Cutting mechanism for film cutting machine
By combining the worm gear and connecting rod structure, the film cutting machine achieves stable pressing of the plastic film, solving the shaking problem during cutting and improving the cutting quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN HONG YUDA SEMICON CO LTD
- Filing Date
- 2025-05-31
- Publication Date
- 2026-04-21
AI Technical Summary
Existing film cutting machines cannot effectively compress plastic film during cutting, causing the film to easily move or shake during cutting, affecting the cutting quality.
The system employs a worm gear mechanism and connecting rod structure, along with a servo motor and a fixed motor, to achieve stable clamping of the plastic film. The worm gear meshing drives the connecting rod and roller to rotate, which in turn moves the fixed strip and the moving plate, thus achieving stable clamping of the plastic film. Cutting is achieved through the cooperation of the screw and the connecting plate.
It improves the stability and flatness of plastic film cutting, and enhances the cutting quality.
Smart Images

Figure CN224144747U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of film cutting machine cutting, specifically a cutting mechanism for film cutting machines. Background Technology
[0002] In the plastic film processing, a film cutting machine is used to cut the plastic film to a specified length. Patent publication number CN215701921U discloses a zero-waste film cutting machine. Support legs are fixedly installed at the four corners of the conveying device. A PLC controller is fixedly installed on the left side of the conveying device. A left baffle and a right baffle are fixedly installed on the top of both sides of the conveying device, respectively. A fixing plate is fixedly installed on the top front end of the left baffle and the right baffle. A first motor is fixedly installed on the left side of the fixing plate. A feeding roller is movably installed between the two fixing plates.
[0003] The aforementioned film cutting machine only uses a cutting blade to cut the plastic film, and cannot clamp the film during cutting. This makes the plastic film prone to movement or shaking during cutting, resulting in uneven cuts and reduced cutting quality. Therefore, a cutting mechanism for the film cutting machine is proposed to solve the problems mentioned above. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a cutting mechanism for a film cutting machine, which can press the plastic film during cutting. This allows the plastic film to remain stable during cutting, resulting in a smoother cut and improved cutting quality.
[0005] To achieve the above objectives, this utility model provides the following technical solution: A workbench is included, with two connecting frames fixedly connected to one side of the workbench. The same film-winding roller is rotatably connected to the inner side of each of the two connecting frames. Two movable plates are slidably connected to the inner side of the workbench, and a fixed strip is fixedly connected between the two movable plates. Two supports are fixedly connected to one side of the workbench, with a second roller rotatably connected to the inner side of each of the two supports. A connecting rod is fixedly connected to one side of each of the two second rollers, and a third roller is fixedly connected between the two connecting rods. An arc-shaped hole adapted to the third roller is opened on the inner side of the fixed strip, and the outer side of the third roller movably abuts against the inner side of the arc-shaped hole. A cutting mechanism is provided on the inner side of the workbench.
[0006] Preferably, the cutting mechanism includes: a fixed blade, a groove is provided on the top of the worktable, the bottom of the fixed blade is fixedly connected to the inner wall of the bottom of the groove, and a sliding hole is provided on one side of the worktable. A connecting plate is slidably connected to the inner side of the sliding hole, and a movable blade is fixedly connected to one side of the connecting plate. A screw is threadedly connected to the inner side of the connecting plate, and the outer side of the screw is rotatably connected to the inner side of the worktable.
[0007] Preferably, a first roller is rotatably connected to one side of the worktable, a worm gear is fixedly connected to the outer side of the first roller, and a worm wheel meshes with the outer side of the worm gear, and the inner side of the worm wheel is fixedly connected to the outer side of a second roller near the worm gear.
[0008] Preferably, a guide plate is fixedly connected to the top of the workbench, the outer side of the guide plate is slidably connected to the inner side of the fixing strip, and a fixed motor is fixedly connected to one side of the workbench, the output end of the fixed motor being fixedly connected to the top of the screw.
[0009] Preferably, a servo motor is fixedly connected to one side of the worktable, and the output end of the servo motor is fixedly connected to the bottom of the first roller.
[0010] Preferably, a controller is fixedly connected to one side of the workbench, and the controller is electrically connected to the servo motor and the fixed motor.
[0011] Preferably, both of the movable plates are fixedly connected to a flexible plate at their bottom, and multiple rotating rollers are rotatably connected to the inner side of the workbench.
[0012] Compared with the prior art, the present invention provides a cutting mechanism for a film cutting machine, which has the following beneficial effects:
[0013] 1. This type of film cutting machine uses a cutting mechanism. Through the cooperation between the fixed motor and the screw, the user can drive the moving blade to move, so that it can complete the cutting of plastic film together with the fixed blade.
[0014] 2. The cutting mechanism of this type of film cutting machine, through the gear cooperation between the worm gear and the worm, allows the soft plate to press the plastic film more fully.
[0015] 3. The cutting mechanism of this film cutting machine, through the cooperation between the connecting rod, the first roller and the servo motor, allows the plastic film to be pressed tightly when it is being cut. This makes the plastic film stable during the cutting process, resulting in a smoother cut and thus improving the cutting quality. Attached Figure Description
[0016] Figure 1 This is a first-view structural diagram of the present invention.
[0017] Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model;
[0018] Figure 3 This is a structural schematic diagram of the entire utility model from a second perspective;
[0019] Figure 4 for Figure 3 A magnified view of a portion of the image.
[0020] In the diagram: 1. Workbench; 2. Rotating roller; 3. Film roll roller; 4. Fixed blade; 5. Moving blade; 6. Connecting plate; 7. Screw; 8. Fixed motor; 9. Moving plate; 10. Flexible plate; 11. Fixing strip; 12. Guide plate; 13. Servo motor; 14. Roller No. 1; 15. Worm gear; 16. Worm wheel; 17. Roller No. 2; 18. Connecting rod; 19. Roller No. 3. Detailed Implementation
[0021] 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. Example
[0022] Please see Figure 1 - Figure 4 The cutting mechanism for a film cutting machine in this embodiment includes a worktable 1. Two connecting frames are fixedly connected to one side of the worktable 1. The same film rolling roller 3 is rotatably connected to the inner side of the two connecting frames. Two movable plates 9 are slidably connected to the inner side of the worktable 1. The same fixing strip 11 is fixedly connected between the two movable plates 9. Two brackets are fixedly connected to one side of the worktable 1. A second roller 17 is rotatably connected to the inner side of the two brackets. A connecting rod 18 is fixedly connected to one side of the two second rollers 17. The same third roller 19 is fixedly connected between the two connecting rods 18. An arc-shaped hole adapted to the third roller 19 is opened on the inner side of the fixing strip 11. The outer side of the third roller 19 moves against the inner side of the arc-shaped hole. A cutting mechanism is provided on the inner side of the worktable 1.
[0023] In this process, roller 14 begins to rotate, which in turn drives worm 15 to rotate. Since worm 15 meshes with worm wheel 16, worm wheel 16 also begins to rotate, causing roller 17 to rotate. Subsequently, connecting rod 18 also begins to rotate, which allows roller 19 to rotate continuously inside the arc-shaped hole. This allows fixing strip 11 to move vertically. Then, fixing strip 11 drives moving plate 9 to move, which allows the two flexible plates 10 to press the plastic film from top to bottom.
[0024] The cutting mechanism includes: a fixed blade 4; a groove is provided on the top of the worktable 1; the bottom of the fixed blade 4 is fixedly connected to the inner wall of the bottom of the groove; a sliding hole is provided on one side of the worktable 1; a connecting plate 6 is slidably connected to the inner side of the sliding hole; a movable blade 5 is fixedly connected to one side of the connecting plate 6; a screw 7 is threadedly connected to the inner side of the connecting plate 6; the outer side of the screw 7 is rotatably connected to the inner side of the worktable 1; a first roller 14 is rotatably connected to one side of the worktable 1; a worm gear 15 is fixedly connected to the outer side of the first roller 14; a worm wheel 16 meshes with the outer side of the worm gear 15; the inner side of the worm wheel 16 is fixedly connected to the outer side of a second roller 17 near the worm gear 15; the worm wheel 16 drives the second roller 17 to rotate, which allows the device to operate stably.
[0025] A guide plate 12 is fixedly connected to the top of the workbench 1. The outer side of the guide plate 12 is slidably connected to the inner side of the fixed strip 11. A fixed motor 8 is fixedly connected to one side of the workbench 1. The output end of the fixed motor 8 is fixedly connected to the top of the screw 7. A servo motor 13 is fixedly connected to one side of the workbench 1. The output end of the servo motor 13 is fixedly connected to the bottom of the first roller 14, which allows the first roller 14 to rotate.
[0026] A controller is fixedly connected to one side of the workbench 1. The controller is electrically connected to the servo motor 13 and the fixed motor 8. The bottom of the two moving plates 9 are fixedly connected to the flexible plates 10. Multiple rotating rollers 2 are rotatably connected to the inside of the workbench 1, which allows the plastic film to be moved.
[0027] The working principle of the above embodiments is as follows:
[0028] In use, the rotating roller 2 rotates, allowing the plastic film on the outside of the film roll 3 to be transported on the top of the worktable 1. When the user needs to cut it, the flexible plate 10 is used to clamp it, the servo motor 13 is started, and then the first roller 14 starts to rotate. Then, the first roller 14 drives the worm gear 15 to rotate. Since the worm gear 15 meshes with the worm wheel 16, the worm wheel 16 also starts to rotate, causing the second roller 17 to rotate. Then the connecting rod 18 also starts to rotate, allowing the third roller 19 to rotate continuously inside the arc hole, so that the fixing strip 11 can move vertically. Then the fixing strip 11 drives the moving plate 9 to move, so that the two flexible plates 10 can press the plastic film from top to bottom. Then the connecting plate 6 is in the middle position. The user starts the fixing motor 8, causing the screw 7 to start to rotate. Then the connecting plate 6 drives the fixing motor 8 to move vertically, so that the user can use the moving blade 5 and the fixing blade 4 to cut the plastic film.
[0029] The installation method, connection method, or setting method disclosed in this embodiment are all common mechanical connections.
[0030] Any connection method that can achieve its beneficial effect can be implemented. In addition, all electrical components in this embodiment are electrically connected to the main controller and the power supply. The main controller can be a conventional known device such as a computer that plays a control role. Those skilled in the art can control the electrical components through simple programming. Moreover, the existing public power connection technology is also common knowledge in the field. Therefore, the specific structural composition and working principle will not be described in detail in this embodiment.
[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A cutting mechanism for a film cutting machine, comprising a worktable (1), characterized in that: Two connecting frames are fixedly connected to one side of the workbench (1). The same film roll (3) is rotatably connected to the inner side of the two connecting frames. Two movable plates (9) are slidably connected to the inner side of the workbench (1). The same fixing strip (11) is fixedly connected between the two movable plates (9). Two brackets are fixedly connected to one side of the workbench (1). A second roller (17) is rotatably connected to the inner side of the two brackets. A connecting rod (18) is fixedly connected to one side of the two second rollers (17). The same third roller (19) is fixedly connected between the two connecting rods (18). An arc-shaped hole adapted to the third roller (19) is opened on the inner side of the fixing strip (11). The outer side of the third roller (19) moves against the inner side of the arc-shaped hole. A cutting mechanism is provided on the inner side of the workbench (1).
2. The cutting mechanism for a film cutting machine according to claim 1, characterized in that: The cutting mechanism includes: a fixed blade (4), a groove is provided on the top of the workbench (1), the bottom of the fixed blade (4) is fixedly connected to the inner wall of the bottom of the groove, and a sliding hole is provided on one side of the workbench (1), a connecting plate (6) is slidably connected to the inner side of the sliding hole, and a movable blade (5) is fixedly connected to one side of the connecting plate (6), and a screw (7) is threadedly connected to the inner side of the connecting plate (6), and the outer side of the screw (7) is rotatably connected to the inner side of the workbench (1).
3. The cutting mechanism for a film cutting machine according to claim 1, wherein: The workbench (1) is rotatably connected to a first roller (14) on one side. A worm (15) is fixedly connected to the outside of the first roller (14), and a worm wheel (16) meshes with the outside of the worm (15). The inside of the worm wheel (16) is fixedly connected to the outside of the second roller (17) near the worm (15).
4. The cutting mechanism for a film cutting machine according to claim 1, wherein: The top of the workbench (1) is fixedly connected to a guide plate (12), the outer side of the guide plate (12) is slidably connected to the inner side of the fixing strip (11), and a fixed motor (8) is fixedly connected to one side of the workbench (1), the output end of the fixed motor (8) is fixedly connected to the top of the screw (7).
5. The cutting mechanism for a film cutting machine according to claim 1, wherein: A servo motor (13) is fixedly connected to one side of the workbench (1), and the output end of the servo motor (13) is fixedly connected to the bottom of the first roller (14).
6. The cutting mechanism for a film cutting machine according to claim 1, wherein: A controller is fixedly connected to one side of the workbench (1), and the controller is electrically connected to the servo motor (13) and the fixed motor (8).
7. The cutting mechanism for a film cutting machine according to claim 1, wherein: Both of the movable plates (9) are fixedly connected to the bottom of a flexible plate (10), and multiple rotating rollers (2) are rotatably connected to the inner side of the workbench (1).
Citation Information
Patent Citations
Zero-waste film cutting machine
CN215701921U