EP0483024A1 - Verfahren und Vorrichtung zur Bildung einer Fadenreserve bei einer Textilmaschine - Google Patents

Verfahren und Vorrichtung zur Bildung einer Fadenreserve bei einer Textilmaschine Download PDF

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Publication number
EP0483024A1
EP0483024A1 EP91420368A EP91420368A EP0483024A1 EP 0483024 A1 EP0483024 A1 EP 0483024A1 EP 91420368 A EP91420368 A EP 91420368A EP 91420368 A EP91420368 A EP 91420368A EP 0483024 A1 EP0483024 A1 EP 0483024A1
Authority
EP
European Patent Office
Prior art keywords
loop
chamber
wire
strand
storage
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.)
Withdrawn
Application number
EP91420368A
Other languages
English (en)
French (fr)
Inventor
Bernard Isoard
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.)
Devtex
Original Assignee
Devtex
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 Devtex filed Critical Devtex
Publication of EP0483024A1 publication Critical patent/EP0483024A1/de
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B65H51/20—Devices for temporarily storing filamentary material during forwarding, e.g. for buffer storage
    • B65H51/205—Devices for temporarily storing filamentary material during forwarding, e.g. for buffer storage by means of a fluid
    • 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
    • D03D47/368—Air chamber storage 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
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • such a storage device results from the fact that upstream of a determined zone, the wire is delivered at a constant speed and, that downstream of this zone, it is transported to a different speed, or even is immobilized (or vice versa).
  • the aforementioned solutions make it possible to store a sufficient length of yarn since the width of the weaving looms without shuttle rarely exceed two meters, on the other hand, in the field of spinning, they do not allow perform piecing operations (or splices) by means of systems having a slow operating cycle which therefore implies being able to store, on the spinning machine or on the robotic assembly performing the piecing operation, a large length of yarn.
  • piecing operations or splices
  • the invention therefore relates to an improved method for temporarily storing, in the form of a loop, a moving wire inside a chamber (or channel), including the section mouth relatively flat and rectangular, is arranged vertically opposite the path of the wire during its production, said channel being subjected to the action of a stream of fluid making it possible to keep the two strands of the loop formed separate, one of the strands (said "input strand”) being introduced inside the chamber at a constant speed, and the other strand (said "output strand”) being immobilized inside the chamber during of the formation of the loop, the method according to the invention being characterized in that one communicates at the fixed end of the output strand of the traction pulses making it possible to reposition the two strands relative to one another of the wire loop which can be deformed by friction t against the walls of the storage chamber.
  • the section of the storage chamber can be profiled in order to define two separate channels for each of the strands of the loop, channels connected together by a free area. allowing the passage of the wire, and the profile of which is such that it tends to keep the mobile strand and the fixed strand of the loop separated from one another in the areas where they tend to approach one of the 'other.
  • the method according to the invention can be implemented on any type of textile machine, and in particular on spinning machines, the means allowing its implementation and in particular the wire storage enclosure which can be associated, either with each working position that the machine comprises, or be mounted on a mobile assembly of the "robot" type which moves in front of the machine so as to be able to intervene indifferently in any position.
  • the method according to the invention can be implemented on any type of textile machine, such as for example a schematic spinning machine in Figure 2, in particular for making a connection for which the material flow (3) must not be interrupted.
  • any type of textile machine such as for example a schematic spinning machine in Figure 2, in particular for making a connection for which the material flow (3) must not be interrupted.
  • the movable wire (3 ) issued by the supplier (12) is transferred from this supplier to a position (P2) by a vacuum cleaner ensuring sufficient tension in the wire so that the latter, passing in front of the inlet (2) of a temporary storage assembly (1), is not sucked in by the latter.
  • the other end of the wire taken from the winding system (13) which has been stopped is, in turn, brought to a suction (P1) which provides a slight tension to this moving wire.
  • the two ends thus positioned are then introduced into a reattachment system (14) of any known type, allowing for example to make a splice.
  • the suction systems (P1 and P2) allow, after completion of the piecing, to evacuate the two ends of cut wire.
  • the reattachment cycle begins with the closing of a clamp (15) which thus immobilizes the wire (3) coming from a power source (12).
  • the wire flow being interrupted, the reattachment device (4) can therefore operate.
  • the wire (3) coming from the deliverer (12) must therefore be stored, the length of stored wire being a function of the duration of the connection and the speed of flow of the wire (3) and being able to reach , as seen above, twenty meters for a machine operating at 600 meters / minute and with a fastening time of two seconds.
  • the solution according to the invention for obtaining such a length of wire consists in accumulating the wire (3) coming from the power source (12) inside a chamber (1) in the form of 'a loop (4) comprising two strands (4a, 4b) obtained by the action of an air current flowing inside said chamber or enclosure (2).
  • the strand (4a) moves inside the chamber while the strand (4b) (called “output strand") is, taking into account the fact that the wire is immobilized by the clamp (15), kept fixed.
  • the stationary end of the strand (4b) is subjected to small traction pulses which make it possible to reposition the loop of wire.
  • Such pulses can be communicated either by moving the clamp (15), or possibly by means of an additional guide (16) which intermittently moves the fixed strand at the outlet of the storage member (1).
  • FIGS. 4 and 6 illustrate an embodiment in which the storage enclosure (1) passes from a vertical position to a plane transition zone but inclined relative to the horizontal, in order then to present two superimposed horizontal sections .
  • Such an embodiment is particularly useful when it is desired to adapt a storage assembly to each working position.
  • FIGS. 7 and 8 illustrate two embodiments of a storage duct made possible by the method according to the invention and in which said duct is associated with a “robot” type system which can be moved in front of each position that comprises the machine.
  • the entry area of the duct is arranged vertically opposite the path of the wire, then is twisted to form a flat duct, oriented vertically, duct which is then folded horizontally as illustrated in the embodiment ( Figure 7), or vertically as illustrated in the embodiment ( Figure 8).

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Looms (AREA)
EP91420368A 1990-10-23 1991-10-18 Verfahren und Vorrichtung zur Bildung einer Fadenreserve bei einer Textilmaschine Withdrawn EP0483024A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9013335A FR2668137B1 (fr) 1990-10-23 1990-10-23 Procede et dispositif pour la formation d'une reserve de fil sur une machine textile.
FR9013335 1990-10-23

Publications (1)

Publication Number Publication Date
EP0483024A1 true EP0483024A1 (de) 1992-04-29

Family

ID=9401622

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91420368A Withdrawn EP0483024A1 (de) 1990-10-23 1991-10-18 Verfahren und Vorrichtung zur Bildung einer Fadenreserve bei einer Textilmaschine

Country Status (3)

Country Link
EP (1) EP0483024A1 (de)
JP (1) JPH04263649A (de)
FR (1) FR2668137B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005055717A1 (de) * 2005-11-23 2007-05-24 Saurer Gmbh & Co. Kg Saugluftdüse für eine Textilmaschine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2355932A1 (fr) * 1976-06-25 1978-01-20 Murata Machinery Ltd Dispositif pour la rattache et le nouage d'un fil rompu dans un metier a filer pneumatique
DE2802913B1 (de) * 1978-01-24 1978-11-09 Schubert & Salzer Maschinen Saugluftduese zur Bildung einer Fadenreserve
DE3829151A1 (de) * 1988-08-27 1990-03-01 Fritz Stahlecker Vorrichtung zum zwischenspeichern eines fadens an einer spinnmaschine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2355932A1 (fr) * 1976-06-25 1978-01-20 Murata Machinery Ltd Dispositif pour la rattache et le nouage d'un fil rompu dans un metier a filer pneumatique
DE2802913B1 (de) * 1978-01-24 1978-11-09 Schubert & Salzer Maschinen Saugluftduese zur Bildung einer Fadenreserve
DE3829151A1 (de) * 1988-08-27 1990-03-01 Fritz Stahlecker Vorrichtung zum zwischenspeichern eines fadens an einer spinnmaschine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005055717A1 (de) * 2005-11-23 2007-05-24 Saurer Gmbh & Co. Kg Saugluftdüse für eine Textilmaschine

Also Published As

Publication number Publication date
FR2668137A1 (fr) 1992-04-24
JPH04263649A (ja) 1992-09-18
FR2668137B1 (fr) 1992-12-18

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