A surface impurity cleaning device and cleaning method for producing an elastic waterproof PTFE film

Abstract

The application belongs to the technical field of film production, and particularly discloses a surface impurity cleaning device and a cleaning method for elastic waterproof PTFE film production, which comprises a protective shell, a winding cavity is formed at the top of the protective shell near the rear side edge, a winding channel is formed at the front side of the protective shell, the rear side of the winding channel is in communication with the winding cavity, two conveying assemblies are arranged between the inner walls of the two sides of the winding channel near the front side edge; the PTFE film to be wound is wound on the winding drum through the winding channel, then the PTFE film is wound and pulled by the rotation of the winding drum, the conveying pressure of the conveying assembly on the PTFE film can be changed by the adjusting assembly before winding, and the outer surface of the PTFE film is coated with lubricating oil during conveying, so that a thin oil film is formed on the outer surface of the PTFE film, and the adhesion phenomenon of the subsequent PTFE films after winding is avoided.

Description

Technical Field

[0001] This invention relates to the field of film production technology, and in particular to a surface impurity cleaning device and cleaning method for the production of elastic waterproof PTFE films. Background Technology

[0002] Polytetrafluoroethylene (PTFE) is a self-lubricating material with extremely low coefficient of friction and excellent corrosion resistance. It is widely used in aerospace and defense industries. However, its wear resistance is poor. In order to make more effective use of the sliding properties of PTFE and better exert its oil-free lubrication and sealing performance, glass fiber is usually used as the fabric substrate. PTFE film is produced by this method. Film products need to be wound up after production.

[0003] Currently, when producing elastic waterproof PTFE film, it is necessary to clean the dust from its surface and then roll it up. However, during the winding process, the overlapping of the films generates an inward tightening force in the direction of the winding roller axis, which can easily cause the elastic films to stick together and make them difficult to separate later. Summary of the Invention

[0004] In order to solve the problems existing in the prior art, the present invention provides a surface impurity cleaning device and cleaning method for the production of elastic waterproof PTFE film.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a surface impurity cleaning device for the production of elastic waterproof PTFE film, comprising a protective shell, a winding cavity being provided at the top of the protective shell near the rear edge, a winding channel being provided at the front side of the protective shell, the rear side of the winding channel being connected to the winding cavity, two conveying components being provided between the inner walls of the two sides of the winding channel near the front edge, a connecting component being provided at one end of each of the two conveying components on one side of the inner wall of the protective shell, and an adjusting component being provided at one side edge of the outer side of the protective shell; Both sides of the inner wall of the winding cavity are rotatably equipped with snap-fit ​​plates, and a drive shaft is rotatably equipped on one side of the outer surface of the protective shell. One end of the drive shaft is connected to one of the snap-fit ​​plates. A winding roller is provided between the two snap-fit ​​plates, and a display screen is provided on the top of the protective shell.

[0006] Preferably, the conveying assembly includes a conveying roller, and grooves are provided on both sides of the inner wall of the winding channel near the front edge. A slider is slidably disposed between the inner walls of the two grooves. The conveying roller is rotatably connected between the opposite sides of the two sliders. A clamping cavity is provided on one side of one of the sliders, and one end of the conveying roller extends into the interior of the clamping cavity.

[0007] Preferably, the conveyor roller has a hollow cavity at its centerline, and the inner wall of the hollow cavity has multiple throttling holes that extend to the outer surface of the conveyor roller at equal intervals along the circumferential direction. The outer surface of the conveyor roller is fitted with a felt sleeve.

[0008] Preferably, one end of the conveyor roller has a bending hole that extends into the hollow cavity, one side of one slider has a flow channel, one end of the flow channel extends into the bottom surface of the card cavity and is connected to one end of the bending hole, and the other side of one slider has a positioning groove.

[0009] Preferably, the connecting component includes an adjusting block, an adjusting cavity is provided inside the protective shell near the slide groove, the adjusting block is slidably connected between the inner walls of the adjusting cavity, a transition cavity is provided inside the adjusting block, a plurality of filter ports extending to the outside are provided at equal intervals along the circumferential direction on the inner wall of the transition cavity, a contact rod is fixed on both sides of the adjusting block, an adjusting spring is fixed on one side of the adjusting block, and one end of the adjusting spring is fixed on one side of the inner wall of the adjusting cavity.

[0010] Preferably, the contact rod near the side of the slide groove extends into the inside of the slide groove and engages with the inside of the positioning groove. A flexible hose is fixed to the top of the protective shell, and the bottom of the flexible hose extends into the adjustment cavity. The bottom of the flexible hose is connected to the filter port.

[0011] Preferably, the protective shell has a storage cavity inside, and a feeding channel is provided on one side of the storage cavity near the top edge. One end of the feeding channel extends into the storage cavity and is opposite to the filter port. A side hole is provided on one side of the storage cavity in the middle. The side hole extends to the rear side of the chute and is connected to the guide channel.

[0012] Preferably, the adjusting assembly includes a reciprocating plate, and a reciprocating cavity is provided inside the protective housing. The reciprocating plate is slidably connected between the inner walls of the reciprocating cavity. Side openings are provided on both sides of the inner walls of the reciprocating cavity. One side opening extends into the interior of the slide groove, and the other side opening extends into the exterior of the protective housing. A reciprocating spring is fixed between the top of the reciprocating plate and the inner top surface of the reciprocating cavity. One end of another contact rod extends into the interior of the reciprocating cavity.

[0013] Preferably, an externally threaded tube is fixed to the outside of the protective shell. An adjusting sleeve is threadedly connected to one end edge of the outer surface of the externally threaded tube. An umbrella-shaped cover is fixed to one side edge of the outer surface of the adjusting sleeve. The top and bottom of the externally threaded tube are open near the edge of the protective shell. A triangular arc block is slidably arranged inside the opening on the externally threaded tube. One side of the reciprocating plate extends into the interior of the slide groove and is fixed to the slider. The other side of the reciprocating plate extends into the interior of the externally threaded tube and is fixed to the triangular arc block. The arc surface of the triangular arc block fits against the inner arc surface of the umbrella-shaped cover.

[0014] This invention also provides a method for cleaning surface impurities in the production of elastic waterproof PTFE films, applied to a surface impurity cleaning device for the production of elastic waterproof PTFE films. The method for cleaning surface impurities in the production of elastic waterproof PTFE films includes the following steps: Step S1: After passing one end of the PTFE film to be wound through the winding channel, it is wound onto the winding roller. Then, the PTFE film is wound and pulled up by the rotation of the winding roller. Before winding, the conveying clamping force of the conveying component on the PTFE film can be changed by adjusting the component. At the same time, lubricating oil is applied to the outer surface of the PTFE film during conveying to form a thin oil film on the outer surface of the PTFE film, so as to avoid the PTFE film from sticking together after winding. While driving the adjusting component to adjust the conveying component, the connecting component is also triggered to control the supply of lubricating oil. Step S2: When the adjustment component is working, by rotating the adjustment sleeve, one end of the umbrella-shaped cover slides towards the side wall of the protective shell. During the sliding process, the inner arc surface of the umbrella-shaped cover and the arc surface of the triangular arc block are in contact with each other, which can press the triangular arc block down and make it drive the conveying component to slide down. Step S3: When the connecting component is working, when the triangular arc block slides down, it will drive the reciprocating plate to slide down. When it slides to the bottom, it will release the constraint on the contact rod. Under the elastic force of the adjusting spring, the adjusting block will slide to one side, so that the filter port slides to the bottom of the hose, thereby connecting the bottom of the hose and the filter port. At the same time, the filter port will also connect with the feed channel, so that the lubricating oil can be injected into the storage cavity through the hose. Step S4: When the conveying assembly is working, each time the bending hole passes one end of the guide channel, it will introduce the solution inside the guide channel into the hollow cavity. Therefore, the end of the conveying roller that is locked inside the cavity will intermittently transport the oil inside the guide channel to the hollow cavity, and then flow to the felt sleeve through the throttling orifice. In this way, the outer surface of the PTFE film can be coated to form an oil film on the outer surface when conveying the PTFE film, and at the same time, the dust on the outer surface of the film can be adsorbed and removed.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. In this invention, one end of the PTFE film to be wound is wound onto the winding roller after passing through the winding channel. Then, the PTFE film is wound and pulled up by the rotation of the winding roller. Before winding, the conveying clamping force of the conveying component on the PTFE film can be changed by the adjustment component. At the same time, lubricating oil is coated on the outer surface of the PTFE film during conveying, so that a thin oil film is formed on the outer surface of the PTFE film, which prevents the PTFE films from overlapping and sticking together after winding. While driving the adjustment component to adjust the conveying component, the connecting component is also triggered to control the supply of lubricating oil. 2. In this invention, when the adjustment component is working, by rotating the adjustment sleeve, one end of the umbrella-shaped cover slides towards the side wall of the protective shell. During the sliding process, the inner arc surface of the umbrella-shaped cover and the arc surface of the triangular arc block are in contact with each other, thereby pressing the triangular arc block downward and causing it to drive the conveying component to slide downward. When the upper and lower openings of the external threaded tube are both equipped with triangular arc blocks, the control parts of the two conveying components can be connected. When driving the adjustment sleeve, the two conveying components can be driven to move relative to each other, thereby adjusting the clamping force when conveying the PTFE film. 3. In this invention, when the connecting component is working, the triangular arc block slides down, which will drive the reciprocating plate to slide down. When it slides to the bottom, it will release the constraint on the contact rod. Under the action of the elastic force of the adjusting spring, the adjusting block will slide to one side, so that the filter port slides to the bottom of the hose, thereby connecting the bottom of the hose and the filter port. 4. In this invention, when the conveying component is working, the bending hole will introduce the solution inside the channel into the hollow cavity each time it passes one end of the channel when the conveying roller rotates. Therefore, the end of the conveying roller that is locked inside the cavity will intermittently transport the oil inside the channel to the hollow cavity, and then flow to the felt sleeve through the throttling orifice. In this way, the outer surface of the PTFE film can be coated to form an oil film on the outer surface when conveying the PTFE film. Attached Figure Description

[0016] Figure 1 This invention provides a top-view perspective view of a surface impurity cleaning device for the production of elastic waterproof PTFE films. Figure 2 This invention provides a front-view perspective three-dimensional structural diagram of a surface impurity cleaning device for the production of elastic waterproof PTFE films; Figure 3 This invention provides a side-section perspective view of a surface impurity cleaning device for the production of elastic waterproof PTFE films. Figure 4 This invention provides a three-dimensional cross-sectional view of another side of a surface impurity cleaning device for the production of elastic waterproof PTFE films. Figure 5 This invention provides a side-section perspective view of the internal structure of a surface impurity cleaning device for the production of elastic waterproof PTFE films. Figure 6 This invention provides a three-dimensional cross-sectional view of the internal structure of a surface impurity cleaning device for the production of elastic waterproof PTFE films. Figure 7 For the present invention Figure 3 A magnified view of a portion of point A in the middle; Figure 8 For the present invention Figure 4 A magnified view of a portion of point B in the middle; Figure 9 For the present invention Figure 5 A magnified view of a portion of point C in the middle; Figure 10 For the present invention Figure 6 A magnified view of a portion of point D.

[0017] In the diagram: 1. Protective outer shell; 2. Winding channel; 3. Winding chamber; 4. Drive shaft; 5. Winding roller; 6. Clamping plate; 7. Display screen; 8. Adjusting sleeve; 9. Umbrella-shaped cover; 10. Hose; 11. Conveyor roller; 12. Hollow cavity; 13. Throttling orifice; 14. Felt sleeve; 15. Externally threaded pipe; 16. Triangular arc block; 17. Side opening; 18. Reciprocating chamber; 19. Reciprocating plate; 20. Reciprocating spring; 21. Slider; 22. Positioning groove; 23. Slide groove; 24. Drainage channel; 25. Bending hole; 26. Adjusting chamber; 27. Adjusting block; 28. Transition chamber; 29. ​​Filter port; 30. Adjusting spring; 31. Contact rod; 32. Storage chamber; 33. Side hole; 34. Feed channel; 35. Clamping cavity. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figure 1-10 The present invention provides a technical solution: a surface impurity cleaning device for the production of elastic waterproof PTFE film, including a protective shell 1, a winding cavity 3 is provided at the top of the protective shell 1 near the rear edge, a winding channel 2 is provided at the front side of the protective shell 1, the rear side of the winding channel 2 is connected to the winding cavity 3, two conveying components are provided between the inner walls of the two sides of the winding channel 2 near the front edge, a connecting component is provided at one end of each of the two conveying components on one side of the inner wall of the protective shell 1, and an adjustment component is provided at the outer side of the protective shell 1 near one side edge; Both sides of the inner wall of the winding cavity 3 are rotatably equipped with snap-fit ​​plates 6, and one side of the outer surface of the protective shell 1 is rotatably equipped with a drive shaft 4. One end of the drive shaft 4 is connected to one of the snap-fit ​​plates 6. A winding roller 5 is provided between the two snap-fit ​​plates 6, and a display screen 7 is provided on the top of the protective shell 1.

[0020] The effect achieved is that one end of the PTFE film to be wound is wound onto the winding roller 5 after passing through the winding channel 2. Then, the PTFE film is wound and pulled up by the rotation of the winding roller 5. Before winding, the conveying clamping force of the conveying component on the PTFE film can be changed by the adjustment component. At the same time, lubricating oil is coated on the outer surface of the PTFE film during conveying, so that a thin oil film is formed on the outer surface of the PTFE film, which prevents the PTFE film from overlapping and sticking together after winding. While driving the adjustment component to adjust the conveying component, the connecting component is also triggered to control the supply of lubricating oil.

[0021] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 7 and Figure 8 As shown, the conveying assembly includes a conveying roller 11. Slide grooves 23 are provided on both sides of the inner wall of the winding channel 2 near the front edge. Sliding blocks 21 are slidably disposed between the inner walls of the two slide grooves 23. The conveying roller 11 is rotatably connected between the opposite sides of the two sliding blocks 21. A clamping cavity 35 is provided on one side of one of the sliding blocks 21. One end of the conveying roller 11 extends into the interior of the clamping cavity 35. A hollow cavity 12 is provided inside the conveying roller 11 at its axis. Multiple throttling holes 13, extending to the outer surface of the conveying roller 11, are equidistantly provided on the inner wall of the hollow cavity 12 along the circumferential direction. A felt sleeve 14 is fitted onto the outer surface of the conveying roller 11. A bending hole 25, extending to the interior of the hollow cavity 12, is provided at one end of the conveying roller 11. A guide channel 24 is provided on the rear side of one of the sliding blocks 21. One end of the guide channel 24 extends to the inner bottom surface of the clamping cavity 35 and is connected to one end of the bending hole 25. A positioning groove 22 is provided on the other side of one of the sliding blocks 21.

[0022] The effect achieved is that by rotating the adjusting sleeve 8, one end of the umbrella-shaped cover 9 slides towards the side wall of the protective shell 1. During the sliding process, the inner arc surface of the umbrella-shaped cover 9 and the arc surface of the triangular arc block 16 are in contact with each other, which can press the triangular arc block 16 downward, causing it to drive the conveying component to slide downward. When the upper and lower openings of the external threaded tube 15 are both equipped with triangular arc blocks 16, the control parts of the two conveying components can be connected. When driving the adjusting sleeve 8, the two conveying components can be driven to move relative to each other, thereby adjusting the clamping force when conveying the PTFE film.

[0023] like Figure 4 , Figure 5 , Figure 6 , Figure 8 , Figure 9 and Figure 10As shown, the connecting assembly includes an adjusting block 27. An adjusting cavity 26 is formed inside the protective housing 1 near the slide groove 23. The adjusting block 27 is slidably connected to the inner wall of the adjusting cavity 26. A transition cavity 28 is formed inside the adjusting block 27. Multiple filter ports 29 extending to the outside are equidistantly formed along the circumferential direction on the inner wall of the transition cavity 28. Contact rods 31 are fixed on both sides of the adjusting block 27. An adjusting spring 30 is fixed on one side of the adjusting block 27. One end of the adjusting spring 30 is fixed to the inner wall of one side of the adjusting cavity 26. The contact rod 31 near the slide groove 23 extends through the slide groove. Inside the protective shell 1, a flexible tube 10 is fixed to the top of the protective shell 1 and the bottom of the flexible tube 10 extends into the adjustment cavity 26. The bottom of the flexible tube 10 is connected to the filter port 29. A storage cavity 32 is provided inside the protective shell 1. A feeding channel 34 is provided on one side of the storage cavity 32 near the top edge. One end of the feeding channel 34 extends into the storage cavity 32 and is opposite to the filter port 29. A side hole 33 is provided on one side of the storage cavity 32 in the middle. The side hole 33 extends into the rear side of the slide 23 and is connected to the guide channel 24.

[0024] The effect achieved is as follows: when the adjusting component is not working, the reciprocating plate 19 is located inside and above the reciprocating cavity 18. At this time, the reciprocating spring 20 exerts a small upward pulling force on the reciprocating plate 19, and one end of the contact rod 31, which penetrates into the reciprocating cavity 18, is in contact with the outer surface of the reciprocating plate 19. At this time, the bottom of the hose 10 is in contact with the outer surface of the adjusting block 27, the filter port 29 is located on one side of the bottom of the hose 10, and one end of the feed channel 34 is also located on one side of the filter port 29. Therefore, at this time, the feed channel 34 and the hose 10 cannot be connected through the filter port 29. At this time, the adjusting spring 30 is in a compressed state. When the triangular arc block 16 slides downward, it will drive the reciprocating plate 19 to slide downward. When it slides to the bottom... When the contact rod 31 is released, the elastic force of the adjusting spring 30 causes the adjusting block 27 to slide to one side, so that the filter port 29 slides directly below the hose 10, thereby connecting the bottom of the hose 10 and the filter port 29. At the same time, the filter port 29 also connects with the feed channel 34, allowing the lubricating oil to be injected into the storage cavity 32 through the hose 10. When the contact rod 31 in the reciprocating cavity 18 is not released from its limit, the contact rod 31 on the other side of the adjusting block 27 is engaged in the positioning groove 22, which can position the slider 21 and prevent the slider 21 from sliding to the top of the slide groove 23, causing the felt sleeve 14 to stick to the top surface of the winding channel 2 and contaminating the felt sleeve 14.

[0025] like Figure 1 , Figure 4 , Figure 5 , Figure 6 , Figure 8 , Figure 9 and Figure 10As shown, the adjusting assembly includes a reciprocating plate 19, and a reciprocating cavity 18 is formed inside the protective housing 1. The reciprocating plate 19 is slidably connected between the inner walls of the reciprocating cavity 18. Side openings 17 are formed on both sides of the inner walls of the reciprocating cavity 18. One side opening 17 extends into the interior of the slide groove 23, and the other side opening 17 extends into the exterior of the protective housing 1. A reciprocating spring 20 is fixed between the top of the reciprocating plate 19 and the inner top surface of the reciprocating cavity 18. One end of another contact rod 31 extends into the interior of the reciprocating cavity 18. An externally threaded tube 15 is fixed to the exterior of the protective housing 1. An adjusting sleeve 8 is threadedly connected to one end edge of the outer surface of the 5. An umbrella-shaped cover 9 is fixed to one side edge of the outer surface of the adjusting sleeve 8. The top and bottom of the external threaded tube 15 are open near the edge of the protective shell 1. A triangular arc block 16 is slidably arranged inside the opening on the external threaded tube 15. One side of the reciprocating plate 19 extends into the interior of the slide groove 23 and is fixed to the slider 21. The other side of the reciprocating plate 19 extends into the interior of the external threaded tube 15 and is fixed to the triangular arc block 16. The arc surface of the triangular arc block 16 fits against the inner arc surface of the umbrella-shaped cover 9.

[0026] The effect is that during the downward sliding of the reciprocating plate 19, the slider 21 will slide downward. When the slider slides to the point where the channel 24 is opposite to the side hole 33, the lubricating oil inside the storage cavity 32 can enter the interior of the channel 24 through the side hole 33. When the conveyor roller 11 rotates, the bending hole 25 will introduce the solution inside the channel 24 into the hollow cavity 12 each time it passes one end of the channel 24. Therefore, the end of the conveyor roller 11 that is engaged in the cavity 35 will intermittently transport the oil inside the channel 24 to the hollow cavity 12, and then flow to the felt sleeve 14 through the throttling hole 13. In this way, the outer surface of the PTFE film can be coated to form an oil film on the outer surface during the conveying of the PTFE film.

[0027] For example, in one embodiment, the present invention also provides a method for cleaning surface impurities in the production of elastic waterproof PTFE films, applied to the above-mentioned surface impurity cleaning apparatus for the production of elastic waterproof PTFE films, comprising the following steps: Step S1: After passing one end of the PTFE film to be wound through the winding channel 2, it is wound onto the winding roller 5. Then, the PTFE film is wound and pulled up by the rotation of the winding roller 5. Before winding, the conveying pressure of the conveying component on the PTFE film can be changed by the adjustment component. At the same time, lubricating oil is applied to the outer surface of the PTFE film during conveying, so that a thin oil film is formed on the outer surface of the PTFE film to prevent the PTFE film from overlapping and sticking together after winding. While driving the adjustment component to adjust the conveying component, the connecting component is also triggered to control the supply of lubricating oil. Step S2: When the adjustment component is working, by rotating the adjustment sleeve 8, one end of the umbrella-shaped cover 9 slides towards the side wall of the protective shell 1. During the sliding process, the inner arc surface of the umbrella-shaped cover 9 and the arc surface of the triangular arc block 16 fit together, thereby pressing the triangular arc block 16 downward and causing it to drive the conveying component to slide downward. Step S3: When the connecting component is working, when the triangular arc block 16 slides down, it will drive the reciprocating plate 19 to slide down. When it slides to the bottom, it will release the constraint on the contact rod 31. Under the elastic force of the adjusting spring 30, the adjusting block 27 will slide to one side, so that the filter port 29 slides directly below the hose 10, thereby connecting the bottom of the hose 10 and the filter port 29. At the same time, the filter port 29 will also connect with the feed channel 34, so that the lubricating oil can be injected into the storage cavity 32 through the hose 10. Step S4: When the conveying assembly is working, each time the bending hole 25 passes one end of the guide channel 24, it will introduce the solution inside the guide channel 24 into the hollow cavity 12. Therefore, the end of the conveying roller 11 that is engaged in the cavity 35 will intermittently transport the oil inside the guide channel 24 into the hollow cavity 12, and then flow to the felt sleeve 14 through the throttling hole 13. In this way, the outer surface of the PTFE film can be coated to form an oil film on the outer surface when conveying the PTFE film, and at the same time, the dust on the outer surface of the film can be adsorbed and removed.

[0028] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A surface impurity cleaning device for the production of elastic waterproof PTFE film, characterized in that, The protective housing (1) includes a winding cavity (3) at the top of the protective housing (1) near the rear edge, a winding channel (2) at the front of the protective housing (1), the rear side of the winding channel (2) is connected to the winding cavity (3), two conveying components are provided between the inner walls of the two sides of the winding channel (2) near the front edge, a connecting component is provided on one side of the inner wall of the protective housing (1) at one end of the two conveying components, and an adjustment component is provided on the outside of the protective housing (1) near one side edge; The inner walls of both sides of the winding cavity (3) are rotatably provided with snap-fit ​​plates (6). The outer surface of one side of the protective shell (1) is rotatably provided with a drive shaft (4). One end of the drive shaft (4) is connected to one of the snap-fit ​​plates (6). A winding roller (5) is provided between the two snap-fit ​​plates (6). A display screen (7) is provided on the top of the protective shell (1). The connecting assembly includes an adjusting block (27). An adjusting cavity (26) is provided inside the protective shell (1) near the slide groove (23). The adjusting block (27) is slidably connected between the inner walls of the adjusting cavity (26). A transition cavity (28) is provided inside the adjusting block (27). Multiple filter ports (29) extending to the outside are provided at equal intervals along the circumferential direction on the inner wall of the transition cavity (28). Contact rods (31) are fixed on both sides of the adjusting block (27). An adjusting spring is fixed on one side of the adjusting block (27). Spring (30), one end of the adjusting spring (30) is fixed on the inner wall of one side of the adjusting cavity (26), the contact rod (31) near the side of the slide groove (23) passes through the inside of the slide groove (23) and is engaged in the inside of the positioning groove (22), the top of the protective shell (1) is fixed with a hose (10), the bottom of the hose (10) passes through the inside of the adjusting cavity (26), and the bottom of the hose (10) is connected to the filter port (29), the inside of the protective shell (1) is provided with a storage cavity (32), the side of the storage cavity (32) near the top edge is provided with a feeding channel (34), one end of the feeding channel (34) passes through the inside of the storage cavity (32) and is opposite to the filter port (29), the side of the storage cavity (32) is provided with a side hole (33) in the middle, the side hole (33) passes through the rear side of the slide groove (23) and is connected to the drainage channel (24); The adjusting assembly includes a reciprocating plate (19), and a reciprocating cavity (18) is provided inside the protective shell (1). The reciprocating plate (19) is slidably connected between the inner walls of the reciprocating cavity (18). Side openings (17) are provided on both sides of the inner walls of the reciprocating cavity (18). One side opening (17) extends into the interior of the slide groove (23), and the other side opening (17) extends into the exterior of the protective shell (1). A reciprocating spring (20) is fixed between the top of the reciprocating plate (19) and the inner top surface of the reciprocating cavity (18). One end of another contact rod (31) extends into the interior of the reciprocating cavity (18). An external threaded tube (15) is fixed to the exterior of the protective shell (1). An adjusting sleeve (8) is threaded to one end edge of the outer surface of the external threaded tube (15). An umbrella-shaped cover (9) is fixed to one side edge of the outer surface of the adjusting sleeve (8). The top and bottom edges of the external threaded tube (15) are open near the protective shell (1). A triangular arc block (16) is slidably arranged inside the opening on the external threaded tube (15). One side of the reciprocating plate (19) extends into the interior of the slide groove (23) and is fixed to the slider (21). The other side of the reciprocating plate (19) extends into the interior of the external threaded tube (15) and is fixed to the triangular arc block (16). The arc surface of the triangular arc block (16) is in contact with the inner arc surface of the umbrella-shaped cover (9). The conveying assembly includes a conveying roller (11). Slide grooves (23) are provided on both sides of the inner wall of the winding channel (2) near the front edge. A slider (21) is slidably disposed between the inner walls of the two slide grooves (23). The conveying roller (11) is rotatably connected between opposite sides of the two sliders (21). A retaining cavity (35) is provided on one side of one of the sliders (21). One end of the conveying roller (11) extends into the retaining cavity (35). A hollow cavity (12) is provided inside the conveying roller (11) at its axis. The inner wall of the conveyor roller (11) is provided with multiple throttling holes (13) that penetrate to the outer surface of the conveyor roller (11) at equal intervals along the circumferential direction. The outer surface of the conveyor roller (11) is fitted with a felt sleeve (14). One end of the conveyor roller (11) is provided with a bending hole (25) that penetrates to the interior of the hollow cavity (12). One of the sliders (21) is provided with a flow channel (24) on the rear side. One end of the flow channel (24) penetrates to the bottom surface of the card cavity (35) and is connected to one end of the bending hole (25). One of the sliders (21) is provided with a positioning groove (22) on the other side.

2. A method for cleaning surface impurities in the production of elastic waterproof PTFE films, wherein the method is applied to the surface impurity cleaning device for the production of elastic waterproof PTFE films as described in claim 1, characterized in that, Includes the following steps: Step S1: After passing one end of the PTFE film to be wound through the winding channel (2), it is wound onto the winding roller (5). Then, the PTFE film is wound and pulled by the rotation of the winding roller (5). Before winding, the conveying pressure of the conveying component on the PTFE film can be changed by adjusting the component. At the same time, lubricating oil is applied to the outer surface of the PTFE film during conveying, so that a thin oil film is formed on the outer surface of the PTFE film to avoid the adhesion phenomenon caused by the overlapping of the PTFE films after winding. While driving the adjusting component to adjust the conveying component, the connecting component is also triggered to control the supply of lubricating oil. Step S2: When the adjustment component is working, by rotating the adjustment sleeve (8), one end of the umbrella-shaped cover (9) slides towards the side wall of the protective shell (1). During the sliding process, the inner arc surface of the umbrella-shaped cover (9) and the arc surface of the triangular arc block (16) fit together, thereby pressing the triangular arc block (16) down and causing it to drive the conveying component to slide down. Step S3: When the connecting component is working, when the triangular arc block (16) slides down, it will drive the reciprocating plate (19) to slide down. When it slides to the bottom, it will release the constraint on the contact rod (31). Under the elastic force of the adjusting spring (30), the adjusting block (27) will slide to one side, so that the filter port (29) will slide to the bottom of the hose (10), thereby connecting the bottom of the hose (10) and the filter port (29). At the same time, the filter port (29) will also connect with the feed channel (34), so that the lubricating oil can be injected into the storage cavity (32) through the hose (10). Step S4: When the conveying assembly is working, when the conveying roller (11) rotates, the bending hole (25) will introduce the solution inside the channel (24) into the hollow cavity (12) each time it passes one end of the channel (24). Therefore, the end of the conveying roller (11) that is locked inside the cavity (35) will intermittently transport the oil inside the channel (24) to the hollow cavity (12), and then flow to the felt sleeve (14) through the throttling hole (13). In this way, the outer surface of the PTFE film can be coated to form an oil film on the outer surface when conveying the PTFE film, and the dust on the outer surface of the film can be adsorbed and removed at the same time.

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