Plastic film splitting machine capable of conveniently adjusting splitting width

Abstract

The utility model relates to the technical field of plastic film slitting, in particular to a plastic film slitting machine convenient to adjust the slitting width. According to the technical scheme, the plastic film splitting machine convenient to adjust the splitting width comprises a main frame body, a film head clamping mechanism, a movable film tail clamping mechanism and a cutting mechanism; the top of the main frame body is a slope; the film head clamping mechanism is fixedly arranged at one end of the top of the main frame body and used for clamping the head of a plastic film to be slit. The movable film tail clamping mechanism is arranged on the main frame body in a sliding mode and used for clamping the tail of the plastic film to be slit. The cutting mechanism is arranged on the movable film tail clamping mechanism and used for cutting the plastic film to be slit. The plastic film splitting machine with the splitting width convenient to adjust solves the technical problem that an existing splitting machine can only be used for splitting a plastic film with a single width.

Description

Technical Field

[0001] This utility model relates to the field of plastic film slitting technology, and in particular to a plastic film slitting machine that is easy to adjust the slitting width. Background Technology

[0002] Films made of polyvinyl chloride, polyethylene, polypropylene, polystyrene, and other resins are used for packaging and as coating layers. Plastic packaging and plastic packaging products are gaining an increasingly larger market share, especially composite plastic flexible packaging, which is widely used in the food, pharmaceutical, and chemical industries.

[0003] Before use, plastic film needs to be cut into appropriately sized segments using a slitting machine. The general cutting method involves clamping the head and tail of the plastic film and then cutting it with a blade. However, existing slitting machines have fixed blade positions, as well as fixed positions for the head and tail clamping mechanisms. This makes it impossible for the slitting machine to cut plastic films of different widths. Utility Model Content

[0004] This invention provides a plastic film slitting machine that facilitates adjustment of the slitting width, solving the technical problem that existing slitting machines can only cut plastic films of a single width.

[0005] To achieve this technical objective, the present invention adopts the following solution: a plastic film slitting machine with adjustable slitting width, comprising a main frame, a film head clamping mechanism, a movable film tail clamping mechanism, and a cutting mechanism;

[0006] The top of the main frame is a slope;

[0007] The film head clamping mechanism is fixed at one end of the top of the main frame and is used to clamp the head of the plastic film to be cut.

[0008] The movable film tail clamping mechanism is slidably mounted on the main frame and is used to clamp the tail of the plastic film to be cut.

[0009] The cutting mechanism is mounted on the movable film tail clamping mechanism and is used to cut the plastic film to be slit.

[0010] Furthermore, the main frame has through slots.

[0011] Furthermore, the film head clamping mechanism includes a first fixing frame, a support plate, a first electric push rod, and a first pressure plate;

[0012] The first fixing frame is located outside the main frame and is fixed to the main frame.

[0013] The support plate is set inside the main frame, and both ends of the support plate are fixedly connected to the two inner side walls of the main frame, respectively. The support plate is set below the first fixed frame.

[0014] The fixed end of the first electric actuator is fixed on the first fixed frame, and the movable end of the first electric actuator extends toward the support plate;

[0015] The first pressure plate is fixed at the bottom of the movable end of the first electric push rod, and the head of the plastic film to be cut is sandwiched between the first pressure plate and the support plate.

[0016] Furthermore, the movable film tail clamping mechanism includes a sliding plate, a second fixing frame, a second electric push rod, and a second pressure plate;

[0017] The sliding plate is slidably mounted on the main frame;

[0018] The second fixing bracket is fixed to the top of the sliding plate;

[0019] The fixed end of the second electric actuator is fixed to the top of the second fixed frame, and the movable end of the second electric actuator extends toward the sliding plate;

[0020] The second pressure plate is fixed at the bottom of the movable end of the second electric push rod, and the tail of the plastic film to be cut is sandwiched between the second pressure plate and the sliding plate.

[0021] Furthermore, the two inner sidewalls of the main frame are provided with grooves, and the sliding plate is fixed with a slider, which is slidably disposed in the groove.

[0022] Furthermore, a connecting rod is fixed inside the main frame, which is used to connect two opposite side walls of the main frame;

[0023] The connecting rod is rotatably connected to a cylinder, and the movable end of the cylinder is rotatably connected to the bottom of the sliding plate.

[0024] Furthermore, the cutting mechanism includes a third fixed frame, a motor, a lead screw, a moving block, and a blade;

[0025] The third fixing frame is fixed on the top of the sliding plate. The third fixing frame is located between the film head clamping mechanism and the movable film tail clamping mechanism. A slot is provided at the bottom of the top surface of the third fixing frame, and the slot extends along the length of the third fixing frame.

[0026] The motor is fixedly mounted on the outside of the third mounting bracket;

[0027] The lead screw and the motor output shaft are coaxially and fixedly connected.

[0028] The movable block and the lead screw are connected by a thread, and the movable block is locked in the slot.

[0029] The blade is fixed to the bottom of the moving block.

[0030] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0031] This invention features a movable film tail clamping mechanism, allowing adjustment of the distance between the tail clamping mechanism and the head clamping mechanism, thereby adjusting the width of the plastic film between them, and consequently, the width of the cut plastic film. Simultaneously, a cutting mechanism is mounted on the movable film tail clamping mechanism, meaning the cutting mechanism can slide along with it, changing its cutting position. Changing the position of the movable film tail clamping mechanism adjusts the width of the cut plastic film. Attached Figure Description

[0032] Figure 1 A schematic diagram of a plastic film slitting machine that facilitates adjustment of the slitting width, provided for an embodiment of this utility model;

[0033] Figure 2 Another schematic diagram of a plastic film slitting machine that facilitates adjustment of the slitting width, provided by an embodiment of this utility model (the plastic film to be slitted is hidden):

[0034] Figure 3 for Figure 2 Enlarged view of section A in the middle;

[0035] Figure 4 Another schematic diagram of a plastic film slitting machine that facilitates adjustment of the slitting width, provided for an embodiment of this utility model (the plastic film to be slitted is hidden);

[0036] Figure 5 for Figure 4 Enlarged view of section B in the middle;

[0037] Figure 6 Another schematic diagram of a plastic film slitting machine that facilitates adjustment of the slitting width, provided for an embodiment of this utility model (the plastic film to be slitted is hidden);

[0038] Figure 7 for Figure 6 Enlarged view of section C.

[0039] Explanation of reference numerals in the attached figures:

[0040] 1. Main frame; 11. Through groove; 12. Slide groove; 2. Film head clamping mechanism; 21. First fixed frame; 22. Support plate; 23. First electric push rod; 24. First pressure plate; 3. Film tail clamping mechanism; 31. Sliding plate; 32. Second fixed frame; 33. Second electric push rod; 34. Second pressure plate; 4. Cutting mechanism; 41. Third fixed frame; 411. Slot; 42. Motor; 43. Lead screw; 44. Moving block; 45. Blade; 5. Plastic film to be cut; 6. Connecting rod; 7. Cylinder. Detailed Implementation

[0041] To fully understand the purpose, features and effects of this utility model, the following specific embodiments will be used to describe this utility model in detail, but this utility model is not limited thereto.

[0042] like Figures 1 to 7 As shown, this utility model provides a plastic film slitting machine with easily adjustable slitting width, including a main frame 1, a film head clamping mechanism 2, a movable film tail clamping mechanism 3, and a cutting mechanism 4. The top of the main frame 1 is sloped to facilitate... Figure 1 For example, the left side of the top of the main frame 1 is higher than the right side. The main frame 1 has a through slot 11, which allows hands or handling devices to be placed into the through slot 11 for easy handling.

[0043] The film head clamping mechanism 2 is fixed to one end of the top of the main frame 1 and is used to clamp the head of the plastic film 5 to be cut. In this embodiment, the film head clamping mechanism 2 is located on the lower side of the top surface of the main frame 1.

[0044] The film head clamping mechanism 2 includes a first fixing frame 21, a support plate 22, a first electric push rod 23, and a first pressure plate 24. The first fixing frame 21 has a bridge-like structure and spans the entire main frame 1. For details, please refer to... Figure 4 A first fixing frame 21 is disposed on the outside of the main frame 1 and is fixed to the main frame 1. A support plate 22 is disposed inside the main frame 1, and both ends of the support plate 22 are fixedly connected to the two inner side walls of the main frame 1, respectively. The support plate 22 is disposed below the first fixing frame 21. The fixed end of the first electric push rod 23 is fixed to the first fixing frame 21, and the movable end of the first electric push rod 23 extends toward the support plate 22. Preferably, the first electric push rod 23 is disposed in the middle of the first fixing frame 21. A first pressure plate 24 is fixed to the bottom of the movable end of the first electric push rod 23. The first pressure plate 24 can abut against the support plate 22, and the head of the plastic film 5 to be cut is sandwiched between the first pressure plate 24 and the support plate 22.

[0045] A movable film tail clamping mechanism 3 is slidably mounted on the main frame 1 to clamp the tail of the plastic film 5 to be cut. In this embodiment, the movable film tail clamping mechanism 3 is located at the higher end of the top surface of the main frame 1.

[0046] The movable film tail clamping mechanism 3 includes a sliding plate 31, a second fixed frame 32, a second electric push rod 33, and a second pressure plate 34. The sliding plate 31 is slidably mounted on the main frame 1. As a sliding connection, grooves 12 are provided on both opposite inner sidewalls of the main frame 1. A slider is fixed to the sliding plate 31 and slidably mounted within the grooves 12. The second fixed frame 32 is fixed to the top of the sliding plate 31. The fixed end of the second electric push rod 33 is fixed to the top of the second fixed frame 32, and the movable end of the second electric push rod 33 extends towards the sliding plate 31. Preferably, the second electric push rod 33 is fixed to the middle of the second fixed frame 32. The second pressure plate 34 is fixed to the bottom of the movable end of the second electric push rod 33. The second pressure plate 34 can abut against the sliding plate 31, and the tail of the plastic film 5 to be cut is clamped between the second pressure plate 34 and the sliding plate 31.

[0047] As a means of driving the sliding plate 31 to move, a connecting rod 6 is fixedly installed inside the main frame 1. The two ends of the connecting rod 6 are respectively fixedly connected to the two inner side walls opposite to the main frame 1. The connecting rod 6 has the function of strengthening the connection stability of the main frame 1 relative to the two side walls. A cylinder 7 is rotatably connected to the connecting rod 6. Specifically, the connecting rod 6 is rotatably connected to the fixed end of the cylinder 7, and the movable end of the cylinder 7 is rotatably connected to the bottom of the sliding plate 31.

[0048] The cutting mechanism 4 is mounted on the movable film tail clamping mechanism 3 and is used to cut the plastic film 5 to be cut. The cutting mechanism 4 includes a third fixed frame 41, a motor 42, a lead screw 43, a moving block 44, and a blade 45. The third fixed frame 41 is fixed to the top of the sliding plate 31 and is located between the film head clamping mechanism 2 and the movable film tail clamping mechanism 3. A slot 411 is provided at the bottom of the top surface of the third fixed frame 41, and the slot 411 extends along the length of the third fixed frame 41. The motor 42 is fixedly mounted on the outside of the third fixed frame 41. The lead screw 43 and the output shaft of the motor 42 are coaxially fixedly connected. The moving block 44 is threadedly connected to the lead screw 43 and is engaged in the slot 411. The blade 45 is fixed to the bottom of the moving block 44.

[0049] In use, first raise the first electric push rod 23 and the second electric push rod 33 to separate the first pressure plate 24 from the support plate 22 and the second pressure plate 34 from the sliding plate 31. Pass the head of the plastic film 5 to be cut through the gap between the second pressure plate 34 and the sliding plate 31, and then place the head of the plastic film 5 to be cut flat on the support plate 22. Then, start the first electric push rod 23, which drives the first pressure plate 24 to press down, so that the head of the plastic film 5 to be cut is clamped between the first pressure plate 24 and the support plate 22.

[0050] Then, start cylinder 7 and adjust the position of sliding plate 31 so that the distance between film head clamping mechanism 2 and film tail clamping mechanism 3 is appropriate. Then, grasp the tail of the plastic film 5 to be cut by hand to make the plastic film taut. Then, start the second electric push rod 33. The second electric push rod 33 drives the second pressure plate 34 to press down, so that the tail of the plastic film 5 to be cut is clamped between the second pressure plate 34 and sliding plate 31.

[0051] Next, the motor 42 is started, which drives the lead screw 43 to rotate. The moving block 44 slides along the lead screw 43, and the moving block 44 drives the blade 45 to move, thereby completing the cutting of the plastic film.

[0052] Finally, it should be noted that the above-listed embodiments are merely preferred embodiments of the present invention. Of course, those skilled in the art can make modifications and variations to the present invention. If such modifications and variations fall within the scope of the claims of the present invention and their equivalents, they should be considered as being within the protection scope of the present invention.

Claims

1. A plastic film slitting machine with easily adjustable slitting width, characterized in that, It includes a main frame (1), a film head clamping mechanism (2), a movable film tail clamping mechanism (3), and a cutting mechanism (4); The top of the main frame (1) is a slope; The film head clamping mechanism (2) is fixed at one end of the top of the main frame (1) and is used to clamp the head of the plastic film (5) to be cut. The movable film tail clamping mechanism (3) is slidably mounted on the main frame (1) and is used to clamp the tail of the plastic film (5) to be cut. The cutting mechanism (4) is mounted on the movable film tail clamping mechanism (3) and is used to cut the plastic film to be cut (5).

2. A plastic film slitting machine with easily adjustable slitting width according to claim 1, characterized in that, The main frame (1) has a through slot (11).

3. A plastic film slitting machine with easily adjustable slitting width according to claim 1, characterized in that, The film head clamping mechanism (2) includes a first fixing frame (21), a support plate (22), a first electric push rod (23) and a first pressure plate (24); The first fixing frame (21) is disposed outside the main frame (1) and the first fixing frame (21) is fixed on the main frame (1); The support plate (22) is disposed inside the main frame (1), and the two ends of the support plate (22) are respectively fixedly connected to the two inner side walls of the main frame (1). The support plate (22) is disposed below the first fixed frame (21). The fixed end of the first electric actuator (23) is fixed on the first fixed frame (21), and the movable end of the first electric actuator (23) extends toward the support plate (22); The first pressure plate (24) is fixed at the bottom of the movable end of the first electric push rod (23), and the head of the plastic film (5) to be cut is sandwiched between the first pressure plate (24) and the support plate (22).

4. A plastic film slitting machine with adjustable slitting width according to claim 3, characterized in that, The movable film tail clamping mechanism (3) includes a sliding plate (31), a second fixing frame (32), a second electric push rod (33), and a second pressure plate (34); The sliding plate (31) is slidably mounted on the main frame (1); The second fixing bracket (32) is fixed to the top of the sliding plate (31); The fixed end of the second electric actuator (33) is fixed to the top of the second fixed frame (32), and the movable end of the second electric actuator (33) extends toward the sliding plate (31); The second pressure plate (34) is fixed at the bottom of the movable end of the second electric push rod (33), and the tail of the plastic film (5) to be cut is sandwiched between the second pressure plate (34) and the sliding plate (31).

5. A plastic film slitting machine with easily adjustable slitting width according to claim 4, characterized in that, The two inner sidewalls opposite to each other of the main frame (1) are provided with sliding grooves (12), and the sliding plate (31) is fixed with a slider, which is slidably disposed in the sliding groove (12).

6. A plastic film slitting machine with easily adjustable slitting width according to claim 5, characterized in that, The main frame (1) is internally fixed with a connecting rod (6), which is used to connect two opposite side walls of the main frame (1); The connecting rod (6) is rotatably connected to a cylinder (7), and the movable end of the cylinder (7) is rotatably connected to the bottom of the sliding plate (31).

7. A plastic film slitting machine with easily adjustable slitting width according to claim 6, characterized in that, The cutting mechanism (4) includes a third fixed frame (41), a motor (42), a lead screw (43), a moving block (44), and a blade (45); The third fixing frame (41) is fixed on the top of the sliding plate (31). The third fixing frame (41) is disposed between the film head clamping mechanism (2) and the movable film tail clamping mechanism (3). A slot (411) is provided at the bottom of the top surface of the third fixing frame (41). The slot (411) extends along the length direction of the third fixing frame (41). The motor (42) is fixedly mounted on the outside of the third fixing frame (41); The lead screw (43) and the output shaft of the motor (42) are coaxially and fixedly connected; The movable block (44) and the lead screw (43) are threadedly connected, and the movable block (44) is engaged in the slot (411); The blade (45) is fixed to the bottom of the movable block (44).

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