EP0383960B1 - Métier à retordre à double torsion - Google Patents

Métier à retordre à double torsion Download PDF

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Publication number
EP0383960B1
EP0383960B1 EP89102813A EP89102813A EP0383960B1 EP 0383960 B1 EP0383960 B1 EP 0383960B1 EP 89102813 A EP89102813 A EP 89102813A EP 89102813 A EP89102813 A EP 89102813A EP 0383960 B1 EP0383960 B1 EP 0383960B1
Authority
EP
European Patent Office
Prior art keywords
thread
ring
twisting machine
balloon limiter
space
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.)
Expired - Lifetime
Application number
EP89102813A
Other languages
German (de)
English (en)
Other versions
EP0383960A1 (fr
Inventor
Johannes Ing. Grad. Frentzel-Beyme
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.)
Palitex Project Co GmbH
Original Assignee
Palitex Project Co GmbH
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 Palitex Project Co GmbH filed Critical Palitex Project Co GmbH
Priority to DE8989102813T priority Critical patent/DE58903236D1/de
Priority to EP89102813A priority patent/EP0383960B1/fr
Priority to US07/467,049 priority patent/US4998405A/en
Priority to JP2027300A priority patent/JPH02242935A/ja
Publication of EP0383960A1 publication Critical patent/EP0383960A1/fr
Application granted granted Critical
Publication of EP0383960B1 publication Critical patent/EP0383960B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H15/00—Piecing arrangements ; Automatic end-finding, e.g. by suction and reverse package rotation; Devices for temporarily storing yarn during piecing
    • D01H15/007—Piecing arrangements ; Automatic end-finding, e.g. by suction and reverse package rotation; Devices for temporarily storing yarn during piecing for two-for-one twisting machines

Definitions

  • the invention relates to a double-wire twisting machine, the twisting spindles of which each have a pneumatic threading device arranged in the region of the spindle axis, by means of which the thread is sucked in by means of an injector action and by means of the compressed air jet upwards through the space between the bobbin case and the balloon limiter, and the one in the area above of the space between the bobbin and balloon limiter attachable pneumatic thread catcher is assigned to Collection and forwarding of the ejected thread.
  • the thread that shoots up when threading between the bobbin and the inner jacket of the balloon limiter must be caught and fed to the other parts of the device, it generally passing through a thread guide eyelet and an advance roller to a traversing thread guide and from there to a take-up spool is guided, which is usually driven by a coil drive roller.
  • a partially or completely automated way of operating the twisting spindles requires a positioned thread. This positioning relates to at least a partial area of the entire circumferential gap. Shortly above the balloon limiter, the threaded thread is then taken over, for example, by appropriately shaped suction nozzles. So that the mechanized threading process is fully functional, the rotor of the twisting spindle must be separated from the drive and then rotated so that the channel outlet on the thread storage disc corresponds to the suction nozzle arranged above the balloon limiter.
  • a double wire twisting machine of the type described in the preamble of claim 1 Type is described for example in DE-C-26 48 621.
  • a longitudinally slotted thread guide tube is arranged above the annular gap between the upper edge of the bobbin case and balloon limiter, in which the thread is introduced by means of a suction flow.
  • This thread guide tube is assigned further means for thread take-up and thread transfer.
  • Double-wire twisting machines are also known, in which the thread is led out of the spindle without the positioning of the spindle rotor at a predetermined point on the spindle circumference above the balloon limiter.
  • a device is described for example in DE-C-27 18 351 and DE-C-24 08 563.
  • an annular shaped piece is arranged on the underside of the turntable of the twisting spindle, which together with the turntable and the thread storage disk delimits an annular chamber which has an outlet opening opening into the gap between the bobbin pot and the balloon limiter.
  • Air guiding surfaces arranged within the shaped piece can either provide for a rotation of the turntable with an additional positioning effect or else for the direct thread line to the predetermined position on the twisting spindle.
  • the invention has for its object to provide a double wire twisting machine of the type initially specified in the preamble of claim 1 with simple structural means such that the thread inserted into the space between the bobbin case and the balloon limiter is caught above the upper annular gap of this space and defined in a defined one Position is brought without the turntable of the spindle must be positioned beforehand.
  • the basic idea of the invention is to arrange a thread catch ring on the upper annular gap of the space between the bobbin and the balloon limiter, which catches the shooting thread and leads it out of the area of the balloon limiter in a defined direction and holds it there.
  • the threaded and held thread can then be continued with other known means for winding the double-wire twisting machine.
  • the thread catching ring can be mobile or fixed to the double-wire twisting spindle.
  • FIG. 1 shows a double-wire twisting spindle which is arranged on a double-wire twisting machine, which is not shown in any more detail.
  • the double-wire twisting spindle has a whorl 1, a turntable 2 with thread storage disk 2.1 and a bobbin 3, in which a hollow mandrel 4 is arranged axially, onto which the bobbins G1 and G2 are placed, and which has a thread inlet tube 7 at its upper end .
  • an injector 5 is arranged in a manner known per se and not shown in detail in such a way that its suction end is connected to the thread inlet pipe 7, while the blowing end opens into a thread outlet channel 6 guided radially through the thread storage disk 2.1, the outlet end of which at the circumference of the thread storage disk 2.1 lies. Furthermore, an air supply channel 6 is connected to the injector 5 in a manner not shown, which is guided through the coil pot 2 on its outer circumference for connection to a compressed air source.
  • the coil pot 3 is surrounded in a known manner by a balloon limiter 8.
  • the threads F1 and F2 are drawn off from the two bobbins G1 and G2, inserted through the thread inlet pipe 7 by means of the injector 5 and led out of the thread outlet channel 6 again. They are then led by the rising air flow through the space between the coil pot 3 and the balloon limiter 8 and finally reach the upper annular gap 8.1, where they are to be collected and positioned.
  • a thread catch ring 9 On the upper edge 8.2 of the balloon limiter 8 is a thread catch ring 9 with its underside in the area the outer circumference 9.1 placed.
  • This thread catch ring 9 can be part of a handling device (not shown further), with the aid of which the threads can then be applied to the further devices of the double-wire twisting machine.
  • the thread catching ring 9 has a closed ring channel 10, with an essentially circular cross section, which has a passage slot 10.1 on its side facing the ring gap 8.1, which slit into another open, likewise ring-shaped entry slot 11 that widens in a funnel shape towards the ring gap 8.1 flows.
  • the ring channel 10 is connected to a radially arranged connecting piece 12 which can be connected via a connecting line 13 to a vacuum source, not shown.
  • the annular channel 10 is designed such that its cross section, starting from the connecting piece 12, extends in both directions along the circumference of the ring down to a diametrically opposite point of the connecting piece 12.
  • the two threads F1 and F2 drawn off from the thread spools G1 and G2 are threaded by means of the injector 5 through the thread inlet tube 7 into the hollow mandrel 4, which they have below through the outlet opening on the circumference of the storage disk 2.1 leave.
  • the ring channel 10 is placed under negative pressure, so that the threads F1 and F2, which are guided upwards in the space between the balloon limiter 8 and the bobbin pot 3, are sucked into the ring channel 10 through the inlet slot 11 and the passage slot 10.1 (arrow direction E).
  • the threads are passed on (arrow direction W) and finally reach the connecting piece 12.
  • Both the injector 5 and the vacuum source connected to the connecting line 13 are now switched off.
  • the thread ends F1 and F2 are positioned in the connecting piece 12 and can be gripped by hand or a corresponding device after removing the thread catch ring 9 in the manner described below (FIGS. 5 and 6).
  • the thread catching ring can also be arranged firmly on the balloon limiter.
  • the ring channel must have a cross section that opens towards the inside of the ring, and the thread ends are grasped and conveyed by means of a suction nozzle.
  • the embodiment according to FIG. 5 shows the twisting point of a double-wire twisting machine 14.
  • the thread-catching ring 9 is designed as a handling device and is placed manually on the balloon limiter 8 of the double-wire twisting spindle by an operator P.
  • the thread catch ring 9 is connected via the connecting piece 12 to a pressure hose 13 leading to the vacuum source (not shown). After positioning the thread ends F1 and F2 in the connecting piece 12 of the thread catching ring 9, this is again manually removed and the thread ends F1 and F2 are pulled out of the connecting piece 12. They can then be fed by hand in a manner known per se through a thread guide eyelet 15 to the schematically indicated winding device 16 of the double-wire twisting machine 14.
  • Fig. 6 shows part of a double-wire twisting machine 14 'with a thread-catching device in which the thread-catching ring 9 with its connecting piece 12 is connected via a line 13 designed as a linkage' to a control unit 17 which can be moved along the double-wire twisting machine.
  • the line 13 ' is connected via a connecting hose 17.2 to a vacuum source arranged in the operating unit 17.
  • the linkage 13 ' is connected to an extendable articulated arm 17.1.
  • the thread catch ring 9 is shown in solid lines in the position placed on the upper edge of the balloon limiter 8. From this position it can be pivoted into a raised position indicated by dashed lines by means of the articulated lever arm 17.1.
  • the thread that is threaded through is collected and introduced into the connecting piece 12.
  • the thread catch ring 9 including the feed lines is then pivoted upwards and additionally moved in the direction of the bobbin frame of the winding device 16 '.
  • the guide plane of the thread catching ring 9 with the sucked-in thread ends is chosen so that the two thread ends during the final pivoting movement between the bobbin tube 16.1 ' and centering plate 16.2 'of the winding device 16' are clamped. After resetting the self-threading balloon thread guide 15 'the thread can start again.
  • Fig. 7 an embodiment of a thread catching device is shown, in which the thread catching ring 9 'is arranged stationary and is firmly connected to the balloon limiter 8.
  • the thread catch ring 9 ' is somewhat different in that the ring channel 10' via the inlet slot 11 'does not open downwards, but to the inside of the thread catch ring 9'.
  • the thread catch ring 9 is placed with its underside in the area of the inner circumference 9.2 '.
  • the thread ends F1 and F2 are caught in the manner already described by the thread catching ring 9 'and passed on in the ring channel 10' into the connecting piece 12 '.
  • the generation of the negative pressure in the annular channel 10 ' takes place in this embodiment by an injector 18 arranged in the connecting piece 12', the lateral connecting piece 12.1 'is connected to the vacuum source, not shown.
  • the special design of the thread catch ring 9 ' ensures that the annular gap 8.1 for the suction nozzle 20 even when the thread catch ring is attached 9 'is accessible. In this way, the thread ends F1 and F2 can be conveyed without removing the thread catch ring 9 '.
  • the suction port 20 is part of a conveyor device, not shown. It can be moved from the position shown in solid lines in FIG. 7 to elevated positions, one of which is indicated by dashed lines. The thread ends can then be clamped between the sleeve and centering plate of the winding device, not shown, for example in the manner described with reference to FIG. 6.
  • this device for further conveying the thread ends can be designed in a known manner, for example, as described in DE-C 24 26 724 or DE-C 26 48 621. So that a fitted thread length is guided into the winding area, a cutting device 19 is provided on the connecting piece 12 ', which cuts the thread ends. It has a cutting tool 19.2 which can be actuated via a compressed air cylinder 19.1. The cutting process is initiated when the injector 18 reports that the two thread ends have been taken over.
  • Such a cutting device can of course also be provided in the embodiment described with reference to FIG. 6.

Claims (6)

  1. Retordoir à double-torsion dont les broches de retordage présentent chacune un dispositif d'enfilage pneumatique (5) placé dans la zone de leur axe, par lequel le fil (F1, F2) est aspiré par action d'injecteur et, au moyen du jet d'air comprimé, expulsé vers le haut par l'intervalle entre le pot à enroulements (3) et le limiteur de ballon (8), et auquel est associé un dispositif pneumatique de saisie de fil (9, 9') pouvant être mis dans la zone située au-dessus de l'intervalle entre le pot à enroulements (3) et le limiteur de ballon (8), pour la saisie et la transmission du fil expulsé, caractérisée par le fait que le dispositif de saisie de fil présente un anneau de saisie de fil (9, 9') placé à l'interstice annulaire supérieur (8.1) de l'intervalle entre le pot à enroulements (3) et le limiteur de ballon (8) ou pouvant être posé sur celui-ci et qui présente à l'intérieur un canal annulaire fermé (10, 10'), à section (11, 11') ouverte vers l'interstice annulaire (8.1), qui peut être relié à une source de dépression par une tubulure de raccordement (12, 12') dirigée radialement vers l'extérieur.
  2. Retordoir à double-torsion selon la revendication 1, caractérisée par le fait que le canal annulaire (10,  10') est de section sensiblement circulaire et communique avec une fente annulaire d'entrée (11, 11') s'ouvrant sur le côté inférieur ou sur le côté intérieur de l'anneau vers l'interstice annulaire (8.1).
  3. Retordoir à double-torsion selon l'une des revendications 1 et 2, caractérisée par le fait qu'un anneau de saisie de fil (9') placé fixe à l'interstice annulaire supérieur (8.1) de l'intervalle entre le pot à enroulements (3) et le limiteur de ballon (8), et dont le canal annulaire (10') a une section (11') s'ouvrant vers le côté intérieur de l'anneau, coopère avec une tubulure d'aspiration (20) placée sur le côté intérieur de l'anneau dans la zone de la tubulure de raccordement (12') pour l'amenée du fil dans la zone de renvidage du retordoir à double-torsion.
  4. Retordoir à double-torsion selon l'une des revendications 1 et 2, caractérisée par le fait qu'un anneau de saisie de fil (9) pouvant être posé sur l'interstice annulaire supérieur (8.1) de l'intervalle entre le pot à enroulements (3) et le limiteur de ballon (8) fait partie d'un appareil de manipulation pouvant être déplacé manuellement par rapport au retordoir à double-torsion.
  5. Retordoir à double-torsion selon l'une des revendications 1 et 2, caractérisée par le fait qu'un anneau de saisie de fil (9) pouvant être posé sur l'interstice annulaire supérieur (8.1) de l'intervalle entre le pot à enroulements (3) et le limiteur de ballon (8) fait partie d'un bloc de commande automatique ou semi-automatique (17) déplaçable le long du retordoir à double-torsion et sur lequel il est monté basculant.
  6. Retordoir à double-torsion selon l'une des revendications 1 à 5, caractérisée par le fait que la section du canal annulaire (10) diminue à partir de la tubulure de raccordement (12) le long de la circonférence de l'anneau dans les deux sens jusqu'à un endroit diamétralement opposé à la tubulure de raccordement (12) de façon telle qu'à tous les endroits de la circonférence de l'interstice annulaire (8.1) soit produite sensiblement la même force d'aspiration.
EP89102813A 1989-02-18 1989-02-18 Métier à retordre à double torsion Expired - Lifetime EP0383960B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE8989102813T DE58903236D1 (de) 1989-02-18 1989-02-18 Doppeldraht-zwirnmaschine.
EP89102813A EP0383960B1 (fr) 1989-02-18 1989-02-18 Métier à retordre à double torsion
US07/467,049 US4998405A (en) 1989-02-18 1990-01-18 Two-for-one twisting machine
JP2027300A JPH02242935A (ja) 1989-02-18 1990-02-08 二重撚糸機

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP89102813A EP0383960B1 (fr) 1989-02-18 1989-02-18 Métier à retordre à double torsion

Publications (2)

Publication Number Publication Date
EP0383960A1 EP0383960A1 (fr) 1990-08-29
EP0383960B1 true EP0383960B1 (fr) 1993-01-07

Family

ID=8200977

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89102813A Expired - Lifetime EP0383960B1 (fr) 1989-02-18 1989-02-18 Métier à retordre à double torsion

Country Status (4)

Country Link
US (1) US4998405A (fr)
EP (1) EP0383960B1 (fr)
JP (1) JPH02242935A (fr)
DE (1) DE58903236D1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5189872A (en) * 1989-03-17 1993-03-02 Murata Kikai Kabushiki Kaisha Processing robot for a two-for-one twister
US5526634A (en) * 1990-10-23 1996-06-18 Murata Kikai Kabushiki Kaisha Robot device for piled-package type double twister
IT1248002B (it) * 1991-06-06 1995-01-05 Savio Spa Metodo per l'infilaggio pneumatico in un fuso a doppio perno cavo di un ritorcitoio
IT1250757B (it) * 1991-08-02 1995-04-21 Savio Spa Metodo perfezionato per l'infilaggio pneumatico in un ritorcitoio con un fuso a doppio perno cavo
CN106835391B (zh) * 2017-03-28 2022-07-01 天津商业大学 一种兔毛毛条加捻装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2648621C3 (de) * 1976-10-27 1981-11-26 Palitex Project-Company Gmbh, 4150 Krefeld Doppeldraht-Zwirnmaschine
IT1195894B (it) * 1979-09-24 1988-10-27 Savio Spa Introduttore automatico per fusi a doppia torsione e fusi a doppia torsione adottanti detto introduttore
DE3020726C2 (de) * 1980-05-31 1983-08-18 Schubert & Salzer Maschinenfabrik Ag, 8070 Ingolstadt Vorrichtung zum Anspinnen eines Umwindegarnes
DE3543650A1 (de) * 1985-12-11 1987-06-19 Palitex Project Co Gmbh Doppeldraht-zwirnspindel
DE3721364A1 (de) * 1987-06-29 1989-01-19 Palitex Project Co Gmbh Spindelrotor als teil einer vorrichtung zum herstellen eines garnes oder zwirnes und mit einem solchen spingelrotor ausgeruestete doppeldraht-zwirnspindel

Also Published As

Publication number Publication date
DE58903236D1 (de) 1993-02-18
JPH02242935A (ja) 1990-09-27
EP0383960A1 (fr) 1990-08-29
US4998405A (en) 1991-03-12

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