Aramid polyimide filter material coating mechanism

Abstract

The utility model provides a kind of aramid polyimide filter material film coating mechanism, including rack, the rack is equipped with feed roller, film roller, heating box, press roller group and winding roller, the film roller is set in heating box top, the heating box two sides are respectively equipped with feed inlet and discharge outlet, the heating box upper surface is evenly equipped with several long holes.The utility model provides a kind of aramid polyimide filter material film coating mechanism, filter material coated with PTFE coating is passed through heating box, and the heating plate in heating box makes its surface PTFE coating melt after directly with film coating treatment, film roller is set in heating box top, and the heat of heating plate upper surface preheats film, so that the effect of film coating is better.

Description

Technical Field

[0001] This utility model relates to the field of filter material processing technology, specifically to an aramid polyimide filter material coating mechanism. Background Technology

[0002] Both NX (aramid) and PI (polyimide) fibers possess excellent mechanical strength, heat resistance, and abrasion resistance. PTFE (polytetrafluoroethylene) coatings exhibit superior chemical inertness, a low coefficient of friction, and excellent temperature resistance, remaining stable over a wide temperature range of -200°C to 260°C. They resist the erosion of almost all chemicals, including strong acids, strong alkalis, and organic solvents. The smooth surface of the PTFE coating possesses natural hydrophobic and oleophobic properties, effectively preventing dust and contaminant adhesion, simplifying the cleaning process, and extending the filter media's lifespan. However, NX and PI fibers have no melting point and cannot be directly heat-fused for coating. A PTFE coating must first be applied to the filter media surface, followed by high-temperature melting of the PTFE coating before coating. Currently available fabric coating devices cannot meet these requirements.

[0003] This case arose in order to resolve the aforementioned issues. Summary of the Invention

[0004] Technical problems to be solved The purpose of this invention is to provide an aramid polyimide filter material coating mechanism to solve the problems mentioned in the background art.

[0005] Technical solution To achieve the above objectives, this utility model is implemented through the following technical solution: an aramid polyimide filter material coating mechanism, including a frame, on which a feed roller, a film roller, a heating box, a pressure roller group and a winding roller are provided. The film roller is arranged above the heating box. The heating box has a feed port and a discharge port on both sides respectively. The upper surface of the heating box has a plurality of elongated holes evenly distributed.

[0006] Preferably, the heating box is equipped with a heating plate and a leveling roller, the heating plate is positioned above the leveling roller, and the leveling roller is at a higher horizontal height than the feed roller.

[0007] Preferably, the heating plate is provided with heating modules on both the upper and lower surfaces, and the temperature of the heating module on the upper surface of the heating plate is lower than the temperature of the heating module on the lower surface.

[0008] Preferably, the pressure roller group is located outside the discharge port of the heating box. The pressure roller group includes two pressure rollers, which are arranged vertically one above the other. The upper edge of the lower pressure roller is flush with the upper edge of the flattening roller.

[0009] Preferably, the pressure roller and the take-up roller are driven by a motor, which is located on the other side of the frame. Beneficial effects

[0010] After adopting the above technical solution, this utility model has the following advantages compared with the prior art: The aramid polyimide filter material coating mechanism of this utility model passes the filter material coated with PTFE through a heating box. The heating plate in the heating box melts the PTFE coating on its surface and directly coats it with the film. The film roller is set above the heating box, and the heat on the upper surface of the heating plate preheats the film, making the coating effect better. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the present invention; Figure 2 This is a schematic diagram of the internal structure of this utility model; Figure 3 for Figure 2 Add a front view of the filter media and membrane; In the diagram: 1. Frame, 2. Feed roller, 3. Film roller, 4. Heating box, 5. Pressure roller group, 6. Take-up roller, 7. Long strip hole, 8. Heating plate, 9. Flattening roller. Detailed Implementation

[0012] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be noted that the proportions shown in the drawings are not exactly the same as the actual proportions and are only used as examples. In the description of the present invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0013] This utility model embodiment provides an aramid polyimide filter material coating mechanism, such as... Figure 1-3 As shown, the machine includes a frame 1, on which a feed roller 2, a film roller 3, a heating box 4, a pressure roller group 5, and a take-up roller 6 are provided. The film roller 3 is located above the heating box 4. The heating box 4 has a feed port and a discharge port on both sides respectively. Several elongated holes 7 are evenly provided on the upper surface of the heating box 4. The temperature inside the heating box 4 is transmitted through the elongated holes 7 to preheat the film above it.

[0014] Reference Appendix Figure 2-3 The heating box 4 is equipped with a heating plate 8 and a flattening roller 9. The heating plate 8 is positioned above the flattening roller 9, and the horizontal height of the flattening roller 9 is higher than that of the feed roller 2, so that the filter material is heated by the heating plate 8 after being tensioned.

[0015] It should be noted that heating modules are provided on both the upper and lower surfaces of the heating plate 8. The temperature of the heating module on the upper surface of the heating plate 8 is lower than that of the heating module on the lower surface. The lower heating module melts the coating on the filter material, while the upper heating module preheats the membrane.

[0016] Reference Appendix Figure 2-3 The pressure roller assembly 5 is located outside the discharge port of the heating box 4. The pressure roller assembly 5 includes two pressure rollers, which are arranged vertically one above the other. The upper and lower pressure rollers cover the film onto the filter material. The upper edge of the lower pressure roller is flush with the upper edge of the flattening roller 9. The pressure rollers and the winding roller 6 are driven by a motor, which is located on the other side of the frame 1.

[0017] This invention relates to a membrane coating mechanism for aramid polyimide filter media. The filter media coated with PTFE is passed through a heating chamber. The heating plate inside the chamber melts the PTFE coating on its surface and then directly coats it with a thin film. The film roller is positioned above the heating chamber, and the heat from the upper surface of the heating plate preheats the film, resulting in a better coating effect.

[0018] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A membrane coating mechanism for aramid polyimide filter media, characterized in that: Includes a frame (1), on which are provided a feed roller (2), a film roller (3), a heating box (4), a pressure roller group (5) and a take-up roller (6). The film roller (3) is located above the heating box (4). The heating box (4) has a feed port and a discharge port on both sides respectively. The upper surface of the heating box (4) is evenly provided with several elongated holes (7).

2. The aramid polyimide filter material coating mechanism according to claim 1, characterized in that: The heating box (4) is equipped with a heating plate (8) and a leveling roller (9). The heating plate (8) is positioned above the leveling roller (9), and the leveling roller (9) is at a higher horizontal height than the feed roller (2).

3. The aramid polyimide filter material coating mechanism according to claim 2, characterized in that: Heating modules are provided on both the upper and lower surfaces of the heating plate (8), and the temperature of the heating module on the upper surface of the heating plate (8) is lower than the temperature of the heating module on the lower surface.

4. The aramid polyimide filter material coating mechanism according to claim 1, characterized in that: The pressure roller group (5) is located outside the discharge port of the heating box (4). The pressure roller group (5) includes two pressure rollers, which are arranged vertically one above the other. The upper edge of the lower pressure roller is flush with the upper edge of the flattening roller (9).

5. The aramid polyimide filter material coating mechanism according to claim 4, characterized in that: The pressure roller and the take-up roller (6) are driven by a motor, which is located on the other side of the frame (1).

Images