EP0866155B1 - Procédé et dispositif pour le contrôle de la formation de la foule d'enverjure sur un ourdissoir - Google Patents

Procédé et dispositif pour le contrôle de la formation de la foule d'enverjure sur un ourdissoir Download PDF

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Publication number
EP0866155B1
EP0866155B1 EP98810081A EP98810081A EP0866155B1 EP 0866155 B1 EP0866155 B1 EP 0866155B1 EP 98810081 A EP98810081 A EP 98810081A EP 98810081 A EP98810081 A EP 98810081A EP 0866155 B1 EP0866155 B1 EP 0866155B1
Authority
EP
European Patent Office
Prior art keywords
yarn
shed
fork
catching
holder
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
EP98810081A
Other languages
German (de)
English (en)
Other versions
EP0866155A1 (fr
Inventor
Guido Bommer
Markus Beerli
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.)
Benninger AG Maschinenfabrik
Original Assignee
Benninger AG Maschinenfabrik
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 Benninger AG Maschinenfabrik filed Critical Benninger AG Maschinenfabrik
Publication of EP0866155A1 publication Critical patent/EP0866155A1/fr
Application granted granted Critical
Publication of EP0866155B1 publication Critical patent/EP0866155B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02H—WARPING, BEAMING OR LEASING
    • D02H9/00—Leasing

Definitions

  • the invention relates to a method and an apparatus for Check the sub-compartment formation on a warping machine according to the preamble of claim 1 or of claim 3.
  • Die Thread division on a warping machine is known to Crosshairs to form, which later the processing the individual warp threads. Also for finishing of the warp threads must be inserted so that sub-elements the warp threads safely after leaving the sizing bath can be separated.
  • a manipulator-guided Thread separation rod inserted in the thread compartment to prevent that slack or clinging threads the automatic Partial cord entry can hinder. Even the partial cord itself but is introduced with a drawstring rod.
  • the thread sensor is preferably motorized together with a driven element feeder inserted into the compartment, whose drive can be switched off by the control signal and / or is reversible. In this way there is none for the sensor separate gearbox and no separate drive device required. By switching off and / or reversing the Drive for the element feeder is prevented incorrectly stretched threads due to a further feed can tear.
  • the thread sensor is advantageously a tactile sensor that points to Touch with a thread reacts, being a predeterminable Thread tension and thus a predeterminable response resistance can be adjusted.
  • the tactile sensor has that Advantage that it is not very sensitive to environmental factors Disturbances and that even fine threads can be easily determined to let. Of course, it would also be a contactless one Sensor conceivable with optical, electromagnetic or works with other physical effects.
  • a particularly safe way of working the thread sensor can be achieved if this has a catch fork, the Define the fork leg a specific catch area in the compartment.
  • the catch fork ensures a clear positioning a fault thread on the sensor and at the same time with the Fork legs define a catch area that is essential is wider than the actual action area of the Sensors.
  • the catch fork can be designed like a shovel and it can have fork legs that act as wings are formed, which are from a base surface extend, the width of which is smaller than the width of the Fork opening.
  • the V-shaped or U-shaped arrangement of the Fork leg also causes when the element feeder is pulled back a safe rejection of the partial thread associations after inserting the sub-element.
  • the catch fork is preferably under spring tension a holder movably mounted, a switching element on the holder is arranged by the catch fork when detecting a thread in the catch area by relative movement to the holder can be actuated.
  • the spring preload can be used to Adjust the sensitivity of the sensor using the switching element only responds when a certain relative movement was covered.
  • the switching element is advantageously a Proximity switch, as this is in the dust-laden environment a warping machine is not very susceptible to contamination.
  • the Switching element could also be a microswitch, an optical or piezoelectric switching element or the like his.
  • the catch fork is advantageous about an approximately vertical axis pivoted on the holder and supported by a holder Spring, e.g. a compression spring biased. To the vertical axis can be adjusted depending on the design of the catch fork generate a leverage and it is contrary to a linear guidance of the safety fork does not pose a risk Tilting or jamming.
  • Operational safety can also be increased by the fact that on an approximately horizontal plane, two sensors at a distance are arranged to each other. Since the individual threads one Thread section not run parallel to each other, but diverge towards the gate, there must also be error threads can be determined in any possible inclined position are arranged. When arranging two sensors becomes at least one of the two sensors depending on the inclined position always address the fault line.
  • the sensors with catch forks are advantageously mounted on the holder so that they counter to the bias of their respective spring are pivotable.
  • FIG. 1 shows a warping machine 1 which is known per se, such as, for example, in EP-A-368801 mentioned at the beginning is described.
  • the operating state of the is shown Machine when inserting a crosshair element. It is a thread assembly drawn off from a gate, not shown 10 passed through a bar grate 2.
  • Sticks 3 By means of pushed together Sticks 3 is the thread behind the Bar grating 2 brought together on one level.
  • the two reading sheets 4, 4 ' are shifted against each other and thus open a partial compartment 15, which is delimited by an upper partial thread association 11 and a lower thread part dressing 12.
  • This Thread sub-associations pass through the warping blade 5, which for Introducing a partial element with the help of the laterally arranged Sub-device 7 has been pushed back.
  • the warping blade 5 is in a known manner on a warping slide 8 arranged parallel and radial to one Warping drum 6 is displaceable and a deflection roller 9 wearing.
  • the warping carriage also carries the sub-device 7, in this way always at the same lateral relative distance is arranged to the partial thread associations.
  • At the A partial device can be an upper and a lower element feeder 13, 14 are extended.
  • the lower element feeder 13 always penetrates into the open compartment 15.
  • the upper element feeder can on the lower element feeder be lowered.
  • Figure 3 shows a hint of the lower one described above Element feeder 13 in the direction of arrow a in the open Tray 15 is introduced.
  • the upper thread part dressing 11 and the lower thread part dressing 12 are again indicated.
  • an error thread 34 for example would be assigned to the upper thread section 11, the however, due to a malfunction across the open Tray 15 runs.
  • the one according to the invention Device arranged at the head of the element feeder 13 .
  • This consists of a holder 25 its end face at a distance from each other two thread sensors 18, 18 'are arranged.
  • the thread sensors or theirs associated catch forks 19 (FIG. 4) define a catch area 20, which is indicated by dash-dotted lines.
  • the fault thread 34 crossing this catch area thus becomes detected by the sensor 18 ', the one described below Way a control signal is generated.
  • This control signal causes the feed to switch off immediately and it releases an alarm signal with which an operator is summoned can be. After fixing the error, the Automatic operation can be continued normally.
  • the holder 25 is formed as an approximately cuboid body, which with the help of two fastening screws 26, 26 'with the element feeder 13 is screwed.
  • the two as catch forks 19, 19 ' trained sensors are each about a vertical pivot axis 28, 28 'mounted in the direction of arrow b on the holder 25.
  • Each catch fork 19 has two fork legs 21, 21 ', the a base surface 22 opening outwards.
  • the Fork legs form tapered wings, such as in particular can be seen from Figure 6. In the top view it is Catch fork designed like a shovel or a ploughshare.
  • On the base surface 22 are screw holes 24 for attachment arranged on a bearing element 27. In the base area 22 a larger opening 23 is also arranged through which the screws 26, 26 'are tightened or loosened can.
  • the two catch forks are pivoted in opposite directions and one each arranged at a distance from the pivot axis Compression spring 30 biased.
  • the biased position is indicated by a broken line. Every compression spring is supported in a hole in the holder 25.
  • a proximity switch on each outside of the holder 25 29 attached such that it is in the effective range of the outer end 31 of a catch fork. Any proximity switch generates a control signal as soon as a catch fork 19 is pivoted by striking an error thread and the outer end 31 approaches the proximity switch.
  • Each catch fork 19 is connected to a bearing element 27, that in a cavity 33 open at the end in the holder 25 is stored.
  • the bearing element 27 is also used for Mass balancing by forming a balancing mass 32, which compensates for the inertia acting in the direction of arrow b.
  • a balancing mass 32 which compensates for the inertia acting in the direction of arrow b.
  • sensors on different horizontal Layers can be arranged.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Warping, Beaming, Or Leasing (AREA)

Claims (13)

  1. Procédé pour contrôler la formation de la foule d'enverjure sur un ourdissoir (1), selon lequel pour mettre en place un élément séparateur (16) destiné à délimiter des nappes de fils (11, 12), on tend une nappe de fils (10) pour former une foule (15), caractérisé en ce que, avant de mettre en place l'élément séparateur (16), on introduit dans la foule tendue (15) au moins un capteur de fil (18, 18') transversalement par rapport au sens de déroulement de la nappe de fils (10), lequel capteur génère un signal de commande s'il détecte un fil (34) dans sa zone d'avance (20).
  2. Procédé selon la revendication 1, caractérisé en ce que le capteur de fil (18, 18') est introduit dans la foule (15) avec un organe d'amenée d'élément (13) entraíné par moteur, dont l'entraínement est apte à être arrêté et/ou inversé par le signal de commande.
  3. Dispositif pour contrôler la formation de la foule d'enverjure sur un ourdissoir (1), avec lequel, pour mettre en place un élément séparateur (16) destiné à délimiter des nappes de fils (11, 12), une nappe de fils (10) est apte à être tendue pour former une foule (15), caractérisé par au moins un capteur de fil (18, 18') qui est apte à être introduit dans la foule tendue (15) transversalement par rapport au sens de déroulement de la nappe de fils (10), lequel capteur est apte à générer un signal de commande s'il détecte un fil (34) dans sa zone d'avance (20).
  4. Dispositif selon la revendication 3, caractérisé en ce que le capteur de fil (18, 18'), si on considère le sens d'avance, est disposé sur la tête d'un organe d'amenée d'élément (13) entraíné par moteur dont l'entraínement est apte à être arrêté et/ou inversé par le signal de commande.
  5. Dispositif selon la revendication 3 ou 4,
    caractérisé en ce que le capteur de fil (18, 18') est un capteur tactile qui peut être adapté à une tension de fil apte à être prédéfinie.
  6. Dispositif selon la revendication 5, caractérisé en ce que le capteur de fil (18, 18') comporte une fourche d'interception (19) dont les branches (21, 21') forment une zone d'interception définie (20) dans la foule (15).
  7. Dispositif selon la revendication 6, caractérisé en ce que la fourche d'interception (19) a la forme d'une pelle et en ce que ses branches (21, 21') sont des ailes qui partent d'une surface de base (22) dont la largeur est inférieure à la largeur de l'ouverture de fourche.
  8. Dispositif selon la revendication 6 ou 7,
    caractérisé en ce que la fourche d'interception (19) est montée pour être mobile sur un support (25), avec une contrainte de ressort, et en ce qu'il est prévu sur le support un élément de commutation (29) qui est apte à être actionné par la fourche d'interception lorsque celle-ci détecte un fil (34) dans la zone d'interception (20), grâce à un mouvement relatif par rapport au support.
  9. Dispositif selon la revendication 8, caractérisé en ce que l'élément de commutation (29) est un détecteur de proximité.
  10. Dispositif selon la revendication 8 ou 9,
    caractérisé en ce que la fourche d'interception (19) est montée sur le support (25) de manière à pouvoir pivoter autour d'un axe (28) à peu près vertical, et est contrainte par un ressort (30) en appui sur le support.
  11. Dispositif selon la revendication 10, caractérisé en ce que la fourche d'interception (19) est pourvue d'une masse d'équilibrage (32) qui est disposée par rapport à l'axe de pivotement vertical (28) de telle sorte qu'une accélération d'avance du support (25) ne produise pas, sur la fourche d'interception, de couple de torsion qui surmonte la contrainte de ressort.
  12. Dispositif selon l'une des revendications 3 à 11, caractérisé en ce que deux capteurs (18, 18') espacés l'un de l'autre sont disposés sur un plan à peu près horizontal.
  13. Dispositif selon la revendication 10 ou 11 et selon la revendication 12, caractérisé en ce qu'il est prévu, montées sur le support (25), deux fourches d'interception (19, 19') qui sont aptes à pivoter en sens inverse, à l'encontre de la contrainte de leurs ressorts respectifs.
EP98810081A 1997-03-14 1998-02-04 Procédé et dispositif pour le contrôle de la formation de la foule d'enverjure sur un ourdissoir Expired - Lifetime EP0866155B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH61997 1997-03-14
CH61997 1997-03-14
CH619/97 1997-03-14

Publications (2)

Publication Number Publication Date
EP0866155A1 EP0866155A1 (fr) 1998-09-23
EP0866155B1 true EP0866155B1 (fr) 2001-11-07

Family

ID=4191226

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98810081A Expired - Lifetime EP0866155B1 (fr) 1997-03-14 1998-02-04 Procédé et dispositif pour le contrôle de la formation de la foule d'enverjure sur un ourdissoir

Country Status (4)

Country Link
US (1) US5940945A (fr)
EP (1) EP0866155B1 (fr)
JP (1) JPH10259540A (fr)
DE (1) DE59802014D1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6249939B1 (en) * 1998-05-07 2001-06-26 Hubert Kremer Method and device for warping using a cone sectional warping machine
EP1143052B1 (fr) * 2000-04-04 2009-07-15 Karl Mayer Textilmaschinen AG Procédé et dispositif pour diviser les fils sur un ourdissoir
EP1870501A1 (fr) * 2006-06-23 2007-12-26 Stäubli AG Pfäffikon Dispositif de séparation de fils d'une couche de fils, procédé pour opérer le dit dispositif et utilisation du dit dispositif

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3751937A (en) * 1971-12-13 1973-08-14 Travis Mills Corp Warp knitting machine having exhausted spool detector and spool therefor
US3765777A (en) * 1972-02-22 1973-10-16 Monsanto Co Device for locating and identifying threadline defects
US3869770A (en) * 1973-08-10 1975-03-11 Deering Milliken Res Corp Tight warp detector
JPS5750303Y2 (fr) * 1978-04-04 1982-11-04
DE3763978D1 (de) * 1987-05-14 1990-08-30 Ottica Arcetri Istituto Naz Schussfaden-kontrollvorrichtung in luftwebmaschinen.
CH678196A5 (fr) * 1988-05-27 1991-08-15 Benninger Ag Maschf
CH680455A5 (fr) * 1988-11-10 1992-08-31 Benninger Ag Maschf
JP3134879B2 (ja) * 1990-09-27 2001-02-13 津田駒工業株式会社 流体噴射式織機の積極フィードよこ入れ装置
JPH07305244A (ja) * 1994-05-06 1995-11-21 Toudou Seisakusho:Kk 自動綾取機
DE4443627C2 (de) * 1994-12-08 1999-11-25 Sucker Mueller Hacoba Gmbh Verfahren und Vorrichtung zum Einlegen von fadentrennenden Schnüren in die Fadenbänder einer Konusschärmaschine

Also Published As

Publication number Publication date
US5940945A (en) 1999-08-24
DE59802014D1 (de) 2001-12-13
EP0866155A1 (fr) 1998-09-23
JPH10259540A (ja) 1998-09-29

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