Non-coated cotton self-adhesive film packaging equipment
By designing a strip bar and clamping block structure, the problems of uniform distribution of sliders and control of clamping force in cotton packaging equipment were solved, realizing uniform force and tight fit of cotton packaging bags, and improving packaging sealing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO BAISHENG NEW PACKAGING MATERIAL TECH CO LTD
- Filing Date
- 2025-08-01
- Publication Date
- 2026-05-29
AI Technical Summary
In existing cotton packaging equipment, the evenly spaced distribution of locking fasteners relies on operational experience, which can easily lead to unbalanced force on the bag opening. Furthermore, when the bag opening curls excessively during magnetic compression, the locking fasteners may not fit tightly, resulting in bag leakage.
Design a self-adhesive packaging device for uncoated cotton, which adopts a strip rod and clamping block structure. The slider is evenly distributed by the slider and scale, and the clamping force of the clamping block is adjusted by the knob and threaded rod to ensure that the bag opening is evenly stressed and tightly sealed.
It achieves precise and uniform distribution of the slider, reduces stress imbalance at the bag opening, enhances the bag opening seal, avoids leakage, and improves packaging effect.
Smart Images

Figure CN224297820U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging technology, specifically to a non-coated cotton self-adhesive film packaging device. Background Technology
[0002] Cotton is one of the world's most important crops. Its large yield and low production cost make cotton products relatively inexpensive. When packaging cotton, uncoated cotton self-adhesive film packaging equipment is usually used for packaging.
[0003] For example, a self-adhesive lock for cotton packaging film, disclosed in CN116119178A, uses a locking structure of lock parts and sealing strips to clamp and seal the opening of the packaging film bag. The self-adhesive coating on the sealing strips forms a self-adhesive seal on the inside of the bag opening, preventing moisture and dust from entering. It boasts high bonding strength and good sealing performance. Furthermore, the nano-mark-free adhesive layer structure and the locking clip structure are reusable, reducing usage costs. The structure is simple and production costs are low. The separate structure of the sealing strips and lock parts allows for free cutting of the sealing strips according to the width of the packaging film to adapt to different specifications, improving the practicality of the lock structure. However, this lock requires the lock parts to be evenly spaced along the sealing strips, necessitating operator experience for placement. This can easily lead to unbalanced force on the bag opening, resulting in localized leakage under tension. Additionally, the lock uses magnetic force to compress the packaging film bag opening; when the packaging film bag opening has many curled layers, the lock parts may not adhere tightly. Utility Model Content
[0004] The purpose of this invention is to solve the problems of the need for evenly spaced locking components along the sealing strip, which requires operators to place them based on experience, easily leading to unbalanced force on the bag opening and localized leakage under tension. In addition, the locking mechanism uses magnetic force to squeeze the bag opening, which can easily lead to loose locking components when there are many layers of rolled packaging film. Therefore, this invention proposes a non-coated cotton self-adhesive film packaging device.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] Design a non-coated cotton self-adhesive film packaging device, including a strip rod and clamping blocks. Clamping blocks are provided on both sides of the strip rod, and adjustment structures are provided on both sides of the clamping blocks. A positioning structure is provided on the top of the strip rod. The positioning structure includes a slider and a scale. The outer wall of the slider is slidably connected to a sliding groove. The sliding groove is machined on the inner wall of the strip rod, and the scale is machined on both sides of the outer wall of the strip rod.
[0007] Preferably, the sliders are all fixedly connected to the curved plate above them.
[0008] Preferably, the adjustment structure includes a knob and a sleeve. A threaded rod is fixedly connected to the inner side of each knob. The outer wall of the threaded rod is threadedly connected to a nut and a bent plate, respectively. The end of the threaded rod is rotatably connected to a clamping block through a bearing. The outer wall of each sleeve is fixedly connected to a bent plate, and the inner wall of each sleeve is slidably connected to a sliding rod.
[0009] Preferably, the ends of the slide rods are all fixedly connected to the clamping blocks.
[0010] Preferably, the outer wall of the inner nut is tightly abutted against the bent plate.
[0011] The present invention proposes an uncoated cotton self-adhesive film packaging device, which has the following advantages: by cooperating with the strip rod and the positioning structure, the sliders are placed into the slide groove in sequence, and the sliders are moved manually. According to the scale, multiple sliders are evenly distributed on the strip rod. This allows the sliders to be accurately and evenly distributed according to the scale, reducing the occurrence of unbalanced force at the bag opening and local leakage under tension.
[0012] By coordinating the bending plate and the adjustment structure, first loosen several nuts, then turn the knobs on both sides. The rotation of the knobs drives the threaded rod to rotate, which in turn moves the clamping block and simultaneously causes several sliding rods to slide along the inner wall of the sleeve. When the inner side of the clamping block is tightly against the packaging bag, stop turning the knobs. Then, the operator tightens the nuts in sequence so that the inner nuts are tightly against the bending plate, thereby controlling the clamping force and reducing the possibility of the clamping block not fitting tightly against the packaging bag. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model;
[0014] Figure 2 for Figure 1 A partial front view;
[0015] Figure 3 for Figure 1 Top sectional view;
[0016] Figure 4 for Figure 3 A magnified view of part A in the diagram;
[0017] Figure 5 This is a 3D schematic diagram of the slider.
[0018] In the diagram: 1. Bar rod, 2. Adjustment structure, 201. Knob, 202. Threaded rod, 203. Sleeve, 204. Slide rod, 205. Nut, 3. Positioning structure, 301. Slider, 302. Slide groove, 303. Scale, 4. Clamping block, 5. Bend plate. Detailed Implementation
[0019] The present invention will be further described below with reference to the accompanying drawings:
[0020] See attached document Figure 1-5 In this embodiment, an uncoated cotton self-adhesive film packaging device includes a strip rod 1 and clamping blocks 4. Clamping blocks 4 are provided on both sides of the strip rod 1, and adjusting structures 2 are provided on both sides of the clamping blocks 4. A positioning structure 3 is provided above the strip rod 1. The positioning structure 3 includes a slider 301 and a scale 303. The outer wall of the slider 301 is slidably connected to the groove 302.
[0021] The slide groove 302 is machined on the inner wall of the strip rod 1, the scale 303 is machined on both sides of the outer wall of the strip rod 1, the upper part of the slider 301 is fixedly connected to the bending plate 5, the end of the slide rod 204 is fixedly connected to the clamping block 4, and the outer wall of the inner nut 205 is pressed against the bending plate 5.
[0022] The adjustment structure 2 includes a knob 201 and a sleeve 203. A threaded rod 202 is fixedly connected to the inner side of the knob 201. The outer wall of the threaded rod 202 is threadedly connected to the nut 205 and the bent plate 5, respectively. The end of the threaded rod 202 is rotatably connected to the clamping block 4 through a bearing. The outer wall of the sleeve 203 is fixedly connected to the bent plate 5. The inner wall of the sleeve 203 is slidably connected to the sliding rod 204. Rotating the knob 201 drives the threaded rod 202 to rotate. Rotating the threaded rod 202 drives the clamping block 4 to move, and at the same time drives multiple sliding rods 204 to slide along the inner wall of the sleeve 203.
[0023] Working principle:
[0024] When using uncoated cotton self-adhesive film packaging equipment:
[0025] After the operator fills the packaging bag with cotton, they use the self-adhesive property of the bag opening to seal it. Then, the operator selects a strip rod 1 that matches the width of the food at the bag opening. Using the central axis of the strip rod as the center, the operator rotates and rolls the inside of the bag opening to the appropriate number of layers (this can be adjusted according to the amount of cotton inside the packaging bag). Then, the sliders 301 are placed into the grooves 302 one by one. The operator manually moves the sliders 301 and, according to the scale 303, distributes multiple sliders 301 evenly on the strip rod 1. This ensures that the sliders 301 are precisely and evenly distributed, reducing the possibility of uneven force at the bag opening and localized leakage under tension.
[0026] After the slider 301 is positioned, the operator first loosens multiple nuts 205 and rotates the knobs 201 on both sides. The rotation of the knobs 201 drives the threaded rod 202 to rotate, which in turn moves the clamping block 4 and simultaneously causes multiple sliding rods 204 to slide along the inner wall of the sleeve 203. When the inner side of the clamping block 4 is tightly against the packaging bag, the operator stops rotating the knobs 201. Then, the operator tightens the multiple nuts 205 in sequence so that the inner nuts 205 are tightly against the bent plate 5. This allows the clamping force to be controlled, reducing the possibility of the clamping block 4 not fitting tightly against the packaging bag. The multiple clamping blocks 4 can increase the sealing of the packaging bag.
[0027] When cotton needs to be taken out, the operator turns the knob 201 in the opposite direction to the packaging direction to move the clamps 201 on both sides away from the packaging bag, and then unfolds the packaging bag from the bar 1. The operator can then manually tear open the bag and take out the cotton.
[0028] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.
Claims
1. A non-coated cotton self-adhesive film packaging device, comprising a strip rod (1) and clamping blocks (4), wherein clamping blocks (4) are provided on both sides of the strip rod (1), characterized in that: The clamping block (4) is provided with adjustment structures (2) on both sides, and a positioning structure (3) is provided above the bar rod (1). The positioning structure (3) includes a slider (301) and a scale (303). The outer wall of the slider (301) is slidably connected to the slide groove (302). The slide groove (302) is machined on the inner wall of the bar rod (1), and the scale (303) is machined on both sides of the outer wall of the bar rod (1).
2. The uncoated cotton self-adhesive film packaging equipment according to claim 1, characterized in that: The slider (301) is fixedly connected to the curved plate (5) above it.
3. The uncoated cotton self-adhesive film packaging equipment according to claim 1, characterized in that: The adjustment structure (2) includes a knob (201) and a sleeve (203). The inner side of the knob (201) is fixedly connected to a threaded rod (202). The outer wall of the threaded rod (202) is threadedly connected to a nut (205) and a bent plate (5) respectively. The end of the threaded rod (202) is rotatably connected to a clamping block (4) through a bearing. The outer wall of the sleeve (203) is fixedly connected to the bent plate (5), and the inner wall of the sleeve (203) is slidably connected to a sliding rod (204).
4. The uncoated cotton self-adhesive film packaging equipment according to claim 3, characterized in that: The ends of the slide rod (204) are all fixedly connected to the clamping block (4).
5. The uncoated cotton self-adhesive film packaging equipment according to claim 3, characterized in that: The outer wall of the nut (205) on the inner side is pressed against the bent plate (5).