Film cutting device of a film pulling machine

Abstract

The utility model provides a kind of film cutting device of membrane pulling machine, including crossbeam, the first guide rail of being arranged along the length direction of crossbeam is installed on the upper surface of crossbeam, multiple first sliding seat are sleeved on the first guide rail, clamping block is installed on the upper surface of first sliding seat, the blade for cutting film is installed between the clamping block and first sliding seat, positioning screw for limiting the relative position of clamping block and crossbeam is threadedly connected with one side of the upper surface of clamping block, vertical hole is opened in the side of the upper surface of clamping block away from positioning screw, pulling rod is inserted in vertical hole, sharp head is fixedly connected in the lower end of pulling rod, limit ring is equipped in the upper side of sharp head, spring is equipped between limit ring and vertical hole, the side of the upper surface of crossbeam away from first guide rail is installed with detachable rubber strip, the utility model has the following beneficial effects: the position of blade is limited when positioning screw is tightened.

Description

Technical Field

[0001] This utility model relates to a film cutting device for a film stretching machine, belonging to the field of thin film processing. Background Technology

[0002] After the film is formed, during the winding process, the film is guided past the guide roller, support roller, and reversing roller in sequence, thereby restricting the film's conveying path. Multiple blades are evenly arranged on one side of the support roller. When the film passes the support roller, the blades cut the film, creating multiple sections of equal width. To facilitate the slicing of the entire film into sections of various widths, the cutter is connected to the crossbeam through a sliding block and guide rail. Tightening the positioning screw on the sliding block ensures a tight fit between the screw and the crossbeam, thus restricting the position of the cutter. However, when the positioning screw is tightened, the sliding block may slightly shift along the guide rail due to the force applied by the operator, resulting in uneven widths of the sliced ​​film and affecting the slicing quality. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a film cutting device for a film stretching machine to solve the problems mentioned in the background art. When the positioning screw is tightened, the position of the blade is restricted, preventing multiple blades from having different spacing and ensuring the quality of film cutting.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a film cutting device for a film stretching machine, comprising a crossbeam, with side plates mounted at both ends of the crossbeam via adjusting components. A first guide rail arranged along the length of the crossbeam is mounted on the upper surface of the crossbeam. A plurality of first slide blocks are sleeved on the first guide rail. A clamping block is mounted on the upper surface of each first slide block. A blade for cutting the film is installed between the clamping block and the first slide block. A positioning screw for limiting the relative position between the clamping block and the crossbeam is threaded onto one side of the upper surface of the clamping block. A vertical hole is formed on the side of the upper surface of the clamping block away from the positioning screw. A lifting rod is inserted into the vertical hole. A pointed tip is fixedly connected to the lower end of the lifting rod. A limiting ring is provided on the upper side of the pointed tip. The limiting ring is sleeved on the lifting rod and fixedly connected to it. A spring is provided between the limiting ring and the vertical hole. The spring is sleeved on the lifting rod. A detachable rubber strip is mounted on the side of the upper surface of the crossbeam away from the first guide rail. The pointed tip pierces into the rubber strip. The lower end of the positioning screw contacts the rubber strip.

[0005] Furthermore, the lower surface of the clamping block is recessed to form a groove, an adjusting rod is inserted into the groove, and an inclined blade is installed in a notch at one end of the adjusting rod. The upper surface of the clamping block is threaded with a clamping screw for limiting the relative position between the adjusting rod and the clamping block.

[0006] Furthermore, the adjusting component includes a cylinder, and a cylinder is rotatably mounted on the opposite surfaces of the two side plates. The movable end of the cylinder is rotatably connected to the end of the crossbeam. A second slide is installed at the lower position of both ends of the crossbeam. A second guide rail is inserted in the second slide. A support is installed at the bottom of the second guide rail by screws. The support is connected and fixed to the side plate.

[0007] Furthermore, the crossbeam has a rectangular cross-section, and a support plate is attached to the side of the crossbeam away from the first guide rail. The support plate has an L-shaped structure, and the horizontal part of the support plate is attached to the top of the crossbeam. The rubber strip is glued to the upper surface of the horizontal part of the support plate, and the vertical part of the support plate is connected to the crossbeam by multiple screws.

[0008] Furthermore, a support roller for supporting the film is provided on one side of the crossbeam, and the two ends of the support roller are rotatably connected to two side plates respectively. A guide roller for guiding the film conveying path is provided diagonally below the support roller, and the two ends of the guide roller are rotatably connected to two side plates respectively. A reversing roller for changing the film conveying direction is provided diagonally above the support roller, and the two ends of the reversing roller are rotatably connected to two side plates respectively.

[0009] Furthermore, a bottom beam is provided directly below the crossbeam, and the two ends of the bottom beam are respectively connected and fixed to two side plates.

[0010] Furthermore, a handle is installed at the upper end of the lifting rod, and the handle is arranged perpendicular to the lifting rod.

[0011] The beneficial effects of this utility model are:

[0012] 1. The pointed end of the lifting rod can penetrate into the rubber strip to form a mechanical positioning point. The spring pushes the limiting ring to keep the pointed end in the inserted state. When the positioning screw is turned, it counteracts the displacement of the first sliding seat and prevents the blade spacing from being incorrect during the tightening of the positioning screw. When the positioning screw is tightened, the position of the blade is limited to prevent multiple blades from having different spacings and to ensure the film slitting quality.

[0013] 2. When the positioning screw is tightened, the positioning screw comes into contact with the rubber strip. Compared with the method where the end of the positioning screw contacts the crossbeam, the resistance to the movement of the positioning screw increases, which further improves the stability of the blade position restriction.

[0014] 3. Control the extension of the cylinder. The cylinder drives the second slide at the end of the crossbeam to move along the second guide rail, so as to adjust the relative position between the blade and the film as needed. Adjust the position of the first slide along the first guide rail so that the distance between two adjacent first slides meets the requirements. Then, use the positioning screw to limit the relative position between the clamping block and the crossbeam, so as to meet the needs of cutting films of different widths. Attached Figure Description

[0015] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0016] Figure 1 This is a schematic diagram of the film cutting device of a film stretching machine according to the present invention;

[0017] Figure 2 This is another perspective view of the film cutting device of the film stretching machine according to the present invention;

[0018] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0019] Figure 4 This is an assembly diagram of the first slide, positioning screw, lifting rod, spring and clamping block in the film cutting device of a film stretching machine according to the present invention;

[0020] Figure 5 This is a perspective view of the clamping block in the film cutting device of a film stretching machine according to the present invention;

[0021] In the diagram: 1-Crossbeam, 2-Side plate, 3-Bottom beam, 4-Reversing roller, 5-Film, 6-Support roller, 7-Guide roller, 8-Cylinder, 9-First guide rail, 10-Positioning screw, 11-Clamping screw, 12-Clamping block, 13-First slide block, 14-Lifting rod, 15-Adjusting rod, 16-Rubber strip, 17-Support plate, 18-Second guide rail, 19-Support, 20-Second slide block, 21-Blade, 22-Pointed tip, 23-Limiting ring, 24-Spring, 25-Vertical hole, 26-Groove. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] Please see Figures 1-4 This utility model provides a technical solution: a film cutting device for a film stretching machine, including a crossbeam 1, two side plates 2 with cylinders 8 rotatably mounted on opposite sides, the movable end of the cylinders 8 being rotatably connected to the end of the crossbeam 1, a second slide block 20 being installed at the lower part of both ends of the crossbeam 1, a second guide rail 18 being inserted into the second slide block 20, and a support 19 being installed at the bottom of the second guide rail 18 by screws, the support 19 being connected and fixed to the side plate 2, controlling the extension of the cylinder 8, the cylinder 8 driving the second slide block 20 at the end of the crossbeam 1 to move along the second guide rail 18, so as to adjust the relative position between the blade 21 and the film 5 as needed, the two ends of the crossbeam 1 are mounted with side plates 2 by adjusting parts, and a bottom beam 3 is provided directly below the crossbeam 1, so that the two ends of the bottom beam 3 are respectively connected and fixed to the two side plates 2, improving the stability of the structure.

[0024] See Figure 1 , Figures 3-5 A first guide rail 9 is installed on the upper surface of the crossbeam 1, arranged along the length of the crossbeam 1. Multiple first slide blocks 13 are fitted on the first guide rail 9. A clamping block 12 is installed on the upper surface of the first slide block 13. The lower surface of the clamping block 12 is recessed to form a groove 26. An adjusting rod 15 is inserted into the groove 26. An inclined blade 21 for cutting film is installed in a notch at one end of the adjusting rod 15. A clamping screw 11 for limiting the relative position between the adjusting rod 15 and the clamping block 12 is threaded on the upper surface of the clamping block 12. By turning the clamping screw 11, the relative position between the adjusting rod 15 and the clamping block 12 can be adjusted, which facilitates the adjustment of the relative position between the blade 21 and the crossbeam 1. A positioning screw 10 for limiting the relative position between the clamping block 12 and the crossbeam 1 is threaded on one side of the upper surface of the clamping block 12. The position of the first slide block 13 is adjusted along the first guide rail 9 so that the distance between two adjacent first slide blocks 13 meets the requirements. Then, the positioning screw 10 is used to limit the relative position between the clamping block 12 and the crossbeam 1, which can meet the needs of cutting films of different widths.

[0025] See Figures 1-5 A vertical hole 25 is provided on the side of the upper surface of the clamping block 12 away from the positioning screw 10. A lifting rod 14 is inserted into the vertical hole 25. A handle is installed on the upper end of the lifting rod 14, and the handle is arranged perpendicular to the lifting rod 14. A pointed head 22 is connected and fixed to the lower end of the lifting rod 14. A limiting ring 23 is provided on the upper side of the pointed head 22. The limiting ring 23 is sleeved on the lifting rod 14 and connected and fixed to the lifting rod 14. A spring 24 is provided between the limiting ring 23 and the vertical hole 25. The spring 24 is sleeved on the lifting rod 14. A detachable rubber strip 16 is installed on the side of the upper surface of the crossbeam 1 with a rectangular cross-section away from the first guide rail 9. A support plate 17 is snapped onto the side of the crossbeam 1 away from the first guide rail 9. The support plate 17 has an L-shaped structure. The horizontal part of the support plate 17 is in contact with the top of the crossbeam 1. The rubber strip 16 is glued to the upper surface of the horizontal part of the support plate 17. The vertical part of the support plate 17 is connected to the crossbeam 1 by multiple screws. The support plate 17 serves to connect the crossbeam 1 and the rubber strip 16. When the positioning screw 10 is tightened, the positioning screw 10 contacts the rubber strip 16. Compared with the way the end of the positioning screw 10 contacts the crossbeam 1, the resistance to the movement of the positioning screw 10 increases, which further improves the stability of the position restriction of the blade 21. The tip 22 at the lower end of the lifting rod 14 can penetrate into the rubber strip 16 to form a mechanical positioning point. The spring 24 pushes the limiting ring 23 to keep the tip 22 in the inserted state. When the positioning screw 10 is tightened, it counteracts the displacement of the first slide block 13 and prevents the blade 21 spacing from being incorrect during the tightening of the positioning screw 10. Tightening the positioning screw 10 restricts the position of the blade 21 and prevents multiple blades 21 from having different spacings, thus ensuring the slitting quality of the film 5.

[0026] SeeFigure 1 and Figure 2 A support roller 6 for supporting the film 5 is provided on one side of the crossbeam 1. The two ends of the support roller 6 are rotatably connected to the two side plates 2 respectively. A guide roller 7 for guiding the conveying path of the film 5 is provided diagonally below the support roller 6. The two ends of the guide roller 7 are rotatably connected to the two side plates 2 respectively. A reversing roller 4 for changing the conveying direction of the film 5 is provided diagonally above the support roller 6. The two ends of the reversing roller 4 are rotatably connected to the two side plates 2 respectively. The guide roller 7, the support roller 6 and the reversing roller 4 together restrict the conveying path of the film 5.

[0027] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A film cutting device for a film stretching machine, comprising a crossbeam (1), characterized in that: Both ends of the crossbeam (1) are fitted with side plates (2) via adjusting components. A first guide rail (9) arranged along the length of the crossbeam (1) is mounted on the upper surface of the crossbeam (1). A plurality of first slides (13) are fitted on the first guide rail (9). A clamping block (12) is mounted on the upper surface of the first slide (13). A blade (21) for cutting film is installed between the clamping block (12) and the first slide (13). A positioning screw (10) for limiting the relative position of the clamping block (12) and the crossbeam (1) is threaded on one side of the upper surface of the clamping block (12). A vertical hole (25) is opened on the side of the upper surface of the clamping block (12) away from the positioning screw (10). A lifting rod (14) is inserted into the vertical hole (25). A pointed tip (22) is fixedly connected to the lower end of the lifting rod (14). A limiting ring (23) is provided on the upper side of the pointed tip (22). The limiting ring (23) is sleeved on the lifting rod (14) and fixedly connected to the lifting rod (14). A spring (24) is provided between the limiting ring (23) and the vertical hole (25). The spring (24) is sleeved on the lifting rod (14). A detachable rubber strip (16) is installed on the side of the upper surface of the crossbeam (1) away from the first guide rail (9). The pointed tip (22) is inserted into the rubber strip (16). The lower end of the positioning screw (10) is in contact with the rubber strip (16).

2. The film cutting device of a film stretching machine according to claim 1, characterized in that: The lower surface of the clamping block (12) is recessed to form a groove (26), and an adjusting rod (15) is inserted in the groove (26). An inclined blade (21) is installed in a notch at one end of the adjusting rod (15). The upper surface of the clamping block (12) is threaded with a clamping screw (11) for limiting the relative position of the adjusting rod (15) and the clamping block (12).

3. The film cutting device of a film stretching machine according to claim 1, characterized in that: The adjusting component includes a cylinder (8). The cylinder (8) is rotatably mounted on the opposite surfaces of the two side plates (2). The movable end of the cylinder (8) is rotatably connected to the end of the crossbeam (1). A second slide (20) is installed at the lower position of both ends of the crossbeam (1). A second guide rail (18) is inserted in the second slide (20). A support (19) is installed at the bottom of the second guide rail (18) by screws. The support (19) is connected and fixed to the side plate (2).

4. The film cutting device of a film stretching machine according to claim 1, characterized in that: The cross-section of the beam (1) is rectangular. A support plate (17) is attached to the side of the beam (1) away from the first guide rail (9). The support plate (17) has an L-shaped structure. The horizontal part of the support plate (17) is attached to the top of the beam (1). The rubber strip (16) is glued to the upper surface of the horizontal part of the support plate (17). The vertical part of the support plate (17) is connected to the beam (1) by multiple screws.

5. The film cutting device of a film stretching machine according to claim 1, characterized in that: A support roller (6) for supporting the film (5) is provided on one side of the crossbeam (1). The two ends of the support roller (6) are rotatably connected to the two side plates (2). A guide roller (7) for guiding the conveying path of the film (5) is provided diagonally below the support roller (6). The two ends of the guide roller (7) are rotatably connected to the two side plates (2). A reversing roller (4) for changing the conveying direction of the film (5) is provided diagonally above the support roller (6). The two ends of the reversing roller (4) are rotatably connected to the two side plates (2).

6. The film cutting device of a film stretching machine according to claim 1, characterized in that: A bottom beam (3) is provided directly below the crossbeam (1), and the two ends of the bottom beam (3) are respectively connected and fixed to the two side plates (2).

7. The film cutting device of a film stretching machine according to claim 1, characterized in that: A handle is installed at the upper end of the lifting rod (14), and the handle is arranged perpendicular to the lifting rod (14).

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