CN1625992A

CN1625992A - Method for fabricating toecap from composite material and structure of toecap prepared

Info

Publication number: CN1625992A
Application number: CN 200310120432
Authority: CN
Inventors: 杨新智
Original assignee: DAYING INDUSTRIAL Co Ltd
Current assignee: DAYING INDUSTRIAL Co Ltd
Priority date: 2003-12-10
Filing date: 2003-12-10
Publication date: 2005-06-15
Anticipated expiration: 2023-12-10
Also published as: CN100381087C

Abstract

A technology for manufacturing the front head of a shoe includes cutting the fibrous sheet material, overlapping them, and die pressing. The structure of said front head is composed of a hard head, a sewing part made of high-toughness thermoplastic film through overlapping, and a transition part between said hard head and sewing part, which is a fibre reinforced thermoplastic resin layer. Its advantages are high strength and high firemness.

Description

The manufacture method of composite toe-cap and the shoecap structure of making thereof

Technical field

The present invention relates to a kind of manufacture method of composite toe-cap and the shoecap structure of making thereof, refer to especially a kind ofly produce firm shoe head part and soft sewing portion, and impact strength is better under normal temperature and low temperature, and shoe head part and the one-shot forming of sewing portion.

Background technology

For row's wheel footwear; the environment for use of ice skates mostly is room temperature or freezed in winter lower temperature area; row's wheel footwear; the toe-cap effect of ice skates; can protect toe to collide in avoiding being moved damages; so the shock resistance of toe-cap under room temperature or low temperature must enough just can reach it by force effect should be arranged; and will be toe-cap and flap; vamp tightly is associated in and becomes as a whole together; then must be on flap and vamp with its sewing; the present common practice; be with thermoplastic such as PVC; materials such as TPU; directly inject the thermoplasticity toe-cap that integrates toe-cap and sewing part; again itself and flap are in the same place with the vamp sewing; and since thermoplastic the impact strength on the unit thickness relatively a little less than; especially material becomes fragile when low temperature; resistance to impact is poorer; guarantee when it uses at low temperatures security for user's protection; promptly must be made significantly thicker wall thickness sufficient intensity is provided; to guarantee user's safety; thus; it is very big that toe-cap just must be done; very thick; and utilize the made row of this toe-cap to take turns footwear; it is quite heavy that ice skates promptly seems, also directly influenced the row's of making wheel footwear simultaneously because of it is not only big but also thick; the finished product outward appearance of ice skates.

The another kind of practice, be to use glass fiber-reinforced thermoset ting resin composite one-body molded next fully as row's wheel shoe toecap and ice skates toe-cap, though, this kind practice can make impact strength significantly improve under normal temperature and low temperature environment, but this kind material is crisp too firmly, and sewing part toughness is not enough, and causes fracture easily, if increase thickness then suture needle is easily broken, can't carry out the sewing operation.

A kind of practice is arranged again, be that above-mentioned two kinds of methods are combined into toe-cap with the synthetic mode of gluing, that is, toe part is with the independent moulding of glass-fiber reinforced thermo-setting resin composite, this gets the advantage of its high-strength light weight, and be injected into the aliform thin slice with thermoplastic in addition in the sewing part, get the advantage that it can sewing, again the two is formed synthetic toe-cap so that binder is glutinous together, and because the restriction of preparation method exists firm toe-cap and pliable and tough sewing part gluing not firm, the problem of coming unstuck easily, toe-cap and flap and vamp separate in causing using, and exist sizable safe secret worry, and the loaded down with trivial details production efficiency of its manufacturing process is not high.

Summary of the invention

Because the shortcoming of above-mentioned traditional fabrication toe-cap method, the inventor thinks and innovative approach, and design a kind of " manufacture method of composite toe-cap and the shoecap structure of making thereof ", its purpose is exactly that a kind of thin, high strength of light weight, wall that integrates firm toe-cap and soft sewing part will be provided, and processes the manufacture method of simple integrated composite composite toe-cap and the shoecap structure of making thereof.

For reaching above-mentioned purpose, the invention provides a kind of " manufacture method of composite toe-cap ", its step comprises:

First step, sheet material cuts, earlier for the continuous fiber material as shoe head part, and as the toughness thermoplastic film of sewing portion, cut into the small pieces of required form according to template size, and the continuous fiber material cuts out minimum lengthy motion picture material with a slice extreme length earlier;

Second step, lamination is prefabricated, and is with the continuous fiber material that cuts, in layer stacked in addition, and when lamination, toughness thermoplastic film leading edge is stacked and placed on continuous fiber material trailing edge and forms sewing portion, and make the general profile of whole toe-cap and form prefabrication;

Third step, compression molding, the article that above-mentioned lamination is prefabricated are inserted in the mould, and bestow certain pressure, temperature and time, it is hardened in mould and mold shoecap structure.

And, according to the made shoecap structure of the inventive method, be with the folded shoe head part that is made as hard of the continuous fiber material that cuts in advance, and continue at the shoe head part trailing edge as soft sewing portion with the toughness thermoplastic film lamination that cuts in advance, heat extrusion forming in the mould and be prefabricated into the toe-cap moulding and insert, go out to have the toe-cap of hard shoe head part and soft sewing portion, this shoe head part and sewing portion junction then form the fibre-reinforced thermoplas tic resin composite's layer of continuity.

Description of drawings

Fig. 1: the making flow chart of the inventive method.

Fig. 2: the schematic diagram that lamination of the present invention is prefabricated.

Fig. 3: the schematic diagram of compression molding of the present invention.

Symbol description among the figure

(1) toe-cap (10) shoe head part

(11) continuous fiber material (20) sewing portion

(21) toughness thermoplastic film

(A) first step (B) second step

(C) third step (D) the 4th step

The specific embodiment

Cooperation is referring to Fig. 1, Fig. 2 and shown in Figure 3, and the manufacture method of composite toe-cap of the present invention comprises;

First step (A), sheet material cuts, sheet material related in the present invention comprises, can be used as the continuous fiber material (11) of shoe head part (10), and the toughness thermoplastic film (21) that can do sewing portion (20), it can cut into the small pieces of required form according to template size, and continuous fiber material (11) can cut out minimum lengthy motion picture material with a slice extreme length earlier;

Above-mentioned continuous fiber material (11) can be the continuous fiber preimpregnation material, comprise glass fabric, carbon cloth and aryl fiber cloth, continuous fiber material (11) can provide the intensity of composite toe-cap, and because the continuity of fiber can avoid the composite toe-cap to disintegrate when collision;

Above-mentioned continuous fiber material (11) as shoe head part (10), the available heat thermosetting resin is replaced, as SMC sheet material (Sheet Moulding Comjpound sheet molding compound), unsaturated polyester resin, vinylester resin and epoxy resin, all can be used as shoe head part (10) moulding of hard;

Above-mentioned toughness thermoplastic film (21) is as nylon film and thermoplastic polyurethane film, can be used as soft sewing portion (20) material;

Second step (B), lamination is prefabricated, with the continuous fiber material (11) that cuts, in layer be stacked to shoe head part (10), and when lamination, toughness thermoplastic film (21) leading edge is stacked and placed on continuous fiber material (11) trailing edge and forms sewing portion (20), and make the general profile formation prefabrication of whole toe-cap (1);

Described lamination is prefabricated, when several pieces continuous fiber material (11) one stacked one decks carry out lamination, sheet material cuts the continuous fiber material (11) that is preset as lengthy motion picture material, can be used as the substrate of moulding sewing portion (20), continuous fiber material (11) end of this lengthy motion picture material extends outside the lamination, and when this lengthy motion picture material lamination, can minimum a slice toughness thermoplastic film (21) leading edge be stacked in this lengthy motion picture material and other continuous fiber material (11) trailing edge handing-over position, it is minimum to be stacked on continuous fiber material (11) trailing edge for a slice toughness thermoplastic film (21), can paste simultaneously at lengthy motion picture material inner surface or outer surface, the first folded lengthy motion picture material of stacked toughness thermoplastic film (21), can make thermoplastic film (21) be positioned at lengthy motion picture material inner surface, and if the earlier stacked stacked again toughness thermoplastic film of lengthy motion picture material (21), then toughness thermoplastic film (21) can paste at lengthy motion picture material outer surface;

Also can stacked two (containing) the above toughness thermoplastic film (21) of above-mentioned steps is cut into the inside and outside surface of lengthy motion picture material in continuous fiber material (11), makes all folded toughness thermoplastic film (21) of establishing in inside and outside surface of lengthy motion picture material;

Third step (C), compression molding, the article that above-mentioned lamination is prefabricated are inserted in the mould, and bestow certain pressure, temperature and time, it is hardened in mould and mold toe-cap (1) structure.

According to made toe-cap (1) structure of said method step of the present invention, as shown in Figure 3, this toe-cap (1) structure is with the folded shoe head part (10) of making hard of the continuous fiber material (11) that cuts in advance, and continue with toughness thermoplastic film (21) lamination that cuts in advance and to form soft sewing portion (20) at shoe head part (10) trailing edge, and form the fibre-reinforced thermoplas tic resin composite's layer of continuity in shoe head part (10) and sewing portion (20) lamination junction;

In the compression molding step of above-mentioned third step, toughness thermoplastic film (21) is infiltrating after the fusion under the solidification temperature of thermosetting resin between the monofilament of continuous fiber material (11), and with its coating and then form soft and the strong fibre-reinforced thermoplas tic resin composite's layer of continuity, be shoe head part (10) and the fibre-reinforced thermoplas tic resin composite's layer of sewing portion (20) junction formation continuity, and has soft tough and tensile characteristic, and because sewing portion (20) softness, so be easy to sewing, and because shoe head part (10) forms the fibre-reinforced thermoplas tic resin composite's layer of continuity tool toughness with sewing portion (20), so sewing portion (20) is difficult for breaking with shoe head part (10) junction.

Therefore, elaborate via the said method step, can know and find out the inventive method, can produce firm shoe head part and soft sewing portion, and firm shoe head part tool light weight, thin and the high strength of wall, and impact strength is better under normal temperature and low temperature, and, shoe head part and the one-shot forming of sewing portion, significantly simplify the production time of Shoes Factory, and enhance productivity, and, according to the made shoecap structure of the inventive method, has the thin light weight characteristic of composite walls, can reduce Thickness Design, so take turns footwear as row with it, ice skates, the footware front end can be made more streamline and attractive in appearance of external form profile.

In sum, the present invention's " manufacture method of composite toe-cap and shoecap structure of making thereof ", the height creation for the technological thought that utilizes law of nature meets the patent of invention important document, and all in accordance with the law literary compositions are filed an application.

Claims

1. the manufacture method of a composite toe-cap is characterized in that, this step comprises:

2. the manufacture method of composite toe-cap as claimed in claim 1, wherein, the continuous fiber material can be continuous fiber preimpregnation material, comprises glass fabric.

3. the manufacture method of composite toe-cap as claimed in claim 1 or 2, wherein, as the continuous fiber material of shoe head part, the available heat thermosetting resin is replaced, as the SMC sheet material of thermosetting resin.

4. the manufacture method of composite toe-cap as claimed in claim 3, wherein, the toughness thermoplastic film can be nylon film.

5. the manufacture method of composite toe-cap as claimed in claim 3, wherein, the toughness thermoplastic film can be thermoplastic polyurethane film.

6. a composite shoecap structure is characterized in that,

This shoe head part adopts the folded shoe head part that is made as hard of the continuous fiber material that cuts in advance;

This shoe head part trailing edge with the toughness thermoplastic film lamination that cuts in advance as soft sewing portion;

This shoe head part and sewing portion junction then form the fibre-reinforced thermoplas tic resin composite's layer of continuity.