Film buffer winding device

Abstract

The utility model discloses a kind of film buffer winding device, and its technical scheme main points include rack, winding roller and driving roller one, winding roller is rotatably connected in rack, driving roller one is rotatably installed in rack, and can be rotated by driver drive;Rack is further provided with buffer groove, buffer groove is located between winding roller and driving roller one, buffer groove upper end is open, for buffering the film between winding roller and driving roller one;The upper side of driving roller one is provided with press roller, and the film around the upper side of driving roller one can be pressed tightly by press roller.The utility model has the effect that the buffer section of self-adaptive adjustment is formed, tension fluctuation is effectively absorbed and buffered, the stable and adjustable pressing force between film and driving roller is ensured, and the effect of preventing conveying slip is prevented.

Description

Technical Field

[0001] This utility model relates to the field of collection devices, and more specifically, to a thin film buffer winding device. Background Technology

[0002] In modern industrial production, films typically require multiple processing steps during production, and each step involves unwinding and rewinding the film.

[0003] During the winding process, the film is usually driven by the end winding roller to pull and transport the film. This will cause the film tension at the end conveying roller to be too high. The film with excessive tension will be directly wound outside the winding roller, resulting in the film in the final winding state maintaining a large tension. The film is wound too tightly, which will affect subsequent processing and use. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a film buffer winding device that forms an adaptively adjustable buffer section, effectively absorbs and buffers tension fluctuations, ensures a stable and adjustable clamping force between the film and the drive roller, and prevents slippage during conveying.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a film buffer winding device, comprising a frame, a winding roller, and a drive roller 1, wherein the winding roller is rotatably connected to the frame, the drive roller 1 is rotatably mounted on the frame, and can be driven to rotate by a driver; the frame is also equipped with a buffer groove, the buffer groove being located between the winding roller and the drive roller 1, the upper end of the buffer groove being open, for buffering a buffer section of the film between the winding roller and the drive roller 1; a pressure roller is mounted on the upper side of the drive roller 1, the pressure roller being able to press the film wound around the upper side of the drive roller 1.

[0006] By adopting the above scheme, the upper open-type buffer groove structure located between the take-up roller and the first drive roller forms an adaptively adjustable buffer section during the film conveying process. This effectively absorbs and compensates for tension fluctuations caused by differences in linear speed, preventing the film from stretching or breaking due to excessive tension. At the same time, the pressure roller set on the upper side of the first drive roller can stably press the film, increasing the wrap angle and friction between it and the drive roller, effectively preventing the film from slipping during high-speed conveying. Thus, the film is smoothly wound under low tension and without slippage.

[0007] The present invention is further configured such that both ends of the pressure roller are rotatably mounted on the slide block, and a telescopic rod is connected to the upper end of the slide block. The telescopic rod drives the slide block to slide up and down along the slide groove through telescopic movement.

[0008] By adopting the above scheme, the pressure roller is rotated and installed on the slide block at both ends, and the slide block is driven to slide up and down along the slide groove by the telescopic rod, thus realizing the dynamic control of the pressing force between the pressure roller and the drive roller. This structure can not only flexibly adjust the pressing force according to different film materials and process requirements to ensure that the film and the drive roller always maintain the best friction to prevent slippage, but also the slide groove guide structure ensures the stability and verticality of the pressure roller lifting process, avoiding the problem of film wrinkling or deviation caused by bias pressure.

[0009] The present invention is further configured such that the slide block is slidably mounted on the frame via a slide groove.

[0010] By adopting the above solution, the slide block is slidably installed on the frame through the slide groove, so that the pressure roller system obtains stable and reliable guiding support. The slide groove structure effectively limits the horizontal displacement and deflection of the slide block during the lifting process, ensuring that the pressure roller always moves in a straight line perpendicular to the axis of the drive roller, thereby avoiding the problem of local stress concentration and wrinkling of the film caused by the tilting or shaking of the pressure roller.

[0011] The present invention is further configured such that two sets of guide rollers are installed in the buffer tank, the guide rollers being located on both sides of the opening of the buffer tank, for guiding the film passing through the buffer tank.

[0012] By adopting the above scheme, and by setting two sets of guide rollers on both sides of the open buffer tank, the running trajectory of the film buffer section is effectively regulated. This not only prevents the film from rubbing and sticking to the tank wall in a relaxed state, but also restricts the buffer section to fluctuate smoothly within a predetermined area through the positioning effect of the guide rollers, thereby enhancing the absorption effect of film tension fluctuations. At the same time, it avoids problems such as uneven winding and surface scratches caused by film deviation or shaking.

[0013] The present invention is further configured such that a second drive roller is installed on the upper side of the take-up roller, the second drive roller is connected to the first drive roller via a transmission mechanism, the lower side of the second drive roller abuts against the outer periphery of the take-up roller, and the take-up roller is driven by the second drive roller.

[0014] By adopting the above solution, a second active roller is set on the upper side of the take-up roller to abut against it, and it is connected to the first active roller through a transmission mechanism. The power of a single drive source is synchronously transmitted to the take-up area, so that the take-up roller achieves speed matching with the front conveying system under the friction drive of the second active roller. This not only eliminates the need for a separate take-up motor and simplifies the overall structure, but also effectively eliminates the speed difference between the take-up roller and the active roller through mechanical synchronous transmission. This avoids film tension fluctuations or stretching deformation caused by speed mismatch, and improves the stability of the take-up process and the quality of the roll material.

[0015] The present invention is further configured such that the outer diameters of the first active roller and the second active roller are the same, and the first active roller and the second active roller are synchronously driven through a transmission mechanism.

[0016] By adopting the above scheme, by setting the first and second active rollers to have the same outer diameter and using a transmission mechanism to achieve synchronous transmission between them, the linear speed of the film is ensured to be completely consistent in the two key stages of conveying and winding. This eliminates film tension fluctuations, tensile deformation or surface wear caused by differences in roller speed. It not only ensures constant film tension throughout the entire transmission path, but also improves the flatness and compactness of winding, resulting in a uniform structure of the finished film roll.

[0017] The present invention is further configured such that the center of the first active roller is supported by a first rotating shaft; it also includes a connecting frame, one side of which is rotatably connected to the outer periphery of the first rotating shaft, and the other side of which extends to the upper side of the take-up roller; the second active roller is rotatably mounted on the connecting frame via the second rotating shaft.

[0018] By adopting the above scheme, one side of the connecting frame is rotatably connected to the rotating shaft of the first drive roller, and the other side extends above the take-up roller and is mounted on the rotating shaft of the second drive roller, enabling the second drive roller to perform a stable arc-shaped movement with the rotating shaft as the pivot. This design not only achieves rigid linkage between the second drive roller and the first drive roller, ensuring the stability of the transmission relationship between the two rollers, but also enables the second drive roller to press against or move away from the take-up roller, providing an adjustable and reliable pressing contact for the take-up process.

[0019] The present invention is further configured such that the transmission mechanism is a synchronous belt pulley transmission mechanism, including two synchronous pulleys and a synchronous transmission belt. The two synchronous pulleys are respectively installed on rotating shaft one and rotating shaft two, and the two synchronous pulleys are synchronously driven by the synchronous transmission belt.

[0020] By adopting the above scheme, and using a synchronous belt pulley transmission mechanism, two synchronous pulleys installed on shaft one and shaft two respectively are connected by a synchronous transmission belt, ensuring speed synchronization and power transmission between drive roller one and drive roller two; this transmission method has good buffering and shock absorption characteristics, ensuring that the film conveying and winding speeds are strictly consistent, while improving the stability and reliability of the whole machine operation and extending the service life of the transmission system.

[0021] The present invention is further configured such that a second telescopic rod is installed on the upper side of the connecting frame, and the connecting frame can rotate up and down around a first rotating shaft; a first connecting seat is installed on the connecting frame, the bottom end of the second telescopic rod is hinged to the first connecting seat, the upper end of the second telescopic rod is rotatably mounted with the second connecting seat, and the second connecting seat is rotatably mounted on the frame.

[0022] By adopting the above scheme, a stable lever-type adjustment mechanism is constructed by setting a telescopic rod two on the upper side of the connecting frame, hinged at its bottom end to the connecting seat one on the connecting frame, and rotatably mounted on the frame through the connecting seat two at its upper end. This structure enables the telescopic movement of the telescopic rod two to control the deflection angle of the connecting frame around the rotating shaft one, thereby adjusting the pressing pressure and contact state of the active roller two on the winding roller. This not only realizes the dynamic optimization and adjustment of the pressing force during the winding process to adapt to the needs of different roll diameters and film materials, but also significantly improves the adaptability and control accuracy of the equipment to the winding process.

[0023] In summary, this utility model has the following beneficial effects:

[0024] 1. By setting an open buffer groove between the drive roller and the take-up roller, the film forms an adaptively adjustable buffer section during the conveying process, which effectively absorbs and buffers tension fluctuations and prevents the film from stretching or breaking due to excessive tension.

[0025] 2. By combining the pressure roller structure with the adjustable slide, a stable and adjustable clamping force is ensured between the film and the drive roller, effectively preventing slippage during conveying.

[0026] 3. The main and driven rollers are connected by a synchronous belt drive mechanism, and the connecting frame and telescopic rod hinged to the frame are used to achieve stable pressing and transmission of the two pairs of take-up rollers of the main roller. This makes the take-up rollers synchronized with the front conveying system in terms of online speed, which simplifies the structure and ensures that the film is wound smoothly in a low-tension, slip-free state, and finally obtains a film roll with appropriate tightness and stable quality. Attached Figure Description

[0027] Figure 1 This is a perspective view of a thin film buffer winding device in this embodiment;

[0028] Figure 2 This is a cross-sectional view of a thin film buffer winding device in this embodiment.

[0029] Reference numerals: Frame 1; Drive roller 1 21; Rotary shaft 1 211; Drive roller 2 22; Rotary shaft 2 221; Connecting frame 3; Transmission mechanism 4; Pressure roller 5; Slide 51; Telescopic rod 1 52; Slide groove 53; Connecting seat 1 61; Telescopic rod 2 62; Connecting seat 2 63; Buffer groove 7; Take-up roller 8; Guide roller 9; Film 101; Buffer section 102; Driver 11. Detailed Implementation

[0030] 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.

[0031] This embodiment discloses a thin film buffer winding device, referring to... Figures 1-2 As shown, it includes a frame 1, a take-up roller 8 and a drive roller 21. The take-up roller 8 is rotatably connected to the frame 1 and can take up the film 101. The drive roller 21 is rotatably mounted on the frame 1 via a rotating shaft 211 and can be driven to rotate by a driver 11, serving as the main power source for film transport.

[0032] The frame 1 is also equipped with a buffer tank 7, which has an open upper end. The buffer tank 7 is located between the take-up roller 8 and the drive roller 21, and can accommodate the buffer section 102 formed by the film 101 between the take-up roller 8 and the drive roller 21 during the conveying process. The buffer section 102 can adaptively adjust its length according to the speed difference between take-up and conveying, and can effectively absorb and compensate for tension fluctuations caused by differences in linear speed, avoiding film stretching or breakage due to excessive tension.

[0033] To further optimize the running trajectory of the film 101 within the buffer tank 7, two sets of guide rollers 9 are installed inside the buffer tank 7. The guide rollers 9 are located on both sides of the opening of the buffer tank 7 and can guide the film 101 as it passes through the buffer tank 7. By setting two sets of guide rollers 9 on both sides of the opening of the buffer tank 7, the running trajectory of the film buffer section 102 is effectively regulated. This prevents the film 101 from rubbing and sticking to the tank wall in a relaxed state, and the positioning effect of the guide rollers 9 restricts the buffer section 102 to a predetermined area, ensuring smooth undulation and enhancing the absorption effect of tension fluctuations in the film 101. Alternatively, a correction roller or a spreading roller can be installed between the buffer tank 7 and the winding roller 8 to correct the deviation and avoid problems such as uneven winding caused by film 101 deviation or vibration. The specific configuration can be tailored to actual requirements.

[0034] The center of the drive roller 21 is supported by a rotating shaft 211. A pressure roller 5 is mounted on the upper side of the drive roller 21. Both ends of the pressure roller 5 are rotatably mounted on a slide block 51. The slide block 51 is slidably mounted on the frame 1 via a slide groove 53. A telescopic rod 52 is connected to the upper end of the slide block 51. The telescopic rod 52 drives the slide block 51 to slide up and down along the slide groove 53 through telescopic movement, thereby driving the pressure roller 5 to move up and down. When the pressure roller 5 moves downward, it can press the film 101 wrapped around the upper side of the drive roller 21.

[0035] The pressure roller 5, located on the upper side of the drive roller 21, can stably press the film 101, increase the wrap angle and friction between the film 101 and the drive roller 21, and effectively prevent the film 101 from slipping during high-speed transport. Thus, the film 101 is smoothly wound in a low-tension, slip-free state.

[0036] To further optimize the winding process, a second drive roller 22 is installed on the upper side of the winding roller 8. The outer diameters of the first drive roller 21 and the second drive roller 22 are the same. The second drive roller 22 is connected to the first drive roller 21 via a transmission mechanism 4, and the first drive roller 21 and the second drive roller 22 are synchronously driven through the transmission mechanism 4. The transmission mechanism 4 is a synchronous belt pulley transmission mechanism, including two synchronous pulleys and a synchronous transmission belt. The two synchronous pulleys are respectively installed on the first shaft 211 and the second shaft 221, and the two synchronous pulleys are synchronously driven through the synchronous transmission belt.

[0037] The transmission mechanism 4 can be implemented in various forms, as long as it can ensure synchronous transmission between the first drive roller 21 and the second drive roller 22. For example, it can be a synchronous belt drive mechanism, a chain drive mechanism, or a gear drive mechanism. By using a synchronous belt drive mechanism, the two synchronous pulleys installed on the first shaft 211 and the second shaft 221 are connected by a synchronous drive belt, ensuring speed synchronization and power transmission between the first drive roller 21 and the second drive roller 22.

[0038] By setting the first drive roller 21 and the second drive roller 22 to have the same outer diameter and using the transmission mechanism 4 to achieve synchronous transmission between them, the linear speed of the film 101 is ensured to be completely consistent in the two key stages of conveying and winding. This eliminates film tension fluctuations, tensile deformation, or surface wear caused by differences in roller speeds. It not only ensures that the tension of the film 101 is constant throughout the entire transmission path but also improves the flatness and compactness of the winding, resulting in a uniform structure of the finished film roll. That is, the input speed on the right side of the buffer slot 7 and the output speed on the left side tend to be basically consistent, thereby maintaining a stable buffer length in the buffer slot 7.

[0039] The lower side of the second drive roller 22 abuts against the outer periphery of the take-up roller 8, and the take-up roller 8 is driven by the second drive roller 22. By setting the second drive roller 22 abutting against the upper side of the take-up roller 8 and connecting it to the first drive roller 21 through the transmission mechanism 4, the power of a single drive source is synchronously transmitted to the take-up area, so that the take-up roller 8 achieves speed matching with the forward conveying system under the friction drive of the second drive roller 22.

[0040] This device also includes a connecting frame 3, one side of which is rotatably connected to the outer periphery of the rotating shaft 211, and the other side of the connecting frame 3 extends to the upper side of the take-up roller 8. (Refer to...) Figure 2As shown, the connecting frame 3 can rotate and adjust around the right-side pivot 211, and the left side of the connecting frame 3 can be adjusted up and down; there is no rotational linkage between the connecting frame 3 and the pivot 211, and their rotations do not interfere with each other.

[0041] The second drive roller 22 is rotatably mounted on the connecting frame 3 via the second rotating shaft 221. The connecting frame 3 connects the first drive roller 21 and the second drive roller 22. By rotatably connecting one side of the connecting frame 3 to the first rotating shaft 211 of the first drive roller 21, and extending the other side above the take-up roller 8 and mounting the second rotating shaft 221 of the second drive roller 22, the second drive roller 22 can perform a stable arc-shaped movement with the first rotating shaft 211 as the pivot, ensuring that the transmission relationship between the second drive roller 22 and the first drive roller 21 remains stable at all times.

[0042] This design not only achieves rigid linkage between the second active roller 22 and the first active roller 21, ensuring the stability of the transmission relationship between the two rollers, but also enables the second active roller 22 to press against or move away from the take-up roller 8, providing an adjustable and reliable pressing contact for the take-up process.

[0043] To further enhance control over the winding process, a telescopic rod 62 is installed on the upper side of the connecting frame 3. The telescopic rod 62 can extend and retract vertically, thereby driving the connecting frame 3 to rotate vertically around the pivot 211. A connecting seat 61 is installed on the connecting frame 3. The bottom end of the telescopic rod 62 is hinged to the connecting seat 61. A connecting seat 63 is rotatably installed on the upper end of the telescopic rod 62. The connecting seat 63 is rotatably installed on the frame 1, forming an adjustable mechanism.

[0044] By setting a telescopic rod 62 on the upper side of the connecting frame 3, with its bottom end hinged to the connecting seat 61 on the connecting frame 3 and its upper end rotatably mounted on the frame 1 via the connecting seat 63, a stable lever-type adjustment mechanism is constructed. This structure enables the telescopic movement of the telescopic rod 62 to control the deflection angle of the connecting frame 3 around the rotating shaft 211, thereby adjusting the pressing pressure and contact state of the active roller 22 on the winding roller 8. This not only realizes the dynamic optimization and adjustment of the pressing force during the winding process to adapt to the needs of different roll diameters and film materials, but also improves the adaptability and control accuracy of the equipment to the winding process.

[0045] This device, through the organic combination of the buffer groove 7 structure with the pressure roller 5 and the dual active roller synchronous transmission system, realizes tension buffering, anti-slip control and speed synchronization of the film 101 during the conveying and winding process. It effectively solves the problems of film breakage, excessively tight winding or uneven tension caused by the lack of effective tension buffering and transmission coordination in traditional winding devices, and improves the winding quality and the stability of equipment operation.

[0046] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A thin film buffer winding device, characterized in that, The assembly includes a frame (1), a take-up roller (8), and a drive roller (21). The take-up roller (8) is rotatably connected to the frame (1), and the drive roller (21) is rotatably mounted on the frame (1) and can be driven to rotate by a driver (11). The frame (1) is also equipped with a buffer groove (7), which is located between the take-up roller (8) and the drive roller (21). The upper end of the buffer groove (7) is open and is used to buffer the buffer section (102) of the film (101) between the take-up roller (8) and the drive roller (21). A pressure roller (5) is installed on the upper side of the drive roller (21), which can press the film (101) wrapped around the upper side of the drive roller (21).

2. The thin film buffer winding device according to claim 1, characterized in that, The two ends of the pressure roller (5) are rotatably mounted on the slide block (51). The upper end of the slide block (51) is connected to a telescopic rod (52). The telescopic rod (52) drives the slide block (51) to slide up and down along the slide groove (53) through telescopic movement.

3. The thin film buffer winding device according to claim 2, characterized in that, The slide block (51) is slidably mounted on the frame (1) via the slide groove (53).

4. The thin film buffer winding device according to claim 1, characterized in that, Two sets of guide rollers (9) are installed in the buffer tank (7). The guide rollers (9) are located on both sides of the opening of the buffer tank (7) and are used to guide the film (101) passing through the buffer tank (7).

5. A thin film buffer winding device according to claim 1, characterized in that, The upper side of the take-up roller (8) is equipped with a second active roller (22), which is connected to the first active roller (21) via a transmission mechanism (4). The lower side of the second active roller (22) abuts against the outer periphery of the take-up roller (8), and the take-up roller (8) is driven by the second active roller (22).

6. A thin film buffer winding device according to claim 5, characterized in that, The outer diameters of the first active roller (21) and the second active roller (22) are the same, and the first active roller (21) and the second active roller (22) are synchronously driven by the transmission mechanism (4).

7. A thin film buffer winding device according to claim 5, characterized in that, The center of the first active roller (21) is supported by the first rotating shaft (211); it also includes a connecting frame (3), one side of which is rotatably connected to the outer periphery of the first rotating shaft (211), and the other side of which extends to the upper side of the take-up roller (8). The second active roller (22) is rotatably mounted on the connecting frame (3) via the second rotating shaft (221).

8. A thin film buffer winding device according to claim 7, characterized in that, The transmission mechanism (4) is a synchronous belt pulley transmission mechanism, including two synchronous pulleys and a synchronous transmission belt. The two synchronous pulleys are respectively installed on shaft one (211) and shaft two (221), and the two synchronous pulleys are synchronously driven by the synchronous transmission belt.

9. A thin film buffer winding device according to claim 7, characterized in that, The upper side of the connecting frame (3) is equipped with a telescopic rod two (62), and the connecting frame (3) can rotate up and down around the rotating shaft one (211); the connecting frame (3) is equipped with a connecting seat one (61), the bottom end of the telescopic rod two (62) is hinged to the connecting seat one (61), the upper end of the telescopic rod two (62) is rotatably equipped with a connecting seat two (63), and the connecting seat two (63) is rotatably installed on the frame (1).

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