Cutting machine for polypropylene woven bag
By designing easily detachable cutting machine components, the problems of existing woven bag cutting devices being unable to adjust width and having messy winding have been solved, achieving efficient cutting and simplifying tool replacement, thus improving operational convenience and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-04-14
AI Technical Summary
Existing woven bag cutting devices cannot cut to the required width. After cutting, the woven bag rolls are messy and difficult to separate and rewind, resulting in a heavy workload for workers, which is time-consuming and labor-intensive. The cutting blades are also inconvenient to disassemble.
A cutting machine for polypropylene woven bags was designed, employing easily disassembled components including a hydraulic cylinder, a moving plate, a clamping rod, a transmission rod, a cutting blade, and a take-up roller. The hydraulic cylinder drives the moving plate to move the clamping rod and the transmission rod, and the clamping block is adjusted in conjunction with an electric telescopic rod, thereby realizing the adjustment of the cutting width and the timely take-up of the take-up roller, simplifying the disassembly process of the cutting blade.
It enables cutting to the required width, prevents woven bag rolls from becoming tangled, reduces worker operation time, simplifies the cutting blade replacement process, and improves cutting efficiency and convenience.
Smart Images

Figure CN224116872U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of woven bag cutting technology, and in particular to a cutting machine for polypropylene woven bags. Background Technology
[0002] Woven bags, also known as snake-skin bags, are a type of plastic bag used for packaging. They are generally made of various chemical plastics such as polyethylene and polypropylene. Woven bags are usually white or off-white in color, non-toxic and odorless, and generally have little harm to the human body. Although they are made of various chemical plastics, they are relatively environmentally friendly and have a high recycling rate. During the production process of woven bags, the semi-finished products usually need to be cut to facilitate subsequent processing into usable woven bags.
[0003] A patent with publication number CN219044175U discloses a cutting device for woven bag production. This patent includes a cutting machine, a cutting blade holder, a heat-breaking mechanism, an electric push rod, a tail plate, a tray, a temperature controller, a pressure knife, a side seat, a temperature measuring head, a locking buckle, and a heating tube. By incorporating a heat-breaking mechanism at the cutting machine, when the semi-finished woven bag is continuously fed from behind the cutting machine and cut by the cutting blade, resulting in incomplete filament breakage, the heated pressure knife of the heat-breaking mechanism can press down to break the filaments and then rise again. This melts and breaks the unbroken filaments at the cutting machine, completing the compensatory cutting of the woven bag at the cutting machine. This avoids the tedious manual cutting of unbroken filaments by workers, which increases their workload. However, this patent also has the following problems:
[0004] The aforementioned woven bag cutting device cannot cut to the required width during use, and cannot be separated and rolled up in time after cutting, which easily leads to a messy woven bag roll after cutting. This increases the workload for workers and is also time-consuming and labor-intensive. It is also inconvenient to operate, and the cutting blade is difficult to disassemble.
[0005] To address the above problems, a cutting machine for polypropylene woven bags needs to be designed to overcome them. Utility Model Content
[0006] The main objective of this invention is to provide a cutting machine for polypropylene woven bags, which can effectively solve the problems in the background art.
[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0008] A cutting machine for polypropylene woven bags includes a cutting machine body, and an easy-to-disassemble component is provided on the upper side of the cutting machine body;
[0009] The easily detachable component includes slides on both sides of the cutting machine body. A connecting rod is embedded inside the slide, a connecting block is located in the middle of the connecting rod, a hydraulic cylinder is mounted on the upper outer wall of the connecting block, a moving plate is located above the hydraulic cylinder, and a clamping rod is located above the moving plate. One end of the connecting rod is connected to a transmission rod, and a cutting blade is mounted on the outer wall of the transmission rod. A mounting bracket is located near the slide, and guide rods are mounted in the middle of the mounting bracket. There are two sets of guide rods, and a clamping rod is mounted in the middle of the two sets of guide rods. The machine includes a lead screw, an outer wall with a movable block, a guide rod with a concave movable block on its outer wall, a motor connected to one end of the lead screw through a mounting frame, a connecting cylinder on one side of the concave movable block, an electric telescopic rod on the inner side of the connecting cylinder, an arc-shaped clamping block at one end of the electric telescopic rod, a roller with a cutting groove mounted near the lower side of the cutting blade, and a first take-up roller and a second take-up roller mounted side-by-side on one side of the main body of the cutting machine near the side of the roller with the cutting groove.
[0010] As a preferred embodiment of this utility model, a roller is installed on the same side of the cutting machine body and the second winding roller, and a woven bag roll is arranged near the roller.
[0011] As a preferred embodiment of this utility model, the number of rollers installed is several sets, and the number of arc-shaped clamping blocks is two sets.
[0012] As a preferred embodiment of this utility model, the first take-up roller is detachably installed with respect to the main body of the cutting machine, the second take-up roller is detachably installed with respect to the main body of the cutting machine, and the roller with the cutting groove is detachably installed with respect to the main body of the cutting machine.
[0013] As a preferred embodiment of this utility model, the transmission rod is detachably installed with respect to the cutting blade, the transmission rod is detachably installed with respect to the main body of the cutting machine, the transmission rod is fixedly connected with respect to the connecting rod, and the connecting rod is rotatably connected with respect to the connecting block through a bearing.
[0014] As a preferred embodiment of this utility model, the connecting block is fixedly connected to the hydraulic cylinder, the moving plate is fixedly connected to the hydraulic cylinder, the clamping rod is fixedly connected to the moving plate, the mounting frame is fixedly installed to the main body of the cutting machine, the guide rod is fixedly connected to the mounting frame, and the lead screw is rotatably connected to the mounting frame through a bearing.
[0015] As a preferred embodiment of this utility model, the output end of the motor is fixedly connected to the lead screw via a coupling, the moving block is threadedly connected to the lead screw, the concave moving block is fixedly connected to the moving block, the concave moving block is slidably connected to the guide rod, the connecting cylinder is fixedly connected to the concave moving block, the electric telescopic rod is fixedly connected to the connecting cylinder, and the arc-shaped clamping block is fixedly connected to the electric telescopic rod.
[0016] Beneficial effects
[0017] Compared with the prior art, the present invention has the following beneficial effects:
[0018] In this invention, a cutting machine for polypropylene woven bags is designed. A concave moving block drives the connecting cylinder for height adjustment, and an electric telescopic rod drives the arc-shaped clamping block for clamping adjustment. When disassembling the transmission rod, adjusting it drives the clamping rod to move upward, achieving the effect of easy disassembly. A roller with a cutting groove provides a cutting limit effect, and the first and second winding rollers promptly wind up woven bag rolls of different widths, preventing the cut woven bag rolls from becoming messy and saving cutting time. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the main body of the cutting machine of this utility model;
[0020] Figure 2 This is a structural schematic diagram of part A of this utility model;
[0021] Figure 3 This is a schematic diagram of the transmission rod and hydraulic cylinder of this utility model.
[0022] In the diagram: 1. Main body of the cutting machine; 2. Woven bag roll; 3. Roller; 4. First take-up roller; 5. Second take-up roller; 6. Easy-to-disassemble component; 7. Roller with cutting groove; 8. Transmission rod; 9. Cutting knife; 10. Slide groove; 11. Moving plate; 12. Clamping rod; 13. Mounting frame; 14. Guide rod; 15. Lead screw; 16. Concave moving block; 17. Moving block; 18. Motor; 19. Connecting cylinder; 20. Electric telescopic rod; 21. Arc-shaped clamping block; 22. Connecting rod; 23. Connecting block; 24. Hydraulic cylinder. Detailed Implementation
[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0024] like Figure 1-3 As shown, a cutting machine for polypropylene woven bags includes a cutting machine body 1, and a disassembly assembly 6 is provided on the upper side of the cutting machine body 1.
[0025] The easily detachable component 6 includes slide grooves 10 on both sides of the main body 1 of the cutting machine. A connecting rod 22 is embedded inside the slide groove 10. A connecting block 23 is located in the middle of the connecting rod 22. A hydraulic cylinder 24 is mounted on the upper outer wall of the connecting block 23. A moving plate 11 is located above the hydraulic cylinder 24. A clamping rod 12 is located on the upper side of the moving plate 11. One end of the connecting rod 22 is connected to a transmission rod 8. A cutting blade 9 is mounted on the outer wall of the transmission rod 8. A mounting bracket 13 is located near the slide groove 10. Two sets of guide rods 14 are mounted in the middle of the mounting bracket 13. A wire is mounted in the middle of each set of guide rods 14. The outer wall of the rod 15 and the lead screw 15 is provided with a moving block 17. The outer wall of the guide rod 14 is provided with a concave moving block 16. One end of the lead screw 15 passes through the mounting frame 13 and is connected to a motor 18. A connecting cylinder 19 is provided on one side of the concave moving block 16. An electric telescopic rod 20 is provided on the inner side of the connecting cylinder 19. An arc-shaped clamping block 21 is provided on one end of the electric telescopic rod 20. A roller 7 with a cutting groove is installed near the lower side of the cutting blade 9. A first take-up roller 4 and a second take-up roller 5 are provided near the side of the roller 7 with the cutting groove. The first take-up roller 4 and the second take-up roller 5 are installed side by side on one side of the main body 1 of the cutting machine.
[0026] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3 As shown, rollers 3 are installed on the same side of the cutting machine body 1 and the second take-up roller 5. Woven bag rolls 2 are located near rollers 3. Several sets of rollers 3 are installed. Two sets of arc-shaped clamping blocks 21 are installed. The first take-up roller 4 and the second take-up roller 5 are detachably installed. The roller 7 with cutting grooves is detachably installed. The transmission rod 8 and the cutting blade 9 are detachably installed. The transmission rod 8 and the cutting machine body 1 are detachably installed. The transmission rod 8 is fixedly connected to the connecting rod 22. The connecting rod 22 and the connecting block 23 are rotatably connected via bearings. The connecting block 23 is fixedly connected to the hydraulic cylinder 24. The moving plate 11 and... Hydraulic cylinders 24 are fixedly connected to each other; clamping rod 12 is fixedly connected to moving plate 11; mounting frame 13 is fixedly installed to cutting machine body 1; guide rod 14 is fixedly connected to mounting frame 13; lead screw 15 is rotatably connected to mounting frame 13 through bearing; output end of motor 18 is fixedly connected to lead screw 15 through coupling; moving block 17 is threadedly connected to lead screw 15; concave moving block 16 is fixedly connected to moving block 17; concave moving block 16 is slidably connected to guide rod 14; connecting cylinder 19 is fixedly connected to concave moving block 16; electric telescopic rod 20 is fixedly connected to connecting cylinder 19; arc-shaped clamping block 21 is fixedly connected to electric telescopic rod 20.
[0027] The hydraulic cylinder 24 supports the movable plate 11. The arc-shaped clamping block 21 can be adjusted by extending and retracting the electric telescopic rod 20 to control the clamping tightness. The movable block 17 is fixedly connected to the concave movable block 16, which facilitates the sliding of the concave movable block 16 to the outer wall of the guide rod 14 and the movement of the movable block 17 to the outer wall of the lead screw 15.
[0028] The working process of this utility model is as follows: When the polypropylene woven bag cutting machine designed in this scheme is in operation, the main body 1 of the cutting machine is started, and the woven bag roll 2 is conveyed by several sets of rollers 3. The cutting blade 9 cuts the bag to the required width. During cutting, the grooves of the rollers 7 with cutting grooves limit the cutting and prevent deviation. After cutting, the first winding roller 4 and the second winding roller 5 promptly rewind the bag to prevent it from falling into the workshop and affecting the cutting effect. Furthermore, the cutting blade 9 needs to be disassembled after a period of use. During disassembly and replacement, the motor 18 drives the lead screw 15 to rotate, and the guide rod 14 assists in moving the moving block 17 through the sliding engagement of the concave moving block 16, thereby moving the connecting cylinder 19 on one side of the concave moving block 16 downward. The external controller controls the extension and retraction of the electric telescopic rod 20, which drives the arc-shaped clamping block 21 to clamp onto the outer wall of the clamping rod 12, thereby driving the transmission rod 8 upward and removing it from the main body 1 of the cutting machine. People then replace the cutting blade 9. The operation is simple and convenient for people to cut the woven bag roll 2 to the required width.
[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A cutting machine for polypropylene woven bags, comprising a cutting machine body (1), characterized in that: The upper side of the main body (1) of the cutting machine is provided with a component (6) that is easy to disassemble. The easily detachable component (6) includes a slide groove (10) on both sides of the main body (1) of the cutting machine. A connecting rod (22) is embedded inside the slide groove (10). A connecting block (23) is provided in the middle of the connecting rod (22). A hydraulic cylinder (24) is provided on the upper outer wall of the connecting block (23). A moving plate (11) is provided on the upper side of the hydraulic cylinder (24). A clamping rod (12) is provided on the upper side of the moving plate (11). A transmission rod (8) is connected to one end of the connecting rod (22). A cutting blade (9) is installed on the outer wall of the transmission rod (8). A mounting bracket (13) is provided on the side near the slide groove (10). A guide rod (14) is installed in the middle of the mounting bracket (13). There are two sets of guide rods (14). A lead screw (15) is installed on the part of the machine. A moving block (17) is provided on the outer wall of the lead screw (15). A concave moving block (16) is provided on the outer wall of the guide rod (14). One end of the lead screw (15) passes through the mounting frame (13) and is connected to a motor (18). A connecting cylinder (19) is provided on one side of the concave moving block (16). An electric telescopic rod (20) is provided on the inner side of the connecting cylinder (19). An arc-shaped clamping block (21) is provided on one end of the electric telescopic rod (20). A roller (7) with a cutting groove is installed near the lower side of the cutting blade (9). A first take-up roller (4) and a second take-up roller (5) are provided near the side of the roller (7) with the cutting groove. The first take-up roller (4) and the second take-up roller (5) are installed side by side on one side of the main body of the cutting machine (1).
2. The cutting machine for polypropylene woven bags according to claim 1, characterized in that: The main body (1) of the cutting machine is equipped with a roller (3) on the same side as the second winding roller (5), and a woven bag roll (2) is arranged near the roller (3).
3. The cutting machine for polypropylene woven bags according to claim 1, characterized in that: The number of rollers (3) installed is several sets, and the number of arc-shaped clamping blocks (21) is two sets.
4. The cutting machine for polypropylene woven bags according to claim 1, characterized in that: The first take-up roller (4) is detachably installed between the cutter body (1), the second take-up roller (5) is detachably installed between the cutter body (1), and the roller (7) with the cutting groove is detachably installed between the cutter body (1).
5. A cutting machine for polypropylene woven bags according to claim 1, characterized in that: The transmission rod (8) is detachably installed between the cutting blade (9) and the main body (1) of the cutting machine. The transmission rod (8) is fixedly connected to the connecting rod (22). The connecting rod (22) is rotatably connected to the connecting block (23) through a bearing.
6. A cutting machine for polypropylene woven bags according to claim 1, characterized in that: The connecting block (23) is fixedly connected to the hydraulic cylinder (24), the moving plate (11) is fixedly connected to the hydraulic cylinder (24), the clamping rod (12) is fixedly connected to the moving plate (11), the mounting frame (13) is fixedly installed to the cutting machine body (1), the guide rod (14) is fixedly connected to the mounting frame (13), and the lead screw (15) is rotatably connected to the mounting frame (13) through a bearing.
7. A cutting machine for polypropylene woven bags according to claim 1, characterized in that: The output end of the motor (18) is fixedly connected to the lead screw (15) via a coupling. The moving block (17) is threadedly connected to the lead screw (15). The concave moving block (16) is fixedly connected to the moving block (17). The concave moving block (16) is slidably connected to the guide rod (14). The connecting cylinder (19) is fixedly connected to the concave moving block (16). The electric telescopic rod (20) is fixedly connected to the connecting cylinder (19). The arc-shaped clamping block (21) is fixedly connected to the electric telescopic rod (20).
Citation Information
Patent Citations
Cutting device for woven bag production
CN219044175U