Modified polyethylene plastic woven bag cutting equipment
Through the coordinated design of the feeding mechanism, cutting mechanism, and pulling mechanism, the problem of adhesion or discontinuity during the cutting of modified polyethylene plastic woven bags is solved, achieving stable cutting and automatic pulling, and improving cutting efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGQIU JINHUA PACKAGING TECH CO LTD
- Filing Date
- 2025-04-27
- Publication Date
- 2026-05-15
AI Technical Summary
In the existing technology, modified polyethylene plastic woven bags are prone to problems such as sticking or discontinuity after cutting, which affects subsequent processing.
The design combines a material conveying mechanism, a cutting mechanism, and a material pulling mechanism. By utilizing the coordinated operation of the drive conveyor roller, electromagnet clamping, cutting blade, and swing rod, it achieves stable conveying, cutting, and automatic material pulling of woven bags, preventing sticking.
It effectively prevents woven bags from sticking together after cutting, improves cutting efficiency and stability, and ensures the continuity of subsequent processing.
Smart Images

Figure CN224239657U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a woven bag cutting device, specifically a modified polyethylene plastic woven bag cutting device, belonging to the field of modified polyethylene plastic woven bag processing technology. Background Technology
[0002] Modified polyethylene woven bags are woven bag products whose performance is improved by material modification technology based on traditional polyethylene (PE). Antioxidants, reinforcing agents, or fillers are added. During the manufacturing process, the woven bags need to be cut to form a uniform length.
[0003] Chinese Patent Publication No. CN212452019U discloses a cutting device for producing high-temperature resistant woven bags, including a main body, a fixed frame connected to the top center of the main body, a first cylinder passing through the center of the fixed frame, a first piston connected to the output end of the first cylinder, a knife handle connected to one end of the first piston, and a cutting knife connected inside the knife handle. This utility model is characterized by having a main body, a knife compartment, a cutting knife, a frame, and a first cylinder.
[0004] However, the inventor of the above-mentioned device believes that it has certain defects. During the cutting process of the woven bags, the cut woven bags are prone to breakage or sticking together, which affects subsequent processing. Therefore, this utility model provides a modified polyethylene plastic woven bag cutting device. Utility Model Content
[0005] The purpose of this invention is to provide a modified polyethylene plastic woven bag cutting device to solve the above-mentioned problems, thereby addressing the issue that in the prior art, the cut woven bags are prone to breakage or sticking together, affecting subsequent processing.
[0006] This utility model is achieved through the following technical solution: a modified polyethylene plastic woven bag cutting device, including a processing table, on which a material conveying mechanism, a cutting mechanism and a material pulling mechanism are provided. The material conveying mechanism includes two fixed seats fixed to the top of the processing table, and a squeezing roller and a conveying roller are rotatably connected between the two fixed seats. The cutting mechanism includes a movable seat sliding on the top of the processing table, and a fixed plate is fixedly connected to the top of the processing table. A cutting blade is fixedly connected to one side of the movable seat. A through groove is opened on the top of the processing table. The material pulling mechanism includes a swing rod hinged to the bottom of the processing table. A U-shaped frame is fixedly connected to one end of the swing rod. An iron clamp is slidably connected inside the U-shaped frame. An electromagnet for attracting the iron clamp is fixedly connected to one side of the U-shaped frame.
[0007] Preferably, the fixed base has a side sliding groove, and a side slider is slidably connected inside the side sliding groove. The extrusion roller is rotatably connected between the two side sliders. A first compression spring is fixedly connected to one side of the side slider. A drive motor for driving the conveyor roller to rotate is fixedly connected to the fixed base. Under the action of the elastic force of the first compression spring, the woven bag is clamped between the extrusion roller and the conveyor roller.
[0008] Preferably, a fixed block is fixedly connected to the top of the processing table, a first slide rod is slidably connected inside the fixed block, the movable seat is fixedly connected to one end of the first slide rod, a baffle is fixedly connected to the other end of the first slide rod, and a second compression spring is sleeved on the first slide rod. When the cutting blade slides toward the fixed plate, the rebound of the second compression spring drives the movable seat away from the fixed plate.
[0009] Preferably, the top of the processing table is provided with a through groove, and a sliding protrusion slides inside the through groove. A connecting rod is fixedly connected to one side of the movable seat. The sliding protrusion abuts against one end of the connecting rod. An electric push rod is fixedly connected to the top of the processing table. The telescopic end of the electric push rod is fixedly connected to the top of the sliding protrusion. By activating the electric push rod, the sliding protrusion is driven to descend. The inclined surface of the sliding protrusion presses against one end of the connecting rod, thereby pushing the movable seat to slide towards the fixed plate.
[0010] Preferably, a second sliding rod is fixedly connected to one side of the iron clamp, the second sliding rod is slidably connected to the U-shaped frame, a second baffle is fixedly connected to one side of the second sliding rod, and the second baffle is connected to the U-shaped frame by a tension spring. When the iron clamp is not under force, the iron clamp is pulled away from the U-shaped frame by the elastic force of the tension spring to release the clamp on the woven bag.
[0011] Preferably, the bottom of the sliding protrusion is located directly above the swing rod, and a connecting spring is fixedly connected to the top of the swing rod. The other end of the connecting spring is fixedly connected to the bottom of the processing table. When the sliding protrusion continues to descend, it squeezes the top of the swing rod to push the swing rod to flip.
[0012] Preferably, one end of the connecting rod is rotatably connected to a pulley, and the pulley abuts against one side of the sliding protrusion, thereby reducing the friction between one end of the connecting rod and one side of the sliding protrusion under the action of the pulley.
[0013] This utility model provides a modified polyethylene plastic woven bag cutting device, which has the following beneficial effects:
[0014] 1. This device conveys woven bags by driving the conveyor roller to rotate. It uses an electromagnet to generate magnetic force to attract and fix the iron clamps, thus holding the woven bags that have passed through the U-shaped frame. The movable seat is driven to move closer to the fixed plate, and the woven bags are cut by the cutting blade. Then, the swing rod is driven to flip the bag downward, so that the cut woven bags are pulled downward to prevent them from sticking together after cutting, which would affect the cutting efficiency.
[0015] 2. The device uses an electric push rod to drive the sliding protrusion block to descend, causing the inclined surface of the sliding protrusion block to press against the connecting rod, thereby pushing the cutting blade closer to the fixed plate to cut the woven bag. After the sliding protrusion block descends, it presses against the top of the swing rod to drive the swing rod to flip, achieving the effect of automatic material pulling after cutting.
[0016] 3. The device drives the conveyor roller to rotate by starting the drive motor to transport the woven bags. Under the action of the side slide groove, the first compression spring and the side slide block, the squeeze roller and the conveyor roller can remove wrinkles from the transported woven bags. Attached Figure Description
[0017] Figure 1 This is a perspective view of the entire utility model;
[0018] Figure 2 For the present utility model Figure 1 Enlarged view at point A;
[0019] Figure 3 This is a three-dimensional view of the cutting mechanism structure of this utility model;
[0020] Figure 4 For the present utility model Figure 3 Enlarged diagram at point S;
[0021] Figure 5 This is a sectional perspective view of the U-shaped frame of this utility model.
[0022] [Explanation of Key Component Symbols]
[0023] 1. Processing table; 2. Fixed seat; 21. Side slide groove; 22. First compression spring; 3. Extrusion roller; 31. Side slider; 4. Conveyor roller; 41. Drive motor; 5. Cutting knife; 51. Movable seat; 52. First slide rod; 53. Second compression spring; 54. Connecting rod; 55. Fixed plate; 6. Electric push rod; 61. Sliding protrusion; 7. Swing rod; 71. Connecting spring; 8. U-shaped frame; 81. Iron clamp; 82. Electromagnet; 83. Second slide rod; 84. Tension spring. Detailed Implementation
[0024] This utility model provides a modified polyethylene plastic woven bag cutting device.
[0025] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 A modified polyethylene plastic woven bag cutting device includes a processing table 1, on which a material conveying mechanism, a cutting mechanism and a material pulling mechanism are provided.
[0026] Please refer to it again. Figure 1 and Figure 2 The material conveying mechanism includes two fixed seats 2 fixed on the top of the processing table 1. A squeezing roller 3 and a conveying roller 4 are rotatably connected between the two fixed seats 2. A side sliding groove 21 is provided on the fixed seat 2. A side sliding block 31 is slidably connected inside the side sliding groove 21. The squeezing roller 3 is rotatably connected between the two side sliding blocks 31. A first compression spring 22 is fixedly connected to one side of the side sliding block 31. A drive motor 41 for driving the conveying roller 4 is fixedly connected to the fixed seat 2. Under the action of the elastic force of the first compression spring 22, the squeezing roller 3 squeezes the conveying roller 4, so that the woven bag is clamped between the squeezing roller 3 and the conveying roller 4. The conveying roller 4 is driven by starting the drive motor 41 to convey the woven bag.
[0027] Please refer to it again. Figure 1 , Figure 3 and Figure 4 The cutting mechanism includes a movable seat 51 that slides on the top of the processing table 1. A fixed block is fixedly connected to the top of the processing table 1. A first slide rod 52 is slidably connected inside the fixed block. The movable seat 51 is fixedly connected to one end of the first slide rod 52. A baffle is fixedly connected to the other end of the first slide rod 52. A second compression spring 53 is sleeved on the first slide rod 52. A fixed plate 55 is fixedly connected to the top of the processing table 1. A cutting blade 5 is fixedly connected to one side of the movable seat 51. A through slot is opened on the top of the processing table 1. The woven bag passes through the through slot on the top of the processing table 1 to the bottom of the processing table 1. By pushing one side of the movable seat 51 to slide closer to the fixed plate 55, the cutting blade 5 cuts the woven bag. When the movable seat 51 is not under force, the rebound of the second compression spring 53 quickly drives the cutting blade 5 away from the fixed plate 55.
[0028] Please refer to it again. Figure 1 , Figure 3 and Figure 4The processing table 1 has a sliding groove on its top, and a sliding protrusion 61 slides inside the sliding groove. A connecting rod 54 is fixedly connected to one side of the movable seat 51. The sliding protrusion 61 abuts against one end of the connecting rod 54. A pulley is rotatably connected to one end of the connecting rod 54. The pulley abuts against one side of the sliding protrusion 61. An electric push rod 6 is fixedly connected to the top of the processing table 1. The telescopic end of the electric push rod 6 is fixedly connected to the top of the sliding protrusion 61. By activating the electric push rod 6, the sliding protrusion 61 is driven to slide downward. The protruding end of the sliding protrusion 61 presses against the pulley at one end of the connecting rod 54, thereby pushing the cutting blade 5 to slide towards the fixed plate 55. The cutting blade 5 cuts the woven bag.
[0029] Please refer to it again. Figure 1 and Figure 5 The material pulling mechanism includes a swing rod 7 hinged to the bottom of the processing table 1. One end of the swing rod 7 is fixedly connected to a U-shaped frame 8. An iron clamp 81 is slidably connected inside the U-shaped frame 8. A second slide rod 83 is fixedly connected to one side of the iron clamp 81. The second slide rod 83 is slidably connected to the U-shaped frame 8. A second stop plate is fixedly connected to one side of the second slide rod 83. The second stop plate and the U-shaped frame 8 are connected by a tension spring 84. A pair of iron clamps are fixedly connected to one side of the U-shaped frame 8. The electromagnet 82, which is attracted by the woven bag, passes through the slot at the bottom of the processing table 1 and is inserted between the U-shaped frame 8 and the iron clamp 81. When the electromagnet 82 is energized, it generates magnetic force to attract the iron clamp 81, thus clamping the woven bag between the U-shaped frame 8 and the iron clamp 81. When the electromagnet 82 is de-energized, it loses its magnetic force. The rebound of the tension spring 84 causes the iron clamp 81 to slide away from the U-shaped frame 8, thereby releasing the clamping effect on the woven bag.
[0030] Please refer to it again. Figure 1 and Figure 5 The bottom of the sliding protrusion 61 is located directly above the swing rod 7. The top of the swing rod 7 is fixedly connected to the connecting spring 71, and the other end of the connecting spring 71 is fixedly connected to the bottom of the processing table 1. After the sliding protrusion 61 squeezes and cuts, the sliding protrusion 61 continues to descend and pushes the swing rod 7 to flip, so that the woven bag held between the U-shaped frame 8 and the iron clamp 81 is pulled. When the sliding protrusion 61 rises, the swing rod 7 is driven to rotate quickly and reset by the rebound of the connecting spring 71.
[0031] Working principle: The device is installed in a suitable position. A rolled woven bag is inserted between the extrusion roller 3 and the conveyor roller 4. The drive motor 41 is started to drive the conveyor roller 4 to rotate, so that the woven bag clamped between the extrusion roller 3 and the conveyor roller 4 is conveyed. The woven bag passes through the through groove into the bottom of the processing table 1, so that the woven bag passes between the U-shaped frame 8 and the iron clamp 81. The electromagnet 82 is energized to generate magnetic force, so that the iron clamp 81 and the U-shaped frame 8 clamp the woven bag. The electric push rod 6 is started to drive the sliding protrusion 61 to slide downward. The woven bag is squeezed by the inclined surface of the sliding protrusion 61. The pulley at one end of the connecting rod 54 is pressed to push the movable seat 51 to slide towards the fixed plate 55. The cutting blade 5 cuts the woven bag. When the sliding protrusion 61 continues to descend, the bottom of the sliding protrusion 61 presses against the top of the swing rod 7 to push the swing rod 7 to flip, thereby pulling the woven bag clamped between the U-shaped frame 8 and the iron clamp 81 to prevent the woven bag from sticking together after cutting. The electromagnet 82 is de-energized to make it lose its magnetic force. The rebound of the tension spring 84 causes the iron clamp 81 to slide away from the U-shaped frame 8, releasing the clamp on the woven bag.
[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A modified polyethylene plastic woven bag cutting device, comprising a processing table (1), characterized in that: The processing table (1) is provided with a material feeding mechanism, a cutting mechanism and a material pulling mechanism. The material feeding mechanism includes two fixed seats (2) fixed on the top of the processing table (1). A squeezing roller (3) and a conveying roller (4) are rotatably connected between the two fixed seats (2). The cutting mechanism includes a movable seat (51) sliding on the top of the processing table (1). A fixed plate (55) is fixedly connected to the top of the processing table (1). A cutting blade (5) is fixedly connected to one side of the movable seat (51). A through slot is opened on the top of the processing table (1). The material pulling mechanism includes a swing rod (7) hinged to the bottom of the processing table (1). A U-shaped frame (8) is fixedly connected to one end of the swing rod (7). An iron clamp (81) is slidably connected inside the U-shaped frame (8). An electromagnet (82) that attracts the iron clamp (81) is fixedly connected to one side of the U-shaped frame (8).
2. The modified polyethylene plastic woven bag cutting equipment according to claim 1, characterized in that: The fixed base (2) is provided with a side slide groove (21), and a side slide block (31) is slidably connected inside the side slide groove (21). The extrusion roller (3) is rotatably connected between the two side slide blocks (31). A first compression spring (22) is fixedly connected to one side of the side slide block (31). A drive motor (41) for driving the conveying roller (4) to rotate is fixedly connected to the fixed base (2).
3. The modified polyethylene plastic woven bag cutting equipment according to claim 1, characterized in that: A fixed block is fixedly connected to the top of the processing table (1), and a first slide rod (52) is slidably connected inside the fixed block. The movable seat (51) is fixedly connected to one end of the first slide rod (52), and a baffle is fixedly connected to the other end of the first slide rod (52). A second compression spring (53) is sleeved on the first slide rod (52).
4. The modified polyethylene plastic woven bag cutting equipment according to claim 1, characterized in that: The processing table (1) has a through groove on its top, and a sliding protrusion (61) slides inside the through groove. A connecting rod (54) is fixedly connected to one side of the movable seat (51). The sliding protrusion (61) abuts against one end of the connecting rod (54). An electric push rod (6) is fixedly connected to the top of the processing table (1). The telescopic end of the electric push rod (6) is fixedly connected to the top of the sliding protrusion (61).
5. The modified polyethylene plastic woven bag cutting equipment according to claim 1, characterized in that: A second slide rod (83) is fixedly connected to one side of the iron clamp (81). The second slide rod (83) is slidably connected to the U-shaped frame (8). A second baffle is fixedly connected to one side of the second slide rod (83). The second baffle is connected to the U-shaped frame (8) by a tension spring (84).
6. The modified polyethylene plastic woven bag cutting device according to claim 4, characterized in that: The bottom of the sliding protrusion (61) is located directly above the swing rod (7), and a connecting spring (71) is fixedly connected to the top of the swing rod (7). The other end of the connecting spring (71) is fixedly connected to the bottom of the processing table (1).
7. The modified polyethylene plastic woven bag cutting equipment according to claim 4, characterized in that: One end of the connecting rod (54) is rotatably connected to a pulley, and the pulley abuts against one side of the sliding protrusion (61).