Filtering device for coating production and processing

Abstract

The utility model relates to the technical field of coating production and processing, in particular to a filter device for coating production and processing, which comprises a filter box, a discharge pipe and a filter screen shell are arranged on the filter box, an impurity filter screen is arranged in the filter screen shell, a guide sliding opening is arranged on the filter box, a liquid conveying pipe is connected in the guide sliding opening in a sliding manner, a liquid dispersing cover is connected onto the liquid conveying pipe, and a liquid dispersing screen is arranged in the liquid dispersing cover. A middle partition plate is arranged on the filter box, an upper support is arranged on the middle partition plate, a reciprocating air cylinder and a stirring box are arranged on the upper support, an air cylinder rod is connected to the reciprocating air cylinder in a sliding mode, a liquid distribution pipe is arranged on the air cylinder rod, a stirring set and an external pipe are arranged on the stirring box, a liquid outlet pipe is arranged on the stirring box, a telescopic pipe is connected to the liquid outlet pipe, and a connecting pipe is connected to the telescopic pipe. A liquid guide plate is arranged on the filter screen shell, and a hydrophobic layer is arranged on the liquid guide plate. The effective filtering area of the impurity filtering net in the filtering box is increased, and waste caused by accumulation of part of color paste coating liquid on the liquid guide plate is avoided.

Description

Technical Field

[0001] This utility model relates to the field of paint production and processing technology, and in particular to a filtration device for paint production and processing. Background Technology

[0002] Coatings are materials used to coat the surface of objects, forming a strong, continuous solid film. They are widely used in buildings, ceilings, furniture, metal equipment, vehicles, ships, and more.

[0003] The general process of coating production is as follows: First, the pigment raw material is put into a grinding mill to refine the pigment particles. Then, the ground pigment raw material is put into a mixing tank to be stirred and mixed with a preset resin solvent to form a pigment coating liquid. Then, the pigment coating liquid is put into a filter box to filter out particulate impurities in the pigment coating liquid to ensure purity. Finally, the pigment coating liquid is discharged, bottled and stored for later shipment and transportation.

[0004] Currently, existing filter boxes used in paint production and processing generally only have fixed infusion pipes for filtration, which reduces the effective filtration area of ​​the filter screen in the filter box and thus greatly reduces the filtration efficiency for particulate impurities in pigment paint liquid. Utility Model Content

[0005] The purpose of this utility model is to address the aforementioned shortcomings in the existing technology by proposing a filtration device for paint production and processing.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Design a filtration device for paint production and processing, including a filter box, a discharge pipe and a filter screen shell on the filter box, a filter screen inside the filter screen shell, a guide port on the filter box, a liquid delivery pipe slidably connected to the guide port, a liquid distribution hood connected to the liquid delivery pipe, a liquid distribution screen inside the liquid distribution hood, a middle partition on the filter box, an upper support on the middle partition, a reciprocating cylinder and a mixing box on the upper support, a cylinder rod slidably connected to the reciprocating cylinder, a liquid distribution pipe on the cylinder rod, and a mixing assembly and an external pipe on the mixing box;

[0008] The mixing tank is equipped with a liquid outlet pipe, a telescopic pipe is connected to the liquid outlet pipe, and a connecting pipe is connected to the telescopic pipe.

[0009] The filter screen shell is provided with a liquid guiding plate, and the liquid guiding plate is provided with a hydrophobic layer.

[0010] Furthermore, the filter shell is a rectangular frame structure with a vertically through hollow cavity, and the filter screen is embedded in the hollow cavity of the filter shell.

[0011] Furthermore, the filter screen is not higher than the filter screen shell, the liquid guide plate is disposed between the filter screen and the filter screen shell, and the upper end surface of the liquid guide plate is an inclined surface with an angle of fifty-seven degrees with the horizontal plane.

[0012] Furthermore, the infusion tube has an overall L-shaped structure, and there are two symmetrical infusion tubes that are connected to the dispensing tubes respectively.

[0013] Furthermore, the telescopic tube is a corrugated pipe structure and is arranged horizontally, and the upper support is a U-shaped structure and is slidably connected to the cylinder rod.

[0014] Furthermore, the connecting pipe is connected to the liquid distribution pipe, the inner wall surface of the guide port is provided with a smoothing layer, the liquid distribution cover has a diffusion structure facing the filter screen, and the liquid distribution screen is embedded in the lower opening of the liquid distribution cover.

[0015] Furthermore, the hydrophobic layer is uniformly coated along the upper surface of the liquid guiding plate, and the hydrophobic layer is a PTFE polytetrafluoroethylene coating with a thickness of fifteen to twenty micrometers.

[0016] The filtration device for paint production and processing proposed in this utility model has the following advantages:

[0017] 1. This utility model sets up a reciprocating cylinder structure between the filter box and the mixing box, and sets up a liquid delivery pipe with a liquid distribution pipe and a telescopic pipe on the reciprocating cylinder. Then, a guide port is opened on the filter box, and a liquid distribution cover structure with a liquid distribution net is set on the liquid delivery pipe. This allows the two liquid delivery pipes to slide back and forth along the guide port at the same time, and evenly and comprehensively disperse the mixed pigment paint liquid on the surface of the filter screen. This effectively increases the effective filtration area of ​​the filter screen in the filter box, and thus greatly improves the filtration efficiency for particulate impurities in the pigment paint liquid.

[0018] 2. This utility model sets an inclined liquid guiding plate structure between the filter screen shell and the filter screen, and sets a hydrophobic layer structure on the liquid guiding plate, so that the pigment paint liquid falling on the liquid guiding plate can be quickly guided and concentrated into the filter screen and filtered out, avoiding the accumulation of some pigment paint liquid on the liquid guiding plate and causing waste. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0020] Figure 2 For the present utility model Figure 1 A three-dimensional schematic diagram of a filter shell with a filter screen structure;

[0021] Figure 3 This is a top view of the overall structure of this utility model;

[0022] Figure 4 For the present utility model Figure 3 Cross-sectional view of HH section;

[0023] Figure 5 For the present utility model Figure 4 Enlarged view of section I in the middle.

[0024] In the diagram: 1. Filter box; 11. Discharge pipe; 2. Filter screen shell; 21. Filter screen; 22. Liquid guide plate; 23. Hydrophobic layer; 3. Guide port; 31. Smoothing layer; 4. Upper support; 41. Reciprocating cylinder; 42. Cylinder rod; 43. Middle partition; 5. Mixing box; 50. External pipe; 51. Mixing group; 52. Discharge pipe; 6. Telescopic pipe; 61. Connecting pipe; 7. Dividing pipe; 71. Infusion pipe; 72. Dispersing hood; 73. Dispersing net. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Reference Figure 1-5 A filtration device for paint production and processing includes a filter box 1, a discharge pipe 11 and a filter screen shell 2 on the filter box 1, a filter screen 21 inside the filter screen shell 2, a guide port 3 on the filter box 1, a liquid delivery pipe 71 slidably connected inside the guide port 3, a liquid distribution cover 72 connected to the liquid delivery pipe 71, a liquid distribution net 73 inside the liquid distribution cover 72, a middle partition plate 43 on the filter box 1, an upper support plate 4 on the middle partition plate 43, a reciprocating cylinder 41 and a mixing box 5 on the upper support plate 4, a cylinder rod 42 slidably connected to the reciprocating cylinder 41, a liquid distribution pipe 7 on the cylinder rod 42, and a mixing group 51 and an external pipe 50 on the mixing box 5.

[0027] The mixing tank 5 is equipped with a liquid outlet pipe 52, and a telescopic pipe 6 is connected to the liquid outlet pipe 52. The telescopic pipe 6 is connected to the connecting pipe 61.

[0028] A liquid guiding plate 22 is provided on the filter screen shell 2, and a hydrophobic layer 23 is provided on the liquid guiding plate 22.

[0029] The filter shell 2 is a rectangular frame structure with a vertically through hollow cavity. The filter screen 21 is embedded in the hollow cavity of the filter shell 2. The filter box 1, the mixing box 5, the external pipe 50, and the mixing group 51 are all commonly used structures in paint production and processing. The external pipe 50 is connected to the discharge port of the external grinder. These are all existing technologies. Some existing structures are not marked and need not be described in detail.

[0030] The reciprocating cylinder 41 is existing technology, and the cylinder rod 42 can achieve lateral reciprocating extension and retraction with adjustable distance.

[0031] The filter screen 21 is not higher than the filter screen shell 2. The liquid guide plate 22 is set between the filter screen 21 and the filter screen shell 2. The upper end surface of the liquid guide plate 22 is an inclined surface with an angle of 57 degrees with the horizontal plane. Combined with the hydrophobic layer 23, the pigment paint liquid falling on the liquid guide plate 22 can be quickly guided to the filter screen 21.

[0032] The infusion tube 71 has an overall L-shaped structure. There are two symmetrical infusion tubes 71, which are connected to the dispensing tube 7 respectively. The two infusion tubes 71 are combined with the matching liquid distribution cover 72 to further meet the effective filtration surface of the filter screen 21.

[0033] The telescopic pipe 6 is a corrugated pipe structure and is set horizontally. The corrugated pipe is made of metal and can only achieve the horizontal reciprocating telescopic effect, but does not affect the delivery of pigment paint liquid.

[0034] The upper bracket 4 has a U-shaped structure and is slidably connected to the cylinder rod 42 to achieve lateral guiding and reciprocating sliding of the cylinder rod 42.

[0035] The connector 61 is connected to the dispensing tube 7. The inner wall of the guide port 3 is provided with a smoothing layer 31, which is a graphite powder density coating layer with a smooth and flat surface, further improving the smoothness of the infusion tube 71 in the guide port 3.

[0036] The liquid dispersion hood 72 has a downward diffusion structure that diffuses towards the filter screen 21, allowing the color paste paint liquid to be quickly and comprehensively dispersed onto the filter screen 21.

[0037] The liquid distribution mesh 73 is embedded in the lower opening of the liquid distribution cover 72. The liquid distribution mesh 73 has a number of pre-set mesh holes with a slightly large diameter, allowing both liquid and particulate impurities to pass through. At the same time, the pigment paint liquid passes through the pre-set mesh holes on each liquid distribution mesh 73, forming multiple liquid streams. These multiple liquid streams are dispersed onto the impurity filter mesh 21, further improving the filtration efficiency for impurities in the pigment paint liquid.

[0038] The hydrophobic layer 23 is uniformly coated along the upper surface of the liquid guiding plate 22. The hydrophobic layer 23 is a PTFE polytetrafluoroethylene coating with a thickness of fifteen to twenty micrometers. The PTFE polytetrafluoroethylene coating has excellent hydrophobicity, a smooth surface, and is resistant to high temperature, corrosion and durability.

[0039] Working method: After the ground pigment raw material is fed into the mixing tank 5 through the external pipe 50, the mixing group 51 is started to mix the pigment raw material and the preset resin solvent to form a pigment coating liquid (existing technology).

[0040] Next, stop the stirring group 51 and open the preset valve on the liquid outlet pipe 52. At the same time, start the reciprocating cylinder 41. The color paste coating liquid can be input into the connecting pipe 61 through the liquid outlet pipe 52 and the telescopic pipe 6, and then input into the two delivery pipes 71 through the liquid distribution pipe 7. At the same time, the cylinder rod 42 on the reciprocating cylinder 41 will slide laterally along the preset sliding hole on the upper bracket 4 at a certain reciprocating distance. This will drive the two delivery pipes 71 to slide laterally along the two guide sliding ports 3 at a certain reciprocating distance. Meanwhile, the color paste coating liquid that has been stirred and mixed can be evenly and comprehensively dispersed on the surface of the filter screen 21 below through the liquid distribution cover 72 and the liquid distribution net 73. The filter screen 21 can effectively filter the impurity particles in the color paste coating liquid, increase the effective filtration area of ​​the filter screen 21 in the filter box 1, and thus greatly improve the filtration efficiency for particulate impurities in the color paste coating liquid.

[0041] In addition, during reciprocating infusion, some pigment coating liquid may fall onto the guide plate 22. Combined with the hydrophobic layer 23, the fallen pigment coating liquid can be quickly guided and concentrated into the filter screen 21 and filtered out, thus avoiding the accumulation of some pigment coating liquid on the guide plate 22 and causing waste.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A filtration device for paint production and processing, comprising a filter box (1), characterized in that: The filter box (1) is provided with a discharge pipe (11) and a filter screen shell (2). The filter screen shell (2) is provided with a filter screen (21). The filter box (1) is provided with a guide port (3). The guide port (3) is slidably connected to a liquid delivery pipe (71). The liquid delivery pipe (71) is connected to a liquid distribution cover (72). The liquid distribution cover (72) is provided with a liquid distribution net (73). The filter box (1) is provided with a middle partition plate (43). The middle partition plate (43) is provided with an upper support (4). The upper support (4) is provided with a reciprocating cylinder (41) and a stirring box (5). The reciprocating cylinder (41) is slidably connected to a cylinder rod (42). The cylinder rod (42) is provided with a liquid distribution pipe (7). The stirring box (5) is provided with a stirring group (51) and an external pipe (50). The mixing tank (5) is provided with a liquid outlet pipe (52), and a telescopic pipe (6) is connected to the liquid outlet pipe (52), and a connecting pipe (61) is connected to the telescopic pipe (6). The filter shell (2) is provided with a liquid guiding plate (22), and the liquid guiding plate (22) is provided with a hydrophobic layer (23).

2. The filtration device for paint production and processing according to claim 1, characterized in that: The filter shell (2) is a rectangular frame structure with a vertical through-hole cavity, and the filter screen (21) is embedded in the hollow cavity of the filter shell (2).

3. The filtration device for paint production and processing according to claim 1, characterized in that: The filter screen (21) is not higher than the filter screen shell (2), and the liquid guide plate (22) is disposed between the filter screen (21) and the filter screen shell (2). The upper surface of the liquid guide plate (22) is an inclined surface and has an angle of fifty-seven degrees with the horizontal plane.

4. A filtration device for paint production and processing according to claim 1, characterized in that: The infusion tube (71) is L-shaped in general. There are two infusion tubes (71) that are symmetrical on the left and right and are connected to the dispensing tube (7) respectively.

5. A filtration device for paint production and processing according to claim 1, characterized in that: The telescopic tube (6) is a corrugated tube structure and is arranged horizontally. The upper bracket (4) is a U-shaped structure and is slidably connected to the cylinder rod (42).

6. A filtration device for paint production and processing according to claim 1, characterized in that: The connecting pipe (61) is connected to the liquid distribution pipe (7), the inner wall of the guide port (3) is provided with a smoothing layer (31), the liquid distribution cover (72) is a diffusion structure facing the filter screen (21), and the liquid distribution screen (73) is embedded in the lower opening of the liquid distribution cover (72).

7. A filtration device for paint production and processing according to claim 1, characterized in that: The hydrophobic layer (23) is uniformly coated along the upper surface of the liquid guide plate (22). The hydrophobic layer (23) is a PTFE polytetrafluoroethylene coating with a thickness of fifteen to twenty micrometers.

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