Plastic package fixing structure for cotton towel production
By using a support plate and pressing column assembly driven by a rotary motor, the problem of air not being able to escape from the packaging bag during the production of cotton towels is solved, achieving safe and efficient packaging bag fixing and sealing, and avoiding the risk of bag explosion.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-29
- Publication Date
- 2026-03-17
AI Technical Summary
In the current technology for producing cotton wipes, the air inside the packaging bag cannot be effectively expelled, resulting in increased volume and a risk of the bag exploding.
The system employs a fixed structure, with a support plate and pressing column assembly driven by a rotary motor. The stepped pressing columns squeeze the packaging bag to expel internal air, while pneumatic rods and heat-sealing blocks are used to seal and cut the bag opening.
It effectively secures the packaging bag, removes excess air, reduces the bag's volume, avoids the risk of the bag exploding, and improves production safety and efficiency.
Smart Images

Figure CN223999918U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cotton soft towel production technology, and in particular to a fixing structure for plastic sealing in cotton soft towel production. Background Technology
[0002] Cotton soft towels are a multi-functional cleaning and care product carefully crafted from natural cotton. The raw material is high-quality cotton, which undergoes a series of fine processes such as combing and opening to make the cotton fibers even and orderly. Then, using processes such as hydroentangling and hot rolling, the fibers are tightly intertwined to create a tough yet soft towel shape.
[0003] Chinese Patent Publication No. CN213620583U discloses a bag sealing device for producing cotton soft towels. The device includes a support frame, a conveyor belt, and a first fixing plate fixed to the support frame and above the conveyor belt. A cotton soft towel bag is placed on the conveyor belt, with one end of the bag closed and the other end open. A sealing block is positioned above the open end of the bag, and a first cylinder is connected to the sealing block. A cutting blade is located on the side of the sealing block away from the bag, and a second cylinder is connected to the cutting blade. This application uses a cutting blade on the side of the sealing block away from the bag. After the sealing block seals the bag, the second cylinder is activated, and the cutting blade can cut away the deformed sealed end of the bag, improving the flatness of the sealed area of the cotton soft towel packaging bag.
[0004] While existing technology can cut off the sealed end of the bag during the packaging process of cotton wipes, a large amount of air cannot escape from the inside of the packaging bag during the plastic sealing process. After sealing, the air inside the packaging bag not only increases the volume of the cotton wipes, but also poses a risk of the bag exploding when stacked, thus causing economic losses. Utility Model Content
[0005] The purpose of this invention is to provide a fixed structure for sealing cotton soft towels during production, which solves the problem in the prior art that the air inside the packaging bag not only increases the volume of the cotton soft towels, but also poses a risk of the bags bursting when stacked.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A fixed structure for producing and sealing cotton soft towels includes a support frame. A conveyor belt is fixedly installed on the lower inner surface of the support frame. Fixed components are provided on the top and upper inner surface of the support frame. The fixed components include a rotary motor, a sleeve, a lifting rod, a limiting slider, a threaded hole, a support plate, a pressing box, and a pressing column. The rotary motor is fixedly installed on the top of the support frame. The sleeve is fixedly connected to the upper inner surface of the support frame. The lifting rod is slidably connected to the inside of the sleeve. The limiting slider is fixedly connected to the side surface of the lifting rod. The threaded hole is opened at the upper end of the lifting rod. The support plate is fixedly connected to the bottom end of the lifting rod. The pressing box is fixedly connected to the bottom of the support plate. The pressing column is movably installed inside the pressing box.
[0008] Preferably, the inner wall of the sleeve is provided with a groove that matches the limiting slider, the output end of the rotary motor is located inside the sleeve and is threadedly connected to the threaded hole, and the pressing columns are distributed in a stepped manner at the bottom of the pressing box.
[0009] Preferably, the side of the support plate is provided with a limiting component, which includes a baffle, a moving groove, a limiting slide groove, a helical spring, a limiting slider II, a pneumatic rod III, and a top plate. The baffle is symmetrically distributed and movably installed on the left and right sides of the support plate. The pneumatic rod III is fixedly installed on the side of the baffle away from the support plate. The telescopic end of the pneumatic rod III, located on the side of the baffle closer to the support plate, is fixedly connected to the top plate.
[0010] Preferably, a limiting slider two is fixedly connected to the side surface of the support plate, a moving groove is opened on the side of the baffle near the support plate, a limiting groove is opened on the inner side wall of the moving groove, the limiting slider two is adapted to the limiting groove, a helical spring is fixedly connected to the lower surface of the moving groove, and the top end of the helical spring is fixedly connected to the support plate.
[0011] Preferably, a pneumatic rod one is fixedly installed on the top of the support frame, and a cutting blade is fixedly connected to the telescopic end of the pneumatic rod one inside the support frame. A pneumatic rod two is fixedly installed on the top of the support frame and in front of the pneumatic rod one, and a heat sealing block is fixedly connected to the telescopic end of the pneumatic rod two inside the support frame.
[0012] Preferably, a control panel is fixedly installed on the left side of the support frame, and support columns are fixedly connected to the bottom of the support frame in a rectangular array.
[0013] This utility model has the following beneficial effects:
[0014] The fixing component is set up by starting a rotary motor, which rotates its transmission end. During rotation, due to the threaded connection with the threaded hole, the matching of the sliding groove on the inner wall of the sleeve and the limiting slider, the support plate, pressing box and pressing column can be driven to descend. When the pressing column descends, because it is distributed in a stepped manner, some of them will first contact the surface of the cotton soft tissue packaging bag and squeeze the air inside. Then, as the support plate descends, more pressing columns will press the surface of the cotton soft tissue packaging bag. This not only effectively presses and fixes the packaging bag containing cotton soft tissue, but also removes excess air inside, reduces the volume of the packaging bag, and prevents the bag from bursting due to excessive air inside during production. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;
[0017] Figure 2 This is a frontal perspective view of the present invention.
[0018] Figure 3 This is a three-dimensional structural diagram of the back of the present invention;
[0019] Figure 4 This is a three-dimensional structural diagram of a partial component of the fixing assembly of this utility model;
[0020] Figure 5 This is a three-dimensional structural diagram of a partial component of the limiting assembly of this utility model;
[0021] Figure 6 This is a three-dimensional exploded view of the support plate component and the baffle component of this utility model.
[0022] In the diagram: 1. Support frame; 2. Conveyor belt; 3. Fixing component; 4. Limiting component; 5. Pneumatic rod one; 6. Cutting blade; 7. Pneumatic rod two; 8. Heat sealing block; 9. Control panel; 10. Support column; 301. Rotary motor; 302. Sleeve; 303. Lifting rod; 304. Limiting slider one; 305. Threaded hole; 306. Support plate; 307. Pressing box; 308. Pressing column; 401. Baffle; 402. Moving groove; 403. Limiting slide groove; 404. Helical spring; 405. Limiting slider two; 406. Pneumatic rod three; 407. Top plate. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0024] Reference Figure 1-6 A fixed structure for producing and sealing cotton soft towels includes a support frame 1. A conveyor belt 2 is fixedly installed on the lower inner surface of the support frame 1. A fixing component 3 is provided on the top and upper inner surface of the support frame 1. The fixing component 3 includes a rotary motor 301, a sleeve 302, a lifting rod 303, a limiting slider 304, a threaded hole 305, a support plate 306, a pressing box 307, and a pressing column 308. The rotary motor 301 is fixedly installed on the top of the support frame 1. The sleeve 302 is fixedly connected to the upper inner surface of the support frame 1. The lifting rod 303 is slidably connected to the inside of the sleeve 302. The limiting slider 304 is fixedly connected to the side surface of the lifting rod 303. The threaded hole 305 is opened at the upper end of the lifting rod 303. The support plate 306 is fixedly connected to the bottom end of the lifting rod 303. The pressing box 307 is fixedly connected to the bottom of the support plate 306. The pressing column 308 is movably installed inside the pressing box 307.
[0025] The inner wall of the sleeve 302 has a groove that matches the limiting slider 304. The output end of the rotary motor 301 is located inside the sleeve 302 and is threadedly connected to the threaded hole 305. The pressing columns 308 are distributed in a stepped manner at the bottom of the pressing box 307. The fixing component 3 is set up so that by starting the rotary motor 301, its transmission end rotates. During the rotation, due to the threaded connection with the threaded hole 305 and the matching of the groove on the inner wall of the sleeve 302 with the limiting slider 304, the support plate 306 and the pressing box 307 can be driven. As the support plate 306 descends, more of the pressing columns 308 press the surface of the cotton wipe packaging bag. This not only effectively presses and fixes the packaging bag containing the cotton wipes, but also removes excess air, reducing the volume of the packaging bag and preventing it from bursting during production due to excessive air inside.
[0026] Furthermore, a limiting component 4 is provided on the side of the support plate 306. The limiting component 4 includes a baffle 401, a moving groove 402, a limiting slide groove 403, a coil spring 404, a limiting slider 405, a pneumatic rod 406, and a top plate 407. The baffle 401 is symmetrically distributed and movably installed on the left and right sides of the support plate 306. The pneumatic rod 406 is fixedly installed on the side of the baffle 401 away from the support plate 306. The top plate 407 is fixedly connected to the telescopic end of the pneumatic rod 406 and located on the side of the baffle 401 close to the support plate 306.
[0027] A limiting slider 405 is fixedly connected to the side surface of the support plate 306. A moving groove 402 is opened on the side of the baffle 401 near the support plate 306. A limiting groove 403 is opened on the inner side wall of the moving groove 402. The limiting slider 405 is adapted to the limiting groove 403. A coil spring 404 is fixedly connected to the lower surface of the moving groove 402. The top of the coil spring 404 is fixedly connected to the support plate 306. With the setting of the limiting component 4, when the support plate 306 is descending, it will simultaneously drive the baffle 401 to descend. First, the support plate 306 will also contact the surface of the conveyor belt 2. Then, the pneumatic rod 406 can be activated to extend its telescopic end, driving the top plate 407 to clamp and fix the left and right sides of the packaging bag containing the cotton towel, avoiding the situation of the bag bursting during the pressing process, effectively improving the safety of the packaging bag. Finally, after the left and right sides of the packaging bag are fixed, the support plate 306 continues to descend through the moving groove 402 until the pressing and fixing of the packaging bag is completed.
[0028] Furthermore, a pneumatic rod 5 is fixedly installed on the top of the support frame 1. A cutting blade 6 is fixedly connected to the telescopic end of the pneumatic rod 5 inside the support frame 1. A pneumatic rod 7 is fixedly installed on the top of the support frame 1 in front of the pneumatic rod 5. A heat sealing block 8 is fixedly connected to the telescopic end of the pneumatic rod 7 inside the support frame 1. The telescopic end of the pneumatic rod 5 drives the cutting blade 6 to cut off the excess length at the opening of the packaging bag. The telescopic end of the pneumatic rod 7 drives the heat sealing block 8 to heat seal the opening of the packaging bag.
[0029] Furthermore, a control panel 9 is fixedly installed on the left side of the support frame 1, and support columns 10 are fixedly connected to the bottom of the support frame 1 in a rectangular array. The control panel 9 is electrically connected to the conveyor belt 2, the rotary motor 301, the pneumatic rod 3 406, the pneumatic rod 1 5, the pneumatic rod 2 7 and the heat sealing block 8 respectively.
[0030] In summary:
[0031] In use, the packaging bag containing cotton wipes is first conveyed to the support plate 306 via the conveyor belt 2. The conveyor belt 2 is then turned off, and the rotary motor 301 is started via the control panel 9 to rotate its transmission end. During rotation, due to the threaded connection with the threaded hole 305 and the matching of the sliding groove on the inner wall of the sleeve 302 with the limiting slider 304, the support plate 306, the pressing box 307, and the pressing column 308 are driven to descend. When the support plate 306 contacts the surface of the conveyor belt 2, the pneumatic rod 406 is activated to extend its telescopic end, causing the top plate 407 to clamp and fix the packaging bag containing cotton wipes on the left and right sides. Then, the support plate 306, the pressing box 307, and the pressing column 308 continue to descend. Since the pressing column 308 is distributed in a stepped manner, some of them will first contact the surface of the cotton wipe packaging bag to compress the air inside. Afterward, as the support plate 306 descends, more pressing columns 308 will press the surface of the cotton wipe packaging bag.
[0032] Finally, activate pneumatic rod 7 to extend its telescopic end, which drives heat sealing block 8 to heat seal the opening of the packaging bag. Then, activate pneumatic rod 5 to extend its telescopic end, which drives cutting blade 6 to cut off the excess length at the opening of the packaging bag. Finally, activate conveyor belt 2 to transport the sealed cotton towel out.
[0033] 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 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 claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A fixed structure of plastic packaging for the production of soft cotton towels, comprising a support frame (1), characterized in that, The inner lower surface of the support frame (1) is fixedly installed with a conveying belt (2), and the top and inner upper surface of the support frame (1) is provided with a fixed assembly (3) which comprises a rotary motor (301), a sleeve (302), a lifting rod (303), a limiting sliding block I (304), a threaded hole (305), a supporting plate (306), a pressing box (307) and a pressing column (308), the rotary motor (301) is fixedly installed on the top of the support frame (1), the sleeve (302) is fixedly connected to the inner upper surface of the support frame (1), the lifting rod (303) is slidingly connected to the inside of the sleeve (302), the limiting sliding block I (304) is fixedly connected to the side surface of the lifting rod (303), the threaded hole (305) is formed in the upper end of the lifting rod (303), the supporting plate (306) is fixedly connected to the bottom end of the lifting rod (303), the pressing box (307) is fixedly connected to the bottom of the supporting plate (306), and the pressing column (308) is movably installed in the inside of the pressing box (307).
2. The fixed structure of plastic packaging for the production of a cotton-soft towel according to claim 1, characterized in that, A sliding groove is formed in the inner wall of the sleeve (302) and matched with the limiting sliding block I (304), the output end of the rotary motor (301) is located in the inside of the sleeve (302) and is threadedly connected with the threaded hole (305), and the pressing column (308) is distributed in a stepped manner at the bottom of the pressing box (307).
3. The fixed structure of plastic packaging for the production of a cotton-soft towel according to claim 1, characterized in that, A limiting assembly (4) is arranged on the side surface of the supporting plate (306), the limiting assembly (4) comprises a baffle (401), a moving groove (402), a limiting sliding groove (403), a spiral spring (404), a limiting sliding block II (405), a pneumatic rod III (406) and a top plate (407), the baffles (401) are symmetrically arranged on the left and right sides of the supporting plate (306) and are movably installed, the baffles (401) are fixedly installed with the pneumatic rod III (406) on the sides away from the supporting plate (306), and the telescopic end of the pneumatic rod III (406) and located on the side of the baffle (401) close to the supporting plate (306) is fixedly connected with the top plate (407).
4. The fixed structure of plastic packaging for the production of a cotton-soft towel according to claim 3, characterized in that, The side surface of the supporting plate (306) is fixedly connected with the limiting sliding block II (405), the moving groove (402) is formed in the side of the baffle (401) close to the supporting plate (306), the limiting sliding groove (403) is formed in the inner wall of the side of the moving groove (402), the limiting sliding block II (405) is matched with the limiting sliding groove (403), the spiral spring (404) is fixedly connected to the lower surface of the moving groove (402), and the top end of the spiral spring (404) is fixedly connected with the supporting plate (306).
5. The fixed structure of plastic packaging for the production of a cotton-soft towel according to claim 1, characterized in that, The top of the support frame (1) is fixedly installed with a pneumatic rod I (5), the telescopic end of the pneumatic rod I (5) and located in the inside of the support frame (1) is fixedly connected with a cutting knife (6), the top of the support frame (1) and located in front of the pneumatic rod I (5) is fixedly installed with a pneumatic rod II (7), and the telescopic end of the pneumatic rod II (7) and located in the inside of the support frame (1) is fixedly connected with a heat sealing block (8).
6. The fixed structure of plastic packaging for the production of a cotton-soft towel according to claim 1, characterized in that, The left side of the support frame (1) is fixedly provided with a control panel (9), and the bottom of the support frame (1) is fixedly connected with support columns (10) in a rectangular array distribution.
Citation Information
Patent Citations
Bag body sealing device for soft cotton towel production
CN213620583U