Film slitting machine with high slitting neatness
By adjusting the slitting blade position through the combination of a bidirectional lead screw and a cutting roller, and by designing a rotating shaft and gear-misaligned take-up roller, the problems of low adjustment efficiency and film adhesion in the slitting machine are solved, achieving high-efficiency and uniform slitting.
Patent Information
- Application Number
- CN202522062729.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-25
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-25
AI Technical Summary
Existing film slitting machines require stopping operation when adjusting the slitting blade distance, which affects efficiency. Furthermore, the slitting films tend to stick together, making it difficult to meet high standards of uniformity.
The system employs a combination of a bidirectional lead screw and a cutting roller to achieve real-time adjustment of the slitting blade position. The winding roller is installed in a staggered manner through a rotating shaft and gear structure to prevent film adhesion.
It improves the efficiency of slitting blade position adjustment, avoids film adhesion, and enhances slitting uniformity and device efficiency.
Smart Images

Figure CN224677478U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of film slitting tools, and in particular to a film slitting machine with high film slitting uniformity. Background Technology
[0002] Film slitting machines are widely used in many industries such as packaging, electronics, and printing. Their function is to slit wide films into several narrow films. As the quality requirements of film products in various industries continue to increase, higher standards are also being set for the slitting uniformity of film slitting machines. However, existing film slitting machines still have some problems in actual operation, making it difficult to achieve the ideal slitting uniformity. Traditional cutting methods involve installing unwinding and take-up rollers at both ends of the device, with a cutting blade installed between them. The cutting blade is fixed in place according to the required cutting width. However, this structure requires stopping the device to adjust the cutting blade distance when different width requirements are met, which affects work efficiency. Furthermore, in existing devices, multiple cut films are mounted on a single take-up roller during winding, causing adjacent films to stick together. Therefore, these problems need to be addressed. Utility Model Content
[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a film slitting machine with high film slitting uniformity.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: a film slitting machine with high film slitting uniformity, comprising a mounting frame and mounting plates on both sides of the middle of the top surface of the mounting frame, a release roller is rotatably mounted on the inner side of the front end of the mounting frame, a guide roller is mounted obliquely behind the release roller, the guide roller is rotatably mounted on the inner side of the mounting frame, and a winding mechanism is mounted on the rear end of the mounting frame, and a slitting mechanism is mounted between the mounting plates.
[0005] Preferably, the slitting mechanism includes two first motors mounted on one side of the mounting plate and two sets of positioning components mounted on the inner sides of the two mounting plates. The output end of the first motor is equipped with a bidirectional lead screw via a coupling, and two slitting blades are threaded onto the bidirectional lead screw.
[0006] Preferably, a cutting roller is sleeved on the outer side of the bidirectional lead screw, and a limiting groove for cooperating with the movement of the slitting blade is formed through the cutting roller.
[0007] Preferably, the positioning assembly consists of two positioning rollers, one above the other, and the two sets of positioning assemblies are respectively located on the front end faces of the two cutting rollers.
[0008] Preferably, the winding mechanism includes a second motor mounted on one side of the mounting frame and two rotating shafts mounted on the inner side of the mounting frame. A first gear is mounted on the output shaft of the second motor, and the upper and lower ends of the first gear are meshed with second gears. The two rotating shafts are respectively fixed at the center of the corresponding second gears.
[0009] Preferably, multiple take-up rollers are installed on both of the rotating shafts, and the multiple take-up rollers on the two rotating shafts are installed in a staggered manner.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model, through the cooperation of a bidirectional lead screw and a cutting roller, facilitates the adjustment of the slitting blade position according to the required film width, thereby enabling the cutting of films of different widths as needed, without requiring the device to be stopped, saving changeover time and improving work efficiency. Furthermore, through the cooperation of two rotating shafts, a first gear, and a second gear, it facilitates both the simultaneous rotation of the two shafts and the staggered installation of the winding roller, thus ensuring that adjacent films are staggered during winding, preventing them from sticking together and improving the device's yield rate. Ultimately, it solves the problems of existing devices being inconvenient to adjust the distance between the slitting blades and the adhesion of adjacent films after cutting. Attached Figure Description
[0011] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall three-dimensional structure of the device proposed in this utility model; Figure 2 This is a schematic diagram of the slitting mechanism proposed in this utility model; Figure 3 This is a schematic diagram of the winding mechanism proposed in this utility model; Figure 4 The present utility model proposes Figure 1 Enlarged schematic diagram of the structure at part A in the middle; Figure 5 The present utility model proposes Figure 2 Enlarged schematic diagram of the structure of part B in the middle; Figure 6 The present utility model proposes Figure 3 Enlarged schematic diagram of the structure at part C.
[0012] The numbers in the diagram are: 1. Mounting frame; 2. Mounting plate; 3. Unloading roller; 4. Guide roller; 5. First motor; 6. Positioning roller; 7. Bidirectional lead screw; 8. Slitting knife; 9. Cutting roller; 10. Second motor; 11. Rotating shaft; 12. First gear; 13. Second gear; 14. Rewinding roller. Detailed Implementation
[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0014] Example: See Figure 1-6 This utility model discloses a film slitting machine with high film slitting uniformity, comprising a mounting frame 1 and mounting plates 2 on both sides of the center of the top surface of the mounting frame 1. The mounting frame 1 facilitates the installation of a slitting mechanism and a winding mechanism. A release roller 3 is rotatably mounted on the inner side of the front end of the mounting frame 1, facilitating the installation of unslit film. A guide roller 4 is mounted obliquely behind the release roller 3, facilitating auxiliary winding. The guide roller 4 is rotatably mounted inside the mounting frame 1, and a winding mechanism is mounted at the rear end of the mounting frame 1. A slitting mechanism is installed between the mounting plates 2, and the slitting mechanism includes a slitting mechanism mounted on one side of the mounting plate 2. The system includes two first motors 5 and two sets of positioning components installed inside the two mounting plates 2. The first motors 5 facilitate the rotation of the bidirectional lead screw 7. The output end of the first motor 5 is connected to the bidirectional lead screw 7 via a coupling. The bidirectional lead screw 7 facilitates the adjustment of the distance between the two slitting blades 8 according to the required width. The bidirectional lead screw 7 is threaded with two slitting blades 8, which facilitate the equidistant cutting of the film. A cutting roller 9 is sleeved on the outside of the bidirectional lead screw 7, which facilitates the movement of the slitting blades 8. The cutting roller 9 has a through-hole limiting groove that cooperates with the movement of the slitting blades 8.
[0015] In this invention, the positioning assembly consists of two positioning rollers 6, one above the other, which help prevent the film from shifting during the slitting process. The two positioning assemblies are located on the front ends of the two cutting rollers 9. The winding mechanism includes a second motor 10 mounted on one side of the mounting frame 1 and two rotating shafts 11 mounted on the inner side of the mounting frame 1. The second motor 10 drives the first gear 12 to rotate, and the first gear 12 drives the second gear 13 to rotate. The first gear 12 is mounted on the output shaft of the second motor 10, which allows the two second gears 13 to rotate in the same direction. The upper and lower ends of the first gear 12 are meshed with the second gears 13, which drive the rotating shafts 11 to rotate. The two rotating shafts 11 are fixedly connected to the centers of the corresponding second gears 13. Multiple winding rollers 14 are mounted on each of the two rotating shafts 11, which facilitate the winding of the slitting film. The multiple winding rollers 14 on the two rotating shafts 11 are staggered.
[0016] Working principle: When using this invention, firstly, the power is turned on and the first motor 5 is turned on. According to the required width of the film, the first motor 5 drives the bidirectional lead screw 7 to rotate, which in turn drives the slitting blade 8 to move. Then, the first motor 5 is turned off. The film on the unloading roller 3 is manually pulled out and cut by the slitting blade 8 with the cooperation of the cutting roller 9 after passing through the guide roller 4 and the positioning roller 6. Then, the cut film is installed on different take-up rollers 14. Then, the first motor 5 and the second motor 10 are turned on. The second motor 10 drives the first gear 12 to rotate. With the cooperation of the first gear 12, the two second gears 13 drive the two rotating shafts 11 to rotate in the same direction. Then, multiple take-up rollers 14 rotate simultaneously, driving the unloading roller 3 to rotate and pulling the film towards the slitting mechanism. The positioning roller 6 can prevent the film position from shifting due to the increased tension during the slitting process. After the multiple slitting blades 8 cut the film, it is wound around the take-up roller 14. After the cutting is completed, the power is turned off and the take-up roller 14 is removed.
[0017] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A film slitting machine with high film slitting uniformity, comprising a mounting frame (1) and mounting plates (2) on both sides of the center of the top surface of the mounting frame (1), characterized in that: The mounting frame (1) has a release roller (3) rotatably mounted on the inner side of its front end. A guide roller (4) is mounted obliquely behind the release roller (3). The guide roller (4) is rotatably mounted on the inner side of the mounting frame (1). A winding mechanism is mounted at the rear end of the mounting frame (1). A slitting mechanism is mounted between the mounting plates (2).
2. The film slitting machine with high film slitting uniformity according to claim 1, characterized in that: The slitting mechanism includes two first motors (5) installed on one side of the mounting plate (2) and two sets of positioning components installed on the inner side of the two mounting plates (2). The output end of the first motor (5) is equipped with a bidirectional lead screw (7) through a coupling. Two slitting blades (8) are threaded onto the bidirectional lead screw (7).
3. A film slitting machine with high film slitting uniformity according to claim 2, characterized in that: The bidirectional lead screw (7) is sleeved with a cutting roller (9), and the cutting roller (9) is provided with a limiting groove that moves in conjunction with the slitting knife (8).
4. A film slitting machine with high film slitting uniformity according to claim 2, characterized in that: The positioning component consists of two positioning rollers (6) on the top and bottom, and the two positioning components are located on the front end face of the two cutting rollers (9).
5. A film slitting machine with high film slitting uniformity according to claim 1, characterized in that: The winding mechanism includes a second motor (10) installed on one side of the mounting frame (1) and two rotating shafts (11) installed on the inner side of the mounting frame (1). A first gear (12) is installed on the output shaft of the second motor (10). The upper and lower ends of the first gear (12) are meshed with second gears (13). The two rotating shafts (11) are fixed at the center of the corresponding second gears (13).
6. A film slitting machine with high film slitting uniformity according to claim 5, characterized in that: Multiple take-up rollers (14) are installed on both of the two rotating shafts (11), and the multiple take-up rollers (14) on the two rotating shafts (11) are installed in a staggered manner.