Environmentally friendly plastic bag production and processing equipment

By designing a limiting and slitting mechanism, the problem of movement of plastic bags during forming and slitting is solved, resulting in better cutting effect and forming quality.

CN224276474UActive Publication Date: 2026-05-26HEBEI XIONGAN YUESHEN PAPER & PLASTIC PACKAGING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEBEI XIONGAN YUESHEN PAPER & PLASTIC PACKAGING CO LTD
Filing Date
2025-07-16
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

In the existing technology, during the production and processing of environmentally friendly plastic bags, the surface of the plastic bag is easily moved due to the cutting force during the forming and cutting process, resulting in poor cutting effect.

Method used

The system employs a limiting mechanism and a slitting mechanism. An electric push rod pushes the base plate downward, causing the limiting rod and pressure plate to move synchronously and press the surface of the plastic bag material. The meshing of gears and toothed columns drives the slitting blade to move, ensuring that the plastic bag material moves under pressure. The use of moving wheels and guide rods improves stability and slitting effect.

Benefits of technology

It effectively prevents the plastic bag raw materials from moving during slitting, improves the cutting effect, and ensures the quality of plastic bag forming.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224276474U_ABST
    Figure CN224276474U_ABST
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Abstract

This utility model discloses an environmentally friendly plastic bag production and processing device, relating to the field of plastic bag production technology. It includes a machine base with a box fixed to its upper end and a frame fixed to the middle of the upper end of the box. The device uses an electric push rod to move the bottom plate downwards, causing the bottom plate to move synchronously with a limiting rod and a pressure plate. This allows the pressure plate to contact the surface of the plastic bag material on the conveyor belt and gradually press it down, preventing movement during cutting. Moving wheels allow the plastic bag material to continue moving with the conveyor belt while being pressed, improving the forming effect. A rotating gear drives a meshing toothed column downwards, which in turn pushes a mounting plate downwards, causing a slitting blade to move synchronously. This allows the slitting blade to contact the plastic bag material for slitting. A guide rod ensures the smoothness of the toothed column and mounting plate's vertical movement.
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Description

Technical Field

[0001] This utility model relates to the field of plastic bag production technology, specifically to an environmentally friendly plastic bag production and processing device. Background Technology

[0002] In daily life, eco-friendly plastic bags are a general term for various biodegradable plastic bags. With the development of technology, various materials that can replace traditional PE plastics have emerged, and eco-friendly plastic bags are now widely used. Examples of their large-scale application in China include supermarket shopping bags, roll food storage bags, and agricultural films.

[0003] Currently, plastic bags are generally made by appropriately cutting the raw materials.

[0004] When using existing equipment, the surface of the plastic bag is easily moved due to the cutting force during the forming and cutting process, resulting in poor cutting effect. Utility Model Content

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] An environmentally friendly plastic bag production and processing device includes a machine base, a box fixedly provided at the upper end of the machine base, a frame fixedly provided at the middle of the upper end of the box, a sleeve fixedly provided on the right side of the frame, a limiting mechanism provided on both sides of the upper end of the box, and a cutting mechanism provided at the upper end of the box.

[0007] The limiting mechanism includes an electric push rod, the lower end of which is fixedly connected to both sides of the upper end of the housing. A base plate is fixedly provided at the lower end of the output rod of the electric push rod. Ear plates are fixedly provided at both the front and rear ends of the base plate. A limiting rod is slidably provided inside the ear plate. A spring is sleeved on the lower end of the limiting rod. A pressure plate is fixedly provided at the lower end of the limiting rod. Multiple sets of grooves are formed inside the lower end of the pressure plate. Moving wheels are rotatably installed inside the grooves.

[0008] Preferably, the two ends of the spring are fixedly connected to the opposite surfaces of the ear plate and the pressure plate, respectively, and the outer wall of the movable wheel is fixedly provided with anti-static stripes.

[0009] Preferably, the cutting mechanism includes a toothed column, the outside of which is slidably installed with the inside of the sleeve frame, a support plate is fixedly provided on one side of the upper end of the housing, a rotating shaft is rotatably installed in the middle of the support plate, a gear is fixedly provided at the bottom end of the rotating shaft, a motor is fixedly provided on the rear side of the upper end of the housing, a pulley one is fixedly provided at the top end of the output rod of the motor, a pulley two is fixedly provided at the top end of the rotating shaft, belts are sleeved on the outside of pulley one and pulley two, a guide rod is slidably provided inside the sleeve, and a mounting plate is fixedly provided at the bottom end of the toothed column.

[0010] Preferably, one side of the toothed column meshes with the gear.

[0011] Preferably, the bottom end of the guide rod is fixedly connected to one side end of the mounting plate.

[0012] Preferably, the lower end of the mounting plate is fixedly provided with multiple sets of springs II, and the lower end of the springs II is fixedly provided with a cutting blade.

[0013] Preferably, the inner sides of the box are respectively equipped with conveyor belt one and conveyor belt two for rotation.

[0014] Preferably, a support rod is fixedly provided at the upper middle part of the machine base, and a carrier plate is fixedly provided at the top of the support rod, with the carrier plate located directly below the slitting blade.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. This utility model provides an environmentally friendly plastic bag production and processing forming device. Through a limiting mechanism, an electric push rod can push the bottom plate down, so that the bottom plate can drive the limiting rod and the pressure plate to move synchronously. This allows the pressure plate to contact the surface of the plastic bag raw material on the conveyor belt and gradually press it down, thereby preventing movement during cutting. The moving wheel allows the plastic bag raw material to continue to move with the conveyor belt while being pressed down, so as to improve the forming effect of the plastic bag.

[0017] 2. This utility model provides an environmentally friendly plastic bag production and processing forming device. Through the slitting mechanism, the rotating gear can drive the meshing tooth column to move downward, and the tooth column can push the mounting plate to move downward synchronously, thereby driving the slitting knife to move synchronously, so that the slitting knife can contact the plastic bag raw material for slitting. The guide rod can ensure the stability of the up and down movement of the tooth column and the mounting plate. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the environmentally friendly plastic bag production and forming device of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the box body of this utility model;

[0020] Figure 3 This is a schematic diagram of the limiting mechanism of this utility model;

[0021] Figure 4 This is a schematic diagram of the slitting mechanism of this utility model;

[0022] Figure 5 This is a structural schematic diagram showing the details of the cutting mechanism of this utility model.

[0023] In the diagram: 1. Machine base; 2. Housing; 3. Sleeve frame; 4. Sleeve; 5. Limiting mechanism; 6. Slitting mechanism; 7. Conveyor belt one; 8. Conveyor belt two; 9. Support rod; 10. Carrier plate; 51. Electric push rod; 52. Base plate; 53. Ear plate; 54. Limiting rod; 55. Spring one; 56. Pressure plate; 57. Groove; 58. Moving wheel; 61. Gear column; 62. Support plate; 63. Rotating shaft; 64. Gear; 65. Motor; 66. Pulley one; 67. Pulley two; 68. Belt; 69. Guide rod; 610. Mounting plate; 611. Spring two; 612. Slitting blade. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to embodiments:

[0025] like Figures 1-5 As shown, this utility model provides an environmentally friendly plastic bag production and processing forming device, including a machine base 1, a box body 2 fixedly provided at the upper end of the machine base 1, a sleeve frame 3 fixedly provided at the middle of the upper end of the box body 2, a sleeve 4 fixedly provided on the right side of the sleeve frame 3, a limiting mechanism 5 provided on both sides of the upper end of the box body 2, and a cutting mechanism 6 provided at the upper end of the box body 2.

[0026] The inside of the box 2 is equipped with a first conveyor belt 7 and a second conveyor belt 8, which rotate on both sides.

[0027] A support rod 9 is fixedly installed at the upper middle part of the machine base 1, and a carrier plate 10 is fixedly installed at the top of the support rod 9. The carrier plate 10 is located directly below the slitting blade 612.

[0028] In this design, the frame 3 and sleeve 4 facilitate the vertical sliding of the toothed column 61 and guide rod 69, while the carrier plate 10 facilitates the contact cutting of the plastic bag raw material by the cutting blade 612.

[0029] like Figure 3 As shown, the limiting mechanism 5 includes an electric push rod 51. The lower end of the electric push rod 51 is fixedly connected to the upper end of the housing 2 on both sides. The lower end of the output rod of the electric push rod 51 is fixedly provided with a base plate 52. The front and rear ends of the base plate 52 are both fixedly provided with ear plates 53. The ear plates 53 are slidably provided with a limiting rod 54. The lower end of the limiting rod 54 is sleeved with a spring 55. The lower end of the limiting rod 54 is fixedly provided with a pressure plate 56. The lower end of the pressure plate 56 has multiple sets of grooves 57. The grooves 57 are rotatably installed with moving wheels 58 inside.

[0030] The two ends of the spring 55 are fixedly connected to the opposite surfaces of the ear plate 53 and the pressure plate 56, respectively, and the outer wall of the movable wheel 58 is fixedly provided with anti-static stripes.

[0031] In this solution, when the pressure plate 56 comes into contact with the raw material, the spring 55 provides appropriate cushioning to prevent damage to the surface of the raw material due to rigid contact. As the electric push rod 51 continues to push, the pressure plate 56 gradually presses the raw material under the action of the spring 55, thus ensuring that the raw material is firmly fixed without deforming due to excessive pressure. At the same time, due to the continuous operation of the conveyor belt, the moving wheel 58 rolls under the action of friction, allowing the plastic bag raw material to move with the conveyor belt even when it is pressed, which greatly improves the cutting effect. The anti-static stripes on the moving wheel 58 ensure that the plastic bag raw material does not stick together.

[0032] like Figures 4-5 As shown, the slitting mechanism 6 includes a toothed column 61, which is slidably installed on the outside of the toothed column 61 and the inside of the sleeve frame 3. A support plate 62 is fixedly installed on one side of the upper end of the housing 2. A rotating shaft 63 is rotatably installed in the middle of the support plate 62. A gear 64 is fixedly installed at the bottom end of the rotating shaft 63. A motor 65 is fixedly installed on the rear side of the upper end of the housing 2. A pulley 66 is fixedly installed at the top of the output rod of the motor 65. A pulley 67 is fixedly installed at the top of the rotating shaft 63. A belt 68 is sleeved on the outside of the pulley 66 and the pulley 67. A guide rod 69 is slidably installed inside the sleeve 4. A mounting plate 610 is fixedly installed at the bottom end of the toothed column 61.

[0033] One side of the toothed column 61 meshes with the gear 64.

[0034] The bottom end of the guide rod 69 is fixedly connected to one side end of the mounting plate 610.

[0035] Multiple sets of springs 611 are fixedly installed at the lower end of the mounting plate 610, and a slitting blade 612 is fixedly installed at the lower end of the springs 611.

[0036] In this design, the mounting plate 610 can drive the guide rod 69 to move up and down synchronously to improve the stability of movement. When the slitting blade 612 contacts the carrier plate 10 to slit the raw material, the elastic effect of the spring 611 can protect the slitting blade 612 and prevent it from being rigidly damaged.

[0037] The working principle of this environmentally friendly plastic bag production and processing device will be explained in detail below.

[0038] like Figures 1-5As shown, in use, the environmentally friendly plastic bag production and processing forming device can transport plastic bag raw materials through conveyor belt 7 and conveyor belt 8. When cutting the plastic bag raw materials, the electric push rods 51 on both sides can be activated first. The electric push rods 51 can push the bottom plate 52 downward. The bottom plate 52, through the limit rod 54, drives the pressure plate 56 to move synchronously, so that the pressure plate 56 can contact the plastic bag raw materials on the conveyor belt to press them down and prevent the plastic bag raw materials from shifting during subsequent cutting. Then, the motor 65 is started. The motor 65 drives the rotating shaft 63 to rotate through the transmission structure of pulley 66, pulley 67 and belt 68. The rotating shaft 63 drives the gear 64 to rotate. The gear 64 drives the meshing tooth column 61 to move downward, so that the tooth column 61 can push the mounting plate 610 and the cutting blade 612 to move synchronously, thereby making the cutting blade 612 contact the plastic bag raw materials and cut them.

[0039] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. An environmentally friendly plastic bag production and processing device, comprising a machine base (1), wherein a box body (2) is fixedly provided at the upper end of the machine base (1), characterized in that: A frame (3) is fixedly provided at the middle of the upper end of the box (2), a sleeve (4) is fixedly provided on the right side of the frame (3), a limiting mechanism (5) is provided on both sides of the upper end of the box (2), and a cutting mechanism (6) is provided at the upper end of the box (2). The limiting mechanism (5) includes an electric push rod (51). The lower end of the electric push rod (51) is fixedly connected to the upper two sides of the housing (2). The lower end of the output rod of the electric push rod (51) is fixedly provided with a base plate (52). The front and rear ends of the base plate (52) are both fixedly provided with ear plates (53). The ear plates (53) are slidably provided with a limiting rod (54). The lower end of the limiting rod (54) is sleeved with a spring (55). The lower end of the limiting rod (54) is fixedly provided with a pressure plate (56). The lower end of the pressure plate (56) has multiple sets of grooves (57). The grooves (57) are rotatably installed with moving wheels (58).

2. The environmentally friendly plastic bag production and forming device according to claim 1, characterized in that: The two ends of the spring (55) are fixedly connected to the opposite surfaces of the ear plate (53) and the pressure plate (56), respectively, and the outer wall of the movable wheel (58) is fixedly provided with anti-static stripes.

3. The environmentally friendly plastic bag production and forming device according to claim 1, characterized in that: The cutting mechanism (6) includes a toothed column (61), the outside of which is slidably installed with the inside of the sleeve frame (3). A support plate (62) is fixedly provided on one side of the upper end of the housing (2). A rotating shaft (63) is rotatably installed in the middle of the support plate (62). A gear (64) is fixedly provided at the bottom end of the rotating shaft (63). A motor (65) is fixedly provided on the rear side of the upper end of the housing (2). A pulley (66) is fixedly provided at the top end of the output rod of the motor (65). A pulley (67) is fixedly provided at the top end of the rotating shaft (63). A belt (68) is sleeved on the outside of the pulley (66) and the pulley (67). A guide rod (69) is slidably provided inside the sleeve (4). A mounting plate (610) is fixedly provided at the bottom end of the toothed column (61).

4. The environmentally friendly plastic bag production and forming device according to claim 3, characterized in that: One side of the toothed column (61) meshes with the gear (64).

5. The environmentally friendly plastic bag production and forming device according to claim 3, characterized in that: The bottom end of the guide rod (69) is fixedly connected to one side end of the mounting plate (610).

6. The environmentally friendly plastic bag production and forming device according to claim 3, characterized in that: The lower end of the mounting plate (610) is fixedly provided with multiple sets of springs (611), and the lower end of the springs (611) is fixedly provided with a cutting blade (612).

7. The environmentally friendly plastic bag production and forming device according to claim 1, characterized in that: The box (2) has a conveyor belt 1 (7) and a conveyor belt 2 (8) rotatably mounted on its two sides.

8. The environmentally friendly plastic bag production and processing device according to claim 1, characterized in that: A support rod (9) is fixedly provided at the middle of the upper end of the machine base (1), and a carrier plate (10) is fixedly provided at the top of the support rod (9). The carrier plate (10) is located directly below the slitting blade (612).