A protective film cutting device facilitating adjustment of cutting size
By combining the limit adjustment track plate and electric control, the problems of inaccurate cutting spacing and the inability of the cutting blade to start and stop independently in the existing protective film cutting device are solved, thus improving the flexibility and efficiency of the cutting device.
Patent Information
- Application Number
- CN202521992720.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-17
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-17
AI Technical Summary
Existing protective film cutting devices cannot precisely adjust the cutting spacing, and the cutting blade cannot be started and stopped independently, affecting cutting efficiency and flexibility.
It adopts a combination design of limit adjustment track plate, sliding slot, fixed plate and cutting section, and combines mechanical adjustment and electric control to achieve precise adjustment of cutting distance and independent start and stop of cutting blade.
It enables precise adjustment of the cutting spacing and independent start/stop of the cutting blades, improving the flexibility and efficiency of protective film cutting and avoiding interference between cutting blades and cumbersome adjustment issues.
Smart Images

Figure CN224675066U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of protective film production and processing technology, specifically a protective film cutting device that facilitates adjustment of cutting size. Background Technology
[0002] Protective film is a thin film material with specific functions. It protects vulnerable surfaces through physical adhesion, preventing them from being damaged by physical factors (such as scratches and collisions), chemical contamination (such as dust and fingerprints), or environmental erosion (such as ultraviolet rays and oxidation) during transportation, assembly, processing, or use. Its core characteristics include easy adhesion, no residue, high light transmittance, and environmental adaptability. In the production and processing of protective film, large-sized protective films need to be uniformly cut to ensure that the cut protective film meets the requirements of production and use. However, the existing cutting equipment cannot easily and accurately adjust the cutting spacing, nor can it selectively use cutting blades at different positions according to different protective film sizes. Furthermore, other cutting blades should not interfere with the normal operation of the cutting blade being used. Therefore, an insulating film is needed to solve the above problems. Utility Model Content
[0003] The purpose of this invention is to provide a protective film cutting device that facilitates adjustment of cutting size, so as to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a protective film cutting device that facilitates adjustment of cutting size, comprising a limiting adjustment track plate, a sliding slot, a fixing plate, and cutting parts. The fixing plate is fixedly installed at both ends of the limiting adjustment track plate, the sliding slot is formed on the limiting adjustment track plate, and the cutting parts are evenly distributed on the limiting adjustment track plate. Several cutting parts are provided, and the number of cutting parts can be easily removed and replaced to control the number used according to the needs of use.
[0005] Preferably, the cutting section includes an adjusting support arm, a sliding bracket, a locking threaded post, a sliding plate, a first motor, a cutting blade, a second motor, a lifting and adjusting column, and an electric push rod. The sliding plate is symmetrically fixed inside the bottom end of the sliding bracket. The locking threaded posts are symmetrically threaded and rotatably inserted into both sides of the sliding bracket. The adjusting support arm is rotatably engaged inside the upper end of the sliding bracket. The first motor is fixedly installed on the outer side of the upper end of the sliding bracket, and the drive end of the first motor is engaged with the adjusting support arm inside the sliding bracket. The lifting and adjusting column is partially fixedly connected. It is slidably engaged with the inside of the end of the adjusting support arm away from the sliding seat. The electric push rod is symmetrically fixedly installed on the adjusting support arm, and the upper end of the electric push rod is fixedly connected to the upper end of the lifting and adjusting column. The cutting blade is rotatably engaged with the inside of the bottom end of the lifting and adjusting column. The second motor is fixedly installed on the outside of the bottom end of the lifting and adjusting column, and the drive end of the second motor is fixedly connected to the middle of the cutting blade. The front end of the locking threaded column is pressed into contact with the side end of the limit adjusting track plate.
[0006] Preferably, an angle sensor is provided on the side of the sliding bracket away from the first motor, and the adjusting support arm is engaged inside the sliding bracket and connected to the angle sensor on the side away from the first motor.
[0007] Preferably, the sliding bracket is slidably engaged with the limit adjustment track plate via a sliding plate and a sliding slot.
[0008] Preferably, the upper end face of the limit adjustment track plate is provided with a scale line.
[0009] Preferably, the edge of the sliding bracket is located directly above the scale line.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0011] This invention combines mechanical adjustment with electric control to achieve precise adjustment of the cutting spacing, independent start / stop of the cutting blades, and height control. It effectively solves the problems of mutual interference between cutting blades and cumbersome adjustment in traditional equipment, significantly improving the flexibility and efficiency of protective film cutting. Furthermore, the spacing between each cutting blade can be precisely and conveniently adjusted, enabling equidistant and uniform cutting. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the main three-dimensional structure of the present utility model;
[0013] Figure 2 This is a side view of the three-dimensional structure of the main body in this utility model;
[0014] Figure 3 This is a schematic diagram of the cutting part structure in this utility model.
[0015] In the diagram: 1-Limit adjustment track plate, 2-Scale line, 3-Sliding slot, 4-Fixing plate, 5-Cutting part, 6-Adjusting support arm, 7-Angle sensor, 8-Sliding seat, 9-Locking threaded column, 10-Sliding plate, 11-First motor, 12-Cutting blade, 13-Second motor, 14-Lifting adjustment column, 15-Electric push rod. Detailed Implementation
[0016] 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.
[0017] Please see Figure 1-3 The present invention provides an embodiment of a protective film cutting device that facilitates adjustment of cutting size, comprising a limiting adjustment track plate 1, a sliding groove 3, a fixing plate 4, and a cutting part 5. The fixing plate 4 is fixedly installed at both ends of the limiting adjustment track plate 1, the sliding groove 3 is opened on the limiting adjustment track plate 1, and the cutting parts 5 are evenly distributed on the limiting adjustment track plate 1. Several cutting parts 5 are provided, and the number of cutting parts 5 can be easily removed and replaced to control the number used according to the needs of use.
[0018] The cutting section 5 includes an adjusting support arm 6, a sliding bracket 8, a locking threaded post 9, a sliding clamping plate 10, a first motor 11, a cutting blade 12, a second motor 13, a lifting and adjusting column 14, and an electric push rod 15. The sliding clamping plate 10 is symmetrically fixed inside the bottom end of the sliding bracket 8. The locking threaded post 9 is symmetrically threaded and rotatably inserted into both sides of the sliding bracket 8. The adjusting support arm 6 is rotatably clamped inside the upper end of the sliding bracket 8. The first motor 11 is fixedly installed on the outer side of the upper end of the sliding bracket 8, and the drive end of the first motor 11 is clamped to the adjusting support arm 6 in the sliding bracket 8. The internal parts are fixedly connected. The lifting and adjusting column 14 is slidably engaged inside the end of the adjusting support arm 6 away from the sliding seat 8. The electric push rod 15 is symmetrically fixedly installed on the adjusting support arm 6, and the upper end of the electric push rod 15 is fixedly connected to the upper end of the lifting and adjusting column 14. The cutting blade 12 is rotatably engaged inside the bottom end of the lifting and adjusting column 14. The second motor 13 is fixedly installed on the outside of the bottom end of the lifting and adjusting column 14, and the drive end of the second motor 13 is fixedly connected to the middle part of the cutting blade 12. The front end of the locking threaded column 9 is pressed into contact with the side end of the limit adjusting track plate 1.
[0019] An angle sensor 7 is provided on the side of the sliding bracket 8 away from the first motor 11, and the side of the adjusting support arm 6, which is locked inside the sliding bracket 8 away from the first motor 11, is connected to the angle sensor 7. The angle sensor 7 can determine the rotation angle of the adjusting support arm 6, thereby making it easy to determine whether the cutting blade 12 in each cutting section 5 is in a working posture. It can also make it easy to accurately control and know whether the cutting section 5 at the corresponding position is in operation.
[0020] The sliding bracket 8 is slidably engaged with the limit adjustment track plate 1 via the sliding plate 10 and the sliding slot 3, which enables sliding adjustment and ensures stable operation after adjustment.
[0021] The upper surface of the limit adjustment track plate 1 is provided with a scale line 2. The edge of the sliding bracket 8 is located directly above the scale line 2. By observing the scale line 2, the spacing and distance between each sliding bracket 8 can be easily adjusted and controlled, so that the spacing between each cutting part 5 can be easily adjusted and controlled, and indirectly, the spacing between each cutting blade 12 can be accurately and conveniently adjusted.
[0022] Working principle: The operator moves the sliding plate 10 at the bottom of the sliding seat 8 laterally on the sliding groove 3 of the limit adjustment track plate 1. Combined with the scale line 2 in the middle of the limit adjustment track plate 1, the operator precisely adjusts the spacing between each cutting part 5. After adjusting to the target position, the locking threads 9 on both sides are rotated so that the front end tightly presses against the side wall of the limit adjustment track plate 1, thus achieving a stable fixation of the cutting part 5 and ensuring that the position does not shift during the cutting process. The first motor 11 drives the adjusting support arm 6 to rotate within the sliding seat 8. The rotation angle is monitored in real time by the angle sensor 7. When the adjusting support arm 6 rotates to the working angle, such as vertical, the angle sensor 7 sends a signal to confirm that the cutting blade is in working condition. If the cutting part needs to be stopped, the adjusting support arm 6 is rotated to the non-working angle, such as horizontal. At this time, the cutting blade 12 is raised and removed from the protective film surface to avoid affecting the operation of other cutting blades 12. The electric push rod 15 pushes the lifting adjustment column 14 to slide up and down at the end of the adjusting support arm 6, precisely controlling the cutting blade 12. 2. The distance between the cutting blade 12 and the protective film surface, the second electric motor, 13 drives the cutting blade 12 to rotate at high speed. When the cutting blade 12 descends to contact the protective film, the cutting operation can be performed. By independently controlling the lifting and rotation of each cutting blade 5, the layered activation of multiple cutting blades 12 can be achieved. The unactivated cutting blades 12 are lifted and rotated to a non-working position to avoid interference. This device adopts a modular design, and the number of cutting sections 5 can be increased or decreased according to the width requirements of the protective film. When adding a cutting section 5, its sliding seat 8 is inserted into the blank sliding slot 3 area of the limit adjustment track plate 1, the position is adjusted and fixed according to the above process. When reducing the cutting section, the locking thread 9 is loosened directly and the corresponding module is removed. The operation is simple and does not affect the operation of other components. This device, through the combination of mechanical adjustment and electric control, realizes the precise adjustment of the cutting spacing, the independent start and stop of the cutting blade 12 and the height control, effectively solving the problems of mutual interference and cumbersome adjustment of cutting blades in traditional equipment, and significantly improving the flexibility and efficiency of protective film cutting.
[0023] 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 protective film cutting device for easy adjustment of cutting size, comprising a limiting adjustment track plate (1), a sliding groove (3), a fixing plate (4), and a cutting part (5), characterized in that: The fixing plate (4) is fixedly installed at both ends of the limiting adjustment track plate (1), the sliding slot (3) is opened on the limiting adjustment track plate (1), and the cutting part (5) is evenly distributed on the limiting adjustment track plate (1).
2. The protective film cutting device for easy adjustment of cutting size according to claim 1, characterized in that: The cutting section (5) includes an adjusting support arm (6), a sliding seat (8), a locking threaded column (9), a sliding plate (10), a first motor (11), a cutting blade (12), a second motor (13), a lifting adjusting column (14), and an electric push rod (15). The sliding plate (10) is symmetrically fixed inside the bottom end of the sliding seat (8). The locking threaded column (9) is symmetrically threaded and rotatably inserted into both sides of the sliding seat (8). The adjusting support arm (6) is rotatably locked inside the upper end of the sliding seat (8). The first motor (11) is fixedly installed on the outer side of the upper end of the sliding seat (8), and the driving end of the first motor (11) is connected to the... The adjusting support arm (6) is fixedly connected to the sliding seat (8) and the lifting adjusting column (14) is slidably connected to the end of the adjusting support arm (6) away from the sliding seat (8). The electric push rod (15) is symmetrically fixedly installed on the adjusting support arm (6) and the upper end of the electric push rod (15) is fixedly connected to the upper end of the lifting adjusting column (14). The cutting blade (12) is rotatably connected to the bottom end of the lifting adjusting column (14). The second motor (13) is fixedly installed on the outside of the bottom end of the lifting adjusting column (14) and the driving end of the second motor (13) is fixedly connected to the middle part of the cutting blade (12).
3. The protective film cutting device for easy adjustment of cutting size according to claim 2, characterized in that: An angle sensor (7) is provided on the side of the sliding bracket (8) away from the first motor (11), and the adjustment support arm (6) is connected to the angle sensor (7) on the side of the sliding bracket (8) away from the first motor (11).
4. The protective film cutting device for easy adjustment of cutting size according to claim 3, characterized in that: The sliding bracket (8) is slidably engaged with the limit adjustment track plate (1) through the sliding plate (10) and the sliding slot (3).
5. A protective film cutting device for easy adjustment of cutting size according to claim 4, characterized in that: The upper end face of the limit adjustment track plate (1) is provided with a scale line (2).
6. The protective film cutting device for easy adjustment of cutting size according to claim 5, characterized in that: The edge of the sliding bracket (8) is located directly above the scale line (2).