An adjustable plastic bag slitting machine

Abstract

This utility model provides an adjustable plastic bag slitting machine, including a mounting platform. A cutting structure is provided on one side of the mounting platform. The cutting structure includes a movable plate placed on one side of the mounting platform. A limiting groove is movably connected above the movable plate. A triangular limiting ring is provided inside the limiting groove. One side of the limiting ring is connected to a slide rail placed below the movable plate via a fixed rod. The side of the limiting ring away from the fixed rod has a corresponding sliding groove. By setting the limiting ring to rotate within the limiting groove, the unique triangle of the limiting ring causes the limiting groove to change position both longitudinally and laterally. As the limiting ring rotates, the movable plate moves on the sliding groove, and the limiting groove changes angle relative to the movable plate. Therefore, the cutting structure can perform repeated cutting motions on the mounting platform. The cutting distance and interval are related to the size of the limiting ring. Changing the size of the limiting ring and the limiting groove changes the size of the plastic bag to be cut.

Description

Technical Field

[0001] This utility model provides a slitting machine, belonging to the technical field of plastic bag production equipment, and particularly relates to an adjustable plastic bag slitting machine. Background Technology

[0002] A plastic bag is a bag made of plastic used for loading, transporting, and protecting various items. Plastic bags are typically made of polymer materials such as polyethylene and polypropylene, and are lightweight, durable, waterproof, and moisture-proof. Plastic bags are widely used in daily life, including shopping bags, garbage bags, and food bags. In the production process, large rolls of pre-made film are slit into smaller rolls of suitable size, then heat-sealed to form the final plastic bag.

[0003] Existing slitting devices for plastic bags use a descending cutting blade to cut the plastic film. However, plastic has extremely high ductility, and the cutting blade may not be able to complete the cut in one drop, affecting the overall slitting process and making it inconvenient to use. Moreover, when it is necessary to change the production batch or the size of the plastic bags being produced, adjustments cannot be made automatically. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, this application provides an adjustable plastic bag slitting machine, which solves the problems of incomplete cutting and inconvenience in changing the size of the plastic bags to be produced by the prior art slitting machine for plastic bags.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an adjustable plastic bag slitting machine, including a mounting platform, a cutting structure on one side of the mounting platform, the cutting structure including a movable plate placed on one side of the mounting platform, a limiting groove movably connected above the movable plate, a triangular limiting ring inside the limiting groove, a slide rail placed below the movable plate connected to one side of the limiting ring via a fixed rod, and a corresponding sliding groove on the side of the limiting ring away from the fixed rod.

[0006] Preferably, an arc-shaped swing arm is connected above the movable plate via a fixed shaft, through which the fixed shaft passes and is fixedly connected to the limiting slot. A cutting blade is fixedly connected to the side of the limiting slot near the movable plate. The movable plate has a through hole corresponding to the cutting blade. A T-shaped limiting plate placed in the slide rail is fixedly connected below the movable plate.

[0007] Preferably, the sliding groove and the movable plate are fixedly connected. The sliding groove is provided with a sliding component that passes through the limiting ring and is movably connected to the limiting ring. The limiting ring is provided with a drive shaft that passes through itself and the fixed rod at one end away from the sliding component. The other end of the drive shaft is connected to a drive motor.

[0008] Preferably, the three sides of the limiting ring are arc-shaped, the sliding member is installed on the side of the limiting ring, the driving shaft passes through one corner of the limiting ring, and the driving shaft and the sliding member are positioned opposite each other.

[0009] Preferably, the mounting platform is provided with a cutting groove corresponding to the cutting blade, a roller is connected to one end of the mounting platform, and the length of the movable plate is greater than that of the sliding groove.

[0010] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0011] This invention features a limiting ring that rotates within a limiting slot. Utilizing the unique triangular shape of the limiting ring, its rotation causes changes in the longitudinal and lateral positions of the limiting slot. Consequently, as the limiting ring rotates, a movable plate moves on a sliding groove, and the limiting slot changes angle relative to the movable plate. Therefore, the cutting structure can perform repeated cutting motions on the mounting platform. The cutting distance and intervals are related to the size of the limiting ring; changing the size of the limiting ring and the limiting slot alters the size of the plastic bag to be cut.

[0012] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0013] Figure 1 This is an overall assembly view of an adjustable plastic bag slitting machine according to the present invention;

[0014] Figure 2 This is an assembly view of the cutting structure of an adjustable plastic bag slitting machine according to the present invention.

[0015] Figure 3 This is a schematic diagram of the installation of the limiting ring of an adjustable plastic bag slitting machine according to the present invention;

[0016] Figure 4 This is an assembly view of the limiting plate portion of an adjustable plastic bag slitting machine according to this utility model.

[0017] As shown in the figure:

[0018] 1. Mounting platform;

[0019] 11. Cutting blade; 12. Cutting groove; 13. Roller;

[0020] 2. Cutting structure;

[0021] 21. Movable plate; 22. Limiting slot; 23. Limiting ring; 24. Fixing rod; 25. Slide rail; 26. Sliding groove; 27. Sliding component; 28. Drive shaft; 29. ​​Drive motor;

[0022] 211. Fixed shaft; 212. Swing arm; 213. Through hole; 214. Limiting plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] It should be noted that the terms "vertical," "horizontal," "up," "down," "left," "right," and similar expressions used in this article are for illustrative purposes only and do not represent the only possible implementation.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention; the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] like Figure 1 and Figure 2 As shown, an adjustable plastic bag slitting machine includes a mounting platform 1. The mounting platform 1 has a cutting structure 2 on one side. The cutting structure 2 includes a movable plate 21 placed on one side of the mounting platform 1. An arc-shaped swing arm 212, which is penetrated by the fixed shaft 211 and fixedly connected to a limiting slot 22, is connected above the movable plate 21 via a fixed shaft 211. A cutting blade 11 is fixedly connected to the side of the limiting slot 22 near the movable plate 21. The movable plate 21 has a through hole 213 corresponding to the cutting blade 11. The lower part of the movable plate 21... A T-shaped limiting plate 214 is fixedly connected within the slide rail 25. A limiting slot 22 is movably connected above the movable plate 21. A triangular limiting ring 23 is provided inside the limiting slot 22. One side of the limiting ring 23 is connected to the slide rail 25 located below the movable plate 21 via a fixing rod 24. The side of the limiting ring 23 facing away from the fixing rod 24 has a corresponding sliding groove 26. The mounting platform 1 has a cutting groove 12 corresponding to the cutting blade 11. A roller shaft 13 is connected to one end of the mounting platform 1. The length of the movable plate 21 is greater than the sliding groove 26.

[0027] In this embodiment, by setting a limiting ring 23 to rotate in the limiting slot 22, the unique triangle of the limiting ring 23 causes the limiting slot 22 to change position in both the longitudinal and lateral directions. As the limiting ring 23 rotates, the movable plate 21 moves on the sliding groove 26, and the limiting slot 22 changes angle based on the movable plate 21. Therefore, the cutting structure 2 can perform repeated cutting movements on the mounting table. The cutting distance and interval are related to the size of the limiting ring 23. By changing the size of the limiting ring 23 and the limiting slot 22, the size of the plastic bag to be cut can be changed.

[0028] like Figure 3 and Figure 4 As shown, the sliding groove 26 is fixedly connected to the movable plate 21. A sliding member 27 is provided inside the sliding groove 26, passing through and movably connecting to the limiting ring 23. A drive shaft 28 is provided at the end of the limiting ring 23 furthest from the sliding member 27. The drive shaft 28 passes through the limiting ring 23 and the fixing rod 24, and the other end of the drive shaft 28 is connected to the drive motor 29. Three sides of the limiting ring 23 are arc-shaped, and the sliding member 27 is mounted on the side of the limiting ring 23. The drive shaft 28 passes through one corner of the limiting ring 23, and the drive shaft 28 and the sliding member 27 are positioned opposite each other.

[0029] In this embodiment, the drive motor 29 drives the limiting ring 23 to rotate via the drive shaft 28. Since the drive shaft 28 passes through one corner of the limiting ring 23, the limiting ring 23 has a height difference when rotating. When the edge of the limiting ring 23 contacts the limiting slot 22, it drives the movable plate 21 to slide in the slide rail 25. At the same time, the cutting blade 11 is inserted into the through hole 213 and contacts the cutting groove 12. The sliding member 27 slides up and down in the sliding groove 26, which limits the rotation of the limiting ring 23. When the limiting ring 23 drives the sliding member 27 to make circular motion, it will move the movable plate 21, which is fixedly connected to the sliding groove 26, by using the limiting effect of the sliding groove 26 on the sliding member 27.

[0030] During use, confirm that the power connection of the slitting machine is normal, check whether the drive motor 29 is intact, check whether the cutting blade 11 is sharp, and ensure that all connecting parts (such as the fixed shaft 211, the limit slot 22, the sliding groove 26, etc.) are not loose; place the plastic film to be slitted on the roller shaft 13, ensuring that the film can be smoothly wound and fed into the slitting machine; rotate the limit ring 23, and adjust its position in the limit slot 22 by using the triangular design of the limit ring 23, changing the size and shape of the limit ring 23 to adjust the cutting blade 11. The cutting distance and interval are adjusted to ensure that the limiting ring 23 and the limiting slot 22 are properly fixed and connected, ensuring that the movable plate 21 can move smoothly in the sliding groove 26. The position of the cutting blade 11 is adjusted by the fixed shaft 211 on the movable plate 21 to align it with the cutting groove 12, ensuring that the cutting blade 11 can smoothly insert into the through hole 213 and complete the cutting action when the movable plate 21 slides. The power of the drive motor 29 is turned on, and the drive shaft 28 starts to rotate, driving the limiting ring 23 to rotate. Since the drive shaft 28 passes through the limiting ring 213, the cutting blade 11 can be smoothly inserted into the through hole 213 and complete the cutting action. At one corner of the slitting machine, the rotation of the limiting ring 23 causes a height difference, which in turn drives the movement of the limiting slot 22 and the movable plate 21. During the movement of the movable plate 21, the cutting blade 11 will repeatedly insert into the through hole 213 to complete the cutting action of the plastic bag. During the cutting process, observe the up and down sliding of the sliding member 27 in the sliding groove 26 to ensure that the sliding member 27 plays a limiting role in the rotation of the limiting ring 23, and confirm that the contact between the cutting blade 11 and the cutting groove 12 is smooth and the cutting action is stable. As needed, the size and shape of the limiting ring 23 and the limiting slot 22 can be adjusted to change the size of the plastic bag to be cut, and the length of the movable plate 21 and the position of the sliding groove 26 can be adjusted to adapt to the cutting needs of plastic bags of different sizes. After the cutting is completed, turn off the power of the drive motor 29, remove the cut plastic bag, check the cutting effect, and ensure that the plastic bag is cut neatly and sealed well. Regularly check the sharpness of the cutting blade 11, replace or sharpen it when necessary, clean the limiting slot 22, the sliding groove 26 and other components, and keep the slitting machine in good operating condition.

[0031] By following the steps above, this adjustable plastic bag cutter can be used efficiently and safely to cut plastic bags.

[0032] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the claims.

Claims

1. An adjustable plastic bag slitting machine, comprising a mounting platform (1), characterized in that: The mounting platform (1) has a cutting structure (2) on one side. The cutting structure (2) includes a movable plate (21) placed on one side of the mounting platform (1). A limiting slot (22) is movably connected above the movable plate (21). A triangular limiting ring (23) is provided inside the limiting slot (22). A slide rail (25) placed below the movable plate (21) is connected to one side of the limiting ring (23) through a fixed rod (24). A sliding groove (26) corresponding to itself is provided on the side of the limiting ring (23) away from the fixed rod (24).

2. The adjustable plastic bag slitting machine according to claim 1, characterized in that: An arc-shaped swing arm (212) is connected above the movable plate (21) via a fixed shaft (211) and is fixedly connected to the limiting slot (22). A cutting blade (11) is fixedly connected to the side of the limiting slot (22) near the movable plate (21). The movable plate (21) is provided with a through hole (213) corresponding to the cutting blade (11). A T-shaped limiting plate (214) placed in the slide rail (25) is fixedly connected below the movable plate (21).

3. The adjustable plastic bag slitting machine according to claim 1, characterized in that: The sliding groove (26) and the movable plate (21) are fixedly connected. The sliding groove (26) is provided with a sliding member (27) that passes through the limiting ring (23) and is movably connected to the limiting ring (23). The limiting ring (23) is provided with a drive shaft (28) that passes through itself and the fixed rod (24) at one end away from the sliding member (27). The other end of the drive shaft (28) is connected to a drive motor (29).

4. The adjustable plastic bag slitting machine according to claim 1, characterized in that: The three sides of the limiting ring (23) are arc-shaped. The sliding member (27) is installed on the side of the limiting ring (23). The driving shaft (28) passes through one corner of the limiting ring (23), and the driving shaft (28) and the sliding member (27) are in opposite positions.

5. An adjustable plastic bag slitting machine according to claim 2, characterized in that: The mounting platform (1) is provided with a cutting groove (12) corresponding to the cutting blade (11), and a roller shaft (13) is connected to one end of the mounting platform (1). The length of the movable plate (21) is greater than that of the sliding groove (26).

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