A film slitting cutter adjustment device

Abstract

This utility model relates to the field of film slitting technology and discloses a film slitting cutter adjustment device, including a cutter shaft. An adjustment mechanism is provided inside the cutter shaft. The adjustment mechanism includes a mounting base, a hinge rod, and an adjustment assembly. The mounting base is located inside the cutter shaft, and one end of the hinge rod is hinged to the mounting base. This utility model achieves synchronous and equidistant adjustment of multiple circular cutters through the adjustment mechanism. It eliminates the need for manual loosening, moving, and locking of each circular cutter individually. The spacing of all circular cutters can be simultaneously enlarged or reduced by an electric push rod, significantly shortening adjustment time and effectively improving production efficiency. By setting the hinge rod, moving block, and adjustment frame, multiple mounting bases can move synchronously along the fixed rod, ensuring uniform spacing of each circular cutter and avoiding spacing deviations caused by operational errors during manual adjustment. This ensures the accuracy of the film slitting width and improves product quality.

Description

Technical Field

[0001] This utility model relates to the field of film slitting technology, specifically to a film slitting cutter adjustment device. Background Technology

[0002] During the film slitting process, the slitting machine uses circular cutters to cut the roll film longitudinally or laterally to obtain finished films of different widths. To meet the slitting requirements of different specifications, the spacing between the circular cutters needs to be frequently adjusted to ensure accurate slitting dimensions. Currently, traditional cutter adjustment methods mostly rely on manual operation. Operators need to loosen the bolts fixing the cutters one by one, manually move the cutters to the target position, and then tighten them again.

[0003] However, manual adjustment is not only time-consuming and labor-intensive, affecting production efficiency, but also prone to causing deviations in the distance between the circular cutters, resulting in deviations in the film slitting width and affecting product quality. Therefore, a film slitting cutter adjustment device is proposed to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of this invention is to provide a cutting blade adjustment device for film slitting, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: a film slitting cutter adjustment device, including a cutter shaft, wherein an adjustment mechanism is provided inside the cutter shaft, and the adjustment mechanism includes a mounting base, a hinge rod and an adjustment component;

[0006] The mounting base is located inside the cutter shaft, one end of the hinge rod is hinged to the mounting base, and the adjustment component is located on the mounting base.

[0007] Preferably, the adjustment assembly includes a movable block, an adjustment frame, and an electric push rod. The movable block is slidably connected to the inner wall of the mounting base and is hinged to the other end of the hinge rod. The movable block is slidably connected to the inner wall of the adjustment frame through movable rods on both sides. The electric push rod is connected to the bottom of the adjustment frame.

[0008] Preferably, the mounting base is provided with a fixing mechanism, which includes a positioning hole, a positioning groove, and a positioning rod. The positioning hole is formed on the inner wall of the cutter shaft, the positioning groove is formed on the side of the mounting base, and one end of the positioning rod is slidably connected to the inner wall of the positioning groove.

[0009] Preferably, there are several positioning holes, which are distributed in a line at equal intervals inside the cutter shaft, and the other end of the positioning rod is inserted into one of the positioning holes.

[0010] Preferably, the top of the cutter shaft is provided with a movable groove, the top of the mounting base is fixed with a mounting block, and the mounting block is slidably connected to the inner wall of the movable groove. A circular cutter is fixed on the mounting block by bolts.

[0011] Preferably, the mounting base is provided with a fixing mechanism, which includes a positioning hole, a positioning groove, and a positioning rod. The positioning hole is formed on the inner wall of the cutter shaft, the positioning groove is formed on the side of the mounting base, and the positioning rod is slidably connected to the inner walls of the positioning hole and the positioning groove, respectively.

[0012] Preferably, the inner wall of the positioning groove is connected to the positioning rod by a spring, and an electromagnet is installed on the inner wall of the positioning groove.

[0013] The present invention adopts the above technical solution, which can bring the following beneficial effects:

[0014] 1. This film slitting cutter adjustment device achieves synchronous and equidistant adjustment of multiple circular cutters through an adjustment mechanism. It eliminates the need for manual loosening, moving, and locking of each circular cutter individually; the spacing of all circular cutters can be simultaneously enlarged or reduced simply by an electric push rod. This significantly shortens adjustment time and effectively improves production efficiency. By setting a hinge rod, a moving block, and an adjustment frame, multiple mounting bases can move synchronously along the fixed rod, ensuring uniform spacing between the circular cutters and avoiding spacing deviations caused by operational errors during manual adjustment. This guarantees the accuracy of the film slitting width and improves product quality.

[0015] 2. This film slitting cutter adjustment device automatically unlocks during the adjustment phase through the cooperation of an electromagnet and a positioning rod. After adjustment, it is reset by a spring to achieve positioning, ensuring that the circular cutter will not be displaced due to vibration or other factors during the rotational slitting process. This significantly improves the stability of equipment operation, reduces the impact of circular cutter shaking on the slitting effect, and further improves product quality.

[0016] 3. This film slitting cutter adjustment device, through the provision of a conductive slip ring, enables the electric push rod and electromagnet to rotate with the cutter shaft without affecting the power transmission of the electric push rod and electromagnet, thereby ensuring the stability of the circular cutter adjustment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0018] Figure 2 This is a front sectional view of the present invention;

[0019] Figure 3 This is a schematic diagram of the structure of this utility model;

[0020] Figure 4 This is a partial schematic diagram of the adjustment mechanism of this utility model;

[0021] Figure 5 This is a sectional view of the mounting base of this utility model;

[0022] Figure 6 This is a partial view of the fixing mechanism of this utility model.

[0023] In the diagram: 1. Cutter shaft; 2. Adjustment mechanism; 21. Fixed rod; 22. Mounting base; 23. Moving block; 24. Moving rod; 25. Hinge rod; 26. Adjustment frame; 27. Electric push rod; 28. Mounting block; 3. Circular cutter; 4. Fixed mechanism; 41. Positioning hole; 42. Positioning groove; 43. Positioning rod; 44. Spring; 45. Electromagnet; 5. Connecting shaft; 6. Conductive slip ring. Detailed Implementation

[0024] 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.

[0025] Please see Figure 1-6 One embodiment of this utility model is: a film slitting cutter adjustment device, including a cutter shaft 1, with connecting shafts 5 on both sides of the cutter shaft 1 for mounting the cutter shaft 1 on a slitting machine, a gear on the left connecting shaft 5 for linkage with an external motor to realize the rotation of the cutter shaft 1, driving the circular cutter 3 to slitting the film, and a conductive slip ring 6 on the right connecting shaft 5 for power transmission with the electric push rod 27 and electromagnet 45 inside the cutter shaft 1;

[0026] An adjustment mechanism 2 is provided inside the cutter shaft 1. The adjustment mechanism 2 includes a mounting base 22, a hinge rod 25, and an adjustment assembly. The mounting base 22 is located inside the cutter shaft 1, and there are nine mounting bases 22. The middle mounting base 22 is fixedly connected to the inner wall of the cutter shaft 1, and the other eight mounting bases 22 are slidably connected to the fixed rod 21. The adjustment assembly is located on the mounting base 22 and includes a moving block 23, an adjustment frame 26, and an electric push rod 27. The moving block 23 is slidably connected to the inner wall of the mounting base 22. One end of the hinge rod 25 is hinged to the mounting base 22, and the other end of the hinge rod 25 is hinged to the moving block 23 on the adjacent mounting base 22. Moving rods 24 are provided on both sides of the moving block 23, and the moving rods 24 are connected to the adjustment frame 26. The inner wall of the cutter shaft 1 is slidably connected, and a fixed rod 21 is fixedly connected inside the cutter shaft 1. The fixed rod 21 movably passes through nine mounting seats 22. An electric push rod 27 is fixedly installed on the top of the fixed rod 21. The electric push rod 27 is connected to the bottom of the adjustment frame 26. There are two electric push rods 27, which are respectively set on both sides of the adjustment frame 26. Setting two electric push rods 27 can improve the stability of the adjustment frame 26 in raising and lowering. A moving groove is opened on the top of the cutter shaft 1. A mounting block 28 is fixed on the top of the mounting seat 22, and the mounting block 28 is slidably connected to the inner wall of the moving groove. A circular cutter 3 is fixed on the mounting block 28 by bolts. The electric push rod 27 is electrically connected to the conductive slip ring 6 so that the electric push rod 27 will not affect the power transmission when rotating.

[0027] Working principle: Each circular cutter 3 is bolted to each mounting block 28. When the distance between the circular cutters 3 needs to be adjusted, the electric push rod 27 is activated to move the adjusting frame 26 up and down. When the adjusting frame 26 moves upward, it will move the moving block 23 upward through the moving rod 24. Since the mounting seat 22 in the middle is fixed, the rising of the moving block 23 on it will move the mounting seats 22 on both sides towards the middle through the hinge rod 25. At the same time, the moving blocks 23 on the two sides move towards the middle, which will move the adjacent mounting seats 22 towards the middle. Thus, multiple mounting seats 22 move towards the middle synchronously, thereby synchronously reducing the distance between the circular cutters 3. Similarly, when the electric push rod 27 moves the adjusting frame 26 downward, it will move multiple mounting seats 22 outward synchronously through the moving block 23 and the hinge rod 25, thereby synchronously increasing the distance between the circular cutters 3. This achieves equal distance adjustment of the circular cutters 3 without the need for manual adjustment one by one, saving time, reducing manual intervention, and increasing adjustment accuracy.

[0028] Please see Figure 1-6Based on the above embodiments, in another embodiment of this utility model, a fixing mechanism 4 is provided on the mounting base 22. The fixing mechanism 4 includes a positioning hole 41, a positioning groove 42, and a positioning rod 43. The positioning hole 41 is opened on the inner wall of the cutter shaft 1, and there are several positioning holes 41. The several positioning holes 41 are distributed in a line at equal intervals inside the cutter shaft 1. The positioning groove 42 is opened on the side of the mounting base 22. The positioning rod 43 is slidably connected to the inner wall of the positioning groove 42. The other end of the positioning rod 43 is inserted into one of the positioning holes 41. The material of the positioning rod 43 is a permanent magnet material, which can react with the electromagnet 45 and generate an attractive force. A spring 44 is provided inside the positioning groove 42. The two ends of the spring 44 are respectively connected to the inner wall of the positioning groove 42 and one end of the positioning rod 43. An electromagnet 45 is installed on the inner wall of the positioning groove 42, and the electromagnet 45 is electrically connected to the conductive slip ring 6 so that the electromagnet 45 will not affect the power transmission when rotating.

[0029] Working principle: Before adjusting the circular cutter 3, the electromagnet 45 is energized through the conductive slip ring 6. At this time, the electromagnet 45 generates magnetism, thereby attracting the positioning rod 43 made of permanent magnet material. The positioning rod 43 moves into the positioning groove 42, thereby separating the positioning rod 43 from the positioning hole 41 and releasing the restriction on the mounting base 22. At this time, the position of the mounting base 22 can be adjusted. After the adjustment is completed, the electromagnet 45 is de-energized. At this time, under the action of the spring 44, the positioning rod 43 moves out of the positioning groove 42, so that the positioning rod 43 is reinserted into the positioning hole 41, thereby fixing the mounting base 22. After the adjustment is completed, the mounting base 22 cannot move again, avoiding displacement of the circular cutter 3 due to vibration and other factors when cutting the film, thus ensuring the stability of the circular cutter 3 during operation.

[0030] This utility model provides a cutting blade adjustment device for film slitting. There are many methods and approaches to implement this technical solution. The above description is only a preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model. All components not explicitly stated in this embodiment can be implemented using existing technology.

Claims

1. A film slitting cutter adjustment device comprising a cutter shaft (1), characterized in that: The cutter shaft (1) is provided with an adjustment mechanism (2), which includes a mounting base (22), a hinge rod (25), and an adjustment assembly; The mounting base (22) is located inside the cutter shaft (1), one end of the hinge rod (25) is hinged to the mounting base (22), and the adjustment component is located on the mounting base (22).

2. The cutting knife adjustment device for film slitting according to claim 1, characterized in that: The adjustment assembly includes a movable block (23), an adjustment frame (26), and an electric push rod (27). The movable block (23) is slidably connected to the inner wall of the mounting base (22), and the movable block (23) is hinged to the other end of the hinge rod (25). The movable block (23) is slidably connected to the inner wall of the adjustment frame (26) through the movable rods (24) on both sides. The electric push rod (27) is connected to the bottom of the adjustment frame (26).

3. The cutting knife adjustment device for film slitting according to claim 2, characterized in that: The number of mounting seats (22) is several. The mounting seat (22) located in the middle is fixedly connected to the inner wall of the cutter shaft (1). A fixing rod (21) is fixedly connected inside the cutter shaft (1). The fixing rod (21) moves through several mounting seats (22). The electric push rod (27) is fixedly installed on the top of the fixing rod (21).

4. The cutting knife adjustment device for film slitting according to claim 3, wherein: The top of the cutter shaft (1) is provided with a moving groove, and the top of the mounting base (22) is fixed with a mounting block (28), and the mounting block (28) is slidably connected to the inner wall of the moving groove. A circular cutter (3) is fixed on the mounting block (28) by bolts.

5. The cutting knife adjustment device for film slitting of claim 4, wherein: The mounting base (22) is provided with a fixing mechanism (4), which includes a positioning hole (41), a positioning groove (42), and a positioning rod (43). The positioning hole (41) is opened on the inner wall of the cutter shaft (1), the positioning groove (42) is opened on the side of the mounting base (22), and one end of the positioning rod (43) is slidably connected to the inner wall of the positioning groove (42).

6. The film slitting cutter adjustment device according to claim 5, characterized in that: The number of positioning holes (41) is several, and the several positioning holes (41) are distributed in a line at equal intervals inside the cutter shaft (1). The other end of the positioning rod (43) is inserted into one of the positioning holes (41).

7. A film slitting cutter adjustment device according to claim 6, characterized in that: The inner wall of the positioning groove (42) is connected to the positioning rod (43) by a spring (44), and an electromagnet (45) is installed on the inner wall of the positioning groove (42).

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