Energy-saving film processing device for plastic bag production

Abstract

According to the technical scheme, the energy-saving thin film processing device for plastic bag production comprises a bottom plate, a liftable supporting plate is arranged at the top of the bottom plate, two moving blocks which synchronously move in opposite directions are arranged in the supporting plate, and the two moving blocks are arranged on the bottom plate. Limiting plates slidably connected with the supporting plates are slidably arranged at the two ends of the moving blocks, fixed blocks are arranged on the upper portions of the limiting plates, working boxes are slidably arranged between every two fixed blocks, and cutting blades capable of horizontally moving and ascending and descending are arranged on the opposite sides of the two working boxes; the side, close to the working box, of the cutting blade and the side faces of the two fixing blocks on the working box are located on the same plane. The four corners of the film are pressed and fixed through the four fixing blocks, cutting is conducted along the fixing blocks through the cutting blades, the situation that the edges of the film are cut irregularly by the cutting blades due to the fact that the film shrinks and shakes is avoided, the cutting effect is improved, and then it is guaranteed that the film can be stably machined.

Description

Technical Field

[0001] This utility model relates to the field of plastic film technology, specifically to an energy-saving film processing device for plastic bag production. Background Technology

[0002] Plastic film is a film made of polyvinyl chloride, polyethylene, polypropylene, polystyrene, and other resins, used for packaging and as a coating layer. Plastic packaging and plastic packaging products are gaining an increasingly larger market share, especially composite plastic flexible packaging, which is widely used in the food, pharmaceutical, and chemical industries. Food packaging accounts for the largest proportion, including beverage packaging, frozen food packaging, retortable food packaging, and fast food packaging. These products have brought great convenience to people's lives.

[0003] However, because the film is relatively soft and has a certain degree of elasticity, the edges are prone to shrinkage and vibration, which causes the cutting blade to cut the edges of the film unevenly, or even fail to completely remove the corners. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an energy-saving film processing device for plastic bag production.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] An energy-saving film processing device for plastic bag production includes a base plate, a liftable support plate on the top of the base plate, two synchronously reversible moving blocks inside the support plate, limiting plates slidably connected to the support plate at both ends of each moving block, a fixing block on the upper part of the limiting plate, and a work box slidably arranged between each pair of fixing blocks. A horizontally movable and liftable cutting blade is arranged on the opposite side of the two work boxes.

[0007] Preferably, the side of the cutting blade closest to the work box is on the same plane as the sides of the two fixing blocks on the work box.

[0008] Preferably, when the cutting blade moves horizontally to the point where it can no longer move, one end of it is aligned with one end of each of the two fixed blocks on the same side of the two work boxes.

[0009] Preferably, two fixing blocks on one of the working boxes are fixedly connected to the limiting plate by a cylinder, and two fixing blocks on the other working box are fixedly connected to the limiting plate by a connecting plate.

[0010] Preferably, the two ends of the movable block are slidably connected to the limiting plate via connecting rods with T-shaped ends, and the limiting plate is provided with T-shaped grooves for the connecting rods to slide.

[0011] Preferably, both ends of the working box are provided with protrusions for blocking the fixing blocks.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This invention uses four fixing blocks to press and secure the four corners of the film, and the cutting blade cuts along the fixing blocks. This avoids uneven cutting of the film edges caused by film shrinkage and vibration, thereby improving the cutting effect and ensuring stable film processing. Attached Figure Description

[0014] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0016] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0017] Figure 3 This is a schematic diagram of the servo motor of this utility model;

[0018] Figure 4 This is a schematic diagram of the drive motor of this utility model.

[0019] The diagram shows: 1. Base plate; 2. Support plate; 3. Limiting plate; 4. Servo motor.

[0020] 5. Cylinder 1; 6. Fixed block; 7. Working box; 8. Drive motor; 9. Double-acting lead screw; 10. Moving block;

[0021] 11. Connecting rod; 12. Threaded rod; 13. Threaded block; 14. Cylinder II; 15. Cutting blade. Detailed Implementation

[0022] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0023] like Figure 1As shown, this utility model discloses an energy-saving film processing device for plastic bag production, comprising a base plate 1. A cylinder is mounted on the top of the base plate 1, and a support plate 2 is mounted on the output end of the cylinder. A servo motor 4 is mounted on one side of the support plate 2. A bidirectional lead screw 9 located inside the support plate 2 is driven at the output end of the servo motor 4. Moving blocks 10 are symmetrically threaded on the bidirectional lead screw 9. Connecting rods 11 are fixed at both ends of the moving blocks 10. The ends of the connecting rods 11 are provided with T-shaped structures. Four limiting plates 3 are slidably mounted on the side of the base plate 1. T-shaped grooves are opened on the upper and lower sides of the limiting plates 3. The connecting rods 11 and the limiting plates 3 are slidably connected through the T-shaped ends and the T-shaped grooves. The stability of the limiting plates 3 is ensured by the connecting rods 11 at the T-shaped ends and the limiting plates 3 with T-shaped grooves. The servo motor 4 drives the bidirectional lead screw 9 to rotate, thereby driving the two moving blocks 10 to move synchronously in opposite directions on the bidirectional lead screw 9, which in turn drives the limiting plates 3 to move. The movement of the limiting plates 3 drives the fixed blocks 6 to move, thereby pressing and consolidating films of different lengths.

[0024] like Figure 3 As shown, cylinders 5 are fixed to the upper parts of the two limiting plates 3 on one side of the bidirectional lead screw 9, and a fixing block 6 is provided at the output end of cylinder 5. Cylinders 5 are fixed to the upper parts of the two limiting plates 3 on the other side of the bidirectional lead screw 9 via connecting plates. A working box 7 is slidably installed in the two fixing blocks 6 on both sides of the bidirectional lead screw 9, and both ends of the working box 7 are provided with protrusions to block the fixing blocks 6, ensuring that the fixing blocks 6 will not detach from the working box 7. A drive motor 8 is provided on one side of the working box 7, and a threaded rod 12 located in the working box 7 is driven at the output end of the drive motor 8. Figure 4 As shown, a threaded block 13 is threaded onto the threaded rod 12. The threaded block 13 passes through the working box 7 and is slidably connected to the working box 7. A cylinder 14 is mounted on the threaded block 13. A cutting blade 15 is mounted on the output end of the cylinder 14. The operation of the cylinder 14 drives the cutting blade 15 to descend. At the same time, the operation of the drive motor 8 drives the threaded rod 12 to rotate, thereby causing the threaded block 13 to move on the threaded rod 12. The movement of the threaded block 13 drives the cutting blade 15 to move, thereby cutting the film.

[0025] like Figure 3 As shown, two cutting blades 15 are positioned on opposite sides of the two work boxes 7. The cutting blades 15 can cut under the stable pressure of the fixing blocks 6, which is beneficial for stable cutting. The side of the cutting blade 15 closest to the work box 7 is on the same plane as the side of the two fixing blocks 6 on the work box 7. When the cutting blade 15 moves horizontally to the point where it can no longer move, one end is on the same straight line as one end of the two fixing blocks 6 on the same side of the two work boxes 7, ensuring that the cutting blade 15 can cut along the fixing blocks 6 and accurately cut to the required size.

[0026] When using, such as Figure 2As shown, the cylinder operates, causing the support plate 2 to descend and lay the film on the top surface of the support plate 2. The servo motor 4 drives the fixed block 6 to move, thus setting the maximum length between the two fixed blocks 6 on the same side of the bidirectional lead screw 9 to the required length. The cylinder 5 adjusts the maximum length between the fixed blocks 6 on both sides of the bidirectional lead screw 9 to the required width. Figure 1 As shown, the cylinder drives the support plate 2 to rise until the fixing block 6 presses the film. The cylinder 14 drives the cutting blade 15 to descend to the film surface. At the same time, the drive motor 8 drives the cutting blade 15 to move horizontally to cut the film. Finally, the cutting blade cuts the film along the width.

[0027] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. An energy-saving film processing device for plastic bag production, characterized in that: Includes a base plate (1), the top of which is provided with a liftable support plate (2), and two synchronously opposite moving blocks (10) are provided inside the support plate (2). Both ends of the moving blocks (10) are slidably provided with limiting plates (3) that are slidably connected to the support plate (2). The upper part of the limiting plate (3) is provided with a fixing block (6), and a work box (7) is slidably provided between each pair of fixing blocks (6). A horizontally movable and liftable cutting blade (15) is provided on the opposite side of the two work boxes (7).

2. The energy-saving film processing device for plastic bag production according to claim 1, characterized in that: The side of the cutting blade (15) near the work box (7) is on the same plane as the sides of the two fixing blocks (6) on the work box (7).

3. The energy-saving film processing device for plastic bag production according to claim 2, characterized in that: When the cutting blade (15) moves horizontally to the point where it can no longer move, one end of it is in the same straight line as one end of the two fixed blocks (6) on the same side of the two work boxes (7).

4. The energy-saving film processing device for plastic bag production according to claim 1, characterized in that: Two fixing blocks (6) on one of the work boxes (7) are fixedly connected to the limiting plate (3) by a cylinder (5), and two fixing blocks (6) on the other work box (7) are fixedly connected to the limiting plate (3) by a connecting plate.

5. The energy-saving film processing device for plastic bag production according to claim 1, characterized in that: The two ends of the movable block (10) are slidably connected to the limiting plate (3) through connecting rods (11) with T-shaped ends, and the limiting plate (3) is provided with T-shaped grooves for the connecting rods (11) to slide.

6. The energy-saving film processing device for plastic bag production according to claim 5, characterized in that: Both ends of the work box (7) are provided with protrusions for blocking the fixing block (6).

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