Metal wire magic tape and production method thereof

Abstract

The invention belongs to the technical field of hook-and-loop fasteners, and particularly relates to a metal wire hook-and-loop fastener and a production method thereof.The metal wire hook-and-loop fastener comprises a braid, a plurality of metal wires are arranged on one side of the braid, each metal wire is provided with a free end extending vertically, the free end of each metal wire is provided with a hook part, and the hook parts of the metal wires form a hook surface; the hook-and-loop fastener is adhered to the loop surface of the hook-and The braid and the metal wires are integrally woven and formed. Due to the fact that the metal wire has good mechanical performance such as toughness, when the metal wire is separated from the rough surface of the hook-and-loop fastener, the hook portion can elastically deform and reset, even if the metal wire is torn away from the rough surface of the hook-and-loop fastener repeatedly, good mechanical performance can still be kept, the problem of failure can be effectively avoided, and the service life of the hook-and-loop fastener is prolonged. And the attaching force between the hook surface and the hair surface can be increased. In addition, the hook face is made of the metal wire, the metal wire can avoid formation of static electricity, and therefore the problem that the hook-and-loop fastener generates static electricity is effectively avoided, and the use experience feeling is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of Velcro, and in particular relates to a metal wire Velcro and a production method. Background Art

[0002] Velcro is a special adhesive material that is usually made up of two different fabrics: a "hook side" with small hooks and a "loop side" or "fleece side" with small loops. When the two sides come into contact, the hooks hook into the loops, forming a strong connection. Velcro is widely used in clothing, shoes, bags, toys, medical devices, and various other products because it is easy to use and can be re-adhesive.

[0003] In the prior art, the hook surface of Velcro includes a webbing, and a plastic hook structure formed by a relatively high hardness plastic material such as nylon is arranged on one side of the webbing; the fleece surface is arranged on one side of the webbing and is made of a low hardness polymer fiber material. Since Velcro will be repeatedly bonded and torn off; and since the rigidity, elasticity and other mechanical properties of the plastic hook have certain limitations, at the moment when the hook surface is separated from the fleece surface, the hook portion of the hook surface will be deformed or even straightened. After repeated use, the hook portion of the hook surface will form mechanical fatigue and lose mechanical properties, resulting in the problem of being unable to hook and stick with the fleece surface. As a result, the lifespan of repeated use is poor. In addition, since both the hook surface and the fleece surface are polymer materials, static electricity will be generated during the process of mutual bonding and separation, and dust will be absorbed. Summary of the invention

[0004] The purpose of the present invention is to provide a metal wire Velcro and a production method, which are used to solve the problem that the Velcro hook surface uses plastic hooks, which is prone to mechanical fatigue failure and static electricity.

[0005] To achieve the above-mentioned purpose, an embodiment of the present invention provides a metal wire Velcro, including a webbing, a plurality of metal wires are arranged on one side of the webbing, the metal wires have a free end extending vertically, the free end of the metal wire is provided with a hook portion, and the hook portions of the plurality of metal wires form a hook surface for adhering to the fleece surface of the Velcro.

[0006] Furthermore, the metal wire passes through the warp yarn and / or weft yarn of the webbing and is bent upward to form two vertically extending free ends, and the weft yarn or warp yarn of the webbing fixes the metal wire.

[0007] Furthermore, the metal wire is a steel wire; the diameter of the metal wire is 0.1 mm to 0.2 mm.

[0008] The above one or more technical solutions in the Velcro hook surface structure provided by the embodiment of the present invention have at least the following technical effects:

[0009] The metal wire Velcro of the present invention is a metal wire arranged on one side of a ribbon, one end of the metal wire extends vertically, and the free end of the metal wire forms a hook portion, so that the metal wire forms a hook surface on one side of the ribbon. Since the metal wire has good mechanical properties such as toughness, when separated from the hairy surface of the Velcro, the hook portion can be elastically deformed and reset, and even if it is repeatedly torn off from the hairy surface of the Velcro, it can still maintain good mechanical properties, effectively avoid the problem of failure, increase the service life of the Velcro, and also increase the adhesion between the hook surface and the hairy surface. In addition, since the hook surface adopts metal wire, the metal wire can avoid the formation of static electricity, thereby effectively avoiding the problem of static electricity generated by the Velcro, and increasing the user experience.

[0010] A method for producing a metal wire Velcro is used to process the Velcro hook surface structure. The Velcro hook surface processing method comprises the following steps:

[0011] Step 100, using a plurality of first yarns and a plurality of metal wires as warp yarns, wherein the metal wires are arranged at intervals from the first yarns, and each of the metal wires passes through a lifting device of a loom; and using at least one second yarn as a weft yarn;

[0012] Step 200, the weft yarns and the warp yarns are woven together; during the weft yarns and the warp yarns being woven together, the lifting device intermittently lifts the metal wires upwards so that the metal wires are intermittently woven with the weft yarns, forming a metal wire arch structure on the woven ribbon, and a bending portion is formed at the top of the metal wire arch structure;

[0013] Step 300: cutting along the top of the metal wire arch structure to form the bent portion into the hook portion.

[0014] Furthermore, a slurry coating and curing step is provided between step 200 and step 300 to increase the strength of the webbing and the firmness of the metal wire and the webbing.

[0015] Furthermore, the loom is also provided with a plurality of spacers, and the lifting device lifts the metal wire and moves it back and forth on both sides of the spacer, so that the lifting device drives the metal wire to wind around the spacer, and the top side of the spacer is used to form and shape the bending portion of the metal wire.

[0016] Furthermore, the length direction of the spacer is along the front side of the weaving machine, so that the formed metal wire is still supported on the spacer.

[0017] Further, step 300 includes a shearing device, which shears the arched structure of the metal wire; the shearing device includes a carrier plate, scissors and a conveying mechanism, the conveying mechanism is arranged on one side of the carrier plate and is used to convey the webbing, the scissors are arranged on the other side of the carrier plate, and a guide groove is formed between the scissors and the carrier plate, and the webbing passes through the guide groove; the scissors include a fixed knife, a movable knife and a driving member, the movable knife and the fixed knife are superimposed on each other, the driving member is connected to the movable knife, and is used to push the movable knife to reciprocate, the ends of the movable knife and the fixed knife are provided with serrated blades, and face the guide groove, the webbing passing through the guide groove makes the arched structure of the metal wire face the blade, the movable knife and the fixed knife move alternately to cut off the arched structure of the metal wire.

[0018] Furthermore, the mouth of the guide groove faces upward, so that the side of the carrier plate forms a corner of the webbing, and the webbing turns at the corner so that the metal wire arch structure at the corner faces the blade.

[0019] Furthermore, the ribbon loom is provided with a baking device, which heats the ribbon with thermal radiation, so that the first yarn and the second yarn of the ribbon shrink and are shaped, thereby fixing the metal wire.

[0020] The above one or more technical solutions in the method for producing metal wire Velcro provided by the embodiment of the present invention have at least the following technical effects:

[0021] First, a plurality of first yarns and a plurality of metal wires are used as warp yarns, and the metal wires are arranged at intervals from the first yarns, and each metal wire passes through a lifting device of a weaving machine respectively; at least one second yarn is used as weft yarn; the weft yarns are woven with the warp yarns; during the weft yarns and the warp yarns are woven with each other, the lifting device intermittently lifts the metal wires upwards, so that the metal wires are woven with the weft yarns at intervals, and a metal wire arch structure is formed on the woven ribbon, and a bending portion is formed at the top of the metal wire arch structure; finally, the metal wire arch structure is cut along the top of the metal wire arch structure, so that the bending portion forms a hook portion. The present invention uses the method of weaving the metal wire and the weft yarn to form a hook surface, which not only facilitates the metal wire molding, but also improves the molding efficiency, and enables the metal wire to form a whole with the ribbon. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1A structural diagram of a metal wire Velcro provided in an embodiment of the present invention.

[0024] Figure 2 for Figure 1 A partial enlarged view of .

[0025] Figure 3 A schematic diagram of a method for producing a metal wire Velcro provided in an embodiment of the present invention.

[0026] Figure 4 for Figure 3 A partial enlarged view of .

[0027] Figure 5 A schematic diagram of a shearing device in a method for producing metal wire Velcro provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0028] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0029] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0032] In one embodiment of the Velcro hook structure of the present invention, please refer to Figure 1 and Figure 2 The metal wire Velcro includes a webbing 100, a plurality of metal wires 200 are arranged on one side of the webbing 100, the metal wires 200 have free ends extending vertically, a hook portion 201 is provided at the free end of the metal wire 200, and the hook portions 201 of the plurality of metal wires 200 form a hook surface 210 for sticking to the fleece surface of the Velcro.

[0033] The metal wire Velcro of this embodiment is provided with a metal wire 200 on one side of the webbing 100, one end of the metal wire 200 extends vertically, and the free end of the metal wire 200 forms a hook portion 201, so that the metal wire 200 forms a hook surface 210 on one side of the webbing. Since the metal wire has good mechanical properties such as toughness, when separated from the hairy surface of the Velcro, the hook 201 can be elastically deformed and reset, and even if it is repeatedly torn off from the hairy surface of the Velcro, it can still maintain good mechanical properties, effectively avoid the problem of failure, increase the service life of the Velcro, and also increase the adhesion between the hook surface and the hairy surface. In addition, since the hook surface adopts the metal wire 200, the metal wire 200 can avoid the formation of static electricity, thereby effectively avoiding the problem of static electricity generated by the Velcro, and increasing the user experience.

[0034] Furthermore, the metal wire 200 passes through the warp and / or weft of the webbing 100 and is bent upward to form two vertically extending free ends, and the weft or warp of the webbing 100 fixes the metal wire 200, so that the metal wire 200 can be more firmly arranged on one side of the webbing 100.

[0035] Preferably, the metal wire 200 is a steel wire or a stainless steel wire. Since the steel wire has good toughness and elasticity, the service life of the metal wire 200 is ensured. More preferably, the diameter of the metal wire 200 is 0.1 mm to 0.2 mm. The stainless steel wire has a good anti-oxidation function and increases the service life. More preferably, the webbing 100 can be made of fireproof materials, such as synthetic fibers such as aramid 1313 and 1414, so that the hook surface structure has good fireproof and corrosion effects and can be used in special environments. In addition, the suede structure matched with the hook surface can also use synthetic fibers such as aramid 1313 and aramid 1414 as the base material of the webbing, and use fireproof fine fibers as the suede.

[0036] The metal wire Velcro production method of the above embodiment, specifically, refers to Figure 3 , including the following steps:

[0037] Step 100, a plurality of first yarns 1 and a plurality of metal wires 2 are used as warp yarns, and the metal wires 2 are arranged at intervals from the first yarns 1, and each metal wire 2 passes through a lifting device of the loom (as shown in the attached figure); at least one second yarn 3 is used as the weft yarn. In this step, the loom and the lifting device of the loom belong to conventional technology in the art, so their specific structure and working principle are not described in detail in this embodiment.

[0038] In step 200, the weft yarns and the warp yarns are woven together. During the weft yarns and the warp yarns are woven together, the lifting device intermittently lifts the metal wire 2 upwards so that the metal wire 2 is intermittently woven with the weft yarns, forming a metal wire arch structure 20 on the woven ribbon 100, and a bending portion 21 is formed at the top of the metal wire arch structure 20.

[0039] Step 300 , cutting along the top of the metal wire arch structure 20 , so that the bent portion 21 forms a hook portion.

[0040] In this embodiment, the hook surface is formed by weaving the metal wire 2 with the weft yarn, which not only facilitates the molding of the metal wire, but also improves the molding efficiency and enables the metal wire to form a whole with the ribbon.

[0041] Furthermore, a slurry coating and curing step is provided between step 200 and step 300 to increase the strength of the webbing 100 and make the webbing 100 and the metal wire 2 more firm and stable.

[0042] Further, refer to Figure 3 and Figure 4The loom is also provided with a plurality of spacers 4, and the lifting device lifts the metal wire 2 to move back and forth on both sides of the spacers 4, so that the lifting device drives the metal wire 2 to wind around the spacers 4, and the top side of the spacers 4 is used to form and shape the bending portion 21 of the metal wire 2. In this embodiment, the lifting device can be moved laterally, so that the lifting device drives the metal wire 2 to move back and forth on both sides of the spacers 4 and weave with the weft yarn. The spacers 4 support the woven metal wire 2, so that the metal wire 2 can be shaped by the spacers 4.

[0043] Further, refer to Figure 3 The length direction of the spacer 4 is along the front side of the weaving machine, so that the woven metal wire 2 is still supported on the spacer 4. Therefore, the metal wire arch structure 20 can be continuously supported and shaped by the spacer 4, thereby increasing the stability of the bent portion 21 after bending.

[0044] Further, step 300 includes a shearing device 300, and the shearing device 300 shears the arched structure 20 of the metal wire 2. Specifically, referring to Figure 5 The shearing device 300 includes a carrier plate 310, a pair of scissors 320 and a conveying mechanism 330. The conveying mechanism 330 is arranged on one side of the carrier plate 310 for conveying the webbing. The pair of scissors 320 is arranged on the other side of the carrier plate 310. A guide groove 301 is formed between the pair of scissors 320 and the carrier plate 310, and the webbing passes through the guide groove 301. The scissors 320 include a fixed knife 321, a movable knife 322 and a driving member 323. The movable knife 322 and the fixed knife 321 are superimposed on each other. The driving member 323 is connected to the movable knife 322 and is used to push the movable knife 322 to reciprocate. The ends of the movable knife 322 and the fixed knife 321 are provided with a serrated blade and face the guide groove 301. The webbing passing through the guide groove 301 makes the metal wire arching structure 20 face the blade. The movable knife 322 and the fixed knife 321 move alternately to cut the metal wire arching structure 20 along the bending portion 21.

[0045] Furthermore, the mouth of the guide groove 301 faces upward, so that the side of the carrier plate 310 forms a corner of the webbing, and the webbing turns at the corner so that the metal wire arching structure 20 at the corner faces the blade, so that the shearing device 300 can cut the metal wire arching structure 20 along the bending portion 21.

[0046] Furthermore, the ribbon loom is provided with a baking device, which heats the ribbon by thermal radiation, so that the first yarn 1 and the second yarn 3 of the ribbon shrink and set, and fix the metal wire 2. Specifically, the baking device can be a thermal radiation lamp.

[0047] The present invention also provides a Velcro loop structure for use with the hook surface of the above embodiment. The difference between the Velcro loop structure of this embodiment and the Velcro hook surface structure of the above embodiment is that the metal wire 2 is replaced by flexible fibers, and the woven arched part does not need to be cut off, so that the Velcro loop structure can be woven and formed.

[0048] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A metal wire Velcro, characterized in that: The invention comprises a webbing, a plurality of metal wires are arranged on one side of the webbing, the metal wires have free ends extending vertically, the free ends of the metal wires are provided with hooks, and the hooks of the plurality of metal wires form a hook surface for sticking to the fleece surface of the Velcro.

2. The metal wire Velcro according to claim 1, characterized in that: The metal wire passes through the warp yarn and / or the weft yarn of the ribbon and is bent upward to form two vertically extending free ends. The weft yarn or the warp yarn of the ribbon fixes the metal wire.

3. The metal wire Velcro according to claim 2, characterized in that: The metal wire is a steel wire; the diameter of the metal wire is 0.1 mm to 0.2 mm.

4. A method for producing a metal wire Velcro, characterized in that: Used for processing the Velcro hook surface structure according to any one of claims 1 to 3, the Velcro hook surface processing method comprises the following steps: Step 100, using a plurality of first yarns and a plurality of metal wires as warp yarns, wherein the metal wires are arranged at intervals from the first yarns, and each of the metal wires passes through a lifting device of a loom; and using at least one second yarn as a weft yarn; Step 200, the weft yarns and the warp yarns are woven together; during the weft yarns and the warp yarns being woven together, the lifting device intermittently lifts the metal wires upwards so that the metal wires are intermittently woven with the weft yarns, forming a metal wire arch structure on the woven ribbon, and a bending portion is formed at the top of the metal wire arch structure; Step 300: cutting along the top of the metal wire arch structure to form the bent portion into the hook portion.

5. The method for producing a metal wire Velcro according to claim 4, characterized in that: Between step 200 and step 300, a slurry coating and curing step is provided to increase the strength of the webbing and the firmness of the metal wire and the webbing.

6. The method for producing a metal wire Velcro according to claim 4, characterized in that: The ribbon loom is also provided with a plurality of spacers. The lifting device lifts the metal wire and moves it back and forth on both sides of the spacer, so that the lifting device drives the metal wire to wind around the spacer. The top side of the spacer is used to form and shape the bending portion of the metal wire.

7. The method for producing a metal wire Velcro according to claim 6, characterized in that: The length direction of the spacer extends to the front side of the ribbon loom, so that the formed metal wire is still supported on the spacer.

8. The method for producing a metal wire Velcro according to any one of claims 4 to 7, characterized in that: Step 300 includes a shearing device, which shears the arched structure of the metal wire; the shearing device includes a carrier plate, scissors and a conveying mechanism, the conveying mechanism is arranged on one side of the carrier plate and is used to convey the webbing, the scissors are arranged on the other side of the carrier plate, and a guide groove is formed between the scissors and the carrier plate, and the webbing passes through the guide groove; the scissors include a fixed knife, a movable knife and a driving member, the movable knife and the fixed knife are superimposed on each other, the driving member is connected to the movable knife, and is used to push the movable knife to reciprocate, the ends of the movable knife and the fixed knife are provided with serrated blades, and face the guide groove, the webbing passing through the guide groove makes the arched structure of the metal wire face the blade, the movable knife and the fixed knife move alternately, and cut off the arched structure of the metal wire.

9. The method for producing a metal wire Velcro according to claim 8, characterized in that: The mouth of the guide groove faces upward, so that the side of the carrier plate forms the corner of the webbing. The webbing turns at the corner so that the metal wire arch structure at the corner faces the knife edge.

10. The method for producing a metal wire Velcro according to any one of claims 4 to 7, characterized in that: The ribbon loom is also provided with a baking device, which heats the ribbon with thermal radiation, so that the first yarn and the second yarn of the ribbon shrink and are shaped, thereby fixing the metal wire.

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