air to the air compressor. A hand valve II is installed on the pipeline between the compressed air outlet of the air compressor and the air inlet end of the air storage tank;

[0008] A hot dryer and a cold dryer, the hot dryer includes an air inlet at the top of the hot dryer and an air outlet at the top of the hot dryer, the air inlet at the top of the hot dryer is connected to the air outlet of the gas storage tank through a pipeline, the cold dryer includes an air inlet at the bottom of the cold dryer and an air outlet at the top of the cold dryer, the air inlet at the bottom of the cold dryer is connected to the air outlet at the top of the hot dryer through a pipeline, the air outlet at the top of the cold dryer is connected to the tank body through a pipeline, at least two cold dryers are provided, and the air inlets and air outlets of the two cold dryers are connected in parallel between the tank body and the hot dryer through pipelines;

[0009] a hydraulic station configured to provide power to the hydraulic components;

[0010] A control cabinet is configured to provide control to the power element.

[0011] Preferably, a pressure gauge is installed on the tank cover.

[0012] Preferably, the top outer wall of the tank body is provided with two connection ports, and the two connection ports are connected in parallel to the air outlet at the top of the cold dryer through pipelines.

[0013] Preferably, a flow meter is installed on the pipeline between the compressed air outlet of the air compressor and the air inlet end of the air storage tank.

[0014] Preferably, two cold dryers are arranged spaced apart from each other.

[0015] Compared with the prior art, the beneficial technical effect of the utility model is that the paint dipping equipment adopts vacuum paint dipping to perform vacuum paint dipping on the workpiece. Compared with the traditional normal pressure paint dipping, the vacuum paint dipping has a better paint dipping effect and a deeper paint dipping degree for the workpiece. Even if the surface roughness of the workpiece is large, the vacuum paint dipping can make the paint liquid adhere to the surface of the workpiece, thereby minimizing the occurrence of rework of the workpiece due to poor paint dipping and improving the production capacity to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the top structure of the utility model.

[0018] In the figure: 1. tank body; 2. tank cover; 3. paint inlet; 4. vacuum unit; 5. buffer tank; 6. backwash pipe; 7. flange joint; 8. manual valve I; 9. gas storage tank; 10. air compressor; 11. manual valve II; 12. flow meter; 13. hot dryer; 14. cold dryer; 15. connection port; 16. hydraulic station; 17. control cabinet. DETAILED DESCRIPTION

[0019] The specific technical solutions of the present invention are further described below with reference to the accompanying drawings, so as to facilitate further understanding of the present invention by those skilled in the art, and do not constitute any limitation to the rights thereof.

[0020] Example 1, reference Figure 1-2 , a vacuum dipping equipment, the equipment comprising;

[0021] The tank body 1 and the tank cover 2 are installed to form a roughly spherical kettle structure, the interior of which is used to dip the workpiece. The tank cover 2 is provided with a paint inlet 3, through which the paint is filled into the tank body 1 and the tank cover 2. A pressure gauge is installed on the tank cover 2, through which the pressure in the tank body 1 can be understood;

[0022] A vacuum unit 4 and a buffer tank 5, the air inlet end of the vacuum unit 4 is connected to the air outlet end of the buffer tank 5 through a vacuum pipeline, the buffer tank 5 can be a Q235R type buffer tank 5, the air inlet end of the buffer tank 5 is connected to the tank body 1 through a pipeline, so as to evacuate the tank body 1, a backwashing pipe 6 is arranged on the vacuum pipeline between the buffer tank 5 and the tank body 1, a flange joint 7 is installed on the inlet end of the backwashing pipe 6, and a hand valve I 8 is installed on the backwashing pipe 6;

[0023] It should be noted that since the connection between the buffer tank 5 and the tank body 1 is prone to blockage, a backwash pipe 6 is provided on the vacuum pipe between the buffer tank 5 and the tank body 1. The backwash pipe 6 can backwash the connection between the two to avoid pipe blockage, thereby reducing the occurrence of problems such as airflow rate.

[0024] The air storage tank 9 and the air compressor 10, the design pressure of the air storage tank 9 is 1.6MPa-10.0MPa, the compressed air outlet of the air compressor 10 is connected to the air inlet end of the air storage tank 9 through a pipeline, so as to supply air to the air compressor 10, a hand valve II 11 is installed on the pipeline between the compressed air outlet of the air compressor 10 and the air inlet end of the air storage tank 9, and a flow meter 12 is installed on the pipeline between the compressed air outlet of the air compressor 10 and the air inlet end of the air storage tank 9, and the flow in the pipeline can be measured by the flow meter 12;

[0025] A hot dryer 13 and a cold dryer 14, wherein the hot dryer 13 includes an air inlet at the top of the hot dryer 13 and an air outlet at the top of the hot dryer 13, wherein the air inlet at the top of the hot dryer 13 is connected to the air outlet of the gas storage tank 9 through a pipeline, and the cold dryer 14 includes an air inlet at the bottom of the cold dryer 14 and an air outlet at the top of the cold dryer 14, wherein the air inlet at the bottom of the cold dryer 14 is connected to the air outlet at the top of the hot dryer 13 through a pipeline, and the air outlet at the top of the cold dryer 14 is connected to the tank body 1 through a pipeline, wherein two cold dryers 14 are arranged at intervals in front and behind, and the air inlets and air outlets of the two cold dryers 14 are connected in parallel between the tank body 1 and the hot dryer 13 through pipelines;

[0026] In order to avoid unnecessary blockage of the pipeline due to poor connection of the connection port 15, two connection ports 15 are provided on the top outer wall of the tank body 1. The two connection ports 15 are connected in parallel to the air outlet at the top of the cold dryer 14 through pipelines. When one of the connection ports 15 is blocked, the other connection port 15 can be enabled, which has strong operability, and a valve body can be installed on the pipeline connected to the connection port 15;

[0027] A hydraulic station 16, which is configured to provide power to the hydraulic components. The hydraulic station 16 may be a YBZ-1.6 single pump hydraulic station 16;

[0028] The control cabinet 17 is configured to provide control for the power element. The control cabinet 17 can be customized according to the use requirements, so its specific model will not be described here.

[0029] When the vacuum dipping equipment is used;

[0030] (1) The first is the preparation stage: open the control cabinet 17, ensure that the hydraulic station 16, air compressor 10, vacuum unit 4, hot dryer 13 and cold dryer 14 are in standby mode, check whether the connection of the tank body 1, tank cover 2, vacuum pipeline, backwash pipe 6, gas storage tank 9 and other components is tight, ensure there is no leakage, prepare the workpiece to be dipped in paint, and ensure that the workpiece is clean and dry;

[0031] (2) Filling paint: open the tank cover 2, put the workpiece into the tank body 1, and fill the tank body 1 with paint through the paint inlet 3 on the tank cover 2 until the paint liquid level covers the workpiece;

[0032] (3) Vacuuming: Close the tank cover 2 and start the vacuum unit 4. The vacuum unit 4 performs a vacuuming operation on the inside of the tank body 1 through the vacuum pipe and the buffer tank 5 to reduce the pressure inside the tank body 1. During the vacuuming process, the pressure gauge can be observed to monitor the pressure change inside the tank body 1.

[0033] (4) Backwashing: If the connection between the buffer tank 5 and the tank body 1 is found to be blocked, the manual valve Ⅰ8 on the backwashing pipe 6 can be opened to backwash the connection using the backwashing pipe 6 to remove the blockage;

[0034] (5) Compressed air supply: Start the air compressor 10. The compressed air generated by the air compressor 10 enters the air storage tank 9 through the pipeline. The flow rate in the pipeline can be counted through the flow meter 12 between the compressed air outlet of the air compressor 10 and the air inlet end of the air storage tank 9;

[0035] (6) Drying treatment: The compressed air in the air storage tank 9 first enters the heat dryer 13, where it is heated and dried. The dried compressed air enters the cold dryer 14, where it is cooled and dehumidified. The cooled and dehumidified compressed air enters the tank body 1 through the pipeline, helping to evenly distribute the paint remaining on the surface of the workpiece and accelerate the curing of the paint.

[0036] It should be noted that when a connection port 15 in the pipeline connected to the tank body 1 is found to be blocked, the valve body on the connection port 15 can be closed, and the valve body on another connection port 15 can be opened to enable the other connection port 15 to ensure smooth air circulation;

[0037] After a certain period of varnishing and drying, the paint on the surface of the workpiece is evenly distributed and solidified, completing the vacuum varnishing process, closing all equipment, opening the tank cover 2, and taking out the workpiece.

Claims

1. A vacuum varnishing equipment, characterized in that: The equipment includes; A tank body and a tank cover, wherein the tank cover is provided with a paint inlet; Vacuum unit and buffer tank, the air inlet end of the vacuum unit is connected to the air outlet end of the buffer tank through a vacuum pipeline, the air inlet end of the buffer tank is connected to the tank body through a pipeline, so as to evacuate the tank body, a backwash pipe is arranged on the vacuum pipe between the buffer tank and the tank body, a flange joint is installed on the inlet end of the backwash pipe, and a hand valve I is installed on the backwash pipe; The air storage tank and the air compressor, the compressed air outlet of the air compressor and the air inlet end of the air storage tank are connected through a pipeline to supply air to the air compressor. A hand valve II is installed on the pipeline between the compressed air outlet of the air compressor and the air inlet end of the air storage tank; A hot dryer and a cold dryer, the hot dryer includes an air inlet at the top of the hot dryer and an air outlet at the top of the hot dryer, the air inlet at the top of the hot dryer is connected to the air outlet of the gas storage tank through a pipeline, the cold dryer includes an air inlet at the bottom of the cold dryer and an air outlet at the top of the cold dryer, the air inlet at the bottom of the cold dryer is connected to the air outlet at the top of the hot dryer through a pipeline, the air outlet at the top of the cold dryer is connected to the tank body through a pipeline, at least two cold dryers are provided, and the air inlets and air outlets of the two cold dryers are connected in parallel between the tank body and the hot dryer through pipelines; a hydraulic station configured to provide power to the hydraulic components; A control cabinet is configured to provide control to the power element.

2. A vacuum dipping equipment according to claim 1, characterized in that: A pressure gauge is installed on the tank cover.

3. The vacuum dipping equipment according to claim 1, characterized in that: The top outer wall of the tank body is provided with two connection ports, and the two connection ports are connected in parallel to the air outlet end at the top of the cold dryer through pipelines.

4. The vacuum varnishing equipment according to claim 1, characterized in that: A flow meter is installed on the pipeline between the compressed air outlet of the air compressor and the air inlet end of the air storage tank.

5. The vacuum varnishing equipment according to claim 1, characterized in that: Two cold dryers are arranged at intervals in front and behind.

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