Paint supply circulation device

Abstract

The utility model relates to the field of spraying technology field of automobile field discloses a kind of paint supply circulation device, including paint mixing tank, the side of paint mixing tank is fixed with the connecting pipe of h shape, flowmeter, pressure regulating valve and siphon are fixedly arranged on connecting pipe, the one end of connecting pipe close to paint mixing tank is movably provided with plunger, mixed component is rotationally arranged between paint mixing tank and sealing cover plate, mixed component includes filter scraper, material lifting screw, eccentric disc and scrape bottom paddle, filter scraper, eccentric disc and scrape bottom paddle are all fixedly arranged on the central shaft of material lifting screw, material lifting screw is rotationally arranged in the bottom of sealing cover plate, paint deposited in the bottom of paint mixing tank is guided using scrape bottom paddle, paint is mixed eccentric by eccentric disc, material lifting screw drives the exchange mixing of upper and lower layer paint in paint mixing tank, the paint adhered to the inner wall of paint mixing tank is scraped off by two sides filter scraper, and the paint contacted is filtered, so that paint mixing in paint mixing tank is more uniform.

Description

Technical Field

[0001] This utility model belongs to the field of automotive spraying technology, specifically, it relates to a paint supply and circulation device. Background Technology

[0002] A paint supply circulation device is a centralized paint supply system that delivers paint to the painting station at a stable pressure and flow rate through a pipeline network, while maintaining the paint's process characteristics (such as viscosity and color) and preventing sedimentation.

[0003] Existing technology discloses a paint supply device for an automotive painting line (CN220658051U), including a base installed on the ground, a paint tank fixedly connected to the base, a connecting pipe fixedly connected inside the paint tank, the connecting pipe fixedly connected to a support plate on the ground, a pressure regulating valve installed on the connecting pipe, a diaphragm pump installed on the connecting pipe, a flow meter installed on the connecting pipe, a nozzle installed on the connecting pipe, and a motor fixedly installed on the paint tank, with the motor's output shaft rotatably connected to the paint tank. This invention, by pushing a mounting plate into the base, uses a locking mechanism such as a locking hole and a locking ball to lock and limit the mounting plate, ensuring the mounting plate and heating element are stably positioned. Under the action of the heating element and heat-conducting components, the paint can be heated to ensure effective paint flowability in cold weather.

[0004] Research revealed that existing technologies lack filtration and scraping mechanisms, making it easy for paint to settle and clog spray guns when left to stand. Additionally, the use of vertical stirring blades for mixing prevents effective mixing of the paint from the upper and lower parts, resulting in insufficient uniformity. Furthermore, the lack of reflux circulation measures in existing technologies leads to paint retention in the connecting pipes, which can cause hardening and blockage over time.

[0005] In view of this, this utility model is hereby proposed. Utility Model Content

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] A paint supply circulation device, comprising

[0008] A paint mixing tank, wherein an H-shaped connecting pipe is fixedly installed on one side of the paint mixing tank, and a flow meter, a pressure regulating valve and a siphon pipe are fixedly installed on the connecting pipe, and a plunger is movably installed at the end of the connecting pipe near the paint mixing tank;

[0009] A mixing assembly is rotatably disposed inside a paint mixing tank. The mixing assembly includes a filter scraper, a lifting screw, an eccentric disc, and a bottom scraper blade. The filter scraper, eccentric disc, and bottom scraper blade are all fixedly disposed on the central axis of the lifting screw. The lifting screw is rotatably disposed at the bottom of a sealing cover plate. The eccentric disc is slidably fitted above a plunger.

[0010] In a preferred embodiment of this utility model, a base is fixedly provided on the bottom surface of the paint mixing tank, a sealing cover is fixedly provided on the top surface of the paint mixing tank, and the base is fixedly supported by a U-shaped seat for connecting pipe.

[0011] In a preferred embodiment of this utility model, a motor is fixedly installed on the top surface of the sealing cover plate, the output end of the motor is connected to the top of the lifting screw, the filter scraper is a C-shaped square frame structure, and two filter scrapers are symmetrically arranged with the lifting screw as the center.

[0012] In a preferred embodiment of this utility model, the bottom scraping blade is composed of multiple spiral trapezoidal plates, and the bottom scraping blade is fixedly installed at the bottom of the central shaft of the lifting screw.

[0013] In a preferred embodiment of this utility model, a constant temperature heating chamber is provided on the inner wall of the paint mixing tank, and a heating tube is fixedly installed in the constant temperature heating chamber and the heating tube is connected to an external control power supply.

[0014] In a preferred embodiment of this utility model, two one-way valves are installed in the pipe on the side of the connecting pipe where the siphon pipe is installed, and the two one-way valves are respectively located at the inlet and outlet ends of the pipe.

[0015] In a preferred embodiment of the present invention, the central shaft of the lifting screw is fixedly connected to the eccentric disk at a position off-center. The bottom of the eccentric disk is provided with an annular groove, and a sliding shaft is fixedly provided at the top of the end of the plunger away from the connecting pipe. The sliding shaft slides within the annular groove.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] 1. By setting up a mixing component, the bottom scraper blades guide and stir the paint settled at the bottom of the paint mixing tank to the top. The eccentrically set eccentric disks agitate the paint for eccentric mixing. The lifting screw drives the exchange and mixing of the upper and lower layers of paint in the paint mixing tank. The filter scrapers set on both sides scrape off the paint adhering to the inner wall of the paint mixing tank and filter and stir the paint that comes into contact with it, thereby making the paint in the paint mixing tank more uniform.

[0018] 2. By setting up a plunger, eccentric disc, and siphon tube, during the synchronous use of the mixing components, the sliding cooperation between the eccentric disc and the plunger drives the plunger to reciprocate within the connecting pipe, thereby continuously pressurizing and pushing the paint within the connecting pipe. When the mixing components stop mixing, the synchronous paint supply ends. At this time, the side of the connecting pipe equipped with the siphon tube uses the siphon principle to return the remaining paint inside to the paint mixing tank through the siphon tube to complete the return flow, avoiding solidification blockage caused by stagnation in the connecting pipe, thus achieving a circulating effect for the paint supply.

[0019] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0020] In the attached diagram:

[0021] Figure 1 This is a schematic diagram of the overall appearance of the present utility model;

[0022] Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model;

[0023] Figure 3 This is a cross-sectional view of the connecting pipe portion of this utility model;

[0024] Figure 4 This is a schematic diagram of the hybrid component of this utility model;

[0025] Figure 5 This utility model Figure 2 A schematic diagram of the explosion at point A in the middle.

[0026] In the diagram: 10. Paint mixing tank; 11. Sealing cover; 12. Motor; 13. Base; 14. Flow meter; 15. Pressure regulating valve; 16. Connecting pipe; 17. Siphon pipe; 18. Constant temperature heating chamber; 19. Filter scraper; 20. Check valve; 21. Plunger; 22. Annular groove; 23. Lifting screw; 24. Eccentric disc; 25. Bottom scraper blade; 26. Sliding shaft; 27. Heating tube. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0028] A paint supply circulation device, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, including

[0029] A paint mixing tank 10 is provided with an H-shaped connecting pipe 16 fixedly installed on one side of the paint mixing tank 10. A flow meter 14, a pressure regulating valve 15 and a siphon pipe 17 are fixedly installed on the connecting pipe 16. A plunger 21 is movably installed at the end of the connecting pipe 16 near the paint mixing tank 10.

[0030] The mixing assembly is rotatably disposed inside the paint mixing tank 10. The mixing assembly includes a filter scraper 19, a lifting screw 23, an eccentric disc 24, and a bottom scraper blade 25. The filter scraper 19, the eccentric disc 24, and the bottom scraper blade 25 are all fixedly disposed on the central axis of the lifting screw 23. The lifting screw 23 is rotatably disposed at the bottom of the sealing cover plate 11, and the eccentric disc 24 is slidably fitted above the plunger 21.

[0031] like Figure 1 As shown, a base 13 is fixedly installed on the bottom surface of the paint mixing tank 10, and a sealing cover 11 is fixedly installed on the top surface of the paint mixing tank 10. The base 13 supports the connecting pipe 16 by means of a U-shaped seat. Figure 2 As shown, a constant temperature heating chamber 18 is provided on the inner wall of the paint mixing tank 10. A heating tube 27 is fixedly installed in the constant temperature heating chamber 18 and the heating tube 27 is connected to an external control power supply.

[0032] Specifically, in this device, the heating tube 27 is controlled by the power supply. The heating tube 27 keeps the constant temperature heating chamber 18 within a temperature range suitable for paint flow. When adding paint to the paint mixing tank 10, the sealing cover 11 is opened to add paint into the paint mixing tank 10. The paint is mixed by the mixing component while being stirred and continuously contacted with the constant temperature heating chamber 18. The temperature inside the constant temperature heating chamber 18 is used to soften and maintain the temperature of the paint, avoiding rapid curing in an excessively cold environment.

[0033] like Figure 2 and Figure 4 As shown, a motor 12 is fixedly installed on the top surface of the sealing cover plate 11. The output end of the motor 12 is connected to the top of the lifting screw 23. The filter scraper 19 has a C-shaped frame structure, and two filter scrapers 19 are symmetrically arranged with the lifting screw 23 as the center.

[0034] like Figure 4 As shown, the bottom scraper blade 25 is composed of multiple spiral trapezoidal plates, and the bottom scraper blade 25 is fixedly installed at the bottom of the central shaft of the lifting screw 23.

[0035] Specifically, the lifting screw 23 is a common screw rod structure. The side of the filter scraper 19 away from the lifting screw 23 is set as a curved surface that fits the inner wall of the paint mixing tank 10. At the same time, multiple filter holes are opened inside the filter scraper 19. The bottom surface of the sealing cover 11 is sealed to the top surface of the paint mixing tank 10 through a sealing ring. A through hole is opened in the center of the sealing cover 11. The central shaft of the lifting screw 23 is rotatably connected to the through hole through a sealed bearing. When using the mixing component, the motor 12 drives the rotation of the lifting screw 23. The lifting screw 23 drives the filter scrapers 19 on both sides, the bottom scraping slurry 25, and the eccentric disk 24 to rotate simultaneously. The spiral trapezoidal plate inside the blade 25 scrapes against the bottom surface of the paint mixing tank 10, guiding and stirring the paint settled at the bottom of the paint mixing tank 10 to the top. This part of the paint is eccentrically mixed by the eccentrically set eccentric disk 24. Simultaneously, the lifting screw 23 drives the exchange and mixing of the upper and lower layers of paint in the paint mixing tank 10. The filter scrapers 19 set on both sides scrape off part of the paint adhering to the inner wall of the paint mixing tank and filter and stir the paint that comes into contact with it through the filter holes on their own. The paint becomes more delicate after passing through the filter holes. The paint mixed and stirred by the mixing structure, combined with the constant temperature heating of the heating tube 27, is mixed more evenly and delicately.

[0036] like Figure 3 As shown, two one-way valves 20 are installed in the pipe on one side of the connecting pipe 16 where the siphon pipe 17 is installed. The two one-way valves 20 are located at the inlet and outlet ends of the pipe, respectively.

[0037] like Figure 5 As shown, the central shaft of the lifting screw 23 is fixedly connected to the eccentric disk 24 at a position off the center. The bottom of the eccentric disk 24 is provided with an annular groove 22. The top of the plunger 21 away from the connecting pipe 16 is fixedly provided with a sliding shaft 26, which slides in the annular groove 22.

[0038] Specifically, the connecting pipe 16 is divided into a vertical main pipe and a curved secondary pipe. The siphon pipe 17 and the secondary pipe of the connecting pipe 16 form an M-shaped channel. A one-way valve 20 is installed at each end of the secondary pipe. Both one-way valves 20 open towards the main pipe. The paint mixing tank 10 is connected to the side pipe of the connecting pipe 16 through the siphon pipe 17. During the synchronous use of the mixing components, the eccentric disc 24 pulls the displacement of the sliding shaft 26 through the annular groove 22, thereby driving the plunger 21 to reciprocate within the main pipe of the connecting pipe 16. When the plunger 21 moves backward in the main pipe, a negative pressure is formed at the front end of the main pipe. At this time, the main pipe draws paint from the paint mixing tank 10 through this pipe. The paint passes through the two one-way valves. 20 enters the main pipe, plunger 21 moves forward, the pressure in the main pipe rises sharply, and the one-way valve 20 in the secondary pipe restricts the backflow of paint to prevent high-pressure paint from flowing back into the secondary pipe. At this time, the paint is discharged through the main pipe of connecting pipe 16 via pressure regulating valve 15 and flow meter 14. Here, the end of the main pipe of connecting pipe 16 away from the paint mixing tank 10 is connected to an external spraying device for spraying. When the mixing component stops mixing, the synchronous paint supply ends. At this time, the secondary pipe of connecting pipe 16 uses the siphon principle to return the remaining paint inside to the paint mixing tank 10 through siphon pipe 17 to complete the backflow, avoiding solidification and blockage caused by stagnation in the secondary pipe of connecting pipe 16, thereby achieving a circulation effect of paint supply.

[0039] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A paint supply and circulation device, characterized in that, include A paint mixing tank (10) is provided with an h-shaped connecting pipe (16) fixedly installed on one side of the paint mixing tank (10). A flow meter (14), a pressure regulating valve (15) and a siphon pipe (17) are fixedly installed on the connecting pipe (16). A plunger (21) is movably installed at one end of the connecting pipe (16) near the paint mixing tank (10). The mixing assembly is rotatably disposed inside the paint mixing tank (10). The mixing assembly includes a filter scraper (19), a lifting screw (23), an eccentric disc (24), and a bottom scraper (25). The filter scraper (19), the eccentric disc (24), and the bottom scraper (25) are all fixedly disposed on the central axis of the lifting screw (23). The lifting screw (23) is rotatably disposed at the bottom of the sealing cover plate (11). The eccentric disc (24) is slidably fitted above the plunger (21).

2. The paint supply and circulation device according to claim 1, characterized in that, The bottom surface of the paint mixing tank (10) is fixedly provided with a base (13), and the top surface of the paint mixing tank (10) is fixedly provided with a sealing cover plate (11). The base (13) is fixedly supported by a U-shaped seat for connecting pipe (16).

3. The paint supply and circulation device according to claim 2, characterized in that, A motor (12) is fixedly installed on the top surface of the sealing cover plate (11). The output end of the motor (12) is connected to the top of the lifting screw (23). The filter scraper (19) is a C-shaped square frame structure. There are two filter scrapers (19) symmetrically arranged with the lifting screw (23) as the center.

4. The paint supply and circulation device according to claim 3, characterized in that, The scraper blade (25) is composed of multiple spiral trapezoidal plates and is fixedly installed at the bottom of the central shaft of the lifting screw (23).

5. A paint supply and circulation device according to claim 1, characterized in that, The inner wall of the paint mixing tank (10) is provided with a constant temperature heating chamber (18), and a heating tube (27) is fixedly installed in the constant temperature heating chamber (18). The heating tube (27) is connected to an external control power supply.

6. The paint supply circulation device according to claim 1, characterized in that, Two check valves (20) are installed in the pipe on one side of the connecting pipe (16) where the siphon pipe (17) is installed. The two check valves (20) are located at the inlet and outlet ends of the pipe, respectively.

7. A paint supply and circulation device according to claim 1, characterized in that, The central shaft of the lifting screw (23) is fixedly connected to the eccentric disk (24) at a position off the center. The bottom of the eccentric disk (24) is provided with an annular groove (22). The top of the plunger (21) away from the connecting pipe (16) is fixedly provided with a sliding shaft (26), which slides in the annular groove (22).

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