Plastic film cutting device

Abstract

The utility model discloses a plastic film cutting device which comprises a bottom box, a first opening and a second opening are formed in the top wall of the bottom box, a first L-shaped plate is fixed to one side of the upper surface of the bottom box, an unwinding assembly for unwinding a plastic film is installed at the bottom end of the first L-shaped plate, and a pressing assembly is installed at the top end of the first L-shaped plate. And a plurality of supporting rollers are rotationally connected into the first opening. According to the plastic film cutting device, the bottom box, the unwinding assembly, the pressing assembly, the supporting roller, the driving roller, the crease-resistant assembly and the cutting assembly are arranged, when the plastic film cutting device is used, a plastic film on the surface of an unwinding shaft is pressed through the pressing assembly, and the plastic film continues to be pressed through the crease-resistant assembly and the supporting roller in the moving process of the plastic film; therefore, it is guaranteed that wrinkles cannot occur in the moving process of the plastic film, the plastic film is better protected, the surface of the plastic film cannot be extruded, a cutter of the cutting assembly moves up and down, the cutting action of the plastic film is faster, and the cutting efficiency is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to plastic film cutting technical field especially relates to a plastic film cutting device. BACKGROUND

[0002] Plastic film is the most widely used one kind of outer packing product, plastic film not only can be used to package, in the process of agricultural planting in ordinary times is indispensable, plastic film can also be used to shelter from the rain in rainy days, in the construction of greenhouse is also indispensable important material, the plastic film after making usually needs to be cut.

[0003] Through the retrieval, the patent with the authorization announcement No. CN216613449U discloses a kind of plastic film roll cutting device, it is rotated by being driven by drive motor and first threaded rod, moving block is equipped with thread inside, and then moving block can move on first threaded rod and cross bar when first threaded rod rotates, to move cutter in cutter groove, solve the problem that cutter is easy to jam.The device is actually used, the process of cutter moving driven by screw rod is relatively slow, although it does not appear jam in the process of operation, but the speed of cutter is too slow, will affect cutting efficiency;Secondly, plastic film may wrinkle in middle during movement due to tension of pulling, the device cannot effectively avoid wrinkle during movement of plastic film, therefore needs to be further improved. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings in prior art and provides a plastic film cutting device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a plastic film cutting device, comprising a bottom box, a first opening and a second opening are formed in the top wall of the bottom box, a first L-shaped plate is fixed on one side of the upper surface of the bottom box, a plastic film unwinding assembly is installed at the bottom end of the first L-shaped plate, a pressing assembly is installed at the top end of the first L-shaped plate, a plurality of supporting rollers are rotatably connected inside the first opening, a drive roller is rotatably connected inside the second opening, an anti-wrinkle assembly is installed above the supporting rollers and the drive roller on the upper surface of the bottom box, a cutting assembly is installed on the side of the drive roller on the upper surface of the bottom box, and a controller is installed on the outer wall of the bottom box.

[0006] Further, the unwinding assembly includes a first motor fixed to the surface of the first L-shaped plate, the output shaft of the first motor passes through the first L-shaped plate and is fixedly connected with an unwinding shaft, the surface of the unwinding shaft is wound with plastic film, and the first motor is electrically connected with the controller.

[0007] Further, the pressing assembly comprises a first air cylinder fixed to the top end of the first L-shaped plate, a sleeve is sleeved on the surface of the telescopic end of the bottom of the first air cylinder, a spring is fixedly connected to the bottom wall in the sleeve and the telescopic end of the first air cylinder, a wheel frame is fixedly connected to the bottom end of the sleeve, and a first compression roller is rotatably connected in the wheel frame, and the first air cylinder is electrically connected with the controller.

[0008] Further, a second motor is installed on the outer side wall of the bottom box and close to the driving roller, the output shaft of the second motor is fixedly connected with the driving roller, and the second motor is electrically connected with the controller.

[0009] Further, the anti-wrinkle assembly comprises a second L-shaped plate fixed to the upper surface of the bottom box, a second air cylinder is fixed to the top end of the second L-shaped plate, a U-shaped plate is fixed to the bottom telescopic end of the second air cylinder, a plurality of second compression rollers are rotatably connected in the U-shaped plate, and the second air cylinder is electrically connected with the controller.

[0010] Further, the cutting assembly comprises a third L-shaped plate fixed to the upper surface of the bottom box, a third air cylinder is fixed to the top end of the third L-shaped plate, a cutter is fixedly connected to the bottom telescopic end of the third air cylinder, and the third air cylinder is electrically connected with the controller.

[0011] Further, a groove is formed in the upper surface of the bottom box and directly below the cutter.

[0012] The beneficial effects of the utility model are as follows:

[0013] In use, the plastic film cutting device is provided with a bottom box, a unwinding assembly, a pressing assembly, a supporting roller, a driving roller, an anti-wrinkle assembly and a cutting assembly. When the device is used, the plastic film on the surface of the unwinding shaft is pressed by the pressing assembly, and the plastic film is continuously pressed by the anti-wrinkle assembly and the supporting roller during movement, so that wrinkles do not occur during the movement of the plastic film, the plastic film is better protected, the surface of the plastic film is not extruded, and the cutter of the cutting assembly moves up and down to realize faster cutting action of the plastic film and high cutting efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme of the utility model, the following will be a brief description of the drawings needed in the specific implementation mode, and obviously, the following description of the drawings is only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor.

[0015] Figure 1 The overall perspective view of the utility model;

[0016] Figure 2 The overall sectional view of the utility model;

[0017] Figure 3 The utility model discloses Figure 2 The enlarged view of A in the figure.

[0018] The reference signs are as follows:

[0019] 1, bottom box;101, first opening;102, second opening;2, first L-shaped plate;3, unwinding assembly;31, first motor;32, unwinding shaft;4, pressing assembly;41, first cylinder;42, sleeve;43, spring;44, wheel frame;45, first compression roller;5, support roller;6, drive roller;7, second motor;8, anti-wrinkle assembly;81, second L-shaped plate;82, second cylinder;83, U-shaped plate;84, second compression roller;9, cutting assembly;91, third L-shaped plate;92, third cylinder;93, cutter;10, groove;11, controller. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0021] As Figures 1-3 shown, it relates to a kind of plastic film cutting device, including bottom box 1, first opening 101 and second opening 102 are set in the top wall of bottom box 1, first L-shaped plate 2 is fixed on the upper surface of bottom box 1 side, unwinding assembly 3 for the unwinding of plastic film is installed at the bottom end of first L-shaped plate 2, pressing assembly 4 is installed at the top end of first L-shaped plate 2, a plurality of support rollers 5 are rotatably connected in first opening 101, drive roller 6 is rotatably connected in second opening 102, anti-wrinkle assembly 8 is installed on the upper surface of bottom box 1 and above support roller 5 and drive roller 6, cutting assembly 9 is installed on the upper surface of bottom box 1 and close to drive roller 6 side, controller 11 is installed on the outer wall of bottom box 1.

[0022] In the embodiment, the operation of each component is controlled by controller 11.

[0023] Unwinding assembly 3 includes first motor 31 fixed on the surface of first L-shaped plate 2, the output shaft of first motor 31 passes through first L-shaped plate 2 and is fixedly connected with unwinding shaft 32, and unwinding shaft 32 surface is wound with plastic film, and first motor 31 is electrically connected with controller 11.

[0024] After first motor 31 drives unwinding shaft 32 to rotate, plastic film can be unwound by unwinding shaft 32.

[0025] The pressing assembly 4 comprises a first cylinder 41 fixed to the top end of the first L-shaped plate 2, the bottom telescopic end surface of the first cylinder 41 is sleeved with a sleeve 42, the inner bottom wall of the sleeve 42 is fixedly connected with a spring 43 together with the telescopic end of the first cylinder 41, the bottom end of the sleeve 42 is fixedly connected with a wheel frame 44, and the first compression roller 45 is rotatably connected in the wheel frame 44, and the first cylinder 41 is electrically connected with the controller 11.

[0026] In the process of unwinding the plastic film, the first cylinder 41 is started to elongate to drive the wheel frame 44 to descend, so that the first compression roller 45 is pressed on the surface of the unwinding shaft 32, which can ensure that the plastic film on the surface of the unwinding shaft 32 is not wrinkled during unwinding.

[0027] The second motor 7 is installed on the outer side wall of the bottom box 1 and close to the driving roller 6, the output shaft of the second motor 7 is fixedly connected with the driving roller 6, and the second motor 7 is electrically connected with the controller 11.

[0028] After the driving roller 6 is driven to rotate by the second motor 7, under the action of friction, the driving roller 6 drives the plastic film on its surface to move.

[0029] The anti-wrinkle assembly 8 comprises a second L-shaped plate 81 fixed to the upper surface of the bottom box 1, a second cylinder 82 fixed to the top end of the second L-shaped plate 81, a U-shaped plate 83 fixed to the bottom telescopic end of the second cylinder 82, a plurality of second compression rollers 84 rotatably connected in the U-shaped plate 83, and the second cylinder 82 is electrically connected with the controller 11.

[0030] The second cylinder 82 drives the plurality of second compression rollers 84 to descend, the plastic film is extruded by the supporting roller 5 and the plurality of second compression rollers 84, and one of the second compression rollers 84 above the driving roller 6 also presses the plastic film on the surface of the driving roller 6, increasing the friction between the driving roller 6 and the plastic film.

[0031] The cutting assembly 9 comprises a third L-shaped plate 91 fixed to the upper surface of the bottom box 1, a third cylinder 92 fixed to the top end of the third L-shaped plate 91, a cutter 93 fixedly connected to the bottom telescopic end of the third cylinder 92, and the third cylinder 92 is electrically connected with the controller 11.

[0032] The third cylinder 92 drives the cutter 93 to descend, which can realize the cutting of the plastic film by the cutter 93.

[0033] A recess 10 is formed on the upper surface of the bottom box 1 and directly below the cutter 93. The recess 10 is used to match the cutter 93, so that the cutter 93 can be fitted into the recess 10, which is conducive to the cutting of the plastic film.

[0034] Working principle: after the plastic film is pulled out from the surface of the unwinding shaft 32, it passes under the second compression roller 84 and then passes under the cutter 93, then the first cylinder 41 and the second cylinder 82 are started to stretch, the plastic film is extruded by the first compression roller 45 and the second compression roller 84, when cutting starts, the first motor 31 and the second motor 7 rotate a specified stroke, thereby driving the plastic film to move a specified distance, finally the cutter 93 is driven to descend by the third cylinder 92, and the plastic film is cut by the cutter 93.

[0035] The preferred embodiments disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details and limit the utility model to the specific implementation. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the utility model, so that the person skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the whole scope and equivalents.

Claims

1. A plastic film cutting device comprising a base box (1), characterized in that: The bottom box (1) top wall is provided with a first opening (101) and a second opening (102), the bottom box (1) upper surface one side is fixed with first L-shaped plate (2), first L-shaped plate (2) bottom end is installed to the plastic film unwinding assembly (3) that unwinds, first L-shaped plate (2) top end is installed to the compression assembly (4), the first opening (101) inside rotationally connected with a plurality of supporting roller (5), the second opening (102) inside rotationally connected with drive roller (6), the bottom box (1) upper surface and located supporting roller (5) and drive roller (6) above is installed to the anti-wrinkle assembly (8), the bottom box (1) upper surface is close to drive roller (6) one side and is installed to cutting assembly (9), the bottom box (1) outer wall is installed with controller (11).

2. The plastic film cutting device of claim 1, wherein: The unwinding assembly (3) includes a first motor (31) fixed to the surface of the first L-shaped plate (2), the output shaft of the first motor (31) penetrates the first L-shaped plate (2) and is fixedly connected with the unwinding shaft (32), and the unwinding shaft (32) is wound with plastic film on the surface, and the first motor (31) is electrically connected with the controller (11).

3. The plastic film cutting device of claim 1, wherein: The compression assembly (4) includes a first air cylinder (41) fixed to the top end of the first L-shaped plate (2), the bottom telescopic end surface of the first air cylinder (41) is slidably sleeved with a sleeve (42), the inner bottom wall of the sleeve (42) is fixedly connected with a spring (43) together with the telescopic end of the first air cylinder (41), the bottom end of the sleeve (42) is fixedly connected with a wheel carrier (44), and the first compression roller (45) is rotatably connected in the wheel carrier (44), and the first air cylinder (41) is electrically connected with the controller (11).

4. The plastic film cutting apparatus of claim 1, wherein: The bottom box (1) outer wall and close to drive roller (6) place is installed with second motor (7), the output shaft of second motor (7) is fixedly connected with drive roller (6), and second motor (7) is electrically connected with controller (11).

5. The plastic film cutting apparatus of claim 1, wherein: The anti-wrinkle assembly (8) includes a second L-shaped plate (81) fixed to the upper surface of the bottom box (1), a second air cylinder (82) is fixed to the top end of the second L-shaped plate (81), a U-shaped plate (83) is fixed to the bottom telescopic end of the second air cylinder (82), a plurality of second compression rollers (84) are rotatably connected in the U-shaped plate (83), and the second air cylinder (82) is electrically connected with the controller (11).

6. The plastic film cutting apparatus of claim 1, wherein: The cutting assembly (9) includes a third L-shaped plate (91) fixed to the upper surface of the bottom box (1), a third air cylinder (92) is fixed to the top end of the third L-shaped plate (91), a cutter (93) is fixedly connected to the bottom telescopic end of the third air cylinder (92), and the third air cylinder (92) is electrically connected with the controller (11).

7. The plastic film cutting apparatus of claim 6, wherein: The recess (10) is arranged on the upper surface of the bottom box (1) below the cutter (93).

Images