Film nylon airtight zipper
By injecting polyurethane and polyurethane film into the nylon airtight zipper to form an equilateral triangular convex rib structure, the problems of difficult opening and closing and insufficient sealing of nylon airtight zippers are solved. This achieves high strength, labor-saving sealing and multiple protective performance, adapts to different sealing bag materials, and improves user experience and production efficiency.
Patent Information
- Application Number
- CN202423003336.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-12-06
AI Technical Summary
Existing nylon airtight zippers have high resistance to opening and closing during use, require the application of lubricating oil, and are prone to water and air leakage when bent at 90 degrees. The existing design has problems of being laborious and having insufficient sealing.
An equilateral triangular convex structure is precisely injected into the reverse side of the woven tape and teeth using polyurethane and polyurethane film. The woven tape and teeth are separated by a special clamp, and a polyurethane film is attached to one side. After the pull head is installed, a tight connection is formed. The head and tail are sealed using an injection molding machine to enhance the structural strength and sealing performance.
It achieves multiple excellent properties such as easy opening and closing, waterproof, gas-proof, UV-resistant, corrosion-resistant, and wear-resistant. It is adaptable to different sealing bag materials, ensuring the efficient sealing and durability of sealing bags in various application scenarios, reducing production costs and improving production efficiency.
Smart Images
Figure CN223554427U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to airtight zipper technical field, concretely relates to a pasting film nylon airtight zipper. BACKGROUND
[0002] Nylon airtight zipper is a kind of zipper made of nylon material, its characteristics are that special waterproof material is added to the tooth part of zipper, and the zipper is integrated with fabric by high-temperature pouring, so that the zipper has waterproof function while not leaking, and the zipper is usually used in clothes and articles needing waterproof, windproof and dustproof functions.
[0003] The existing single-sided tooth nylon woven airtight zipper is provided with a layer of TPU elastic plastic on the toothless side, and the chain teeth are separated, a small ridge is pressed on the occlusion side of the zipper tooth by high-temperature roller pressing, the TPU on the single side is extruded by the closure of the zipper to achieve the effect of waterproof and airtight, but the existing nylon airtight zipper has large resistance during the pulling process of zipper head, so it is very laborious to pull, and it is necessary to frequently apply lubricating oil to the TPU surface to improve the laboriousness of pulling, and because the small ridge pressed on the top of the occlusion side of the zipper tooth, there is a situation of water leakage and air leakage when the zipper is bent by 90 degrees. UTILITY MODEL CONTENTS
[0004] The utility model aims at providing a pasting film nylon airtight zipper to solve the problems in the above background.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:
[0006] A pasting film nylon airtight zipper, comprising:
[0007] Woven belt;
[0008] The woven belt is provided with two, and one end of the two woven belts is provided with teeth, the top end of the woven belt and the top end of the teeth are provided with polyurethane on one side, and the top end of the woven belt and the top end of the polyurethane are provided with polyurethane film on the other side, and the surface of the woven belt and the polyurethane film is provided with a surface layer.
[0009] The head end between the two woven belts is provided with a head seal, and the top end of the head seal is provided with a limiting strip, and the tail end between the two woven belts is provided with a tail seal.
[0010] Preferably, the two teeth are engaged and connected together.
[0011] Preferably, the two teeth are commonly movably connected with a puller.
[0012] Preferably, two said polyurethane is arranged as a right triangle structure on one side.
[0013] Preferably, two said polyurethane is arranged as a right triangle structure on one side.
[0014] Preferably, the woven belt is made of nylon material.
[0015] Compared with the prior art, the utility model has the beneficial effects that:
[0016] (1) by setting up polyurethane, polyurethane film and pull head, polyurethane material is injected accurately from the opposite side of the woven belt and the tooth, an equilateral triangle convex rib structure is shaped, then, the woven belt and the tooth on both sides are separated by using a special clamp, a high-quality polyurethane film is tightly attached to the opposite side of the woven belt and the tooth on one side and the convex rib side formed previously, then, the special pull head is installed, through the action of the pull head, the teeth on both sides are tightly pulled together, in this process, the polyurethane right triangle convex rib on both sides is fully extruded, forming a very firm sealing effect, so that the sealing bag has multiple excellent properties such as waterproof, airproof, ultraviolet resistance, corrosion resistance, hydrolysis resistance and wear resistance.
[0017] (2) according to the specific size requirement of the sealing bag, the length of the zipper part required can be cut flexibly, then, the head and tail sealing injection treatment is carried out by using an injection molding machine, finally, a zipper with high strength and excellent sealing performance is obtained, and the pulling and closing operation is also very labor-saving, in addition, the design also has high flexibility, can be adjusted according to the special requirements of different sealing bag materials, to meet the welding requirements between different materials. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is the plan view of the utility model;
[0019] Figure 2 It is the perspective view of the utility model;
[0020] Figure 3 It is the sectional perspective view of the utility model;
[0021] In the drawing: 1, woven belt; 2, tooth; 3, polyurethane; 4, polyurethane film; 5, surface layer; 6, head sealing; 7, limiting strip; 8, pull head; 9, tail sealing. DETAILED DESCRIPTION
[0022] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.
[0023] Embodiment one:
[0024] Please refer to Figure 1 - Figure 3 As shown in the figure, a film-attached nylon air-tight zipper comprises:
[0025] woven belts 1;
[0026] The woven belts 1 are provided with two, and one end of each of the two woven belts 1 is provided with a tooth 2, the top end side of the woven belt 1 and the top end side of the tooth 2 are both provided with polyurethane 3, the top end side of the woven belt 1 and the top end side of the polyurethane 3 are both provided with polyurethane film 4, and the surface of the woven belt 1 and the polyurethane film 4 are both provided with a surface layer 5.
[0027] The head end between the two woven belts 1 is provided with a head seal 6, and the top end side of the head seal 6 is provided with a limiting strip 7, and the tail end between the two woven belts 1 is provided with a tail seal 9.
[0028] As known from the above, polyurethane 3 is injected from the reverse side of the woven belt 1 and the tooth 2, the internal gap of the tooth 2 is filled, and a convex rib is formed, then the device is separated by a clamp, a layer of polyurethane film 4 is attached to the reverse side of the single-side woven belt 1 and the tooth 2 and the side surface of the convex rib, the width of the polyurethane film 4 on the side of the attached polyurethane 3 is greater than the width of the polyurethane 3, and the excess side of the polyurethane film 4 is folded down along the angle of one end of the polyurethane 3 and attached to the right-angled side of the polyurethane 3.
[0029] As Figure 2 and Figure 3 known, the two teeth 2 are engaged and connected together;
[0030] The two teeth 2 are movably connected with a puller 8.
[0031] As known from the above, in the production process, the zipper is accurately cut according to the actual size requirements of the sealing bag, so as to ensure that each section of the zipper can perfectly fit the length of the corresponding sealing bag, and then the special puller 8 is assembled on the cut zipper.
[0032] Then, the head and tail parts of the two sides of the woven tape 1 and the teeth 2 are sealed by injection molding using an injection molding machine, respectively forming a head seal 6 and a tail seal 9. This process not only enhances the overall structural strength of the zipper, but also further improves its sealing performance, ensuring that the zipper can still maintain excellent sealing effect during long-term use.
[0033] The zipper design has high flexibility and adaptability. According to the characteristics and requirements of different sealing bag materials, the zipper can be adjusted accordingly to meet the welding needs between different materials. This means that no matter what material the sealing bag is made of, the zipper can provide the best sealing effect and durability, ensuring that the sealing bag can perform its functions and values in various application scenarios. Ultimately, a zipper product with high strength and excellent sealing performance is obtained, providing a solid and reliable guarantee for the manufacture and use of sealing bags.
[0034] Example Two:
[0035] Reference Figure 1 As shown, one side of each of the two polyurethane 3 is set as a right triangle structure; one end of the two polyurethane 3 is tightly attached together; the woven tape 1 is set as nylon material.
[0036] As can be seen from the above, during the injection of polyurethane 3, a convex rib is formed, and the shape of the convex rib in the middle is an equilateral triangle. After the device is separated by a clamp, the convex rib on the opposite side of the single-sided woven tape 1 and the teeth 2 is a right triangle structure. After the puller 8 is installed, when the puller 8 is pulled, the teeth 2 on both sides will be tightly connected together, and the polyurethane 3 on both sides will also be in close contact with each other. In this process, the polyurethane 3 material will be fully extruded, thereby forming a firm sealing effect. This sealing mechanism not only ensures the waterproof and airproof performance of the product, but also makes it have multiple excellent properties such as ultraviolet resistance, corrosion resistance, hydrolysis resistance, and wear resistance.
[0037] Further, the design application is applied in a sealing bag, and polyurethane material 3 is precisely injected from the opposite side of the woven tape 1 and the teeth 2. This step not only completely fills the small gap inside the teeth 2, but also shapes an equilateral triangular convex rib structure. The convex rib protrudes from the surface of the filling material, enhancing the three-dimensional structure and sealing efficiency. Subsequently, a special clamp is used to accurately separate the two sides of the woven tape 1 and the teeth 2.
[0038] In the single side of the woven tape 1 and the opposite side of the tooth 2, and the convex rib side formed before, a layer of high-quality polyurethane film 4 is closely attached, the addition of this layer of film further improves the overall sealing and durability. Then, install the special pull head 8, through the action of the pull head 8, the two sides of the tooth 2 are tightly pulled together, in this process, the two sides of the polyurethane 3 right triangle convex rib is fully extruded, forming a very firm sealing effect, so as to ensure that the sealed bag has the multiple excellent performance of waterproof, airproof, anti-ultraviolet, corrosion resistance, hydrolysis resistance and wear resistance;
[0039] According to the specific size requirement of the sealed bag, the length of the zipper part required can be cut flexibly, then the head and tail sealing injection treatment is carried out by using the injection molding machine, finally a zipper with high strength and excellent sealing performance is obtained, and the pulling operation is also very labor-saving. In addition, the design also has high flexibility, and can be adjusted according to the special requirements of different sealed bag materials to meet the welding requirements between different materials, so that the sealed bag can exhibit the best sealing effect and durability in various application scenarios.
[0040] The design can be easily pulled together without oiling in actual use, greatly improving the user experience and operation convenience. At the same time, even at an inclination angle of less than 90 degrees, the design can still maintain excellent waterproof and air-tight performance, ensuring its reliable application in various complex environments.
[0041] In terms of production and manufacturing, the design optimizes the production process and material utilization rate, significantly improves production efficiency, reduces production cost, ensures excellent performance, and provides more economical and practical products for the market, further expanding the market application prospect of the product.
[0042] The standard parts used in the utility model can be purchased from the market, and the special-shaped parts can be ordered according to the description and the drawings. The specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art. The mechanical parts and equipment adopt conventional types in the prior art. The circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail. The contents not described in detail in the description belong to the prior art known to those skilled in the art.
[0043] In the description of the utility model, the terms "first" and "second" are used for description purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more features. The meaning of "multiple" is two or more, unless otherwise specifically limited.
[0044] In the present application, unless otherwise expressly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0045] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A film-coated nylon airtight zipper, characterized in that, include: Woven strap (1); Two braided strips (1) are provided, and one end of each braided strip (1) is provided with teeth (2). Polyurethane (3) is provided on one side of the top of the braided strip (1) and one side of the top of the teeth (2). A polyurethane film (4) is provided on the other side of the top of the braided strip (1) and the top of the polyurethane (3). A surface layer (5) is provided on the surface of the braided strip (1) and the polyurethane film (4). The two braided strips (1) are provided with a head seal (6) at their head ends. A limit strip (7) is provided on one side of the top of the head seal (6). The two braided strips (1) are provided with a tail seal (9) at their tail ends. One end of the two polyurethane (3) is tightly attached to each other. The braided strips (1) are made of nylon material. One side of each of the two polyurethane (3) is a right-angled triangle structure.
2. The film-coated nylon airtight zipper according to claim 1, characterized in that: The two teeth (2) are engaged together.
3. The film-coated nylon airtight zipper according to claim 1, characterized in that: A pull head (8) is connected between the two teeth (2) in a common moving and interlocking manner.