CN109480381A - A kind of high resiliency dual density foam-in-mould rubber soles and its production technology - Google Patents

Abstract

The invention discloses a kind of high resiliency dual density foam-in-mould rubber soles and its production technologies, belong to rubber product technology field.Rubber soles of the invention include high density outer layer and low-density internal layer, for the integral structure with mold depanning；The material of the high density outer layer and low-density internal layer is respectively high density sizing material and low-density sizing material, the spring supporting for being covered with plumbness is also uniformly buried in the low-density internal layer, it can play the role of skeletal support and health care massage, spring is optional consistent with low-density caoutchouc elasticity, to reinforce the support strength of low-density internal layer；And the two-way injection of dual-density rubber material, foaming and sulfuration process are completed in a mold using foaming-vulcanization production system in the two-way injection mold of dual density and is made, it solves insufficient rubber soles elasticity, dual-density sole injection and foaming, vulcanization separately to carry out, energy consumption, time-consuming, problem at high cost.

Description

A kind of high resiliency dual density foam-in-mould rubber soles and its production technology

Technical field

The invention belongs to rubber product technology fields, specifically, being related to a kind of high resiliency dual density foam-in-mould Rubber soles and its production technology.

Background technique

Shoes are necessitys indispensable in daily life, in response to different effect and external form, are had on the market various each The dazzling type of sample, no matter but the appearance of shoes how to change, it is comfortable and easy to wear with provide foot it is enough protection be only It is most important.Whether for modern people's work requirements or recreation, generally require to walk or stand for a long time, and foot The total weight for supporting human body, is easy to feel to ache using foot for a long time, or even generates Plantar Fasciitis, therefore a pair of order makes User's shoes comfortable and easy to wear are optimal auxiliary tools.

Rubber soles are widely used in sport footwear, leather shoes, are also approved, to reduce cost, mitigate weight, usually By top-level design in it at cell structure, to guarantee its intensity, lattice partition is thicker, and without elasticity, general lattice partition is upward (with plantar contact), to guarantee foot of not belching, the enough isolation insoles of setting in shoe cavity, after insole breakage, entire shoes are also just located It is not suitable for walking at a distance after dress because sole is without elasticity in the state of scrapping, is not particularly well suited for the elderly's dress.

Under normal circumstances, the substance of the high molecular materials hair engaging aperture such as rubber is made all to can be used as foaming agent, physical blowing is one The common rubber pange technique of kind, principle is that foaming agent is dissolved in high polymer, in the pressure reduction or stabilization of system Becoming gas when raising makes the substance of high polymer volume expansion and foaming of boiling, its advantage is that residue decomposition is not generated, it will not Air or corrosion process equipment are polluted, but needs to increase the special installation (continuous frothing machine) to foam under high-pressure foam, for hair It is particularly severe to steep equipment requirement, uses extremely inconvenient, also increases cost of equipment.

The process flow of existing physical blowing is to carry out rubber pange using continuous frothing machine --- injection squeezes out molding Forming --- vulcanization ---, final product, technique is cumbersome, and equipment investment is big, and maintenance of equipment expense is high, particularly with rubber powder Dual density product, process flow are increasingly complex.

Through retrieving, Chinese patent publication No. CN 106188680 B, publication date 2018.04.06, denomination of invention: Yi Zhongnai Oil, cold-resistant dual density footwear rubber sole, the compatibility of raw material is reasonable, using natural rubber, butadiene rubber and nitrile rubber conduct Major ingredient is aided with other auxiliary agents, and ingredient takes into account the craftsmanship that sizing material is processed and physicochemical property, oil resistant, the cold tolerance of sizing material are good；It should Invention additionally provides the preparation method of rubber sole, according to rubber plastic steelmaking, sizing material and refine, sizing material mixing, rubber compounding, rubber it is big The manufacture at bottom and etc. successively carry out, this method is simple, and process is easily controllable, and the shoes outsole hardness prepared is moderate, durability, Cold resistance is preferable.The present invention is suitable for the rubber articles such as preparation footwear oil resistant, arctic rubber outsole and sebific duct, sealing ring.The hair It is bright to limit technical process from formula and process conditions, using traditional process equipment, when producing the rubber soles of different densities, The problem of injection and vulcanization separately carry out, and consume energy, is time-consuming, at high cost, equipment cost and process costs is not solved accordingly Certainly.

Chinese patent publication No. CN 107618143 A, publication date 2018.01.23, denomination of invention: a kind of rubber injection at Type curing line, including conveying, the leading portion of conveying are equipped with rubber injection moulding machine, the back segment peace of conveying Equipped with vulcanizing press, the front of rubber injection moulding machine is equipped with across the supporting platform above conveying, Zhi Chengping One end of platform and the seat of honour of rubber injection moulding machine connect, and are equipped with die sinking in the front of rubber injection moulding machine in supporting platform It mechanism and takes product construction, die opening mechanism and product construction is taken to be arranged along the direction perpendicular to conveying, set along conveying There is linear guide, be slidably equipped in linear guide for taking out mold from rubber injection moulding machine, mold is delivered to plate sulphur Product after vulcanization is simultaneously delivered to the transport trolley taken below product construction by change machine.Injection molding of rubber curing line note Separately progress is penetrated and vulcanized, consumes energy, is time-consuming, at high cost.

Summary of the invention

1. technical problems to be solved by the inivention

For overcome rubber soles elasticity insufficient exists in the prior art, dual-density sole injection, foaming and vulcanization separate into Row, energy consumption, time-consuming, problem at high cost, the present invention provide a kind of high resiliency dual density foam-in-mould rubber soles and its production Technique.Dual-density rubber sole design of the invention density layer structure in pairs；During it makes, by double-density injection molding, foaming And vulcanization plant is integrated, reduces cost, the molding time of shoe sole article, and reduces energy consumption, moreover it is possible to eliminate Shipping expense between shoe sole article process.

2. technical solution

To solve the above problems, the present invention adopts the following technical scheme:

A kind of high resiliency dual density foam-in-mould rubber soles, including high density outer layer and low-density internal layer are same mold The integral structure of depanning；The material of the high density outer layer and low-density internal layer is respectively high density sizing material and low-density glue Expect, also uniformly buries the spring supporting for being covered with plumbness in the low-density internal layer；And hair in the application two-way injection mold of dual density It soaks that type-vulcanization production system completes the two-way injection of dual-density rubber material in a mold, foaming and sulfuration process are made, can have Effect avoids shoe sole article in the circulation of each process, to reduce production cost.

Further embodiment, spring-supported end are fixed with connecting plate, facilitate spring supporting synchronization pre- in mold It sets and fixes, preset spring supporting is carried out before the vulcanization of rubber, the bond strength of spring supporting and rubber, rubber can be effectively improved It in embeddable spring gap, synchronous with spring can rise and fall, play the role of skeletal support, same mold production, spring and rubber The bond strength of glue is big, and composite effect is good, and spring may be selected with low-density rubber layer elasticity unanimously, to reinforce in low-density The support strength of layer, slows down elastic extenuation caused by low-density internal layer frequent deformation, and spring supporting can be distributed in vertical distribution 5, cooperate with the direction of each toe, tunable foot vertical train of thought abundant plays the role of effective health care massage, spring Support diameter is slightly less than low-density internal layer thickness, and sole is avoided to contact with the really up to the mark of spring.

Further embodiment, the component formula of low-density sizing material and its respective parts by weight include: solution polymerized butadiene styrene rubber 40~ 50, natural rubber 15~25, fumed silica 5~10, isoprene rubber 7~12, naphthenic oil 7~11, stearic acid 0.5~1.5, Zinc oxide 1~5, resin 3~8, cumyl peroxide 0.1~0.3；High density gum base ingredients formula and its respective parts by weight packet It includes: compounded rubber 35~45, reclaimed rubber 25~35, natural rubber 2~5, butadiene rubber 4~8, resin 2~5, carbon black 7~ 12, naphthenic oil 2~5, stearic acid 0.5~1, zinc oxide 1~4, complex antiager 0.3~0.8, compound accelerant 0.8~1.6, Composite vulcanizing agent 0.9~2.3, microballon agent (i.e. microballon) 0.1~0.5, sole elasticity made from the component and wearability are high, resistance to tear Fragility is strong, can act synergistically with spring supporting, further increase sole elasticity and wearability.

Further embodiment, in the two-way injection mold of dual density foaming-vulcanization production system include pressing mold vulcanization platform and Its symmetrically arranged two injections machine base in left and right sides further includes the die venting of side and filling before or after pressing mold vulcanization platform Mechanism of qi structure；Pressing mold molding and foaming vulcanization plant are fixed on the pressing mold vulcanization platform；It is solid respectively on 2 injections machine base Surely there is sizing material injection device, 2 sizing material injection devices are oppositely arranged, respectively high density sizing material injection device and low-density sizing material Injection device；The pressing mold molding and foaming vulcanization plant include two mold cores that shape is identical, specification is different, the height Density sizing material injection device and low-density sizing material injection device respectively correspond to two kinds of different plasticized rubber material of density different Mold core is successively injected into the mold of pressing mold molding and foaming vulcanization plant, and the die venting and inflation mechanism are being injected The air in the mold of pressing mold molding and the vulcanization plant that foams is emptied before device injection, high pressure gas is passed through pressing mold after injection In the mold of molding and foaming vulcanization plant, the pressing mold molding and foaming vulcanization plant carry out the plasticized rubber material in mold Pressing mold foaming and vulcanization, in the two-way injection mold of dual density foaming-vulcanization production system can by injection moulding, inflatable and exhaust and Foaming, vulcanization plant are integrated, avoid heat losses caused by each process circulation in the prior art and process circulation cost, solution Multiple pressurization, heating and the secondary glue for traditional rubber soles production technology of having determined are pasted, energy consumption, time-consuming, at high cost one Big disadvantage.

Further embodiment, 2 sizing material injection devices include loading hopper, injection cylinder, barrel is injected in plasticizing, plasticizing adds Hot device, injection nozzle control oil cylinder, injection head and injection seat Shift cylinder；The beginning phase of the loading hopper and plasticizing injection barrel It is logical, in the cylinder barrel of the beginning insertion injection cylinder of plasticizing injection barrel, and tight against the injection ram in injection cylinder；The plasticizing The built-in plasticizing injection screw of barrel is injected, the end point of injection screw is plasticized, prestores plasticizing material chamber；It is described to prestore plasticizing material Chamber is connected to by feed pipe with the material chamber that the injection nozzle of plasticizing injection barrel bottom controls oil cylinder front end, the charging of the injection head End is connected to chamber is expected, dispensing end form and foam with the pressing mold mold of vulcanization plant communicates；The injection nozzle controls oil cylinder Cylinder barrel is fixedly connected with the cylinder barrel of injection seat Shift cylinder, and for the piston rod of the two backwards to being arranged, the injection seat Shift cylinder is living Stopper rod and the injection cylinder are both secured on injection machine base, and the plasticizing heater circulating type is fixed on plasticizing injection barrel Outer wall, for being plasticized sizing material.

Further embodiment, pressing mold molding and foaming vulcanization plant include die cylinder, upper mold half, lower mold half, mould Have inner core one, mold core two and mold core rotational fuel tank；The lower mold half is fixed on pressing mold vulcanization platform, and lower mold half is just Top is equipped with upper mold half, and the upper mold half is detachably connected with die cylinder；The die cylinder passes through fixation Frame is fixed；The mold core one is identical with two shape of mold core, specification is different, and the two tail end is opposite, converts with mold core Bracket is detachably fixed, and the mold core conversion support is T-shaped, after mold core rotational fuel tank is inserted into bottom end, with mold core rotational fuel tank Shaft is fixedly connected；The mold core rotational fuel tank driven mold inner core one, mold core two upper mold half and lower mold half it Between convert；Upper mold half, lower mold half, mold core one and mold core two are equipped with according to the shape of sole body；Institute Mold core rotational fuel tank is stated to be fixed on pressing mold vulcanization platform；The pressing mold molding and foaming vulcanization plant further include molding crossbeam, institute The hydraulic stem for stating die cylinder is fixedly connected with upper mold half again after the pilot hole of molding crossbeam；The molding crossbeam is fixed In on the fixed frame that pressing mold formed and foamed vulcanization plant；The pressing mold molding and foaming vulcanization plant further include mold heating Device；The die heater is set to the top of upper mold half and/or the lower part of lower mold half.

Further scheme, the high density sizing material injection device and low-density sizing material injection device respectively include highly dense Degree sizing material injection head and low-density sizing material injection head, the high density sizing material injection head and low-density sizing material injection head are arranged on pressure The mold two sides of mold forming and the vulcanization plant that foams, when injection, and the mould cavity for the vulcanization plant that forms and foam with pressing mold It communicates.

Further scheme, die venting in the two-way injection mold of dual density in foaming-vulcanization production system and Inflation mechanism includes bracket, cylinder, cylinder block and hydraulic station；The bracket is the annular gantry that there is through-hole in centre, the gas Cylinder is fixed on the circular table of bracket, and the cylinder block is fixed on the bottom of the circular table of bracket, the cylinder and oil The built-in cylinder piston and oil cylinder piston for connecting same piston rod, the cylinder head pass through tracheae and are compression molded into cylinder cylinder body respectively The mold inner-cavity of type and the vulcanization plant that foams communicates；The cylinder block is divided into upper cavity and lower chamber, two chambers by oil cylinder piston Body passes through an oil pipe respectively and communicates with hydraulic station.

Further scheme, mold core conversion support is lift, when sizing material is injected, in driven mold inner core one and mold Core two moves down；The outer arm circulating type of the cylinder is fixed with block heater, and the bottom side of cylinder is provided with cylinder and unloads stomata；It is described The diameter of cylinder is greater than cylinder block.

A kind of production technology of high resiliency dual density foam-in-mould rubber soles, step are as follows:

Step 1: high density stock rubber is plasticized: high density sizing material injection nozzle controls oil cylinder first by high density sizing material feeding Pipe and the closing of high density sizing material injection head, increase density stock rubber pellet by high density sizing material loading hopper and enter high density glue Material plasticizing injection barrel, high density sizing material is plasticized injection screw rotation, and while rotation, high density sizing material plasticizing injection screw is supported Tight high density sizing material injection ram persistently moves back, and the sizing material after plasticizing is intracavitary temporary in high density sizing material plasticizing material；

Step 2: molding: mold core rotational fuel tank rotates mold core conversion support, and mold core one is inserted into upper mold half under At center between half mold, starting die cylinder is moved down, and upper mold half is closed up with lower mold half；

Step 3: vacuumizing: starting hydraulic station, high pressure oil enter cylinder block epicoele by high-pressure oil pipe, push oil cylinder Piston moves down, and oil cylinder piston drives cylinder piston to move together, and upper chamber of air cylinder forms vacuum, and the inner chamber gas of molding is drained；

Step 4: injection: starting high density sizing material injection seat Shift cylinder, after the insertion molding of high density sizing material injection head Upper mold half and lower mold half in, start high density sizing material injection cylinder, high density sizing material injection ram Forward, by high density In high density stock rubber injection mold in sizing material pre-firing material-holding chamber；High density sizing material injection head is closed；Start high density glue Expect injection seat Shift cylinder, high density sizing material injection head is exited into mold, molding is stood after injection；

Step 5: low-density stock rubber is plasticized: low-density sizing material injection nozzle controls oil cylinder first by low-density sizing material feeding Pipe and the closing of low-density sizing material injection head, add low-density stock rubber pellet to enter low-density glue by low-density sizing material loading hopper Material plasticizing injection barrel, low-density sizing material is plasticized injection screw rotation, and while rotation, low-density sizing material plasticizing injection screw is supported Tight low-density sizing material injection ram persistently moves back, and the sizing material after plasticizing is intracavitary temporary in low-density sizing material plasticizing material；

Step 6: die sinking: starting die cylinder moves up, and opens the upper of the sole body for including half of high density outer layer respectively Half mold and lower mold half start mold core rotational fuel tank, and mold core conversion support extracts mold core one out, and by mold core two It is inserted at the center between upper mold half and lower mold half；

Step 7: pre-buried spring: spring is embedded in the sole body of half of high density outer layer of lower mold half；

Step 8: molding: starting die cylinder moves down, and upper mold half is closed up with lower mold half, by two indwelling of mold core；

Step 9: injection: the decline of mold core conversion support reserves the injection position of low-density sizing material injection head；Start low-density Sizing material injection seat Shift cylinder starts in the upper mold half and lower mold half after the insertion molding of low-density sizing material injection head low Density sizing material injection cylinder, low-density sizing material injection ram Forward, by the low-density sizing material in low-density sizing material pre-firing material-holding chamber Rubber injects in mold；Low-density sizing material injection head is closed；Start low-density sizing material injection seat Shift cylinder, by low-density sizing material Injection head exits mold；

Step 10: mold core conversion support rises to original position, start mold core rotational fuel tank, mold core conversion support is by mold core Two extractions；

Step 11: molding again: starting die cylinder moves down, will include respectively the upper mold half of half of sole body with Lower mold half is closed up again, the hollow form after removing inside sole body in mold core two；

Step 12: high-pressure aerated: starting hydraulic station, high pressure oil enter cylinder block cavity of resorption by high-pressure oil pipe, push Oil cylinder piston moves up, and oil cylinder piston drives cylinder piston to move up together, and cylinder piston leads to the pressure high temperature hot gas of upper chamber of air cylinder It crosses air tube and squeezes into upper mold half and lower mold half inner cavity；

Step 13: foaming and vulcanization: heating up to the sole body of upper mold half and lower mold half inner cavity and pressurization, adjusts Die cylinder back pressure makes die cylinder switch to floating position, and foaming agent reduces foaming, and rubber swelling is made to form spongy state, Pressure maintaining is carried out again, heat preservation, protects the time, reaches cures requirements；

Step 14: pressure release: by internal high temperature and high pressure gas pressure release；

Step 15: die sinking: starting die cylinder moves up, and opens upper mold half and lower mold half, takes out sole body.

3. beneficial effect

Compared with prior art, the present invention has the following obvious advantages:

(1) high resiliency dual density foam-in-mould rubber soles of the invention, the carcass setting of double-layer structure, can increase elasticity Effect, without additional inflation, low-density internal layer is buried when being covered with spring supporting, plays the role of skeletal support, same mold produces, bullet The bond strength of spring and rubber is big, and composite effect is good, and spring is optional consistent with low-density caoutchouc elasticity, low close to reinforce The support strength for spending internal layer slows down the decaying of elastic fatigue caused by low-density internal layer frequent deformation；

(2) high resiliency dual density foam-in-mould rubber soles of the invention, spring-supported end are fixed with connecting plate, side Just spring supporting is synchronous preset and fixed in mold, and preset spring supporting is carried out before the vulcanization of rubber, can effectively improve bullet Spring supports and the bond strength of rubber, in the embeddable spring gap of rubber, synchronous with spring can rise and fall, play enhancing skeleton Supporting role；Spring can be distributed 5 in vertical distribution, cooperate with the direction of each toe, and tunable foot is abundant perpendicular To train of thought, play the role of effective health care massage, spring supporting diameter is slightly less than low-density internal layer thickness, avoids sole and spring Contact really up to the mark；

(3) high resiliency dual density foam-in-mould rubber soles of the invention, high density sizing material injection device injectable are highly dense It spends sizing material rubber material (such as density=1), low-density sizing material injection device injectable low-density sizing material (such as density=0.5), in die cavity Setting high density sizing material mold core (by exchanging oil cylinder control for) in advance after the completion of injection, opens mold, exchanges high density sizing material mold core for To low-density sizing material mold core, Guan Bi mould carries out the injection of low-density sizing material and (is mixed with foaming in sizing material in advance according to the technological requirements Agent), temperature-pressure is molded, the decomposition of its foaming agent is made to release gas, adjusting die cylinder back pressure, (die cylinder switches to floating Position), foaming agent decomposes the inflation for releasing gas associating die venting and inflation mechanism, it is sufficient to overcome and be surrounded to be formed by rubber Cell pressure makes rubber swelling form spongy state, then carries out pressure maintaining, heat preservation, protects the time, reaches cures requirements, is opened, takes out Product is converted, easy to operate, high production efficiency without process；

(4) high resiliency dual density foam-in-mould rubber soles of the invention, high density sizing material and low-density gum base ingredients Formula, angry high density outer layer and low-density internal layer comply fully with the comparison requirement of dual-layer density, sole elasticity obtained and Wearability is high, and resistance to tearing is strong, can act synergistically with spring supporting, further increase sole elasticity and wearability；

(5) high resiliency dual density foam-in-mould rubber soles of the invention can complete injection, hair in a system mold Bubble, vulcanization manufacturing process can effectively solve secondary pressurization again in rubber soles production process, heat, cause energy consumption, consumption When, problem at high cost, to reduce the cost of rubber product, molding time, reduce energy consumption, and rubber product process can be eliminated Between shipping expense；It furthermore reduces reheating bring noxious gas emission, reduces reheating bring rubber The rejection rate of sole reduces reheating pressurization bring energy consumption, has achieved the effect that environmental protection and energy saving；Die venting and Hollow inflatable mechanism is integrated by inflatable and exhaust device by same piston rod, is moved back and forth by hydraulic station driving piston rod, Piston moves back pumping, piston Forward inflation, and cylinder piston and oil cylinder piston area ratio are the ratio of oil pressure and air pressure, adjusts Hydraulic station pressure, it is ensured that the blowing pressure, the speed of piston traveling speed is related with flow of aerating air in mold, adjusts high pressure oil Flow, i.e., the controllable piston speed of service, can meet flow of aerating air, and then reach wanting for the blowing pressure and purging vacuum degree It asks；

(6) high resiliency dual density foam-in-mould rubber soles of the invention, to guarantee its flexibility, the two-way injection of dual density Foam-in-mould forms-vulcanizes production system and makes full use of the responsive to axial force being plasticized in injection screw rotary course backward, is not necessarily to Extra power is applied to plasticizing injection screw, plasticizing material chamber can be realized and be gradually increased and achieve the purpose that sizing material is temporary；Mold Heater makes sizing material keep stable soft state in sulfidation, moreover, stomata seals automatically, is not necessarily to after sizing material foaming Secondary seal in turn ensures vulcanization effect；

(7) high resiliency dual density foam-in-mould rubber soles of the invention, foaming-sulphur in the two-way injection mold of dual density Change the molding and seal operation of the entire mold (including upper mold half, lower mold half and mold core one, two) of production system By once, simple, convenient quick；

(8) production technology of the invention can continue production free of discontinuities, production efficiency and high degree of automation.

Detailed description of the invention

Fig. 1 is transverse sectional view of the invention；

Fig. 2 is longitudinal sectional view of the invention；

Fig. 3 is the operation system structure schematic diagram in the present invention；

Fig. 4 is schematic diagram after pressing mold molding and the amplification of foaming vulcanization plant part in the present invention；

Fig. 5 is schematic diagram after die venting and the amplification of inflation mechanism part in the present invention.

In figure: 1, injecting machine base；2, high density sizing material injection device；3, pressing mold molding and foaming vulcanization plant；4, low Density sizing material injection device；5, pressing mold vulcanizes platform；6, sole body；7, tracheae；8, die venting and inflation mechanism；21, highly dense Spend sizing material loading hopper；22, high density sizing material injection cylinder；23, high density sizing material plasticizing injection barrel；24, high density sizing material is moulded Change heater；25, high density sizing material prestores plasticizing material chamber；26, high density sizing material feed pipe；27, high density sizing material injection nozzle control Liquefaction cylinder；28, high density sizing material injection head；29, high density sizing material injection seat Shift cylinder；31, die cylinder；32, molding is horizontal Beam；33, upper mold half；34, lower mold half；35, mold core one；36, mold core two；37, mold core conversion support；38, mould Has heater；39, mold core rotational fuel tank；41, low-density sizing material loading hopper；42, low-density sizing material injection cylinder；43, low-density Sizing material plasticizing injection barrel；44, low-density sizing material is plasticized heater；45, low-density sizing material prestores plasticizing material chamber；46, low-density Sizing material feed pipe；47, low-density sizing material injection nozzle controls oil cylinder；48, low-density sizing material injection head；49, low-density sizing material is injected Seat Shift cylinder；61, high density outer layer；62, low-density internal layer；63, spring supporting；64, connecting plate；80, cylinder connecting tube connects Head；81, cylinder；82, block heater；83, cylinder unloads stomata；84, cylinder block；85, oil pipe；86, hydraulic station；88, piston Bar；89, bracket；221, high density sizing material injection ram；231, high density sizing material is plasticized injection screw；421, high density sizing material is infused Penetrate piston；431, high density sizing material is plasticized injection screw；811, cylinder piston；812, support limit block；813, refractory seals Circle；841, oil cylinder piston.

Specific embodiment

To further appreciate that the contents of the present invention, this present invention is described in detail in conjunction with attached drawing.

Embodiment 1

The high resiliency dual density foam-in-mould rubber soles of the present embodiment, as shown in Figure 1, 2, including 61 He of high density outer layer Low-density internal layer 62, for the integral structure with mold depanning；The material of the high density outer layer 61 and low-density internal layer 62 point Not Wei high density sizing material and low-density sizing material, also uniformly bury the spring supporting for being covered with plumbness in the low-density internal layer 62 63。

The component formula of low-density sizing material and its respective parts by weight include: solution polymerized butadiene styrene rubber 40~50, natural rubber 15 ~25, fumed silica 5~10, isoprene rubber 7~12, naphthenic oil 7~11, stearic acid 0.5~1.5, zinc oxide 1~5, 120 resins 3~8, cumyl peroxide 0.1~0.3；High density gum base ingredients formula and its respective parts by weight include: compound Rubber 35~45, reclaimed rubber 25~35, natural rubber 2~5, butadiene rubber 4~8, resin 2~5, carbon black 7~12, naphthenic oil 2~5, stearic acid 0.5~1, zinc oxide 1~4, complex antiager 0.3~0.8, compound accelerant 0.8~1.6, composite vulcanizing agent 0.9~2.3, microballon agent, that is, microballon 0.1~0.5, sole elasticity made from the component and wearability are high, and resistance to tearing is strong.Secondary K Glue plastics, i.e. K glue regenerated plastics, K glue, that is, butadiene-styrene polymer, select in the present embodiment clear, colorless, garden spherical or For the K glue of ellipse garden shape particle in regenerated plastics, dosage is 10% or so of compounded rubber gross weight, the size of particle in any direction on It should be 2~5mm, be not contain more than metal impurities mechanical admixture visible with other of 0.3um, apparent density is about 1.01g/ cm³, bulk density is about 0.62g/cm³, bending strength >=34Mps, thermal deformation >=70 DEG C, elongation at break >=160%, hardness >=71Shore D, 115 DEG C of -70 ∽ of glass transition temperature, impact strength >=27J/m.

The high resiliency dual density foam-in-mould rubber soles of the present embodiment, using being foamed into the two-way injection mold of dual density Type-vulcanization production system is completed the two-way injection of dual-density rubber material, foaming and sulfuration process in a mold and is made, and can effectively keep away Exempt from shoe sole article in the circulation of each process, reduces production cost.As shown in Fig. 3,4,5, it is foamed into the two-way injection mold of dual density Type-vulcanization production system includes the pressing mold vulcanization platform 5 and its symmetrically arranged two injections machine base 1 in the left and right sides, further include Pressing mold vulcanizes the die venting and inflation mechanism 8 of side before or after platform 5；Be fixed on pressing mold vulcanization platform 5 pressing mold molding and Foam vulcanization plant 3；It is respectively fixed with sizing material injection device on 2 injections machine base 1,2 sizing material injection devices are opposite Setting, respectively high density sizing material injection device 2 and low-density sizing material injection device 4；The pressing mold molding and foaming vulcanization dress Setting 3 includes two mold cores that shape is identical, specification is different, the high density sizing material injection device 2 and low-density sizing material note Two kinds of different plasticized rubber material of density are corresponded to different mold cores respectively and are successively injected into pressing mold molding and hair by injection device 4 In the mold for steeping vulcanization plant 3, pressing mold is formed and is foamed before injection device 2 is injected by the die venting and inflation mechanism 8 High pressure gas, is passed through the mold of pressing mold molding and foaming vulcanization plant 3 by the air emptying in the mold of vulcanization plant 3 after injection Interior, the pressing mold molding and foaming vulcanization plant 3 carry out pressing mold foaming and vulcanization to the plasticized rubber material in mold, and dual density is double Into injection mold, foaming-vulcanization production system can be integrated by injection moulding, inflatable and exhaust and foaming, vulcanization plant, keeps away Exempt from heat losses caused by each process circulation in the prior art and process circulation cost, solves traditional rubber soles production work Multiple pressurization, heating and the secondary glue of skill are pasted, energy consumption, time-consuming, at high cost one big disadvantage.

High density sizing material injection device 2 includes high density sizing material loading hopper 21, high density sizing material injection cylinder 22, high density Sizing material plasticizing injection barrel 23, high density sizing material plasticizing heater 24, high density sizing material injection nozzle control oil cylinder 27, high density glue Expect injection head 28 and high density sizing material injection seat Shift cylinder 29；The high density sizing material loading hopper 21 is plasticized with high density sizing material The beginning of injection barrel 23 communicates, the beginning insertion high density sizing material injection cylinder 22 of high density sizing material plasticizing injection barrel 23 In cylinder barrel, and tight against the injection ram in high density sizing material injection cylinder 22；It is high built in high density sizing material plasticizing injection barrel 23 Density sizing material is plasticized injection screw, and high density sizing material is plasticized the end point of injection screw, and reserved high density sizing material prestores plasticizing material Chamber 25；The high density sizing material prestores plasticizing material chamber 25 and passes through high density sizing material feed pipe 26 and high density sizing material plasticizing injection spiral shell Cylinder 23 bottoms high density sizing material injection nozzle control 27 front end of oil cylinder material chamber connection, the high density sizing material injection head 28 into Material end is connected to material chamber, and dispensing end is communicated with the mold of pressing mold vulcanization plant 3；High density sizing material injection nozzle controls 27 cylinder barrel of oil cylinder It is fixedly connected with the cylinder barrel of high density sizing material injection seat Shift cylinder 29, the piston rod of the two backwards to being arranged, infuse by high density sizing material It penetrates 29 piston rod of a Shift cylinder and the injection cylinder is both secured on injection machine base 1, high density sizing material is plasticized heater 24 circulating types are fixed on the outer wall of high density sizing material plasticizing injection barrel 23, the plasticizing of sizing material and are temporarily stored in same height before injection It is carried out in density sizing material plasticizing injection barrel 23, while plasticizing, is prestored in plasticizing material chamber 25 in high density sizing material and complete injection Preceding is temporary, avoids the transhipment of sizing material.Likewise, low-density sizing material injection device 4 includes low-density sizing material loading hopper 41, low Density sizing material injection cylinder 42, low-density sizing material plasticizing injection barrel 43, low-density sizing material are plasticized heater 44, low-density sizing material Injection nozzle controls oil cylinder 47, low-density sizing material injection head 48 and low-density sizing material injection seat Shift cylinder 49；The low-density glue Material loading hopper 41 is communicated with the beginning that low-density sizing material is plasticized injection barrel 43, the beginning of low-density sizing material plasticizing injection barrel 43 It is inserted into the cylinder barrel of low-density sizing material injection cylinder 42, and tight against the injection ram in low-density sizing material injection cylinder 42；It is low close Low-density sizing material built in spending sizing material plasticizing injection barrel 43 is plasticized injection screw, and low-density sizing material is plasticized the end of injection screw Place, reserved low-density sizing material prestore plasticizing material chamber 45；The low-density sizing material prestores plasticizing material chamber 45 and is sent by low-density sizing material The material chamber of low-density sizing material injection nozzle control 47 front end of oil cylinder of expects pipe 46 and low-density sizing material plasticizing injection 43 bottom of barrel connects Logical, the feed end of the low-density sizing material injection head 48 is connected to material chamber, and dispensing end is communicated with the mold of pressing mold vulcanization plant 3； Low-density sizing material injection nozzle control 47 cylinder barrel of oil cylinder is fixedly connected with the cylinder barrel of low-density sizing material injection seat Shift cylinder 49, the two Piston rod backwards to being arranged, 49 piston rod of low-density sizing material injection seat Shift cylinder and the injection cylinder are both secured to injector On pedestal 1, low-density sizing material plasticizing 44 circulating type of heater is fixed on the outer wall of low-density sizing material plasticizing injection barrel 43, sizing material Plasticizing and injection before be temporarily stored in same low-density sizing material plasticizing injection barrel 43 and carry out, while plasticizing, in low-density Sizing material, which prestores, is plasticized keeping in front of completing injection in material chamber 45, avoids the transhipment of sizing material.

Embodiment 2

The high resiliency dual density foam-in-mould rubber soles of the present embodiment, with embodiment 1, improvements exist basic structure In: as shown in Figure 3,4, pressing mold molding and foaming vulcanization plant 3 include die cylinder 31, upper mold half 33, lower mold half 34, mould Have inner core 1, mold core 2 36 and mold core rotational fuel tank 39；The lower mold half 34 is fixed on pressing mold vulcanization platform 5, under The surface of half mold 34 is equipped with upper mold half 33, and the upper mold half 33 is detachably connected with die cylinder 31；Institute Die cylinder 31 is stated to fix by fixed frame；The mold core 1 is identical with 2 36 shape of mold core, specification is different, and two Person's tail end is opposite, is detachably fixed with mold core conversion support 37, and the mold core conversion support 37 is T-shaped, and mold core is inserted into bottom end After rotational fuel tank 39, it is fixedly connected with the shaft of mold core rotational fuel tank 39；The 39 driven mold inner core one of mold core rotational fuel tank 35, mold core 2 36 is converted between upper mold half 33 and lower mold half 34；Upper mold half 33, lower mold half 34, in mold Core 1 and mold core 2 36 are equipped with according to the shape of sole body 6；The mold core rotational fuel tank 39 is fixed on pressing mold Vulcanize on platform 5；The pressing mold molding and foaming vulcanization plant 3 further include molding crossbeam 32, the hydraulic stem of the die cylinder 31 It is fixedly connected again with upper mold half 33 after the pilot hole of molding crossbeam 32；The molding crossbeam 32 be fixed on pressing mold molding and It foams on the fixed frame of vulcanization plant 3；The pressing mold molding and foaming vulcanization plant 3 further include die heater 38；The mould Tool heater 38 is set to the top of upper mold half 33 and/or the lower part of lower mold half 34.High density sizing material injection device 2 and low Density sizing material injection device 4 respectively includes high density sizing material injection head 28 and low-density sizing material injection head 48, the high density glue Material injection head 28 and low-density sizing material injection head 48 are arranged on the mold two sides of pressing mold molding and foaming vulcanization plant 3, when injection, And the mould cavity for the vulcanization plant 3 that forms and foam with pressing mold communicates.As shown in figure 5, the two-way injection foam-in-mould of dual density Die venting and inflation mechanism 8 in molding-vulcanization production system include bracket 89, cylinder 81, cylinder block 84 and hydraulic station 86；The bracket 89 is the annular gantry that there is through-hole in centre, and the cylinder 81 is fixed on the circular table of bracket 89, the oil Cylinder cylinder body 84 is fixed on the bottom of the circular table of bracket 89, the cylinder 81 and the built-in same work of connection respectively of cylinder block 84 The cylinder piston 811 and oil cylinder piston 841 of stopper rod 88, are formed and are foamed by tracheae 7 and pressing mold at the top of the cylinder 81 and vulcanize The mold inner-cavity of device 3 communicates；The cylinder block 84 is divided by oil cylinder piston 841 for upper cavity and lower chamber, two cavitys difference It is communicated by an oil pipe 85 with hydraulic station 86.Mold core conversion support 37 is lift, when sizing material is injected, driven mold inner core 1 It is moved down with mold core 2 36, can be the reserved injection position of injection.The outer arm circulating type of the cylinder 81 is fixed with block heater 82, the bottom side of cylinder 81 is provided with cylinder and unloads stomata 83；The diameter of the cylinder 81 is greater than cylinder block 84.

Low-density gum base ingredients formula and its respective parts by weight include: solution polymerized butadiene styrene rubber 40, natural rubber 15, gas phase two Silica 5, isoprene rubber 7, naphthenic oil 7, stearic acid 0.5, zinc oxide 1, resin 3, cumyl peroxide 0.1；High density glue The component formula of material and its respective parts by weight include: compounded rubber 35, reclaimed rubber 25, natural rubber 2, butadiene rubber 4, resin 2, carbon black 7, naphthenic oil 2, stearic acid 0.5, zinc oxide 1, complex antiager 0.3, compound accelerant 0.8, composite vulcanizing agent 0.9, Microballon agent, that is, microballon 0.1；Solution polymerized butadiene styrene rubber is SSBR2610, and natural rubber is 1201 natural rubbers, and fumed silica is N20 fumed silica, isoprene rubber are IR2200 isoprene rubber, and cumyl peroxide is the tasteless peroxidating diisopropyl of DCP Benzene；The compounded rubber is naphthenic oil, butyl rubber, butadiene rubber, natural rubber, white carbon black, the black N330 of black wood charcoal, stearic acid, oxygen Change the composition of zinc and secondary K glue plastics；The carbon black is carbon black N330；Resin is 120 resins；The compound accelerant is attached most importance to Measure 0.4 part and 0.4 part of CZ promotor of part DM-80 promotor of composition；The composite vulcanizing agent is parts by weight S-80 vulcanizing agent 0.4 part and 0.5 part of DTDM vulcanizing agent of composition；The complex antiager be 0.1 part of parts by weight RD anti-aging agent and 4020 it is anti-always The composition that 0.2 part of agent；The dosage and characteristic of secondary K glue plastics are in the present embodiment the same as embodiment 1.

The production technology of the high resiliency dual density foam-in-mould rubber soles of the present embodiment, step are as follows:

Step 1: high density stock rubber is plasticized: high density sizing material injection nozzle control oil cylinder 27 first send high density sizing material Expects pipe 26 and high density sizing material injection head 28 are closed, and are increased density stock rubber pellet by high density sizing material loading hopper 21 and are entered High density sizing material plasticizing injection barrel 23, high density sizing material is plasticized injection screw 231 and rotates, while rotation, high density sizing material Plasticizing injection screw 231 pushes against high density sizing material injection ram 221 and persistently moves back, and the sizing material after plasticizing is plasticized in high density sizing material Expect to keep in chamber 25；

Step 2: molding: mold core rotational fuel tank 39 rotates mold core conversion support 37, and mold core 1 is inserted into upper mold section At center between tool 33 and lower mold half 34, starting die cylinder 31 is moved down, and upper mold half 33 is closed up with lower mold half；

Step 3: vacuumizing: starting hydraulic station 86, high pressure oil enter 84 epicoele of cylinder block by high-pressure oil pipe, push Oil cylinder piston 841 moves down, and oil cylinder piston 841 drives cylinder piston 811 to move together, and 81 epicoele of cylinder forms vacuum, will mold Inner chamber gas drain；

Step 4: injection: high density sizing material injection head 28 is inserted into and closes by starting high density sizing material injection seat Shift cylinder 29 In upper mold half 33 and lower mold half 34 after mould, start high density sizing material injection cylinder 22, high density sizing material injection ram 221 Forward, will be in the high density stock rubber injection mold in high density sizing material pre-firing material-holding chamber 25；High density sizing material injection head 28 It closes；Start high density sizing material injection seat Shift cylinder 29, high density sizing material injection head 28 is exited into mold, is settled into after injection Type；

Step 5: low-density stock rubber is plasticized: low-density sizing material injection nozzle control oil cylinder 47 first send low-density sizing material Expects pipe 46 and low-density sizing material injection head 48 are closed, and are entered by low-density sizing material loading hopper 41 plus low-density stock rubber pellet Low-density sizing material plasticizing injection barrel 43, low-density sizing material is plasticized injection screw 431 and rotates, while rotation, low-density sizing material Plasticizing injection screw 431 pushes against low-density sizing material injection ram 421 and persistently moves back, and the sizing material after plasticizing is plasticized in low-density sizing material Expect to keep in chamber 45；

Step 6: die sinking: starting die cylinder 31 moves up, and opens the sole body for including half of high density outer layer 61 respectively 6 upper mold half 33 and lower mold half 34, starts mold core rotational fuel tank 39, and mold core conversion support 37 takes out mold core 1 Out, and by mold core 2 36 it is inserted at the center between upper mold half 33 and lower mold half 34；

Step 7: pre-buried spring: spring is embedded in the sole body 6 of half of high density outer layer 61 of lower mold half 34 It is interior；

Step 8: molding: starting die cylinder 31 moves down, and upper mold half 33 is closed up with lower mold half 34, by mold core 2 36 indwellings；

Step 9: injection: mold core conversion support 37 declines, and reserves the injection position of low-density sizing material injection head 48；Start low Density sizing material injection seat Shift cylinder 49, by the upper mold half 43 and lower mold half after the insertion molding of low-density sizing material injection head 48 In 44, start low-density sizing material injection cylinder 42, low-density sizing material injection ram 421 moves forward, and low-density sizing material pre-firing is held and is expected In low-density stock rubber injection mold in chamber 45；Low-density sizing material injection head 48 is closed；Start low-density sizing material injection seat Low-density sizing material injection head 48 is exited mold by Shift cylinder 49；

Step 10: mold core conversion support 37 rises to original position, start mold core rotational fuel tank 39, mold core conversion support 37 is by mould Have inner core 2 36 to extract out；

Step 11: molding again: starting die cylinder 31 moves down, and will include the upper mold section of half of sole body 6 respectively Tool 33 closes up again with lower mold half 34, the hollow form after removing inside sole body 6 in mold core 2 36；

Step 12: high-pressure aerated: starting hydraulic station 86, high pressure oil enter 84 cavity of resorption of cylinder block by high-pressure oil pipe, Oil cylinder piston 841 is pushed to move up, oil cylinder piston 841 drives cylinder piston 811 to move up together, and cylinder piston 811 will be on cylinder 81 The pressure high temperature hot gas of chamber squeezes into upper mold half 33 and 36 inner cavity of lower mold half by air tube；

Step 13: foaming and vulcanization: the sole body 6 of upper mold half 33 and 34 inner cavity of lower mold half is heated up and is added Pressure adjusts 31 back pressure of die cylinder, so that die cylinder 31 is switched to floating position, foaming agent reduces foaming, and makes rubber swelling shape It at spongy state, then carries out pressure maintaining, heat preservation, protect the time, reach cures requirements；

Step 14: pressure release: by internal high temperature and high pressure gas pressure release；

Step 15: die sinking: starting die cylinder 31 moves up, and opens upper mold half 33 and lower mold half 34, takes out sole Ontology 6.

Embodiment 3

The high resiliency dual density foam-in-mould rubber soles of the present embodiment, with embodiment 2, improvements exist basic structure In: as shown in Figure 1, 2, the end of spring supporting 63 is fixed with connecting plate 64, facilitates the synchronization of spring supporting 63 pre- in mold It sets and fixes, preset spring supporting 63 is carried out before the vulcanization of rubber, the bond strength of spring supporting 63 and rubber can be effectively improved, It in the embeddable spring gap of rubber, synchronous with spring can rise and fall, play the role of skeletal support, same mold production, spring Big with the bond strength of rubber, composite effect is good, and spring may be selected with low-density rubber layer elasticity unanimously, low close to reinforce The support strength for spending internal layer, slows down elastic extenuation caused by low-density internal layer frequent deformation, spring supporting 63 in vertical distribution, 5 can be distributed, is cooperated with the direction of each toe, tunable foot vertical train of thought abundant, effective health care massage is played and makees With spring supporting diameter is slightly less than low-density internal layer thickness, and sole is avoided to contact with the really up to the mark of spring.

The high resiliency dual density foam-in-mould rubber soles of the present embodiment, low-density gum base ingredients formula and its respective weight Part includes: solution polymerized butadiene styrene rubber 50, natural rubber 25, fumed silica 10, isoprene rubber 12, naphthenic oil 11, stearic acid 1.5, zinc oxide 5, resin 8, cumyl peroxide 0.3；High density gum base ingredients formula and its respective parts by weight include: compound Rubber 45, reclaimed rubber 35, natural rubber 5, butadiene rubber 8, resin 5, carbon black 12, naphthenic oil 5, stearic acid 1, zinc oxide 4 are multiple Close anti-aging agent 0.8, compound accelerant 1.6, composite vulcanizing agent 2.3, microballon agent, that is, microballon 0.5；Solution polymerized butadiene styrene rubber is SSBR2610, natural rubber are 1201 natural rubbers, and fumed silica is N20 fumed silica, and isoprene rubber is IR2200 isoprene rubber, cumyl peroxide are the tasteless cumyl peroxide of DCP；The compounded rubber is naphthenic oil, fourth The black N330 of base rubber, butadiene rubber, natural rubber, white carbon black, black wood charcoal, stearic acid, zinc oxide and secondary K glue plastics composition； The carbon black is carbon black N330；Resin is 120 resins；The compound accelerant is that 0.8 part of parts by weight DM-80 promotor and CZ promote Into 0.8 part of composition of agent；The group that the composite vulcanizing agent is 0.8 part and 1.5 parts of DTDM vulcanizing agent of parts by weight S-80 vulcanizing agent Close object；The complex antiager is the composition of 0.5 part of 0.3 part of parts by weight RD anti-aging agent and 4020 anti-aging agents；Secondary K glue plastics Dosage and characteristic in the present embodiment with embodiment 1.

The production technology of the high resiliency dual density foam-in-mould rubber soles of the present embodiment, step is the same as embodiment 2.

Embodiment 4

The high resiliency dual density foam-in-mould rubber soles of the present embodiment, with embodiment 3, improvements exist basic structure In: foaming-vulcanization production system is basic in the two-way injection mold of dual density for producing the rubber soles of dual density layer Structure is theed improvement is that with embodiment 3: the bottom of the cavity of resorption of cylinder 81 is fixed with support limit block 812, and is the cylinder It unloads stomata 83 and reserves airspace, play cylinder piston and move down position-limiting action.In the outer rim of cylinder piston 811, in cylinder 81 High-temperature resistant seal ring 813 is set between wall, improves the sealing effect of cylinder upper and lower cavity, and avoids gas leakage in sulfidation. High-temperature resistant seal ring 813 is polytetrafluoroethylene (PTFE) or viton seal ring, and service life can be improved, prevent gas under long-term work state Body leakage, and ensure that stability when leakproofness and vulcanization in turn；The both ends of tracheae 7 respectively by mold connect pipe fitting and Cylinder connection pipe fitting 80 is fixed in upper mold half 33 and cylinder 81, improves the stability and leakproofness of connection.

Low-density gum base ingredients formula and its respective parts by weight include: solution polymerized butadiene styrene rubber 45, natural rubber 20, gas phase two Silica 8, isoprene rubber 10, naphthenic oil 9, stearic acid 1.0, zinc oxide 3, resin 6, cumyl peroxide 0.2；High density glue The component formula of material and its respective parts by weight include: compounded rubber 40, reclaimed rubber 30, natural rubber 3, butadiene rubber 6, resin 3, carbon black 10, naphthenic oil 3, stearic acid 0.8, zinc oxide 3, complex antiager 0.5, compound accelerant 1.2, composite vulcanizing agent 1.6, Microballon agent, that is, microballon 0.3；Solution polymerized butadiene styrene rubber is SSBR2610, and natural rubber is 1201 natural rubbers, and fumed silica is N20 fumed silica, isoprene rubber are IR2200 isoprene rubber, and cumyl peroxide is the tasteless peroxidating diisopropyl of DCP Benzene；The compounded rubber is naphthenic oil, butyl rubber, butadiene rubber, natural rubber, white carbon black, the black N330 of black wood charcoal, stearic acid, oxygen Change the composition of zinc and secondary K glue plastics；The carbon black is carbon black N330；Resin is 120 resins；The compound accelerant is attached most importance to Measure 0.6 part and 0.6 part of CZ promotor of part DM-80 promotor of composition；The composite vulcanizing agent is parts by weight S-80 vulcanizing agent 0.8 part and 0.8 part of DTDM vulcanizing agent of composition；The complex antiager be 0.2 part of parts by weight RD anti-aging agent and 4020 it is anti-always The composition that 0.3 part of agent；The dosage and characteristic of secondary K glue plastics are in the present embodiment the same as embodiment 1.

The production technology of the high resiliency dual density foam-in-mould rubber soles of the present embodiment, step is the same as embodiment 3.

Through detecting, high resiliency dual density foam-in-mould rubber soles obtained are heat-resisting, wear-resisting, weather-proof, moreover, same die cavity Production, quality are stablized, and dynamic balancing even results are good.Testing result such as the following table 1:

Schematically the present invention and embodiments thereof are described above, description is not limiting, institute in attached drawing What is shown is also one of embodiments of the present invention, and actual structure is not limited to this.So if the common skill of this field Art personnel are enlightened by it, without departing from the spirit of the invention, are not inventively designed and the technical solution Similar frame mode and embodiment, are within the scope of protection of the invention.

Claims (10)

1. a kind of high resiliency dual density foam-in-mould rubber soles, which is characterized in that including high density outer layer (61) and low-density Internal layer (62), for the integral structure with mold depanning；The material of the high density outer layer (61) and low-density internal layer (62) point Not Wei high density sizing material and low-density sizing material, also uniformly bury the spring supporting for being covered with plumbness in the low-density internal layer (62) (63)；And foaming-vulcanization production system completes dual-density rubber material in a mold in the application two-way injection mold of dual density Two-way injection, foaming and sulfuration process are made.

2. high resiliency dual density foam-in-mould rubber soles as described in claim 1, which is characterized in that the spring supporting (63) end is fixed with connecting plate (64).

3. high resiliency dual density foam-in-mould rubber soles as claimed in claim 2, which is characterized in that the low-density sizing material Component formula and its respective parts by weight include: solution polymerized butadiene styrene rubber 40~50, natural rubber 15~25, fumed silica 5 ~10, isoprene rubber 7~12, naphthenic oil 7~11, stearic acid 0.5~1.5, zinc oxide 1~5, resin 3~8, peroxidating two is different Propyl benzene 0.1~0.3；

The high density gum base ingredients formula and its respective parts by weight include: compounded rubber 35~45, reclaimed rubber 25~35, day Right rubber 2~5, butadiene rubber 4~8, resin 2~5, carbon black 7~12, naphthenic oil 2~5, stearic acid 0.5~1, zinc oxide 1~ 4, complex antiager 0.3~0.8, compound accelerant 0.8~1.6, composite vulcanizing agent 0.9~2.3, microballon agent 0.1~0.5.

4. high resiliency dual density foam-in-mould rubber soles as claimed in claim 2, which is characterized in that the dual density is two-way Foaming-vulcanization production system includes symmetrically arranged two injections of pressing mold vulcanization platform (5) and its left and right sides in injection mold Machine base (1) further includes the die venting and inflation mechanism (8) of side before or after pressing mold vulcanizes platform (5)；

Pressing mold molding and foaming vulcanization plant (3) are fixed on pressing mold vulcanization platform (5)；On 2 injection machine bases (1) Be respectively fixed with sizing material injection device, 2 sizing material injection devices are oppositely arranged, respectively high density sizing material injection device (2) and Low-density sizing material injection device (4)；The pressing mold molding and foaming vulcanization plant (3) include that two shapes are identical, specification is different Mold core, the high density sizing material injection device (2) and low-density sizing material injection device (4) respectively by density it is different two Kind plasticized rubber material corresponds to different mold cores and is successively injected into the mold of pressing mold molding and foaming vulcanization plant (3), institute Stating die venting and inflation mechanism (8) will be in the mold of pressing mold molding and foaming vulcanization plant (3) before injection device (2) injection Air emptying, high pressure gas is passed through in the mold of pressing mold molding and foaming vulcanization plant (3) after injection, pressing mold molding And foaming vulcanization plant (3) carries out pressing mold foaming and vulcanization to the plasticized rubber material in mold.

5. high resiliency dual density foam-in-mould rubber soles as claimed in claim 4, which is characterized in that 2 sizing materials note Injection device includes loading hopper, injection cylinder, plasticizing injection barrel, plasticizing heater, injection nozzle control oil cylinder, injection head and note Penetrate a Shift cylinder；The loading hopper is communicated with the beginning of plasticizing injection barrel, the beginning insertion injection oil of plasticizing injection barrel In the cylinder barrel of cylinder, and tight against the injection ram in injection cylinder；The plasticizing injection barrel is built-in to be plasticized injection screw, plasticizing note The end point of screw rod is penetrated, plasticizing material chamber is prestored；The plasticizing material chamber that prestores passes through feed pipe and plasticizing injection barrel bottom Injection nozzle control oil cylinder front end the connection of material chamber, the feed end of the injection head is connected to material chamber, dispensing end and the pressing mold The mold of molding and foaming vulcanization plant (3) communicates；The cylinder barrel of injection nozzle the control cylinder tube and injection seat Shift cylinder It is fixedly connected, backwards to being arranged, the injection seat Shift cylinder piston rod is both secured to the piston rod of the two with the injection cylinder It injects on machine base (1), the plasticizing heater circulating type is fixed on the outer wall of plasticizing injection barrel.

6. high resiliency dual density foam-in-mould rubber soles as claimed in claim 5, which is characterized in that pressing mold molding and Foaming vulcanization plant (3) includes die cylinder (31), upper mold half (33), lower mold half (34), mold core one (35), mold Inner core two (36) and mold core rotational fuel tank (39)；The lower mold half (34) is fixed in pressing mold vulcanization platform (5), lower mold half (34) it is equipped with right above upper mold half (33), the upper mold half (33) is detachably connected with die cylinder (31)； The die cylinder (31) is fixed by fixed frame；The mold core one (35) is identical with mold core two (36) shape, advises Lattice are different, and the two tail end is opposite, is detachably fixed with mold core conversion support (37), and the mold core conversion support (37) is T-shaped, After mold core rotational fuel tank (39) are inserted into bottom end, it is fixedly connected with the shaft of mold core rotational fuel tank (39)；The mold core rotational fuel tank (39) driven mold inner core one (35), mold core two (36) are converted between upper mold half (33) and lower mold half (34)；On Half mold (33), lower mold half (34), mold core one (35) and mold core two (36) are matched according to the shape of sole body (6) Close setting；The mold core rotational fuel tank (39) is fixed in pressing mold vulcanization platform (5)；

The pressing mold molding and foaming vulcanization plant (3) further include molding crossbeam (32), the hydraulic stem of the die cylinder (31) It is fixedly connected again with upper mold half (33) after the pilot hole of molding crossbeam (32)；The molding crossbeam (32) is fixed on pressing mold On the fixed frame of molding and foaming vulcanization plant (3)；

The pressing mold molding and foaming vulcanization plant (3) further include die heater (38)；Die heater (38) setting In the top of upper mold half (33) and/or the lower part of lower mold half (34).

7. a kind of high resiliency dual density foam-in-mould rubber soles as claimed in claim 6, which is characterized in that the high density Sizing material injection device (2) and low-density sizing material injection device (4) respectively include high density sizing material injection head (28) and low-density glue Expect injection head (48), the high density sizing material injection head (28) and low-density sizing material injection head (48) are arranged on pressing mold molding and hair The mold two sides for steeping vulcanization plant (3), when injection, and the mould cavity of vulcanization plant (3) of forming and foam with pressing mold communicates.

8. a kind of high resiliency dual density foam-in-mould rubber soles as claimed in claim 6, which is characterized in that the dual density Die venting and inflation mechanism (8) in two-way injection mold in foaming-vulcanization production system include bracket (89), cylinder (81), cylinder block (84) and hydraulic station (86)；The bracket (89) is the annular gantry that there is through-hole in centre, the cylinder (81) It is fixed on the circular table of bracket (89), the cylinder block (84) is fixed on the bottom of the circular table of bracket (89), institute State cylinder (81) and cylinder block (84) the built-in cylinder piston (811) and oil cylinder piston for connecting same piston rod (88) respectively (841), it is formed by tracheae (7) with pressing mold at the top of the cylinder (81) and the mold inner-cavity of foaming vulcanization plant (3) communicates；Institute It states cylinder block (84) and upper cavity and lower chamber is divided by oil cylinder piston (841), two cavitys pass through an oil pipe (85) and liquid respectively Pressure station (86) communicates.

9. a kind of high resiliency dual density foam-in-mould rubber soles as claimed in claim 8, which is characterized in that the mold core turns Changing bracket (37) is lift, and when sizing material is injected, driven mold inner core one (35) and mold core two (36) are moved down；The cylinder (81) outer arm circulating type is fixed with block heater (82), and the bottom side of cylinder (81) is provided with cylinder and unloads stomata (83)；It is described The diameter of cylinder (81) is greater than cylinder block (84).

10. a kind of production technology of high resiliency dual density foam-in-mould rubber soles as claimed in claim 9, which is characterized in that Step are as follows:

Step 1: high density stock rubber is plasticized: high density sizing material injection nozzle controls oil cylinder (27) first by high density sizing material feeding (26) and high density sizing material injection head (28) closing are managed, density stock rubber grain is increased by high density sizing material loading hopper (21) Expect to be plasticized injection barrel (23) into high density sizing material, high density sizing material is plasticized injection screw (231) rotation, high while rotation Density sizing material plasticizing injection screw (231) pushes against high density sizing material injection ram (221) and persistently moves back, and the sizing material after plasticizing is in height It is kept in density sizing material plasticizing material chamber (25)；

Step 2: molding: mold core rotational fuel tank (39) rotates mold core conversion support (37), and mold core one (35) is inserted into upper half At center between mold (33) and lower mold half (34), starting die cylinder (31) is moved down, upper mold half (33) and female die Tool closes up；

Step 3: vacuumizing: starting hydraulic station (86), high pressure oil enter cylinder block (84) epicoele by high-pressure oil pipe, push Oil cylinder piston (841) moves down, and oil cylinder piston (841) drives cylinder piston (811) to move together, and cylinder (81) epicoele is formed very Sky drains the inner chamber gas of molding；

Step 4: injection: high density sizing material injection head (28) is inserted into and closes by starting high density sizing material injection seat Shift cylinder (29) In upper mold half (33) and lower mold half (34) after mould, start high density sizing material injection cylinder (22), the injection of high density sizing material Piston (221) Forward, will be in the high density stock rubber injection mold in high density sizing material pre-firing material-holding chamber (25)；High density glue Expect that injection head (28) are closed；Start high density sizing material injection seat Shift cylinder (29), high density sizing material injection head (28) is exited Mold stands molding after injection；

Step 5: low-density stock rubber is plasticized: low-density sizing material injection nozzle controls oil cylinder (47) first by low-density sizing material feeding (46) and low-density sizing material injection head (48) closing are managed, low-density sizing material loading hopper (41) plus low-density stock rubber grain are passed through Expect to be plasticized injection barrel (43) into low-density sizing material, low-density sizing material is plasticized injection screw (431) rotation, low while rotation Density sizing material plasticizing injection screw (431) pushes against low-density sizing material injection ram (421) and persistently moves back, and the sizing material after plasticizing is low It is kept in density sizing material plasticizing material chamber (45)；

Step 6: die sinking: starting die cylinder (31) moves up, and opens the sole body for including half of high density outer layer (61) respectively (6) upper mold half (33) and lower mold half (34), start mold core rotational fuel tank (39), mold core conversion support (37) will be in mold Core one (35) extraction, and will be at the center between mold core two (36) insertion upper mold half (33) and lower mold half (34)；

Step 7: pre-buried spring: spring is embedded in the sole body (6) of half of high density outer layer (61) of lower mold half (34) It is interior；

Step 8: molding: starting die cylinder (31) moves down, and upper mold half (33) is closed up with lower mold half (34), will be in mold Core two (36) indwelling；

Step 9: injection: mold core conversion support (37) decline reserves the injection position of low-density sizing material injection head (48)；Start low Density sizing material injection seat Shift cylinder (49), by the upper mold half (43) after low-density sizing material injection head (48) insertion molding under In half mold (44), start low-density sizing material injection cylinder (42), low-density sizing material injection ram (421) Forward, by low-density In low-density stock rubber injection mold in sizing material pre-firing material-holding chamber (45)；Low-density sizing material injection head (48) is closed；Starting Low-density sizing material injection head (48) is exited mold by low-density sizing material injection seat Shift cylinder (49)；

Step 10: mold core conversion support (37) rises to original position, start mold core rotational fuel tank (39), mold core conversion support (37) will Mold core two (36) extraction；

Step 11: molding again: starting die cylinder (31) moves down, and will include the upper mold section of half of sole body (6) respectively Tool (33) closes up again with lower mold half (34), the hollow form after removing inside sole body (6) in mold core two (36)；

Step 12: high-pressure aerated: starting hydraulic station (86), high pressure oil enter cylinder block (84) cavity of resorption by high-pressure oil pipe, Oil cylinder piston (841) are pushed to move up, oil cylinder piston (841) drives cylinder piston (811) to move up together, and cylinder piston (811) will The pressure high temperature hot gas of cylinder (81) epicoele squeezes into upper mold half (33) and lower mold half (36) inner cavity by air tube；

Step 13: foaming and vulcanization: the sole body (6) of upper mold half (33) and lower mold half (34) inner cavity is heated up and is added Pressure adjusts die cylinder (31) back pressure, so that die cylinder (31) is switched to floating position, foaming agent reduces foaming, and keeps rubber swollen Bulging is at spongy state, then carries out pressure maintaining, heat preservation, protects the time, reaches cures requirements；

Step 14: pressure release: by internal high temperature and high pressure gas pressure release；

Step 15: die sinking: starting die cylinder (31) moves up, and opens upper mold half (33) and lower mold half (34), takes out shoes Copy for the record or for reproduction body (6).