CN203752370U - Double-sided-melted impregnation equipment of continuous long fiber reinforced thermoplastic resin - Google Patents
Double-sided-melted impregnation equipment of continuous long fiber reinforced thermoplastic resin Download PDFInfo
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- CN203752370U CN203752370U CN201420048775.1U CN201420048775U CN203752370U CN 203752370 U CN203752370 U CN 203752370U CN 201420048775 U CN201420048775 U CN 201420048775U CN 203752370 U CN203752370 U CN 203752370U
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- 229920005989 resin Polymers 0.000 title claims abstract description 49
- 239000011347 resin Substances 0.000 title claims abstract description 49
- 238000005470 impregnation Methods 0.000 title claims abstract description 38
- 229920001431 Long-fiber-reinforced thermoplastic Polymers 0.000 title abstract description 3
- 239000000835 fiber Substances 0.000 claims abstract description 182
- 239000006185 dispersion Substances 0.000 claims abstract description 137
- 238000009826 distribution Methods 0.000 claims abstract description 25
- 239000000155 melt Substances 0.000 claims abstract description 24
- 229920005992 thermoplastic resin Polymers 0.000 claims description 33
- 239000011199 continuous fiber reinforced thermoplastic Substances 0.000 claims description 26
- 230000000694 effects Effects 0.000 abstract description 11
- 230000008595 infiltration Effects 0.000 abstract description 9
- 238000001764 infiltration Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 4
- 238000007599 discharging Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 230000035515 penetration Effects 0.000 abstract 1
- 238000007598 dipping method Methods 0.000 description 15
- 239000000047 product Substances 0.000 description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 239000008188 pellet Substances 0.000 description 3
- 238000005453 pelletization Methods 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920006324 polyoxymethylene Polymers 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000004781 supercooling Methods 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 239000012209 synthetic fiber Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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- Reinforced Plastic Materials (AREA)
Abstract
The utility model discloses double-sided-melted impregnation equipment of continuous long fiber reinforced thermoplastic resin. According to the double-sided-melted impregnation equipment, a fiber passage in a melt impregnation machine head is provided with a fiber pre-dispersion area, a resin fiber infiltration area and a fiber re-dispersion area, and a double-sided distribution flow passage is arranged in the resin fiber infiltration area and comprises an upper-layer distribution flow passage and a lower-layer distribution flow passage which are structurally symmetrical; a pre-dispersion device is arranged in the fiber pre-dispersion area, and a re-dispersion device is arranged in the fiber re-dispersion area. An impregnation method comprises the steps of firstly carrying out pre-dispersion and preheating on continuous long fibers, then, carrying out comprehensive wrapping and infiltration through the double-sided distribution flow passage, carrying out re-dispersion on the fibers, and then, discharging the fibers out of the fiber passage. The double-sided-melted impregnation equipment has the advantages that the impregnation effect on continuous long fiber bundles of resin melt can be more balanced, the aims of complete coating, penetration and infiltration are achieved, the phenomenon that single sides of the fibers are not tightly coated is avoided, long-time, continuous and stable production is realized, and the yield and quality of products are greatly improved.
Description
Technical field
The utility model relates to thermoplastic resin molded technical field, particularly a kind of two-sided melt impregnation equipment of continuous fiber reinforced thermoplastic resin.
Background technology
Continuous fiber reinforced thermoplastic resin is a kind of taking thermoplastic resin as matrix, and fortifying fibre unidirectional array and the continuous intermediate for the preparation of composite, have a wide range of applications in fields such as traffic, automobile, oil, natural gas or buildings.Especially in automotive field, continuous fiber reinforced thermoplastic resin can obtain long fiber reinforcement pellet through mouth mode pulling, the pelletizing of given shape, form long fiber reinforcement product through secondary injection molding again, extensively replace the various hardwares of automotive interior, as front-end module, seat support, instrument board framework and door-plate module etc., reach to mould Dai Gang, reduce discharging the object of environmental protection.But in actual production process, usually due to the unreasonable dipping effect that affects continuous fiber bundle of melt impregnation device structure, the even frequent bar that occurs to break etc. is produced abnormal phenomenon, greatly reduces output and the quality of product.
As: a kind of long fiber reinforced plastics production fibre bundle fuse dipping die head is disclosed in the patent application that publication number is CN101695873A, this equipment adopts has medium-altitude contact godet and noncontact godet pair, the radial expansion of reinforcing fiber tow and plastic melt, toward the Radial Flow of fibre bundle, reduce the friction of fibre single thread and lose.In the die cavity that is full of melt, fibre bundle is alternately walked around the circle drum body of contact godet under tension force traction, pass from the gap between noncontact godet pair, circle drum body impels and is subject to fibre bundle that traction slips over its curved surface to both sides Quick Extended, increases the contact-making surface of fibre bundle and plastic melt; Noncontact godet evokes melt eddy flow, presses to through godet the fibre bundle between slit, promotes plastic melt toward fibre bundle Radial Flow, improves dipping effect.But in actual applications, the problem of this equipment maximum is to control resin melt and enters equably die cavity, cannot make whole cavity pressure keep stable, the too high risk of local pressure strengthens, and is therefore also difficult to the dipping effect that reaches desirable.
Publication number is the former that discloses a kind of fiber reinforced thermoplastic resin in the patent application of CN102107536A, this equipment is to adopt the mode of fiber duct to pass into pending fiber, every bundle long fibre can both be advanced along direction independently, avoid the interference between fibre bundle; Adopt pre-fluffy and pre-heating system, and add the jockey pulley of special shape, ensure long stapled dipping effect, introduce resin melt runner at the downside of fibre bundle, and adopt resin melt feeding manner from the bottom up.But in this equipment, melt is emerged from long-fiber bundle is one-sided, melt is difficult to the coated fibre bundle that infiltrates comprehensively, and melt does not have unified Distribution system of flow channel, be difficult to ensure that the melt pressure in whole die cavity is comparatively balanced with consistent, make continuous fiber bundle when by impregnating equipment, the fluctuation of disconnected bar or fiber content very easily occurs due to the fluctuation of resin melt flow.
Publication number is to disclose the melt impregnation head that a kind of continuous fiber reinforced thermoplastic resin moulding is used in the patent application of CN102848489A, head inside is provided with melt and distributes runner and dipping runner, melt distributes each discharging opening of runner to be connected with dipping runner by discharge roller, the two ends of dipping runner arrange respectively access road and the exit passageway of fibre bundle turnover use, between access road and discharge roller, at least one group of jockey pulley is all set between exit passageway and discharge roller, wherein, discharge roller is used for connecting melt and distributes runner and dipping runner, plays a transition role.The existing larger improvement of this equipment melt impregnation equipment relatively before, but still come with some shortcomings.First, resin melt is to emerge from discharge roller downside equally, is difficult to the coated fibre bundle that infiltrates comprehensively, and each root fiber exists one-sided first infiltration, the inhomogeneities infiltrating after opposite side; Secondly, this equipment using the summit of discharge roller as fiber with the resin place infiltrating of meeting, because the summit of discharge roller is crest place, tension force maximum, although can fortifying fibre dipping effect, increased the risk of fibrous fracture, the phenomenon of the bar that easily occurs to break; Again, this equipment is divided into two resin melt outlet, allows long-fiber bundle that twice infiltration successively occurs, and the melt resistance difference of two runners, may cause the inhomogeneities of melt feeding, cause larger dipping difference, finally affect fiber content and product appearance.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of two-sided melt impregnation equipment of continuous fiber reinforced thermoplastic resin is provided, this equipment can make resin melt resin infiltrate in pars fibrosa flow more even, more balanced to the dipping effect of continuous fiber bundle, can long-time continuous stable produce, the yield and quality of product is all largely increased.
The technical solution of the utility model is: a kind of two-sided melt impregnation equipment of continuous fiber reinforced thermoplastic resin, fiber channel in melt impregnation head comprises that the pre-dispersed district of fiber, the resin that connect successively infiltrate pars fibrosa and fiber dispersion area again, and the pre-dispersed district of fiber, resin infiltrate pars fibrosa and fiber communicates dispersion area more continuously; Resin infiltrates in pars fibrosa and is provided with the two-sided distribution runner that resin melt is divided adapted, two-sided distribution runner comprises that upper strata distribution runner and the lower floor of symmetrical configuration distribute runner, upper strata distributes the melt outlet of runner to join with the upper surface of continuous fiber, and lower floor distributes the melt outlet of runner to join with the lower surface of continuous fiber; Fiber is provided with pre-dispersing device in pre-dispersed district, and fiber is provided with dispersal device again in dispersion area again.
Described resin infiltrates in pars fibrosa, according to the throughput direction of continuous fiber, the rear side of two-sided distribution runner is also provided with at least one group of stack group, every group of stack group comprises 2 stacks, 2 stacks are symmetrically set in the both sides up and down of continuous fiber, and the minimum distance on 2 stack surfaces is 1～15mm; Each stack is the smooth roll that inside is provided with electrically heated rod, and heating-up temperature is 60～400 DEG C, and the diameter of each stack is 5～30mm.The setting of stack group, can realize after resin melt just infiltrates continuous fiber and immediately it be carried out to smooth processing.
Described upper strata distributes runner and lower floor to distribute flow passage structure symmetry, is respectively the version of multistage branch, comprises multistage branch's runner, and the cylinder of branch's runner at different levels is cylindrical runner.
In described multistage branch's runner, the affluent-dividing road that is positioned at same one-level has identical diameter and identical melt flows resistance, and the diameter of branches at different levels runner is 1～80mm.
Described upper strata distributes the melt outlet of runner to distribute the melt export structure of runner identical with lower floor, is the one in extended pattern outlet, Parallel exporting or shrinkage type outlet; It is 1～20mm that the diameter of the melt outlet of runner and the melt outlet of lower floor's distribution runner is distributed on upper strata.2 melts that symmetry is positioned at a certain continuous fiber upper and lower surface export the runner center line at places through the center of this continuous fiber.
Described fiber is again in dispersion area, then dispersal device can have following several version:
(1) described fiber is again in dispersion area, dispersal device comprises dispersion block and lower dispersion block again, the top of continuous fiber is provided with dispersion block, the below of continuous fiber is provided with lower dispersion block, upper dispersion block and lower dispersion block be alternately distributed and equidistantly arrange, it is wavy that fiber channel is, with the joint on upper dispersion block surface be trough, with the joint on lower dispersion block surface be crest, the distance between adjacent peaks and trough is 1～15mm.
Upper dispersion block is identical with the structure of lower dispersion block, is trapezoid cross section, and trapezoidal upper bottom side length is 10～500mm, and the trapezoidal length of side of going to the bottom is 20～1000mm, and trapezoidal height is 10～100mm, and trapezoidal each corner is the fillet of 90～150 °.
(2) described fiber is again in dispersion area, dispersal device comprises dispersion roller and lower dispersion roller again, and the top of continuous fiber is provided with dispersion roller, and the below of continuous fiber is provided with lower dispersion roller, upper dispersion roller and lower dispersion roller are alternately distributed and equidistantly arrange, and it is wavy that fiber channel is;
Upper dispersion roller is identical with the structure of lower dispersion roller, is the smooth roll of square-section, and square each length of side is 5～60mm, and square each corner is the fillet of 90～150 °; Each upper dispersion roller and lower dispersion roller inside are respectively equipped with electrically heated rod, and heating-up temperature is 60～400 DEG C; Between adjacent upper dispersion roller and lower dispersion roller, the centre-to-centre spacing of horizontal direction is 50～200mm, and the centre-to-centre spacing of vertical direction is 0～150mm, and the line of centres of horizontal direction and the angle of horizontal plane are 0～± 80 °.
(3) described fiber is again in dispersion area, dispersal device comprises dispersion roller and lower dispersion block again, the top of continuous fiber is provided with dispersion roller, the below of continuous fiber is provided with lower dispersion block, upper dispersion roller and lower dispersion block are alternately distributed and equidistantly arrange, it is wavy that fiber channel is, and upper dispersion roller is placed in trough, and the distance of outer ledge and trough is 1～15mm;
Wherein, the smooth roll that upper dispersion roller is square-section, square each length of side is 5～60mm, square each corner is the fillet of 90～150 °; Each upper dispersion roller and dispersion roller inside are respectively equipped with electrically heated rod, and heating-up temperature is 60～400 DEG C;
The cross section of lower dispersion block is trapezoid cross section, and trapezoidal upper bottom side length is 10～500mm, and the trapezoidal length of side of going to the bottom is 20～1000mm, and trapezoidal height is 10～100mm, and trapezoidal each corner is the fillet of 90～150 °.
In the pre-dispersed district of described fiber, pre-dispersing device comprises at least 2 group jockey pulley groups, and each jockey pulley group comprises upper tension roller and lower tension roller, and upper tension roller is located at continuous fiber top, lower tension roller is located at continuous fiber below, and upper tension roller and lower tension roller are alternately distributed and equidistantly arrange;
The structure of upper tension roller and lower tension roller is identical, is the smooth roll of circular cross-section, and circular diameter is 5～60mm; Each upper tension roller and lower tension roller inside are respectively equipped with electrically heated rod, and heating-up temperature is 60～400 DEG C; Between adjacent upper dispersion roller and lower dispersion roller, the centre-to-centre spacing of horizontal direction is 50～200mm, and the centre-to-centre spacing of vertical direction is 40～150mm, and the line of centres of horizontal direction and the angle of horizontal plane are 0～± 80 °.
The end outlet cross section of described fiber channel is rectangle, ellipse or circular; When the end outlet cross section of fiber channel is rectangle, the width of rectangle is 1～10mm, is highly 1～10mm; When the end outlet cross section of fiber channel is oval, oval-shaped major axis is 1～10mm, and minor axis is 1～10mm; When the end outlet cross section of fiber channel is circular, circular diameter is 1～10mm.
A kind of two-sided melt impregnation method that can realize continuous fiber reinforced thermoplastic resin according to the said equipment, comprises the following steps:
(1) continuous fiber enters after fiber channel, is introduced in the pre-dispersed district of fiber, by pre-dispersing device, continuous fiber is carried out pre-dispersed and is preheated;
(2) enter resin through pre-dispersed and pre-warmed continuous fiber and infiltrate pars fibrosa, resin melt is flowed out by two-sided distribution runner, infiltrate from upper and lower both sides simultaneously and penetrate continuous fiber, make continuous fiber by resin melt parcel and infiltration comprehensively, then through stack group, the resin melt content of continuous fiber is carried out to smooth equilibrium;
(3) continuous fiber after infiltrating enters fiber dispersion area again, carries out fiber dispersion again by dispersal device again, finally sends fiber channel.
In described step (1), pre-warmed temperature is 60～400 DEG C;
Described continuous fiber is one or more in glass fibre, carbon fiber, synthetic fibers or string;
Described resin melt is thermoplastic resin, specifically can be one or more in polypropylene, nylon, polyformaldehyde, polyester or polyurethane.
Pull out from equipment outlet the continuous fiber reinforced thermoplastic resin obtaining, finally after supercooling, pelletizing, obtain the fiber reinforced thermoplastic resin pellet that length is 6～25mm.
In order to make the dipping effect of continuous fiber bundle more even, can heat block be set in equipment surrounding, provide the constant temperature of zones of different to protect by heat block, heating-up temperature is 60～400 DEG C.
The utility model, with respect to prior art, has following beneficial effect:
1, the two-sided melt impregnation method of this continuous fiber reinforced thermoplastic resin is by first carrying out pre-dispersed in the pre-dispersed district of fiber to continuous fiber, then infiltrate pars fibrosa at resin continuous fiber is carried out to two-sided infiltration, finally dispersion area continuous fiber is carried out to dispersion treatment more again at fiber, can make resin melt resin infiltrate in pars fibrosa flow more even, more balanced to the dipping effect of continuous fiber bundle, realize long-time continuous stable and produce, the yield and quality of product is all largely increased.
2, the two-sided melt impregnation equipment of this continuous fiber reinforced thermoplastic resin is by infiltrating at resin the two-sided distribution runner that symmetrical configuration is set in pars fibrosa, compare the distribution runner of one side, its advantage has: the one, and all runners at the same level have identical diameter and identical melt resistance, can guarantee the unobstructed of the interior whole flow field of impregnation zone; The 2nd, resin melt infiltrates fibre bundle simultaneously from two sides, reaches object completely coated, that permeate and infiltrate, avoids occurring the one-sided coated not tight phenomenon of fiber.
3, the two-sided melt impregnation equipment of this continuous fiber reinforced thermoplastic resin also infiltrates in pars fibrosa stack group is set at resin, after continuous fiber is infiltrated by resin melt, enter immediately stack and carry out smooth processing, effectively avoid occurring the phenomenon of resin melt skewness.
4, in the two-sided melt impregnation equipment of this continuous fiber reinforced thermoplastic resin, fiber arranges dispersal device again in dispersion area again, and the version that adopts two sides dispersion block to be set or to disperse roller, make the fiber channel in this region form wavy, can improve the effect of impregnation of continuous fiber, reduce fiber breakage, improve the stability of producing under high hauling speed.
Brief description of the drawings
Fig. 1 is the principle schematic of this two-sided melt impregnation equipment.
Fig. 2 is the structural representation of two-sided distribution runner in this two-sided melt impregnation equipment.
Fig. 3 is the structural representation of dispersal device again in embodiment 1.
Fig. 4 is the structural representation of dispersal device again in embodiment 2.
Fig. 5 is the structural representation of dispersal device again in embodiment 3.
Fig. 6 is the structural representation of the end outlet cross section of fiber channel while being ellipse.
Fig. 7 is the structural representation of the end outlet cross section of fiber channel while being circle.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but embodiment of the present utility model is not limited to this.
Embodiment 1
The two-sided melt impregnation equipment of a kind of continuous fiber reinforced thermoplastic resin of the present embodiment, as shown in Figure 1, fiber channel 12 in melt impregnation head 10 comprises that the pre-dispersed district A of fiber, the resin that connect successively infiltrate pars fibrosa B and fiber dispersion area C again, and the pre-dispersed district of fiber, resin infiltrate pars fibrosa and fiber communicates dispersion area more continuously; Resin infiltrates in pars fibrosa and is provided with the two-sided distribution runner 1 that resin melt is divided adapted, as shown in Figure 2, two-sided distribution runner comprises that upper strata distribution runner 1-1 and the lower floor of symmetrical configuration distribute runner 1-2, upper strata distributes the melt outlet of runner to join with the upper surface of continuous fiber 2, and lower floor distributes the melt outlet of runner to join with the lower surface of continuous fiber 2; Fiber is provided with pre-dispersing device in pre-dispersed district, and fiber is provided with dispersal device again in dispersion area again.
As shown in Figure 1, resin infiltrates in pars fibrosa, according to the throughput direction of continuous fiber, the rear side of two-sided distribution runner is also provided with at least one group of stack group 3, every group of stack group comprises 2 stacks, 2 stacks are symmetrically set in the both sides up and down of continuous fiber, and the minimum distance on 2 stack surfaces is 1～15mm; Each stack is the smooth roll that inside is provided with electrically heated rod, and heating-up temperature is 60～400 DEG C, and the diameter of each stack is 5～30mm.The setting of stack group, can realize after resin melt just infiltrates continuous fiber and immediately it be carried out to smooth processing.
As shown in Figure 2, upper strata distributes runner and lower floor to distribute flow passage structure symmetry, is respectively the version of multistage branch, comprises multistage branch's runner, and the cylinder of branch's runner at different levels is cylindrical runner.
In multistage branch's runner, the affluent-dividing road that is positioned at same one-level has identical diameter and identical melt flows resistance, and the diameter of branches at different levels runner is 1～80mm.
Upper strata distributes the melt outlet of runner to distribute the melt export structure of runner identical with lower floor, is the one in extended pattern outlet, Parallel exporting or shrinkage type outlet; It is 1～20mm that the diameter of the melt outlet of runner and the melt outlet of lower floor's distribution runner is distributed on upper strata.2 melts that symmetry is positioned at a certain continuous fiber upper and lower surface export the runner center line at places through the center of this continuous fiber.
As shown in Figure 3, fiber is again in dispersion area, dispersal device comprises dispersion block 4 and lower dispersion block 5 again, the top of continuous fiber is provided with dispersion block, and the below of continuous fiber is provided with lower dispersion block, and upper dispersion block and lower dispersion block are alternately distributed and equidistantly arrange, it is wavy that fiber channel is, with the joint on upper dispersion block surface be trough, with the joint on lower dispersion block surface be crest, the distance between adjacent peaks and trough is 1～15mm.
Upper dispersion block is identical with the structure of lower dispersion block, is trapezoid cross section, and trapezoidal upper bottom side length is 10～500mm, and the trapezoidal length of side of going to the bottom is 20～1000mm, and trapezoidal height is 10～100mm, and trapezoidal each corner is the fillet of 90～150 °.
As shown in Figure 1, in the pre-dispersed district of fiber, pre-dispersing device comprises at least 2 group jockey pulley groups, each jockey pulley group comprises upper tension roller 6 and lower tension roller 7, upper tension roller is located at continuous fiber top, lower tension roller is located at continuous fiber below, and upper tension roller and lower tension roller are alternately distributed and equidistantly arrange;
The structure of upper tension roller and lower tension roller is identical, is the smooth roll of circular cross-section, and circular diameter is 5～60mm; Each upper tension roller and lower tension roller inside are respectively equipped with electrically heated rod, and heating-up temperature is 60～400 DEG C; Between adjacent upper dispersion roller and lower dispersion roller, the centre-to-centre spacing of horizontal direction is 50～200mm, and the centre-to-centre spacing of vertical direction is 40～150mm, and the line of centres of horizontal direction and the angle of horizontal plane are 0～± 80 °.
According to the cross sectional shape needs of continuous fiber, end outlet 11 cross sections of fiber channel are rectangle, ellipse (as shown in Figure 6) or circle (as shown in Figure 7); When the end outlet cross section of fiber channel is rectangle, the width of rectangle is 1～10mm, is highly 1～10mm; When the end outlet cross section of fiber channel is oval, oval-shaped major axis is 1～10mm, and minor axis is 1～10mm; When the end outlet cross section of fiber channel is circular, circular diameter is 1～10mm.
The present embodiment is realized a kind of two-sided melt impregnation method of continuous fiber reinforced thermoplastic resin by the said equipment, comprise the following steps:
(1) continuous fiber enters after fiber channel, is introduced in the pre-dispersed district of fiber, by pre-dispersing device, continuous fiber is carried out pre-dispersed and is preheated;
(2) enter resin through pre-dispersed and pre-warmed continuous fiber and infiltrate pars fibrosa, resin melt is flowed out by two-sided distribution runner, infiltrate from upper and lower both sides simultaneously and penetrate continuous fiber, make continuous fiber by resin melt parcel and infiltration comprehensively, then through stack group, the resin melt content of continuous fiber is carried out to smooth equilibrium;
(3) continuous fiber after infiltrating enters fiber dispersion area again, carries out fiber dispersion again by dispersal device again, finally sends fiber channel.
In step (1), pre-warmed temperature is 60～400 DEG C;
Continuous fiber is one or more in glass fibre, carbon fiber, synthetic fibers or string;
Resin melt is thermoplastic resin, specifically can be one or more in polypropylene, nylon, polyformaldehyde, polyester or polyurethane.
Pull out from equipment outlet the continuous fiber reinforced thermoplastic resin obtaining, finally after supercooling, pelletizing, obtain the fiber reinforced thermoplastic resin pellet that length is 6～25mm.
In order to make the dipping effect of continuous fiber bundle more even, can heat block be set in equipment surrounding, provide the constant temperature of zones of different to protect by heat block, heating-up temperature is 60～400 DEG C.
Embodiment 2
The two-sided melt impregnation equipment of a kind of continuous fiber reinforced thermoplastic resin of the present embodiment, compare with embodiment 1, its difference is: as shown in Figure 4, fiber is again in dispersion area, dispersal device comprises dispersion roller 8 and lower dispersion roller 9 again, and the top of continuous fiber is provided with dispersion roller, and the below of continuous fiber is provided with lower dispersion roller, upper dispersion roller and lower dispersion roller are alternately distributed and equidistantly arrange, and it is wavy that fiber channel is;
Upper dispersion roller is identical with the structure of lower dispersion roller, is the smooth roll of square-section, and square each length of side is 5～60mm, and square each corner is the fillet of 90～150 °; Each upper dispersion roller and lower dispersion roller inside are respectively equipped with electrically heated rod, and heating-up temperature is 60～400 DEG C; Between adjacent upper dispersion roller and lower dispersion roller, the centre-to-centre spacing of horizontal direction is 50～200mm, and the centre-to-centre spacing of vertical direction is 0～150mm, and the line of centres of horizontal direction and the angle of horizontal plane are 0～± 80 °.
Embodiment 3
The two-sided melt impregnation equipment of a kind of continuous fiber reinforced thermoplastic resin of the present embodiment, compare with embodiment 1, its difference is: as shown in Figure 5, fiber is again in dispersion area, dispersal device comprises dispersion roller 8 and lower dispersion block 5 again, the top of continuous fiber is provided with dispersion roller, the below of continuous fiber is provided with lower dispersion block, upper dispersion roller and lower dispersion block are alternately distributed and equidistantly arrange, it is wavy that fiber channel is, upper dispersion roller is placed in trough, and the distance of outer ledge and trough is 1～15mm;
Wherein, the smooth roll that upper dispersion roller is square-section, square each length of side is 5～60mm, square each corner is the fillet of 90～150 °; Each upper dispersion roller and dispersion roller inside are respectively equipped with electrically heated rod, and heating-up temperature is 60～400 DEG C;
The cross section of lower dispersion block is trapezoid cross section, and trapezoidal upper bottom side length is 10～500mm, and the trapezoidal length of side of going to the bottom is 20～1000mm, and trapezoidal height is 10～100mm, and trapezoidal each corner is the fillet of 90～150 °.
As mentioned above, just can realize preferably the utility model, above-described embodiment is only preferred embodiment of the present utility model, is not used for limiting practical range of the present utility model; Be that all equalizations of doing according to the utility model content change and modify, all by the utility model claim scope required for protection is contained.
Claims (8)
1. the two-sided melt impregnation equipment of continuous fiber reinforced thermoplastic resin, it is characterized in that, fiber channel in melt impregnation head comprises that the pre-dispersed district of fiber, the resin that connect successively infiltrate pars fibrosa and fiber dispersion area again, and the pre-dispersed district of fiber, resin infiltrate pars fibrosa and fiber communicates dispersion area more continuously; Resin infiltrates in pars fibrosa and is provided with the two-sided distribution runner that resin melt is divided adapted, two-sided distribution runner comprises that upper strata distribution runner and the lower floor of symmetrical configuration distribute runner, upper strata distributes the melt outlet of runner to join with the upper surface of continuous fiber, and lower floor distributes the melt outlet of runner to join with the lower surface of continuous fiber; Fiber is provided with pre-dispersing device in pre-dispersed district, and fiber is provided with dispersal device again in dispersion area again.
2. the two-sided melt impregnation equipment of continuous fiber reinforced thermoplastic resin according to claim 1, it is characterized in that, described resin infiltrates in pars fibrosa, according to the throughput direction of continuous fiber, the rear side of two-sided distribution runner is also provided with at least one group of stack group, every group of stack group comprises 2 stacks, and 2 stacks are symmetrically set in the both sides up and down of continuous fiber, and the minimum distance on 2 stack surfaces is 1～15mm; Each stack is the smooth roll that inside is provided with electrically heated rod, and the diameter of each stack is 5～30mm.
3. the two-sided melt impregnation equipment of continuous fiber reinforced thermoplastic resin according to claim 1, it is characterized in that, described upper strata distributes runner and lower floor to distribute flow passage structure symmetry, be respectively the version of multistage branch, comprise multistage branch's runner, the cylinder of branch's runner at different levels is cylindrical runner;
In multistage branch's runner, the affluent-dividing road that is positioned at same one-level has identical diameter and identical melt flows resistance, and the diameter of branches at different levels runner is 1～80mm.
4. the two-sided melt impregnation equipment of continuous fiber reinforced thermoplastic resin according to claim 1, it is characterized in that, described upper strata distributes the melt outlet of runner to distribute the melt export structure of runner identical with lower floor, is the one in extended pattern outlet, Parallel exporting or shrinkage type outlet; It is 1～20mm that the diameter of the melt outlet of runner and the melt outlet of lower floor's distribution runner is distributed on upper strata.
5. the two-sided melt impregnation equipment of continuous fiber reinforced thermoplastic resin according to claim 1, it is characterized in that, described fiber is again in dispersion area, dispersal device comprises dispersion block and lower dispersion block again, the top of continuous fiber is provided with dispersion block, the below of continuous fiber is provided with lower dispersion block, and upper dispersion block and lower dispersion block are alternately distributed and equidistantly arrange, and it is wavy that fiber channel is;
Upper dispersion block is identical with the structure of lower dispersion block, is trapezoid cross section, and trapezoidal upper bottom side length is 10～500mm, and the trapezoidal length of side of going to the bottom is 20～1000mm, and trapezoidal height is 10～100mm, and trapezoidal each corner is the fillet of 90～150 °.
6. the two-sided melt impregnation equipment of continuous fiber reinforced thermoplastic resin according to claim 1, it is characterized in that, described fiber is again in dispersion area, dispersal device comprises dispersion roller and lower dispersion roller again, the top of continuous fiber is provided with dispersion roller, the below of continuous fiber is provided with lower dispersion roller, and upper dispersion roller and lower dispersion roller are alternately distributed and equidistantly arrange, and it is wavy that fiber channel is;
Upper dispersion roller is identical with the structure of lower dispersion roller, is the smooth roll of square-section, and square each length of side is 5～60mm, and square each corner is the fillet of 90～150 °; Each upper dispersion roller and lower dispersion roller inside are respectively equipped with electrically heated rod; Between adjacent upper dispersion roller and lower dispersion roller, the centre-to-centre spacing of horizontal direction is 50～200mm, and the centre-to-centre spacing of vertical direction is 0～150mm, and the line of centres of horizontal direction and the angle of horizontal plane are 0～± 80 °.
7. the two-sided melt impregnation equipment of continuous fiber reinforced thermoplastic resin according to claim 1, it is characterized in that, described fiber is again in dispersion area, dispersal device comprises dispersion roller and lower dispersion block again, the top of continuous fiber is provided with dispersion roller, the below of continuous fiber is provided with lower dispersion block, and upper dispersion roller and lower dispersion block are alternately distributed and equidistantly arrange, and it is wavy that fiber channel is;
Wherein, the smooth roll that upper dispersion roller is square-section, square each length of side is 5～60mm, square each corner is the fillet of 90～150 °; Each upper dispersion roller and dispersion roller inside are respectively equipped with electrically heated rod;
The cross section of lower dispersion block is trapezoid cross section, and trapezoidal upper bottom side length is 10～500mm, and the trapezoidal length of side of going to the bottom is 20～1000mm, and trapezoidal height is 10～100mm, and trapezoidal each corner is the fillet of 90～150 °.
8. the two-sided melt impregnation equipment of continuous fiber reinforced thermoplastic resin according to claim 1, it is characterized in that, in the pre-dispersed district of described fiber, pre-dispersing device comprises at least 2 group jockey pulley groups, each jockey pulley group comprises upper tension roller and lower tension roller, upper tension roller is located at continuous fiber top, and lower tension roller is located at continuous fiber below, and upper tension roller and lower tension roller are alternately distributed and equidistantly arrange;
The structure of upper tension roller and lower tension roller is identical, is the smooth roll of circular cross-section, and circular diameter is 5～60mm; Each upper tension roller and lower tension roller inside are respectively equipped with electrically heated rod; Between adjacent upper dispersion roller and lower dispersion roller, the centre-to-centre spacing of horizontal direction is 50～200mm, and the centre-to-centre spacing of vertical direction is 40～150mm, and the line of centres of horizontal direction and the angle of horizontal plane are 0～± 80 °.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420048775.1U CN203752370U (en) | 2014-01-25 | 2014-01-25 | Double-sided-melted impregnation equipment of continuous long fiber reinforced thermoplastic resin |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420048775.1U CN203752370U (en) | 2014-01-25 | 2014-01-25 | Double-sided-melted impregnation equipment of continuous long fiber reinforced thermoplastic resin |
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| CN203752370U true CN203752370U (en) | 2014-08-06 |
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| CN201420048775.1U Expired - Lifetime CN203752370U (en) | 2014-01-25 | 2014-01-25 | Double-sided-melted impregnation equipment of continuous long fiber reinforced thermoplastic resin |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103802231A (en) * | 2014-01-25 | 2014-05-21 | 广州金发碳纤维新材料发展有限公司 | Double-sided melting and impregnating equipment and method for continuous fiber-reinforcing adhesive tape |
| CN104341680A (en) * | 2014-10-28 | 2015-02-11 | 天津金发新材料有限公司 | Creep-resistant long glass fiber reinforced polypropylene material and preparation method and application thereof |
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| CN104341680A (en) * | 2014-10-28 | 2015-02-11 | 天津金发新材料有限公司 | Creep-resistant long glass fiber reinforced polypropylene material and preparation method and application thereof |
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| CN111212714B (en) * | 2017-10-16 | 2022-05-10 | 费德玛有限责任两合公司 | Device and method for impregnating a fiber strand with a polymer melt |
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| US20190184653A1 (en) * | 2017-12-18 | 2019-06-20 | Kingfa Sci. & Tech. Co., Ltd. | Alternating pressure melt impregnation device and melt impregnation method using the same |
| KR20190073232A (en) * | 2017-12-18 | 2019-06-26 | 킹파 사이언스 앤 테크놀로지 컴퍼니 리미티드 | Hot-dipped facility and hot-dipped method thereof |
| KR20190073233A (en) * | 2017-12-18 | 2019-06-26 | 킹파 사이언스 앤 테크놀로지 컴퍼니 리미티드 | Hot-dipped facility and hot-dipped method thereof |
| KR102019787B1 (en) | 2017-12-18 | 2019-09-09 | 킹파 사이언스 앤 테크놀로지 컴퍼니 리미티드 | Hot-dipped facility and hot-dipped method thereof |
| KR102019784B1 (en) | 2017-12-18 | 2019-09-09 | 킹파 사이언스 앤 테크놀로지 컴퍼니 리미티드 | Hot-dipped facility and hot-dipped method thereof |
| US10744726B2 (en) * | 2017-12-18 | 2020-08-18 | Kingfa Sci. & Tech. Co., Ltd. | Alternating pressure melt impregnation device and melt impregnation method using the same |
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