CN205097403U - Long fiber is restrainted melting flooding system and is contained production facility of this system - Google Patents
Long fiber is restrainted melting flooding system and is contained production facility of this system Download PDFInfo
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- CN205097403U CN205097403U CN201520764272.9U CN201520764272U CN205097403U CN 205097403 U CN205097403 U CN 205097403U CN 201520764272 U CN201520764272 U CN 201520764272U CN 205097403 U CN205097403 U CN 205097403U
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Abstract
The utility model provides a long fiber is restrainted melting flooding system and is contained production facility of this system, wherein: the flooding system contains drive unit and the mated actuating sleeve roller of at least a set of complete network, drive unit provides the rotatory power of actuating sleeve roller, the actuating sleeve roller comprises first drive roller and second drive roller, leave between first drive roller and second drive roller and supply the long fiber to restraint the slit that passes through, first drive roller and second drive roller when rotatory between equal and roller the long fiber in the slit restraint the contact, the long fiber shu yundong in the slit between the roller that makes a concerted effort to promote that first drive roller and the mutual gomphosis of second drive roller produced. The utility model discloses realized simultaneously reducing dipping process mid -length fiber bundle thickness and strengthening the purpose that long fiber shu dansi disperses the degree of consistency, reached the fibre and lose less, soak into fully, disperse even, high -speed effect of steadily producing to the acquired character can be more excellent long -fiber reinforced thermoplastic.
Description
Technical field
The utility model relates to contour machining equipment field, is specifically related to a kind of long-fiber bundle melt impregnation system.
Background technology
Modified plastics relates to wide, high in technological content, to create a great economic benefit Plastics Industry field, and plastics modification technology is almost deep into raw material and the molding process of all plastic products especially.The development prospect of modified plastics has following trend: the application of the high-tech such as general-purpose plastics through engineering approaches, engineering plastics high performance, special engineering plastics cost degradation, nanometer composite technology, the green of modified plastics, environmental protection, low-carbon (LC), cycling and reutilization.
Long-fiber-reinforced thermoplastics (LongFiberReinforcedThermoplastics, LFT) be the high-performance new material be in progress that makes a breakthrough in recent years, can make up or replace many deficiencies and the shortcoming of conventional staple reinforced thermoplastics (ShortFiberReinforcedThermoplastics, SFT).Long fiber reinforcement technology is the key core technology realizing general-purpose plastics engineering plastics and engineering plastics high performance target, is generally subject to extensive attention and the Development and Production of domestic and international composite scientific research and industrial quarters.Compared with SFT, LFT has following aspect remarkable advantage: 1) bending strength, hot strength can improve 30-100%; 2) ability of the opposing such as impact flexibility stress fracture can improve 4-10 doubly; 3) there is exclusive three-dimensional net structure, make creep-resistant property excellent, be especially applicable to being used in the frequent occasion of high/low temperature alternation; 4) superelevation dimensional accuracy, shrinkage factor is little and even in length and breadth; 5) both injection mo(u)lding can be carried out on common injection machine, also moldable shaping; 6) low warpage, any surface finish is floating fine few; 7) even thick-wall part, shrinkage factor is little, and goods are easy to realize thin-wall light-weighted.Have above-mentioned outstanding performance just because of LFT plastics, be widely used in automobile engineering plastic construction parts, alternative metals parts are to save cost, reduce weight, to reduce energy consumption; The special engineering plastics that fictitious hosts is high, as nylon, polyphenylene sulfide etc.; Replace thermoset glass steel composite material, as amino resins, unsaturated polyester (UP), phenolic resins etc., improve shaping efficiency, reduce costs, meet the environmental requirement recycled, thus make fiber reinforced thermolplastic composite material application further be strengthened, expand and deepen.
The long fiber reinforcement technology of current industrial scale is melt impregnation, and it is by resin heating and melting, then makes fibre bundle and resin melt contact with each other and acts on, and forms impregnant.The final performance of long fiber reinforced thermoplastic composites depends on the dipping effect of long fibre in resin matrix, if dipping effect is bad, and just cannot the long fiber reinforced thermoplastic composites of excellent.
In melt impregnation process, melt, along the flowing of machine direction and simultaneous when penetrating the flowing of machine direction, can be similar to the flowing being considered as loose structure.The infiltration rate μ that liquid is flowed by loose structure can be provided by Darcy empirical law:
Dip time t needed for melt impregnation fiber
mp:
In formula: k-permeability;
X-liquid flow length;
η-liquid viscosity;
P-the act on Pressure Drop on liquid;
P
m-be applied to external pressure on melt;
P
c-Fiber bundle capillary pressure.
According to Hydrodynamics Theory and Darcy empirical law, fiber impregnation effect is relevant to many factors such as dipping process medium-length fibre Shu Houdu and monofilament dispersed homogeneous degree, resin melt viscosity, fibre bundle drawing tension, dip times.Improve melt pressure, reduce melt viscosity, reduce fibre bundle thickness, long stapled dipping effect will be improved.Wherein, improve melt pressure and need consider and the balance exporting energy, reducing melt viscosity need consider in conjunction with energy, formula angle, and reducing fibre bundle thickness can from dispersion angle.
There are problems in the method for the long stapled dipping effect of existing raising: 1) viscosity of thermoplastic melt is high, flowing not easily, comparatively difficult to the dipping of fiber, usually depend on interpolation characteristic auxiliary agent and carry out formula adjustment reduction viscosity, but characteristic auxiliary agent is expensive usually, and the performance of long fiber reinforcement composite can be reduced and affect outward appearance; 2) utilize the effect of increase drawing tension to disperse long fibre and dipping meeting major injury long fibre, even fracture, affect production efficiency; 3) extend dip time and can improve the dipping effect of fiber, but due to the fusing point of thermoplastic resin all higher, if under thermoplastic resin is in hot environment for a long time, easily oxidized and then affect the quality of long fiber reinforcement composite.
As shown in Figure 1, early stage melt impregnation system is detoured by long-fiber bundle, and (tractive force see Fig. 1 a), relying on additional draw-gear to provide holds out against long-fiber bundle thus reduces the thickness of dipping process medium-length fibre bundle fixed bit structure.Described fixed bit structure refers to the structure that can not move and rotate around the center of circle, as sheath nail, bandlet, curved channel, coiled pipe, stationary roller shaft, deflector roll, plain-barreled roll, pressure roller etc.Long-fiber bundle holds out against dispersion under the tension force effect of additional draw-gear, thickness reduces, enable thermoplastic resin through long-fiber bundle, good infiltration can be obtained, but this type of design generally comprises organizes corner structure more, wrap angle is large and tension force application point is concentrated, the frictional force that fixed bit and fiber bundles contact produce is large, easily occur that fiber is lost even to fracture, cause the content of composite medium-length fibre significantly to reduce, make the performance of composite also significantly reduce (the upper figure see Fig. 1 b); Even due to blocking mouth mould and shut down the composite that can not get long fiber reinforcement, namely obtain after melting still for there is no long stapled thermoplastic (figure below see Fig. 1 b).
As shown in Figure 2, the melt impregnation system of current more employing is the combining structure of wheel train structure or wheel train structure and fixed bit structure, and the rotation of described wheel train structure is passive, drives it to rotate by long-fiber bundle.Described wheel train structure, in different documents, saying is different, can be to rotate deflector roll, contact godet, noncontact godet, driving wheel, driven pulley, running roller etc. (see Fig. 2 a).The pre-add tractive force relying on additional draw-gear to provide makes long-fiber bundle pass in thermoplastic melt, is rotated by long-fiber bundle driven wheel architecture, and then stirs thermoplastic melt, thus improves fluidity of molten, improves long fibre impregnating speed.But adopt the long fiber reinforcement composite that the method is produced, the melt turbulent flow produced due to the wheel train structure (such as running roller) only by several groups of unpowered transmissions is very limited, although decrease and long stapledly lose or fracture, but in dipping process, also little for the effect reducing long-fiber bundle thickness, the simple coated of structure that products obtained therefrom often presents " core-skin ", only surface fibre is infiltrated by resin melt, core fibers is even still in dry state (see Fig. 2 b), Integral long-fiber is difficult to reach abundant infiltration, good interface cohesion cannot be obtained between long fibre and thermoplastic resin, be difficult to obtain high performance long fiber reinforcement composite.For long fiber reinforced plastics pellet (LFT-G), as shown in Figure 2 c, visible, Fig. 2 c is consistent with the schematic diagram of Fig. 2 b for the obtained product profile in kind of the melt impregnation system of wheel train structure, core fibers is even still in dry state, and Integral long-fiber does not reach abundant infiltration.
In addition, some other structure and design are there is successively, as shown in Figure 3, offer reeded jockey pulley, with the running roller of helical groove, gear melt pump etc. (see Fig. 3 a), although these structures adopt the method increasing melt turbulent flow, relatively reduce melt viscosity, be conducive to fiber impregnation, but due to the uneven melt fluctuation of fierceness, disturb fiber axis to the distribution with radial direction, reduce the monofilament dispersed homogeneous degree of long-fiber bundle, in the product in uneven distributions (see Fig. 3 b), finally cause the performance weakening the three-dimensional net structure skeleton effect of wild phase fiber in resin matrix, still the requirement of quality can not be met.For long fiber reinforced plastics pellet (LFT-G), as shown in Figure 3 c, visible, Fig. 3 c is consistent with the schematic diagram of Fig. 3 b for the obtained product profile in kind of the melt impregnation system of this structure, the monofilament of long-fiber bundle is only dispersed in the side of product, in uneven distributions.
Up to the present, melt impregnation is utilized to produce in the technology of Long-fiber-reinforced thermoplastics, there is not yet and can improve long stapled dipping effect, make the long fibre monofilament in final products can infiltrate (long fibre monofilament is uniformly distributed completely in thermoplastic resin) cmpletely in thermoplastic resin, the report of impregnating speed can be improved again.
Utility model content
Still the fiber existed for structural designs such as existing melt impregnation system fixed bit structure and wheel train structures is lost greatly, infiltrate insufficient, the shortcoming of dispersing uniformity difference, the utility model provides a kind of driver element that utilizes to provide cover roller rotary power, the melt impregnation system making a concerted effort to promote slit medium-length fibre Shu Yundong between roller is produced by actuating sleeve roller is mutually chimeric, described melt impregnation system achieves simultaneously and reduces dipping process medium-length fibre Shu Houdu and strengthen long-fiber bundle monofilament dispersed homogeneous degree effect, reaching fiber loses few, infiltrate fully, be uniformly dispersed, the effect of high speed steady production.The melt impregnation system that the utility model provides can improve long stapled dipping effect simultaneously, make the long fibre monofilament in final products can infiltrate (long fibre monofilament is uniformly distributed completely in thermoplastic resin) cmpletely in thermoplastic resin, can impregnating speed be improved again, solve the still unsolved technical problem of prior art.
The technical solution adopted in the utility model is as follows: a kind of long-fiber bundle melt impregnation system, wherein:
Described dipping systems comprises driver element and paired actuating sleeve roller is overlapped at least one assembly, the power that described driver element provides described actuating sleeve roller to rotate, described actuating sleeve roller is made up of the first driven roller and the second driven roller, the slit passed through for long-fiber bundle is left between described first driven roller and the second driven roller, described first driven roller all contacts with by the long-fiber bundle in slit between roller when rotating with the second driven roller, and described first driven roller and the second driven roller are mutually chimeric produces the long-fiber bundle motion making a concerted effort to promote between roller in slit.
Further, described supporting paired actuating sleeve roller can be many groups, can be 2-6 group, preferably, can be 3-5 group.
Further, the first driven roller of described actuating sleeve roller and the second driven roller are incorgruous rotation.
Further, the rotating manner of the actuating sleeve roller between different groups can be identical, also can be contrary.
Further, described melt impregnation system can also comprise dipping cavity, long fibre access road, melt inlet mouth mould, outlet mouth mould.
Further, the axis of described first driven roller offers at least two external arc grooves, and the axis of described second driven roller offers at least two lnner arced slots mated with described first driven roller.
Further, the perspective plane of the arc groove of described actuating sleeve roller is embedded figure, in the preferred sine curve of described embedded figure, cosine curve, wave, semiellipse any one or multiple arbitrarily.When the first driven roller projecting figure is a certain particular sine curve, the second driven roller projecting figure is that this particular sine curve is to the corresponding sine curve moving horizontally π unit.
Further, the slit between described first driven roller and the second driven roller can regulate according to the thickness introducing long-fiber bundle, is 500 μm ~ 5mm as preferred slit sizes.
Further, the specification of described long-fiber bundle freely can customize by production requirement, as can be preferably 2400tex, 4800tex, 9600tex.
Further, the material of described long-fiber bundle can be selected from glass fibre, carbon fiber, aramid fiber, basalt fibre, metallic fiber, ceramic fibre, alumina fibre any one or multiple arbitrarily.
Further, driver element described in the utility model comprises the mechanism part such as gear-box, motor, frequency converter, gear, worm and gear, chain, connecting rod.
Further, dipping systems described in the utility model is made up of parts such as driver element, actuating sleeve roller, dipping cavity, long fibre access road, melt inlet mouth mould, outlet mouth moulds.
The utility model also provides a kind of long fiber reinforcement type composite production equipment, and described production equipment comprises foregoing various long-fiber bundle melt impregnation system.
Further, described production equipment can also comprise plasticizing apparatus, cooling device and gathering-device; Preferably, described production equipment can also comprise preheating pre-dispersing device, plasticizing apparatus, cooling device and gathering-device.Described preheating pre-dispersing device makes long-fiber bundle preheating and device fluffy in advance, and described preheating pre-dispersing device can be Heating roll, preheating sleeve, air separator etc.Described plasticizing apparatus is the device making solid-state thermoplastic resin become molten state, and described plasticizing apparatus can be single screw extrusion machine, double screw extruder, screw injection molding machine, plunger-type injection molding machine etc.Described gathering-device is the device being divided by long fiber composites different product form to carry out cutting or batching storage, and described gathering-device can be pelleter, up-coiler etc.
Melt impregnation system described in the utility model comprises dipping cavity, long fibre access road, melt inlet mouth mould, outlet mouth mould, described melt inlet mouth mould is communicated with described plasticizing apparatus end is straight, be fixed on the front end of described dipping cavity, described long fibre access road is located at and floods in plane that cavity has angle.
The utility model also provides a kind of long fiber reinforcement type composite, and described long fiber reinforcement type composite is obtained by foregoing production equipment.
Described long fiber reinforcement type composite can be, long fiber reinforced plastics pellet (LFT-G), straight forming reinforced plastics goods (LFT-D), fibrofelt reinforced plastics sheet material (GMT), continuous fiber thermoplastic prepreg tape (CFRT) and by other sorting techniques but in fact employ the utility model method produce long fiber reinforcement type composite.
Compared with prior art, the utility model has following beneficial effect:
1, driven roller of the present utility model is the active driven roller of dynamic transmission, and long-fiber bundle promotes motion by driven roller.First driven roller and the second driven roller are mutually chimeric produces the long-fiber bundle motion making a concerted effort to promote between roller in slit, effectively thick long-fiber bundle can be dispersed into long fibre monofilament ribbon, reach the object reducing fibre bundle thickness; Actuating sleeve roller provides rotary power by driver element, guarantees often to organize actuating sleeve roller stress equalization, undamped, ensure that melt fiber axis to flow stability, improve long-fiber bundle monofilament dispersed homogeneous degree; The long fibre monofilament in fiber reinforced thermoplastic resin composite can be made in thermoplastic resin to infiltrate (long fibre monofilament is uniformly distributed completely in thermoplastic resin), material (long fibre and the resin) time of staying short (impregnation chamber body length shortens nearly half) cmpletely, maximum impregnated wire speed can be realized, nearly one times is improved than conventional dipping systems (or dipping die head), dipping can be guaranteed fully simultaneously, ensure that continuous high speed, high-quality production.
2, the actuating sleeve roller of the first driven roller and the second driven roller composition, by changing inside and outside arc groove curved surface amplitude, realizing the open bundle of roll surface contact to fibre bundle optimum degree and disperseing, the balance while reducing fibre bundle thickness between controllable and wearing and tearing.
3, the actuating sleeve roller of the first driven roller and the second driven roller composition, by changing the inside and outside arc groove curved surface cycle, realize often restrainting long fibre and along independently peak valley direction advance, the stability of melt in fiber radial direction can both be ensured, improve long-fiber bundle monofilament dispersed homogeneous degree.
4, production equipment of the present utility model can additional draw-gear, closely long-fiber bundle is promoted with powerdriven driven roller, can realize the micro adjusting of dipping process, avoiding macroscopical tension force that remote additional draw-gear applies due to uncontrollable holding out against loses long stapled.
5, in above-mentioned the utility model, cavity is straight is communicated with for plasticizing apparatus and dipping, breaches melt in the past and is turned round by extruder and enter the technology limitation of dipping cavity, save extruder discharge pressure, ensure the equilibrium of melt uniformity and melt pressure; Structure achieves melt Conveying without dead angle, in dipping cavity, the time of staying is short, avoids xanthochromia to produce; Layout achieves the coaxial line integration of Long-fiber-reinforced thermoplastics production equipment, equipment takes up an area little, and space availability ratio is high.
Accompanying drawing explanation
Fig. 1 is fixed bit structure melt impregnation system: (a) typical fixed bit structural representation; B two kinds of typical products generalized sections that () is obtained.In figure, the long fibre monofilament that the representative of black round dot fully infiltrates, arrow represents the direction of motion of long-fiber bundle, and grey parts is pure resin.
Fig. 2 is wheel train structure melt impregnation system: the typical wheel train structure schematic diagram of (a) three kinds; B product generalized section that () is obtained; (c) LFT-G product profile in kind.In figure, the long fibre monofilament that the representative of black round dot fully infiltrates, white round dot represents the long fibre monofilament do not infiltrated, and arrow represents the direction of motion of long-fiber bundle, and grey parts is pure resin.
Fig. 3 is the melt impregnation system of other structures: (a) three kinds of typical structure schematic diagrames; B product generalized section that () is obtained; (c) LFT-G product profile in kind.In figure, the long fibre monofilament that the representative of black round dot fully infiltrates, grey parts is pure resin.
Fig. 4 is the utility model melt impregnation system: (a) structural representation; B product generalized section that () is obtained; (c) LFT-G product profile in kind.In figure, the long fibre monofilament that the representative of black round dot fully infiltrates, arrow represents the direction of motion of long-fiber bundle, and grey parts is pure resin.
Fig. 5 is the utility model melt impregnation system principle schematic diagram.In figure, the long fibre monofilament that the representative of black round dot fully infiltrates, white round dot represents the long fibre monofilament do not infiltrated, and grid point represents the long fibre monofilament of partial wetting.
Fig. 6 is the utility model long fiber reinforcement type composite production equipment schematic diagram.
Shown in figure,
1---long fibre; 11---outer layer fiber; 12---edge fibers; 13---inner fiber; 2---plasticizing apparatus; 3---melt impregnation system; 31---driver element; 32---dipping cavity; 33---actuating sleeve roller; 331---the first driven roller; 332---the second driven roller; 333---slit between roller; 4---cooling device; 5---gathering-device.
Detailed description of the invention
The utility model provides a kind of long-fiber bundle melt impregnation system, wherein:
Described dipping systems comprises driver element and paired actuating sleeve roller is overlapped at least one assembly, the power that described driver element provides described actuating sleeve roller to rotate, described actuating sleeve roller is made up of the first driven roller and the second driven roller, the slit passed through for long-fiber bundle is left between described first driven roller and the second driven roller, described first driven roller all contacts with by the long-fiber bundle in slit between roller when rotating with the second driven roller, and described first driven roller and the second driven roller are mutually chimeric produces the long-fiber bundle motion making a concerted effort to promote between roller in slit.
Further, described supporting paired actuating sleeve roller can be many groups, can be 2-6 group, preferably, can be 3-5 group.
Further, the first driven roller of described actuating sleeve roller and the second driven roller are incorgruous rotation.
Further, the rotating manner of the actuating sleeve roller between different groups can be identical, also can be contrary.
Further, described melt impregnation system can also comprise dipping cavity, long fibre access road, melt inlet mouth mould, outlet mouth mould.
Further, the axis of described first driven roller offers at least two external arc grooves, and the axis of described second driven roller offers at least two lnner arced slots mated with described first driven roller.
Further, the perspective plane of the arc groove of described actuating sleeve roller is embedded figure, in the preferred sine curve of described embedded figure, cosine curve, wave, semiellipse any one or multiple arbitrarily.When the first driven roller projecting figure is a certain particular sine curve, the second driven roller projecting figure is that this particular sine curve is to the corresponding sine curve moving horizontally π unit.
Further, the slit between described first driven roller and the second driven roller can regulate according to the thickness introducing long-fiber bundle, is 500 μm ~ 5mm as preferred slit sizes.
Further, the specification of described long-fiber bundle freely can customize by production requirement, as can be preferably 2400tex, 4800tex, 9600tex.
Further, the material of described long-fiber bundle can be selected from glass fibre, carbon fiber, aramid fiber, basalt fibre, metallic fiber, ceramic fibre, alumina fibre any one or multiple arbitrarily.
Further, driver element described in the utility model comprises the mechanism part such as gear-box, motor, frequency converter, gear, worm and gear, chain, connecting rod.
Further, dipping systems described in the utility model is made up of parts such as driver element, actuating sleeve roller, dipping cavity, long fibre access road, melt inlet mouth mould, outlet mouth moulds.
As Fig. 4, shown in Fig. 5, when adopting long-fiber bundle melt impregnation system of the present utility model to produce, long-fiber bundle contacts with the first driven roller and to enter between roller in slit, under tension, the outwards slippage under the squeezing action of inner fiber 13 and outer layer fiber 11 of the fiber 12 of fibre bundle edge, the filament strip (arrangement of a monofilament monofilament) being dispersed into the one fixed width of filament array is shown in Fig. 4 a, dipping is forced by the thermoplastic melt that in slit between roller, viscosity reduces because of Strong shear effect, then the moment that filament strip contacts with the second driven roller is restrained again boundling and is become circle bundle fiber bundle, now, original inner fiber contacted with the first driven roller has changed outer layer fiber when contacting with the second driven roller into, such warp too much organizes actuating sleeve roller, the bundle of opening that fibre bundle constantly carries out repeatedly disperses, convergence boundling, be melted resin fluid alternating impregnating outer fibre layer in it, reach fully infiltration and equally distributed effect and see Fig. 4 b, 4c.
Particularly,
The long-fiber bundle melt impregnation system that the utility model provides, comprises driver element and paired actuating sleeve roller is overlapped at least one assembly.Described driver element comprises the mechanism part such as gear-box, motor, frequency converter, gear, worm and gear, chain, connecting rod, the power that described driver element provides described actuating sleeve roller to rotate.Described supporting paired actuating sleeve roller is made up of the first driven roller and the second driven roller, the axis of described first driven roller offers at least two external arc grooves, the axis of described second driven roller offers at least two lnner arced slots mated with described first driven roller, the perspective plane of the arc groove of described actuating sleeve roller is embedded figure, in the preferred sine curve of described embedded figure, cosine curve, wave, semiellipse any one or multiple arbitrarily.Leave the slit passed through for long-fiber bundle between described first driven roller and the second driven roller, the slit between described first driven roller and the second driven roller can regulate according to the thickness introducing long-fiber bundle, is 500 μm ~ 5mm as preferred slit sizes.Described first driven roller all contacts with by the long-fiber bundle in slit between roller when rotating with the second driven roller, and described first driven roller and the second driven roller are mutually chimeric produces the long-fiber bundle motion making a concerted effort to promote between roller in slit.First driven roller of described actuating sleeve roller and the incorgruous rotation of the second driven roller.Described supporting paired actuating sleeve roller can be many groups, can be 2-6 group, preferably, can be 3-5 group.The rotating manner of the actuating sleeve roller between different group can be identical, also can be contrary.Described melt impregnation system can also comprise dipping cavity, long fibre access road, melt inlet mouth mould, outlet mouth mould.
Below in conjunction with specific embodiment, set forth the utility model further.Should be appreciated that, these embodiments are only not used in restriction scope of the present utility model for illustration of the utility model.In addition should be understood that those skilled in the art can make various changes or modifications the utility model after the content of reading instruction of the present utility model, these equivalent form of values fall within the application's appended claims limited range equally.
Embodiment 1
As shown in Figure 6, according to a kind of long-fiber bundle melt impregnation system of instruction structure of the present utility model, comprise driver element 31 and the dipping cavity 32 for providing actuating sleeve roller rotary power, described driver element comprises gear-box, motor, frequency converter, gear, worm and gear, chain, the mechanism part such as connecting rod, be provided with 3 assembly in described dipping cavity 32 and overlap paired actuating sleeve roller 33, actuating sleeve roller 33 is axially arranged with arc groove, its perspective plane figure is amplitude is 1mm, cycle be 6 sine curve, first driven roller of described supporting paired actuating sleeve roller rotates counterclockwise when working, second driven roller rotates clockwise, the rotating manner that paired actuating sleeve roller is overlapped in 3 assembly is identical.The sidewall of described dipping cavity 32 is respectively equipped with long fibre access road, melt inlet mouth mould and outlet mouth mould.
Produce 50% long glass fiber reinforced PP material, during production, 6 strands that the pre-heat treatment the are crossed 2400tex alkali-free long glass fibres bundles provided by the international compound company in Chongqing are incorporated into by long fibre access road in the dipping cavity accommodated for the good PP resin melt of the plasticizing of impregnation of fibers.According to the thickness of long-fiber bundle, between the roller arranging supporting paired actuating sleeve roller, slit is 500 μm, can contact with the second driven roller with the first driven roller when making long-fiber bundle enter slit between roller simultaneously.Arranging impregnated wire speed by frequency converter is 50m/min; starter; long-fiber bundle is under the impetus of actuating sleeve roller; alternately walk around every assembly successively and overlap slit and the second actuating sleeve roller between the first actuating sleeve roller of paired actuating sleeve roller, roller; then derive through outlet mouth mould; cross water cooling, to be cut into length be 12mm long glass fiber reinforced PP pellet for traction, pelleter, its performance refers to table 1.
Table 1,50% long glass fibres strengthen the contrast of PP plastics physical property
As seen from Table 1, adopt 50% long glass fibres of the utility model device fabrication to strengthen PP and expect grain, with representational on market, external import like product-long fiber reinforcement PP material (
sTAMAX50YM240) compare, the enhancing PP plastics of identical fibre content, mechanical property is all better than external import like product.And the length of the dipping cavity that the utility model uses is only 40cm (length of the dipping cavity of the melt impregnation system of prior art is at 80-100cm), greatly reduces device fabrication cost; Moreover impregnated wire speed brings up to 50m/min from the 20-30m/min of prior art, substantially reduce the time of staying of long fibre in cavity, avoid process melt heat ageing problem.
Embodiment 2
A kind of long-fiber bundle melt impregnation system of the present utility model, comprise driver element and the dipping cavity for providing actuating sleeve roller rotary power, described driver element comprises gear-box, motor, frequency converter, gear, worm and gear, chain, the mechanism part such as connecting rod, be provided with 4 assembly in described dipping cavity and overlap paired actuating sleeve roller, actuating sleeve roller is axially arranged with arc groove, its perspective plane figure is amplitude is 0.5mm, cycle be 4 sine curve, first driven roller of described supporting paired actuating sleeve roller rotates counterclockwise when working, second driven roller rotates clockwise, the rotating manner that paired actuating sleeve roller is overlapped in 4 assembly is contrary.The sidewall of described dipping cavity is respectively equipped with long fibre access road, melt inlet mouth mould and outlet mouth mould.
Produce 60% long glass fiber reinforced PA6 material, during production, 4 strands that the pre-heat treatment the are crossed 4800tex alkali-free long glass fibres bundles provided by the international compound company in Chongqing are incorporated into by long fibre access road in the dipping cavity accommodated for the good PA6 resin melt of the plasticizing of impregnation of fibers.According to the thickness of long-fiber bundle, between the roller arranging supporting paired actuating sleeve roller, slit is 1.0mm, can contact with the second driven roller with the first driven roller when making long-fiber bundle enter slit between roller simultaneously.Arranging impregnated wire speed by frequency converter is 40m/min; starter; long-fiber bundle is under the impetus of actuating sleeve roller; alternately walk around every assembly successively and overlap slit and the second actuating sleeve roller between the first actuating sleeve roller of paired actuating sleeve roller, roller; then derive through outlet mouth mould; cross water cooling, to be cut into length be 10mm long glass fiber reinforced PA6 pellet for traction, pelleter, its performance refers to table 2.
Table 2,60% long glass fibres strengthen the contrast of PA6 plastics physical property
As seen from Table 2, adopt 60% long glass fibres of the utility model device fabrication to strengthen PA6 and expect grain, with representational on market, external import like product---60% long glass fibres strengthen PA6 plastics (
pA6-GF60-01) compare, the enhancing PA6 plastics of identical fibre content, mechanical property is all better than external import like product.And the length of the dipping cavity that the utility model uses is only 40cm (length of the dipping cavity of the melt impregnation system of prior art is at 80-100cm), greatly reduces device fabrication cost; Moreover impregnated wire speed improves 30-50% than the impregnated wire speed of prior art, substantially reduce the time of staying of long fibre in cavity, avoid process melt heat ageing problem.
Embodiment 3
A kind of long-fiber bundle melt impregnation system that the utility model provides, comprise driver element and the dipping cavity for providing actuating sleeve roller rotary power, described driver element comprises gear-box, motor, frequency converter, gear, worm and gear, chain, the mechanism part such as connecting rod, be provided with 5 assembly in described dipping cavity and overlap paired actuating sleeve roller, actuating sleeve roller is axially arranged with arc groove, its perspective plane figure is amplitude is 1mm, cycle be 8 sine curve, first driven roller of described supporting paired actuating sleeve roller rotates counterclockwise when working, second driven roller rotates clockwise, the rotating manner that paired actuating sleeve roller is overlapped in 5 assembly is contrary.The sidewall of described dipping cavity is respectively equipped with long fibre access road, melt inlet mouth mould and outlet mouth mould, and its performance refers to table 3.
Produce 50% long glass fiber reinforced TPU (TPUE elastomeric material), during production, 8 strands that the pre-heat treatment the are crossed 9600tex alkali-free long glass fibres bundles provided by the international compound company in Chongqing are incorporated into by long fibre access road in the dipping cavity accommodated for the good TPU resin melt of the plasticizing of impregnation of fibers.According to the thickness of long-fiber bundle, between the roller arranging supporting paired actuating sleeve roller, slit is 5mm, can contact with the second driven roller with the first driven roller when making long-fiber bundle enter slit between roller simultaneously.Arranging impregnated wire speed by frequency converter is 40m/min; starter; long-fiber bundle is under the impetus of actuating sleeve roller; alternately walk around every assembly successively and overlap slit and the second actuating sleeve roller between the first actuating sleeve roller of paired actuating sleeve roller, roller; then derive through outlet mouth mould; cross water cooling, to be cut into length be 14mm long glass fiber reinforced TPU pellet for traction, pelleter, its performance refers to table 3.
Table 3,50% long glass fibres strengthen the contrast of TPU physical property
As seen from Table 3, adopt 50% long glass fibres of the utility model device fabrication to strengthen TPU pellet, with representational on market, external import like product---50% long glass fibres strengthen TPU pellet (
tPU-GF50-01-US) compare, the enhancing TPU pellet of identical fibre content, mechanical property is all better than external import like product.And the length of the dipping cavity that the utility model uses is only 40cm (length of the dipping cavity of the melt impregnation system of prior art is at 80-100cm), greatly reduces device fabrication cost; Moreover impregnated wire speed improves 30-50% than the impregnated wire speed of prior art, substantially reduce the time of staying of long fibre in cavity, avoid process melt heat ageing problem.
Claims (10)
1. a long-fiber bundle melt impregnation system, it is characterized in that: described dipping systems comprises driver element and paired actuating sleeve roller is overlapped at least one assembly, the power that described driver element provides described actuating sleeve roller to rotate, described actuating sleeve roller is made up of the first driven roller and the second driven roller, the slit passed through for long-fiber bundle is left between described first driven roller and the second driven roller, described first driven roller all contacts with by the long-fiber bundle in slit between roller when rotating with the second driven roller, described first driven roller and the second driven roller are mutually chimeric produces the long-fiber bundle motion making a concerted effort to promote between roller in slit.
2. long-fiber bundle melt impregnation system according to claim 1, is characterized in that: described melt impregnation system also comprises dipping cavity, long fibre access road, melt inlet mouth mould, outlet mouth mould further.
3. long-fiber bundle melt impregnation system according to claim 1 and 2, it is characterized in that: the axis of described first driven roller offers at least two external arc grooves, the axis of described second driven roller offers at least two lnner arced slots mated with described first driven roller.
4. long-fiber bundle melt impregnation system according to claim 1 and 2, it is characterized in that: the perspective plane of the arc groove of described actuating sleeve roller is embedded figure, described embedded figure be selected from sine curve, cosine curve, wave, semiellipse any one or multiple arbitrarily.
5. long-fiber bundle melt impregnation system according to claim 4, it is characterized in that: the first described driven roller projecting figure is a certain particular sine curve, the second described driven roller projecting figure is that this particular sine curve is to the corresponding sine curve moving horizontally π unit.
6. long-fiber bundle melt impregnation system according to claim 1 and 2, is characterized in that: the slit between described first driven roller and the second driven roller can regulate according to the thickness introducing long-fiber bundle, and preferred slit sizes is 500 μm ~ 5mm.
7. long-fiber bundle melt impregnation system according to claim 1 and 2, is characterized in that: described driver element comprises gear-box, motor, frequency converter, gear, worm and gear, chain, connecting rod.
8. a long fiber reinforcement type composite production equipment, is characterized in that: described production equipment comprises the long-fiber bundle melt impregnation system described in any one of claim 1-7.
9. long fiber reinforcement type composite production equipment according to claim 8, is characterized in that: described production equipment also comprises plasticizing apparatus, cooling device and gathering-device further.
10. long fiber reinforcement type composite production equipment according to claim 9, it is characterized in that: described melt impregnation system comprises dipping cavity, long fibre access road, melt inlet mouth mould, outlet mouth mould, described melt inlet mouth mould is communicated with described plasticizing apparatus end is straight, be fixed on the front end of described dipping cavity, described long fibre access road is located at and floods in plane that cavity has angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520764272.9U CN205097403U (en) | 2015-09-29 | 2015-09-29 | Long fiber is restrainted melting flooding system and is contained production facility of this system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520764272.9U CN205097403U (en) | 2015-09-29 | 2015-09-29 | Long fiber is restrainted melting flooding system and is contained production facility of this system |
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| CN205097403U true CN205097403U (en) | 2016-03-23 |
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|---|---|---|---|
| CN201520764272.9U Withdrawn - After Issue CN205097403U (en) | 2015-09-29 | 2015-09-29 | Long fiber is restrainted melting flooding system and is contained production facility of this system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105538538A (en) * | 2015-09-29 | 2016-05-04 | 本松工程塑料（杭州）有限公司 | Long fiber bundle melt impregnation system |
| CN113214565A (en) * | 2021-06-25 | 2021-08-06 | 浙江晟祺实业有限公司 | Novel layered material composite long glass fiber reinforced polypropylene composite material and preparation method thereof |
-
2015
- 2015-09-29 CN CN201520764272.9U patent/CN205097403U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105538538A (en) * | 2015-09-29 | 2016-05-04 | 本松工程塑料（杭州）有限公司 | Long fiber bundle melt impregnation system |
| CN105538538B (en) * | 2015-09-29 | 2018-08-21 | 杭州本松新材料技术股份有限公司 | A kind of long-fiber bundle melt impregnation system |
| CN113214565A (en) * | 2021-06-25 | 2021-08-06 | 浙江晟祺实业有限公司 | Novel layered material composite long glass fiber reinforced polypropylene composite material and preparation method thereof |
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