A drying device for polyimide film

Abstract

The utility model discloses a kind of drying device for polyimide film, it is related to polyimide film processing technical field;And the utility model includes drying bin, one end of drying bin is hingedly installed with No. 1 bin cover, the other end of drying bin is hingedly installed with No. 2 bin cover, the middle part of No. 1 bin cover is provided with feed slot, the middle part of No. 2 bin cover is provided with discharge slot, feed slot and discharge slot correspond horizontally;The inside of drying bin is provided with drying mechanism, the inside of drying bin is also provided with conveying mechanism;Drying mechanism includes heating fan, heating fan is set in the middle part of drying bin inner chamber;By setting drying mechanism, by the effect of driving gear, outer tooth ring and arc slider in drying mechanism, heating fan can be driven to circumferential revolution to the upper side or lower side of polyimide film, drying operation is carried out on the upper and lower surface of polyimide film, to conveniently realize the sufficient drying of polyimide film, and then effectively improve the drying effect of polyimide film.

Description

Technical Field

[0001] This utility model relates to the field of polyimide film processing technology, specifically to a drying device for polyimide films. Background Technology

[0002] Polyimide film, or PI film for short, is a high-performance thin-film insulating material. Polyimide films are mainly divided into two categories: homopolymer polyimide films and biphenyl polyimide films. According to different applications, PI films can be classified into electrical PI films, electronic PI films, thermal control PI films, aerospace PI films, and CPI films for flexible displays, etc. The polyimide film needs to be dried during the processing of polyimide films; however, existing polyimide film drying devices still have some drawbacks: In existing polyimide film drying devices, the device can usually only dry one side of the polyimide film during the drying operation. This results in the high-temperature airflow not being able to fully contact the polyimide film, thus affecting the drying effect. At the same time, existing polyimide film drying devices have limited functions and are mostly inconvenient for conveying the polyimide film, which in turn affects the drying efficiency. Utility Model Content

[0003] In order to solve the above problems, the purpose of this utility model is to provide a drying device for polyimide films.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a drying device for polyimide film, comprising a drying chamber, a first chamber cover hinged to one end of the drying chamber, a second chamber cover hinged to the other end of the drying chamber, a feeding trough provided in the middle of the first chamber cover, and a discharging trough provided in the middle of the second chamber cover, wherein the feeding trough and the discharging trough are horizontally corresponding. The drying chamber is equipped with a drying mechanism and a conveying mechanism. The drying mechanism includes a heating fan, which is located in the middle of the drying chamber. A circular guide rail is fixedly installed in the middle of the drying chamber. Two arc-shaped sliders are slidably installed on the inner wall of the circular guide rail. A fixing rod is fixedly installed on one side of one of the arc-shaped sliders. One end of the fixing rod is fixedly connected to the heating fan. A motor is fixedly installed on the outer wall of the drying chamber. A rotating rod is fixedly installed at the drive output end of the motor. A drive gear is fixedly installed at one end of the rotating rod. An external gear ring is fixedly installed on one side of the two arc-shaped sliders. The drive gear and the external gear ring are meshed and connected.

[0005] Preferably, a handle is fixedly installed on one side of both the No. 1 and No. 2 compartment covers.

[0006] Preferably, an annular cover plate is detachably installed in the middle of the drying chamber.

[0007] Preferably, both the annular cover plate and the drying chamber are provided with several heat dissipation grooves in the middle.

[0008] Preferably, the conveying mechanism includes four rotating shafts, wherein two adjacent rotating shafts are rotatably installed at one end of the drying chamber, and the other two rotating shafts are rotatably installed at the other end of the drying chamber. Conveying rollers are fixedly installed on the outside of the rotating shafts. One end of each of the two rotating shafts is fixedly provided with a driven gear, and the two driven gears are meshed together. One end of each of the four rotating shafts is fixedly provided with a synchronous pulley, and a synchronous belt is installed between the two horizontally corresponding synchronous pulleys.

[0009] Preferably, the outer wall of the conveying roller is fixedly provided with an anti-slip sleeve.

[0010] Preferably, a second motor is fixedly installed at the other end of the drying chamber, and a rotating shaft is fixedly installed at the drive output end of the second motor. A sector gear is fixedly installed at one end of the rotating shaft, and the sector gear meshes with one of the driven gears.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. In this utility model, by setting up a drying mechanism, the heating fan can be driven to rotate circumferentially above or below the polyimide film by the action of the drive gear, external gear ring and arc-shaped slider in the drying mechanism, and the drying operation is carried out on the upper and lower surfaces of the polyimide film, thereby conveniently realizing the full drying of the polyimide film and effectively improving the drying effect of the polyimide film. 2. In this utility model, by setting up a conveying mechanism, the cooperation between the sector gear and the driven gear in the conveying mechanism causes the conveying roller to rotate intermittently in opposite directions, thereby intermittently conveying the polyimide film during the drying process, thereby improving the drying efficiency of the polyimide film. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1This is a schematic diagram of the structure of a drying device for polyimide film according to the present invention.

[0014] Figure 2 This is another schematic diagram of a drying device for polyimide films according to the present invention.

[0015] Figure 3 This is a cross-sectional structural diagram of the drying chamber of this utility model.

[0016] Figure 4 This is a schematic diagram of the drying mechanism of this utility model.

[0017] Figure 5 This is a schematic diagram of the conveying mechanism of this utility model.

[0018] In the diagram: 1. Drying chamber; 11. No. 1 chamber cover; 12. No. 2 chamber cover; 111. Feed chute; 121. Discharge chute; 13. Handle; 14. Annular cover plate; 15. Heat dissipation trough; 2. Drying mechanism; 21. Heating fan; 22. Circular guide rail; 23. Arc-shaped slider; 24. Fixed rod; 25. No. 1 motor; 26. Rotating rod; 27. Drive gear; 28. External gear ring; 3. Conveying mechanism; 31. Rotating shaft; 32. Conveying roller; 33. Anti-slip sleeve; 34. Driven gear; 35. Synchronous pulley; 36. Synchronous belt; 37. No. 2 motor; 38. Rotating shaft; 39. Sector gear. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example: Figure 1-5As shown, this utility model provides a drying device for polyimide film, including a drying chamber 1. A first chamber cover 11 is hinged to one end of the drying chamber 1, and a second chamber cover 12 is hinged to the other end. The first and second chamber covers facilitate operation during the polyimide film drying process. A feed chute 111 is located in the middle of the first chamber cover 11, and a discharge chute 121 is located in the middle of the second chamber cover 12. The feed chute 111 and the discharge chute 121 are horizontally aligned. By using the feed chute 111 and the discharge chute 121, the polyimide film to be dried can enter the drying chamber 1 through the feed chute 111. After drying... The polyimide film can be discharged outward through the discharge trough 121. A handle 13 is fixedly installed on one side of the first compartment cover 11 and the second compartment cover 12. The handle 13 allows the operator to open the first compartment cover 11 and the second compartment cover 12. A ring cover plate 14 is detachably installed in the middle of the drying chamber 1. The ring cover plate 14 is bolted to the middle of the drying chamber 1. By removing the ring cover plate 14, the equipment in the drying chamber 1 can be inspected and maintained. Several heat dissipation grooves 15 are provided in the middle of the ring cover plate 14 and the drying chamber 1. By providing heat dissipation grooves 15, the airflow generated during the drying operation of the polyimide film can be discharged outward through the heat dissipation grooves 15. The drying chamber 1 is equipped with a drying mechanism 2 and a conveying mechanism 3. By setting up the drying mechanism 2 and the conveying mechanism 3, the drying mechanism 2 can dry the top and bottom surfaces of the polyimide film, thereby improving the drying effect of the polyimide film. The conveying mechanism 3 can intermittently convey the polyimide entering the drying chamber 1, thereby improving the drying efficiency of the polyimide film. The drying mechanism 2 includes a heating fan 21, which is located in the middle of the inner cavity of the drying chamber 1. A circular guide rail 22 is fixedly installed in the middle of the inner cavity of the drying chamber 1. Two arc-shaped sliders 23 are slidably installed on the inner wall of the circular guide rail 22. A fixing rod 24 is fixedly installed on one side of one of the arc-shaped sliders 23. One end of the fixing rod 24 is fixedly connected to the heating fan 21. By driving the arc-shaped slider 23 to slide circumferentially on the circular guide rail 22, the arc-shaped slider 23 can cause the heating fan 21 to revolve circumferentially in the drying chamber 1 through the fixing rod 24, so that the heating fan 21 can be located above or below the polyimide film. A No. 1 motor 25 is fixedly installed on the outer wall of the drying chamber 1. A rotating rod 26 is fixedly installed at the drive output end of the No. 1 motor 25. A drive gear 27 is fixedly installed at one end of the rotating rod 26. An external gear ring 28 is fixedly installed on one side of the two arc-shaped sliders 23. The drive gear 27 and the external gear ring 28 are meshed and connected. When the No. 1 motor 25 is started, the drive shaft of the No. 1 motor 25 can rotate the drive gear 27 through the rotating rod 26. The drive gear 27 can make the arc-shaped sliders 23 slide circumferentially on the circular guide rail 22 through the external gear ring 28.

[0021] The conveying mechanism 3 includes four rotating shafts 31. Two adjacent rotating shafts 31 are rotatably mounted at one end of the drying chamber 1, and the other two rotating shafts 31 are rotatably mounted at the other end of the drying chamber 1. Conveying rollers 32 are fixedly mounted on the outside of the rotating shafts 31, and anti-slip sleeves 33 are fixedly mounted on the outer wall of the conveying rollers 32. By setting four rotating shafts 31 and four conveying rollers 32, when the rotating shafts 31 rotate, the rotating shafts 31 can cause the conveying rollers 32 to rotate. When two vertically corresponding conveying rollers 32 rotate synchronously in opposite directions, the polyimide film can be conveyed through the anti-slip sleeves 33. Two of the rotating shafts 31 are fixedly equipped with driven gears 34 at one end. The two driven gears 34 are meshed together. By driving one driven gear 34 to rotate, the two vertically corresponding rotating shafts 31 and the two conveyor rollers 32 can be synchronously rotated in opposite directions, thereby conveying the polyimide film. One end of each of the four rotating shafts 31 is fixedly equipped with a synchronous pulley 35. A synchronous belt 36 is installed between the two horizontally corresponding synchronous pulleys 35. By setting the synchronous pulleys 35 and the synchronous belts 36, the two rotating shafts 31 and the two conveyor rollers 32 at both ends of the drying chamber 1 can be driven to rotate in opposite directions. The conveying roller 32 rotates synchronously. A second motor 37 is fixedly installed at the other end of the drying chamber 1. A rotating shaft 38 is fixedly installed at the drive output end of the second motor 37. A sector gear 39 is fixedly installed at one end of the rotating shaft 38. The sector gear 39 and one of the driven gears 34 are meshed and connected. By starting the second motor 37, the drive shaft of the second motor 37 can make the sector gear 39 rotate through the rotating shaft 38. The sector gear 39 can make the driven gear 34 rotate intermittently, thereby causing the conveying roller 32 to rotate intermittently and convey the polyimide film intermittently.

[0022] Working principle: In the drying operation of polyimide film, the operator first opens the No. 1 cover 11 and the No. 2 cover 12, so that the polyimide film to be dried enters the drying chamber 1 through the feed chute 111. Then, the polyimide film passes through the two vertically corresponding conveyor rollers 32, and then extends out through the discharge chute 121. The end of the polyimide film is wound around the external winding equipment, and then the No. 1 cover 11 and the No. 2 cover 12 are closed. Subsequently, the operators started the heating fan 21 and the first motor 25. The drive shaft of the first motor 25 rotated the drive gear 27 through the rotating rod 26. The drive gear 27 caused the two arc-shaped sliders 23 to slide circumferentially on the circular guide rail 22 through the external gear ring 28. The arc-shaped sliders 23 caused the heating fan 21 to revolve circumferentially through the fixed rod 24, so that the heating fan 21 was positioned above the polyimide film to dry the polyimide film. Then, the heating fan 21 was driven to revolve circumferentially to the bottom of the polyimide film to dry the polyimide film. This conveniently achieved the full drying of the polyimide film, thereby effectively improving the drying effect of the polyimide film. Subsequently, the operator starts motor 37. The drive shaft of motor 37 drives sector gear 39 to rotate via shaft 38. Sector gear 39 causes a corresponding driven gear 34 to rotate intermittently. At this time, the two driven gears 34 cause the two conveying rollers 32 to rotate synchronously in opposite directions via corresponding rotating shaft 31. Through the action of four synchronous pulleys 35 and two synchronous belts 36, the two vertically corresponding conveying rollers 32 rotate intermittently in opposite directions, thus intermittently conveying the polyimide film. This conveniently realizes the intermittent conveying of the polyimide film during the drying process, thereby improving the drying efficiency of the polyimide film.

[0023] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0024] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A drying apparatus for polyimide films, comprising a drying chamber (1), characterized in that: One end of the drying chamber (1) is hinged to a first chamber cover (11), and the other end of the drying chamber (1) is hinged to a second chamber cover (12). The first chamber cover (11) has a feeding chute (111) in the middle, and the second chamber cover (12) has a discharging chute (121) in the middle. The feeding chute (111) and the discharging chute (121) are horizontally aligned. The drying chamber (1) is equipped with a drying mechanism (2) and a conveying mechanism (3). The drying mechanism (2) includes a heating fan (21), which is located in the middle of the inner cavity of the drying chamber (1). A circular guide rail (22) is fixedly installed in the middle of the inner cavity of the drying chamber (1). Two arc-shaped sliders (23) are slidably installed on the inner wall of the circular guide rail (22). A fixing rod (24) is fixedly installed on one side of one of the arc-shaped sliders (23). One end of the fixing rod (24) is fixedly connected to the heating fan (21). A No. 1 motor (25) is fixedly installed on the outer wall of the drying chamber (1). A rotating rod (26) is fixedly installed at the drive output end of the No. 1 motor (25). A drive gear (27) is fixedly installed at one end of the rotating rod (26). An external gear ring (28) is fixedly installed on one side of the two arc-shaped sliders (23). The drive gear (27) and the external gear ring (28) are meshed and connected.

2. The drying apparatus for polyimide films as described in claim 1, characterized in that, A handle (13) is fixedly installed on one side of both the No. 1 compartment cover (11) and the No. 2 compartment cover (12).

3. The drying apparatus for polyimide films as described in claim 1, characterized in that, The drying chamber (1) is detachably fitted with an annular cover plate (14) in the middle.

4. The drying apparatus for polyimide films as described in claim 3, characterized in that, Both the annular cover plate (14) and the drying chamber (1) are provided with several heat dissipation grooves (15) in the middle.

5. A drying apparatus for polyimide films as described in claim 1, characterized in that, The conveying mechanism (3) includes a rotating shaft (31), and four rotating shafts (31) are provided. Two adjacent rotating shafts (31) are rotatably installed at one end of the drying chamber (1), and the other two rotating shafts (31) are rotatably installed at the other end of the drying chamber (1). A conveying roller (32) is fixedly provided on the outside of the rotating shaft (31). One end of each of the two rotating shafts (31) is fixedly provided with a driven gear (34), and the two driven gears (34) are meshed together. One end of each of the four rotating shafts (31) is fixedly provided with a synchronous pulley (35), and a synchronous belt (36) is installed between the two horizontally corresponding synchronous pulleys (35).

6. A drying apparatus for polyimide films as described in claim 5, characterized in that, The outer wall of the conveying roller (32) is fixedly provided with an anti-slip sleeve (33).

7. A drying apparatus for polyimide films as described in claim 5, characterized in that, A second motor (37) is fixedly installed at the other end of the drying chamber (1). A rotating shaft (38) is fixedly installed at the drive output end of the second motor (37). A sector gear (39) is fixedly installed at one end of the rotating shaft (38). The sector gear (39) is meshed with one of the driven gears (34).

Images