Hot cutting device for packaging bag film

Abstract

The utility model discloses a hot cutting device for a packaging bag film, and relates to the field of plastic processing. The device comprises a supporting body, a heating and cutting assembly is slidably connected into the supporting body and internally comprises an electric heat source, a heat transfer block, a cutting knife piece and a hot pressing plate, the electric heat source is movably clamped to the top end of the heat transfer block, the hot pressing plate is fixedly connected to the bottom end of the heat transfer block, and the cutting knife piece is slidably connected into the heating and cutting assembly. According to the device, the heating system is arranged on the cutter piece, so that the device can transfer heat to the cutting cutter piece and the hot pressing plate through the electric heating source and the heat transfer block, the number of heating devices is reduced while the cutting cutter piece and the hot pressing plate are heated, the machining cost is saved, and meanwhile the contact time of the heating devices and a plastic film is shortened; and deformation caused by high temperature is avoided while the temperature is increased, and finally poor product quality is avoided.

Description

Technical Field

[0001] This utility model relates to the field of plastic processing technology, specifically to a heat-cutting device for packaging bag films. Background Technology

[0002] Thermal cutting equipment plays a crucial role in the production of packaging film, and is widely used for thermal cutting of materials such as plastics, rubber, fibers, and leather. The working principle of thermal cutting equipment is primarily based on the effect of heat energy. During operation, the equipment heats the packaging film to be cut to near its melting point using heating components, making the material soft and easy to cut. Subsequently, the cutting blade, driven by the transmission system, cuts the heated film, thus achieving the thermal cutting process.

[0003] Existing hot cutting devices typically have a heating system installed in front of the cutter head. The material to be processed is first heated by the heating system and then cut by the heated cutter head. However, due to the poor heat resistance of plastic film, it not only becomes soft under high temperature conditions but also deforms, causing changes in size. This results in poor final product quality and the occurrence of defective products. Furthermore, some hot cutting devices have an additional heating system installed above the cutter head to heat the cutter head, which increases costs. In view of the above, this utility model provides a hot cutting device for packaging bag film to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a heat-cutting device for packaging bag films. It solves the problem that plastic films have poor heat resistance, and under high-temperature conditions, they not only become soft but also deform, causing changes in size, resulting in poor final product quality and the occurrence of unqualified products. Furthermore, some heat-cutting devices require an additional heating system above the cutting head to heat the cutting head, which increases costs.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a heat-cutting device for packaging bag film, comprising a supporting body, wherein a heating and cutting assembly is slidably connected within the supporting body, the heating and cutting assembly comprising an electric heat source, a heat transfer block, a cutting blade and a hot pressing plate, wherein the electric heat source is movably engaged at the top of the heat transfer block, the hot pressing plate is fixedly connected to the bottom of the heat transfer block, and the cutting blade is slidably connected within the heating and cutting assembly.

[0006] Preferably, the support body includes a support arm, a cylinder seat, and a base. The cylinder seat is fixedly connected to the top end of the support arm, the base is fixedly connected to the bottom end of the support arm, and the heating and cutting assembly is slidably connected inside the support arm.

[0007] Preferably, a rotating roller is rotatably connected inside the base, a rotating motor is fixedly connected to one end of the base, and the rotating roller is fixedly connected to the power output end of the rotating motor.

[0008] Preferably, a sliding block is fixedly connected to the outside of the heating and cutting assembly, and a cylinder is fixedly connected to the inside of the sliding block, with the cylinder fixedly connected to a cylinder seat.

[0009] Preferably, the heating and cutting assembly has a through hole, a first chamber and a second chamber, the cutting blade is slidably connected in the second chamber and the heat transfer block is fixedly connected in the first chamber.

[0010] Preferably, short sliders are fixedly connected to both ends of the cutting blade, a magnetic block is fixedly connected to the top of the short slider, a spring is fixedly connected to the bottom of the short slider, and the other end of the spring is fixedly connected to the bottom of the second chamber.

[0011] Preferably, a magnetic short column is fixedly connected to the bottom end of the cylinder seat, and the magnetic short column is slidably connected in the through hole.

[0012] This utility model discloses a heat-cutting device for packaging bag films, which has the following advantages: This heat-cutting device for packaging bag films, by setting the heating system on the cutting blade, enables the device to transfer heat to the cutting blade and the hot pressing plate through the electric heat source and heat transfer block. This reduces the number of heating devices while heating both, saving processing costs. At the same time, it reduces the contact time between the heating device and the plastic film, so that the film will not deform due to high temperature while heating up, ultimately resulting in poor product quality. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0014] Figure 1 This is a schematic diagram of the overall front structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the overall side structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the overall structure of the heating and cutting assembly of this utility model;

[0017] Figure 4 This is a schematic diagram of the exploded structure of the heating and cutting assembly of this utility model;

[0018] Figure 5 This is a schematic cross-sectional view of the heating and cutting assembly of this utility model;

[0019] Figure 6 This is a partial cross-sectional structural diagram of the present invention.

[0020] In the diagram: 1. Support body; 11. Support arm; 111. Magnetic short column; 12. Cylinder seat; 13. Base; 14. Rotating roller; 15. Rotating motor; 2. Heating and cutting assembly; 21. Sliding block; 22. Electric heat source; 23. Heat transfer block; 24. Cutting blade; 241. Short slider; 242. Magnetic block; 243. Spring; 25. Hot press plate; 26. Through hole; 27. First chamber; 28. Second chamber; 3. Cylinder. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] This application provides a heat-cutting device for packaging bag films, which solves the problem that plastic films have poor heat resistance, and under high temperature conditions, they not only become soft but also deform, resulting in changes in size, leading to poor final product quality and the appearance of unqualified products. Furthermore, some heat-cutting devices require an additional heating system above the cutting head to heat the cutting head, which increases costs.

[0023] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0024] This utility model discloses a heat-cutting device for packaging bag films.

[0025] According to the appendix Figure 1-6 As shown,

[0026] The device includes a support body 1, within which a heating and cutting assembly 2 is slidably connected. The heating and cutting assembly 2 includes an electric heat source 22, a heat transfer block 23, a cutting blade 24, and a hot press plate 25. The electric heat source 22 is movably engaged at the top of the heat transfer block 23, and the hot press plate 25 is fixedly connected to the bottom of the heat transfer block 23. The cutting blade 24 is slidably connected within the heating and cutting assembly 2. When the packaging bag film is pressed down, the hot press plate 25 contacts and heats it first. Then, the cutting blade 24 slides down and performs hot cutting to complete the hot cutting work. Due to the short contact time, the plastic film will not be melted and deformed by heat.

[0027] The support body 1 includes a support arm 11, a cylinder seat 12, and a base 13. The cylinder seat 12 is fixedly connected to the top end of the support arm 11, and the base 13 is fixedly connected to the bottom end of the support arm 11. The heating and cutting assembly 2 is slidably connected inside the support arm 11. A rotating roller 14 is rotatably connected inside the base 13. A rotating motor 15 is fixedly connected to one end of the base 13. The rotating roller 14 is fixedly connected to the power output end of the rotating motor 15. The support body 1 is used for support.

[0028] A sliding block 21 is fixedly connected to the outside of the heating and cutting assembly 2. A cylinder 3 is fixedly connected inside the sliding block 21. The cylinder 3 is fixedly connected inside the cylinder seat 12. The heating and cutting assembly 2 has a through hole 26, a first chamber 27 and a second chamber 28. The cutting blade 24 is slidably connected inside the second chamber 28. The heat transfer block 23 is fixedly connected inside the first chamber 27. The cylinder 3 provides power to the device. The first chamber 27 is responsible for fixing the heat transfer block 23. The second chamber 28 is responsible for providing a sliding cavity for the cutting blade 24 and heating it under the heating of the heat transfer block 23.

[0029] The cutting blade 24 is fixedly connected to both ends of a short slider 241. A magnetic block 242 is fixedly connected to the top of the short slider 241. A spring 243 is fixedly connected to the bottom of the short slider 241. The other end of the spring 243 is fixedly connected to the bottom of the second chamber 28. A magnetic short column 111 is fixedly connected to the bottom of the cylinder seat 12. The magnetic short column 111 is slidably connected in the through hole 26. When the heating and cutting assembly 2 is pressed down, the cutting blade 24 pulled by the spring 243 will be delayed until the hot press plate 25 has heated the plastic film before it falls to perform hot cutting. When the heating and cutting assembly 2 is reset, the cutting blade 24 is held in place by the magnetic attraction of the magnetic block 242 and the magnetic short column 111.

[0030] In summary, compared with existing technologies, it has the following beneficial effects:

[0031] This heat-cutting device for packaging bag films, by setting the heating system on the cutting blade, allows the device to transfer heat to the cutting blade 24 and the hot pressing plate 25 through the electric heat source 22 and the heat transfer block 23. This reduces the number of heating devices while heating both, saving processing costs. At the same time, it reduces the contact time between the heating device and the plastic film, so that the film will not deform due to high temperature while heating up, ultimately resulting in poor product quality.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A heat-cutting device for packaging bag films, comprising a support body (1), characterized in that, A heating and cutting assembly (2) is slidably connected inside the support body (1); The heating and cutting assembly (2) includes an electric heat source (22), a heat transfer block (23), a cutting blade (24), and a hot press plate (25). The electric heat source (22) is movably snapped onto the top of the heat transfer block (23), the hot press plate (25) is fixedly connected to the bottom of the heat transfer block (23), and the cutting blade (24) is slidably connected inside the heating and cutting assembly (2).

2. The heat-cutting device for packaging bag film according to claim 1, characterized in that: The support body (1) includes a support arm (11), a cylinder seat (12), and a base (13). The cylinder seat (12) is fixedly connected to the top of the support arm (11), the base (13) is fixedly connected to the bottom of the support arm (11), and the heating and cutting assembly (2) is slidably connected inside the support arm (11).

3. The heat-cutting device for packaging bag film according to claim 2, characterized in that: A rotating roller (14) is rotatably connected inside the base (13), and a rotating motor (15) is fixedly connected to one end of the base (13). The rotating roller (14) is fixedly connected to the power output end of the rotating motor (15).

4. The heat-cutting device for packaging bag film according to claim 2, characterized in that: The heating and cutting assembly (2) is externally fixedly connected to a sliding block (21), and a cylinder (3) is internally fixedly connected to the sliding block (21). The cylinder (3) is fixedly connected to the cylinder seat (12).

5. The heat-cutting device for packaging bag film according to claim 1, characterized in that: The heating and cutting assembly (2) has a through hole (26), a first chamber (27), and a second chamber (28). The cutting blade (24) is slidably connected in the second chamber (28), and the heat transfer block (23) is fixedly connected in the first chamber (27).

6. A heat-cutting device for packaging bag film according to claim 5, characterized in that: The cutting blade (24) is fixedly connected to two short sliders (241) at both ends. A magnetic block (242) is fixedly connected to the top of the short slider (241). A spring (243) is fixedly connected to the bottom of the short slider (241). The other end of the spring (243) is fixedly connected to the bottom of the second chamber (28).

7. A heat-cutting device for packaging bag film according to claim 4, characterized in that: The bottom end of the cylinder seat (12) is fixedly connected to a magnetic short column (111), which is slidably connected in the through hole (26).

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