WO2010063692A1 - Dispositif pour enrouler un faisceau de fibres alimenté en continu, et procédé pour placer un faisceau de fibres alimenté en continu dans un dispositif d'enroulement - Google Patents

Dispositif pour enrouler un faisceau de fibres alimenté en continu, et procédé pour placer un faisceau de fibres alimenté en continu dans un dispositif d'enroulement Download PDF

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Publication number
WO2010063692A1
WO2010063692A1 PCT/EP2009/066108 EP2009066108W WO2010063692A1 WO 2010063692 A1 WO2010063692 A1 WO 2010063692A1 EP 2009066108 W EP2009066108 W EP 2009066108W WO 2010063692 A1 WO2010063692 A1 WO 2010063692A1
Authority
WO
WIPO (PCT)
Prior art keywords
fiber strand
hollow spindle
thread
inlet opening
suction
Prior art date
Application number
PCT/EP2009/066108
Other languages
German (de)
English (en)
Inventor
Frank Heymann
Original Assignee
Oerlikon Textile Gmbh & Co. Kg
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 Oerlikon Textile Gmbh & Co. Kg filed Critical Oerlikon Textile Gmbh & Co. Kg
Publication of WO2010063692A1 publication Critical patent/WO2010063692A1/fr

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H7/00—Spinning or twisting arrangements
    • D01H7/02—Spinning or twisting arrangements for imparting permanent twist
    • D01H7/88—Hollow-spindle arrangements

Definitions

  • the invention relates to a device for winding a continuously tapered fiber strand with a composite thread according to the preamble of claim 1 and a method for applying a continuously tapered fiber strand in such a device.
  • a generic device is known for example from DE 199 24 881 Al.
  • the known device has a hollow spindle which is coupled with a drive. On the circumference of the hollow spindle, a coil holder is arranged, which is fixedly connected to the hollow spindle and which serves to receive a supply spool. For winding a fiber strand this is first performed in the center of the hollow spindle, so that the fiber strand penetrates the hollow spindle from an inlet end to an outlet end.
  • the hollow spindle is driven by the bobbin holder, wherein a composite thread is continuously wound around the fiber strand on the discharge side of the hollow spindle by the supply bobbin held on the bobbin holder. It is customary here for the fiber strand to be drawn off from a fiber bobbin. Thus, a discontinuous process arises, which is interrupted by the required bobbin change of the supply bobbin and the fiber bobbin.
  • Another object of the invention is to provide a method for applying a continuously tapered fiber strand in a generic device, in which in particular short interruption times for changing a supply spool are executable.
  • This object is achieved by a device for winding a continuously tapered fiber strand according to the features of claim 1 and by a method for applying a continuously running strand of fibers in such a device according to the features of claim 13.
  • the invention is characterized in that a continuously supplied fiber strand for threading into the hollow spindle can be guided by a suction flow.
  • the fiber strand which is usually guided with a suction gun, can be guided into a defined contact position at the inlet end of the hollow spindle.
  • the inlet end of the hollow spindle is assigned an injector device connected to the hollow spindle and a thread guide element.
  • the device according to the invention also has the advantage that even a fiber strand formed from a plurality of individual fibers can be securely threaded into the hollow spindle.
  • the thread guide element is designed to be movable and can be guided between a contact position laterally adjacent to the hollow spindle and an operating position axially in front of the hollow spindle.
  • the fiber strand can be guided at a short distance over the inlet opening, so that even small suction flows are sufficient to grip the fiber strand and to convey it into the hollow spindle.
  • the yarn guide element held in an operating position enables a flexible yarn guide of the fiber strand.
  • the fiber strand can also be supplied to the side of the hollow spindle, so that the fiber strand wraps around the thread guide element with, for example, an angle of 90 ° and runs centrally into the hollow spindle.
  • the device according to the invention offers a high degree of flexibility in order to be integrated in a production process of a fiber strand.
  • the development of the invention is preferably used, in which the thread guide element in the
  • both the thread guide element and the flow thread guide are formed by freely rotatable deflection rollers.
  • the injector In order to produce, if necessary, at the beginning of the process or after a process interruption required for threading the fiber strand suction flow, the injector according to an advantageous embodiment of the device according to the invention on a Druckbuchinjektor which is connected to the hollow spindle such that at the inlet opening at the inlet end of the hollow spindle Suction flow can be generated.
  • the injector device has a guide groove transversely to the inlet opening, which extends on both sides of the inlet opening, is particularly advantageous for the application and threading of the fiber strand.
  • the suction flow at the inlet opening is characterized directly effective evenly on the fiber strand and leads to a fast and safe collection of the fiber strand.
  • the fiber strand is usually produced continuously and fed to the individual treatment devices.
  • the development of the invention is particularly advantageous, in which at the opposite outlet end of the hollow spindle, a sensor device is provided, through which the withdrawn from a supply bobbin composite thread is monitored. This makes it possible to ensure that in the production process, after winding each length of the fiber strand, it has a wrap around with the composite thread.
  • the sensor device can also be preferred
  • the feeding of the fiber strand preferably takes place at a constant delivery speed in order to obtain a uniform winding of the composite thread on the fiber strand at a constant speed of the hollow spindle.
  • a godet unit with a driven godet and a hooking roller is assigned to the thread guiding element on an inlet side. This particular slip-free promotions of the fiber strand are possible.
  • the further development of the device according to the invention is particularly advantageous, in which a thread-suction device is arranged in the yarn path between the godet unit and the thread guide element.
  • the thread-suction device is activated for separating and removing the fiber strand by a control device which is connected to the sensor device.
  • a signalized lack of a composite thread thus leads directly to an interruption of the Umwindereaes, the upstream treatment steps of the manufacturing process of the fiber strand remain unaffected.
  • the inventive method for applying a continuous fiber strand is tuned to conventional techniques of manufacturing processes.
  • continuously generated fiber strands are usually applied at the beginning of the process by a manually guided suction gun to the individual treatment facilities.
  • a suction flow is initially generated at the inlet opening of the hollow spindle.
  • a guide element is positioned laterally adjacent to the inlet opening to prevent the application of the To allow guided by a suction gun fiber strands across the inlet opening.
  • the suction gun is guided such that the fiber strand crosses the inlet opening at the inlet end of the hollow spindle at a short distance, so that the suction flow is effective at the fiber strand.
  • the fiber strand with the end becoming free is drawn into the hollow spindle under the effect of the suction flow and blown out again at the outlet end of the hollow spindle.
  • the thread guide element can now lead to an operating position, so that the fiber strand can run into the center of the hollow spindle.
  • the variant of the method is preferably used, in which the fiber strand is taken over at the opposite outlet end of the hollow spindle of a stationary suction connected to a suction device.
  • the fiber strand can be transferred to a manually guided suction gun and threaded into the subsequent treatment units.
  • the threading process at the inlet opening of the injector can be further improved by the fiber strand is inserted and guided in a transverse to the inlet opening guide groove.
  • the guide groove ensures that the fiber strand is completely above the inlet opening and thus the suction effect can act on the fiber strand with high intensity.
  • the device according to the invention for winding a continuously tapered fiber strand and the method for applying a continuously tapered fiber strand will be explained in more detail below with reference to an embodiment of the device according to the invention with reference to the attached figures. They show:
  • FIG. 1 schematically shows a view of an exemplary embodiment of the device according to the invention within a manufacturing process
  • FIG. 2 schematically shows a cross-sectional view of the exemplary embodiment from FIG. 1 in several operating situations
  • FIG. 1 an embodiment of the inventive device within an extrusion process for the production of a synthetic fiber strand is schematically shown in a view.
  • the embodiment is arranged upstream of a winding device 27 in the yarn path.
  • the exemplary embodiment has a hollow spindle 1 rotatably mounted on a carrier 7.
  • the hollow spindle 1 is coupled to a drive 3.
  • a coil holder 2 On the circumference of the hollow spindle 1, a coil holder 2 is fixed, which carries a feed bobbin 17.
  • the supply spool 17 is surrounded by a cylindrical housing 37, which is held on the carrier 7.
  • the thread guide element 9 has in this embodiment, a guide roller 10 which is rotatably supported at the free end of a pivot arm 11.
  • the pivot arm 11 is pivotally mounted to guide the guide roller 10 between an operating position in the axial direction in front of the inlet end 4 of the hollow spindle 1 or in a contact position laterally adjacent to the hollow spindle 1.
  • the thread guide element 9 is in the operating position.
  • the docking of the thread guide element 9 is shown in dashed lines.
  • the injector 6 is rotatably connected to the hollow spindle 1, so that an adapted to the yarn path alignment of the guide roller 10 is possible.
  • the hollow spindle 1 On the discharge side, the hollow spindle 1 has an open outlet end 5.
  • the outlet end 5 is followed by a sensor device 12, which is held at a distance from the outlet end 5.
  • the sensor device 12 is followed by a drain thread guide 15, which spans a guide plane with the thread guide element 9 arranged with the opposite end of the hollow spindle 1.
  • a continuously fed fiber strand 16 is guided through the hollow spindle 1, so that the fiber strand 16 penetrates into the hollow spindle 1 in a straight yarn path.
  • FIG. 2 For further explanation of the device for winding the fiber strand with a composite thread, reference is additionally made to FIG. 2.
  • Fig. 2 the embodiment is shown in a cross-sectional view in different operating ssituationen.
  • Fig. 2.1 shows the device according to the invention immediately before the start of a process
  • Fig. 2.2 illustrates the embodiment during the process.
  • Figs. 2.1 and 2.2 only the necessary for threading the fiber strand and the winding of the fiber strand devices are shown schematically. Unless an explicit reference is made to one of the figures, the following description applies to both figures.
  • the hollow spindle 1 is driven by the drive 3.
  • the drive 3 is formed in this embodiment as an electric motor which is arranged directly on the circumference of the hollow spindle 1.
  • the bobbin holder 2 is fixedly connected to the hollow spindle 1 and rotates with the hollow spindle with activated drive 3.
  • On the bobbin holder 2 is a Feed bobbin 17 held.
  • the supply spool 17 is fitted with its winding tube 19 on the bobbin holder 2 and fixed to the bobbin holder 2 such that the supply bobbin 17 can be driven with the bobbin holder 2 via the hollow spindle 1.
  • the supply spool 17 is shielded to the outside by a hollow cylindrical housing 37.
  • the housing 37 is fixed to the carrier 7.
  • the hollow spindle 1 has an open inlet end 4 and an open outlet end 5.
  • an injector device 6 is arranged which has a compressed air injector 36, which is connected to a controllable compressed air source (not shown here).
  • the injector device 6 is arranged at the inlet end 4 of the hollow spindle 1 such that the hollow spindle 1 can be driven independently of the stationary injector device 6.
  • the injector device 6 In the axial extension of the hollow spindle 1, the injector device 6 has a guide channel 38, which opens into the hollow spindle 1 with one end and forms an inlet opening 8 with the opposite end.
  • the compressed air injector 36 opens into the guide channel 38, so that a compressed air flow in the direction of the outlet end 5 of the hollow spindle 1 is generated.
  • a suction flow which is used for threading a fiber strand 16.
  • the guide groove 39 and the guide roller 10 are rectified and lie in a common running plane of the fiber strand.
  • the alignment within a machine is preferably achieved by a rotation of the injector 6, which is then fixed.
  • the injector device 6 is preferably held via a motor housing of the drive 3. The function of the injector device 6 will be described in more detail below.
  • the injector 6 is associated with the thread guide element 9, which is formed by the guide roller 10 and the pivot arm 11.
  • the guide roller 10 can be guided by the pivot arm 11 so according to the situation in an operating position or landing position.
  • the thread guide element 9 is held in the landing position and in Fig. 2.2 in the operating position.
  • the function of the thread guide element 9 will also be explained in more detail below.
  • the outlet end 5 of the hollow spindle 1 is followed by the sensor device 12.
  • the Sensor device 12 formed by a guide ring 13 and a sensor 14.
  • the guide ring 13 is formed by two partial rings, which form a balloon guide of the withdrawn from the supply spool 17 composite thread 18.
  • the sensor 14 detects the guided on the guide ring 13 composite thread 18.
  • the sensor 14 may have optical or capacitive means for this purpose.
  • the sensor device 12 is downstream of the flow guide 15, which spans with the thread guide element 9 in the operating position, a thread guide plane through which the fiber strand 16 in a straight run through the hollow spindle 1 is feasible.
  • a suction nozzle 20 is arranged, which is connected to a suction device, not shown here. At the suction nozzle 20 can thus generate a suction flow for receiving and removing the fiber strand and the composite thread.
  • the fiber strand 16 is threaded into the hollow spindle 1.
  • Fig. 2.1 In an extrusion process in which the fiber strand is produced by extrusion of a polymer melt, the continuous fiber strand 16 is guided by means of a suction gun 35 in order to be able to apply the fiber strand into the individual treatment devices. About the suction gun 35, the fiber strand 16 is continuously recorded and guided to a waste container. To prepare the application process, the injector 6 is activated. In this case, a compressed air is introduced into the guide channel 38 by the compressed air injector 36, which opens into the hollow spindle 1. It arises at the inlet opening 8 at the inlet end 4 of the hollow spindle 1, a suction flow.
  • the suction nozzle 20 is activated opposite to the outlet end 5 of the hollow spindle 1, so that a suction flow in the suction nozzle 20 acts.
  • a supply spool 17 is held on the bobbin holder 2, and the composite yarn 18 is taken up via the suction port 20 and discharged to a yarn waste container.
  • the fiber strand 16 is inserted into the guide groove 39 via the suction gun 35 and guided transversely over the inlet opening 8.
  • the fiber strand 16 can thus be led directly to the inlet opening 8, so that the suction flow generated by the inlet opening 8 detects the fiber strand 16 and leads into the guide channel 38 and the hollow spindle 1.
  • the fiber strand 16 is severed at the suction gun 35, so that a free end of the fiber strand 16 is formed.
  • the free end of the fiber strand 16 is blown out of the hollow spindle at the outlet end 5 and captured by the suction flow of the suction nozzle 20.
  • the suction gun 35 can be guided in the region of the suction nozzle 20 to take over the fiber strand 16 and the composite thread 18.
  • the composite yarn 18 and the fiber strand 16 are brought together and applied to the drainage yarn guide 15.
  • the supply spool 17 is rotated, so that the fiber strand 16 is continuously wound with the composite thread 18.
  • the suction gun 35 can now be the fiber strand 16 and the composite yarn 18 create in the subsequent winding device 27.
  • FIG. 2.2 shows the operating situation of the device according to the invention.
  • the injector 6 and the suction nozzle 20 is deactivated.
  • the thread guide element 9 is preferably pivoted directly after threading into the operating position.
  • the guide roller 10 is arranged in the axial direction of the inlet end 4 of the hollow spindle, so that the fiber strand 16 in the straight run is preferably feasible centrally to the hollow spindle 1.
  • the fiber strand 16 can be fed from any direction to the thread guide element 9.
  • On the discharge side of the composite yarn 18 is wound by rotation of the supply spool 17 continuously around the fiber strand 16. In this case, the balloon of the composite thread 18 produced by rotation of the supply spool 17 is monitored by the sensor device 12.
  • the fiber strand 16 wound with the composite thread 18 is then guided over the flow yarn guide 15 in order to be wound in the subsequent take-up device 27 into a coil.
  • the flow guide 15 is also preferably designed as a deflection roller, so that low-friction deflections from the spindle axis are possible out. This results in a high flexibility in the arrangement of the inventive device within a manufacturing process.
  • a godet unit 21 For feeding the fiber strand 16, a godet unit 21 is provided.
  • the godet unit 21 is formed by a driven godet 22 and a freely rotatable Beilaufrolle 23.
  • the fiber strand 16 with several wraps substantially slip-free the inlet end 4 of the hollow spindle 1 feed.
  • a thread suction device 24 and a yarn guide 26 is arranged between the thread guide element 9 on the inlet side of the hollow spindle 1.
  • the thread-suction device 24 is coupled to a control device 25, which is connected to the sensor device 12.
  • the thread-suction device 24 includes release means and suction means, not shown here, to receive the fiber strand 16 during a bobbin change of the supply spool 17.
  • a control command is triggered in the control device 25 in order to activate the thread suction device 24. This ensures that in the manufacturing process of the fiber strand 16 is always wrapped with a composite thread 18 fiber strand wound into a coil.
  • the further treatment of the fiber strand is carried out in the embodiment shown in FIG. 1 by winding the wound fiber strand 16 to a coil 31.
  • a winding device 27 which has a drivable coil holder 30.
  • the bobbin holder 30 is associated with a pressure roller 32 and a traversing device 34, which are held on a movable roller carrier 33.
  • the pressure roller 32 is in contact with the surface of the coil 31 during winding of the coil 31.
  • the drive of the bobbin holder 30 is controlled such that a constant take-up speed and thus a constant withdrawal of the fiber strand 16 from the upstream Umwindeprocess takes place.
  • the control and regulation of the drive of the bobbin holder 30 via a Tänzerarmregel affection 29.
  • the fiber strand 16 is guided between two stationary yarn guides 28.1 and 28.2 in a loop which is held by a dancer arm of Tänzerarmregel responded 29 to a constant level.
  • the illustrated embodiment of the device according to the invention is shown in a vertical arrangement in which the hollow spindle is traversed vertically from bottom to top of the fiber strand.
  • Such an arrangement is exemplary.
  • control unit 26 thread guide

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

L'invention concerne un dispositif pour enrouler un faisceau de fibres qui comporte un fil composite et qui est alimenté en continu. Ce dispositif comprend une broche creuse actionnable ainsi qu'un porte-bobine qui est disposé à la périphérie de la broche creuse. L'objectif de cette invention est de pouvoir embobiner le faisceau de fibres alimenté en continu à l'aide de moyens simples. A cet effet, un dispositif d'injection relié à la broche creuse et un élément de guidage de fil sont associés à une extrémité d'admission de la broche creuse par laquelle le faisceau de fibres peut être embobiné dans une ouverture d'admission de la broche creuse au début du processus. Un flux d'aspiration est généré au niveau de l'ouverture d'admission, ledit élément de guidage étant placé latéralement à côté de l'ouverture d'admission. Le faisceau de fibres est maintenu perpendiculairement à l'ouverture d'admission au moyen d'un pistolet à aspiration puis est sectionné de manière que le faisceau de fibres puisse être embobiné dans la broche creuse.
PCT/EP2009/066108 2008-12-01 2009-12-01 Dispositif pour enrouler un faisceau de fibres alimenté en continu, et procédé pour placer un faisceau de fibres alimenté en continu dans un dispositif d'enroulement WO2010063692A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008059837 2008-12-01
DE102008059837.2 2008-12-01

Publications (1)

Publication Number Publication Date
WO2010063692A1 true WO2010063692A1 (fr) 2010-06-10

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PCT/EP2009/066108 WO2010063692A1 (fr) 2008-12-01 2009-12-01 Dispositif pour enrouler un faisceau de fibres alimenté en continu, et procédé pour placer un faisceau de fibres alimenté en continu dans un dispositif d'enroulement

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2076863A (en) * 1980-05-31 1981-12-09 Schubert & Salzer Maschinen Apparatus for effecting a thread join in a bound yarn
DE3135270A1 (de) * 1981-09-05 1983-03-24 Fritz 7347 Bad Überkingen Stahlecker Umwindegarnspinnaggregat
EP0489225A1 (fr) * 1990-11-29 1992-06-10 Palitex Project-Company GmbH Broche à retordre à double torsion avec dispositif d'enfilage pneumatique
DE4309474C1 (de) * 1993-03-24 1994-05-19 Saurer Allma Gmbh Kabliermaschine und Verfahren zum Einfädeln von Fäden in ein Regulier- und Spannungsausgleichswerk einer Kablierspindel
DE19924883A1 (de) * 1999-02-01 2000-08-03 Temco Textilmaschkomponent Vorrichtung zur Herstellung von Umwindegarn

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2076863A (en) * 1980-05-31 1981-12-09 Schubert & Salzer Maschinen Apparatus for effecting a thread join in a bound yarn
DE3135270A1 (de) * 1981-09-05 1983-03-24 Fritz 7347 Bad Überkingen Stahlecker Umwindegarnspinnaggregat
EP0489225A1 (fr) * 1990-11-29 1992-06-10 Palitex Project-Company GmbH Broche à retordre à double torsion avec dispositif d'enfilage pneumatique
DE4309474C1 (de) * 1993-03-24 1994-05-19 Saurer Allma Gmbh Kabliermaschine und Verfahren zum Einfädeln von Fäden in ein Regulier- und Spannungsausgleichswerk einer Kablierspindel
DE19924883A1 (de) * 1999-02-01 2000-08-03 Temco Textilmaschkomponent Vorrichtung zur Herstellung von Umwindegarn

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