CN103057061A - Device and method for efficient mixed microcellular foaming plastic precise injection molding - Google Patents
Device and method for efficient mixed microcellular foaming plastic precise injection molding Download PDFInfo
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Abstract
The invention discloses a device and a method for efficient mixed microcellular foaming plastic precise injection molding. The device comprises a plasticization unit, a supercutical fluid transportation unit, a mixing unit, an injection unit and a mold unit, wherein the plasticization unit, the mixing unit and the injection unit are sequentially connected, the supercutical fluid transportation unit is connected with the mixing unit, and the mold unit is arranged at the output tail end of the injection unit. The method includes that materials are melted by means of the plasticization unit and transported to the mixing unit, and meanwhile the supercutical fluid transportation unit pipes supercutical fluids into the mixing unit; by means of the continuous mixing effect of the mixing unit in a molding complete period, the supercutical fluids are mixed with the melted materials to form a gas/melt one-phase system with high gas content and uniform scattering; and then precise quantification of the injection unit is achieved and injected into the mold unit to prepare microcellular foaming plastics. The device and the method have the advantages of being wide in material adaptability, high in mixing efficiency, high in gas content, accurate and controllable in injection quantity, and low in production cost.
Description
Technical field
The present invention relates to the microcellular plastics forming technique, particularly a kind of efficient mixing microcellular plastics precise injection molding apparatus and method.
Background technology
Cellular plastic refers to cell diameter at 0.1-10 μ m, and cell density is 10
9-10
15Individual/cm
3Novel foam material.In view of the goods of the moulding such as traditional blowing agent such as fluorochlorohydrocarbon class need postorder to process to remove residue, and technique is unstable, in the last few years, supercritical fluid relies on its no solvent residue, viscosity is low, diffusion coefficient is large, nontoxic, do not fire, chemical inertness, the distinct advantages such as free from environmental pollution become the very good substitute products of traditional blowing agent.Yet, how supercritical fluid aerating powder is quantitatively added injector, and how to make it to reach efficiently the single-phase state of gas/melt and realize precise injection, remain the development of restriction supercritical fluid microcellular injection molding and the subject matter of using.
For this reason, the patent No. is that the Chinese utility model patent of ZL 200620131890.0 discloses a kind of little foaming double-cylinder injection machine, this equipment comprises plasticizing extrusion device and plasticizing injecting device, at plasticizing extrusion device front end liquid gas injection device is set, material enters in the injector by the extruder discharging mouth, injects the mould molding microporous article through injection screw again.Compare with common single-order foam-injection machine, this device adopts two stage structures, mainly is to increase blowing agent and the incorporation time of polymer melt in screw rod by the second-order screw rod that configures, and improves the molten mixed effect of gas.The patent No. is that the Canadian patent of invention of CA 2480025 discloses a kind of microporous foam injection device, and this equipment adopts two stage structures, will plastify to mix and separate with injection process, realizes the precision control of injection volume by the second-order plunger rod of configuration.
Above-mentioned patent in actual use, second-order screw rod or plunger rod front end storing are finished constantly to the time period of injection filling mould between the moment, the gas melt system that its front end stores is in static dead state, thereby is not to continue in the moulding complete period to mix, and mixed effect is limited.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, but provide a kind of injection-expansion molded complete period to continue the efficient mixing microcellular plastics precise injection molding device that mixing is not stagnated, gas melts good mixing effect Effective Raise foaming product performance.
Another object of the present invention is to provide a kind of efficient mixing microcellular plastics precise injection molding method that realizes by said apparatus.
Technical scheme of the present invention is: a kind of efficient mixing microcellular plastics precise injection molding device, comprise plasticization unit, supercritical fluid delivery unit, mixed cell, injecting unit and die unit, plasticization unit, mixed cell are connected with injecting unit and are connected, the supercritical fluid delivery unit is connected with mixed cell, and die unit is located at the output end of injecting unit; Mixed cell is connected with plasticization unit by the first controlled melt-stoichiometry valve, and mixed cell is connected with injecting unit by the second controlled melt-stoichiometry valve.
Described plasticization unit is the reciprocating type injection device of screw rod, comprise plasticized screw, plasticizing charging barrel, hopper and actuating unit, plasticized screw is located in the plasticizing charging barrel, hopper is located at the feed end of plasticized screw, plasticized screw one end is connected with actuating unit, and the discharge end of plasticized screw is connected with mixed cell by the first controlled melt-stoichiometry valve; The joint of the discharge end of plasticized screw and the first controlled melt-stoichiometry valve also is provided with porous plate.Wherein, actuating unit is used for driving plasticized screw work, after material enters in the plasticizing charging barrel from hopper, along with the rotation of plasticized screw plastifies, form melt, be delivered to simultaneously mixed cell, the first controlled melt-stoichiometry valve is used for the melt amount that control enters mixed cell.
Described shooting flow body unit comprises gas bomb, Pressure gauge, coolant circulation pump, high-pressure metering pump and high-pressure solenoid valve, gas bomb, Pressure gauge, coolant circulation pump, high-pressure metering pump and high-pressure solenoid valve are connected gas pipeline and are connected successively, and the port of export of gas pipeline is connected with mixed cell; The port of export of gas pipeline also is provided with unidirectional gas injection valve, and the gas pipeline between Pressure gauge and the coolant circulation pump is provided with high pressure valve.
Mixed cell can have following two kinds of versions:
(1) described mixed cell comprises motor, mixes axle and sealing axle sleeve, motor is located at and is mixed axle one end, mix and be located in the sealing axle sleeve, the feed end that mixes axle is connected with plasticization unit by the first controlled melt-stoichiometry valve, and the discharge end that mixes axle is connected with injecting unit by the second controlled melt-stoichiometry valve; Mixing axle is the peg type of hollow or the mixing axle of other mixed structures, and the port of export of gas pipeline is connected with the mixing axle.
Described mixing axle middle part is cavity structure, is distributed with a plurality of pores on the axial wall of mixing axle; The space of mixing between axle and the sealing axle sleeve is hybrid chamber; The cavity structure that mixes the axle middle part communicates with gas pipeline, and each pore is communicated with cavity structure and the hybrid chamber that mixes the axle middle part on the axial wall.Mix axle and can under the drive of motor, carry out single direction rotation or reciprocating rotary, thereby realize fast the efficient mixing of the molten mixture of gas.The rapidly and efficiently melange effect that mixes axle can improve device to the flexibility (adaptability) of operation of the low material of gas transmission rate.
In the mixed cell of this structure, pore opening and the quantity of mixing on the axle axial wall can design according to supercritical fluid flow, pressure and the melt kind that reality is used.Melt from plasticization unit enters hybrid chamber by the first controlled melt-stoichiometry valve, supercritical fluid from the supercritical fluid delivery unit enters in the cavity that mixes the axle middle part, pore from the axial wall enters hybrid chamber again, along with the rotation that mixes axle, supercritical fluid mixes formation gas/melt single_phase system with melt in hybrid chamber, be delivered to simultaneously injecting unit.The second controlled melt-stoichiometry valve is used for the consumption of the gas that control enters injecting unit/melt single_phase system.
(2) described mixed cell comprises motor, mixes axle and air inlet cover, motor is located at and is mixed axle one end, mix and be located in the air inlet cover, the feed end that mixes axle is connected with plasticization unit by the first controlled melt-stoichiometry valve, and the discharge end that mixes axle is connected with injecting unit by the second controlled melt-stoichiometry valve; The port of export of gas pipeline is connected with the air inlet cover.
Described air inlet puts and is provided with a plurality of pores, and each pore is connected with the port of export of gas pipeline, and the air inlet cover is hybrid chamber with the space of mixing between the axle.
In the mixed cell of this structure, the size and number that air inlet puts pore can design according to supercritical fluid flow, pressure and the melt kind that reality is used.The inner confined space that forms of air inlet cover mixes axle and then adopts the mixing axle of common peg type or other mixed structures to get final product.Melt from plasticization unit enters hybrid chamber by the first controlled melt-stoichiometry valve, supercritical fluid from the supercritical fluid delivery unit enters hybrid chamber by each pore, along with the rotation that mixes axle, supercritical fluid mixes the high gas content of formation and finely dispersed gas/melt single_phase system with melt in hybrid chamber, be delivered to simultaneously injecting unit.The second controlled melt-stoichiometry valve is used for the consumption of the gas that control enters injecting unit/melt single_phase system.
Described injecting unit comprises oil cylinder, plunger, heating cylinder, barrel liner and injection nozzle, and oil cylinder and injection nozzle are located at respectively the two ends of heating cylinder, and plunger is located in the heating cylinder, and the barrel liner is located at the end that the heating cylinder liner is connected with injection nozzle; The injection nozzle top is connected with mixed cell by the second controlled melt-stoichiometry valve, and the port of export of injection nozzle is connected with die unit.
Described injection nozzle is controllable on-off nozzle.
Described die unit can adopt the mechanisms such as hydraulic-machinery formula locked mode, can adapt to various mould moldings.
The present invention realizes a kind of efficient mixing microcellular plastics precise injection molding method by said apparatus, utilizes plasticization unit that material is carried out fusion plastification and is delivered to mixed cell, and the supercritical fluid delivery unit passes into supercritical fluid to mixed cell simultaneously; Utilize the immixture that continue of mixed cell within the moulding complete period, so that the mixing of materials of supercritical fluid and melting forms high gas content and finely dispersed gas/melt single_phase system; After gas/the melt single_phase system is delivered to injecting unit, be expelled in the die unit by the injecting unit accurate quantification, make microcellular plastics.
The present invention has following beneficial effect with respect to prior art:
This efficient microcellular plastics precise injection molding device that mixes is by configuration mixed cell and supercritical fluid delivery unit between common screw injector and plunger type injector, under mixed process is accurately controlled, realizing producing interior supercritical fluid aerating powder of complete period efficiently mixes with the lasting of polymer melt, thereby the gas content in the molten mixture of Effective Raise gas, and realize the Uniform Dispersion of gas in melt, finally improve the performance of microporous foam goods.Simultaneously, the forming method by this device and realization thereof carries out the microporous foam product molding and adds man-hour, and material wide adaptability, injection volume are accurately controlled, and production cost is low.
Description of drawings
Fig. 1 is the structural representation of the efficient mixing microcellular plastics precise injection molding device of embodiment 1.
Fig. 2 is the cutaway view after the local amplification of F among Fig. 1.
Fig. 3 is the structural representation of the efficient mixing microcellular plastics precise injection molding device of embodiment 2.
Fig. 4 is the cutaway view after the local amplification of G among Fig. 1.
The structural representation of Fig. 5 injecting unit.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
Embodiment 1
A kind of efficient mixing microcellular plastics precise injection molding device of the present embodiment, its structure as shown in Figure 1, comprise plasticization unit A, supercritical fluid delivery unit B, mixed cell C, injecting unit D and die unit E, plasticization unit, mixed cell are connected with injecting unit and are connected, the supercritical fluid delivery unit is connected with mixed cell, and die unit is located at the output end of injecting unit; Mixed cell is connected with plasticization unit by the first controlled melt-stoichiometry valve 1, and mixed cell is connected with injecting unit by the second controlled melt-stoichiometry valve 2.
Wherein, plasticization unit A is the reciprocating type injection device of screw rod, comprise plasticized screw 3, plasticizing charging barrel 4, hopper 5 and actuating unit 6, plasticized screw is located in the plasticizing charging barrel, hopper is located at the feed end of plasticized screw, plasticized screw one end is connected with actuating unit, and the discharge end of plasticized screw is connected with mixed cell by the first controlled melt-stoichiometry valve; The joint of the discharge end of plasticized screw and the first controlled melt-stoichiometry valve also is provided with porous plate 22.Wherein, actuating unit is used for driving plasticized screw work, after material enters in the plasticizing charging barrel from hopper, along with the rotation of plasticized screw plastifies, form melt, be delivered to simultaneously mixed cell, the first controlled melt-stoichiometry valve is used for the melt amount that control enters mixed cell.
The supercritical fluid unit B comprises gas bomb 7, Pressure gauge 8, coolant circulation pump 10, high-pressure metering pump 11 and high-pressure solenoid valve 12, gas bomb, Pressure gauge, coolant circulation pump, high-pressure metering pump and high-pressure solenoid valve are connected gas pipeline and are connected successively, and the port of export of gas pipeline is connected with mixed cell; The port of export of gas pipeline also is provided with unidirectional gas injection valve 13, and the gas pipeline between Pressure gauge and the coolant circulation pump is provided with high pressure valve 9.
Mixed cell C comprises motor 14, mixes axle 15 and sealing axle sleeve 16, motor is located at and is mixed axle one end, mix and be located in the sealing axle sleeve, the feed end that mixes axle is connected with plasticization unit by the first controlled melt-stoichiometry valve, and the discharge end that mixes axle is connected with injecting unit by the second controlled melt-stoichiometry valve; Mixing axle is the peg type of hollow or the mixing axle of other mixed structures, and the port of export of gas pipeline is connected with the mixing axle.
As shown in Figure 2, mixing axle 15 middle parts is cavity structure, is distributed with a plurality of pores 24 on the axial wall of mixing axle; The space of mixing between axle and the sealing axle sleeve is hybrid chamber; The cavity structure that mixes the axle middle part communicates with gas pipeline, and each pore is communicated with cavity structure and the hybrid chamber that mixes the axle middle part on the axial wall.
In the mixed cell of this structure, pore opening and the quantity of mixing on the axle axial wall can design according to supercritical fluid flow, pressure and the melt kind that reality is used.Melt from plasticization unit enters hybrid chamber by the first controlled melt-stoichiometry valve, supercritical fluid from the supercritical fluid delivery unit enters in the cavity that mixes the axle middle part, pore from the axial wall enters hybrid chamber again, along with the rotation that mixes axle, supercritical fluid mixes formation gas/melt single_phase system with melt in hybrid chamber, be delivered to simultaneously injecting unit.The second controlled melt-stoichiometry valve is used for the consumption of the gas that control enters injecting unit/melt single_phase system.
As shown in Figure 5, injecting unit D comprises oil cylinder 17, plunger 18, heating cylinder 19, barrel liner 20 and injection nozzle 21, oil cylinder and injection nozzle are located at respectively the two ends of heating cylinder, and plunger is located in the heating cylinder, and the barrel liner is located at the end that the heating cylinder liner is connected with injection nozzle; The injection nozzle top is connected with mixed cell by the second controlled melt-stoichiometry valve, and the port of export of injection nozzle is connected with die unit.
Injection nozzle is controllable on-off nozzle.
Die unit E can adopt hydraulic-machinery formula clamping mechanism, can adapt to various mould moldings.
The present embodiment can be realized a kind of efficient mixing microcellular plastics precise injection molding method by said apparatus, utilize plasticization unit that material is carried out fusion plastification and is delivered to mixed cell, the supercritical fluid delivery unit passes into supercritical fluid to mixed cell simultaneously; Utilize the immixture that continue of mixed cell within the moulding complete period, so that the mixing of materials of supercritical fluid and melting forms high gas content and finely dispersed gas/melt single_phase system; After gas/the melt single_phase system is delivered to injecting unit, be expelled in the die unit by the injecting unit accurate quantification, make microcellular plastics.
Its detailed process is: material is entered in the plasticizing charging barrel of plasticization unit by hopper, material is sheared plasticizing through plasticized screw and is piled up to the plasticized screw front end, plasticized screw backs away, when the preformed amount reaches predetermined value, plasticized screw stops operating, this moment first, controlled melt-stoichiometry valve was opened, and fused materials is entered mixed cell by porous plate and the first controlled melt-stoichiometry valve by the fast quantification injection.When the first controlled melt-stoichiometry valve is opened, motor in the mixed cell begins rotation, high-pressure solenoid valve in the supercritical fluid delivery unit is opened, supercritical fluid is injected in the cavity that mixes the axle middle part via high-pressure solenoid valve through unidirectional gas injection valve, and the pore on mixing the axle axial wall overflows (specifically shown in the arrow Fig. 2) and contacts with melt, and mixes under the effect of mixing axle.After melt was entered mixed cell by calibrated shot, the first controlled melt-stoichiometry valve cut out, and motor is rotated further, and melt and supercritical fluid are mixed, and the plasticized screw in the plasticization unit begins to carry out the preplasticizing action second time simultaneously.When plasticization unit plastifies when finishing for the second time, form gas/melt single_phase system in the mixed cell, this moment, the first controlled melt-stoichiometry valve and the second controlled melt-stoichiometry valve were opened simultaneously, plasticized screw carries out the fast injection action, the molten mixture of gas that will reach single-phase state is injected in the injecting unit by the second controlled melt-stoichiometry valve, and second batch preplasticizing melt is injected into equally and carries out in the mixed cell that gas is molten to be mixed, this moment is along with gas/melt single_phase system enters the heating cylinder of injecting unit, the plunger Fast synchronization retreats, when retreating into predetermined value, plunger stops to retreat, the first controlled melt-stoichiometry valve and the second controlled melt-stoichiometry valve are closed simultaneously, oil cylinder drives plunger and advances fast, the molten mixture of gas is injected die unit, through cooling, obtain goods after the typing.When plunger was carried out action of injection, supercritical fluid ceaselessly was injected into the mixing axle, mixed axle and ceaselessly mixed, and the plasticized screw in the plasticization unit then carries out another preplasticizing action simultaneously.
A kind of efficient mixing microcellular plastics precise injection molding device of the present embodiment is compared with embodiment 1, and its difference is that the specific constructive form of mixed cell is different.
As shown in Figure 3, mixed cell comprises motor 14, mixes axle 15 and air inlet cover 23, motor is located at and is mixed axle one end, mix and be located in the air inlet cover, the feed end that mixes axle is connected with plasticization unit by the first controlled melt-stoichiometry valve, and the discharge end that mixes axle is connected with injecting unit by the second controlled melt-stoichiometry valve; The port of export of gas pipeline is connected with the air inlet cover.
As shown in Figure 4, air inlet cover 23 is provided with a plurality of pores 24, and each pore is connected with the port of export of gas pipeline, and the air inlet cover is hybrid chamber with the space of mixing between the axle.
In the mixed cell of this structure, the size and number that air inlet puts pore can design according to supercritical fluid flow, pressure and the melt kind that reality is used.The inner confined space that forms of air inlet cover mixes axle and then adopts the mixing axle of common peg type or other mixed structures to get final product.Melt from plasticization unit enters hybrid chamber by the first controlled melt-stoichiometry valve, supercritical fluid from the supercritical fluid delivery unit enters hybrid chamber by each pore, along with the rotation that mixes axle, supercritical fluid mixes formation gas/melt single_phase system with melt in hybrid chamber, be delivered to simultaneously injecting unit.The second controlled melt-stoichiometry valve is used for the consumption of the gas that control enters injecting unit/melt single_phase system.
The present embodiment can be realized a kind of efficient mixing microcellular plastics precise injection molding method by said apparatus, utilize plasticization unit that material is carried out fusion plastification and is delivered to mixed cell, the supercritical fluid delivery unit passes into supercritical fluid to mixed cell simultaneously; Utilize the immixture that continue of mixed cell within the moulding complete period, so that the mixing of materials of supercritical fluid and melting forms high gas content and finely dispersed gas/melt single_phase system; After gas/the melt single_phase system is delivered to injecting unit, be expelled in the die unit by the injecting unit accurate quantification, make microcellular plastics.
Its detailed process is: material is entered in the plasticizing charging barrel of plasticization unit by hopper, material is sheared plasticizing through plasticized screw and is piled up to the plasticized screw front end, plasticized screw backs away, when the preformed amount reaches predetermined value, plasticized screw stops operating, this moment first, controlled melt-stoichiometry valve was opened, and fused materials is entered mixed cell by porous plate and the first controlled melt-stoichiometry valve by the fast quantification injection.When the first controlled melt-stoichiometry valve is opened, motor in the mixed cell begins rotation, in the supercritical fluid delivery unit, each high-pressure solenoid valve of being located on the gas pipeline that is connected with the air inlet cover is opened, supercritical fluid is via the unidirectional gas injection valve (not shown) of high-pressure solenoid valve process, be injected in the hybrid chamber by each pore of air inlet cover and contact with melt, and under the effect of mixing axle, mix.After melt was entered mixed cell by calibrated shot, the first controlled melt-stoichiometry valve cut out, and motor is rotated further, and melt and supercritical fluid are mixed, and the plasticized screw in the plasticization unit begins to carry out the preplasticizing action second time simultaneously.When plasticization unit plastifies when finishing for the second time, form gas/melt single_phase system in the mixed cell, this moment, the first controlled melt-stoichiometry valve and the second controlled melt-stoichiometry valve were opened simultaneously, plasticized screw carries out the fast injection action, the molten mixture of gas that will reach single-phase state is injected in the injecting unit by the second controlled melt-stoichiometry valve, and second batch preplasticizing melt is expelled to gradually equally and is carried out in the mixed cell that gas is molten to be mixed, this moment is along with gas/melt single_phase system enters the heating cylinder of injecting unit, the plunger Fast synchronization retreats, when retreating into predetermined value, plunger stops to retreat, the first controlled melt-stoichiometry valve and the second controlled melt-stoichiometry valve are closed simultaneously, oil cylinder drives plunger and advances fast, the molten mixture of gas is injected die unit, through cooling, obtain goods after the typing.When plunger was carried out action of injection, supercritical fluid ceaselessly was injected into hybrid chamber, mixed axle and ceaselessly mixed, and the plasticized screw in the plasticization unit then carries out another preplasticizing action simultaneously.
As mentioned above, just can realize preferably the present invention, above-described embodiment is preferred embodiment of the present invention only, is not to limit practical range of the present invention; Be that all equalizations of doing according to content of the present invention change and modification, all contained by claim of the present invention scope required for protection.
Claims (10)
1. efficiently mix microcellular plastics precise injection molding device, it is characterized in that, comprise plasticization unit, supercritical fluid delivery unit, mixed cell, injecting unit and die unit, plasticization unit, mixed cell are connected with injecting unit and are connected, the supercritical fluid delivery unit is connected with mixed cell, and die unit is located at the output end of injecting unit; Mixed cell is connected with plasticization unit by the first controlled melt-stoichiometry valve, and mixed cell is connected with injecting unit by the second controlled melt-stoichiometry valve.
2. efficient mixing microcellular plastics precise injection molding device according to claim 1, it is characterized in that, described plasticization unit is the reciprocating type injection device of screw rod, comprise plasticized screw, plasticizing charging barrel, hopper and actuating unit, plasticized screw is located in the plasticizing charging barrel, hopper is located at the feed end of plasticized screw, and plasticized screw one end is connected with actuating unit, and the discharge end of plasticized screw is connected with mixed cell by the first controlled melt-stoichiometry valve; The joint of the discharge end of plasticized screw and the first controlled melt-stoichiometry valve also is provided with porous plate.
3. efficient mixing microcellular plastics precise injection molding device according to claim 1, it is characterized in that, described shooting flow body unit comprises gas bomb, Pressure gauge, coolant circulation pump, high-pressure metering pump and high-pressure solenoid valve, gas bomb, Pressure gauge, coolant circulation pump, high-pressure metering pump and high-pressure solenoid valve are connected gas pipeline and are connected successively, and the port of export of gas pipeline is connected with mixed cell; The port of export of gas pipeline also is provided with unidirectional gas injection valve, and the gas pipeline between Pressure gauge and the coolant circulation pump is provided with high pressure valve.
4. efficient mixing microcellular plastics precise injection molding device according to claim 3, it is characterized in that, described mixed cell comprises motor, mixes axle and sealing axle sleeve, motor is located at and is mixed axle one end, mix and be located in the sealing axle sleeve, the feed end that mixes axle is connected with plasticization unit by the first controlled melt-stoichiometry valve, and the discharge end that mixes axle is connected with injecting unit by the second controlled melt-stoichiometry valve; Mixing axle is the peg type mixing axle of hollow, and the port of export of gas pipeline is connected with the mixing axle.
5. efficient mixing microcellular plastics precise injection molding device according to claim 4 is characterized in that, described mixing axle middle part is cavity structure, is distributed with a plurality of pores on the axial wall of mixing axle; The space of mixing between axle and the sealing axle sleeve is hybrid chamber; The cavity structure that mixes the axle middle part communicates with gas pipeline, and each pore is communicated with cavity structure and the hybrid chamber that mixes the axle middle part on the axial wall.
6. efficient mixing microcellular plastics precise injection molding device according to claim 3, it is characterized in that, described mixed cell comprises motor, mixes axle and air inlet cover, motor is located at and is mixed axle one end, mix and be located in the air inlet cover, the feed end that mixes axle is connected with plasticization unit by the first controlled melt-stoichiometry valve, and the discharge end that mixes axle is connected with injecting unit by the second controlled melt-stoichiometry valve; The port of export of gas pipeline is connected with the air inlet cover.
7. efficient mixing microcellular plastics precise injection molding device according to claim 6 is characterized in that, described air inlet puts and is provided with a plurality of pores, and each pore is connected with the port of export of gas pipeline, and the air inlet cover is hybrid chamber with the space of mixing between the axle.
8. efficient mixing microcellular plastics precise injection molding device according to claim 1, it is characterized in that, described injecting unit comprises oil cylinder, plunger, heating cylinder, barrel liner and injection nozzle, oil cylinder and injection nozzle are located at respectively the two ends of heating cylinder, plunger is located in the heating cylinder, and the barrel liner is located at the end that the heating cylinder liner is connected with injection nozzle; The injection nozzle top is connected with mixed cell by the second controlled melt-stoichiometry valve, and the port of export of injection nozzle is connected with die unit.
9. efficient mixing microcellular plastics precise injection molding device according to claim 8 is characterized in that, described injection nozzle is controllable on-off nozzle.
10. each described device is realized a kind of efficient mixing microcellular plastics precise injection molding method according to claim 1 ~ 9, it is characterized in that, utilize plasticization unit that material is carried out fusion plastification and is delivered to mixed cell, the supercritical fluid delivery unit passes into supercritical fluid to mixed cell simultaneously; Utilize the immixture that continue of mixed cell within the moulding complete period, so that the mixing of materials of supercritical fluid and melting forms high gas content and finely dispersed gas/melt single_phase system; After gas/the melt single_phase system is sent into injecting unit, be expelled in the die unit by the injecting unit accurate quantification, make microcellular plastics.
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Cited By (8)
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86105207A (en) * | 1985-07-24 | 1987-08-05 | 积水化成品工业株式会社 | Produce the method and apparatus of foamed thermoplastic material |
| CN1919578A (en) * | 2006-09-11 | 2007-02-28 | 华南理工大学 | Supercritical fluid assistant micropore injection moulding apparatus |
| JP2007111997A (en) * | 2005-10-20 | 2007-05-10 | Waizu:Kk | Injection device |
| CN201279881Y (en) * | 2008-10-16 | 2009-07-29 | 吉林大学珠海学院 | Micropore injection mould apparatus |
| CN101612773A (en) * | 2009-07-24 | 2009-12-30 | 北京化工大学 | Discontinuous foaming agent control lead-in system and method |
| CN102658638A (en) * | 2012-05-02 | 2012-09-12 | 上海通号轨道交通工程技术研究中心有限公司 | Fluoroplastic foaming extruder set |
| CN203157068U (en) * | 2012-12-20 | 2013-08-28 | 华南理工大学 | High-efficiency mixing microporous foamed plastic precise injection forming device |
-
2012
- 2012-12-20 CN CN201210559967.4A patent/CN103057061B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86105207A (en) * | 1985-07-24 | 1987-08-05 | 积水化成品工业株式会社 | Produce the method and apparatus of foamed thermoplastic material |
| JP2007111997A (en) * | 2005-10-20 | 2007-05-10 | Waizu:Kk | Injection device |
| CN1919578A (en) * | 2006-09-11 | 2007-02-28 | 华南理工大学 | Supercritical fluid assistant micropore injection moulding apparatus |
| CN201279881Y (en) * | 2008-10-16 | 2009-07-29 | 吉林大学珠海学院 | Micropore injection mould apparatus |
| CN101612773A (en) * | 2009-07-24 | 2009-12-30 | 北京化工大学 | Discontinuous foaming agent control lead-in system and method |
| CN102658638A (en) * | 2012-05-02 | 2012-09-12 | 上海通号轨道交通工程技术研究中心有限公司 | Fluoroplastic foaming extruder set |
| CN203157068U (en) * | 2012-12-20 | 2013-08-28 | 华南理工大学 | High-efficiency mixing microporous foamed plastic precise injection forming device |
Non-Patent Citations (3)
| Title |
|---|
| 华东化工学院等: "《玻璃钢机械与设备》", 31 July 1981, 中国建筑工业出版社 * |
| 孙阳等: "微孔塑料的注射成型研究进展", 《塑料》 * |
| 杨经涛等: "《发泡塑料制品与加工》", 31 July 2012, 化学工业出版社 * |
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| CN105457093A (en) * | 2015-12-17 | 2016-04-06 | 华南理工大学 | Method for producing a polymer porous support in batch |
| US20180345546A1 (en) * | 2017-06-05 | 2018-12-06 | Otrajet Inc. | Mechanism for mixing supercritical fluid and polymer raw material melt |
| US10913189B2 (en) * | 2017-06-05 | 2021-02-09 | Otrajet Inc. | Mechanism for mixing supercritical fluid and polymer raw material melt |
| CN109016315A (en) * | 2017-06-12 | 2018-12-18 | 欧特捷实业股份有限公司 | The mixed organization of supercritical fluid and macromolecule raw material melt |
| JP2021062611A (en) * | 2019-10-15 | 2021-04-22 | オトラジェット インコーポレイテッド． | Extruding system and method of extruding |
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| CN112776246B (en) * | 2019-11-11 | 2023-01-17 | 株式会社沙迪克 | Injection device and gas dissolving method for injection device |
| TWI794753B (en) * | 2021-02-26 | 2023-03-01 | 田文森 | Supercritical fluid material injection molding machine and method thereof |
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