A polyimide film uniform drying device and its use method

Abstract

The present invention relates to the technical field of polyimide film production, and specifically to a device for uniformly drying polyimide film and a method for using the device, comprising a covering mechanism, a ventilation mechanism, a winding mechanism, a preheating mechanism, and a dust removal mechanism. The covering mechanism is provided with a ventilation mechanism at the lower end, a winding mechanism is provided at one end of the ventilation mechanism, a preheating mechanism is provided at one end of the winding mechanism, and a dust removal mechanism is provided at one end of the preheating mechanism. Hot air can be circulated through an outer shell, and the film can be dried more efficiently by folding the film inside the outer shell, and the space occupied is small, which saves the floor space of the equipment. Small holes are provided inside the arc plate, and the hot air inside the arc plate will be discharged through the small holes to pre-dry the film. At the same time, the arc plate can be more closely attached to the film, so that the film drying effect is improved. The sticky dust belt can be used to clean dust on both sides of the film, which improves the quality of the product.

Description

Technical Field

[0001] The invention relates to the technical field of polyimide film production, in particular to a polyimide film uniform drying device and a use method thereof. Background Art

[0002] Polyimide film is a high-performance, high-temperature, high-strength polymer material. Due to its excellent thermal stability, chemical stability, wear resistance, oxidation resistance, radiation resistance, electrical insulation, and high-temperature resistance, it is widely used in electronics, optoelectronics, aerospace, automobiles, medical equipment, textiles, chemicals and other fields. Polyimide film has a low dielectric constant and dielectric loss, so it is widely used in high-frequency and microwave fields. In addition, polyimide film also has excellent barrier properties and can be widely used to block gas, moisture and organic matter. The current drying method mainly uses the fan in the oven and the heating wire to generate hot air, and uses the hot air to dry the polyimide film.

[0003] After the polyimide film is formed, it needs to be dried. The existing drying equipment uses hot air to dry the polyimide film. The drying method is relatively simple. In addition, the existing drying device for polyimide film production has serious problems of heat loss, low energy utilization, and low energy saving. The existing polyimide film will be contaminated with dust during the preparation process. If the contaminated dust cannot be cleaned during the preparation process, it will affect the quality of the polyimide film finished product. In addition, the existing equipment dries the polyimide film unevenly during the drying process, which reduces production efficiency. In addition, the equipment occupies a large area, has high energy consumption, and the corresponding cost is also high. Summary of the Invention

[0004] In view of the problems in the prior art, the present invention provides a polyimide film uniform drying device and a method for using the same.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a polyimide film uniform drying device and a method of using the same, comprising a covering mechanism, a ventilation mechanism, a winding mechanism, a preheating mechanism, and a dust removal mechanism, wherein the covering mechanism is provided with a ventilation mechanism at the lower end, the ventilation mechanism is provided with a winding mechanism at one end, the winding mechanism is provided with a preheating mechanism at one end, and the preheating mechanism is provided with a dust removal mechanism at one end;

[0006] Preferably, the covering mechanism includes a base plate, the upper end of the base plate is fixedly connected to a first support plate, the lower end of the first support plate is fixedly connected to a hydraulic cylinder, the lower end of the hydraulic cylinder is fixedly connected to a cover plate, and the lower end of the cover plate is fixedly connected to a connecting plate.

[0007] Preferably, the covering mechanism also includes a first roller, the lower end side wall of the connecting plate is rotatably connected to the first roller, the upper end of the bottom plate is fixedly connected to the outer shell, the side wall of the outer shell is fixedly connected to the first connecting pipe, and the inner side wall of the outer shell is fixedly connected to the partition.

[0008] Preferably, the ventilation mechanism includes a connecting rod, one end of which is fixedly connected to the hydraulic cylinder, the upper end of the base plate is fixedly connected to a first sleeve, a sliding block is slidably connected inside the first sleeve, the side wall of the sliding block is slidably connected to a second sleeve, the side wall of the sliding block is fixedly connected to a first air intake pipe, and a connecting groove is provided inside the sliding block.

[0009] Preferably, the ventilation mechanism also includes a second air inlet pipe, the second air inlet pipe is fixedly connected to the side wall of the second sleeve, one end of the second air inlet pipe is fixedly connected to the first connecting pipe, the lower end of the sliding block is fixedly connected to a stop block, the lower end of the stop block is fixedly connected to a spring, and one end of the spring is fixedly connected to the first sleeve.

[0010] Preferably, the winding mechanism includes an electric motor, the lower end of the motor is fixedly connected to the base plate, one end of the motor is fixedly connected to a first rotating shaft, the side wall of the first rotating shaft is rotatably connected to a second support plate, one end of the second support plate is fixedly connected to the base plate, one end of the first rotating shaft is fixedly connected to a second roller, and a film is wrapped around the side wall of the second roller.

[0011] Preferably, the winding mechanism further includes a third roller, the side wall of the film is tightly fitted with the third roller, one end of the third roller is rotatably connected to the outer shell, one end of the film is wrapped with a fourth roller, and the side wall of the fourth roller is fixedly connected to a transmission rod.

[0012] Preferably, the preheating mechanism includes a second connecting tube, one end of the second connecting tube is fixedly connected to the first connecting tube, one end of the second connecting tube is fixedly connected to a third support plate, the side wall of the third support plate is rotatably connected to the third connecting tube, the side wall of the third connecting tube is fixedly connected to a torsion spring, and one end of the torsion spring is fixedly connected to the third support plate.

[0013] Preferably, the preheating mechanism also includes an arc-shaped plate, one end of the third connecting tube is fixedly connected to the arc-shaped plate, a small hole is opened on the side wall of the arc-shaped plate, the side wall of the arc-shaped plate is rotatably connected to a first rotating rod, and the side wall of the arc-shaped plate is rotatably connected to a second rotating rod.

[0014] Preferably, the dust removal mechanism includes a transmission roller, the side wall of the transmission roller is tightly fitted with the film, the side wall of the transmission roller is fixedly connected to the second rotating shaft, the side wall of the second rotating shaft is fixedly connected to the first transmission wheel, the side wall of the first transmission wheel is tightly fitted with a belt, one end of the belt is tightly fitted with the second transmission wheel, the inner side wall of the second transmission wheel is fixedly connected to the third rotating shaft, one end of the third rotating shaft is fixedly connected to the first winding roller, the side wall of the first winding roller is wound with a sticky belt, one end of the sticky belt is wound with the second winding roller, and one end of the second winding roller is rotatably connected to the arc plate.

[0015] Preferably, the method specifically includes the following steps:

[0016] S1, first place the film on the upper end of the shell, then start the hydraulic cylinder to move downward, the downward movement of the hydraulic cylinder drives the cover plate to move downward, the downward movement of the cover plate drives the connecting plate to move downward, the downward movement of the connecting plate drives the first roller to move downward, the first roller moves downward to fold the film into a zigzag shape inside the shell, the cover plate is closed on the upper end of the shell, so that the inside of the shell can be in a relatively sealed environment, which is convenient for the subsequent hot air circulation to dry the film, and when the first roller moves downward to fold the film into a zigzag shape inside the shell, the arc plate will also bend appropriately, the bending of the arc plate will drive the third connecting tube to rotate, and the rotation of the third connecting tube will compress the torsion spring.

[0017] S2, during the downward movement of the hydraulic cylinder, it will also drive the connecting rod to move downward, the downward movement of the connecting rod will drive the sliding block to move downward, the downward movement of the sliding block will drive the stop block to move downward, the downward movement of the stop block will compress the spring, and introduce hot air into the first air inlet pipe. During the downward movement of the sliding block, it will drive the connecting groove to correspond to the second air inlet pipe. At this time, the hot air inside the first air inlet pipe will pass through the connecting groove and enter the second air inlet pipe. The hot air inside the second air inlet pipe enters the inside of the outer shell. A plurality of partitions are arranged inside the outer shell, and the plurality of partitions divide the outer shell into a plurality of chambers. The plurality of first connecting pipes arranged outside the outer shell can make the hot air circulate in the chambers inside the outer shell one level at a time, and the hot air can circulate through the arranged outer shell.

[0018] S3, at this time, the motor is started to rotate slowly and uniformly, the rotation of the motor drives the first rotating shaft to rotate, the rotation of the first rotating shaft drives the second roller to rotate, the rotation of the second roller drives the film to rotate, the second roller rotates to rewind the film, and while the second roller rotates to rewind the film, it will drive the fourth roller to rotate to unwind it.

[0019] S4, the hot air inside the first connecting tube will enter the second connecting tube, the hot air inside the second connecting tube will enter the third support plate, the hot air inside the third support plate will enter the third connecting tube, the hot air inside the third connecting tube will enter the curved plate, and the hot air inside the curved plate will be discharged through the small holes to pre-dry the film.

[0020] S5. During the movement of the film, the transmission roller will be driven to rotate, the rotation of the transmission roller will drive the second rotating shaft to rotate, the rotation of the second rotating shaft will drive the first transmission wheel to rotate, the rotation of the first transmission wheel will drive the belt to rotate, the rotation of the belt will drive the second transmission wheel to rotate, the rotation of the second transmission wheel will drive the third rotating shaft to rotate, the rotation of the third rotating shaft will drive the first winding roller to rotate, the rotation of the first winding roller will drive the sticky belt to rewind, the sticky belt and the film run at the same speed, the second winding roller will unwind the sticky belt during the movement of the film, and the rewinding of the sticky belt will remove dust from the surface of the film.

[0021] Beneficial effects of the present invention:

[0022] (1) The present invention discloses a device for uniformly drying a polyimide film and a method for using the same. The device is provided with a plurality of partitions inside a shell, which divide the shell into a plurality of chambers. A plurality of first connecting tubes provided outside the shell can allow hot air to circulate in the chambers inside the shell. The hot air can circulate through the shell. Folding the film inside the shell can dry the film more efficiently and save space. When the first roller moves downward to fold the film into a zigzag shape inside the shell, the arc plate will also bend appropriately. The bending of the arc plate will drive the third connecting tube to rotate. The rotation of the third connecting tube will compress the torsion spring. The appropriate bending of the arc plate can act as a buffer to prevent the film from being broken.

[0023] (2) The present invention discloses a device for uniformly drying a polyimide film and a method for using the same. The device controls the second roller to drive the film to be rolled up slowly and evenly, so that the film can be fully dried. The hot air inside the third connecting tube enters the arc plate, and the hot air inside the arc plate is discharged through the small holes to pre-dry the film. At the same time, the arc plate can fit the film more closely, thereby improving the drying effect of the film.

[0024] (3) The present invention discloses a device for uniformly drying a polyimide film and a method for using the same. The device can clean dust on both sides of the film by means of a sticky belt. The first winding roller rotates to reel in the sticky belt. The sticky belt and the film run at the same speed. The second winding roller unwinds the sticky belt while the film is moving. The rewinding of the sticky belt removes dust from the surface of the film, thereby improving the production quality of the film. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below with reference to the accompanying drawings and examples.

[0026] Figure 1 A schematic diagram of the overall structure provided by the present invention;

[0027] Figure 2 for Figure 1 Schematic diagram of the connection structure between the bottom plate and the first support plate shown;

[0028] Figure 3 for Figure 1 Schematic diagram of the connection structure between the hydraulic cylinder and the cover plate shown;

[0029] Figure 4 for Figure 3 Schematic diagram of the connection structure between the shell and the partition shown;

[0030] Figure 5 for Figure 4 The schematic diagram of the connection structure between the first sleeve and the sliding block shown;

[0031] Figure 6 for Figure 5 Schematic diagram of the connecting groove structure shown;

[0032] Figure 7 for Figure 3 Schematic diagram of the connection structure between the fourth roller and the transmission rod shown;

[0033] Figure 8 for Figure 2 Schematic diagram of the connection structure between the third connecting pipe and the torsion spring shown;

[0034] Figure 9 for Figure 7 Schematic diagram of the curved plate structure shown;

[0035] Figure 10 for Figure 7 The diagram shows the connection structure between the third rotating shaft and the first winding roller.

[0036] In the figure: 1. Closing mechanism; 11. Bottom plate; 12. First support plate; 13. Hydraulic cylinder; 14. Cover plate; 15. Connecting plate; 16. First roller; 17. Housing; 18. First connecting pipe; 19. Partition plate; 2. Ventilation mechanism; 21. Connecting rod; 22. First sleeve; 23. Sliding block; 24. Second sleeve; 25. First air inlet pipe; 26. Connecting groove; 27. Second air inlet pipe; 28. Stopper; 29. ​​Spring; 3. Winding mechanism; 31. Motor; 32. First rotating shaft; 33. Second support plate; 34. Second roller; 35. Film; 36. Third roller; 37. Fourth roller; 38. Drive rod; 4. Preheating mechanism; 41. Second connecting tube; 42. Third supporting plate; 43. Third connecting tube; 44. Arc plate; 45. Small hole; 46. First rotating rod; 47. Second rotating rod; 48. Torsion spring; 5. Dust removal mechanism; 51. Drive roller; 52. Second rotating shaft; 53. First transmission wheel; 54. Belt; 55. Second transmission wheel; 56. Third rotating shaft; 57. First winding roller; 58. Sticky belt; 59. Second winding roller. DETAILED DESCRIPTION

[0037] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0038] like Figures 1-10 As shown, the present invention describes a polyimide film uniform drying device and a method for using the same, comprising a covering mechanism 1, a ventilation mechanism 2, a winding mechanism 3, a preheating mechanism 4, and a dust removal mechanism 5. The covering mechanism 1 has a ventilation mechanism 2 at the lower end, a winding mechanism 3 at one end of the ventilation mechanism 2, a preheating mechanism 4 at one end of the winding mechanism 3, and a dust removal mechanism 5 at one end of the preheating mechanism 4. The shell 17 provided can circulate hot air, and folding the film 35 inside the shell 17 can dry it more efficiently, and the space occupied is small, saving the floor space of the equipment. A small hole 45 is provided inside the arc plate 44, and the hot air inside the arc plate 44 will be discharged through the small hole 45 to pre-dry the film 35. At the same time, the arc plate 44 provided can better fit the film 35, so that the drying effect of the film 35 is improved. The sticky dust belt 58 provided can clean the dust on both sides of the film 35, which improves the quality of the product.

[0039] Preferably, the covering mechanism 1 includes a bottom plate 11, the upper end of the bottom plate 11 is fixedly connected to a first support plate 12, the lower end of the first support plate 12 is fixedly connected to a hydraulic cylinder 13, the lower end of the hydraulic cylinder 13 is fixedly connected to a cover plate 14, the lower end of the cover plate 14 is fixedly connected to a connecting plate 15, the lower end side wall of the connecting plate 15 is rotatably connected to a first roller 16, the upper end of the bottom plate 11 is fixedly connected to a shell 17, the side wall of the shell 17 is fixedly connected to a first connecting pipe 18, and the inner side wall of the shell 17 is fixedly connected to a partition 19; the film is placed on the upper end of the shell 17, and the hydraulic cylinder 13 is started to move downward. The downward movement of the hydraulic cylinder 13 drives the cover plate 14 to move downward, and the cover plate 14 The downward movement drives the connecting plate 15 to move downward, and the downward movement of the connecting plate 15 drives the first roller 16 to move downward. The downward movement of the first roller 16 folds the film 35 into a zigzag shape inside the shell 17. The cover plate 14 covers the upper end of the shell 17 so that the inside of the shell 17 is in a relatively sealed environment, which is convenient for the subsequent hot air circulation to dry the film 35. When the first roller 16 moves downward to fold the film 35 into a zigzag shape inside the shell 17, the arc plate 44 will also bend appropriately. The bending of the arc plate 44 will drive the third connecting tube 43 to rotate. The rotation of the third connecting tube 43 will compress the torsion spring 48. The appropriate bending of the arc plate 44 can play a buffering role to prevent the film from being broken.

[0040] Preferably, the ventilation mechanism 2 includes a connecting rod 21, one end of the connecting rod 21 is fixedly connected to the hydraulic cylinder 13, the upper end of the base plate 11 is fixedly connected to a first sleeve 22, the first sleeve 22 is slidably connected to a sliding block 23 inside, the side wall of the sliding block 23 is slidably connected to a second sleeve 24, the side wall of the sliding block 23 is fixedly connected to a first air intake pipe 25, a connecting groove 26 is provided inside the sliding block 23, the side wall of the second sleeve 24 is fixedly connected to a second air intake pipe 27, one end of the second air intake pipe 27 is fixedly connected to the first connecting pipe 18, the lower end of the sliding block 23 is fixedly connected to a stopper 28, the lower end of the stopper 28 is fixedly connected to a spring 29, and one end of the spring 29 is fixedly connected to the first sleeve 22; when the hydraulic cylinder 13 moves downward, the connecting rod 21 will also be driven downward, and the downward movement of the connecting rod 21 drives the sliding block 23 moves downward, and the downward movement of the sliding block 23 drives the stopper 28 to move downward. The downward movement of the stopper 28 compresses the spring 29, and introduces hot air into the first air inlet pipe 25. In the process of the downward movement of the sliding block 23, the connecting groove 26 is driven to correspond to the second air inlet pipe 27. At this time, the hot air inside the first air inlet pipe 25 will pass through the connecting groove 26 and enter the second air inlet pipe 27. The hot air inside the second air inlet pipe 27 enters the inside of the outer shell 17. A plurality of partitions 19 are provided inside the outer shell 17. The plurality of partitions 19 divide the outer shell 17 into a plurality of chambers. The plurality of first connecting pipes 18 provided outside the outer shell 17 can make the hot air circulate in the chamber inside the outer shell 17 one level at a time. The hot air can be circulated through the provided outer shell 17. Folding the film 35 inside the outer shell 17 can make the drying more efficient, and the space occupied is small, saving the floor space of the equipment.

[0041] Preferably, the winding mechanism 3 includes a motor 31, the lower end of the motor 31 is fixedly connected to the bottom plate 11, one end of the motor 31 is fixedly connected to a first rotating shaft 32, the side wall of the first rotating shaft 32 is rotatably connected to a second support plate 33, one end of the second support plate 33 is fixedly connected to the bottom plate 11, one end of the first rotating shaft 32 is fixedly connected to a second roller 34, a film 35 is wound around the side wall of the second roller 34, a third roller 36 is tightly attached to the side wall of the film 35, one end of the third roller 36 is rotatably connected to the shell 17, and one end of the film 35 is wound around There is a fourth roller 37, and a transmission rod 38 is fixedly connected to the side wall of the fourth roller 37; at this time, the motor 31 is started to rotate slowly and uniformly, and the rotation of the motor 31 drives the first rotating shaft 32 to rotate, and the rotation of the first rotating shaft 32 drives the second roller 34 to rotate, and the rotation of the second roller 34 drives the film 35 to rotate, and the second roller 34 rotates to reel the film 35. When the second roller 34 rotates to reel the film 35, it will drive the fourth roller 37 to rotate to unreel. By controlling the second roller 34 to drive the film 35 to reel slowly and uniformly, the film can be fully dried.

[0042] Preferably, the preheating mechanism 4 includes a second connecting pipe 41, one end of the second connecting pipe 41 is fixedly connected to the first connecting pipe 18, one end of the second connecting pipe 41 is fixedly connected to a third support plate 42, the side wall of the third support plate 42 is rotatably connected to a third connecting pipe 43, the side wall of the third connecting pipe 43 is fixedly connected to a torsion spring 48, one end of the torsion spring 48 is fixedly connected to the third support plate 42, one end of the third connecting pipe 43 is fixedly connected to an arc plate 44, a small hole 45 is opened on the side wall of the arc plate 44, and the side wall of the arc plate 44 is rotatably connected to the third connecting pipe 43. A rotating rod 46, the side wall of the curved plate 44 is rotatably connected to a second rotating rod 47; the hot air inside the first connecting tube 18 will enter the second connecting tube 41, the hot air inside the second connecting tube 41 will enter the third support plate 42, the hot air inside the third support plate 42 will enter the third connecting tube 43, the hot air inside the third connecting tube 43 will enter the curved plate 44, and the hot air inside the curved plate 44 will be discharged through the small hole 45 to pre-dry the film. At the same time, the curved plate 44 can fit the film 35 more closely, thereby improving the drying effect of the film.

[0043] Preferably, the dust removal mechanism 5 includes a transmission roller 51, the side wall of the transmission roller 51 is tightly fitted with the film 35, the side wall of the transmission roller 51 is fixedly connected to the second rotating shaft 52, the side wall of the second rotating shaft 52 is fixedly connected to the first transmission wheel 53, the side wall of the first transmission wheel 53 is tightly fitted with a belt 54, one end of the belt 54 is tightly fitted with the second transmission wheel 55, the inner side wall of the second transmission wheel 55 is fixedly connected to the third rotating shaft 56, one end of the third rotating shaft 56 is fixedly connected to the first winding roller 57, the side wall of the first winding roller 57 is wound with a sticky belt 58, one end of the sticky belt 58 is wound with a second winding roller 59, and one end of the second winding roller 59 is rotatably connected to the arc plate 44; in the process of the film 35 moving, the transmission roller 51 is driven The transmission roller 51 rotates, driving the second rotating shaft 52 to rotate. The second rotating shaft 52 rotates, driving the first transmission wheel 53 to rotate. The first transmission wheel 53 rotates, driving the belt 54 to rotate. The belt 54 rotates, driving the second transmission wheel 55 to rotate. The second transmission wheel 55 rotates, driving the third rotating shaft 56 to rotate. The third rotating shaft 56 rotates, driving the first winding roller 57 to rotate. The first winding roller 57 rotates, driving the sticky belt 58 to reel in. The sticky belt 58 and the film 35 run at the same speed. During the movement of the film 35, the second winding roller 59 will unwind the sticky belt 58. The rewinding of the sticky belt 58 will remove dust on the surface of the film 35, thereby improving the production quality of the film 35. The sticky belt 58 can clean the dust on both sides of the film, thereby improving the quality of the product.

[0044] Working principle: When the present invention is in use, the film is first placed on the upper end of the shell 17, and the hydraulic cylinder 13 is started to move downward. The downward movement of the hydraulic cylinder 13 drives the cover plate 14 to move downward, and the downward movement of the cover plate 14 drives the connecting plate 15 to move downward. The downward movement of the connecting plate 15 drives the first roller 16 to move downward, and the first roller 16 moves downward to fold the film 35 into a zigzag shape inside the shell 17. The cover plate 14 covers the upper end of the shell 17, so that the inside of the shell 17 is in a relatively sealed environment, which is convenient for the subsequent hot air circulation to dry the film 35. When the first roller 16 moves downward to fold the film 35 into a zigzag shape inside the shell 17, the arc plate 44 will also bend appropriately. The bending of the arc plate 44 will drive the third connecting tube 43 to rotate, and the rotation of the third connecting tube 43 will compress the torsion spring 48. The appropriate bending of the arc plate 44 can play a buffering role to prevent the film from being broken.

[0045] As the hydraulic cylinder 13 moves downward, the connecting rod 21 is driven downward, and the downward movement of the connecting rod 21 drives the sliding block 23 to move downward. The downward movement of the sliding block 23 drives the stopper 28 to move downward. The downward movement of the stopper 28 compresses the spring 29, and the hot air is passed into the first air inlet pipe 25. As the sliding block 23 moves downward, the connecting groove 26 is driven to correspond to the second air inlet pipe 27. At this time, the hot air inside the first air inlet pipe 25 will pass through the connecting groove 26 and enter the second air inlet pipe 27. The hot air inside the second air inlet pipe 27 enters the interior of the shell 17. A plurality of partitions 19 are provided inside the shell 17. The plurality of partitions 19 divide the shell 17 into a plurality of chambers. The plurality of first connecting pipes 18 provided outside the shell 17 can make the hot air circulate in the chambers inside the shell 17 one level at a time. The hot air can be circulated through the provided shell 17, and the film 35 can be folded inside the shell 17 to dry more efficiently, and the space occupied is small, saving the floor space of the equipment.

[0046] At this time, the motor 31 is started to rotate slowly and uniformly. The rotation of the motor 31 drives the first rotating shaft 32 to rotate. The rotation of the first rotating shaft 32 drives the second roller 34 to rotate. The rotation of the second roller 34 drives the film 35 to rotate. The second roller 34 rotates to reel the film 35. While the second roller 34 rotates to reel the film 35, it also drives the fourth roller 37 to rotate to unreel. By controlling the second roller 34 to drive the film 35 to reel slowly and uniformly, the film can be fully dried.

[0047] The hot air inside the first connecting tube 18 will enter the second connecting tube 41, the hot air inside the second connecting tube 41 will enter the third support plate 42, the hot air inside the third support plate 42 will enter the third connecting tube 43, the hot air inside the third connecting tube 43 will enter the curved plate 44, and the hot air inside the curved plate 44 will be discharged through the small holes 45 to pre-dry the film. At the same time, the curved plate 44 can fit the film 35 more closely, thereby improving the drying effect of the film.

[0048] During the movement of the film 35, the transmission roller 51 is driven to rotate, and the rotation of the transmission roller 51 drives the second rotating shaft 52 to rotate. The rotation of the second rotating shaft 52 drives the first transmission wheel 53 to rotate. The rotation of the first transmission wheel 53 drives the belt 54 to rotate. The rotation of the belt 54 drives the second transmission wheel 55 to rotate. The rotation of the second transmission wheel 55 drives the third rotating shaft 56 to rotate. The rotation of the third rotating shaft 56 drives the first winding roller 57 to rotate. The rotation of the first winding roller 57 drives the sticky belt 58 to reel in. The sticky belt 58 and the film 35 run at the same speed. During the movement of the film 35, the second winding roller 59 unwinds the sticky belt 58. The rewinding of the sticky belt 58 removes dust from the surface of the film 35, thereby improving the production quality of the film 35. The sticky belt 58 can clean dust on both sides of the film, thereby improving the quality of the product.

[0049] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A polyimide film uniform drying device, characterized by: The invention comprises a covering mechanism (1), a ventilation mechanism (2), a reeling mechanism (3), a preheating mechanism (4), and a dust removal mechanism (5); the lower end of the covering mechanism (1) is provided with a ventilation mechanism (2); one end of the ventilation mechanism (2) is provided with a reeling mechanism (3); one end of the reeling mechanism (3) is provided with a preheating mechanism (4); and one end of the preheating mechanism (4) is provided with a dust removal mechanism (5); The covering mechanism (1) comprises a bottom plate (11), the upper end of the bottom plate (11) is fixedly connected to a first support plate (12), the lower end of the first support plate (12) is fixedly connected to a hydraulic cylinder (13), the lower end of the hydraulic cylinder (13) is fixedly connected to a cover plate (14), and the lower end of the cover plate (14) is fixedly connected to a connecting plate (15); The covering mechanism (1) further comprises a first roller (16), the lower side wall of the connecting plate (15) is rotatably connected to the first roller (16), the upper end of the bottom plate (11) is fixedly connected to a shell (17), the side wall of the shell (17) is fixedly connected to a first connecting pipe (18), and the inner side wall of the shell (17) is fixedly connected to a partition (19); The preheating mechanism (4) comprises a second connecting tube (41), one end of the second connecting tube (41) is fixedly connected to the first connecting tube (18), one end of the second connecting tube (41) is fixedly connected to a third support plate (42), a side wall of the third support plate (42) is rotatably connected to a third connecting tube (43), a side wall of the third connecting tube (43) is fixedly connected to a torsion spring (48), and one end of the torsion spring (48) is fixedly connected to the third support plate (42); The preheating mechanism (4) further comprises an arc-shaped plate (44), one end of the third connecting tube (43) is fixedly connected to the arc-shaped plate (44), a small hole (45) is opened on the side wall of the arc-shaped plate (44), the side wall of the arc-shaped plate (44) is rotatably connected to a first rotating rod (46), and the side wall of the arc-shaped plate (44) is rotatably connected to a second rotating rod (47).

2. The polyimide film uniform drying device according to claim 1, characterized in that: The ventilation mechanism (2) includes a connecting rod (21), one end of which is fixedly connected to a hydraulic cylinder (13); the upper end of the base plate (11) is fixedly connected to a first sleeve (22); a sliding block (23) is slidably connected inside the first sleeve (22); a side wall of the sliding block (23) is slidably connected to a second sleeve (24); a side wall of the sliding block (23) is fixedly connected to a first air intake pipe (25); and a connecting groove (26) is provided inside the sliding block (23).

3. The polyimide film uniform drying device according to claim 2, characterized in that: The ventilation mechanism (2) further comprises a second air inlet pipe (27), the side wall of the second sleeve (24) is fixedly connected to the second air inlet pipe (27), one end of the second air inlet pipe (27) is fixedly connected to the first connecting pipe (18), the lower end of the sliding block (23) is fixedly connected to a stopper (28), the lower end of the stopper (28) is fixedly connected to a spring (29), and one end of the spring (29) is fixedly connected to the first sleeve (22).

4. The polyimide film uniform drying device according to claim 1, characterized in that: The winding mechanism (3) includes a motor (31), the lower end of the motor (31) is fixedly connected to the bottom plate (11), one end of the motor (31) is fixedly connected to a first rotating shaft (32), the side wall of the first rotating shaft (32) is rotatably connected to a second supporting plate (33), one end of the second supporting plate (33) is fixedly connected to the bottom plate (11), one end of the first rotating shaft (32) is fixedly connected to a second roller (34), and a film (35) is wound around the side wall of the second roller (34).

5. The polyimide film uniform drying device according to claim 4, characterized in that: The winding mechanism (3) further comprises a third roller (36), the side wall of the film (35) is tightly fitted with the third roller (36), one end of the third roller (36) is rotatably connected to the housing (17), one end of the film (35) is wound around a fourth roller (37), and the side wall of the fourth roller (37) is fixedly connected to a transmission rod (38).

6. The polyimide film uniform drying device according to claim 5, characterized in that: The dust removal mechanism (5) comprises a transmission roller (51), the side wall of the transmission roller (51) is tightly fitted with the film (35), the side wall of the transmission roller (51) is fixedly connected to a second rotating shaft (52), the side wall of the second rotating shaft (52) is fixedly connected to a first transmission wheel (53), the side wall of the first transmission wheel (53) is tightly fitted with a belt (54), one end of the belt (54) is tightly fitted with a second transmission wheel (55), the inner side wall of the second transmission wheel (55) is fixedly connected to a third rotating shaft (56), one end of the third rotating shaft (56) is fixedly connected to a first winding roller (57), the side wall of the first winding roller (57) is wound with a sticky belt (58), one end of the sticky belt (58) is wound with a second winding roller (59), and one end of the second winding roller (59) is rotatably connected to the arc plate (44).

7. A method for uniformly drying a polyimide film, characterized in that: The specific steps include: S1, first place the film on the upper end of the shell (17), then start the hydraulic cylinder (13) to move downward, the downward movement of the hydraulic cylinder (13) drives the cover plate (14) to move downward, the downward movement of the cover plate (14) drives the connecting plate (15) to move downward, the downward movement of the connecting plate (15) drives the first roller (16) to move downward, the first roller (16) moves downward to fold the film (35) into a zigzag shape inside the shell (17), the cover plate (14) covers the upper end of the shell (17) so that the inside of the shell (17) is in a relatively sealed environment, which is convenient for the subsequent hot air circulation to dry the film (35), when the first roller (16) moves downward to fold the film (35) into a zigzag shape inside the shell (17), the arc plate (44) will also bend appropriately, the bending of the arc plate (44) will drive the third connecting pipe (43) to rotate, and the rotation of the third connecting pipe (43) will compress the torsion spring (48); S2, when the hydraulic cylinder (13) moves downward, the connecting rod (21) will be driven to move downward at the same time, the connecting rod (21) will be driven to move downward by the sliding block (23), the sliding block (23) will be driven to move downward by the stopper (28), the stopper (28) will be driven downward by the spring (29), and hot air will be introduced into the first air inlet pipe (25), and when the sliding block (23) moves downward, the connecting groove (26) will be driven to correspond to the second air inlet pipe (27). At this time, the first air inlet pipe (25) will be driven downward by the connecting rod (21). 5) The internal hot air will enter the second air inlet pipe (27) through the connecting groove (26), and the hot air inside the second air inlet pipe (27) will enter the inside of the shell (17). A plurality of partitions (19) are provided inside the shell (17), and the plurality of partitions (19) divide the shell (17) into a plurality of chambers. A plurality of first connecting pipes (18) provided outside the shell (17) can make the hot air circulate in the chambers inside the shell (17) one level at a time, and the hot air can circulate through the shell (17); S3, at this time, the motor (31) is started to rotate slowly and uniformly, the rotation of the motor (31) drives the first rotating shaft (32) to rotate, the rotation of the first rotating shaft (32) drives the second roller (34) to rotate, the rotation of the second roller (34) drives the film (35) to rotate, the second roller (34) rotates to reel the film (35), and while the second roller (34) rotates to reel the film (35), it drives the fourth roller (37) to rotate to unreel; S4, the hot air inside the first connecting tube (18) will enter the second connecting tube (41), the hot air inside the second connecting tube (41) will enter the third support plate (42), the hot air inside the third support plate (42) will enter the third connecting tube (43), the hot air inside the third connecting tube (43) will enter the curved plate (44), and the hot air inside the curved plate (44) will be discharged through the small hole (45) to pre-dry the film; S5, during the movement of the film (35), the transmission roller (51) is driven to rotate, the rotation of the transmission roller (51) drives the second rotating shaft (52) to rotate, the rotation of the second rotating shaft (52) drives the first transmission wheel (53) to rotate, the rotation of the first transmission wheel (53) drives the belt (54) to rotate, the rotation of the belt (54) drives the second transmission wheel (55) to rotate, the rotation of the second transmission wheel (55) drives the third rotating shaft (56) to rotate, the rotation of the third rotating shaft (56) drives the first winding roller (57) to rotate, the rotation of the first winding roller (57) drives the sticky belt (58) to reel, the sticky belt (58) and the film (35) run at the same speed, the second winding roller (59) unwinds the sticky belt (58) during the movement of the film (35), and the reeling of the sticky belt (58) removes dust on the surface of the film (35).

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