Be used to handle apparatus and method and snowflake yarn, migration and the false twisted yarn of filament yarn
Technical field
The present invention relates to a kind ofly by means of a device with nozzle processed filament yarn of yarn path, the nozzle that designs of nozzles become to be opened wide and separated has yarn guiding trough and enters medium input channel in the yarn path; And relating to a kind ofly by means of a method with nozzle processed filament yarn of yarn path, this designs of nozzles becomes the nozzle that opens wide separately, has empty yarn guiding trough and enters medium input channel in the yarn path.The invention still further relates to a kind of snowflake yarn, a kind of migration yarn and a kind of false twisted yarn.
Background technology
Filament yarn will carry out air-treatment after spinning process in spinning process, so that the joint that improves single filament yarn is to be used for the processing of yarn.At this following two kinds of different effects are arranged:
-be used to make the migration yarn migration and
-be used to make the eddy current of snowflake yarn.
The purpose of eddy current at first is to improve to engage, and also is used to improve operational reliability, for example when filament yarn coiling and unwinding.Eddy current vertically or a little obliquely roughly is blown into blowing when handling at the center of yarn path.Can be for migration referring to International Patent Application WO 00/52240.The purpose of migration is to give yarn enough good joint in the yarn treatment that follows hard on, so that direct effect subsequently can be carried out by interference-free.Make filament yarn in the yarn compound, just intersection be arranged slightly with migration, thereby do not have single filament yarn to hold up from yarn.Until not long ago all is to implement migration by means of the vortex deformation nozzle of routine.For a kind of eddy current, carry out work, thereby produce tieing hardly with the worst possible service condition.Migration and eddy current are that the single filament yarn that improves yarn engages to be used for yarn processing and to improve coiling and unwinding with many commutations as sole purpose.Purpose is to avoid operation troubles and Yarn break, and does not produce the effect of defective on the fabric of casting off owing to tieing.
In spinning process, used the above-mentioned processed that adopts single or multiple nozzle.When eddy current, usually use nozzle as twin-jet nozzle.The quantity of nozzle is equivalent to the quantity of yarn runner when multiple nozzle.This quantity can reach 6 to 12,16,20, and recently even reach 24.Next target is to be doubled to for example 50 yarn runners.
A kind of interesting design of nozzle body has been described in US-PS 5 157 819.Nozzle body is made up of more substantial flat, and they can be clamped together by being threaded.The yarn path constitutes by means of the through hole that vertically passes through each plate.Accurately coupling is consistent mutually in each plate for through hole, thereby passes the yarn path that all plates form a cylindrical sealing under assembled state.These plates can alternately have and not have air input passage ground to constitute and clamp with two end plates as plate is folded.This is meant a kind of valve nozzles that does not have yarn guiding trough.Purpose according to the solution of US-PS 5 157 819 is the air input passage of most as far as possible amounts, has wherein stipulated not only to make the snowflake yarn but also make false twisted yarn with same designs of nozzles scheme.
JP-200375802 has pointed out a kind of air nozzle that separates that opens wide that is used to make the snowflake yarn.At a medium input element nozzle body separately is housed in other words on the air input element, it is made up of a nozzle body and deflection plate or cover plate.Two parts are tightened on the air input element individually.Nozzle body has an air input passage and a transverse holes, is used for machining medium is blasted in the yarn path.For the yarn path, still all be provided with the yarn path profile in the cover plate in the nozzle body.Just under assembled state, between nozzle body and cover plate, form the yarn path.Be provided with the gap between two individualities, it constitutes yarn guiding trough in that side that deviates from the air input element.The nozzle body that just has air input passage seals with respect to the air input element with lip ring.Nozzle is a kind of typical vortex deformation nozzle, and the layout with vertical in the middle of it has roughly makes air input yarn path.Must distinguish doubly when dual or multiple nozzle or multiple ground not only uses nozzle body but also use cover plate, this a kind of narrow spacing with respect to the yarn runner is a kind of shortcoming.
Warping apparatus is a kind of special circumstances of using vortex deformation.Can handle 500 to 2000 parallel yarn runners simultaneously with very narrow spacing at this.EP 0 216 951 has pointed out that a kind of so special device is used to make the multifilament vortex deformation.Vortex deformation occurs on two planes, promptly goes up on plane and the lower plane for one.The vortex deformation passage is arranged on the minimum space for the yarn runner of respective numbers, thereby warp thread bundle (Schar) can be imported with very narrow spacing.The device that is used for vortex deformation has the groove that some are arranged side by side mutually.These grooves constitute between the distancing element of dish and nozzle rod.Each dish has the ring-type moulding, compressed air is fed and flows to the vortex of each design grooving by the transverse holes of correspondence.Yarn and bottom land have spacing ground to transport by this device compressed-air actuated the influence in the position.Coil the thread-carrier that the derivation side is arranged again of existing importing side.Along with many dishes and intermediary element end face to end face assemble and just form so-called nozzle rod.This scheme is saved the position especially.The order of magnitude that spaces of yarn runner is 4mm.For warp thread is not ejected, in the position, outside of groove, carry out wire drawing in treatment trough.Dish is especially made by oxide ceramic by pottery.Therefore can obtain high service life, wherein ceramic disk is made with the method for forming and then roasting.Make many ceramic disks stably remain on the nozzle rod that forms on the scaffold from supporting with intermediate plate by means of fishbolt.Scheme according to EP 0 216 951 has stood test well in the warping apparatus field.Yet the scheme thinking of being somebody's turn to do the nozzle rod of being made up of dish cannot be applied in the described vortex deformation scope of beginning in the spinning equipment field.Parallel amount of yarn much less to be processed in the spinning equipment field, but change then constantly increase by present trend.Similarly narrow the spacing at the parallel yarn in spinning process field is popular.
A kind of diverse finished product that is used to improve that is to say that the solution of the textile quality of fabric can realize with the generation false twisting.Here utilized the torsion of air blast, so as by directly preposition heat treatment by the heating and cooling of yarn for good and all being changed the molecular structure of single filament yarn, thereby on yarn, produce a kind of significant bulkiness.Example as false twisting can be referring to EP-PS 0 532 458.A kind of bulk textile property is provided for filament yarn and the fabric made from false twisting.
Narrow the spacing of a plurality of yarns that run parallel all proposed such requirement more and more in various yarn treatment.In two kinds of described solutions of the prior art of EP-PS 0 532 458 and US-PS 5 157 819, between two parallel yarn runners, relatively large distance is arranged.In according to the solution of WO00/52240 at least at two yarn runners after apart from being about 8 to 10mm.Have only EP 0216958 to allow to space and reach about 4mm.
By former embodiment by drawing two kinds of basic actual conditions in the prior art solutions:
Realized three kinds of different burner schemes:
1. nozzle has a lasting yarn guiding trough that opens wide.These nozzles are called unlimited nozzle, for example as in EP 0 532 458 and WO03/029539 (Fig. 8).
2. pass the nozzle that a plate can arrive a unlimited guide position and a run location of closing.These nozzles are called unlimited-shut-off nozzle, for example as EP 0 216 951 and WO03/029539 (Fig. 8 a) in.
3. the nozzle of closing: yarn generally must be introduced into by the yarn path with an air cannon that designs for this reason herein, for example as in US-PS 5 157 819.
Second kind of actual conditions is: realized diverse nozzle arrangements for every kind of distinctive Yarn processing method.Therefore can mention:
-remove to turn round nozzle, be used for false twisted yarn is replenished processing,
-vortex deformation nozzle, be used to make the snowflake yarn and
-migration nozzle is used to make the migration yarn.
Summary of the invention
Task of the present invention is to seek solution to develop inexpensive nozzle for yarn treatment in the scope of the nozzle that opens wide; Also be used for spacing in the scope at a few millimeter between two or more parallel yarn runners, wherein this scheme thinking especially also should be applied to single nozzle or twin-jet nozzle.
Be characterised in that according to device of the present invention: nozzle is made of injector, and they each have a spinnerets side and the cover plate side can be assembled on the medium input element and form a yarn path between two adjacent injector.
Be characterised in that according to method of the present invention: the yarn that is used to handle two identical, constitute guiding between the plate of a yarn path and mistake together, wherein these plates reciprocally and with respect to the medium input face all seal.
According to snowflake yarn of the present invention or migration yarn, especially, it is characterized in that as the micro filament yarn: for handle its two identical, constitute guiding between the plate of a yarn path together and cross and produce a kind of snowflake yarn or migration yarn.
According to being characterized as of false twisted yarn of the present invention: for handle make it two identical, constitute guiding between the plate of a yarn path together and cross and carried out false twisting.
This new solution is brought various advantage.The moulding of the moulding of plate, especially ceramic wafer is limited to real Core Feature, just:
-both sides all enter the yarn path side in each plate,
-yarn guiding trough and
-be used for the single air input passage of the yarn path in the plate.
The injector of a nozzle is identical thus.Each injector has spinnerets and cover plate self two kinds of function of deflection plate in other words.Cover plate is separately for example then cancelled according to JP-20-0375802.This has allowed for a plurality of yarn runners narrower spacing arranged in principle.Plate can be used very little appearance and size, and for example 1cm is to 2cm (1cm auf 2cm), thickness 4mm or littler making.The shape of simple plate is made for it, just made things convenient for widely during particularly with pottery because this simple shape can with cheapness more than injection moulding process make.At least in enormous quantities and therefore the blank that is used for plate can more inexpensively be made.Because the plate of a nozzle can similarly be made, these plates can be when single nozzle Rotate 180 ° pack into, thereby can be doubled its service life with original yarn path profile still.Along with the problem of making has been simplified in the microminiaturization of plate greatly.This new solution can be made plate with injection moulding as also will illustrating, this method ratio is as wanting economy to have more advantages by the pressing of EP 0216951.Second main advantages is: the yarn path, this is designed to simple groove in EP 0 216 951, then can be complementary with distinctive processing according to this new invention.EP 0 216 951 described dishes have following important advantage: form two yarn runners between two dishes.Shortcoming according to EP 0 216 951 described solutions then is: owing to side by side thread-carrier and air inlet duct are integrated in the dish that has just formed similar gesture and facial expression size in the plate, this dish can only be made with drawing method.
New plate scheme can be used in the various processing method, for example the vortex deformation on filament yarn, migration, false twisting and other deformation process (Texturen).Can be applied in the reed equipment as multiple nozzle, in the weaving texturing machine as list or twin-jet nozzle, in addition but also be used in the stretcher and be used in the false twist texturized equipment.
Under each special cases, always use identical injector for single injector, twin-jet nozzle or multiple nozzle in any case.And preferably also respectively there is gas distribution channel the existing spinnerets side of each injector as same cover plate side.Each side can be free approaching for processing.This has very big advantage: these two yarn path profiles easily are arranged in each plate and can design individually and for example also process and are used for the nozzle side and are used for the deflection plate face or the cover plate side.For the vortex deformation nozzle, be referred to as spinnerets and deflection plate in academia.Spinnerets has the main air that cross-drilled hole is used for two eddy current at least.Deflection plate has opposed side, and handle air and collide this moment.For going to turn round its target of nozzle is to produce a strong rotational flow with air, that is to say a kind of false twisting for yarn.Here when a kind of nozzle that separates, must replace deflection plate and use a kind of cover plate.Because new solution can comprise two kinds of applicable cases, therefore selected notion " injector ".Each injector respectively has half only could realize its function after assembling for these two kinds of designs.
New solution allows many particularly advantageous designs, can be referring to claim 2 to 21 and 23 to 29 to this.Especially preferably the yarn path is designed to semicircle in the spinnerets side, and is flat in the cover plate side.Because the yarn path enters in the plate, influence at random can seldom be arranged to the shape difference of yarn path.For air input passage equally also like this.Particularly preferably make these plates be designed to spinnerets on one side, another side is designed to deflection plate or cover plate and corresponding to for example yarn path of half.
The microminiaturization of plate can make plate be designed to the flat ceramic wafer made from injection moulding, and they can respectively clamp an assembly by two end plates.The injection moulding beguine wants economy to have more advantages according to the pressing of EP 0 216 951 proposals.Whole assembly can be fixed on a inside and be provided with on the supporting base of air intake passage, and the air input passage of each plate all can link to each other with air intake passage.Supporting base can be made by metal or plastics.According to new invention, this expensive relatively pottery only is used in the place that required functional requirement has the highest quality and precision.Having at least one cross-drilled hole according to each plate of another kind of design is used to make medium to be input to make on the spinnerets side air respectively separately in the input yarn path.Each plate in described at least two injector preferably has a medium input channel, and the corresponding connecting hole that it can pass through the medium input element individually activates, thereby avoids by flowing away from untapped air input hole.Each plate at least two injector of nozzle is being identical aspect the profile of yarn path and a spinnerets side and the yarn path profile cover plate side is respectively being arranged that it just forms a yarn path at least under assembled state.Because have only two plates just to form a yarn path together, so when each paired two or more plate, always form two lateral surfaces that do not utilize.This has main advantages in a kind of simple nozzle: two boards can Rotate 180 ° be packed into after effective yarn path profile strong wear, thereby the durability of nozzle is doubled.
Injector is preferably designed to ceramic wafer or has a kind of face coat of high abrasion of correspondence at least in the position of yarn path profile.Described at least two identical injector have a thickness that reduces yarn guiding trough with respect to air input position in the lead-in wire position, and all there is a flat sealing surface on both sides in air input position.Sealing surface has a kind of very high surface quality, so these sealing surfaces compress along with it and do not have special sealing and just close airtightly.Also can when assembling, plate guarantee the high precision of yarn path in this way.Preferably make single medium input channel roughly introduce the yarn path,, be provided with at least two through holes perpendicular to flat sealing surface wherein in both sides at the center, be used for by means of sliding bar make plate in other words the yarn path profile of plate accurately locate.If through hole is inequality, these through holes are used to simultaneously also prevent that dress is anti-so.
According to another particularly advantageous design design, each plate is preferably in the flat sealing surface position in the side has the clamping breach, is used to make all plates closely to be pressed on the medium input element.If between plate and medium input element, add and be provided with potted component, be favourable at the medium input side so.
This new solution allows the many arbitrarily injector of assembling to be used for corresponding many yarn runners.The single injector that only is used for a yarn runner is made up of two injector.A dual nozzle that is used for two yarn runners is made up of three injector.In order to handle two or more yarn runners, the quantity of plate is equivalent to quantity+1 of yarn runner.
According to first kind of application that is used to make the snowflake yarn as the vortex deformation nozzle, the cross-drilled hole that is used for medium input is roughly on central vertical ground or there is translocation ground to feed in the yarn path slightly.For having the thin snowflake yarn of height rule tieing, manufacturing fully specifically in the entry site in the yarn treatment passage, forms a blast channel expansion in the air blast input channel, be used to form an air twisting chamber, be used for two opposite stabilizing vortexs.
When the false twisting, the cross-drilled hole that is used for input media tangentially feeds in the yarn path according to second kind of applicable cases.Corresponding device is designed to turn round nozzle.
Plate all is designed to flat board, and both sides all have flat sealing surface, and they have two through holes in the smooth seal face position.By means of through hole plate is individually shifted onto on the sliding bar and to be formed a nozzle block, mutually location and be strained to a nozzle block on the sliding bar by means of being threaded in accurately perpendicular to flat sealing surface.Both sides can respectively be provided with a stable end plate on nozzle block, make plate holder that pottery makes tightly by this end plate.The medium input element can also have a supporting base, can closely fix each injector of nozzle block by clamping breach on this supporting base.Supporting base or end plate can be provided with a color coding, thereby according to packed into the as can be known nozzle of which kind of type of color relation.Be provided with in nozzle block is fixed on the medium input seat of air supply channel, this has air input passage to be activated to be connected with this air supply channel.If refer to a kind of multiple nozzle, the multiple nozzle of so this plate with respective numbers as nozzle sets in other words nozzle block link to each other with a nozzle carrier, this nozzle carrier is provided with a thread-carrier.Each is fixed on the plate that can clamp on the supporting base as assembly with two end plates, and its middle yarn guider is arranged in the thread-carrier support that is fixed on the nozzle carrier and is preferably designed to reed.According to another preferred design of method, these plates connect into a nozzle block by sliding bar and nozzle block are fixed on the medium input element by seal by clamping cam.In order to ensure the accurate location of ceramic wafer, make ceramic wafer by sliding bar guiding and be merged into a nozzle block with respect to the yarn path.Nozzle block is fixed to one airtightly and preferably is provided with on the color-coded supporting base with the input of common air.
Another kind of particularly advantageous design according to method, be used for making the snowflake yarn by level and smooth filament yarn and modified continuous filament yarn (Texturfilamentgarn), the main aperture with a centrally aligned yarn path axis in the nozzle yarn path of the vortex deformation of a perforation blasts main air and becomes the via hole of a distance to blast secondary wind with main aperture with at least one.Main air is vertically and have only little translocation or be input in the yarn path between the little effect of yarn transporting direction, and secondary wind favours the yarn path axis by at least one and via hole that be different from the main air sensing is imported, and this via hole helps eddy current to flow.
Design design according to another kind is used to make the thin snowflake yarn with height tieing systematicness blasts air blast by means of the air nozzle with a yarn treatment passage transverse to the yarn treatment passage.Air blast is used to produce tieing on the yarn transporting direction and in face of a kind of pair of eddy current of each self-forming of yarn transporting direction.Air blast in the position that enters the yarn treatment passage, one in air swirl chamber short on the longitudinal direction of yarn path, forms two strong stable eddy current that are not subjected to the interference of filament yarn wire harness.The cross-drilled hole that is used for the spinnerets side of air input preferably is disposed generally on vertical centre of yarn path, transverse to or favour the axis of the yarn path that is used for nozzle slightly, these nozzles are used for the vortex deformation or the migration of yarn.The transverse holes arranged tangential is being used in the yarn path of nozzle, and this yarn path is given for the false twisting of yarn.
Preferably after a distance and the yarn path outlet each yarn runner all is provided with thread-carrier on both sides on the supporting base with before yarn path inlet.Supporting base is born two kinds of miscellaneous functions: yarn guide and input air and with air distribution on each plate.This device is designed to respectively have the single injector or the dual nozzle of two end plates, and they can clamp by clamp mechanism.If multiple nozzle makes these designs of nozzles that are used for the plate with respective amount of regulation yarn runner become nozzle sets, it has an air supply channel and also have a thread-carrier in supporting base.The plate that has two end plates separately that all can be clamped is fixed on the supporting base as assembly, is provided with air supply channel in supporting base, and its middle yarn guider is arranged on the thread-carrier support that is fixed on the supporting base.
Description of drawings
It is following that the present invention will be described with some other details according to some embodiment.Be depicted as:
Fig. 1 a: injector or little spinnerets/minor flaps 1 designed according to this invention are roughly the twice of actual size;
The enlarged drawing of the cross section A-A of Fig. 1 b: Fig. 1;
Fig. 2: the assembly with a plurality of injector and 8 yarn runners is perspective view above, is the cross section A-A of last figure below;
The diagrammatic side view of Fig. 3: Fig. 2 (on) and the section B-B (descending) of last figure;
Fig. 4: one-jet perspective view (upper left), vertical view (lower-left), side view (upper right) and cross section A-A;
Fig. 5: the twin-jet nozzle that is similar to view shown in Figure 4;
Fig. 6 a: having the whole nozzle block of 24 yarn runners, is a view above, is vertical view below;
Fig. 6 b: different section B-B are to F-F;
Fig. 6 c: three kinds of different views of whole nozzle block;
Fig. 7 a and 7b: have a solution that is used for the special clamping device of nozzle block;
Fig. 8 and 9a: a kind of particularly advantageous design that forms a kind of interconnection inlet position of air swirl chamber;
Fig. 9 b to 9d: tieing different in the yarn are constructed;
Figure 10 a to 10c: have the main air that is used for treatment media and a solution of secondary wind, wherein Figure 10 b and 10c have represented the special design of interconnection;
Figure 11 a to 11d: new nozzle is as going to turn round the false twisting that nozzle is used for yarn; Having multi-form tangential air blasts and yarn guiding trough;
Figure 12 and 13: the example of in the POY processing range, using new solution;
Figure 14: four examples that in the FDY processing range, use new departure.
The specific embodiment
Fig. 1 and 1a have represented an injector 1, and it is cover plate and spinnerets simultaneously, have corresponding half yarn path 17.Cover plate side 2 is represented in the front, and spinnerets side 3 is represented at the back side, respectively has half of yarn path 17.Half of yarn path 4 enters 1 li of injector with deflection plate 5 on 2 in front.At the back side of spinnerets side be the yarn path half 6.In Fig. 1 a and Fig. 2 (descending), can see an air input passage 8 by cutaway view.Cross-drilled hole 9 of air input passage 8 usefulness is incorporated into half 6 li of yarn path with spinnerets 7.Injector 1 has two through holes 10 and 10 ' and is used for clamping plate 1.As seen from Figure 3, per two injector 1 end faces are closely reclining mutually to end face ground.Corresponding sealing surface part 11 usefulness dimensional parameters h and L mark, and wherein L is yarn path length or perhaps by half (L/2) of yarn path shown in Figure 2 length simultaneously.Last area portions 12 usefulness physical dimension X and L mark, and this part is with respect to sealing surface part 11 indentation sizes a little Z.Be an inclined plane 13 on area portions 12, it makes easier 17 li of the yarn paths that are incorporated into of yarn.One of injector 1 is characterised in that especially: these have above plate a guide section Ef, in its lower section be a section GK of yarn path portion and below a sealing section DF is arranged.Sealing section DF has 11,11 ' and lower support surface 7 of two sealing surfaces.Bearing-surface 7 must be with respect to supporting base 24 sealings, as using Reference numeral 7 ' mark among Fig. 2.Hole 10 and 10 ' is preferably different sizes, so that injector 1 is correctly packed into by the sliding bar 18 of correspondence.
As seen, forming a yarn guiding trough 14 under the confined state on the spinnerets side and being arranged in of the geometry on the cover plate side by the area portions of correspondence by Fig. 2 and 3.New solution has a kind of little simple relatively plate that is shaped, and it can be used as ceramic member economy and advantageously make with injection moulding as above-cited.A plurality of ceramic wafers respectively are assembled into a nozzle block with an end plate 15 and 16 in Fig. 2 and 3, are used for eight yarn runners.All plates all by pinching screw in other words sliding bar 18 clamp into an assembly 20, screw sliding bar in other words all passes hole 10,10 '.Each injector 1 has an air input passage 8, and (Fig. 1 a), it opens wide downwards.Represent the transverse profile of assembly 20 with size H, it is greater or lesser corresponding to thickness " d " according to the quantity of plate 1.Fig. 2 has represented as the whole device that is used for the nozzle sets 25 of spinning equipment.The yarn runner generally vertically from the top down, as with arrow 21 indication.Fig. 2 expresses (as among Fig. 3) eight yarn runners, and wherein the Reference numeral of single yarn is 22.Assembly 20 is tightened on the supporting base 24 airtightly by trip bolt 23.Supporting base 24 has an air supply channel 26, has been supplied to compressed air air blast in other words from each air input passage 8 here.The approaching side of nozzle sets marks with " output " with " entering ", outlet side.At approaching side still is that outlet side all has a thread-carrier beam 27, and it is fixed on the supporting base 24 by screw 28.Be provided with the thread-carrier with tooth 29 31 of reed shape structure corresponding to the quantity thread-carrier beam 27 of yarn runner 21.In 30 li yarn side guiding of tooth intermediate cavity.Aim at the bottom of the yarn path at the bottom of the tooth.No matter thread-carrier beam 27 still be supporting base 24 can be by aluminium or inexpensive plastics manufacturing.The thread-carrier reed is preferably made by pottery, thereby makes wear-out part have maximum service life.
Fig. 4 represents that new departure is used as single injector.The yarn path is made up of two injector 1.Shown in Figure 4ly just be designed for a yarn runner.Is identical from this one-jet design of scheme thinking with the multiple nozzle with a supporting base 24.Fig. 4 is upper left to have represented to be used for an one-jet complete assemblies, has two injector 1 that have a supporting base 24 and a nozzle carrier 19.
Fig. 5 has represented a kind of twin-jet nozzle or dual nozzle, has three injector 1, and upper left is perspective view, and the lower-left is a vertical view, and upper right is side view, and the bottom right is a cross section A-A.Because each plate is identical, therefore concerning twin-jet nozzle, need three injector.
Fig. 6 a, 6b and 6c have represented a kind of very favourable organization plan of another kind that is used for the multiple nozzle of 24 yarn runners.This scheme is suitable for basically more than 2 yarn runners.Last figure has represented a nozzle block 25 with 25 injector 1, and they combine by two sliding bars 18 and clamp mutually with big power hermetically after packing into.Each injector both sides has the breach 30 of clamping.By two grip rails 31 each injector is clamped airtightly on a seal 32.Make a plurality of pinching screws 33 overcome compression spring 34 for this reason on both sides and clamp, as shown in Fig. 6 b.Fig. 6 c represents whole nozzle assembly 20.Nozzle block 25 is absolute construction unit, and it uses and be fixed on the supporting base 24 when assembling.Subsequently supporting base 24 is tightened on the nozzle carrier 19 airtightly together with nozzle block 25.In the design that is fit to, nozzle block 25 at first can be pushed on the sliding bar in a side, fall then and be fixed on the supporting base.
Fig. 7 a and 7b have represented a kind of favourable embodiment, and wherein nozzle block 25 is by 35 tensions of a strand tensile member.Accurately being directed at of injector here by cooperating sleeve 36 to guarantee.Fig. 7 b has represented a nozzle block as Fig. 6 b, it has supporting base 24, and last figure is from two ipsilaterals not, and figure below is then seen the contact-making surface 37 with relative nozzle carrier 19 from below.Reference numeral 38 has been represented a kind of flexible seal.
Fig. 8 and 9a have represented a kind of particularly advantageous improvement project.Whole contents can be referring to unpub Swiss Patent application Nr.00482/05 (2005.3.20) still.Yarn treatment passage 17 is subsidiary here an air swirl chamber 41, it be the air blast input channel in other words transverse holes 9 directly extend of 17 li in yarn treatment passage.Yarn treatment passage 17 becomes hemispherical expansion on the position of air blast input channel 9.Therefore produced additional eddy current.Hemispherical expansion allows to form a kind of stable eddy current, and does not influence the unsettled eddy motion in the part of being right after at yarn treatment passage 17.Stable eddy current directly becomes a kind of unsettled eddy current.Air blast is being transformed into two strong eddy current stable, that not disturbed by the filament yarn wire harness at one in the entry site that enters the yarn treatment passage in air swirl chamber short on the longitudinal direction of yarn path.Produced a position with weak point of stabilizing vortex in air swirl chamber, then this eddy current is still all closelyed follow an alternation vortex in contrast to the yarn transporting direction at the yarn transporting direction.Blast pressure adopts 0.5 to 1.5 crust when processing micro filament yarn, be used to make soft tieing, they continue to add man-hour can be unclamped again, perhaps use blast pressure surpass 1.5 the crust, be used to make hard tieing, they are not unclamped when continuing to handle.Can handle in this way less than 10 to 15dpf, preferably less than the fine yarn of 2dpf.Air swirl chamber be designed at least approx about axis, yarn path symmetry and both sides stretch out exceed the side the yarn path wall less than 0.5mm.Air swirl chamber preferably stretches out the air blast input channel less than 0.5mm on the longitudinal direction of yarn path.Fig. 8 and 9a have respectively represented a kind of theoretical fluid result calculated.In Fig. 8, can clearly see air blast input BL from bottom to top.Last plane represents that with E it has represented the impingement area of air blast stream BL on deflection plate.Form air swirl chamber by these two little hemispherical vacancies 42.Can obviously see these two eddy current 43 in Fig. 8, they form a kind of very stable flow profile at one in less than 1 to 2mm scope in a longitudinal direction.Can see in Fig. 8 according to same computation model (not having yarn) has stable eddy current at the center, and top is two two eddy current 44 in the drawings.Fig. 9 a is the figure of two kinds of flow profile of Succinct representation.Just a large amount of test recently showed already, and the understanding that tieing is formed is very incomplete.In fact tieing formation is not to be formed by two stable two eddy current simply.The basic prerequisite that tieing forms is the following fact:
A) in the yarn treatment passage, produce a kind of pair of eddy current (Fig. 1 a and 1c) with air blast stream BL.
B) when a filament yarn 22 enters 17 li in yarn treatment passage, two eddy current are just disturbed fully.When entering, within several milliseconds, destroyed by yarn stable two eddy current.Half lining at a yarn treatment passage produces a kind of one-sided eddy current 44
x, and eddy current 44
xThen destroyed.Consequence is: all filament yarns are forced to the right in 3 li in yarn treatment passage.But all filament yarns collect in the right side and have just destroyed two eddy current immediately, thereby almost do not have lingeringly to occur in the left side eddy current 44 of a corresponding size
xThis oscillating motion is a kind of completely unstable permanent state when having air blast and filament yarn and is the secret that generates tieing after all.
Among Fig. 9 b last figure represented smooth, just do not have a yarn 2 of vortex deformation.Represented the one filament yarn with straight dotted line.The yarn of a kind of soft vortex deformation of second figure expression.Be typically short tieing K at this, wherein tieing is represented with thin straight line.The 3rd figure represented tieing K hard, long relatively between the open position of vortex deformation.Hard tieing is represented with thicker lines.A kind of typical snowflake yarn of the 4th figure expression prior art has very irregular tieing.
Fig. 9 c represents to have some examples of irregular generation tieing.Fig. 9 d is the comparison diagram of hard, the soft junction head that can make with new invention.Fig. 9 d has represented to use the compressed-air actuated typical affiliated position of 1.5 to 3 crust or 0.5 to 1.5 crust.Require with scleroma head or soft junction head according to market situation.
According to new scheme proposals input main air (PL) and the secondary wind (SL) shown in Figure 10 a.Because compressed air input in this example tilts at transporting direction a little, therefore on the direction of yarn path outlet Ak2, produce stronger eddy current.This point can be found out by bigger line density in the outlet position.Be provided with two via holes and be used for secondary wind SL in Figure 10 b and 10c, it is relatively consumingly at the transporting direction angle δ that tilts.Two via holes are arranged symmetrically in the respective edges position of yarn path, as with distance parameter Z mark.Represent as flexible program δ '.In Figure 10 a, can see three noticeable districts A, B and C.In the Ak1 of position, produce a strong a little district A, in the Ak2 of position, produce the district C of a correspondence.Fully surprisingly in main vortex V-V, form a very stable edge flow region B1 or a B2 in the both sides, yarn path.Tieing really is subjected to strong influence in this district, this and portion's section
Difference, portion's section
At first be used for the perforate of yarn.Because make the lateral edge position keep stablizing and producing a kind of strong translocation with secondary wind, so the generation of tieing, as the front had been narrated, that is to say astoundingly by all important quality criterions all to be subjected to positive influence.Figure 10 b and 10c have represented that layout is used for the main aperture 50 of secondary wind (SL) and two kinds of examples of via hole 51.
Figure 11 a to 11d has represented that new nozzle blasts and the twisting with the fingers eventually of the filament yarn of yarn guiding trough in having multi-form air as going to turn round nozzle application.In the false twist texturing device that in Figure 11 a to 11d, schematically illustrates a multiple filament yarn 22 that will carry out deformation technique is flowed to a twister 61, for example friction twisting device through one first heater 60.The yarn that leaves the distortion of twister 61 is bulk and elastomeric.The twist that is added to yarn by twister 61 has been unclamped again after twister.A moment of torsion is arranged in yarn in known false twist texturing device here, and it attempts yarn is reversed again.Just guiding is follow-up in second heater 62 of twister 61 by one in known manner aptly then for yarn, and this second heater reduces the elasticity of yarn.Be connected to one according to nozzle 63 of the present invention behind second heater 62 according to the present invention, it carries out false twisting for the yarn through heater 62 once more, that is to say on the direction of 61 li twists that produced of twister.Therefore the moment of torsion in yarn above-mentioned is reduced or virtually completely elimination 62 li of second heaters.Nozzle 63 is supplied with compressed air by compressed air line 64.Nozzle 63 has a tangential blast channel 65 that feeds 17 li of yarn paths.Figure 11 a to 11d has equally also represented a kind of single injector, but is used for producing on yarn false twisting.For false-twisted process referring to EP 0 532 458.Two plates must be designed to have tangential air intake and be used to produce false twisting.Two buttresses are according to other function Reference numeral 1 ' and 1 " expression.
Figure 12 and 13 has represented POY technology.Implement pre-vortex deformation and real vortex deformation in both cases.Figure 12 represents a kind of parallel POY/HOY-spinning equipment.In this technology, there is not guide roller.People can only adjust the yarn tension that vortex deformation is used with coiling machine speed.This scheme is applied in the Europe and the U.S. at least.Figure 13 represents a kind of POY spinning equipment with guide roller.The advantage of this POY technology is: can adjust yarn tension better.Guide roller does not heat in this technology.This scheme is used in the Asia mostly, but also uses in the Europe and the U.S..
Figure 14 a has represented a kind of FDY technology, and it adopts a kind of migration and vortex deformation.This is a standard in the FDY spinning.Modes list or two that in this technology, have two kinds of heating.Here can set yarn tension well.Figure 14 b is a kind of FDY technology (H4S or H5S), and has represented to be used for once an example of a pre-vortex deformation and a vortex deformation.This technology has cold lead dish and is used for drawing-off, and then makes Yarn relaxation with steam.Figure 14 c represents a kind of FDY method and has represented migration successively and the secondary vortex deformation.In this technology, before preparation, make yarn heating and then with cold godets-stretching with heater.Figure 14 d is a kind of FDY technology and has represented a migration and a vortex deformation, but do not use heat.Here the air with heat acted on yarn also then with cold godets-stretching before preparing.