EP1634982A1 - Buse en céramique et dispositif de frisage par boîte de bourrage d'un fil synthétique multifilamentaire - Google Patents

Buse en céramique et dispositif de frisage par boîte de bourrage d'un fil synthétique multifilamentaire Download PDF

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Publication number
EP1634982A1
EP1634982A1 EP05018450A EP05018450A EP1634982A1 EP 1634982 A1 EP1634982 A1 EP 1634982A1 EP 05018450 A EP05018450 A EP 05018450A EP 05018450 A EP05018450 A EP 05018450A EP 1634982 A1 EP1634982 A1 EP 1634982A1
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EP
European Patent Office
Prior art keywords
nozzle
ceramic
housing
channel
ceramic nozzle
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.)
Granted
Application number
EP05018450A
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German (de)
English (en)
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EP1634982B1 (fr
Inventor
Mathias STÜNDL
Patrik Buchmüller
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.)
Oerlikon Textile GmbH and Co KG
Original Assignee
Saurer GmbH and Co KG
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Filing date
Publication date
Application filed by Saurer GmbH and Co KG filed Critical Saurer GmbH and Co KG
Publication of EP1634982A1 publication Critical patent/EP1634982A1/fr
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Publication of EP1634982B1 publication Critical patent/EP1634982B1/fr
Not-in-force legal-status Critical Current
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    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/12—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes
    • D02G1/122—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes introducing the filaments in the stuffer box by means of a fluid jet
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/16—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam
    • D02G1/161—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam yarn crimping air jets

Definitions

  • the invention relates to a device for upsetting crimping of a synthetic multifilament yarn with a ceramic nozzle.
  • known devices For stuffer box crimping of a multifilament thread, known devices have a delivery nozzle and a stuffer box arranged downstream of the delivery nozzle.
  • the thread is conveyed by means of the delivery nozzle in the stuffer box, compressed to a yarn plug and thereby crimped.
  • the delivery nozzle is supplied with a conveying medium, preferably a hot gas, which conveys the thread within a thread channel to the stuffer box.
  • the thread plug Within the stuffer box, the thread plug is formed.
  • the multifilament lies in loops on the surface of the yarn plug and is compacted by the pumped medium, which can escape from the stuffer box above the yarn plug.
  • the chamber wall of the stuffer box has at the periphery a plurality of slot-shaped openings through which the fluid can escape.
  • the plug formation takes place in the stuffer box with very high uniformity.
  • the frictional forces resulting from the relative movement of the yarn plug in the stuffer box have a significant influence on the texturing process.
  • the conveying effect can be influenced or regulated.
  • that is due to the friction between the yarn plug and the chamber wall generated braking effect essentially dependent on the nature of the chamber wall.
  • EP 1 060 302 shows a device for treating yarn with a detachable screw connection.
  • a two-part constructed treatment body consists of at least one ceramic part, wherein the two parts are positioned to each other during assembly with dowel pins. The treatment body is then clamped with a screw penetrating it against a machine part.
  • the device relates to texturing nozzles which can be made relatively small.
  • EP 1 116 806 shows a known device for compression crimping. It is assumed that a texturing nozzle for the treatment of a thread-like material in a between at least two superposed, basic bodies shaped treatment channel.
  • the device further comprises at least one nozzle body for supplying a gaseous treatment medium and at least one venting part in the treatment channel.
  • the treatment channel is formed at least in some areas with a resistant material as the metallic base body.
  • various one-piece ceramic inserts are positioned in the region of the nozzle channel. It is known that the coefficient of thermal expansion is very different between ceramic and metallic material. Since the compression crimping high temperatures and temperature fluctuations occur during operation can vary greatly thermal stresses on the device for Stauchk Hurseln occur that may lead to positional shifts of the parts of the device and thus a faulty yarn plug formation.
  • Another device for Stauchk syndromeseln is for example known from WO 03/004743.
  • wear-resistant material in particular comprising a ceramic material having.
  • the provision of such a material in this area also means that the gas-permeable wall is corrosion resistant and less susceptible to contamination. In particular, deposits of preparation residues can be avoided.
  • the delivery nozzle comprises a base body and a plurality of spaced-apart guide inserts, which may advantageously be made of a ceramic material or provided with a corresponding coating. This ensures that the heavily loaded by the thread contact points and friction points are made of a wear-resistant material, so that a stable and uniform thread guidance and yarn delivery is achieved. In addition, the coefficients of friction between the thread and the contact points or friction points are considerably reduced.
  • the crimping apparatus of a synthetic multifilament yarn has a housing comprising metallic material. Furthermore, the device has formed at least one ceramic nozzle with at least two molded parts. At a Planar surface of each molded part is provided at least one recess for forming a nozzle channel. According to the invention, separate means for fixing to the housing are provided for each molded part, wherein the means comprise a positive fastening and an axial guide in a plane parallel to the plane surface:
  • housing in particular the adjacent to the ceramic nozzle or the moldings arranged component of such a device.
  • This may be a one-piece embodiment of the housing may be provided, but preferably the housing is constructed in several parts, so that each housing receptacle is in contact with only one of the two moldings.
  • the housing contacts the molded parts directly or via fastening means such as screws, pins, bolts, stop surfaces, etc.
  • fastening means such as screws, pins, bolts, stop surfaces, etc.
  • the proposed fixation uses two different methods, on the one hand a positive fastening and on the other hand a guide along an axis.
  • the form-liquid attachment ensures that close to this attachment point a relative movement between the housing and molded parts (with the exception of possibly a rotation) can take place to an insignificant extent, is preferably prevented.
  • the guide point with the axial guide to the fact that here a relative displacement of the housing relative to the molded part is allowed, so it can take place.
  • the positive fastening can be regarded as a reference point, which remains substantially unchanged during the operation of such a device, while the axial guide at least partially allows different distances to the positive fastening.
  • the ceramic molded parts are joined together by pass means, such that both the Garnzu Siliconkanal near an inlet of the ceramic nozzle and the adjoining nozzle channel in the assembled state have the highest possible precision.
  • the exact position of the two ceramic molded parts in the housing, which comprises the ceramic molded parts and is formed at least partially from metallic material, is preferably also defined with the fitting means.
  • the molding for a ceramic nozzle has a peripheral surface and a flat surface, at least two holes are provided, which extend toward the peripheral surface. At least one recess for forming a nozzle channel is provided on the plane surface.
  • the molding is made of ceramic material, preferably integrally formed. The production of the molding can be done, for example, with at least one of the production processes of pressing, sintering, grinding.
  • molded part is meant in particular one half of a ceramic nozzle, wherein the planar surface is to be regarded as the contact surface of the two molded parts.
  • peripheral surface is meant, in particular, the other regions of the surface of the molded part which are not to be assigned to the planar surface, that is to say the surface which serves to abut a further ceramic molded article.
  • the peripheral surface may have any contours, but preferably the peripheral surface is formed with substantially flat surfaces.
  • the molded part substantially has a rectangular structure, wherein one of the two largest surfaces represents the planar surface.
  • the molding may be equipped with special abutment surfaces, grooves, abutment edges, etc., to facilitate positioning relative to adjacent components.
  • At least one bore of the molded part with a rotationally asymmetric cross section is provided for the axial guidance.
  • the holes listed here allow in particular a simple measure attachment of the ceramic molding to metallic components. With a first of the two holes, the position of the molding, in particular punctiform, fixed. Now, however, a second possibility for fixing the molding must be created, which prevents free rotation around the first bore.
  • the bores in certain embodiments can be designed as so-called "blind hole” holes, so extend only from the peripheral surface to the inner areas of the molding.
  • the bores extend from the peripheral surface to the plane surface. This makes it possible to make fixation of the molding on other components of the plane surface, whereby the assembly activity is significantly simplified.
  • the at least one recess extends between two end faces of the molding and thus spaced apart the at least two holes.
  • the recess extends over the entire length of the plane surface or of the molded part and thus divides it into two halves.
  • At least one chamber is provided on the plan side with a recess towards the at least one recess, wherein the one bore with rotationally asymmetrical cross section is arranged farther away from the chamber than the other bore.
  • the chamber is advantageously also a connection between the flat surface and the peripheral surface and serves in particular the supply of the hot medium, such as steam or gas.
  • the hot medium such as steam or gas.
  • the at least two bores comprise a borehole designed as a round hole and a borehole embodied as a slot.
  • round hole is meant essentially a cylindrical configuration of the wellbore. It serves for example for receiving a dowel pin, which also has a cylindrical shape.
  • the bore preferably has a shape tolerance of less than 0.15 mm.
  • slot are meant such holes, which in each case have a semicircular shape in two opposite edge regions However, in the intermediate areas, however, have a substantially straight course. It is also possible in principle, instead of selecting semicircular end portions of other section shapes, for example, straight stop edges, oval shapes, etc.
  • the advantage of an embodiment of the second hole as a slot is that here a guide for exactly one direction is specified. As a result, the behavior of the molded part during thermal cycling can be more accurately predicted or limited.
  • the at least one recess has a center axis
  • a bore with the rotationally asymmetric cross section is designed as a slot hole having an extension axis, the center axis and the extension axis being parallel to one another.
  • the at least one ceramic nozzle is designed with two similar shaped parts, which lie with the flat surfaces so that the recesses form both mold parts together a nozzle channel with an inlet on a first end side and an outlet on a second end side.
  • the nozzle channel is preferably formed in the direction of an axis, wherein this may have varying channel cross-sections.
  • the nozzle channel has a larger channel cross-section near the outlet than in inner regions of the ceramic nozzle.
  • the recesses are designed so that the nozzle channel wall formed in equal parts by one molding each becomes.
  • the mold parts are arranged symmetrically with respect to a central axis, which corresponds in particular to the center axis, all recesses. This makes it possible that the variety of parts for the production of such ceramic nozzles can be significantly reduced, because so can always be the same moldings joined together.
  • the shaped parts of the at least one ceramic nozzle each have two chambers with recesses toward the recesses, wherein together with one chamber each of a molded part a cavity and together with a recess of a molded part, a feed channel is formed.
  • the cavity serves as a settling volume for an incoming conveying fluid, in particular a gas.
  • the connections for the supply of the conveying fluid are advantageously provided only on one side of the ceramic nozzle, the other side of the recesses can be closed by adjacent components.
  • the delivery fluid flows via the supply channels into the nozzle channel, wherein in the region of the merging of supply channels and nozzle channel advantageously a widening of the channel cross-section or the nozzle channel is provided.
  • the feed channels run at an acute angle to the nozzle channel, so that the inflowing conveying fluid already has a large velocity component in the direction of the center axis of the nozzle channel. In this way it is prevented that unwanted flow vortices are avoided in the deflection in the flow channel, which would lead to an uncontrolled delivery of the thread.
  • the form-fitting attachment each comprises a bore executed as a round hole, which extends at least partially into the molded part or in the housing, which are aligned with each other so that a dowel pin at least partially into both holes extends into it.
  • the dowel pin has a substantial in this case cylindrical shape and lies with the vast majority of its peripheral surface in the holes on the material of the molding and the housing.
  • this dowel pin extends to near the flat surface of the molding, so that it is easy to remove if necessary.
  • the axial guide comprises a hole executed as a slot in at least the molded part or the housing, which extends at least partially into the molded part or the housing, wherein a guide pin at least partially into the executed as a slot bore extends.
  • a hole executed as a slot in at least the molded part or the housing which extends at least partially into the molded part or the housing, wherein a guide pin at least partially into the executed as a slot bore extends.
  • the hole embodied as a slot has a maximum extent in the direction of an extension axis, wherein the maximum extent is at least 0.2 mm greater than a dimension of the guide pin.
  • this maximum extent is dimensioned such that at the maximum temperature which can be reached during operation, there is still a play in the range of at least 0.05 mm.
  • the maximum extent is selected with reference to the allowable displacement paths.
  • Prefers is the hole designed as a hole at maximum temperature load in use (about 300 ° C) in the direction perpendicular to the maximum extent by at least 0.01 mm greater than the dimension of the guide pin in order not to hinder the relative movement by friction.
  • At least the dowel pin or the guide pin comprises metallic material.
  • both the dowel pin and the guide pin are metallic. This ensures that they have a similar expansion behavior as the housing and thus fixed the position to the housing is invariably, a loosening of the attachment to the housing is thus avoided.
  • the housing is designed so that it presses the at least two molded parts of a ceramic nozzle with their flat surfaces sealingly against each other.
  • the plane surfaces come to lie against one another in such a way that the fluids conveyed in the ceramic nozzle can not leave the nozzle channel and / or other cavities formed with the molded parts.
  • the contact is made airtight, especially even if the prevailing overpressure operating in the nozzle channel.
  • the mold parts for forming a ceramic nozzle are advantageously not directly inseparably or detachably connected to each other, but are pressed against each other during use only with their plane surfaces.
  • the shaped parts are preferably formed as flat plates. At the same time complex and time-consuming Feinstbearbeitache the flat surfaces can be avoided in the production of moldings.
  • the channels, cavities, etc. located in the interior of the ceramic nozzle are preferably formed in equal parts in each case with the molded parts.
  • the plane surface preferably also represents a contact surface during operation, wherein the two plane surfaces abut predominantly on each other.
  • At least one ceramic nozzle is positively positioned with its outlet to a thread entry of a downstream in the direction of thread compression box.
  • a positive stop or contact is provided in the axial direction or in the direction of the nozzle or plug channel.
  • the positive connection is preferably provided by self-centering mold elements of the ceramic nozzle and the stuffer box, such as conical or conical shapes of outlet and / or thread entry. To ensure a permanent positive connection, the ceramic nozzle and stuffer box can be clamped with connection means outside the area with positive locking.
  • the thread entry comprises at least in the region of the positive contact ceramic material. This is e.g. ensures that the plug always comes into contact only with very resistant, wear-resistant material, which significantly extends the service life and ensures good yarn quality over a long period of time.
  • the outlet is formed with a nozzle tip having a first mating surface and the thread inlet having an input portion having a second mating surface, wherein the first mating surface contacts the second mating surface.
  • the first mating surfaces are preferably formed with two moldings.
  • the first and the second mating surfaces are formed, for example, in a section in the manner of a cone, so that the nozzle tip or the nozzle channel is centered during assembly of the device for Stauchkhoffseln and opens in alignment with the thread inlet.
  • the nozzle channel of the ceramic nozzle preferably passes directly into the plug channel of the stuffer box.
  • direct is meant that there is no substantial offset or gap between the two treatment channels, but an immediate transition is created.
  • an apparatus for upset crimping of a synthetic multifilament yarn which is designed with a split ceramic nozzle (as a delivery nozzle) and a downstream stuffer box.
  • the ceramic nozzle has at least one Garnzufiihrkanal and at least one Düsenauslasskanal.
  • the device is characterized in that the ceramic nozzle comprises a divided nozzle body with two mold parts, which are formed as flat plates.
  • nozzle outlet channel The area of the nozzle channel within which the filaments are treated up to the outlet is described here as "nozzle outlet channel”.
  • the "nozzle body” describes in particular two joined moldings, so that the channels are limited by these.
  • plate-shaped structure is superficially meant that these are not performed with half cylinders, but the flat surfaces in substantially flat and preferably also (nearly) opposite circumferential surfaces.
  • “Flat” are the plate-shaped moldings, especially if they have a height of less than 10 mm, preferably the height is in a range of 6.0 mm [millimeter] to 4.0 mm.
  • each of the two mold parts is installed in two housing halves, wherein superimposed flat surfaces of the molded parts form sealing surfaces.
  • the two molded parts are joined together by means of a pass agent, in particular also inserted into the housing halves.
  • pass means is meant in particular the above-described means for positive fastening and for axial guidance in a plane parallel to the plane surface.
  • the two mold parts are formed substantially symmetrical, each half having at least one Garnzu 1500kanal, at least one air supply duct and at least one Düsenauslasskanal, which are embedded in corresponding planar surfaces of the moldings, wherein the plane surfaces in the assembled state, the channels airtight limit ,
  • air supply channel is particularly described a channel through which a fluid is introduced into the Garnzu Glasskanal, which ultimately also serves to treat the filaments.
  • the mouth of the air feed channel into the nozzle channel is a delimitation of Garnzu Georgiakanal and Düsenauslasskanal.
  • two air supply channels which lead with an acute angle in the nozzle channel.
  • the two aspects of the invention individually or in combination with each other, provide significant improvements in the device with respect to the production of yarn plugs with high precision, even if significant temperature fluctuations occur in the vicinity of the delivery nozzle.
  • the embodiments of the devices for Stauchk syndromeseln a synthetic multifilament yarn on a significantly improved wear protection with respect to the thread-guiding components.
  • Figure 1 shows schematically, in perspective and in an exploded view, a ceramic molding 1 with an associated housing 22 and the necessary means for fixing the molding.
  • the ceramic molded part 1 has a peripheral surface 3, a flat surface 4 and two end surfaces 9 (which are assigned to the peripheral surface 3) as a surface.
  • For each molded part 1 at least two holes 5 are provided, each extending to a peripheral surface 3.
  • chambers 10, recesses 11 and recesses 6 are formed.
  • the arrangement of the chambers 10 and recesses 11 is symmetrical to the recess 6, wherein the chambers 10 are designed as a passage through the molded part 1.
  • the recess 6 extends along a center axis 12 between the two end faces 9, wherein in each case a chamber 10 and a recess 11 are arranged mirror-symmetrically to the center axis 12.
  • the molded part 1 has two holes 5, wherein one is designed as a round hole and has a diameter 27, while another hole 5 as (exaggerated drawn) slot has an asymmetrical cross section 8 and an extension axis 13. These two holes 5 also extend through the molded part 1, so that the fastening means can be inserted therethrough.
  • the hole 5 shown in Figure 1 at the top right, which is designed as a round hole, serves to receive the dowel pin 26 with the thickness 28, which corresponds at least to the diameter 27 of the bore 5.
  • the oblong bore shown exaggerated at the bottom left serves to receive a guide pin 29 with its dimension 31.
  • This bore 5 with the rotationally asymmetric cross section 8 has an extension 30 in the direction of the extension axis 13, which is significantly larger than the dimension 31 of the guide pin 29.
  • the dowel pin 26 and the guide pin 29 extends through the molded part 1 and is fastened in corresponding bores 5 of the housing 22 designed as a round hole.
  • the housing 22 in sections forms receptacles that (relatively loosely) come close to the peripheral surface 3 of the molded part 1 to the plant.
  • While the dowel pin 26 and the guide pin 29 provide a fixation of the molding 1 with respect to the housing 22 in a plane 25 parallel to the planar surface 4, to prevent the lifting of the molded part 1 from the housing 22 further fastening means for fixing in the Z direction, ie perpendicular to the described level 25, provided.
  • These are realized by means of metallic screws 32 which are retractable in the flat surface 4 of the molded part 1.
  • the holes required for this purpose are significantly larger than the screw shaft formed, so that these screws 32 perceive no guidance or fixation in the plane 25 parallel to the plane surface 4. Only the contact formation of the screw head with a shoulder in the bore ensures the fixation in the Z direction.
  • Figure 2 shows schematically and in perspective the joined state of a housing 22 and a molded part 1. This is in particular also half of a ceramic nozzle 2.
  • the recesses 6 then form together with the nozzle channel 7, an inlet 15 near a first end face 17 and a Outlet 16 near a second end face 18 has.
  • the nozzle channel 7 comprises a Garnzu Glasskanal 58 and a nozzle outlet channel 59, which are delimited by the mouth of the two air supply channels 62.
  • the recess 6 spaced in the illustrated embodiment, the positive fastening 23 and the axial guide 24, which ensure a fixation of the molded part 1 with respect to the housing 22 in a plane 25 parallel to planar surface 4.
  • the axial guide 24 is in turn shown with a bore 5 (shown clearly exaggerated) as a slot.
  • the bore 5 has a maximum extent 30 in the direction of the extension axis 13.
  • FIG. 3 shows a part of a device for producing a crimping thread, wherein a plurality of ceramic nozzles 22 are held next to one another in a nozzle plate 33.
  • the ceramic nozzle 2 is formed with two housing halves 60 or receptacles of a housing 22 and two molded parts 1.
  • the moldings 1 are each designed as a flat plate with a height 63 in a range of about 4.0 to 6.0 mm.
  • the moldings 1 rest against one another on their plane surface 4, thereby defining a plane 25 and a sealing surface 61 which effects an airtight limitation of the nozzle channel 7.
  • the required contact pressure is realized via the housing halves 60 of the housing 22, which do not touch each other in order to ensure a uniform contact pressure of the two molded parts 1. In the center of the ceramic nozzle 2, the nozzle channel 7 can be seen.
  • FIG. 4 shows schematically an embodiment of the device 21 according to the invention for Stauchk syndromeseln a synthetic multifilament yarn in cross section.
  • the device consists of a ceramic nozzle 2 and a stuffer box 37 downstream of the ceramic nozzle 2.
  • the ceramic nozzle 2 contains a nozzle channel 7 which forms an inlet 15 at one end and an outlet 16 at the opposite end.
  • the ceramic nozzle 2 is connected by a line 38 to a pressure source 4 (not shown here).
  • the line 38 is connected to the nozzle channel 7.
  • the entry of the hot, pressurized conveying fluid is realized by a plurality of cavities 19, so that the conveying fluid in the yarn running direction, which is indicated by the arrows, the nozzle channel 7 is supplied.
  • With the outlet 16 of the nozzle channel 7 opens into a plug channel 40 of the stuffer box 37th
  • the ceramic nozzle 2 now receives near the inlet 15 a thread 14, which is moved along the nozzle channel 7.
  • a form-liquid attachment and an axial guide are formed by correspondingly shaped bores 5.
  • the stuffer box 37 is formed by a ceramic nozzle 2 facing first portion 35 with a thread inlet 39 and a first portion 35 downstream second portion 36 with a stopper outlet 46.
  • a plug channel 40 is formed by a gas-permeable chamber wall having a friction surface 43.
  • the gas-permeable chamber wall contains a multiplicity of lamellae 44, which are annularly arranged at a small distance from one another.
  • the lamellae 44 are held by a holder 34 provided for this purpose at the upper end of the first section 35 and by a further holder 34 at the lower end of the first section 35.
  • the fins 44 and the brackets 34 are disposed within an enclosure formed with a wall 41, wherein the wall 41 is closed to the outside and is connected only through an opening 42 with a suction (not shown).
  • the lamellae 44 each have a friction surface 43.
  • the lamellae 44 are preferably made of a ceramic material, so that the friction surfaces 43 are made of a low-lube material.
  • a closed wall 41 which forms a plug channel 40.
  • the plug channel 40 in the second section 36 is made larger in diameter than the plug channel 40 inside the first portion 35 with the gas-permeable chamber wall.
  • the plug channel 40 in the second section 36 forms the plug outlet 46 at its end.
  • the illustrated in the figure 1 embodiment of the device according to the invention is shown with a threadline to illustrate the function of the device.
  • the yarn 14 is conveyed through the ceramic nozzle 2 into the nozzle channel 7 by a delivery fluid supplied via the supply channels 20.
  • the thread 14 enters via the inlet 15 in the nozzle channel 7 a.
  • the conveying fluid used is preferably hot air or a hot gas. Due to the high-speed fluid flowing the Fadem 14 is conveyed at high speed to the stuffer box 37.
  • a thread plug 45 is formed in the plug channel 40.
  • the thread 14, which consists of a plurality of filaments, is deposited on the surface of the yarn plug 45, so that the filaments form loops and bows.
  • the conveying fluid is sucked through between the fins 44 through the opening 42.
  • the thread stopper 45 forming in the stopper channel 40 bears against the friction surfaces 43 of the lamellae 44.
  • the frictional forces and the delivery pressure of the delivery fluid acting on the thread stopper 45 are substantially in equilibrium, so that the yarn end diameter inside the stopper channel 40 remains essentially the same. Since the lamellae 44 are formed of a ceramic material, the force equilibrium acting on the yarn stopper 45 is maintained essentially by keeping the pressure of the delivery fluid constant.
  • the yarn plug 45 now enters the second portion 36 of the stuffer box 37, which is formed by a closed wall 41.
  • the closed wall 41 in the second section 36 which may be formed, for example, as a tube, serves only to guide the yarn plug 45 and to a downstream, not shown, cooling device.
  • the plug channel 40 is formed larger in the region of the second portion 36 than the plug channel 40 in the region of the first portion 35, so that only slight frictional forces act on the thread plug 45 in the second section 36. Wear protection is therefore unnecessary.
  • FIG. 5 shows schematically at the top a variant of the ceramic nozzle 2 and below the stuffer box 37 with the upper part of the first section 35.
  • FIG. 5 shows the bipartite nature of the ceramic nozzle 2 with the plane surfaces 4 and the fitting means (round bore 5 and dowel pin 26 and bore with unsymmetrical cross section 8 and guide pin 29), via which in particular the two ceramic molded parts 1 are exactly parallel to the housing (not shown) ) are aligned and fixed.
  • the ceramic nozzle 2 is positively positioned with its outlet 16 to a thread inlet 39 of a downstream in the direction of thread flow 57 stuffer box 37. So that the center axes 12 of the ceramic nozzle 2 and the stuffer box 37 in the assembled state coincide and no interruption of the ceramic friction between the nozzle channel 7 and the plug channel 40 is formed, both moldings 1 on a common nozzle tip 50, which is inserted into an input section 51.
  • Such an input section 51 may be formed, for example, in a holder 34 of the stuffer box 37.
  • Corresponding first fitting surfaces 52 on the nozzle tip 50 and second fitting surfaces 53 on the input section 51 center the ceramic nozzle 2 with respect to the stuffer box 37.
  • the first and second connecting surfaces 54, 55 position the ceramic nozzle 2 exactly with respect to the stuffer box 37.
  • the nozzle channel 7 the ceramic nozzle 2 passes directly into the stopper channel 40 of the stuffer box 37, which is designed with lamellae 44 (see detail in Fig. 6).
  • the ceramic parts are highlighted in double diagonal hatching.
  • the housing 22 of the ceramic nozzle 2 is attached to the stuffer box wall.
  • special connecting means 56 such as a bayonet lock
  • the new invention proposes a ceramic nozzle for a device for crimping a synthetic multifilament yarn.
  • the ceramic nozzle 2 has a divided nozzle body, consisting of two ceramic moldings.
  • the ceramic moldings are preferably formed as two flat plates and assembled precisely over fitting. The ceramic moldings abut each other over their two planar surfaces and together form a nozzle tip, which projects into the plug channel and together delimit the entire channel with ceramic.
  • a particular advantage of each enclosed in a metal housing half flat ceramic plate is also in an optimal protection against mechanical damage.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
EP05018450A 2004-09-10 2005-08-25 Buse en céramique et dispositif de frisage par boîte de bourrage d'un fil synthétique multifilamentaire Not-in-force EP1634982B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004043773A DE102004043773A1 (de) 2004-09-10 2004-09-10 Keramikdüse und Vorrichtung zum Stauchkräuseln eines synthetischen multifilen Fadens

Publications (2)

Publication Number Publication Date
EP1634982A1 true EP1634982A1 (fr) 2006-03-15
EP1634982B1 EP1634982B1 (fr) 2008-10-01

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EP05018450A Not-in-force EP1634982B1 (fr) 2004-09-10 2005-08-25 Buse en céramique et dispositif de frisage par boîte de bourrage d'un fil synthétique multifilamentaire

Country Status (6)

Country Link
US (1) US7260875B2 (fr)
EP (1) EP1634982B1 (fr)
JP (1) JP2006077385A (fr)
CN (1) CN1746351B (fr)
AT (1) ATE409764T1 (fr)
DE (2) DE102004043773A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015124497A1 (fr) * 2014-02-19 2015-08-27 Oerlikon Textile Gmbh & Co. Kg Dispositif de frisage de fils multifilaments
WO2017001000A1 (fr) * 2015-06-30 2017-01-05 Heberlein Ag Pièce de mise en forme pour un noyau de filière, noyau de filière et dispositif de frisage pour frisage par bourrage, kit d'équipement, dispositif d'arrêt et élément de mise en place, et procédé correspondant

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1629143B1 (fr) * 2003-05-27 2012-06-06 Oerlikon Heberlein Temco Wattwil AG Partie centrale de filiere pour un dispositif de production de fil boucle et procede de fabrication d'une partie centrale de filiere
CN103243423A (zh) * 2013-05-29 2013-08-14 济南大自然化学有限公司 纤维丝束与卷曲机自动对接装置
CN106079047A (zh) * 2016-08-09 2016-11-09 厦门理工学院 一种陶瓷喷嘴压制成型装置
US20220034000A1 (en) * 2018-12-04 2022-02-03 Oerlikon Textile Gmbh & Co. Kg Method for operating a crimping apparatus, and crimping apparatus
TWI768571B (zh) * 2019-11-28 2022-06-21 日商京瓷股份有限公司 紡絲噴嘴及紡絲裝置
CN113715577B (zh) * 2021-09-06 2023-06-13 浙江吉利控股集团有限公司 用于非热泵热管理集成模块的集成通道装置及电动车

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19809600C1 (de) * 1998-03-03 1999-10-21 Heberlein Fasertech Ag Garnbehandlungseinrichtung
WO2003004743A1 (fr) * 2001-07-03 2003-01-16 Saurer Gmbh & Co. Kg Dispositif de frisage par compression

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3296677A (en) * 1963-05-20 1967-01-10 Eastman Kodak Co Crimping apparatus and process
US3638291A (en) * 1970-10-01 1972-02-01 Du Pont Yarn-treating jet
US3710460A (en) * 1971-03-17 1973-01-16 Du Pont Yarn treating jet having a guide fastened to its outlet end
US4063338A (en) * 1975-11-19 1977-12-20 Textured Yarn Co., Inc. Strand treatment method and apparatus
CN1005199B (zh) * 1985-01-19 1989-09-20 巴马格·巴默机器制造股份公司 丝传送和变形用的喷嘴
DE3927910A1 (de) * 1989-08-24 1991-02-28 Stahlecker Fritz Falschdrallduese fuer pneumatisches falschdrallspinnen
US4949441A (en) * 1989-10-13 1990-08-21 Ethridge Fredrick A Polylaminar apparatus for fluid treatment of yarn
US5157819A (en) * 1991-03-29 1992-10-27 Basf Corporation Modular yarn interlacer
IT1251323B (it) * 1991-09-18 1995-05-08 Filteco Spa Ugello e metodo di trattamento di filato
TW538153B (en) * 1998-03-03 2003-06-21 Heberlein Fibertechnology Inc Process for air-jet texturing of frill yarn and yarn-finishing device and the application thereof
GB9902501D0 (en) * 1999-02-05 1999-03-24 Fibreguide Ltd Air jet
AT411467B (de) * 2000-01-12 2004-01-26 Sml Maschinengesellschaft Mbh Texturierdüse

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19809600C1 (de) * 1998-03-03 1999-10-21 Heberlein Fasertech Ag Garnbehandlungseinrichtung
WO2003004743A1 (fr) * 2001-07-03 2003-01-16 Saurer Gmbh & Co. Kg Dispositif de frisage par compression

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015124497A1 (fr) * 2014-02-19 2015-08-27 Oerlikon Textile Gmbh & Co. Kg Dispositif de frisage de fils multifilaments
WO2017001000A1 (fr) * 2015-06-30 2017-01-05 Heberlein Ag Pièce de mise en forme pour un noyau de filière, noyau de filière et dispositif de frisage pour frisage par bourrage, kit d'équipement, dispositif d'arrêt et élément de mise en place, et procédé correspondant
US10883202B2 (en) 2015-06-30 2021-01-05 Heberlein Ag Molded part for a nozzle core, nozzle core and stuff-crimping device for crimping, expansion kit, locking device and setting element as well as method therefor
US11913484B2 (en) 2015-06-30 2024-02-27 Heberlein Technology Ag Molded part for a nozzle core, nozzle core and stuff-crimping device for crimping, expansion kit, locking device and setting element as well as method therefor

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DE502005005512D1 (de) 2008-11-13
US7260875B2 (en) 2007-08-28
US20060053606A1 (en) 2006-03-16
ATE409764T1 (de) 2008-10-15
CN1746351B (zh) 2011-01-05
DE102004043773A1 (de) 2006-04-13
JP2006077385A (ja) 2006-03-23
CN1746351A (zh) 2006-03-15
EP1634982B1 (fr) 2008-10-01

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