Invisible bonding jig for luggage zipper

Abstract

The invention provides an invisible bonding jig for a luggage zipper. The invisible bonding jig is used for solving the problems that when a non-fabric luggage shell and the zipper are bonded, positioning is difficult, deformation is prone to occurring, and the zipper shifts. The jig comprises a lower cover base and an upper cover pressing plate. A lower shell profiling groove is formed in the upper surface of the lower cover base; an upper shell profiling groove is formed in the lower surface of the upper cover pressing plate, a limiting block is arranged below the upper shell profiling groove, and the height of the limiting block is equal to the width of the zipper. The lower cover inner supporting piece and the upper cover inner supporting piece are respectively used for copying the inner side surfaces of the lower shell and the upper shell, and are used for supporting the shells to prevent deformation during mold closing; the upper and lower cover inner supporting pieces are fixedly connected, a gap with the width equal to the thickness of the zipper teeth is formed between the contact surfaces, and a pressing block with an elastic piece is arranged on the lower cover inner supporting piece and used for pressing the zipper teeth embedded in the gap to fix the zipper. Through the anti-deformation inner support and the zipper pre-fixing structure, the zipper bonding precision, the product yield and the production efficiency are remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of luggage, and in particular to a luggage zipper invisible bonding jig. Background Art

[0002] In the field of luggage manufacturing, as a core component for realizing the opening and closing function, the setting position and connection method of the zipper have a decisive impact on the aesthetics, functionality, and durability of the product. The traditional zipper arrangement methods are mainly divided into two categories: external setting and internal setting. Among them, although the externally set zipper is convenient to operate, its exposed structure often destroys the overall appearance consistency of the luggage surface and affects the aesthetic effect of the product.

[0003] In order to pursue a more concise and smooth appearance design, setting the zipper internally (zipper invisibility) has become an important option. At present, the common connection methods for internally set zippers mainly include sewing and bonding. However, for luggage shells made of non-fabric materials (such as plastics, PVCs, or composite materials, etc.), the sewing method is difficult to apply or even completely infeasible due to the material characteristics (hard, brittle, unable to penetrate, or easy to be damaged when penetrated). Therefore, realizing the internal zipper setting on such luggage mainly relies on bonding technology.

[0004] In the existing process, heating and welding by high-frequency (high-frequency) through a hot melt adhesive film of back glue is a relatively effective bonding method; however, due to the hollow structure of the luggage shell, the existing molds cannot be positioned. Summary of the Invention

[0005] The present invention provides a luggage zipper invisible bonding jig for solving the problem that the existing molds cannot be positioned.

[0006] The present invention provides a luggage zipper invisible bonding jig, including a lower cover base, on the upper surface of which there is a lower shell profiling groove for the outer surface of the lower shell. When the lower shell is placed in the lower shell profiling groove, it is exposed from the lower shell profiling groove; an upper cover pressing plate, on the lower surface of which there is an upper shell profiling groove for the outer surface of the upper shell. When the upper shell is assembled with the upper shell profiling groove, it is exposed from the upper shell profiling groove. A limiting block is arranged below the upper cover pressing plate, and the height of the limiting block is the same as the width of the zipper. When the upper cover pressing plate and the lower cover base are clamped, the combined height of the part of the lower shell exposed from the lower shell profiling groove and the part of the upper shell exposed from the upper shell profiling groove is the same as the height of the limiting block.

[0007] Preferably, it further includes a lower cover inner support and an upper cover inner support. The lower cover inner support is a profiling of the inner side surface of the lower shell, and the upper cover inner support is a profiling of the inner side surface of the upper shell.

[0008] Preferably, the lower cover inner support is fixedly connected to the upper cover inner support. A gap is formed between the upper surface of the lower cover inner support and the lower surface of the upper cover inner support, and the width of the gap is the width of the zipper teeth. A groove is provided above the lower cover inner support, and a pressing block is arranged in the groove. The lower part of the pressing block is connected to the bottom surface of the groove through an elastic member.

[0009] A luggage zipper invisible bonding jig provided by the present invention physically limits the luggage shell through the lower shell profiling groove and the upper shell profiling groove to ensure stable alignment of the edges of the upper / lower shells; by adding a lower cover inner support and an upper cover inner support (imitating the internal contour of the shell), the luggage shell is supported bidirectionally inside and outside during mold closing, preventing the thin-walled shell from collapsing and twisting, and ensuring the geometric accuracy and structural integrity of the product; the pre-fixing of the zipper is realized through the gap between the lower cover inner support and the upper cover inner support and the elastic pressing block, avoiding repeated manual adjustment.

[0010] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The above and / or additional aspects and advantages of the present invention will become apparent and be readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0012] Figure 1 is an example of the existing luggage structure;

[0013] Figure 2 is a schematic structural diagram of a luggage zipper invisible bonding jig provided by the present invention;

[0014] Figure 3 is a structural diagram of the upper cover pressing plate provided by the present invention;

[0015] Figure 4 is a structural diagram of the lower cover inner support and the upper cover inner support provided by the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0017] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless otherwise specifically defined.

[0018] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "mounted", "connected" and "coupled" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection, an electrical connection or a connection capable of mutual communication; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0019] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0020] The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numerals and / or reference letters in different examples. This repetition is for the purpose of simplification and clarity and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0021] To better illustrate the principle of a luggage zipper invisible bonding fixture provided by the present invention, as Figure 1 shown, it is an exploded view of a structural example of an existing luggage; from top to bottom, there are an upper shell, a zipper, and a lower shell. The purpose of the present invention is to bond the upper and lower parts of the zipper to the inner sides of the upper shell and the lower shell respectively to achieve invisible bonding of the zipper. It should be noted that the zipper needs to be pre-coated with adhesive.

[0022] As Figures 2 to 4 shown, a luggage zipper invisible bonding fixture includes:

[0023] A lower cover base 1, on the upper surface of which there is a lower shell profiling groove 11 for the outer surface of the lower shell. When the lower shell is placed in the lower shell profiling groove 1, it is exposed outside the lower shell profiling groove;

[0024] An upper cover pressing plate 2, on the lower surface of which there is an upper shell profiling groove 21 for the outer surface of the upper shell. When the upper shell is assembled with the upper shell profiling groove 21, it is exposed outside the upper shell profiling groove 21. A limiting block 22 is provided below the upper cover pressing plate 2, and the height of the limiting block 22 is the same as the width of the zipper;

[0025] When the upper cover pressing plate 2 and the lower cover base 2 are closed, the combined height of the part of the lower shell exposed outside the lower shell profiling groove 11 and the part of the upper shell exposed outside the upper shell profiling groove 21 is the same as the height of the limiting block.

[0026] In this embodiment, the processing procedure is as follows: Place the lower shell into the lower shell profiling groove 11, then attach the lower part of the zipper to the inner edge of the lower shell, then cover the upper shell on the lower shell, and make the upper part of the zipper attach to the inner edge of the upper shell. Press down the upper cover pressing plate 2 to fix the upper shell and the lower shell. Thus, the high-frequency equipment can be used to activate the hot-melt adhesive film of the zipper and bond the zipper to the position of the inner edge of the luggage case, so as to achieve the purpose of invisible bonding of the zipper; in this embodiment, the specific position of the lower part of the zipper is the part of the lower shell exposed from the lower shell profiling groove 11, and the specific position of the upper part of the zipper is the part of the upper shell exposed from the upper shell profiling groove 21. The limiting block 22 is used to generate a gap between the upper cover pressing plate 2 and the lower cover base 1 when the upper cover pressing plate 2 and the lower cover base 1 are clamped. Through the above solution, it can be seen that the width of this gap is the width of the zipper, which not only allows the jig to avoid the position of the zipper, so that the high-frequency equipment can be used to process the position where the zipper is located to activate the hot-melt adhesive film.

[0027] In a specific embodiment, the luggage case zipper invisible bonding jig further includes a lower cover inner support 3 and an upper cover inner support 4. The lower cover inner support 3 is a profiling of the inner side surface of the lower shell, and the upper cover inner support 4 is a profiling of the inner side surface of the upper shell.

[0028] It can be understood that the luggage case is a hollow structure. When clamping the mold, the upper shell and the lower shell are prone to deformation, resulting in reduced precision or even product damage. The operation process in this embodiment is as follows: Place the lower shell into the lower shell profiling groove 11, then attach the lower part of the zipper to the inner edge of the lower shell, then sequentially place the lower cover inner support 3 and the upper cover inner support 4, then cover the upper shell on the upper cover inner support 4, and finally press down the upper cover pressing plate 2 to fix the upper shell and the lower shell. In this embodiment, the lower cover inner support 3 and the upper cover inner support 4 respectively play a supporting role for the lower shell and the upper shell, effectively preventing deformation.

[0029] In a specific embodiment, the lower cover inner support 3 is fixedly connected to the upper cover inner support 3. A gap is formed between the upper surface of the lower cover inner support 3 and the lower surface of the upper cover inner support 4. The width of the gap is the width of the zipper teeth. A groove is formed above the lower cover inner support 3, and a pressing block 31 is arranged in the groove. The lower part of the pressing block 31 is connected to the bottom surface of the groove through an elastic member 32.

[0030] It can be understood that in the above solution, when placing the zipper, the zipper is not fixed and is in a free state. Therefore, when placing other structures, it will cause the movement of the zipper, thus requiring repeated adjustment of the position of the zipper. In this embodiment, the processing procedure is as follows: Place the lower housing into the lower housing profiling groove 11, embed the teeth of the zipper into the gap between the lower cover inner support 3 and the upper cover inner support 4, and press the teeth tightly through the pressing block 31 to fix the zipper. Then, integrally place the lower cover inner support 3 carrying the zipper and the upper cover inner support 4 into the lower housing, cover the upper housing, and finally press down the upper cover pressing plate 2 to fix the upper housing and the lower housing. It can be seen that due to the pressing action of the pressing block 32, the zipper will not move easily during the processing.

[0031] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A luggage zipper invisible bonding fixture, comprising a lower cover base, wherein a lower shell profiling groove on the outer surface of the lower shell is formed on the upper surface of the lower cover base, and when the lower shell is placed in the lower shell profiling groove, it is exposed from the lower shell profiling groove; an upper cover pressing plate, wherein an upper shell profiling groove on the outer surface of the upper shell is formed on the lower surface of the upper cover pressing plate, and when the upper shell is assembled with the upper shell profiling groove, it is exposed from the upper shell profiling groove, and a limiting block is arranged below the upper cover pressing plate, and the height of the limiting block is the same as the width of the zipper; when the upper cover pressing plate and the lower cover base are clamped, the combined height of the part of the lower shell exposed from the lower shell profiling groove and the part of the upper shell exposed from the upper shell profiling groove is the same as the height of the limiting block.

2. The luggage zipper invisible bonding fixture according to claim 1, characterized in that It further includes a lower cover inner support and an upper cover inner support, wherein the lower cover inner support is a profiling of the inner side surface of the lower shell, and the upper cover inner support is a profiling of the inner side surface of the upper shell.

3. The luggage zipper invisible bonding fixture according to claim 1, characterized in that, The lower cover inner support and the upper cover inner support are fixedly connected, a gap is formed between the upper surface of the lower cover inner support and the lower surface of the upper cover inner support, and the width of the gap is the width of the zipper teeth. A groove is formed above the lower cover inner support, and a pressing block is arranged in the groove, and the lower part of the pressing block is connected with the bottom surface of the groove through an elastic member.

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