Film winding device for polyimide film production
By designing transmission, pressing, tensioning roller groups and an electrostatic eliminator in the production of polyimide film, the problem of uneven tension during film cutting was solved, ensuring the flatness and tight winding of the film and improving the winding quality.
Patent Information
- Application Number
- CN202423011488.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-12-06
AI Technical Summary
During the production of polyimide film, uneven tension during film cutting can cause wrinkles and other problems, affecting the winding quality.
A roller assembly comprising a drive roller, a pressure roller, a tension roller, and a take-up roller was designed. Combined with an electrostatic eliminator and a cutter, the assembly ensures uniform stress on the film through electrostatic elimination, drive tensioning, pressing, and tensioning processes. A tensioning block connected to a spring is set up to slide along a guide rail to prevent wrinkles and cracks.
This ensures uniform stress during film winding, avoids wrinkles and cracks, and improves winding quality.
Smart Images
Figure CN223521964U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a winding device technical field, concretely is a kind of film winding device for polyimide film production. BACKGROUND
[0002] Polyimide is the general term of a kind of aromatic heterocyclic polymer containing imine ring in main chain, it is one of the best comprehensive performance organic high molecular material.Polyimide synthesized by pyromellitic dianhydride and p-phenylenediamine, thermal decomposition temperature reaches 600 °C, it is one of the highest thermal stability variety among polymer so far, polyimide usually will be made into film and use, in the production process of polyimide product, winding device is needed to be used to the polyimide film produced by winding and winding.
[0003] In the winding process of film, it needs to be cut according to the winding amount, in the cutting process, it often causes wrinkles and other problems due to uneven film tension, especially in the tension of cutting place changes suddenly, leading to film shrinkage appears wrinkle, affects winding quality, and has influence on winding work and subsequent use of film. UTILITY MODEL CONTENT
[0004] The utility model aims at making up for the deficiency of prior art, provide a kind of film winding device for polyimide film production.
[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of film winding device for polyimide film production, including bottom plate, the bottom plate upper surface one end is fixedly connected with static electricity elimination machine, the static electricity elimination machine top inside is movably connected with film, the bottom plate upper surface near static electricity elimination machine is fixedly connected with transmission roller, the bottom plate upper surface center position is fixedly connected with compression roller, the compression roller top side is fixedly connected with cutting knife respectively, the bottom plate upper surface between transmission roller and compression roller is movably connected with a pair of waste box, the bottom plate upper surface another end is fixedly connected with winding roller, the bottom plate upper surface between compression roller and winding roller is fixedly connected with tensioning roller, the transmission roller bottom end is fixedly connected with first motor, the winding roller bottom end is fixedly connected with second motor, the film is movably connected on the outer wall of transmission roller, compression roller and tensioning roller and winding roller.
[0006] The above, the transmission roller includes support, the support top is movably connected with first transmission roller by bearing, the support between middle segment is movably connected with second transmission roller by bearing, the film is movably connected on the outer wall of first transmission roller and second transmission roller in proper order, the second transmission roller one end is movably connected with the output shaft of first motor by belt drive.
[0007] The top end of the compression roller is movably connected with a pair of compression roller wheels through bearings, and a film is movably connected between the compression roller wheels.
[0008] The cutting knife is movably connected with a bolt at one end side, is fixedly connected with the compression roller through the bolt, is fixedly connected with a cutter at the side center close to the bolt, the cutter is conical, is movably connected with the lower surface of the film, is fixedly connected with a baffle at the top end of the side close to the bolt, and is fixedly connected with a material distributing block at the bottom end of the side close to the bolt.
[0009] The top end of the compression roller is movably connected with a pair of compression roller wheels through bearings, and a film is movably connected between the compression roller wheels.
[0010] The top end of the compression roller is movably connected with a pair of compression roller wheels through bearings, and a film is movably connected between the compression roller wheels.
[0011] The top end of the compression roller is movably connected with a pair of compression roller wheels through bearings, and a film is movably connected between the compression roller wheels.
[0012] Compared with the prior art, the high-temperature-resistant mobile phone glass cover plate has the following beneficial effects:
[0013] First, the roller set composed of the transmission roller, the compression roller, the tensioning roller and the winding roller arranged on the surface of the bottom plate in sequence, each roller acts on the film, the film is first subjected to static electricity elimination, transmission tensioning, compression and tensioning, and then is wound up, the cutting knife is arranged at the front section of the compression roller, and compression is immediately performed after cutting, so that the film after cutting does not wrinkle due to uneven stress, and the winding effect is affected.
[0014] Second, the tensioning wheel is arranged between the compression wheel and the winding roller, the tensioning roller wheel is arranged in the tensioning wheel and acts on the upper surface of the film, the tensioning block and the spring are fixedly connected at the two ends of the tensioning roller wheel, the tensioning block slides along the inner wall of the guide rail, the spring ensures that the tensioning roller wheel is always in close contact with the surface of the film, the film is uniformly stressed, and better winding quality is obtained.
[0015] The other advantages, objects, and features of the present application will be apparent to those skilled in the art in view of the following detailed description, and, to that extent, are taught by the present application. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present application;
[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the present application;
[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the present application;
[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the present application;
[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the present application; Figure 4 It is a schematic diagram of the three-dimensional structure of the present application;
[0021] In the figure: 1, bottom plate; 2, static eliminator; 201, feeding roller; 3, film; 4, transmission roller; 401, bracket; 402, first transmission roller; 403, second transmission roller; 5, compression roller; 501, compression roller; 6, cutting knife; 601, bolt; 602, cutter; 603, baffle; 604, distribution block; 7, waste box; 8, winding roller; 9, tensioning roller; 901, tensioning roller; 902, tensioning block; 903, tensioning guide rail; 904, spring; 10, first motor; 11, second motor. DETAILED DESCRIPTION
[0022] As Figures 1-5 shown, the utility model provides a kind of technical scheme: a kind of film winding device for polyimide film production, including bottom plate 1, bottom plate 1 upper surface one end is fixedly connected with static eliminator 2, static eliminator 2 top end inside is movably connected with film 3, bottom plate 1 upper surface near static eliminator 2 is fixedly connected with transmission roller 4, bottom plate 1 upper surface center position is fixedly connected with compression roller 5, compression roller 5 top end two sides are fixedly connected with cutting knife 6, bottom plate 1 upper surface between transmission roller 4 and compression roller 5 is movably connected with a pair of waste box 7, bottom plate 1 upper surface another end is fixedly connected with winding roller 8, bottom plate 1 upper surface between compression roller 5 and winding roller 8 is fixedly connected with tensioning roller 9, transmission roller 4 bottom end is fixedly connected with first motor 10, winding roller 8 bottom end is fixedly connected with second motor 11, film 3 is movably connected to the outer wall of transmission roller 4, compression roller 5 and tensioning roller 9 and winding roller 8.
[0023] With the overall structure of the device, when the polyimide film is wound, the worker will pass the film to be wound 3 through the static eliminator 2 of the winding device in turn, and then the film 3 is conveyed to the transmission roller 4 after static elimination. Under the action of the transmission roller 4, the film 3 obtains preliminary tensioning, and then the film 3 is conveyed to the compression roller 5. The cutting knife 6 fixed on both sides of the compression roller 5 cuts the film 3 that exceeds the winding size. The waste after cutting automatically slides into the waste box 7 on the upper surface of the bottom plate 1. The film 3 after cutting then passes through the compression roller 5 for appropriate compression to avoid wrinkles caused by tension changes during cutting. The film 3 after passing through the compression roller 5 is conveyed to the tensioning roller 9. Under the elastic action of the tensioning roller 9, the film 3 is always close to the tensioning roller 9, and the stress is uniform. Finally, the winding roller 8 completes automatic winding under the action of the second motor 11.
[0024] As shown in Figures 1-5 The transmission roller 4 includes a support 401, the top end of the support 401 is movably connected with a first transmission roller 402 through a bearing, the middle segment of the support 401 is movably connected with a second transmission roller 403 through a bearing, the film 3 is movably connected to the outer wall of the first transmission roller 402 and the second transmission roller 403 in turn, one end of the second transmission roller 403 is movably connected to the output shaft of the first motor 10 through a belt drive, the top end of the compression roller 5 is movably connected with a pair of compression roller wheels 501 through a bearing, the film 3 is movably connected between the compression roller wheels 501, the compression roller wheels 501 are movably connected to the upper and lower surfaces of the film 3 respectively, one end of the cutting knife 6 is movably connected with a bolt 601, the cutting knife 6 is movably connected to the side of the compression roller 5 through the bolt 601, the side of the cutting knife 6 close to the bolt 601 is movably connected with a cutter 602 at the center, the cutter 602 is conical, the cutter 602 is movably connected to the lower surface of the film 3, the side of the cutting knife 6 close to the bolt 601 is movably connected with a baffle 603 at the top end, the side of the cutting knife 6 close to the bolt 601 is movably connected with a material distribution block 604 at the bottom end, and the material distribution block 604 is located directly above the waste box 7.
[0025] When the polyimide film is wound, the film 3 is driven by the transmission roller 4. First, it is close to the outer wall of the first transmission roller 402, and then it is folded and fitted to the second transmission roller 403. Under the driving force of the first motor 10, the second transmission roller 403 is driven to rotate through the belt drive, thereby driving the film 3 to drive and convey to the compression roller 5. First, the film 3 that exceeds the size will be cut off under the action of the cutter 602 on the cutting knife 6. The cut-off waste automatically slides into the waste box 7 aligned with it under the action of the material distribution block 604. Under the action of the baffle 603, the wrinkling phenomenon of the film 3 due to uneven stress during cutting is reduced. The cut film 3 is randomly fed into the compression roller 5. Under the action of the pair of compression roller wheels 501, if there are still some small wrinkles, they will be flattened, ensuring the flatness of the film 3.
[0026] AsFigures 1-5 As shown, the top end of the tension roller 9 is movably connected with a tension roller wheel 901, the two ends of the tension roller wheel 901 are fixedly connected with a tension block 902 through bearings, the top end of the tension roller 9 is fixedly connected with a tension guide rail 903 on both sides, the tension block 902 is slidingly connected to the inner wall center of the tension guide rail 903, the upper surface of the tension block 902 is fixedly connected with a spring 904, the spring 904 is movably connected to the inner center of the tension guide rail 903, the top end of the spring 904 is in abutment with the inner wall of the tension roller 9, the bottom end of the spring 904 is in abutment with the upper surface of the tension block 902, one end of the winding roller 8 is movably connected to the output shaft of the second motor 11 through a belt drive, the top end of the static electricity elimination machine 2 is fixedly connected with a feeding roller wheel 201 on both sides, and the film 3 is movably connected to the outer wall of the feeding roller wheel 201 in sequence.
[0027] After the polyimide film is cut and compressed, it basically has the condition of winding. In order to prevent the film 3 from sagging due to gravity between the compression roller 5 and the winding roller 8, the tension roller 9 is arranged between the compression roller 5 and the winding roller 8, the film 3 is attached to the outer wall of the tension roller wheel 901, and in the transmission process, since the two ends of the tension roller 9 are provided with the spring 904, the tension roller wheel 901 always keeps close to and slides up and down along the tension guide rail 903 under the action of the spring 904 with the change of the tension force, so as to prevent the film 3 from being cracked due to uneven stress, ensure the flatness and compactness of the film 3 before winding, and ensure the winding quality.
[0028] Working principle: utilize the overall structure of the device, when polyimide film winding, the operator will be wound film 3 in turn through the winding device of static eliminator 2, after static elimination film transmission to transmission roller 4, under the action of transmission roller 4 makes the film 3 obtain preliminary tension, then the film 3 transmission to the compression roller 5, fixed on both sides of the compression roller 5 cutting knife 6 on the film 3 beyond the size of the cutting, cutting after the waste automatically slide to the bottom plate 1 on the surface of the waste box 7 inside, cutting after the film 3 through the compression roller 5 for appropriate compression, avoid the wrinkles due to tension changes when cutting, after the film through the compression roller 5 transmission to the tension roller 9, under the action of the elastic tension roller 9, the film is always close to the tension roller 9, uniform stress, finally until the winding roller 8 in the second motor 11 under the action of automatic winding, when polyimide film winding, the film 3 through the transmission roller 4 for transmission, first close to the outer wall of the first transmission roller 402, then fold line fit to the second transmission roller 403, under the driving force of the first motor 10, through the transmission drive second transmission roller 403 rotation, thus driving the film 3 transmission, transmission to the compression roller 5, first film 3 beyond the size will be cut off under the action of the cutter 602 on the cutting knife 6, cutting waste under the action of the material block 604 automatically slide to the waste box 7 inside with it, under the action of the baffle 603, reduce the film 3 due to uneven stress when cutting wrinkles phenomenon, cutting film 3 into the compression roller 5 at random, under the action of a pair of compression roller 501, if there are still some small wrinkles are flattened, ensure the flatness of the film 3, after polyimide film cutting and compression, basically have winding conditions, in order to prevent the compression roller 5 and winding roller 8 between the film 3 due to gravity sag, between the compression roller 5 and winding roller 8 is provided with tension roller 9, the film 3 fit in the outer wall of the tension roller 901, in the transmission process, due to the spring 904 is provided at both ends of the tension roller 9, the tension roller 901 under the action of the spring 904 along with the tension force changes always keep close to and along the tension guide rail 903 up and down sliding, prevent the film 3 due to uneven stress appear crack, ensure the flatness, compactness of the film 3 before winding, ensure the winding quality.
[0029] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A film winding device for polyimide film production, comprising a base plate (1), characterized in that, The upper surface of the bottom plate (1) is fixedly connected with an electrostatic eliminator (2) at one end, the top end of the electrostatic eliminator (2) is movably connected with a film (3), the upper surface of the bottom plate (1) is fixedly connected with a transmission roller (4) near the electrostatic eliminator (2), the upper surface of the bottom plate (1) is fixedly connected with a pressing roller (5) at the center position, the top end of the pressing roller (5) is fixedly connected with cutting knives (6) on both sides, respectively, the upper surface of the bottom plate (1) is movably connected with a pair of waste boxes (7) between the transmission roller (4) and the pressing roller (5), the upper surface of the bottom plate (1) is fixedly connected with a winding roller (8) at the other end, the upper surface of the bottom plate (1) is fixedly connected with a tensioning roller (9) between the pressing roller (5) and the winding roller (8), the bottom end of the transmission roller (4) is fixedly connected with a first motor (10), the bottom end of the winding roller (8) is fixedly connected with a second motor (11), and the film (3) is movably connected to the outer walls of the transmission roller (4), the pressing roller (5), the tensioning roller (9) and the winding roller (8).
2. The film winding device for polyimide film production according to claim 1, characterized by: The transmission roller (4) comprises a support (401), the top end of the support (401) is movably connected with a first transmission roller (402) through a bearing, the middle segment of the support (401) is movably connected with a second transmission roller (403) through a bearing, the film (3) is movably connected to the outer walls of the first transmission roller (402) and the second transmission roller (403) in sequence, and one end of the second transmission roller (403) is movably connected to the output shaft of the first motor (10) through a belt drive.
3. The film winding device for polyimide film production according to claim 1, characterized by: The top end of the pressing roller (5) is movably connected with a pair of pressing roller wheels (501) through a bearing, the pressing roller wheels (501) are movably connected with the film (3) between them, and the pressing roller wheels (501) are movably connected to the upper and lower surfaces of the film (3), respectively.
4. The film winding device for polyimide film production according to claim 1, characterized by: One end side of the cutting knife (6) is fixedly and movably connected with a bolt (601), the cutting knife (6) is fixedly connected to the side edge of the pressing roller (5) through the bolt, a cutter (602) is fixedly connected to the side edge center of the cutting knife (6) close to the bolt (601), the cutter (602) is in the shape of a cone, the cutter (602) is movably connected to the lower surface of the film (3), a baffle (603) is fixedly connected to the top end of the side edge of the cutting knife (6) close to the bolt (601), and a material distributing block (604) is fixedly connected to the bottom end of the side edge of the cutting knife (6) close to the bolt (601), and the material distributing block (604) is located directly above the waste box (7).
5. The film winding device for polyimide film production according to claim 1, characterized by: The top end of the tensioning roller (9) is movably connected with a tensioning roller wheel (901), the tensioning roller wheel (901) is fixedly connected with a tensioning block (902) at both ends through a bearing, the top end of the tensioning roller (9) is fixedly connected with a tensioning guide rail (903) on both sides, respectively, and the tensioning block (902) is slidingly connected to the inner wall center of the tensioning guide rail (903).
6. The film winding device for polyimide film production according to claim 5, characterized by: The upper surface of the tensioning block (902) is fixedly connected with a spring (904), the spring (904) is movably connected to the inside center of the tensioning guide rail (903), the top end of the spring (904) is in contact with the inner wall of the tensioning roller (9), and the bottom end of the spring (904) is in contact with the upper surface of the tensioning block (902).
7. The film winding device for polyimide film production according to claim 1, characterized by: One end of the winding roller (8) is movably connected to the output shaft of the second motor (11) through a belt drive, and the top end of the electrostatic eliminator (2) is fixedly connected with feeding roller wheels (201) on both sides, and the film (3) is movably connected to the outer wall of the feeding roller wheels (201).