Drum-type cutting device for packaging bags

Abstract

The utility model discloses a drum-type cutting device for packaging bags, which relates to the technical field of cutting devices and comprises a frame, a cutter arranged above the frame and used for cutting the packaging bags; a roller is rotationally connected to the inner wall of the square plate, a sliding plate is slidably connected to the inner wall of the square plate, and a pressing roller is arranged below the sliding plate and attached to the roller; the pressing mechanism is arranged outside the pressing roller, and the pressing mechanism is used for pressing the packaging bag; and the lifting driving mechanism is arranged outside the sliding plate, and the lifting driving mechanism is used for driving the pressing roller to ascend and descend. The cutter is used for cutting a packaging bag, meanwhile, the pressing roller is used for fixing the packaging bag, the lifting driving mechanism drives the pressing roller to move in the cutting process, under the action of the pressing mechanism, the pressing roller is attached to the roller all the time, pressure on the packaging bag is increased in the moving process of the pressing roller, and meanwhile the packaging bag is tensioned. And the phenomenon that the packaging bag material slips is avoided.

Description

Technical Field

[0001] This utility model relates to the field of cutting device technology, and in particular to a roller-type cutting device for packaging bags. Background Technology

[0002] The packaging bag roller cutting device is a piece of equipment used to cut packaging bags. It is mainly used to cut packaging bags of various sizes. The cutting device is suitable for various types of packaging bags, including plastic bags, paper bags, etc. Its efficient and stable cutting performance makes it widely used in packaging production lines.

[0003] The packaging bag roller cutting device uses pressure rollers to make the passing film, cloth, paper and other materials stick tightly to the main roller, increasing the contact friction and contact area, and making the transmission process more stable. However, when the traditional pressure roller is cutting the packaging bag, the packaging bag material is prone to slippage due to the pressure, resulting in wrinkles or deviation of the cut packaging bag. Utility Model Content

[0004] The purpose of this invention is to provide a roller-type cutting device for packaging bags to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a roller-type cutting device for packaging bags, comprising:

[0006] A frame, with a cutting tool mounted on top of the frame, the cutting tool being used to cut packaging bags;

[0007] A square plate, wherein a roller is rotatably connected to the inner wall of the square plate, a sliding plate is slidably connected to the inner wall of the square plate, and a pressure roller is provided below the sliding plate, the pressure roller being in contact with the roller;

[0008] A pressing mechanism is disposed outside the pressure roller and is used to press the packaging bag;

[0009] A lifting drive mechanism is provided outside the slide plate and is used to drive the pressure roller to lift.

[0010] Preferably, a fixed frame is fixedly connected to the top of the frame, a driving component is fixedly connected to the outer wall of the fixed frame, a lifting plate is fixedly connected to the output end of the driving component, and the cutting tool is fixedly connected to the bottom of the lifting plate.

[0011] Preferably, the lifting drive mechanism includes a second pressure rod, which is fixedly connected to the outer wall of the lifting plate, and a first pressure rod is fixedly connected to the outer wall of the sliding plate. An elastic component is provided between the sliding plate and the square plate.

[0012] Preferably, the elastic component includes a spring, a first circular rod is slidably connected to the inner wall of the square plate, the bottom end of the first circular rod is fixedly connected to the top of the slide plate, and the spring is fixedly connected between the slide plate and the square plate.

[0013] Preferably, the pressing mechanism includes a connecting rod, a fixing block is fixedly connected to the bottom of the slide plate, a second circular rod is fixedly connected to the outer wall of the fixing block, the connecting rod is rotatably sleeved on the outer wall of the second circular rod, and the pressure roller is rotatably connected to the end of the connecting rod away from the second circular rod.

[0014] Preferably, there are two rollers arranged horizontally and symmetrically, and a torsion spring is fixedly connected between the fixing block and the connecting rod.

[0015] Compared with the prior art, the technical effects of this utility model are as follows:

[0016] This invention utilizes a cutting tool to cut packaging bags while simultaneously using a pressure roller to hold them in place. During the cutting process, a lifting drive mechanism moves the pressure roller, and under the action of a pressing mechanism, the pressure roller remains in contact with the drum. As the pressure roller moves, it increases the pressure on the packaging bag and tightens it, preventing the packaging bag material from slipping. Attached Figure Description

[0017] Figure 1 This is a frontal three-dimensional structural diagram of the present utility model.

[0018] Figure 2 This is a three-dimensional sectional view of the fixing frame of this utility model.

[0019] Figure 3 This is a three-dimensional structural diagram of the pressure roller of this utility model.

[0020] In the diagram: 1. Frame; 2. Fixing frame; 3. Square plate; 4. Drive component; 5. Slide plate; 6. First pressure rod; 7. Lifting plate; 8. Cutting tool; 9. Second pressure rod; 10. Spring; 11. First circular rod; 12. Torsion spring; 13. Second circular rod; 14. Fixing block; 15. Connecting rod; 16. Pressure roller; 17. Roller. Detailed Implementation

[0021] 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.

[0022] This utility model provides, for example Figures 1-3The illustrated packaging bag roller-type cutting device includes a frame 1, a square plate 3, a pressing mechanism, and a lifting drive mechanism. A cutter 8 is mounted above the frame 1 for cutting packaging bags. A roller 17 is rotatably connected to the inner wall of the square plate 3, and a sliding plate 5 is slidably connected to the inner wall of the square plate 3. A pressure roller 16 is positioned below the sliding plate 5. The roller 17 and pressure roller 16 cooperate to convey packaging bag material. The pressure roller 16 is in contact with the roller 17. Each roller 17 has two pressure rollers 16, which press against both sides of the roller 17, causing the packaging bag to be conveyed around the surface of the roller 17. The pressure rollers 16 prevent... If the packaging bag material shifts during the conveying process, a pressing mechanism is set outside the pressure roller 16 to press the packaging bag. A lifting drive mechanism is set outside the slide plate 5 to drive the pressure roller 16 to rise and fall. In specific use: the cutting tool 8 is used to cut the packaging bag, while the pressure roller 16 is used to fix the packaging bag. During the cutting process, the lifting drive mechanism drives the pressure roller 16 to move. Under the action of the pressing mechanism, the pressure roller 16 is always in contact with the roller 17. The pressure roller 16 increases the pressure on the packaging bag during the movement and tightens the packaging bag to prevent the packaging bag material from slipping.

[0023] On one hand, a fixed frame 2 is fixedly connected to the top of the frame 1, and a drive component 4 is fixedly connected to the outer wall of the fixed frame 2. The drive component 4 includes a hydraulic cylinder, an electrical control system and a pump body. The electrical control system controls the pump body to draw hydraulic oil from the hydraulic cylinder, and the pump body controls the extension and retraction of the hydraulic cylinder to realize the free lifting and lowering of the lifting plate 7. The output end of the drive component 4 is fixedly connected to the lifting plate 7, and the cutter 8 is fixedly connected to the bottom of the lifting plate 7. In specific use: when the packaging bag material is conveyed to the appropriate position, the drive component 4 is started. The drive component 4 drives the lifting plate 7 to move, and the lifting plate 7 drives the cutter 8 to rise and fall. The cutter 8 achieves the purpose of cutting the packaging bag.

[0024] On the other hand, the lifting drive mechanism includes a second pressure rod 9, which is fixedly connected to the outer wall of the lifting plate 7. A first pressure rod 6 is fixedly connected to the outer wall of the slide plate 5. The first pressure rod 6 is located below the second pressure rod 9. During the movement, the second pressure rod 9 abuts against the first pressure rod 6, driving the first pressure rod 6 to move. An elastic component is provided between the slide plate 5 and the square plate 3. The elastic component includes a spring 10. A first circular rod 11 is slidably connected to the inner wall of the square plate 3. The bottom end of the first circular rod 11 is fixedly connected to the top of the slide plate 5. The spring 10 is fixedly connected between the slide plate 5 and the square plate 3. When the spring 10 is in its natural state, the pressure between the pressure roller 16 and the roller 17 is relatively small, ensuring the stable operation of the packaging bag material while preventing the pressure roller 16 from wearing the roller 17 due to excessive pressure. In specific use: the lifting plate 7 drives the second pressure rod 9 to move until the second pressure rod 9 moves to abut against the first pressure rod 6. The second pressure rod 9 drives the first pressure rod 6 to continue moving. The first pressure rod 6 drives the square plate 3 to move. The square plate 3 stretches the spring 10. The square plate 3 drives the pressure roller 16 to move.

[0025] Additionally, the pressing mechanism includes a connecting rod 15, a fixing block 14 fixedly connected to the bottom of the slide plate 5, a second circular rod 13 fixedly connected to the outer wall of the fixing block 14, the connecting rod 15 rotatably sleeved on the outer wall of the second circular rod 13, a pressure roller 16 rotatably connected to the end of the connecting rod 15 away from the second circular rod 13, two rollers 17 arranged horizontally symmetrically, a torsion spring 12 fixedly connected between the fixing block 14 and the connecting rod 15, the torsion spring 12 driving the pressure roller 16 to squeeze the rollers 17 through the connecting rod 15, and the rollers 17 being squeezed during their descent. The packaging bag material is attached to the surface of the roller 17, stretching the packaging bag material between the two rollers 17 and increasing the pressure on the packaging bag. In specific use: the square plate 3 drives the second circular rod 13 to move through the fixed block 14, the second circular rod 13 drives the pressure roller 16 to move, and the second circular rod 13 drives the pressure roller 16 to move through the connecting rod 15. Under the action of the torsion spring 12, the pressure roller 16 is always attached to the roller 17, thereby increasing the pressure on the packaging bag and tightening the packaging bag to prevent the packaging bag material from slipping.

[0026] In actual operation: When the packaging bag material is conveyed to the appropriate position, the drive component 4 is activated. The drive component 4 drives the lifting plate 7 to move, and the lifting plate 7 drives the cutter 8 to rise and fall. The cutter 8 achieves the purpose of cutting the packaging bag. The lifting plate 7 drives the second pressure rod 9 to move until the second pressure rod 9 moves to abut against the first pressure rod 6. The second pressure rod 9 drives the first pressure rod 6 to continue moving. The first pressure rod 6 drives the square plate 3 to move. The square plate 3 stretches the spring 10. The square plate 3 drives the pressure roller 16 to move. The square plate 3 drives the second circular rod 13 to move through the fixing block 14. The second circular rod 13 drives the pressure roller 16 to move through the connecting rod 15. Under the action of the torsion spring 12, the pressure roller 16 is always in contact with the roller 17, thereby increasing the pressure on the packaging bag and tightening the packaging bag to prevent the packaging bag material from slipping.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A roller-type cutting device for packaging bags, characterized in that, include: A frame (1) is provided with a cutter (8) above the frame (1), the cutter (8) being used to cut packaging bags; A square plate (3) is rotatably connected to a roller (17) on its inner wall. A sliding plate (5) is slidably connected to the inner wall of the square plate (3). A pressure roller (16) is provided below the sliding plate (5). The pressure roller (16) is in contact with the roller (17). A pressing mechanism is disposed outside the pressure roller (16) and is used to press the packaging bag; A lifting drive mechanism is provided outside the slide plate (5) and is used to drive the pressure roller (16) to lift.

2. The packaging bag roller cutting device according to claim 1, characterized in that, The top of the frame (1) is fixedly connected to a fixed frame (2), the outer wall of the fixed frame (2) is fixedly connected to a drive component (4), the output end of the drive component (4) is fixedly connected to a lifting plate (7), and the cutter (8) is fixedly connected to the bottom of the lifting plate (7).

3. The packaging bag roller cutting device according to claim 2, characterized in that, The lifting drive mechanism includes a second pressure rod (9), which is fixedly connected to the outer wall of the lifting plate (7). The outer wall of the sliding plate (5) is fixedly connected to a first pressure rod (6). An elastic component is provided between the sliding plate (5) and the square plate (3).

4. The packaging bag roller cutting device according to claim 3, characterized in that, The elastic component includes a spring (10), and a first circular rod (11) is slidably connected to the inner wall of the square plate (3). The bottom end of the first circular rod (11) is fixedly connected to the top of the slide plate (5), and the spring (10) is fixedly connected between the slide plate (5) and the square plate (3).

5. A packaging bag roller-type cutting device according to claim 4, characterized in that, The pressing mechanism includes a connecting rod (15), a fixing block (14) is fixedly connected to the bottom of the sliding plate (5), a second circular rod (13) is fixedly connected to the outer wall of the fixing block (14), the connecting rod (15) is rotatably sleeved on the outer wall of the second circular rod (13), and the pressure roller (16) is rotatably connected to the end of the connecting rod (15) away from the second circular rod (13).

6. A packaging bag roller-type cutting device according to claim 5, characterized in that, The rollers (17) are two in number and arranged horizontally symmetrically. A torsion spring (12) is fixedly connected between the fixing block (14) and the connecting rod (15).

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