Plastic film cutting device

Abstract

The utility model relates to the technical field of plastic film cutting, in particular to a plastic film cutting device which comprises a machine tool, supporting legs are fixedly connected to the four corners of the bottom of the machine tool, a motor is fixedly connected to the top of the machine tool, and an output shaft of the motor is fixedly connected with a rotating rod. The end, away from the motor, of the rotating rod is fixedly connected with a gear, and a guide wheel is arranged at the top of the machine tool and located between the mounting frame and the rectangular groove. According to the utility model, through mutual cooperation of the arc-shaped plate, the meshing teeth, the motor, the gear, the rotating arm and the round roller, one side of a plastic film is straightened by lifting the height of the first winding roller, and the other side of the plastic film is straightened by rolling the round roller along the film on the motion trail of the cutter, so that when the cutter cuts the plastic film, the plastic film can be straightened, and the cutting efficiency is improved. Manual operation is not needed, time and labor are saved, the cutting uniformity is improved, the working efficiency is improved, and wide application is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic film cutting, in particular to a plastic film cutting device. Background Art

[0002] Plastic film is a film made of polyvinyl chloride, polyethylene, polypropylene, polystyrene and other resins, used for packaging and as a coating layer.

[0003] Plastic film needs to be cut during production and processing. Currently, most cutting is done manually, which is not only time-consuming and labor-intensive, but also uneven and inconvenient for widespread use. Based on this, the utility model designs a plastic film cutting device to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to solve the problems in the background technology and to propose a plastic film cutting device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a plastic film cutting device, comprising a machine tool, wherein the four corners of the bottom of the machine tool are fixedly connected to support legs, the top of the machine tool is fixedly connected to a motor, the output shaft of the motor is fixedly connected to a rotating rod, the end of the rotating rod away from the motor is fixedly connected to a gear, the top of the machine tool is provided with a guide wheel between the mounting frame and the rectangular slot, the outer surface of the mounting frame is provided with a control panel for controlling the start of the electronic control element, a rectangular slot is provided on the machine tool, the inner wall of the rectangular slot is slidably penetrated by an arc plate, the back of the arc plate is provided with teeth, The arc plate is meshed with the gear through meshing teeth, and an auxiliary structure is provided at one end of the arc plate, and the auxiliary structure includes two vertical blocks, and the vertical blocks are equipped with connecting arms through an insertion rod, and a rotating rod is rotatably connected between the connecting arms, and the outer surface of the rotating rod is fixedly connected to the No. 1 winding roller, and the top of the machine tool is fixedly connected to a mounting frame, and an electric push rod is installed on the mounting frame, and the output shaft of the electric push rod is fixedly connected to the cutter, and a mounting structure is provided on the top of the machine tool, and the mounting structure includes a No. 1 mounting plate and a No. 2 mounting plate, and a No. 2 winding roller is installed between the No. 1 mounting plate and the No. 2 mounting plate.

[0006] Preferably, a vertical plate is provided at the bottom of the machine tool, a spring is fixedly connected between the vertical plate and the opposite side of the arc plate, a limiting hole is provided on the side wall of one side of the outer surface of the arc plate, a protrusion is provided on the side wall of the rectangular groove, and a limiting pin with a size matching the size of the limiting hole is slidably inserted inside the protrusion.

[0007] Preferably, the two vertical blocks are symmetrically arranged on the arc plate, the outer surface of the vertical block is provided with a square block, the outer surface of the square block is connected to a connecting rope, and the end of the connecting rope away from the square block is connected to the insertion rod.

[0008] Preferably, a mounting block is provided on the outer surface of the connecting arm, a sliding rod is slidably passed through the inner wall of the mounting block, and one end of the sliding rod is fixedly connected to a ratchet; a spring 2 is sleeved on the outer surface of the sliding rod, and the two ends of the spring 2 are respectively fixedly connected to the sliding rod and the mounting block, and one end of the rotating rod is fixedly connected to a ratchet gear.

[0009] Preferably, the No. 1 mounting plate is fixed on the top of the machine tool, the No. 2 mounting plate is placed on the top of the machine tool, and a limit plate is fixedly installed on one side of the top of the machine tool. A guide rod slides through the inner wall of the limit plate, and one end of the guide rod is fixedly connected to the side wall of the No. 2 mounting plate. A spring three is sleeved on the outer surface of the guide rod, and both ends of the spring three are respectively connected to the No. 2 mounting plate and the limit plate.

[0010] Preferably, both ends of one side of the cutter are fixedly connected to a No. 3 mounting plate, a connecting rod is fixedly connected between the opposite sides of the two No. 3 mounting plates, the outer surfaces of both ends of the connecting rod are rotatably connected to rotating arms, a round roller is rotatably connected between the two rotating arms, the outer surface of the connecting rod is sleeved with a torsion spring, and the two ends of the torsion spring are respectively connected to the rotating arm and the connecting rod.

[0011] In summary:

[0012] In the utility model, through the mutual cooperation of the arc plate, the meshing teeth, the motor, the gear, the rotating arm and the circular roller, it is designed that the height of the No. 1 winding roller is raised and lowered so that one side of the plastic film is stretched straight, and on the movement trajectory of the cutter, the circular roller is designed to roll along the film so that the other side of the plastic film is stretched straight, so that when the cutter cuts the plastic film, not only does it not require manual operation, but it also saves time and labor, and the neatness of cutting is improved, the work efficiency is improved, and it is convenient for wide use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0014] Figure 2 This is a schematic structural diagram of the present invention from another perspective;

[0015] Figure 3 For the utility model Figure 1 Enlarged view of point A in the middle;

[0016] Figure 4 For the utility model Figure 2 Enlarged view of point B in the middle;

[0017] Figure 5 For the utility model Figure 2 Enlarged view of point C in the middle.

[0018] Legend: 1, machine tool; 2, leg; 3, motor; 31, rotating rod; 32, gear; 4, arc plate; 41, meshing tooth; 42, spring one; 43, vertical plate; 44, limit pin; 5, auxiliary structure; 51, vertical block; 52, square block; 53, connecting rope; 54, insertion rod; 55, connecting arm; 56, No. 1 winding roller; 57, rotating rod; 58, ratchet gear; 59, mounting block; 510, pawl; 511, spring two; 6, mounting frame; 7, electric push rod; 8, mounting structure; 81, No. 1 mounting plate; 82, No. 2 mounting plate; 83, limit plate; 84, guide rod; 85, spring three; 9, No. 2 winding roller; 10, cutter; 101, No. 3 mounting plate; 102, rotating arm; 103, connecting rod; 104, torsional spring; 105, round roller; 11, rectangular groove; 12, guide wheel; 13, control panel. DETAILED DESCRIPTION

[0019] Referring to Figure 1-5 The utility model provides a technical scheme: a plastic film cutting device, including machine tool 1, machine tool 1 bottom four corner positions are all fixedly connected with leg 2, the top of machine tool 1 is fixedly connected with motor 3, the output shaft of motor 3 is fixedly connected with rotating rod 31, the end away from motor 3 of rotating rod 31 is fixedly connected with gear 32, the top of machine tool 1 is located between mounting frame 6 and rectangular groove 11 and is provided with guide wheel 12, the outer surface of mounting frame 6 is provided with control panel 13 that controls the start of electric control element.

[0020] Referring to Figure 3 And Figure 4As shown, specifically, a rectangular groove 11 is provided on the machine tool 1, and an arc-shaped plate 4 is slidably passed through the inner wall of the rectangular groove 11. A tooth 41 is provided on the back of the arc-shaped plate 4. The arc-shaped plate 4 meshes with the gear 32 through the tooth 41. A vertical plate 43 is provided at the bottom of the machine tool 1. A spring 42 is fixedly connected between the vertical plate 43 and the opposite side of the arc-shaped plate 4. Start the motor 3 and pull out the limit pin 44. At this time, the motor 3 drives the gear 32 to rotate. The gear 32 meshes with the tooth 41 on the arc-shaped plate 4. At this time, the arc-shaped plate 4 drives the No. 1 winding roller 56 to rise to a certain height, so that the plastic film is straightened. A limiting hole is provided on one side wall of the outer surface of the arc-shaped plate 4, and a convex block is provided on the side wall of the rectangular groove 11. The inner sliding insertion of the block is provided with a limit pin 44 whose size is adapted to the size of the limit hole. An auxiliary structure 5 is provided at one end of the arc plate 4. The auxiliary structure 5 includes two vertical blocks 51. The two vertical blocks 51 are symmetrically arranged on the arc plate 4. The outer surface of the vertical block 51 is provided with a square block 52. The outer surface of the square block 52 is connected with a connecting rope 53. The end of the connecting rope 53 away from the square block 52 is connected with an insertion rod 54. The vertical block 51 is equipped with a connecting arm 55 through the insertion rod 54. The No. 1 winding roller 56 and the connecting arm 55 are placed between the two vertical blocks 51. At this time, the insertion rod 54 is inserted into the vertical block 51 and the connecting arm 55 to fix the connecting arm 55. A rotating rod 57 is rotatably connected between the connecting arms 55. The outer surface of the rotating rod 57 is fixedly connected There is a No. 1 winding roller 56, and a mounting block 59 is provided on the outer surface of the connecting arm 55. A slide rod is slidably passed through the inner wall of the mounting block 59. One end of the slide rod is fixedly connected to a pawl 510. The outer surface of the slide rod is sleeved with a spring 2 511. Through the mutual cooperation of the pawl 510 and the ratchet gear 5832, the No. 1 winding roller 56 will not rotate, thereby improving the stability of the cutter 10 in cutting the plastic film. The two ends of the spring 2 511 are respectively fixedly connected to the slide rod and the mounting block 59. One end of the rotating rod 57 is fixedly connected to the ratchet gear 58. The top of the machine tool 1 is fixedly connected to the mounting frame 6, and the mounting frame 6 is equipped with an electric push rod 7. The output shaft of the electric push rod 7 is fixedly connected to the cutter 10. Both ends of one side of the cutter 10 They are both fixedly connected with the No. 3 mounting plate 101, and a connecting rod 103 is fixedly connected between the opposite sides of the two No. 3 mounting plates 101. The outer surfaces of both ends of the connecting rod 103 are rotatably connected with rotating arms 102, and a round roller 105 is rotatably connected between the two rotating arms 102. The outer surface of the connecting rod 103 is sleeved with a torsion spring 104, and the two ends of the torsion spring 104 are respectively connected to the rotating arm 102 and the connecting rod 103. Start the electric push rod 7, so that the electric push rod 7 drives the cutter 10 to move downward. At this time, the rotating arm 102 on one side of the cutter 10 rotates due to the descent of the cutter 10, causing the torsion spring 104 to twist, and the round roller 105 on the rotating arm 102 rolls along the film, making the plastic film further straightened.

[0021] Reference Figure 5As shown, in this embodiment: a mounting structure 8 is provided on the top of the machine tool 1, and the mounting structure 8 includes a No. 1 mounting plate 81 and a No. 2 mounting plate 82. The No. 1 mounting plate 81 is fixed to the top of the machine tool 1, and the No. 2 mounting plate 82 is placed on the top of the machine tool 1. A limit plate 83 is fixedly installed on one side of the top of the machine tool 1. A guide rod 84 slides through the inner wall of the limit plate 83. One end of the guide rod 84 is fixedly connected to the side wall of the No. 2 mounting plate 82. The outer surface of the guide rod 84 is provided with a spring 3 85. The two ends of the spring 3 85 are respectively connected to the No. 2 mounting plate 82. The No. 1 mounting plate 82 is connected to the limit plate 83, and the No. 2 winding roller 9 is installed between the No. 1 mounting plate 81 and the No. 2 mounting plate 82. The No. 2 mounting plate 82 is slid so that the No. 2 mounting plate 82 slides along the inner wall of the limit plate 83 through the guide rod 84 and squeezes the spring three 85. Then the No. 2 winding roller 9 that needs to wind up the plastic film is placed between the No. 1 mounting plate 81 and the No. 2 mounting plate 82. At this time, the rebound force of the spring three 85 makes the shafts at both ends of the No. 2 winding roller 9 sleeve on the No. 1 mounting plate 81 and the No. 2 mounting plate 82.

[0022] Working principle: When it is necessary to cut the plastic film, the No. 1 winding roller 56 and the connecting arm 55 with the plastic film are placed between the two vertical blocks 51. At this time, the insertion rod 54 is inserted into the vertical block 51 and the connecting arm 55 to fix the connecting arm 55. At this time, the No. 2 mounting plate 82 is slid so that the No. 2 mounting plate 82 slides along the inner wall of the limit plate 83 through the guide rod 84 and squeezes the spring three 85. Then, the No. 2 winding roller 9 that needs to be wound up is placed between the No. 1 mounting plate 81 and the No. 2 mounting plate 82. At this time, the rebound force of the spring three 85 causes the shafts at both ends of the No. 2 winding roller 9 to The plastic film on the No. 1 winding roller 56 is wound by the No. 2 winding roller 9. When the film is wound to a certain length, the motor 3 is started through the control panel 13. The limit pin 44 is pulled out. The motor 3 drives the gear 32 to rotate. The gear 32 engages with the teeth 41 on the curved plate 4. The curved plate 4 drives the No. 1 winding roller 56 to rise to a certain height. At this time, the plastic film is straightened. The limit pin 44 is inserted into the limit hole and the electric push rod 7 is started. The electric push rod 7 drives the cutter 10 to move downward. The cutter 10 The rotating arm 102 on one side rotates because of the descent of the cutter 10, causing the torsion spring 104 to twist, and the round roller 105 on the rotating arm 102 rolls along the film, making the plastic film further straightened, so that both ends of the plastic film are stretched as much as possible. At this time, the cutter 10 cuts on the plastic film, which will improve the cutting neatness. When the cutter 10 rises, the torsion spring 104 causes the rotating arm 102 to rotate and reset. Through the mutual cooperation of the arc plate 4, the gear 41, the motor 3, the gear 32, the rotating arm 102 and the round roller 105, the height of the first winding roller 56 is designed to be raised and lowered. One side of the plastic film is straightened, and a circular roller 105 is designed to roll along the film on the motion trajectory of the cutter 10, so that the other side of the plastic film is straightened. When the cutter 10 cuts the plastic film, not only does it not require manual operation, which saves time and effort, but also improves the cutting neatness, improves work efficiency, and is convenient for wide use. At the same time, it prevents the No. 1 winding roller 56 from rotating when cutting the plastic film. Through the mutual cooperation of the pawl 510 and the ratchet gear 5832, the No. 1 winding roller 56 will not rotate, thereby improving the stability of the cutter 10 in cutting the plastic film and improving the practicality of the device.

[0023] The above-mentioned electrical components are all available on the market, so the wiring and wire connections are not related to innovation and will not be elaborated on. Some electrical components can also be obtained through private customization, so they will not be described in detail.

[0024] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

Claims

1. A plastic film cutting device, comprising a machine tool (1), wherein the four corners of the bottom of the machine tool (1) are fixedly connected to support legs (2), the top of the machine tool (1) is fixedly connected to a motor (3), the output shaft of the motor (3) is fixedly connected to a rotating rod (31), the end of the rotating rod (31) away from the motor (3) is fixedly connected to a gear (32), the top of the machine tool (1) is provided with a guide wheel (12) between a mounting frame (6) and a rectangular groove (11), and the outer surface of the mounting frame (6) is provided with a control panel (13) for controlling the activation of an electronic control element, characterized in that: The machine tool (1) is provided with a rectangular groove (11), the inner wall of the rectangular groove (11) is slidably penetrated by an arc plate (4), the back of the arc plate (4) is provided with a tooth (41), the arc plate (4) is meshed with the gear (32) through the tooth (41), one end of the arc plate (4) is provided with an auxiliary structure (5), the auxiliary structure (5) includes two vertical blocks (51), the vertical blocks (51) are equipped with a connecting arm (55) through an insert rod (54), and a rotating rod (57) is rotatably connected between the connecting arms (55). ), the outer surface of the rotating rod (57) is fixedly connected to a first winding roller (56), the top of the machine tool (1) is fixedly connected to a mounting frame (6), the mounting frame (6) is equipped with an electric push rod (7), the output shaft of the electric push rod (7) is fixedly connected to a cutter (10), the top of the machine tool (1) is provided with a mounting structure (8), the mounting structure (8) includes a first mounting plate (81) and a second mounting plate (82), and a second winding roller (9) is mounted between the first mounting plate (81) and the second mounting plate (82).

2. A plastic film cutting device according to claim 1, characterized in that: A vertical plate (43) is provided at the bottom of the machine tool (1), a spring (42) is fixedly connected between the vertical plate (43) and a side opposite to the arc plate (4), a limiting hole is provided on one side wall of the outer surface of the arc plate (4), a convex block is provided on the side wall of the rectangular groove (11), and a limiting pin (44) having a size adapted to the size of the limiting hole is slidably inserted into the interior of the convex block.

3. The plastic film cutting device according to claim 1, characterized in that: The two vertical blocks (51) are symmetrically arranged on the arc-shaped plate (4); a square block (52) is arranged on the outer surface of the vertical block (51); a connecting rope (53) is connected to the outer surface of the square block (52); and an end of the connecting rope (53) away from the square block (52) is connected to an insertion rod (54).

4. The plastic film cutting device according to claim 1, characterized in that: The outer surface of one of the connecting arms (55) is provided with a mounting block (59), the inner wall of the mounting block (59) is slidably penetrated by a sliding rod, one end of which is fixedly connected to a ratchet (510). The outer surface of the sliding rod is provided with a second spring (511), the two ends of the second spring (511) are respectively fixedly connected to the sliding rod and the mounting block (59), and one end of the rotating rod (57) is fixedly connected to a ratchet gear (58).

5. The plastic film cutting device according to claim 1, characterized in that: The first mounting plate (81) is fixed on the top of the machine tool (1), the second mounting plate (82) is placed on the top of the machine tool (1), and a limit plate (83) is fixedly installed on one side of the top of the machine tool (1). A guide rod (84) is slidably passed through the inner wall of the limit plate (83), one end of the guide rod (84) is fixedly connected to the side wall of the second mounting plate (82), and a spring (85) is sleeved on the outer surface of the guide rod (84), and the two ends of the spring (85) are respectively connected to the second mounting plate (82) and the limit plate (83).

6. The plastic film cutting device according to claim 1, characterized in that: The two ends of one side of the cutter (10) are fixedly connected to a No. 3 mounting plate (101), a connecting rod (103) is fixedly connected between the two opposite sides of the No. 3 mounting plates (101), the outer surfaces of both ends of the connecting rod (103) are rotatably connected to a rotating arm (102), a round roller (105) is rotatably connected between the two rotating arms (102), a torsion spring (104) is sleeved on the outer surface of the connecting rod (103), and the two ends of the torsion spring (104) are respectively connected to the rotating arm (102) and the connecting rod (103).

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