Hot air flow equalizing and drying device for polyimide film production

Abstract

The utility model discloses a hot air flow equalizing and drying device for polyimide film production, and relates to the technical field of polyimide films. Supporting strips are symmetrically installed on the front side and the rear side of the lower end of the processing box, supporting bases are symmetrically installed at the lower ends of the supporting strips, filtering boxes are arranged in the middles of the upper end and the lower end of the processing box, fans are arranged in the filtering boxes, and a feeding port and a discharging port are formed in the front end and the rear end of the processing box correspondingly. A high-temperature box external controller is arranged between the first blowing boxes and the second blowing boxes, a fan is started to convey gas to the first blowing boxes, meanwhile, a heating rod is started to heat the gas exhausted by the first blowing boxes, and the upper and lower first blowing boxes are used for conducting double-face hot air drying on the flowing film, so that the film is heated evenly; and the production efficiency of the polyimide film raw material is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of polyimide films, in particular to a hot air uniform flow drying device for polyimide film production. Background Art

[0002] Polyimide film is one of the earliest commercial products of polyimide. It is used for slot insulation of motors and cable wrapping materials. Transparent polyimide film can be used as a soft solar cell base plate. Polyimide fiber can be used for hot gas filtering. Polyimide yarn can separate dust and special chemicals from exhaust gas.

[0003] The existing drying device has poor drying effect during use and cannot ensure that the moisture on the polyimide film raw material is quickly and effectively heated and removed. When the drying temperature is low, it is difficult to ensure that the polyimide film raw material can be completely dried due to the short drying time, which reduces the quality of polyimide film production and affects the production efficiency of polyimide film raw materials. For this reason, we propose a hot air uniform flow drying device for polyimide film production. Utility Model Content

[0004] The technical problem to be solved by the present invention is to overcome the existing defects and provide a hot air uniform flow drying device for polyimide film production. The fan delivers gas to the blowing box and simultaneously starts the heating rod to heat the gas discharged from the blowing box. The upper and lower sets of blowing boxes are used to perform double-sided hot air drying on the flowing film, so that the film is heated evenly, thereby improving the production efficiency of the polyimide film raw materials and effectively solving the problems in the background technology.

[0005] To achieve the above-mentioned object, the present utility model provides the following technical solutions: A hot air uniform flow drying device for polyimide film production, comprising a processing box;

[0006] Support bars are symmetrically installed on the front and back sides of the lower end of the processing box, and support seats are symmetrically installed on the lower ends of the support bars. A filter box is provided in the middle of the upper and lower ends of the processing box, and a fan is provided inside the filter box. The front and back ends of the processing box are respectively provided with a feed port and a discharge port. Blowing box 1 and blowing box 2 are symmetrically provided inside the processing box, and a high-temperature box is provided between blowing box 1 and blowing box 2. Blowing box 1, blowing box 2 and the high-temperature box are fixedly connected to the inner wall of the processing box through a fixing plate.

[0007] A fan is fixedly installed in the middle of the upper and lower ends of the processing box, the other end of the fan is connected with a conveying pipe, the other end of the conveying pipe passes through the processing box and is connected with a blowing box, heating rods are evenly installed inside the blowing box, an inclined plate is symmetrically installed at the lower end of the blowing box, a baffle is symmetrically installed between the two inclined plates, the other end of the baffle is fixedly connected to the lower end of the blowing box, the input end of the fan and the heating rod is electrically connected to the output end of the external controller.

[0008] The external controller starts the fan to deliver gas to the blowing box 1, and at the same time starts the heating rod to heat the gas discharged from the blowing box 1. The upper and lower sets of blowing boxes are used to perform double-sided hot air drying on the flowing film, so that the film is heated evenly, thereby improving the production efficiency of the polyimide film raw materials.

[0009] Furthermore, a connecting frame is fixedly installed at the front end of the processing box, and rotating rollers are symmetrically arranged in the connecting frame. Water-absorbing cotton is fixedly installed on the rotating rollers. Both ends of the rotating rollers are fixedly connected to the connecting rod, and the other end of the connecting rod is rotatably connected to the inner wall of the connecting frame.

[0010] One end of the polyimide film is passed through the connecting frame into the feed port, and the absorbent cotton on the rotating roller is used to contact the two sides of the film in the connecting frame to pre-absorb the water on the surface of the film, reduce the residual moisture in the film, and thus improve the efficiency of subsequent drying of the film.

[0011] Furthermore, a support plate is fixedly installed on the right side of the front end support bar, and a driving motor is fixedly installed on the support plate. The output shaft of the driving motor is fixedly connected to gear 1, and gear 1 is rotatably connected to the front end of the processing box. The upper end of gear 1 is engaged with gear 2, and gear 2 is rotatably connected to the front end of the processing box. A conveying roller is rotatably connected to the processing box through a connecting rod. Two connecting rods pass through the processing box and are fixedly connected to gear 1 and gear 2 respectively. The inner middle end of the processing box is rotatably connected to the support roller through a fixed rod, and the input end of the driving motor is electrically connected to the output end of the external controller.

[0012] The external controller starts the drive motor, which drives gear one to rotate, and gear one then drives gear two, and then drives two conveyor rollers to rotate, so as to facilitate the conveying of the polyimide film that needs to be dried. The setting of the support roller can play a supporting role during the conveying process.

[0013] Furthermore, a filter box is fixedly installed in the middle of the upper and lower ends of the processing box, and filter holes are opened at the four ends of the filter box, and dustproof nets are fixedly installed in the filter holes.

[0014] The filter holes and dust-proof nets can prevent external dust from entering the filter box, greatly improving the cleanliness of the polyimide film drying process.

[0015] Furthermore, the other end of the fan is connected to the second conveying pipe, the lower end of the second blowing box is symmetrically installed with an inclined plate, and the second baffle is symmetrically installed between the second inclined plates. The other end of the second baffle is fixedly connected to the lower end of the second blowing box, and one end of the second blowing box is fixedly connected to the air cooler, and the input end of the air cooler is electrically connected to the output end of the external controller.

[0016] The setting of the air cooler can use air cooling to cool and solidify the polyimide film. It has a large cooling range, long aging time, good cooling effect, and is convenient for subsequent winding.

[0017] Furthermore, a sealed door is hinged at the left end of the processing box, and a handle is fixedly installed on the sealed door. Heating plates are installed at both ends inside the high-temperature box. The high-temperature box is slidably connected to the drying plate through a slider, and a handle is installed on the drying plate. The input end of the heating plate is electrically connected to the output end of the external controller.

[0018] After hot air drying, the polyimide film enters the high-temperature box. The external controller heats the plate, which dries the polyimide film at high temperature. The evaporated moisture is absorbed by the desiccant in the drying plate to prevent the polyimide film from getting damp. The drying effect is good and can be completely dried, which improves the quality of polyimide film production. The drying plate can be replaced by opening the sealed door and using the handle and slider.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: the hot air uniform flow drying device for polyimide film production has the following advantages:

[0020] 1. The external controller starts the fan to deliver gas to the blowing box 1, and at the same time starts the heating rod to heat the gas discharged from the blowing box 1. The upper and lower blow boxes are used to perform double-sided hot air drying on the flowing film, so that the film is heated evenly, thereby improving the production efficiency of the polyimide film raw materials.

[0021] 2. Pass one end of the polyimide film into the feed port through the connecting frame. In the connecting frame, the absorbent cotton on the rotating roller is used to contact both sides of the film to pre-absorb the water on the surface of the film, reduce the residual moisture in the film, and thus improve the efficiency of subsequent drying of the film.

[0022] 3. After hot air drying, the polyimide film enters the high-temperature box. The external controller heats the film, and the heating plate dries the polyimide film at high temperature. The evaporated moisture is absorbed by the desiccant in the drying plate to prevent the polyimide film from getting damp again. The drying effect is good and can be completely dried, which improves the quality of polyimide film production. The sealing door can be opened and the drying plate can be replaced using the handle and slider. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of the utility model.

[0024] Figure 2 For this utility model Figure 1 Schematic diagram of the internal structure cross-section.

[0025] Figure 3 For this utility model Figure 1 Left view structural diagram.

[0026] Figure 4 For this utility model Figure 1 Side view structural diagram.

[0027] In the figure: 1 processing box, 2 support bar, 3 support seat, 4 connecting frame, 5 connecting rod, 6 rotating roller, 7 support plate, 8 gear 1, 9 driving motor, 10 gear 2, 11 conveying roller, 12 feeding port, 13 support roller, 14 filter box, 15 filter hole, 16 fan, 17 conveying pipe 1, 18 blowing box 1, 19 heating rod, 20 inclined plate 1, 21 baffle 1, 22 conveying pipe 2, 23 blowing box 2, 24 inclined plate 2, 25 baffle 2, 26 air cooler, 27 high temperature box, 28 slider, 29 drying plate, 30 handle, 31 heating plate, 32 sealing door, 33 handle. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] See also Figure 1-4 , this embodiment provides a technical solution: a hot air uniform flow drying device for polyimide film production, comprising a processing box 1;

[0030] Support bars 2 are symmetrically installed on the front and back sides of the lower end of the processing box 1, and support seats 3 are symmetrically installed on the lower ends of the support bars 2. A filter box 14 is provided in the middle of the upper and lower ends of the processing box 1, and a fan 16 is provided inside the filter box 14. The front and back ends of the processing box 1 are respectively provided with a feed port 12 and a discharge port. A blowing box 18 and a blowing box 2 23 are symmetrically provided inside the processing box 1. A high-temperature box 27 is provided between the blowing box 18 and the blowing box 2 23. The blowing box 1 18, the blowing box 2 23 and the high-temperature box 27 are all fixedly connected to the inner wall of the processing box 1 through a fixing plate;

[0031] A fan 16 is fixedly installed in the middle of the upper and lower ends of the processing box 1, and the other end of the fan 16 is connected to a conveying pipe 17. The other end of the conveying pipe 17 passes through the processing box 1 and is connected to a blowing box 18. Heating rods 19 are evenly installed inside the blowing box 18. Inclined plates 20 are symmetrically installed at the lower end of the blowing box 18. A baffle 21 is symmetrically installed between the two inclined plates 20. The other end of the baffle 21 is fixedly connected to the lower end of the blowing box 18. The input ends of the fan 16 and the heating rod 19 are electrically connected to the output end of the external controller.

[0032] The external controller starts the fan 16 to supply gas to the blowing box 18, and at the same time starts the heating rod 19 to heat the gas discharged from the blowing box 18. The upper and lower groups of blowing boxes 18 are used to perform double-sided hot air drying on the flowing film, so that the film is heated evenly, thereby improving the production efficiency of the polyimide film raw materials.

[0033] A connecting frame 4 is fixedly installed at the front end of the processing box 1, and rotating rollers 6 are symmetrically arranged inside the connecting frame 4. Water-absorbing cotton is fixedly installed on the rotating rollers 6. Both ends of the rotating rollers 6 are fixedly connected to the connecting rod 5, and the other end of the connecting rod 5 is rotatably connected to the inner wall of the connecting frame 4.

[0034] One end of the polyimide film is passed through the connecting frame 4 into the feed port 12, and the absorbent cotton on the rotating roller 6 is used to contact the two sides of the film in the connecting frame 4 to pre-absorb the water on the surface of the film, thereby reducing the residual moisture in the film and improving the efficiency of subsequent drying of the film.

[0035] A support plate 7 is fixedly installed on the right side of the front end support bar 2, and a drive motor 9 is fixedly installed on the support plate 7. The output shaft of the drive motor 9 is fixedly connected to gear 1 8, and gear 1 8 is rotatably connected to the front end of the processing box 1. The upper end of gear 1 8 is engaged with gear 2 10, and gear 2 10 is rotatably connected to the front end of the processing box 1. A conveying roller 11 is rotatably connected to the processing box 1 through a connecting rod. The two connecting rods pass through the processing box 1 and are fixedly connected to gear 1 8 and gear 2 10 respectively. The middle end of the interior of the processing box 1 is rotatably connected to a support roller 13 through a fixed rod. The input end of the drive motor 9 is electrically connected to the output end of the external controller.

[0036] The external controller starts the drive motor 9, which drives the gear 1 8 to rotate, and the gear 1 8 then drives the gear 2 10, and then drives the two conveying rollers 11 to rotate, so as to facilitate the conveying of the polyimide film that needs to be dried. The setting of the support roller 13 can play a supporting role during the conveying process.

[0037] A filter box 14 is fixedly installed in the middle of the upper and lower ends of the processing box 1. Filter holes 15 are opened at the four ends of the filter box 14, and dustproof nets are fixedly installed in the filter holes 15.

[0038] The filter holes 15 and the dustproof net can prevent external dust from entering the filter box 14, thereby greatly improving the cleanliness of the polyimide film drying.

[0039] The other end of the fan 16 is connected to the conveying pipe 22, and the lower end of the blowing box 23 is symmetrically installed with an inclined plate 24, and a baffle 25 is symmetrically installed between the inclined plates 24. The other end of the baffle 25 is fixedly connected to the lower end of the blowing box 23, and one end of the blowing box 23 is fixedly connected to the cold air machine 26. The input end of the cold air machine 26 is electrically connected to the output end of the external controller.

[0040] The setting of the air cooler 26 can cool and solidify the polyimide film by air cooling, with a large cooling range, long aging time, good cooling effect, and convenience for subsequent winding.

[0041] A sealed door 32 is hinged at the left end of the processing box 1, and a handle 33 is fixedly installed on the sealed door 32. Heating plates 31 are installed at both ends of the interior of the high-temperature box 27. The high-temperature box 27 is slidably connected to the drying plate 29 through a slider 28. A handle 30 is installed on the drying plate 29. The input end of the heating plate 31 is electrically connected to the output end of the external controller.

[0042] After hot air drying, the polyimide film enters the high-temperature box 27, and the external controller heats the plate 31. The heating plate 31 dries the polyimide film at high temperature. The evaporated moisture is absorbed by the desiccant in the drying plate 29, which prevents the polyimide film from getting damp again. The drying effect is good and the film can be completely dried, thereby improving the quality of polyimide film production. The sealing door 32 is opened and the drying plate 29 can be replaced using the handle 30 and the slider 28.

[0043] The working principle of a hot air uniform flow drying device for polyimide film production provided by the present invention is as follows: an external controller starts the fan 16 to convey gas to the blowing box 18, and simultaneously starts the heating rod 19 to heat the gas discharged from the blowing box 18, and utilizes the upper and lower groups of blowing boxes 18 to perform double-sided hot air drying on the flowing film, so that the film is heated evenly, thereby improving the production efficiency of the polyimide film raw material, and inserts one end of the polyimide film into the feed port 12 through the connecting frame 4, and utilizes the absorbent cotton on the rotating roller 6 to contact both sides of the film in the connecting frame 4, and pre-absorbs the water on the surface of the film, thereby reducing the residual moisture in the film, thereby improving the efficiency of subsequent film drying, and driving the motor 9 to rotate the gear 8, and the gear 8 then drives the gear 2 10, and then drives the two conveying rollers 11 to rotate, so as to facilitate the drying of the polyimide film to be dried. The film is transported, and the setting of the support roller 13 can play a supporting role in the transportation process. The setting of the filter hole 15 and the dustproof net can prevent external dust from entering the filter box 14, which greatly improves the cleanliness of the polyimide film drying. The setting of the air cooler 26 can use air cooling to cool and solidify the polyimide film. The cooling range is large, the time is long, the cooling effect is good, and the subsequent winding is convenient. The polyimide film after hot air drying enters the high-temperature box 27, and the external controller heats the plate 31. The heating plate 31 performs high-temperature drying on the polyimide film. The evaporated moisture is absorbed by the desiccant in the drying plate 29 to prevent the polyimide film from getting damp. The drying effect is good and it can be completely dried, thereby improving the quality of polyimide film production. The sealing door 32 is opened and the drying plate 29 can be replaced using the handle 30 and the slider 28.

[0044] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A hot air uniform flow drying device for polyimide film production, characterized by: It includes a processing box (1); Support bars (2) are symmetrically installed on both sides of the front and rear ends of the lower end of the processing box (1), and support seats (3) are symmetrically installed on the lower ends of the support bars (2). A filter box (14) is provided in the middle of the upper and lower ends of the processing box (1), and a fan (16) is provided inside the filter box (14). A feed port (12) and a discharge port are respectively provided at the front and rear ends of the processing box (1). A blow box 1 (18) and a blow box 2 (23) are symmetrically provided inside the processing box (1), and a high-temperature box (27) is provided between the blow box 1 (18) and the blow box 2 (23). The blow box 1 (18), the blow box 2 (23) and the high-temperature box (27) are all fixedly connected to the inner wall of the processing box (1) through a fixing plate. A fan (16) is fixedly installed in the middle of the upper and lower ends of the processing box (1), the other end of the fan (16) is connected to the conveying pipe (17), the other end of the conveying pipe (17) passes through the processing box (1) and is connected to the blowing box (18), heating rods (19) are evenly installed inside the blowing box (18), the lower end of the blowing box (18) is symmetrically installed with an inclined plate (20), a baffle (21) is symmetrically installed between the two inclined plates (20), the other end of the baffle (21) is fixedly connected to the lower end of the blowing box (18), and the input end of the fan (16) and the heating rod (19) is electrically connected to the output end of the external controller.

2. The hot air uniform flow drying device for polyimide film production according to claim 1, characterized in that: A connecting frame (4) is fixedly installed at the front end of the processing box (1), rotating rollers (6) are symmetrically arranged in the connecting frame (4), and absorbent cotton is fixedly installed on the rotating rollers (6). Both ends of the rotating rollers (6) are fixedly connected to the connecting rod (5), and the other end of the connecting rod (5) is rotatably connected to the inner wall of the connecting frame (4).

3. The hot air uniform flow drying device for polyimide film production according to claim 1, characterized in that: A support plate (7) is fixedly installed on the right side of the front support bar (2), and a drive motor (9) is fixedly installed on the support plate (7). The output shaft of the drive motor (9) is fixedly connected to gear 1 (8), gear 1 (8) is rotatably connected to the front end of the processing box (1), the upper end of gear 1 (8) is meshed with gear 2 (10), gear 2 (10) is rotatably connected to the front end of the processing box (1), a conveying roller (11) is rotatably connected to the processing box (1) through a connecting rod, and the two connecting rods pass through the processing box (1) and are fixedly connected to gear 1 (8) and gear 2 (10) respectively. The middle end of the processing box (1) is rotatably connected to a support roller (13) through a fixed rod. The input end of the drive motor (9) is electrically connected to the output end of the external controller.

4. The hot air uniform flow drying device for polyimide film production according to claim 1, characterized in that: A filter box (14) is fixedly installed in the middle of the upper and lower ends of the processing box (1), and filter holes (15) are opened at the four ends of the filter box (14), and dustproof nets are fixedly installed in the filter holes (15).

5. The hot air uniform flow drying device for polyimide film production according to claim 1, characterized in that: The other end of the fan (16) is connected to the second conveying pipe (22), and the lower end of the second blowing box (23) is symmetrically installed with a second inclined plate (24), and a second baffle (25) is symmetrically installed between the second inclined plates (24). The other end of the second baffle (25) is fixedly connected to the lower end of the second blowing box (23), and one end of the second blowing box (23) is fixedly connected to the cold air machine (26). The input end of the cold air machine (26) is electrically connected to the output end of the external controller.

6. The hot air uniform flow drying device for polyimide film production according to claim 1, characterized in that: The left end of the processing box (1) is hinged with a sealed door (32), and a handle (33) is fixedly installed on the sealed door (32). Heating plates (31) are installed at both ends of the interior of the high-temperature box (27). The high-temperature box (27) is slidably connected to a drying plate (29) through a slider (28), and a handle (30) is installed on the drying plate (29). The input end of the heating plate (31) is electrically connected to the output end of an external controller.

Images