A front sheet material whole body winding mechanism

Abstract

The utility model discloses a kind of roll-up front sequence sheet material sorting mechanism, mainly related to sheet material roll-up technical field.It is sequentially arranged in the fixed roller frame and the deviation rectification roller frame along the sheet material conveying direction, the deviation rectification roller frame side away from the fixed roller frame is used to install the winding roll of roll-up winding material, the position of deviation rectification roller frame is adjustable to sheet material width direction, fixed roller frame is fixedly installed on ground, fixed roller frame is installed with positioning roller, guide roller and tension adjusting mechanism;Guide roller and positioning roller are arranged in parallel up and down, and tension adjusting mechanism is placed below positioning roller and close to deviation rectification roller frame side, and tension adjusting mechanism includes swing arm that top is hinged with fixed roller frame, the bottom of swing arm is installed with adjusting roller, low friction air cylinder and adjusting cylinder rod are also installed on fixed roller frame, and the end of adjusting cylinder rod is hinged with swing arm.The utility model has the beneficial effect that: tension and deviation rectification adjustment are carried out to sheet material before roll-up, improve winding material quality, reduce waste roll rate.

Description

Technical Field

[0001] This utility model relates to the field of sheet winding technology, specifically a sheet preparation mechanism for pre-winding winding. Background Technology

[0002] After the sheet processing is completed, it usually needs to be wound onto a core for subsequent processing or stored as a finished product. Most existing sheet winding equipment uses automated winding machines to complete continuous winding. With the increasingly widespread application of films, customers have higher and higher requirements for film roll quality. The film surface must be flat, the roll ends neat, and defects such as wrinkles, creases, and indentations are not allowed. Many factors contribute to these defects, mainly concentrated in the winding process. For example, as winding progresses, the roll diameter gradually increases, and the tension distribution of the film changes, leading to different tension angles during winding, which may cause wrinkles, edge curling, or uneven ends. Furthermore, during winding, due to uneven traction speed, uneven tension, or uneven film thickness, the film is prone to lateral movement or unidirectional deviation, causing misalignment and resulting in wrinkles or uneven ends. Therefore, ensuring neatness during the winding process directly affects the final product quality and waste. Utility Model Content

[0003] The purpose of this invention is to provide a pre-winding sheet material straightening mechanism that can adjust the tension and deviation of the sheet material before winding, thereby improving the quality of the roll material and reducing the scrap rate.

[0004] To achieve the above objectives, this utility model employs the following technical solution:

[0005] A pre-winding sheet material preparation mechanism includes a fixed roller frame and a correction roller frame arranged sequentially along the sheet conveying direction. The side of the correction roller frame away from the fixed roller frame is used to install a winding roller for winding the sheet. The position of the correction roller frame relative to the width direction of the sheet is adjustable. The fixed roller frame is fixedly installed on the ground. The fixed roller frame is equipped with a positioning roller, a guide roller, and a tension adjustment mechanism.

[0006] The guide roller and the positioning roller are arranged side by side, and the tension adjustment mechanism is located below the positioning roller and close to the side of the correction roller frame. The tension adjustment mechanism includes a swing arm whose top end is hinged to the fixed roller frame. An adjustment roller is installed at the bottom end of the swing arm. A low-friction cylinder is also installed on the fixed roller frame. An adjustment cylinder rod is fitted on the low-friction cylinder. The end of the adjustment cylinder rod is hinged to the swing arm.

[0007] The fixed roller frame includes upright, oppositely arranged side plate frames. The swing arms are in two sets and symmetrically arranged on the inner side of the side plates. A connecting rod is provided between the swing arms to fix them together. The bottom end of the swing arms is provided with a horizontally extending mounting shaft. The adjusting roller is rotatably mounted between the two mounting shafts.

[0008] The tension adjustment mechanism also includes a fixed seat fixedly installed in the middle of the side plate frame. A support is provided protruding on the fixed seat and extends horizontally towards the material receiving side. The low-friction cylinder is installed on the support.

[0009] The support has a horizontally extending strip-shaped hole through it, and an adjusting shaft passes through the strip-shaped hole. The portion of the adjusting shaft located inside the strip-shaped hole is provided with an adjusting slider that is adapted to the width of the strip-shaped hole. The adjusting shaft is also provided with an annular baffle located inside the adjusting slider. The diameter of the annular baffle is larger than the width of the strip-shaped hole. The outer end of the adjusting shaft is provided with a locking nut that is threadedly connected to it. The inner end of the adjusting shaft is rotatably mounted with a swing seat. The tail end of the low-friction cylinder is fixed on the swing seat.

[0010] The fixed roller frame is also equipped with a lower support roller and an upper support roller. The lower support roller is installed below the positioning roller and is set lower than the adjusting roller. The upper support roller is arranged horizontally and side by side with the guide roller and is set closer to the side of the correction roller frame.

[0011] A linear guide rail is provided below the straightening roller frame. The length direction of the linear guide rail is consistent with the width direction of the sheet. A support slider is slidably fitted on the linear guide rail. The support slider is fixed to the bottom of the straightening roller frame. An L-shaped base fixed to the ground is also provided on one side of the straightening roller frame. A straightening cylinder is provided on the base. A straightening cylinder rod is telescopically fitted on the side of the straightening roller frame near the straightening roller frame. The telescopic direction of the straightening cylinder rod is consistent with the width direction of the sheet. The inner end of the straightening cylinder rod is fixed to the straightening roller frame.

[0012] An expansion roller is installed at the center of the side of the correction roller frame near the fixed roller frame.

[0013] The alignment roller frame includes two upright and symmetrically arranged vertical plates. The bottom side of each vertical plate has a base plate fixedly connected to the bottom side of the two plates. The top side of each vertical plate has a downwardly extending notch. Lifting guide rails are installed and fixed on both sides of the notch. Lifting sliders are slidably fitted on the lifting guide rails. A lifting plate is provided between the two lifting sliders on the same side. A connecting plate is fixedly connected to the bottom side of the two lifting plates. An adaptation roller installed between the lifting plates is provided above the connecting plate. A lifting cylinder is fixed to the alignment roller frame below the connecting plate. A support cylinder rod is fitted to the top of the lifting cylinder. The top of the support cylinder rod is fixed to the bottom surface of the connecting plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] With this device, when the sheet material is finished and needs to be rolled into a film roll for the final process, the sheet material is rolled up after passing through the fixed roller frame and the correction roller frame in sequence. Before being rolled up, the lateral position is corrected and balanced by moving laterally. The tension is adjusted by adjusting the swing of the roller, thereby sorting the sheet material before winding, improving the winding quality and reducing the waste roll rate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of Embodiment 1 of the present invention.

[0017] Figure 2 This is a side view of the internal structure of Embodiment 2 of this utility model.

[0018] Figure 3 This is a schematic diagram of Embodiment 2 of the present invention.

[0019] Figure 4 This is a schematic diagram of Embodiment 2 of the present invention.

[0020] Figure 5 This is a structural schematic diagram of the low-friction cylinder mounting position of this utility model.

[0021] The labels shown in the attached diagram:

[0022] 1. Side plate frame; 2. Lower support roller; 3. Positioning roller; 4. Guide roller; 5. Swing arm; 6. Connecting rod; 7. Adjusting roller; 8. Fixed seat; 9. Support; 10. Strip hole; 11. Adjusting shaft; 12. Adjusting slider; 13. Annular baffle; 14. Locking nut; 15. Low friction cylinder; 16. Vertical plate; 17. Base plate; 18. Linear guide rail; 19. Correction cylinder; 20. Mounting frame; 21. Lifting guide rail; 22. Lifting plate; 23. Connecting plate; 24. Adaptation roller; 25. Lifting cylinder; 26. Swing seat; 27. Spreading roller. Detailed Implementation

[0023] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined in this application.

[0024] Example 1:

[0025] The example is mainly used to pre-process the sheets before they enter the film winding process, thereby improving the neatness and quality of the film winding process.

[0026] The specific structure includes:

[0027] The fixed roller frame and the straightening roller frame are used to load various functional rollers, respectively.

[0028] This device is installed between the completion of sheet processing and the final winding into a film roll. To avoid ambiguity, the end closer to the final winding equipment is designated as the de-feeding side, and the opposite direction (closer to the sheet processing equipment) is designated as the receiving side. The fixed roller frame is positioned closer to the receiving side, and the guiding roller frame is positioned closer to the de-feeding side. The fixed roller frame and the guiding roller frame are arranged side by side with corresponding widths.

[0029] The bottom of the fixed roller frame is fixedly installed on the ground, and the fixed roller frame is rotatably equipped with a lower support roller 2, a positioning roller 3, a guide roller 4, an upper support roller, and a tension adjustment mechanism.

[0030] Specifically, the fixed roller frame includes upright, oppositely arranged side plate frames 1, with an installation width between the side plate frames 1, for installing the aforementioned rollers and mechanisms.

[0031] The lower support roller 2, positioning roller 3, guide roller 4, upper support roller, and tension adjustment mechanism are all installed between the two side plate frames 1, and are arranged in parallel with corresponding lengths.

[0032] The upper idler roller and guide roller 4 are positioned at the same height on the upper part of the fixed roller frame. The axes of the upper idler roller and guide roller 4 are parallel to each other on a horizontal plane. The upper idler roller is positioned close to the correction roller frame, and the guide roller 4 is positioned close to the material receiving side. The sheet material first passes over the upper circumference of the guide roller 4 to assist in the sheet material's turning, while the upper idler roller supports the sheet material to prevent excessive sagging during long-distance transport. Therefore, the circumference of the upper idler roller mates with the sheet material.

[0033] The axes of the lower support roller 2 and the guide roller 4 are aligned vertically. The lower support roller 2 is located below the guide roller 4. The lower support roller 2 is used to lift the conveyed sheet to prevent the sheet from falling to the bottom surface and getting dirty. Therefore, the sheet passes over the upper surface of the lower support roller 2.

[0034] The tension adjustment mechanism is located between the upper idler / guide roller 4 and the lower idler roller 2, that is, it is installed in the middle of the fixed roller frame.

[0035] The tension adjustment mechanism includes swing arms 5 symmetrically arranged on the inner side of the side plate frame 1, and a connecting rod 6 is provided between the swing arms 5 to fix them together, so that the two swing arms 5 can be synchronized.

[0036] The bottom end of the swing arm 5 is provided with a horizontally extending mounting shaft, and an adjusting roller 7 is rotatably sleeved between the mounting shafts on both sides. The swing arm 5 is also provided with a hinge position located above the mounting shaft.

[0037] The tension adjustment mechanism also includes a fixed seat 8 fixedly installed in the middle of the side plate frame 1. The fixed seat 8 is fixed to the side plate frame 1 near the material receiving side by bolts. A support 9 protrudes from the fixed seat 8 and extends horizontally towards the material receiving side. A horizontally extending strip-shaped hole 10 passes through the support 9. An adjusting shaft 11 passes through the strip-shaped hole 10. The portion of the adjusting shaft 11 located inside the strip-shaped hole 10 is provided with an adjusting slider 12 adapted to the width of the strip-shaped hole 10. An annular baffle 13 located inside the adjusting slider 12 is also provided on the adjusting shaft 11. The diameter of the annular baffle 13 is larger than the width of the strip-shaped hole 10. A locking nut 14 is threadedly connected to the outer end of the adjusting shaft 11. By tightening the locking nut 14 on the outer end of the adjusting shaft 11, it can cooperate with the annular baffle 13 to limit the relative position of the adjusting shaft 11. After locking, the adjusting shaft 11 remains stationary. Based on the above structure, the distance between the adjusting shaft 11 and the swing arm 5 is adjustable.

[0038] The inner end of the adjusting shaft 11 is rotatably mounted with a swing seat 26. A low-friction cylinder 15 is fixedly mounted on the swing seat 26. An adjusting cylinder rod is telescopically engaged at the end of the low-friction cylinder 15 away from the swing seat 26. The end of the adjusting cylinder rod is hinged to the hinge position.

[0039] The low-friction cylinder 15 has exceptionally low sliding resistance, allowing it to respond sensitively to even slight pressure changes with virtually no lag. This enables precise tension adjustment, ensuring stable sheet tension during production. For example, during winding, even if the outer diameter of the winding wheel changes, the low-friction cylinder 15 maintains a relatively constant clamping force between the drive wheel and the winding wheel.

[0040] The positioning roller 3 is installed below the guide roller 4. The axes of the positioning roller 3 and the guide roller 4 are aligned in the vertical direction, and the positioning roller 3 is located above the adjusting roller 7. The sheet material passing over the adjusting roller 7 is guided by the positioning roller 3, so that the sheet material is in a vertical conveying state between the positioning roller 3 and the guide roller 4, and the tension of the sheet material is effectively adjusted by the adjusting roller 7.

[0041] The straightening roller frame includes two upright and symmetrically arranged vertical plates 16. The distance between the vertical plates 16 corresponds to the distance between the side plate frames 1. The bottom side of the vertical plates 16 is provided with a base plate 17 that is fixedly connected to the bottom side of the two plates. The base plate 17 adopts an I-shaped design to save materials and reduce weight.

[0042] The straightening roller frame has a rotatable spreading roller 27 mounted at the middle of its height. Based on its proximity to the winding position, the bottom circumferential surface of the spreading roller 27 cooperates with the sheet to allow the sheet to fully expand.

[0043] A linear guide rail 18 is symmetrically arranged below the base plate 17. The linear guide rails 18 are respectively positioned below the upright plate 16. The length direction of the linear guide rail 18 corresponds to the length direction of the base plate 17, i.e., it is consistent with the width direction of the sheet material. A support slider is slidably fitted onto the linear guide rail 18. The top of the support slider is fixed to the base plate 17 by bolts or other fasteners, enabling adjustment of the alignment roller frame along the width direction of the sheet material. An L-shaped base fixed to the ground is also provided on one side of the alignment roller frame. An alignment cylinder 19 is fixed on the base. An alignment cylinder rod is telescopically fitted to the side of the alignment cylinder 19 closest to the alignment roller frame. The telescopic direction of the alignment cylinder rod is consistent with the width direction of the sheet material. The inner end of the alignment cylinder rod is fixed to the alignment roller frame, thus making the position of the entire alignment roller frame adjustable relative to the width direction of the sheet material.

[0044] The take-up roll can be mounted on the correction roll frame. A mounting frame 20 is provided on the side of the correction roll frame away from the fixed roll frame. The mounting frame 20 is used to mount the take-up roll. The take-up roll can be any powered roll of the prior art.

[0045] Under current technology, film winding methods can generally be divided into three types: the first is surface winding, where the power for the film roll to rotate comes from the surface friction roller that contacts the surface of the film roll, and the surface friction roller is directly driven by the friction roller motor; the second is center winding, where the power for the film roll to rotate comes from the winding shaft located at the center of the film roll, and the winding shaft is directly driven by the winding motor; the third is composite winding (friction winding + center auxiliary winding). These are all common existing winding processes. This equipment can use the second type, center winding winding roller, which has its own winding power.

[0046] Example 2:

[0047] This example, based on Example 1, further enhances the adaptation to the opening angle.

[0048] A downwardly extending notch is provided on the top side of the upright plate 16, and lifting guide rails 21 are installed and fixed on both sides of the notch. The notch is located between the mounting frame 20 and the spreading roller 27.

[0049] The lifting guide rail 21 is slidably fitted with a lifting slider, and a lifting plate 22 is provided in the notch. The lifting slider is fixed on both sides of the lifting plate 22 to guide the lifting stroke of the lifting plate 22. The bottom sides of the two lifting plates 22 are provided with connecting plates 23 that are fixedly connected to them. The connecting plates 23 and the lifting plates 22 form an integral structure in the shape of a "U".

[0050] An adapting roller 24 is provided above the connecting plate 23. The two ends of the adapting roller 24 are rotatably connected to the lifting plate 22 on the same side. The top circumference of the adapting roller 24 is used to wrap around the sheet and to lift the sheet upward.

[0051] Below the notch is a mounting platform fixed to the correction roller frame. A lifting cylinder 25 is fixed on the mounting platform. A support cylinder rod is fitted to the top of the lifting cylinder 25. The top of the support cylinder rod is fixed to the bottom surface of the connecting plate 23. The height of the adapting roller 24 can be adjusted by the lifting cylinder 25, so that after the sheet is lifted by the adapting roller 24, it is wound up. As the film roll gradually thickens, when the angle between the sheet and the film roll changes, the height of the adapting roller 24 is raised to keep the angle of the sheet consistent during winding, thereby obtaining a high-quality film roll.

[0052] With this device, when the sheet material (taking a filter membrane as an example) needs to be rolled up as the final process after processing, the sheet material is rolled up after passing through the fixed roller frame and the straightening roller frame in sequence. The process is as follows:

[0053] The sheet passes over the upper surface of the lower support roller 2, and its conveying tension is adjusted by the adjusting roller 7. Then, it is pulled upward vertically by the positioning roller 3. The conveying direction is changed by the guide roller 4 (from vertical conveying from bottom to top to horizontal conveying forward). The sheet is then gently supported by the upper surface of the upper support roller, and then enters the spreading roller 27 of the correction roller frame. Finally, it passes over the top surface of the adapting roller 24 and is wound into a film roll by the winding roller.

[0054] The tension adjustment mechanism provides highly sensitive tension control. By moving and adjusting the width of the alignment roller frame, the alignment of the film roll and film sheet can be automatically adjusted, preventing uneven winding and waste rolls. The gradually rising adaptation roller 24 can adapt to changes in tension angle as the roll diameter increases. This comprehensive adjustment of the winding process improves roll quality and reduces waste roll rate.

Claims

1. A pre-winding sheet forming mechanism, characterized in that, The device includes a fixed roller frame and a correction roller frame arranged sequentially along the sheet conveying direction. The side of the correction roller frame away from the fixed roller frame is used to install a take-up roller for winding the sheet. The position of the correction roller frame relative to the width of the sheet is adjustable. The fixed roller frame is fixedly installed on the ground. The fixed roller frame is equipped with a positioning roller, a guide roller, and a tension adjustment mechanism. The guide roller and the positioning roller are arranged side by side, one above the other. The tension adjustment mechanism is located below the positioning roller and close to the correction roller frame. The tension adjustment mechanism includes a swing arm whose top end is hinged to the fixed roller frame. An adjustment roller is installed at the bottom end of the swing arm. A low-friction cylinder is also installed on the fixed roller frame. An adjustment cylinder rod is fitted on the low-friction cylinder. The end of the adjustment cylinder rod is hinged to the swing arm.

2. The pre-winding sheet forming mechanism according to claim 1, characterized in that, The fixed roller frame includes upright, oppositely arranged side plate frames. The swing arms are in two sets and symmetrically arranged on the inner side of the side plates. A connecting rod is provided between the swing arms to fix them together. The bottom end of the swing arms is provided with a horizontally extending mounting shaft. The adjusting roller is rotatably mounted between the two mounting shafts.

3. The pre-winding sheet forming mechanism according to claim 2, characterized in that, The tension adjustment mechanism also includes a fixed seat fixedly installed in the middle of the side plate frame. A support is provided protruding on the fixed seat and extends horizontally towards the material receiving side. The low-friction cylinder is installed on the support.

4. The pre-winding sheet forming mechanism according to claim 3, characterized in that, The support has a horizontally extending strip-shaped hole through it, and an adjusting shaft passes through the strip-shaped hole. The portion of the adjusting shaft located inside the strip-shaped hole is provided with an adjusting slider that is adapted to the width of the strip-shaped hole. The adjusting shaft is also provided with an annular baffle located inside the adjusting slider. The diameter of the annular baffle is larger than the width of the strip-shaped hole. The outer end of the adjusting shaft is provided with a locking nut that is threadedly connected to it. The inner end of the adjusting shaft is rotatably mounted with a swing seat. The tail end of the low-friction cylinder is fixed on the swing seat.

5. The pre-winding sheet forming mechanism according to claim 1, characterized in that, The fixed roller frame is also equipped with a lower support roller and an upper support roller. The lower support roller is installed below the positioning roller and is set lower than the adjusting roller. The upper support roller is arranged horizontally and side by side with the guide roller and is set closer to the side of the correction roller frame.

6. The pre-winding sheet forming mechanism according to claim 1, characterized in that, A linear guide rail is provided below the straightening roller frame. The length direction of the linear guide rail is consistent with the width direction of the sheet. A support slider is slidably fitted on the linear guide rail. The support slider is fixed to the bottom of the straightening roller frame. An L-shaped base fixed to the ground is also provided on one side of the straightening roller frame. A straightening cylinder is provided on the base. A straightening cylinder rod is telescopically fitted on the side of the straightening roller frame near the straightening roller frame. The telescopic direction of the straightening cylinder rod is consistent with the width direction of the sheet. The inner end of the straightening cylinder rod is fixed to the straightening roller frame.

7. The pre-winding sheet forming mechanism according to claim 1, characterized in that, An expansion roller is installed at the center of the side of the correction roller frame near the fixed roller frame.

8. The pre-winding sheet forming mechanism according to claim 1, characterized in that, The alignment roller frame includes two upright and symmetrically arranged vertical plates. The bottom side of each vertical plate has a base plate fixedly connected to the bottom side of the two plates. The top side of each vertical plate has a downwardly extending notch. Lifting guide rails are installed and fixed on both sides of the notch. Lifting sliders are slidably fitted on the lifting guide rails. A lifting plate is provided between the two lifting sliders on the same side. A connecting plate is fixedly connected to the bottom side of the two lifting plates. An adaptation roller installed between the lifting plates is provided above the connecting plate. A lifting cylinder is fixed to the alignment roller frame below the connecting plate. A support cylinder rod is fitted to the top of the lifting cylinder. The top of the support cylinder rod is fixed to the bottom surface of the connecting plate.

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