Multifunctional trimming device for processing plastic woven bags

Abstract

The utility model relates to the technical field of plastic packaging machinery discloses a multifunctional trimming device for plastic woven bag processing, including support frame, transmission component, setting in the support frame, trimming module, setting in the support frame top, including support rotary disc rotation setting in the support frame inside both sides, through double thread screw rod and sliding sleeve cooperation, realize cold, hot cutting knife's synchronous symmetrical adjustment, ensure that the trimming width is accurate and consistent, effectively avoid bag body deviation or waste edge uneven, promote finished product quality and material utilization rate.

Description

Technical Field

[0001] This utility model relates to the field of plastic packaging machinery technology, specifically a multi-functional edge-cutting device for processing plastic woven bags. Background Technology

[0002] In the automated production of plastic woven bags, edge trimming is one of the key pre-processing steps. It is mainly used to trim the rough edges on both sides of the bag, control the width of the finished product, or provide precise edges for subsequent processes such as sewing and inserting. Depending on the material characteristics and product requirements, edge trimming methods are generally divided into two types: cold cutting and hot cutting. Cold cutting is suitable for high-strength polypropylene woven fabrics, producing neat cuts but prone to fraying. Hot cutting, on the other hand, can complete both cutting and sealing simultaneously, preventing fiber loosening, and is widely used for woven bags with inner films or lightweight woven bags.

[0003] However, existing edge-cutting devices generally have the following shortcomings: First, cold-cutting and hot-cutting functions are usually set in two independent mechanisms, and the machine needs to be stopped and the blades disassembled when switching, which is time-consuming and inefficient; Second, the edge-cutting width adjustment mostly relies on manual adjustment of the left and right blade holders, which makes it difficult to ensure symmetry and easily leads to bag deviation or increased scrap rate; Third, there is a lack of reliable quick positioning and locking structure, and the working position of the blade is easily affected by vibration, affecting cutting accuracy and safety. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a multifunctional edge-cutting device for processing plastic woven bags.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a multi-functional edge-cutting device for processing plastic woven bags, comprising a support frame; a transmission component disposed within the support frame; an edge-cutting module disposed at the top of the support frame; and a support rotating disk rotatably disposed on both sides inside the support frame.

[0006] As a further description of the above technical solution:

[0007] The transmission component includes: a first transmission roller, rotatably disposed inside the support frame and located at the bottom of the support rotating disk; and a second transmission roller, rotatably disposed at the bottom end inside the support frame.

[0008] As a further description of the above technical solution:

[0009] The trimming module includes: an adjustment component disposed inside the two sets of support rotating disks; and a switching component disposed on the outer wall of one side of the support frame and located on one side of the set of support rotating disks.

[0010] As a further description of the above technical solution:

[0011] The adjustment assembly includes: a handwheel, rotatably mounted on the outside of the other side of the support frame; a double-threaded screw, rotatably mounted inside the support frame and rotating between two sets of support rotating disks, with one end bolted to the handwheel; three sets of guide posts, each with its two ends fixedly connected to one side of the center of the two sets of support rotating disks; two sets of sliding sleeves, sliding horizontally inside the support frame, with the middle part threaded to both sides of the double-threaded screw, and passed through and slidable by the three sets of guide posts; a cold cutting blade, mounted on one side of the sliding sleeve; and an electrothermal cutting blade, mounted on the other side of the sliding sleeve.

[0012] As a further description of the above technical solution:

[0013] The switching assembly includes: an arc-shaped groove formed on one side of the outer wall of the support frame; a locking groove formed on one side of the outer wall of the support frame and located on both sides of the arc-shaped groove; a sliding post disposed on one side of a set of supporting rotating disks and sliding inside the arc-shaped groove; a locking shell sleeved on the outside of the sliding post and sliding against the outer wall of the support frame on one side; a locking sleeve sleeved on the outside of the sliding post and sliding inside the locking shell, with one end inserted into the locking groove; a lever block disposed on the outer wall of the locking sleeve; and a compression spring sleeved on the outside of the sliding post and disposed inside the locking shell, with one end fixedly connected to the other end of the locking sleeve.

[0014] As a further description of the above technical solution:

[0015] The lever is provided in four sets and is arranged around the outer wall of the locking head.

[0016] As a further description of the above technical solution:

[0017] The locking housing has sliding grooves on its four outer walls, and the lever slides within the sliding grooves of the locking housing.

[0018] This utility model has the following beneficial effects:

[0019] 1. By using a double-threaded screw and a sliding sleeve, the cold and hot cutting blades can be adjusted synchronously and symmetrically to ensure that the cutting edge width is accurate and consistent, effectively avoiding bag body deviation or uneven waste edges, and improving the quality of finished products and material utilization.

[0020] 2. By adopting a rotary quick-change structure, the switching between cold cutting and hot cutting modes can be completed simply by sliding the lever and rotating the support plate 90 degrees. The spring locking mechanism automatically positions and locks the equipment, eliminating the need for tool disassembly and improving equipment flexibility and production efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a multifunctional edge-cutting device for processing plastic woven bags proposed in this utility model.

[0022] Figure 2 This is a half-sectional schematic diagram of the support frame of a multifunctional edge-cutting device for processing plastic woven bags proposed in this utility model.

[0023] Figure 3 This is an overall side view of a multifunctional edge-cutting device for processing plastic woven bags proposed in this utility model;

[0024] Figure 4 This is a partially enlarged schematic diagram of the cutting module of a multifunctional cutting device for processing plastic woven bags proposed in this utility model;

[0025] Figure 5 This utility model proposes a multifunctional edge-cutting device for processing plastic woven bags. Figure 4 Enlarged view at point A.

[0026] Legend:

[0027] 1. Support frame; 2. Transmission assembly; 21. First transmission roller; 22. Second transmission roller; 3. Edge cutting module; 31. Support rotating disk; 32. Adjustment assembly; 321. Handwheel; 322. Double threaded screw; 323. Guide post; 324. Sliding sleeve; 325. Cold cutting blade; 326. Electrothermal cutting blade; 33. Switching assembly; 331. Arc groove; 332. Locking groove; 333. Sliding post; 334. Locking housing; 335. Locking sleeve; 336. Prying block; 337. Compression spring. Detailed Implementation

[0028] 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.

[0029] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The utility model will be further described in detail below with reference to the accompanying drawings.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] Example 1:

[0032] like Figures 1 to 5 As shown, this embodiment provides a multi-functional edge-cutting device for processing plastic woven bags, including: a support frame 1; a transmission component 2 disposed within the support frame 1; an edge-cutting module 3 disposed at the top of the support frame 1; and a support rotating disk 31 rotatably disposed on both sides inside the support frame 1.

[0033] In this embodiment, the adjustment component 32 and the switching component 33 constitute a multifunctional edge-cutting device for processing plastic woven bags according to this application.

[0034] It should also be noted that the plastic woven bags in this application can be ordinary polypropylene woven bags, film-lined composite woven bags, laminated woven bags, etc. Figure 1 In this embodiment, a common polypropylene woven bag is used as an example for description. Of course, other types of plastic woven bags can also adopt a similar structure, which will not be described in detail below.

[0035] It should also be understood that the electrothermal cutting blade 326 and the transmission device were purchased from the market and are common knowledge in the field. They are only used and not modified, so the control method and circuit connection will not be described in detail.

[0036] In this embodiment, the support frame 1 is made of high-strength material to support the entire device. The transmission component 2 is used to transport the plastic woven bags. The trimming module 3 includes a support rotating disk 31 for trimming operations. The plastic woven bags are transported via the transmission component 2, the trimming module 3 performs the trimming operation, the adjustment component 32 adjusts the trimming width, and the switching component 33 switches the trimming mode. This provides a multi-functional trimming capability, ensuring the trimming accuracy and efficiency of the plastic woven bags.

[0037] Specifically, the transmission component 2 includes: a first transmission roller 21, which is rotatably disposed inside the support frame 1 and located at the bottom of the support rotating disk 31; and a second transmission roller 22, which is rotatably disposed at the bottom end inside the support frame 1.

[0038] In this embodiment, the first conveyor roller 21 is a cylindrical structure made of wear-resistant steel and is used to convey uncutable woven plastic bags. The second conveyor roller 22 is a cylindrical structure made of wear-resistant steel and is used to convey cut woven plastic bags. Uncut material is conveyed and rotated by the first conveyor roller 21, while cut material is conveyed to the next process by the second conveyor roller 22. This provides a stable material conveying function, ensuring smooth material transfer before and after cutting.

[0039] Specifically, the edge-cutting module 3 includes: an adjustment component 32, which is disposed inside the two sets of support rotating disks 31; and a switching component 33, which is disposed on the outer wall of one side of the support frame 1 and located on one side of the set of support rotating disks 31.

[0040] In a preferred embodiment, the supporting rotating disk 31 has a disc-shaped structure and is used to support the trimming operation. The adjusting component 32 is used to adjust the trimming width. The switching component 33 is used to switch the trimming mode. By adjusting the trimming width using the adjusting component 32 and switching the trimming mode using the switching component 33, the supporting rotating disk 31 supports the trimming operation. This provides a multi-functional trimming capability, ensuring the flexibility and precision of the trimming operation.

[0041] Example 2:

[0042] Based on Embodiment 1, in order to provide a stable cutting edge width adjustment function, adjustment components 32 are provided on the inner side of the two sets of support rotating disks 31.

[0043] Specifically, the adjustment assembly 32 includes: a handwheel 321, rotatably disposed on the outside of the other side of the support frame 1; a double-threaded screw 322, rotatably disposed inside the support frame 1 and rotating between two sets of support rotating disks 31, with one end bolted to the handwheel 321; three sets of guide posts 323, with both ends fixedly connected to the center side of the two sets of support rotating disks 31 respectively; two sets of sliding sleeves 324, sliding horizontally inside the support frame 1, with the middle part threadedly connected to both sides of the double-threaded screw 322, and passed through and slid by the three sets of guide posts 323; a cold cutting blade 325, disposed on one side of the sliding sleeve 324; and an electrothermal cutting blade 326, disposed on the other side of the sliding sleeve 324.

[0044] In this embodiment, the guide post 323 is a cylindrical structure used to guide the sliding sleeve 324. The sliding sleeve 324 is used to move the cold cutting blade 325 and the electrothermal cutting blade 326. The cold cutting blade 325 is made of high-hardness steel and is used for cold cutting operations. The electrothermal cutting blade 326 is made of high-hardness steel and is used for electrothermal cutting operations. The electrothermal cutting blade 326 is powered through a conductive slip ring installed on one side of the supporting rotating disk 31: the stator end of the slip ring is fixed to the supporting frame 1 and connected to the controller power supply, and the rotor end rotates with the rotating disk and is connected to the electrothermal cutting blade 326 through a high-temperature lead wire. By utilizing the sliding contact between the carbon brush and the copper ring, electrical energy is continuously and stably transmitted during 90-degree switching or continuous rotation, ensuring reliable heating and preventing the wiring from tangling. Rotating the handwheel 321 drives the double-threaded screw 322 to rotate, causing the two sets of sliding sleeves 324 to move relative to each other and slide on the guide post 323, adjusting the position of the cold cutting blade 325 and the electrothermal cutting blade 326. It provides a stable edge width adjustment function to ensure the flexibility and precision of edge cutting operations.

[0045] Example 3:

[0046] Based on Embodiment 2, in order to provide a stable cutting mode switching function, a switching component 33 is provided on one side of the outer wall of the support frame 1 and on one side of a set of support rotating disks 31.

[0047] Specifically, the switching component 33 includes: an arc-shaped groove 331 formed on one side of the outer wall of the support frame 1; a locking groove 332 formed on one side of the outer wall of the support frame 1 and located on both sides of the arc-shaped groove 331; a sliding post 333 disposed on one side of a set of supporting rotating disks 31 and sliding inside the arc-shaped groove 331; a locking housing 334 sleeved on the outside of the sliding post 333 and sliding against the outer wall of the support frame 1 on one side; a locking sleeve 335 sleeved on the outside of the sliding post 333 and sliding inside the locking housing 334, with one end inserted into the locking groove 332; a lever block 336 disposed on the outer wall of the locking sleeve 335; and a compression spring 337 sleeved on the outside of the sliding post 333 and disposed inside the locking housing 334, with one end fixedly connected to the other end of the locking sleeve 335.

[0048] In this configuration, the arc-shaped groove 331 is used for the sliding of the sliding column 333. The sliding column 333 is a cylindrical structure made of high-strength steel and is used to drive the rotation of the support rotating disk 31. Sliding the lever 336 to the outside of the side wall of the support frame 1 causes the locking sleeve 335 to move, compressing the compression spring 337. Holding the sliding column 333, slide it to one side within the arc-shaped groove 331. Simultaneously, the sliding column 333 drives a set of support rotating disks 31 to rotate. This set of support rotating disks 31, through the guide column 323 and the double-threaded screw 322, drives another set of support rotating disks 31 to rotate. When the locking sleeve 335 reaches the locking groove 332 on one side, the compression spring 337 resets, pushing the locking sleeve 335 into the locking groove 332 on one side. This provides a stable edge-cutting mode switching function, ensuring the flexibility and stability of the edge-cutting operation.

[0049] In actual use, the user first turns the handwheel 321 as needed, causing the double-threaded screw 322 to rotate. This moves the two sets of sliding sleeves 324 relative to each other and slides on the guide post 323. When the sliding sleeves 324 move to the desired width adjustment position, the user stops turning the handwheel 321. Then, the user slides the lever block 336 outwards towards the side wall of the support frame 1. The lever block 336 moves the locking sleeve 335, compressing the compression spring 337. At this point, the user holds the sliding post 333 and slides it to one side within the arc-shaped groove 331. Simultaneously, the sliding post 333 drives a set of support rotating discs 31 to rotate. The moving plate 31 drives another set of supporting rotating plates 31 to rotate through the guide post 323 and the double threaded screw 322. At the same time, the sliding sleeve 324 rotates the cold cutting blade 325 to fit against the outer wall of the first transmission roller 21. At this time, the locking sleeve 335 reaches the locking groove 332 on one side. Then the compression spring 337 resets and pushes the locking sleeve 335 to insert into the locking groove 332 on one side. Then the user starts the transmission equipment (not shown in the figure). The uncut material is transmitted and rotated through the first transmission roller 21. Both sides of the material will be cut by the cold cutting blade 325. After the material is cut, it will be transmitted to the next process through the second transmission roller 22.

[0050] 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 multifunctional edge-cutting device for processing plastic woven bags, characterized in that: Including the supporting framework (1); The transmission component (2) is disposed within the support frame (1); The edge-cutting module (3) is set at the top inside the support frame (1); The rotating support disk (31) is rotatably mounted on both sides inside the support frame (1).

2. The multi-functional edge-cutting device for processing plastic woven bags according to claim 1, characterized in that: The transmission component (2) includes; The first transmission roller (21) is rotatably disposed inside the support frame (1) and located at the bottom of the support rotating disk (31); The second transmission roller (22) is rotatably mounted inside the bottom of the support frame (1).

3. The multi-functional edge-cutting device for processing plastic woven bags according to claim 1, characterized in that: The edge trimming module (3) includes: Adjustment component (32) is located inside the two sets of support rotating disks (31); The switching component (33) is set on the outer wall of one side of the support frame (1) and is located on one side of a set of support rotating disks (31).

4. A multi-functional edge-cutting device for processing plastic woven bags according to claim 3, characterized in that: The adjustment component (32) includes; The handwheel (321) is rotatably mounted on the outside of the other side of the support frame (1); The double threaded screw (322) is rotatably set inside the support frame (1) and rotates between two sets of support rotating disks (31), and one end is bolted to the handwheel (321); The guide column (323) is provided in three sets, and its two ends are respectively fixedly connected to the center side of the two sets of support rotating disks (31); The sliding sleeve (324) is provided in two sets and slides horizontally inside the support frame (1). The middle part is threadedly connected to both sides of the double threaded screw (322) and is passed through and slid by three sets of guide posts (323). A cold cutting blade (325) is disposed on one side of the sliding sleeve (324); The electrothermal cutting blade (326) is located on the other side of the sliding sleeve (324).

5. A multifunctional edge-cutting device for processing plastic woven bags according to claim 3, characterized in that: The switching component (33) includes; An arc-shaped groove (331) is formed on the outer wall of one side of the support frame (1); The locking groove (332) is opened on one side of the outer wall of the support frame (1) and is located on both sides of the arc groove (331); The sliding column (333) is set on one side of a set of supporting rotating disks (31) and slides inside the arc groove (331); The locking shell (334) is fitted outside the sliding column (333) and slides against the outer wall of the support frame (1) on one side; The locking sleeve (335) is sleeved on the outside of the sliding post (333) and slides inside the locking housing (334), with one end inserted into the locking groove (332); The prying block (336) is located on the outer wall of the locking sleeve (335); A compression spring (337) is sleeved on the outside of the sliding post (333) and located inside the locking housing (334), with one end fixedly connected to the other end of the locking sleeve (335).

6. A multi-functional edge-cutting device for processing plastic woven bags according to claim 5, characterized in that: The lever (336) is provided in four sets and is arranged around the outer wall of the locking sleeve (335).

7. A multifunctional edge-cutting device for processing plastic woven bags according to claim 5, characterized in that: The locking housing (334) has sliding grooves on its four outer walls, and the prying block (336) slides in the sliding grooves of the locking housing (334).

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