Winding device for thin film

Abstract

The utility model relates to a film winding device which comprises a rack, a guide roller, a winding roller and a tension adjusting assembly are arranged on the rack, the tension adjusting assembly comprises an upper tensioning roller and a lower tensioning roller, the upper tensioning roller and the lower tensioning roller are both slidably connected with the rack, an adjusting assembly is arranged on the rack and comprises a moving plate and an adjusting part, and the moving plate is movably connected with the adjusting part. The movable plate is connected with the upper tensioning roller, and a driving part is arranged on the rack; a film is conveyed through the guide roller, wound around the lower tensioning roller and the upper tensioning roller to be tensioned and wound through the winding roller, the driving part drives the moving plate to slide, the moving plate adjusts the position of the upper tensioning roller and meanwhile adjusts the position of the lower tensioning roller through the adjusting part, and the upper tensioning roller and the lower tensioning roller move reversely to adjust the tension of the film. The film winding device has the effects of synchronously driving and adjusting tension during winding and reducing film damage.

Description

Technical Field

[0001] This application relates to the field of film production equipment, and more particularly to a film winding device. Background Technology

[0002] Low heat shrink film is a special type of heat shrink film, whose main characteristic is that it can shrink at relatively low temperatures.

[0003] Among related technologies, a film winding roller device with authorization announcement number CN104609229B can be referenced. It includes a guide roller, a first winding roller, a second winding roller, and a cutting device. It also includes a bracket with a bidirectional rotating conversion roller inside the bracket. The first winding roller and the second winding roller are detachably installed inside the conversion roller. It realizes the full automation of film winding and changing, effectively improves the winding success rate, and reduces product loss.

[0004] As the amount of film wound on the take-up roller gradually increases, the film winding tension changes. The aforementioned related technologies do not adjust the film tension, which can lead to film deformation or even damage. Utility Model Content

[0005] To address the problem of deformation and damage caused by unadjusted tension during film winding, this application provides a film winding device.

[0006] The film winding device provided in this application adopts the following technical solution:

[0007] A film winding device includes a frame, on which guide rollers for transporting film and winding rollers for winding film are disposed. A tension adjusting assembly is disposed on the frame, comprising an upper tension roller and a lower tension roller distributed parallel to the guide rollers. Both ends of the upper and lower tension rollers are slidably connected to the frame. An adjusting assembly is disposed on the frame, comprising a movable plate and an adjusting member slidably mounted on the frame in a direction perpendicular to the axis of the guide rollers. The movable plate is connected to the upper tension roller, and the adjusting member is disposed on the frame and connected to the movable plate. The adjusting member drives the lower tension roller to move in a direction opposite to the moving direction of the upper tension roller. A driving member is disposed on the frame to drive the movable plate to slide.

[0008] By adopting the above technical solution, the film is transported by guide rollers, tensioned around the lower tension roller and the upper tension roller, and wound up by the take-up roller. The drive unit drives the moving plate to slide, and the moving plate adjusts the position of the upper tension roller. At the same time, the moving plate adjusts the position of the lower tension roller through the adjustment unit. The upper tension roller and the lower tension roller move in opposite directions to adjust the tension of the film. The tension can be adjusted synchronously during winding, reducing the probability of damaging the film.

[0009] Optionally, the driving component includes a drive motor and a drive screw that is perpendicular to the guide roller. A mounting bracket is provided on one side of the frame. The drive screw is rotatably mounted on the mounting bracket. The drive motor is located on one side of the mounting bracket. The drive screw is connected to the output shaft of the drive motor. A connecting plate is slidably mounted on the mounting bracket. The connecting plate is threadedly connected to the drive screw. The movable plate is connected to one side of the connecting plate.

[0010] By adopting the above technical solution, the drive motor drives the drive screw to rotate, which in turn drives the connecting plate to move. The connecting plate synchronously drives the sliding plate to slide, making the sliding operation of the driving plate convenient.

[0011] Optionally, the adjusting component includes a gear and a second rack. The gear is rotatably mounted on the frame, and the rotation axis of the gear is parallel to the axis of the guide roller. The second rack is slidably mounted on the frame and meshes with one side of the gear. The second rack is connected to one end of the lower tension roller. A first rack is provided on one side of the moving plate along the length of the moving plate, and the first rack meshes with the side of the gear opposite to the second rack.

[0012] By adopting the above technical solution, when the moving plate slides, the first rack on one side of the moving plate drives the gear to rotate, and the gear drives the second rack on the opposite side to move in the opposite direction, which synchronously drives the lower tension roller to move and adjust the tension, and synchronously drives and adjusts the upper tension roller and the lower tension roller on both sides.

[0013] Optionally, the mounting bracket is provided with a guide groove along the length direction of the drive screw, and the connecting plate is provided with a slider, which is slidably mounted at the guide groove of the mounting bracket.

[0014] By adopting the above technical solution, when the connecting plate slides, the slider slides along the guide groove of the mounting frame to guide the movement of the connecting plate.

[0015] Optionally, the upper tensioning roller is rotatably connected to both ends of an upper connecting block, and the frame is provided with an upper sliding groove for the upper connecting block to slide. The upper connecting block is connected to the moving plate. The lower tensioning roller is rotatably connected to both ends of a lower connecting block, and the frame is provided with a lower sliding groove for the lower connecting block to slide. The lower connecting block is connected to one side of the second rack, and the lower sliding groove and the upper sliding groove are distributed parallel to each other.

[0016] By adopting the above technical solution, when the upper tensioning roller moves, the upper connecting block slides along the upper sliding groove, and when the lower tensioning roller moves, the lower connecting block slides along the lower sliding groove. The parallel upper and lower sliding grooves guide and limit the movement direction of the upper and lower tensioning rollers.

[0017] Optionally, a moving groove is formed on the moving plate, and the moving groove is distributed in a position corresponding to the upper sliding groove. The end of the upper connecting block away from the upper tensioning roller passes through the upper sliding groove and is slidably installed at the moving groove of the moving plate. Springs are provided on the opposite two sides of the upper connecting block, and the springs are connected to the moving plate.

[0018] By adopting the above technical solution, when the upper connecting block is subjected to the pressure of the film pulling, the upper connecting block slides in the moving groove. At this time, the springs on both sides elastically limit the upper connecting block, and the upper tensioning roller elastically tensions the film, reducing the probability of damaging the film.

[0019] Optionally, a limiting plate is slidably installed on the movable plate at the movable groove, an adjusting screw is rotatably installed on the movable plate, one end of the limiting plate is rotatably connected to the adjusting screw, and one end of the spring away from the upper connecting block is connected to one side of the limiting plate.

[0020] By adopting the above technical solution, rotating the adjusting screw adjusts the position of the limiting plate, thereby adjusting the compression of the spring and further adjusting the tension.

[0021] Optionally, a pressure frame is rotatably mounted on the frame, and a pressure roller is rotatably mounted on the pressure frame, which is distributed parallel to the take-up roller. The outer circumferential wall of the pressure roller is in contact with one side of the film on the take-up roller.

[0022] By adopting the above technical solution, the pressure roller on the press frame presses one side of the film tightly onto the winding roller, making it less likely for the film to loosen during winding.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. The driving component drives the moving plate to slide, and the moving plate adjusts the position of the upper tension roller. At the same time, the moving plate adjusts the position of the lower tension roller via the adjusting component. The upper and lower tension rollers move in opposite directions to adjust the tension of the film. This can drive and adjust the tension synchronously during winding, reducing the probability of damaging the film.

[0025] 2. The upper tensioning roller provides elastic tension to the film. By rotating the adjusting screw, the position of the limiting plate is adjusted, thereby adjusting the compression of the spring and further adjusting the tension.

[0026] 3. The pressure rollers on the pressure frame press one side of the film firmly against the take-up roller, making it less likely for the film to loosen during take-up. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural diagram of this application.

[0028] Figure 2 This is a cross-sectional view along the film transport direction of this application.

[0029] Figure 3 This is an enlarged three-dimensional structural diagram of part A of this application.

[0030] Figure 4 This is an enlarged three-dimensional structural diagram of part C of this application.

[0031] Figure 5 This is an enlarged three-dimensional structural diagram of Part B of this application.

[0032] Those skilled in the art will understand that the elements in the accompanying drawings are shown for simplicity and clarity and are not necessarily drawn to scale. For example, the size and position of some elements in the drawings may be enlarged relative to other elements to aid in understanding the embodiments of the invention.

[0033] Reference numerals: 1. Frame; 11. Guide roller; 12. Take-up roller; 13. Mounting frame; 131. Connecting plate; 1311. Slider; 132. Guide groove; 14. Upper sliding groove; 15. Lower sliding groove; 16. Pressure frame; 17. Pressure roller; 2. Upper tension roller; 21. Upper connecting block; 3. Lower tension roller; 31. Lower connecting block; 4. Adjusting assembly; 41. Moving plate; 411. First rack; 412. Moving groove; 413. Slide rod; 414. Spring; 415. Limiting plate; 416. Adjusting screw; 42. Adjusting component; 421. Gear; 422. Second rack; 5. Driving component; 51. Drive motor; 52. Drive screw. Detailed Implementation

[0034] The present application will be further described in detail below with reference to the accompanying drawings.

[0035] This application discloses a film winding device, referring to... Figure 1 and Figure 2 The system includes a frame 1, on which are arranged a plurality of guide rollers 11 parallel to each other and distributed along the width direction of the frame 1, and take-up rollers 12 parallel to each other. A tension adjustment assembly 4 is arranged on the frame 1 between the guide rollers 11 and the take-up rollers 12. The tension adjustment assembly 4 includes an upper tension roller 2 and a lower tension roller 3 parallel to each other and distributed with the guide rollers 11. The upper tension roller 2 and the lower tension roller 3 are arranged alternately. There are two lower tension rollers 3 located on both sides of the upper tension roller 2. Both ends of the upper tension roller 2 and the lower tension roller 3 are slidably connected to the frame 1. The film is transported by the guide rollers 11, tensioned around the lower tension rollers 3 and the upper tension rollers 2, and then wound up by the take-up rollers 12.

[0036] Reference Figure 1 and Figure 2An adjustment assembly 4 is provided on the frame 1. The adjustment assembly 4 includes a movable plate 41 and an adjustment component 42. The movable plate 41 is slidably mounted on the frame 1 in the vertical direction and connected to the upper tension roller 2. A drive component 5 is provided on the frame 1. The adjustment component 42 is mounted on the frame 1 and connected to the movable plate 41. The adjustment component 42 drives the lower tension roller 3 to move in the opposite direction to the movement direction of the upper tension roller 2. The drive component 5 drives the movable plate 41 to slide. The movable plate 41 adjusts the position of the upper tension roller 2. At the same time, the movable plate 41 adjusts the position of the lower tension roller 3 via the adjustment component 42. The upper tension roller 2 and the lower tension roller 3 move in opposite directions to adjust the tension of the film. This can drive and adjust the tension synchronously during winding, reducing the probability of damaging the film.

[0037] Reference Figure 1 and Figure 2 The driving component 5 includes a drive motor 51 and a drive screw 52 perpendicular to the guide roller 11. A mounting frame 13 is vertically mounted on one side of the frame 1. The drive screw 52 is vertically rotatably mounted on the mounting frame 13. The drive motor 51 is vertically upward at the bottom of the mounting frame 13. The drive screw 52 is connected to the output shaft of the drive motor 51. A connecting plate 131 is slidably mounted on the mounting frame 13. The connecting plate 131 is threadedly connected to the drive screw 52. A moving plate 41 is connected to one side of the connecting plate 131. The drive motor 51 drives the drive screw 52 to rotate, which in turn drives the connecting plate 131 to move. The connecting plate 131 synchronously drives the moving plate 41 to slide vertically.

[0038] Reference Figure 3 The mounting bracket 13 has a guide groove 132 along the length of the drive screw 52, ​​and the connecting plate 131 has a slider 1311. The slider 1311 is slidably mounted on the guide groove 132 of the mounting bracket 13. When the connecting plate 131 slides, the slider 1311 slides along the guide groove 132 of the mounting bracket 13, guiding the movement of the connecting plate 131.

[0039] Reference Figure 4 The adjusting component 42 includes a gear 421 and a second rack 422. The gear 421 is rotatably mounted on the frame 1, and the rotation axis of the gear 421 is perpendicular to the moving plate 41. The second rack 422 is slidably mounted on the frame 1 in the vertical direction and meshes with one side of the gear 421. The moving plate 41 is provided with a first rack 411 on two opposite sides in the width direction. The first rack 411 is distributed in the length direction of the moving plate 41 and meshes with the side of the gear 421 away from the second rack 422.

[0040] Reference Figure 5The upper tension roller 2 has an upper connecting block 21 rotatably connected to both ends. The frame 1 has an upper sliding groove 14 for the upper connecting block 21 to slide along the vertical direction. The upper connecting block 21 is connected to the moving plate 41. The lower tension roller 3 has a lower connecting block 31 rotatably connected to both ends. The frame 1 has a lower sliding groove 15 for the lower connecting block 31 to slide along the vertical direction. The lower connecting block 31 is connected to one side of the second rack 422.

[0041] When the moving plate 41 slides, the first rack 411 on one side of the moving plate 41 drives the gear 421 to rotate, and the gear 421 drives the second rack 422 on the opposite side to move in the opposite direction, which synchronously drives the lower tension roller 3 to move and adjust the tension, and synchronously drives and adjusts the upper tension roller 2 and the lower tension roller 3 on both sides.

[0042] Reference Figure 5 The movable plate 41 has a through movable groove 412, which corresponds to the upper sliding groove 14. The end of the upper connecting block 21 facing away from the upper tension roller 2 passes through the upper sliding groove 14 and is slidably installed in the movable groove 412 of the movable plate 41. A sliding rod 413 is vertically installed on the movable plate 41 at the movable groove 412. The upper connecting block 21 is slidably connected to the sliding rod 413. Springs 414 are provided on opposite sides of the upper connecting block 21 and are sleeved on the sliding rod 413. When the upper connecting block 21 is subjected to the pressure of the film pulling, the upper connecting block 21 slides in the movable groove 412. The sliding rod 413 guides the upper connecting block 21 to slide. At this time, the springs 414 on both sides elastically limit the upper connecting block 21, and the upper tension roller 2 elastically tensions the film, reducing the probability of damaging the film.

[0043] Reference Figure 5 A limiting plate 415 is slidably mounted on the movable plate 41 at the movable groove 412. The limiting plate 415 is horizontally positioned and slidably connected to the slide rod 413. An adjusting screw 416 is vertically rotatably mounted on the movable plate 41 above the limiting plate 415. The upward-facing side of the limiting plate 415 is rotatably connected to the downward-facing end of the adjusting screw 416. The end of the spring 414 facing away from the upper connecting block 21 is connected to one side of the limiting plate 415. Rotating the adjusting screw 416 adjusts the position of the limiting plate 415, thereby adjusting the compression of the spring 414 and further adjusting the tension.

[0044] Reference Figure 1 and Figure 2 A pressure frame 16 is rotatably mounted on the frame 1. A pressure roller 17 is rotatably mounted on the pressure frame 16 and is distributed parallel to the take-up roller 12. The outer circumferential wall of the pressure roller 17 is in contact with one side of the film on the take-up roller 12. The pressure roller 17 on the pressure frame 16 presses one side of the film tightly onto the take-up roller 12, so that the film is not easy to loosen during winding.

[0045] The implementation principle of a film winding device according to an embodiment of this application is as follows: the film is transported by guide roller 11, tensioned around the lower tension roller 3 and the upper tension roller 2, and wound up by winding roller 12. The drive motor 51 drives the drive screw 52 to rotate, thereby driving the moving plate 41 to slide. The moving plate 41 adjusts the position of the upper tension roller 2. At the same time, the moving plate 41 adjusts the position of the lower tension roller 3 through the transmission of gear 421 and the second rack 422. The upper tension roller 2 and the lower tension roller 3 move in opposite directions synchronously to adjust the tension of the film, so that the tension can be adjusted synchronously during winding.

[0046] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A winding device for thin films, comprising a frame (1) provided with guide rollers (11) for transporting the thin film and with a winding roller (12) for winding the thin film, said frame (1) being provided with a tension adjustment assembly (4), characterized in that: The tension adjusting assembly (4) comprises upper tension rollers (2) and lower tension rollers (3) which are distributed in parallel with the guide rollers (11), and the two ends of the upper tension rollers (2) and the lower tension rollers (3) are slidably connected with the rack (1), the rack (1) is provided with an adjusting assembly (4), the adjusting assembly (4) comprises a moving plate (41) and an adjusting part (42) which are slidably installed on the rack (1) in a direction perpendicular to the axis of the guide rollers (11), the moving plate (41) is connected with the upper tension rollers (2), the adjusting part (42) is arranged on the rack (1) and connected with the moving plate (41), the adjusting part (42) is used for driving the lower tension rollers (3) to move in a direction opposite to the moving direction of the upper tension rollers (2), and the rack (1) is provided with a driving part (5) for sliding the moving plate (41).

2. The film winding apparatus according to claim 1, wherein: The driving part (5) comprises a driving motor (51) and driving screws (52) which are distributed in parallel with the guide rollers (11), one side of the rack (1) is provided with a mounting frame (13), the driving screws (52) are rotatably installed on the mounting frame (13), the driving motor (51) is arranged on one side of the mounting frame (13), the driving screws (52) are connected with the output shaft of the driving motor (51), the mounting frame (13) is slidably provided with a connecting plate (131), the connecting plate (131) is threadedly connected with the driving screws (52), and one side of the moving plate (41) is connected with the connecting plate (131).

3. The film winding apparatus according to claim 1, wherein: The adjusting part (42) comprises a gear (421) and a second rack (422), the gear (421) is rotatably installed on the rack (1), the rotation axis of the gear (421) is distributed in parallel with the axis of the guide rollers (11), the second rack (422) is slidably installed on the rack (1) and engaged with one side of the gear (421), one end of the second rack (422) is connected with the lower tension rollers (3), and a first rack (411) is arranged on one side of the moving plate (41) in the length direction of the moving plate (41), the first rack (411) is engaged with the side of the gear (421) away from the second rack (422).

4. The film winding apparatus according to claim 2, wherein: The mounting frame (13) is provided with a guide groove (132) in the length direction of the driving screws (52), and the connecting plate (131) is provided with a sliding block (1311) which is slidably installed in the guide groove (132) of the mounting frame (13).

5. The film winding apparatus according to claim 3, wherein: The upper tensioning roller (2) is rotatably connected with upper connecting blocks (21), the frame (1) is provided with upper sliding grooves (14) for the sliding of the upper connecting blocks (21), the upper connecting blocks (21) are connected with the moving plate (41), the lower tensioning roller (3) is rotatably connected with lower connecting blocks (31), the frame (1) is provided with lower sliding grooves (15) for the sliding of the lower connecting blocks (31), the lower connecting blocks (31) are connected with one side of the second rack (422), and the lower sliding grooves (15) and the upper sliding grooves (14) are distributed in parallel.

6. A film winding apparatus according to claim 5, wherein: The moving plate (41) is provided with moving grooves (412) corresponding to the positions of the upper sliding grooves (14), one end of the upper connecting block (21) away from the upper tensioning roller (2) penetrates through the upper sliding groove (14) and is slidably installed at the moving groove (412) of the moving plate (41), spring (414) is arranged on the opposite sides of the upper connecting block (21), and the spring (414) is connected with the moving plate (41).

7. A film winding apparatus according to claim 6, wherein: The moving plate (41) is slidably installed with a limiting plate (415) at the moving groove (412), the moving plate (41) is rotatably installed with an adjusting screw (416), one end of the limiting plate (415) is rotatably connected with the adjusting screw (416), and one end of the spring (414) away from the upper connecting block (21) is connected with one side of the limiting plate (415).

8. The film winding apparatus according to claim 1, wherein: The frame (1) is rotatably installed with a pressing frame (16), the pressing frame (16) is rotatably installed with pressing rollers (17) distributed in parallel with the winding roller (12), and the circumferential outer wall of the pressing roller (17) is attached to one side of the film on the winding roller (12).

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