CN209395147U - A kind of rubber product dual density is disposably injection moulded production system - Google Patents

Abstract

The utility model discloses a kind of rubber product dual densities to be disposably injection moulded production system, belongs to rubber product technology field.The forming production system of the utility model, the injection device and pressing mold vulcanization plant for vulcanizing pedestal including injection machine base and pressing mold and being individually fixed in the two, it further include the hollow devices of pressing mold vulcanization pedestal side, pressing mold vulcanization plant includes that two shapes are identical, the different mold core of specification, two kinds of different plasticized rubber material of density are corresponded to different mold cores and are successively injected into the mold of pressing mold vulcanization plant by injection device, high pressure gas is formed in the plasticized rubber material that high pressure gas is passed through in the mold of pressing mold vulcanization plant by hollow devices, it can guarantee inside and outside uniform vulcanization effect, pressing mold vulcanization plant carries out pressing mold and vulcanization to the plasticized rubber material in mold, the injection of dual-density rubber product can be completed in a mold, hollow and vulcanization, avoid product in the circulation of each process, to reduce production cost.

Description

A kind of rubber product dual density is disposably injection moulded production system

Technical field

The utility model belongs to rubber product technology field, specifically, being related to a kind of rubber product dual density one Secondary property is injection moulded production system.

Background technique

Usual rubber dual density product uses double injection moulding process, and injection moulding (is injected using double injection head in two steps Machine), 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 rubber material, then Low (height) density rubber material is injected, dual-density rubber product is obtained.Using double injection head injector, in the mobile alignment of injection head In the process, 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 and set to reach dual-density rubber product Standby occupied area.

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.

Utility model content

1. utility model technical problems to be solved

When producing dual-density rubber product in the prior art to overcome, there are two sets of injection mechanism equipment costs height, injections The problems such as separately carrying out with vulcanization, consume energy, is time-consuming, at high cost, it is disposable that the utility model provides a kind of rubber product dual density It is injection moulded production system.The utility model is integrated by the sizing material injection moulding of two kinds of density, hollow and vulcanization plant Change, reduces cost, the molding time of rubber product, and reduce energy consumption, moreover it is possible to eliminate and transport between rubber product process Expense.

2. technical solution

To solve the above problems, the utility model adopts the following technical solution:

A kind of rubber product dual density is disposably injection moulded production system, including injection machine base and pressing mold vulcanize pedestal And it is individually fixed in injection device and pressing mold vulcanization plant in the two, it further include the belly shirt of pressing mold vulcanization pedestal side It sets, the pressing mold vulcanization plant includes two mold cores that shape is identical, specification is different, and the injection device is different by density Two kinds of plasticized rubber material correspond to different mold cores and be successively injected into the mold of pressing mold vulcanization plant, the hollow devices Mold core two forms high pressure gas after removing in the plasticized rubber material that high pressure gas can be passed through in the mold of pressing mold vulcanization plant Hollow cavity is allowed to condition of high voltage required for having vulcanization, it is ensured that inside and outside uniform vulcanization effect, the pressing mold vulcanization dress It sets and pressing mold and vulcanization is carried out to the plasticized rubber material in mold, the note of dual-density rubber product can be completed in a mold It penetrates, hollow and vulcanization, avoids product in the circulation of each process, to reduce production cost.

Further embodiment, injection device include loading hopper, injection cylinder, plasticizing injection barrel, injection seat Shift cylinder, Pre-firing material-holding chamber, continuous frothing machine, material switching oil cylinder, injection head and material switch conversion valve；The loading hopper and plasticizing The beginning of injection barrel communicates, and plasticizing injection barrel is fixed on above the cylinder barrel of injection cylinder；The plasticizing injection barrel and company The discharge port of continuous frothing machine passes through feed pipe one respectively and feed pipe two is communicated with pre-firing material-holding chamber, and the material switches switching valve Door controls the alternation switch of feed pipe one and feed pipe two after connecting with the piston rod of material switching oil cylinder, to switch different sizing materials Injection；The plasticizing injection barrel, continuous frothing machine and material switching oil cylinder are both secured to pre-firing material-holding chamber top, the note It penetrates in in-oil cylinder injection ram insertion pre-firing material-holding chamber, injection head, injection head face is arranged in the front end of the pre-firing material-holding chamber The mould gate of pressing mold vulcanization plant uses the high and low density sizing material of same injection head alternate injection；The bottom of the pre-firing material-holding chamber Portion is fixedly connected by fixed plate with the piston rod of injection seat Shift cylinder；The injection seat Shift cylinder is fixed on injector bottom On seat；The outer wall of the plasticizing injection barrel is coated with plasticizing heater, for being plasticized high density sizing material.

Further embodiment, pressing mold vulcanization plant include die cylinder, upper mold half, lower mold half, mold core one, mould Have inner core two and mold core rotational fuel tank；The lower mold half is fixed on pressing mold vulcanization pedestal, and the surface of lower mold half cooperates It is provided with upper mold half, the upper mold half is detachably connected with die cylinder；The die cylinder is fixed by fixed frame；Institute State that mold core one is identical with two shape of mold core, specification is different, the two tail end is opposite, detachable with mold core conversion support Fixed, the mold core conversion support is T-shaped, the fixed company of shaft after mold core rotational fuel tank is inserted into bottom end, with mold core rotational fuel tank It connects；The mold core rotational fuel tank driven mold inner core one, mold core two are converted among upper mold half and lower mold half；Upper half Mold, lower mold half, mold core one and mold core two are equipped with according to the shape of rubber product；The mold core rotation oil Cylinder is fixed on pressing mold vulcanization pedestal, and alternately collaboration is made for upper mold half, lower mold half and mold core one, mold core two With, it can easily make and want dual density and need hollow tire class rubber product, it is easy to operate.

Further scheme, hollow devices include being vacuum-evacuated station, High-Pressure Compressor, high-pressure air pipe and air tube, The air tube is uniformly distributed in upper mold half and/or lower mold half, and is communicated therewith；The air tube is distinguished by high-pressure air pipe It is communicated with vacuum evacuation station, High-Pressure Compressor, vacuum evacuation to entire mold and high-pressure aerated using a set of pipeline It carries out, easy to operate, part of appliance utilization rate is high.

Further scheme, hollow devices further include Electrocontrolled tee valve door, air heater and pipe fitting；The high pressure It after air compressor is passed through air heater by tracheae, then connects with Electrocontrolled tee valve door, the vacuum evacuation station passes through gas Pipe is connected with Electrocontrolled tee valve door, and the high-pressure air pipe is connected with Electrocontrolled tee valve door, and three is respectively the same as Electrocontrolled tee valve door Three access connections；The other end of the high-pressure air pipe is connected to by pipe fitting with air tube, and the pipe fitting is fixed on pressing mold sulphur On the fixed frame for changing pedestal, by Electrocontrolled tee valve door, to vacuum evacuation and high-pressure aerated alternate operation, operation is more convenient, High pressure gas can also be heated, avoid the internal-external temperature difference of rubber product when vulcanization excessive and influence vulcanization effect.

Further scheme, pressing mold vulcanization plant further include molding crossbeam, and the hydraulic stem of the die cylinder, which passes through, to be closed It is fixedly connected again with upper mold half after the pilot hole of mould crossbeam；The molding crossbeam is fixed on the fixed frame of pressing mold vulcanization plant On, molding crossbeam plays positioning, guiding and the triple role effect for stablizing opening and closing mold, and ensure that leakproofness and sulphur in turn Stability when change.

Further scheme, pressing mold vulcanization plant further include die heater；The die heater is set to upper half The top of mold and/or the lower part of lower mold half make sizing material keep stable sulfided state high-pressure aerated in sulfidation.

Further scheme, it is fixed seat in the plane that pressing mold, which vulcanizes pedestal together with pressing mold vulcanization plant and hollow devices,；Institute It is movable seat in the plane that injection machine base, which is stated, together with injection device；The activity seat in the plane corresponds to multiple fixed seats in the plane, and in each fixation It is moved back and forth between seat in the plane, same injection device corresponds to multiple pressing mold vulcanization plants, in the sulfidation of rubber product, successively The injection work for carrying out different pressing mold vulcanization plants, greatly improves work efficiency.

A kind of rubber product dual density is disposably injection moulded the production technology of production system, and one-step method completes dual density glue Material injection, hollow and sulfuration process, while improving the production efficiency, it is ensured that the stability of rubber product production.

Further production technology, step are as follows:

Step 1: the plasticizing of high density rubber: material switching oil cylinder control material switching conversion valve is by feed pipe one and in advance Penetrate material-holding chamber connection；Increase density rubber pellet by loading hopper and enter plasticizing injection barrel, while plasticizing injection screw rotates Plasticizing high density rubber is entered into pre-firing material-holding chamber, under the promotion of material, injection ram is moved back to setting position；

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 Electrocontrolled tee valve door, vacuum evacuation station are connected to by high-pressure air pipe, starting vacuum evacuation It stands, air is by air tube, high-pressure air pipe, the discharge of vacuum evacuation station in upper mold half and lower mold half；

Step 4: injection: starting injection seat Shift cylinder, by the upper mold half and lower mold half after injection head insertion molding It is interior, start injection cylinder, injection ram Forward will be in the high density rubber injection mold in pre-firing material-holding chamber；Injection head is closed； Start injection seat Shift cylinder, injection head is exited into mold, molding is stood after injection；

Step 5: the foaming of low-density sizing material: material switching oil cylinder control material switching conversion valve is by feed pipe two and in advance Penetrate material-holding chamber connection；Low-density rubber is entered pre-firing material-holding chamber by feed pipe two by continuous frothing machine, under the promotion of material, Injection ram is moved back to setting position；

Step 6: die sinking: starting die cylinder moves up, and opens the upper half for including half of high density stock rubber product respectively Mold and lower mold half start mold core rotational fuel tank, and mold core conversion support extracts mold core one out, and mold core two is inserted Enter at the center between upper mold half and lower mold half；

Step 7: secondary mould closing: starting die cylinder moves down, and is closed upper mold half and lower mold half；

Step 8: biphasic injection: starting injection seat Shift cylinder, by the upper mold half and lower half after injection head insertion molding In mold, start injection cylinder, injection ram Forward will be in the low-density rubber injection mold in pre-firing material-holding chamber；

Step 9: mold core is moved back in die sinking: starting die cylinder moves up, and opens upper mold half and lower mold half, and starting mold core turns Dynamic oil cylinder, mold core conversion support extract mold core two out；

Step 10: molding three times: starting die cylinder moves down, and will include the upper mold half of half of rubber product respectively under Half mold closes up again, the hollow form after removing inside rubber product in mold core two；

Step 11: high-pressure aerated: Electrocontrolled tee valve door energization conversion connection High-Pressure Compressor and air heater, And air tube is connected after high pressure gas is heated by air heater by high-pressure air pipe, upper half is entered by high-pressure air pipe, air tube Mold and lower mold half inner cavity are allowed to high-temperature and high-pressure conditions required for having vulcanization；

Step 12: vulcanization: upper mold half and the rubber product of lower mold half inner cavity are vulcanized；

Step 13: pressure release: by the high temperature and high pressure gas pressure release of hollow inside, rubber product when die sinking is avoided to burst；

Step 14: be opened again: starting die cylinder moves up, and opens upper mold half and lower mold half, takes out hollow Rubber product.

3. beneficial effect

Compared with prior art, the utility model has the following obvious advantages:

(1) the rubber product dual density of the utility model is disposably injection moulded production system, and same injection nozzle is alternately infused Different densities sizing material is penetrated, centering again is not necessarily to, injection gate is avoided and is easy to the problem blocked or cast gate is unsmooth, moreover, can To complete dual-density rubber material injection, hollow, sulfidation in a system, can effectively solve two in rubber product production process It is secondary to pressurize, heat again, energy consumption, time-consuming, problem at high cost are caused, avoids product in the circulation of each process, also to reduce rubber The cost of product molding time, reduces energy consumption, and can eliminate shipping expense between rubber product process；Moreover, also reducing Reheating bring noxious gas emission, reduces the rejection rate of reheating bring rubber product, reduces secondary Heating pressurization bring energy consumption, has achieved the effect that environmental protection and energy saving；

(2) the rubber product dual density of the utility model is disposably injection moulded production system, can be according to rubber product Different process requirement, technological parameter needed for adjusting: when injection pressure, injection temperature, middle air source pressure, gas source temperature, vulcanization Between, reach product optimum efficiency；

(3) the rubber product dual density of the utility model is disposably injection moulded production system, and material is made full use of to switch The synergistic effect of conversion valve and material switching oil cylinder, two mold cores are placed according to the desired sequence alternate that is transferred to, for note The sizing material for penetrating different densities lays the foundation；

(4) the rubber product dual density of the utility model is disposably injection moulded production system, entire mold (including upper half Mold, lower mold half and mold core one, two) molding and seal operation are accomplished without any letup, simple, convenient quick；

(5) the rubber product dual density of the utility model is disposably injection moulded production system, molding crossbeam play positioning, Guiding and the triple role effect for stablizing opening and closing mold, and ensure that stability when leakproofness and vulcanization in turn；

(6) the rubber product dual density of the utility model is disposably injection moulded production system, and die heater makes sizing material Keep stable vulcanization sulfided state high-pressure aerated in sulfidation；

(7) the rubber product dual density of the utility model is disposably injection moulded production system, and movable seat in the plane corresponds to multiple Fixed seat in the plane, and moved back and forth between each fixed seat in the plane, same injection device corresponds to multiple pressing mold vulcanization plants, in rubber In the sulfidation of product, the injection work of different pressing mold vulcanization plants is successively carried out, is greatly improved work efficiency；

(8) the rubber product dual density of the utility model is disposably injection moulded the production technology of production system, vulcanizes The stomata that self-closed air tube leaves in journey is able to maintain hollow high pressure conditions, is not necessarily to defuelling；

(9) production technology of the utility model can continue production free of discontinuities, production efficiency and high degree of automation.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is schematic diagram after the mould part of the utility model amplifies.

In figure: 1, injecting machine base；2, injection device；3, pressing mold vulcanization plant；4, hollow devices；5, pressing mold vulcanizes platform Seat；6, rubber product；20, fixed plate；21, loading hopper；22, injection cylinder；23, plasticizing injection barrel；24, injection seat is mobile Oil cylinder；25, pre-firing material-holding chamber；26, continuous frothing machine；27, material switches oil cylinder；28, injection head；29, material switches switching valve Door；31, die cylinder；32, crossbeam is molded；33, upper mold half；34, lower mold half；35, mold core one；36, mold core Two；37, mold core conversion support；38, die heater；39, mold core rotational fuel tank；41, vacuum evacuation station；42, Electrocontrolled tee valve Door；43, air heater；44, High-Pressure Compressor；45, high-pressure air pipe；46, pipe fitting；47, air tube；221, injection is lived Plug；231, it is plasticized injection screw；232, feed pipe one；233, it is plasticized heater；261, feed pipe two.

Specific embodiment

For the content for further appreciating that the utility model, this utility model is described in detail in conjunction with attached drawing.

Embodiment 1

The rubber product dual density of the present embodiment is disposably injection moulded production system, as shown in Figure 1, including injector bottom The injection device 2 and pressing mold vulcanization plant 3 that seat 1 and pressing mold vulcanize pedestal 5 and be individually fixed in the two, further include pressing mold Vulcanize the hollow devices 4 of 5 side of pedestal, the pressing mold vulcanization plant 3 includes in two molds that shape is identical, specification is different Core, two inner cores are successively placed in mold, and two kinds of different plasticized rubber material of density are corresponded to different moulds by the injection device 2 Tool inner core is successively injected into the mold of pressing mold vulcanization plant 3, and high pressure gas can be passed through pressing mold vulcanization dress by the hollow devices 4 Formation high pressure gas hollow cavity in the plasticized rubber material in 3 mold is set, condition of high voltage required for having vulcanization, institute are allowed to It states pressing mold vulcanization plant 3 and pressing mold and vulcanization is carried out to the plasticized rubber material in mold.

The rubber product dual density of the present embodiment is disposably injection moulded production system, can complete in a mold double The injection of density rubber product, hollow and vulcanization, avoid product in the lasting circulation of each process, to reduce production cost.

Embodiment 2

The rubber product dual density of the present embodiment is disposably injection moulded production system, and basic structure is improved with embodiment 1 Place is: injection device 2 includes loading hopper 21, injection cylinder 22, plasticizing injection barrel 23, injection seat Shift cylinder 24, pre- Penetrate material-holding chamber 25, continuous frothing machine 26, material switching oil cylinder 27, injection head 28 and material switching conversion valve 29；The charging Bucket 21 is communicated with the beginning of plasticizing injection barrel 23, and plasticizing injection barrel 23 is fixed on above the cylinder barrel of injection cylinder 22；It is described The discharge port of plasticizing injection barrel 23 and continuous frothing machine 26 passes through feed pipe 1 and feed pipe 2 261 respectively and pre-firing is held Material chamber 25 communicates, and the material switching conversion valve 29 controls feed pipe one after connecting with the piston rod of material switching oil cylinder 27 232 and feed pipe 2 261 alternation switch, to switch the injection of different sizing materials；Barrel 23, continuous frothing machine are injected in the plasticizing 26 and material switching oil cylinder 27 be both secured to 25 top of pre-firing material-holding chamber, injection ram 221 in the injection cylinder 22 is inserted into In pre-firing material-holding chamber 25, injection head 28 is arranged in the front end of the pre-firing material-holding chamber 25,28 face pressing mold vulcanization plant 3 of injection head Mould gate uses the same high and low density sizing material of 28 alternate injection of injection head；The bottom of the pre-firing material-holding chamber 25 passes through fixation Plate 20 is fixedly connected with the piston rod of injection seat Shift cylinder 24；The injection seat Shift cylinder 24 is fixed on injection machine base 1 On；The outer wall of the plasticizing injection barrel 23 is coated with plasticizing heater 233, for being plasticized high density sizing material.Pressing mold vulcanization dress Setting 3 includes die cylinder 31, upper mold half 33, lower mold half 34, mold core 1, mold core 2 36 and mold core rotation Oil cylinder 39；The lower mold half 34 is fixed on pressing mold vulcanization pedestal 5, and the surface of lower mold half 34 is equipped with upper mold section Tool 33, the upper mold half 33 is detachably connected with die cylinder 31；The die cylinder 31 is fixed by fixed frame；The mould Have inner core 1 and 2 36 shape of mold core is identical as tire, but specification is different, the two tail end is opposite, converts branch with mold core Frame 37 is detachably fixed, and the mold core conversion support 37 is T-shaped, after mold core rotational fuel tank 39 is inserted into bottom end, rotates oil with mold core The shaft of cylinder 39 is fixedly connected；The 39 driven mold inner core 1 of mold core rotational fuel tank, mold core 2 36 are in upper mold half 33 and lower mold half 34 among convert；Upper mold half 33, lower mold half 34, mold core 1 and mold core 2 36 are according to rubber The shape of glue product 6 is equipped with；The mold core rotational fuel tank 39 is fixed on pressing mold vulcanization pedestal 5, upper mold half, female die Tool and mold core 1, mold core 2 36 alternately act synergistically, and can easily make and want dual density and need hollow Tire class rubber product, it is easy to operate.Hollow devices 4 include 41, High-Pressure Compressor 44, high-pressure air pipe of vacuum evacuation station 45 and air tube 47, the air tube 47 is uniformly distributed in upper mold half 33 and/or lower mold half 34, and is communicated therewith；The gas Needle 47 is communicated with vacuum evacuation station 41, High-Pressure Compressor 44 respectively by high-pressure air pipe 45, is arranged the vacuum of entire mold Gas and it is high-pressure aerated carried out using a set of pipeline, easy to operate, part of appliance utilization rate is high.

The rubber product dual density of the present embodiment is disposably injection moulded the production technology of production system, interior low for producing Outer high dual density tire product, one-step method complete dual-density rubber material injection, hollow and sulfuration process, are improving production efficiency Simultaneously, it is ensured that the stability of rubber product production, specific steps are as follows:

Step 1: high density rubber is plasticized: material switches oil cylinder 27 and controls material switching conversion valve 29 for feed pipe one 232 are connected to pre-firing material-holding chamber 25；Increase density rubber pellet by loading hopper 21 and enters plasticizing injection barrel 23, plasticizing injection Plasticizing high density rubber is entered into pre-firing material-holding chamber 25 while screw rod 231 rotates, under the promotion of material, injection ram 221 It moves back to position is arranged, scale can be set on injection ram 221, inject rubber material using quantity to determine；

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: vacuum evacuation station 41 being connected to by high-pressure air pipe 45, starting vacuum evacuation station 41, upper mold section Tool 33 is discharged with air in lower mold half 36 by air tube 47, high-pressure air pipe 45, vacuum evacuation station 41, by survival gas in mold Extraction, and then guarantee injection, hollow and vulcanization effect；

Step 4: injection: opening injection head 28, start injection seat Shift cylinder 24, after the insertion molding of injection head 28 In upper mold half 33 and lower mold half 34, start injection cylinder 22, injection ram 221 moves forward, will be whole in pre-firing material-holding chamber 25 High density rubber injection mold in, after injection stand molding；

Step 5: low-density sizing material foams: material switches oil cylinder 27 and controls material switching conversion valve 29 for feed pipe two 261 are connected to pre-firing material-holding chamber 25；Low-density rubber is entered pre-firing material-holding chamber by feed pipe 2 261 by continuous frothing machine 26 25, under the promotion of material, injection ram 221 is moved back to setting position, at this point, volume of material is less than step in pre-firing material-holding chamber 25 Rapid one, i.e., the location point that injection ram 221 moves back will keep right compared to step 1；

Step 6: die sinking: starting die cylinder 31 moves up, and unlatching includes the upper of half of high density stock rubber tire respectively Half mold 33 and lower mold half 34 start mold core rotational fuel tank 39, and mold core conversion support 37 extracts mold core 1 out, and will Mold core 2 36 is inserted at the center between upper mold half 33 and lower mold half 34；Under normal circumstances, mold core 2 36 Shape and mold core 1 are identical, but 2 36 volume of mold core is less than mold core 1；

Step 7: secondary mould closing: starting die cylinder 31 moves down, closure upper mold half 33 and lower mold half 34；

Step 8: biphasic injection: starting injection seat Shift cylinder 24, by the upper mold half 33 after the insertion molding of injection head 28 In lower mold half 34, start injection cylinder 22, injection ram 221 moves forward, and the low-density rubber in pre-firing material-holding chamber 25 is infused Enter in mold；

Step 9: mold core is moved back in die sinking: starting die cylinder 31 moves up, and opens upper mold half 33 and lower mold half 34, starting Mold core rotational fuel tank 39, is rotated by 90 °, and mold core conversion support 37 extracts mold core 2 36 out；

Step 10: molding three times: starting die cylinder 31 moves down, and will include the upper mold half 33 of half of rubber tyre respectively Close up again with lower mold half 34, inside tires are in the hollow form after mold core 2 36 is removed；

Step 11: high-pressure aerated: connection High-Pressure Compressor 44 and high-pressure air pipe 45, and connect by high-pressure air pipe 45 Vent wire 47 after high pressure gas is heated by air heater 43, enters upper mold half 33 by high-pressure air pipe 45, air tube 47 With 36 inner cavity of lower mold half, it is allowed to high-temperature and high-pressure conditions required for having vulcanization；

Step 12: vulcanization: upper mold half 33 and the dual density tire of 34 inner cavity of lower mold half are vulcanized；

Step 13: pressure release: by the high temperature and high pressure gas pressure release of hollow inside, dual density tyre break when avoiding being opened；

Step 14: twice-die-opening: starting die cylinder 31 moves up, and opens upper mold half 33 and lower mold half 34, takes out Hollow high outside and low outside dual density tire.

The high outside and low outside dual density tire of the present embodiment disposably injects dual density forming production system and its production work Skill can effectively solve double injection head injector, and in the mobile alignment procedures of injection head, injection gate is easy to blocking or cast gate not Freely, waste product is led to the problem of, moreover, two sets of injection mechanisms, not only increase equipment cost, but also increase occupation area of equipment, this The production system of embodiment can also be required according to the different process of rubber product, technological parameter needed for adjusting: injection pressure, injection Temperature, gas source ratio, gas source temperature etc., therefore, the production system of this present embodiment reduces the cost of dual density tire With, molding time, reduce energy consumption, and the rejection rate of dual density tire can be reduced, ensure that product quality.

Embodiment 3

The rubber product dual density of the present embodiment is disposably injection moulded production system, and basic structure is improved with embodiment 2 Place is: as shown in Fig. 2, mold core 1 and 2 36 shape of mold core are identical as sole, but specification is different, belly shirt Setting 4 further includes Electrocontrolled tee valve door 42, air heater 43 and pipe fitting 46；The High-Pressure Compressor 44 is logical by tracheae It after entering air heater 43, then connects with Electrocontrolled tee valve door 42, vacuum evacuation station 41 passes through tracheae and Electrocontrolled tee valve Door 42 connects, and the high-pressure air pipe 45 and Electrocontrolled tee valve door 42 connect, and three is logical with three of Electrocontrolled tee valve door 42 respectively Road connection；The other end of the high-pressure air pipe 45 is connected to by pipe fitting 46 with air tube 47, and the pipe fitting 46 is fixed on pressing mold Vulcanize on pedestal 5, by Electrocontrolled tee valve door 42, to vacuum evacuation and high-pressure aerated alternate operation, operation is more convenient, may be used also To be heated to high pressure gas, avoids the internal-external temperature difference of rubber product when vulcanization excessive and influence vulcanization effect.

The rubber product dual density of the present embodiment is disposably injection moulded the production technology of production system, can be applied to interior height The production of outer low dual density hollow rubber sole, step are as follows:

Step 1: low-density sizing material foams: material switches oil cylinder 27 and controls material switching conversion valve 29 for feed pipe two 261 are connected to pre-firing material-holding chamber 25；Continuous frothing machine 26 enters the low-density rubber after foaming by feed pipe 2 261 pre- Material-holding chamber 25 is penetrated, under the promotion of material, injection ram 221 is moved back to setting position；Quarter can be set on injection ram 221 Degree injects rubber material using quantity to determine；

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: vacuum evacuation station 41 is connected to by high-pressure air pipe 45, is started by starting Electrocontrolled tee valve door 42 Vacuum evacuation station 41, upper mold half 33 is with air in lower mold half 36 by air tube 47, high-pressure air pipe 45,41 rows of vacuum evacuation station Out, survival gas in mold is extracted out, and then guarantees injection, hollow and vulcanization effect；

Step 4: injection: opening injection head 28, start injection seat Shift cylinder 24, after the insertion molding of injection head 28 In upper mold half 33 and lower mold half 34, start injection cylinder 22, injection ram 221 moves forward, will be whole in pre-firing material-holding chamber 25 Low-density rubber injection mold in, after injection stand molding；

Step 5: high density rubber granule is plasticized: material switches oil cylinder 27 and controls material switching conversion valve 29 for feed pipe One 232 are connected to pre-firing material-holding chamber 25；Increase density rubber pellet by loading hopper 21 and enters plasticizing injection barrel 23, plasticizing note It penetrates and plasticizing high density rubber is entered into pre-firing material-holding chamber 25 while screw rod 231 rotates, under the promotion of material, injection ram 221 move back to setting position；At this point, volume of material is less than step 1, the i.e. position that moves back of injection ram 221 in pre-firing material-holding chamber 25 Setting will a little keep right compared to step 1；

Step 6: die sinking: starting die cylinder 31 moves up, and unlatching includes the upper of half of low-density stock rubber sole respectively Half mold 33 and lower mold half 34 start mold core rotational fuel tank 39, and mold core conversion support 37 extracts mold core 1 out, and will Mold core 2 36 is inserted at the center between upper mold half 33 and lower mold half 34；Under normal circumstances, mold core 2 36 Shape and mold core 1 are identical, but 2 36 volume of mold core is less than mold core 1；

Step 7: secondary mould closing: starting die cylinder 31 moves down, closure upper mold half 33 and lower mold half 34；

Step 8: biphasic injection: starting injection seat Shift cylinder 24, by the upper mold half 33 after the insertion molding of injection head 28 In lower mold half 34, start injection cylinder 22, injection ram 221 moves forward, and the low-density rubber in pre-firing material-holding chamber 25 is infused Enter in mold；

Step 9: mold core is moved back in die sinking: starting die cylinder 31 moves up, and opens upper mold half 33 and lower mold half 34, starting Mold core rotational fuel tank 39, is rotated by 90 °, and mold core conversion support 37 extracts mold core 2 36 out；

Step 10: molding three times: starting die cylinder 31 moves down, and will include the upper mold half 33 of half of rubber soles respectively Close up again with lower mold half 34, the hollow form after being removed inside rubber product in mold core 2 36；

Step 11: high-pressure aerated: 42 energization conversion connection High-Pressure Compressor 44 of Electrocontrolled tee valve door and high pressure gas Pipe 45, and air tube 47 is connected after high pressure gas is heated by air heater 43 by high-pressure air pipe 45 and passes through high-pressure air pipe 45, air tube 47 enters upper mold half 33 and 36 inner cavity of lower mold half, is allowed to high-temperature and high-pressure conditions required for having vulcanization；

Step 12: vulcanization: upper mold half 33 and the dual-density sole of 34 inner cavity of lower mold half are vulcanized；

Step 13: pressure release: by the high temperature and high pressure gas pressure release of hollow inside, sole hollow when die sinking is avoided to burst；

Step 14: be opened again: starting die cylinder 31 moves up, and opens upper mold half 33 and lower mold half 34, takes out Hollow low inside and high outside dual-density sole.

Embodiment 4

The rubber product dual density of the present embodiment is disposably injection moulded production system, and basic structure is improved with embodiment 3 Place is: pressing mold vulcanization plant 3 further includes molding crossbeam 32, and the hydraulic stem of the die cylinder 31 passes through molding crossbeam 32 It is fixedly connected again with upper mold half 33 after pilot hole；The molding crossbeam 32 is fixed on the fixed frame of pressing mold vulcanization plant 3, is closed Mould crossbeam play positioning, guiding and stablize opening and closing mold triple role effect, and ensure that in turn leakproofness and vulcanization when Stability.

Pressing mold vulcanization plant 3 further includes die heater 38；The die heater 38 is set to the upper of upper mold half 33 The lower part in portion and lower mold half 34 makes sizing material keep stable sulfided state high-pressure aerated in sulfidation.

The rubber product dual density of the present embodiment is disposably injection moulded the production technology of production system, is applied to interior high outer The production of low dual density hollow rubber sole, step are as follows:

Step 1: low-density sizing material foams: material switches oil cylinder 27 and controls material switching conversion valve 29 for feed pipe two 261 are connected to pre-firing material-holding chamber 25；Continuous frothing machine 26 enters the low-density rubber after foaming by feed pipe 2 261 pre- Material-holding chamber 25 is penetrated, under the promotion of material, injection ram 221 is moved back to setting position；Quarter can be set on injection ram 221 Degree injects rubber material using quantity to determine；

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, in the case where molding 32 guiding role of crossbeam, upper half Mold 33 closes up with lower mold half；

Step 3: vacuumizing: vacuum evacuation station 41 is connected to by high-pressure air pipe 45, is started by starting Electrocontrolled tee valve door 42 Vacuum evacuation station 41, upper mold half 33 is with air in lower mold half 36 by air tube 47, high-pressure air pipe 45,41 rows of vacuum evacuation station Out, survival gas in mold is extracted out, and then guarantees injection, hollow and vulcanization effect；

Step 4: injection: opening injection head 28, start injection seat Shift cylinder 24, after the insertion molding of injection head 28 In upper mold half 33 and lower mold half 34, start injection cylinder 22, injection ram 221 moves forward, will be whole in pre-firing material-holding chamber 25 Low-density rubber injection mold in, after injection stand molding；

Step 5: high density rubber granule is plasticized: material switches oil cylinder 27 and controls material switching conversion valve 29 for feed pipe One 232 are connected to pre-firing material-holding chamber 25；Increase density rubber pellet by loading hopper 21 and enters plasticizing injection barrel 23, plasticizing note It penetrates and plasticizing high density rubber is entered into pre-firing material-holding chamber 25 while screw rod 231 rotates, under the promotion of material, injection ram 221 move back to setting position；At this point, volume of material is less than step 1, the i.e. position that moves back of injection ram 221 in pre-firing material-holding chamber 25 Setting will a little keep right compared to step 1；

Step 6: die sinking: starting die cylinder 31 moves up, and unlatching includes the upper of half of low-density stock rubber sole respectively Half mold 33 and lower mold half 34 start mold core rotational fuel tank 39, and mold core conversion support 37 extracts mold core 1 out, and will Mold core 2 36 is inserted at the center between upper mold half 33 and lower mold half 34；Under normal circumstances, mold core 2 36 Shape and mold core 1 are identical, but 2 36 volume of mold core is less than mold core 1；

Step 7: secondary mould closing: starting die cylinder 31 moves down, closure upper mold half 33 and lower mold half 34；

Step 8: biphasic injection: starting injection seat Shift cylinder 24, by the upper mold half 33 after the insertion molding of injection head 28 In lower mold half 34, start injection cylinder 22, injection ram 221 moves forward, and the low-density rubber in pre-firing material-holding chamber 25 is infused Enter in mold；

Step 9: mold core is moved back in die sinking: starting die cylinder 31 moves up, and opens upper mold half 33 and lower mold half 34, starting Mold core rotational fuel tank 39, is rotated by 90 °, and mold core conversion support 37 extracts mold core 2 36 out；

Step 10: molding three times: starting die cylinder 31 moves down, and will include the upper mold half 33 of half of rubber soles respectively Close up again with lower mold half 34, the hollow form after being removed inside rubber soles in mold core 2 36；

Step 11: high-pressure aerated: 42 energization conversion connection High-Pressure Compressor 44 of Electrocontrolled tee valve door and high pressure gas Pipe 45, and air tube 47 is connected after high pressure gas is heated by air heater 43 by high-pressure air pipe 45 and passes through high-pressure air pipe 45, air tube 47 enters upper mold half 33 and 36 inner cavity of lower mold half, is allowed to high-temperature and high-pressure conditions required for having vulcanization；

Step 12: vulcanization: upper mold half 33 and the dual-density sole of 34 inner cavity of lower mold half are vulcanized；Vulcanized Cheng Zhong, 38 continuous heating of die heater；

Step 13: pressure release: by the high temperature and high pressure gas pressure release of hollow inside, rubber soles when die sinking is avoided to burst；

Step 14: twice-die-opening: starting die cylinder 31 moves up, and opens upper mold half 33 and lower mold half 34, takes out Hollow low inside and high outside dual-density sole.

Embodiment 5

The rubber product dual density of the present embodiment is disposably injection moulded production system, and basic structure is improved with embodiment 4 Place is: it is fixed seat in the plane that pressing mold, which vulcanizes pedestal 5 together with pressing mold vulcanization plant 3 and hollow devices 4,；The injection machine base 1 together with injection device 2 is movable seat in the plane；The activity seat in the plane corresponds to multiple fixed seats in the plane, and past between each fixed seat in the plane Multiple movement, same injection device corresponds to multiple pressing mold vulcanization plants, in the sulfidation of rubber product, successively carries out different pressures The injection work of mould vulcanization plant, greatly improves work efficiency.

The rubber product dual density of the present embodiment is disposably injection moulded the production technology of production system, is applied to interior high outer The production of low dual density hollow rubber sole, step are as follows:

Step 1: low-density sizing material foams: material switches oil cylinder 27 and controls material switching conversion valve 29 for feed pipe two 261 are connected to pre-firing material-holding chamber 25；Continuous frothing machine 26 enters the low-density rubber after foaming by feed pipe 2 261 pre- Material-holding chamber 25 is penetrated, under the promotion of material, injection ram 221 is moved back to setting position；Quarter can be set on injection ram 221 Degree injects rubber material using quantity to determine；

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, in the case where molding 32 guiding role of crossbeam, upper half Mold 33 closes up with lower mold half；

Step 3: vacuumizing: vacuum evacuation station 41 is connected to by high-pressure air pipe 45, is started by starting Electrocontrolled tee valve door 42 Vacuum evacuation station 41, upper mold half 33 is with air in lower mold half 36 by air tube 47, high-pressure air pipe 45,41 rows of vacuum evacuation station Out, survival gas in mold is extracted out, and then guarantees injection, hollow and vulcanization effect；

Step 4: injection: opening injection head 28, start injection seat Shift cylinder 24, after the insertion molding of injection head 28 In upper mold half 33 and lower mold half 34, start injection cylinder 22, injection ram 221 moves forward, will be whole in pre-firing material-holding chamber 25 Low-density rubber injection mold in, after injection stand molding；

Step 5: high density rubber granule is plasticized: material switches oil cylinder 27 and controls material switching conversion valve 29 for feed pipe One 232 are connected to pre-firing material-holding chamber 25；Increase density rubber pellet by loading hopper 21 and enters plasticizing injection barrel 23, plasticizing note It penetrates and plasticizing high density rubber is entered into pre-firing material-holding chamber 25 while screw rod 231 rotates, under the promotion of material, injection ram 221 move back to setting position；At this point, volume of material is less than step 1, the i.e. position that moves back of injection ram 221 in pre-firing material-holding chamber 25 Setting will a little keep right compared to step 1；

Step 6: die sinking: starting die cylinder 31 moves up, and unlatching includes half of low-density stock rubber product 6 respectively Upper mold half 33 and lower mold half 34 are adjacent to upper mold half 33 and lower mold half 34 at this point, internal molding sizing material is divided into two Inner wall, start mold core rotational fuel tank 39, mold core conversion support 37 extracts 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；Under normal circumstances, in the shape and mold of mold core 2 36 Core 1 is identical, but 2 36 volume of mold core is less than mold core 1；

Step 7: secondary mould closing: starting die cylinder 31 moves down, closure upper mold half 33 and lower mold half 34；

Step 8: biphasic injection: starting injection seat Shift cylinder 24, by the upper mold half 33 after the insertion molding of injection head 28 In lower mold half 34, start injection cylinder 22, injection ram 221 moves forward, and the low-density rubber in pre-firing material-holding chamber 25 is infused Enter in mold；

Step 9: mold core is moved back in die sinking: starting die cylinder 31 moves up, and opens upper mold half 33 and lower mold half 34；Starting Mold core rotational fuel tank 39, is rotated by 90 °, and mold core conversion support 37 extracts mold core 2 36 out；

Step 10: molding three times: starting die cylinder 31 moves down, and will include the upper mold half of half of rubber product 6 respectively 33 close up again with lower mold half 34, the hollow form after removing inside rubber product in mold core 2 36；

Step 11: high-pressure aerated: 42 energization conversion connection High-Pressure Compressor 44 of Electrocontrolled tee valve door and high pressure gas Pipe 45, and air tube 47 is connected after high pressure gas is heated by air heater 43 by high-pressure air pipe 45 and passes through high-pressure air pipe 45, air tube 47 enters upper mold half 33 and 36 inner cavity of lower mold half, and the blowing pressure is 0.1MPa~0.3Mpa, according to different purposes Different the blowing pressures are arranged in sole, are allowed to high-temperature and high-pressure conditions required for having vulcanization；

Step 12: vulcanization: upper mold half 33 and the dual-density sole of 34 inner cavity of lower mold half are vulcanized；Vulcanized Cheng Zhong, 38 continuous heating of die heater；Curing temperature: 100-200 DEG C；Sulfide stress: 1.0~10MPa；

Step 13: pressure release: by the high temperature and high pressure gas pressure release of hollow inside, rubber soles when die sinking is avoided to burst；

Step 14: in sulfidation, it is dynamic that the moving machine displacement that machine base 1 is formed together with injection device 2 will telephone-moving: be injected By the fixation seat in the plane formed to next pressing mold vulcanization pedestal 5 together with pressing mold vulcanization plant 3 and hollow devices 4, step is repeated One to 13；

Step 15: twice-die-opening: starting die cylinder 31 moves up, and opens upper mold half 33 and lower mold half 34, takes out Hollow low inside and high outside dual-density sole.

Schematically the utility model and embodiments thereof are described above, description is not limiting, attached drawing Shown in be also one of the embodiments of the present invention, actual structure is not limited to this.So if this field Those of ordinary skill enlightened by it, without departing from the spirit of the invention, not inventively design with should The similar frame mode of technical solution and embodiment, all should belong to the protection range of the utility model.

Claims (7)

1. a kind of rubber product dual density is disposably injection moulded production system, which is characterized in that including injection machine base (1) and Pressing mold vulcanization pedestal (5) and the injection device (2) and pressing mold vulcanization plant (3) being individually fixed in the two, further include pressing mold Vulcanize the hollow devices (4) of pedestal (5) side, the pressing mold vulcanization plant (3) includes two moulds that shape is identical, specification is different Has inner core, two kinds of different plasticized rubber material of density are corresponded to different mold cores and are successively injected by the injection device (2) In the mold of pressing mold vulcanization plant (3), high pressure gas is passed through in the mold of pressing mold vulcanization plant (3) by the hollow devices (4) Plasticized rubber material in hollow cavity, the pressing mold vulcanization plant (3) carries out pressing mold and sulphur to the plasticized rubber material in mold Change；

The injection device (2) includes loading hopper (21), injection cylinder (22), plasticizing injection barrel (23), the mobile oil of injection seat Cylinder (24), pre-firing material-holding chamber (25), continuous frothing machine (26), material switching oil cylinder (27), injection head (28) and material switching turn Change valve (29)；The loading hopper (21) communicates with the beginning of plasticizing injection barrel (23), and plasticizing injection barrel (23) is fixed on Above the cylinder barrel of injection cylinder (22)；The discharge port of plasticizing injection barrel (23) and continuous frothing machine (26) passes through respectively to be sent Expects pipe one (232) and feed pipe two (261) are communicated with pre-firing material-holding chamber (25), material switching conversion valve (29) and material The alternation switch of feed pipe one (232) and feed pipe two (261) is controlled after the piston rod connection of switching oil cylinder (27)；The plasticizing Injection barrel (23), continuous frothing machine (26) and material switching oil cylinder (27) are both secured to pre-firing material-holding chamber (25) top, described In injection ram (221) insertion pre-firing material-holding chamber (25) in injection cylinder (22), the front end of the pre-firing material-holding chamber (25) is set It sets injection head (28), the mould gate of injection head (28) face pressing mold vulcanization plant (3)；The bottom of the pre-firing material-holding chamber (25) It is fixedly connected by fixed plate (20) with the piston rod of injection seat Shift cylinder (24)；The injection seat Shift cylinder (24) is fixed In in injection machine base (1)；The outer wall of plasticizing injection barrel (23) is coated with plasticizing heater (233).

2. rubber product dual density as described in claim 1 is disposably injection moulded production system, which is characterized in that the pressure Mould vulcanization plant (3) include die cylinder (31), upper mold half (33), lower mold half (34), mold core one (35), in mold Core two (36) and mold core rotational fuel tank (39)；The lower mold half (34) is fixed in pressing mold vulcanization pedestal (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 among 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 rubber product (6) Close setting；The mold core rotational fuel tank (39) is fixed in pressing mold vulcanization pedestal (5).

3. rubber product dual density as claimed in claim 2 is disposably injection moulded production system, which is characterized in that in described Empty device (4) includes vacuum evacuation station (41), High-Pressure Compressor (44), high-pressure air pipe (45) and air tube (47), the gas Needle (47) is uniformly distributed in upper mold half (33) and/or lower mold half (34), and is communicated therewith；The air tube (47) passes through height Air pipe (45) is communicated with vacuum evacuation station (41), High-Pressure Compressor (44) respectively.

4. rubber product dual density as claimed in claim 3 is disposably injection moulded production system, which is characterized in that in described Empty device (4) further includes Electrocontrolled tee valve door (42), air heater (43) and pipe fitting (46)；The High-Pressure Compressor (44) it after being passed through air heater (43) by tracheae, then connects with Electrocontrolled tee valve door (42), vacuum evacuation station (41) It is connected by tracheae and Electrocontrolled tee valve door (42), the high-pressure air pipe (45) and Electrocontrolled tee valve door (42) connection, San Zhefen It is not connected with three accesses of Electrocontrolled tee valve door (42)；The other end of the high-pressure air pipe (45) is gentle by pipe fitting (46) Needle (47) connection, the pipe fitting (46) are fixed on the fixed frame of pressing mold vulcanization pedestal (5).

5. rubber product dual density as claimed in claim 4 is disposably injection moulded production system, which is characterized in that the pressure Mould vulcanization plant (3) further includes molding crossbeam (32), and the hydraulic stem of the die cylinder (31) passes through leading for molding crossbeam (32) It is fixedly connected to Kong Houzai with upper mold half (33)；Molding crossbeam (32) is fixed on the fixed frame of pressing mold vulcanization plant (3) On.

6. rubber product dual density as claimed in claim 4 is disposably injection moulded production system, which is characterized in that the pressure Mould vulcanization plant (3) further includes die heater (38)；The die heater (38) is set to the top of upper mold half (33) The lower part of lower mold half (34) and/or.

7. a kind of rubber product dual density as claimed in claim 6 is disposably injection moulded production system, which is characterized in that institute It is fixed seat in the plane that pressing mold vulcanization pedestal (5), which is stated, together with pressing mold vulcanization plant (3) and hollow devices (4)；The injection machine base It (1) is movable seat in the plane together with injection device (2)；The activity seat in the plane corresponds to multiple fixed seats in the plane, and each fixed seat in the plane it Between move back and forth.