PVC (polyvinyl chloride) film slitting machine

Abstract

The utility model discloses a PVC (polyvinyl chloride) film slitting machine, and relates to the technical field of PVC film processing. Comprising a mounting frame, placing frames are fixedly mounted at the positions, close to the center, of the left side and the right side of the top of the mounting frame correspondingly, pressure sensors are fixedly mounted at the positions, close to the adjacent sides, of the inner top walls of the two placing frames correspondingly, and second sliding rod sets are fixedly mounted in the two placing frames correspondingly; the outer surfaces of the two second sliding rod sets are movably sleeved with second sliding blocks, the adjacent sides of the two second sliding blocks are provided with measuring rollers, the positions, close to the rear end, of the centers of the left side and the right side of the top of the mounting frame are fixedly provided with mounting boxes, and the tops of the two mounting boxes are fixedly provided with electric telescopic rods. The output ends of the two electric telescopic rods are fixedly connected with first sliding blocks correspondingly, mounting shafts are fixedly mounted on the adjacent sides of the two first sliding blocks, the outer surfaces of the mounting shafts are movably sleeved with adjusting rolling rollers, and second sliding rod sets are arranged in the two mounting boxes correspondingly.

Description

Technical Field

[0001] The utility model relates to the technical field of PVC film processing, in particular to a PVC film slitting machine. Background Art

[0002] The PVC film slitting machine can cut PVC film into desired round rolls by adjusting the cutter distance mechanism. This equipment is not only suitable for PVC film, but can also be used to slit thin materials such as non-woven fabrics, leather, plastics, kraft paper, films, PE, PU, ​​PT, EVA, and environmentally friendly materials. PVC film slitting machines play an important role in various industries, including packaging, printing, and building materials.

[0003] Chinese utility model patent CN221093122U discloses a CPP film slitting machine, which includes a base and a support plate, wherein there are two support plates symmetrically arranged on both sides of the base; an unwinding mechanism, a slitting and cutting mechanism, and a winding mechanism are respectively arranged between the two support plates; a cleaning cover is provided between the slitting and cutting mechanism and the winding mechanism, and the cleaning cover is provided with a discharge port corresponding to the discharge position of the slitting and cutting mechanism, and brushes for cleaning debris on the upper and lower sides of the CPP film are provided at the upper and lower ends of the discharge port. Through this arrangement, the cut material is cleaned to a certain extent before winding, preventing debris from being wound up along with the cut material, thereby avoiding contamination and damage to the material.

[0004] However, the existing film slitting machine has uneven tightness of each seal during winding, resulting in uneven winding edges, which affects product quality, product appearance and production efficiency. Therefore, a PVC film slitting machine is needed. Utility Model Content

[0005] The utility model provides a PVC film slitting machine to solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a PVC film slitting machine, comprising a mounting frame, a winding mechanism is fixedly installed on the top front end of the mounting frame near the left and right sides, a fixed seat is fixedly installed on the top front end of the left and right sides of the mounting frame near the center, a driving motor is fixedly installed on the left side of one of the two fixing seats near the top, the output end of the driving motor is fixedly connected to a rotating rod, a plurality of equally spaced variable pitch grooves are distributed in parallel on the outer surface of the rotating rod, an auxiliary sliding rod is fixedly installed on the upper surface of the adjacent side of the two fixing seats near the center, an active sliding rod is fixedly installed on the outer surface of the adjacent side of the two fixing seats near the center, a plurality of cutting devices are distributed in parallel on the outer surface of the active sliding rod, and a placing device is fixedly installed on the left and right sides of the top of the mounting frame near the center. The lifting mechanism comprises a lifting mechanism, a lifting mechanism comprises a lifting mechanism, a lifting mechanism comprises a lifting mechanism, a lifting mechanism comprises a lifting mechanism, a lifting mechanism comprises a lifting mechanism, a lifting mechanism comprises a lifting mechanism, a lifting mechanism comprises a lifting mechanism, a lifting mechanism comprises a lifting mechanism, a lifting mechanism comprises a lifting mechanism, a lifting mechanism comprises a lifting mechanism, a lifting mechanism comprises a lifting mechanism, a lifting mechanism

[0007] Furthermore, multiple cutting devices include a handle and a cutting knife, a through groove is provided at the center of one side of multiple handles, a sliding groove is provided on the upper surface of one side of multiple handles near the top, the outer surface of the active slide rod is movably connected to the inner part of the through groove on multiple handles, the outer surface of the auxiliary slide rod is movably connected to the inner part of the sliding groove on multiple handles, the cutting knife is fixedly installed on the bottom of multiple handles, and multiple handles are movably connected to multiple equally spaced variable pitch grooves.

[0008] Furthermore, the output ends of the two electric telescopic rods respectively pass through the tops of the adjacent installation boxes and extend into the interiors of the two installation boxes and are respectively fixedly connected to the tops of the two first sliding blocks.

[0009] Furthermore, the two first slide rod groups are composed of two slide rods, and the tops of the two first slide rods are symmetrically provided with slide grooves near the front and rear ends. The slide grooves are movably connected to the outer surfaces of the slide rods, and the top and bottom of the slide rods are fixedly connected to the inner top wall and inner bottom wall of the installation box respectively.

[0010] Furthermore, the two second slide bar groups are each composed of two slide bars, and the tops of the two second sliders are symmetrically provided with slide grooves near the front and rear ends. The two slide bar groups composed of slide bars are respectively movably connected to the inner parts of the slide grooves on the adjacent second sliders, and the tops and bottoms of the two slide bar groups composed of slide bars are respectively fixedly connected to the inner top wall and inner bottom wall of the adjacent placement frame.

[0011] Furthermore, the left and right sides of the measuring roller are respectively connected to the adjacent sides of the two second sliding blocks through ball bearings.

[0012] Furthermore, the left side of the rotating rod passes through the right side of one of the two fixed seats near the top and is fixedly connected to the output end of the driving motor, the connection between the rotating rod and one of the two fixed seats is connected through a ball bearing, the left side of the other of the two fixed seats near the top is connected to the right side of the rotating rod through a bearing seat, and the left side of the other of the two fixed seats is fixedly connected to the right side of the active sliding rod and the auxiliary sliding rod.

[0013] Furthermore, the two pressure sensors are respectively located above the two second sliders, and the outer surfaces of the slide rods on the two second slide rod groups are movably sleeved with springs, the tops of the springs are respectively fixedly connected to the inner top walls of the two placement frames, and the bottoms of the springs are respectively fixedly connected to the tops of adjacent second sliders.

[0014] Compared with the prior art, the present invention provides a PVC film slitting machine with the following beneficial effects:

[0015] 1. The PVC film slitting machine is equipped with a measuring roller, a second slider, a second slide bar group, a spring and a pressure sensor. Through the precise measurement of the measuring roller and the stable adjustment of the second slider, the dimensional accuracy of the PVC film before cutting can be ensured, thereby improving the cutting accuracy and product quality. The real-time monitoring function of the pressure sensor can promptly detect the problem of insufficient tension of the PVC film and make rapid adjustments through the electrical drive mechanism to ensure the continuity and stability of the cutting process. Through precise measurement, stable adjustment and real-time monitoring, the PVC film slitting machine can be ensured to operate in the best condition, thereby improving production efficiency and product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a diagram of the internal structure of the installation box of the utility model;

[0018] Figure 3 This is a diagram of the internal structure of the placement frame of the utility model;

[0019] Figure 4 This is a diagram showing the connection between the drive motor and the rotating rod of the present utility model.

[0020] In the figure: 1. Mounting frame; 2. Winding mechanism; 3. Fixing seat; 4. Mounting box; 5. Electric telescopic rod; 6. Auxiliary roller device; 7. Measuring roller; 8. Placement frame; 9. First slide bar group; 10. Mounting shaft; 11. Adjustment roller; 12. First slide bar; 13. Second slide bar group; 14. Second slide bar; 15. Spring; 16. Pressure sensor; 17. Drive motor; 18. Active slide bar; 19. Cutting device; 20. Auxiliary slide bar; 21. Rotating rod; 22. Equally spaced variable pitch slots. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-4The utility model discloses a PVC film slitting machine, including a mounting frame 1, a winding mechanism 2 is fixedly installed on the top front end of the mounting frame 1 near the left and right sides, a fixed seat 3 is fixedly installed on the top front end of the left and right sides of the mounting frame 1 near the center, a driving motor 17 is fixedly installed on the left side of one of the two fixing seats 3 near the top, the output end of the driving motor 17 is fixedly connected to a rotating rod 21, a plurality of equally spaced variable pitch grooves 22 are distributed in parallel on the outer surface of the rotating rod 21, an auxiliary sliding rod 20 is fixedly installed on the upper surface of the adjacent side of the two fixing seats 3 near the center, an active sliding rod 18 is fixedly installed on the lower surface of the adjacent side of the two fixing seats 3 near the center, a plurality of cutting devices 19 are distributed in parallel on the outer surface of the active sliding rod 18, a placement frame 8 is fixedly installed on the left and right sides of the top near the center, and the two placement frames A pressure sensor 16 is fixedly installed on the inner top wall of 8 near the adjacent side, a second slide group 13 is fixedly installed inside the two placement frames 8, and the outer surfaces of the two second slide groups 13 are movably connected with the second slider 14, and a measuring roller 7 is provided on the adjacent side of the two second sliders 14. The mounting boxes 4 are fixedly installed on the left and right centers of the top of the mounting frame 1 near the rear end, and the first slide group 9 is provided inside the two mounting boxes 4. The electric telescopic rod 5 is fixedly installed on the top of the two mounting boxes 4, and the output ends of the two electric telescopic rods 5 are fixedly connected to the first slider 12, and the adjacent side of the two first sliders 12 is fixedly installed with a mounting shaft 10, and the outer surface of the mounting shaft 10 is movably connected with an adjusting roller 11, and a second slide group 13 is provided in the two mounting boxes 4. Auxiliary roller devices 6 are fixedly installed on the left and right sides of the top of the mounting frame 1 near the top.

[0023] Specifically, multiple cutting devices 19 include a handle and a cutting knife. A through groove is provided at the center of one side of the multiple handles, and a sliding groove is provided near the top of the upper surface of one side of the multiple handles. The outer surface of the active slide rod 18 is movably connected to the inner part of the through groove on the multiple handles, and the outer surface of the auxiliary slide rod 20 is movably connected to the inner part of the sliding groove on the multiple handles. The cutting knife is fixedly installed at the bottom of the multiple handles, and the multiple handles are movably connected to multiple equally spaced variable pitch grooves 22 respectively.

[0024] Specifically, the output ends of the two electric telescopic rods 5 respectively pass through the tops of the adjacent installation boxes 4 and extend into the interiors of the two installation boxes 4 and are fixedly connected to the tops of the two first sliding blocks 12 .

[0025] Specifically, the two first slide rod groups 9 are composed of two slide rods, and the tops of the two first sliders 12 are symmetrically provided with slide grooves near the front and rear ends. The slide grooves are movably connected to the outer surfaces of the slide rods, and the top and bottom of the slide rods are fixedly connected to the inner top wall and inner bottom wall of the installation box 4 respectively.

[0026] Specifically, the two second slide bar groups 13 are composed of two slide bars, and the tops of the two second sliders 14 are symmetrically provided with slide grooves near the front and rear ends. The two slide bar groups composed of slide bars are respectively movably connected to the internal slide grooves on the adjacent second sliders 14, and the tops and bottoms of the two slide bar groups composed of slide bars are respectively fixedly connected to the inner top wall and inner bottom wall of the adjacent placement frame 8.

[0027] Specifically, the left and right sides of the measuring roller 7 are respectively connected to the adjacent sides of the two second sliding blocks 14 through ball bearings.

[0028] Specifically, the left side of the rotating rod 21 passes through the right side of one of the two fixed seats 3 near the top and is fixedly connected to the output end of the drive motor 17. The connection between the rotating rod 21 and one of the two fixed seats 3 is connected through a ball bearing. The left side of the other of the two fixed seats 3 near the top is connected to the right side of the rotating rod 21 through a bearing seat. The left side of the other of the two fixed seats 3 is fixedly connected to the active slide bar 18 and the right side of the auxiliary slide bar 20.

[0029] Specifically, the two pressure sensors 16 are respectively located above the two second sliders 14, and the outer surfaces of the slide bars on the two second slide bar groups 13 are movably sleeved with springs 15. The tops of the springs 15 are respectively fixedly connected to the inner top walls of the two placement frames 8, and the bottoms of the springs 15 are respectively fixedly connected to the tops of the adjacent second sliders 14.

[0030] Before use, starting the drive motor 17 as needed is the initial step of the entire PVC film slitting machine workflow and is also the key to ensuring the smooth progress of subsequent operations; once the drive motor 17 is started, it uses its stable power output to efficiently transfer energy to the rotating rod 21 through a precise mechanical transmission device, causing it to start rotating at a constant speed; the setting of the rotating rod 21 is not just a simple transmission component, but the multiple equally spaced pitch-varying grooves 22 specially processed thereon are the essence of the entire cutting process; these pitch-varying grooves rotate precisely with the rotation of the rotating rod 21, accurately controlling the movement rhythm of the knife handle in the cutting device 19; when the equally spaced pitch-varying grooves 22 on the rotating rod 21 rotate to contact the knife handle in the cutting device 19 , move the knife handle so that it moves along the preset trajectory of the active slide bar 18 and the auxiliary slide bar 20 at an equal distance and uniform speed; this precise transmission method ensures that the cutting knife in the cutting device 19 can strictly separate the PVC film according to the preset equal spacing requirements, laying a solid foundation for the subsequent PVC film stripping work, and also greatly improving the cutting efficiency and cutting accuracy; in the preparation work before cutting, one end of the PVC film to be stripped is cleverly passed under the auxiliary roller on the auxiliary roller device 6; such a setting not only ensures the stability of the PVC film during transmission, but also avoids it from unnecessary friction and damage, thereby ensuring the quality and cutting effect of the PVC film; then , the PVC film passes through the top of the adjusting roller 11. The adjusting roller 11, with its moderate pressure and stable rolling, further ensures the flatness and transmission stability of the PVC film. At the same time, the adjusting roller 11 can also flexibly adjust the tension of the PVC film according to actual needs, so that it remains in the best state, providing strong support for subsequent cutting work. Next, the PVC film passes around from under the measuring roller 7. This step is not only another accurate measurement of the width of the PVC film, but also a strong guarantee for its tension. When the PVC film passes around the measuring roller 7, it will lift the measuring roller 7 slightly. At this time, the spring 15 is compressed, and the top of the second slider 14 rises along the second slide bar group 13 until it contacts the pressure sensor 1 6; ensures that the PVC film always maintains sufficient tension during the entire cutting process, thereby ensuring the accuracy and stability of the cutting; if the tension is insufficient, the spring 15 will use its elastic force to push the second slider 14 down along the second slider group 13 and away from the pressure sensor 16; once the pressure sensor 16 no longer senses sufficient pressure, it will immediately activate the electric drive mechanism, driving the first slider 12 to move up along the first slider group 9 through the electric telescopic rod 5; this upward movement process will continue until the PVC film lifts the measuring roller 7 again and drives the second slider 14 to contact the pressure sensor 16 again; at this time, the output end of the electric telescopic rod 5 will stop retracting, ensuring that the PVC film always remains in the optimal cutting state;Finally, when the PVC film passes under the cutting blades, the cutting blades, which have been arranged at equal intervals, begin to play their decisive role; with lightning speed, they cut the PVC film into strips of uniform width and adjustable length. These strips not only meet the diverse needs of customers, but also demonstrate the excellent performance and superb cutting technology of the PVC film slitting machine.

[0031] In summary, the PVC film slitting machine, by setting the measuring roller 7, the second slider 14, the second slide bar group 13, the spring 15 and the pressure sensor 16, can ensure the dimensional accuracy of the PVC film before cutting through the precise measurement of the measuring roller 7 and the stable adjustment of the second slider 14, thereby improving the cutting accuracy and product quality; the real-time monitoring function of the pressure sensor 16 can timely detect the problem of insufficient tension of the PVC film, and make rapid adjustments through the electrical drive mechanism to ensure the continuity and stability of the cutting process; through precise measurement, stable adjustment and real-time monitoring, it can ensure that the PVC film slitting machine operates in the best state, thereby improving production efficiency and product quality.

[0032] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A PVC film slitting machine, comprising a mounting frame (1), characterized in that: A winding mechanism (2) is fixedly installed at the front end of the top of the mounting frame (1) near the left and right sides, and a fixed seat (3) is fixedly installed at the front end of the top of the mounting frame (1) near the center. A driving motor (17) is fixedly installed at the left side of one of the two fixing seats (3) near the top, and the output end of the driving motor (17) is fixedly connected to a rotating rod (21). The outer surface of the rotating rod (21) is provided with a plurality of equally spaced variable pitch grooves (22) arranged in parallel. An auxiliary sliding rod (20) is fixedly installed at the position near the center of the upper surface of the adjacent side of the two fixing seats (3). An active sliding rod (18) is fixedly installed at the position near the center of the lower surface of the adjacent side of the two fixing seats (3). A plurality of cutting devices (19) are arranged in parallel on the outer surface of the active sliding rod (18). A placement frame (8) is fixedly installed at the position near the center of the left and right sides of the top of the mounting frame (1). The inner top walls of the two placement frames (8) are fixed at the position near the adjacent side. A pressure sensor (16) is installed. A second slide bar group (13) is fixedly installed inside the two placement frames (8). The outer surfaces of the two second slide bar groups (13) are movably sleeved with a second slider (14). A measuring roller (7) is provided on the adjacent side of the two second sliders (14). A mounting box (4) is fixedly installed at the center of the left and right sides of the top of the mounting frame (1) near the rear end. A first slide bar group (9) is provided inside the two mounting boxes (4). An electric telescopic rod (5) is fixedly installed on the top of the two mounting boxes (4). The output ends of the two electric telescopic rods (5) are fixedly connected to the first slider (12). A mounting shaft (10) is fixedly installed on the adjacent side of the two first sliders (12). The outer surface of the mounting shaft (10) is movably sleeved with an adjusting roller (11). A second slide bar group (13) is provided in the two mounting boxes (4). Auxiliary roller devices (6) are fixedly installed on the left and right sides of the top of the mounting frame (1) near the top.

2. A PVC film slitting machine according to claim 1, characterized in that: The plurality of cutting devices (19) include a handle and a cutting knife, a through groove is provided at the center of one side of the plurality of handles, a sliding groove is provided near the top of the upper surface of one side of the plurality of handles, the outer surface of the active slide rod (18) is movably connected to the inner part of the through groove on the plurality of handles, the outer surface of the auxiliary slide rod (20) is movably connected to the inner part of the sliding groove on the plurality of handles, a cutting knife is fixedly installed at the bottom of the plurality of handles, and the plurality of handles are movably connected to a plurality of equally spaced variable pitch grooves (22).

3. A PVC film slitting machine according to claim 1, characterized in that: The output ends of the two electric telescopic rods (5) respectively penetrate the tops of the adjacent installation boxes (4) and respectively extend into the interiors of the two installation boxes (4) and are respectively fixedly connected to the tops of the two first sliding blocks (12).

4. A PVC film slitting machine according to claim 1, characterized in that: The two first slide rod groups (9) are each composed of two slide rods, and the tops of the two first sliders (12) are symmetrically provided with slide grooves near the front and rear ends, the slide grooves are movably connected to the outer surfaces of the slide rods, and the top and bottom of the slide rods are respectively fixedly connected to the inner top wall and inner bottom wall of the installation box (4).

5. The PVC film slitting machine according to claim 1, characterized in that: The two second slide bar groups (13) are each composed of two slide bars, and the tops of the two second sliders (14) are symmetrically provided with slide grooves near the front and rear ends. The two slide bar groups composed of slide bars are respectively movably connected to the inner sides of the slide grooves on the adjacent second sliders (14), and the tops and bottoms of the two slide bar groups composed of slide bars are respectively fixedly connected to the inner top wall and inner bottom wall of the adjacent placement frame (8).

6. A PVC film slitting machine according to claim 1, characterized in that: The left and right sides of the measuring roller (7) are respectively connected to adjacent sides of the two second sliding blocks (14) via ball bearings.

7. The PVC film slitting machine according to claim 1, characterized in that: The left side of the rotating rod (21) passes through the right side of one of the two fixed seats (3) near the top and is fixedly connected to the output end of the driving motor (17); the connection between the rotating rod (21) and one of the two fixed seats (3) is connected through a ball bearing; the left side of the other of the two fixed seats (3) near the top is connected to the right side of the rotating rod (21) through a bearing seat; the left side of the other of the two fixed seats (3) is fixedly connected to the active sliding rod (18) and the right side of the auxiliary sliding rod (20).

8. The PVC film slitting machine according to claim 1, characterized in that: The two pressure sensors (16) are respectively located above the two second sliders (14); the outer surfaces of the sliders on the two second slider groups (13) are movably sleeved with springs (15); the tops of the springs (15) are respectively fixedly connected to the inner top walls of the two placement frames (8); and the bottoms of the springs (15) are respectively fixedly connected to the tops of adjacent second sliders (14).

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