EP0087513A1 - Métier à tisser avec tambour de foule - Google Patents

Métier à tisser avec tambour de foule Download PDF

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Publication number
EP0087513A1
EP0087513A1 EP82111658A EP82111658A EP0087513A1 EP 0087513 A1 EP0087513 A1 EP 0087513A1 EP 82111658 A EP82111658 A EP 82111658A EP 82111658 A EP82111658 A EP 82111658A EP 0087513 A1 EP0087513 A1 EP 0087513A1
Authority
EP
European Patent Office
Prior art keywords
channel
elements
channel elements
weft
weaving
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
EP82111658A
Other languages
German (de)
English (en)
Other versions
EP0087513B1 (fr
Inventor
Alois Steiner
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.)
Maschinenfabrik Sulzer Rueti AG
Maschinenfabrik Rueti AG
Original Assignee
Maschinenfabrik Sulzer Rueti AG
Maschinenfabrik Rueti 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 Maschinenfabrik Sulzer Rueti AG, Maschinenfabrik Rueti AG filed Critical Maschinenfabrik Sulzer Rueti AG
Publication of EP0087513A1 publication Critical patent/EP0087513A1/fr
Application granted granted Critical
Publication of EP0087513B1 publication Critical patent/EP0087513B1/fr
Expired legal-status Critical Current

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Classifications

    • 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
    • D03D47/28—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed
    • D03D47/30—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed by gas jet
    • D03D47/3006—Construction of the nozzles
    • D03D47/302—Auxiliary nozzles
    • 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 weaving machine with a weaving rotor with combs of shed retaining elements for the warp threads to form open shed weaves moving in the warp direction and with guide channels formed from channel elements for the weft threads driven by a flowing fluid, which channel elements have a lockable lateral outlet slot for the weft thread are arranged to be movable and are designed at their front and rear ends in the weft direction in such a way that a continuous and closed guide channel is formed in their weft insertion position.
  • each guide channel consists of two slat combs which can be inserted into the warp threads and exchangeable from these, the individual slats of which form the channel elements.
  • the lamellae are naturally relatively thin and their end faces, that is to say their front and rear ends in the weft direction, are wedge-shaped, which facilitates the sliding together and apart of the lamella combs.
  • the lamellas of each lamellar comb are fixed on at least one rod which extends across the width of the weaving machine and on which rods act on drive levers controlled by machine-fixed control cams.
  • This known row shed weaving machine should make it possible to insert the weft threads not by blown air, but by suction air, which not only mean a significant energy saving, but also a much quieter thread flight and better controllability of the weft would allow entry.
  • the guide channel has such a large number of potential leakage points that the aim of the weft insertion by blowing air could only be achieved to a very limited extent.
  • the drive of the lamellar combs with the rods, drive levers and control cams has a large number of mechanically moved and stressed parts and thus exposed to possible wear.
  • the known row shed weaving machine is intended by the invention. to be improved in such a way that the weft threads can be introduced with suction air and that the guide channel with the drive and the control of the channel elements is designed as simply as possible and in particular consists only of a few and slightly stressed parts.
  • the channel elements have an elongated, tubular shape, that their length is a multiple of the thickness of a compartment holding element, that the channel elements can be moved back and forth by a drive element, the movement being in one direction closed guide channel is opened and a gap is formed between the channel elements and each channel element is moved out of its shed part and when moving in the other direction each channel element is moved into its shed part and the guide channel is closed, and that the total adjustment path of each channel element in one direction is at least as large how their length is.
  • Figures 1 and 3 show the weaving rotor of a row shed weaving machine in the longitudinal or cross section. In operation, the weaving rotor rotates in the direction indicated by an arrow P in FIG. 3. Operation and structure of a series shed weaving machine with a weaving rotor are assumed to be known and are not explained in more detail here; in this connection reference is made to US Pat. No. 4,290,458.
  • the weaving rotor has a hollow roller 1 which extends over the weaving width and is mounted on the side of the machine frame next to the warp threads and by a drive also arranged on the side of the machine frame is driven by means.
  • the hollow roller 1 is supported on its left face by a flange 2 and on its right face by a pipe stub 3.
  • the flange 2 is rotatable on the left machine wall
  • the pipe stub 3 is rotatably mounted in a housing 4 which is firmly connected to the right machine wall.
  • the shot is inserted in the direction of arrow A from left to right.
  • Guide combs for the warp threads and stop combs and guide channels F for the weft threads are alternately arranged on the jacket of the weaving rotor in the longitudinal direction of the hollow roller 1 and thus in the weft direction A.
  • a total of 12 to 14 of these combs and an equal number of guide channels F are provided on the entire jacket of the weaving rotor.
  • each guide channel F consists of a number of elongated, tubular channel elements 5 arranged one behind the other in the firing direction A, one of which is shown in perspective in FIG. 2.
  • the channel elements 5 have a triangular cross section and are provided on their upper longitudinal edge with a continuous longitudinal slot 6 between the two side surfaces and on their end faces each with a bevel of the same inclination.
  • the bevel on the front end side of each channel element 5 in the weft direction A continues against the axis of the hollow roller 1 into a tongue 7 bent away from the base surface of the channel element 5 at the same inclination as the end surface.
  • the tongue 7 then runs horizontally on this inclined part and is bent vertically at its free end against the axis of the hollow roller 1. This bent end 8 of the tongue 7 acts as a driver for the channel element 5.
  • connection element 9 is arranged next to the foremost channel element 5 of each guide channel F in the weft direction A, from which a hose 10 or another flexible line leads to a suction device (not shown).
  • the connection elements 9, which are arranged outside the warp threads, have the same cross-section and the same bevel on their end face facing the adjacent channel element 5 as this. They also have a driver tongue 11 projecting against the axis of the hollow roller 1, the shape of which is arbitrary within wide limits and they do not have a longitudinal slot 6, but are closed on their jacket.
  • each weft thread With each weft insertion, a weft thread is sucked through the channel elements 5 of each guide channel F in the weft direction A.
  • the respective shed is open and the warp threads K lie above and below the guide channel (upper guide channel F in FIG. 1).
  • each weft thread leaves its guide channel F through the longitudinal slots 6 in the direction away from the axis of the hollow roller 1.
  • the compartment must then be closed, which is made possible by shifting the channel elements 5 in the weft direction A (lower guide channel F 'in FIG. 1). As soon as the new shed is open, the channel elements 5 are pushed back into the weft direction A and the guide channel F is newly formed.
  • the drive means for each guide channel F are formed by two bands or flat bars 12 and 13 which extend over the weaving width and are arranged one above the other, both of which are fastened to the flange 2 at their end on the weft entry side via a tension spring 14 and 15, respectively.
  • One of the bands, the outer band 13 according to the illustration, is connected to a drive mechanism at its end on the exit side of the shot.
  • the bands 12 and 13 are each provided with recesses 16 and 17, respectively, in which the drivers 8 and 11 engage.
  • the drive mechanism of the belts 12 and 13 comprises a cable 18, one end of which is anchored to the outer belt 13 and the other end of which is anchored to the hollow roller 1, a roller 19 over which the cable 18 is guided, and the roller 19 control cam 20.
  • the roller 19 is fastened on a rod 22, which is mounted on two bearing rods 23 so that it can be moved back and forth in the weft direction A and which carries at one end a sliding block 24 which is in engagement with the control cam 20.
  • the bearing rods 23 are fastened on a disk 25 which is fixedly connected to the pipe stub 3 and therefore rotatable relative to the housing 4 and thus to the control cam 20.
  • each of the rods 22 also rotates and the sliding blocks 24 pass through the control cam 20.
  • Each roller 19 is displaced between the two extreme positions shown above and below in FIG. 1 and each outer belt 13 and each channel element 5 experiences via the rope 18 by the pulley effect of roller 19 and rope 18 a displacement twice as large as its role 19. Since the drivers 8 and 11 of the channel elements 5 and the connecting elements 9 each have the recesses 16 and 17 of both Projecting bands 12 and 13, the movement of each outer band 13 is also transmitted to the inner band 12 via these drivers 8 and 11.
  • the control curve 20 and the arrangement and dimensioning of the recesses 16 and 17 of the strips 12 and 13 are coordinated with one another such that, starting from the position of the channel elements 5 shown in FIG. 1 above, in which they form a closed guide channel F, the channel elements 5 are moved as follows: As soon as the weft insertion in a specific guide channel F has ended, the roller 19 is moved in the weft direction A and thereby also the outer band 13. In a first stage, a gap S is made between the channel elements 5 for the passage of the Warp threads K formed from the lower to the upper compartment.
  • the size of this column S which in the practical embodiment is approximately 1 to 2 mm, is limited by the inner band 12 and likewise by the inner band 12 the individual columns S are maintained during the further displacement of the channel elements 5.
  • the flange 2 has a stop 26 for each guide channel F and a bore 27 on each stop 26 through which the weft threads are sucked into their guide channels F.
  • Each weft thread is brought into or to the respective bore 27 by a device, not shown.
  • the warp threads K will occupy a position between the upper and lower shed depending on the shed geometry in this free space.
  • the channel elements 5 are rotated out of the warp thread plane and all the warp threads K can assume their closed shed position in which the weft stop takes place.
  • the weaving rotor then performs a relatively long rotation with the open guide channel F 'until this open guide channel F' re-enters the warp threads K, which have meanwhile carried out a change of shed.
  • the warp threads K are thus already in the upper and lower compartment, that is, the compartment is open. Over the remainder of the weaving width, the warp threads of the sub-compartment could not get into it because of the channel elements 5 located there, but lie under tension on the outer edge of the channel elements 5 with the slot 6.
  • the roller 19 is moved in the opposite direction to the firing direction A and the channel elements 5 are displaced against the stop 26 in a third stage until only the gaps S which are retained during this displacement are open.
  • the third stage in which the displacement of the belts 12 and 13 is supported by the springs 14 and 15, is therefore the reverse of the second stage.
  • the warp threads K provided for the lower compartment pass through the gap S into the lower compartment, so that each channel element 5 is pushed into an open compartment.
  • the inner band 12 abuts with its end face on the shot entry side against a stop 28 mounted on the flange 2 and can no longer move against the flange 2.
  • the guide channel F is now in the same position as after the first stage, that is to say only the gaps S are still open. Subsequently, the roller 19 is moved still further opposite to the weft direction A and in a fourth stage, which runs in the opposite direction to the first, the column S is closed and the guide channel F has again reached the position shown in FIG. 1 and is for a weft insertion ready.
  • the spring 15 ensures that the channel elements 5 against each other and are pressed against the stop 26, the guide channel F is therefore tight in the longitudinal direction and has no leaks.
  • the slots 6 are about 1 to 2 mm wide in the open state, which is sufficient for the exit of the weft thread. This is because the weft thread is automatically moved against and out of the slot 6 by the warp threads K entering the upper compartment when the guide channel F is opened, which is further supported by the triangular cross section of the channel elements 5.
  • the channel elements 5 are manufactured such that they have a slot 6 of the desired width in the idle state.
  • the channel elements 5 are integrally molded with the tongue 7 and the driver 8 and consist of a suitable plastic, for example polyamide 6. So that the slot 6 with the least possible effort can be closed, the channel elements 5 have on the two edges between the base surface and the two side surfaces a wall thinning (so-called "film hinge") in the form of a groove 34.
  • FIG. 3 shows, in a cross section of a section through the weaving rotor shown schematically in FIG. 1, the arrangement of the stop or. Guide combs and guide channels F on the jacket of the hollow roller 1.
  • the stop combs 35 consist of evenly spaced stop slats 37 for striking the inserted weft threads
  • the guide combs 36 consist of guide slats 38, between which the holding or retracting positions of the warp threads K are alternately arranged.
  • the compartment holding members for the high compartment position are formed by projections 39 on one side of the guide slats 38. Since the warp threads K rest on the compartment holding members 39 for the high compartment position and are tensioned, no special compartment holding members need to be provided for the deep compartment position, but it is sufficient if in their place there is an intermediate space extending up to the jacket of the hollow roller 1. Suitable spacer elements 40 are provided between the lamellae of the stop combs 35 and the guide combs 36.
  • the warp threads K hold the warp threads K in their up or down position over the entire wrap angle between the warp threads and the weaving rotor.
  • the weaving compartments formed in this way migrate in succession to the fabric stop edge, in the time in which the compartments are open, a weft thread is inserted into each compartment in a staggered manner.
  • the part of the stop lamella 37 and the guide lamella 38 projecting beyond the jacket of the hollow roller 1 has approximately the shape of a finger curved counter to the direction of rotation P of the weaving rotor, the inner edge of the guide lamella 38 and the outer edge of the stop lamella 37 leading in the direction of rotation P being one over the weaving width limit reaching channel-like space 41, in each of which a guide channel F is arranged.
  • the hollow roller 1 is provided on its jacket with L-shaped grooves parallel to the axis of the hollow roller 1, in which the stop and guide combs 35 and 36 are held. Between the grooves of each pair of combs, the hollow roller 1 below the channel-like space 41 has a groove 42 which extends over the weaving width and in which the lamellar elements 30 and the belts 12 and 13 are arranged. The lamella-like organs 30 protrude into the channel-like space 41 with their open mouth carrying the channel elements 5.
  • the stop and guide slats 37 and 38 forming the stop and guide combs 35 and 36 correspond approximately in thickness to a conventional leaf tooth.
  • the gaps for the lowering of the warp threads are also about as thick as a leaf tooth.
  • the compartment holding members 39 for the high position of the warp threads have a multiple of this thickness.
  • FIG. 4 schematically shows the opening and closing of a guide channel F using three different states I, II and III. For each of these conditions, the stop 26 of the flange 2, the position of the channel elements 5 and the bands 12 and 13 are shown. Below the sectional view of the belts 12 and 13, a schematic plan view of these belts is shown, from which the position and size of the recesses 16 and 17 and the position of the drivers 8 in these recesses can be seen. For the sake of simplicity, only four channel elements 5 1 to 5 4 are shown.
  • state I the guide channel F is closed.
  • the gaps S are opened, which corresponds to state II.
  • state III is reached (second stage), in which the guide channel is fully open, that is, there is a distance between the stop 26 and the adjacent channel element 5 4 of the length of a channel element plus one slit width and all slits S are open.
  • the guide channel returns to state II by shifting in the direction of arrow D and in the fourth stage by shifting in the direction of arrow E back to state I.
  • L The guide channel F is opened from the front, i.e. from the weft thread exit side, i.e. first the channel element 5 1 in the direction of the arrow B is only displaced by the length b, then the shifting of the next one begins, while the first one is shifted further and finally it becomes at the stop 26 adjacent channel element 5 4 shifted by the length b.
  • the connection element 9 (FIG. 1) is deliberately not mentioned here. Because there is not occupied by warp threads need to be formed 5 1 no gap between it and the forward channel element and its driver 11 could be integral with the band. 13
  • the driver 8 of the foremost channel element 5 1 could also be firmly connected to the outer band 13. As shown, however, this driver 8 projects into a recess 17 whose width a is somewhat greater than the thickness c of the driver 8.
  • the width of the recess 17 for the driver 8 of the channel element 5 2 following the foremost channel element 5 is a + b.
  • the width of the recess 17 for the driver 8 of the nth channel element is a + (nl) b.
  • the mutual distance between the front edges of the recesses 17 in the direction of arrow B corresponds to the length L.
  • the inner band 12 serves to maintain the opening of the gaps S during stages 2 and 3.
  • the total width of the rearmost recess 16 associated with the rearmost channel element 5 4 is d + b, the width of the next recess 16 is d + 2b and the width of the foremost, nth channel element is d + (nb).
  • n 1.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP82111658A 1982-02-19 1982-12-15 Métier à tisser avec tambour de foule Expired EP0087513B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1039/82 1982-02-19
CH1039/82A CH653387A5 (de) 1982-02-19 1982-02-19 Reihenfachwebmaschine mit einem webrotor.

Publications (2)

Publication Number Publication Date
EP0087513A1 true EP0087513A1 (fr) 1983-09-07
EP0087513B1 EP0087513B1 (fr) 1985-09-11

Family

ID=4201028

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82111658A Expired EP0087513B1 (fr) 1982-02-19 1982-12-15 Métier à tisser avec tambour de foule

Country Status (4)

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US (1) US4484603A (fr)
EP (1) EP0087513B1 (fr)
CH (1) CH653387A5 (fr)
DE (1) DE3266246D1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0143859A1 (fr) * 1983-12-01 1985-06-12 Maschinenfabrik Sulzer-Rüti Ag Rotor de tissage pour métier à tisser pneumatique multiphasé à foule linéaire
EP0145794A1 (fr) * 1983-12-01 1985-06-26 Maschinenfabrik Sulzer-Rüti Ag Rotor de tissage
GB2161503A (en) * 1984-06-06 1986-01-15 Vyzk Vyvojovy Ustav Confusor for a jet loom
EP0196349A1 (fr) * 1985-04-02 1986-10-08 GebràœDer Sulzer Aktiengesellschaft Rotor de tissage pour un métier à tisser multiphasé à foule linéaire
EP0736624A1 (fr) * 1995-04-07 1996-10-09 Danilo Jaksic Métier pour le tissage triaxial

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1272244B (de) * 1960-09-02 1968-07-04 Karl Heddergott Dr Ing Vorrichtung fuer Webmaschinen zum pneumatischen Eintragen des Schussfadens
EP0023929A1 (fr) * 1979-08-08 1981-02-18 GebràœDer Sulzer Aktiengesellschaft Buses pour métier à tisser à jet de fluide
DE3111780A1 (de) * 1980-03-27 1982-02-11 Rueti Ag Maschf Einrichtung zur fuehrung eines mittels eines stroemenden fluidums angetriebenen schussfadens im webfach einer webmaschine und verwendung der einrichtung an einer reihenfachwebmaschine
DE3037993A1 (de) * 1980-10-08 1982-05-13 Scheibler Peltzer & Co Webmaschine mit pneumatischen schusseintrag

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE792510A (fr) * 1971-12-09 1973-03-30 Schlafhorst & Co W Dispositif d'insertion de fils de trame pour metiers a tisser pourvus de bobines d'alimentation fixes
US4425946A (en) * 1980-10-16 1984-01-17 Mcginley Mills, Inc. Weaving method and apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1272244B (de) * 1960-09-02 1968-07-04 Karl Heddergott Dr Ing Vorrichtung fuer Webmaschinen zum pneumatischen Eintragen des Schussfadens
EP0023929A1 (fr) * 1979-08-08 1981-02-18 GebràœDer Sulzer Aktiengesellschaft Buses pour métier à tisser à jet de fluide
DE3111780A1 (de) * 1980-03-27 1982-02-11 Rueti Ag Maschf Einrichtung zur fuehrung eines mittels eines stroemenden fluidums angetriebenen schussfadens im webfach einer webmaschine und verwendung der einrichtung an einer reihenfachwebmaschine
DE3037993A1 (de) * 1980-10-08 1982-05-13 Scheibler Peltzer & Co Webmaschine mit pneumatischen schusseintrag

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0143859A1 (fr) * 1983-12-01 1985-06-12 Maschinenfabrik Sulzer-Rüti Ag Rotor de tissage pour métier à tisser pneumatique multiphasé à foule linéaire
EP0145794A1 (fr) * 1983-12-01 1985-06-26 Maschinenfabrik Sulzer-Rüti Ag Rotor de tissage
GB2161503A (en) * 1984-06-06 1986-01-15 Vyzk Vyvojovy Ustav Confusor for a jet loom
EP0196349A1 (fr) * 1985-04-02 1986-10-08 GebràœDer Sulzer Aktiengesellschaft Rotor de tissage pour un métier à tisser multiphasé à foule linéaire
EP0736624A1 (fr) * 1995-04-07 1996-10-09 Danilo Jaksic Métier pour le tissage triaxial
US5713395A (en) * 1995-04-07 1998-02-03 Jaksic; Danilo Rotary cage which applies warp reels in a triaxial weaving machine

Also Published As

Publication number Publication date
DE3266246D1 (en) 1985-10-17
EP0087513B1 (fr) 1985-09-11
CH653387A5 (de) 1985-12-31
US4484603A (en) 1984-11-27

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