Breathable film machine for sanitary towel packaging film production
By designing the adjustment and winding components, the problems of unstable tension and uneven winding in the production of sanitary napkin packaging film were solved, achieving stable winding of the packaging film and improving its appearance quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-04
- Publication Date
- 2026-03-24
AI Technical Summary
In the current production process of sanitary napkin packaging film, unstable tension leads to inconsistent stretching and relaxation of the film material, which easily causes overlap and deviation, affecting the flatness and appearance of the roll.
The system employs adjustment and winding components, including support plates, threaded rods, sliders, ratchet wheels, and pawls, to adjust the tension of the packaging film and provide unidirectional limiting, ensuring the stability of the winding process.
It enables precise adjustment of the packaging film tension and prevents it from tipping over, ensuring the flatness and appearance quality during the winding process.
Smart Images
Figure CN224030314U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sanitary napkin packaging film processing technology, specifically a breathable film machine for the production of sanitary napkin packaging films. Background Technology
[0002] Sanitary napkin packaging film is a thin film material used to wrap sanitary napkin products. It plays an important role in protecting, hygienically isolating, and displaying information during the storage, transportation, and sales of the products.
[0003] However, existing technologies still have many defects in some similar structures when used in practice. For example, unstable tension will cause inconsistent pressure between the layers of the roll, resulting in the film being overstretched and relaxed, and the packaging film is prone to overlapping. At the same time, the packaging film is prone to deviation during the winding process, making it inconvenient to wind up the packaging film, resulting in an uneven surface of the roll, affecting the appearance of the roll and its subsequent use.
[0004] To address the aforementioned problems, the inventors proposed a breathable film machine for the production of sanitary napkin packaging films. Utility Model Content
[0005] To address the inconvenience of adjusting the tension of the packaging film during the winding process and the difficulty of winding the packaging film, the purpose of this utility model is to provide a breathable film machine for the production of sanitary napkin packaging film.
[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a breathable film machine for producing sanitary napkin packaging film, comprising a support frame, wherein a plurality of adjusting components are provided in the support frame, a winding assembly is fixedly connected to the lower part of the support frame, the winding assembly includes a first rotating shaft symmetrically distributed, a sprocket is fixedly connected to the end of the first rotating shaft, a chain is meshed between the sprockets, a motor is fixedly connected to one side of the support frame, the output end of the motor extends into the support frame and is fixedly connected to the first rotating shaft, a roller is fixedly sleeved on the outer surface of the first rotating shaft, a winding roller is placed on the outer surface of the roller, a second rotating shaft is movably sleeved between the support frames, a ratchet is fixedly connected to the other end of the second rotating shaft, and a pawl is meshed on the outer surface of the ratchet.
[0007] As a preferred technical solution of this application, the adjustment component includes symmetrically distributed support plates. One side of each support plate is fixedly connected to a bracket. A guide rod is fixedly connected to the top surface of one support plate, and a threaded rod is rotatably connected to the top surface of the other support plate. A second knob is fixedly connected to the top end of the threaded rod. Slider blocks are provided on both sides of the bracket. One side of one slider is threadedly connected to the threaded rod, and one side of the other slider is movably connected to the guide rod. A second knob is fixedly connected to the top end of the threaded rod. A conveying roller is rotatably connected between the sliders.
[0008] With the above technical solution, when it is necessary to adjust the tension of the conveyor roller, the second knob at the top of the threaded rod is turned. The limiting plate at the top of the guide rod can prevent the slider from falling off the guide rod. The grooves on both sides of the bracket fit against the outer surface of the slider, further restricting the movement direction of the slider and ensuring the stability of the adjustment process. The slider that is threadedly connected to the threaded rod will move up and down on the outer surface of the threaded rod. The other slider that is movably connected to the guide rod plays a guiding role, ensuring that the two sliders move up and down synchronously to adjust the height of the conveyor roller and adjust the tension of the packaging film during the winding process.
[0009] As a preferred technical solution of this application, a first knob is fixedly connected to one end of the second rotating shaft.
[0010] Through the above technical solution, the first knob drives the extrusion plate to straighten the packaging film.
[0011] As a preferred technical solution of this application, a fixing block is fixedly connected to one side of the bracket, and a spring is fixedly connected between the fixing block and the pawl.
[0012] Through the above technical solution, the spring keeps the pawl engaged with the ratchet at all times, playing a one-way limiting role and preventing the winding roller from reversing during the winding process.
[0013] As a preferred technical solution of this application, the outer surface of the roller is in contact with the outer surface of the winding roller.
[0014] Using the above technical solution, the winding roller placed on the outer surface of the drum begins to wind up the breathable membrane under the action of friction.
[0015] As a preferred technical solution of this application, a limiting plate is fixedly connected to the top end of the guide rod.
[0016] The above technical solution can prevent the slider from falling off the guide rod by using the limiting plate at the top of the guide rod.
[0017] As a preferred technical solution of this application, the bracket has grooves on both sides, and the outer surface of the slider is in contact with the inner wall of the groove.
[0018] The above technical solution further restricts the movement direction of the slider, ensuring stability during the adjustment process.
[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0020] 1. By rotating the second knob, the slider that is threadedly connected to the threaded rod will move up and down on the outer surface of the threaded rod, while another slider that is movably connected to the guide rod plays a guiding role, ensuring that the two sliders move up and down synchronously to adjust the height of the conveyor roller, thereby achieving the purpose of adjusting the tension of the packaging film during the winding process.
[0021] 2. This utility model can keep the pawl engaged with the ratchet by the spring, which plays a one-way limiting role and prevents the winding roller from reversing during the winding process. The extrusion plate straightens the packaging film, and the winding roller placed on the outer surface of the roller begins to wind up the breathable film under the action of friction, thereby achieving the purpose of effectively winding up the packaging film. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1 This is a schematic diagram of the structure of this utility model.
[0024] Figure 2 This is a schematic diagram of the adjustment component of this utility model.
[0025] Figure 3 This is a schematic diagram of the collection component of this utility model.
[0026] Figure 4 This is a schematic diagram of the collection component of this utility model.
[0027] In the diagram: 1. Bracket; 2. Adjustment assembly; 3. Rewinding assembly; 21. Support plate; 22. Guide rod; 23. Limiting plate; 24. Threaded rod; 25. Second knob; 26. Slider; 27. Conveyor roller; 28. Slide groove; 301. First shaft; 302. Sprocket; 303. Chain; 304. Motor; 305. Roller; 306. Coiling roller; 307. Second shaft; 308. First knob; 309. Ratchet; 310. Pad; 311. Fixing block; 312. 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] Example: Figure 1-4 As shown, this utility model provides a breathable film machine for the production of sanitary napkin packaging film, including a support 1, a plurality of adjusting components 2 inside the support 1, and a winding component 3 fixedly connected to the lower part of the support 1;
[0030] The winding assembly 3 includes a first rotating shaft 301 symmetrically distributed. A sprocket 302 is fixedly connected to the end of the first rotating shaft 301. A chain 303 is meshed between the sprockets 302. A motor 304 is fixedly connected to one side of the bracket 1. The output end of the motor 304 extends into the bracket 1 and is fixedly connected to the first rotating shaft 301. A roller 305 is fixedly sleeved on the outer surface of the first rotating shaft 301. A winding roller 306 is placed on the outer surface of the roller 305. The outer surface of the roller 305 is in contact with the outer surface of the winding roller 306. A second rotating shaft 307 is movably sleeved between the brackets 1. A first knob 308 is fixedly connected to one end of the second rotating shaft 307. A ratchet 309 is fixedly connected to the other end of the second rotating shaft 307. A pawl 310 is meshed on the outer surface of the ratchet 309. A fixing block 311 is fixedly connected to one side of the bracket 1. A spring 312 is fixedly connected between the fixing block 311 and the pawl 310.
[0031] The adjustment assembly 2 includes symmetrically distributed support plates 21. One side of each support plate 21 is fixedly connected to the bracket 1. A guide rod 22 is fixedly connected to the top surface of one support plate 21, and a limit plate 23 is fixedly connected to the top end of the guide rod 22. A threaded rod 24 is rotatably connected to the top surface of the other support plate 21, and a second knob 25 is fixedly connected to the top end of the threaded rod 24. Slider 26 are provided on both sides of the bracket 1. One side of one slider 26 is threadedly connected to the threaded rod 24, and the other side of the slider 26 is movably connected to the guide rod 22. A second knob 25 is fixedly connected to the top end of the threaded rod 24. A conveying roller 27 is rotatably connected between the sliders 26. A groove 28 is provided on both sides of the bracket 1, and the outer surface of the slider 26 is in contact with the inner wall of the groove 28.
[0032] The working principle of a breathable film machine for producing sanitary napkin packaging film according to an embodiment of this application is as follows: When it is necessary to adjust the tension of the conveyor roller 27, the second knob 25 at the top of the threaded rod 24 is rotated. The limiting plate 23 at the top of the guide rod 22 can prevent the slider 26 from falling off the guide rod 22. The sliding grooves 28 on both sides of the bracket 1 are in contact with the outer surface of the slider 26, further restricting the movement direction of the slider 26 and ensuring the stability of the adjustment process. The slider 26 threadedly connected to the threaded rod 24 will move up and down on the outer surface of the threaded rod 24. The other slider 26 movably connected to the guide rod 22 plays a guiding role, ensuring that the two sliders 26 move up and down synchronously to adjust the height of the conveyor roller 27, thereby achieving the purpose of adjusting the tension of the packaging film during the winding process.
[0033] The motor 304 is started, and its output end drives the first rotating shaft 301 to rotate. Since the end of the first rotating shaft 301 is fixedly connected to the sprocket 302, and the sprockets 302 are connected by the chain 303, the rotation of one of the first rotating shafts 301 will drive the other first rotating shaft 301 to rotate synchronously. When the first rotating shaft 301 rotates, the roller 305 fixedly sleeved on its outer surface also rotates. The spring 312 keeps the pawl 310 in a meshing state with the ratchet 309, which plays a one-way limiting role and prevents the winding roller 306 from reversing during the winding process. The extrusion plate 313 straightens the packaging film, and the winding roller 306 placed on the outer surface of the roller 305 begins to wind up the breathable film under the action of friction, thereby achieving the purpose of effectively winding up the packaging film.
[0034] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. A breathable film machine for sanitary napkin packaging film production, comprising a support (1), characterized in that: The support (1) is internally provided with a plurality of adjusting assemblies (2), and the lower part of the support (1) is fixedly connected with a winding assembly (3); The winding assembly (3) comprises symmetrically distributed first rotating shafts (301), the ends of the first rotating shafts (301) are fixedly connected with chain wheels (302), the chain wheels (302) are meshedly connected with a chain (303), one side of the support (1) is fixedly connected with a motor (304), the output end of the motor (304) extends into the support (1) and is fixedly connected with the first rotating shafts (301), the outer surfaces of the first rotating shafts (301) are fixedly sleeved with rollers (305), the outer surfaces of the rollers (305) are placed with winding rollers (306), the support (1) is movably sleeved with second rotating shafts (307) between the support (1), the other ends of the second rotating shafts (307) are fixedly connected with ratchets (309), the outer surfaces of the ratchets (309) are meshedly connected with pawls (310), and the outer surfaces of the second rotating shafts (307) are fixedly connected with extrusion plates (313); the extrusion plates (313) are in close contact with the outer surfaces of the winding rollers (306) on one side.
2. A breathable film machine for sanitary napkin packaging film production as claimed in claim 1, characterized in that: The adjusting assembly (2) comprises symmetrically distributed support plates (21), one side of each of the support plates (21) is fixedly connected with the support (1), the top surface of one of the support plates (21) is fixedly connected with a guide rod (22), the top surface of the other support plate (21) is rotatably connected with a threaded rod (24), the top end of the threaded rod (24) is fixedly connected with a second knob (25), both sides of the support (1) are provided with sliding blocks (26), one side of one of the sliding blocks (26) is threadedly sleeved with the threaded rod (24), one side of the other sliding block (26) is movably sleeved with the guide rod (22), the top end of the threaded rod (24) is fixedly connected with the second knob (25), and the sliding blocks (26) are rotatably connected with conveying rollers (27) between the sliding blocks (26).
3. A breathable film machine for sanitary napkin packaging film production as claimed in claim 1, characterized in that: One end of the second rotating shaft (307) is fixedly connected with a first knob (308).
4. The breathable film machine for sanitary napkin packaging film production of claim 1, wherein: One side of the support (1) is fixedly connected with a fixed block (311), and the fixed block (311) is fixedly connected with a spring (312) between the pawl (310).
5. A breathable film machine for sanitary napkin packaging film production as claimed in claim 1, characterized in that: The outer surface of the roller (305) is in close contact with the outer surface of the winding roller (306).
6. A breathable film machine for sanitary napkin packaging film production as claimed in claim 2, characterized in that: The top end of the guide rod (22) is fixedly connected with a limiting plate (23).
7. A breathable film machine for sanitary napkin packaging film production as claimed in claim 2, characterized in that: Both sides of the support (1) are provided with sliding grooves (28), and the outer surfaces of the sliding blocks (26) are in close contact with the inner walls of the sliding grooves (28).