CN109049478A - A kind of disposable die press technology for forming of rubber product polychrome dual density - Google Patents
A kind of disposable die press technology for forming of rubber product polychrome dual density Download PDFInfo
- Publication number
- CN109049478A CN109049478A CN201810957808.7A CN201810957808A CN109049478A CN 109049478 A CN109049478 A CN 109049478A CN 201810957808 A CN201810957808 A CN 201810957808A CN 109049478 A CN109049478 A CN 109049478A
- Authority
- CN
- China
- Prior art keywords
- density
- rubber
- polychrome
- rubber product
- sizing material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/04—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/3415—Heating or cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/58—Moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/60—Measuring, controlling or regulating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of disposable die press technology for forming of rubber product polychrome dual density, belong to rubber product technology field.The disposable die press technology for forming of rubber product polychrome dual density of the invention, the addition (can add manually) of polychrome dual-density rubber material is completed in same die cavity, it is hollow, foaming and vulcanization process, the die cavity includes upper mold half, the cavity that lower mold half and mold core and three are formed, mold core is that the hollow of die cavity lays the foundation, has the condition for being filled with and vulcanizing required high temperature and high pressure gas and foaming and intumescing reduction density after hollow, high pressure needed for generating vulcanization while foaming and intumescing, in turn by hollow and foaming, vulcanization plant is integrated, avoid heat losses caused by each process circulation in the prior art and process circulation cost, solves the multiple pressurization of traditional rubber products production technology, heating, secondary glue is viscous, energy consumption, it is time-consuming, the big disadvantage of at high cost one.
Description
Technical field
The invention belongs to rubber product technology fields, specifically, being related to a kind of rubber product polychrome dual density one
Secondary property die press technology for forming.
Background technique
Existing polychrome dual-density rubber product, for example (bottom is for polychrome dual-density sole that Adidas, Nike are produced
High-density wear-resistant, anti-skidding, upper layer is low-density, and elasticity is good, light), it is first to suppress the sheet stock of two kinds of density in production process,
It is manually or mechanically sticked together after cutting molding with glue special, wherein low-density sheet stock is usually the outer foaming of mould
The vulcanization of subsequent processing is carried out afterwards.Its defect is that process is more, and glue adhesion is difficult to ensure the stabilization of quality, and disqualification rate is high, and
And it is also easy to pollution environment, recruitment is more, higher cost.
Existing rubber polychrome dual density product also has using double injection moulding process, and injection moulding is (using double in two steps
Injection head injector), by the movement of injection head and the variation of mold core, it is directed at product mold, is first injection moulded high (low) density
Gum material, then low (height) density rubber material is injected, obtain polychrome dual-density rubber product.Using double injection head injector,
In the mobile alignment procedures of injection head, injection gate is easy to blocking or cast gate is unsmooth, generates waste product.
The size of rubber density itself, it is related with its (foaming) containing gas bubble, by gas foaming, obtain different densities
Rubber material using two sets of injection mechanisms, not only increase equipment cost, but also increase to reach polychrome dual-density rubber product
Occupation area of equipment.
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 product 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.
Summary of the invention
1. technical problems to be solved by the inivention
When producing polychrome dual-density rubber product in the prior art to overcome, the double-deck adhesion has pollution, recruitment more, unqualified
Rate is high, injects and vulcanize the problems such as separately being consumed energy, is time-consuming, at high cost, and the present invention provides a kind of rubber product polychrome double density
Spend disposable die press technology for forming.The present invention is integrated by the sizing material addition of two kinds of density, hollow and vulcanization plant, together
Molding, foaming are completed in one die cavity and is vulcanized, and in sulfidation, reduce cost, the molding time of rubber product, it is double-deck
Directly vulcanization is integral, is not necessarily to adhesion, and reduce energy consumption, moreover it is possible to eliminate shipping expense between rubber product process.
2. technical solution
To solve the above problems, the present invention adopts the following technical scheme:
A kind of disposable die press technology for forming of rubber product polychrome dual density completes polychrome dual density glue in same die cavity
The addition (such as manually addition charging) of material, hollow, foaming and vulcanization process, the die cavity include upper mold half, female die
The cavity that tool and mold core and three are formed, mold core are that the hollow of die cavity lays the foundation, and have after hollow and are filled with needed for vulcanization
The high temperature and high pressure gas and foaming and intumescing wanted reduce the condition of density, high pressure needed for foaming and intumescing while generates vulcanization,
And then addition, hollow and foaming, vulcanization plant is integrated, avoid heat stream caused by each process circulation in the prior art
Process of becoming estranged circulation cost solves multiple pressurization, the heating of traditional rubber products production technology, and secondary glue is pasted, energy consumption,
The big disadvantage of time-consuming, at high cost one.
Further embodiment, specific steps are as follows:
Step 1: polychrome dual density feeds: sizing material is added lower film die cavity manually, closes mold core by film and mold core in opening,
Upper film die cavity is added in sizing material manually again, stands molding after closing film；The sizing material is respectively the height of one or more of colors
The low-density sizing material of density sizing material and one or more of colors, wherein low-density sizing material is that high density sizing material adds foaming agent or swollen
Swollen dose；Foaming agent is that chemical foaming agent can be H series, AC series etc.；Swelling agent be physical blowing agent can be expandable microspheres,
Supercritical CO2Deng；
Step 2: die sinking: opening die cavity, upper mold half, the lower mold half for including half of rubber product respectively are separated, take out
Mold core；
Step 3: secondary mould closing: by the upper mold half for including half of rubber product respectively, lower mold half is secondary closes up, rubber
Hollow form after being removed inside glue product in mold core；
Step 4: gas injection: being filled with high temperature and high pressure gas in the hollow inside of rubber product, be allowed to have conditions of vulcanization；
Step 5: vulcanization and foaming vulcanization: the rubber product in die cavity is vulcanized, low-density sizing material is in low-density glue
It is to carry out being vulcanized while die cavity is filled up in foaming in upper cavity under normal circumstances in upper cavity or lower mode cavity where expecting,
In foaming process, since gap is reduced, air pressure is increased accordingly in die cavity, and high density sizing material is in the other half die cavity, ordinary circumstance
Under be lower mode cavity while vulcanizing；
Step 6: it pressure release: by the high temperature and high pressure gas pressure release of hollow inside, avoids steep that wall from rupturing, influences product quality；
Step 7: twice-die-opening: opening membrane cavity, takes out the one-time formed rubber product of polychrome dual density.
Further embodiment is vacuumized after step 1 molding, exhausts the air in die cavity, and sizing material heating vulcanization is prevented
Shi Fasheng oxidation；After vacuumizing, 130~180 DEG C are heated up to die cavity, can be increased by the outer wall of upper mold half, lower mold half
Heater achieves the goal, and guarantees rubber product cures requirements；5~50s is stood, according to the requirement of rubber product specification or shape
It is selected accordingly.
Further scheme combines mode using air-cooled and/or water cooling, by mold core temperature after step 3 takes out mold core
Degree control is at 60~100 DEG C；The pressure of step 5 high temperature and high pressure gas is 10~50kg, and temperature is 130~180 DEG C, according to rubber
The requirement of glue product specifications or shape is selected accordingly；The time of step 6 vulcanization and foaming vulcanization is 100~1000s,
It is selected accordingly according to the requirement of rubber product specification or shape.
Further scheme, the shape of upper mold half, mold core and lower mold half are adapted with the shape of rubber product, than
Such as if it is sole, then three is adapted with the shape of sole.
Further scheme, high density sizing material are reclaimed rubber or the rubber composition plasticizing of crosslinkable scrap rubber
Material, waste are utilized again, and production cost substantially reduces.
3. beneficial effect
Compared with prior art, the present invention has the following obvious advantages:
(1) the disposable die press technology for forming of rubber product polychrome dual density of the invention can be completed more in a system
Color dual density feeds manually, is hollow, foaming and the process of vulcanization, can effectively solve in rubber product production process and repeatedly adds
Pressure, heating, secondary glue are pasted, and energy consumption, time-consuming, problem at high cost are caused, and avoid product in the circulation of each process, also to reduce
The cost of rubber product molding time, reduces energy consumption, and can eliminate shipping expense between rubber product process；Moreover, also
Reduce heating for multiple times bring noxious gas emission, reduces the rejection rate of heating for multiple times bring rubber product, reduce
Heating for multiple times pressurization bring energy consumption, has achieved the effect that environmental protection and energy saving；
(2) the disposable die press technology for forming of rubber product polychrome dual density of the invention, can be according to the difference of rubber product
Technique requirement, technological parameter needed for adjusting: the intracavitary manual feeding quantity of upper and lower mould, die cavity heating temperature, middle air source pressure, gas source
Temperature, vulcanization time reach product optimum efficiency；
(3) the disposable die press technology for forming of rubber product polychrome dual density of the invention, rubber product obtained are heat-resisting, resistance to
It grinds, is weather-proof, moreover, same die cavity produces, quality is stablized, and dynamic balancing even results are good；
(4) production technology of the invention can continue production free of discontinuities, production efficiency and high degree of automation.
Specific embodiment
To further appreciate that the contents of the present invention, this present invention is described in detail in conjunction with the embodiments.
Embodiment 1
It is double to complete polychrome in same die cavity for the disposable die press technology for forming of rubber product polychrome dual density of the present embodiment
The addition (can manually add) of density sizing material, hollow, foaming and vulcanization process, the die cavity include upper mold half, lower half
The cavity that mold and mold core and three are formed, mold core are that the hollow of die cavity lays the foundation, and have after hollow and are filled with vulcanization institute
The high temperature and high pressure gas and foaming and intumescing that need reduce the condition of density, height needed for foaming and intumescing while generates vulcanization
Pressure, so will feed manually, it is hollow and foaming, vulcanization plant it is integrated, avoid in the prior art each process circulation cause
Heat losses and process circulate cost, solve traditional rubber products production technology it is multiple pressurization, heating, secondary glue glue
Patch, energy consumption, time-consuming, at high cost one big disadvantage.
Embodiment 2
The disposable die press technology for forming of rubber product polychrome dual density of the present embodiment, specific steps are as follows:
Step 1: polychrome dual density feeds: sizing material is manually added lower film die cavity, closed by film and mold core in opening
Mold core, then upper film die cavity manually is added in sizing material, vacuumizes after closing film, it then can be heated up to 130 to die cavity~
180 DEG C, heater can be increased by the outer wall of upper mold half, lower mold half to achieve the goal, guarantee rubber product cures requirements,
5~50s molding is stood, is selected accordingly according to the requirement of rubber product specification or shape；The sizing material is respectively one kind
Or the low-density sizing material of varicolored high density sizing material and one or more of colors, wherein low-density sizing material is high density sizing material
Add foaming agent or swelling agent；Foaming agent is that chemical foaming agent can be H series, AC series etc., and additive amount is 1.0~5.0%；
Swelling agent is that physical blowing agent can be expandable microspheres, supercritical CO2It is 1.0~5.0% Deng, additive amount；
Step 2: die sinking: opening die cavity, upper mold half, the lower mold half for including half of rubber product respectively are separated, take out
After mold core, the air-cooled mode combined with water cooling can be used, core temperature is controlled at 60~100 DEG C, core temperature mistake is prevented
Height causes the hollow inner rubber of the rubber product directly contacted with mold core to vulcanize in advance, or even incipient scorch occurs；
Step 3: secondary mould closing: by the upper mold half for including half of rubber product respectively, lower mold half is secondary closes up, rubber
Hollow form after being removed inside glue product in mold core；
Step 4: gas injection: it is filled with high temperature and high pressure gas in the hollow inside of rubber product, is allowed to have conditions of vulcanization, it is high
The pressure of warm high pressure gas is 10~50kg, and temperature is 130~180 DEG C, is carried out according to the requirement of rubber product specification or shape
Corresponding selection；
Step 5: vulcanization and foaming vulcanization: the rubber product in die cavity is vulcanized, low-density sizing material is in low-density glue
It is to carry out being vulcanized while die cavity is filled up in foaming in upper cavity under normal circumstances in upper cavity or lower mode cavity where expecting,
In foaming process, since gap is reduced, air pressure is increased accordingly in die cavity, and high density sizing material is in the other half die cavity, ordinary circumstance
Under be lower mode cavity while vulcanizing；Time is 100~1000s, is selected accordingly according to the requirement of rubber product specification or shape
It selects；
Step 6: it pressure release: by the high temperature and high pressure gas pressure release of hollow inside, avoids steep that wall from rupturing, influences product quality；
Step 7: twice-die-opening: opening membrane cavity, takes out the one-time formed rubber product of polychrome dual density.
Embodiment 3
The disposable die press technology for forming of glue product polychrome dual density of the present embodiment, the children's footwear sole of 34 yards of production, upper half
The shape of mold, lower mold half and mold core is consistent with the shape of children's footwear sole, specific steps are as follows:
Preamble preparation process, rubber plasticizing: high density sizing material is to mould the reclaimed rubber particle of crosslinkable scrap rubber
Change plasticizing in injection screw, the flow-like sizing material after plasticizing is intracavitary temporary in plasticizing material, and plasticization temperature is 60 DEG C, it is therefore an objective to make glue
Expect fluidisation, facilitates subsequent injection to project, and keep the temperature, it can be by being kept the temperature in the ring wall internal heater of plasticizing material chamber；
Low-density sizing material is to be plasticized one or more color mixing rubber composition rubber grains in another plasticizing injection screw,
Flow-like sizing material after plasticizing adds H series foaming agent, and additive amount is 1.0% mixing of low-density sizing material weight, in another modeling
Material is intracavitary temporary, and plasticization temperature is 60 DEG C, it is therefore an objective to make gum fluid, facilitate subsequent injection to project, and keep the temperature, can lead to
The ring wall internal heater crossed in plasticizing material chamber is kept the temperature；
Step 1: polychrome dual density feeds: upper mold half, lower mold half can form die cavity, mold cavity shapes and 34 after closing up
The children's footwear sole of code is consistent, and die cavity is divided into upper cavity and lower mode cavity by boundary of mold core；Die cavity is opened, manually by high density glue
Lower film die cavity is added in material, closes mold core, then upper film die cavity manually is added in low-density sizing material, vacuumizes after closing film,
Then it can be heated up to 130 DEG C to die cavity, can be achieved the goal by the outer wall of upper mold half, lower mold half increase heater,
Guarantee rubber product cures requirements, stand 5s molding,
Step 2: die sinking: opening die cavity, upper mold half, the lower mold half for including half of rubber product respectively are separated, take out
After mold core, the air-cooled mode combined with water cooling can be used, core temperature is controlled at 60 DEG C, prevents core temperature is excessively high from causing
The hollow inner rubber of the rubber product directly contacted with mold core vulcanizes in advance, or even incipient scorch occurs；
Step 3: secondary mould closing: by the upper mold half for including half of rubber product respectively, lower mold half is secondary closes up, rubber
Hollow form after being removed inside glue product in mold core；
Step 4: gas injection: it is filled with high temperature and high pressure gas in the hollow inside of rubber product, is allowed to have conditions of vulcanization, it is high
The pressure of warm high pressure gas is 50kg, and temperature is 130 DEG C；
Step 5: vulcanization and foaming vulcanization: the rubber product in die cavity is vulcanized, low-density sizing material is in low-density glue
It carries out being vulcanized while die cavity is filled up in foaming in upper cavity where expecting, in foaming process, since gap is reduced, in die cavity
Air pressure increases accordingly, and high density sizing material vulcanizes simultaneously in lower mode cavity, time 100s；
Step 6: it pressure release: by the high temperature and high pressure gas pressure release of hollow inside to normal pressure, avoids steep that wall from rupturing, influences product
Quality；
Step 7: twice-die-opening: opening membrane cavity, takes out 34 yards of the children's footwear shoes that polychrome dual density is disposably pressed and molded
Bottom.
Through detecting, 34 yards obtained of children's footwear polychrome dual-density sole is heat-resisting, wear-resisting, weather-proof, moreover, same die cavity is raw
It produces, is not necessarily to additional glue adhesion, quality is stablized, and dynamic balancing even results are good.
Embodiment 4
The polychrome dual density of the disposable die press technology for forming of rubber product polychrome dual density of the present embodiment, 32 yards of production is virgin
Sole, the shape of upper mold half, lower mold half and mold core is consistent with the shape at 32 yards of polychrome dual density children's footwear bottom, specific to walk
Suddenly are as follows:
Preamble preparation process, rubber plasticizing: high density sizing material is to mould the reclaimed rubber particle of crosslinkable scrap rubber
Change plasticizing in injection screw, the flow-like sizing material after plasticizing is intracavitary temporary in plasticizing material, and plasticization temperature is 70 DEG C, it is therefore an objective to make glue
Expect fluidisation, facilitates subsequent injection to project, and keep the temperature, it can be by being kept the temperature in the ring wall internal heater of plasticizing material chamber；
Low-density sizing material is to mould the mixing rubber composition rubber grain of one or more colors in another plasticizing injection screw
Change, the flow-like sizing material after plasticizing adds AC series foaming agent, and additive amount is 2.0% mixing of low-density sizing material weight, another
One plasticizing material is intracavitary temporary, and plasticization temperature is 70 DEG C, it is therefore an objective to and make gum fluid, facilitates subsequent injection to project, and keep the temperature,
It can be by being kept the temperature in the ring wall internal heater of plasticizing material chamber；
Step 1: polychrome dual density feeds: upper mold half, lower mold half can form die cavity, mold cavity shapes and 32 after closing up
The children's footwear sole of code is consistent, and die cavity is divided into upper cavity and lower mode cavity by boundary of mold core；Die cavity is opened, manually by high density glue
Lower film die cavity is added in material, closes mold core, then upper film die cavity manually is added in low-density sizing material, vacuumizes after closing film,
Then it can be heated up to 150 DEG C to die cavity, can be achieved the goal by the outer wall of upper mold half, lower mold half increase heater,
Guarantee rubber product cures requirements, stand 10s molding,
Step 2: die sinking: opening die cavity, upper mold half, the lower mold half for including half of rubber product respectively are separated, take out
After mold core, the air-cooled mode combined with water cooling can be used, core temperature is controlled at 70 DEG C, prevents core temperature is excessively high from causing
The hollow inner rubber of the rubber product directly contacted with mold core vulcanizes in advance, or even incipient scorch occurs；
Step 3: secondary mould closing: by the upper mold half for including half of rubber product respectively, lower mold half is secondary closes up, rubber
Hollow form after being removed inside glue product in mold core；
Step 4: gas injection: it is filled with high temperature and high pressure gas in the hollow inside of rubber product, is allowed to have conditions of vulcanization, it is high
The pressure of warm high pressure gas is 12kg, and temperature is 150 DEG C；
Step 5: vulcanization and foaming vulcanization: the rubber product in die cavity is vulcanized, low-density sizing material is in low-density glue
It carries out being vulcanized while die cavity is filled up in foaming in upper cavity where expecting, in foaming process, since gap is reduced, in die cavity
Air pressure increases accordingly, and high density sizing material vulcanizes simultaneously in lower mode cavity, time 200s；
Step 6: it pressure release: by the high temperature and high pressure gas pressure release of hollow inside to normal pressure, avoids steep that wall from rupturing, influences product
Quality；
Step 7: twice-die-opening: opening membrane cavity, takes out one-time formed 32 yards of polychrome dual density of children's footwear sole.
Through detecting, 32 yards obtained of polychrome dual-density sole is heat-resisting, wear-resisting, weather-proof, moreover, same die cavity produces, matter
Amount is stablized, and dynamic balancing even results are good.
Embodiment 5
The disposable die press technology for forming of rubber product polychrome dual density of the present embodiment, the polychrome dual-density shoe of 40 yards of production
Bottom, the shape of upper mold half, lower mold half and mold core is consistent with the shape of 40 yards of polychrome dual-density sole, specific steps
Are as follows:
Preamble preparation process, rubber plasticizing: crosslinkable mixing rubber composition is plasticized in plasticizing apparatus, after plasticizing
Flow-like sizing material in plasticizing charging barrel keep in, plasticization temperature be 75 DEG C, it is therefore an objective to make gum fluid, facilitate subsequent add
Add, can be kept the temperature, is kept the temperature by the ring wall internal heater in plasticizing charging barrel；Fluidisation sizing material is added after plasticizing
White, yellow rubber color forms polychrome sizing material, is divided into two parts, and portion is polychrome high density sizing material, and portion is polychrome low-density
Sizing material, low-density sizing material are that polychrome high density sizing material addition expandable microspheres mix, and additive amount 3.0%, the two is temporarily stored into respectively
In respective plasticizing charging barrel；
Step 1: polychrome dual density feeds: upper mold half, lower mold half can form die cavity, mold cavity shapes and 40 after closing up
The shoes sole of code is consistent, and die cavity is divided into upper cavity and lower mode cavity by boundary of mold core；Die cavity is opened, manually by high density sizing material
Lower film die cavity is added, closes mold core, then upper film die cavity manually is added in low-density sizing material, is vacuumized after closing film, so
After can be heated up to 160 DEG C to die cavity, heater can be increased by the outer wall of upper mold half, lower mold half and achieved the goal, protected
Rubber product cures requirements are demonstrate,proved, 20s molding is stood,
Step 2: die sinking: opening die cavity, upper mold half, the lower mold half for including half of rubber product respectively are separated, take out
After mold core, the air-cooled mode combined with water cooling can be used, core temperature is controlled at 75 DEG C, prevents core temperature is excessively high from causing
The hollow inner rubber of the rubber product directly contacted with mold core vulcanizes in advance, or even incipient scorch occurs；
Step 3: secondary mould closing: by the upper mold half for including half of rubber product respectively, lower mold half is secondary closes up, rubber
Hollow form after being removed inside glue product in mold core；
Step 4: gas injection: it is filled with high temperature and high pressure gas in the hollow inside of rubber product, is allowed to have conditions of vulcanization, it is high
The pressure of warm high pressure gas is 20kg, and temperature is 160 DEG C；
Step 5: vulcanization and foaming vulcanization: the rubber product in die cavity is vulcanized, low-density sizing material is in low-density glue
It carries out being vulcanized while die cavity is filled up in foaming in upper cavity where expecting, in foaming process, since gap is reduced, in die cavity
Air pressure increases accordingly, and high density sizing material vulcanizes simultaneously in lower mode cavity, time 400s；
Step 6: it pressure release: by the high temperature and high pressure gas pressure release of hollow inside to normal pressure, avoids steep that wall from rupturing, influences product
Quality；
Step 7: twice-die-opening: opening membrane cavity, takes out one-time formed 40 yards of the sole of polychrome dual density.
Through detecting, 40 yards obtained of polychrome dual-density sole is heat-resisting, wear-resisting, weather-proof, moreover, same die cavity produces, matter
Amount is stablized, and dynamic balancing even results are good.
Embodiment 6
The disposable die press technology for forming of rubber product polychrome dual density of the present embodiment, the polychrome dual-density shoe of 42 yards of production
Bottom, the shape of upper mold half, lower mold half and mold core is consistent with the shape of 42 yards of polychrome dual-density sole, specific steps
Are as follows:
Preamble preparation process, rubber plasticizing: crosslinkable red mixing rubber composition is plasticized in plasticizing apparatus, is moulded
Flow-like sizing material after change is kept in plasticizing charging barrel, and plasticization temperature is 90 DEG C, it is therefore an objective to make gum fluid, facilitate subsequent
Addition, can be kept the temperature, be kept the temperature by the ring wall internal heater in plasticizing charging barrel；Fluidisation sizing material is added after plasticizing
White, yellow rubber color forms polychrome sizing material, is divided into two parts, and portion is polychrome high density sizing material, and portion is polychrome low-density glue
Material, low-density sizing material are polychrome high density sizing material addition supercritical COs2It mixes, additive amount 4.0%, the two is temporarily stored into respectively respectively
From in plasticizing charging barrel；
Step 1: polychrome dual density feeds: upper mold half, lower mold half can form die cavity, mold cavity shapes and 42 after closing up
The shoes sole of code is consistent, and die cavity is divided into upper cavity and lower mode cavity by boundary of mold core；Die cavity is opened, manually by high density sizing material
Lower film die cavity is added, closes mold core, then upper film die cavity manually is added in low-density sizing material, is vacuumized after closing film, so
After can be heated up to 170 DEG C to die cavity, heater can be increased by the outer wall of upper mold half, lower mold half and achieved the goal, protected
Rubber product cures requirements are demonstrate,proved, 40s molding is stood,
Step 2: die sinking: opening die cavity, upper mold half, the lower mold half for including half of rubber product respectively are separated, take out
After mold core, the air-cooled mode combined with water cooling can be used, core temperature is controlled at 90 DEG C, prevents core temperature is excessively high from causing
The hollow inner rubber of the rubber product directly contacted with mold core vulcanizes in advance, or even incipient scorch occurs；
Step 3: secondary mould closing: by the upper mold half for including half of rubber product respectively, lower mold half is secondary closes up, rubber
Hollow form after being removed inside glue product in mold core；
Step 4: gas injection: it is filled with high temperature and high pressure gas in the hollow inside of rubber product, is allowed to have conditions of vulcanization, it is high
The pressure of warm high pressure gas is 40kg, and temperature is 170 DEG C；
Step 5: vulcanization and foaming vulcanization: the rubber product in die cavity is vulcanized, low-density sizing material is in low-density glue
It carries out being vulcanized while die cavity is filled up in foaming in upper cavity where expecting, in foaming process, since gap is reduced, in die cavity
Air pressure increases accordingly, and high density sizing material vulcanizes simultaneously in lower mode cavity, time 420s；
Step 6: it pressure release: by the high temperature and high pressure gas pressure release of hollow inside to normal pressure, avoids steep that wall from rupturing, influences product
Quality；
Step 7: twice-die-opening: opening membrane cavity, takes out one-time formed 42 yards of the sole of polychrome dual density.
Through detecting, 42 yards obtained of polychrome dual-density sole is heat-resisting, wear-resisting, weather-proof, moreover, same die cavity produces, matter
Amount is stablized, and dynamic balancing even results are good.
Embodiment 7
The disposable die press technology for forming of rubber product polychrome dual density of the present embodiment, the polychrome dual-density shoe of 44 yards of production
Bottom, the shape of upper mold half, lower mold half and mold core is consistent with the shape of 44 yards of polychrome dual-density sole, specific steps
Are as follows:
Preamble preparation process, rubber plasticizing: crosslinkable yellow mixing rubber composition is plasticized in plasticizing apparatus, is moulded
Flow-like sizing material after change is kept in plasticizing charging barrel, and plasticization temperature is 100 DEG C, it is therefore an objective to make gum fluid, facilitate subsequent
Addition, can be kept the temperature, be kept the temperature by the ring wall internal heater in plasticizing charging barrel；Fluidisation sizing material is added after plasticizing
Add white, haematochrome to form polychrome sizing material, is divided into two parts, portion is polychrome high density sizing material, and portion is polychrome low-density sizing material, low
Density sizing material is polychrome high density sizing material addition supercritical CO2It mixes, additive amount 5.0%, the two is temporarily stored into respective modeling respectively
In material cylinder；
Step 1: polychrome dual density feeds: upper mold half, lower mold half can form die cavity, mold cavity shapes and 44 after closing up
The shoes sole of code is consistent, and die cavity is divided into upper cavity and lower mode cavity by boundary of mold core；Die cavity is opened, manually by high density sizing material
Lower film die cavity is added, closes mold core, then upper film die cavity manually is added in low-density sizing material, is vacuumized after closing film, so
After can be heated up to 180 DEG C to die cavity, heater can be increased by the outer wall of upper mold half, lower mold half and achieved the goal, protected
Rubber product cures requirements are demonstrate,proved, 50s molding is stood；
Step 2: die sinking: opening die cavity, upper mold half, the lower mold half for including half of rubber product respectively are separated, take out
After mold core, the air-cooled mode combined with water cooling can be used, core temperature is controlled at 100 DEG C, prevents core temperature is excessively high from leading
It causes the hollow inner rubber of the rubber product directly contacted with mold core to vulcanize in advance, or even incipient scorch occurs；
Step 3: secondary mould closing: by the upper mold half for including half of rubber product respectively, lower mold half is secondary closes up, rubber
Hollow form after being removed inside glue product in mold core；
Step 4: gas injection: it is filled with high temperature and high pressure gas in the hollow inside of rubber product, is allowed to have conditions of vulcanization, it is high
The pressure of warm high pressure gas is 40kg, and temperature is 180 DEG C；
Step 5: vulcanization and foaming vulcanization: the rubber product in die cavity is vulcanized, low-density sizing material is in low-density glue
It carries out being vulcanized while die cavity is filled up in foaming in upper cavity where expecting, in foaming process, since gap is reduced, in die cavity
Air pressure increases accordingly, and high density sizing material vulcanizes simultaneously in lower mode cavity, time 1000s；
Step 6: it pressure release: by the high temperature and high pressure gas pressure release of hollow inside to normal pressure, avoids steep that wall from rupturing, influences product
Quality；
Step 7: twice-die-opening: opening membrane cavity, takes out one-time formed 44 yards of the sole of polychrome dual density.
Through detecting, 44 yards obtained of polychrome dual-density sole is heat-resisting, wear-resisting, weather-proof, moreover, same die cavity produces, matter
Amount is stablized, and dynamic balancing even results are good.
Schematically the present invention and embodiments thereof are described above, description is not limiting.So if
Those of ordinary skill in the art are inspired by it, without departing from the spirit of the invention, not inventively designs
Frame mode similar with the technical solution and embodiment out, are within the scope of protection of the invention.
Claims (7)
1. a kind of disposable die press technology for forming of rubber product polychrome dual density, which is characterized in that completed in same die cavity more
The addition of color dual-density rubber material, hollow, foaming and vulcanization process, the die cavity include upper mold half, lower mold half and mold core.
2. the disposable die press technology for forming of rubber product polychrome dual density as described in claim 1, which is characterized in that step are as follows:
Step 1: polychrome dual density feeds: sizing material addition lower film die cavity is closed mold core by film and mold core in openings, then by sizing material
Film die cavity in addition stands molding after closing film；The sizing material is respectively the high density sizing material and one of one or more of colors
Kind or varicolored low-density sizing material, wherein low-density sizing material is that high density sizing material adds foaming agent or swelling agent；
Step 2: die sinking: opening die cavity, take out mold core；
Step 3: secondary mould closing: by the upper mold half for including half of rubber product respectively, lower mold half is secondary closes up, rubber system
Hollow form after being removed inside product in mold core；
Step 4: gas injection: being filled with high temperature and high pressure gas in the hollow inside of rubber product；
Step 5: vulcanization and foaming vulcanization: the rubber product in die cavity is vulcanized, low-density sizing material is in low-density sizing material institute
Upper cavity or lower mode cavity in vulcanized while die cavity is filled up in foaming, high density sizing material is same in the other half die cavity
When vulcanize；
Step 6: pressure release: by the high temperature and high pressure gas pressure release of hollow inside；
Step 7: twice-die-opening: opening membrane cavity, takes out the one-time formed rubber product of polychrome dual density.
3. the disposable die press technology for forming of rubber product polychrome dual density as claimed in claim 2, which is characterized in that step 1 is closed
It is vacuumized after mould, is in negative pressure state in membrane cavity；After vacuumizing, 130~180 DEG C are heated up to die cavity；Stand 5~50s.
4. the disposable die press technology for forming of rubber product polychrome dual density as claimed in claim 2, which is characterized in that step 3 takes
Out after mold core, mode is combined using air-cooled and/or water cooling, core temperature is controlled at 60~100 DEG C；
The pressure of step 5 high temperature and high pressure gas is 10~50kg, and temperature is 130~180 DEG C；
The time of step 6 vulcanization and foaming vulcanization is 100~1000s.
5. the disposable die press technology for forming of rubber product polychrome dual density as claimed in claim 2, which is characterized in that the upper half
The shape of mold, mold core and lower mold half is adapted with the shape of rubber product.
6. the disposable die press technology for forming of rubber product polychrome dual density as claimed in claim 5, which is characterized in that described highly dense
Spend the reclaimed rubber or mixing rubber composition that sizing material is crosslinkable scrap rubber, or another color mixing rubber combination
Object.
7. the disposable die press technology for forming of rubber product polychrome dual density as claimed in claim 5, which is characterized in that the foaming
The additive amount of agent or swelling agent is 1.0~5.0%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810957808.7A CN109049478A (en) | 2018-08-22 | 2018-08-22 | A kind of disposable die press technology for forming of rubber product polychrome dual density |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810957808.7A CN109049478A (en) | 2018-08-22 | 2018-08-22 | A kind of disposable die press technology for forming of rubber product polychrome dual density |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109049478A true CN109049478A (en) | 2018-12-21 |
Family
ID=64687838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810957808.7A Withdrawn CN109049478A (en) | 2018-08-22 | 2018-08-22 | A kind of disposable die press technology for forming of rubber product polychrome dual density |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109049478A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109532336A (en) * | 2019-01-03 | 2019-03-29 | 安徽世界村新材料有限公司 | A kind of inflatable trouble-proof tire and its processing method |
| CN112873937A (en) * | 2020-12-28 | 2021-06-01 | 东莞海瑞斯新材料科技有限公司 | Method for manufacturing multi-functional sole |
-
2018
- 2018-08-22 CN CN201810957808.7A patent/CN109049478A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109532336A (en) * | 2019-01-03 | 2019-03-29 | 安徽世界村新材料有限公司 | A kind of inflatable trouble-proof tire and its processing method |
| CN112873937A (en) * | 2020-12-28 | 2021-06-01 | 东莞海瑞斯新材料科技有限公司 | Method for manufacturing multi-functional sole |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109109352A (en) | A kind of rubber product disposably injects, hollow and sulfidization molding production method | |
| CN101955599B (en) | Formula for in situ preparing rolled high brightness shoe side rubber and preparation method thereof | |
| HU201698B (en) | Method for manufacturing plastic plugs by injection moulding | |
| CN103842148A (en) | Method for injection molding at low, substantially constant pressure | |
| CN109049478A (en) | A kind of disposable die press technology for forming of rubber product polychrome dual density | |
| CN101224622A (en) | Forming method of dichroic double-substantial foaming plastic and application thereof | |
| CN107379388A (en) | Using the microporous foam and in-mold decoration composite forming device and method of composite foamable agent | |
| CN109318442A (en) | A kind of dual density is disposably injection moulded rubber tyre and its production technology | |
| CN109318441A (en) | A kind of rubber product dual density is disposably injection moulded production system and its production technology | |
| CN109251380A (en) | A kind of primary hollow sulfidization molding sole and preparation method thereof of two-color dual-density | |
| CN109177258A (en) | A kind of rubber product disposably in-molded curing system and molding sulfuration method | |
| CN201357567Y (en) | PVC twin-color air-blow shoe die | |
| CN109177262A (en) | A kind of disposable injection molding technique of rubber product two-color dual-density | |
| CN208827187U (en) | A kind of disposable in-molded curing system of rubber product | |
| CN219055088U (en) | Rubber injection vulcanizing equipment | |
| CN109181124A (en) | A kind of hollow sulfidization molding sole of high elasticity abrasion-proof and preparation method thereof | |
| CN109732842A (en) | A kind of Shooting Technique | |
| CN105437450A (en) | Forming method of plastic rubber product | |
| CN109572015A (en) | A kind of dual density molding foam-in-mould sulfidization molding rubber tyre and its manufacture craft | |
| CN109171101A (en) | A kind of high resiliency hollow molding rubber health-care soles and its manufacture craft | |
| CN109318443A (en) | A kind of dual density is disposably injection moulded rubber and plastic pallet and its production technology | |
| CN109367965A (en) | A kind of high-strength light hollow molding rubber and plastic pallet and its manufacture craft | |
| CN110355970A (en) | A method of colour TPU expanded beads being disposably made using twin screw device | |
| CN209036846U (en) | A kind of rubber dual density double injection product foam-in-mould sulfidization molding system | |
| CN209395147U (en) | A kind of rubber product dual density is disposably injection moulded production system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181221 |
|
| WW01 | Invention patent application withdrawn after publication |