A bag cutting device for plastic bag processing
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CANGNAN COUNTY TIANZE PACKAGING CO LTD
- Filing Date
- 2025-08-25
- Publication Date
- 2026-08-07
AI Technical Summary
[0004]现如今的切袋装置在进行工作时,由于塑料袋自身较轻,因此在进行切袋工作时,切刀会将切下的塑料袋带到空中,此时不利于进行收集工作,现如今在进行收集时,塑料袋会被送到收集板上,若是收集板与切刀距离较远,下落的塑料袋容易落到外面,而收集板与切刀距离较近时,则无法收集较多的塑料袋
[0013] 1. This utility model is equipped with a support frame, a fan mechanism, a gas chamber, and an exhaust channel. When the bag is being cut, the fan mechanism inside the support frame is activated, and the fan blows air downwards. The air blown downwards passes through the gas chamber and is then blown out downwards through the exhaust channel. The air blown downwards through the exhaust channel blows to both sides of the cutter. When the bag is being cut, the downward-blown air can limit the plastic bag downwards, preventing the upward-moving cutter from taking the plastic bag away, so that the plastic bag can be cut smoothly.
Smart Images

Figure CN224602426U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic bag processing technology, and more specifically to a bag cutting device for plastic bag processing. Background Technology
[0002] Plastic bags, with their advantages of being lightweight, low-cost, and waterproof, have become an indispensable material in the modern packaging field and are widely used in many industries such as retail, food, medicine, and industrial protection. With the continuous expansion of the consumer market and the booming development of e-commerce logistics, the market demand for plastic bags has surged, while higher requirements have been placed on the uniformity of bag specifications, the smoothness of the cut, production efficiency, and production costs.
[0003] In the large-scale production process of plastic bags, the precise and efficient cutting of continuous tubular or sheet-shaped plastic film into individual plastic bags of predetermined length is a crucial subsequent process. The cutting equipment usually consists of an unwinding device, a simple traction mechanism, a rotating circular blade, and a receiving table.
[0004] When modern bag-cutting devices are in operation, because plastic bags are relatively light, the cutter will carry the cut plastic bags into the air during the cutting process, which is not conducive to collection. Currently, during collection, the plastic bags are sent to a collection plate. If the collection plate is too far from the cutter, the falling plastic bags are likely to fall outside. If the collection plate is too close to the cutter, it is impossible to collect more plastic bags. Utility Model Content
[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a bag cutting device for processing plastic bags to solve the problems existing in the background art.
[0006] This utility model provides the following technical solution: a bag cutting device for processing plastic bags, including a working base, with supporting side plates fixedly connected to both sides of the working base, a feeding mechanism on one side of the top of the working base, a cutting mechanism on the other side of the top of the working base, a feeding mechanism on the side of the cutting mechanism away from the feeding mechanism, a wind power component above the feeding mechanism, and a collecting component on the side of the feeding mechanism away from the cutting mechanism; the wind power component includes a gas chamber capable of containing gas, a sealing cover fixedly connected to the top of the gas chamber, a through hole opened at the top of the sealing cover, a supporting frame fixedly connected inside the through hole of the sealing cover, a fan mechanism movably connected inside the supporting frame, and an exhaust channel fixedly connected to the bottom of the gas chamber.
[0007] Furthermore, a filter plate is fixedly connected to the top of the support frame, and support plates are fixedly connected to both sides of the gas chamber. The side of the support plate away from the gas chamber is fixedly connected to the side of the support side plate. There are two support frames, two fan mechanisms, and two filter plates, which are distributed on both sides of the top of the sealing cover.
[0008] Furthermore, the exhaust channels are provided in two rows, which are distributed on both sides of the cutting mechanism. Each row has five exhaust channels, and the five exhaust channels in each row are equidistantly distributed on the side of the cutting mechanism.
[0009] Furthermore, the collecting assembly includes a limiting frame for limiting movement. A collecting plate is movably connected inside the limiting frame. Limiting rods are fixedly connected to the bottom ends of the four corners of the collecting plate. Limiting cylinders are movably connected to the sides of the limiting rods. The bottom end of the limiting cylinders is fixedly connected to the bottom end inside the limiting frame. Supporting springs are movably sleeved on the sides of the limiting rods and the limiting cylinders.
[0010] Furthermore, a limiting plate is fixedly connected to one side of the top of the inner limit frame, and a limiting groove is opened on one side of the top of the collecting plate. When the collecting plate is at the topmost position, the limiting plate is located in the limiting groove of the collecting plate.
[0011] Furthermore, a lifting rod is fixedly connected to the center of the bottom end inside the limiting frame, and a switch is fixedly connected to the top of the lifting rod. The switch is triggered when the collecting plate moves to the bottom.
[0012] The technical effects and advantages of this utility model are as follows:
[0013] 1. This utility model is equipped with a support frame, a fan mechanism, a gas chamber, and an exhaust channel. When the bag is being cut, the fan mechanism inside the support frame is activated, and the fan blows air downwards. The air blown downwards passes through the gas chamber and is then blown out downwards through the exhaust channel. The air blown downwards through the exhaust channel blows to both sides of the cutter. When the bag is being cut, the downward-blown air can limit the plastic bag downwards, preventing the upward-moving cutter from taking the plastic bag away, so that the plastic bag can be cut smoothly.
[0014] 2. This utility model, by providing a collecting plate and a supporting spring, allows the cut plastic bags to be sent to the top of the collecting plate. As more plastic bags are sent out, the collecting plate moves downward under the action of gravity and compresses the supporting spring. The more plastic bags are sent out, the more the collecting plate moves downward, so that the distance between the receiving surface and the cutter is kept within a certain range, the cut plastic bags will not fall to the outside, and a large number of plastic bags can be received. Attached Figure Description
[0015] Figure 1This is a schematic diagram of the overall structure of this utility model.
[0016] Figure 2 This is a schematic diagram of the overall exploded structure of this utility model.
[0017] Figure 3 This is a schematic diagram of the wind turbine component structure of this utility model.
[0018] Figure 4 This is a schematic diagram of the collection component structure of this utility model.
[0019] Figure 5 This is a schematic diagram of the internal structure of the collection component of this utility model.
[0020] The attached diagram is labeled as follows: 1. Working base; 2. Supporting side plate; 3. Feeding mechanism; 4. Cutting mechanism; 5. Unloading mechanism; 6. Wind power component; 601. Support plate; 602. Gas chamber; 603. Sealing cover; 604. Support frame; 605. Fan mechanism; 606. Filter plate; 607. Exhaust channel; 7. Collection component; 701. Limiting frame; 702. Limiting plate; 703. Collection plate; 704. Limiting rod; 705. Limiting cylinder; 706. Supporting spring; 707. Lifting rod; 708. Switch. Detailed Implementation
[0021] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0022] Reference Figure 1 , Figure 2 as well as Figure 3 This utility model provides a bag cutting device for processing plastic bags, including a working base 1, with supporting side plates 2 fixedly connected to both sides of the working base 1, a feeding mechanism 3 provided on one side of the top of the working base 1, a cutting mechanism 4 provided on the other side of the top of the working base 1, a feeding mechanism 5 provided on the side of the cutting mechanism 4 away from the feeding mechanism 3, a wind power component 6 provided above the feeding mechanism 5, and a collecting component 7 provided on the side of the feeding mechanism 5 away from the cutting mechanism 4.
[0023] The wind power component 6 includes a gas chamber 602 that can contain gas. A sealing cover 603 is fixedly connected to the top of the gas chamber 602. A through hole is opened at the top of the sealing cover 603. A support frame 604 is fixedly connected inside the through hole of the sealing cover 603. A fan mechanism 605 is movably connected inside the support frame 604. An exhaust channel 607 is fixedly connected to the bottom of the gas chamber 602. A filter plate 606 is fixedly connected to the top of the support frame 604. Support plates 601 are fixedly connected to both sides of the gas chamber 602. The side away from the gas chamber 602 of 601 is fixedly connected to the side of the support side plate 2. There are two support frames 604, two fan mechanisms 605 and two filter plates 606. The two support frames 604, two fan mechanisms 605 and two filter plates 606 are distributed on both sides of the top of the sealing cover 603. There are two rows of exhaust channels 607. The two rows of exhaust channels 607 are distributed on both sides of the cutter mechanism 4. There are five exhaust channels 607 in each row. The five exhaust channels 607 in each row are equidistantly distributed on the side of the cutter mechanism 4.
[0024] In this embodiment, when the fan mechanism 605 is activated, it blows outside gas into the gas chamber 602. The gas is filtered by the filter plate 606 upon entry, and the filtered clean gas enters the gas chamber 602, preventing the plastic bag from being contaminated. The clean gas is discharged downward through the two rows of exhaust channels 607 on the lower side. The downwardly discharged gas blows to both sides of the cutting mechanism 4. Therefore, when the cutting mechanism 4 is cutting, it will not cause the plastic bag to move upward, ensuring that the plastic bag is stably delivered to the collection plate 703. The downward blowing of air by the two fan mechanisms 605 increases the amount of gas entering the gas chamber 602, thereby making the airflow of the exhaust channels 607 stronger and achieving a better downward pressure limiting effect. The two rows of exhaust channels 607 are distributed on both sides of the cutting mechanism 4, which can achieve a better downward pressure effect on the plastic bag before and after cutting.
[0025] Reference Figure 4 and Figure 5 The collecting component 7 includes a limiting frame 701 for limiting movement. A collecting plate 703 is movably connected inside the limiting frame 701. Limiting rods 704 are fixedly connected to the bottom ends of the four corners of the collecting plate 703. Limiting cylinders 705 are movably connected to the sides of the limiting rods 704. The bottom end of the limiting cylinders 705 is fixedly connected to the bottom end inside the limiting frame 701. Supporting springs 706 are movably sleeved on the sides of the limiting rods 704 and the limiting cylinders 705. A limiting plate 702 is fixedly connected to one side of the top end inside the limiting frame 701. A limiting groove is opened on one side of the top end of the collecting plate 703. When the collecting plate 703 is at the top, the limiting plate 702 is located in the limiting groove of the collecting plate 703. A lifting rod 707 is fixedly connected to the center of the bottom end inside the limiting frame 701. A switch 708 is fixedly connected to the top end of the lifting rod 707. The switch 708 is triggered when the collecting plate 703 moves to the bottom.
[0026] In this embodiment, under the action of gravity, the collecting plate 703 moves downward and compresses the support spring 706 after receiving the cut plastic bag. Therefore, the distance from the top of the plastic bag on the collecting plate 703 to the cutting mechanism 4 remains stable, allowing the collecting plate 703 to continuously receive the cut plastic bags. When the plastic bag assembly accumulates, the downward-moving collecting plate 703 will contact the switch 708 and trigger the switch 708. At this time, the cut plastic bag can be removed. After the plastic bag is removed, the support spring 706 resets and causes the collecting plate 703 to move upward and reset. At this time, the collection of plastic bags can continue. When the collecting plate 703 moves, it is limited by the limiting rod 704 and the limiting cylinder 705 to ensure its stability during movement. When the collecting plate 703 moves upward, it is limited by the limiting plate 702 to prevent the collecting plate 703 from leaving the limiting frame 701.
[0027] The working principle of this utility model is as follows: When the bag cutting operation is performed, the plastic bag raw material is sent to the bottom of the cutting mechanism 4 through the feeding mechanism 3. At this time, the cutting mechanism 4 cuts the plastic bag raw material and sends it to the collection component 7 for collection by the feeding mechanism 5. When the cutting mechanism 4 cuts, the fan mechanism 605 in the support frame 604 is started. When the fan mechanism 605 is started, it blows the outside gas into the gas chamber 602. When the gas enters, it is filtered by the filter plate 606. The filtered clean gas enters the gas chamber 602 and is discharged downward through the two rows of exhaust channels 607 on the lower side. The gas discharged downward blows to both sides of the cutting mechanism 4. Therefore, when the cutting mechanism 4 is cutting, it will not cause the plastic bag to move upward, ensuring that the plastic bag is stably sent to the collection plate 703.
[0028] The plastic bags fed onto the collecting plate 703 accumulate on top of the collecting plate 703. As the number of plastic bags increases, the collecting plate 703 moves downward under the action of gravity and compresses the support spring 706. Therefore, the distance from the top of the plastic bags on the collecting plate 703 to the cutting mechanism 4 remains stable, allowing the collecting plate 703 to continuously receive the cut plastic bags. When the plastic bag assembly accumulates, the downward-moving collecting plate 703 will contact the switch 708 and trigger the switch 708. At this time, the cut plastic bags can be removed. After the plastic bags are removed, the support spring 706 resets and causes the collecting plate 703 to move upward and reset. At this time, the collection of plastic bags can continue.
[0029] In conclusion, the above are merely preferred embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A bag-cutting device for processing plastic bags, comprising a work base (1), characterized in that: Both sides of the working base (1) are fixedly connected to support side plates (2). A feeding mechanism (3) is provided on one side of the top of the working base (1), and a cutting mechanism (4) is provided on the other side of the top of the working base (1). A feeding mechanism (5) is provided on the side of the cutting mechanism (4) away from the feeding mechanism (3). A wind power component (6) is provided above the feeding mechanism (5). A collection component (7) is provided on the side of the feeding mechanism (5) away from the cutting mechanism (4). The wind power component (6) includes a gas chamber (602) that can contain gas. A sealing cover (603) is fixedly connected to the top of the gas chamber (602). A through hole is opened at the top of the sealing cover (603). A support frame (604) is fixedly connected inside the through hole of the sealing cover (603). A fan mechanism (605) is movably connected inside the support frame (604). An exhaust channel (607) is fixedly connected to the bottom of the gas chamber (602).
2. The bag cutting device for processing plastic bags according to claim 1, characterized in that: A filter plate (606) is fixedly connected to the top of the support frame (604), and a support plate (601) is fixedly connected to both sides of the gas chamber (602). The side of the support plate (601) away from the gas chamber (602) is fixedly connected to the side of the support side plate (2). There are two support frames (604), two fan mechanisms (605), and two filter plates (606). The two support frames (604), two fan mechanisms (605), and two filter plates (606) are distributed on both sides of the top of the sealing cover (603).
3. The bag cutting device for processing plastic bags according to claim 2, characterized in that: The exhaust channels (607) are provided in two rows, and the two rows of exhaust channels (607) are distributed on both sides of the cutting mechanism (4). Each row of exhaust channels (607) has five exhaust channels (607), and the five exhaust channels (607) in each row are equidistantly distributed on the side of the cutting mechanism (4).
4. The bag cutting device for processing plastic bags according to claim 1, characterized in that: The collecting component (7) includes a limiting frame (701) for limiting, and a collecting plate (703) is movably connected inside the limiting frame (701). Limiting rods (704) are fixedly connected to the bottom ends of the four corners of the collecting plate (703). Limiting cylinders (705) are movably connected to the sides of the limiting rods (704). The bottom end of the limiting cylinders (705) is fixedly connected to the bottom end inside the limiting frame (701). Supporting springs (706) are movably sleeved on the sides of the limiting rods (704) and the limiting cylinders (705).
5. The bag cutting device for processing plastic bags according to claim 4, characterized in that: A limiting plate (702) is fixedly connected to one side of the top of the limiting frame (701), and a limiting groove is opened on one side of the top of the collecting plate (703). When the collecting plate (703) is at the topmost position, the limiting plate (702) is located in the limiting groove of the collecting plate (703).
6. The bag cutting device for processing plastic bags according to claim 5, characterized in that: A lifting rod (707) is fixedly connected to the center of the bottom of the limiting frame (701), and a switch (708) is fixedly connected to the top of the lifting rod (707). The switch (708) is triggered when the collecting plate (703) moves to the bottom.