CN103005822A - Method for combining zipper and box body - Google Patents

Abstract

The invention relates to a method for combining a zipper with a box body, which mainly comprises the steps of firstly, taking the box body with two half shells and the zipper, wherein the end edge of one half shell is provided with a long groove, and the zipper is provided with two chain belts, a plurality of chain teeth and a combination block arranged on one chain belt; then, the combination block of the zipper is placed in the long groove of the half shell; and finally, combining the combination block with the half shell in an ultrasonic welding mode to connect the zipper with the box body. The combination method of the invention not only has simple and rapid operation mode, but also can improve the combination strength between the zipper and the box body, so that the zipper can be used more durably.

Description

Combination method of zipper and box

technical field

The invention relates to a combination method of a zipper and a box body, in particular to a combination method capable of making the zipper difficult to detach from the box body.

Background technique

Generally, openable and closable casings, such as suitcases, generally include two half shells, and a slide fastener arranged on the two half shells. Chain teeth that can be engaged with each other, and a slider that can move back and forth along each chain tooth, so that the luggage case can be opened or closed by the engagement and separation of each chain tooth.

The usual method of setting the zipper on the two half-shells is to sew the two chain straps of the zipper on the two half-shells. The pre-determined position of the quasi-half shell is then sewn by a sewing machine. If the sutures are exposed and unsightly after sewing, other components such as decorative strips must be used to cover them, which increases the complexity of the structure and manufacturing process.

Contents of the invention

In view of the above problems, the main purpose of the present invention is to provide a method for combining the zipper and the box, the operation method of which is simple and fast, and enables the zipper to be firmly connected to the box.

Another object of the present invention is to provide a combination method of a zipper and a box, which can produce a product with a simple and smooth appearance.

In order to achieve the above object, a method for combining a zipper and a casing provided by the present invention is characterized in that it includes the following steps: a) taking a plastic material casing and a zipper, and the casing has two half-shells , wherein the end edge of one of the half-shells has a long groove, and the zipper has two chain belts made of plastic material, a plurality of chain teeth arranged on one side of each of the chain belts and capable of engaging with each other, and one set on One of the chain belts is located on the other side of the plastic joint block; b) the joint block of the zipper is placed in the long groove of the half shell; c) the joint is welded by ultrasonic welding A block is integrated with the half-shells, connecting the zipper to the box.

In the above-mentioned technical solution of the present invention, in step a), the box body is made by injection molding.

In step a), the combination block is combined with the chain belt through co-extrusion.

Before the step b), it also includes the step of applying an adhesive to the zipper joint block.

Before step b), it also includes the step of applying an adhesive to the long groove of the box body.

The box body, the chain belt and the combination block are made of the same plastic material.

The plastic material is polypropylene.

In step a), the end edges of the two half shells both have the long grooves, and the other sides of the two fastener tapes of the zipper both have the bonding blocks.

By adopting the above technical solution, the operation mode of the combining method provided by the present invention is simple and fast, and can make the slide fastener firmly connected with the box body.

Description of drawings

Fig. 1 is a schematic diagram showing the shape of the box and the zipper in the method for combining the zipper and the box according to a preferred embodiment of the present invention;

Fig. 2 is a schematic diagram showing the form of the combination block of the zipper inserted into the long groove of the half-shell in the preferred embodiment;

Fig. 3 is a schematic diagram, shows in this preferred embodiment, after ultrasonic welding, the form that joint block and half-shell are combined together;

Fig. 4 is a flowchart showing the steps of the bonding method of the preferred embodiment.

Detailed ways

The structure and effect of the present invention will be described in detail by citing the following embodiments in conjunction with the accompanying drawings.

As shown in Figures 1 to 4, the method for combining the zipper and the box body provided by a preferred embodiment of the present invention includes the following steps:

At first in step S1, first take a casing 10 made of plastic material and a slide fastener 20, the casing 10 has two half-shells 11, and the end edges of the two half-shells 11 have a long groove 111 respectively, and the slide fastener 20 has Two plastic chain belts 21, a plurality of chain teeth 23, and two plastic joint blocks 25, each chain tooth 23 is respectively arranged on one side of each chain belt 21 and can mesh with each other, each joint block 25 is respectively arranged on each The other side of the chain strap 21. In this embodiment, the box body 10 is preferably made by (but not limited to) injection molding, and the combination block 25 is preferably combined with the chain belt 21 by (but not limited to) co-extrusion extrusion, and the combination block 25 It is preferable to use the same plastic material as the chain belt 21 so as to be firmly formed on the chain belt 21 . The aforementioned plastic material is preferably (but not limited to) polypropylene (Polypropylene, PP).

Next, in step S2 , put the combination block 25 of the zipper 20 into the long slot 111 of the half shell 11 .

Furthermore, in step S3, the bonding block 25 is combined with the half shell 11 by means of ultrasonic welding, and the zipper 20 is connected with the box body 10 to obtain the product 30 as shown in FIG. 3 . In this embodiment, the box body 10 and the joint block 25 of the chain belt 21 are made of the same plastic material, preferably (but not limited to) polypropylene (PP). After the aforementioned ultrasonic welding, the joint block 25 of the slide fastener 21 will be partly fused with the wall surface of the long groove 111 of the box body 10, forming a plurality of fusion points C as shown in Figure 3, thus, the present invention provides The combination method is simple and quick to operate, and the zipper 20 can be firmly connected with the box body 10, and it is not easy to be detached and damaged due to long-term pulling. Furthermore, the appearance of the zipper 20 combined with the box body 10 is seamless and without stitches, which is not only simple and more beautiful, but also the smooth appearance can reduce the adhesion of dirt. In addition, in order to make the combination block 25 more firmly arranged in the long groove 111, an adhesive can also be coated on the surface of the combination block 25, or coated in the long groove 111, and then the combination block 25 is placed into the long groove 111. In the long groove 111.

It should be noted that although in the aforementioned embodiment, the end edges of the two half shells of the box body all have long grooves, and the two fastener tapes of the slide fastener all have joint blocks for illustration, yet those skilled in the art should understand that It is understood that the present invention only needs at least half of the housing to have the aforementioned long slots, and at least one chain belt to have the aforementioned combination block, which is sufficient to achieve the functions of the present invention.

Claims (8)

1. A combination method of a slide fastener and a casing, characterized in that it comprises the following steps: a) Take a box made of plastic and a zipper, the box has two half-shells, one of the half-shells has a long groove on its end edge, and the zipper has two chain belts made of plastic, a plurality of a chain tooth provided on one side of each of the chain belts and capable of engaging with each other, and a joint block of plastic material provided on one of the chain belts and located on the other side; b) placing the joint block of the zipper into the long groove of the half shell; c) Using ultrasonic welding to combine the combination block and the half-shell together, and connect the zipper to the box body. 2. The method for combining the zipper and the box according to claim 1, characterized in that: in step a), the box is made by injection molding. 3. The method for combining the zipper and the box according to claim 1, characterized in that: in step a), the combination block is combined with the chain belt by means of co-extrusion. 4 . The method for combining a zipper and a box according to claim 1 , further comprising a step of applying an adhesive to the zipper joint block before step b). 5 . The method for combining the zipper and the box according to claim 1 , further comprising a step of applying an adhesive to the slot of the box before step b). 6 . 6. The method for combining the zipper and the box according to claim 1, characterized in that: the box, the chain belt and the combination block are made of the same plastic material. 7. The method for combining the zipper and the box according to claim 6, wherein the plastic material is polypropylene. 8. The combination method of slide fastener and box body as claimed in claim 1, characterized in that: in step a), the end edges of the two half shells all have the long grooves, and the two chains of the slide fastener The other side of the belt each has the bonding blocks.

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