EP0446447A1 - Yarn delivering device - Google Patents

Yarn delivering device Download PDF

Info

Publication number
EP0446447A1
EP0446447A1 EP90123730A EP90123730A EP0446447A1 EP 0446447 A1 EP0446447 A1 EP 0446447A1 EP 90123730 A EP90123730 A EP 90123730A EP 90123730 A EP90123730 A EP 90123730A EP 0446447 A1 EP0446447 A1 EP 0446447A1
Authority
EP
European Patent Office
Prior art keywords
thread
delivery device
particular according
suction
guide tube
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
EP90123730A
Other languages
German (de)
French (fr)
Other versions
EP0446447B1 (en
EP0446447B2 (en
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.)
Sobrevin Societe de Brevets Industriels
Original Assignee
Sobrevin Societe de Brevets Industriels
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6401592&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0446447(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Sobrevin Societe de Brevets Industriels filed Critical Sobrevin Societe de Brevets Industriels
Priority to EP94116058A priority Critical patent/EP0659918B1/en
Priority to EP94119612A priority patent/EP0657379A2/en
Priority to DE9018101U priority patent/DE9018101U1/en
Publication of EP0446447A1 publication Critical patent/EP0446447A1/en
Publication of EP0446447B1 publication Critical patent/EP0446447B1/en
Application granted granted Critical
Publication of EP0446447B2 publication Critical patent/EP0446447B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/34—Handling the weft between bulk storage and weft-inserting means
    • D03D47/36—Measuring and cutting the weft
    • D03D47/361—Drum-type weft feeding devices
    • D03D47/364—Yarn braking means acting on the drum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H51/00—Forwarding filamentary material
    • B65H51/16—Devices for entraining material by flow of liquids or gases, e.g. air-blast devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H57/00—Guides for filamentary materials; Supports therefor
    • B65H57/003—Arrangements for threading or unthreading the guide
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/34—Handling the weft between bulk storage and weft-inserting means
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/34—Handling the weft between bulk storage and weft-inserting means
    • D03D47/36—Measuring and cutting the weft
    • D03D47/361—Drum-type weft feeding devices
    • D03D47/364—Yarn braking means acting on the drum
    • D03D47/366—Conical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the invention relates to a delivery device for running threads, in particular for use on textile machines, according to the preamble of claim 1.
  • a delivery device of the type in question is known from DE-OS 37 34 284, wherein the thread end conveyed by compressed air through the thread guide tube, after leaving the thread guide tube in the area in front of the storage drum, is directed from a blow nozzle oriented approximately parallel to the drum axis into a radially slotted guide channel becomes. This passes through the brake ring in the area of the root of the bristles and forms a channel section which is curved beyond the brake ring in the direction of the drum axis. A further blowing air nozzle opens into this in such a way that its jet runs radially to the drum axis and directs the thread into a channel-like, approximately triangular section of the head cone. The thread end is guided through this into the area of a suction blowing nozzle.
  • a disadvantage of this configuration is the complex structure of the thread delivery device, due to the blowing air nozzles and additional channels required at the deflection points.
  • the object on which the invention is based is to design a delivery device of the aforementioned type in a technically simple manner in such a way that automatic, reliable threading of the thread is made possible with a minimum of components and nozzles.
  • a generic delivery device for running threads with a simple structure is specified, which is characterized by reliable threading of the thread using compressed air.
  • the number of nozzles working with compressed air is reduced to a minimum.
  • the thread blown through the thread guide tube now emerges in a plane vertically above the thread take-off eyelet in such a way that the thread end runs approximately parallel to the drum jacket surface, then is grasped along the jacket surface of the head cone by means of the suction air flow and is further conveyed while passing through the thread take-off eye. This is done using the force of gravity acting on the thread end, which has a supporting effect on the threading process.
  • the thread end is therefore always detected with certainty and sucked into the thread take-off eyelet.
  • Additional deflection nozzles in order to obtain a corresponding course of the thread direction can accordingly be dispensed with, combined with reduced manufacturing costs for the delivery device.
  • a channeling of the head cone is also not necessary, so that it can maintain its smooth surface, which favors the thread take-off.
  • the configuration according to the invention allows working with customary, available compressed air values.
  • the threading process is further supported by the fact that the suction blow nozzle assigned to the thread take-off eyelet is arranged in a baffle for the blowing stream emerging from the thread guide tube.
  • This baffle accordingly fulfills a double function: on the one hand it serves to hold the suction blowing nozzle and on the other hand there is also a deflection wall for the thread end, so that it does not shoot past the suction blowing nozzle, but favors the threading process.
  • Manufacturing advantages of the delivery device also result from a suction blow nozzle in front of the end of the thread guide tube on the insertion side.
  • This suction blowing nozzle can have the same structure as the thread extraction eyelet designed as an axial suction blowing nozzle, with a reduction in the number of different components.
  • the brake ring In order to enable threading of the thread, the brake ring must first have been displaced in the axial direction of the storage drum in such a way that its bristles leave a gap to the drum surface, so that the thread end can take its intended path under the bristles.
  • the brake ring In order to achieve a favorable position of the brake ring in its working and disengaging position, the brake ring is adjustable on a sliding carriage. Independent of the displacement stroke of the brake ring, the individual setting can therefore always be made.
  • the thread guide tube bent in the axial direction of the drum always directs the thread end in such a way that it is directed into the previously left gap. The thread end therefore always comes to the thread take-off eye as intended.
  • the take-over and deflection of the thread can take place through a deflection channel running in the axial direction, into which the mouth end of the thread guide tube is directed.
  • the suction blow nozzle arranged at the insertion-side end of the thread guide tube therefore always brings the thread end into the suction area of the thread take-off eye designed as an axial suction blow nozzle.
  • These two suction blow nozzles work on the Venturi principle.
  • the suction blowing nozzles are constructed so that an annular chamber is arranged upstream of their annular gap.
  • the wall forming the same annular gap is provided with a ring of air passage holes.
  • the bristles can be adjusted in a simple manner by means of an adjusting screw accessible from the head end.
  • the sliding carriage carrying the brake ring changes its position in relation to the storage drum.
  • This set screw passes through an opening in the baffle and can be operated from there.
  • the lateral surface area of the head cone lying behind the baffle runs in a straight line from the base edge to the tip of the cone, achieving a favorable thread steering. This in turn ends in front of the suction blowing nozzle there.
  • the air supply to both suction blow nozzles is approximately the same, so that work can be carried out with the same pressure and the same line cross sections, which likewise contributes to a simplification in the structure of the delivery device.
  • the delivery device has a housing 1 to be fastened, for example, to a carrier of a weaving machine.
  • This houses a stator 3 in a housing cavity 2, in which a rotor 4 rotates. The latter is penetrated by a rotor shaft 5.
  • the thread threading end of which is seated in a roller bearing 6 which is inserted in a cover 7 closing the housing cavity 2.
  • a cross-sectionally larger collar 8 of the rotor shaft 5 facing away from the threading end starts from an inclined thread guide tube 9, the mouth end 10 of which is bent in the axial direction of a storage drum 11 arranged coaxially to the rotor shaft 5.
  • the storage drum 11 forms a thread run-up truncated cone surface 12, so that when the thread guide tube 9 rotates, the rear thread turns advance the front thread turns already on the storage drum toward the head end of the storage drum 11.
  • the storage drum itself is rotatable. So that it does not rotate together with the thread guide tube 9, it is firmly connected to a truncated cone 13 equipped with magnets, not shown. Its magnets are located opposite to fixed magnets 14 of a ring 15 on the housing side.
  • the storage drum 11 At its free-flying front end, the storage drum 11 carries a head cone 16. Its base lies against the front side of the storage drum and is somewhat smaller than the diameter of the storage drum 11.
  • the lateral surface area M of the head cone 16 starts from the base edge B and extends in a straight line up to to the cone tip 17. The same extends to the inlet opening 18 of a thread take-off eye 19.
  • the extension 21 extending beyond the storage drum 11 is located at such a parallel distance from the storage drum 11 that it does not impair the orbital movement of the thread guide tube 9.
  • the boom 21 receives a compressed air cylinder 22. Its piston rod 23 engages a sliding carriage 24 which is longitudinally displaceable in the interior of the boom 21. Relative to this, a carrier 25 is guided for a brake ring 26 that runs concentrically to the storage drum axis.
  • the sliding carriage 24 supports an adjusting screw 27, for the actuating end 28 of which the baffle 20 forms an opening 29. Rotation of the actuation handle 28 is accompanied by a longitudinal displacement of the carrier 25, depending on the direction in which the brake ring 26 is to be adjusted.
  • the brake ring 26 is provided with bristles 30 directed towards the drum in such a way that they are aligned with the lateral surface of the head cone 16. In the working position, the bristle ends rest against the head cone 16 of the storage drum 11.
  • the thread guide tube 9 continues into a thread channel 31 which extends centrally through the rotor shaft and which widens at the end on the threading side.
  • a suction blow nozzle 32 is provided in the housing cover 7.
  • the nozzle housing 34 receives at its end facing the rotor shaft 5 a sealing collar 35 which extends to the free end of the rotor shaft 5. Accordingly, the thread channel 31 directly adjoins the outlet opening 36 of the sealing collar 35.
  • the outlet opening 36 is in turn connected to a short through-flow channel 37 of the nozzle body 34, which channel 37 subsequently widens to form a frustoconical channel 38 in order to then merge into a circular-cylindrical channel section 39.
  • a nozzle body 40 is pressed into this. In the middle it forms a thread passage channel 41, which is smaller in diameter than that of the flow channel 37 in the nozzle body 34.
  • the nozzle body 40 is equipped with a truncated cone section 42, the cone angle of which is smaller than that of the truncated cone Channel 38.
  • the smallest diameter of the truncated cone section 42 is smaller than that of the flow channel 37, so that an annular gap 43 remains accordingly.
  • the nozzle body 40 On its circular-cylindrical remaining length, the nozzle body 40 forms an annular chamber 44, in whose wall 45 on the annular gap side a ring of air passage holes 46 is provided. A compressed air supply line 47 opens into the annular chamber 44. A threading eyelet 48 is then arranged upstream of the nozzle body 40 and is in turn firmly embedded in the nozzle housing 44.
  • the thread take-off eye 19 is also designed as a suction blowing nozzle. It has a nozzle housing 49 which is inserted into the baffle wall 20 and has a nozzle body 50 which corresponds in structure to that of the suction blowing nozzle 32.
  • the feed lines 47, 51 of both suction blow nozzles 19, 32 assigned a common valve 52. The latter is connected to a compressed air source 54 via a compressed air line 53.
  • a feed line 55 extends from the valve 52 to a distributor 56, which is connected both to the supply lines 47, 51 and to the supply line 57, which leads to the compressed air cylinder 22 .
  • the valve 52 can be controlled by means of a handle 58.
  • both the suction blowing nozzles 19, 32 and the compressed air cylinder 22 are fed via the compressed air line 53 and feed line 55 via the distributor 56, which displaces the brake ring 26 in the axial direction in such a way that its bristles enter a gap position with respect to the drum surface, see gap 60 in Fig. 3.
  • the aforementioned handle 58 is advantageously located on a box 59 connected to the housing 1, in which the valve 52 as well as the distributor 56 and the corresponding connections are accommodated.
  • the width of the baffle 20 receiving the suction blowing nozzle 19 corresponds to approximately one third of the diameter of the storage drum 11.
  • the rotor shaft 5 Before threading a thread F, the rotor shaft 5 is stopped in such a position that the thread guide tube 9 originating from the collar 8 or its mouth end 10 lies vertically above the thread take-off eye 19 in one plane.
  • the handle 58 is then to be actuated, the suction blowing nozzles 19, 32 receiving compressed air at the same time.
  • This also applies to the compressed air cylinder 22, which displaces the brake ring 26 via its piston rod 23 and sliding carriage 24, so that its bristles reach a gap-forming release position, cf. Fig. 3. It is now the thread end in the Bring area of threading eyelet 48.
  • the deflection directed radially inwards onto the thread take-off eye 19 then takes place by means of the deflection on the lateral surface of the Head cone 16 lying suction air flow, which deflection is supported by the gravity of the thread end.
  • the baffle 20 represents a limitation of the trajectory, so that the thread end does not go beyond the baffle, but with certainty reaches the extraction eyelet 19 designed as a suction blow nozzle and from there also emerges from the venturi principle.
  • the handle 58 can return to its starting position with the interruption of the compressed air supply.
  • a spring, not shown, accommodated in the compressed air cylinder 22 then returns the brake ring 26 to its starting position.
  • the bent mouth end 10 is missing in the thread guide tube 9.
  • the mouth end, which extends in the same direction to the thread guide tube in this second exemplary embodiment 61 is directed into a deflection channel 62 running parallel to the storage drum axis direction. This is located in a block 63 inserted into the boom 21 and extending below the compressed air cylinder 22.
  • the deflection channel 62 has three adjoining bottom sections 62 ', 62'',62'''.
  • first bottom section 62 ' rises at an acute angle in the direction of the thread passage and directs the thread end to the bottom section 62''parallel to the drum axis.
  • the third bottom section 62 ''' runs at an acute angle to the drum axis and directs the thread end into the gap 60 between the bristles 30 and the storage drum in the direction of the head cone 16, baffle wall 20 and suction blowing nozzle 19.
  • the threading process is also carried out while the handle 58 is pressed.
  • the deflection of the thread now takes place in the transition area between the mouth end 61 and the suction blowing nozzle 19 through the deflection channel 62, so that additional deflection nozzles can also be omitted in this version.
  • the funnel-shaped enlargement 64 of the deflection channel 62 on the input side has a relieving effect during the threading process.
  • the threading of the thread always takes place in the position in which the mouth end 51 of the thread guide tube 9 is located in a plane vertically above the thread take-off eye. Then both the force of gravity and the corresponding lateral surface of the head cone located in the same plane can be used for thread guidance.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Forwarding And Storing Of Filamentary Material (AREA)
  • Looms (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Coiling Of Filamentary Materials In General (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

The invention relates to a delivery device for running yarns, especially for use on textile machines, having a storage drum (11), to which the yarn (F) is fed in the rear region by means of a yarn-guide tube (9) encircling the storage drum and from which the yarn (F) is drawn off overhead by means of a yarn draw-off eye (19). To allow as simple an automatic threading of the yarn (F) as possible by means of compressed air, it proposes that a deflection, directed radially inwards towards the yarn draw-off eye (19), of the yarn end flying freely in a plane vertically above the yarn draw-off eye (19) should take place, this being achieved solely by means of a suction-air flow lying on the outer surface of the head cone (16). <IMAGE>

Description

Die Erfindung betrifft eine Liefervorrichtung für laufende Faden, insbesondere zum Einsatz an Textilmaschinen, gemäß Gattungsbegriff des Patentanspruches 1.The invention relates to a delivery device for running threads, in particular for use on textile machines, according to the preamble of claim 1.

Eine Liefervorrichtung der in Rede stehenden Art ist bekannt aus der DE-OS 37 34 284, wobei das durch Druckluft durch das Fadenführungsrohr geförderte Fadenende nach Verlassen des Fadenführungsrohres im Bereich vor der Speichertrommel von einer etwa parallel zur Trommelachse ausgerichteten Blasdüse in einen radial geschlitzen Führungskanal gelenkt wird. Dieser durchgreift den Bremsring im Bereich der Wurzel der Borsten und bildet jenseits des Bremsringes einen in Richtung der Trommelachse gekrümmten Kanalabschnitt aus. In diesen mündet eine weitere Blasluftdüse derart, daß deren Strahl radial zur Trommelachse verläuft und den Faden in einen kanalartigen, etwa dreieckförmigen Ausschnitt des Kopfkegels lenkt. Durch diesen wird das Fadenende in den Bereich einer Saugblasdüse geleitet. Nachteilig an dieser Ausgestaltung ist der aufwendige Aufbau der Fadenliefervorrichtung, bedingt durch die an den Umlenkstellen erforderlichen Blasluftdüsen und zusätzlichen Kanäle.A delivery device of the type in question is known from DE-OS 37 34 284, wherein the thread end conveyed by compressed air through the thread guide tube, after leaving the thread guide tube in the area in front of the storage drum, is directed from a blow nozzle oriented approximately parallel to the drum axis into a radially slotted guide channel becomes. This passes through the brake ring in the area of the root of the bristles and forms a channel section which is curved beyond the brake ring in the direction of the drum axis. A further blowing air nozzle opens into this in such a way that its jet runs radially to the drum axis and directs the thread into a channel-like, approximately triangular section of the head cone. The thread end is guided through this into the area of a suction blowing nozzle. A disadvantage of this configuration is the complex structure of the thread delivery device, due to the blowing air nozzles and additional channels required at the deflection points.

Die der Erfindung zugrundeliegende Aufgabe besteht nun darin, eine Liefervorrichtung der vorgenannten Art in herstellungstechnisch einfacher Weise so auszugestalten, daß mit einem Mindestaufwand an Bauteilen und Düsen ein automatisches, zuverlässiges Einfädeln des Fadens ermöglicht ist.The object on which the invention is based is to design a delivery device of the aforementioned type in a technically simple manner in such a way that automatic, reliable threading of the thread is made possible with a minimum of components and nozzles.

Gelöst wird diese Aufgabe durch die im Kennzeichen des Patentanspruches 1 angegebenen Merkmale.This object is achieved by the features specified in the characterizing part of patent claim 1.

Die Unteransprüche betreffen vorteilhafte Weiterbildungen der erfinderischen Lösung.The subclaims relate to advantageous developments of the inventive solution.

Zufolge derartiger Ausgestaltung ist eine gattungsgemäße Liefervorrichtung für laufende Fäden bei einfachem Aufbau angegeben, die sich durch ein zuverlässiges Einfädeln des Fadens mittels Druckluft auszeichnet. Die Anzahl von mit Druckluft arbeitenden Düsen ist auf ein Minimum reduziert. Der durch das Fadenführungsrohr geblasene Faden tritt nun in einer Ebene vertikal oberhalb der Fadenabzugsöse aus derart, daß das Fadenende etwa parallel zur Trommelmantelfläche verläuft, danach entlang der Mantelfläche des Kopfkegels mittels des Saugluftstromes erfaßt und unter Durchsetzen der Fadenabzugsöse weiter gefördert wird. Dies geschieht unter Ausnutzung der auf das Fadenende wirkenden Schwerkraft, was sich unterstützend auf den Einfädelvorgang auswirkt. Das Fadenende wird daher stets mit Sicherheit erfaßt und in die Fadenabzugsöse eingesaugt. Zusätzliche Umlenkdüsen, um einen entsprechenden Fadenrichtungsverlauf zu erhalten, können demgemäß entfallen verbunden mit verringerten Herstellungskosten für die Liefervorrichtung. Auch eine Kanalisierung des Kopfkegels ist nicht erforderlich, so daß dieser seine glatte, den Fadenabzug begünstigende Oberfläche beibehalten kann. Im übrigen läßt es die erfindungsgemäße Ausgestaltung zu, mit üblichen, zur Verfügung stehenden Druckluftwerten zu arbeiten. Unterstützt wird der Einfädelvorgang noch durch die Tatsache, daß die der Fadenabzugsöse zugeordnete Saugblasdüse in einer Prallwand für den aus dem Fadenführungsrohr austretenden Blasstrom angeordnet ist. Demgemäß erfüllt diese Prallwand eine Doppelfunktion: Einerseits dient sie zur Halterung der Saugblasdüse und andererseits stellt sich noch eine Umlenkwand für das Fadenende dar, so daß dieses nicht über die Saugblasdüse hinaus an dieser vorbeischießt, sondern den Einfädelvorgang begünstigt. Herstellungstechnische Vorteile der Liefervorrichtung ergeben sich ferner durch eine Saugblasdüse vor dem einführseitigen Ende des Fadenführungsrohres. Diese Saugblasdüse kann den gleichen Aufbau wie die als axiale Saugblasdüse gestaltete Fadenabzugsöse besitzen unter Verringerung der unterschiedlichen Bauteile. Um das Einfädeln des Fadens zu ermöglichen, muß zuvor der Bremsring in axialer Richtung der Speichertrommel verlagert worden sein derart, daß seine Borsten einen Spalt zur Trommelmantelfläche belassen, so daß das Fadenende unter den Borsten her seinen bestimmungsgemäßen Weg nehmen kann. Zwecks Erzielung einer günstigen Position des Bremsringes in seiner Arbeits- und Ausrückstellung ist der Bremsring einstellbar auf einem Verschiebeschlitten. Unabhängig von dem Verlagerungshub des Bremsringes kann daher stets die individuelle Einstellung erfolgen. Das in Achsrichtung der Trommel abgebogene Fadenführungsrohr lenkt das Fadenende stets so, daß es in den zuvor belassenen Spalt gerichtet ist. Das Fadenende gelangt daher bestimmungsgemäß stets zur Fadenabzugsöse. Bei einer erfindungsgemäßen Varianten, bei welcher ein entsprechend abgebogenes Führungsende am Fadenführungsrohr fehlt, kann die Übernahme und Umlenkung des Fadens durch einen in Achsrichtung verlaufenden Umlenkkanal erfolgen, in welchen das Mündungsende des Fadenführungsrohres hineingerichtet ist. Durch die am einführseitigen Ende des Fadenführungsrohres angeordnete Saugblasdüse wird daher stets das Fadenende bis in den Ansaugbereich der als axiale Saugblasdüse gestalteten Fadenabzugsöse gebracht. Diese beiden Saugblasdüsen arbeiten nach dem Venturi-Prinzip. Im Detail sind die Saugblasdüsen so aufgebaut, daß ihrem Ringspalt eine Ringkammer vorgeordnet ist. Die zur Bildung derselben ringspaltseitige Wand ist mit einen Kranz von Luftdurchtrittslöchern versehen. Es erfolgt daher eine gleichmäßige Speisung des Ringspaltes mit Druckluft unter Erzielung optimaler Saugblaswirkung. Es bietet sich dabei die Möglichkeit an, beide Saugblasdüsen über ein gemeinsames Ventil zu speisen. Auf aufwendige Folgesteuerungen kann daher verzichtet werden. Hierzu trägt auch das parallel zur Saugblasdüsen-Versorgung gesteuerte Zu- und Abstellen des Bremsringes bei. Im Detail sieht dies so aus, daß der Bremsring mittels eines Druckluftzylinders abgestellt und durch Federkraft wieder zurückgestellt ist. Herstellungstechnisch vereinfachend wirkt sich das Merkmal aus, daß die Prallwand an einem den Verschiebeschlitten des Bremsringes lagernden oberen Ausleger sitzt. Demgemäß wird ein Bauteil für verschiedene Aufgabe herangezogen. Einen günstigen Fadenumlenkeffekt erzeugen die Borsten dadurch, daß sie entsprechend der Mantelfläche des Kopfkegels ausgerichtet sind. Das Einstellen der Borsten läßt sich in einfacher Weise mittels einer vom Kopfende her zugänglichen Stellschraube vornehmen. Mit einem Verdrehen derselben verändert der den Bremsring tragende Verschiebeschlitten seine Position zur Speichertrommel. Diese Stellschraube durchsetzt eine Öffnung der Prallwand und kann von dort aus betätigt werden. Der hinter der Prallwand liegende Mantelflächenbereich des Kopfkegels verläuft dabei unter Erzielung einer günstigen Fadenlenkung in geradliniger Erstreckung von der Basiskante bis zur Kegelspitze. Diese wiederum endet vor der dortigen Saugblasdüse. Hervorzuheben ist noch, daß die Luftversorgung beider Saugblasdüsen etwa gleich ist, so daß mit gleichem Druck und gleichen Leitungsquerschnitten gearbeitet werden kann, was ebenfalls zu einer Vereinfachung im Aufbau der Liefervorrichtung beiträgt.As a result of such a configuration, a generic delivery device for running threads with a simple structure is specified, which is characterized by reliable threading of the thread using compressed air. The number of nozzles working with compressed air is reduced to a minimum. The thread blown through the thread guide tube now emerges in a plane vertically above the thread take-off eyelet in such a way that the thread end runs approximately parallel to the drum jacket surface, then is grasped along the jacket surface of the head cone by means of the suction air flow and is further conveyed while passing through the thread take-off eye. This is done using the force of gravity acting on the thread end, which has a supporting effect on the threading process. The thread end is therefore always detected with certainty and sucked into the thread take-off eyelet. Additional deflection nozzles in order to obtain a corresponding course of the thread direction can accordingly be dispensed with, combined with reduced manufacturing costs for the delivery device. A channeling of the head cone is also not necessary, so that it can maintain its smooth surface, which favors the thread take-off. For the rest, the configuration according to the invention allows working with customary, available compressed air values. The threading process is further supported by the fact that the suction blow nozzle assigned to the thread take-off eyelet is arranged in a baffle for the blowing stream emerging from the thread guide tube. This baffle accordingly fulfills a double function: on the one hand it serves to hold the suction blowing nozzle and on the other hand there is also a deflection wall for the thread end, so that it does not shoot past the suction blowing nozzle, but favors the threading process. Manufacturing advantages of the delivery device also result from a suction blow nozzle in front of the end of the thread guide tube on the insertion side. This suction blowing nozzle can have the same structure as the thread extraction eyelet designed as an axial suction blowing nozzle, with a reduction in the number of different components. In order to enable threading of the thread, the brake ring must first have been displaced in the axial direction of the storage drum in such a way that its bristles leave a gap to the drum surface, so that the thread end can take its intended path under the bristles. In order to achieve a favorable position of the brake ring in its working and disengaging position, the brake ring is adjustable on a sliding carriage. Independent of the displacement stroke of the brake ring, the individual setting can therefore always be made. The thread guide tube bent in the axial direction of the drum always directs the thread end in such a way that it is directed into the previously left gap. The thread end therefore always comes to the thread take-off eye as intended. In a variant according to the invention, in which a correspondingly bent guide end is missing on the thread guide tube, the take-over and deflection of the thread can take place through a deflection channel running in the axial direction, into which the mouth end of the thread guide tube is directed. The suction blow nozzle arranged at the insertion-side end of the thread guide tube therefore always brings the thread end into the suction area of the thread take-off eye designed as an axial suction blow nozzle. These two suction blow nozzles work on the Venturi principle. In detail, the suction blowing nozzles are constructed so that an annular chamber is arranged upstream of their annular gap. The wall forming the same annular gap is provided with a ring of air passage holes. It is therefore done a uniform supply of compressed air to the annular gap while achieving optimal suction blowing. It is possible to feed both suction blow nozzles via a common valve. Complex sequence controls can therefore be dispensed with. This is also due to the fact that the brake ring is activated and deactivated in parallel with the suction blower supply. In detail, this means that the brake ring is switched off by means of a compressed air cylinder and set back again by spring force. The feature that the baffle is seated on an upper arm bearing the sliding carriage of the brake ring simplifies the production process. Accordingly, a component is used for various tasks. The bristles produce a favorable thread deflecting effect by aligning them with the outer surface of the head cone. The bristles can be adjusted in a simple manner by means of an adjusting screw accessible from the head end. By turning the same, the sliding carriage carrying the brake ring changes its position in relation to the storage drum. This set screw passes through an opening in the baffle and can be operated from there. The lateral surface area of the head cone lying behind the baffle runs in a straight line from the base edge to the tip of the cone, achieving a favorable thread steering. This in turn ends in front of the suction blowing nozzle there. It should also be emphasized that the air supply to both suction blow nozzles is approximately the same, so that work can be carried out with the same pressure and the same line cross sections, which likewise contributes to a simplification in the structure of the delivery device.

Nachstehend werden zwei Ausführungsbeispiele der Erfindung anhand von Zeichnungen erläutert. Es zeigt

Fig. 1
eine Liefervorrichtung für laufende Fäden gemäß dem ersten Ausführungsbeispiel in Ansicht,
Fig. 2
teilweise im Längsschnitt und teilweise in Ansicht die Fadenliefervorrichtung vor dem Einfädeln des Fadens,
Fig. 3
eine der Fig. 2 entsprechende Darstellung, jedoch bei in Achsrichtung zur Speichertrommel verlagertem Bremsring bei eingefädeltem Faden,
Fig. 4
in starker Vergrößerung einen Längsschnitt durch die am einführseitigen Ende des Fadenführungsrohres befindliche Saugblasdüse, die in ihrem Aufbau der am abzugsseitigen Ende befindlichen Saugblasdüse entspricht,
Fig. 5
einen Querschnitt durch die Saugblasdüse auf Höhe der Ringkammer, in Richtung der mit Luftdurchtrittslöchern ausgestatteten ringspaltseitigen Wand gesehen,
Fig. 6
ein Blockschaltbild hinsichtlich der Druckluftbeaufschlagung der Saugblasdüsen und des dem Bremsring zugeordneten Druckluftzylinders,
Fig. 7
teilweise im Längsschnitt, teilweise in Ansicht die Liefervorrichtung gemäß der zweiten Ausführungsform und
Fig. 8
eine Unteransicht des den Umlenkkanal aufweisenden Blockes.
Two exemplary embodiments of the invention are explained below with reference to drawings. It shows
Fig. 1
a delivery device for running threads according to the first embodiment in view,
Fig. 2
partly in longitudinal section and partly in view of the thread delivery device before threading the thread,
Fig. 3
2 shows a representation corresponding to FIG. 2, but with the brake ring displaced in the axial direction to the storage drum with the threading in,
Fig. 4
in large enlargement a longitudinal section through the suction blow nozzle located at the insertion end of the thread guide tube, the structure of which corresponds to that of the suction blow nozzle located at the withdrawal end,
Fig. 5
a cross section through the suction blowing nozzle at the level of the annular chamber, in the direction of the wall on the annular gap side equipped with air passage holes,
Fig. 6
2 shows a block diagram with regard to the compressed air supply to the suction blowing nozzles and the compressed air cylinder assigned to the brake ring,
Fig. 7
partly in longitudinal section, partly in view of the delivery device according to the second embodiment and
Fig. 8
a bottom view of the block having the deflection channel.

Die Liefervorrichtung gemäß dem ersten Ausführungsbeispiel, dargestellt in den Fig. 1 - 6, besitzt ein beispielsweise an einem Träger einer Webmaschine zu befestigendes Gehäuse 1. Dieses nimmt in einer Gehäusehöhlung 2 einen Stator 3 auf, in welchem ein Rotor 4 umläuft. Letzterer wird durchsetzt von einer Rotorwelle 5. Deren fadeneinfädelungsseitiges Ende sitzt in einem Wälzlager 6, das in einem die Gehäusehöhlung 2 verschließenden Deckel 7 eingesetzt ist.The delivery device according to the first exemplary embodiment, shown in FIGS. 1-6, has a housing 1 to be fastened, for example, to a carrier of a weaving machine. This houses a stator 3 in a housing cavity 2, in which a rotor 4 rotates. The latter is penetrated by a rotor shaft 5. The thread threading end of which is seated in a roller bearing 6 which is inserted in a cover 7 closing the housing cavity 2.

Von einem querschnittsgrößeren, dem Einfädelungsende abgekehrten Bund 8 der Rotorwelle 5 geht ein geneigt gerichtetes Fadenführungsrohr 9 aus, dessen Mündungsende 10 in Achsrichtung einer koaxial zur Rotorwelle 5 angeordneten Speichertrommel 11 abgebogen ist. Auf Höhe des Mündungsendes 10 formt die Speichertrommel 11 eine Fadenauflauf-Kegelstumpffläche 12, so daß beim Umlauf des Fadenführungsrohres 9 die rückwärtigen Fadenwindungen die vorderen, bereits auf der Speichertrommel befindlichen Fadenwindungen zum Kopfende der Speichertrommel 11 hin vorschieben. Die Speichertrommel selbst ist drehbar angeordnet. Damit sie jedoch nicht zusammen mit dem Fadenführungsrohr 9 umläuft, ist sie mit einem mit nicht veranschaulichten Magneten bestückten Kegelstumpf 13 fest verbunden. Dessen Magnete befinden sich in Gegenüberlage zu ortsfesten Magneten 14 eines gehäuseseitigen Ringes 15.A cross-sectionally larger collar 8 of the rotor shaft 5 facing away from the threading end starts from an inclined thread guide tube 9, the mouth end 10 of which is bent in the axial direction of a storage drum 11 arranged coaxially to the rotor shaft 5. At the level of the mouth end 10, the storage drum 11 forms a thread run-up truncated cone surface 12, so that when the thread guide tube 9 rotates, the rear thread turns advance the front thread turns already on the storage drum toward the head end of the storage drum 11. The storage drum itself is rotatable. So that it does not rotate together with the thread guide tube 9, it is firmly connected to a truncated cone 13 equipped with magnets, not shown. Its magnets are located opposite to fixed magnets 14 of a ring 15 on the housing side.

An seinem freifliegenden Stirnende trägt die Speichertrommel 11 einen Kopfkegel 16. Dessen Basis liegt an der Stirnseite der Speichertrommel an und ist etwas kleiner als der Durchmesser der Speichertrommel 11. Der Mantelflächenbereich M des Kopfkegels 16 geht von der Basiskante B aus und verläuft in geradliniger Erstreckung bis zur Kegelspitze 17. Dieselbe erstreckt sich bis zur Einlaßöffnung 18 einer Fadenabzugsöse 19.At its free-flying front end, the storage drum 11 carries a head cone 16. Its base lies against the front side of the storage drum and is somewhat smaller than the diameter of the storage drum 11. The lateral surface area M of the head cone 16 starts from the base edge B and extends in a straight line up to to the cone tip 17. The same extends to the inlet opening 18 of a thread take-off eye 19.

Als Träger der vorgenannten Fadenabzugsöse 19 dient eine Prallwand 20, die vertikal verläuft und an ihrem oberen Ende von einem im Querschnitt U-förmigen, am Gehäuse 1 befestigten Ausleger 21 gehalten ist. Der sich über die Speichertrommel 11 hinaus erstreckende Ausleger 21 befindet sich in einem solchen parallelen Abstand zur Speichertrommel 11, daß er die Umlaufbewegung des Fadenführungsrohres 9 nicht beeinträchtigt.A baffle wall 20, which runs vertically and is held at its upper end by a cross-sectionally U-shaped bracket 21 fastened to the housing 1, serves as the carrier of the aforementioned thread take-off eye 19. The extension 21 extending beyond the storage drum 11 is located at such a parallel distance from the storage drum 11 that it does not impair the orbital movement of the thread guide tube 9.

In seinem Innenraum nimmt der Ausleger 21 einen Druckluftzylinder 22 auf. Dessen Kolbenstange 23 greift an einem im Innenraum des Auslegers 21 längsverschieblich geführten Verschiebeschlitten 24 an. Relativ zu diesem ist ein Träger 25 für einen konzentrisch zur Speichertrommelachse verlaufenden Bremsring 26 geführt. Der Verschiebeschlitten 24 lagert eine Stellschraube 27, für deren Betätigungsende 28 die Prallwand 20 eine Öffnung 29 ausbildet. Mit einem Verdrehen der Betätigungshandhabe 28 geht eine Längsverschiebung des Trägers 25 einher, und zwar in Abhängigkeit davon, in welche Richtung der Bremsring 26 verstellt werden soll.In its interior, the boom 21 receives a compressed air cylinder 22. Its piston rod 23 engages a sliding carriage 24 which is longitudinally displaceable in the interior of the boom 21. Relative to this, a carrier 25 is guided for a brake ring 26 that runs concentrically to the storage drum axis. The sliding carriage 24 supports an adjusting screw 27, for the actuating end 28 of which the baffle 20 forms an opening 29. Rotation of the actuation handle 28 is accompanied by a longitudinal displacement of the carrier 25, depending on the direction in which the brake ring 26 is to be adjusted.

Der Bremsring 26 ist mit trommeleinwärts gerichteten Borsten 30 versehen derart, daß diese entsprechend der Mantelfläche des Kopfkegels 16 ausgerichtet sind. In der Arbeitsstellung liegen die Borstenenden an dem Kopfkegel 16 der Speichertrommel 11 an.The brake ring 26 is provided with bristles 30 directed towards the drum in such a way that they are aligned with the lateral surface of the head cone 16. In the working position, the bristle ends rest against the head cone 16 of the storage drum 11.

Das Fadenführungsrohr 9 setzt sich in einen die Rotorwelle zentral durchgreifenden Fadenkanal 31 fort, welcher sich am einfädelungsseitigen Ende erweitert. Dort ist in dem Gehäusedeckel 7 eine Saugblasdüse 32 vorgesehen. In einer zentralen Öffnung des Gehäusesdeckels 7 befindet sich eine Distanzbüchse 33, in welcher das Düsengehäuse 34 fest eingesetzt ist. Das Düsengehäuse 34 nimmt an seinem der Rotorwelle 5 zugekehrten Ende einen Dichtkragen 35 auf, der bis zum freien Stirnende der Rotorwelle 5 reicht. Demgemäß schließt sich der Fadenkanal 31 unmittelbar an die Austrittsöffnung 36 des Dichtkragens 35 an. Die Austrittsöffnung 36 steht ihrerseits in Verbindung mit einem kurzen Durchströmkanal 37 des Düsenkörpers 34, welcher Kanal 37 sich im Anschluß daran zu einem kegelstumpfförmigen Kanal 38 erweitert, um danach in einen kreiszylindrischen Kanalabschnitt 39 überzugehen. In diesen ist ein Düsenkörper 40 eingepreßt. Mittig bildet er einen Fadendurchgangskanal 41 aus, der im Durchmesser kleiner ist als derjenige des Durchströmkanals 37 im Düsenkörper 34. Etwa auf seiner halben, dem Durchströmkanal 37 zugekehrten Länge ist der Düsenkörper 40 mit einem Kegelstumpfabschnitt 42 ausgestattet, dessen Kegelwinkel geringer ist als derjenige des kegelstumpfförmigen Kanales 38. Der kleinste Durchmesser des Kegelstumpfabschnittes 42 ist kleiner als derjenige des Durchströmkanales 37, so daß demgemäß ein Ringspalt 43 verbleibt. Auf seiner kreiszylindrisch gestalteten Restlänge bildet der Düsenkörper 40 eine Ringkammer 44, in deren ringspaltseitiger Wand 45 ein Kranz von Luftdurchtrittslöchern 46 vorgesehen ist. In die Ringkammer 44 mündet eine Druckluftzuführleitung 47. Dem Düsenkörper 40 ist dann noch eine Einfädelungsöse 48 vorgeordnet, die ihrerseits im Düsengehäuse 44 fest eingebettet ist.The thread guide tube 9 continues into a thread channel 31 which extends centrally through the rotor shaft and which widens at the end on the threading side. There, a suction blow nozzle 32 is provided in the housing cover 7. In In a central opening of the housing cover 7 there is a spacer sleeve 33 in which the nozzle housing 34 is firmly inserted. The nozzle housing 34 receives at its end facing the rotor shaft 5 a sealing collar 35 which extends to the free end of the rotor shaft 5. Accordingly, the thread channel 31 directly adjoins the outlet opening 36 of the sealing collar 35. The outlet opening 36 is in turn connected to a short through-flow channel 37 of the nozzle body 34, which channel 37 subsequently widens to form a frustoconical channel 38 in order to then merge into a circular-cylindrical channel section 39. A nozzle body 40 is pressed into this. In the middle it forms a thread passage channel 41, which is smaller in diameter than that of the flow channel 37 in the nozzle body 34. Approximately half of its length facing the flow channel 37, the nozzle body 40 is equipped with a truncated cone section 42, the cone angle of which is smaller than that of the truncated cone Channel 38. The smallest diameter of the truncated cone section 42 is smaller than that of the flow channel 37, so that an annular gap 43 remains accordingly. On its circular-cylindrical remaining length, the nozzle body 40 forms an annular chamber 44, in whose wall 45 on the annular gap side a ring of air passage holes 46 is provided. A compressed air supply line 47 opens into the annular chamber 44. A threading eyelet 48 is then arranged upstream of the nozzle body 40 and is in turn firmly embedded in the nozzle housing 44.

Die Fadenabzugsöse 19 ist ebenfalls als Saugblasdüse gestaltet. Sie besitzt ein in die Prallwand 20 eingesetztes Düsengehäuse 49 mit einem Düsenkörper 50, der in seinem Aufbau demjenigen der Saugblasdüse 32 entspricht. Den Zuleitungen 47, 51 beider Saugblasdüsen 19, 32 ist ein gemeinsames Ventil 52 zugeordnet. Letzteres steht über eine Druckluftleitung 53 in Verbindung mit einer Druckluftquelle 54. Von dem Ventil 52 geht eine Speiseleitung 55 zu einem Verteiler 56 aus, der sowohl mit den Zuleitungen 47, 51 als auch mit der Zuleitung 57 in Verbindung steht, welche zum Druckluftzylinder 22 führt. Das Ventil 52 ist mittels einer Handhabe 58 steuerbar. Durch Einwärtsverlagerung derselben werden über die Druckluftleitung 53 und Speiseleitung 55 über den Verteiler 56 sowohl die Saugblasdüsen 19, 32 als auch der Druckluftzylinder 22 gespeist, welcher den Bremsring 26 in axialer Richtung verlagert derart, daß seine Borsten in eine Spaltstellung zur Trommelmantelfläche treten, siehe Spalt 60 in Fig. 3.The thread take-off eye 19 is also designed as a suction blowing nozzle. It has a nozzle housing 49 which is inserted into the baffle wall 20 and has a nozzle body 50 which corresponds in structure to that of the suction blowing nozzle 32. The feed lines 47, 51 of both suction blow nozzles 19, 32 assigned a common valve 52. The latter is connected to a compressed air source 54 via a compressed air line 53. A feed line 55 extends from the valve 52 to a distributor 56, which is connected both to the supply lines 47, 51 and to the supply line 57, which leads to the compressed air cylinder 22 . The valve 52 can be controlled by means of a handle 58. By shifting them inward, both the suction blowing nozzles 19, 32 and the compressed air cylinder 22 are fed via the compressed air line 53 and feed line 55 via the distributor 56, which displaces the brake ring 26 in the axial direction in such a way that its bristles enter a gap position with respect to the drum surface, see gap 60 in Fig. 3.

Die vorgenannte Handhabe 58 befindet sich vorteilhafterweise an einem mit dem Gehäuse 1 verbundenen Kasten 59, in dem das Ventil 52 als auch der Verteiler 56 und die entsprechenden Anschlüsse untergebracht sind.The aforementioned handle 58 is advantageously located on a box 59 connected to the housing 1, in which the valve 52 as well as the distributor 56 and the corresponding connections are accommodated.

Die die Saugblasdüse 19 aufnehmende Prallwand 20 entspricht in ihrer Breite etwa einem Drittel des Durchmessers der Speichertrommel 11.The width of the baffle 20 receiving the suction blowing nozzle 19 corresponds to approximately one third of the diameter of the storage drum 11.

Vor dem Einfädeln eines Fadens F wird die Rotorwelle 5 in einer solchen Stellung stillgesetzt, daß das vom Bund 8 ausgehende Fadenführungsrohr 9 bzw. dessen Mündungsende 10 in einer Ebene vertikal oberhalb der Fadenabzugsöse 19 liegt. Danach ist die Handhabe 58 zu betätigen, wobei gleichzeitig die Saugblasdüsen 19, 32 Druckluftzufuhr erhalten. Dies trifft auch zu auf den Druckluftzylinder 22, welcher über seine Kolbenstange 23 und Verschiebeschlitten 24 den Bremsring 26 verlagert, so daß dessen Borsten in eine spaltbildende Freigabestellung gelangen, vgl. Fig. 3. Es ist nun das Fadenende in den Bereich der Einfädelungsöse 48 zu bringen. Zufolge der in die Ringkammer 44 eintretenden Druckluft, welche die Luftdurchtrittslöcher 46 durchwandert und von dort aus den Ringspalt 43 verläßt, um in den Fadenkanal 31 einzuströmen, entsteht im Fadendurchgangskanal 41 ein Unterdruck, durch welchen der Faden F angesogen wird. Sobald der Faden F in den Durchströmkanal 37 gelangt, wird er durch die dort mit Druck austretende Luft mitgenommmen und durch das Fadenführungsrohr 9 weitergefördert. Druckluftbeaufschlagt verläßt das Fadenende das Mündungsende 10 des Fadenführungsrohres 9, verläuft etwa parallel oberhalb der Speichertrommel 11 und durchsetzt den Spalt 60 zwischen Speichertrommel 11 und Borsten 30 des Bremsringes 26. Die radial einwärts auf die Fadenabzugsöse 19 gerichtete Umlenkung erfolgt dann mittels des auf der Mantelfläche des Kopfkegels 16 liegenden Saugluftstromes, welche Umlenkung unterstützt wird durch die Schwerkraft des Fadenendes. Die Prallwand 20 stellt dabei eine Begrenzung der Flugbahn dar, so daß das Fadenende nicht über die Prallwand hinausgeht, sondern mit Sicherheit zur als Saugblasdüse gestalteten Abzugsöse 19 gelangt und von dort ebenfalls nach dem Venturi-Prinzip aus dieser austritt. Nach erfolgter Einfädelung des Fadens F kann die Handhabe 58 in ihre Ausgangsstellung zurückkehren unter Unterbrechung der Druckluftzufuhr. Eine im Druckluftzylinder 22 untergebrachte, nicht veranschaulichte Feder stellt dann den Bremsring 26 wieder in seine Ausgangsstellung zurück.Before threading a thread F, the rotor shaft 5 is stopped in such a position that the thread guide tube 9 originating from the collar 8 or its mouth end 10 lies vertically above the thread take-off eye 19 in one plane. The handle 58 is then to be actuated, the suction blowing nozzles 19, 32 receiving compressed air at the same time. This also applies to the compressed air cylinder 22, which displaces the brake ring 26 via its piston rod 23 and sliding carriage 24, so that its bristles reach a gap-forming release position, cf. Fig. 3. It is now the thread end in the Bring area of threading eyelet 48. As a result of the compressed air entering the annular chamber 44, which travels through the air passage holes 46 and leaves the annular gap 43 from there in order to flow into the thread channel 31, a negative pressure is created in the thread passage channel 41, through which the thread F is drawn. As soon as the thread F reaches the throughflow channel 37, it is taken along by the air escaping there with pressure and is conveyed further through the thread guide tube 9. Compressed with air, the thread end leaves the mouth end 10 of the thread guide tube 9, runs approximately parallel above the storage drum 11 and passes through the gap 60 between the storage drum 11 and bristles 30 of the brake ring 26. The deflection directed radially inwards onto the thread take-off eye 19 then takes place by means of the deflection on the lateral surface of the Head cone 16 lying suction air flow, which deflection is supported by the gravity of the thread end. The baffle 20 represents a limitation of the trajectory, so that the thread end does not go beyond the baffle, but with certainty reaches the extraction eyelet 19 designed as a suction blow nozzle and from there also emerges from the venturi principle. After threading the thread F, the handle 58 can return to its starting position with the interruption of the compressed air supply. A spring, not shown, accommodated in the compressed air cylinder 22 then returns the brake ring 26 to its starting position.

Bei der in den Fig. 7 und 8 veranschaulichten zweiten Ausführungsform tragen gleiche Bauteile gleiche Bezugsziffern. Abweichend von der ersten Ausführungsform fehlt beim Fadenführungsrohr 9 das abgebogene Mündungsende 10. Das sich bei diesem zweiten Ausführungsbeispiel in gleicher Richtung zum Fadenführungsrohr erstreckende Mündungsende 61 ist in einen parallel zur Speichertrommel-Achsrichtung verlaufenden Umlenkkanal 62 gerichtet. Dieser befindet sich in einem in den Ausleger 21 eingesetzten, sich unterhalb des Druckluftzylinders 22 erstreckenden Block 63. Der Umlenkkanal 62 besitzt drei sich anschließende Bodenabschnitte 62', 62'', 62'''. Diese sind so angeordnet, daß der erste Bodenabschnitt 62' spitzwinklig ansteigend in Fadendurchlaufrichtung verläuft und das Fadenende zum parallel zur Trommelachse gerichteten Bodenabschnitt 62'' lenkt. Der dritte Bodenabschnitt 62''' verläuft entgegengesetzt spitzwinklig zur Trommelachse und lenkt das Fadenende in den Spalt 60 zwischen Borsten 30 und Speichertrommel in Richtung des Kopfkegels 16, Prallwand 20 und Saugblasdüse 19. Der Einfädelvorgang wird ebenfalls bei gedrückter Handhabe 58 vorgenommen. Die Umlenkung des Fadens geschieht nun im Übergangsbereich zwischen Mündungsende 61 und Saugblasdüse 19 durch den Umlenkkanal 62, so daß auch bei dieser Version zusätzliche Umlenkdüsen entfallen können. Erleichternd wirkt sich beim Einfädelungsvorgang die eingangsseitige trichterförmige Erweiterung 64 des Umlenkkanales 62 aus.In the second embodiment illustrated in FIGS. 7 and 8, identical components have the same reference numerals. In a departure from the first embodiment, the bent mouth end 10 is missing in the thread guide tube 9. The mouth end, which extends in the same direction to the thread guide tube in this second exemplary embodiment 61 is directed into a deflection channel 62 running parallel to the storage drum axis direction. This is located in a block 63 inserted into the boom 21 and extending below the compressed air cylinder 22. The deflection channel 62 has three adjoining bottom sections 62 ', 62'',62'''. These are arranged in such a way that the first bottom section 62 'rises at an acute angle in the direction of the thread passage and directs the thread end to the bottom section 62''parallel to the drum axis. The third bottom section 62 '''runs at an acute angle to the drum axis and directs the thread end into the gap 60 between the bristles 30 and the storage drum in the direction of the head cone 16, baffle wall 20 and suction blowing nozzle 19. The threading process is also carried out while the handle 58 is pressed. The deflection of the thread now takes place in the transition area between the mouth end 61 and the suction blowing nozzle 19 through the deflection channel 62, so that additional deflection nozzles can also be omitted in this version. The funnel-shaped enlargement 64 of the deflection channel 62 on the input side has a relieving effect during the threading process.

Ferner erfolgt bei dieser Version die Einfädelung des Fadens stets in der Stellung, in welcher sich das Mündungsende 51 des Fadenführungsrohres 9 in einer Ebene vertikal oberhalb der Fadenabzugsöse befindet. Dann kann sowohl die Schwerkraft als auch die entsprechende in der gleichen Ebene befindliche Mantelfläche des Kopfkegels zur Fadenführung herangezogen werden.Furthermore, in this version the threading of the thread always takes place in the position in which the mouth end 51 of the thread guide tube 9 is located in a plane vertically above the thread take-off eye. Then both the force of gravity and the corresponding lateral surface of the head cone located in the same plane can be used for thread guidance.

Die in der vorstehenden Beschreibung, der Zeichnung und den Ansprüchen offenbarten Merkmale der Erfindung können sowohl einzeln als auch in beliebiger Kombination für die Verwirklichung der Erfindung von Bedeutung sein.The features of the invention disclosed in the above description, the drawing and the claims can be of importance both individually and in any combination for the implementation of the invention.

Alle offenbarten Merkmale sind erfindungswesentlich. In die Offenbarung der Anmeldung wird hiermit auch der Offenbarungsinhalt der zugehörigen/beigefügten Prioritätsunterlagen (Abschrift der Voranmeldung) vollinhaltlich mit einbezogen.All disclosed features are essential to the invention. The disclosure content of the associated / attached priority documents (copy of the prior application) is hereby also included in full in the disclosure of the application.

Claims (15)

Liefervorrichtung für laufende Fäden, insbesondere zum Einsatz an Textilmaschinen, wie Webstühle oder dergleichen, mit einer Speichertrommel (11), welcher der Faden (F) in rückwärtigem Bereich mittels eines die Speichertrommel umkreisenden Fadenführungsrohres (9) zugeführt und von welcher der Faden (F) durch eine Fadenabzugsöse (19) über Kopf abgezogen wird und bei welcher ein automatisches Einfädeln des Fadens (F) mittels Druckluft erfolgt derart, daß der Faden (F) zunächst durch das Fadenführungsrohr (9) geblasen, mündungsseitig desselben, parallel zur Trommelmantelfläche umgelenkt und endseitig derselben unter den Borsten eines einen Spalt zur Trommelmantelfläche belassenden Bremsringes (26) her radial einwärts bis in den Bereich einer Spitze eines trommelseitigen Kopfkegels (16) geleitet ist, welche Spitze auf den freien Querschnitt der als axiale Saugblasdüse gestalteten Fadenabzugsöse (19) gerichtet ist, dadurch gekennzeichnet, daß die radial einwärts auf die Fadenabzugsöse (19) gerichtete Umlenkung des in einer Ebene vertikal oberhalb der Fadenabzugsöse (19) freifliegenden Fadenendes ausschließlich mittels eines auf der Mantelfläche des Kopfkegels (16) liegenden Saugluftstromes erzielt ist.Delivery device for running threads, in particular for use on textile machines, such as looms or the like, with a storage drum (11), to which the thread (F) is fed in the rear region by means of a thread guide tube (9) encircling the storage drum and from which the thread (F) is pulled off overhead by a thread take-off eye (19) and in which the thread (F) is automatically threaded using compressed air in such a way that the thread (F) is first blown through the thread guide tube (9), deflected on the mouth side thereof, parallel to the drum jacket surface and at the end the same is guided radially inward under the bristles of a brake ring (26) leaving a gap to the drum jacket surface into the region of a tip of a drum-side head cone (16), which tip is directed towards the free cross section of the thread take-off eye (19) designed as an axial suction blowing nozzle, characterized in that the radially inward on the Thread take-off eyelet (19) directed deflection of the thread end exposed in a plane vertically above the thread take-off eyelet (19) is achieved exclusively by means of a suction air stream lying on the lateral surface of the head cone (16). Liefervorrichtung, insbesondere nach Anspruch 1, dadurch gekennzeichnet, daß die der Fadenabzugsöse (19) zugeordnete Saugblasdüse in einer Prallwand (20) für den aus dem Fadenführungsrohr (9) austretenden Blasstrom angeordnet ist.Delivery device, in particular according to claim 1, characterized in that the suction blow nozzle assigned to the thread take-off eyelet (19) is arranged in a baffle wall (20) for the blowing stream emerging from the thread guide tube (9). Liefervorrichtung, insbesondere nach einem oder mehreren der vorhergehenden Ansprüche, gekennzeichnet durch eine Saugblasdüse (32) vor dem einführseitigen Ende des Fadenführungsrohres (9).Delivery device, in particular according to one or more of the preceding claims, characterized by a suction blow nozzle (32) in front of the insertion end of the thread guide tube (9). Liefervorrichtung, insbesondere nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der durch Verschieben in Achsrichtung der Speichertrommel (11) in die Spaltstellung zu dieser bringbare Bremsring (26) einstellbar auf einem Verschiebeschlitten (24) sitzt.Delivery device, in particular according to one or more of the preceding claims, characterized in that the brake ring (26) which can be brought into the gap position by moving it in the axial direction of the storage drum (11) is seated on a sliding carriage (24). Liefervorrichtung, insbesondere nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Mündungsende (10) des Fadenführungsrohres (9) in Achsrichtung der Speichertrommel (11) abgebogen ist.Delivery device, in particular according to one or more of the preceding claims, characterized in that the mouth end (10) of the thread guide tube (9) is bent in the axial direction of the storage drum (11). Liefervorrichtung, insbesondere nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Mündungsende (61) des Fadenführungsrohres (9) in einen in Achsrichtung verlaufenden Umlenkkanal 62 gerichtet ist.Delivery device, in particular according to one or more of the preceding claims, characterized in that the mouth end (61) of the thread guide tube (9) is directed into a deflection channel 62 running in the axial direction. Liefervorrichtung, insbesondere nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß dem Ringspalt (43) der Saugblasdüsen (19, 32) eine Ringkammer (44) vorgeordnet ist, in deren ringspaltseitiger Wand (45) ein Kranz von Luftdurchtrittslöchern (46) vorgesehen ist.Delivery device, in particular according to one or more of the preceding claims, characterized in that the annular gap (43) of the suction blowing nozzles (19, 32) is preceded by an annular chamber (44), in the annular wall (45) of which there is provided a ring of air passage holes (46) is. Liefervorrichtung, insbesondere nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß den Zuleitungen (47, 51) beider Saugblasdüsen (19, 32) ein gemeinsames Ventil (52) zugeordnet ist.Delivery device, in particular according to one or more of the preceding claims, characterized in that the feed lines (47, 51) of both suction blowing nozzles (19, 32) are assigned a common valve (52). Liefervorrichtung, insbesondere nach einem oder mehreren der vorhergehenden Ansprüche, gekennzeichnet durch ein parallel zur Saugblasdüsen-Versorgung gesteuertes Zu- und Abstellen des Bremsringes (26).Delivery device, in particular according to one or more of the preceding claims, characterized by a switching in and out of the brake ring (26) controlled in parallel to the suction blowing nozzle supply. Liefervorrichtung, insbesondere nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Bremsring (26) mittels eines Druckluftzylinders (22) abgestellt und durch Federkraft wieder zurückgestellt ist.Delivery device, in particular according to one or more of the preceding claims, characterized in that the brake ring (26) is switched off by means of a compressed air cylinder (22) and is set back again by spring force. Liefervorrichtung, insbesondere nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Prallwand (20) an einem den Verschiebeschlitten (24) des Bremsringes (26) lagernden oberen Ausleger (21) sitzt.Delivery device, in particular according to one or more of the preceding claims, characterized in that the baffle (20) is seated on an upper arm (21) which supports the sliding carriage (24) of the brake ring (26). Liefervorrichtung, insbesondere nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Borsten (30) entsprechend der Mantelfläche (M) des Kopfkegels (16) ausgerichtet sind.Delivery device, in particular according to one or more of the preceding claims, characterized in that the bristles (30) are aligned in accordance with the lateral surface (M) of the head cone (16). Liefervorrichtung, insbesondere nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Einstellbarkeit des Bremsringes (26) zum Verschiebeschlitten (24) aus einer vom Kopfende her zugänglichen Stellschraube (27) besteht.Delivery device, in particular according to one or more of the preceding claims, characterized in that the adjustability of the brake ring (26) to the sliding carriage (24) consists of an adjusting screw (27) accessible from the head end. Liefervorrichtung, insbesondere nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Mantelfläche des Kopfkegels (16) zumindest über den hinter der Prallwand (20) liegenden Mantelflächenbereich (M) in geradliniger Erstreckung von der Basiskante (B) bis zur Kegelspitze (17) verläuft.Delivery device, in particular according to one or more of the preceding claims, characterized in that the lateral surface of the head cone (16) extends in a straight line from the base edge (B) to the cone tip (17) at least over the lateral surface area (M) located behind the baffle wall (20) ) runs. Liefervorrichtung, insbesondere nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Luftversorgung beider Saugblasdüsen (19, 32) etwa gleich ist.Delivery device, in particular according to one or more of the preceding claims, characterized in that the air supply to both suction blowing nozzles (19, 32) is approximately the same.
EP90123730A 1990-03-07 1990-12-10 Yarn delivering device Expired - Lifetime EP0446447B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP94116058A EP0659918B1 (en) 1990-03-07 1990-12-10 Yarn delivering device
EP94119612A EP0657379A2 (en) 1990-03-07 1990-12-10 Yarn delivering device
DE9018101U DE9018101U1 (en) 1990-03-07 1990-12-10 Delivery device for running threads

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4007131 1990-03-07
DE4007131A DE4007131C2 (en) 1990-03-07 1990-03-07 Delivery device for running threads

Related Child Applications (3)

Application Number Title Priority Date Filing Date
EP94119612.3 Division-Into 1990-12-10
EP94116058A Division EP0659918B1 (en) 1990-03-07 1990-12-10 Yarn delivering device
EP94116058.2 Division-Into 1990-12-10

Publications (3)

Publication Number Publication Date
EP0446447A1 true EP0446447A1 (en) 1991-09-18
EP0446447B1 EP0446447B1 (en) 1995-07-05
EP0446447B2 EP0446447B2 (en) 2000-11-22

Family

ID=6401592

Family Applications (3)

Application Number Title Priority Date Filing Date
EP90123730A Expired - Lifetime EP0446447B2 (en) 1990-03-07 1990-12-10 Yarn delivering device
EP94119612A Withdrawn EP0657379A2 (en) 1990-03-07 1990-12-10 Yarn delivering device
EP94116058A Expired - Lifetime EP0659918B1 (en) 1990-03-07 1990-12-10 Yarn delivering device

Family Applications After (2)

Application Number Title Priority Date Filing Date
EP94119612A Withdrawn EP0657379A2 (en) 1990-03-07 1990-12-10 Yarn delivering device
EP94116058A Expired - Lifetime EP0659918B1 (en) 1990-03-07 1990-12-10 Yarn delivering device

Country Status (9)

Country Link
US (1) US5181544A (en)
EP (3) EP0446447B2 (en)
JP (1) JP3021712B2 (en)
CN (1) CN1026424C (en)
AT (2) ATE124732T1 (en)
BR (1) BR9100911A (en)
CZ (1) CZ281399B6 (en)
DE (3) DE4007131C2 (en)
ES (1) ES2074112T3 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993006277A1 (en) * 1991-09-19 1993-04-01 Roj Electrotex S.P.A. Weft feeder for gripper and projectile looms
EP0567045A1 (en) * 1992-04-22 1993-10-27 L.G.L. ELECTRONICS S.p.A. Electropneumatic device for the automatic threading of apparatuses for feeding weft to textile machines and a weft feeding apparatus including said device
WO1995028348A1 (en) * 1994-04-13 1995-10-26 Sobrevin Soc. De Brevets Industriels-Etablissement Thread store with thread draw-off brake
US5546994A (en) * 1994-10-14 1996-08-20 Sobrevin Societe De Brevets Industriels-Etablissement Thread storage drum with frustoconical brake strip
EP0754645A1 (en) * 1995-07-18 1997-01-22 L.G.L. ELECTRONICS S.p.A. Electropneumatic device for the automatic treading of weft feeders and weft feeder including said device
WO1997003907A1 (en) * 1995-07-24 1997-02-06 Iro Ab Thread feed
WO1997034035A1 (en) * 1996-03-13 1997-09-18 Iro Ab Thread-delivery apparatus
EP0826619A1 (en) * 1996-09-03 1998-03-04 L.G.L. Electronics S.p.A. Quick-release retainer for the brake support of weft feeders for textile machines
EP0939156A3 (en) * 1998-02-26 2001-05-16 L.G.L. Electronics S.p.A. Method and device for the pneumatic threading of textile machine weft feeders

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9117045U1 (en) * 1991-06-18 1995-05-11 Iro Ab, Ulricehamn Thread storage and delivery device
IT1258241B (en) * 1992-11-05 1996-02-22 WEFT FEEDER
IT1263623B (en) * 1993-02-23 1996-08-27 Roj Electrotex Nuova Srl WIRE FEEDER
SE508469C2 (en) * 1993-04-21 1998-10-12 Sipra Patent Beteiligung Yarn feeder device in a textile machine and method for using yarn feeder device
DE9307967U1 (en) * 1993-05-26 1994-10-06 Palitex Project-Company GmbH, 47804 Krefeld Double-wire twisting spindle
TW286331B (en) * 1994-03-03 1996-09-21 Micron Instr
RU2129089C1 (en) * 1995-07-24 1999-04-20 Иро Аб Thread feeder
DE19533547A1 (en) * 1995-09-11 1997-03-13 Iro Ab Pneumatic valve device for a thread delivery device and thread delivery device
DE10107688A1 (en) * 2001-02-19 2002-08-29 Iro Patent Ag Baar Yarn feeder
ITTO20020023U1 (en) * 2002-02-01 2003-08-01 Lgl Electronics Spa ,, BRAKE HOLDER HOLDER RETAINING DEVICE IN WEFT FEEDING DEVICES ,,
DE10358283A1 (en) * 2003-12-12 2005-07-21 Iro Ab Thread measuring feeder
SE0400861D0 (en) * 2004-04-01 2004-04-01 Iropa Ag Yarn feeding device
CN102634913A (en) * 2012-04-06 2012-08-15 经纬纺织机械股份有限公司 Weft storage device without twist change
IT201800007866A1 (en) * 2018-08-06 2020-02-06 Lgl Electronics Spa WEFT BRAKE DEVICE FOR ACCUMULATION YARN FEEDERS
CZ2019389A3 (en) * 2019-06-19 2020-12-30 Rieter Cz S.R.O. Equipment for sucking and transporting yarn for arranging on the service robot of a textile machine for yarn production, a service robot for operating a textile machine workplace and a textile machine
CN112553764A (en) * 2020-12-01 2021-03-26 张家港市凯利雅特种纺织纱线有限公司 Spandex yarn conveying device
CN112609299B (en) * 2020-12-10 2022-08-19 青岛村田机械制造有限公司 Textile weft storing device capable of avoiding weft breakage or weft leakage at weft storing device during operation
CN114000246B (en) * 2021-11-30 2022-11-29 嵊州市三凌动力科技有限公司 Triangular pressing sheet for weft accumulator and manufacturing method thereof
CN119160714B (en) * 2024-11-22 2025-03-18 山东明福染业有限公司 A yarn collecting device for plant dyeing

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2072829A5 (en) * 1969-12-04 1971-09-24 Snia Viscosa
EP0049897A1 (en) * 1980-10-15 1982-04-21 ROJ ELECTROTEX S.p.A. Yarn braking means for yarn feeding devices
DE3734284A1 (en) * 1987-09-25 1989-04-13 Iro Ab Thread storage and delivery apparatus
EP0355281A1 (en) * 1988-07-14 1990-02-28 Nissan Motor Co., Ltd. Weft threading system for fluid jet loom

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5016680A (en) * 1989-03-03 1991-05-21 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Weft processing and releasing apparatus in a jet loom
IT1236993B (en) * 1989-12-29 1993-05-12 Roy Electrotex Spa WEFT FEEDER FOR WEAVING FRAMES WITH PLIERS AND BULLETS
FR2978758B1 (en) 2011-08-02 2013-08-02 Saint Gobain GLASS FLOATING SPEAKER

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2072829A5 (en) * 1969-12-04 1971-09-24 Snia Viscosa
EP0049897A1 (en) * 1980-10-15 1982-04-21 ROJ ELECTROTEX S.p.A. Yarn braking means for yarn feeding devices
DE3734284A1 (en) * 1987-09-25 1989-04-13 Iro Ab Thread storage and delivery apparatus
EP0355281A1 (en) * 1988-07-14 1990-02-28 Nissan Motor Co., Ltd. Weft threading system for fluid jet loom

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993006277A1 (en) * 1991-09-19 1993-04-01 Roj Electrotex S.P.A. Weft feeder for gripper and projectile looms
EP0567045A1 (en) * 1992-04-22 1993-10-27 L.G.L. ELECTRONICS S.p.A. Electropneumatic device for the automatic threading of apparatuses for feeding weft to textile machines and a weft feeding apparatus including said device
US5351724A (en) * 1992-04-22 1994-10-04 L.G.L. Elettronica S.P.A. Electropneumatic device for the automatic threading of a weft feeding apparatus
WO1995028348A1 (en) * 1994-04-13 1995-10-26 Sobrevin Soc. De Brevets Industriels-Etablissement Thread store with thread draw-off brake
US5546994A (en) * 1994-10-14 1996-08-20 Sobrevin Societe De Brevets Industriels-Etablissement Thread storage drum with frustoconical brake strip
EP0754645A1 (en) * 1995-07-18 1997-01-22 L.G.L. ELECTRONICS S.p.A. Electropneumatic device for the automatic treading of weft feeders and weft feeder including said device
WO1997003907A1 (en) * 1995-07-24 1997-02-06 Iro Ab Thread feed
US6082654A (en) * 1995-07-24 2000-07-04 Iro Ab Yarn feeder
CN1079364C (en) * 1995-07-24 2002-02-20 Iro有限公司 yarn guide
WO1997034035A1 (en) * 1996-03-13 1997-09-18 Iro Ab Thread-delivery apparatus
US6095199A (en) * 1996-03-13 2000-08-01 Iro Ab Yarn feeder including an adjustable carrier ring for varying braking effects
EP0826619A1 (en) * 1996-09-03 1998-03-04 L.G.L. Electronics S.p.A. Quick-release retainer for the brake support of weft feeders for textile machines
EP0939156A3 (en) * 1998-02-26 2001-05-16 L.G.L. Electronics S.p.A. Method and device for the pneumatic threading of textile machine weft feeders

Also Published As

Publication number Publication date
EP0659918A2 (en) 1995-06-28
CS9100584A2 (en) 1991-09-15
DE59009377D1 (en) 1995-08-10
ATE124732T1 (en) 1995-07-15
US5181544A (en) 1993-01-26
DE4007131A1 (en) 1991-09-12
DE4007131C2 (en) 1999-12-30
JP3021712B2 (en) 2000-03-15
EP0446447B1 (en) 1995-07-05
CZ281399B6 (en) 1996-09-11
EP0659918B1 (en) 2003-10-29
CN1026424C (en) 1994-11-02
EP0446447B2 (en) 2000-11-22
JPH04213561A (en) 1992-08-04
ATE253134T1 (en) 2003-11-15
DE59010936D1 (en) 2003-12-04
BR9100911A (en) 1991-11-05
EP0659918A3 (en) 1997-11-19
ES2074112T3 (en) 1995-09-01
CN1054624A (en) 1991-09-18
EP0657379A2 (en) 1995-06-14

Similar Documents

Publication Publication Date Title
EP0446447B1 (en) Yarn delivering device
DE3876629T2 (en) THREAD STORAGE AND DELIVERY DEVICE.
WO2008095631A1 (en) Jet spinning apparatus
CH682913A5 (en) Method and apparatus for preparing items to be spleissender yarn ends.
EP0365472B1 (en) Device for threading a thread in a loom
DE3118873C2 (en) Two-for-one twisting spindle
DE2758064B2 (en) Method and device for eliminating an irregularity in the thread at a spinning station of an open-end spinning device
DE3025068A1 (en) DEVICE FOR FEEDING TEXTILE TAPE MATERIAL TO A CONSUMER
EP0527355A1 (en) Method and apparatus for pneumatically inserting sliver in a spinning machine
DE3734284A1 (en) Thread storage and delivery apparatus
EP0822276B1 (en) Device for controlling the air stream in a open-end spinning device
CH673024A5 (en)
DE4000856A1 (en) THREAD CUTTING THREAD CUTTER DEVICE OF AN AIR WAVING MACHINE
CH652994A5 (en) METHOD AND WINDING MACHINE FOR WINDING A THREADS DELIVERED CONTINUOUSLY WITH HIGH SPEED ON A REEL.
DE9018101U1 (en) Delivery device for running threads
DE1535570B1 (en) Suction channel for forming a loop of a weft thread on weaving machines with removal of the weft thread from stationary bobbins
DE1069044B (en) Twisting device for a draw twister
DE3247288C2 (en) Process for preparing a yarn end for piecing in a spinning rotor of an open-end spinning unit and device for carrying out the process
DE3915608A1 (en) Yarn winding machine - has reel changeover mechanism with scissor motion for fine yarns
DE10150565A1 (en) Preparation station, to prepare a cut yarn end for splicing at an open-end spinner, has an air jet acting on the yarn outside the length returned to the spinning zone and an air jet at a tangent to the cut end
DE4039487C1 (en)
DE1535570C (en) Suction channel for forming a loop of a weft thread on weaving machines with removal of the weft thread from stationary bobbins
EP0294795B1 (en) Method and device for piecing a yarn in a friction-spinning device
DE102006018242A1 (en) Air jet spinning machine has spindle-shaped component which removes yarn from cyclone chamber, wire being mounted inside yarn channel in component and moving with respect to it to clean it
EP0065726A2 (en) Method and apparatus for introducing at least one yarn into a texturing jet

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE

17P Request for examination filed

Effective date: 19910912

17Q First examination report despatched

Effective date: 19930824

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Effective date: 19950705

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19950705

REF Corresponds to:

Ref document number: 124732

Country of ref document: AT

Date of ref document: 19950715

Kind code of ref document: T

XX Miscellaneous (additional remarks)

Free format text: TEILANMELDUNG 94116058.2 EINGEREICHT AM 10/12/90.

ET Fr: translation filed
REF Corresponds to:

Ref document number: 59009377

Country of ref document: DE

Date of ref document: 19950810

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19950720

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2074112

Country of ref document: ES

Kind code of ref document: T3

ITF It: translation for a ep patent filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 19951101

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19951213

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19951230

Year of fee payment: 6

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLBQ Unpublished change to opponent data

Free format text: ORIGINAL CODE: EPIDOS OPPO

26 Opposition filed

Opponent name: IRO AB

Effective date: 19951208

NLR1 Nl: opposition has been filed with the epo

Opponent name: IRO AB

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

RDAH Patent revoked

Free format text: ORIGINAL CODE: EPIDOS REVO

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19961210

Ref country code: AT

Effective date: 19961210

APAC Appeal dossier modified

Free format text: ORIGINAL CODE: EPIDOS NOAPO

APAE Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOS REFNO

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19970701

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19970701

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19971015

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19971218

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 19971230

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19981210

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19981211

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19981210

APAE Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOS REFNO

APAC Appeal dossier modified

Free format text: ORIGINAL CODE: EPIDOS NOAPO

PLAW Interlocutory decision in opposition

Free format text: ORIGINAL CODE: EPIDOS IDOP

PLAW Interlocutory decision in opposition

Free format text: ORIGINAL CODE: EPIDOS IDOP

PUAH Patent maintained in amended form

Free format text: ORIGINAL CODE: 0009272

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT MAINTAINED AS AMENDED

27A Patent maintained in amended form

Effective date: 20001122

AK Designated contracting states

Kind code of ref document: B2

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE

XX Miscellaneous (additional remarks)

Free format text: TEILANMELDUNG 94116058.2 EINGEREICHT AM 10/12/90.

ET3 Fr: translation filed ** decision concerning opposition
REG Reference to a national code

Ref country code: CH

Ref legal event code: AEN

Free format text: AUFRECHTERHALTUNG DES PATENTES IN GEAENDERTER FORM

ITF It: translation for a ep patent filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20010304

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20011220

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20020110

Year of fee payment: 12

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021231

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021231

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030901

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20061205

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20071220

Year of fee payment: 18

BERE Be: lapsed

Owner name: SOC. DE BREVETS INDUSTRIELS-ETABLISSEMENT *SOBREVI

Effective date: 20071231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20071231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19981231

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20100222

Year of fee payment: 20

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20101210

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20081210