CN208639709U - Waterproof overshoes - Google Patents

Abstract

The utility model discloses a kind of waterproof overshoes comprising the vamp made of waterproof fabrics, the sole are securely bonded together molding sole with vamp by the injection molding machine directly injection molding on vamp clique, using itself melt adhesive temperature when injection molding and pressure.The utility model can either improve production efficiency when preparation, and be able to ascend product quality, while can also extend, abundant product category.

Description

Waterproof overshoes

Technical field

The utility model relates to shoe cover fields, and in particular to a kind of waterproof overshoes.

Background technique

Waterproof overshoes are a kind of similar functions of combining rain rubber shoes and disposable plastic shoe cover, and style, structure are referring again to boots The plasthetics of son, set is through outside shoes when rain and snow weather, can be played the role of the anti-mud of waterproof, not only conveniently be worn but also be easy to Transportation.Structurally, shoe cover can be divided into vamp and sole two parts, and usual footwear sole construction, style are relatively fixed, shoes Face is then designed as various styles, and technique is all first to prepare sole and vamp at present, is then again played the two welding by High-frequency machine Come.As shown in Figure 1, this is the most of preparation method used currently on the market, vamp 2' covers on internal model 4', 1', sole In the top of vamp 2', by upper mold 3' be pressed down against and the two is welding together by High-frequency machine, in Fig. 1 arrow indicate pressurization plus The direction of high frequency.The mode of the upper and lower extruding inevitably makes the two welding position thinning；Chinese patent literature CN203969451U discloses a kind of rain-proof shoe sheath heat seal device, and which describe vamp and the sole folders from side to rain-proof shoe sheath Tightly, then the work of High-frequency machine is cooperated to complete pressing work.

The shoe cover of technique preparation at present, there are following deficiencies for inventor's discovery:

1) it is squeezed by mold, whether frequency is increased in extruding up and down or side squeezes and increases frequency, all inevitably makes two Person's welding position is thinning, and welding part thickness is inevitably less than other do not pressurize and increases the region of frequency, influences intensity, and melts Socket part position is the whole maximum position of shoe cover stress again.

2) sole material is usually PVC (being easy to high frequency processing), can not be selected if other materials such as PE, woven dacron etc., sternly The category and upgrading of weight limit product.

3) before high frequency welding, sole, vamp need to be previously prepared, and work efficiency is low.

It is worth noting that the information disclosed in the background technology section is intended only to increase the totality to the utility model Background and understanding to the problem of extraction, and it is not construed as recognizing or imply that information composition has been ability in any form The prior art well known to the those skilled in the art of domain.

Utility model content

Inventor further probe into its because, it is found that vamp generally by PVC film, woven dacron or other materials waterproof cloth, Film is made up of sewing machine, High-frequency machine and air-heater etc., and there are cliques to dock sole for lower end；Sole is by being pressed with the PVC of decorative pattern Sheet stock punching forms or by injection molding.Vamp, sole are usually all relatively easy to make, and the key of shoe cover production is with difficult point Vamp is docked with sole, it determines material selection, Design modelling, quality, the class, production efficiency of shoe cover.In fact, institute There are footwear both limited by this.

To solve above-mentioned deficiency, inventor has paid creative labor, has just obtained the utility model.

The purpose of this utility model is that proposing production efficiency when one kind can either improve preparation, and it is able to ascend product Quality, while can also extend, the waterproof overshoes of abundant product category.

Used technical solution are as follows:

A kind of waterproof overshoes, including the vamp made of waterproof fabrics, the sole is by injection molding machine directly in vamp clique Upper injection molding is securely bonded together molding sole with vamp using itself melt adhesive temperature when injection molding and pressure.

The inventive concept of the technical solution is footwear sole using the injection molding of continuous-upper injection method.Footwear sole can use Continuous-upper injection method injection molding has benefited from its vamp and draws side, fixed, heat, cooling working procedure to be formed through equipment before injection molding, clique Keep tensioned state with shoe last (or mold core) always in injection moulding process, injection molding melten gel just can be complete by vamp clique It is coated on the interior complete sole of formation, otherwise injection molding melten gel can wash clique open in the intracavitary flowing of type and be injected on the inside of clique, cause to help Exposed, the scrap of the product of mouth.Thus, inventors have found that drawing helper's sequence is the key that continuous-upper injection, and this for low value and vamp by Shoe cover based article made of low-intensity film is that persons skilled in the art are unthinkable, meanwhile, this field general technology Personnel are generally acknowledged that ensuring not clipping broken the vamp made of low-intensity film being sleeved on mold core in advance when molding is measuring It is also the target being difficult to realize when production, high requirement is proposed to design, the production of mold, therefore, this field one As technical staff dare not can not even imagine that shoe cover based article can realize the direct fusion of sole and vamp via direct injection molding, There are no feasible technical solutions --- and shoe cover class product develops after ten several years, and product is dazzling, and no matter inventor is in market Retrieval upper or by patent or non-patent literature data is a kind of without discovery the technical solution of the utility model It proves.

The technical program is firmly bonded to molding sole with vamp using itself melt adhesive temperature when injection molding and pressure Together, on the one hand, improve production efficiency, reduce energy consumption；Welding part thickness is set to be greatly improved again, without being less than it Its region greatly strengthens its heat seal strength, so as to promote product quality；On the other hand, it breaches to sole material Limitation so as to extend, enriches product category without being limited by high frequency processing material selection；The third aspect, shoes Bottom becomes a factor for further increasing production efficiency without previously prepared.

Configuration aspects are embodied in, the structure of the utility model compared with the prior art, at least innovate by both sides: first is that The welding thick layer that vamp is docked with sole is increased, so that its heat seal strength is greatly strengthened, so as to promote product product Matter；Second is that itself melt adhesive temperature and pressure make molding sole and vamp securely when the connection type of vamp and sole is injection molding It is bonded together, melts vamp clique with sole and be integrated.

In the technical scheme, preferably wear-resisting, anti-skidding and compatible with the vamp material injected plastics material of sole material.

Under the technical solution, here is some preferred technical solutions:

Preferably, there are pits for the sole edge.

Preferably, the sole is double-color sole.

The utility model has the following beneficial effects:

1, product quality and class are promoted.

2, product category, such as the material that vamp material can select the high frequencies such as woven dacron, PE that can not process are enriched.

3, it is welded together when injection molding of sole using the temperature and pressure and vamp of itself melten gel, it can be to the maximum extent Production efficiency is improved, energy consumption is reduced；At the same time it can also utilize existing injection-moulding device, automated production is realized.This point, for Low value product is particularly important！

To sum up, technical solution described in the utility model and its inventive concept contained, have filled up the technology in the field Blank provides a kind of completely new production technology for shoe cover class industry, will be primary great promotion to shoe cover based article.

Detailed description of the invention

Fig. 1 is one of background technique shoe cover machining sketch chart.

Fig. 2 is the structural schematic diagram containing mold and binder boss of embodiment 1.

Fig. 3 is the structural schematic diagram of the vamp containing mold, binder pin and section of embodiment 2.

Fig. 4 is the structural schematic diagram of the vamp containing mold and section of embodiment 2.

Fig. 5 is the structural schematic diagram of the vamp containing mold and section of embodiment 4.

Fig. 6 is the line A-A fragmentary sectional view in Fig. 5.

Specific embodiment

Below in conjunction with attached drawing, the embodiments of the present invention are further described, but the protection scope of the utility model It is not limited thereto.

Embodiment 1:

A kind of waterproof overshoes, including the vamp made of waterproof fabrics, sole are directly infused on vamp clique by injection molding machine It is moulded into type, is securely bonded together molding sole with vamp using itself melt adhesive temperature when injection molding and pressure.

The processing method of the waterproof overshoes, includes the following steps:

S1. the vamp made is sleeved in injection mould internal model, closes external mold；Internal model is the sole to match with vamp Injection mould inner core (i.e. mold core)；Sole shape injection die cavities are collectively formed in the external mold of internal model and closure；

S2. injection molding machine mold clamping mechanism locks the internal model of S1 and external mold, then injection molding, utilizes itself melten gel when injection molding Temperature and pressure is securely bonded together molding sole with vamp.

In above-mentioned processing method, external mold is made of side mode and bed die, and side mode constitutes complete side after being closed by 2 mold segments Mould.Whole set of die constitutes (reference can be made to shown in Fig. 3) by side mode 3, bed die 5, mold core 7.

As shown in Fig. 2, side mode 3 relative to sole waist position be equipped with several binder boss 4 (Fig. 2 is schematically Give 6), when molding, binder boss forces vamp clique to be close to mold core, and side mode 3, bed die 5 form complete after molding Sole shape type chamber.Since binder boss can tie up part melten gel position, thus pit can be left on sole bound edge after demoulding, close The shape and arrangement of reason ground design pit, such as row circle or oblong, can dexterously make sole bound edge decorative pattern Component part.

Embodiment 2:

The binder boss 4 of embodiment 1 is changed to binder pin 6, in two times unlike the first embodiment referring to embodiment 1 Injection molding, as shown in Figure 3 and Figure 4.When primary injection molding, binder pin 6 is pressed into type chamber, and 2 clique of vamp is forced to be close to mold core 7, injection molding Binder pin 6 retracts original position after the completion, and fills up binder pin gap by quadric injection mould, and Fig. 3 and Fig. 4 representatively illustrate 6 injection moldings Arrow indicates injection molding direction in 8, Fig. 4 of mouth.

Embodiment 3:

Embodiment 2 is changed to double-shot moulding as different from Example 2 referring to embodiment 2, with the plastic cement of different colours Binder pin gap is filled up, while designing mold, if bed die is double-colored bed die, makes sole that two-color effect be presented, greatly promotes product Taste and class.

Embodiment 4:

As shown in Figure 5 and Figure 6, injection hole 8 is positioned close to sealing unlike the first embodiment referring to embodiment 1 The place of mouth makes injection molding melten gel flow to sole along 2 clique of vamp, and the melten gel of injection can force vamp clique to be adjacent to mold core, Fig. 6 In arrow indicate injection molding direction.

Embodiment 5:

In conjunction with the embodiments 4 and embodiment 3 two-coloured shoe can also be formed by quadric injection mould on the basis of embodiment 4 Bottom.

The series of detailed descriptions listed above are only practical for this according to the principle features of part injection machine Novel possible embodiments illustrate, they are not to limit the protection scope of the utility model, art technology Equivalence changes made by personnel's technical characterstic according to the present utility model, for example, the mold in conjunction with other injection-moulding device is special The done change of point, or the side mode of the utility model, bed die are integrated, so essence is still, then such to change It should be included within the scope of protection of this utility model.

Claims (3)

1. a kind of waterproof overshoes, it is characterised in that: directly helped in vamp including the vamp made of waterproof fabrics and by injection molding machine The sole of injection molding on mouth, the sole form the welding thick layer docked, institute with the vamp in injection molding process It states sole and is integrated with the vamp by the melting of welding thick layer.

2. waterproof overshoes according to claim 1, it is characterised in that: there are pits for the sole edge.

3. waterproof overshoes according to claim 1, it is characterised in that: the sole is double-color sole.