TWI726319B - Method for manufacturing fastener and fastener - Google Patents

Abstract

A method for manufacturing a fastener includes: providing a substrate with a plurality of through holes; correspondingly passing the plurality of thread bodies through the plurality of through holes of the substrate, so that the ends of the plurality of thread bodies are from the bottom The material is protruding; the ends of the plurality of thread bodies and the substrate are welded to fix the plurality of threads to the substrate; the plurality of threads are cut to form a freedom relative to the ends of the plurality of threads fixed on the substrate And heating the plurality of wires from the direction of the side of the free end of the plurality of wires, so that the plurality of wires form a joint unit of the fastener, wherein each joint unit has a head formed by the free end and Connect to the stem of the substrate. On the other hand, the present invention also includes fasteners manufactured by the aforementioned method of manufacturing fasteners.

Description

Method for manufacturing fastener and fastener

The present invention relates to a method for manufacturing fasteners, and in particular to a method for manufacturing fasteners without using other adhesives, and to fasteners manufactured by this method.

There are known fasteners used to mechanically join two objects. Such fasteners are generally composed of a base material and a plurality of joining units extending from the base material. After the fasteners are set on the two objects to be joined, the two objects can be mechanically joined by the mutual engagement between the joining units provided by the fasteners.

The known method for manufacturing this kind of fastener is to fix the structure forming the joint unit on the substrate by an adhesive (for example, back glue, etc.), and to form a specific shape through subsequent processing of the structure的joining unit. However, in this known manufacturing method, due to the use of adhesive, there is usually a step of removing the adhesive, and in this removing step, the structure that has been fixed to the substrate may fall off. This reduces the yield of the final product.

In view of this, the inventor has worked hard to improve and develop an improved solution for the conventional method for manufacturing fasteners, which is superior to the above-mentioned conventional method for manufacturing fasteners.

The purpose of the present invention is to provide a method for manufacturing a fastener, which can manufacture a fastener without using an adhesive, thereby improving the yield of the manufactured fastener.

The method for manufacturing a fastener according to the present invention includes: providing a substrate with a plurality of through holes; correspondingly passing the plurality of thread bodies through the plurality of through holes of the substrate, so that the ends of the plurality of thread bodies are removed from The substrate is protruding; the ends of the plurality of threads and the substrate are welded to fix the plurality of threads to the substrate; the plurality of threads are cut to form an opposite end to the ends of the plurality of threads fixed on the substrate Free end; and heating the plurality of wires from the direction of the side of the free end of the plurality of wires, so that the plurality of wires form a joint unit of the fastener, wherein each joint unit has a head formed by the free end And the stem connected to the substrate.

Preferably, in the method for manufacturing a fastener according to the present invention, the ends of the plurality of wires and the substrate can be welded together by ultrasonic welding.

Preferably, in the method for manufacturing a fastener according to the present invention, the substrate and the plurality of thread bodies can be made of the same plastic material. More preferably, the plastic material can be nylon or PP material.

Preferably, in the method for manufacturing a fastener according to the present invention, the substrate and the plurality of thread bodies can be made of different plastic materials.

Preferably, in the method for manufacturing a fastener according to the present invention, before the plurality of thread bodies are correspondingly passed through the plurality of through holes of the substrate, the plurality of thread bodies may be passed through the alignment jig and The plurality of through holes of the substrate are aligned.

Preferably, in the method for manufacturing a fastener according to the present invention, the plurality of through holes of the substrate may be punched holes formed by punching. More preferably, a plurality of through holes may be configured to be arranged in different patterns.

Preferably, in the method for manufacturing a fastener according to the present invention, the ends of the plurality of thread bodies protrude from the substrate by about 1 mm.

Preferably, in the method for manufacturing a fastener according to the present invention, the diameter of the through hole of the substrate is 1.2 to 1.5 times the diameter of the wire body.

Preferably, in the method for manufacturing a fastener according to the present invention, a heating plate is provided to heat a plurality of wires in a non-contact manner, so that the free end forms the head of the joint unit. More preferably, the surface of the heating plate facing the plurality of wire bodies has different temperature regions, and the configuration is such that the heating degree of the plurality of wire bodies is different from each other.

Preferably, in the method for manufacturing a fastener according to the present invention, a plurality of wire bodies are heated by a contact heating method, so that the free end forms the head of the joint unit.

On the other hand, the present invention also provides a fastener made by the above method for manufacturing a fastener, the fastener includes: a substrate; and a plurality of joint units formed on the substrate, each The joining unit includes a stem part connected to the substrate at one end and a head located at the other end of the stem part, wherein the stem part has a length along the extending direction of the joining unit, and the length is configured to be able to be adjusted according to the degree of heating when the fastener is manufactured. The head has a diameter, and the diameter is configured to vary according to the degree of heating during the manufacture of the fastener.

Preferably, in the fastener according to the present invention, a plurality of joining units are configured to be arranged on the substrate to form a pattern.

Preferably, in the fastener according to the present invention, the heating degree of at least two of the plurality of connecting units is different from each other when the fastener is manufactured, so that one of the at least two connecting units with a higher degree of heating The joining unit has a stem with a shorter length and a head with a larger diameter, and the other joining unit of the at least two joining units with a lower degree of heat has a stem with a longer length and a head with a smaller diameter. More preferably, the at least two bonding units with different degrees of heat receiving from each other may be configured to form a pattern.

To sum up, in the method for manufacturing fasteners according to the present invention, the substrate and the wire body can be firmly fixed together by welding, without the use of other adhesives, thereby avoiding moving Falling off occurs during the process of removing the adhesive. Therefore, the method for manufacturing fasteners of the present invention can greatly improve the yield of the manufactured fasteners.

On the other hand, in the method for manufacturing a fastener according to the present invention, since different wire bodies can be configured to have different heating degrees, the joint unit formed by the wire bodies can have variable lengths according to the heating degree. Stems and heads with variable diameters, therefore, the manufactured fasteners can be directly patterned by the arrangement of joint units with stems of different lengths and heads of different diameters, providing users with special visual effects , And no need to use other molds or devices for secondary processing.

In addition, in the method for manufacturing a fastener according to the present invention, since the plurality of thread bodies can be configured to form different patterns through the through holes arranged in different patterns formed on the substrate, the plurality of thread bodies The formed joint unit can therefore provide different visual effects for users of the fastener.

The more detailed description and advantages of the present invention will become clearer by referring to the accompanying drawings in the description of the following embodiments.

Hereinafter, the method for manufacturing a fastener according to the present invention will be explained with reference to FIGS. 1 to 6.

First, as shown in FIG. 1, a substrate 1 is provided, and the substrate 1 has a plurality of through holes 10. Preferably, these through holes 10 are punched holes formed by punching, and their arrangement can be designed according to the type of fastener to be formed. In this embodiment, the through holes 10 are configured to be arranged in an array pattern, but it is not limited to this. For example, according to the design requirements of the finally formed fastener, the through holes 10 may be configured to be arranged in other patterns (described in detail later).

Next, as shown in FIGS. 2 and 3, the plurality of thread bodies 2 are correspondingly passed through the plurality of through holes 10 of the substrate 1, so that the ends 20 of the plurality of thread bodies 2 protrude from the substrate 1. In this case, the end 20 of the thread body 2 preferably protrudes from the substrate 1 by a distance of about 1 mm. In addition, the diameter of the through hole 10 is preferably 1.2 to 1.5 times the diameter of the wire body 2 passing therethrough.

Regarding the step of correspondingly passing a plurality of thread bodies 2 through the plurality of through holes 10 of the substrate 1, it is preferable to provide an alignment jig (not shown) prepared in advance, which includes a position and a bottom The position of the through hole of the material is corresponding to the hole, and the alignment jig is set on the path of the plurality of thread bodies being guided toward the substrate. Therefore, the plurality of thread bodies 2 will pass through the alignment jig before passing through the plurality of through holes 10 of the substrate 1, and then align with the plurality of through holes 10 of the substrate 1. In other words, by providing an alignment jig, the plurality of thread bodies 2 can pass through the plurality of through holes 10 of the substrate 1 more accurately.

Next, as shown in FIG. 4, the ends 20 of the plurality of wires 2 and the substrate 1 are welded. In this embodiment, it is preferable to weld the ends 20 of the plurality of wires 2 and the substrate 1 by ultrasonic welding. Specifically, the substrate 1 and the plurality of thread bodies 2 can be made of the same plastic material. The plastic material can preferably be, for example, nylon or PP, and the plastic material can be connected to each other by ultrasonic welding. Welding. However, those skilled in the art should understand that the substrate 1 and the plurality of wires 2 can also be made of different plastic materials, as long as they can be welded to each other by ultrasonic welding.

In this way, the ends 20 of the plurality of thread bodies 2 are thermally melted and substantially fill the through holes 10 of the substrate 1, so that the plurality of thread bodies 2 are fixed to the substrate 1.

Next, as shown in Figure 5, on one side of the substrate 1, a plurality of thread bodies 2 are cut so that the thread bodies 2 form a free end 21 which is opposite to the thread body 2 fixed on the substrate 1 End 20.

Finally, as shown in FIG. 6, the plural thread bodies 2 fixed to the substrate 1 are heated from the direction of the free end 21 side of the plural thread bodies 2 to form the joining unit of the fastener as shown in FIG. 7A 3. Wherein, each joining unit 3 includes a stem 30 connected to the base material 1 and a head 31 formed by melting the free end 21. In this embodiment, the heating method adopts a non-contact heating method in which a heating plate 8 is provided above the free end 21. However, a contact heating method can also be used as the heating method of the present invention.

Furthermore, the heating plate 8 can be a flat heating plate with the same temperature on the surface facing the plurality of wire bodies 2 so that the heating degree of the plurality of wire bodies 2 corresponding to the lower side of the heating plate is equal to each other, thereby making them free. The melting degrees of the ends 21 are the same as each other to form a joint unit 3 having a head 31 with the same diameter and a stem 30 with the same length, as shown in FIGS. 7A and 7B.

However, the present invention can also use a heating plate having different temperature regions (for example, a concave-convex pattern formed at different distances from the plurality of wires) on the surface facing the plurality of wire bodies 2, so that the corresponding position The heating degree of the plurality of thread bodies under different temperature regions is different from each other, and the melting degree of the free ends thereof is different from each other, so as to form the heads 31A, 31A' with different diameters and the stems 30A, 30A' with different lengths. The joining units 3A, 3A' are as shown in FIG. 8 (will be described in further detail later).

Note that although in this embodiment, the head of the formed joint unit is rounded, it is not limited to this in fact. In other words, according to the design requirements of different fasteners, the head of the joint unit can also be Further processing into other shapes.

It can be understood from the above description that, in the method for manufacturing a fastener according to the present invention, the substrate and the wire body can be firmly fixed together by welding, without the use or the aid of any bonding. Because no adhesive is used or with the help of any adhesive, of course, the thread will not fall off the substrate during the process of removing the adhesive. Therefore, with the method for manufacturing fasteners of the present invention, the yield of the manufactured fasteners can be greatly improved.

On the other hand, in the method for manufacturing a fastener according to the present invention, since the heating degree of the plurality of wire bodies during the heating process can be set to be different from each other, the joint units formed by the wire bodies can therefore have different lengths. The stems and heads of different diameters. In this case, in order to provide special visual effects, the heating plate can be designed to have different temperature zones to form joint units with stems of different lengths and heads of different diameters. These joint units can be directly formed pattern. In other words, with the method for manufacturing fasteners according to the present invention, fasteners with pattern changes can be directly manufactured in a simple manner, without the need for additional molds or devices for secondary processing.

In addition, in the method for manufacturing fasteners according to the present invention, since the through holes of the substrate can be arranged in different patterns (ie, different arrangements or arrangement densities, etc.), a plurality of roots passing therethrough The thread bodies will be arranged in different patterns correspondingly, so that the joint unit formed by a plurality of thread bodies can provide fasteners with special visual effects.

In addition, it should be understood that in the method for manufacturing a fastener according to the present invention, a bottom plate with through holes arranged in different patterns and a heating plate with different temperature regions can be used at the same time to form a The effect of fasteners.

7A and 7B show an example of a fastener manufactured by the method for manufacturing a fastener according to the present invention.

As shown in FIG. 7A, the fastener made by the method for manufacturing a fastener according to the present invention includes a base material 1 and a plurality of joining units 3, and each joining unit 3 includes a stem 30 connected to the base material 1 at one end, And a head 31 located at the other end of the stem 30, wherein the stem 30 has the same length and the head 31 has the same diameter. As shown in FIG. 7B, a plurality of bonding units 3 are arranged in an array pattern.

Specifically, the fasteners shown in FIGS. 7A and 7B are manufactured by using a bottom plate having through holes arranged in an array pattern (that is, a plurality of wires pass through these through holes to form an array). Pattern arrangement) and a fastener formed by the combination of a heating plate with a single temperature zone. Therefore, since the plurality of wires forming the bonding unit 3 have the same heating degree and are arranged in an array pattern, the formed bonding unit 3 has a head 31 with the same diameter and a stem 30 with the same length and is arranged in an array pattern.

Fig. 8 shows another example of a fastener manufactured by the method for manufacturing a fastener according to the present invention. This fastener includes a substrate 1 and a plurality of joining units 3A, 3A', each joining unit 3A, 3A' includes a stem 30A, 30A' connected to the substrate 1 at one end, and the other end of the stem 30A, 30A' The heads 31A, 31A'.

Unlike the fasteners shown in FIGS. 7A and 7B, in the example shown in FIG. 8, the fastener has joint units 3A, 3A' whose stem length and head diameter are different from each other. This type of fastener is used in the manufacture of fasteners. In the method, fasteners formed by heating plates with different temperature zones are used. Specifically, for a wire body with a higher degree of heating that is located below a higher temperature zone, the head of the joint unit formed by it will have a larger diameter due to the higher melting degree of its free end. But its stem will accordingly have a shorter length. On the other hand, for the wire body with a lower degree of heating that is located below the lower temperature zone, the head of the joint unit formed by it will have a smaller diameter due to the lower melting degree of its free end. But its stem will have a correspondingly longer length. That is, the joining unit 3A is formed by a wire body located below the temperature zone with a lower temperature, and has a stem portion 30A with a longer length and a head portion 31A with a smaller diameter, and the joining unit 3A' is located at a higher temperature. The wire body under the high temperature area is formed, which has a stem 30A' with a shorter length and a head 31A' with a larger diameter.

9A and 9B show yet another example of a fastener manufactured by the method for manufacturing a fastener of the present invention.

As shown in Fig. 9A, this fastener includes a substrate 1 and a plurality of joining units 3B. Each joining unit 3B includes a stem 30B connected to the substrate 1 at one end, and a head 31B located at the other end of the stem 30B. , The stem 30B has the same length, and the head 31B has the same diameter. As shown in FIG. 9B, the plurality of bonding units 3 are arranged in a plurality of diamond patterns.

Unlike the fastener shown in FIGS. 7A and 7B, in the example shown in FIGS. 9A and 9B, the fastener is manufactured by using a bottom plate ( That is, a plurality of wires pass through these through holes to form a plurality of diamond patterns) and a fastener formed by the combination of a heating plate with a single temperature zone.

It can be seen from the examples of several types of fasteners described above that, as described above, by the method of manufacturing fasteners according to the present invention, it is indeed possible to easily manufacture fasteners with pattern changes without the need to borrow It is processed by other additional molds or devices.

Although several aspects of the present invention have been described in the above embodiments with reference to the drawings, the above embodiments are only preferred embodiments of the present invention and are not intended to limit the present invention to the above description and drawings. Features and structure shown in. Within the spirit of the present invention, those skilled in the art can conceive various other changes and modifications, and such changes and modifications are also included in the scope of the present invention.

1: Substrate 10: Through hole 2: line body 20: end 21: free end 3. 3A, 3B: joint unit 30, 30A, 30A’, 30B: stem 31, 31A, 31A’, 31B: head 8: Heating plate

Figure 1 is a schematic top view for explaining the method for manufacturing a fastener according to the present invention, in which a substrate with through holes is shown; 2 is a schematic plan view for explaining the method for manufacturing a fastener according to the present invention, in which the wire body is shown through the through hole of the substrate; Figure 3 is a schematic cross-sectional view taken along the line A-A of Figure 2; 4 is a schematic cross-sectional view for explaining the method for manufacturing a fastener according to the present invention, which shows that the wire body and the substrate are welded; 5 is a schematic cross-sectional view for explaining the method for manufacturing a fastener according to the present invention, which shows that the wire body is cut to form a free end; 6 is a schematic cross-sectional view for explaining the method for manufacturing a fastener according to the present invention, in which it is shown that the wire body is heated from the direction of the side of the free end of the wire body; 7A is a schematic cross-sectional view of an example of a fastener made by the method for manufacturing a fastener according to the present invention; Fig. 7B is a schematic top view of Fig. 7A; 8 is a schematic cross-sectional view of another example of a fastener made by the method for manufacturing a fastener according to the present invention; 9A is a schematic cross-sectional view of another example of a fastener made by the method for manufacturing a fastener according to the present invention; and Fig. 9B is a schematic top view of Fig. 9A.

1: Substrate

3: Joint unit

30: stem

31: head

Claims (17)

A method for manufacturing fasteners, including: Provide a substrate with a plurality of through holes; Correspondingly pass a plurality of thread bodies through the plurality of through holes of the substrate, so that the ends of the plurality of thread bodies protrude from the substrate; Welding the ends of the plurality of wires and the substrate to fix the plurality of wires to the substrate; Cutting the plurality of thread bodies to form free ends relative to the ends of the plurality of thread bodies fixed on the substrate; and The plurality of wires are heated from the direction of the side of the free ends of the plurality of wires, so that the plurality of wires form the joint unit of the fastener, wherein each joint unit has the free end formed by the The head and the stem connected to the substrate. For example, the method for manufacturing fasteners in the first item of the scope of patent application, wherein the ends of the plurality of wires and the substrate are welded together by an ultrasonic welding method. For example, the method for manufacturing fasteners according to item 2 of the scope of patent application, wherein the substrate and the plurality of wires are made of the same plastic material. For example, the method for manufacturing fasteners in item 3 of the scope of patent application, wherein the plastic material is nylon or PP material. For example, the method for manufacturing fasteners in the second item of the scope of patent application, wherein the substrate and the plurality of wires are made of different plastic materials. For example, the method for manufacturing fasteners in the first item of the scope of patent application, wherein, before the plurality of wires are correspondingly passed through the plurality of through holes of the substrate, the plurality of wires are passed through the alignment The jig is aligned with the plurality of through holes of the substrate. For example, the method for manufacturing a fastener according to the first item of the scope of the patent application, wherein the plurality of through holes of the substrate are punched holes formed by punching. For example, the method for manufacturing a fastener according to item 7 of the scope of patent application, wherein the plurality of through holes of the substrate are configured to be arranged in different patterns. For example, the method for manufacturing a fastener according to the first item of the scope of patent application, wherein the ends of the plurality of thread bodies protrude from the substrate by about 1 mm. For example, the method for manufacturing fasteners in the first item of the scope of patent application, wherein the diameter of the through hole is 1.2 to 1.5 times the diameter of the wire body. For example, the method for manufacturing fasteners in the first item of the scope of patent application, wherein a heating plate is provided to heat the plurality of wires in a non-contact manner, so that the free ends form the heads of the joint units unit. For example, the method for manufacturing fasteners according to item 11 of the scope of patent application, wherein the surface of the heating plate facing the plurality of wires has different temperature regions, which are configured to make the heating degree of the plurality of wires Different from each other. For example, the method for manufacturing fasteners in the first item of the scope of patent application, wherein the plurality of wire bodies are heated by contact heating, so that the free ends form the heads of the joint units. A fastener, which is made by the method for manufacturing a fastener as in any one of items 1 to 13 in the scope of the patent application, the fastener including: Substrate A plurality of joining units are formed on the substrate, and each joining unit includes a stem part connected to the substrate at one end and a head located at the other end of the stem part, Wherein, the stem has a length along the extending direction of the joint unit, and the length is configured to be changeable according to the degree of heat received when the fastener is manufactured, and Wherein, the head has a diameter, and the diameter is configured to be changeable according to the degree of heating when the fastener is manufactured. For example, the fastener of item 14 of the scope of patent application, wherein the plurality of joining units are arranged to form a pattern on the substrate. For example, the fastener of item 14 in the scope of the patent application, wherein the heating degree of at least two of the plurality of connecting units is different from each other when the fastener is manufactured, so that the heating degree of the at least two connecting units is higher One of the joining units has the stem with a shorter length and the head with a larger diameter, and the other joining unit of the at least two joining units with a lower degree of heat has the stem with a longer length and a diameter The smaller head. For example, the fastener of item 16 in the scope of the patent application, wherein the at least two joining units with different heat levels are configured to form a pattern.

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