Low-haze PET window film slitting device
Through the dual distance adjustment and height adjustment mechanism, combined with contact guide and multi-cutting technology, the accuracy and efficiency of the traditional PET window film slitting device are solved, and the efficient and stable slitting of the low-haze PET window film is achieved.
Patent Information
- Application Number
- CN202510639962.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-19
- Publication Date
- 2025-07-11
AI Technical Summary
Traditional PET window film slitting devices are difficult to achieve accurate and efficient slitting. The cutting knife position adjustment depends on manual, and the window film conveying is unstable, resulting in low product quality and production efficiency.
The dual distance adjustment mechanism and height adjustment mechanism are adopted, combined with the contact guide mechanism and multi-cutting technology, to achieve accurate control of the slitting position and stable conveying of the window film, and automatic operation is achieved through electronic control equipment.
It realizes accurate and efficient slitting of PET window film, reduces manual adjustment time, improves production efficiency and product quality, and avoids deviation and wrinkles of window film during slitting.
Smart Images
Figure CN120288568A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of slitting devices, and particularly to a slitting device for low haze PET window films. Background Art
[0002] Due to its excellent optical properties such as high light transmittance and low haze, low haze PET window films are widely used in fields such as construction and automobiles. In the production process of window films, slitting is a crucial link, directly affecting the final quality and production efficiency of window films.
[0003] Traditional PET window film slitting devices have many problems and are difficult to meet the current requirements for precise and efficient slitting of low haze PET window films. The adjustment of the cutter position of existing slitting equipment mostly relies on manual operation, which not only consumes time but also is difficult to ensure the high precision of the cutter position, resulting in large deviations in the width dimensions of the slit window films and low product qualification rates. Traditional equipment usually uses a single cutter or a small number of cutters for slitting, with a slow slitting speed and unable to meet the needs of large-scale production. At the same time, the equipment has insufficient control over the conveying stability of the window film during slitting, and problems such as wrinkles and offsets are likely to occur in the window film, requiring frequent shutdown adjustments, seriously affecting the slitting efficiency. Therefore, it is of great practical significance to develop a device that can continuously slit low haze PET window films precisely and efficiently. Summary of the Invention
[0004] Based on the technical problems existing in the background art, the present invention proposes a slitting device for low haze PET window films.
[0005] The slitting device for low haze PET window films proposed by the present invention includes a box body. One outer wall of the box body is rotatably connected with a cover plate. Four corners of the bottom outer wall of the box body are fixedly connected with support feet. An inlet slot is opened on the top outer wall of the box body. A coiling mechanism is arranged on the top of the inlet slot. One side inner wall of the box body is fixedly connected with a side plate. A lifting plate is arranged on the outer wall of the side plate. A height adjustment mechanism is arranged between the lifting plate and the side plate. Two ends of one side outer wall of the lifting plate are both provided with connecting plates. A contact guiding mechanism is arranged on the outer wall of the connecting plates. A first distance adjustment mechanism is arranged between the connecting plates. Two ends of the inner wall of the box body are both provided with moving frames. A slitting mechanism is arranged on the outer wall of the moving frames. A second distance adjustment mechanism is arranged between the moving frames.
[0006] Preferably, the height adjustment mechanism includes a second slider and a second motor. A second chute is opened on the outer wall of the side plate. The second slider is slidably connected with the second chute. The second slider is threadedly connected with a threaded lead screw. The bottom of the threaded lead screw is fixedly connected with the second motor. The second motor is fixedly connected with the box body. The second slider is fixedly connected with the lifting plate.
[0007] Preferably, the first distance adjustment mechanism includes a third slider and a third motor. A third chute is provided on the outer wall of the lifting plate. The third slider is slidably connected to both ends of the inner wall of the third chute. The third slider is threadedly connected to a second double-threaded screw rod. One end of the second double-threaded screw rod is fixedly connected to the third motor, and the third motor is fixedly connected to the lifting plate.
[0008] Preferably, the contact feeding mechanism includes a feeding roller and a rotating rod. A plurality of mounting bolts are threadedly connected to the outer wall of the connecting plate. The mounting bolts are threadedly connected to the third slider. The rotating rod is rotatably connected to the connecting plate. The feeding roller is fixedly connected to the rotating rod. A limiting block is threadedly connected to one side of the rotating rod. An anti-slip sleeve is fixedly connected to the outer wall of the feeding roller.
[0009] Preferably, the slitting mechanism includes a tool holder and a slitting knife. The tool holder is fixedly connected to the moving frame, and the slitting knife is fixedly connected to the tool holder.
[0010] Preferably, the first distance adjustment mechanism includes a first slider and a first motor. A first chute is provided on one side of the inner wall of the box body. The first slider is slidably connected to both ends of the inner wall of the first chute. The first slider is threadedly connected to a first double-threaded screw rod. One end of the first double-threaded screw rod is fixedly connected to the first motor, and the first motor is fixedly connected to the box body. The first slider is fixedly connected to the moving frame.
[0011] Preferably, the coiling mechanism includes a coiling motor and a winding roller. Equipment brackets are provided on both sides of the outer wall of the top of the feeding groove. The equipment brackets are fixedly connected to the box body. A rotating shaft is rotatably connected to the inner wall of the equipment bracket. The winding roller is fixedly connected to the rotating shaft. The coiling motor is located on one side of the box body, and the coiling motor is fixedly connected to the equipment bracket and the rotating shaft respectively.
[0012] Compared with the prior art, the present invention provides a slitting device for low haze PET window film, which has the following beneficial effects:
[0013] 1. For this slitting device for low haze PET window film, precise control of the slitting position is achieved through a dual distance adjustment mechanism. The second distance adjustment mechanism drives the moving frame to move horizontally on the inner wall of the box body, and can synchronously adjust the distance between the two slitting knives on both sides to meet the slitting requirements of window films with different widths. The first distance adjustment mechanism adjusts the distance between the connecting plates, and cooperates with the contact feeding mechanism to stabilize the window film conveying path, avoiding deviation caused by uneven tension during slitting. The height adjustment mechanism can lift the lifting plate to adapt to window film coils with different thicknesses, realizing a rapid switch of multi-level slitting operations, reducing the manual adjustment time, and improving the slitting efficiency.
[0014] 2. The low haze PET window film slitting device increases the friction with the window film through the anti-slip sleeve on the outer wall of the feeding roller of the contact feeding mechanism, and cooperates with the limiting block of the rotating rod to prevent the axial movement of the feeding roller, ensuring that the window film is conveyed in a straight line during the slitting process and avoiding wrinkles or offsets. The coiling mechanism adopts frequency conversion control and is linked with the slitting speed in real time to realize the continuous coiling of the window film and reduce the number of times of stopping to change the coil. The multiple tool holders and slitting knives of the slitting mechanism can install multiple blades at the same time, and the moving frame is synchronously driven by the first motor to realize multi-knife slitting in one feeding. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 FIG. is a schematic diagram of the main structure of the low haze PET window film slitting device proposed by the present invention;
[0016] Figure 2 FIG. is a schematic diagram of the main structure of the back of the low haze PET window film slitting device proposed by the present invention;
[0017] Figure 3 FIG. is a schematic sectional view of the low haze PET window film slitting device proposed by the present invention;
[0018] Figure 4 is Figure 3 the enlarged structural view at A in
[0019] Figure 5 FIG. is a schematic diagram of the main structure of the contact feeding mechanism of the low haze PET window film slitting device proposed by the present invention;
[0020] Figure 6 FIG. is a schematic diagram of the main structure of the slitting mechanism of the low haze PET window film slitting device proposed by the present invention.
[0021] In the figure: 1 box body, 2 coiling motor, 3 coiling roller, 4 feeding groove, 5 rotating shaft, 6 equipment support, 7 feet, 8 first motor, 9 second motor, 10 first chute, 11 first double-threaded lead screw, 12 first slider, 13 moving frame, 14 side plate, 15 lifting plate, 16 lead screw, 17 second chute, 18 second slider, 19 third motor, 20 anti-slip sleeve, 21 rotating rod, 22 limiting block, 23 connecting plate, 24 mounting bolt, 25 second double-threaded lead screw, 26 third slider, 27 third chute, 28 tool holder, 29 slitting knife, 30 feeding roller, 31 electric control equipment. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.
[0023] Refer to Figures 1-6, a low haze PET window film slitting device, comprising a box body 1. One outer wall of the box body 1 is rotatably connected with a cover plate. Four corners of the bottom outer wall of the box body 1 are fixedly connected with supporting feet 7. A feeding groove 4 is opened on the top outer wall of the box body 1. A coiling mechanism is arranged at the top of the feeding groove 4. One side inner wall of the box body 1 is fixedly connected with a side plate 14. A lifting plate 15 is arranged on the outer wall of the side plate 14. A height adjusting mechanism is arranged between the lifting plate 15 and the side plate 14. Both ends of one side outer wall of the lifting plate 15 are provided with connecting plates 23. A contact guiding mechanism is arranged on the outer wall of the connecting plates 23. A first distance adjusting mechanism is arranged between the connecting plates 23. Both ends of the inner wall of the box body 1 are provided with moving frames 13. A slitting mechanism is arranged on the outer wall of the moving frames 13. A second distance adjusting mechanism is arranged between the moving frames 13. The accurate control of the slitting position is realized through the double distance adjusting mechanisms. The second distance adjusting mechanism drives the moving frames 13 to move horizontally on the inner wall of the box body 1, and the distance between the two slitting knives 29 can be adjusted synchronously to meet the slitting requirements of window films with different widths. The first distance adjusting mechanism adjusts the distance between the connecting plates 23, and cooperates with the contact guiding mechanism to stabilize the conveying path of the window film, avoiding deviation caused by uneven tension during slitting. The height adjusting mechanism can lift the lifting plate 15 to adapt to window film coils with different thicknesses, realizing the rapid switching of multi-level slitting operations, reducing the manual adjustment time and improving the slitting efficiency.
[0024] In the present invention, the height adjusting mechanism comprises a second slider 18 and a second motor 9. A second sliding groove 17 is opened on the outer wall of the side plate 14. The second slider 18 is slidably connected with the second sliding groove 17. The second slider 18 is threadedly connected with a threaded lead screw 16. The bottom of the threaded lead screw 16 is fixedly connected with the second motor 9. The second motor 9 is fixedly connected with the box body 1. The second slider 18 is fixedly connected with the lifting plate 15, realizing the automatic height adjustment of the lifting plate 15 to adapt to window films with different thicknesses;
[0025] The first distance adjusting mechanism comprises a third slider 26 and a third motor 19. A third sliding groove 27 is opened on the outer wall of the lifting plate 15. The third slider 26 is respectively slidably connected with both ends of the inner wall of the third sliding groove 27. The third slider 26 is threadedly connected with a second double-threaded lead screw 25. One end of the second double-threaded lead screw 25 is fixedly connected with the third motor 19. The third motor 19 is fixedly connected with the lifting plate 15, adjusting the distance between the connecting plates 23 and controlling the clamping tension of the guiding roller 30 on the window film;
[0026] The contact guiding mechanism comprises a guiding roller 30 and a rotating rod 21. A plurality of mounting bolts 24 are threadedly connected to the outer wall of the connecting plate 23. The mounting bolts 24 are threadedly connected with the third slider 26. The rotating rod 21 is rotatably connected with the connecting plate 23. The guiding roller 30 is fixedly connected with the rotating rod 21. A limiting block 22 is threadedly connected to one side of the rotating rod 21. An anti-slip sleeve 20 is fixedly connected to the outer wall of the guiding roller 30, constructing the contact guiding mechanism to stabilize the conveying of the window film and prevent slipping;
[0027] The slitting mechanism includes a tool holder 28 and a slitting knife 29. The tool holder 28 is fixedly connected to the moving frame 13, and the slitting knife 29 is fixedly connected to the tool holder 28. The core components of the slitting mechanism are defined to achieve the cutting of the window film.
[0028] The second distance adjustment mechanism includes a first slider 12 and a first motor 8. A first chute 10 is provided on one side of the inner wall of the box body 1. The first slider 12 is slidably connected to both ends of the inner wall of the first chute 10. The first slider 12 is threadedly connected to a first bidirectional threaded lead screw 11. One end of the first bidirectional threaded lead screw 11 is fixedly connected to the first motor 8, and the first motor 8 is fixedly connected to the box body 1. The first slider 12 is fixedly connected to the moving frame 13 to adjust the lateral spacing of the slitting knife 29 to adapt to different width slitting requirements.
[0029] The coiling mechanism includes a coiling motor 2 and a winding roller 3. Equipment brackets 6 are provided on both sides of the outer wall of the top of the feed chute 4. The equipment brackets 6 are fixedly connected to the box body 1. A rotating shaft 5 is rotatably connected to the inner wall of the equipment brackets 6. The winding roller 3 is fixedly connected to the rotating shaft 5. The coiling motor 2 is located on one side of the box body 1, and the coiling motor 2 is fixedly connected to the equipment brackets 6 and the rotating shaft 5 respectively to achieve the unwinding and winding of the window film coil and ensure continuous slitting.
[0030] During use, the window film coil is installed on the winding roller 3 of the coiling mechanism through the feed chute 4. The coiling motor 2 drives the rotating shaft 5 to drive the winding roller to rotate and unwind. The window film enters the slitting area through the guide roller 30 of the contact guiding mechanism. The second motor 9 of the height adjustment mechanism drives the threaded lead screw 16 to rotate, and the lifting plate 15 is lifted and lowered through the second slider 18 to adjust the height of the guide roller 30 to adapt to the thickness of the window film. The third motor 19 of the first distance adjustment mechanism drives the second bidirectional threaded lead screw 25 to rotate, driving the third slider 26 to move towards or away from each other in the third chute 27 to adjust the spacing of the connecting plate 23, so that the guide roller 30 clamps the window film and maintains a constant tension. The first motor 8 of the second distance adjustment mechanism drives the first bidirectional threaded lead screw 11 to rotate, driving the moving frame 13 to move horizontally through the first slider 12 to adjust the spacing of the slitting knife 29 to the target slitting width. During slitting, the window film is uniformly pulled by the guide roller 30 and passes through the slitting knife 29 to achieve precise slitting. The slit window film is synchronously wound by the winding mechanism. The whole process is automatically controlled by the electric control device 31, and the slitting speed, tension and tool position are monitored in real time to ensure the continuity, high efficiency and precision of the slitting process.
[0031] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.
Claims
1. Low haze PET window film slitting device, including a box body (1), one side outer wall of the box body (1) is rotatably connected with a cover plate, and four corners of the bottom outer wall of the box body (1) are fixedly connected with support feet (7), characterized in that, A feed inlet groove (4) is formed in the outer wall of the top of the box body (1). A coiling mechanism is arranged at the top of the feed inlet groove (4). One side of the inner wall of the box body (1) is fixedly connected with a side plate (14). A lifting plate (15) is arranged on the outer wall of the side plate (14). A height adjusting mechanism is arranged between the lifting plate (15) and the side plate (14). Both ends of one side outer wall of the lifting plate (15) are provided with connecting plates (23). A contact guiding mechanism is arranged on the outer wall of the connecting plates (23). A first distance adjusting mechanism is arranged between the connecting plates (23). Moving frames (13) are arranged at both ends of the inner wall of the box body (1). A slitting mechanism is arranged on the outer wall of the moving frames (13). A second distance adjusting mechanism is arranged between the moving frames (13).
2. The low haze PET window film slitting device according to claim 1, wherein The height adjusting mechanism comprises a second slider (18) and a second motor (9). A second chute (17) is formed in the outer wall of the side plate (14). The second slider (18) is slidably connected with the second chute (17). The second slider (18) is in threaded connection with a threaded lead screw (16). The bottom of the threaded lead screw (16) is fixedly connected with the second motor (9). The second motor (9) is fixedly connected with the box body (1). The second slider (18) is fixedly connected with the lifting plate (15).
3. The low haze PET window film slitting device according to claim 1, wherein The first distance adjusting mechanism comprises a third slider (26) and a third motor (19). A third chute (27) is formed in the outer wall of the lifting plate (15). The third slider (26) is respectively slidably connected with both ends of the inner wall of the third chute (27). The third slider (26) is in threaded connection with a second double-threaded lead screw (25). One end of the second double-threaded lead screw (25) is fixedly connected with the third motor (19). The third motor (19) is fixedly connected with the lifting plate (15).
4. The slitting device for low haze PET window film according to claim 3, characterized in that, The contact guiding mechanism comprises a guiding roller (30) and a rotating rod (21). A plurality of mounting bolts (24) are in threaded connection with the outer wall of the connecting plate (23). The mounting bolts (24) are in threaded connection with the third slider (26). The rotating rod (21) is rotatably connected with the connecting plate (23). The guiding roller (30) is fixedly connected with the rotating rod (21). A limiting block (22) is in threaded connection with one side of the rotating rod (21). An anti-slip sleeve (20) is fixedly connected with the outer wall of the guiding roller (30).
5. The slitting device for low haze PET window film according to claim 1, characterized in that, The slitting mechanism comprises a tool holder (28) and a slitting knife (29). The tool holder (28) is fixedly connected with the moving frame (13). The slitting knife (29) is fixedly connected with the tool holder (28).
6. The low haze PET window film slitting device according to claim 1, characterized in that The second distance adjusting mechanism comprises a first slider (12) and a first motor (8). A first chute (10) is formed in one side of the inner wall of the box body (1). The first slider (12) is respectively slidably connected with both ends of the inner wall of the first chute (10). The first slider (12) is in threaded connection with a first double-threaded lead screw (11). One end of the first double-threaded lead screw (11) is fixedly connected with the first motor (8). The first motor (8) is fixedly connected with the box body (1). The first slider (12) is fixedly connected with the moving frame (13).
7. The low haze PET window film slitting device according to claim 1, characterized in that, The coiling mechanism includes a coiling motor (2) and a winding roller (3). Equipment brackets (6) are arranged on both sides of the outer wall at the top of the feeding chute (4). The equipment brackets (6) are fixedly connected to the box body (1). A rotating shaft (5) is rotatably connected to the inner wall of the equipment bracket (6). The winding roller (3) is fixedly connected to the rotating shaft (5). The coiling motor (2) is located on one side of the box body (1), and the coiling motor (2) is fixedly connected to the equipment bracket (6) and the rotating shaft (5) respectively.