Filtering device for coating production

Abstract

The utility model relates to a filtering device for coating production, which comprises a box body, an inclined filter screen is arranged at the lower part in the box body, a discharge port is arranged on the bottom surface of the box body, a feed port positioned above the filter screen is arranged on the right side wall of the box body, and a spray head seat capable of moving left and right is arranged in the box body. The spray head seat extends in the front-back direction, a plurality of spray heads are arranged on the spray head seat, a water pump communicated with the spray head seat is arranged on the box body, an impurity discharging opening is formed in the right side wall of the box body, a first electromagnetic valve is arranged in the impurity discharging opening, and a cavity close to the inner bottom face of the box body is formed in the bottom of the box body. According to the filtering device, when the filtering device is used for cleaning the filtering net, the filtering net does not need to be detached from the interior of the filtering device, and the filtering device is very convenient to use as the filtering net seat moves left and right, meanwhile, water is sprayed out of the spraying head to clean the filtering net, and water on the filtering net and water in the box body are dried by the heater after cleaning is completed.

Description

Technical Field

[0001] The utility model relates to the field of paint filtration, and more specifically, to a filtration device for paint production. Background Art

[0002] Paint is a viscous liquid that is coated on the surface of an object to be protected or decorated and can form a continuous film firmly attached to the object to be coated. It is usually mainly composed of resin, or oil, or emulsion, with or without pigments and fillers, and corresponding additives are added, and it is prepared with organic solvents or water. During the production process of paint, due to the relatively complex manufacturing process of paint, sundries are easily introduced during the processing, and at the same time, sundries may also be carried in each raw material for making paint, so the paint needs to be filtered.

[0003] After the existing paint filtration device filters the paint, some impurities will accumulate on the filter screen. When the filter screen needs to be cleaned, the filter screen needs to be removed from the inside of the paint filtration device and reinstalled inside the paint filtration device after cleaning, which is very inconvenient. Summary of the Utility Model

[0004] In view of the above-mentioned defects of the prior art, a filtration device for paint production is provided.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a filtration device for paint production, including a box body with a cuboid structure. An inclined filter screen with the left side higher than the right side is arranged at the lower part inside the box body. A discharge port is arranged on the bottom surface of the box body. A feed port is arranged on the right side wall of the box body above the filter screen. A spray head seat that moves left and right is arranged inside the box body. The spray head seat extends in the front-back direction. A plurality of spray heads are arranged on the spray head seat. A water pump connected to the spray head seat is arranged on the box body. An impurity discharge port is arranged on the right side wall of the box body. The inner bottom surface of the impurity discharge port is coplanar with the top surface of the filter screen. A first electromagnetic valve is arranged inside the impurity discharge port. A cavity adjacent to the inner bottom surface of the box body is arranged at the bottom of the box body, and a heater is arranged inside the cavity.

[0006] Preferably, a lead screw and a guide post are arranged inside the box body above the feed port. The lead screw is rotatably arranged inside the box body. Both the lead screw and the guide post extend in the left-right direction. One end of the spray head seat is threadedly connected to the lead screw, and the other end of the spray head seat is sleeved on the guide post. A motor for driving the lead screw is arranged on the box body.

[0007] Preferably, the spray head seat and the water pump are connected and communicated through a corrugated hose.

[0008] Preferably, a plurality of the spray heads are arranged at equal intervals in the front-back direction on the bottom surface of the spray head seat.

[0009] Preferably, an air inlet not lower than the feed inlet is provided on the side wall of the box body, a fan is provided on the outer side wall of the box body, the input end of the fan is communicated with the cavity, the output end of the fan is communicated with the air inlet, and a gas exchange port communicating with the cavity is provided on the box body.

[0010] Preferably, a funnel is provided in the box body below the filter screen, a discharge pipe is provided at the bottom end of the funnel, the discharge pipe passes through the discharge port of the box body, and a cavity is formed by the outer side wall of the funnel, the outer side wall of the discharge pipe and the inner side wall of the box body. A second solenoid valve is provided in the discharge pipe.

[0011] Preferably, a liquid level sensor is provided on the box body.

[0012] Preferably, the impurity discharge port extends in the front-rear direction, and the length of the impurity discharge port is equal to the length of the filter screen in the front-rear direction.

[0013] Preferably, support feet are provided on the bottom surface of the box body.

[0014] The beneficial effects of the present utility model are as follows: When it is necessary to clean the filter screen of the present filtering device, the nozzle seat moves left and right, and at the same time the water pump works, water is sprayed from multiple nozzles and the filter screen is cleaned. The water is discharged from the discharge port and the impurity discharge port, and the impurities will be discharged from the impurity discharge port together with the water. After the cleaning is completed, the heater starts to work, and the heat generated by the heater dries the water on the filter screen and in the box body for the next filtration. Moreover, when cleaning the filter screen of the present filtering device, it is not necessary to remove the filter screen from the inside of the filtering device, which is very convenient. Description of the Drawings

[0015] Figure 1 is a schematic vertical sectional structure diagram of an embodiment of the present utility model;

[0016] Figure 2 is a schematic top horizontal sectional structure diagram of an embodiment of the present utility model.

[0017] Reference numerals: 1 box body, 10 feed inlet, 11 impurity discharge port, 12 first solenoid valve, 13 cavity, 14 air inlet, 15 gas exchange port, 2 filter screen, 3 nozzle seat, 30 nozzle, 31 water pump, 32 lead screw, 33 guide post, 34 motor, 4 heater, 5 corrugated hose, 6 fan, 7 funnel, 70 discharge pipe, 71 second solenoid valve, 8 liquid level sensor, 9 support foot. Detailed Embodiments

[0018] In order to make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model. Obviously, the described embodiments are partial embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present utility model. In addition, the directional terms mentioned in the present utility model, such as "upper", "lower", "front", "back", "left", "right", "inner", "outer", etc., are only references to the directions in the attached drawings. The directional terms used are for better and clearer illustration and understanding of the present utility model, rather than indicating or implying the azimuth that the present utility model must have. Therefore, it cannot be construed as a limitation to the present utility model.

[0019] As shown in the embodiments of the present utility model Figures 1 to 2 a filtering device for paint production includes a box body 1 with a cuboid structure. A slanted filter screen 2 with the left side higher than the right side is arranged at the lower part inside the box body 1. A discharge port is arranged at the middle position of the bottom surface of the box body 1. An inlet port 10 is arranged on the right side wall of the box body 1 above the filter screen 2. A spray head seat 3 that moves left and right is arranged inside the box body 1. Preferably, the spray head seat 3 is located above the inlet port 10. The spray head seat 3 has a hollow cuboid structure and extends in the front-rear direction. A plurality of spray heads 30 are arranged on the spray head seat 3. The plurality of spray heads 30 are arranged at equal intervals in the front-rear direction on the bottom surface of the spray head seat 3. A water pump 31 connected to the spray head seat 3 is arranged on the box body 1. An impurity discharge port 11 is arranged on the right side wall of the box body 1. The inner bottom surface of the impurity discharge port 11 is coplanar with the top surface of the filter screen 2. The impurity discharge port 11 extends in the front-rear direction, and the length of the impurity discharge port 11 is equal to the front-rear direction length of the filter screen 2, which makes it easier for impurities to be discharged from the box body 1. A first electromagnetic valve 12 is arranged inside the impurity discharge port 11 to prevent paint from leaking out of the impurity discharge port 11 during filtration. A cavity 13 adjacent to the inner bottom surface of the box body 1 is arranged at the bottom of the box body 1. A heater 4 is arranged inside the cavity 13. Preferably, two heaters 4 are arranged, and the two heaters 4 are correspondingly located on the left and right sides of the inner bottom surface of the cavity 13. Preferably, the heater 4 is a resistive heater.

[0020] When it is necessary to clean the filter screen 2 of this filtering device, the spray head seat 3 moves left and right, and at the same time, the water pump 31 works. Water sprays out from multiple spray heads 30 to clean the filter screen 2. At this time, the first electromagnetic valve 12 is opened, and water is discharged from the discharge port and the impurity discharge port 11. The impurities will be discharged from the impurity discharge port 11 together with the water. After the cleaning is completed, the heater 4 starts to work. The heat generated by the heater 4 dries the moisture on the filter screen 2 and inside the box body 1 for the next filtration. Moreover, when this filtering device cleans the filter screen 2, it is not necessary to remove the filter screen 2 from the inside of the filtering device, which is very convenient.

[0021] Further improvements, such as Figure 1 and Figure 2 As shown in, a lead screw 32 and a guide post 33 are arranged in the box body 1 above the feed inlet 10. The lead screw 32 is rotatably arranged in the box body 1. Both the lead screw 32 and the guide post 33 extend in the left-right direction. The lead screw 32 and the guide post 33 are on the same horizontal plane. The lead screw 32 is located at the front side inside the box body 1, and the guide post 33 is located at the rear side inside the box body 1. The front end of the spray head seat 3 is threadedly connected to the lead screw 32, and the rear end of the spray head seat 3 is sleeved on the guide post 33. A motor 34 for driving the lead screw 32 is arranged on the right outer wall of the box body 1. The right end of the lead screw 32 passes through the right side wall of the box body 1 and is connected to the output end of the motor 34. The motor 34 drives the lead screw 32 to rotate forward or backward, so that the spray head seat 3 moves left and right, enabling the spray heads 30 on the spray head seat 3 to clean all positions on the filter screen 2.

[0022] Further improvements, such as Figure 1 As shown in, the spray head seat 3 and the water pump 31 are connected and communicated through a corrugated hose 5. The corrugated hose 5 can resist deformation caused by the displacement of the spray head seat 3 and is not easily damaged.

[0023] Further improvements, such as Figure 1 As shown in, an air inlet 14 not lower than the feed inlet 10 is arranged on the left side wall of the box body 1. The air inlet 14 is also located below the spray head seat 3. A fan 6 is arranged on the left outer wall of the box body 1. The fan 6 is located near the bottom end of the box body 1. The input end of the fan 6 is connected and communicated with the cavity 13; the output end of the fan 6 is connected and communicated with the air inlet 14. An air exchange port 15 communicating with the cavity 13 is arranged on the box body 1. The air exchange port 15 is located on the bottom surface of the box body 1. By blowing the hot air in the cavity 13 into the box body 1 through the fan 6, the drying speed of the inside of the box body 1 and the filter screen 2 is accelerated.

[0024] Further improvements, such as Figure 1 and Figure 2As shown in the figure, a funnel 7 is arranged in the box body 1 below the filter net 2. The bottom end of the funnel 7 is provided with a discharge pipe 70. The discharge pipe 70 penetrates through the discharge port of the box body 1. A cavity 13 is formed by the outer side wall of the funnel 7, the outer side wall of the discharge pipe 70 and the inner side wall of the box body 1. A second electromagnetic valve 71 is arranged in the discharge pipe 70. The funnel 7 facilitates the filtered paint to flow out from the discharge pipe 70.

[0025] Further improvement, as Figure 1 and Figure 2 As shown in the figure, a liquid level sensor 8 is arranged on the right side wall of the box body 1. The liquid level sensor 8 is located below the feed inlet 10 and close to the feed inlet 10. The liquid level sensor 8 is a non-contact liquid level sensor. The liquid level sensor 8 senses the liquid level of the paint. When the liquid level reaches the set position, adding paint into the box body 1 is stopped to prevent the paint from affecting the spray head 3 or entering the air inlet 14.

[0026] Further improvement, as Figure 1 As shown in the figure, support feet 9 are arranged on the bottom surface of the box body 1. There are four support feet 9, and the four support feet 9 are correspondingly located at the four corners of the bottom surface of the box body 1 to support the box body 1, which facilitates taking the paint from the discharge pipe 70 passing through the bottom surface of the box body 1.

[0027] It should be understood that for those of ordinary skill in the art, improvements or transformations can be made according to the above description, and all such improvements and transformations should fall within the protection scope of the appended claims of the present utility model.

Claims

1. A filtering device for paint production, comprising a box body with a cuboid structure; characterized in that, A tilted filter screen with the left side higher than the right side is provided at the lower part inside the box body; a discharge port is provided on the bottom surface of the box body; a feed port is provided on the right side wall of the box body above the filter screen; a spray head seat that moves left and right is provided inside the box body; the spray head seat extends in the front-rear direction; a plurality of spray heads are provided on the spray head seat; a water pump connected to the spray head seat is provided on the box body; an impurity discharge port is provided on the right side wall of the box body; the inner bottom surface of the impurity discharge port is coplanar with the top surface of the filter screen; a first solenoid valve is provided inside the impurity discharge port; a cavity adjacent to the inner bottom surface of the box body is provided at the bottom of the box body; a heater is provided inside the cavity.

2. The filtering device for paint production according to claim 1, characterized in that, A lead screw and a guide post are provided inside the box body above the feed port; the lead screw is rotatably provided inside the box body; both the lead screw and the guide post extend in the left-right direction; one end of the spray head seat is threadedly connected to the lead screw; the other end of the spray head seat is sleeved on the guide post; a motor for driving the lead screw is provided on the box body.

3. The filtering device for paint production according to claim 1, characterized in that, The spray head seat and the water pump are connected and communicated through a corrugated hose.

4. A filtering device for coating production according to claim 1, characterized in that, A plurality of the spray heads are arranged at equal intervals in the front-rear direction on the bottom surface of the spray head seat.

5. The filtering device for paint production according to claim 1, characterized in that, An air inlet not lower than the feed port is provided on the side wall of the box body; a blower is provided on the outer side wall of the box body; the input end of the blower is connected and communicated with the cavity; the output end of the blower is connected and communicated with the air inlet; a gas exchange port communicating with the cavity is provided on the box body.

6. A filtering device for coating production according to claim 1, characterized in that, A funnel is provided inside the box body below the filter screen; a discharge pipe is provided at the bottom end of the funnel; the discharge pipe penetrates through the discharge port of the box body; a cavity is formed by the outer side wall of the funnel, the outer side wall of the discharge pipe and the inner side wall of the box body; a second solenoid valve is provided inside the discharge pipe.

7. A filtering device for paint production according to claim 1, characterized in that, A liquid level sensor is provided on the box body.

8. A filtering device for paint production according to claim 1, characterized in that, The impurity discharge port extends in the front-rear direction; the length of the impurity discharge port is equal to the length of the filter screen in the front-rear direction.

9. The filtering device for paint production according to claim 1, characterized in that, Support feet are provided on the bottom surface of the box body.

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