EP0028577B1 - Vorrichtung zum Steuern eines Systems zum Strecken von Stapelfaserband - Google Patents

Vorrichtung zum Steuern eines Systems zum Strecken von Stapelfaserband Download PDF

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Publication number
EP0028577B1
EP0028577B1 EP80420118A EP80420118A EP0028577B1 EP 0028577 B1 EP0028577 B1 EP 0028577B1 EP 80420118 A EP80420118 A EP 80420118A EP 80420118 A EP80420118 A EP 80420118A EP 0028577 B1 EP0028577 B1 EP 0028577B1
Authority
EP
European Patent Office
Prior art keywords
roller
clutch
fact
pair
sleeves
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
Application number
EP80420118A
Other languages
English (en)
French (fr)
Other versions
EP0028577A1 (de
Inventor
Jean-Louis Faure
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.)
Dite Asa Sa SA Ste
Original Assignee
Dite Asa Sa SA Ste
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 Dite Asa Sa SA Ste filed Critical Dite Asa Sa SA Ste
Publication of EP0028577A1 publication Critical patent/EP0028577A1/de
Application granted granted Critical
Publication of EP0028577B1 publication Critical patent/EP0028577B1/de
Expired 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
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/26—Drafting machines or arrangements without fallers or like pinned bars in which fibres are controlled by one or more endless aprons
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/14—Details
    • D01H1/20—Driving or stopping arrangements
    • D01H1/22—Driving or stopping arrangements for rollers of drafting machines; Roller speed control

Definitions

  • the present invention relates to an improved device for drawing a wick of fibers with a view to converting it into a yarn.
  • It relates more particularly to a system for clutching and disengaging stretching sleeved trains, as well as to the application of such a device, in particular on machines for obtaining self-twisted yarns.
  • these machines comprise, for each working position, a drawing device making it possible to simultaneously treat two wicks, a core being incorporated in at least one of the wicks upstream of the last pair of stretching cylinders.
  • the wicking system is equipped with means allowing its automatic disengagement in the event of breakage, because, due to the presence of the core, the wire continues to be produced. Furthermore, these systems must be able to be adapted to automatically control the cutting of the core threads and stop the winding operation or, conversely, be able to be controlled by the breakage detectors, either of the core or of the wire formed.
  • the device according to the invention makes it possible to fulfill these objectives.
  • the invention therefore relates to a device for controlling a drawing system of at least one wick of fibers with a view to its transformation into a yarn
  • said drawing system being of the type comprising a pair of supply cylinders, a double sleeve system and a pair of stretching cylinders, these elements being kept under pressure in normal operation by means of a pendulum arm which can be moved between an out of working position and a working position, this arm supporting the one of the supply cylinders, sleeves and stretching cylinders, clutch and disengage means being provided for each stretching system of the machine and it is characterized in that the drive of the food cylinders is obtained, at least during the launching operation, by means of a clutch roller associated with each working position, said roller being movable and coming when it is in the engaged position, in contact with both one cylinders s food and with a drive shaft which extends over the entire length of the loom parallel and spaced from the driven food cylinder.
  • the drive of the pair of stretching cylinders is carried out in a conventional manner, one of these cylinders being constituted by a splined drive shaft common to all the working positions, the shaft on which is supported the stretching cylinder carried by the pendulum arm.
  • the clutch roller associated with each working position will be made from a material allowing a friction drive, such as for example based on the material sold under the brand VULKOLAN.
  • the sleeves with which the stretching system is provided will be driven directly by the motor food cylinder, for example by means of a belt connecting said cylinder to the support shaft of one of the sleeves.
  • the displacement of the clutch roller according to the invention will be obtained by any suitable means such as for example by a lever system.
  • the clutch and declutching device is associated with means allowing the automatic disengagement of the roller, these means being able to be controlled either by a breakage detector or by other members. safety devices, such as product wire break detectors.
  • the clutch system comprises, as said previously, a roller associated with each working position, said roller being able to be brought during the launching operation into the engaged position by contact with both the one of the cylinders food and with a motor shaft extending over the entire length of the loom and being mounted on a support allowing, in normal operation, to bring it back to the disengaged position and which, simultaneously, replaces this friction drive means a member positive drive, such as for example a pinion which meshes with a corresponding pinion carried by the motor shaft.
  • the device according to the invention can possibly be associated with means allowing an intermittent clutching of the roller with the driving cylinder so as to vary the flow rate of the wick treated.
  • This drawing system essentially comprises a pair of supply rollers 1, 2, a double sleeve system 3, 4 and a pair of drawing rollers 6, 7.
  • the wick 8 comes from a supply source which is not shown and after stretching can receive any conventional treatment.
  • a pendulum arm 9 supports the cylinder 1, the sleeve 3, the cylinder 6 and is pivotally mounted on a fixed shaft 10, extending over the entire length of the loom, and on which are mounted a plurality of working positions.
  • the pendulum arm 9 supports two sets of wick processing arranged symmetrically on either side of said arm.
  • Figure 1 only one drawing assembly has been shown.
  • a core 11 can be introduced into the wick immediately before its passage through the pair of stretching cylinders 6, 7.
  • This assembly can be arranged either horizontally as shown in Figure 1, or vertically or at an angle.
  • a conventional pressure system makes it possible to maintain the elements 1, 3, 6 under a determined pressure with a grooved supply cylinder 2, a sleeve 4 and a grooved stretch cylinder 7.
  • the feed cylinder 2 is individual for each working position, while the cylinder 7 is constituted by a shaft common to all the positions extending over the entire length of the loom.
  • the cylinder 2 controls, for example by means of a belt 13, the drive of the shaft 14 carrying the sleeve 4.
  • a drive shaft 12, arranged parallel to the cylinder 2 and spaced therefrom extends over the entire length of the loom.
  • a drive roller 15 for example a VULKOLAN roller
  • a system levers can be brought either into contact with cylinders 1 and 2 (engaged position), or out of contact with these (disengaged position).
  • the movement of the roller 15 is controlled as follows.
  • This roller is mounted on an axis 16 which slides in slides 17, 18 carried by the frame 20 of the loom.
  • This axis 16 is integral with a rod 21, one end 22 of which is subjected to the action of a traction spring 23 holding the roller 15 out of contact with the shaft 12 and the cylinder 2.
  • the other end 24 of the rod 21 is subjected to the action of a spring 25 which bears on the rear face of a lever 26 articulated on an axis 27 extending over the entire length of the loom.
  • the other end 28 of the lever 26 is subjected to the action of a lever 29 mounted eccentrically on a disc 30 which can pivot around an axis 31 and take two positions A, B, one A corresponding to the position disengaged from the roller 15, the other B in the engaged position.
  • the engaged position has simply been partially diagrammed by the dotted representation of the lever 29.
  • the pivoting of this lever 29 can be obtained either manually by action on a handle 32 provided at the periphery of the disc 30, or by action of a jack 33 the rod of which rests on the lever 29 and the action of which is triggered in the event of an accident, such as a broken lock.
  • a detector not shown, controls the actuation of the jack 33 by means of a solenoid valve, the rod of the jack pushing the lever 29 into position A and allowing the roller 15 to be returned under the action of the spring 23.
  • the roller 15 is controlled in the same manner as above during the restarting operation.
  • the roller is mounted on a support 34 arranged in such a way that, in normal operation, it is possible to disengage said roller 15 and simultaneously cause the drive of the shaft 12 by means of a pinion. 135 allowing a positive training.
  • Such devices are particularly suitable, but this is not limiting, for the production of self-twisted threads in which a core is incorporated into at least 1 'one of the wicks during its formation.
  • FIGS 2 and 3 illustrate such an application.
  • This machine which makes it possible to produce self-twisted core wires has a plurality of identical working positions, placed side by side on a support frame.
  • a supply of wicks of fibers 8 to be treated In the upper part of the frame 20 is arranged a supply of wicks of fibers 8 to be treated.
  • the processing members are constituted by a drawing assembly arranged vertically on this frame and a self-twisting system 35, constituted for example by a false twist spindle 36 and a member 37 making it possible to vary the length of the twist rise ( intermittent deliverer), is arranged immediately below the pair of stretching cylinders 6, 7.
  • the two treated wires, after assembly by self-rotation are called up by means of a conventional deliverer 37 to then be returned to 38.
  • the supply in core wire 11 is obtained by means of a deliverer 39, these wires coming from a creel 40 spaced from the frame and arranged opposite the latter.
  • Such an installation is equipped with means allowing the automatic disengagement of the drawing train of the wick in the event of breakage of the latter; these means are functionally connected on the one hand, to a wire cutter 41 for the core wire and to a detector 42 for controlling the winding.
  • the drawing train is disengaged in accordance with the example described in FIG. 1, but simultaneously, the cutting of the wire 41 and the stop of the winding at 42 are controlled. Similarly, if the core wire 11 breaks, the wire cutter 42 automatically triggers the disengaging of the drawing train.
  • the clutch is carried out as described above, this clutch being able to be produced progressively by varying the movements of the roller 15 relative to the motor shaft 12 and to the cylinder 2.
  • a positive clutch can possibly be produced as illustrated in the example illustrated in FIG. 4.
  • the stretching device according to the invention therefore guarantees great safety in the operation of the installations on which it is mounted.
  • the invention is not limited to the embodiments described above, but it also covers all the variants produced in the same spirit.
  • the clutch and declutching devices according to the invention can easily be coupled to a system allowing its intermittent control so as to obtain wires having effects on their length.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Claims (6)

1. Steuervorrichtung für ein Strecksystem für mindestens ein Faserband (8) zu seiner Verarbeitung zu Garnen, mit einem Zuführwalzen-Paar (1, 2), einem Doppel-Reibband-System (3, 4) und einem Streckzylinder-Paar (6, 7), die sämtlich während des Normalbetriebes mittels eines Pendelarmes (9) unter Andruck gehalten werden, welcher in eine Ausschaltstellung und eine Arbeitsstellung einstellbar ist und eine der Zuführwalzen (1, 2), eines der Reibbänder (3, 4) und einen der Streckzylinder (6, 7) trägt, und mit Mitteln zum Ein- und Auskuppeln für jedes Strecksystem der Maschine, dadurch gekennzeichnet, daß der Antrieb der Zuführwalzen (1, 2), zumindest während der Anlaufperiode, über eine jeder Arbeitsposition zugeordnete Kupplungs-Reibrolle (15) erfolgt, die beweglich ist und in eingekuppelter Stellung gleichzeitig an eine der Zuführwalzen (2) und einer Antriebswelle (12) zur Anlage kommt, welche sich über die ganze Länge der Maschine erstreckt, mit einem Abstand parallel zu der angetriebenen Zuführwalze (2), und die während des Anlaufens ein progressives Einkuppeln des Strecksystems ermöglicht.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Antrieb des Streckzylinder-Paares (6, 7) über eine für alle Arbeitspositionen gemeinsame gerillte Antriebswelle (7) erfolgt, an der der von dem Pendelarm (9) getragene Streckzylinder (6) zur Anlage kommt.
3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Reibbänder (3, 4) durch die Zuführwalze (2) mittels eines Treibriemens (13) angetrieben wird, der die Zuführwalze (2) mit der das Reibband (4) tragenden Welle (14) verbindet.
4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Verstellung der Kupplungsrolle (15) über ein Hebelsystem erfolgt.
5. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß sie Mittel zum automatischen Auskuppeln der Rolle (15) aufweist, die durch einen Faserbandbruch-Wächter oder andere Sicherheitsorgane, wie Bruchwächter des erzeugten Fadens, gesteuert sind.
6. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die jeder Arbeitsposition zugeordnete Kupplungsrolle (15) auf einem Träger (34) angeordnet ist, der es erlaubt, sie bei Normalbetrieb in Ausrückstellung zu bringen und gleichzeitig den Reibantrieb durch ein positives Antriebsmittel zu ersetzen, wie beispielsweise ein Ritzel (135), das in ein entsprechendes Ritzel (139) auf der Antriebswelle (12) eingreift.
EP80420118A 1979-11-05 1980-11-04 Vorrichtung zum Steuern eines Systems zum Strecken von Stapelfaserband Expired EP0028577B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7927624 1979-11-05
FR7927624A FR2468667A1 (fr) 1979-11-05 1979-11-05 Dispositif de commande s'un systeme d'etirage de meches de fibres

Publications (2)

Publication Number Publication Date
EP0028577A1 EP0028577A1 (de) 1981-05-13
EP0028577B1 true EP0028577B1 (de) 1984-01-18

Family

ID=9231463

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80420118A Expired EP0028577B1 (de) 1979-11-05 1980-11-04 Vorrichtung zum Steuern eines Systems zum Strecken von Stapelfaserband

Country Status (6)

Country Link
US (1) US4373233A (de)
EP (1) EP0028577B1 (de)
JP (1) JPS5673121A (de)
AU (1) AU6408680A (de)
DE (1) DE3066203D1 (de)
FR (1) FR2468667A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4489540A (en) * 1982-01-26 1984-12-25 Asa S.A. Process and device for obtaining a spun yarn of fibres comprising an internal core and novel types of spun yarns thus made
JPS58214537A (ja) * 1982-05-31 1983-12-13 Toyoda Autom Loom Works Ltd 精紡機におけるドラフトロ−ラ駆動装置
US4896902A (en) * 1988-09-29 1990-01-30 Victaulic Company Of America Segmented transition coupling
DE3841544A1 (de) * 1988-12-09 1990-06-13 Fritz Stahlecker Spinnmaschine mit mehreren spinnstellen

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1885423A (en) * 1931-06-15 1932-11-01 John A Fenton Stop motion
CH286439A (fr) * 1948-08-18 1952-10-31 Saco Lowell Shops Procédé d'étirage de mèches, composées de fibres textiles, et machine pour la mise en oeuvre de ce procédé.
FR1380710A (fr) * 1963-10-24 1964-12-04 Alsacienne Constr Meca Perfectionnement aux machines textiles pour le travail de rubans, mèches ou fils
US3748694A (en) * 1971-11-03 1973-07-31 Schaeffler Ohg Industriewerk Drafting system having a supporting roll for offset top feed roll
FR2304702A1 (fr) * 1975-03-21 1976-10-15 Inst Textile De France Procede et appareil pour le filage de fils a ame

Also Published As

Publication number Publication date
FR2468667B1 (de) 1981-10-30
EP0028577A1 (de) 1981-05-13
JPS5673121A (en) 1981-06-17
US4373233A (en) 1983-02-15
AU6408680A (en) 1981-08-20
DE3066203D1 (en) 1984-02-23
FR2468667A1 (fr) 1981-05-08

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