CN208867462U - Sole injection mold and one kind fly to knit shoes - Google Patents

Abstract

The utility model discloses a kind of sole injection molds and one kind to fly to knit shoes, sole injection mold includes shoe tree, lower die holder, left die holder and right mould seat, the left die holder and right mould seat are located at the left and right side of the lower die holder and the two is retractable, the lower die holder, left die holder and right mould seat can surround outer bottom forming cavity jointly, it is provided with elastic seal ring on the last carving back side of the shoe tree, and is provided with the support division in injection moulding process for offseting with the elastic seal ring on the inner wall of the outer bottom forming cavity.Injection molding material overflows when the structure design of the sole injection mold can be effectively prevented injection molding outer bottom.

Description

Sole injection mold and one kind fly to knit shoes

Technical field

The utility model relates to shoes technical fields, fly to knit more specifically to a kind of sole injection mold and one kind Shoes.

Background technique

Vamp and sole are generally comprised currently, flying to knit shoes, sole includes indsole and outer bottom.It is generally first when production flies to knit shoes Woven vamp, then the edge of the lower edge of vamp and indsole is stitched together, it is obtained in finally by the mode of injection molding The outer bottom that bottom is connected with vamp.

However, often there is the case where injection molding material is overflowed from the junction of vamp and outer bottom, Jin Erying when being molded outer bottom Sound flies to knit the beauty of shoes and flies to knit the final product quality of shoes.

In conclusion injection molding material overflows when how to be effectively prevented injection molding outer bottom, it is that current those skilled in the art are badly in need of It solves the problems, such as.

Utility model content

In view of this, first of the utility model is designed to provide a kind of sole injection mold, the sole injection mould Injection molding material overflows when the structure design of tool can be effectively prevented injection molding outer bottom, and second purpose of the utility model is to provide one Kind flies to knit shoes.

In order to reach above-mentioned first purpose, the utility model is provided the following technical solutions:

A kind of sole injection mold, including shoe tree, lower die holder, left die holder and right mould seat, the left die holder and right mould seat point Not Wei Yu the lower die holder left and right side and the two it is retractable, the lower die holder, left die holder and right mould seat can enclose jointly At outer bottom forming cavity, elastic seal ring is provided on the last carving back side of the shoe tree, and be arranged on the inner wall of the outer bottom forming cavity There is the support division in injection moulding process for offseting with the elastic seal ring.

Preferably, in above-mentioned sole injection mold, in the support division injection moulding process on the inner wall of the outer bottom forming cavity with The elastic seal ring is opposite along the direction for being parallel to outer bottom and offsets.

Preferably, in above-mentioned sole injection mold, the hardness of the elastic seal ring is shore hardness 60HA-70HA.

Preferably, in above-mentioned sole injection mold, after the support division offsets with the elastic seal ring, the lower die holder Gap is all had in the horizontal direction between left die holder and lower die holder and right mould seat；

The lower surface of the support division and the upper surface of the lower die holder are in same level, alternatively, described support The lower surface in portion is higher than the upper surface of the lower die holder.

One kind flies to knit shoes, it is described fly to knit shoes formed using the sole injection mould processing as described in any one of above-mentioned.

Preferably, above-mentioned to fly to knit in shoes, which is divided into first area and second area, and institute from the bottom to top The stitch density for stating first area is greater than the stitch density of second area.

Preferably, above-mentioned to fly to knit in shoes, the junction of the first area and second area connects away from the vamp and outer bottom The position 8-12mm connect.

Preferably, above-mentioned to fly to knit in shoes, it is described fly to knit enhancement layer is provided on the vamp of shoes, and the enhancement layer only covers The regional area of the vamp；The material of the enhancement layer is polyurethane, thermoplastic polyurethane, nylon or polyester；

The enhancement layer is arranged on the vamp by heat pressing process or adhesion technique.

Preferably, above-mentioned to fly to knit in shoes, the molding intensity of the sole injection mold is reflected in the precommpression thickness of vamp On, it is 0.8-1.2mm.

Preferably, above-mentioned to fly to knit in shoes, the edge of the lower edge of vamp and indsole is stitched together, by overturning vamp With indsole to hide suture.

In sole injection mold provided by the utility model, be provided with elastic seal ring on the last carving back side of shoe tree, outer bottom at The support division in injection moulding process for offseting with elastic seal ring is provided on the inner wall of type chamber.So carry out the injection molding of outer bottom When, after the vamp being stitched together and indsole are covered on shoe tree, the bottom of shoe tree is placed in outer bottom forming cavity, left die holder and After the molding of right mould seat, the elastic seal ring on shoe tree offsets with support division, to increase between vamp and outer bottom molding cavity wall Leakproofness, can effectively prevent injection molding material from vamp and outer bottom molding cavity wall between gap in overflow, influence to fly to knit The beauty and final product quality of shoes.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is the cross-sectional view of sole injection mold provided by the embodiment of the utility model；

Fig. 2 is the cross-sectional view for the sole injection mold that another embodiment of the utility model provides；

Fig. 3 is the flow chart provided by the embodiment of the utility model for flying to knit the manufacture craft of shoes；

Fig. 4 is the structural schematic diagram provided by the embodiment of the utility model for flying to knit shoes；

Fig. 5 is the decomposition texture schematic diagram shown in fig. 5 for flying to knit shoes.

In figs. 1-5:

1- vamp, 1a- second area, the first area 1b-, 2- shoe tree, 3- indsole, 4- elastic seal ring, 5- support division, 6- right mould seat, 7- lower die holder, 8- outer bottom forming cavity, the left die holder of 9-, 10- enhancement layer, 11- outer bottom.

Specific embodiment

First of the utility model is designed to provide a kind of sole injection mold, and the structure of the sole injection mold is set Injection molding material overflows when meter can be effectively prevented injection molding outer bottom, and second purpose of the utility model is to provide one kind and flies to knit shoes.

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

In the description of the present invention, it should be understood that term " on ", "lower", "front", "rear", " left side " and " right side " The orientation or positional relationship of equal instructions is to be based on the orientation or positional relationship shown in the drawings, and being merely for convenience of description, this is practical new Type and simplified description, rather than the position of indication or suggestion meaning or element must have particular orientation, with specific orientation structure At and operation, therefore should not be understood as the limitation of the utility model.In addition, term " first ", " second " are used for description purposes only, It is not understood to indicate or imply relative importance.

It please refers to Fig.1 to Fig.3, sole injection mold provided by the embodiment of the utility model is mainly used for injection molding outer bottom 11.Above-mentioned sole injection mold includes shoe tree 2, lower die holder 7, left die holder 9 and right mould seat 6.Wherein, left die holder 9 and right mould seat 6 divide Not Wei Yu lower die holder 7 left and right side.I.e. left die holder 9 is located at the left side of lower die holder 7, and right mould seat 6 is located at the right side of lower die holder 7 Side.And left die holder 9 and right mould seat 6 are retractable, i.e., left die holder 9 and right mould seat 6 can be opened or be molded to realize injection molding.Under Die holder 7, left die holder 9 and right mould seat 6 can surround outer bottom forming cavity 8 jointly, and injection molding material forms outer bottom in outer bottom forming cavity 8 11.Specifically, the bottom wall of outer bottom forming cavity 8 can be formed with the top surface of lower die holder 7, outer bottom is collectively formed in left die holder 9 and lower die holder 7 The right side wall of outer bottom forming cavity 8 is collectively formed in the left side wall of forming cavity 8, right mould seat 6 and lower die holder 7.

Focus on, elastic seal ring 4 is provided on the back side of shoe tree 2, injection molding is provided on the inner wall of outer bottom forming cavity 8 Support division 5 for offseting with elastic seal ring 4 in the process.Specifically, the top of left die holder 9 and right mould seat 6 is respectively to close Mutual direction extends to form support division 5.When so carrying out the injection molding of outer bottom 11, by the vamp 1 being stitched together and indsole 3 After covering on shoe tree 2, the bottom of shoe tree 2 is placed in outer bottom forming cavity 8, after left die holder 9 and the molding of right mould seat 6, support division 5 is supported Hold on the elastic seal ring 4 of shoe tree 2, while can suitably increase the pressure that support division 5 supports shoe tree 2, with increase vamp 1 with Leakproofness between outer bottom forming cavity 8, so as to effectively prevent injection molding material in the gap between vamp 1 and support division 5 It overflows, influences the beauty and final product quality that fly to knit shoes.

Elastic seal ring 4 is made of elastic material, such as can be rubber or silica gel.Elastic seal ring 4 is on shoe tree 2 Position and spue line (spue line be left die holder and right mould seat molding after support the annular lines on shoe tree) profiling be arranged, from And when making sole injection mould closing, support division 5 all supports on elastic seal ring 4, to guarantee sealing effect.Elastic packing The hardness of circle 4 is shore hardness:

60HA-70HA, elastic seal ring is too soft, then sealing effect is bad, and elastic seal ring is too hard, then is easy to damage vamp by pressure 1.Preferably, the hardness of elastic seal ring 4 is 65HA.In other embodiments, the hardness of elastic seal ring 4 can also be respectively 60HA, 62HA, 64HA, 67HA, 69HA and 70HA.

Preferably, circumferential setting of the support division 5 around entire outer bottom forming cavity 8.Last carving of the elastic seal ring 4 around shoe tree 2 The back side is arranged, and the groove for accommodating elastic seal ring 4 can be set on shoe tree 2, and elastic seal ring 4 is stuck in groove, The depth of groove can be 1-5mm.

In order to increase the pressure of 6 pairs of shoe tree 2, left die holder 9 and right mould seat vamps 1, to increase vamp 1 and outer bottom forming cavity 8 Between leakproofness.It can be along parallel with elastic seal ring 4 in 5 injection moulding process of support division on the inner wall of outer bottom forming cavity 8 Horizontal direction in Fig. 1 is opposite and offsets.As shown in Figure 1, support division 5 and elastic seal ring 4 are along the horizontal direction in Fig. 1 Relatively.Certainly, support division 5 and elastic seal ring 4 can also be staggered, and (support division and elastic seal ring can also be with side phases for setting To), it is not limited thereto.

As shown in Fig. 2, after support division 5 and elastic seal ring 4 offset, lower die holder 7 and left die holder 9 and lower die holder 7 and the right side Gap is all had in the horizontal direction between die holder 6.So set, can the left die holder 9 of flexible modulation and right mould seat 6 relative under The gap of die holder 7, so that adjusting support division 5 supports the pressure on elastic seal ring 4.

Further, the lower surface of support division 5 and the upper surface of lower die holder 7 may be in same level.Certainly, The upper surface of lower die holder 7 can be higher than with the lower surface of support division 5, as long as guaranteeing between lower die holder 7 and left die holder 9 and right mould seat 6 Gap is all had in the horizontal direction.

In another embodiment, after can also being offseted with support division 5 and elastic seal ring 4, lower die holder 7 and left die holder 9 and the right side It offsets in the horizontal direction between die holder 6 and does not have gap, be not limited thereto.

Fig. 4 and Fig. 5 are please referred to, the utility model embodiment additionally provides one kind and flies to knit shoes, above-mentioned to fly to knit shoes as using upper Any sole injection mould processing is stated to be formed.Therefore, which please refers to above-described embodiment, herein no longer It repeats.

Specifically, vamp 1 is divided into first area 1b and second area 1a from the bottom to top, i.e. first area 1b and sole connect It connects, second area 1a is located at the side of the separate sole of first area 1b.Also, the stitch density of first area 1b is greater than second The stitch density of region 1a, so that 1 lower edge of vamp obtains the braiding structure of relative closure, note when can be effectively prevented injection molding Plastics are overflowed from vamp 1.

In addition, second area 1a is woven with the lower stitch density of opposing first regions 1b, thus improve fly to knit shoes it is whole The pliability and gas permeability of body and improve the wearing comfort for flying to knit shoes.The lower stitch density of second area 1a, with Subject to comfortable and easy to wear, no more than the stitch density of first area 1b.

Further, the position 8- that the junction of first area 1b and second area 1a are connect away from vamp 1 with outer bottom 11 12mm.I.e. the height of first area 1b is 8-12mm.Preferably 10mm, so both prevented injection molding material cross first area 1b from Second area 1a overflows, and not will increase and be woven into this.Certainly it can also be 8mm, 9mm, 11mm, 12mm, be not limited thereto.

In above-described embodiment, also there are lacing eyelets, and the circumocular stitch density of shoestring is greater than second area on vamp 1 The stitch density of 1a, to promote the resistance to tear-strength of lacing eyelets.It is understood that in other embodiments, lacing eyelets can be with It omits, knits out multiple U-shaped bands, at shoes back for wearing shoestring.It is understood that in other embodiments, lacing eyelets It can be omitted with U-shaped band, vamp 1 is whole to be woven by elastomeric yarn material, and vamp 1 can be wrapped up in flexibly and is located on people's foot.

The material of indsole 3 can be composite, and the specially compound package foam of reinforcement cloth, more soft in the present embodiment It is soft, to enhance the comfort level of the resilience of sole, bending resistance and human body dress.

In order to enhance the intensity of vamp 1, enhancement layer 10 can also be set on vamp 1, enhancement layer 10 can only cover shoes The regional area in face 1.The wear resistance for flying to knit vamp 1 can be enhanced in one side enhancement layer 10, and another aspect enhancement layer 10 can Limitation flies to knit the random stretching of vamp 1, provides preferably wrapped, stickiness for the foot of wearer.

Specifically, the material of enhancement layer 10 is PU (polyurethane, polyurethane), TPU (Thermoplastic Polyurethanes, thermoplastic polyurethane), PA (nylon) or polyester (Polyethylene terephthalate).Certainly, Enhancement layer 10 can also be other plastic materials, be not limited thereto.

Further, enhancement layer 10 can be arranged on vamp 1 or enhancement layer 10 by heat pressing process or adhesion technique It can also sew on vamp 1, be not limited thereto.

It increases support division 5 and vamp 1 is supported into the pressure on shoe tree 2, injection molding material can be further prevented to overflow, while by In the setting of elastic seal ring 4, and vamp will not be damaged by pressure.Mold specifically molds the size of intensity, reflects onto precommpression thickness, For 0.8-1.2mm.I.e. vamp 1 is supported the pressure on elastic seal ring 4 by support division 5 so that the precommpression of vamp 1 with a thickness of 0.8-1.2mm, wherein precommpression thickness is defined as the deflection that its thickness generates after by pressure of vamp 1.? Before 1 with a thickness of 2mm, after support division 5 and elastic seal ring 4 compress, vamp 1 is with a thickness of 1.2mm, then precommpression thickness As 0.8mm.In the present embodiment, precommpression is with a thickness of 0.8mm.It is understood that in other embodiments, precommpression is thick Degree can also be 0.9mm or 1.0mm.

During sole injection mould processing, vamp 1 is supported the pressure on elastic seal ring 4 by support division 5, I.e. the molding intensity of mold can be greater than standing molding intensity, wherein standing molding strength definition is not set elasticity on shoe tree 2 When sealing ring 4, vamp 1 is pressed on shoe tree 2 molding intensity when will not damage vamp 1 by pressure again by support division 5.Specifically, it sets up Molding intensity is P, and P≤15Kgf/cm^2.(kgf/cm^2, pressure unit, 1kgf/cm^2 are equal to every square li of body surface Rice bears the pressure of 1kgf.1kgf is equal to the centrifugal force that one kilogram of substance is born at the earth's surface).

Vamp 1 and the connecting line of indsole 3 influence to fly to knit the beauty of shoes in order to prevent, can be by the lower edge of vamp 1 in The edge at bottom 3 is stitched together, and afterwards turns over vamp 1 and indsole 3 to hide suture.After overturning, the seam of indsole 3 and vamp 1 Zygonema does not influence the appearance for flying to knit shoes in the inside of vamp 1.

Specifically, when weaving vamp 1 using yarn, vamp 1 by yarn integrated woven and can form closing structure.It can be with Understand, the shoes back of vamp 1 open can also weave, and only need to weave again flap at shoes back.Vamp 1 can also basis Need to knit out various decorative patterns.

The lower edge of vamp 1 and the edge of indsole 3 that braiding finishes are linked together.Specifically, vamp 1 and indsole 3 Between can suture or bond.

Further, the vamp 1 to link together and 3 sets of indsole are placed on mold on shoe tree 2, and by shoe tree 2, After left die holder 9 and right mould seat 6 mold, support division 5 offsets with the elastic seal ring 4 on shoe tree 2, is then injected into injection molding material, is molded Material forms the outer bottom 11 to link together with indsole 3 and vamp 1.

Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other The difference of embodiment, the same or similar parts in each embodiment may refer to each other.

The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein The widest scope consistent with features of novelty.

Claims (10)

1. a kind of sole injection mold, which is characterized in that including shoe tree, lower die holder, left die holder and right mould seat, the left die holder and Right mould seat is located at the left and right side of the lower die holder and the two is retractable, the lower die holder, left die holder and right mould seat energy It is enough to surround outer bottom forming cavity jointly, elastic seal ring is provided on the last carving back side of the shoe tree, and the outer bottom forming cavity is interior The support division in injection moulding process for offseting with the elastic seal ring is provided on wall.

2. sole injection mold according to claim 1, which is characterized in that supporting on the inner wall of the outer bottom forming cavity It is opposite along the direction for being parallel to outer bottom with the elastic seal ring and offset in portion's injection moulding process.

3. sole injection mold according to claim 1, which is characterized in that the hardness of the elastic seal ring is that shore is hard Spend 60HA-70HA.

4. sole injection mold according to claim 1, which is characterized in that the support division and the elastic seal ring phase After supporting, gap is all had in the horizontal direction between the lower die holder and left die holder and lower die holder and right mould seat；

The lower surface of the support division and the upper surface of the lower die holder are in same level, alternatively, the support division Lower surface is higher than the upper surface of the lower die holder.

5. one kind flies to knit shoes, which is characterized in that described to fly to knit shoes using such as sole of any of claims 1-4 injection molding Mold is processed to be formed.

6. according to claim 5 fly to knit shoes, which is characterized in that the vamp for flying to knit shoes is divided into first area from the bottom to top And second area, and the stitch density of the first area is greater than the stitch density of second area.

7. according to claim 6 fly to knit shoes, which is characterized in that the first area and the junction of second area are away from institute State the position 8-12mm that vamp is connect with outer bottom.

8. according to claim 5 fly to knit shoes, which is characterized in that it is described fly to knit enhancement layer is provided on the vamp of shoes, and The enhancement layer only covers the regional area of the vamp；The material of the enhancement layer is polyurethane, thermoplastic polyurethane, nylon Or polyester；

The enhancement layer is arranged on the vamp by heat pressing process or adhesion technique.

9. according to claim 5 fly to knit shoes, which is characterized in that the molding intensity of the sole injection mold is reflected in shoes It is 0.8-1.2mm on the precommpression thickness in face.

10. according to claim 5 fly to knit shoes, which is characterized in that the edge of the lower edge of vamp and indsole to be sewn to Together, by overturning vamp and indsole to hide suture.