CN101432107A - Apparatus for production of fiber-reinforced resin strand - Google Patents

Apparatus for production of fiber-reinforced resin strand Download PDF

Info

Publication number
CN101432107A
CN101432107A CNA2007800154991A CN200780015499A CN101432107A CN 101432107 A CN101432107 A CN 101432107A CN A2007800154991 A CNA2007800154991 A CN A2007800154991A CN 200780015499 A CN200780015499 A CN 200780015499A CN 101432107 A CN101432107 A CN 101432107A
Authority
CN
China
Prior art keywords
fiber
reinforced resin
roller
mentioned
resin strand
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CNA2007800154991A
Other languages
Chinese (zh)
Inventor
多代直行
山本淳
福谷和久
松原义明
小川胜美
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kobe Steel Ltd
Original Assignee
Kobe Steel Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kobe Steel Ltd filed Critical Kobe Steel Ltd
Publication of CN101432107A publication Critical patent/CN101432107A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/02—Making granules by dividing preformed material
    • B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/12—Making granules characterised by structure or composition
    • B29B9/14—Making granules characterised by structure or composition fibre-reinforced

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reinforced Plastic Materials (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

An apparatus for production of fiber-reinforced resin strand excelling in durability that is capable of producing a fiber-reinforced resin strand at high production speed without sliding problem. There is provided an apparatus for production of fiber-reinforced resin strand comprising spreader (8) for fibrillation of reinforcing fiber bundle (3) disposed in cross head (5) into which molten resin material (2) is continuously fed from extruder (6); comprising, disposed downstream of exit nozzle (5a) of the cross head (5), twisting rollers (11a,11b) for drawing out fiber-reinforced resin strand (9) composed of a resin impregnated fiber bundle from the exit nozzle (5a) and for strand twisting; and comprising, disposed downstream of the twisting rollers (11a,11b), twist retention rollers (12a,12b) for retaining of the twist of the fiber-reinforced resin strand (9), wherein all the twisting rollers (11a,11b) and twist retention rollers (12a,12b) without exception are made of a metal with uneven surface.

Description

The manufacturing installation of fiber-reinforced resin strand
Technical field
The present invention relates to the manufacturing installation of fiber-reinforced resin strand, in more detail, relate to the manufacturing installation of the productivity ratio fiber with excellent fortified resin twisted wire of fiber-reinforced resin strand.
Background technology
The particle that the fiber-reinforced resin strand of long size is cut into 3～15mm degree for example and obtain is used for the injection-molded articles such as shell of maker motor-car inside components (control cabinet, instrument board etc.), automobile exterior part (bumper, dashboard etc.), electronic equipment part (notebook computer, mobile phone etc.).
As the technology relevant with the conventional example that relates to fiber-reinforced resin strand and manufacturing installation thereof, for example known have a following technology.At first, to manufacturing installation, describe with reference to Figure 17 as its key diagram as the fiber-reinforced resin strand of conventional example 1.The manufacturing installation of the fiber-reinforced resin strand of this conventional example 1 is to make the device of strengthening with the high fiber-reinforced resin strand of the adaptation between fiber and the resin efficiently.That is, accepting in the crosshead 55 of molten resin material 52 without interruption from extruder 56, configuration is to strengthening the branch silk device 58 that carries out shredding with fibre bundle.At the outlet side of this crosshead 55, dispose figuration mould 59, cooler 60, twisted roller (also be referred to as to intersect roller hauling machine) 61a, 61b, pulling roll 62 in order from this outlet side.
Manufacturing installation according to such fiber-reinforced resin strand, in will strengthening the molten resin material 52 that is impregnated into fiber 51,51... in the crosshead 55 and after having flooded resin, utilize figuration mould 59 to decide section shape, and utilize cooler 60 to carry out hardening by cooling. Twisted roller 61a, 61b are rubber rollers, are driven to the opposite directions rotation.In addition, these twisted rollers 61a, 61b configuration obliquely in the opposite direction on horizontal plane.Under state with cross part (contact portion) the gripping fibers fortified resin twisted wire 53 of each twisted roller 61a, 61b, drive this each twisted roller 61a, 61b rotation, thus, fiber-reinforced resin strand 53 is the center rotation with its axle center towards direction of arrow tractive on one side on one side.
By this rotation, twisted fibres fortified resin twisted wire 53 between the branch silk device 58a in cooler 60 and downstream.Then, the fiber-reinforced resin strand 53 of twisted is retracted to the position of leaving crosshead 55 to utilize pulling roll 62 to incite somebody to action, utilizes comminutor 63 to cut off (for example with reference to patent documentation 1) at this.
But but there is the problem that is difficult to make with the speed of production of high speed (for example 40m/ minute) fiber-reinforced resin strand in the manufacturing installation of the fiber-reinforced resin strand of above-mentioned patent documentation 1.
Patent documentation 1: Japanese kokai publication hei 5-169445 communique
Summary of the invention
The purpose of this invention is to provide a kind of manufacturing installation that can make the fiber-reinforced resin strand of fiber-reinforced resin strand with high production speed.
The present invention makes in view of the above problems, technical solution of the present invention 1 is a kind of manufacturing installation of fiber-reinforced resin strand, it is characterized in that, has: divide the silk device, be arranged on from extruder and accept in the crosshead of molten resin material without interruption, carry out shredding with fibre bundle strengthening; The twisted roller that comprises at least one pair roller, be arranged on the downstream position of the outlet nozzle of above-mentioned crosshead, pull out the fiber-reinforced resin strand that constitutes by the fibre bundle that has flooded resin from above-mentioned outlet nozzle, and this fiber-reinforced resin strand carried out twisted, wherein, this fibre bundle that has flooded resin is at the fibre bundle that has been flooded above-mentioned molten resin material by the above-mentioned reinforcement after the shredding of above-mentioned branch silk device in fibre bundle; At least one pair roller of the roller centering that above-mentioned twisted roller is included forms irregular metal by the surface and constitutes.
According to the manufacturing installation of the fiber-reinforced resin strand of technical solution of the present invention 1, pull out the fiber-reinforced resin strand that constitutes by the fibre bundle that has flooded resin and at least one pair roller that this fiber-reinforced resin strand is carried out twisted from the outlet nozzle of crosshead and form irregular metal by the surface and constitute.Therefore, twisted roller concavo-convex makes the coefficient of friction between two rollers and the fiber-reinforced resin strand increase, thus the slip that can be suppressed at when pulling out fiber-reinforced resin strand to be produced.In addition, because the twisted roller is metal, so than the twisted roller of the rubber rollers system of conventional example 1, be difficult to wearing and tearing and long service life can continue to pull out fiber-reinforced resin strand for a long time.
In addition, the manufacturing installation of the fiber-reinforced resin strand of technical solution of the present invention 9 is characterised in that to have: crosshead is used for making molten resin to be impregnated into the reinforcement fibre bundle of the long size that imports continuously from upstream side; The twisted roller is arranged on the downstream of this crosshead, and twisted has flooded the reinforcement fibre bundle of resin; Cooling device is arranged between this twisted roller and the crosshead, is used for being cooled off with the fiber-reinforced resin strand that fibre bundle constitutes by the reinforcement of extracting out from above-mentioned crosshead; The warm-up mill device is arranged on the upstream side of above-mentioned crosshead, is used for the reinforcement that this crosshead of subtend imports and heats in advance with fibre bundle; And the backward pull bringing device, be arranged on the upstream side of this warm-up mill device, between this backward pull bringing device and this warm-up mill device, apply backward pull with fibre bundle to strengthening; Above-mentioned warm-up mill device has at least two warm-up mills, and these at least two warm-up mills can alternately repeatedly be reeled above-mentioned reinforcement with fibre bundle and heating respectively; Above-mentioned backward pull bringing device applies backward pull so that strengthen with above-mentioned each warm-up mill of fibre bundle contact.
The manufacturing installation of the fiber-reinforced resin strand of technical solution of the present invention 9 have the crosshead of being arranged on upstream side the warm-up mill device and be arranged on the upstream side of this warm-up mill device and the reinforcement on each warm-up mill that is wound on above-mentioned warm-up mill device applied the backward pull bringing device of backward pull with fibre bundle.Thus, strengthen and applied by the backward pull bringing device under the state of backward pull with fibre bundle, alternately repeatedly be wound at least two above-mentioned warm-up mills that for example dispose up and down of warm-up mill device, thus, closely contact on one side on one side and move with this warm-up mill that has been heated, from rather than at normal temperature but under warmed-up state in advance by the crosshead that leads continuously.
Therefore, even strengthen the speed of collecting high speed with fibre bundle, because the molten resin temperature that can suppress in the crosshead reduces, so fully being impregnated into, strengthens molten resin with in the fibre bundle, and, owing to the molten resin viscosity that can suppress in the crosshead increases, so can also be suppressed at the tension force rising of reinforcement mobile in this crosshead with fibre bundle (having flooded the reinforcement fibre bundle of resin).Therefore, compared with the past, can be with the higher speed of collecting (speed of production), for example surpass 40m/ minute the speed of collecting and make fiber-reinforced resin strand, and, can reduce to be used to make the space that is provided with of the above-mentioned warm-up mill device of collecting the speed high speed.
In addition, the manufacturing installation of the fiber-reinforced resin strand of technical solution of the present invention 12 is devices of making fiber-reinforced resin strand, it is characterized in that having: crosshead is used for making molten resin to be impregnated into the reinforcement fibre bundle of the long size that imports continuously from upstream side; The twisted machine is arranged on the downstream of this crosshead, and twisted has flooded the reinforcement fibre bundle of resin; Cooling device is arranged between above-mentioned crosshead and the above-mentioned twisted machine, is used for being cooled off with the fiber-reinforced resin strand that fibre bundle constitutes by the reinforcement of extracting out from above-mentioned crosshead; And collect machine, and be arranged on the downstream of above-mentioned cooling device, collect fiber-reinforced resin strand from above-mentioned crosshead; Above-mentioned cooling device has bosh and a plurality of spray nozzle, this bosh stores cooling water, make the fiber-reinforced resin strand collect from above-mentioned crosshead can pass through cooling water, these a plurality of spray nozzles along the moving direction devices spaced apart of fiber-reinforced resin strand be arranged in the above-mentioned bosh and in above-mentioned cooling water and spray water towards fiber-reinforced resin strand.
The manufacturing installation of the fiber-reinforced resin strand of technical solution of the present invention 12 has the cooling device between crosshead of being arranged on and the twisted roller.In storage is used to make the bosh of the cooling water that the high temperature fiber fortified resin twisted wire collected from above-mentioned crosshead passes through, along the moving direction devices spaced apart of fiber-reinforced resin strand be provided with a plurality of spray nozzles, these a plurality of spray nozzles are sprayed water towards fiber-reinforced resin strand in cooling water.Therefore, the current that utilize these spray nozzles water spray to be produced stir the cooling water in the bosh, thereby lead new cooling water flow by the fiber-reinforced resin strand in the cooling water continuously and this cooling water flow is contacted with fiber-reinforced resin strand.Thus, than the bosh that does not have spray nozzle, can carry out the heat exchange of fiber-reinforced resin strand and cooling water, the speed of raising cooling fiber-reinforced resin strand efficiently.Thus, when making fiber-reinforced resin strand with the speed of collecting that for example surpasses 40m/ minute such high speed, than the existing situation of collecting speed below 40m/ minute, even do not increase the length (along the length of fiber-reinforced resin strand moving direction) of bosh, can cool off fiber-reinforced resin strand fully yet.Therefore, as compared with the past, can be with at a high speed the speed of collecting, for example surpass 40m/ minute the speed of collecting, the resin material of making slidably that does not produce continuous fiber reinforced resin strand in the twisted machine fully is impregnated into the fiber-reinforced resin strand of strengthening with in the fibre bundle.
The manufacture method of the fiber-reinforced resin strand of technical scheme 17, comprise following operation, promptly, in crosshead, carry out shredding and impregnated with molten resin material with fibre bundle to strengthening, and the fiber-reinforced resin strand that formation is made of the fibre bundle that has flooded resin, and pull out this fiber-reinforced resin strand from the outlet nozzle of above-mentioned crosshead and carry out twisted, this manufacture method is characterised in that, adopt the twisted roller to extract fiber-reinforced resin strand out and carry out twisted from the outlet nozzle of above-mentioned crosshead, this twisted roller is included in separately surface and has at least one pair roller concavo-convex and that be made of metal.
The manufacture method of the fiber-reinforced resin strand of technical scheme 18, comprise following operation, promptly, by in crosshead, making molten resin be impregnated into pre-heated reinforcement with in the fibre bundle, and the fiber-reinforced resin strand that formation is made of the fibre bundle that has flooded resin, and extract this fiber-reinforced resin strand out from above-mentioned crosshead, after cooling, carry out twisted, it is characterized in that, by the above-mentioned reinforcement that has been applied in backward pull is contacted with pre-heated warm-up mill with fibre bundle, this reinforcement is heated in advance with fibre bundle.
The manufacture method of the fiber-reinforced resin strand of technical scheme 19, comprise following operation, promptly, by being impregnated into, strengthens molten resin with forming the fiber-reinforced resin strand that constitutes by the fibre bundle that has flooded resin in the fibre bundle, and collect this fiber-reinforced resin strand from crosshead, after cooling, carry out twisted, it is characterized in that, make the fiber-reinforced resin strand of collecting from above-mentioned crosshead by storing the bosh of cooling water, and in this bosh, spray water, thereby cool off this fiber-reinforced resin strand towards above-mentioned fiber-reinforced resin strand.
Description of drawings
Fig. 1 is the schematic construction key diagram of manufacturing installation of the fiber-reinforced resin strand of first embodiment of the invention.
Fig. 2 is the schematic isometric of twisted roller of manufacturing installation of the fiber-reinforced resin strand of first embodiment of the invention.
Fig. 3 is the schematic isometric that the twisted of manufacturing installation of the fiber-reinforced resin strand of first embodiment of the invention keeps roller.
Fig. 4 is the integrally-built structure key diagram of manufacturing installation of the fiber-reinforced resin strand of expression second embodiment of the invention.
Fig. 5 is the summary construction diagram of the reinforcement of presentation graphs 4 with fiber backward pull bringing device.
Fig. 6 is the front view of structure of the warm-up mill device of presentation graphs 4.
Fig. 7 is the side view of seeing from the VII direction of arrow of warm-up mill device shown in Figure 6 that is used for description architecture.
Fig. 8 is the rearview of warm-up mill device shown in Figure 6.
Fig. 9 is the IX-IX line cutaway view of Fig. 6.
Figure 10 is the vertical view of the structure of the cooling device of presentation graphs 4 roughly.
Figure 11 is the XI-XI line cutaway view of Figure 10.
Figure 12 is the key diagram of the twisted roller of Fig. 4.
Figure 13 is the figure of another example that is used to illustrate the backward pull bringing device of second embodiment of the invention.
Figure 14 is the figure of another example that is used to illustrate the backward pull bringing device of second embodiment of the invention.
Figure 15 is the structure key diagram of manufacturing installation of the fiber-reinforced resin strand of third embodiment of the invention.
Figure 16 cuts off the schematic diagram of the particle of the fiber-reinforced resin strand gained of twisted.
Figure 17 is the key diagram of manufacturing installation of the fiber-reinforced resin strand of conventional example.
The specific embodiment
The manufacturing installation of the fiber-reinforced resin strand of embodiment of the present invention is described below with reference to accompanying drawings.
Fig. 1 is the schematic construction key diagram of manufacturing installation of the fiber-reinforced resin strand of first embodiment of the invention, Fig. 2 is the schematic isometric of twisted roller of manufacturing installation of the fiber-reinforced resin strand of first embodiment of the invention, and Fig. 3 is the schematic isometric that the twisted of manufacturing installation of the fiber-reinforced resin strand of first embodiment of the invention keeps roller.
The manufacturing installation of the fiber-reinforced resin strand of first embodiment of the invention constitutes as shown in Figure 1.That is to say that the manufacturing installation of fiber-reinforced resin strand has a plurality of bobbins 4; Crosshead 5 makes molten resin material 2 be impregnated into the reinforcement that is made of with fiber 1 the many reinforcements of sending from these bobbins 4 and uses the fibre bundle 3; Extruder 6, it is built-in with the conveyor screw 7 that is used for supplying with continuously to this crosshead 5 molten resin material 2.Disposing the branch silk device 8 that is made of roller in above-mentioned crosshead 5, these divide silk device 8 to be used for above-mentioned reinforcement is carried out shredding with fibre bundle 3 and made molten resin material 2 be impregnated into this reinforcement fibre bundle 3.
In Fig. 1, downstream position at the right direction of the outlet nozzle 5a of above-mentioned crosshead 5, disposing twisted roller 11a described later, 11b, this twisted roller is extracted the fiber-reinforced resin strand 9 that is made of the fibre bundle that has flooded resin out and to its twisting from above-mentioned outlet nozzle 5a.In addition, at the downstream position of twisted roller 11a, 11b, the aftermentioned twisted that is disposing the twisted state that keeps above-mentioned fiber-reinforced resin strand 9 keeps roller 12a, 12b.And, keep the downstream position of roller 12a, 12b disposing comminutor 13 at twisted, this comminutor 13 is cut staple fortified resin twisted wires 9 and make it granular cutting machine.Between above-mentioned outlet nozzle 5a and twisted roller 11a, 11b, near outlet nozzle 5a, disposing cooler 10, be used to cool off fiber-reinforced resin strand 9 by hollow bulb.
Above-mentioned twisted roller 11a, 11b are metal, among Fig. 2 the axis of rotation of the twisted roller 11b of the axis of rotation of the twisted roller 11a of upside and downside be not towards with the direction of the moving direction quadrature of fiber-reinforced resin strand 9, but set for, on horizontal plane separately, depart from the set angle of above-mentioned orthogonal direction towards opposite directions.In addition, on the surface of twisted roller 11a, 11b, be formed with the concavo-convex 11c that is processed to form by annular knurl.In the present embodiment, the spacing of concavo-convex 11c is made as 0.3～3mm, preferably is made as 0.63～1.57mm, and the height of concavo-convex 11c (from the bottom of recess to the height on the summit of protuberance) is set at 0.15～1.5mm.
Shown in arrow among Fig. 2, twisted roller 11a, 11b all are driven in rotation towards the direction of extracting fiber-reinforced resin strand 9 out.And, can adjust twisted roller 11a, 11b interval each other, to make it to become the minimum interval of setting corresponding to the diameter of fiber-reinforced resin strand 9.Adjust by this, can be prevented the effect of fiber-reinforced resin strand 9 breakages.
Under the situation of the manufacturing installation of the fiber-reinforced resin strand of present embodiment, these twisted rollers 11a, 11b all are driven in rotation, and still, also can drive some rotations and another is rotated freely.According to such structure, owing to structure becomes simply, so have the economic effect of saving equipment cost.Certainly, the extraction power of fiber-reinforced resin strand 9 will die down, but owing to can obtain suitable extraction power, so also can be practical.
Under the situation of the manufacturing installation of the fiber-reinforced resin strand of present embodiment, these twisted rollers 11a, 11b all can be to direction actions approaching with respect to the roller that cooperates side and that leave, but also some rollers can be designed to can be with respect to another roller near fix another roller with leaving.According to such structure,, thereby can obtain saving the favourable economic effect of equipment cost because the mechanism approaching and departure motion of control twisted roller 11a, 11b becomes simple in structure.
Above-mentioned twisted keeps roller 12a, 12b and above-mentioned twisted roller 11a, 11b to be made of metal equally.In addition, the twisted of upside keeps the twisted of the axis of rotation of roller 12a and downside to keep the axis of rotation of roller 12b among Fig. 3, on horizontal plane parallel to each other respectively towards different directions.Specifically, above-mentioned each axis of rotation is configured to around with the special datum line of fiber-reinforced resin strand moving direction quadrature, depart from the direction of set angle respectively round about.And, on the surface of twisted maintenance roller 12a, 12b, form the concavo-convex 12c that is processed to form by annular knurl.
Shown in arrow among Fig. 3, twisted keeps roller 12a, 12b all to be driven in rotation towards the direction of extracting fiber-reinforced resin strand out.And, can adjust twisted and keep roller 12a, 12b interval each other, to make it to become the minimum interval of setting corresponding to the diameter of fiber-reinforced resin strand.Certainly, by adjusting at interval, can prevent the breakage of fiber-reinforced resin strand 9.
In addition, under the situation of the manufacturing installation of the fiber-reinforced resin strand of present embodiment, these twisteds keep roller 12a, 12b all to be driven in rotation, and still, also can be designed to, and drive some rotations and another is rotated freely.According to such structure, because twisted keeps the structure of the drive unit of roller 12a, 12b to become simply, so have to saving the favourable economic effect of equipment cost.
Under the situation of the manufacturing installation of the fiber-reinforced resin strand of present embodiment, these twisteds keep roller 12a, 12b all can with respect to the roller that cooperates side near and leave, but, also can be designed to some rollers with respect to approaching another roller of fixing with leaving of another roller.According to such structure, the mechanism approaching and departure motion of control twisted roller 12a, 12b becomes simple in structure, thereby can obtain being beneficial to the economic effect of saving equipment cost.
As make twisted roller 11a, 11b, twisted keep roller 12a, 12b to opposite side carry out near and the roller actuating mechanism of departure motion, can adopt for example spring, cylinder, hydraulic cylinder etc.For example, if the roller actuating mechanism is a spring, then can adjust the pressing force that each roller applies fiber-reinforced resin strand 9 by the deflection of adjusting spring; If the roller actuating mechanism is a cylinder, then can adjust the pressing force that each roller applies fiber-reinforced resin strand 9 by adjusting air pressure; If the roller actuating mechanism is a hydraulic cylinder, then can adjust the pressing force that each roller applies fiber-reinforced resin strand 9 by adjusting hydraulic pressure.
In addition, for example can utilize mechanical mechanism described later to adjust each twisted roller 11a, 11b interval and twisted each other and keep roller 12a, 12b interval each other.Each roller minimum interval is each other set corresponding to the diameter of fiber-reinforced resin strand 9.This minimum interval is set in 70～90% the scope of diameter of fortified resin twisted wire 9 usually, and the degree of minimum interval is decided by the power of the mechanical strength of fiber-reinforced resin strand 9.Specifically, when constituting fiber-reinforced resin strand 9 by the high strength material, the minimum interval is set at the value of close 70% in above-mentioned 79～90% scopes, and when constituting fiber-reinforced resin strand 9 by low intensive material, the minimum interval is set at the value near 90%.
Be used to adjust these twisted rollers 11a, 11b interval or twisted each other and keep the roller minimum interval guiding mechanism 20 at roller 12a, 12b interval each other, be structure shown in Figure 2.
That is to say that roller minimum interval guiding mechanism 20 has: be used to utilize roller 11a, 11b fiber-reinforced resin strand 9 to be applied the hydraulic cylinder 21 of pressing force; Elevator platform 22, it utilizes bar flexible of this hydraulic cylinder 21 and lifting, and, have and rotate the pair of rolls Support bracket 22a of the diaxon end of backing roll freely; Dogbolt 23, it is threaded over to carve and is located in the not shown negative thread at these elevator platform 22 two ends, and is being threadedly engaged with locking nut 24.That is to say,, adjust dogbolt 23, change the butt position of the pedestal of the bottom of this dogbolt 23 and supporting elevation frame 22 thus from elevator platform 22 overhang outstanding towards the below corresponding to the screw-in amount of dogbolt 23.The position of moving the elevator platform 22 that is limited by pedestal downwards is defined as roller minimum interval each other.Moving of elevator platform 22 can be undertaken by the stroke of adjusting above-mentioned hydraulic cylinder 21.
Effect to the manufacturing installation of the fiber-reinforced resin strand of first embodiment describes below.That is to say, utilize to divide 8 pairs of silk devices to import to and carry out shredding with the reinforcement that fiber 1 constitutes with fibre bundle 3 by many reinforcements in the crosshead 5 from bobbin 4, and, make to be impregnated into this reinforcement from extruder 6 continuous molten resin supplied materials 2 and to use the fibre bundle 3.The resin-impregnated fiber bundle 3 of having flooded molten resin material 2 utilizes twisted roller 11a, 11b to carry out twisted on one side, as fiber-reinforced resin strand 9 by outlet nozzle 5a from crosshead 5 extracted on one side.And then, utilize twisted to keep roller 12a, 12b that the fiber-reinforced resin strand 9 of twisted is applied extraction power, and apply and above-mentioned twisted roller 11a, the equidirectional twisted power of 11b.Then, utilizing comminutor 13 that fiber-reinforced resin strand 9 is both cut into measured length forms and is particle.
The manufacturing installation of the fiber-reinforced resin strand of first embodiment utilizes above-mentioned operation and makes particle from fiber-reinforced resin strand 9.At this, twisted roller 11a, 11b and twisted keep roller 12a, 12b all to be made of metal, and, utilize annular knurl processing to form concavo-convex in its surface.
Therefore, manufacturing installation according to the fiber-reinforced resin strand of first embodiment, owing to utilizing annular knurl processing to be formed on lip-deep concavo-convex, increased the coefficient of friction between these twisted rollers 11a, 11b, twisted maintenance roller 12a, 12b and the fiber-reinforced resin strand 9, slided thereby can be suppressed to produce when extracting fiber-reinforced resin strand 9 out.In addition, because twisted roller 11a, 11b are made of metal, therefore, twisted roller than the rubber rollers system of conventional example, be difficult to wear and tear, long service life, so, can use for more time than the manufacturing installation of the fiber-reinforced resin strand of conventional example, and, can speed of production at full speed continue to extract out fiber-reinforced resin strand 9.
(embodiment)
Utilize following examples to confirm that twisted roller 11a, 11b and twisted keep the case hardness of roller 12a, 12b to be preferably more than the Hs60.That is to say,, when adopting rubber rollers, will produce groove on the roller surface in one day, thereby can't extract fiber-reinforced resin strand out again and become the state of having to change extracting out under the situation of fiber-reinforced resin strand with for example 40m/ minute speed of production.Given this, twisted roller 11a, 11b and twisted keep roller 12a, 12b to be made by metal, more particularly by the modified material of S45C (hardness: Hs40) make, and utilize annular knurl processing to form the concavo-convex of the about 1mm of diclinic line spacing on the roller surface.At this, the diclinic line refers to following annular knurl line: the mode with each limit of clipping rhombus forms a plurality of protuberances with rectangular pyramid shape of rhombus bottom surface.In addition, the about 1mm of diclinic line spacing is meant, the distance in the crest line of above-mentioned rhombus between a pair of crest line parallel to each other is 1mm.And in the present embodiment, the depth dimensions from the part of the crest line (recess) that constitutes above-mentioned rhombus to the summit of above-mentioned rectangular pyramid is set to about 0.4mm.
The concavo-convex processing on roller surface might not leave no choice but utilize annular knurl processing, also can adopt other processing methods, and for example discharge processing, line cutting processing wait and process.
For (hardness: Hs40) twisted roller 11a, 11b of Gou Chenging and twisted keep roller 12a, 12b, can extract fiber-reinforced resin strand out in about 140 hours by the modified material of S45C.
But, after this, can produce slip, thereby can't extract fiber-reinforced resin strand out.Therefore, utilize the modified material of SKD11 to make twisted roller 11a, 11b and twisted maintenance roller 12a, 12b, and after annular knurl processing, utilize vacuum hardening and make case hardness reach Hs60, like this, even through about 7000 hours, slip can be do not produced yet, still fiber-reinforced resin strand can be extracted out.And, do not find that twisted roller 11a, 11b and twisted keep the concavo-convex outer peripheral face to fiber-reinforced resin strand of roller 12a, 12b to cause problem on the quality such as damage.
This shows, because the mar proof on roller surface significantly improves and can make wear extent become considerably less, even so, also can make service life elongated in order to extract fiber-reinforced resin strand out and to increase the pressing force that fiber-reinforced resin strand is applied with the speed of production of more speed.In addition, if extract fiber-reinforced resin strand out,, can not produce any problem even then passed through 3500 hours with 70m/ minute speed of production yet.
Twisted roller 11a, 11b and twisted keep the preferred diameter of roller 12a, 12b, confirm utilizing the concavo-convex and hardness that is formed with diclinic line spacing 1mm on the surface to extract out with 40m/ minute speed of production for the roller of Hs60 under the following condition of fiber-reinforced resin strand.
At first, be under the situation of 40mm at the diameter of roller, even speed of production is 40m/ minute, also be easy to generate slip, thereby can't extract fiber-reinforced resin strand out with stable speed of production.And be under the situation of 50mm at the diameter of roller, can not produce slip even extract fiber-reinforced resin strand out with 40m/ minute speed of production yet, can extract fiber-reinforced resin strand out with stable speed of production, thus can confirm to be better than adopting rubber rollers significantly time the 5m/ minute.
And be under the situation of 60mm, 70mm at the diameter of roller, can not produce any slip, even can extract fiber-reinforced resin strand out with stable status with 40m/ minute speed of production yet yet.In the present embodiment, twisted roller 11a, 11b up and down and twisted maintenance roller 12a, 12b all are driven.
In above embodiment, keeping the material of roller 12a, 12b with up and down twisted roller 11a, 11b and twisted is that the situation of SKD11 is that example is illustrated.But, so long as can utilize the processing of raising hardness such as heat treatment to guarantee that the material of the hardness that Hs60 is above gets final product, and is SKD11 so be not particularly limited.In addition, measure the position as hardness, mensuration be hardness basically with identical roll end surface, roller surface through annular knurl processing.In addition, the manufacturing installation of the fiber-reinforced resin strand of above-mentioned embodiment is an object lesson of the present invention only, the mode of the manufacturing installation of fiber-reinforced resin strand is not limited to the mode in the above-mentioned embodiment, can carry out design alteration freely etc. in the scope that does not break away from technological thought of the present invention.
As the technology that relates to the conventional example relevant with the manufacturing installation of the fiber-reinforced resin strand of above-mentioned first embodiment, known have a structure for example described later.At first, to the manufacturing installation of the fiber-reinforced resin strand of conventional example 1, describe with reference to Figure 17 as its key diagram.The manufacturing installation of the fiber-reinforced resin strand of this conventional example 1 is made the high fiber-reinforced resin strand of strengthening with fiber and resin of adaptation efficiently.That is to say,, disposing the branch silk device 58 that carries out shredding with fibre bundle to strengthening being supplied with in the crosshead 55 of molten resin material 52 continuously from extruder 56.At the outlet side of this crosshead 55, disposing figuration mould 59, cooler 60, twisted roller (also be referred to as to intersect roller hauling machine) 61a, 61b, pulling roll 62 in order from this outlet side.
Manufacturing installation according to such fiber-reinforced resin strand, in will strengthening the molten resin material 52 that is impregnated into fiber 51,51... in the crosshead 55 and behind the impregnating resin, utilize figuration mould 59 to decide section shape, and utilize cooler 60 to carry out hardening by cooling. Twisted roller 61a, 61b are rubber rollers, are driven and rotation round about.In addition, these twisted rollers 61a, 61b be configuration obliquely in the opposite direction in horizontal plane, utilize the cross part of these twisted rollers 61a, 61b to come gripping fibers fortified resin twisted wire 53 and towards direction of arrow tractive, thus, fiber-reinforced resin strand 53 is the center rotation with the axle center.
By this rotation, between the branch silk device 58a in the cooler 60 of fiber-reinforced resin strand 53 and downstream, twist.Then, utilize the locational comminutor 63 that is arranged on the pulling roll 62 of leaving crosshead 55, cut off the fiber-reinforced resin strand 53 (for example with reference to Japanese kokai publication hei 5-169445 communique) of having been twisted.
To carry out summary description to the manufacturing installation of the long-fiber-reinforced thermoplastic resin strand (hereinafter referred to as fiber-reinforced resin strand) of conventional example 2 below.That is to say, the fiber-reinforced resin strand manufacturing installation of this conventional example 2 when making fiber-reinforced resin strand, can make to long-time continuous.In more detail, this manufacturing installation is following device: will strengthen with fibre bundle importing in the thermoplastic resin of the fusion in the thermoplastic resin bath container (crosshead), make thermoplastic resin impregnated in this reinforcement usefulness fibre bundle, the fibre bundle that will flood resin is then extracted out from above-mentioned thermoplastic resin bath outlet of container nozzle, makes the long-fiber-reinforced thermoplastic resin strand thus; Wherein, bathe in the container at above-mentioned thermoplastic resin, dispose the roller that contacts with fibre bundle with this reinforcement with reinforcement across with the mobile starting of fibre bundle, this roller is made of axle and pipe, and this pipe is supported freely around above-mentioned axle rotation.And, between the twisted roller and comminutor that fiber-reinforced resin strand are carried out twisted, be provided for keeping mechanism's (for example with reference to Japanese kokai publication hei 2003-175512 communique) of the twisted that the twisted roller applies fiber-reinforced resin strand.
Although the twisted roller of the manufacturing installation of the fiber-reinforced resin strand of above-mentioned conventional example 1 has simple structure, while can carry out twisted tractive fiber-reinforced resin strand, so think that this twisted roller is good.But, owing to the twisted roller of two drums tilts to utilize the point that these rollers join (be not line but point) to carry out tractive towards different directions respectively, so the problem that exists fiber-reinforced resin strand to slide easily.In order to prevent such slip, in this conventional example 1, as mentioned above, adopt the roller of rubber system to be used as the twisted roller.
Therefore, according to the manufacturing installation of the fiber-reinforced resin strand of above-mentioned conventional example 1, the wearing and tearing of twisted roller early can not apply stronger pressing force to fiber-reinforced resin strand, so can't come continuous producd fibers fortified resin twisted wire with speed of production at a high speed.
If in speed of production at a high speed, do not produce and slide and apply stronger pressing force, for example produce fiber-reinforced resin strand with 40m/ minute speed of production, then wearing and tearing are done sth. in advance, are slided and increase, need just change the twisted roller at about 20 hours, thus the problem that exists the twisted roller just can't use in early days.
In the manufacturing installation of the fiber-reinforced resin strand of above-mentioned conventional example 2, between twisted roller and comminutor, be provided for keeping the mechanism of the twisted that the twisted roller applies fiber-reinforced resin strand.But this mechanism is across the relative roller group of configuration of fiber-reinforced resin strand, adopts stagger the each other structure of angle of roll shaft.Therefore, with the twisted roller of above-mentioned conventional example 1 similarly because what adopt is fiber-reinforced resin strand point contacting structure, so there is the fiber-reinforced resin strand problem of slip easily.
Therefore, the purpose of first embodiment is to provide a kind of and can produce the manufacturing installation of making fiber-reinforced resin strand fiber-reinforced resin strand, excellent in te pins of durability slidably with speed of production at a high speed.
Therefore, above-mentioned first embodiment is a kind of manufacturing installation of fiber-reinforced resin strand, it is characterized in that, has: divide the silk device, be arranged on from extruder and accept in the crosshead of molten resin material without interruption, carry out shredding to strengthening with fibre bundle; The twisted roller that comprises at least one pair roller, be arranged on the downstream position of the outlet nozzle of above-mentioned crosshead, extract the fiber-reinforced resin strand that constitutes by the fibre bundle that has flooded resin out from above-mentioned outlet nozzle, and this fiber-reinforced resin strand carried out twisted, wherein, this fibre bundle that has flooded resin is at the fibre bundle that has been flooded above-mentioned molten resin material by the above-mentioned reinforcement after the shredding of above-mentioned branch silk device in fibre bundle; At least one pair roller of the roller centering that above-mentioned twisted roller is included forms irregular metal by the surface and constitutes.
According to the manufacturing installation of the fiber-reinforced resin strand of first embodiment, extract the fiber-reinforced resin strand that constitutes by the fibre bundle that has flooded resin and at least one pair roller that this fiber-reinforced resin strand is carried out twisted out from the outlet nozzle of crosshead and form irregular metal by the surface and constitute.Therefore, the concavo-convex of twisted roller makes the coefficient of friction between two rollers and the fiber-reinforced resin strand increase, and slides thereby can be suppressed to produce when extracting fiber-reinforced resin strand out.In addition, because the twisted roller is metal, so than the twisted roller of the rubber rollers system of conventional example 1, be difficult to wearing and tearing and long service life can continue the extraction fiber-reinforced resin strand for a long time.
In the manufacturing installation of the fiber-reinforced resin strand of first embodiment, preferably, downstream position at above-mentioned twisted roller, be provided for keeping the twisted that is made of pair of rolls of the twisted state of above-mentioned fiber-reinforced resin strand to keep roller, this twisted keeps two rollers of roller to form irregular metal by the surface making.
According to this structure, be used to keep the twisted that constitutes by pair of rolls of the twisted state of fiber-reinforced resin strand to keep roller to form irregular metal and make by the surface.Therefore, twisted keeps the concavo-convex of roller to make the coefficient of friction between two rollers and the fiber-reinforced resin strand increase, thus the slip that is produced can be suppressed at the twisted state that keeps fiber-reinforced resin strand the time.In addition, because the twisted roller is metal, long service life can continue to extract out fiber-reinforced resin strand for a long time so be difficult to wearing and tearing.
In the manufacturing installation of the fiber-reinforced resin strand of first embodiment, preferably above-mentioned metallic surface hardness is set at more than the hardness suitable with Hs60.
According to this structure, keep the metallic surface hardness of roller to be set at more than the hardness suitable on twisted roller and twisted with Hs60.Therefore, it is high rigidity and excellent in abrasion resistance, long service life that twisted roller and twisted keep the periphery of roller, so improved the running rate of the manufacturing installation of fiber-reinforced resin strand, can improve the productivity ratio of fiber-reinforced resin strand.
In the manufacturing installation of the fiber-reinforced resin strand of first embodiment, preferably the external diameter with above-mentioned roller all is set at more than the 50mm.
As mentioned above, it is to contact in theory that fiber-reinforced resin strand and twisted roller, fiber-reinforced resin strand and twisted keep roller, but in fact, and fiber-reinforced resin strand is owing to slightly be out of shape and become face and contact.According to said structure, owing to keep the external diameter of roller all to be set at more than the 50mm on twisted roller and twisted, so, external diameter corresponding to these twisted rollers and twisted maintenance roller, the contact area of the contact area of two rollers and then two rollers and fiber-reinforced resin strand increases, thereby can improve non-skid property significantly.
In the manufacturing installation of the fiber-reinforced resin strand of first embodiment, preferably, at least one roller of the particular roll centering of above-mentioned twisted roller and twisted keep in two rollers of roller at least one roller can with respect to corresponding another roller separately carry out near and the action left, and, can push with certain or variable pressing force with respect to fiber-reinforced resin strand.
According to this structure, at least one roller of the particular roll centering of twisted roller and twisted keep in two rollers of roller at least one roller can with respect to corresponding another roller separately carry out near and the action left, and, can push with certain or variable pressing force with respect to fiber-reinforced resin strand.Therefore, keep the pressing force of roller owing to strengthening twisted roller and twisted, so can prevent sliding stop to fiber-reinforced resin strand.In addition, can keep roller that the pressing force of fiber-reinforced resin strand is adjusted into appropriate pressing force on twisted roller and twisted corresponding to the hardness of fiber-reinforced resin strand and the speed of production of fiber-reinforced resin strand.
In the manufacturing installation of the fiber-reinforced resin strand of first embodiment, preferably, has roller guiding mechanism at interval, this roller guiding mechanism at interval can be adjusted two roller intervals each other that interval between each right roller of the formation roller of above-mentioned twisted roller or twisted keep roller, so that described interval becomes the minimum interval of setting corresponding to the diameter of above-mentioned fiber-reinforced resin strand.
Manufacturing installation according to the fiber-reinforced resin strand of first embodiment, can adjust two roller intervals each other that interval between each right roller of the formation roller of twisted roller or twisted keep roller, so that described interval becomes the minimum interval of setting corresponding to the diameter of fiber-reinforced resin strand.Therefore, can push fiber-reinforced resin strand with suitable flattening amount according to the diameter of fiber-reinforced resin strand, so can be prevented the effect of fiber-reinforced resin strand breakage.
Below with reference to accompanying drawings second embodiment of the present invention is described.Fig. 4 is the integrally-built structure key diagram of manufacturing installation of the fiber-reinforced resin strand of expression second embodiment of the invention.
As shown in Figure 4, (be that 3 bobbin 25A～25C) send and strengthen with fiber (rove) 1 in the present embodiment, and utilize the entrance side guiding piece 201 of warm-up mill device 200 that it is compiled with fibre bundle 3 as strengthening from a plurality of bobbins respectively.In order to heat this reinforcement in advance, this reinforcement is guided to the warm-up mill device 200 with a pair of warm-up mill 220,230 that disposes up and down with fibre bundle 3 with fibre bundle 3.On bobbin 25A～25C, have respectively and strengthen with fiber backward pull bringing device 100A～100C, like this, apply backward pull to strengthening with fibre bundle 3 on one side, on one side make it alternately that multi-turn is wound on a pair of warm-up mill 220,230, thereby be touched heating by closely contacting with warmed-up warm-up mill 220,230.
In downstream, the extruder 6 and the crosshead (molten resin bath container) 5 that are built-in with conveyor screw 7 are being set near this warm-up mill device 200.Supply with molten resins (thermoplastic resin of fusion) 2 from this extruder 6 continuously to crosshead 5, and the reinforcement that has imported by these warm-up mill device 200 preheatings to crosshead 5 from warm-up mill device 200 is with fibre bundle 3.In the inboard of this crosshead 5, be provided with the reinforcement that is used for making molten resin 2 to be impregnated into supplying with continuously with a plurality of branch silk devices of fibre bundle 3 (shredding and flood use roller) 8.In the outlet of crosshead 5 figuration mould 26 is installed, be used for to by collect from this crosshead 5 and carried out twisting dipping the fiber-reinforced resin strand 9 of the high temperature that constitutes with fibre bundle of the reinforcement of resin carry out figuration.
Downstream in the crosshead 5 that this figuration mould 26 has been installed is provided with cooling device 27, will cool off in cooling water from the fiber-reinforced resin strand 9 of the high temperature of this crosshead 5.In addition, twisted roller 31a, 31b are set in the downstream near this cooling device 27.Utilize the manufacturing installation manufacturing of present embodiment and be directed to the fiber-reinforced resin strand 9 in twisted roller 31a, 31b downstream, the comminutor (twisted wire cutting machine) 13 that is positioned at twisted roller 31a, 31b downstream cuts off and becomes particle.
Fig. 5 is the summary construction diagram of the reinforcement of presentation graphs 4 with fiber backward pull bringing device.
As shown in Figure 5, on the end of reinforcement of reeling, fixing swing roller body 25b with the rotating shaft of the bobbin 25A of fiber 1.On this swing roller body 25b outer peripheral face, striding half cycle ground hangs around banded boots (シ ユ-) parts 101, on the one distolateral distolateral hook that is connected draft helical spring 102 of these band shape boots parts 101, another distolateral hook of this draft helical spring 102 is fixed.The 103rd, backward pull is regulated and use slide block, utilizes motor 103a to make lead screw shaft (not shown) rotation and makes the 103b of lifting nut portion mobile along the vertical direction.The distolateral backward pull that is connected in of another of banded boots parts 101 is regulated with on the above-mentioned lifting nut 103b of portion of slide block 103.
Under the effect of the recuperability of draft helical spring 102, banded boots parts 101 are pushed swing roller body 25b, thus, apply backward pull by the effect of collecting of twisted roller 31a, 31b and to the reinforcement of extracting out from bobbin 25A with fiber 1.Increase and decrease the pressing force that banded boots parts 101 are applied by the 103b of lifting nut portion is moved along the vertical direction, thus, can regulate being applied to the backward pull of strengthening with on the fiber 1.
Utilizing above-mentioned banded boots parts 101, draft helical spring 102 and backward pull to regulate with slide block 103 constitutes apply the reinforcement fiber backward pull bringing device 100A of backward pull with fiber 1 from the reinforcement of bobbin 25A.In addition, the reinforcement from bobbin 25B is applied backward pull with fiber 1 reinforcement is with fiber backward pull bringing device 100B and the reinforcement from bobbin 25C is applied the reinforcement of backward pull with fiber 1 identical with the structure of strengthening usefulness fiber backward pull bringing device 100A with the structure of fiber backward pull bringing device 100C.Utilize these to strengthen to constitute and apply the backward pull bringing device of backward pull with fibre bundle 3 to being wound on reinforcement on the warm-up mill 220,230 with fiber backward pull bringing device 100A～100C.
Fig. 6 is the front view of structure of the warm-up mill device of presentation graphs 4, and Fig. 7 is the side-looking partial sectional view of seeing from the VII direction of arrow of warm-up mill device shown in Figure 6, and Fig. 8 is the rearview of warm-up mill device shown in Figure 6, and Fig. 9 is the IX-IX line cutaway view of Fig. 6.
In Fig. 6～Fig. 9, the 202nd, the frames of hollow quadrangular shape.This frames 202 is fixed on the posture of standing up on the upper surface of top base plate 203 of base body, and this base body fixes on the ground.On this frames 202, a pair of warm-up mill 220,230 rotatably is installed with the state that separates set interval up and down.
At first, warm-up mill 220,230 is described.The warm-up mill 220 of upside is made of warm-up mill body and warm-up mill supporter.The warm-up mill body has the annulus of aluminium alloy system, and this annulus has integratedly with the peripheral part 221 of the ring-type formation of set width and the tabular flank 222 of annular that is arranged on the inboard of this peripheral part 221; Be combined in the lug boss 223 on the flank 222 of this annulus by bolted; And be installed in the tabular heater (ring heater) 224 of annular that constitutes by heating wire on the single side face of above-mentioned flank 222.On above-mentioned peripheral part 221, be formed with along roller rotating shaft direction a plurality of circumferential grooves (being 10 circumferential grooves in the present embodiment) 225 side by side with the groove of fibre bundle 3 as the guiding reinforcement, thus, constitute the warm-up mill of trough of belt.In addition, the warm-up mill supporter has and adopts bond to be combined in warm-up mill rotating shaft 226 on the above-mentioned lug boss 223 of warm-up mill body; And cartridge housing 227 cylindraceous, the bearing that cartridge housing 227 utilization is installed in both ends rotates and supports freely and hold this warm-up mill rotating shaft 226 with the rotation of warm-up mill body one.The cartridge housing 227 of the warm-up mill 220 of this upside is fixed on the frames 202 by installing component.
The warm-up mill 230 of downside is identical with the structure of the warm-up mill 220 of above-mentioned upside, is made of warm-up mill body and warm-up mill supporter.The warm-up mill body has the annulus of aluminium alloy system, and this annulus has peripheral part 231 and the tabular flank 232 of annular integratedly; Be combined in the lug boss 233 on the flank 232 of this annulus by bolted; And be installed in the tabular heater 234 of annular that constitutes by heating wire on the single side face of above-mentioned flank 232.On above-mentioned peripheral part 231, be formed with along roller rotating shaft direction a plurality of circumferential grooves (being 9 circumferential grooves in the present embodiment) 235 side by side with the groove of fibre bundle 3 as the guiding reinforcement, thus, constitute the warm-up mill of trough of belt.In addition, the warm-up mill supporter has and adopts bond to be combined in warm-up mill rotating shaft 236 on the above-mentioned lug boss 233 of warm-up mill body; And cartridge housing 237 cylindraceous, the bearing that cartridge housing 237 utilization is installed in both ends rotates and supports freely and hold this warm-up mill rotating shaft 236 with the rotation of warm-up mill body one.The cartridge housing 237 of the warm-up mill 230 of this downside is fixed on the frames 202 by installing component.In addition, although omitted diagram, also have under strengthening and surround the warm-up mill of warm-up mill 220,230 with covering with the lead-in portion of fibre bundle 3 and leading-out portion branch opened state.
The reinforcement that guiding comes under the state that has been applied in backward pull fibre bundle 3, around descend behind circumferential groove 225 quadrants of Fig. 7 of upside warm-up mill 220 left end → around rise behind circumferential groove 235 half cycles of Fig. 7 of downside warm-up mill 230 left end → around descend → behind next circumferential groove 235 half cycle of Fig. 7 of downside warm-up mill 230 left end, rising behind next circumferential groove 225 half cycle of Fig. 7 of upside warm-up mill 220 left end, so so alternately be wound on warm-up mill 220, on 230, behind circumferential groove 225 quadrants of Fig. 7 of upside warm-up mill 220 right-hand member, be directed to crosshead 5.In Fig. 6, omitted to compile and strengthened with fiber 1 and as strengthening and the entrance side guiding piece 201 (with reference to Fig. 4) of the warm-up mill 220 of guiding upside with fibre bundle 3 from each of each bobbin 25A～25C.
The electric power of following subtend heater 224,234 is supplied with and the heter temperature adjusting describes.By with the slip ring 206,206 that is being connected with the distribution of power supply from not shown first heating, will first heat the above-mentioned heater 224 that supply to the upside warm-up mill 220 of rotation with the electric power of power supply from this.Slip ring 206,206 is supported on slip ring with on the carriage 205, and this slip ring is fixed on the above-mentioned frames 202 by installing component with carriage 205.Similarly, by slip ring 207,207, will supply to the above-mentioned heater 234 of the warm-up mill 230 of rotation with the electric power of power supply from the second not shown heating.Slip ring 207,207 is supported on above-mentioned slip ring with on the carriage 205.
In addition, the 204th, be positioned at warm-up mill 220,230 back sides and be fixed on installing plate on the above-mentioned frames 202.The 208th, be installed on the installing plate 204 towards flank 222 ground of upside warm-up mill 220, be used to measure the contactless radiation thermometer of the temperature of warm-up mill 220, equally, the 209th, be installed on the installing plate 204 towards flank 232 ground of warm-up mill 230, be used to measure the contactless radiation thermometer (with reference to Fig. 8, Fig. 9) of the temperature of downside warm-up mill 230.
Thermoregulator (control panel) 210 is according to the temperature measuring value information from radiation thermometer 208, control supplies to the electric power of above-mentioned heater 224 so that the temperature of upside warm-up mill 220 becomes the goal-setting value from above-mentioned first heating with power supply, and, according to the temperature measuring value information from radiation thermometer 209, control supplies to the electric power of above-mentioned heater 234 so that the temperature of downside warm-up mill 230 becomes the goal-setting value from above-mentioned second heating with power supply.
Below, describe with the powder brake of the tension force of fibre bundle 3 being used to adjust the reinforcement of drawing from this warm-up mill device.As Fig. 7, shown in Figure 8, between being connected in the sprocket wheel 211 on the warm-up mill rotating shaft 226 of upside warm-up mill 220 and being connected sprocket wheel 212 on the rotating shaft of the electromagnetic type powder brake 214 that is fixed on the frames 202, hang chain 213.By the brake force of increase and decrease powder brake 214, can be appropriate value with the tension adjustment of fibre bundle 3 with the reinforcement of guiding crosshead 5.The 215th, the powder brake control panel.
Below above-mentioned cooling device 27 is described.Figure 10 is the vertical view of the structure of the cooling device of presentation graphs 4 roughly, and Figure 11 is the XI-XI line cutaway view of Figure 10.
Cooling device 27 has: bosh 28, be the on limits case shape with cover of upside, and store cooling water, make from the fiber-reinforced resin strand 9 that crosshead 5 is collected and along continuous straight runs moves and pass through the cooling water; A plurality of spray nozzles 29, separating set compartment of terrain along the moving direction of fiber-reinforced resin strand 9 from the upstream side to the downstream is configured in the bosh 28, and, be configured to zigzag across the mobile route of fiber-reinforced resin strand 9, in cooling water, spray water towards fiber-reinforced resin strand 9; And the pressure (hydraulic) water supply pipe 30 that is used for supplying with pressure (hydraulic) water to these spray nozzles 29.
In addition, on bosh end panel 28a, the 28a of bosh 28, the U font otch (not shown) that the reinforcement of having flooded resin can be passed through with fibre bundle is set.Cooling water in the bosh 28 overflows from the U font otch opening of bosh end panel 28a, 28a, still, by supplying with cooling water from pressure (hydraulic) water supply pipe 30 via spray nozzle 29 in bosh 28, water level is kept certain.Except spray nozzle, also can supply with cooling water, and water level be kept certain with this from the supply port of in bosh, supplying with cooling water of other setting.At the downside of bosh end panel 28a, 28a, be provided with that the cooling water that is used to make from bosh 28 returns and the not shown pump, drain vessel and the drainage piping that circulate.
Like this, between crosshead 5 and twisted roller 31a, 31b, as cooling device 27, the time high temperature fiber fortified resin twisted wire 9 along continuous straight runs collected from crosshead 5 boshes 28 that cooling water, move in, along the moving direction devices spaced apart of fiber-reinforced resin strand 9 a plurality of spray nozzles 29 are set, in cooling water towards fiber-reinforced resin strand 9 water sprays.
Therefore, the current that utilize these spray nozzle 29 water sprays to be produced stir the cooling water in the bosh, thereby the fiber-reinforced resin strand 9 that new cooling water flow is led continuously from the entrance side to the outlet side and to move in cooling water, and cooling water flow is contacted with fiber-reinforced resin strand 9, thus, than the bosh that does not have spray nozzle 29, can carry out fiber-reinforced resin strand 9 and the heat exchange of cooling water, the speed of raising cooling fiber-reinforced resin strand 9 more efficiently.
Below above-mentioned twisted roller 31a, 31b are described.Figure 12 is the key diagram of the twisted roller of Fig. 4.
A pair of twisted roller 31a, 31b rotation separately remain on the parallel plane (horizontal plane), and, under the state that rotation is intersected, with mode arranged opposite twisted roller 31a, 31b across the fiber-reinforced resin strand 9 that comes self-cooling set 27.That is to say, among Figure 12 the rotation of the twisted roller 31b of the rotation of the twisted roller 31a of upside and downside be not towards with the direction of collecting direction (moving direction) quadrature of fiber-reinforced resin strand 9, but set for, overlook when observing, depart from set angle towards opposite directions with equal angular with respect to collecting direction.In addition, metal upside twisted roller 31a is formed with the concavo-convex 31Aa that is processed to form by annular knurl on whole roller surface (roller outer peripheral face).Equally, metal downside twisted roller 31b is formed with the concavo-convex 31Ba that is processed to form by annular knurl on whole roller surface (roller outer peripheral face).
In addition, in the present embodiment, both all are driven in rotation a pair of twisted roller 31a, 31b.So, this a pair of twisted roller 31a, 31b have the function that the reinforcement of having flooded resin is twisted with fibre bundle, and, have the function of collecting fiber-reinforced resin strand 9 from cooling device 27, thereby can the machine of collecting be set in addition in the downstream of twisted roller 31a, 31b.From twisted roller 31a, 31b to distance being set and collecting under the situations such as twisted wire of easy fracture at a high speed the twisted wire cutting machine, a pair of identical with twisted roller 31a, 31b of structure is set in the downstream of twisted roller 31a, 31b collects roller (for example roller 12a, the 12b of Fig. 1) conduct and collect machine.
Like this, a pair of twisted roller 31a, 31b are made of metal, and have formed concavo-convex 31Aa, 31Ba on its roller surface.Therefore, because the coefficient of friction between metal twisted roller 31a, 31b and the fiber-reinforced resin strand 9 increases, thereby complement each other with the cooling effect of 27 pairs of fiber-reinforced resin strands 9 of cooling device, can not produce under the situation of slip effectively to fiber-reinforced resin strand 9 twisting at fiber-reinforced resin strand 9.In addition, owing to be metal twisted roller, therefore, the twisted roller than rubber system is difficult to wear and tear, long service life, so, can make fiber-reinforced resin strand 9 not take place to collect for a long time slidably.
The situation that the manufacturing installation of the continuous fiber reinforced resin strand that utilizes such formation is made fiber-reinforced resin strand describes below.For the reinforcement fibre bundle 3 that constitutes with fiber 1 by the reinforcement of sending from bobbin 25A～25C, utilize on one side to strengthen and it is applied backward pull with fiber backward pull bringing device 100A～100C, one side is with a pair of heating roller 220,230 of its guiding heating with the configuration up and down of roller arrangement 200, and by with its alternately repeatedly (being 9 times in the present embodiment) be wound on the heating with contacting heating on the roller 220,230, make it to become soaking condition thus, and under this state, it is directed in the crosshead 5.Strengthen with fibre bundle 3 by being full of each minute in the crosshead 5 of the high-temperature fusion resin 2 of extruder 6 supplies in silk device 8 the process, flooded by resin and become the reinforcement fibre bundle that has flooded resin.In addition, under the twisted action of twisted roller 31a, 31b, this reinforcement of having flooded resin begins and the twisted that extends as starting point with the branch silk device 8 of fibre bundle with the downstream in the crosshead 5.Like this, utilize crosshead 5 to make and be impregnated into reinforcement with the fibre bundle 3 from extruder 6 molten resin supplied 2, and, utilize the twisted action of twisted roller 31a, 31b and the reinforcement of having flooded resin is twisted with fibre bundle, thereby can be have continuously collected by the dipping of twisting the continuous fiber reinforced resin strand 9 that the reinforcement of resin constitutes with fibre bundle from crosshead 5.
The fiber-reinforced resin strand 9 of the high temperature of collecting continuously through inborn nature mould 26 from crosshead 5, be directed to cooling device 27, move in the cooling water in bosh 28, and, by being subjected to from across the effect of the current of the spray nozzle 29 of the mode indentation of its mobile route configuration and hardening by cooling is directed to twisted roller 31a, 31b then.Utilize twisted roller 31a, 31b to applying the twisted action by cooling device 27 chilled fiber-reinforced resin strands 9 and collecting action.Then, the fiber-reinforced resin strand 9 that is directed into the downstream of twisted roller 31a, the 31b comminutor 13 that is positioned at twisted roller 31a, 31b downstream cuts off and granulating.
Like this, the manufacturing installation of the fiber-reinforced resin strand of present embodiment, upstream side in crosshead 5 possesses the warm-up mill device 200 that comprises a pair of warm-up mill 220,230, and, upstream side at this warm-up mill device 200 has the backward pull bringing device that constitutes with fiber backward pull bringing device 100A～100C by strengthening, and it applies backward pull to the reinforcement that is wound on the warm-up mill 220,230 with fibre bundle 3.Thus, strengthen with fibre bundle 3 and alternately repeatedly be wound on a pair of warm-up mill 220,230 that disposes up and down utilizing above-mentioned backward pull bringing device to apply under the state of backward pull, thereby can be on one side closely contact this warm-up mill 220,230 of utilizing heater 224,234 heating move on one side, be not by the crosshead 5 that leads continuously at normal temperatures but under warmed-up state in advance.
Therefore, even collect the speed high speed of strengthening with fibre bundle 3, because the molten resin temperature that can suppress in the crosshead 5 reduces, so being impregnated into fully, strengthens molten resin with in the fibre bundle 3, and, owing to the molten resin viscosity that can suppress in the crosshead 5 increase, so can also be suppressed at the tension force rising of reinforcements mobile in the crosshead 5 with fibre bundle (having flooded the reinforcement fibre bundle of resin).Therefore, compared with the past, can be with the higher speed of collecting (speed of production), for example surpass the speed of collecting that 40m/ divides and make fiber-reinforced resin strand, and, can reduce to be used to make the space that is provided with of the warm-up mill device 220 of collecting the speed high speed.
Adopt above-mentioned manufacturing installation shown in Figure 4 to carry out the manufacturing experiment of fiber-reinforced resin strand.
The diameter of the warm-up mill body of warm-up mill 220,230 is about 250mm, and the width of peripheral part 221 is about 100mm.Distance between the warm-up mill rotating shaft of a pair of warm-up mill 220,230 is about 400mm.
The length of the bosh 28 of cooling device 27 is 2m.For spray nozzle 29, be configured to zigzag with respect to the twisted wire mobile route, 20 of configurations in the row of the side (downside among Figure 10) of fiber-reinforced resin strand mobile route, configuration is 20 in the row of opposite side (upside among Figure 10).Distance between spray nozzle adjacent on the twisted wire moving direction 29 center line each other is 70mm. Twisted roller 31a, 31b all are the mechanisms that are driven in rotation, and quenching by the modified material to SKD11 (alloy tool steel) forms, and utilize annular knurl processing to form the concavo-convex of diclinic line spacing 1mm on whole roller surface.
Use glass fibre to use fiber, use polypropylene, make the experiment that the twisted wire external diameter is the fiber-reinforced resin strand of 2.4mm thus as thermoplastic resin as strengthening.The result, under the situation of crossheads 5 that will lead with fibre bundle 3 by the reinforcement of warm-up mill 220,230 heating in advance, can be that the high speed that 90m/ divides such (can't obtain the collect speed higher than this speed) can't compare is with it in the past collected with the highest speed of collecting.At this moment, the reinforcement of guiding crosshead 5 is 160～200 ℃ with the temperature of fibre bundle 3.On the other hand, under the situation of not utilizing warm-up mill 220,230 to heat (comparative example), the highest speed of collecting is the 40m/ branch.When the speed of collecting surpasses the 40m/ timesharing, because rising, the viscosity of molten resin cause reinforcement mobile in crosshead 5 significantly to be risen with the tension force of fibre bundle, can't collect.
Figure 13 is another the routine view that is used to illustrate the backward pull bringing device of second embodiment.
In Figure 13, the 111st, the bobbin CD-ROM drive motor, it is connected with the rotating shaft 25a of bobbin 25A, corresponding to twisted roller 31a, 31b reinforcement is driven bobbin 25A rotation with collecting of fiber 1.In addition, 112 and 113 is fixed guide rollers, the 114th, and dance roller moving up and down.The 115th, the dance roller position detector adopts the rotary-type current potential that the knee-action of dance roller 114 is detected in the form of the anglec of rotation.Set positions in the time of will applying set backward pull with fiber 1 towards the reinforcement of the entrance side guiding piece 201 of warm-up mill device 200 is the reference position of dance roller 114.
According to the instruction of reception by the tension controller 116 of the position signalling of the dance roller 114 of dance roller position detector 115 detections, when the position of dance roller 114 when the reference position descends, reduce the rotary speed of bobbin CD-ROM drive motor 111, and when the position of dance roller 114 is higher than the reference position, increase rotary speed, strengthen with fiber 1 thereby set backward pull can be imposed on.As substituting of bobbin CD-ROM drive motor 111, the powder brake of the rotating shaft 25a that is incorporated into bobbin 25A also can be set, when the position of dance roller 114 when the reference position descends, strengthen braking, and when the position of dance roller 114 is higher than the reference position, weaken braking.
Utilize above-mentioned bobbin CD-ROM drive motor 111, fixed guide roller 112,113, dance roller 114, dance roller position detector 115 and tension controller 116 to constitute and strengthen, be used for the reinforcement from bobbin 25A is applied backward pull with fiber 1 with fiber backward pull bringing device 110A.In addition, the reinforcement from other bobbins 25B, 25C is applied backward pull with fiber 1 reinforcement with fiber backward pull bringing device 110B, 110C has with strengthen the same structure with fiber backward pull bringing device 110A.Utilize these to strengthen to constitute and apply the backward pull bringing device of backward pull with fibre bundle 3 to being wound on reinforcement on the warm-up mill 220,230 with fiber backward pull bringing device 110A～110C.
Figure 14 is the view of another example that is used to illustrate the backward pull bringing device of second embodiment.
In Figure 14,32A is accommodating to reel to be the reinforcement fiber accepting container of the reinforcement of long size cylindraceous with fiber 1., under the effect of a plurality of guide rods 121, be mobile in a zigzag and be applied in backward pull with the reinforcement fiber 1 that fiber accepting container 32A extracts out from reinforcement, under the state that has been applied in backward pull, be directed to a pair of warm-up mill 220,230 of warm-up mill device 200.
Utilize above-mentioned a plurality of guide rod 121 to constitute and strengthen with fiber backward pull bringing device 120A, to applying backward pull with fiber 1 from the reinforcement of strengthening with fiber accepting container 32A.In addition, to strengthen from other reinforcement with fiber accepting container 32B, 32C applies backward pull with fiber 1 reinforcement with fiber backward pull bringing device 120B, 120C has and the same structure of reinforcement usefulness fiber backward pull bringing device 120A.Utilize these to strengthen to constitute and apply the backward pull bringing device of backward pull with fibre bundle 3 to being wound on reinforcement on the warm-up mill 220,230 with fiber backward pull bringing device 120A～120C.
In the above-described embodiment, alternately be wound on two structures on the warm-up mill with fibre bundle and be illustrated, but manufacturing installation of the present invention is not limited thereto, and also can adopt for example warm-up mill more than three strengthening.In addition, under the situation that adopts two warm-up mills, also can prick (The I with bundle
Figure A200780015499D0027133556QIETU
け) state will be strengthened with fibre bundle and alternately be wound on two warm-up mills, like this, can increase the contact length of each coiling.
Below the prior art relevant with above-mentioned second embodiment described.
The applicant has formerly proposed as the disclosed method of Japanese kokai publication hei 5-169445 communique as the method (prior art 1) of making continuous fiber reinforced resin strand, wherein, the reinforcement of having collected by the dipping of having twisted resin continuously from crosshead is made continuous fiber reinforced resin strand thus with the continuous fiber reinforced resin strand that fibre bundle constitutes.Utilize Figure 17 that the prior art 1 is described.
Prior art 1 is to make the technology of strengthening with the high continuous fiber reinforced resin strand of the adaptation of fiber and resin.In crosshead 55, supply with molten resin material 52 continuously from extruder 56.Outlet side in this crosshead 55, dispose figuration mould 59, cooler 60, twisted roller (also be referred to as to intersect roller hauling machine) 61a, 61b, pulling roll 62 according to priority, in this crosshead 55, be provided for making reinforcement to move in a zigzag with fibre bundle and it is carried out shredding, improves the branch silk device (dipping roller) 58 of dipping property.
In will strengthening the molten resin material 52 that is impregnated into fiber 51,51... in the crosshead 55, carry out the resin dipping after, utilize figuration mould 59 to carry out figuration and decide section shape, and utilize cooler 60 to carry out hardening by cooling. Twisted roller 61a, 61b are the rollers of a pair of rubber system, are driven and opposite towards each other direction rotation.In addition, these twisted rollers 61a, 61b be configuration obliquely in the opposite direction in horizontal plane, utilize the cross part of these twisted rollers 61a, 61b to come gripping fibers fortified resin twisted wire 53 and towards direction of arrow tractive, thus, this fiber-reinforced resin strand 53 is the center rotation with the axle center.Thus, in cooler 60 and crosshead 55, twist between the branch silk device 58a in downstream.Then, the fiber-reinforced resin strand 53 that constitutes with fibre bundle of the reinforcement that utilizes the comminutor (twisted wire cutting machine) 63 be arranged on the position of leaving pulling roll 62 to cut off by the dipping of having been twisted resin.
Like this, in prior art 1, on one side twisted strengthen and to carry out the dipping of resin on one side with fibre bundle, combine closely securely with fiber and resin material thereby can make to strengthen.In addition, owing to be under the state that the reinforcement of having flooded resin has been carried out twisted with fibre bundle, it to be collected, so can give play under the state that fiber suede is held together in the twisted wire effect of it being collected outside the figuration mould, so, than the situation of reinforcement of having flooded resin not being twisted with fibre bundle, the fiber suede that produces in crosshead is difficult to stop up the figuration mould, thereby can improve the speed of collecting of fiber-reinforced resin strand.
But if will make fiber-reinforced resin strand with the higher speed of collecting, then acting on the reinforcement of being collected in crosshead and moving increases with the tension force on the fibre bundle, can break, thereby collect the limit that there be 30～40m/ minute in speed.
In addition, the applicant has formerly proposed following method, promptly, collected by the dipping that has carried out twisting the fiber-reinforced resin strand that the reinforcement of resin constitutes with fibre bundle continuously from crosshead, make fiber-reinforced resin strand thus, in the method, for being impregnated into fully, strengthens molten synthetic resin with in the fibre bundle, in crosshead, carry out shredding with fibre bundle, especially the synthetic resin that will promote the part that resin floods is heated (prior art 2: Japanese kokai publication hei 6-254850 communique) strengthening.At this moment, in order to carry out above-mentioned heating, the dipping that adopts hot water importing type for example with roller as the dipping roller in the crosshead.
According to the prior art 2, can suppress the reinforcement of normal temperature is reduced with the temperature that fibre bundle imports the molten synthetic resin that causes in the crosshead, the result, the viscosity that can suppress the molten synthetic resin in the crosshead rises.Thus, inhibitory action can be expected the high speed of the speed of collecting of fiber-reinforced resin strand in the increase of the reinforcement of being collected and moving with the tension force on the fibre bundle in crosshead.
But, according to the experiment that the inventor carried out, in prior art 2, when the speed of collecting of continuous fiber reinforced resin strand surpasses 40m/ minute, molten resin is impregnated into the degree of strengthening with fibre bundle can be worsened, and the reinforcement of moving in crosshead can be risen with the tension force of fibre bundle and be caused producing and break.
Given this, the inventor expects, whether can be not in crosshead heating be used to promote the synthetic resin of the part of resin dipping, does but heating in advance import to the reinforcement fibre bundle in the crosshead? in the above-mentioned Japanese kokai publication hei 6-254850 communique that the applicant formerly proposes, then can heat the but also not mentioned method that is used to implement this idea to the reinforcement that imports in the crosshead in advance with fiber though mentioned if necessary.
On the other hand, in Japanese kokai publication hei 5-162135 communique, mentioned the manufacture method (prior art 3) of fiber-reinforced thermoplastic resin structure, this method is to collect continuous reinforcing fiber on one side, the thermoplastic resin of fusion is coated it and flood and make the method for fiber-reinforced thermoplastic resin structure, wherein, cover at the thermoplastic resin that makes fusion, before the dipping intensified fiber, utilize the hot air type preheating furnace reinforcing fiber to be preheating to more than the melt temperature of thermoplastic resin, thereby promote the thermoplastic resin impregnated in reinforcing fiber of fusion, improve the speed of collecting with this.
In the prior art 3, import reinforcing fiber (glass rove fiber) in the hot air type preheating furnace and be heated to about 300 ℃, and, obtain banded fiber-reinforced thermoplastic resin structure (glass fiber-reinforced nylon 6/6) with 18m/ minute the speed of collecting.
In addition, the manufacture method (prior art 4) of long-fiber-reinforced thermoplastic composite is disclosed in Japanese kokai publication hei 7-251437 communique, wherein, when making the long-fiber-reinforced thermoplastic composite, make before thermoplastic resin is attached on the continuous reinforcing fibre, will continuous reinforcing fibre import in the The pre-heat treatment device and heat in advance.
In the prior art 4, adopt the The pre-heat treatment device of hot air type or infrared radiation formula, under the situation that adopts the combination of fiber/resin, for example glass fibre/acrylic resin, continuous reinforcing fibre is heated in advance with 120～230 ℃ The pre-heat treatment temperature (heat treated temperature), The pre-heat treatment time (heat treated time) of 10 seconds～1 minute.In an embodiment, at 200 ℃ of following heat treated (The pre-heat treatment) glass fibre, obtain banded long-fiber-reinforced thermoplastic composite with 20m/ minute the speed of collecting.
But, in above-mentioned prior art 3,4, molten resin is impregnated into strengthen with before in the fibre bundle, when the continuous reinforcement of being moved collecting is heated with fibre bundle, because what utilize is the noncontact mode of heatings such as the needed hot air type of long mobile route that extend with the horizontal direction of fibre bundle along strengthening, so under the situation of the high speed of realizing collecting speed (speed of production), need be used to be provided with the big space of the heater (preheating device) of longer size, thereby have certain problem.
That is to say, the manufacturing installation of the fiber-reinforced resin strand of above-mentioned second embodiment is a device of making fiber-reinforced resin strand, it is characterized in that having: crosshead is used for making molten resin to be impregnated into the reinforcement fibre bundle of the long size that imports continuously from upstream side; The twisted roller is arranged on the downstream of this crosshead, and twisted has flooded the reinforcement fibre bundle of resin; Cooling device is arranged between this twisted roller and the crosshead, is used for being cooled off with the fiber-reinforced resin strand that fibre bundle constitutes by the reinforcement of extracting out from above-mentioned crosshead; The warm-up mill device is arranged on the upstream side of above-mentioned crosshead, is used for the reinforcement that this crosshead of subtend imports and heats in advance with fibre bundle; And the backward pull bringing device, be arranged on the upstream side of this warm-up mill device, between this backward pull bringing device and this warm-up mill device, apply backward pull with fibre bundle to strengthening; Above-mentioned warm-up mill device has at least two warm-up mills, and these at least two warm-up mills can alternately repeatedly be reeled above-mentioned reinforcement with fibre bundle and heating respectively; Above-mentioned backward pull bringing device applies backward pull so that strengthen with above-mentioned each warm-up mill of fibre bundle contact.
The manufacturing installation of the fiber-reinforced resin strand of above-mentioned second embodiment have the crosshead of being arranged on upstream side the warm-up mill device and be arranged on the upstream side of this warm-up mill device and the reinforcement on each warm-up mill that is wound on above-mentioned warm-up mill device applied the backward pull bringing device of backward pull with fibre bundle.Thus, strengthen and applied by the backward pull bringing device under the state of backward pull with fibre bundle, alternately repeatedly be wound at least two above-mentioned warm-up mills that for example dispose up and down of warm-up mill device, thus, closely contact on one side on one side and move with warmed-up this warm-up mill, from rather than at normal temperatures but under warmed-up state in advance by the crosshead that leads continuously.
Therefore, even strengthen the speed of collecting high speed with fibre bundle, also can make molten resin be impregnated into reinforcement fully by the molten resin temperature reduction that suppresses in the crosshead with in the fibre bundle, and, can be suppressed at the tension force rising of reinforcement mobile in this crosshead by the molten resin viscosity increase that suppresses in the crosshead with fibre bundle (having flooded the reinforcement fibre bundle of resin).Therefore, compared with the past, can be with the higher speed of collecting (speed of production), for example surpass 40m/ minute the speed of collecting and make fiber-reinforced resin strand, and, can reduce to be used to make the space that is provided with of the warm-up mill device of collecting the speed high speed.
In the manufacturing installation of the fiber-reinforced resin strand of above-mentioned second embodiment, preferably, at least one in above-mentioned each warm-up mill has a plurality of circumferential grooves that are arranged side by side along roller rotating shaft direction at the roller peripheral part, strengthens groove with fibre bundle as guiding.
Below with reference to accompanying drawings the 3rd embodiment of the present invention is described.Figure 15 is the structure key diagram of manufacturing installation of the fiber-reinforced resin strand of third embodiment of the invention.
As shown in figure 15, in order to carry out The pre-heat treatment, will be by the reinforcement that the reinforcement of sending from a plurality of bobbins 4 constitutes with fiber 1 fibre bundle 3 guiding warm-up mill devices 200, this warm-up mill device 200 has a pair of warm-up mill 220,230 of configuration up and down.Strengthen to be applied backward pull by a plurality of guide rods 33 on one side with fibre bundle 3 and alternately repeatedly be wound on a pair of warm-up mill 220,230 on one side, thus, heat up under the effect that the contact that produces is heated closely being contacted with on the warm-up mill 220,230 that has been heated.
Extruder 6 and the crosshead (molten resin bath container) 5 that is built-in with conveyor screw 7 is being set in the downstream near this warm-up mill device 200.Supply with molten resin (thermoplastic resin of fusion) 2 from this extruder 6 continuously to crosshead 5, and, to the reinforcement that the heated up fibre bundle 3 of crosshead 5 importings from above-mentioned warm-up mill device 200.In this crosshead 5, the reinforcement that is provided for making molten resin 2 to be impregnated into supplying with continuously is with a plurality of the branch silk devices in the fibre bundle 3 (shredding and flood use roller) 8.In the outlet of crosshead 5 figuration mould 26 is installed, be used for to by collect from this crosshead 5 and carried out twisting dipping the reinforcement of resin carry out figuration with the high temperature fiber fortified resin twisted wire 9 that fibre bundle constitutes.
Downstream in the crosshead 5 that this figuration mould 26 has been installed is provided with cooling device 27, is used for the high temperature fiber fortified resin twisted wire that will derive from this crosshead 59 and cools off at cooling water.In addition, in downstream twisted machine 34 is set near this cooling device 27.Utilize the manufacturing installation manufacturing of present embodiment and be directed to the fiber-reinforced resin strand 9 in twisted machine 34 downstreams, the comminutor (twisted wire cutting machine) 13 that is positioned at twisted machine 34 downstreams cuts off and granulating.
Above-mentioned warm-up mill device 200 is identical with the apparatus structure of above-mentioned second embodiment that illustrates with reference to Fig. 6～Fig. 9, and therefore, in this description will be omitted.
In addition, above-mentioned cooling device 27 is identical with apparatus structure with reference to above-mentioned second embodiment of Figure 10 and Figure 11 explanation, and therefore, in this description will be omitted.
Below above-mentioned twisted machine 34 is described.This twisted machine 34 has a pair of twisted roller 31a, 31b.These twisted rollers 31a, the 31b roll structure with above-mentioned second embodiment of reference Figure 12 explanation respectively are identical, and therefore, in this description will be omitted.
The situation that the manufacturing installation of the fiber-reinforced resin strand that utilizes such formation is made fiber-reinforced resin strand describes below.The reinforcement that is made of with fiber the reinforcement of sending from a plurality of bobbins 4 is with fibre bundle 3, the a pair of heating of being disposed up and down guides with roller 220,230, alternately repeatedly be wound on heating with contacting heating on the roller 220,230 while being applied in backward pull, become soaking condition thus, be directed to then in the crosshead 5.Strengthen with fibre bundle 3 by being full of each minute in the crosshead 5 of the high-temperature fusion resin 2 of extruder 6 supplies in silk device 8 the process, flooded by resin and become the reinforcement fibre bundle that has flooded resin.In addition, under the twisted action of twisted machine 34, this reinforcement of having flooded resin begins and the twisted that extends as starting point with the branch silk device 8 of fibre bundle with the downstream in the crosshead 5.Like this, utilize crosshead 5 to make and be impregnated into reinforcement with the fibre bundle 3 from extruder 6 molten resin supplied 2, and, utilize the twisted action of twisted machine 34 and the reinforcement of having flooded resin is twisted with fibre bundle, thereby can be have continuously collected by the dipping of having twisted the fiber-reinforced resin strand 9 that the reinforcement of resin constitutes with fibre bundle from crosshead 5.
The fiber-reinforced resin strand 9 of the high temperature of collecting continuously via inborn nature mould 26 from crosshead 5, be directed to cooling device 27, move in the cooling water in bosh 28, and, by being subjected to from across the effect of the current of the spray nozzle 29 (with reference to Figure 10,11) of the mode indentation of its mobile route configuration and hardening by cooling is directed to twisted roller 31a, 31b then.Utilize twisted roller 31a, 31b to applying the twisted action by cooling device 27 chilled fiber-reinforced resin strands 9 and collecting action.The comminutor 13 that the fiber-reinforced resin strand 9 that is directed into the downstream of twisted machine 34 is positioned at twisted machine 34 downstreams cuts off and granulating (with reference to Figure 16).
Like this, the manufacturing installation of the fiber-reinforced resin strand of present embodiment, between crosshead 5 and twisted machine 34, as cooling device 27, in the bosh 28 that high temperature fiber fortified resin twisted wire 9 along continuous straight runs of collecting from crosshead 5 move cooling water, along the moving direction devices spaced apart of fiber-reinforced resin strand 9 a plurality of spray nozzles 29 are set, be used at cooling water towards fiber-reinforced resin strand 9 water sprays.
Therefore, the current that utilize these spray nozzle 29 water sprays to be produced stir the cooling water in the bosh, thereby with lead continuously from the entrance side to the outlet side fiber-reinforced resin strand 9 that in cooling water, moves and cooling water flow is contacted with fiber-reinforced resin strand 9 of new cooling water flow, thus, than the bosh that does not have spray nozzle 29, can carry out continuous fiber reinforced resin strand 9 and the heat exchange of cooling water, the speed of the continuous fiber reinforced resin strand 9 of raising cooling efficiently.Thus, when making fiber-reinforced resin strand with the speed of collecting that for example surpasses 40m/ minute such high speed, than the existing situation of collecting speed below 40m/ minute, even do not increase the length (along the length of fiber-reinforced resin strand moving direction) of bosh, can cool off fiber-reinforced resin strand 9 fully yet.Therefore, as compared with the past, can be with at a high speed the speed of collecting, for example surpass 40m/ minute the speed of collecting, the resin material of making slidably that does not produce fiber-reinforced resin strand 9 in twisted machine 34 is impregnated into the fiber-reinforced resin strand of strengthening with in the fibre bundle 9 fully.
In addition, spray nozzle 29 is with the mode indentation configuration across the fiber-reinforced resin strand mobile route.Therefore, can suppress the effect upper/lower positions secund of the current that fiber-reinforced resin strand 9 produced at spray nozzle 29, can make that fiber-reinforced resin strand 9 is smooth and easy as the crow flies to move.As substituting of zigzag configuration, also can adopt arranged opposite.
In addition, in the manufacturing installation of the fiber-reinforced resin strand of present embodiment, twisted machine 34 is to be made of with the fibre bundle function of twisting and a pair of twisted roller 31a, the 31b that collect the function of continuous fiber-reinforced resin strand 9 reinforcement that has having flooded resin, so the machine of collecting needn't be installed in addition.Therefore, can the simplification device structure.
In addition, the manufacturing installation of the fiber-reinforced resin strand of present embodiment, also the upstream side in crosshead 5 has warm-up mill device 200, and this warm-up mill device is this reinforcement fibre bundle of heating before will strengthening with fibre bundle 3 these crossheads 5 of importing.When fibre bundle is used in the reinforcement of supplying with normal temperature to crosshead at a high speed, molten resin temperature in this crosshead can reduce and make the viscosity of molten resin increase, strengthen with the deterioration of the degree in the fibre bundle thereby cause molten resin to be impregnated into, and, in crosshead, collected and the reinforcement of moving with tension force (the collecting resistance) increase of fibre bundle.Therefore, by above-mentioned warm-up mill device 200 is set, above-mentioned degree of steeping is not worsened, and significantly suppress the rising of mentioned strain, thereby can realize the more high speed of the speed of collecting (speed of production) of fiber-reinforced resin strand 9.
In addition, in the manufacturing installation of the fiber-reinforced resin strand of present embodiment, twisted machine 34 is by metal a pair of twisted roller 31a, the 31b formation that forms concavo-convex 31Aa, 31Ba (with reference to Figure 12) on the roller surface.Therefore, because the coefficient of friction between metal twisted roller 31a, 31b and the fiber-reinforced resin strand 9 increases, thereby complement each other with the abundant cooling effect of 27 pairs of fiber-reinforced resin strands 9 of cooling device, fiber-reinforced resin strand 9 is not produced slidably more effectively to fiber-reinforced resin strand 9 twisting.In addition, owing to be metal twisted roller, therefore, the twisted roller than rubber rollers system is difficult to wear and tear, long service life, so, can make fiber-reinforced resin strand 9 not take place to collect for a long time slidably.
(embodiment)
Adopt the device shown in above-mentioned Figure 15 and Figure 10～12 to carry out the manufacturing test of fiber-reinforced resin strand.Adopt glass fibre to use fiber, adopt polypropylene as thermoplastic resin as strengthening.
Cooling device 27 to embodiment 1～4 describes.The length of bosh 28 is 2m.For spray nozzle 29, be configured to zigzag with respect to the twisted wire mobile route, 20 of configurations in the row of the side (downside among Figure 10) of fiber-reinforced resin strand mobile route, configuration is 20 in the row of opposite side (upside among Figure 10).Distance between spray nozzle adjacent on the twisted wire moving direction 29 center line each other is 70mm.The length of the bosh 28 in comparative example 1 and the comparative example 2 also is 2m (comparative example 1,2: do not have spray nozzle 29).
Preheating in embodiment 1～4 and comparative example 1,2 is warmed up to 300 ℃ with in the heater 200 with the roll temperature that heats with roller 220,230.At this moment, the reinforcement of importing crosshead 5 is about 250 ℃ with the temperature of fibre bundle 3.
Twisted roller (intersection roller) 31a, 31b to the twisted machine 34 in embodiment 1～4 and the comparative example 1,2 describe. Twisted roller 31a, 31b all are the mechanisms that are driven in rotation, and by the modified material formation of SKD11 (alloy tool steel), utilize annular knurl processing to form the concavo-convex of diclinic line spacing 1mm on whole roller surface.
From pilot study as can be known, be below 75 ℃ as if firm temperature by the continuous fiber reinforced resin strand behind the bosh, then at twisted roller place, can not produce and collect continuous fiber reinforced resin strand slidably.Therefore, in table 1, illustrated and utilize length for the bosh of 2m, just the temperature by the continuous fiber reinforced resin strand behind the bosh is below 75 ℃ the time, to collecting the result that speed is investigated.
Table 1
Distinguish The twisted wire external diameter The highest speed of collecting Cooling device The preheating heater Remarks: the twisted wire temperature before the cooling
Embodiment
1 4mm 55m/ minute Bosh+spray nozzle Have 250℃
Embodiment
2 2.4mm More than 90m/ minute Bosh+spray nozzle Have 250℃
Embodiment
3 4mm 44m/ minute Bosh+spray nozzle Have 320℃
Embodiment
4 2.4mm More than 90m/ minute Bosh+spray nozzle Have 320℃
Comparative example 1 4mm 26m/ minute Bosh Have 320℃
Comparative example 2 2.4mm 40m/ minute Bosh Have 320℃
In embodiment 1, under the restrictive condition of short 2m cooling path, can be the continuous fiber reinforced resin strand that 4mm slightly is difficult to cool off to collect external diameter above 50m/ minute speed.
In embodiment 2, under the restrictive condition of short 2m cooling path, can collect external diameter with the high speed that 90m/ minute such (can't obtain the collect speed higher than this speed) can't be compared with it in the past is 2.4mm thin slightly continuous fiber reinforced resin strand like this.
In embodiment 3, be when collecting the fiber-reinforced resin strand of the 4mm identical with embodiment 1 diameter, take molten resin temperature in the crosshead to be higher than embodiment 1 and the situation of the condition that is difficult to cool off.Thick and temperature, also can be utilized short 2m cooling path, collect above-mentioned continuous fiber reinforced resin strand to be higher than the existing speed above 40m/ minute of collecting speed (with reference to comparative example 1) under high a lot of high-temperature condition than typical temperature at external diameter.
In embodiment 4, be when collecting the fiber-reinforced resin strand of the 2.4mm identical with embodiment 2 diameters, take molten resin temperature in the crosshead to be higher than embodiment 2 and the situation of the condition that is difficult to cool off.In temperature than typical temperature under high a lot of high-temperature condition, also can utilize short 2m cooling path, with 90m/ minute such (can't obtain the collect speed higher) than this speed in the past (with reference to the comparative example 2) high speed that can't compare with it collect above-mentioned fiber-reinforced resin strand.
On the other hand, comparative example 1 comes handling with the fiber-reinforced resin strand of embodiment 3 diameters identical (being 4mm) with preheating condition similarly to Example 3, and its difference is, does not carry out the water spray of spray nozzle in bosh.In this comparative example 1, when surpassing speed 26m/ minute that is lower than embodiment 3 (collecting speed: 44m/ minute), slip has taken place.
In addition, comparative example 2 comes handling with the fiber-reinforced resin strand of embodiment 4 diameters identical (being 2.4mm) with preheating condition similarly to Example 4, and its difference is, does not carry out the water spray of spray nozzle in bosh.In this comparative example 2, when surpassing speed 40m/ minute that is lower than embodiment 4 (collecting more than speed: 90m/ minute), slip has taken place.
In an embodiment of the present invention, utilize warm-up mill device 200 to strengthen the heating of using fibre bundle, but the manufacturing installation of fiber-reinforced resin strand of the present invention also can be brought into play effect for not adopting the warm-up mill device also can suitably keep the situation of the molten resin viscosity in the crosshead.
Below the prior art relevant with the 3rd embodiment described.
As the device of making fiber-reinforced resin strand, the applicant has formerly proposed the disclosed device of Japanese kokai publication hei 5-169445 communique.Utilize Figure 17 to be described.
The manufacturing installation of this existing fiber-reinforced resin strand is to make the device of strengthening with the high fiber-reinforced resin strand of the adaptation of fiber and resin.In crosshead (dipping head) 55, supply with molten resin material 52 from extruder 56 continuously.At the outlet side of this crosshead 55, dispose figuration mould 59, cooler 60, twisted roller (also be referred to as to intersect roller hauling machine) 61a, 61b, pulling roll 62 according to priority, the branch silk device 58 that carries out shredding with fibre bundle to strengthening is set in this crosshead 55.
In will strengthening the molten resin material 52 that is impregnated into fiber 51,51... in the crosshead 55, carry out the resin dipping after, utilize figuration mould 59 to carry out figuration and decide its section shape, and utilize cooler 60 to carry out hardening by cooling. Twisted roller 61a, 61b are the rollers of rubber system, are driven and rotation in the opposite direction.In addition, these twisted rollers 61a, 61b be configuration obliquely in the opposite direction in horizontal plane, utilize the cross part of these twisted rollers 61a, 61b to come gripping fibers fortified resin twisted wire 53 and towards direction of arrow tractive, thus, this fiber-reinforced resin strand 53 is the center rotation with the axle center.Thus, in cooler 60 and crosshead 55, apply twisted between the branch silk device 58a in downstream.Then, utilize the comminutor 63 that is arranged on the position of leaving pulling roll 62 to cut off the fiber-reinforced resin strand 53 of having been twisted.
Like this, the fiber-reinforced resin strand that constitutes with fibre bundle in the reinforcement of having collected by the dipping of having twisted resin from crosshead (dipping head) continuously, when making fiber-reinforced resin strand, experiment according to the inventor, be under the situation of continuous fiber reinforced resin strand of 2.4mm at external diameter, when the speed of collecting (speed of production) of fiber-reinforced resin strand surpasses 40m/ minute, on one side can slide being used on one side fiber-reinforced resin strand being carried out producing between twisted roller that twisted collects and the fiber-reinforced resin strand.
Therefore, for the arrival twisted roller fiber-reinforced resin strand of collecting from crosshead and along continuous straight runs moves is before cooled off fully, adopt bosh, the fiber-reinforced resin strand that be used for storing cooling water, along continuous straight runs is moved cools off by this cooling water.Like this, need have the bosh that fully cools off Len req, and the twisted roller is set, so there is the tendency that weakens in the twisted degree of bosh upstream side in the downstream of the bosh of this length size.As a result, along with the high speed of the speed of collecting of fiber-reinforced resin strand, on one side strengthen when carrying out the resin dipping with fibre bundle at one side twisted, its twisted degree becomes more weak state, exists molten resin can not be impregnated into the danger of strengthening with in the fibre bundle fully.
Therefore, the manufacturing installation of the fiber-reinforced resin strand that the purpose of the 3rd embodiment is to provide following, the fiber-reinforced resin strand that constitutes with fibre bundle in the reinforcement of having collected by the dipping of having twisted resin from crosshead continuously, when making fiber-reinforced resin strand, can be with than existingly fastly collecting speed (speed of production), for example surpassing 40m/ minute the speed of collecting and make fiber-reinforced resin strand.
That is to say, the manufacturing installation of the fiber-reinforced resin strand of the 3rd embodiment is a device of making fiber-reinforced resin strand, it is characterized in that having: crosshead is used for making molten resin to be impregnated into the reinforcement fibre bundle of the long size that imports continuously from upstream side; The twisted machine is arranged on the downstream of this crosshead, and twisted has flooded the reinforcement fibre bundle of resin; Be arranged on the cooling device between above-mentioned crosshead and the above-mentioned twisted machine, be used for cooling off with the fiber-reinforced resin strand that fibre bundle constitutes by the reinforcement of extracting out from above-mentioned crosshead; And collect machine, and be arranged on the downstream of above-mentioned cooling device, collect fiber-reinforced resin strand from above-mentioned crosshead; Above-mentioned cooling device has bosh and a plurality of spray nozzle, this bosh stores cooling water, make the fiber-reinforced resin strand collect from above-mentioned crosshead can pass through cooling water, these a plurality of spray nozzles along the moving direction devices spaced apart of fiber-reinforced resin strand be arranged in the above-mentioned bosh and in above-mentioned cooling water and spray water towards fiber-reinforced resin strand.
The manufacturing installation of the fiber-reinforced resin strand of the 3rd embodiment has the cooling device that is provided with between crosshead and twisted roller.In storage is used to make the bosh of the cooling water that the high temperature fiber fortified resin twisted wire collected from above-mentioned crosshead passes through, along the moving direction devices spaced apart of fiber-reinforced resin strand be provided with a plurality of spray nozzles, be used for spraying water towards fiber-reinforced resin strand at cooling water.Therefore, the current that utilize these spray nozzles water spray to be produced stir the cooling water in the bosh, thereby new cooling water flow can be led continuously by the fiber-reinforced resin strand in the cooling water and cooling water flow is contacted with fiber-reinforced resin strand.Thus, than the bosh that does not have spray nozzle, can carry out the heat exchange of fiber-reinforced resin strand and cooling water, the speed of raising cooling fiber-reinforced resin strand efficiently.Thus, when making fiber-reinforced resin strand with the speed of collecting that for example surpasses 40m/ minute such high speed, than the existing situation of collecting speed below 40m/ minute, even do not increase the length (along the length of fiber-reinforced resin strand moving direction) of bosh, can cool off fiber-reinforced resin strand fully yet.Therefore, as compared with the past, can be with at a high speed the speed of collecting, for example surpass 40m/ minute the speed of collecting, the resin material of making slidably that does not produce continuous fiber reinforced resin strand in the twisted machine fully is impregnated into the fiber-reinforced resin strand of strengthening with in the fibre bundle.
In the manufacturing installation of the fiber-reinforced resin strand of the 3rd embodiment, preferred above-mentioned spray nozzle is with across the mode arranged opposite of fiber-reinforced resin strand mobile route or be configured to zigzag.
In the manufacturing installation of this fiber-reinforced resin strand, towards the spray nozzle of the fiber-reinforced resin strand water spray that in cooling water, moves with across the mode arranged opposite of fiber-reinforced resin strand mobile route or be configured to zigzag.Therefore, can suppress the effect upper/lower positions secund of fiber-reinforced resin strand, can make fiber-reinforced resin strand smooth and easy as the crow flies mobile at the current that spray nozzle produced.
In the manufacturing installation of the fiber-reinforced resin strand of the 3rd embodiment, preferably, above-mentioned twisted machine is made of a pair of twisted roller and is also used as the above-mentioned machine of collecting, above-mentioned twisted roller is maintained in the mode that separately rotation lays respectively on the parallel plane, and, the state that above-mentioned twisted roller differs from one another with the angle of each rotation on above-mentioned plane, with mode arranged opposite across fiber-reinforced resin strand.
In the manufacturing installation of this fiber-reinforced resin strand, the twisted machine is made of a pair of twisted roller, above-mentioned twisted roller is maintained in the mode that separately rotation lays respectively on the parallel plane (horizontal plane), and, the state that above-mentioned twisted roller differs from one another with the angle of rotation on above-mentioned plane, with mode arranged opposite across fiber-reinforced resin strand, and, these twisted facility have the function that the reinforcement of having flooded resin is twisted with fibre bundle, with the function of collecting continuous fiber-reinforced resin strand, so this twisted machine can be also used as the machine of collecting, thereby the machine of collecting can be set in addition.Therefore, structure that can simplification device.
In the manufacturing installation of the fiber-reinforced resin strand of the 3rd embodiment, preferably, also have the preheating heater, this preheating is arranged on the upstream side of above-mentioned crosshead with heater, and the above-mentioned reinforcement that is directed to this crosshead is heated with fibre bundle.
For the manufacturing installation of this fiber-reinforced resin strand, preheating is arranged on the upstream side of crosshead with heater, it is heated before importing crosshead with fibre bundle will strengthening.When fibre bundle is used in the reinforcement of supplying with normal temperature to crosshead at a high speed, can make the viscosity of molten resin increase owing to the molten resin temperature in the crosshead reduces, strengthen with the deterioration of the degree in the fibre bundle thereby cause molten resin to be impregnated into, and, in crosshead, collected and the reinforcement of moving with tension force (the collecting resistance) increase of fibre bundle.Therefore, by above-mentioned preheating heater is set, can avoids the deterioration of above-mentioned degree of steeping and significantly suppress the rising of mentioned strain, thereby can realize the high speed of the speed of collecting (speed of production) of fiber-reinforced resin strand more significantly.
In the manufacturing installation of the fiber-reinforced resin strand of the 3rd embodiment, above-mentioned twisted machine preferably constitutes by forming concavo-convex metal at least one pair of twisted roller on the roller surface.
In the manufacturing installation of this fiber-reinforced resin strand, the twisted machine constitutes by forming concavo-convex metal at least one pair of twisted roller on the roller surface.Therefore, because the twisted roller of aforementioned metal system and the coefficient of friction between the fiber-reinforced resin strand increase, thereby complement each other with the abundant cooling effect of aforementioned cooling device to fiber-reinforced resin strand, when the twisted machine that constitutes at the twisted roller that utilizes by pair of metal system is twisted fiber-reinforced resin strand, can suppress the slip between fiber-reinforced resin strand and the twisted roller more effectively.In addition, owing to be metal twisted roller, therefore, the twisted roller than rubber system is difficult to wear and tear, long service life, so, can make continuous fiber reinforced resin strand not take place to collect for a long time slidably.

Claims (19)

1. the manufacturing installation of a fiber-reinforced resin strand is characterized in that,
Have: divide the silk device, be arranged on from extruder and accept in the crosshead of molten resin material without interruption, carry out shredding with fibre bundle strengthening; The twisted roller that comprises at least one pair roller, be arranged on the downstream position of the outlet nozzle of above-mentioned crosshead, extract the fiber-reinforced resin strand that constitutes by the fibre bundle that has flooded resin out from above-mentioned outlet nozzle, and make this fiber-reinforced resin strand twisted, wherein, this fibre bundle that has flooded resin is at the fibre bundle that has been flooded above-mentioned molten resin material by the above-mentioned reinforcement after the shredding of above-mentioned branch silk device in fibre bundle;
At least one pair roller of the roller centering that above-mentioned twisted roller is included forms irregular metal by the surface and constitutes.
2. the manufacturing installation of fiber-reinforced resin strand as claimed in claim 1, it is characterized in that, downstream position at above-mentioned twisted roller, the twisted that is made of pair of rolls that is provided with the twisted state that is used to keep above-mentioned fiber-reinforced resin strand keeps roller, and this twisted keeps two rollers of roller to form irregular metal by the surface constituting.
3. the manufacturing installation of fiber-reinforced resin strand as claimed in claim 1 is characterized in that, above-mentioned metallic surface hardness is set at more than the hardness suitable with Hs60.
4. the manufacturing installation of fiber-reinforced resin strand as claimed in claim 1 is characterized in that, the external diameter of above-mentioned roller all is set at more than the 50mm.
5. the manufacturing installation of fiber-reinforced resin strand as claimed in claim 1, it is characterized in that, the included particular roll centering of above-mentioned twisted roller, at least one roller can carry out action approaching and that leave with respect to another roller, and, can push with certain or variable pressing force with respect to fiber-reinforced resin strand.
6. the manufacturing installation of fiber-reinforced resin strand as claimed in claim 2, it is characterized in that, at least one roller in two rollers of above-mentioned twisted maintenance roller can carry out action approaching and that leave with respect to another roller, and, can push with certain or variable pressing force with respect to fiber-reinforced resin strand.
7. the manufacturing installation of fiber-reinforced resin strand as claimed in claim 5, it is characterized in that, has roller guiding mechanism at interval, this roller guiding mechanism at interval can be adjusted interval between each right roller of the formation roller of above-mentioned twisted roller, so that described interval becomes the minimum interval of setting corresponding to the diameter of above-mentioned fiber-reinforced resin strand.
8. the manufacturing installation of fiber-reinforced resin strand as claimed in claim 6, it is characterized in that, has roller guiding mechanism at interval, this roller guiding mechanism at interval can be adjusted the interval of two rollers of above-mentioned twisted maintenance roller, so that described interval becomes the minimum interval of setting corresponding to the diameter of above-mentioned fiber-reinforced resin strand.
9. the manufacturing installation of a fiber-reinforced resin strand is a device of making fiber-reinforced resin strand, it is characterized in that,
Have: crosshead is used for making molten resin to be impregnated into the reinforcement fibre bundle of the long size that imports continuously from upstream side; The twisted roller is arranged on the downstream of this crosshead, makes the reinforcement of having flooded resin fibre bundle twisted; Cooling device is arranged between this twisted roller and the crosshead, is used for being cooled off with the fiber-reinforced resin strand that fibre bundle constitutes by the reinforcement of extracting out from above-mentioned crosshead; The warm-up mill device is arranged on the upstream side of above-mentioned crosshead, is used for the reinforcement that this crosshead of subtend imports and heats in advance with fibre bundle; And the backward pull bringing device, be arranged on the upstream side of this warm-up mill device, between this backward pull bringing device and this warm-up mill device, apply backward pull with fibre bundle to strengthening;
Above-mentioned warm-up mill device has at least two warm-up mills, and these at least two warm-up mills can alternately repeatedly be reeled above-mentioned reinforcement with fibre bundle and heating respectively; Above-mentioned backward pull bringing device applies backward pull so that strengthen with above-mentioned each warm-up mill of fibre bundle contact.
10. the manufacturing installation of fiber-reinforced resin strand as claimed in claim 9 is characterized in that, at least one in above-mentioned each warm-up mill has a plurality of circumferential grooves that are arranged side by side along roller rotating shaft direction at the roller peripheral part, strengthens the groove of using fibre bundle as guiding.
11. manufacturing installation as claim 9 or 10 described fiber-reinforced resin strands, it is characterized in that, above-mentioned twisted roller has at least one pair roller, this at least one pair roller is arranged on the downstream position of above-mentioned crosshead and makes the reinforcement of having flooded resin fibre bundle twisted, and these rollers form irregular metal by the surface and constitute;
Above-mentioned cooling device has: bosh, store cooling water, and make the fiber-reinforced resin strand of extracting out from above-mentioned crosshead can pass through cooling water; A plurality of spray nozzles, along the moving direction devices spaced apart of fiber-reinforced resin strand be configured in the above-mentioned bosh, and, in above-mentioned cooling water, spray water towards fiber-reinforced resin strand.
12. the manufacturing installation of a fiber-reinforced resin strand is a device of making fiber-reinforced resin strand, it is characterized in that,
Have: crosshead is used for making molten resin to be impregnated into the reinforcement fibre bundle of the long size that imports continuously from upstream side; The twisted machine is arranged on the downstream of this crosshead, makes the reinforcement of having flooded resin fibre bundle twisted; Cooling device is arranged between above-mentioned crosshead and the above-mentioned twisted machine, is used for being cooled off with the fiber-reinforced resin strand that fibre bundle constitutes by the reinforcement of extracting out from above-mentioned crosshead; And collect machine, and be arranged on the downstream of above-mentioned cooling device, collect fiber-reinforced resin strand from above-mentioned crosshead;
Above-mentioned cooling device has bosh and a plurality of spray nozzle, this bosh stores cooling water, make the fiber-reinforced resin strand collect from above-mentioned crosshead can pass through cooling water, these a plurality of spray nozzles along the moving direction devices spaced apart of fiber-reinforced resin strand be arranged in the above-mentioned bosh and in above-mentioned cooling water and spray water towards fiber-reinforced resin strand.
13. the manufacturing installation of fiber-reinforced resin strand as claimed in claim 12 is characterized in that, above-mentioned spray nozzle is with across the mode arranged opposite of fiber-reinforced resin strand mobile route or be configured to zigzag.
14. the manufacturing installation of fiber-reinforced resin strand as claimed in claim 12, it is characterized in that, above-mentioned twisted machine is made of a pair of twisted roller and is also used as the above-mentioned machine of collecting, above-mentioned a pair of twisted roller is maintained in the mode that separately rotation lays respectively on the parallel plane, and the state that above-mentioned a pair of twisted roller differs from one another with the angle of this each rotation on above-mentioned plane is across the fiber-reinforced resin strand arranged opposite.
15. the manufacturing installation of fiber-reinforced resin strand as claimed in claim 12, it is characterized in that, also have the preheating heater, this preheating is arranged on the upstream side of above-mentioned crosshead with heater, and the above-mentioned reinforcement of this crosshead that leads is heated with fibre bundle.
16. the manufacturing installation of fiber-reinforced resin strand as claimed in claim 12 is characterized in that, above-mentioned twisted machine constitutes by forming irregular metal at least one pair of twisted roller on the roller surface.
17. the manufacture method of a fiber-reinforced resin strand, comprise following operation, promptly, in crosshead, carry out shredding and impregnated with molten resin material with fibre bundle to strengthening, and the fiber-reinforced resin strand that formation is made of the fibre bundle that has flooded resin, extract this fiber-reinforced resin strand out and make this fiber-reinforced resin strand twisted from the outlet nozzle of above-mentioned crosshead
It is characterized in that, adopt the twisted roller to extract fiber-reinforced resin strand out and make this fiber-reinforced resin strand twisted from the outlet nozzle of above-mentioned crosshead, this twisted roller is included in separately surface and has at least one pair roller concavo-convex and that be made of metal.
18. the manufacture method of a fiber-reinforced resin strand, comprise following operation, promptly, by in crosshead, making molten resin be impregnated into pre-heated reinforcement with in the fibre bundle, and the fiber-reinforced resin strand that formation is made of the fibre bundle that has flooded resin, and extract this fiber-reinforced resin strand out from above-mentioned crosshead, after cooling, make this fiber-reinforced resin strand twisted
It is characterized in that, contact with pre-heated warm-up mill with fibre bundle, this reinforcement is heated in advance with fibre bundle by making the above-mentioned reinforcement that has been applied in backward pull.
19. the manufacture method of a fiber-reinforced resin strand, comprise following operation, promptly, by being impregnated into, strengthens molten resin with forming the fiber-reinforced resin strand that constitutes by the fibre bundle that has flooded resin in the fibre bundle, and collect this fiber-reinforced resin strand from crosshead, after cooling, make this fiber-reinforced resin strand twisted
It is characterized in that, make the fiber-reinforced resin strand collected from above-mentioned crosshead by storing the bosh of cooling water, and in this bosh towards above-mentioned fiber-reinforced resin strand water spray, thereby cool off this fiber-reinforced resin strand.
CNA2007800154991A 2006-04-28 2007-04-18 Apparatus for production of fiber-reinforced resin strand Pending CN101432107A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2006125962A JP4038521B2 (en) 2006-04-28 2006-04-28 Long fiber reinforced resin strand production equipment
JP125962/2006 2006-04-28
JP130555/2006 2006-05-09
JP161849/2006 2006-06-12

Publications (1)

Publication Number Publication Date
CN101432107A true CN101432107A (en) 2009-05-13

Family

ID=38766629

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2007800154991A Pending CN101432107A (en) 2006-04-28 2007-04-18 Apparatus for production of fiber-reinforced resin strand

Country Status (2)

Country Link
JP (1) JP4038521B2 (en)
CN (1) CN101432107A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103282565A (en) * 2011-01-04 2013-09-04 株式会社神户制钢所 Fiber-reinforced strand, method of manufacturing a fiber-reinforced strand
CN103429410A (en) * 2011-03-23 2013-12-04 株式会社神户制钢所 Production method and production device for long fiber-reinforced resin strand
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
CN108068230A (en) * 2016-11-07 2018-05-25 现代自动车株式会社 Resin infusion device and manufacture the method for resin impregnating reinforcing fiber with it
CN109457337A (en) * 2019-01-04 2019-03-12 徐州优元防静电设备有限公司 A kind of electrostatic equipment
CN110370593A (en) * 2019-07-22 2019-10-25 内蒙古工业大学 A kind of thermoplastic continuous fibers composite material 3D printing consumptive material equipment and preparation method thereof
CN113211678A (en) * 2020-02-05 2021-08-06 株式会社神户制钢所 Stranded wire and shaped article
CN115652501A (en) * 2022-11-09 2023-01-31 广州汉德新材料股份有限公司 Glass fiber coating fiber cloth and manufacturing method and application thereof

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5862109B2 (en) * 2011-08-19 2016-02-16 国立大学法人山口大学 Method and apparatus for producing natural fiber reinforced resin strand
US8790777B2 (en) * 2012-04-19 2014-07-29 The Boeing Company Composite articles having fibers with longitudinally-varying geometry

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103282565A (en) * 2011-01-04 2013-09-04 株式会社神户制钢所 Fiber-reinforced strand, method of manufacturing a fiber-reinforced strand
CN103282565B (en) * 2011-01-04 2016-03-16 株式会社神户制钢所 The manufacture method of fiber reinforcement strand and fiber reinforcement strand
CN103429410A (en) * 2011-03-23 2013-12-04 株式会社神户制钢所 Production method and production device for long fiber-reinforced resin strand
CN103429410B (en) * 2011-03-23 2015-07-29 株式会社神户制钢所 The manufacture method of continuous fiber reinforced resin wire harness and manufacturing installation
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
CN108068230A (en) * 2016-11-07 2018-05-25 现代自动车株式会社 Resin infusion device and manufacture the method for resin impregnating reinforcing fiber with it
CN109457337A (en) * 2019-01-04 2019-03-12 徐州优元防静电设备有限公司 A kind of electrostatic equipment
CN110370593A (en) * 2019-07-22 2019-10-25 内蒙古工业大学 A kind of thermoplastic continuous fibers composite material 3D printing consumptive material equipment and preparation method thereof
CN113211678A (en) * 2020-02-05 2021-08-06 株式会社神户制钢所 Stranded wire and shaped article
CN115652501A (en) * 2022-11-09 2023-01-31 广州汉德新材料股份有限公司 Glass fiber coating fiber cloth and manufacturing method and application thereof

Also Published As

Publication number Publication date
JP2007296721A (en) 2007-11-15
JP4038521B2 (en) 2008-01-30

Similar Documents

Publication Publication Date Title
CN101432107A (en) Apparatus for production of fiber-reinforced resin strand
KR101028962B1 (en) Apparatus for production of fiber reinforced resin strand
CN102016138B (en) Method for melt-spinning, drawing, and winding up a multifilament, and apparatus for carrying out said method
CN205665442U (en) Layer -stranding cable's integrative apparatus for producing of stranding sheath
CN105014903A (en) Full-automatic production line for filaments
CN102515504B (en) Multi-bushing plate merging wiredrawing technology and multi-bushing plate wiredrawing device employing it
CN1074472C (en) Method and apparatus of heating synthetic silk
JP3584065B2 (en) Manufacturing apparatus and manufacturing method for long fiber reinforced resin structure
CN102107536B (en) Forming equipment and forming method for macrofiber-reinforced thermoplastic resin
CN201610335U (en) Fiber conveying device
KR101198256B1 (en) Fiber spreading device and manufacturing system of continuous fiber reinforced thermoplastic composites having the same
CN108099225A (en) A kind of alternating pressure melt impregnation equipment and melt impregnation method
CN205650612U (en) Copper wire unwrapping wire wire drawing device
US8973520B2 (en) Coating machine for coating fiber yarns
JP3997252B1 (en) Long fiber reinforced resin strand production equipment
CN202021821U (en) Long-fiber enhanced thermoplastic resin forming equipment
CN106694602B (en) Stainless steel wire process equipment
CN216914916U (en) Pultrusion workpiece production equipment and pultrusion workpiece
EP3388166A1 (en) System and method for continuous casting
CN203559205U (en) Multi-fiber-blended composite filament drawing winding device
KR101728013B1 (en) A Winding Device
KR100831852B1 (en) Manufacture apparatus of synthetic resin flat yarn
CN219151178U (en) Diamond wire bus wire drawing machine
CN202447557U (en) One-step molding mechanism for torsion spring
CA3057381C (en) System and method for continuous casting

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C12 Rejection of a patent application after its publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20090513