CN118270576A - PE film winding machine with adjustable tension and tension adjusting method thereof - Google Patents

Abstract

The invention relates to the technical field of PE film winding machines and discloses a PE film winding machine with adjustable tension and a tension adjusting method thereof.

Description

A PE film winding machine with adjustable tension and tension adjustment method thereof

Technical Field

The invention relates to the technical field of PE film winders, and in particular to a PE film winder with adjustable tension and a tension adjustment method thereof.

Background technique

PE film, also known as polyethylene film, refers to a film produced from PE particles. PE film is moisture-proof and has low moisture permeability.

In the prior art, when rolling up a PE film substrate, a machine is usually used to clamp the two ends of the PE film, stretch and roll the PE film, but wrinkles often appear during actual rolling, and it needs to be flattened before rolling up to prevent the wrinkles of the PE film from causing a decrease in surface tension, resulting in poor use of the PE film. In addition, the surface of the PE film is easily adsorbed by dust in the air. When it is contaminated, the pollutants will be rolled up together during rolling, which will cause the surface tension of the PE film to decrease. At the same time, the thickness of the PE film is relatively thin. Although the machine can adjust the surface tension of the PE film by stretching when clamping the PE film, if the PE film is over-stretched, it will cause damage to the PE film, resulting in increased loss of the substrate.

Summary of the invention

In view of the deficiencies in the prior art, the present invention provides a PE film winding machine with adjustable tension and a tension adjustment method thereof, which have the advantages of preventing the thickness of the PE film from being uneven during winding, causing wrinkle accumulation, reducing the surface tension of the PE film, and resulting in poor use effect of the PE film.

To achieve the above object, the present invention provides the following technical solutions: a tension-adjustable PE film winder, comprising a containing box, wherein a rolling assembly, a cleaning assembly, a winding roller, a flattening assembly, a positioning assembly, and a limiting assembly are arranged inside the containing box;

The rolling component is used to flatten the PE film;

The cleaning component is arranged inside the rolling component, and the cleaning component is used to clean the surface of the flattened PE film;

The flattening component is used to flatten the cleaned components;

The winding roller is used to wind up the PE film;

The positioning assembly is used to adjust the rolling assembly and the cleaning assembly;

The limit assembly is used to limit the positioning assembly.

Preferably, the rolling assembly includes a rotating rod rotatably connected in the containing box, a plurality of arc plates are fixedly connected to the rotating rod, and the plurality of arc plates are arranged along the circumference of the rotating rod, and a fixing ring is fixedly connected to the top of the inner side of the containing box.

Preferably, the flattening assembly includes a support frame slidably connected in the containing box, the support frame is fixedly connected to a display board, a side of the support frame close to the display board is fixedly connected to an inclined plate, the inclined plate is used to shovel dust on the surface of the PE film on the top of the display board, a positioning rod is fixedly connected to the top of the support frame, a fixed plate is fixedly connected to the side of the support frame close to the display board, the end of the fixed plate is rotatably connected to a spiral roller, and a side of the fixed plate close to the display board is fixedly connected to an inclined scraper.

Preferably, the positioning assembly includes a disc fixedly connected to the containing box, the top of the disc is rotatably connected to a rotating column, the rotating column is rotatably connected to a connecting frame, and the top of the rotating column is fixedly connected to a first limiting strip.

Preferably, a supporting rod corresponding to the arc plate is rotatably connected to the rotating rod, a cleaning roller is fixedly connected to the supporting rod, a driving gear is fixedly connected to the outside of the rotating rod, a driven gear meshing with the driving gear is fixedly connected to the outside of the supporting rod, a side of the driven gear away from the driving gear is meshed with the same meshing ring, a rotating roller is arranged under the arc plate, fixed plates are slidably connected to both sides of the rotating roller, the fixed plates are fixedly connected to the containing box, and a sliding frame for changing the position of the rotating roller is fixedly connected to one side of the fixed plate.

Preferably, the cleaning assembly includes a support rod rotatably connected to both sides of a rotating rod, the support rod is located inside a plurality of arc-shaped plates, a cleaning roller is rotatably connected to the support rod, the cleaning roller can contact the PE film through the gap between two adjacent arc-shaped plates, and a plurality of arc-shaped plates are assembled to the rotating rod to form a circular shape.

Preferably, the positioning assembly also includes a rotating ring rotatably connected to the inner bottom of the containing box, the rotating ring is rotatably connected to the disc, the top of the rotating ring is fixedly connected to a limiting column, a limiting hole is provided on the top of the limiting column, and a first limiting strip is fixedly connected to the outer side of the rotating column.

Preferably, the limit assembly includes a connecting column meshingly connected to the limit column, the connecting column passes through the top of the containing box, the top of the connecting column is fixedly connected to the limit plate, the top of the limit plate is fixedly connected to a plurality of first limit blocks, the top outside the containing box is provided with a limit slot adapted to the first limit block, the connecting column is fixedly connected to the first limit plate, the connecting column is fixedly connected to the second limit plate, the connecting column is rotatably connected to the connecting column, the first limit plate is located at the top of the pin ring, the second limit plate is located at the bottom of the pin ring, the bottom of the connecting column is fixedly connected to the limit ring, a plurality of second limit strips are fixedly connected to the outside of the limit ring, and a plurality of first limit grooves adapted to the first limit strips are provided on the inside of the limit ring.

A tension adjustment method for a PE film winder with adjustable tension, comprising the following steps:

S1. Rotate the limit assembly, adjust the rolling assembly, rotate the positioning assembly, adjust the distance between the rolling assembly and the flattening assembly, and connect the rolling assembly, the flattening assembly and the winding roller to the external rotating equipment;

S2, start the external rotating device, unfold the processed PE film, and insert the rolling assembly. The PE film passes through the rolling assembly. Under the action of the rolling assembly, the PE film is clamped and under the operation of the rolling assembly, the cleaning assembly contacts the surface of the PE film to remove dust on the surface of the PE film, and then the pressed PE film passes through the rolling assembly;

S3, the PE film passes through the rolling component, is received by the flattening component, and passes through the flattening component. In the process of passing through the flattening component, the flattening component stretches the PE film to both sides, then flattens the wrinkles on the surface of the PE film during stretching, and scrapes off the dust remaining on the surface. The PE film after the dust is scraped off passes through the flattening component;

S4, the winding roller receives the PE film passing through the flattening component and rewinds the PE film. After the rewinding is completed, the winding roller is taken out of the storage box for storage.

Beneficial effects of the present invention:

1. The PE film winding machine with adjustable tension guides the PE film through the display board and then through the support frame by setting a spiral roller, thereby improving the work efficiency of transporting PE. At the same time, the spiral blades on the surface of the spiral roller stretch the PE film to the side away from each other when rotating, thereby adjusting the tension on the surface of the PE film, and with the cooperation of the inclined scraper and the shovel plate, the warping generated after stretching is scraped off, thereby avoiding the warped PE film from being rolled up and affecting the rolling effect, improving the efficiency of PE film rolling, and reducing the cost of PE film rolling.

2. The PE film winder with adjustable tension is provided with an arc plate and a cleaning roller. The driven gear rotates and revolves under the cooperation of the driving gear and the meshing ring. The revolution of the driven gear makes the support rod rotate continuously in the arc plate. The rotation of the driven gear makes the cleaning roller rotate continuously while the support rod revolves. When the cleaning roller rotates, it cleans the surface of the PE film through the gap between the arc plates to prevent dust on the surface of the PE film from being rolled into the winder. After winding, the continuous accumulation of dust will cause wrinkles on the surface of the PE film, resulting in damage to the PE film due to tightening after winding, affecting the use effect of the PE film, improving the yield rate of the PE film when winding, and reducing the increased cost of PE film damage caused by dust accumulation when winding the PE film.

3. This PE film winder with adjustable tension is provided with a limit plate and a rotating column. The limit plate is rotated to drive the rotating column to rotate, thereby moving the connecting frame and the sliding frame. Air pressure is used to move the rotating roller up and down, thereby changing the gap between the arc plate and the rotating roller, changing the pressure of the arc plate and the rotating roller on the PE film, cleaning the dust on the surface of the PE film, avoiding the PE film from warping up during the cleaning process and resulting in incomplete cleaning, and improving the cleaning efficiency of the cleaning roller.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a schematic diagram of the present invention;

FIG2 is a schematic diagram of the interior of the present invention;

FIG3 is a schematic diagram of a rolling assembly of the present invention;

FIG4 is an enlarged three-dimensional schematic diagram of point A in FIG3 ;

FIG5 is a schematic diagram of a cleaning assembly of the present invention;

FIG6 is a schematic diagram of the interior of a cleaning assembly of the present invention;

FIG7 is a perspective schematic diagram of a positioning assembly of the present invention;

FIG8 is a schematic diagram of a partial three-dimensional structure of a limit assembly;

FIG9 is a schematic diagram of the three-dimensional structure of the limiting component;

FIG10 is a schematic diagram of the three-dimensional structure at B in FIG9;

FIG11 is a schematic diagram of the internal structure of the flattening component;

FIG12 is a schematic diagram of the enlarged structure of point C in FIG11;

FIG. 13 is a schematic diagram of the three-dimensional structure after the limiting column and the rotating ring are assembled.

In the figure: 1. a containing box;

2. curved plate; 21. rotating rod; 22. supporting rod; 23. cleaning roller; 24. driven gear; 25. driving gear; 26. fixed plate; 27. sliding frame; 28. rotating roller; 29. meshing ring

3. Display board; 31. Support frame; 32. Shovel board; 33. Positioning rod; 34. Fixed block; 35. Spiral roller; 36. Oblique scraper;

4. Winding roller;

5. rotating ring; 51. limiting column; 52. disc; 53. rotating column; 54. connecting frame; 55. first limiting strip; 56. limiting hole;

6. Limiting disk; 61. First limiting block; 62. Limiting ring; 63. Connecting column; 64. First limiting plate; 65. Second limiting plate; 66. Second limiting strip; 67. First limiting groove; 68. Fixing ring; 69. Latch ring.

Detailed ways

In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

Embodiment 1

A PE film winder with adjustable tension comprises a containing box 1, wherein a rolling assembly, a cleaning assembly, a winding roller 4, a flattening assembly, a positioning assembly, and a limiting group are arranged inside the containing box 1, wherein the rolling assembly is used to flatten the PE film, the cleaning assembly is arranged inside the rolling assembly, the cleaning assembly is used to clean the surface of the flattened PE film, the flattening assembly is used to flatten the cleaned assembly, the winding roller 4 is used to wind the PE film, the positioning assembly is used to adjust the rolling assembly and the cleaning assembly, and the limiting assembly is used to limit the positioning assembly.

Please refer to Figures 1 to 5. When rolling up the PE film, the PE film is inserted into the rolling assembly, then passed through the flattening assembly, and fixed on the winding roller 4. When the surface tension of the PE film needs to be adjusted, the distance between the rollers in the rolling assembly can be changed by rotating the positioning assembly to adjust the tension of the PE film and flatten the wrinkles of the PE film at the same time to avoid uneven thickness of the PE film during rolling, resulting in wrinkle accumulation, reducing the surface tension of the PE film, and causing poor use of the PE film.

After the PE film passes through the rolling component, it is unfolded on the flattening component. The PE film is stretched to both sides while the flattening component cleans the dust on the surface to prevent the dust from being rolled up along with the PE film. The accumulation of dust will cause wrinkles on the surface of the PE film, causing the PE film to be damaged due to tightening after rolling up, resulting in poor use effect.

While the PE film passes through the rolling component and the flattening component, the distance between the rolling component and the flattening component is adjusted by rotating the positioning component to avoid excessive stretching of the PE film due to the large distance during the process of conveying the PE film to the flattening component, resulting in damage to the PE film due to tightening after winding, resulting in poor use effect. At the same time, the distance between the rolling component and the flattening component is reduced, and the time the PE film stays in the air is reduced to achieve fast winding, and reduce the dust in the air from adhering to the surface of the PE film during the process of conveying the PE film from the rolling component to the flattening component.

By setting up a rolling component, the PE film is fed into the rolling component, and the rolling component rolls the PE film to flatten the wrinkles, and at the same time, the PE film is rolled up smoothly, which avoids the wrinkles being rolled up by the winder and causing wrinkle accumulation. In addition, the PE film is relatively thin, and wrinkles accumulate, making the surface of the PE film uneven when it is rolled up, resulting in damage to the PE film due to tightening after rolling, and poor use effect.

By setting up a flattening component, the PE film flattened by the rolling component passes through the flattening component, and the rolled PE film is flattened by the flattening component, and then the dust on the surface of the PE film is blown away, thereby preventing the wrinkles from being rolled up by the winder and causing wrinkle accumulation. In addition, the thickness of the PE film is relatively thin, and wrinkles accumulate, making the surface of the PE film uneven when it is rolled up, resulting in damage to the PE film due to tightening after rolling up, and poor use effect.

Embodiment 2

The rolling assembly includes a rotating rod 21 rotatably connected in the containing box 1 , a plurality of arc plates 2 are fixedly connected to the rotating rod 21 , and the plurality of arc plates 2 are arranged along the circumference of the rotating rod 21 , and a fixing ring 68 is fixedly connected to the top of the inner side of the containing box 1 .

The flattening assembly includes a support frame 31 slidably connected in the containing box 1, the support frame 31 is fixedly connected to the display board 3, a shovel plate 32 is fixedly connected to the side of the support frame 31 close to the display board 3, the shovel plate 32 is used to shovel dust on the surface of the PE film on the top of the display board 3, a positioning rod 33 is fixedly connected to the top of the support frame 31, a fixed block 34 is fixedly connected to the side of the support frame 31 close to the display board 3, the end of the fixed block 34 is rotatably connected to a spiral roller 35, and the fixed block 34 is fixedly connected to the side of the display board 3.

A supporting rod 22 corresponding to the arc plate 2 is rotatably connected to the rotating rod 21, a cleaning roller 23 is fixedly connected to the supporting rod 22, a driving gear 25 is fixedly connected to the outside of the rotating rod 21, a driven gear 24 meshing with the driving gear 25 is fixedly connected to the outside of the supporting rod 22, a side of the driven gear 24 away from the driving gear 25 is meshed with the same meshing ring 29, a rotating roller 28 is arranged below the arc plate 2, both sides of the rotating roller 28 are slidably connected with fixed plates 26, the fixed plate 26 is fixedly connected to the containing box 1, and one side of the fixed plate 26 is fixedly connected to a sliding frame 27 for changing the position of the rotating roller 28.

The cleaning assembly includes a support rod 22 rotatably connected to both sides of a rotating rod 21, the support rod 22 is located inside a plurality of arc-shaped plates 2, a cleaning roller 23 is rotatably connected to the support rod 22, the cleaning roller 23 can contact the PE film through the gap between two adjacent arc-shaped plates 2, and a plurality of arc-shaped plates 2 are assembled to the rotating rod 21 to form a circular shape.

Please refer to Figures 1 to 6. Insert the PE film between the curved plate 2 and the rotating roller 28, then pass through the flattening assembly, and finally fix it to the winding roller 4. Under normal conditions, the bottom of the curved plate 2 abuts against the top of the PE film, and the top of the rotating roller 28 abuts against the bottom of the PE film. Connect the output end of the external rotating device to the winding roller 4, turn on the external rotating device, and the external rotating device rotates to drive the winding roller 4 to rotate. The rotation of the winding roller 4 causes the PE film to be pulled from the rolling device through the cleaning assembly and finally sent to the winding roller 4 for winding. The external rotating device causes the curved plate 2, the rotating rod 21 and the winding roller 4 to rotate together. Rotation, when the rotating rod 21 and the arc plate 2 rotate together, the driving gear 25 fixedly connected to the rotating rod 21 rotates with the rotating rod 21, and under the rotation of the driving gear 25 and the cooperation of the meshing ring 29, the driving gear 25 drives the driven gear 24 to rotate in the opposite direction and revolve around the driving gear 25, and the rotation of the driven gear 24 causes the cleaning roller 23 fixedly connected to the driven gear 24 to rotate together, and the cleaning roller 23 continuously rotates so that the flexible cleaning head on the surface of the cleaning roller 23 continuously passes through the gap between the arc plates 2, so that the cleaning roller 23 can achieve the effect of cleaning the surface of the PE film.

After the PE film passes through the curved plate 2, it reaches the top of the display board 3 under the guidance of the rotation of the spiral roller 35, and moves to the side away from the curved plate 2 under the rotation of the spiral roller 35. At the same time, the spiral blades on the spiral roller 35 rotate together with the spiral roller 35. The rotation of the spiral blades stretches the PE film to both sides, thereby avoiding wrinkles in the PE film when it is rolled up. After the PE film passes through the spiral roller 35, the top of the PE film contacts the inclined scraper 36. Under the movement of the PE film, the inclined scraper 36 scrapes off the dust on the top of the PE film. Further, the inclined scraper 36 flattens the PE film that is raised on both sides after being stretched by the spiral roller 35, thereby avoiding wrinkles in the rolling due to the raised sides of the PE film. After the PE film passes through the inclined scraper 36, it contacts the shovel plate 32. The shovel plate 32 shovels up the dust in the middle area of the PE film, and at the same time, flattens the bulge in the middle area of the PE film when it is stretched, thereby avoiding wrinkles in the PE film when it is rolled up.

By setting up the spiral roller 35, the PE film is guided to pass through the display board 3 and then through the support frame 31, thereby improving the work efficiency of transporting PE. At the same time, when the spiral blades on the surface of the spiral roller 35 rotate, the PE film is slightly stretched to the side away from each other, thereby adjusting the surface tension of the PE film, and with the cooperation of the inclined scraper 36 and the shovel plate 32, the warping generated after stretching is scraped off, thereby avoiding the warped PE film from being rolled up and affecting the rolling effect, thereby improving the efficiency of PE film rolling and reducing the cost of PE film rolling.

By setting the arc plate 2 and the cleaning roller 23, the driven gear 24 rotates and revolves under the cooperation of the driving gear 25 and the meshing ring 29. The revolution of the driven gear 24 makes the support rod 22 rotate continuously in the arc plate 2. The rotation of the driven gear 24 makes the cleaning roller 23 rotate continuously while the support rod 22 revolves. When the cleaning roller 23 rotates, it will clean the surface of the PE film through the gap between the arc plates 2 to prevent the dust on the surface of the PE film from being rolled into the winding machine. After winding, the continuous accumulation of dust will cause wrinkles on the surface of the PE film, resulting in damage to the PE film due to tightening after winding, affecting the use effect of the PE film, improving the yield rate of the PE film when winding, and reducing the increased cost of PE film damage caused by dust accumulation when winding the PE film.

Embodiment 3

The positioning assembly includes a disc 52 fixedly connected to the containing box 1 , a rotating column 53 is rotatably connected to the top of the disc 52 , a connecting frame 54 is rotatably connected to the rotating column 53 , and a first limiting strip 55 is fixedly connected to the top of the rotating column 53 .

The positioning assembly also includes a rotating ring 5 rotatably connected to the bottom inner side of the containing box 1, the rotating ring 5 is rotatably connected to the disc 52, the top of the rotating ring 5 is fixedly connected to a limiting column 51, a limiting hole 56 is provided on the top of the limiting column 51, and a first limiting strip 55 is fixedly connected to the outer side of the rotating column 53.

The limiting assembly includes a connecting column 63 meshingly connected to the limiting column 51, the connecting column 63 passes through the top of the accommodating box 1, the top of the connecting column 63 is fixedly connected to the limiting disk 6, the top of the limiting disk 6 is fixedly connected to a plurality of first limiting blocks 61, the outer top of the accommodating box 1 is provided with a limiting slot adapted to the first limiting block 61, the connecting column 63 is fixedly connected to the first limiting plate 64, the connecting column 63 is fixedly connected to the second limiting plate 65, the connecting column 63 is rotatably connected to the connecting column 63, the first limiting plate 64 is located at the top of the locking ring 69, the second limiting plate 65 is located at the bottom of the locking ring 69, the connecting column 63 is fixedly connected to the limiting ring 62 at the bottom, the outer side of the limiting ring 62 is fixedly connected to a plurality of second limiting strips 66, and the inner side of the limiting ring 62 is provided with a plurality of first limiting grooves 67 adapted to the first limiting strips 55.

Please refer to Figures 6 to 9. When the flattening assembly needs to be adjusted, the limit plate 6 is pulled upward. Under the limitation of the first limit plate 64 and the second limit plate 65, the limit plate 6 moves upward so that the latch ring 69 is assembled with the fixing ring 68, and the limit plate 6 cannot continue to move upward. At this time, the first limit groove 67 on the inner wall of the limit ring 62 and the first limit bar 55 are disassembled, and the second limit bar 66 is assembled with the limit column 51. The limit plate 6 is rotated to rotate the rotating ring 5 to adjust the position of the support frame 31.

After the adjustment of the flattening assembly is completed, the limit plate 6 is pressed downward, so that the second limit bar 66 is separated from the limit column 51, and the first limit groove 67 is assembled with the first limit bar 55. At the same time, the latch ring 69 moves away from the fixed ring 68 and is assembled with the limit hole 56 on the limit column 51, so that the limit column 51 and the rotating ring 5 are limited.

At this time, the limit plate 6 is rotated. Under the limitation of the first limit groove 67 and the first limit strip 55, the rotating column 53 rotates, driving the connecting frame 54 to slide in the sliding frame 27. The sliding of the connecting frame 54 causes the air pressure in the fixed plate 26 to change. To ensure that the air pressure in the fixed plate 26 is constant, the rotating roller 28 will slide in the fixed plate 26. When the rotating roller 28 slides to a suitable position, it continues to press the limit plate 6, so that the first limit block 61 is assembled with the containing box 1, and the containing box 1 limits the limit plate 6.

By setting the limit plate 6 and the rotating column 53, the limit plate 6 is rotated to drive the rotating column 53 to rotate, thereby moving the connecting frame 54 and the sliding frame 27, and using air pressure to make the rotating roller 28 move up and down, thereby changing the gap between the arc plate 2 and the rotating roller 28, changing the pressure of the arc plate 2 and the rotating roller 28 on the PE film, and cleaning the dust on the surface of the PE film, avoiding the PE film from warping up during the cleaning process and causing incomplete cleaning, thereby improving the cleaning efficiency of the cleaning roller 23.

The tension adjustment method of the PE film winder with adjustable tension is as follows: pull the limit plate 6 upwards, disengage the first limit groove 67 from the first limit strip 55, and assemble the second limit strip 66 from the limit column 51, rotate the limit plate 6 to rotate the rotating ring 5 and the flattening assembly to a suitable position, press the limit plate 6 downwards, disengage the latch ring 69 from the fixed ring 68 and insert it into the limit hole 56, and at the same time disengage the second limit strip 66 from the limit column 51, and assemble the first limit groove 67 from the first limit strip 55, rotate the limit plate 6 to change the height of the rotating roller 28 in the rolling assembly, connect the rolling assembly, the flattening assembly and the winding roller 4 to the external rotating device, start the external rotating device, unfold the processed PE film, and insert the arc plate 2 and the rotating roller 4. The PE film is flattened between the rollers 28, and passes through the rolling assembly. Under the action of the rolling assembly, the PE film is clamped and under the operation of the rolling assembly, the cleaning assembly contacts the surface of the PE film to remove dust on the surface of the PE film. The PE film then passes through the rolling assembly and is received by the exhibition board 3. Under the rotation of the spiral roller 35, it passes through the flattening assembly. In the process of passing through the flattening assembly, the spiral roller 35 stretches the PE film to both sides, and then the inclined scraper 36 flattens the wrinkles on the surface of the PE film during stretching, and at the same time scrapes off the dust remaining on the surface. The PE film after the dust is scraped off passes through the flattening assembly, and the winding roller 4 receives the PE film that passes through the flattening assembly and winds up the PE film. After winding up, the winding roller 4 is taken out of the storage box 1 for storage.

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

Claims (9)

1. A tension-adjustable PE film winder, comprising a containing box (1), characterized in that a rolling assembly, a cleaning assembly, a winding roller (4), a flattening assembly, a positioning assembly, and a limiting assembly are arranged inside the containing box (1); The rolling assembly is used to flatten the PE film; The cleaning component is arranged inside the rolling component, and the cleaning component is used to clean the surface of the flattened PE film; The flattening component is used to flatten the cleaned component; The winding roller (4) is used for winding the PE film; The positioning assembly is used to adjust the relative positions of the rolling assembly and the cleaning assembly; The limiting component is used for limiting the positioning component. 2. A PE film winder with adjustable tension according to claim 1, characterized in that: the rolling assembly includes a rotating rod (21) rotatably connected to the containing box (1), the rotating rod (21) is fixedly connected to a plurality of arc plates (2), and the plurality of arc plates (2) are arranged along the circumference of the rotating rod (21), and a fixing ring (68) is fixedly connected to the top of the inner side of the containing box (1). 3. A PE film winder with adjustable tension according to claim 1, characterized in that: the flattening component includes a support frame (31) slidably connected to the containing box (1), the support frame (31) is fixedly connected to a display board (3), the support frame (31) is fixedly connected to a side of the display board (3) with an inclined plate (32), the inclined plate (32) is used to shovel dust on the surface of the PE film at the top of the display board (3), the top of the support frame (31) is fixedly connected to a positioning rod (33), the support frame (31) is fixedly connected to a side of the display board (3) with a fixed plate (34), the end of the fixed plate (34) is rotatably connected to a spiral roller (35), and the fixed plate (34) is fixedly connected to a side of the display board (3) with an inclined scraper (36). 4. A PE film winder with adjustable tension according to claim 2, characterized in that: the positioning assembly includes a disc (52) fixedly connected to the containing box (1), the top of the disc (52) is rotatably connected to a rotating column (53), the rotating column (53) is rotatably connected to a connecting frame (54), and the top of the rotating column (53) is fixedly connected to a first limit strip (55). 5. A PE film winding machine with adjustable tension according to claim 2, characterized in that: a support rod (22) corresponding to the arc-shaped plate (2) is rotatably connected to the rotating rod (21), a cleaning roller (23) is fixedly connected to the support rod (22), a driving gear (25) is fixedly connected to the outside of the rotating rod (21), a driven gear (24) meshing with the driving gear (25) is fixedly connected to the outside of the support rod (22), a side of the driven gear (24) away from the driving gear (25) is meshed with the same meshing ring (29), a rotating roller (28) is arranged below the arc-shaped plate (2), fixed plates (26) are slidably connected to both sides of the rotating roller (28), the fixed plate (26) is fixedly connected to the containing box (1), and a sliding frame (27) for changing the position of the rotating roller (28) is fixedly connected to one side of the fixed plate (26). 6. A PE film winder with adjustable tension according to claim 2, characterized in that: the cleaning component includes a support rod (22) rotatably connected to both sides of the rotating rod (21), the support rod (22) is located inside a plurality of the arc-shaped plates (2), a cleaning roller (23) is rotatably connected to the support rod (22), the cleaning roller (23) can contact the PE film through the gap between two adjacent arc-shaped plates (2), and a plurality of the arc-shaped plates (2) are assembled to the rotating rod (21) to form a circular shape. 7. A PE film winder with adjustable tension according to claim 4, characterized in that: the positioning assembly also includes a rotating ring (5) rotatably connected to the bottom inner side of the containing box (1), the rotating ring (5) is rotatably connected to the disc (52), the top of the rotating ring (5) is fixedly connected to a limiting column (51), a limiting hole (56) is provided at the top of the limiting column (51), and a first limiting strip (55) is fixedly connected to the outer side of the rotating column (53). 8. A PE film winder with adjustable tension according to claim 7, characterized in that: the limiting assembly includes a connecting post (63) meshedly connected to the limiting post (51), the connecting post (63) passes through the top of the containing box (1), the top of the connecting post (63) is fixedly connected to a limiting disk (6), the top of the limiting disk (6) is fixedly connected to a plurality of first limiting blocks (61), the top of the outer side of the containing box (1) is provided with a limiting slot adapted to the first limiting block (61), the connecting post (63) is fixedly connected to a first limiting plate (64 ), a second limiting plate (65) is fixedly connected to the connecting column (63), a latch ring (69) is rotatably connected to the connecting column (63), the first limiting plate (64) is located at the top of the latch ring (69), the second limiting plate (65) is located at the bottom of the latch ring (69), the bottom of the connecting column (63) is fixedly connected to a limiting ring (62), a plurality of second limiting strips (66) are fixedly connected to the outer side of the limiting ring (62), and a plurality of first limiting grooves (67) adapted to the first limiting strips (55) are provided on the inner side of the limiting ring (62). 9. A tension adjustment method for a PE film winder with adjustable tension, achieved by the PE film winder with adjustable tension according to any one of claims 1 to 8, characterized in that the steps include: S1. Rotate the limit assembly, adjust the rolling assembly, rotate the positioning assembly, adjust the distance between the rolling assembly and the flattening assembly, and connect the rolling assembly, the flattening assembly and the winding roller to the external rotating equipment; S2, start the external rotating device, unfold the processed PE film, and insert the rolling assembly. The PE film passes through the rolling assembly. Under the action of the rolling assembly, the PE film is clamped and under the operation of the rolling assembly, the cleaning assembly contacts the surface of the PE film to remove dust on the surface of the PE film, and then the pressed PE film passes through the rolling assembly; S3, the PE film passes through the rolling component, is received by the flattening component, and passes through the flattening component. In the process of passing through the flattening component, the flattening component stretches the PE film to both sides, then flattens the wrinkles on the surface of the PE film during stretching, and scrapes off the dust remaining on the surface. The PE film after the dust is scraped off passes through the flattening component; S4, the winding roller receives the PE film passing through the flattening component and rewinds the PE film. After the rewinding is completed, the winding roller is taken out of the storage box for storage.