Film slitting and winding machine capable of preventing film from loosening

By introducing tension adjustment components and slitting adjustment components into the film slitting and winding machine, and utilizing elastic connections and airbag compression, the problem of film loosening was solved, and the slitting quality and equipment stability were improved.

CN224147295UActive Publication Date: 2026-04-21GUANGDONG ZHONGXING PLASTIC & PAPER PRINTING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG ZHONGXING PLASTIC & PAPER PRINTING CO LTD
Filing Date
2025-06-06
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing film slitting and rewinding machines are prone to film rolls coming loose during the slitting process, causing the slitting position to shift and affecting product quality and efficiency.

Method used

The system employs a tension adjustment assembly and a slitting adjustment assembly, including a rotating frame, elastic connectors, and airbags. Through elastic compression and airbag clamping, it ensures that the film remains taut during transport and stabilizes the position of the slitting blade.

Benefits of technology

It effectively prevents the film from loosening, improves slitting quality and accuracy, and ensures the consistency of slitting dimensions and the practicality of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of film slitting, in particular to a film slitting winding machine capable of preventing a film from loosening, which mainly comprises a support frame, a feeding roller is arranged on one side of the support frame, an adjusting frame is connected to one end of the support frame, a receiving roller is arranged on the inner side of the adjusting frame, a first rotating frame is arranged at the top end of the inner side of the support frame, and a second rotating frame is arranged at the top end of the inner side of the support frame. An adjusting roller is arranged on the inner side of the first rotating frame, the second rotating frame is arranged at the bottom end of the inner side of the supporting frame, and elastic connecting pieces are arranged on the two sides of the second rotating frame. According to the thin film slitting and winding machine capable of preventing the thin film from loosening, a thin film to be slit sequentially penetrates through the first rotating frame and the second rotating frame, the thin film is wound on the adjusting roller with the inner side position capable of being adjusted in a telescopic mode firstly, the thin film is stretched through elastic extrusion of the elastic connecting rod, and the thin film is cut through cooperation with the second rotating frame which is elastically connected; tensioning protection is carried out when the thin film is conveyed, the thin film is prevented from loosening in the conveying process, and the slitting machining quality of products is improved.
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Description

Technical Field

[0001] This utility model relates to the field of film slitting technology, specifically a film slitting and rewinding machine that prevents film from loosening. Background Technology

[0002] A film slitting and rewinding machine is a device used to slit wide plastic films into multiple narrow rolls and rewind them into neat packages. It is widely used in packaging, printing, electronics, new energy, and other industries.

[0003] In existing film slitting and winding equipment, the film roll to be slitting is transported through a guiding mechanism, then slit by a pre-positioned slitting blade, and finally wound. During the film transport process, the unwinding end of the film roll is in a loose rotating state, making the film prone to detachment. This leads to positional deviations in the subsequent slitting, resulting in dimensional deviations and affecting the efficiency of subsequent product use. This reduces the practicality of the equipment and requires optimization and improvement. Utility Model Content

[0004] The purpose of this invention is to provide a film slitting and rewinding machine that prevents film from coming loose, thereby solving the problem mentioned in the background art that if the film roll comes loose during slitting, it can easily affect product quality.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a film slitting and winding machine for preventing film detachment, comprising: a support frame, a feeding roller on one side of the support frame, and an adjusting frame connected to one end of the support frame, a taking-up roller on the inner side of the adjusting frame, and a tension adjusting assembly and a slitting adjusting assembly: the tension adjusting assembly includes a rotating frame one and a rotating frame two, the rotating frame one being disposed at the inner top of the support frame, and an adjusting roller being disposed on the inner side of the rotating frame one, the rotating frame two being disposed at the inner bottom of the support frame, and elastic connecting members being disposed on both sides of the rotating frame two, the tension adjusting assembly being used for tension adjustment during film slitting; the slitting adjusting assembly includes a connecting frame, the connecting frame being disposed at the top of the support frame, a slitting roller being disposed at the inner top of the connecting frame, and a slitting blade being disposed on the outer side of the slitting roller, the slitting adjusting assembly being used for adjusting the spacing of film slitting of different sizes.

[0006] Preferably, a guide roller is connected to the inner bottom end of the rotating frame, and a telescopic cylinder is connected to one end of the rotating frame.

[0007] Preferably, the inner top of the guide roller is provided with an adjustment groove, the adjustment roller is disposed inside the adjustment groove, and the bottom end of the adjustment roller is connected to an elastic connecting rod.

[0008] Preferably, the bottom end of the rotating frame two is provided with a rotating connecting rod, and the inner side of the rotating connecting rod is provided with an elastic connecting member.

[0009] Preferably, a rotating roller is connected to one end of the inner side of the connecting frame.

[0010] Preferably, an adjusting ring is provided on the outer side of the slitting roller, and the slitting blade is disposed at the top of the adjusting ring.

[0011] Preferably, a movable top plate is provided on the inner side of the slitting roller, and a shrinking extrusion rod is connected to the inner side of the movable top plate.

[0012] Preferably, an air inlet pipe is connected to the front end of the connecting frame, and an air bladder is provided on the inner side of the slitting roller.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model passes the film to be cut sequentially through rotating frame one and rotating frame two. The film first passes through the adjustable roller with a telescopic position on the inner side. The elastic compression of the elastic connecting rod stretches the film. With the help of the elastically connected rotating frame two, the film is tightened and protected during transmission. At the same time, the transmission path of the film is extended, and manual adjustment is convenient in case of deviation, preventing the film from loosening during transmission and improving the quality of product cutting. When cutting the film, the spacing can be flexibly adjusted by the adjustable ring with stable position. Under the condition of internal air inflation and tight pressure, the stability of the slitting blade after adjustment is ensured, avoiding the loosening of the blade during the cutting process, and further improving the processing quality of the cut product. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a three-dimensional structural diagram of the present invention from another perspective;

[0016] Figure 3 This is a schematic diagram of the partially separated three-dimensional structure of the tension adjustment component of this utility model;

[0017] Figure 4 This is a schematic diagram of the partial separation three-dimensional structure of the cutting adjustment component of this utility model;

[0018] Figure 5 For the present utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0019] In the diagram: 1. Support frame; 2. Feeding roller; 3. Adjusting frame; 4. Receiving roller; 5. Rotating frame one; 6. Guide roller one; 7. Adjusting groove; 8. Adjusting roller; 9. Elastic connecting rod; 10. Telescopic cylinder; 11. Rotating frame two; 12. Rotating connecting rod; 13. Elastic connector; 14. Connecting frame; 15. Rotating roller; 16. Slitting roller; 17. Adjusting ring; 18. Slitting knife; 19. Moving top plate; 20. Shrinking extrusion rod; 21. Air inlet pipe. Detailed Implementation

[0020] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0022] like Figure 1 - Figure 5 As shown, this application provides a film slitting and winding machine to prevent film loosening, including: a support frame 1, a feeding roller 2 disposed on one side of the support frame 1, and an adjusting frame 3 connected to one end of the support frame 1, a taking-up roller 4 disposed on the inner side of the adjusting frame 3, and a tension adjustment assembly and a slitting adjustment assembly: the tension adjustment assembly includes a rotating frame 1 5 and a rotating frame 2 11, the rotating frame 1 5 is disposed at the inner top of the support frame 1, and an adjusting roller 8 is disposed on the inner side of the rotating frame 1, the rotating frame 2 11 is disposed at the inner bottom of the support frame 1, and elastic connecting members 13 are disposed on both sides of the rotating frame 2 11, the tension adjustment assembly is used for tension adjustment during film slitting; specifically, as shown... Figure 3 As shown, a guide roller 6 is connected to the inner bottom end of the rotating frame 5, and a telescopic cylinder 10 is connected to one end of the rotating frame 5. The telescopic cylinder 10 drives the rotating frame 5 to perform a certain angle position adjustment.

[0023] Specifically, such as Figure 3 As shown, the inner top of the guide roller 6 is provided with an adjustment groove 7, the adjustment roller 8 is provided inside the adjustment groove 7, and the bottom end of the adjustment roller 8 is connected to an elastic connecting rod 9. The connection of the elastic connecting rod 9 is used for guiding and adjusting the adjustment roller 8 to slide inside the adjustment groove 7.

[0024] Specifically, such as Figure 3As shown, a rotating connecting rod 12 is provided at the bottom of the rotating frame 2 11, and an elastic connecting member 13 is provided on the inner side of the rotating connecting rod 12. The rotating connecting rod 12 is used to connect the rotating frame 2 11, so that the rotating frame 2 11 and the support frame 1 can be rotated and adjusted. Then, after the elastic connecting member 13 is connected, it is convenient to adjust the tension position.

[0025] The slitting adjustment assembly includes a connecting frame 14, which is located at the top of the support frame 1. A slitting roller 16 is provided on the inner top of the connecting frame 14, and a slitting blade 18 is provided on the outer side of the slitting roller 16. The slitting adjustment assembly is used to adjust the spacing of films of different sizes.

[0026] Specifically, such as Figure 4 As shown, a rotating roller 15 is connected to one end of the inner side of the connecting frame 14. The rotating roller 15 is used to guide and transport the slit film.

[0027] Specifically, such as Figure 5 As shown, an adjusting ring 17 is provided on the outer side of the slitting roller 16, and a slitting blade 18 is provided at the top of the adjusting ring 17. The slitting blade 18 slides and adjusts inside the slitting roller 16 to control the slitting position of the slitting blade 18.

[0028] Specifically, such as Figure 5 As shown, a movable top plate 19 is provided on the inner side of the slitting roller 16, and a shrinking extrusion rod 20 is connected to the inner side of the movable top plate 19. When there is no internal extrusion pressure, the movable top plate 19 is driven by the shrinking extrusion rod 20 to be housed inside the slitting roller 16.

[0029] Specifically, such as Figure 4 As shown, the front end of the connecting frame 14 is connected to the air inlet pipe 21, and the inner side of the slitting roller 16 is provided with an air bladder. The air inlet pipe 21 inflates the inside of the air bladder, causing the moving top plate 19 to push outward and squeeze the adjusting ring 17.

[0030] In this embodiment: the film to be cut is passed sequentially through the rotating frame 5 and the rotating frame 11, and wound around the adjustable roller 8 with a telescopic position on the inner side, so as to facilitate the elastic compression of the elastic connecting rod 9 and stretch the film. With the help of the elastically connected rotating frame 11, the stretching adjustment during the transmission process can be improved, and the film is tightened and protected during transmission to prevent it from loosening. When cutting the film, the spacing is adjusted by the adjustable ring 17 with a stable position to ensure the stability of the slitting blade 18 and avoid the blade from loosening during slitting.

[0031] The specific steps of this scheme are as follows: First, the film to be cut, wound on the feeding roller 2, is passed sequentially through the rotating frame 5 and the rotating frame 11. It first passes through the adjusting roller 8, and then is transferred to the transfer roller inside the rotating frame 11 via the guide roller 6. The connection of the elastic connecting rod 9 is used to guide and adjust the sliding of the adjusting roller 8 inside the adjusting groove 7, allowing the film to be stretched under the action of elasticity. The rotating frame 11, connected with the elastic connecting piece 13, provides tension protection during film transfer to prevent the film from loosening. When the film is cut, the adjusting ring 17 moves outside the cutting roller 16 to adjust to the appropriate cutting position. Then, air is injected into the air bladder inside the cutting roller 16 through the air inlet pipe 21, pushing out the moving top plate 19, which is pressed against the inside of the adjusting ring 17 to position the moving position of the adjusting ring 17. After the film is cut, it passes around the rotating roller 15 and is wound up by the take-up roller 4.

[0032] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary; within the framework of this invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of this invention as described above, which are not provided in the details for the sake of brevity.

[0033] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A film slitting and winding machine for preventing film from coming loose, comprising: A support frame (1) is provided with a feeding roller (2) on one side and an adjusting frame (3) connected to one end of the support frame (1). A receiving roller (4) is provided on the inner side of the adjusting frame (3). The support frame (1) is characterized by further comprising: a tension adjusting assembly, which includes a rotating frame one (5) and a rotating frame two (11). The rotating frame one (5) is located at the top inner side of the support frame (1) and an adjusting roller (8) is provided on the inner side of the rotating frame one (5). The rotating frame two (11) is located at the top inner side of the support frame (1). The inner bottom end of the rotating frame (11) and the front and rear bottom ends of the rotating frame (11) are provided with elastic connecting parts (13). The tension adjustment component is used for tension adjustment during film slitting. The slitting adjustment component includes a connecting frame (14). The connecting frame (14) is located at the top of the support frame (1). The inner top end of the connecting frame (14) is provided with a slitting roller (16), and the outer side of the slitting roller (16) is provided with a slitting knife (18). The slitting adjustment component is used for adjusting the spacing of film slitting of different sizes.

2. The film slitting and winding machine for preventing film from being loosened according to claim 1, wherein The inner bottom of the rotating frame (5) is connected to a guide roller (6), and one end of the rotating frame (5) is connected to a telescopic cylinder (10).

3. The film slitting and winding machine for preventing film from being loosened according to claim 2, wherein The guide roller (6) has an adjustment groove (7) at its inner top end, and the adjustment roller (8) is located inside the adjustment groove (7), with an elastic connecting rod (9) connected to the bottom end of the adjustment roller (8).

4. The film slitting and winding machine for preventing film from being loosened according to claim 1, wherein The bottom end of the rotating frame 2 (11) is provided with a rotating connecting rod (12), and the inner side of the rotating connecting rod (12) is provided with an elastic connecting member (13).

5. The film slitting and winding machine for preventing film from being loosened according to claim 1, wherein A rotating roller (15) is connected to one end of the inner side of the connecting frame (14).

6. The film slitting and winding machine for preventing film from being loosened according to claim 1, wherein An adjusting ring (17) is provided on the outer side of the slitting roller (16), and the slitting blade (18) is located at the top of the adjusting ring (17).

7. The film slitting and winding machine for preventing film from being loosened according to claim 1, wherein The inner side of the slitting roller (16) is provided with a movable top plate (19), and the inner side of the movable top plate (19) is connected with a shrinking extrusion rod (20).

8. The film slitting and winding machine for preventing film from being loosened according to claim 1, wherein The front end of the connecting frame (14) is connected to an air inlet pipe (21), and an air bag is provided on the inner side of the slitting roller (16).