PE (polyethylene) thermal shrinkage film slitting mechanism convenient for adjusting slitting width

Abstract

The utility model provides a PE thermal shrinkage film slitting mechanism convenient to adjust the slitting width, and belongs to the technical field of packaging parts, the PE thermal shrinkage film slitting mechanism convenient to adjust the slitting width comprises a slitting mechanism body, the slitting mechanism body comprises a base, a supporting plate, a first positioning plate, a driving motor and a rotating shaft for transporting a thermal shrinkage film, the base is fixedly connected with the multiple sets of supporting plates, the supporting plates are vertically arranged on the two sides of the base, each set of supporting plates comprises two oppositely-arranged rectangular vertical plates, the rotating shaft is rotationally connected with one set of supporting plates, and an output shaft of the driving motor is fixedly connected with the rotating shaft. The first positioning plate is fixedly connected with the other group of supporting plates; a plurality of movable blades are arranged on the first positioning plate in a sliding mode, the movable blades are used for cutting the thermal shrinkage film, and the problems that a traditional cutting machine can only be adjusted in a short distance, and potential safety hazards exist can be solved.

Description

Technical Field

[0001] This utility model belongs to the field of packaging technology, and specifically relates to a PE heat shrink film slitting mechanism that facilitates adjustment of the slitting width. Background Technology

[0002] A heat shrink film slitting machine is a specialized device used to cut large rolls of heat shrink film material into smaller rolls or sheets according to preset widths and lengths. Heat shrink film is a type of plastic film that shrinks when heated and is widely used in product packaging, label making, and various industrial applications. With the development of the global economy, the variety and output of consumer goods are constantly increasing, and the demand for packaging is also rising accordingly. Heat shrink film, with its excellent transparency, moisture resistance, dust resistance, and tight fit to products, has become a very popular packaging material. Slitting machines can efficiently and accurately process heat shrink film into various specifications to meet the packaging needs of different products and ensure the smooth flow of goods.

[0003] Chinese patent application number CN202321068748.6 (publication number: CN219669725U) discloses a PE heat shrink film slitting mechanism that facilitates adjustment of the slitting width, including a winding module and a slitting module. The winding module includes a mounting base plate, a plurality of rectangular plates connected to the top of the mounting base plate, a first rotating shaft mounted between two rectangular plates, a second rotating shaft movably connected between the two rectangular plates, and a motor connected to the front end of the second rotating shaft. The slitting module includes two support plates connected to the top of the mounting base plate.

[0004] The solutions provided in the aforementioned patents have the following problems: 1. Operators need to manually move the blade directly in the cutting area, which poses a safety hazard. 2. When the equipment is too large, operators may not be able to reach the blade located in the center of the cutting mechanism, making adjustments inconvenient. Utility Model Content

[0005] In view of this, the present invention provides a PE heat shrink film slitting mechanism that facilitates adjustment of the slitting width, which can solve the problem that traditional slitting machines can only be adjusted at a short distance, posing safety hazards.

[0006] This utility model is implemented as follows:

[0007] This utility model provides a PE heat shrink film slitting mechanism that facilitates adjustment of the slitting width. It includes a slitting mechanism body, which includes a base, a support plate, a first positioning plate, a drive motor, and a rotating shaft for transporting the heat shrink film. The base is fixedly connected to multiple sets of the support plates. The support plates are vertically arranged on both sides of the base. Each set of support plates includes two rectangular upright plates placed opposite each other. The rotating shaft is rotatably connected to one set of the support plates. The output shaft of the drive motor is fixedly connected to the rotating shaft. The first positioning plate is fixedly connected to another set of the support plates.

[0008] The first positioning plate has multiple movable blades slidably mounted thereon, which are used to cut the heat shrink film. Each movable blade has a first groove at its top. A second positioning plate is fixedly connected to the support plates furthest from the movable blades. A positioning block is slidably connected to the second positioning plate. The top of the positioning block has a second groove. A first adjusting rod and a second adjusting rod are also provided. The first adjusting rod is adapted to the first groove and the second groove. The first adjusting rod and the second adjusting rod are used to adjust the cutting width of the movable blades. The straight line connecting the midpoint of the movable blade and the midpoint of the positioning block is perpendicular to the first positioning plate. The second positioning plate has a scale and is a convex-shaped structure.

[0009] Based on the above technical solution, the PE heat shrink film slitting mechanism of this utility model, which facilitates adjustment of the slitting width, can be further improved as follows:

[0010] The movable blade includes a movable frame, a blade body, and a fastening bolt. The movable frame is sleeved on the outside of the first positioning plate and slidably connected to the first positioning plate. The blade body is fixedly connected to the movable frame and is located on the central axis directly below the movable frame. The fastening bolt passes through the side wall of the movable frame and abuts against the first positioning plate.

[0011] Furthermore, the fastening bolt includes a head and a shank, the shank being threaded and the head being an internal hexagonal head structure. The head of the fastening bolt faces the positioning block, and the fastening bolt is located below the first groove.

[0012] Furthermore, the first groove penetrates the upper surface of the movable blade, and the second groove penetrates the upper surface of the positioning block.

[0013] Furthermore, the distance between the edge of the moving frame furthest from the positioning block and the edge of the positioning block furthest from the moving frame is less than the length of the first adjusting rod.

[0014] Furthermore, the shortest straight-line distance between the moving frame and the positioning block is longer than the length of the second adjusting rod, and an Allen wrench is installed on the head of the second adjusting rod.

[0015] Furthermore, the second adjusting rod has an L-shaped structure.

[0016] Furthermore, a positioning plate is fixedly connected to one end of the first adjusting rod. The positioning plate has an L-shaped structure, with its right edge coinciding with the central axis of the first adjusting rod, and its short side abutting against the lower part of the convex structure of the second positioning plate.

[0017] Furthermore, both the first and second grooves are square structures.

[0018] Furthermore, both the first and second grooves are semi-circular structures.

[0019] Compared with existing technologies, the beneficial effects of the PE heat shrink film slitting mechanism provided by this utility model, which facilitates adjustment of the slitting width, are as follows: Its core advantage lies in overcoming the limitation of traditional heat shrink film slitting devices requiring close-range adjustment, thus achieving long-range adjustment of the slitting width. The benefits of this can be elaborated in the following aspects:

[0020] 1. Remote adjustment isolates operators from hazardous areas, greatly improving operational safety. Traditional close-range adjustment requires operators to be close to the cutting mechanism, posing a potential risk of burns and cuts.

[0021] 2. Reduce the time operators spend near the cutting area, improve the working environment, and enhance operational safety.

[0022] 3. Some production environments are small and confined, making it difficult to get close to the cutting area for adjustments. Adjustments made from a distance are better suited to these complex environments.

[0023] 4. This design allows for quick adjustment of the slitting width to meet different production needs, adapting to various specifications of heat shrink film slitting tasks.

[0024] 5. It can overcome the problem that the cutting mechanism body is too large and the operator cannot reach the middle blade, simplifying the operation process and reducing labor intensity. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 A top view of a PE heat shrink film slitting mechanism that facilitates adjustment of the slitting width;

[0027] Figure 2 A side view of the positioning block of a PE heat shrink film slitting mechanism that facilitates adjustment of the slitting width;

[0028] Figure 3 A cross-sectional view of the positioning block of a PE heat shrink film slitting mechanism that facilitates adjustment of the slitting width;

[0029] Figure 4 A side view of the moving blade of a PE heat shrink film slitting mechanism that facilitates adjustment of the slitting width;

[0030] Figure 5 A side view of the second adjusting rod of a PE heat shrink film slitting mechanism that facilitates adjustment of the slitting width;

[0031] The attached diagram lists the components represented by each number as follows:

[0032] 10. Base; 11. Support plate; 12. First positioning plate; 20. Moving blade; 21. Moving frame; 22. Blade body; 23. Fastening bolt; 30. Second positioning plate; 31. Positioning block; 40. First groove; 50. Second groove; 60. First adjusting rod; 61. Positioning plate; 70. Second adjusting rod. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0034] like Figure 1-3 The image shows an embodiment of a PE heat shrink film slitting mechanism that facilitates adjustment of the slitting width provided by this utility model. In this embodiment, it includes a slitting mechanism body, which includes a base 10, a support plate 11, a first positioning plate 12, a drive motor, and a rotating shaft for transporting the heat shrink film. The base 10 is fixedly connected to multiple sets of support plates 11. The support plates 11 are vertically arranged on both sides of the base 10. Each set of support plates 11 includes two rectangular upright plates placed opposite each other. The rotating shaft is rotatably connected to a set of support plates 11. The output shaft of the drive motor is fixedly connected to the rotating shaft. The first positioning plate 12 is fixedly connected to another set of support plates 11.

[0035] The first positioning plate 12 has multiple movable blades 20 slidably mounted on it. The movable blades 20 are used to cut the heat shrink film. The top of the movable blade 20 is provided with a first groove 40. A second positioning plate 30 is fixedly connected to the set of support plates 11 furthest from the movable blade 20. A positioning block 31 is slidably connected to the second positioning plate 30. The top of the positioning block 31 is provided with a second groove 50. A first adjusting rod 60 and a second adjusting rod 70 are also provided. The first adjusting rod 60 is adapted to the first groove 40 and the second groove 50. The first adjusting rod 60 and the second adjusting rod 70 are used to adjust the cutting width of the movable blades 20. The straight line connecting the midpoint of the movable blade 20 and the midpoint of the positioning block 31 is perpendicular to the first positioning plate 12. The second positioning plate 30 is provided with a scale and has a convex structure.

[0036] When the first adjusting rod 60 is adapted to the first groove 40 and the second groove 50, it can be ensured that when the two ends of the first adjusting rod 60 are respectively placed in the first groove 40 and the second groove 50, the positioning block 31 and the moving blade 20 are located on the same straight line, and this straight line is perpendicular to the first positioning plate 12.

[0037] The slitting mechanism body can refer to the PE heat shrink film slitting mechanism disclosed in application number CN202321068748.6, which is easy to adjust the slitting width.

[0038] In the above technical solution, the movable blade 20 includes a movable frame 21, a blade body 22, and a fastening bolt 23. The movable frame 21 is sleeved on the outside of the first positioning plate 12 and slidably connected to the first positioning plate 12. The blade body 22 is fixedly connected to the movable frame 21 and is located on the central axis directly below the movable frame 21. The fastening bolt 23 passes through the side wall of the movable frame 21 and abuts against the first positioning plate 12.

[0039] Furthermore, in the above technical solution, the fastening bolt 23 includes a head and a shank, the shank is threaded, the head is an internal hexagon head structure, the head of the fastening bolt 23 faces the positioning block 31, and the fastening bolt 23 is located below the first groove 40.

[0040] Furthermore, in the above technical solution, the first groove 40 penetrates the upper surface of the movable blade 20, and the second groove 50 penetrates the upper surface of the positioning block 31.

[0041] The central axis of the first groove 40 coincides with the central axis of the moving blade 20;

[0042] The central axis of the second groove 50 coincides with the central axis of the positioning block 31.

[0043] Furthermore, in the above technical solution, the distance between the edge of the moving frame 21 furthest from the positioning block 31 and the edge of the positioning block 31 furthest from the moving frame 21 is less than the length of the first adjusting rod 60.

[0044] Furthermore, in the above technical solution, the shortest straight distance between the moving frame 21 and the positioning block 31 is longer than the length of the second adjusting rod 70, and an internal hex wrench is installed on the head of the second adjusting rod 70.

[0045] Furthermore, in the above technical solution, the second adjusting rod 70 has an L-shaped structure.

[0046] Furthermore, in the above technical solution, a positioning plate 61 is fixedly connected to one end of the first adjusting rod 60. The positioning plate 61 has an L-shaped structure, the right edge of the positioning plate 61 coincides with the central axis of the first adjusting rod 60, and the short side of the positioning plate 61 abuts against the lower part of the convex structure of the second positioning plate 30.

[0047] Furthermore, in the above technical solution, both the first groove 40 and the second groove 50 are square structures.

[0048] Furthermore, in the above technical solution, both the first groove 40 and the second groove 50 are semi-circular structures.

[0049] Specifically, the principle of this utility model is as follows: When adjusting the cutting width, making adjustments near the blade usually poses a safety hazard, and due to the overall size limitations of the large cutting mechanism, the operator cannot move the blade 20 in the center for adjustment. Therefore, this solution was designed.

[0050] In use, first stop the machine. First, place the end of the first adjusting rod 60 furthest from the positioning plate 61 into the first groove 40, and the end of the first adjusting rod 60 closest to the positioning plate 61 into the second groove 50. When the first adjusting rod 60 is fully inserted, the moving blade 20 and the positioning block 31 are aligned upwards in a straight line. Loosen the fastening bolt 23 of the moving blade 20 to be adjusted using the second adjusting rod 70 so that the moving frame 21 can slide on the first positioning plate 12. Slide the first adjusting rod 60 parallel to move the moving frames 21 and the positioning blocks 31 at both ends. Observe the position of the positioning plate 61 on the scale. When it is adjusted to the appropriate position, press down on the first adjusting rod 60 with your hand to apply downward pressure to prevent the moving blade 20 and the positioning block 31 from changing position. Use your other hand to hold the second adjusting rod 70 and tighten the fastening bolt 23. Repeat the above method to move each moving blade 20.

[0051] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A PE heat shrink film slitting mechanism with adjustable slitting width, comprising a slitting mechanism body, the slitting mechanism body comprising a base (10), a support plate (11), a first positioning plate (12), a drive motor, and a rotating shaft for transporting heat shrink film, wherein the base (10) is fixedly connected to multiple sets of the support plates (11), the support plates (11) are vertically arranged on both sides of the base (10), each set of support plates (11) comprises two rectangular upright plates placed opposite each other, the rotating shaft is rotatably connected to a set of the support plates (11), the output shaft of the drive motor is fixedly connected to the rotating shaft, and the first positioning plate (12) is fixedly connected to another set of the support plates (11); characterized in that Multiple movable blades (20) are slidably disposed on the first positioning plate (12). The movable blades (20) are used to cut the heat shrink film. A first groove (40) is provided on the top of the movable blades (20). A second positioning plate (30) is fixedly connected between the support plates (11) furthest from the movable blades (20). A positioning block (31) is slidably connected on the second positioning plate (30). A second groove (50) is provided on the top of the positioning block (31). A first adjusting rod is also provided. 60) and the second adjusting rod (70), the first adjusting rod (60) is adapted to the first groove (40) and the second groove (50), the first adjusting rod (60) and the second adjusting rod (70) are used to adjust the cutting width of the moving blade (20), the straight line connecting the shortest distance between the midpoint of the moving blade (20) and the midpoint of the positioning block (31) is perpendicular to the first positioning plate (12), the second positioning plate (30) is provided with a scale, and the second positioning plate (30) is a convex structure.

2. The PE heat shrink film slitting mechanism for easy adjustment of slitting width according to claim 1, characterized in that, The movable blade (20) includes a movable frame (21), a blade body (22), and a fastening bolt (23). The movable frame (21) is sleeved on the outside of the first positioning plate (12) and slidably connected to the first positioning plate (12). The blade body (22) is fixedly connected to the movable frame (21). The blade body (22) is located on the central axis directly below the movable frame (21). The fastening bolt (23) passes through the side wall of the movable frame (21) and abuts against the first positioning plate (12).

3. The PE heat shrink film slitting mechanism for easy adjustment of slitting width according to claim 2, characterized in that, The fastening bolt (23) includes a head and a shank. The shank is threaded and the head is an internal hexagonal head structure. The head of the fastening bolt (23) faces the positioning block (31) and is located below the first groove (40).

4. The PE heat-shrinkable film slitting mechanism with adjustable slitting width according to claim 3, characterized in that, The first groove (40) penetrates the upper surface of the movable blade (20), and the second groove (50) penetrates the upper surface of the positioning block (31).

5. The PE heat-shrinkable film slitting mechanism with adjustable slitting width according to claim 4, characterized in that, The distance between the edge of the moving frame (21) furthest from the positioning block (31) and the edge of the positioning block (31) furthest from the moving frame (21) is less than the length of the first adjusting rod (60).

6. The PE heat-shrinkable film slitting mechanism with adjustable slitting width according to claim 5, characterized in that, The shortest straight distance between the moving frame (21) and the positioning block (31) is longer than the length of the second adjusting rod (70), and an internal hex wrench is installed on the head of the second adjusting rod (70).

7. The PE heat-shrinkable film slitting mechanism with adjustable slitting width according to claim 6, characterized in that, The second adjusting rod (70) has an L-shaped structure.

8. A PE heat shrink film slitting mechanism for easy adjustment of slitting width according to claim 7, characterized in that, A positioning plate (61) is fixedly connected to one end of the first adjusting rod (60). The positioning plate (61) has an L-shaped structure. The right edge of the positioning plate (61) coincides with the central axis of the first adjusting rod (60). The short side of the positioning plate (61) abuts against the lower part of the convex structure of the second positioning plate (30).

9. A PE heat shrink film slitting mechanism for easy adjustment of slitting width according to claim 8, characterized in that, Both the first groove (40) and the second groove (50) are square structures.

10. The PE heat-shrinkable film slitting mechanism with easy adjustment of slitting width according to claim 9, characterized in that, Both the first groove (40) and the second groove (50) are semi-circular structures.

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