Winding and cooling equipment and PTFE (Polytetrafluoroethylene) film transverse stretching equipment thereof

Abstract

The utility model relates to the technical field of PTFE (Polytetrafluoroethylene) film treatment, and discloses winding and cooling equipment and PTFE film transverse stretching equipment thereof, which comprise a first fixed bottom plate, a second fixed bottom plate, a third fixed bottom plate and a fourth fixed bottom plate, the cooling structure comprises a first cooling part and a second cooling part, the first cooling part comprises a winding sleeve arranged outside the first fixed bottom plate, a first heat dissipation groove is formed in the winding sleeve, a third limiting plate is fixedly mounted in the first heat dissipation groove, and a first limiting plate is fixedly mounted in the third limiting plate; five groups of holes are formed in the first limiting plate, first fixing sleeves are fixedly mounted in the holes, and first electric fans are spirally mounted in the first fixing sleeves, so that the purpose of cooling the film is achieved, the film is cooled twice, the cooling efficiency of the device on the film is improved, the use flexibility of the device is improved, and the production efficiency of the film is improved; and a worker can conveniently take the film.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the PTFE film processing technical field, specifically relates to a kind of winding cooling equipment and its PTFE film transverse stretching equipment. BACKGROUND

[0002] PTFE film is a kind of microporous film made of polytetrafluoroethylene as raw material by special process such as calendering, extrusion, biaxial stretching etc. PTFE film production process is complex, including mixing, aging, preforming, paste extrusion, calendering, degreasing, longitudinal stretching, transverse stretching, sintering, winding and other steps.

[0003] The utility model of a kind of PTFE film edge cutting device is disclosed in the utility model No. CN217534911U, including rack and slitting part, winding part and edge cutting part installed from top to bottom on the rack;The beneficial effects of the utility model are: by installing edge cutting device after transverse stretching equipment, the edge band of PTFE film can be removed in the production process;Removing edge band can avoid the risk of edge collapse, and can make the film roll become flat and compact, so that it can be directly slitting, saves the process of reversing roll, saves time and manpower and material resources, improves factory operation efficiency;Secondly, the PTFE film edge cutting device of the utility model can meet the edge cutting needs of different width of film by moving the position of tool holder on moving guide rail;The edge band cut is wound by the edge cutting machine placed on both sides through the guide ring below winding roller, which does not hinder the normal production of PTFE film.

[0004] But the above patent still has the following problems: after transverse stretching heating and sintering heating link, the temperature of PTFE film is often high. After stretching and winding, the temperature of high-temperature PTFE film cannot be quickly reduced, which not only causes adverse effects on subsequent processing and use, such as possible deformation of film material, size stability decline, etc., but also may affect the overall production efficiency of PTFE film, workers exist safety hazard when taking, and the device is inconvenient to use.

[0005] Therefore, the utility model is proposed. UTILITY MODEL CONTENT

[0006] To solve the technical problem of low cooling efficiency during winding, the basic idea of the technical scheme of the utility model is:

[0007] A winding cooling equipment, comprising:

[0008] The first fixed bottom plate is rectangular;

[0009] The cooling structure comprises a first cooling part and a second cooling part, the first cooling part comprises a winding sleeve arranged outside a first fixed bottom plate, a first heat dissipation groove is formed in the inside of the winding sleeve, a third limiting plate is fixedly arranged in the inside of the first heat dissipation groove, a first limiting plate is fixedly arranged in the inside of the third limiting plate, five groups of holes are formed in the inside of the first limiting plate, a first fixed sleeve is fixedly arranged in the holes, and a first electric fan is spirally arranged in the inside of the first fixed sleeve; the second cooling part comprises two groups of fourth fixed bottom plates arranged outside the first fixed bottom plate, a wind box is fixedly arranged on the top of the fourth fixed bottom plates, a second electric control box is arranged on the outer wall of one side of the wind box, two groups of second electric fans are rotatably arranged in the inside of the wind box, and the second electric control box is electrically connected with the second electric fans.

[0010] As a preferred embodiment of the utility model, the first cooling part further comprises a second fixed bottom plate arranged outside the first fixed bottom plate, a first electric control box is fixedly arranged on the top of the second fixed bottom plate, and the first electric control box is electrically connected with the four groups of first electric fans.

[0011] As a preferred embodiment of the utility model, the top of the first fixed bottom plate is fixedly arranged with a group of first fixed plates, a first servo motor is fixedly arranged on the outer wall of one side of the first fixed plates, the top of the second fixed bottom plate is fixedly arranged with another group of first fixed plates, a first rotating shaft is arranged between the two groups of first fixed plates, the outer wall of the first rotating shaft is fixedly connected with the inner wall of the winding sleeve, and the output end of the first servo motor is fixedly connected with one end of the first fixed plate through a shaft coupling.

[0012] As a preferred embodiment of the utility model, the inside of the winding sleeve is formed with a second heat dissipation groove, a second limiting plate and a first guide rod are fixedly arranged in the inside of the second heat dissipation groove, one end of the first guide rod is fixedly connected with the outer wall of one side of the second limiting plate, a sliding block is arranged in the inside of the second heat dissipation groove, a limiting hole is formed in the inside of the sliding block, the first guide rod is arranged in the inside of the limiting hole, a first limiting groove is formed in the inside of the sliding block, a movable block is slidably arranged in the inside of the first limiting groove, a pressing plate is fixedly arranged on the top of the movable block, two groups of damping spring rods are fixedly arranged on the bottom of the movable block, and one end of the damping spring rods is fixedly connected with the inner bottom of the first limiting groove.

[0013] As a preferred embodiment of the utility model, the outside of the first fixed bottom plate of the first fixed bottom plate is arranged with two groups of third fixed bottom plates, a third fixed plate is fixedly arranged on the top of the third fixed bottom plates, a second rotating shaft is rotatably arranged between the two groups of third fixed bottom plates, a second servo motor is fixedly arranged on the top of one group of third fixed bottom plates, the output shaft of the second servo motor is fixedly connected with one end of the second rotating shaft through a shaft coupling, and a stirring sleeve is fixedly arranged on the outer wall of the second rotating shaft.

[0014] As a preferred embodiment of the utility model, the fourth fixed bottom plate is fixedly installed with a bearing seat on one side outer wall, and the third rotating shaft is rotatably installed between the two bearing seats.

[0015] A PTFE film transverse stretching equipment, including the winding cooling equipment and the support table of any one of the above, the first fixed bottom plate is fixedly installed on the top of the support table, the top of the support table is fixedly connected with the bottom of the second fixed bottom plate, the third fixed bottom plate and the fourth fixed bottom plate, and the top of the support table is provided with a film, and the outer wall of the film is tightly attached to the outer wall of the third rotating shaft, the material pushing sleeve and the winding sleeve.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. The purpose of cooling the film is achieved, the film is cooled twice, the cooling efficiency of the device for the film is improved, the flexibility of the device is improved, the production efficiency of the film is improved, and the film is convenient for workers to take.

[0018] 2. The purpose of auxiliary winding of the film is achieved, the position of the winding rod of the device is changed according to the width of the film, one end of the film is clamped and fixed, the winding effect of the film is improved, and the stability of the device is improved.

[0019] 3. The purpose of supporting and fixing the device is achieved, the safety of the device is improved, the efficiency of the film winding is improved, and the use experience of the device is optimized.

[0020] The specific embodiments of the utility model will be described in further detail below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0021] In the drawings:

[0022] Figure 1 It is the winding schematic view of the utility model;

[0023] Figure 2 It is the structure schematic view of the utility model;

[0024] Figure 3 It is the winding sleeve structure schematic view of the utility model;

[0025] Figure 4 It is the sliding block structure schematic view of the utility model;

[0026] Figure 5 It is the sliding block and movable block split schematic view of the utility model;

[0027] Figure 6 It is the first limit plate structure schematic view of the utility model;

[0028] Figure 7The first heat dissipation groove structure schematic view of the utility model.

[0029] In the drawing: 10, first fixed bottom plate; 11, first fixed plate; 12, first servo motor; 13, second fixed bottom plate; 14, first rotating shaft; 15, first electric control box; 16, winding sleeve; 17, first limit plate; 18, first fixed sleeve; 19, first electric fan; 20, first heat dissipation groove; 21, second heat dissipation groove; 22, second limit plate; 23, first guide rod; 24, sliding block; 25, limit hole; 26, first limit groove; 27, movable block; 28, pressing plate; 29, damping spring rod; 30, third fixed bottom plate; 31, third fixed plate; 32, second servo motor; 33, second rotating shaft; 34, stirring sleeve; 35, fourth fixed bottom plate; 36, third rotating shaft; 37, air bellow; 38, second electric control box; 39, second electric fan; 40, supporting table; 41, film; 42, third limit plate. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model more clear, the technical scheme in the embodiments will be clearly and completely described below in combination with the drawings in the embodiments of the utility model, and the following embodiments are used to illustrate the utility model.

[0031] Embodiment one: a kind of winding cooling equipment and PTFE film transverse stretching equipment thereof, specifically as Figure 1 、 Figure 2 、 Figure 3 、 Figure 6 and Figure 7As shown, it comprises a first fixed bottom plate 10, which is rectangular; a cooling structure, which comprises a first cooling part and a second cooling part, the first cooling part comprises a winding sleeve 16 arranged outside the first fixed bottom plate 10, the inside of the winding sleeve 16 is provided with a first heat dissipation groove 20, the inside of the first heat dissipation groove 20 is fixedly installed with a third limiting plate 42, the inside of the third limiting plate 42 is fixedly installed with a first limiting plate 17, the inside of the first limiting plate 17 is provided with five groups of holes, the holes are fixedly installed with a first fixed sleeve 18, the inside of the first fixed sleeve 18 is spirally installed with a first electric fan 19; the second cooling part comprises two groups of fourth fixed bottom plates 35 arranged outside the first fixed bottom plate 10, the top of the fourth fixed bottom plate 35 is fixedly installed with a wind box 37, the outer wall of one side of the wind box 37 is provided with a second electric control box 38, the inside of the wind box 37 is rotatably installed with two groups of second electric fans 39, the second electric control box 38 is electrically connected with the second electric fan 39. The cooling structure cools the film during the winding process, the first heat dissipation groove 20 guides the heat generated by the film, the first electric fan 19 is started, the heat flow is output from the inside of the first fixed sleeve 18 to the outside of the winding sleeve 16 through the first heat dissipation groove 20, the second electric control box 38 is started, and the second electric fan 39 is driven to rotate, and the upper surface of the film is blown and cooled.

[0032] Specifically as shown in Figure 1 , Figure 2 and Figure 3 , the first cooling part further comprises a second fixed bottom plate 13 arranged outside the first fixed bottom plate 10, the top of the second fixed bottom plate 13 is fixedly installed with a first electric control box 15, and the first electric control box 15 is electrically connected with four groups of first electric fans 19. The first electric control box 15 controls the rotation of the first electric fan 19.

[0033] According to the above, through the structure of the first fixed bottom plate 10, the first electric control box 15, the winding sleeve 16, the first limiting plate 17, the first fixed sleeve 18, the first electric fan 19, the first heat dissipation groove 20, the fourth fixed bottom plate 35, the wind box 37, the second electric control box 38 and the second electric fan 39, the purpose of cooling the film is achieved, the film is cooled twice, the cooling efficiency of the device for the film is improved, the flexibility of the device is improved, the production efficiency of the film is improved, and the workers are convenient for taking the film.

[0034] Example two: based on example one, specifically as shown in Figure 2 , Figure 3 , Figure 4 and Figure 5As shown in the first fixed bottom plate 10, a group of first fixed plate 11 is fixedly installed on the top of the first fixed plate 10, and a first servo motor 12 is fixedly installed on one side of the outer wall of the first fixed plate 11. Another group of first fixed plate 11 is fixedly installed on the top of the second fixed bottom plate 13, and a first rotating shaft 14 is arranged between the two groups of first fixed plate 11. The outer wall of the first rotating shaft 14 is fixedly connected with the inner wall of the winding sleeve 16, and the output end of the first servo motor 12 is fixedly connected with one end of the first fixed plate 11 through the shaft coupling. The first fixed plate 11 is fixed by the first fixed bottom plate 10 and the second fixed bottom plate 13, the first servo motor 12 is started, the first rotating shaft 14 is rotated, and the winding sleeve 16 is rotated to wind the film.

[0035] Specifically as Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, the inside of the winding sleeve 16 is provided with a second heat dissipation groove 21, and a second limiting plate 22 and a first guide rod 23 are fixedly installed in the second heat dissipation groove 21. One end of the first guide rod 23 is fixedly connected with one side of the outer wall of the second limiting plate 22. The inside of the second heat dissipation groove 21 is provided with a sliding block 24, and a limiting hole 25 is formed in the inside of the sliding block 24. The first guide rod 23 is arranged in the limiting hole 25. A first limiting groove 26 is formed in the inside of the sliding block 24, and a movable block 27 is slidably installed in the first limiting groove 26. The top of the movable block 27 is fixedly installed with a pressing plate 28, and the bottom of the movable block 27 is fixedly installed with two groups of damping spring rods 29. One end of the damping spring rod 29 is fixedly connected with the inside bottom of the first limiting groove 26. Push the sliding block 24, drive the sliding block 24 to slide in the inside of the second heat dissipation groove 21, pull the pressing plate 28 to move upward, loosen the pressing plate 28, drive the movable block 27 to slide in the inside of the first limiting groove 26 through the damping spring rod 29, place one side of the film under the pressing plate 28, and clamp the film between the winding sleeve 16 and the pressing plate 28,

[0036] Specifically as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown in the first fixed bottom plate 10, a group of third fixed plate 30 is arranged on the outside of the first fixed bottom plate 10, and a third fixed plate 31 is fixedly installed on the top of the third fixed plate 30. A second rotating shaft 33 is rotatably installed between the two groups of third fixed plate 31. A second servo motor 32 is fixedly installed on the top of one group of third fixed plate 30, and the output shaft of the second servo motor 32 is fixedly connected with one end of the second rotating shaft 33 through the shaft coupling. A material stirring sleeve 34 is fixedly installed on the outer wall of the second rotating shaft 33. Start the second servo motor 32, drive the second rotating shaft 33 to rotate, and drive the material stirring sleeve 34 to move the film.

[0037] Specifically asFigure 1 And Figure 2 As shown in the fourth fixed bottom plate 35, one side of the outer wall is fixedly installed with a bearing seat, and the third rotating shaft 36 is rotatably installed between the two groups of bearing seats. When the film is rolled up, the third rotating shaft 36 is driven to rotate between the two groups of fourth fixed bottom plates 35.

[0038] According to the above, through the structure of the first fixed bottom plate 10, the first fixed plate 11, the first servo motor 12, the second fixed bottom plate 13, the first rotating shaft 14, the second heat dissipation groove 21, the second limiting plate 22, the first guide rod 23, the sliding block 24, the limiting hole 25, the first limiting groove 26, the movable block 27, the pressing plate 28, the damping spring rod 29, the third fixed bottom plate 30, the third fixed plate 31, the second servo motor 32, the second rotating shaft 33, the stirring sleeve 34, the fourth fixed bottom plate 35 and the third rotating shaft 36, the purpose of assisting the film to be rolled up is achieved. According to the width of the film, the position of the device winding rod is changed, one end of the film is clamped and fixed, the film winding effect is improved, and the stability of the device is improved.

[0039] Example three: based on example one and example two, specifically as shown in Figure 1 And Figure 2 A PTFE film transverse stretching equipment, including any one of the above-mentioned winding cooling equipment and support table 40, the first fixed bottom plate 10 is fixedly installed on the top of the support table 40, the top of the support table 40 is fixedly connected with the bottom of the second fixed bottom plate 13, the third fixed bottom plate 30 and the fourth fixed bottom plate 35, the top of the support table 40 is provided with a film 41, the outer wall of the film 41 is in close contact with the outer wall of the third rotating shaft 36, the stirring sleeve 34 and the winding sleeve 16. The device is placed on the support table 40, and the film 41 is wound by the device.

[0040] As described above, through the structure of the support table 40 and the film 41, the purpose of supporting and fixing the device is achieved, the safety of the device is improved, the efficiency of the film winding is improved, and the use experience of the device is optimized.

[0041] Working principle: a winding cooling equipment and its PTFE film transverse stretching equipment, mainly including winding cooling part and support structure. When working, the PTFE film is first processed by the transverse stretching equipment, and then enters the winding cooling equipment, and in the winding cooling part, the film is first guided to the winding sleeve 16. The winding sleeve 16 is internally designed with the first heat dissipation groove 20 and the second heat dissipation groove 21 for effective heat dissipation. The first heat dissipation groove 20 is provided with the first electric fan 19, which is controlled to rotate by the first electric control box 15, so that the heat generated by the film is discharged to the outside of the winding sleeve 16 through the hole and the first fixed sleeve 18. At the same time, the second cooling part includes the air bellow 37 and the second electric fan 39, which is controlled to rotate by the second electric control box 38, and the upper surface of the film is blown and cooled, further enhancing the heat dissipation effect. During winding, the film is clamped between the winding sleeve 16 and the movable pressing plate 28. The pressing plate 28 is fixed and adjusted by the mechanism composed of the sliding block 24, the movable block 27 and the damping spring rod 29, so as to ensure that the film remains stable during winding. The rotation of the winding sleeve 16 is driven by the first servo motor 12 through the first rotating shaft 14, so as to realize automatic winding of the film. The equipment is also provided with an auxiliary moving mechanism, including the material shifting sleeve 34 driven by the second servo motor 32, which rotates through the second rotating shaft 33 to assist the movement of the film, so as to ensure that the film can smoothly enter the winding area before winding. The whole equipment is installed on the support table 40, which not only provides stable support, but also connects each part of the winding cooling equipment through the top structure. When winding, the third rotating shaft 36 is further rotated between the fourth fixed bottom plate 35 to ensure smooth winding of the film.

[0042] It can be understood that the utility model is described through some embodiments, and those skilled in the art know that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model. In addition, under the guidance of the utility model, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the scope protected by the utility model.

Claims

1. A reel cooling apparatus, characterized by, The utility model relates to a cooling structure of a first fixed bottom plate (10) and a second fixed bottom plate (13) are arranged outside the first fixed bottom plate (10), the first fixed bottom plate (10) is rectangular, the first fixed bottom plate (10) is provided with a first fixed sleeve (18) and a first electric fan (19), the second fixed bottom plate (13) is provided with a first electric control box (15) and a second electric fan (39), the first fixed sleeve (18) is provided with a first cooling groove (20), the first electric fan (19) is arranged in the first cooling groove (20), the first electric control box (15) is electrically connected with the second electric fan (39), the first electric fan (19) is electrically connected with the first electric control box (15), the first fixed sleeve (18) is provided with a third limiting plate (42), the third limiting plate (42) is provided with a first limiting plate (17), the first limiting plate (17) is provided with five groups of holes, the first electric fan (19) is arranged in the first limiting plate (17), the first electric control box (15) is electrically connected with four groups of first electric fans (19), the first fixed sleeve (18) is provided with a first electric fan (19), the first electric fan (19) is arranged in the first electric control box (15), the first electric control box (15) is electrically connected with the second electric fan (39), the first electric fan (19) is electrically connected with the first electric control box (15), the first fixed sleeve (18) is provided with a third limiting plate (42), the third limiting plate (42) is provided with a first limiting plate (17), the first limiting plate (17) is provided with five groups of holes, the first electric fan (19) is arranged in the first limiting plate (17), the first electric control box (15) is electrically connected with four groups of first electric fans (19), the first electric fan (19) is arranged in the first electric control box (15), the first electric control box (15) is electrically connected with the second electric fan (39), the first electric fan (19) is electrically connected with the first electric control box (15), the first fixed sleeve (18) is provided with a third limiting plate (42), the third limiting plate (42) is provided with a first limiting plate (17), the first limiting plate (17) is provided with five groups of holes, the first electric fan (19) is arranged in the first limiting plate (17), the first electric control box (15) is electrically connected with four groups of first electric fans (19), the first electric fan (19) is arranged in the first electric control box (15), the first electric control box (15) is electrically connected with the second electric fan (39), the first electric fan (19) is electrically connected with the first electric control box (15), the first fixed sleeve (18) is provided with a third limiting plate (42), the third limiting plate (42) is provided with a first limiting plate (17), the first limiting plate (17) is provided with five groups of holes, the first electric fan (19) is arranged in the first limiting plate (17), the first electric control box (15) is electrically connected with four groups of first electric fans (19), the first electric fan (19) is arranged in the first electric control box (15), the first electric control box (15) is electrically connected with the second electric fan (39), the first electric fan (19) is electrically connected with the first electric control box (15), the first fixed sleeve (18) is provided with a third limiting plate (42), the third limiting plate (42) is provided with a first limiting plate (17), the first limiting plate (17) is provided with five groups of holes, the first electric fan (19) is arranged in the first limiting plate (17), the first electric control box (15) is electrically connected with four groups of first electric fans (19), the first electric fan (19) is arranged in the first electric control box (15), the first electric control box (15) is electrically connected with the second electric fan (39), the first electric fan (19) is electrically connected with the first electric control box (15), the first fixed sleeve (18) is provided with a third limiting plate (42), the third limiting plate (42) is provided with a first limiting plate (17), the first limiting plate (17) is provided with five groups of holes, the first electric fan (19) is arranged in the first limiting plate (17), the first electric control box (15) is electrically connected with four groups of first electric fans (19), the first electric fan (19) is arranged in the first electric control box (15), the first electric control box (15) is electrically connected with the second electric fan (39), the first electric fan (19) is electrically connected with the first electric control box (15), the first fixed sleeve (18) is provided with a third limiting plate (42), the third limiting plate (42) is provided with a first limiting plate (17), the first limiting plate (17) is provided with five groups of holes, the first electric fan (19) is arranged in the first limiting plate (17), the first electric control box (15) is electrically connected with four groups of first electric fans (19), the first electric fan (19) is arranged in the first electric control box (15), the first electric control box (15) is electrically connected with the second electric fan (39), the first electric fan (19) is electrically connected with the first electric control box (15), the first fixed sleeve (18) is provided with a third limiting plate (42), the third limiting plate (42) is provided with a first limiting plate (17), the first limiting plate (17) is provided with five groups of holes, the first electric fan (19) is arranged in the first limiting plate (17), the first electric control box (15) is electrically connected with four groups of first electric fans (19), the first electric fan (19) is arranged in the first electric control box (15), the first electric control box (15) is electrically connected with the second electric fan (39), the first electric fan (19) is electrically connected with the first electric control box (15), the first fixed sleeve (18) is provided with a third limiting plate (42), the third limiting plate (42) is provided with a first limiting plate (17), the first limiting plate (17) is provided with five groups of holes, the first electric fan (19) is arranged in the first limiting plate (17), the first electric control box (15) is electrically connected with four groups of first electric fans (19), ​ ​ 2. The quenching device according to claim 1, characterized in that ​ 3. The quenching device according to claim 1, characterized in that ​ 4. The quenching device according to claim 1, characterized in that ​ 5. The quenching device of claim 1, wherein The outer portion of the first fixed bottom plate (10) is provided with two groups of third fixed bottom plates (30), the top of the third fixed bottom plate (30) is fixedly installed with a third fixed plate (31), the second rotating shaft (33) is rotatably installed between the two groups of third fixed plates (31), the top of one group of third fixed bottom plates (30) is fixedly installed with a second servo motor (32), the output shaft of the second servo motor (32) is fixedly connected with one end of the second rotating shaft (33) through a shaft coupling, and the outer wall of the second rotating shaft (33) is fixedly installed with a stirring sleeve (34).

6. The quenching device of claim 1, wherein The outer wall of one side of the fourth fixed bottom plate (35) is fixedly installed with a bearing seat, and the third rotating shaft (36) is rotatably installed between the two groups of bearing seats.

7. A PTFE membrane transverse stretching apparatus characterized by comprising: The winding cooling equipment and the supporting table (40) are provided, the first fixed bottom plate (10) is fixedly installed on the top of the supporting table (40), the top of the supporting table (40) is fixedly connected with the bottom of the second fixed bottom plate (13), the third fixed bottom plate (30) and the fourth fixed bottom plate (35), the top of the supporting table (40) is provided with a film (41), and the outer wall of the film (41) is in close contact with the outer walls of the third rotating shaft (36), the stirring sleeve (34) and the winding sleeve (16).

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