EP1048767A2 - Métier à tisser multiphasé à foule linéaire et procédé pour insérer le fil de trame dans un métier à tisser multiphasé à foule linéaire - Google Patents

Métier à tisser multiphasé à foule linéaire et procédé pour insérer le fil de trame dans un métier à tisser multiphasé à foule linéaire Download PDF

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Publication number
EP1048767A2
EP1048767A2 EP00810243A EP00810243A EP1048767A2 EP 1048767 A2 EP1048767 A2 EP 1048767A2 EP 00810243 A EP00810243 A EP 00810243A EP 00810243 A EP00810243 A EP 00810243A EP 1048767 A2 EP1048767 A2 EP 1048767A2
Authority
EP
European Patent Office
Prior art keywords
weft
thread
weaving
rotor
weft thread
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
EP00810243A
Other languages
German (de)
English (en)
Other versions
EP1048767B1 (fr
EP1048767A3 (fr
Inventor
Hans Peter
Robert Bucher
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.)
Itema Switzerland Ltd
Original Assignee
Sulzer Textil AG
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 Sulzer Textil AG filed Critical Sulzer Textil AG
Priority to EP20000810243 priority Critical patent/EP1048767B1/fr
Publication of EP1048767A2 publication Critical patent/EP1048767A2/fr
Publication of EP1048767A3 publication Critical patent/EP1048767A3/fr
Application granted granted Critical
Publication of EP1048767B1 publication Critical patent/EP1048767B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D41/00—Looms not otherwise provided for, e.g. for weaving chenille yarn; Details peculiar to these looms
    • D03D41/005—Linear-shed multiphase looms

Definitions

  • the invention relates to a row shed loom according to the preamble of claim 1.
  • the invention further relates to a method for entering a Weft thread in a row shed loom according to the preamble of Claim 9.
  • a row shed weaving machine is included a feeder for weft threads known, which the weft threads each via an intermediate channel formed on the end face of the weaving rotor the weft channel arranged in the weaving rotor.
  • the Weft thread opposite to the direction of rotation of the weaving rotor and below Formation of a loop is promoted through the intermediate channel.
  • a disadvantage of this known arrangement or this Known weft insertion method is the fact that the weft is occasionally hindered in the intermediate channel in such a way that a faulty one Weft thread entry results.
  • a row shed weaving machine comprising a weaving rotor rotatably mounted about an axis of rotation several, each comprising an inlet opening and a firing channel Weft insertion paths, the weft channels in the circumferential direction of the Web rotors regularly spaced and in the direction of the axis of rotation are arranged extending, and wherein the inlet openings in the area an end face of the weaving rotor are arranged, as well as comprising one fixed feed device for weft threads, said feed device has a guide element with an outlet for each weft thread, and the Guiding elements extending in this way and the exits to the end face of the Webrotors are arranged so that the weft thread in the extending essentially in the direction of the axis of rotation from the guide element exits and is oriented towards the inlet opening in such a way that is spinning web rotor the entry opening in each case essentially for a short time is arranged opposite the exits.
  • the entry opening of the weft insertion section is preferably in the Extension of the by the arrangement and design of the Feed device arranged certain trajectory of the weft thread, so that the weft thread with a correspondingly arranged weft insertion distance automatically entered in this.
  • the position of the rotating Web rotors and the time of entry of the shot so mutual synchronized that the entry opening of the weft insertion route as the weft thread approaches, roughly in its trajectory located.
  • the row shed weaving machine according to the invention has the advantage that the weft does not initially, as is known from the prior art longer intermediate channel must be overcome in order to then in the Weft channel of the weaving rotor, but that the weft thread shortly after leaving the feed device into the firing channel entry. So far while flying through the intermediate channel Problems that arise are thus avoided.
  • a major advantage the row shed weaving machine according to the invention is thus the safe one Guiding the weft during the entry, especially during the beginning of the weft thread entry, since this is both in the Feed device and safely guided in the weft insertion section.
  • the inlet opening is the Weft insertion path designed as an inlet opening of a nozzle, which in able to draw in the approaching weft thread and actively continue to promote.
  • the weaving rotor Since the weaving rotor is constantly rotating, the result is Effect that the distance increases after the weft has been shot between the outlet opening of the feed device and the inlet opening the weft insertion distance is continuously increased.
  • the continuously supplied weft thus points to the complete Weft thread entry on an increasingly longer section, which is located between the outlet opening and the inlet opening, the Weft thread in this section does not need guidance because the weft thread safe both in the feeder and in the weft insertion path is guided so that the intermediate piece of the Weft thread is held and guided safely.
  • additional thread guide parts are provided, which lead the weft in this section to a particular one avoid touching the weft threads.
  • the Row shed weaving machine retraction devices for the weft threads, for this after a complete weft thread entry and after the Retract cutting in such a way that the weft thread tip in the Feed device or in the region of the outlet opening thereof.
  • the inventive design of the row shed weaving machine the weft thread can each be in a fully extended arrangement withdrawn, so that this withdrawal does not result in any Weft thread loops are created. This contributes significantly to another Increase the trouble-free weft insertion.
  • the weft is required to form a to feed the correspondingly large loop to the inlet opening.
  • the weft thread has such qualities that the Loop formation only slightly and in particular not negatively influenced.
  • the known row shed weaving machine shown schematically in FIG. 1 comprises a weaving rotor 4 with a plurality of weft channels 7, wherein the weaving rotor 4 is rotatably mounted in the direction of rotation 5.
  • Thread feed device 31 From one Thread feed device 31 is a weft thread 10 over a Feed device comprising a feed nozzle 22 and an auxiliary nozzle 26 fed.
  • the transfer of the weft thread 10 from the feed device to the weaving rotor takes place via a two-part device, which is a fixed one Part 21 and a rotating part 11 firmly connected to the weaving rotor 4 includes.
  • the two parts 11, 21 are via a separating and sealing surface 20 designed to abut one another, a feed channel 24 being formed, which via a guide element 16, a fixed edge 27, a takeover channel 14, and a shooting tube 12 opens into the firing channel 7.
  • a feed channel 24 being formed, which via a guide element 16, a fixed edge 27, a takeover channel 14, and a shooting tube 12 opens into the firing channel 7.
  • one Blow-off nozzle 17 arranged to position the weft 10 inside to influence this channel.
  • the weft 10 was in the weft channel 7a completely entered, cut and is now using the nozzle 17th within the feed channel 24 forming a loop from the Gun tube 12a withdrawn and fed to gun tube 12b.
  • the weaving rotor and the rotating part 11 move in the direction of rotation 5, whereas the weft thread is opposite to this direction of rotation 5 in Feed channel 24 is promoted. This opposite promotion of Weft as well as the long one and provided with several deflection points Design of the feed channel 24 hinders the passage
  • the longitudinal section through a weaving rotor 4 according to FIG. 2 shows a Embodiment of the row shed weaving machine according to the invention.
  • the Weaving rotor 4 comprises a weaving rotor body 4a, on the surface of which in Longitudinally spaced combs 6 are arranged, which is a high compartment 6a or a deep compartment 6b and a firing channel 7, in which a weft 10 by means of air nozzles 8 through the outflowing Compressed air 8a can be entered.
  • the weaving rotor 4 has an end face 4b, which by a co-rotating part firmly connected to the weaving rotor 4 2e is formed, which has an inlet opening 2a and a guide channel 2f having.
  • a fixed feed device 18 includes a feed tube for each weft thread 10a, 10b, 10c, 10d configured guide element 18a, 18b, 18c, 18d with outlet opening 23a, 23b, 23c, 23d.
  • the guide elements 18a, 18b, 18c, 18d are designed in this way and the outlets 23a, 23b, 23c, 23d towards the front side 4b of the weaving rotor 4 aligned that the weft 10; 10a, 10b, 10c, 10d in essentially extending in the direction D1 from the guide element 18a, 18b, 18c, 18d emerges and flies towards the inlet opening 2a, enters it and thus into reaches the firing channel 7.
  • the Direction of the guide elements 18a, 18b, 18c, 18d by a certain amount deviate from the direction D1, the guide elements preferably being such are aligned so that the weft thread 10 in the entry opening 2a is shot.
  • the time at which the weft thread is inserted 10 with the position of the weaving rotor 4 rotating in the direction of rotation 5 synchronize that the weaving rotor 4 when the weft thread 10 exits the guide element 18a, 18b, 18c, 18d has approximately the position shown.
  • the between the outlet opening 23a, 23b, 23c, 23d and the inlet opening 2a located transition path 35 is very short, which is a safe entry of the weft thread 10 in the entry opening 2a.
  • the Transitional route 35 denotes the route section that is between the outlet opening 23a, 23b, 23c, 23d and the inlet opening 2a in results essentially in direction D1.
  • the feeder 18 could also be designed in one piece with, for example, four as Guide elements 18a, 18b, 18c, 18d formed channels or tubes.
  • the longitudinal section according to FIG. 3a shows a further embodiment a weaving rotor 4, whereby, in contrast to the embodiment according to FIG. 2, in co-rotating part 2e a delivery nozzle 13a is arranged, the entrance at the same time forms the inlet opening 2a.
  • the one designed as a tube Guide element 18a has a guide element 16a configured with a U-shape provided outlet opening 23a.
  • the delivery nozzle 13a sucks the Exit opening 23a exits weft thread 10a and conveys it safely into the firing channel 7a.
  • FIG. 3b of the in the direction of rotation 5 .mu.m the axis of rotation D of the rotating web rotor 4 according to FIG. 3a shows that simultaneously four weft threads 10a, 10b, 10c, 10d in four different Shot channels 7a, 7b, 7c, 7d entered in the entry direction 3a, 3b, 3c, 3d become.
  • the warp threads 9 and the thread scissors 25 can be seen.
  • the invisible entry opening 2d with the firing channel 7d is approximately in alignment to the guide element 18d, 16d, and the weft thread 10d is inserted.
  • the guide elements 16a, 16b, 16c, 16d could also be such be designed so that they, as in Figures 5a and 5b by fixed thread guide part 34 shown in the circumferential direction extend a section along the end face 4b, the length of this Section preferably for guiding the weft thread on the front side 4b length required during a full weft insertion corresponds.
  • FIG. 4a shows a longitudinal section through a further embodiment of a Web rotor 4, which is on the front side, in comparison to the embodiment 3a, has an additional guide element 2g, which with the Web rotor 4 is firmly connected.
  • the guide element 2g has the function that Thread sections, which, as shown in Fig. 3b, between the guide element 23a, 23b, 23c, 23d and the entry opening 2a, 2b, 2c, 2d, to lead each other without contact.
  • the guide element 2g grooves 19a, 19b, 19c, 19d in which shown section, the groove 19d has an inlet opening 2d, which for Inlet opening 13e of the delivery nozzle 13d opens out.
  • the Grooves 19a, 19b, 19c, 19d ring-shaped in the guide element 2g, with each groove 19a, 19b, 19c, 19d at least one inlet opening 2a, 2b, 2c, 2d arranged through which the weft thread 10a, 10b, 10c, 10d the weft channel 7a, 7b, 7c, 7d can be fed.
  • the grooves 19a, 19b, 19c, 19d prevent one mutual contact of the weft threads 10a, 10b, 10c, 10d. From the Section along the line A-A can be seen in Fig.
  • the guide element 18d extends in the direction D1 and essentially arranged in alignment with the weft channel 7d, the weft thread 10d executes a slight transverse movement within the guide element 2g.
  • the Row shed loom is with thread storage devices 32 or retraction devices 32, each one Air nozzle 28a, 28b, 28c, 28d and eyelets 29a, 29b, 29c, 29d include.
  • the Thread storage devices 32 allow that of the Thread feed device 31 continuously fed thread 10a, 10b, 10c, 10d for a short time, for example in such a way that the thread 10a, 10b, 10c, 10d after the thread storage device 32 briefly motionless rests.
  • the thread storage device 32 can also be operated in such a way that the weft after cutting with scissors 15, as for the Weft thread 10a shown opposite to the direction of entry in Withdrawn towards 3a until the tip of the weft thread for example in the guide element 18a.
  • A can be in the guide element 18a Not shown sensor can be arranged, which the position of the tip supervised.
  • the guide elements 18a shown have air inlet openings on which compressed air can be blown in to the weft insertion or to assist the retraction of the weft thread tip.
  • FIG. 5a shows a longitudinal section through a further exemplary embodiment of a Weaving rotor 4, with a fixed one on the front side 4b of the weaving rotor 4 Thread guide part 34 with guide channels 34a, 34b, 34c, 34d arranged and a rotating part 2g is firmly connected to the weaving rotor 4.
  • Thread guide part 34 with guide channels 34a, 34b, 34c, 34d arranged and a rotating part 2g is firmly connected to the weaving rotor 4.
  • the rotating part 2g has inlet openings 2a, 2b, 2c, 2d on which the weft thread 10a, 10b, 10c, 10d of the conveying nozzle 13a, 13b, 13c, 13d and then the shot channel 7a, 7b, 7c, 7d.
  • the feed pipes run after the outlet openings 23a, 23b, 23c, 23d 18a, 18b, 18c, 18d further than slotted guide channels 34a, 34b, 34c, 34d, whose task is to touch the weft threads 10a, 10b, 10c, 10d to prevent.
  • the designed as separate pipe sections Guide channels 34a, 34b, 34c, 34d could also be in one piece Guide element can be formed with a plurality of thread guide channels.
  • Row shed weaving machine is based on the schematic representation 6 explained.
  • the weaving rotor 4 has a plurality of essentially extending in the direction D1 of the axis of rotation D.
  • Each Weft insertion section 2 comprises an inlet opening 2a, 2b, 2c, 2d and a shot channel 7a, 7b, 7c, 7d.
  • the weft 10a is in one of the Feed device 18a subsequent transition section 35 essentially shot in the direction D1 to the front side 4a of the weaving rotor 4 and the entry so timed with the location of the weft insertion distance 2; 2a, 7a matched that this at the beginning of the insertion of the weft 10a when the weft thread tip 33b is approximately in the position shown is arranged essentially in alignment with the weft thread 10a, around the weft 10a securely from the feeder 18a in To promote weft insertion direction 33c and in the inlet opening 2a Shoot in shot insertion path 2.
  • FIGS. 7a, 7b and 7c show process steps during the entry a weft in a weaving rotor 4 without active retraction of the Weft thread 10 by a thread retraction device 32.
  • the weaving rotor 4 a weft thread 10 is continuously fed via a thread feed device 31 fed and entered in the firing channels 7.
  • Figure 7a the Weft thread 10 just completely in the weft channel 7 shown above registered and weft entry side through the thread scissors 25 under Formation of a new weft tip 33b cut.
  • the Entry opening 2a of the next firing channel 7 is located opposite the outlet opening 23a of the feed device 18, so that the forming loop of the weft thread 10 in the entry opening 2a registered and with the help of the delivery nozzle 13a, as shown in Fig.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP20000810243 1999-04-21 2000-03-22 Métier à tisser multiphasé à foule linéaire et procédé pour insérer le fil de trame dans un métier à tisser multiphasé à foule linéaire Expired - Lifetime EP1048767B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20000810243 EP1048767B1 (fr) 1999-04-21 2000-03-22 Métier à tisser multiphasé à foule linéaire et procédé pour insérer le fil de trame dans un métier à tisser multiphasé à foule linéaire

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP99810333 1999-04-21
EP99810333 1999-04-21
EP20000810243 EP1048767B1 (fr) 1999-04-21 2000-03-22 Métier à tisser multiphasé à foule linéaire et procédé pour insérer le fil de trame dans un métier à tisser multiphasé à foule linéaire

Publications (3)

Publication Number Publication Date
EP1048767A2 true EP1048767A2 (fr) 2000-11-02
EP1048767A3 EP1048767A3 (fr) 2001-05-30
EP1048767B1 EP1048767B1 (fr) 2006-05-17

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Application Number Title Priority Date Filing Date
EP20000810243 Expired - Lifetime EP1048767B1 (fr) 1999-04-21 2000-03-22 Métier à tisser multiphasé à foule linéaire et procédé pour insérer le fil de trame dans un métier à tisser multiphasé à foule linéaire

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Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2848684B2 (ja) * 1989-11-16 1999-01-20 ゲブリユーダー ズルツアー アクチエンゲゼルシヤフト よこ糸分配機構
DE59408476D1 (de) * 1994-05-30 1999-08-12 Rueti Ag Maschf Verfahren und Vorrichtung zum Eintrag von Schussfäden in eine Reihenfachwebmaschine
US5540261A (en) * 1995-10-05 1996-07-30 Mcginley; Thomas F. Warp wave weaving method and apparatus with pneumatic weft insertion

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EP1048767B1 (fr) 2006-05-17
EP1048767A3 (fr) 2001-05-30

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