Edge cutting device for plastic woven bag production

By introducing an adjustment mechanism and a cutting mechanism into the plastic woven bag cutting device, the problems of limit guidance and tension adjustment are solved, the cutting accuracy and efficiency are improved, and the cutting needs of woven bags of different specifications are met.

CN224256205UActive Publication Date: 2026-05-19LIAONING XIANGTAI PLASTICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LIAONING XIANGTAI PLASTICS CO LTD
Filing Date
2025-04-24
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing plastic woven bag edge cutting devices cannot quickly and easily limit and guide movement and adjust tension, which makes it easy for deviation and errors to occur during edge cutting, reducing work efficiency.

Method used

An edge-cutting device for producing plastic woven bags, including an adjustment mechanism and an edge-cutting mechanism, was designed. The device enables rapid adjustment of the pressure roller and tension roller through components such as an electric telescopic rod and a threaded rod. Combined with the position adjustment of the edge-cutting knife, it ensures the accurate orientation and tension of the plastic woven bag.

Benefits of technology

It enables quick and convenient positioning and tension adjustment of plastic woven bags, improves the accuracy and efficiency of edge cutting, and adapts to the edge cutting needs of woven bags of different widths and thicknesses.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of plastic woven bag production, and particularly relates to an edge cutting device for plastic woven bag production, which comprises a bottom plate and supporting legs, an edge cutting structure is arranged above the bottom plate, and the edge cutting structure comprises an adjusting mechanism and an edge cutting mechanism. The adjusting mechanism comprises a mounting frame, a conveying roller, a first electric telescopic rod, a moving plate and a first guide rod, and the inner side of the mounting frame is rotationally connected with the two ends of the conveying roller. According to the edge cutting device for plastic woven bag production, the position of a pressing roller can be rapidly and conveniently adjusted, then the plastic woven bag can be better limited and guided, the position of a tensioning roller can be rapidly and conveniently adjusted, and the problem that the plastic woven bag cannot be rapidly and conveniently limited and guided is solved. The plastic woven bag edge cutting device solves the problems that deviation is prone to occurring in the edge cutting process, the tension degree of a plastic woven bag cannot be rapidly and conveniently adjusted, and errors are prone to occurring in the edge cutting process, and the working efficiency of the edge cutting device is improved.
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Description

Technical Field

[0001] This utility model relates to the field of plastic woven bag production technology, specifically to a cutting device for plastic woven bag production. Background Technology

[0002] Plastic woven bags are classified by their main material composition as polypropylene bags and polyethylene bags; and by their sewing method as sewn-bottom bags and sewn-side-bottom bags. They are currently widely used as packaging materials for fertilizers, chemical products, and other items. The main production process involves extruding plastic raw materials into film, cutting, and unidirectionally stretching them into flat filaments, which are then woven together to produce the product, generally called a woven bag. During the production of plastic woven bags, an edge-cutting device is required for edge trimming.

[0003] Existing edge-cutting devices typically transport plastic woven bags via conveyor rollers and cut them with an edge-cutting blade. However, in actual use, it is not possible to quickly and easily guide the plastic woven bags, which can easily lead to deviation during edge cutting. Furthermore, it is not possible to quickly and easily adjust the tension of the plastic woven bags, resulting in errors in edge cutting and reducing the working efficiency of the edge-cutting device.

[0004] Therefore, we urgently need to provide a cutting device for the production of plastic woven bags. Utility Model Content

[0005] The purpose of this invention is to provide a cutting device for producing plastic woven bags, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cutting device for producing plastic woven bags, comprising a base plate and supporting legs, wherein a cutting structure is provided above the base plate;

[0007] The cutting structure includes an adjustment mechanism and a cutting mechanism;

[0008] The adjusting mechanism includes a mounting frame, a conveying roller, an electric telescopic rod, a movable plate, and a guide rod. The inner side of the mounting frame is rotatably connected to both ends of the conveying roller. The top of the base plate is connected to the bottom of the electric telescopic rod. The top of the electric telescopic rod is connected to the bottom of the movable plate. The inner wall of the movable plate is slidably connected to the outer wall of the guide rod. A pressure roller is rotatably connected to one end of the movable plate. A guide plate is fixedly installed on the inner wall of the mounting frame. A sliding plate is slidably connected to the inner side of the guide plate. A mounting plate is fixedly installed at one end of the sliding plate. A tensioning roller is rotatably connected to the inner side of the mounting plate. A threaded rod is rotatably connected to the top of the mounting plate.

[0009] A further improvement is that there are two conveying rollers, which are symmetrically distributed inside the mounting frame. A movable groove is provided on one side of the mounting frame, and the outer wall of the movable plate is slidably connected to the inner wall of the movable groove, so that the position of the pressing roller can be adjusted quickly and conveniently, thereby better limiting and guiding the plastic woven bag.

[0010] A further improvement is that there are two pressing rollers, which are symmetrically distributed above the two conveying rollers, and four guide plates, which are symmetrically distributed on the inner wall of the mounting frame. This allows for quick and convenient adjustment of the tension of the plastic woven bag, thereby enabling better edge trimming.

[0011] A further improvement is that a sliding groove is provided on one side of the guide plate, and one end of the sliding plate is slidably connected to the inner wall of the sliding groove. There are two tension rollers, which are symmetrically distributed on the inner wall of the mounting frame. This allows for quick and convenient adjustment of the height of the tension rollers, thereby enabling quick and convenient adjustment of the tension of the plastic woven bag.

[0012] A further improvement is that the trimming mechanism includes a second electric telescopic rod, a fixed plate, a telescopic rod, a second guide rod, and an adjusting plate. The bottom of the second electric telescopic rod is connected to the top of the fixed plate, the top of the fixed plate is connected to the bottom of the telescopic rod, the inner wall of the fixed plate is connected to both ends of the second guide rod, the outer wall of the second guide rod is slidably connected to the inner wall of the adjusting plate, a trimming blade is fixedly installed at the bottom of the adjusting plate, a fixing bolt is threadedly connected to the inner wall of the adjusting plate, and a limit plate is threadedly connected to the top of the fixing bolt.

[0013] A further improvement is that there are two telescopic rods, which are symmetrically distributed on the top of the fixed plate. The adjusting plate is T-shaped. There are two cutting blades, which are symmetrically distributed below the fixed plate. The bottom of the limiting plate has an adjustment hole. The top of the fixing bolt is threaded to the inner wall of the adjustment hole, so that the position of the cutting blade can be quickly and conveniently adjusted, thereby enabling better cutting of plastic woven bags of different widths.

[0014] A further improvement is that the bottom of the base plate is connected to the top of the support leg, the top of the base plate is connected to the bottom of the mounting frame, and the inner wall of the mounting frame is connected to the outer wall of the electric telescopic rod.

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

[0016] 1. This edge-cutting device for producing plastic woven bags, through the installation of an adjustment mechanism, enables quick and convenient adjustment of the position of the pressure roller, thereby better limiting and guiding the plastic woven bag, and also enables quick and convenient adjustment of the position of the tension roller, thereby quickly and conveniently adjusting the tension of the plastic woven bag. This improves the edge-cutting efficiency and solves the problems of not being able to quickly and conveniently limit and guide the plastic woven bag, which easily leads to deviation during edge cutting, and not being able to quickly and conveniently adjust the tension of the plastic woven bag, which easily leads to errors during edge cutting.

[0017] 2. This edge-cutting device for producing plastic woven bags enables quick and convenient adjustment of the height and position of the edge-cutting blade through the edge-cutting mechanism, thereby better enabling the edge-cutting of plastic woven bags of different widths, thus improving its usability and significantly enhancing the convenience of the edge-cutting device. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0020] Figure 3 This is a partial structural schematic diagram of the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of the adjustment mechanism of this utility model. Figure 1 ;

[0022] Figure 5 This is a schematic diagram of the structure of the adjustment mechanism of this utility model. Figure 2 ;

[0023] Figure 6 This is a schematic diagram of the edge-cutting mechanism of this utility model. Figure 1 ;

[0024] Figure 7 This is a schematic diagram of the edge-cutting mechanism of this utility model. Figure 2 ;

[0025] Figure 8 This is a schematic diagram of the edge-cutting mechanism of this utility model. Figure 3 .

[0026] In the diagram: 1. Base plate; 2. Support leg; 3. Adjustment mechanism; 301. Mounting frame; 302. Conveying roller; 303. Electric telescopic rod one; 304. Moving plate; 305. Guide rod one; 306. Pressure roller; 307. Guide plate; 308. Sliding plate; 309. Mounting plate; 310. Tensioning roller; 311. Threaded rod; 4. Edge trimming mechanism; 401. Electric telescopic rod two; 402. Fixing plate; 403. Telescopic rod; 404. Guide rod two; 405. Adjustment plate; 406. Edge trimming knife; 407. Fixing bolt; 408. Limiting plate. Detailed Implementation

[0027] 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.

[0028] Example 1:

[0029] Because it's difficult to quickly and easily guide the plastic woven bag, which can easily lead to misalignment during edge cutting, please refer to [the relevant documentation / reference]. Figures 1-8 This utility model provides a technical solution:

[0030] A cutting device for producing plastic woven bags includes a base plate 1 and a support leg 2, with a cutting structure provided above the base plate 1;

[0031] The trimming structure includes an adjustment mechanism 3 and a trimming mechanism 4;

[0032] The adjusting mechanism 3 includes a mounting frame 301, a conveying roller 302, an electric telescopic rod 303, a movable plate 304, and a guide rod 305. The inner side of the mounting frame 301 is rotatably connected to both ends of the conveying roller 302. The top of the base plate 1 is connected to the bottom of the electric telescopic rod 303. The top of the electric telescopic rod 303 is connected to the bottom of the movable plate 304. The inner wall of the movable plate 304 is slidably connected to the outer wall of the guide rod 305. A pressure roller 306 is rotatably connected to one end of the movable plate 304. A guide plate 307 is fixedly installed on the inner wall of the mounting frame 301. A sliding plate 308 is slidably connected to the inner side of the guide plate 307. A mounting plate 309 is fixedly installed at one end of the sliding plate 308. A tension roller 310 is rotatably connected to the inner side of the mounting plate 309. A threaded rod 311 is rotatably connected to the top of the mounting plate 309.

[0033] In this embodiment, there are two conveying rollers 302, which are symmetrically distributed inside the mounting frame 301. A movable groove is provided on one side of the mounting frame 301, and the outer wall of the movable plate 304 is slidably connected to the inner wall of the movable groove, so that the position of the pressing roller 306 can be quickly and conveniently adjusted, thereby better limiting and guiding the plastic woven bag.

[0034] Furthermore, there are two pressure rollers 306, which are symmetrically distributed above the two conveying rollers 302. There are four guide plates 307, which are symmetrically distributed on the inner wall of the mounting frame 301. This allows for quick and convenient adjustment of the tension of the plastic woven bag, thereby enabling better edge trimming.

[0035] Furthermore, a sliding groove is provided on one side of the guide plate 307, and one end of the sliding plate 308 is slidably connected to the inner wall of the sliding groove. There are two tension rollers 310, which are symmetrically distributed on the inner wall of the mounting frame 301, so that the height of the tension rollers 310 can be quickly and conveniently adjusted, thereby quickly and conveniently adjusting the tension of the plastic woven bag.

[0036] When it is necessary to trim the edges of the plastic woven bags, the operator passes the plastic woven bags sequentially through the mounting frame 301, conveyor roller 302, and tension roller 310 for trimming. The conveyor roller 302 transports the plastic woven bags. When it is necessary to limit and guide the plastic woven bags, the electric telescopic rod 303 is activated, causing the moving plate 304 to slide on the guide rod 305. The sliding of the moving plate 304 causes the pressure roller 306 to move, thereby allowing the pressure roller 306 to contact the plastic woven bags, thus limiting and guiding the plastic woven bags, and also allowing different... The thick plastic woven bag is limited and guided. When it is necessary to adjust the tension of the plastic woven bag, the threaded rod 311 is rotated to move it inside the mounting frame 301. The movement of the threaded rod 311 drives the mounting plate 309 to move. The movement of the mounting plate 309 drives the sliding plate 308 to slide on the inner wall of the guide plate 307. The movement of the mounting plate 309 can drive the tension roller 310 to move. The movement of the tension roller 310 can contact the plastic woven bag, thereby quickly and conveniently adjusting the tension of the plastic woven bag, thus enabling better edge cutting and better use.

[0037] Example 2:

[0038] In order to quickly and conveniently adjust the height and position of the cutting blade, so as to better cut the edges of plastic woven bags of different widths, based on Embodiment 1, the cutting mechanism 4 includes an electric telescopic rod 401, a fixed plate 402, a telescopic rod 403, a guide rod 404, and an adjusting plate 405. The bottom of the electric telescopic rod 401 is connected to the top of the fixed plate 402, the top of the fixed plate 402 is connected to the bottom of the telescopic rod 403, the inner wall of the fixed plate 402 is connected to both ends of the guide rod 404, the outer wall of the guide rod 404 is slidably connected to the inner wall of the adjusting plate 405, the cutting blade 406 is fixedly installed at the bottom of the adjusting plate 405, the inner wall of the adjusting plate 405 is threadedly connected to a fixing bolt 407, and the top of the fixing bolt 407 is threadedly connected to a limit plate 408.

[0039] In this embodiment, there are two telescopic rods 403, which are symmetrically distributed on the top of the fixed plate 402. The adjusting plate 405 is T-shaped. There are two cutting blades 406, which are symmetrically distributed below the fixed plate 402. The bottom of the limiting plate 408 has an adjustment hole. The top of the fixing bolt 407 is threaded to the inner wall of the adjustment hole, so that the position of the cutting blades 406 can be quickly and conveniently adjusted, thereby enabling better cutting of plastic woven bags of different widths.

[0040] Furthermore, the bottom of the base plate 1 is connected to the top of the support leg 2, the top of the base plate 1 is connected to the bottom of the mounting bracket 301, and the inner wall of the mounting bracket 301 is connected to the outer wall of the electric telescopic rod 401.

[0041] When it is necessary to trim the edges of a plastic woven bag, the operator passes the bag through the mounting frame 301, conveyor roller 302, and tension roller 310 in sequence for trimming. The conveyor roller 302 transports the bag, and the adjusting mechanism 3 can quickly and easily guide and limit the bag's movement, as well as adjust its tension for better trimming. When trimming is required, the electric telescopic rod 401 is activated, moving the fixed plate 402. The movement of the fixed plate 402 causes the telescopic rod 403 to extend and retract. The movement of the fixed plate 402 indirectly drives... The cutting blade 406 moves, allowing it to contact the plastic woven bag and cut its edges. When cutting plastic woven bags of different widths, the fixing bolt 407 is rotated to move it within the adjusting plate 405. The movement of the fixing bolt 407 allows it to be pulled out from the limiting plate 408, thus releasing the limiting fixation of the adjusting plate 405. This allows the adjusting plate 405 to slide within the guide rod 404. The sliding of the adjusting plate 405 drives the cutting blade 406 to move, enabling quick and convenient adjustment of the cutting blade 406's position and allowing for cutting of plastic woven bags of different widths.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A cutting device for producing plastic woven bags, comprising a base plate (1) and supporting legs (2), characterized in that: A slit structure is provided above the base plate (1); The edge-cutting structure includes an adjustment mechanism (3) and an edge-cutting mechanism (4); The adjusting mechanism (3) includes a mounting frame (301), a conveying roller (302), an electric telescopic rod (303), a moving plate (304), and a guide rod (305). The inner side of the mounting frame (301) is rotatably connected to both ends of the conveying roller (302). The top of the base plate (1) is connected to the bottom of the electric telescopic rod (303). The top of the electric telescopic rod (303) is connected to the bottom of the moving plate (304). The inner wall of the moving plate (304) is connected to the guide rod (305). 05) The outer wall is slidably connected. One end of the moving plate (304) is rotatably connected to a pressure roller (306). The inner wall of the mounting frame (301) is fixedly installed with a guide plate (307). The inner side of the guide plate (307) is slidably connected with a sliding plate (308). One end of the sliding plate (308) is fixedly installed with a mounting plate (309). The inner side of the mounting plate (309) is rotatably connected with a tension roller (310). The top of the mounting plate (309) is rotatably connected with a threaded rod (311).

2. The edge-cutting device for producing plastic woven bags according to claim 1, characterized in that: There are two conveying rollers (302), which are symmetrically distributed inside the mounting frame (301). A moving groove is provided on one side of the mounting frame (301), and the outer wall of the moving plate (304) is slidably connected to the inner wall of the moving groove.

3. The edge-cutting device for producing plastic woven bags according to claim 1, characterized in that: There are two pressure rollers (306), which are symmetrically distributed above the two conveying rollers (302). There are four guide plates (307), which are symmetrically distributed on the inner wall of the mounting frame (301).

4. The edge-cutting device for producing plastic woven bags according to claim 1, characterized in that: The guide plate (307) has a sliding groove on one side, and one end of the sliding plate (308) is slidably connected to the inner wall of the sliding groove. There are two tension rollers (310), which are symmetrically distributed on the inner wall of the mounting frame (301).

5. The edge-cutting device for producing plastic woven bags according to claim 1, characterized in that: The trimming mechanism (4) includes an electric telescopic rod (401), a fixed plate (402), a telescopic rod (403), a guide rod (404), and an adjusting plate (405). The bottom of the electric telescopic rod (401) is connected to the top of the fixed plate (402), the top of the fixed plate (402) is connected to the bottom of the telescopic rod (403), the inner wall of the fixed plate (402) is connected to both ends of the guide rod (404), the outer wall of the guide rod (404) is slidably connected to the inner wall of the adjusting plate (405), a trimming blade (406) is fixedly installed at the bottom of the adjusting plate (405), a fixing bolt (407) is threadedly connected to the inner wall of the adjusting plate (405), and a limit plate (408) is threadedly connected to the top of the fixing bolt (407).

6. The edge-cutting device for producing plastic woven bags according to claim 5, characterized in that: There are two telescopic rods (403), which are symmetrically distributed on the top of the fixed plate (402). The adjusting plate (405) is T-shaped. There are two cutting blades (406), which are symmetrically distributed below the fixed plate (402). The bottom of the limiting plate (408) has an adjusting hole, and the top of the fixing bolt (407) is threaded to the inner wall of the adjusting hole.

7. The edge-cutting device for producing plastic woven bags according to claim 1, characterized in that: The bottom of the base plate (1) is connected to the top of the support leg (2), the top of the base plate (1) is connected to the bottom of the mounting frame (301), and the inner wall of the mounting frame (301) is connected to the outer wall of the electric telescopic rod (401).