A cutting device for plastic film production

Abstract

This utility model discloses a cutting device for plastic film production, including a base plate. A fixed frame is fixedly connected to the surface of the base plate, and an upper blade holder is slidably connected to the side wall of the fixed frame. A dynamic hot-cutting blade is detachably connected to the lower surface of the upper blade holder. A cylinder is also fixedly connected to the side wall of the fixed frame, and the movable end of the cylinder is fixedly connected to the upper surface of the upper blade holder. The surface of the cylinder is provided with a first connecting nozzle and a second connecting nozzle for air intake and exhaust, both of which are connected to an external air source. A lower blade holder is fixedly connected to the surface of the base plate, and a fixed hot-cutting blade is detachably connected to the inner side wall of the lower blade holder. A guide groove is fixedly connected to the surface of the base plate. This utility model uses a cylinder to drive the upper blade holder, which in turn drives the dynamic hot-cutting blade to cooperate with the fixed hot-cutting blade to achieve rapid cutting. The heating wire heats the hot-cutting blade, causing the cut edge of the plastic film to melt, effectively preventing burrs, ensuring neat and precise cutting edges, and improving product quality.

Description

Technical Field

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

[0002] In the plastic film manufacturing industry, cutting the plastic film is a crucial step in the production process. Traditional plastic film cutting equipment typically uses cold cutting, which easily leads to problems such as burrs and tears during the cutting process, severely affecting product quality and appearance, reducing market competitiveness. Moreover, traditional cutting equipment has a limited slitting function, making it difficult to meet diverse production needs and unable to flexibly slit the plastic film. Therefore, those skilled in the art have provided a cutting device for plastic film production to solve the problems mentioned in the background art. Utility Model Content

[0003] The purpose of this invention is to provide a cutting device for plastic film production to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A cutting device for producing plastic film includes a base plate. A fixed frame is fixedly connected to the surface of the base plate. An upper blade holder is slidably connected to the side wall of the fixed frame. A dynamic hot-cutting blade is detachably connected to the lower surface of the upper blade holder. A cylinder is also fixedly connected to the side wall of the fixed frame. The movable end of the cylinder is fixedly connected to the upper surface of the upper blade holder. The surface of the cylinder is provided with a first connecting nozzle and a second connecting nozzle for air intake and exhaust. Both the first connecting nozzle and the second connecting nozzle are connected to an external air source. A lower blade holder is fixedly connected to the surface of the base plate. A fixed hot-cutting blade is detachably connected to the inner side wall of the lower blade holder. A guide groove is fixedly connected to the surface of the base plate and is located on one side of the fixed hot-cutting blade.

[0006] Furthermore, both the upper and lower blade holders are equipped with heating wires for heating the hot-cutting blades, which extend outside the blade holders and are electrically connected to an external power source.

[0007] Furthermore, a fixed plate is fixedly connected to the surface of the base plate, and an auxiliary pressure roller and a transmission roller are rotatably connected between the fixed plates. A damping rotating shaft is also rotatably connected between the base plates, and the damping rotating shaft is located between the auxiliary pressure roller and the transmission roller.

[0008] Furthermore, the surface of the damping shaft is slidably connected to a tool holder, and the surface of the tool holder is also fixedly connected to a handle for moving itself.

[0009] Furthermore, the blade holder surface is provided with a mounting groove for mounting the blade, and a slitting blade is detachably connected to the inner side wall of the mounting groove, with the tip of the slitting blade abutting against the surface of the base plate.

[0010] Furthermore, a first bevel gear is rotatably connected to the side wall of the fixed plate, and one end of the first bevel gear is fixedly connected to the end of the transmission roller shaft.

[0011] Furthermore, a drive motor is fixedly connected to the side wall of the fixed plate, and a second bevel gear is fixedly connected to the power output end of the drive motor. The second bevel gear meshes with the first bevel gear.

[0012] By adopting the above technical solution

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The cylinder drives the upper blade holder to move the moving hot cutting blade and the fixed hot cutting blade together to achieve rapid cutting. The heating wire heats the hot cutting blade, causing the plastic film cut to melt, effectively preventing burrs and ensuring neat and precise cutting edges, thus improving product quality.

[0015] 2. The blade holder and slitting blade on the damping shaft can be adjusted in position and angle by rotating the handle, enabling flexible slitting of plastic film to meet the slitting requirements of different specifications and shapes, thus increasing the applicability of the device. Attached Figure Description

[0016] Figure 1 A schematic diagram of the overall structure of a cutting device for producing plastic film;

[0017] Figure 2 A side view of the initial slitting point in a cutting device for plastic film production;

[0018] Figure 3 This is a schematic diagram of the secondary cutting section in a cutting device for plastic film production.

[0019] Figure 4 In a cutting device for producing plastic film Figure 3 Top view.

[0020] In the diagram: 1. Base plate; 2. Fixing frame; 3. Upper blade holder; 4. Cylinder; 5. First connecting air nozzle; 6. Second connecting air nozzle; 7. Dynamic hot cutting blade; 8. Lower blade holder; 9. Fixed hot cutting blade; 10. Heating wire; 11. Guide chute; 12. Fixing plate; 13. Auxiliary pressure roller; 14. Transmission roller; 15. Damping shaft; 16. Blade holder; 17. Mounting slot; 18. Slitting blade; 19. First bevel gear; 20. Drive motor; 21. Second bevel gear. Detailed Implementation

[0021] To make the technical means, creative features, achieved objectives and effects of this utility model easier to understand, the present utility model is further described below in conjunction with specific embodiments. In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0022] Please see Figures 1-4 This utility model provides an embodiment of a cutting device for plastic film production, including a base plate 1, a fixed frame 2 fixedly connected to the surface of the base plate 1, an upper blade holder 3 slidably connected to the side wall of the fixed frame 2, a movable hot-cutting blade 7 detachably connected to the lower surface of the upper blade holder 3, a cylinder 4 fixedly connected to the side wall of the fixed frame 2, the movable end of the cylinder 4 being fixedly connected to the upper surface of the upper blade holder 3, and the surface of the cylinder 4 being provided with a first connecting nozzle 5 and a second connecting nozzle 6 for air intake and exhaust, both of which are connected to an external air source. A lower blade holder 8 is fixedly connected to the surface of the base plate 1, a fixed hot-cutting blade 9 is detachably connected to the inner side wall of the lower blade holder 8, and a guide groove 11 is fixedly connected to the surface of the base plate 1, located on one side of the fixed hot-cutting blade 9. Both the upper blade holder 3 and the lower blade holder 8 are provided with heating wires 10 for heating the hot-cutting blades, the heating wires 10 extending outside the blade holder and electrically connected to an external power source. When this cutting device for plastic film production is in operation... An external air source supplies air to the cylinder 4 through the first connecting nozzle 5 and the second connecting nozzle 6. The movable end of the cylinder 4 drives the upper blade holder 3 to slide up and down on the side wall of the fixed frame 2. When the upper blade holder 3 moves downward, the moving hot cutting blade 7 cooperates with the fixed hot cutting blade 9 on the inner side wall of the lower blade holder 8 to achieve hot cutting of the plastic film. The heating wire 10 installed inside the upper blade holder 3 and the lower blade holder 8 is electrically connected to an external power source. After being energized, it heats the hot cutting blade to ensure that the cut edge of the plastic film is heated and melted during the cutting process, preventing burrs and ensuring cutting quality. The guide groove 11 is located on one side of the fixed hot cutting blade 9 and is used to guide the cut plastic film to be output smoothly, avoiding accumulation or deviation. The cylinder 4 drives the upper blade holder 3 to drive the moving hot cutting blade 7 to cooperate with the fixed hot cutting blade 9 to achieve rapid cutting. The heating wire 10 heats the hot cutting blade, causing the cut edge of the plastic film to be heated and melted, effectively preventing burrs, ensuring neat cutting edges and high precision, and improving product quality.

[0023] In this embodiment, a fixed plate 12 is fixedly connected to the surface of the base plate 1. An auxiliary pressure roller 13 and a transmission roller 14 are rotatably connected between the fixed plates 12. A damping rotating shaft 15 is also rotatably connected between the base plates 1, located between the auxiliary pressure roller 13 and the transmission roller 14. A blade holder 16 is dampedly slidably connected to the surface of the damping rotating shaft 15. A handle for moving itself is fixedly connected to the surface of the blade holder 16. A mounting groove 17 for mounting blades is opened on the surface of the blade holder 16. A slitting blade 18 is detachably connected to the inner side wall of the mounting groove 17, and the tip of the slitting blade 18 abuts against the surface of the base plate 1. A first bevel gear 19 is rotatably connected to the side wall of the fixed plate 12. One end of the first bevel gear 19 is fixedly connected to the shaft end of the transmission roller 14. A drive motor 20 is fixedly connected to the side wall of the fixed plate 12. A second bevel gear 21 is fixedly connected to the power output end of the drive motor 20, and the second bevel gear 21 meshes with the first bevel gear 19. The plastic film is subsequently conveyed... During the process, the plastic film first passes through the auxiliary pressure roller 13 and the transmission roller 14, which are rotatably connected between the fixed plates 12. The auxiliary pressure roller 13 plays the role of assisting in conveying and pressing the plastic film. The transmission roller 14 rotates under the drive of the drive motor 20. The second bevel gear 21 at the power output end of the drive motor 20 meshes with the first bevel gear 19 at the shaft end of the transmission roller 14 to realize power transmission. The damping shaft 15 located between the auxiliary pressure roller 13 and the transmission roller 14 has a detachable blade holder 16 on its surface with a slitting blade 18. The tip of the slitting blade 18 abuts against the surface of the base plate 1, which can perform secondary slitting on the plastic film. By rotating the handle on the surface of the damping shaft 15, the position and angle of the slitting blade 18 can be adjusted to meet different slitting requirements. The blade holder 16 and the slitting blade 18 on the damping shaft 15 can be adjusted in position and angle by rotating the handle to realize flexible slitting of the plastic film, meet the slitting requirements of different specifications and shapes, and increase the applicability of the device.

[0024] When this plastic film production cutting device is in operation, an external air source supplies air to the cylinder 4 through the first connecting air nozzle 5 and the second connecting air nozzle 6. The movable end of the cylinder 4 drives the upper blade holder 3 to slide up and down on the side wall of the fixed frame 2. When the upper blade holder 3 moves downward, the moving hot cutting blade 7 cooperates with the fixed hot cutting blade 9 on the inner side wall of the lower blade holder 8 to achieve hot cutting of the plastic film. The heating wire 10 installed inside the upper blade holder 3 and the lower blade holder 8 is electrically connected to an external power source. After being energized, it heats the hot cutting blade to ensure that the cut edge of the plastic film is heated and melted during the cutting process, preventing burrs and ensuring cutting quality. The guide groove 11 is located on one side of the fixed hot cutting blade 9 and is used to guide the cut plastic film out smoothly, avoiding accumulation or deviation. During subsequent conveying, the film first passes through the auxiliary pressure roller 13 and the transmission roller 14 rotatably connected between the fixed plates 12. The auxiliary pressure roller 13 assists in conveying and pressing the plastic film. The transmission roller 14 rotates under the drive of the drive motor 20. The second bevel gear 21 at the power output end of the drive motor 20 meshes with the first bevel gear 19 at the shaft end of the transmission roller 14 to realize power transmission. The damping shaft 15 located between the auxiliary pressure roller 13 and the transmission roller 14 has a blade holder 16 on its surface that is detachably connected to a slitting blade 18. The tip of the slitting blade 18 abuts against the surface of the base plate 1, which can perform secondary slitting on the plastic film. By rotating the handle on the surface of the damping shaft 15, the position and angle of the slitting blade 18 can be adjusted to meet different slitting requirements.

[0025] The cylinder 4 drives the upper blade holder 3 to engage the moving hot cutting blade 7 with the fixed hot cutting blade 9 to achieve rapid cutting. The heating wire 10 heats the hot cutting blade, causing the cut edge of the plastic film to melt, effectively preventing burrs and ensuring neat and precise cutting edges, thus improving product quality. The blade holder 16 and the slitting blade 18 on the damping shaft 15 can be adjusted in position and angle by rotating the handle, enabling flexible slitting of the plastic film to meet the slitting requirements of different specifications and shapes, increasing the applicability of the device.

[0026] This specification describes embodiments, but not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A cutting device for plastic film production, characterized in that, The device includes a base plate (1), a fixed frame (2) is fixedly connected to the surface of the base plate (1), an upper blade holder (3) is slidably connected to the side wall of the fixed frame (2), a moving hot cutting blade (7) is detachably connected to the lower surface of the upper blade holder (3), a cylinder (4) is also fixedly connected to the side wall of the fixed frame (2), the movable end of the cylinder (4) is fixedly connected to the upper surface of the upper blade holder (3), the surface of the cylinder (4) is provided with a first connecting nozzle (5) and a second connecting nozzle (6) for air intake and exhaust, both of which are connected to an external air source, a lower blade holder (8) is fixedly connected to the surface of the base plate (1), a fixed hot cutting blade (9) is detachably connected to the inner side wall of the lower blade holder (8), and a guide groove (11) is fixedly connected to the surface of the base plate (1), the guide groove (11) is located on one side of the fixed hot cutting blade (9).

2. The cutting device for plastic film production according to claim 1, characterized in that, The upper blade holder (3) and the lower blade holder (8) are both equipped with heating wires (10) for heating the hot cutting blade. The heating wires (10) extend outside the blade holder and are electrically connected to an external power source.

3. The cutting device for plastic film production according to claim 1, characterized in that, A fixed plate (12) is fixedly connected to the surface of the base plate (1). An auxiliary pressure roller (13) and a transmission roller (14) are rotatably connected between the fixed plates (12). A damping rotating shaft (15) is also rotatably connected between the base plates (1). The damping rotating shaft (15) is located between the auxiliary pressure roller (13) and the transmission roller (14).

4. The cutting device for plastic film production according to claim 3, characterized in that, The damping shaft (15) has a damping sliding connection to a tool holder (16), and the tool holder (16) also has a handle for moving itself fixedly connected to its surface.

5. The cutting device for plastic film production according to claim 4, characterized in that, The blade holder (16) has a mounting groove (17) for mounting the blade. A slitting blade (18) is detachably connected to the inner side wall of the mounting groove (17), and the tip of the slitting blade (18) abuts against the surface of the base plate (1).

6. The cutting device for plastic film production according to claim 3, characterized in that, The side wall of the fixed plate (12) is rotatably connected to a first bevel gear (19), one end of which is fixedly connected to the shaft end of the transmission roller (14).

7. The cutting device for plastic film production according to claim 3, characterized in that, A drive motor (20) is fixedly connected to the side wall of the fixed plate (12), and a second bevel gear (21) is fixedly connected to the power output end of the drive motor (20). The second bevel gear (21) meshes with the first bevel gear (19).

Images