CN100553937C - The extrusion neck ring mold of preparation alternate multiple high polymer composite material - Google Patents
The extrusion neck ring mold of preparation alternate multiple high polymer composite material Download PDFInfo
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- CN100553937C CN100553937C CNB2006100223486A CN200610022348A CN100553937C CN 100553937 C CN100553937 C CN 100553937C CN B2006100223486 A CNB2006100223486 A CN B2006100223486A CN 200610022348 A CN200610022348 A CN 200610022348A CN 100553937 C CN100553937 C CN 100553937C
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Abstract
The invention discloses a kind of polymer composite extrusion neck ring mold that is used to prepare alternating multilayered structure, include two connectors, a junction station and the folded device of branch, the import of connector is connected with the extruder extrusion, outlet links to each other with the junction station import, the outlet of junction station links to each other with dividing folded device import, the folded device of described branch contains several by unit module and the folded unit of the branch that the melt layering is superimposed that constitutes with the unit housings of unit module coupling, and the folded unit outlet of last branch links to each other with folded unit inlet butt joint in back a minute.Melt is experience shunting-unsteady flow-lamination process in each divides folded unit, whenever just once doubles through the folded unit of the branch number of plies, and the number of plies just is increased to 2 after experiencing n branch and folding the unit
(n+1)Layer is processed to the composite of alternating multilayered structure.The present invention has simple in structure, and processing and fabricating is easy, and easy accessibility, the composite number of plies and bed thickness ratio are easy to control, can be widely used in to produce preparation alternating multilayered structure laminated film, sheet material etc.
Description
One, invention field
The present invention relates to a kind of polymer material layer stack worker technology, more particularly, relate to a kind of alternate multiple extrusion neck ring mold that is used for polymer material layer stack worker.
Two, background technology
Through the macromolecular material of the compound preparation of alternate multiple because its mechanical property, barrier property, electric conductivity, aspects such as optical property have unique advantage, have been widely used, more and more be subject to people's attention, therefore prepare and develop polymer composite and just become the hot subject of polymeric material field at twentieth century six the seventies with this kind structure, a lot of countries have dropped into great amount of manpower, material resources and financial resources are researched and developed, and some achievements in research have been obtained, designed the multilayer extrusion die that is used to produce preparation alternate multiple composite high-molecular material, what have has applied for patent, United States Patent (USP) 3557265 as people such as W.J.Shrenk application, 3565985,3773882,3884606, and Chinese patent CN1511694A afterwards.Prior art is produced the extrusion neck ring mold of preparation alternate multiple composite high-molecular material, in layering, all adopt multithread road structure (i.e. runner control one deck) basically, complex structural designs (number of plies is many more complicated more), design accuracy requires high, and in use occurs leaking material or interlayer material easily and problem such as scurry mutually.
Three, summary of the invention
Prepare the deficiency that the multilayer extrusion neck ring mold of alternate multiple high polymer composite material exists at the production of prior art, purpose of the present invention aims to provide a kind of simple in structure, easy to operate, number of plies and layer thickness prepare alternate multiple high polymer composite material than more manageable production extrusion neck ring mold.
Can realize that the production of foregoing invention purpose prepares the extrusion neck ring mold of alternate multiple high polymer composite material, its concrete technical scheme is as follows:
Be used to prepare the extrusion neck ring mold of alternate multiple high polymer composite material, include two connectors, a junction station and the folded device of branch, the connector import links to each other with the extruder extrusion, outlet links to each other with the junction station import, the outlet of junction station links to each other with dividing folded device import, the folded device of described branch contains several by unit module and the folded unit of the branch that the melt layering is superimposed that constitutes with the unit housings of unit module coupling, the folded unit of two neighbour mutually branches, the folded unit outlet of last branch is connected with folded unit inlet butt joint in back a minute, unit module design has with unit housings is common and forms the makeup of the imports that the complete melt that will enter the folded unit of branch is divided into two strands, the two-layer runner of the two-layer runner or the left and right sides up and down that the exit width that melt layer is broadened gradually is identical, with two-layer melt is converged the outlet that stacks, and the import thickness that divides folded unit and width and exit thickness and width are consistent.Melt is experience shunting-unsteady flow-lamination process in each divides folded unit, is become two-layerly by one deck, whenever just once doubles through its number of plies of the folded unit of a branch, and after n branch of material experience folded the unit, its number of plies just was increased to 2
(n+1)Layer is processed to the composite of alternating multilayered structure.
In technique scheme, divide unit module and unit housings formation in the folded unit up and down or the two-layer runner in the left and right sides, be generally the design that is parallel to each other, preferably symmetrical parallel design.Runner is preferably designed as curved surface along the face of sprue up and down or the left and right sides sprue face of melt flows direction.Curved surface runner face can be designed to be made of the plane of cambered surface and outlet section, and promptly the import of runner face and mid portion are arc surface, and exit portion is the plane, carries out the transition to the plane gradually by former cambered surface.Described arc surface preferentially adopts the face of cylinder.
In technique scheme, when dividing folded unit when being horizontally disposed with, the two-layer runner of unit module and unit housings formation be about two-layer runner, melt carries out superimposed in the horizontal direction.When dividing folded unit when vertically being provided with, the two-layer runner of unit module and unit housings formation is the two-layer runner in the left and right sides, and melt carries out superimposed in vertical direction.
In technique scheme, the import thickness that divides folded unit and width and exit thickness and width generally are designed to consistent, and thickness is generally 0.1mm-50mm, and width is generally 10mm-800mm.
In technique scheme, two runners in the junction station all are designed to the rectangle runner, and it is a rectangularl runner that two rectangle runners conflux gradually.Preferably to conflux up and down be a rectangularl runner to two rectangle runners, so that make the melt that enters the folded unit of branch carry out superimposed in the horizontal direction.
In technique scheme, the runner in the connector can be designed to the rectangularl runner that is carried out the transition to outlet section by the column type runner of inducer gradually.Runner exit in the connector is designed to rectangle, the control of the layer thickness ratio of being more convenient for.
The present invention has also taked other some technical measures.
Preparation alternate multiple high polymer composite material extrusion neck ring mold provided by the invention, the runner that its junction station links to each other with connector is runner independently, the stacked Compound Machining that both can be used for same kind macromolecular material also can be used for the stacked Compound Machining of variety classes macromolecular material.Two runners can be designed to different sizes, are used to process the laminated composite material of different layers thickness ratio.Dividing folded device independently to divide folded unit to be coupled to each other assembling by several constitutes, constitute independent ingenious structure of dividing the unit module of folded unit, make the melt that enters the folded unit of branch after cutting shunting-unsteady flow-superimposed extruding, processed material is become two layers by one deck by Compound Machining, branch of every increase is folded the unit, and its number of plies just doubles.When dividing folded device to contain the folded unit of n branch, the material melt divides folded unit inlet to enter to export out to folding the unit by last branch from first in dividing folded device, promptly processedly is prepared into that to replace the compound number of plies be 2
(n+1)The polymer composite of layer.The present invention's production compared to prior art prepares the extrusion neck ring mold of alternate multiple composite high-molecular material, the multithread road structural design of one deck one runner (i.e. runner control one deck), structure is greatly simple, processing and fabricating is easy, divide the increase and decrease of folded unit easy to assembly, low cost of manufacture, in the use cleaning and safeguard very convenient.
The extrusion neck ring mold of preparation alternate multiple composite provided by the invention can be used to produce film, sheet material, sheet material and the different in nature material etc. of the macromolecular material of the different numbers of plies of preparation and different layers thickness ratio.Also can be used for other melt processible materials are carried out processing such as film, sheet material, sheet material and different in nature material.
Four: description of drawings
Fig. 1 is the surface structure schematic diagram of extrusion neck ring mold
Fig. 2-1, Fig. 2-2 and Fig. 2-the 3rd, the structural representation of extrusion neck ring mold junction station.Fig. 2-the 2nd wherein, the A-A of Fig. 2-1 be to cutaway view, Fig. 2-the 3rd, the vertical view of Fig. 2-1.
Fig. 3-1, Fig. 3-2 and Fig. 3-the 3rd, the structural representation of the extrusion neck ring mold junction station of another structure.Fig. 3-the 2nd wherein, the B-B of Fig. 1-1 be to cutaway view, Fig. 3-the 3rd, the vertical view of Fig. 3-1.
Fig. 4-1, Fig. 4-2 and Fig. 4-the 3rd, the structural representation of the folded unit of branch of the folded device of branch.Fig. 4-the 1st wherein, the schematic appearance of dividing folded unit, Fig. 4-the 2nd, the unit module perspective view of dividing folded unit, Fig. 4-the 3rd is the cutaway view of the folded unit of branch along the melt flows direction.
Fig. 5 is that extrudate is perpendicular to the cross section appearance structure schematic diagram of extruding direction.
The sign object of the shown by reference numeral in the above-mentioned accompanying drawing is: 1,2 extruders; 3,4 connectors; 5 junction stations, 5-1,5-2 are two runners of junction station, and 5-3 is the runner that confluxes; 6 fens folded devices; 7 cooling devices; 8 draw-gears; 9 composite products; 10 fens folded unit; 11 unit modules; 12 unit housings; 13 fens folded unit flow passages.
Five: the specific embodiment
The extrusion neck ring mold of the disclosed preparation alternate multiple high polymer composite material of present embodiment, the overall structure profile as shown in Figure 1, comprise that two are squeezed the connector 3,4 of 1,2 outlet fixed connections with extruder, junction station 5 and the branch with the junction station fixed connection with the connector fixed connection is folded device 6.Runner in the connector is for being carried out the transition to the rectangularl runner of outlet section gradually by the column type runner of inducer.The structure of junction station is shown in accompanying drawing 2-1,2-2 and 2-3, the rectangularl runner of itself and two connectors 3,4 exports about joining two import 5-1,5-2 and shifts to install, i.e. two imports neither consistency from top to bottom also not about alignment, two rectangle runners conflux gradually be one with divide the folded joining rectangularl runner 5-3 of device.The structure of dividing folded device is shown in accompanying drawing 4-1,4-2,4-3, contain several by unit module 11 and the folded unit 10 of the branch that the melt layering is superimposed that constitutes with the unit housings 12 of unit module coupling, the structure of unit module is shown in accompanying drawing 4-2, design has up and down two-layer runner 13 identical with the common exit width that forms import that the complete melt that will enter the folded unit of branchs is divided into two strands, melt layer is broadened gradually of unit housings 12 and the outlet that two-layer melt remittance is stacked.Divide the import thickness of folded unit consistent with width with width and exit thickness, thickness is 10mm, width 100mm, and the folded unit of two neighbour mutually branches, last branch are folded the unit and are exported and dock connection with back one minute folded unit inlet.Divide between the folded unit to fit together the folded device of formation branch by location structure and fixed connecting piece, divide folded device setting parallel to the ground, face is parallel to the ground even the composite of preparation is superimposed.
The extrusion neck ring mold of the disclosed preparation alternate multiple high polymer composite material of present embodiment, its overall structure is substantially the same manner as Example 1, and different places is the structure of junction station and divides folded device set-up mode.The structure of the junction station of present embodiment is shown in accompanying drawing 3-1, Fig. 3-2 and Fig. 3-3, its rectangularl runner with two connectors 3,4 exports the setting of aliging about joining two import 5-1,5-2, it is one and the folded joining rectangularl runner 5-3 of device of branch that two rectangle runners conflux gradually, and the rectangularl runner face is perpendicular to the ground.Described branch is folded device setting perpendicular to the ground, and face is perpendicular to the ground even the composite of preparation is superimposed.This setup helps the installation setting of extruder.
The technical process that adopts the present invention to prepare alternate multiple high polymer composite material is, two bursts of similar and different macromolecule plastic melt are extruded by extruder 1 and extruder 2 respectively, two strands of melts enter junction station through connector 3 and connector 4 from two the independent runner 5-1 and the 5-2 of junction station 5 respectively, converging at junction station is a public runner 5-3, come out to obtain two-layer melt by junction station, enter then by the folded device 6 of several branches that divide folded unit 10 to constitute, melt to be processed in each divides folded unit all successively through cutting shunting-unsteady flow-superimposed, one deck when entering is processed as two-layer, experience behind the folded unit of n branch after the processing, two kinds of alternately laminated numbers of plies of material just are increased to 2
(n+1)Layer under the draw-gear traction, after the cooling device cooling, promptly is processed to the alternate multiple composite products by the composite that divides folded device processing to extrude.
Below be the several instantiations that prepare alternate multiple high polymer composite material with the present invention.
Preparation thickness replaces compound LLDPE/PP film for uniform 32 layers.The folded device of branch that will contain the folded unit of 4 branches is assemblied in the junction station exit, sets extruder and this mold temperature, reaches the screw speed arrival same rotational speed of regulating extruder after the temperature.Normal back links to each other with the curtain coating mould, can prepare the film of 32 layers of alternating laminated structure.
Preparation HDPE layer and PA layer thickness ratio are that 2: 1 64 layers replace compound HDPE/PA sheet material.The folded device of branch that will contain the folded unit of 5 branches is assemblied in the junction station exit, sets extruder and this mold temperature, and reaching the screw speed of regulating extruder after the temperature, to arrive the screw speed that squeezes HDPE be the twice of squeezing the screw speed of PA.Normal back links to each other with draw-gear 8 with cooling device 7, and can prepare the HDPE layer is the sheet material of 64 layers of alternating laminated structure of 2: 1 with PA layer thickness ratio.
Embodiment 3
Preparation thickness replaces compound PS/PMMA sheet material for uniform 1024 layers.The folded device of branch that will contain the folded unit of 9 branches is assemblied in the junction station exit, sets extruder and this mold temperature, reaches the screw speed arrival same rotational speed of regulating extruder after the temperature.Normal back and cooling device 7 link to each other with draw-gear 8 and can prepare thickness and replace compound PS/PMMA sheet material for uniform 1024 layers.
Embodiment 4
Preparation HDPE layer and PP layer thickness ratio are that 3: 1 128 layers replace compound HDPE/PP sheet material.The folded device of branch that will contain the folded unit of 6 branches is assemblied in the junction station exit, sets extruder and this mold temperature, and reaching the screw speed of regulating extruder after the temperature, to arrive the screw speed that squeezes HDPE be three times of screw speed that squeeze PP.Normal back and cooling device 7 link to each other with draw-gear 8, and can to prepare the HDPE layer be the sheet material of 128 layers of alternating laminated structure of 3: 1 with PP layer thickness ratio.
Claims (10)
1, a kind of extrusion neck ring mold for preparing alternate multiple high polymer composite material, include two connectors, a junction station and the folded device of branch, the connector import links to each other with the extruder extrusion, outlet links to each other with the junction station import, the outlet of junction station links to each other with dividing folded device import, it is characterized in that the folded device of branch contains several by unit module and the folded unit of the branch that the melt layering is superimposed that constitutes with the unit housings of unit module coupling, the folded unit outlet of last branch links to each other with folded unit inlet butt joint in back a minute, the unit module design has the melt that will enter the folded unit of branch that forms jointly with unit housings to be divided into two strands the makeup of the imports, link to each other with two imports broaden gradually have identical exit width up and down or the two-layer runner in the left and right sides and two-layer melt converged the outlet that stacks, and the import thickness that divides folded unit and width and exit thickness and width are consistent.
2, the extrusion neck ring mold of preparation alternate multiple high polymer composite material according to claim 1, it is characterized in that unit module and unit housings form up and down or the two-layer runner in the left and right sides be parallel to each other.
3, preparation alternate multiple high polymer composite material extrusion neck ring mold according to claim 2, it is characterized in that unit module and unit housings form up and down or the two-layer runner in the left and right sides parallel symmetrically.
4, according to the extrusion neck ring mold of claim 1 or 2 or 3 described preparation alternate multiple high polymer composite materials, it is characterized in that runner that unit module and unit housings form along the melt flows direction up and down or left and right sides runner face be curved surface.
5, the extrusion neck ring mold of preparation alternate multiple high polymer composite material according to claim 4 is characterized in that the curved surface runner face that unit module and unit housings form constitutes for the plane by cambered surface and outlet section.
6, the extrusion neck ring mold of preparation alternate multiple high polymer composite material according to claim 5 is characterized in that described cambered surface is a face of cylinder cambered surface.
7, the extrusion neck ring mold of preparation alternate multiple high polymer composite material according to claim 4 is characterized in that the runner import and export thickness that unit module and unit housings form is 0.1mm-50mm, and the import and export width is 10mm-800mm.
8, the extrusion neck ring mold of preparation alternate multiple high polymer composite material according to claim 4 is characterized in that it is a rectangularl runner that two rectangle runners in the described junction station conflux gradually.
9, the extrusion neck ring mold of preparation alternate multiple high polymer composite material according to claim 8 is characterized in that it is a rectangularl runner that two rectangle runners in the described junction station conflux up and down.
10, the extrusion neck ring mold of preparation alternate multiple high polymer composite material according to claim 4, the runner that it is characterized in that described connector is for being carried out the transition to the rectangularl runner of outlet section gradually by the column type runner of inducer.
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| CNB2006100223486A CN100553937C (en) | 2006-11-29 | 2006-11-29 | The extrusion neck ring mold of preparation alternate multiple high polymer composite material |
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| CN100553937C true CN100553937C (en) | 2009-10-28 |
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| WO2011060724A1 (en) * | 2009-11-20 | 2011-05-26 | 北京化工大学 | Device and method for preparing laminated nano-composite material |
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| WO2011060724A1 (en) * | 2009-11-20 | 2011-05-26 | 北京化工大学 | Device and method for preparing laminated nano-composite material |
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Application publication date: 20070516 Assignee: Sichuan Fortune Technology Co., Ltd. Assignor: Sichuan University Contract record no.: 2013510000110 Denomination of invention: Extrusion port die for preparing alternate multiple high polymer composite material Granted publication date: 20091028 License type: Exclusive License Record date: 20131125 |
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