CN105729848A

CN105729848A - Method for producing double-color and double-hardness sole through single-color injection machine table by using middle plate to separate colors

Info

Publication number: CN105729848A
Application number: CN201610240774.0A
Authority: CN
Inventors: 胡楚吉
Original assignee: Skech Shoes (dongguan) Co Ltd
Current assignee: Skech Shoes (dongguan) Co Ltd
Priority date: 2016-04-18
Filing date: 2016-04-18
Publication date: 2016-07-06
Anticipated expiration: 2036-04-18
Also published as: CN105729848B

Abstract

The invention relates to a method for producing a double-color and double-hardness sole through a single-color injection machine table by using a middle plate to separate colors. The method comprises the following steps: (1) producing a one-color and one-hardness cold mold base in advance by using a TPR injection machine table through a mold of the cold mold base, and then preparing the single-color injection machine table, the cold mold base with one color and one hardness and an EVA injection mold; (2) placing the one-color cold mold base in a lower mold cavity of a lower mold; (3) placing a middle plate mold on the lower mold, and closing an upper mold; (4) injecting EVA with different colors in the upper mold by using the single-color injection machine table, and enabling a partially formed sole to be positioned between the upper mold and the middle plate mold; and (5) opening the molds, taking out the middle plate mold, then closing the molds, adding sulfur and heating, and enabling the cold mold base and the EVA material subjected to injection molding in the upper mold to be subjected to hot melting synthesis so as to form the sole with two different colors or different hardness. The method is high in popularity rate and can be used flexibly, capacity is improved, and the unit price of the mold and an EVA finished product is low; production efficiency is improved; and the problem of mixing of two colors is solved effectively.

Description

The method that in monochromatic injection board employing, plate produces double-color and double-hardness sole every color

Technical field

The present invention relates to footwear production technology, particularly relate to a kind of method that during monochrome injection board that can be widely used for producing sole class and sports goods class adopts, plate produces double-color and double-hardness sole every color.

Background technology

Resilience at the bottom of EVA shoe and tension stress are high, toughness is high, have good shockproof, shock-absorbing capacity, heat insulation, heat-insulating and cold and low temperature performance excellent, can cold-resistant and tan by the sun, closedcells, soundproof effect are good, closedcells structure, do not absorb water, moistureproof, water resistance is good, the chemicals corrosion such as sea water resistance, oils and fats, acid, alkali, antibacterial, nontoxic, tasteless, pollution-free.

There is at the bottom of EVA shoe good flexibility, the elasticity as rubber, below 0 DEG C, it still is able to have good pliability, the transparency and lustrous surface property are good, and chemical stability is good, and aging resistance and resistance to ozone intensity are good, avirulence.

Existing injection EVA does double-colored technology mainly two schemes:

One, two-color injection board is adopted to do double-colored (namely two kinds of colors adopt machine to be emitted directly toward mould), the inferior position of this technology is: 1. expensive machinery (about eight every 1,000,000 RMB of the double-colored board of erect-position, about monochromatic board just 500,000 RMB)；2. popularity rate is low, the only monochromatic board of general factory, it is impossible to meet volume production production capacity；3. production capacity is low, and an erect-position fills one piece of mould only, (namely monochromatic one erect-position of machine can fill two pieces of moulds)；4. mould unit price is more expensive than monochromatic mould；5. EVA bill kept on file valency is high.

Its two, adopt mould to put into evacuation board and do double-colored (namely two kinds of colors adopt and first do chill embryo finished product, then employing is manually placed into mould), the inferior position of this technology is: 1. popularity rate is not high, it is impossible to meet volume production production capacity；2. EVA finished product fraction defective is high；3. can only do double-colored, it is impossible to do monochrome (namely in the situation not having double-colored order, the idle waste of a large amount of board can be caused).

Therefore, for the above, it is necessary to prior art is effectively innovated.

Summary of the invention

For disadvantages described above, the present invention provides that a kind of popularity rate is high, can use flexibly, production capacity improves, mould with EVA finished product unit price is relatively low, be substantially reduced product fraction defective, monochrome injection board that not have two form and aspect mixed adopt in plate every the method for color production double-color and double-hardness sole, to solve many deficiencies of prior art.

For achieving the above object, the present invention is by the following technical solutions:

A kind of method that in monochromatic injection board employing, plate produces double-color and double-hardness sole every color, is made up of following steps:

In advance with chill embryo mould adopt TPR penetrate board produce a kind of color and a kind of hardness chill embryo or directly employing do not foam EVA raw material, prepare monochrome injection board again, possess a kind of color and the chill embryo of a kind of hardness, injection EVA mould, this injection EVA mould is made up of upper mould, middle template die, counterdie, middle template die center therein is offered middle template die cold embryo die cavity and sets up some middle plate spacing holes in these die cavity both sides, and each middle plate spacing hole forms the protruding middle plate limited post of correspondence in the middle template die back side；Simultaneously, described upper mould center be provided with mould sole EVA inject shaping mold cavity and these forming hole both sides set up some on plate spacing hole in mould, described counterdie center is provided with counterdie die cavity and sets up plate limited post in some counterdies in these counterdie die cavity both sides, and counterdie edge arranges EVA and penetrates rifle and inject interface；

(2) the EVA raw material that the chill embryo of above one of which color or direct employing do not foamed puts into the counterdie die cavity of counterdie；

(3) being placed on counterdie by middle template die again, close upper mould；

(4) then, adopt monochrome injection board, shoot material injection EVA in upper mould with different from chill embryo color, make partially-formed sole between upper mould and middle template die；

(5) last, die sinking, template die in taking-up, then matched moulds adds sulfur and heat, allow cold embryo or directly employing do not foam the part sole hot melt synthesis of EVA raw material and upper mould ejection formation, thus forming the sole of two kinds of different colours of sole or different hardness.

Described injection EVA material adopts the different color of the EVA raw material that do not foam with chill embryo or direct employing and hardness.

Present invention have the beneficial effect that

(1) first, step adopts the advantage that monochromatic machine is double-colored EVA be in that:

1. factory at the bottom of existing injection EVA shoe, is all that popularity rate is high based on monochromatic board；

2. board can do monochrome, it is also possible to does double-colored, it is possible to use flexibly；

3. production capacity can improve, and existing board can fully meet production capacity；

4. mould unit price is cheap；

5. EVA finished product unit price is relatively cheap.

(2) simultaneously, template die technology in adopting in step, product fraction defective can be substantially reduced, steady quality at the bottom of the EVA shoe produced, improve production efficiency.

(3), in manufacturing process, the EVA raw material that chill embryo or direct employing do not foamed is placed on the counterdie position of board, and the complete color separation of the dichromatism in production manufacturing process can be made clear, and efficient solution has decided the problem that existing two form and aspect are mixed.

Accompanying drawing explanation

Below according to accompanying drawing, the present invention is described in further detail.

Fig. 1 is the view from top to bottom of the upper mould of the present invention, middle template die, counterdie；

Fig. 2 is the inversion sequential schematic of the upper mould of the present invention, middle template die, counterdie.

In figure:

1, upper mould；2, middle template die；3, counterdie；

11, plate spacing hole in upper mould；12, upper mould sole EVA injects shaping mold cavity；21, middle plate spacing hole；22, the cold embryo die cavity of middle template die；23, middle plate limited post；31, plate limited post in counterdie；32, EVA penetrates rifle and injects interface；33, counterdie die cavity.

Detailed description of the invention

As shown in Figure 1-2, the method that in the monochrome injection board employing described in the embodiment of the present invention, plate produces double-color and double-hardness sole every color, it is made up of following steps:

In advance with chill embryo mould adopt TPR penetrate board produce a kind of color and a kind of hardness chill embryo or directly employing do not foam EVA raw material, preparing monochrome injection board, chill embryo (a kind of color and a kind of hardness) or the EVA raw material that do not foam, injection EVA mould (another kind of color another kind hardness) again, this injection EVA mould is made up of upper mould 1, middle template die 2, counterdie 3；Middle template die 2 center therein is offered middle template die cold embryo die cavity 22 and sets up some middle plate spacing holes 21 in these die cavity both sides, and each middle plate spacing hole 21 forms the protruding middle plate limited post 23 of correspondence in middle template die 2 back side；Simultaneously, described upper mould 1 center be provided with mould sole EVA inject shaping mold cavity 12 and these forming hole both sides set up some on plate spacing hole 11 in mould, described counterdie 3 center is provided with counterdie die cavity 33 and sets up plate limited post 31 in some counterdies in these counterdie die cavity 33 both sides, and counterdie 3 edge arranges EVA and penetrates rifle and inject interface 32；

(2) the EVA raw material that the chill embryo of above one of which color or direct employing do not foamed puts into the counterdie die cavity 33 of counterdie 3；

(3) middle template die 2 is placed on counterdie 3, upper mould 1 (upper mould 1, middle template die 2, counterdie 3 order, separated by middle template die 2 between upper mould 1 and counterdie 3) of closing；

(4) then, adopt monochrome injection board, do not foam EVA raw material injection EVA in upper mould 1 with shoot material or directly adopt different from chill embryo color, make partially-formed sole between upper mould 1 and middle template die 2；

(5) last, die sinking, template die 2 in taking-up, matched moulds adds sulfur and heats again, allow cold embryo or directly employing do not foam the part sole hot melt synthesis of EVA raw material and upper mould 1 injection molding, thus forming the sole of two kinds of different colours of sole or different hardness, solving only one of which on monochromatic board and penetrating the problem that rifle manufactures double-color and double-hardness sole.

The above-mentioned description to embodiment be for the ease of those skilled in the art it will be appreciated that and application this case technology, these examples obviously can be made various amendment by person skilled in the art easily, and General Principle described herein is applied in other embodiments without through performing creative labour.Therefore, this case is not limited to above example, and during any employing monochrome injection EVA board and mould adopt, plate produces, every chromogen reason, the method feature formed at the bottom of double-color EVA shoes, all should in the protection domain of this case.

Claims

1. the method that in a monochromatic injection board employing, plate produces double-color and double-hardness sole every color, it is characterised in that be made up of following steps:

(5) last, die sinking, template die in taking-up, then matched moulds adds sulfur and heat, allow cold embryo or directly employing do not foam the part sole hot melt synthesis of EVA raw material and upper mould injection molding, thus forming the sole of two kinds of different colours of sole or different hardness.

2. the method that in monochromatic injection board employing according to claim 1, plate produces double-color and double-hardness sole every color, it is characterised in that: described injection EVA mould adopts the color different from chill embryo mould and hardness.