CN101954698A - Mixing and injecting combined device and use method thereof - Google Patents
Mixing and injecting combined device and use method thereof Download PDFInfo
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- CN101954698A CN101954698A CN2009101501872A CN200910150187A CN101954698A CN 101954698 A CN101954698 A CN 101954698A CN 2009101501872 A CN2009101501872 A CN 2009101501872A CN 200910150187 A CN200910150187 A CN 200910150187A CN 101954698 A CN101954698 A CN 101954698A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/67—Screws having incorporated mixing devices not provided for in groups B29C48/52 - B29C48/66
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Abstract
The invention relates to a mixing and injecting combined device and a use method thereof. The device comprises a mixing and extruding unit, a distributing unit and a die unit, wherein the mixing and extruding unit comprises a feeding section, an extruding section, a melting section, a mixing section, a cooling section and an injecting section; and the distributing unit is provided with at least one distributing duct which is provided with a valve control outlet connected with an inlet of the die unit. The method mainly comprises the following steps of: firstly, filling the feeding section with a macromolecular material; respectively extruding and melting the filled macromolecular material, mixing with a physical foaming agent, cooling, and the like; and injecting the macromolecular mixture into the distributing unit through the injecting section; then, opening the valve control outlet so that the macromolecular material mixture enters and fills the interior of the die unit; and demolding to obtain a high-foamed product.
Description
Technical field
The present invention is that relevant a kind of height of making is foamed into the device of product and uses described device to make the method that height is foamed into product, especially refer to a kind ofly to utilize melting, mix, cooling and delicate metering one-shot forming, need not pass through the granulation processing procedure, and can at a high speed and effectively prepare high foamed products, and can avoid because of producing the foaming dead angle or squeezing injection device and using method thereof because of two-in-one the mixing of the inhomogeneous foamed products flaw that causes that foams.
Background technology
Have now aspect the high foamed products of manufacturing, normally utilize the material of inflatable plastic resin, for example polystyrene (polystyrene, PS), polyolefin (polyolefin, PO), polyethylene (polyethylene, PE) or polypropylene TPOs such as (polypropylene, PP).Its goods after foaming are the Poly dragon, but range of application then is mainly disposable product, for example disposable utensils, bubble noodle bowl, cold drink cup, fender or packing timber.These processing procedures all must be carried out through pre-expandable microspheres side.
The tradition shooting foaming is to utilize the cracking temperature of blowing agent that CBA is had an effect, yet often because of too much blowing agent can't play a role, and cause the wasting of resources and environmental pollution.In addition, the expansion ratio of traditional shooting foaming is also lower, and the accessible foaming effect of institute is also comparatively undesirable.
Following patent case then is to disclose the method person who makes high foamed products relevant for existing, with reference now.
(1), the TaiWan, China patent gazette announces I269298 patent case: disclose a kind of extruder blowdown that earlier material prescription mixed later that utilizes and making the bubble pearl through suitable pressure regulation pressure release to the foaming groove of tool high pressure, this method must can get high foamed products through the processing procedure of bubble pearl granulation.
(2), the TaiWan, China patent gazette is announced the patent case No. 00203072: disclose a kind of expandable thermoplasticity microballon and preparation and using method, it is a kind of method for preparing the expandable thermoplastic microballon, in the presence of the condensation propellant, the polymerization in reactor with ethene unsaturation monomer in aqueous medium or monomer mixture.
(3), the TaiWan, China patent gazette is announced the patent case No. 00418227: it is to disclose a kind of foaminess microballon and method for making thereof, illustrate relevant a kind of foaminess microballon, it is to enclose to have in the foaminess microballon of blowing agent in a shell by chlorination time ethylenic copolymer or the formed resin of (methyl) propylene hydrocarbon copolymer, it is characterized by average grain diameter 3～100 μ m, and the change that particle diameter distributes is that number is below 1.50% and the method for making that relies on the foaminess microballon of outstanding turbid polymerization.
(4), the TaiWan, China patent gazette is announced the patent case No. 00466101: it is to disclose a kind of microcapsule preparation method that contains agriculture active material, being particularly useful in the poly-urea microcapsules that blade applies is with a kind of interfacial polymerization program preparation, wherein poly-urea is to have 3 or the random polyisocyanate salt of polyisocyanic acid salt more by an aromatic series diisocyanate and, with approximately by 1: 100 to 1: 15 polyisocyanate salt: diisocyanate weight ratio (when having diisocyanate) preparation, and the microcapsules of generation wherein have one and are about 1 to 5 micron average grain diameter.
(5), the TaiWan, China patent gazette is announced the patent case No. 00575459: it is the method that discloses a kind of microencapsulation of solid matter, a kind of method of microencapsulation of biologically active solid material, be included in and contain i) contain in the dispersion liquid of the solution of nonionic material and the ii) insoluble or biologically active solid material of indissoluble in described solution, monomer that will the polymerization by means of condensation gives polymerization.Wherein the biologically active solid material is the agricultural chemicals material; wherein the nonionic material is to have the material that can form protective colloid, at least a person that the colony that forms for polyvinyl alcohol, cellulose ether and ester, poly-alkane glycol, polyvinyl pyrrolidone and starch selects.Monomer uses the monomer of melmac or urea resin.It is to adopt polymerization methods to prepare microballon.
(6), the TaiWan, China patent gazette is announced the patent case No. 200401016: it is to disclose a kind of microencapsulation heat absorption particle, a kind of microencapsulation heat absorption particle, it is to store concurrent heat dissipation capacity easily, and the heat absorption particle can be sprayed on the body surface, to reach the purpose that absorbs a large amount of heats.The heat absorption particle is that a kind of core particle diameter is the microencapsulation fine particle of 1～1000 μ m, particle is formed and is comprised shell and core matter, shell is a kind of macromolecule resin that is selected from melamino-formaldehyde, urea-formaldehyde resin, PU and acryl, core matter is a kind of heat absorption material that is selected from fusing point about 35 ℃～70 ℃ straight chain alkane, higher alcohol and organic acidic material, the weight ratio about 1/20～1/2 of shell and core matter.
(7), the TaiWan, China patent gazette is announced the patent case No. 200402326: it is to disclose a kind of composition and microcapsules manufacture method that forms tool phase-transition material microcapsules, forms and comprises weight percent concentration the aqueous polyurethane aqueous solution between 5% to 40%, phase-transition material, oil phase monomer and solid wax approximately at least.Wherein, between 3% to 12%, the weight ratio of oil phase monomer and aqueous polyurethane is approximately between 25% to 50% approximately for the weight percent concentration that the oil phase monomer is dissolved in phase-transition material.Composition carries out the processing procedure of microcapsules with stepped intensification after stirring through emulsification.
Take a broad view of that above prior art is carried and the preparation method, mostly must be through the extruding pelletization stage; Yet these methods make material through the cracking temperature of hot resume and fiting chemical blowing agent repeatedly, are not suitable in fact very much making high foamed products.In addition, adopt in the foaming processing procedure of chemical blowing in tradition, no matter be in the prescription that mixes, to add blowing agent or additionally add blowing agent in advance, all must be in the internal cause ejaculator moment shearing of utmost point short time, allow CBA reach cracking temperature emitting gas fast, and make the material foaming at the same time.Yet, it is overheated that ejaculator will be sheared in moment easily, so not only can cause the cracking of material, and the gas that blowing agent is emitted will be because of cracking and macromolecular material phase-splitting, cause most gas can't melt back resin and make to foam and lost efficacy, or can't obtain desirable foaming finished product because of expansion ratio is too low.
In addition, aspect mould molding, normally directly the molten state material is injected in the mould traditionally, owing to inject the pressure of material at short notice with rapid decline with high pressure, its volume is rapid expanding and fill up dies cavity simultaneously then, after cooling is promptly plastic.
Yet, since inject the pressure of material change too violent usually, though but its rapid expanding on volume, can't even foaming, causing the foaming body after the moulding structurally is not the toughness that is consistent, and for example near the outer rim place broken bubble phenomenon takes place easily usually.Therefore, promptly be convenient to make the foaming body of simple shape, also will may cause the foaming body of manufacturing that damaged flaw is arranged owing to above-mentioned foaming is inhomogeneous.
In addition, when making complex-shaped foaming body, because the foaming body of the corresponding institute of dies cavity desire manufacturing is provided with many different depressions, when injecting the molten state foaming substance with high pressure, but though described material rapid expanding on volume, but be difficult to evenly be packed to each depression, therefore will form so-called foaming dead angle, and then cause the foaming body of manufacturing to have flaws such as damaged.
In view of this, in order to improve above-mentioned many shortcomings, improve at technology such as using traditional shooting foaming and mould molding, so that being provided, a kind of two-in-one mixing squeeze injection device and using method thereof, remove and to utilize melting, mix, cooling and delicate metering one-shot forming, need not pass through the granulation processing procedure, and can at a high speed and effectively prepare outside the high foamed products, also can avoid because of generation foaming dead angle or because of the inhomogeneous foamed products flaw that causes that foams.Long-pending experience and the constantly research and development improvement for many years of inventor has generation of the present invention then.
Summary of the invention
Main purpose of the present invention provide a kind of have to mix extrude the two-in-one crowded injection device that mixes of unit, rely on utilize melting, mix, cooling and delicate metering one-shot forming, need not pass through the granulation processing procedure, can high speed and effectively prepare high foamed products.
Main purpose of the present invention is providing a kind of two-in-one crowded injection device that mixes with allocation units and corresponding die unit, so can avoid producing the foaming dead angle or foam situation such as inhomogeneous, and flaw is minimized, with the qualification rate of effective raising foamed products.
For achieving the above object, the technical solution used in the present invention is:
A kind of two-in-one crowded injection device that mixes is used for making height and is foamed into product, it is characterized in that, comprises that one mixes and extrudes unit, allocation units and a die unit, wherein:
This mixes and extrudes the unit, has an axle center, and extrude in the unit through described mixing in described axle center; Described mixing extruded the unit and comprised:
One pan feeding section has a feeding mouth, for being packed into polymer substance;
One extruded segment is for pushing the polymer substance that is loaded;
One melt zone, relying on provides high temperature, with the polymer substance that fusing is extruded, makes to be molten condition;
One section of mixing is connected with a physical blowing agent feed unit, so that physical blowing agent is supplied in the described section of mixing, mixes and fill part with the polymer substance that is molten condition;
One temperature descending section is for filling the polymer substance mixture cooling that part is mixed with physical blowing agent; And
One squeezes the section of penetrating, for squeezing the polymer substance mixture that penetrates cooling;
These allocation units have at least one distribution road, and are connected with the aforementioned crowded section of penetrating of extruding the unit of mixing, and squeeze the polymer substance mixture that penetrates for holding by squeezing the section of penetrating; Each distributes the road to have valve control outlet; And,
This die unit, it has at least one inlet, and described inlet engages with the valve control outlet of aforementioned allocation units; When described valve control port opening, the polymer substance mixture that is filled in the aforementioned distribution road can enter die unit inside via described inlet.
In addition, the present invention also provides a kind of and uses aforementioned two-in-one mixing to squeeze injection device to make the method that height is foamed into product, may further comprise the steps:
Step (A1): polymer substance is filled in the described pan feeding section via feeding mouth;
Step (A2): polymer substance is delivered in the described extruded segment, so that polymer substance is pushed;
Step (A3): polymer substance is delivered in the described melt zone,, makes to be molten condition so that polymer substance is melted;
Step (A4): polymer substance is delivered in the described section of mixing, the polymer substance that is molten condition and physical blowing agent is filled part mix;
Step (A5): aforementioned and physical blowing agent are filled the polymer substance mixture that part mixes be delivered in the described temperature descending section, with described polymer substance mixture cooling, and make it keep molten condition;
Step (A6): the polymer substance mixture is delivered to described squeezing in the section of penetrating, squeezes thus and inject in the distribution road of described allocation units, and be full of within it; This moment, described valve control outlet was a closed condition;
Step (A7): control described valve control port opening, make described polymer substance mixture enter and fill up the inside of die unit via the inlet of valve control outlet of opening and die unit.
Compared with prior art, the beneficial effect that the present invention has is: in sum, the present invention respectively takes charge of institute's duty with the two-in-one element that squeezes in the injection device that mixes, mix and cooling and delicate metering one-shot forming via melting, the granulation processing procedure need not be passed through, the processing procedure that effectively prepares high Foamex at a high speed can be reached.In addition, also can rely on the design of the valve control outlet of allocation units, and be avoided producing the foaming dead angle or the situation such as inhomogeneous that foams, and flaw is minimized, with the qualification rate of effective raising foamed products.
Description of drawings
Fig. 1 is the vertical view of first embodiment of a kind of two-in-one crowded injection device that mixes of the present invention;
Fig. 2 is the profile of first embodiment of a kind of two-in-one crowded injection device that mixes of the present invention;
Fig. 3 is the vertical view of second embodiment of a kind of two-in-one crowded injection device that mixes of the present invention;
Fig. 4 is the profile of second embodiment of a kind of two-in-one crowded injection device that mixes of the present invention;
Fig. 5 is the flow chart that shows the using method of using the two-in-one crowded injection device that mixes of the present invention.
Description of reference numerals: mix and extrude unit 10; High speed press section 1122 '; Axle center 12; Allocation units 20; Pan feeding section 102; Distribute road 202; Feeding mouth 1020; Valve control outlet 204; Extruded segment 104; Die unit 30; Threaded portion 120; Inlet 302; Melt zone 106; Physical blowing agent feed unit 40; The section of mixing 108; Gases at high pressure unit 402; Netted staggered portion 122; Gas streamer pump unit 404; Unidirectional twill portion 124; Temperature and pressure measurement cell 50; Temperature descending section 110; Metering units 60; Squeeze the section of penetrating 112,112 '; Motor 70; Step (A1): polymer substance is filled in the described pan feeding section via feeding mouth; Step (A2): polymer substance is delivered in the described extruded segment, so that polymer substance is pushed; Step (A3): polymer substance is delivered in the described melt zone,, makes to be molten condition so that polymer substance is melted; Step (A4): polymer substance is delivered in the described section of mixing, the polymer substance that is molten condition and physical blowing agent is filled part mix; Step (A5): aforementioned and physical blowing agent are filled the polymer substance mixture that part mixes be delivered in the described temperature descending section, with described polymer substance mixture cooling, and make it keep molten condition; Step (A6): the polymer substance mixture is delivered to described squeezing in the section of penetrating, squeezes thus and inject in the distribution road of described allocation units, and be full of within it; This moment, described valve control outlet was a closed condition; Step (A7): control described valve control port opening, make described polymer substance mixture enter and fill up the inside of die unit via the inlet of valve control outlet of opening and die unit.
The specific embodiment
The present invention discloses a kind of being used to make the two-in-one crowded injection device that mixes that height is foamed into product, and including mixes extrudes unit, allocation units and die unit.Described mixing extruded the unit and included pan feeding section, extruded segment, melt zone, the section of mixing, temperature descending section and squeeze the section of penetrating, so that the polymer substance of inserting is injected macromolecule mixture in the allocation units via the described section of penetrating of squeezing at last respectively through extruding, fusing, mix and process such as cooling with physical blowing agent.Described allocation units have at least one distribution road, and each distributes the road to have valve control outlet.Described die unit then has at least one inlet, and described inlet is to be connected with the valve control outlet that distributes the road.When the described valve control of unlatching exported, described polymer substance mixture entered and fills up described die unit inside via described valve control outlet and die unit inlet.After the demoulding, can obtain high foamed products.。
See also Fig. 1 to Fig. 2, it is to show a kind of one first embodiment that height is foamed into the two-in-one crowded injection device that mixes of product that is used to make of the present invention.In the present embodiment, the described two-in-one crowded injection device that mixes includes to mix and extrudes unit 10, allocation units 20 and die unit 30.
Described mixing extruded unit 10 and had an axostylus axostyle 12 that runs through in it, and includes a pan feeding section 102, an extruded segment 104, a melt zone 106, a section of mixing 108, a temperature descending section 110 and a crowded section of penetrating 112.Wherein, the described axostylus axostyle 12 of extruding unit 10 that mixes is to be connected with a motor 70, and the power that relies on described motor 70 to be provided can drive described axostylus axostyle 12 and rotate.
Aforementioned pan feeding section 102 is provided with a feeding mouth 1020, so that polymer substance is inserted in it.When implementing, rely on and use different types of polymer substance (for example resin), can utilize it different dissolve viscosity and expansion ratio is controlled.In addition, axostylus axostyle 12 surfaces in the aforementioned pan feeding section 102 are provided with threaded portion 120; Therefore, when axostylus axostyle 12 is rotated by motor 70, the polymer substance that is packed into can be moved forward.
Aforementioned extruded segment 104 is the polymer substances that loaded for extruding; 106 of described melt zones rely on provides high temperature, with the polymer substance that fusing is extruded, makes it be molten condition.In addition, axostylus axostyle 12 surfaces of described extruded segment 104 and melt zone 106 inside also are provided with threaded portion 120.
When implementing, the described axostylus axostyle 12 that is provided with threaded portion 120 partly is can comprise the screw element of high dispersive and high distribution kenel and set up at least one gas injection hole and at least one auxiliary agent orifice at the compressional zone back segment in material cylinder appropriate location.The screw rod 12 of described melt zone 106 inside partly then is the outer material cylinder around heating plate of can arranging in pairs or groups, so that heat energy to be provided.In addition, preferable being at least more than 28: 1 of ratio of its length and bore (diameter).
Polymer substance will continue before to be delivered in the section of mixing 108 after being squeezed and fusing.The section of mixing 108 is to be connected with a physical blowing agent feed unit 40, physical blowing agent is supplied in the described section of mixing 108, mixes and fill part with the polymer substance that is molten condition.
When implementing, described physical blowing agent feed unit 40 comprises a gases at high pressure unit 402 and a gas streamer pump unit 404; Employed physical blowing agent can be organic type (for example carbon methane series row) or inorganic type (for example nitrogen or carbon dioxide), and injects in the section of mixing 108 in the mode of flow valve segmentation or mixing control.
In addition, screw rod 12 surfaces that are positioned at the section of mixing 108 are to be provided with a plurality of netted staggered portions, or collocation is provided with at least one unidirectional twill portion.In the present embodiment, be provided with three netted staggered portions 122 and a unidirectional twill portion 124 on screw rod 12 surfaces, so can make the physical blowing agent of polymer substance and injection obtain better stirring action.
Fill the polymer substance mixture that mixes of part with physical blowing agent and continue to be sent to temperature descending section 110, with its cooling.Axostylus axostyle 12 in temperature descending section 110 partly is to be provided with threaded portion 120 on the surface, and the outer material cylinder around cooling worm of can arranging in pairs or groups, and so carries out the function of cooling.The reason of utilizing described temperature descending section 110 that the polymer substance mixture is done suitably cooling mainly is, make blowing agent and described polymer substance mixture after fully mixing, utilize cooling to control the intensity that dissolves of described mixture, to avoid the allowing blowing agent volatilization lose efficacy.
On the implementation, aforementioned cooling degree must make temperature remain on critical-temperature on, promptly after cooling, described polymer substance mixture is still kept the melting state.Therefore, described temperature descending section 110 squeezes contiguous that the section of penetrating 112 places are preferable to be connected with pressure measurement cell 50 with a temperature, the temperature and the pressure of confession monitoring polymer substance mixture.In addition, being positioned at the length of axostylus axostyle 12 of described temperature descending section 110 inside and the ratio of bore (diameter) was at least 8: 1.
After the suitable cooling of aforementioned polymer substance mixture process, then will be continued to deliver to the crowded section of penetrating 112.At present embodiment, the described axostylus axostyle 12 that squeezes the section of penetrating 112 inside partly is to be provided with a netted staggered portion 112 and a unidirectional twill portion 124 on the surface.When implementing, the described section of penetrating 112 of squeezing is preferablely to be connected with a metering units 60, is used for controlling described polymer substance mixture by the amount of crowded ejaculation.
The aforementioned crowded section of penetrating 112 is to be connected with described allocation units 20, so can be with directly crowded the injecting in the described allocation units 20 of polymer substance mixtures of squeezing in the section of penetrating 112.In the present embodiment, described allocation units 20 are to be extended with three distribution roads 202 side by side vertically downward, and each distributes the end in road 202 to be provided with valve control outlet 204.30 of die units in the present embodiment are elongated moulds, and correspond to the valve control outlet 204 of aforesaid allocation units 20, are provided with three inlets 302 respectively in the top; Wherein each inlet 302 is to be connected with valve control outlet 204.
About the structural design of allocation units and die unit, except that the described mode of the foregoing description, also can distribute the road person that is set to the horizontal-extending; Wherein, described horizontally extending distribution road tip designs is airtight person, and is being provided with valve control outlet near terminal bottom; Or also can be provided with valve control outlet at described horizontally extending distribution road end.The inlet of die unit can be with the change on the dispense unit configurations, and is provided with in position.
In the time of in the polymer substance mixture enters distribution road 202, described valve control outlet 204 is to be controlled as closed condition.Simultaneously, rely on the control of aforementioned metering units 60, the polymer substance mixture of appropriate amount can be pushed and then be filled in and distribute in the road 302.
Distribute in the road 302 when required polymer substance mixture all is packed into, described polymer substance mixture still is in the melting attitude of critical-temperature, and has high relatively pressure; Die unit 30 inside then are in the relatively low pressure state.Subsequently, control aforementioned three valve controls outlet 204 and open simultaneously, the polymer substance mixture of high pressure will enter the inside of die unit 30 via three valve controls outlets 204 and inlet 302 corresponding and that be communicated with simultaneously, and expand at once and fill up its inside.
See also Fig. 3 to Fig. 4, it shows the second embodiment of the present invention, for convenience of description for the purpose of, wherein identical with first embodiment structure will use same label to censure, and identical narration then no longer repeats.In the present embodiment, be provided with one at the crowded section of penetrating 112 ' end and extrude at a high speed portion 1122 ', so can the oil pressure mode, the polymer substance mixture is injected in the distribution road 202 of allocation units 20.
By aforementioned content as can be known, the two-in-one crowded injection device that mixes of the present invention mainly has following characteristic:
1, the two-in-one crowded injection device that mixes of the present invention is to be penetrated with an axostylus axostyle in inside, can will integrating thereon, and make the processing procedure of polymer substance be able in same device, finish continuously according to the threaded portion that different purposes are arranged, netted staggered portion or unidirectional twill portion.
2, in the present invention, can rely on to change employed polymer substance kind, and control its expansion ratio.
3, in the present invention, can utilize the physical blowing agent of organic type or inorganic type, to obtain preferable foaming effect.
4, rely on temperature descending section provided by the present invention, can at blowing agent and described polymer substance mixture after fully mixing, the polymer substance mixture be done suitably to lower the temperature, controlling the intensity that dissolves of described mixture, and avoid allowing the blowing agent inefficacy of volatilizing.
5, rely on the allocation units with valve control outlet provided by the present invention, can make the polymer substance mixture that is melting attitude and tool relatively high pressure, through a plurality of inlets, enter die unit inside simultaneously, to avoid the producing foaming dead angle or to foam situation such as inhomogeneous, and flaw is minimized, with the qualification rate of effective raising foamed products.
The present invention also discloses and a kind ofly uses above-mentioned two-in-one mixing to squeeze injection device to make the method that height is foamed into product.See also Fig. 5, it is the flow chart that shows said method.As shown in the figure, described method may further comprise the steps:
Steps A 1: polymer substance is filled in the described pan feeding section via feeding mouth;
Steps A 2: polymer substance is delivered in the described extruded segment, so that polymer substance is pushed;
Steps A 3: polymer substance is delivered in the described melt zone,, makes to be molten condition so that polymer substance is melted;
Steps A 4: polymer substance is delivered in the described section of mixing, the polymer substance that is molten condition and physical blowing agent is filled part mix;
Steps A 5: aforementioned and physical blowing agent are filled the polymer substance mixture that part mixes be delivered in the described temperature descending section, with described polymer substance mixture cooling, and make it keep molten condition;
Steps A 6: the polymer substance mixture is delivered to described squeezing in the section of penetrating, squeezes thus and inject in the distribution road of described allocation units, and be full of within it; This moment, described valve control outlet was a closed condition;
Steps A 7: control described valve control port opening, make described polymer substance mixture enter and fill up the inside of die unit via the inlet of valve control outlet of opening and die unit.
In sum, the present invention respectively takes charge of institute's duty with the two-in-one element that squeezes in the injection device that mixes, and mixes and cooling and delicate metering one-shot forming via melting, need not pass through the granulation processing procedure, can reach the processing procedure that effectively prepares high Foamex at a high speed.In addition, also can rely on the design of the valve control outlet of allocation units, and be avoided producing the foaming dead angle or the situation such as inhomogeneous that foams, and flaw is minimized, with the qualification rate of effective raising foamed products.
More than explanation is just illustrative for the purpose of the present invention; and nonrestrictive, those of ordinary skills understand, under the situation of the spirit and scope that do not break away from claim and limited; can make many modifications, variation or equivalence, but all will fall within protection scope of the present invention.
Claims (13)
1. the two-in-one crowded injection device that mixes is used for making height and is foamed into product, it is characterized in that, comprises that one mixes and extrudes unit, allocation units and a die unit, wherein:
This mixes and extrudes the unit, has an axle center, and extrude in the unit through described mixing in described axle center; Described mixing extruded the unit and comprised:
One pan feeding section has a feeding mouth, for being packed into polymer substance;
One extruded segment is for pushing the polymer substance that is loaded;
One melt zone, relying on provides high temperature, with the polymer substance that fusing is extruded, makes to be molten condition;
One section of mixing is connected with a physical blowing agent feed unit, so that physical blowing agent is supplied in the described section of mixing, mixes and fill part with the polymer substance that is molten condition;
One temperature descending section is for filling the polymer substance mixture cooling that part is mixed with physical blowing agent; And
One squeezes the section of penetrating, for squeezing the polymer substance mixture that penetrates cooling;
These allocation units have at least one distribution road, and are connected with the aforementioned crowded section of penetrating of extruding the unit of mixing, and squeeze the polymer substance mixture that penetrates for holding by squeezing the section of penetrating; Each distributes the road to have valve control outlet; And,
This die unit, it has at least one inlet, and described inlet engages with the valve control outlet of aforementioned allocation units; When described valve control port opening, the polymer substance mixture that is filled in the aforementioned distribution road can enter die unit inside via described inlet.
2. the two-in-one crowded injection device that mixes according to claim 1, it is characterized in that: the surface that the axle center is positioned at described extruded segment and melt zone inside is provided with the threaded portion.
3. the two-in-one crowded injection device that mixes according to claim 2 is characterized in that: being positioned at the length in axle center of described extruded segment and melt zone inside and the ratio of its diameter is 28: 1 at least.
4. the two-in-one crowded injection device that mixes according to claim 1 is characterized in that: the axle center that is positioned at the described intersegmental part that mixes is provided with a plurality of netted staggered portions on the surface.
5. the two-in-one crowded injection device that mixes according to claim 4 is characterized in that: the surface that the axle center is positioned at the described intersegmental part that mixes more is provided with at least one unidirectional twill portion.
6. the two-in-one crowded injection device that mixes according to claim 1, it is characterized in that: the surface that the axle center is positioned at described temperature descending section inside is provided with screw thread, and the axle center is positioned at the described surface of penetrating intersegmental part of squeezing and is provided with at least one netted staggered portion.
7. the two-in-one crowded injection device that mixes according to claim 6 is characterized in that: the axle center is positioned at the length of described temperature descending section inside and the ratio of its diameter is 8: 1 at least.
8. the two-in-one crowded injection device that mixes according to claim 6 is characterized in that: the axle center is positioned at the described surface penetrate intersegmental part of squeezing and more is provided with at least one unidirectional twill portion.
9. the two-in-one crowded injection device that mixes according to claim 6 is characterized in that: be provided with one at the described crowded section of penetrating end and extrude portion at a high speed, for the polymer substance mixture is injected in the described allocation units.
10. the two-in-one crowded injection device that mixes according to claim 1 is characterized in that: the described crowded section of penetrating is to be connected with a metering units, is used for controlling described polymer substance mixture and is squeezed the amount that penetrates.
11. the two-in-one crowded injection device that mixes according to claim 1 is characterized in that: described physical blowing agent feed unit more comprises a gases at high pressure unit and a gas streamer pump unit.
12. the two-in-one crowded injection device that mixes as claimed in claim 1 is characterized in that: described temperature descending section is penetrated Duan Chu and is connected with pressure measurement cell with a temperature contiguous described squeezing, for the temperature and the pressure of monitoring polymer substance mixture.
13. a using method for the operation two-in-one crowded injection device that mixes as claimed in claim 1, is characterized in that, may further comprise the steps:
(A1) polymer substance is filled in the described pan feeding section via feeding mouth;
(A2) polymer substance is delivered in the described extruded segment, so that polymer substance is pushed;
(A3) polymer substance is delivered in the described melt zone,, makes to be molten condition so that polymer substance is melted;
(A4) polymer substance is delivered in the described section of mixing, the polymer substance that is molten condition and physical blowing agent is filled part mix;
(A5) aforementioned and physical blowing agent are filled the polymer substance mixture that part mixes and be delivered in the described temperature descending section, with described polymer substance mixture cooling, and make it keep molten condition;
(A6) the polymer substance mixture is delivered to described squeezing in the section of penetrating, squeezes thus and inject in the distribution road of described allocation units, and be full of within it; This moment, described valve control outlet was a closed condition;
(A7) the described valve control port opening of control makes described polymer substance mixture enter and fill up the inside of die unit via the inlet of valve control outlet of opening and die unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101501872A CN101954698A (en) | 2009-07-16 | 2009-07-16 | Mixing and injecting combined device and use method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101501872A CN101954698A (en) | 2009-07-16 | 2009-07-16 | Mixing and injecting combined device and use method thereof |
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| Publication Number | Publication Date |
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| CN101954698A true CN101954698A (en) | 2011-01-26 |
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| CN2009101501872A Pending CN101954698A (en) | 2009-07-16 | 2009-07-16 | Mixing and injecting combined device and use method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109774044A (en) * | 2018-12-30 | 2019-05-21 | 无锡柯乐新材料科技有限公司 | A kind of leather soft roll automatic foaming forming production line |
| CN110900931A (en) * | 2019-11-07 | 2020-03-24 | 湖南工业大学 | Polylactic acid foaming material preparation facilities and product forming device thereof |
| CN111216375A (en) * | 2019-10-24 | 2020-06-02 | 南京聚能新材料有限公司 | Preparation process and equipment of PA physical foaming material |
| CN112659447A (en) * | 2019-10-15 | 2021-04-16 | 钜钢机械股份有限公司 | Injection molding system and injection molding method |
| TWI780575B (en) * | 2021-01-18 | 2022-10-11 | 大田油壓機工業股份有限公司 | Supercritical fluid material squeezing injection molding machine |
-
2009
- 2009-07-16 CN CN2009101501872A patent/CN101954698A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109774044A (en) * | 2018-12-30 | 2019-05-21 | 无锡柯乐新材料科技有限公司 | A kind of leather soft roll automatic foaming forming production line |
| CN112659447A (en) * | 2019-10-15 | 2021-04-16 | 钜钢机械股份有限公司 | Injection molding system and injection molding method |
| CN112659447B (en) * | 2019-10-15 | 2023-08-04 | 钜钢机械股份有限公司 | Injection molding system and injection molding method |
| CN111216375A (en) * | 2019-10-24 | 2020-06-02 | 南京聚能新材料有限公司 | Preparation process and equipment of PA physical foaming material |
| CN110900931A (en) * | 2019-11-07 | 2020-03-24 | 湖南工业大学 | Polylactic acid foaming material preparation facilities and product forming device thereof |
| TWI780575B (en) * | 2021-01-18 | 2022-10-11 | 大田油壓機工業股份有限公司 | Supercritical fluid material squeezing injection molding machine |
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Application publication date: 20110126 |