A plastic packaging bag cutting device with smoothing function

Abstract

The utility model discloses a plastic packaging bag cutting device with the function is smoothed, relates to plastic packaging bag processing technical field, including work table, the top fixedly connected with support frame of work table, the outer wall of support frame is installed with cutter, the inner wall of support frame is installed with screw rod, one end of screw rod is fixedly connected with handle. The utility model discloses the screw rod, handle, scraper, sliding block and sliding slot that set up, can move the scraper to the surface contact with the packaging bag through rotating handle, to adapt to the packaging bag of different thickness, along with the forward conveying of packaging bag, the longitudinal or transverse wrinkle (such as partial bulge because static adsorption generates) of surface residual of scraper will be forced to scrape flat, make the film closely convey mesa, can effectively eliminate the slight wrinkle (such as the wave pattern that generates in the process because uneven tension) of packaging bag surface, make the flatness of cutting position improve 90% or above, reduce the cutting size deviation caused by wrinkle.

Description

Technical Field

[0001] This utility model relates to the field of plastic packaging bag processing technology, specifically a plastic packaging bag cutting device with a smoothing function. Background Technology

[0002] In the modern packaging industry, plastic packaging bags are widely used in the packaging of various products such as food, daily necessities, and industrial parts due to their advantages of being lightweight, durable, and low-cost. As the market demands for packaging efficiency and quality continue to increase, the large-scale production of plastic packaging bags has become an inevitable trend in the industry. Cutting, as a key link in the plastic packaging bag production process, directly affects the quality of the final product and production efficiency in terms of its precision and efficiency. Therefore, a plastic packaging bag cutting device with a smoothing function is needed.

[0003] Existing plastic packaging bag cutting devices with smoothing functions often suffer from lateral deviations during high-speed transport because the plastic packaging bag material is usually continuously conveyed in roll form. This deviation can prevent some material from entering the cutting area, resulting in material waste. During the cutting process, the packaging bag material is prone to wrinkling and curling due to uneven tension, friction during transport, or its own stress. When cutting, the wrinkled areas experience significant resistance due to material accumulation, leading to uneven cutting force distribution by the blade. This results in defects such as uneven cuts, burrs, and tears, and may even cause the cutting position to deviate completely from the preset line, resulting in product scrap. Therefore, there is an urgent need for a new type of plastic packaging bag cutting device. Utility Model Content

[0004] Based on this, the purpose of this utility model is to provide a plastic packaging bag cutting device with a smoothing function, in order to solve the problem that existing plastic packaging bag cutting devices, when in use, are often used because plastic packaging bag materials are usually continuously conveyed in roll form. During high-speed transmission, the packaging bag may shift laterally on the transmission path, causing some material to fail to enter the cutting area due to excessive shift, resulting in material waste. During the cutting process, the packaging bag material is prone to wrinkles and curling due to uneven tension, friction during the transmission process, or its own stress. When cutting, the wrinkled areas will generate greater resistance due to the accumulation of material, resulting in uneven distribution of cutting force by the blade, leading to defects such as uneven cuts, burrs, and tears. This may cause the cutting position to completely deviate from the preset line, resulting in product scrap.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a plastic packaging bag cutting device with a smoothing function, comprising a workbench, a support frame fixedly connected to the top of the workbench, a cutter installed on the outer wall of the support frame, a lead screw installed on the inner wall of the support frame, a handle fixedly connected to one end of the lead screw, a scraper installed on one end of the lead screw, a slider provided on the side wall of the scraper, and a groove provided on the inner wall of the support frame.

[0006] A fixed frame is fixedly connected to the top of the workbench. An adjusting column is installed on the side wall of the fixed frame. A drive motor is fixedly connected to the inner wall of the adjusting column. A bidirectional threaded rod is fixedly connected to the drive motor through a coupling. A guide plate is provided on the inner wall of the adjusting column. A baffle is installed on the outer wall of the bidirectional threaded rod. A moving block is provided on the inner wall of the guide plate.

[0007] Preferably, the lead screw is movably connected to the scraper, and the lead screw and the scraper form a rotating structure through the handle.

[0008] Preferably, the scraper is connected to the support structure via a slider, and the slider is engaged with the groove.

[0009] Preferably, the bidirectional threaded rod is movably connected to the adjusting column, and the bidirectional threaded rod is threadedly connected to the moving block.

[0010] Preferably, the baffle forms a sliding structure with the adjusting column via a moving block, and the moving block is engaged with the guide plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model, through the setting of a lead screw, handle, scraper, slider and groove, allows the scraper to be moved to contact the surface of the packaging bag by rotating the handle, so as to adapt to packaging bags of different thicknesses. As the packaging bag is conveyed forward, the scraper forcibly scrapes flat the longitudinal or transverse wrinkles (such as local protrusions caused by electrostatic adsorption) on the surface, so that the film adheres tightly to the conveyor table, which can effectively eliminate slight wrinkles on the surface of the packaging bag (such as wavy lines caused by uneven tension during the conveying process), improve the flatness of the cutting position by more than 90%, and reduce the cutting size deviation caused by wrinkles; 2. This utility model, through the setting of an adjustment column, drive motor, bidirectional threaded rod, guide plate, baffle, and moving block, uses the drive motor to move the baffles on both sides closer together, which can limit the lateral deviation of the packaging bags, ensure edge alignment, and indirectly reduce wrinkles caused by deviation. When the packaging bag enters the limiting area with the conveyor belt, the silicone strips of the baffles on both sides lightly contact the edge of the packaging bag, using friction to limit lateral deviation. Then, the scraper smooths the surface of the aligned packaging bag. The combination of these two measures can reduce the wrinkle rate and prevent defective products from flowing into the cutting process. Attached Figure Description

[0012] Figure 1 This is a perspective view of the present utility model; Figure 2 This is a schematic diagram of the smoothing structure of this utility model; Figure 3 This is a schematic diagram of the limiting structure of this utility model; Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0013] In the diagram: 1. Workbench; 2. Support frame; 3. Cutter; 4. Lead screw; 5. Handle; 6. Scraper; 7. Slider; 8. Slide rail; 9. Fixing frame; 10. Adjusting column; 11. Drive motor; 12. Two-way threaded rod; 13. Guide plate; 14. Baffle; 15. Moving block. Detailed Implementation

[0014] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0015] The embodiments of this utility model will be described below based on its overall structure.

[0016] Please see Figures 1-4 A plastic packaging bag cutting device with a smoothing function includes a workbench 1, a support frame 2 fixedly connected to the top of the workbench 1, a cutter 3 installed on the outer wall of the support frame 2, a lead screw 4 installed on the inner wall of the support frame 2, a handle 5 fixedly connected to one end of the lead screw 4, a scraper 6 installed on the other end of the lead screw 4, a slider 7 provided on the side wall of the scraper 6, and a groove 8 opened on the inner wall of the support frame 2. The lead screw 4 and the scraper 6 are movably connected, and the lead screw 4 and the scraper 6 form a rotating structure through the handle 5. The scraper 6 and the support frame 2 form a rotating structure through the slider 7. The device features a sliding structure, with the slider 7 engaging with the groove 8. When using the device, rotating the handle 5 rotates the lead screw 4, which in turn drives the slider 7 to move downwards along the groove 8 and causes the scraper 6 to move downwards, bringing it into contact with the surface of the packaging bag. Before the packaging bag enters the cutting device along the conveyor belt, it passes under the scraper 6. As the packaging bag is conveyed forward, the scraper 6 forcibly smooths out any remaining longitudinal or transverse wrinkles on the surface, such as local protrusions caused by electrostatic adsorption, ensuring that the film adheres tightly to the conveyor table.

[0017] Please see Figures 1-4A plastic packaging bag cutting device with a smoothing function is disclosed. A fixed frame 9 is fixedly connected to the top of a workbench 1. An adjusting column 10 is installed on the side wall of the fixed frame 9. A drive motor 11 is fixedly connected to the inner wall of the adjusting column 10. A bidirectional threaded rod 12 is fixedly connected to the drive motor 11 via a coupling. A guide plate 13 is provided on the inner wall of the adjusting column 10. A baffle 14 is installed on the outer wall of the bidirectional threaded rod 12. A moving block 15 is provided on the inner wall of the guide plate 13. The bidirectional threaded rod 12 is movably connected to the adjusting column 10, and the bidirectional threaded rod 12 is threadedly connected to the moving block 15. The baffle 14 and the adjusting column 10 form a sliding structure through the moving block 15. Furthermore, the movable block 15 is engaged with the guide plate 13. When using the device, by starting the drive motor 11, the output shaft of the drive motor 11 drives the bidirectional threaded rod 12 to rotate. Since the threads at both ends of the threaded rod are opposite in direction, and the bidirectional threaded rod 12 and the movable block 15 are threadedly connected, the two movable blocks 15 move synchronously towards each other along the guide plate 13 under the drive of the rotation of the bidirectional threaded rod 12. At this time, the baffles 14 installed on the two movable blocks 15 move closer. When the packaging bag enters the adjusting column 10 with the conveyor belt, the two baffles 14 lightly contact the edge of the packaging bag, using friction to limit lateral deviation and indirectly reduce wrinkles caused by deviation.

[0018] Working principle: In use, first move the device to a suitable position. When the packaging bag is transferred to the adjusting column 10, start the drive motor 11. The output shaft of the drive motor 11 drives the bidirectional threaded rod 12 to rotate. Since the bidirectional threaded rod 12 and the moving block 15 are threadedly connected, the rotation of the bidirectional threaded rod 12 drives the moving block 15 to slide along the guide plate 13, and simultaneously drives the baffles 14 on both sides to move closer to each other, so that the baffles 14 on both sides are in contact with the edge of the packaging bag, thus aligning the packaging bag. Then, turn the handle 5 and drive the lead screw 4 to rotate. Driven by the rotation of the lead screw 4, the scraper 6 moves downward along the slide groove 8 using the slider 7, moving the scraper 6 to contact the surface of the packaging bag. The aligned surface of the packaging bag is then smoothed. The combination of these two actions reduces the wrinkle rate and prevents defective products from entering the cutting process. This completes the use of the device. The contents not described in detail in this manual are existing technologies known to those skilled in the art.

[0019] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A plastic packaging bag cutting device with a smoothing function, comprising a worktable (1), characterized in that: The top of the workbench (1) is fixedly connected to a support frame (2), a cutter (3) is installed on the outer wall of the support frame (2), a lead screw (4) is installed on the inner wall of the support frame (2), a handle (5) is fixedly connected to one end of the lead screw (4), a scraper (6) is installed on one end of the lead screw (4), a slider (7) is provided on the side wall of the scraper (6), and a groove (8) is opened on the inner wall of the support frame (2). The top of the workbench (1) is fixedly connected to a fixed frame (9), and an adjusting column (10) is installed on the side wall of the fixed frame (9). A drive motor (11) is fixedly connected to the inner wall of the adjusting column (10). The drive motor (11) is fixedly connected to a double-threaded rod (12) through a coupling. A guide plate (13) is provided on the inner wall of the adjusting column (10). A baffle (14) is installed on the outer wall of the double-threaded rod (12). A moving block (15) is provided on the inner wall of the guide plate (13).

2. The plastic packaging bag cutting device with smoothing function according to claim 1, characterized in that: The lead screw (4) is movably connected to the scraper (6), and the lead screw (4) and the scraper (6) form a rotating structure through the handle (5).

3. The plastic packaging bag cutting device with smoothing function according to claim 1, characterized in that: The scraper (6) forms a sliding structure with the support frame (2) through the slider (7), and the slider (7) is engaged with the groove (8).

4. The plastic packaging bag cutting device with smoothing function according to claim 1, characterized in that: The bidirectional threaded rod (12) is movably connected to the adjusting column (10), and the bidirectional threaded rod (12) is threadedly connected to the moving block (15).

5. A plastic packaging bag cutting device with a smoothing function according to claim 1, characterized in that: The baffle (14) forms a sliding structure with the adjusting column (10) through the moving block (15), and the moving block (15) is engaged with the guide plate (13).

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