A cutting device for plastic film production

Abstract

The utility model discloses a cutting device for plastic film production relates to the field of plastic film production, include: support frame, cutting knife, the cutting knife telescopic connection in support frame inside top, the receiving plate is set up in the cutting knife below, is used for receiving plastic film, wherein, the side of cutting knife is provided with first cylinder and second cylinder and rotates up and down, the plastic film is passed between first cylinder and second cylinder, a plurality of extension holes are opened to first cylinder outside, and a plurality of extension holes are all provided with thorn and are telescopic in the inside, in the practical operation of the utility model, when electric push rod drives thorn and extends first cylinder, can stab into the plastic film surface, and the distribution of need cutting is pre -bore, when bore is completed, using cutting knife to bore position again carries out cutting, can further improve the accuracy and efficiency of cutting, reduce the phenomenon that plastic film cutting produces sticky constantly.

Description

Technical Field

[0001] This utility model relates to the field of plastic film production, and in particular to a cutting device for plastic film production. Background Technology

[0002] With the widespread application of plastic films in packaging, agriculture, industry, and other fields, their production technology is constantly evolving. The main forming methods for plastic films include casting, extrusion, and blow molding. Among these, blow molding has become the most commonly used film-forming process due to its simple process, high production efficiency, and low cost. In recent years, the market demand for plastic films has been continuously increasing, and the requirements for film thickness uniformity, mechanical properties, and optical properties are also becoming increasingly stringent.

[0003] In the existing technology, as the cutting blade inside the cutting device is used continuously, the blade tip is easily dulled, and because the plastic film itself has a certain degree of toughness, it is easy to have problems with incomplete cutting. If the cutting blade is replaced, the cost is high.

[0004] Therefore, it is necessary to propose a cutting device for plastic film production to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a cutting device for the production of plastic film, in order to solve the problems in the prior art where the blade tip easily becomes dull with continuous use, and the plastic film itself has a certain toughness, making it easy to fail to cut, and replacing the blade is costly.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cutting device for plastic film production, comprising:

[0007] Support frame;

[0008] A cutting blade, which is telescopically connected to the top of the support frame;

[0009] A receiving plate, which is disposed below the cutter, is used to receive plastic film;

[0010] The cutter has a first roller and a second roller mounted on one side that rotate up and down, and the plastic film passes between the first roller and the second roller.

[0011] The first roller has multiple protruding holes on its outer side, and each of the protruding holes is equipped with spikes that can extend and retract.

[0012] Preferably, an electric push rod is fixed inside the first roller, and a push plate is fixed to one end of the electric push rod, with the spike fixed to the push plate;

[0013] The first roller has an internal telescopic groove for the push plate to slide.

[0014] Preferably, an electric heating element and a power source are fixed inside the first roller, and the electric heating element is distributed along the length of the first roller;

[0015] The power supply is connected to the electric heating element and the electric push rod.

[0016] Preferably, a cylinder is fixedly connected to the top of the support frame, and a telescopic end is provided at the bottom of the cylinder. The telescopic end extends into the support frame, and the cutter is fixedly connected to the bottom of the extended end.

[0017] Preferably, the top of the receiving plate has a cutting groove corresponding to the bottom of the cutter.

[0018] Preferably, two motors are fixed on one side of the support frame, and the drive shafts of the two motors are respectively connected to one end of the first roller and the second roller.

[0019] Preferably, the top of the cutter is connected to two sliding rods, and the top of the support frame is provided with a sliding hole for the sliding rods to pass through.

[0020] The technical effects and advantages of this utility model are as follows:

[0021] 1. In the actual operation of this utility model, when the electric push rod drives the spike to extend out of the first roller, it can penetrate the surface of the plastic film and pre-make holes for the distribution to be cut. After the holes are made, the cutter is used to cut the holes, which can further improve the accuracy and efficiency of cutting and reduce the phenomenon of sticking and not stopping when cutting the plastic film.

[0022] 2. An electric heating tube and a power supply are fixed inside the first roller. The electric heating tube is distributed along the length of the first roller. The electric heating tube is used to heat the first roller, thereby softening the plastic film passing through the first roller, reducing the hardness and brittleness of the film, reducing burrs and fragments generated during cutting, improving cutting quality, making the edges of the cut film smoother and neater, and improving the appearance quality of the product.

[0023] 3. The entire cutting process is automated. From film conveying and fixing to cutting, everything can be accomplished through the coordinated action of components such as motors and cylinders, greatly reducing the tediousness and labor intensity of manual operation and improving production efficiency.

[0024] 4. The conveying and guiding of the plastic film by the first and second rollers, as well as the fixing of the film by the spikes, can effectively prevent the film from shifting and wrinkling during the cutting process, making the cutting position more accurate and the cutting size more precise, thereby improving the quality and consistency of the product. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the cutting device for plastic film production according to this utility model from one perspective.

[0026] Figure 2 This is a schematic diagram of the cutting device for plastic film production according to this utility model from another perspective.

[0027] Figure 3 This is a schematic diagram of the internal structure of the first roller of this utility model.

[0028] In the diagram: 1. Support frame; 2. Motor; 3. Cylinder; 4. Cutter; 5. Receiving plate; 6. Cutting groove; 7. Electric heating element; 8. Sliding rod; 9. First roller; 10. Second roller; 11. Telescopic groove; 12. Electric push rod; 13. Push plate; 14. Power supply; 15. Spike. Detailed Implementation

[0029] This utility model provides, for example Figures 1-3 The cutting device shown includes a support frame 1, which serves as the basic structure of the entire device, bearing and fixing other components to ensure the overall stability and robustness of the device. It is usually made of high-strength steel or other materials.

[0030] Cutter 4 is telescopically connected to the top of the support frame 1;

[0031] The receiving plate 5 is located below the cutter 4 and is used to receive the plastic film. The cutter 4 is generally made of high-hardness alloy steel to ensure the sharpness and durability of the cut. Specifically, the top of the support frame 1 is fixedly connected to the cylinder 3, and the bottom of the cylinder 3 is provided with a telescopic end that extends into the support frame 1. The cutter 4 is fixedly connected to the bottom of the extended end. The top of the receiving plate 5 is provided with a cutting groove 6 that corresponds to the bottom of the cutter 4.

[0032] When the cutter 4 moves downward with the drive of the cylinder 3, the blade of the cutter 4 can accurately embed into the cutting groove 6, thereby achieving precise cutting of the plastic film on the receiving plate 5 and completing the cutting process.

[0033] The cutter 4 has a first roller 9 and a second roller 10 mounted on one side that rotate up and down, and the plastic film passes between the first roller 9 and the second roller 10.

[0034] Two motors 2 are fixed on one side of the support frame 1. The drive shafts of the two motors 2 are respectively connected to one end of the first roller 9 and the second roller 10, and the first roller 9 and the second roller 10 rotate relative to each other.

[0035] Two motors 2 are used to drive the rotation of the first roller 9 and the second roller 10, respectively, thereby driving the conveying of the plastic film. The speed and direction of the motors 2 can be adjusted according to the cutting requirements to achieve different cutting speeds and directions.

[0036] The first roller 9 has multiple protruding holes on its outer side, and each of the protruding holes has a telescopic spike 15 inside. An electric push rod 12 is fixed inside the first roller 9, and a push plate 13 is fixed to one end of the electric push rod 12. The spikes 15 are fixed to the push plate 13. The first roller 9 has a telescopic groove 11 for the push plate 13 to slide inside, and the power supply 14 is connected to the electric heating tube 7 and the electric push rod 12.

[0037] In the actual operation of this utility model, when the electric push rod 12 drives the spike 15 to extend out of the first roller 9, it can pierce the surface of the plastic film and pre-make holes for the distribution to be cut. After the holes are made, the cutter 4 is used to cut the holes, which can further improve the accuracy and efficiency of cutting and reduce the phenomenon of sticking during plastic film cutting.

[0038] An electric heating element 7 and a power supply 14 are fixed inside the first roller 9. The electric heating element 7 is distributed along the length of the first roller 9 and is used to heat the first roller 9, thereby softening the plastic film passing through the first roller 9, reducing the film's hardness and brittleness, reducing burrs and fragments generated during cutting, and improving cutting quality. The power supply 14 provides power to the electric heating element 7 and the electric push rod 12 to ensure the normal operation of the device.

[0039] The top of the cutter 4 is connected to two sliding rods 8. The top of the support frame 1 is provided with a sliding hole for the sliding rods 8 to pass through. The sliding rods 8 slide in the sliding hole, which can limit the movement trajectory of the cutter 4, so that it always maintains vertical movement during the cutting process, thereby improving the stability and accuracy of the cutting.

Claims

1. A cutting device for plastic film production, characterized in that: include: Support frame (1); The cutter (4) is telescopically connected to the top of the support frame (1); The receiving plate (5) is located below the cutter (4) and is used to receive plastic film; The cutter (4) is provided with a first roller (9) and a second roller (10) that rotate up and down on one side, and the plastic film passes between the first roller (9) and the second roller (10). The first roller (9) has multiple protrusion holes on its outer side, and each of the multiple protrusion holes is provided with a spike (15) that can be extended or retracted.

2. The cutting device for plastic film production according to claim 1, characterized in that: An electric push rod (12) is fixed inside the first roller (9), and a push plate (13) is fixed at one end of the electric push rod (12). The spike (15) is fixed on the push plate (13). The first roller (9) has an extension groove (11) inside for the push plate (13) to slide.

3. A cutting device for plastic film production according to claim 2, characterized in that: An electric heating tube (7) and a power supply (14) are fixed inside the first roller (9), and the electric heating tube (7) is distributed along the length of the first roller (9); The power supply (14) is connected to the electric heating tube (7) and the electric push rod (12).

4. A cutting device for plastic film production according to claim 1, characterized in that: A cylinder (3) is fixedly connected to the top of the support frame (1), and a telescopic end is provided at the bottom of the cylinder (3). The telescopic end extends into the support frame (1), and the cutter (4) is fixedly connected to the bottom of the extended end.

5. A cutting device for plastic film production according to claim 1, characterized in that: The top of the receiving plate (5) is provided with a cutting groove (6) corresponding to the bottom of the cutter (4).

6. A cutting device for plastic film production according to claim 1, characterized in that: Two motors (2) are fixed on one side of the support frame (1), and the drive shafts of the two motors (2) are respectively connected to one end of the first roller (9) and the second roller (10).

7. A cutting device for plastic film production according to claim 1, characterized in that: The top of the cutter (4) is connected to two sliding rods (8), and the top of the support frame (1) is provided with a sliding hole for the sliding rods (8) to pass through.

Images