EP0031853A1 - Multiple weft mechanism for a weaving machine - Google Patents

Multiple weft mechanism for a weaving machine Download PDF

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Publication number
EP0031853A1
EP0031853A1 EP79105381A EP79105381A EP0031853A1 EP 0031853 A1 EP0031853 A1 EP 0031853A1 EP 79105381 A EP79105381 A EP 79105381A EP 79105381 A EP79105381 A EP 79105381A EP 0031853 A1 EP0031853 A1 EP 0031853A1
Authority
EP
European Patent Office
Prior art keywords
thread
weft
roller
roller lever
locking member
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
EP79105381A
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German (de)
French (fr)
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EP0031853B1 (en
Inventor
Oskar Hübner
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.)
Sulzer AG
Original Assignee
Sulzer AG
Gebrueder Sulzer 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 AG, Gebrueder Sulzer AG filed Critical Sulzer AG
Priority to EP79105381A priority Critical patent/EP0031853B1/en
Priority to AT79105381T priority patent/ATE4603T1/en
Priority to DE7979105381T priority patent/DE2966149D1/en
Priority to US06/212,421 priority patent/US4382455A/en
Priority to SU803215948A priority patent/SU1071230A3/en
Priority to CS809153A priority patent/CS227321B2/en
Priority to BR8008471A priority patent/BR8008471A/en
Priority to JP18419180A priority patent/JPS56101948A/en
Publication of EP0031853A1 publication Critical patent/EP0031853A1/en
Application granted granted Critical
Publication of EP0031853B1 publication Critical patent/EP0031853B1/en
Expired legal-status Critical Current

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    • 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
    • D03D47/38—Weft pattern mechanisms

Definitions

  • the invention relates to a multi-weft device for a weaving machine with a weft thread supply remaining outside the shed, which multi-weft device contains a weft thread changing element and a weft thread feed device connected upstream thereof, which has at least two thread influencing elements lying in parallel, e.g. Thread brakes and / or thread tensioner contains, of which the desired thread influencing elements are coupled to a drive according to a weft insertion program before each weft insertion.
  • Thread brakes or thread tensioners for example, are assumed to be weft influencing elements.
  • a sleeve which is axially displaceable and two cams, is arranged on a continuously rotating shaft which is intended for driving thread tensioners and thread brakes owns.
  • the cam sleeve is shifted in such a way that both of its cams are placed under the two roller levers of the thread tensioner and the thread brake via which the desired weft thread is to be inserted.
  • the loom of 300 rpm or more, for example has difficulties with this cam sleeve because, due to the relatively large mass, it requires a relatively high driving force for its axial displacement. This driving force cannot be applied with certainty, for example, by a spring storage element located in the drive of the weft exchange member, and the bushing does not execute its axial displacement movement with sufficient accuracy and speed.
  • the invention has for its object to provide a device which is particularly improved in this regard, that is to say an interchangeable member which operates reliably even at high speeds and is driven by the thread tensioner and thread brakes.
  • each thread influencing element contains a cam with an associated, spring-loaded roller lever for actuating the element, a locking member being movable in the path of the roller lever to prevent the cam follower movement of the roller lever during stoppages of the associated influencing element .
  • each roller lever itself has a drive cam which is only associated with it and which does not need to be moved axially.
  • the roller lever can be lifted off the associated cam and rendered ineffective without the cam needing to be axially displaced.
  • the associated thread tensioner or the associated thread brake for the following weft can be put into operation with the device according to the invention even at high speeds of 300-600 min-1 and more. The movements are carried out exactly.
  • the machine contains a warp beam 2, a tensioning beam 3, via which the warp threads 4 coming from the warp beam run in the direction of arrow 5 through shafts 6 and a reed 7 to the attachment point 8. From here, the fabric 9 is guided to a fabric tree 11 and wound thereon.
  • the machine has two weft supply bobbins 12, 13 of different thread types, e.g. Color presented, of which weft threads 15 or 16 are alternately entered into the shed via brakes 17, 18 and thread tensioners 19, 20 and a change organ 21 with the aid of a gripper projectile 22.
  • the changing device 21 contains an interchangeable segment 23 which can be pivoted about a shaft 47 (FIG. 2, 3) and contains two thread feeders 49a, b.
  • a weft thread e.g. transfer the thread 15 to the projectile 22 and then enter it in the shed.
  • the shaft 47 carries a two-armed lever 71, 72.
  • an up and down movable drive rod 73 for segment 23 engages, on arm 72 a control rod 31. This is moved back and forth according to arrow 33 in FIG. 3 when the interchangeable segment 23 is moved into position.
  • the control rod 31 carries a connector 30; this is articulated at 34 to a locking plate 36 pivotable by 35.
  • the pin 35 is mounted in the frame 37 of the weaving machine.
  • roller levers 44, 44b which serve to drive the two weft brakes 17, 18, are fastened on a drive shaft 41 (FIG. 4.5) that rotates continuously during weaving operation. 4 one of these cams is visible and designated 42, likewise one of the roller levers pivotable by 43 is visible and designated 44.
  • the roller lever 44 carries a roller 45 which is pressed under the action of a compression spring 46 against the cam 42.
  • An arm 47 is attached to the roller lever 44, in the pivoting path of which the locking plate 36 can be moved.
  • cams are fastened on the shaft 41, which serve to drive a roller lever 52 or 52b and an associated thread tensioner 19 or 20. 5 one of these cams is shown and designated 51.
  • One of the associated roller levers is also shown and designated 52.
  • the roller lever 52 carries a roller 5 3, which cooperates with the cam 51st
  • the roller lever 52 is under the action of a tension spring 50 engaging at 55, by means of which the roller 53 is pressed against the cam 51.
  • the roller lever 52 has an arm 56, in the pivoting path of which the locking plate 36 can be moved.
  • the arms 47 of the roller levers 44, 44b are above the locking plate 36, while the arms 56 of the roller levers 52, 52b are below arranged half of the locking plate 36.
  • the locking plate 36 is thereby loaded evenly from both sides.
  • roller lever 44 is pivoted into the position 44a when the cam 42 is moved from the position shown in FIG. 4 to the position 42a shown in broken lines.
  • the roller lever 44 follows the cam 42.
  • Roller 45 moves into position 45a, arm 47 into the position 47a shown in dash-dot lines.
  • the roller lever 52 follows the cam 51 into the position 52a shown in broken lines.
  • Roller 53 goes to the dot-dash position 53a and arm 56 to the dot-dash position 56a.
  • the thread brake 17 coupled to the roller lever 44 and the thread tensioner 19 connected to the roller lever 52 receive drive.
  • the parts 17, 19 are operated according to the program during the following weft insertion, whereby their thread 15 can be inserted into the compartment.
  • the parts 18, 20 are out of operation (locking their roller levers 44b, 52b).
  • the locking plate 36 is set back and forth by an electromagnet 61.
  • the electromagnet 61 receives current pulses or is de-energized, depending on which type of thread is desired for the following weft insertion.
  • the device can also be used for a changer with four or six different types of thread.
  • a correspondingly designed locking plate 36 and a corresponding number of roller levers for the four or six thread brakes and thread tensioners must then be provided.
  • the locking plate 36 can also be driven by a pneumatic or hydraulic drive cylinder 75 (FIG. 7) with a pressure piston 76.
  • a pneumatic or hydraulic drive cylinder 75 FIG. 7
  • a pressure piston 76 For example, in an air jet loom weaving machine it is expedient to actuate the locking plate by means of compressed air, in a water jet loom weaving machine it is actuated by means of pressurized water.
  • a reciprocating locking element 78 (Fig. 8) for the various roller levers can e.g. also be arranged on the edge 77 of the roller lever 44.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Surgical Instruments (AREA)

Abstract

The multiple pick system uses a drive for each control element. Each drive includes a roller lever which is pivotally mounted and driven by a cam mounted on the continuously rotating shaft of the machine. A locking member is movable into the path of the roller lever so as to prevent the roller on the lever from contacting the cam. The locking member serves to take out of operation the control elements for the weft yarn type which is not to be inserted while allowing the remaining control elements to be driven. The multiple pick system is especially suitable for high speeds.

Description

Die Erfindung betrifft eine Mehrschusseinrichtung für eine Webmaschine mit ausserhalb des Webfaches verbleibendem Schussfadenvorrat, welche Mehrschusseinrichtung ein Schussfaden-Wechselorgan und eine ihm vorgeschaltete Schussfaden-Zuführvorrichtung enthält, die mindestens zwei parallel liegende Faden-Beeinflussungselemente, z.B. Fadenbremsen und/oder Fadenspanner enthält, wovon vor jedem Schusseintrag die gewünschten Fadenbeeinflussungselemente gemäss einem Schusseintragsprogramm an einen Antrieb angekuppelt werden. Im folgenden sind als Schussfaden-Beeinflussungselemente beispielsweise Fadenbremsen oder Fadenspanner angenommen.The invention relates to a multi-weft device for a weaving machine with a weft thread supply remaining outside the shed, which multi-weft device contains a weft thread changing element and a weft thread feed device connected upstream thereof, which has at least two thread influencing elements lying in parallel, e.g. Thread brakes and / or thread tensioner contains, of which the desired thread influencing elements are coupled to a drive according to a weft insertion program before each weft insertion. In the following, thread brakes or thread tensioners, for example, are assumed to be weft influencing elements.

Bei einer bisherigen Einrichtung der genannten Art (CH-PS 332 438 = US-PS 2 817 367) ist auf einer für den Antrieb von Fadenspannern und Fadenbremsen bestimmten, kontinu-, ierlich rotierenden Antriebswelle eine Hülse angeordnet, welche axial verschiebbar ist und zwei Nocken besitzt. Während des Betriebs wird jeweils vor dem Schusseintrag die Nockenhülse so verschoben, dass ihre beiden Nocken unter die beiden Rollenhebel desjenigen Fadenspanners und der Fadenbremse gestellt sind, über welche der gewünschte Schussfaden einzutragen ist. Bei höheren Drehzahlen der Webmaschine von z.B. 300 min-1 und mehr bereitet diese Nockenhülse Schwierigkeiten, weil sie infolge der verhältnismässig grossen Masse für ihre Axialverschiebung relativ hohe Antriebkraft erfordert. Diese Antriebskraft lässt sich z.B. von einem im Antrieb des Schusswechselorgans liegenden Feder-Speicherelementes nicht mit Sicherheit aufbringen und die Büchse führt ihre axiale Verschiebbewegung nicht genügend exakt und genügend rasch aus.In a previous device of the type mentioned (CH-PS 332 438 = US-PS 2 817 367), a sleeve, which is axially displaceable and two cams, is arranged on a continuously rotating shaft which is intended for driving thread tensioners and thread brakes owns. During operation, the cam sleeve is shifted in such a way that both of its cams are placed under the two roller levers of the thread tensioner and the thread brake via which the desired weft thread is to be inserted. At higher speeds The loom of 300 rpm or more, for example, has difficulties with this cam sleeve because, due to the relatively large mass, it requires a relatively high driving force for its axial displacement. This driving force cannot be applied with certainty, for example, by a spring storage element located in the drive of the weft exchange member, and the bushing does not execute its axial displacement movement with sufficient accuracy and speed.

Der Erfindung liegt die Aufgabe zugrunde, eine besonders in dieser Hinsicht verbesserte Einrichtung zu schaffen, also ein auch bei hohen Drehzahlen betriebssicher arbeitendes Wechselorgan mit Antrieb der Fadenspanner und Fadenbremsen.The invention has for its object to provide a device which is particularly improved in this regard, that is to say an interchangeable member which operates reliably even at high speeds and is driven by the thread tensioner and thread brakes.

Die Erfindung besteht darin, dass der Antrieb jedes Faden-Beeinflussungselementes einen Nocken mit zugehörigem, unter Federwirkung stehendem Rollenhebel zur Betätigung des Elementes enthält, wobei in den Weg des Rollenhebels ein Sperrglied bewegbar ist zur Verhinderung der Nocken-Folgebewegung des Rollenhebels während Stillsetzzeiten des zugehörigen Beeinflussungselementes.The invention consists in the fact that the drive of each thread influencing element contains a cam with an associated, spring-loaded roller lever for actuating the element, a locking member being movable in the path of the roller lever to prevent the cam follower movement of the roller lever during stoppages of the associated influencing element .

Es lässt sich auf diese Weise vermeiden, dass immer dieselben Antriebsnocken aufgrund von Axialverschiebung einer Nockenhülse unter die anzutreibenden Rollenhebel geschoben werden. Vielmehr besitzt jeder Rollenhebel selbst einen nur ihm zugehörigen Antriebsnocken, der nicht axial verschoben zu werden braucht. Durch das Sperrglied kann der Rollenhebel von dem zugehörigen Nocken abgehoben und wirkungslos gemacht werden, ohne dass der Nocken axial verschoben zu werden braucht. Wie die Versuche ergeben, lässt sich mit der erfindungsgemässen Einrichtung auch bei hohen Drehzahlen von 300 - 600 min-1 und mehr ohne weiteres der zugehörige Fadenspanner bzw. die zugehörige Fadenbremse für den jeweils folgenden Schuss in Betrieb setzen. Die Bewegungen werden exakt ausgeführt.In this way it can be avoided that the same drive cams are always pushed under the roller levers to be driven due to the axial displacement of a cam sleeve. Rather, each roller lever itself has a drive cam which is only associated with it and which does not need to be moved axially. By means of the locking member, the roller lever can be lifted off the associated cam and rendered ineffective without the cam needing to be axially displaced. As the experiments show, the associated thread tensioner or the associated thread brake for the following weft can be put into operation with the device according to the invention even at high speeds of 300-600 min-1 and more. The movements are carried out exactly.

Weitere Merkmale ergeben sich aus der folgenden Beschreibung von Ausführungsbeispielen in Verbindung mit den Ansprüchen und der Zeichnung.

  • Fig. 1 ist eine Uebersichtsdarstellung einer Webmaschine mit erfindungsgemäss ausgebildeter Mehrschusseinrichtung, in Draufsicht,
  • Fig. 2 veranschaulicht in perspektivischer Darstellung die Mehrschusseinrichtung der Webmaschine,
  • Fig. 3 zeigt in Draufsicht einige Antriebsorgane Der Faden- beeinflussungselemente,
  • Fig. 4 ist ein Schnitt der wesentlichen Teile nach Linie IV - IV in Fig. 3,
  • Fig. 5 zeigt einen Schnitt der wesentlichen Teile nach Linie V - V in Fig. 3,
  • Fig. 6 eine gegenüber Fig. 3 abgewandelte Ausführungsform und
  • Fig. 7 und 8 veranschaulichen Details von weiteren Ausführungsbeispielen.
Further features emerge from the following description of exemplary embodiments in conjunction with the claims and the drawing.
  • 1 is a top view of a weaving machine with a multi-weft device designed according to the invention,
  • 2 illustrates in perspective the multi-weft device of the weaving machine,
  • 3 shows a top view of some drive elements of the thread influencing elements,
  • Fig. 4 is a section of the essential parts according to line IV - IV in Fig. 3,
  • 5 shows a section of the essential parts along line V - V in FIG. 3,
  • Fig. 6 an embodiment modified from Fig. 3 and
  • 7 and 8 illustrate details of further exemplary embodiments.

Die Webmaschine 1 nach Fig. 1 enthält einen Kettbaum 2, einen Spannbaum 3, über welchen die vom Kettbaum kommenden Kettfäden 4 in Richtung des Pfeiles 5 durch Schäfte 6 und ein Riet 7 zu der Anschlagstelle 8 laufen. Von hier aus wird das Gewebe 9 zu einem Warenbaum 11 geführt und darauf aufgewickelt. Der Maschine sind zwei Schussfadenvorratsspulen 12,13 verschiedener Fadensorte, z.B. Farbe vorgelegt, von denen wechselweise Schussfäden 15 oder 16 über Bremsen 17,18 und Fadenspanner 19,20 sowie ein Wechselorgan 21 mit Hilfe eines Greiferprojektils 22 in das Webfach eingetragen werden.1 contains a warp beam 2, a tensioning beam 3, via which the warp threads 4 coming from the warp beam run in the direction of arrow 5 through shafts 6 and a reed 7 to the attachment point 8. From here, the fabric 9 is guided to a fabric tree 11 and wound thereon. The machine has two weft supply bobbins 12, 13 of different thread types, e.g. Color presented, of which weft threads 15 or 16 are alternately entered into the shed via brakes 17, 18 and thread tensioners 19, 20 and a change organ 21 with the aid of a gripper projectile 22.

Die Wechselvorrichtung 21 enthält ein um eine Welle 47 (Fig. 2,3) schwenkbares, zwei Fadengeber 49a,b enthaltendes Wechselsegment 23. Durch die Fadengeber 49a,b wird jeweils ein Schussfaden, z.B. der Faden 15 dem Projektil 22 übergeben und anschliessend in das Webfach eingetragen.The changing device 21 contains an interchangeable segment 23 which can be pivoted about a shaft 47 (FIG. 2, 3) and contains two thread feeders 49a, b. A weft thread, e.g. transfer the thread 15 to the projectile 22 and then enter it in the shed.

Die Welle 47 trägt einen zweiarmigen Hebel 71,72. Am Arm 71 greift eine auf und ab bewegbare Antriebsstange 73 für das Segment 23 an, am Arm 72 eine Steuerstange 31. Diese wird gemäss Pfeil 33 in Fig. 3 hin und her verschoben, wenn das Wechselsegment 23 in Position bewegt wird. Die Steuerstange 31 trägt ein Anschlussstück 30; dieses ist bei 34 an eine um 35 schwenkbare Sperrplatte 36 angelenkt. Der Zapfen 35 ist im Gestell 37 der Webmaschine gelagert.The shaft 47 carries a two-armed lever 71, 72. On arm 71, an up and down movable drive rod 73 for segment 23 engages, on arm 72 a control rod 31. This is moved back and forth according to arrow 33 in FIG. 3 when the interchangeable segment 23 is moved into position. The control rod 31 carries a connector 30; this is articulated at 34 to a locking plate 36 pivotable by 35. The pin 35 is mounted in the frame 37 of the weaving machine.

Auf einer während des Webbetriebes kontinuierlich rotierenden Antriebswelle 41 (Fig.4,5) sind zwei Nocken für Rollenhebel 44,44b befestigt, welche für den Antrieb der beiden Schussfadenbremsen 17,18 dienen. In Fig. 4 ist einer dieser Nocken sichtbar und mit 42 bezeichnet, ebenso ist einer der um 43 schwenkbaren Rollenhebel sichtbar und mit 44 bezeichnet. Der Rollenhebel 44 trägt eine Rolle 45, welche unter der Wirkung einer Druckfeder 46 gegen den Nocken 42 gedrückt ist. An dem Rollenhebel 44 ist ein Arm 47 angebracht, in dessen Verschwenkweg die Sperrplatte 36 bewegt werden kann.Two cams for roller levers 44, 44b, which serve to drive the two weft brakes 17, 18, are fastened on a drive shaft 41 (FIG. 4.5) that rotates continuously during weaving operation. 4 one of these cams is visible and designated 42, likewise one of the roller levers pivotable by 43 is visible and designated 44. The roller lever 44 carries a roller 45 which is pressed under the action of a compression spring 46 against the cam 42. An arm 47 is attached to the roller lever 44, in the pivoting path of which the locking plate 36 can be moved.

Ferner sind auf der Welle 41 zwei Nocken befestigt, welche zum Antrieb je eines Rollenhebels 52 bzw. 52b und eines zugehörigen Fadenspanners 19 bzw. 20 dienen. In Fig. 5 ist einer dieser Nocken dargestellt und mit 51 bezeichnet. Auch von den zugehörigen Rollenhebeln ist einer dargestellt und mit 52 bezeichnet. Der Rollenhebel 52 trägt eine Rolle 53, welche mit dem Nocken 51 zusammenarbeitet. Der Rollenhebel 52 steht unter der Wirkung einer bei 55 angreifenden Zugfeder 50, durch welche die Rolle 53 an den Nocken 51 gedrückt wird.Furthermore, two cams are fastened on the shaft 41, which serve to drive a roller lever 52 or 52b and an associated thread tensioner 19 or 20. 5 one of these cams is shown and designated 51. One of the associated roller levers is also shown and designated 52. The roller lever 52 carries a roller 5 3, which cooperates with the cam 51st The roller lever 52 is under the action of a tension spring 50 engaging at 55, by means of which the roller 53 is pressed against the cam 51.

Der Rollenhebel 52 besitzt einen Arm 56, in dessen Verschwenkweg die Sperrplatte 36 bewegt werden kann. Die Arme 47 der Rollenhebel 44,44b sind oberhalb der Sperrplatte 36, die Arme 56 der Rollenhebel 52,52b sind dagegen unterhalb der Sperrplatte 36 angeordnet. Die Sperrplatte 36 wird dadurch von beiden Seiten her gleichmässig belastet.The roller lever 52 has an arm 56, in the pivoting path of which the locking plate 36 can be moved. The arms 47 of the roller levers 44, 44b are above the locking plate 36, while the arms 56 of the roller levers 52, 52b are below arranged half of the locking plate 36. The locking plate 36 is thereby loaded evenly from both sides.

Befindet sich vor einem Schusseintrag die Sperrplatte 36 in der in Fig. 3 ausgezogen dargestellten Position, so wird beim Bewegen des Nockens 42 aus der in Fig. 4 ausgezogenen Stellung in die strichpunktiert dargestellte Position 42a der Rollenhebel 44 in die Position 44a verschwenkt. Der Rollenhebel 44 folgt dem Nocken 42. Rolle 45 gelangt dabei in die Stellung 45a, Arm 47 in die strichpunktiert dargestellte Position 47a. Entsprechend folgt beim Weiterlauf des Nockens 51 in die Position 51a (Fig. 5) der Rollenhebel 52 dem Nocken 51 in die strichpunktiert dargestellte Position 52a. Rolle 53 geht in die strichpunktiert wiedergegebene Position 53a und Arm 56 in die strichpunktiert wiedergegebene Position 56a.If the locking plate 36 is in the position shown in the solid line in FIG. 3 before a weft insertion, the roller lever 44 is pivoted into the position 44a when the cam 42 is moved from the position shown in FIG. 4 to the position 42a shown in broken lines. The roller lever 44 follows the cam 42. Roller 45 moves into position 45a, arm 47 into the position 47a shown in dash-dot lines. Correspondingly, when the cam 51 continues to the position 51a (FIG. 5), the roller lever 52 follows the cam 51 into the position 52a shown in broken lines. Roller 53 goes to the dot-dash position 53a and arm 56 to the dot-dash position 56a.

Somit erhalten die am Rollenhebel 44 angekuppelte Fadenbremse 17 und der am Rollenhebel 52 angeschlossene Fadenspanner 19 Antrieb. Die Teile 17,19 werden programmgemäss beim folgenden Schusseintrag betätigt, wodurch ihr Faden 15 in das Fach eingetragen werden kann. Die Teile 18,20 sind dabei ausser Betrieb (Sperrung ihrer Rollenhebel 44b,52b).Thus, the thread brake 17 coupled to the roller lever 44 and the thread tensioner 19 connected to the roller lever 52 receive drive. The parts 17, 19 are operated according to the program during the following weft insertion, whereby their thread 15 can be inserted into the compartment. The parts 18, 20 are out of operation (locking their roller levers 44b, 52b).

Wenn die Sperrplatte 36 aufgrund der Bewegung des Wechslersegmentes 23 in die in Fig. 3 strichpunktiert eingezeichnete Stellung 36a bewegt wird, so sind die Arme 47, 56 der Rollenhebel 44,52 durch die Sperrplatte 36 gesperrt. Die zu den Rollenhebeln 44b,52b gehörenden Arme 47,56 sind freigegeben. Damit bleiben die beiden Rollenhebel 44,52, wenn die Nocken 42,51 in die strichpunktiert dargestellte Stellung 42a,51a gedreht werden, in der in Fig. 4 und 5 ausgezogen dargestellten Position (Sperrung). Somit sind die zugehörige Fadenbremse 17 und der zugehörige Fadenspanner 19 während des folgenden Schusseintrages ausser Betrieb, da sie keinen Antrieb erhalten. Dagegen erhalten die am Rollenhebel 44b angekuppelte Fadenbremse 18 und der am Rollenhebel 52b angeschlossene Fadenspanner 20 Antrieb, so dass der durch sie geführte Schussfaden 16 eingetragen werden kann.If the locking plate 36 is moved to the position 36a shown in broken lines in FIG. 3 due to the movement of the changer segment 23, the arms 47, 56 of the roller levers 44, 52 are locked by the locking plate 36. The arms 47, 56 belonging to the roller levers 44b, 52b are released. Thus, the two roller levers 44, 52, when the cams 42, 51 are rotated into the position 42a, 51a shown in broken lines, remain in the position shown in solid lines in FIGS. 4 and 5 (locking). Thus, the associated thread brake 17 and the associated thread tensioner 19 are during the following weft insertion Ges out of operation, since they do not receive any drive. In contrast, the thread brake 18 coupled to the roller lever 44b and the thread tensioner 20 connected to the roller lever 52b receive drive, so that the weft thread 16 guided through them can be inserted.

Bei der Bauart nach Fig. 6 wird die Sperrplatte 36 von einem Elektromagnet 61 in Hin- und Herbewegung versetzt. Der Elektromagnet 61 erhält programmgemäss Stromimpulse oder wird stromlos, je nachdem, welche Fadensorte für den folgenden Schusseintrag gewünscht wird.6, the locking plate 36 is set back and forth by an electromagnet 61. According to the program, the electromagnet 61 receives current pulses or is de-energized, depending on which type of thread is desired for the following weft insertion.

Die Einrichtung kann auch für ein Wechselorgan mit vier oder sechs verschiedenen Fadensorten verwendet werden. Es muss dann eine entsprechend ausgebildete Sperrplatte 36 und eine entsprechende Anzahl von Rollenhebeln für die vier bzw. sechs Fadenbremsen und Fadenspanner vorgesehen werden.The device can also be used for a changer with four or six different types of thread. A correspondingly designed locking plate 36 and a corresponding number of roller levers for the four or six thread brakes and thread tensioners must then be provided.

Die Sperrplatte 36 kann auch durch einen pneumatischen oder hydraulischen Antriebszylinder 75 (Fig. 7) mit Druckkolben 76 angetrieben werden. Zum Beispiel ist bei einer Luftstrahleintrag-Webmaschine zweckmässig, die Sperrplatte mittels Druckluft, bei einer Wasserstrahleintrag-Webmaschine sie mittels Druckwasser zu betätigen.The locking plate 36 can also be driven by a pneumatic or hydraulic drive cylinder 75 (FIG. 7) with a pressure piston 76. For example, in an air jet loom weaving machine it is expedient to actuate the locking plate by means of compressed air, in a water jet loom weaving machine it is actuated by means of pressurized water.

Ein hin und her bewegliches Sperrelement 78 (Fig. 8) für die verschiedenen Rollenhebel kann z.B. auch an der Kante 77 des Rollenhebels 44 angeordnet sein.A reciprocating locking element 78 (Fig. 8) for the various roller levers can e.g. also be arranged on the edge 77 of the roller lever 44.

Claims (5)

1. Mehrschusseinrichtung für eine Webmaschine mit ausserhalb des Webfaches verbleibendem Schussfadenvorrat, welche Mehrschusseinrichtung ein Schussfaden-Wechselorgan und eine ihm vorgeschaltete Schussfaden-Zuführvorrichtung enthält, die mindestens zwei parallel liegende Faden-Beeinflussungselemente, z.B. Fadenbremsen und/oder Fadenspanner enthält, wovon vor jedem Schusseintrag die gewünschten Fadenbeeinflussungselemente gemäss einem Schusseintragsprogramm an einen Antrieb angekuppelt werden, dadurch gekennzeichnet , dass der Antrieb jedes Faden-Beeinflussungselementes (17 - 20) einen Nocken (42,51) mit zugehörigem, unter Federwirkung (46,56) stehendem Rollenhebel (44,52,44b,52b) zur Betätigung des Elementes (17 - 20) enthält, wobei in den Weg des Rollenhebels (44,52,44b,52b) ein Sperrglied (36) bewegbar ist zur Verhinderung der Nocken-Folgebewegung des Rollenhebels (44,52, 44b,52b) während Stillsetzzeiten des zugehörigen Beeinflussungselementes (17 - 20).1. Multi-weft device for a weaving machine with a weft thread supply remaining outside the shed, which multi-weft device contains a weft thread changing element and a weft thread feed device connected upstream of it, which has at least two parallel thread influencing elements, e.g. Thread brakes and / or thread tensioner, of which the desired thread influencing elements are coupled to a drive according to a weft insertion program before each weft insertion, characterized in that the drive of each thread influencing element (17-20) has a cam (42, 51) with an associated spring action (46,56) standing roller lever (44,52,44b, 52b) for actuating the element (17 - 20), wherein in the path of the roller lever (44,52,44b, 52b) a locking member (36) is movable for Prevention of the cam follower movement of the roller lever (44, 52, 44b, 52b) during stoppages of the associated influencing element (17-20). 2. Einrichtung nach Anspruch 1, dadurch gekennzeichnet, dass das Sperrglied eine um eine Achse (35) schwenkbare Platte (36) ist, welche wahlweise programmgemäss in den Weg eines Ansatzes (47,56) mindestens eines zugehörigen Rollenhebels (44,52,44b,52b) bewegbar ist.2. Device according to claim 1, characterized in that the locking member is a pivotable about an axis (35) plate (36), which optionally according to the program in the way of an approach (47,56) at least one associated roller lever (44,52,44b , 52b) is movable. 3. Einrichtung nach Anspruch 2, dadurch gekennzeichnet, dass beidseits der Sperrplatte (36) in gleicher Anzahl Ansätze (47,56) der Rollenhebel (44,52,44b,52b) der Beeinflussungselemente (17 - 20) angeordnet sind, derart, dass bei Sperrwirkung die Sperrplatte (36) beidseits beaufschlagt ist.3. Device according to claim 2, characterized in that on both sides of the locking plate (36) in the same number of approaches (47,56) of the roller levers (44,52,44b, 52b) of the influencing elements (17-20) are arranged such that the locking plate (36) is acted upon on both sides in the event of a locking effect. 4. Einrichtung nach einem der Ansprüche 1 - 3, dadurch gekennzeichnet, dass das Sperrglied (36) von dem Schussfaden- wechselorgan aus gesteuert ist.4. Device according to one of claims 1-3, characterized in that the locking member (36) is controlled by the weft thread changing member. 5. Einrichtung nach einem der Ansprüche 1 - 3, dadurch gekennzeichnet, dass das Sperrglied (36) von einem Elektromagnet (61) aus gesteuert ist.5. Device according to one of claims 1-3, characterized in that the locking member (36) is controlled by an electromagnet (61).
EP79105381A 1979-12-27 1979-12-27 Multiple weft mechanism for a weaving machine Expired EP0031853B1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
EP79105381A EP0031853B1 (en) 1979-12-27 1979-12-27 Multiple weft mechanism for a weaving machine
AT79105381T ATE4603T1 (en) 1979-12-27 1979-12-27 MULTIPLE WEFT DEVICE FOR A WEAVING MACHINE.
DE7979105381T DE2966149D1 (en) 1979-12-27 1979-12-27 Multiple weft mechanism for a weaving machine
US06/212,421 US4382455A (en) 1979-12-27 1980-12-03 Multiple pick system for a weaving machine
SU803215948A SU1071230A3 (en) 1979-12-27 1980-12-12 Weft pattern forming motion for shuttleless loom
CS809153A CS227321B2 (en) 1979-12-27 1980-12-22 Multi-weft apparatus for weaving looms
BR8008471A BR8008471A (en) 1979-12-27 1980-12-23 MULTIPLE PLOT INJECTOR SET FOR A TEAR
JP18419180A JPS56101948A (en) 1979-12-27 1980-12-26 Dual pick apparatus for loom

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP79105381A EP0031853B1 (en) 1979-12-27 1979-12-27 Multiple weft mechanism for a weaving machine

Publications (2)

Publication Number Publication Date
EP0031853A1 true EP0031853A1 (en) 1981-07-15
EP0031853B1 EP0031853B1 (en) 1983-09-07

Family

ID=8186262

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79105381A Expired EP0031853B1 (en) 1979-12-27 1979-12-27 Multiple weft mechanism for a weaving machine

Country Status (8)

Country Link
US (1) US4382455A (en)
EP (1) EP0031853B1 (en)
JP (1) JPS56101948A (en)
AT (1) ATE4603T1 (en)
BR (1) BR8008471A (en)
CS (1) CS227321B2 (en)
DE (1) DE2966149D1 (en)
SU (1) SU1071230A3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0458735A1 (en) * 1990-05-21 1991-11-27 Gebrüder Sulzer Aktiengesellschaft Weft thread tensioner for multiple weft projectile looms

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH332438A (en) * 1953-10-17 1958-09-15 Sulzer Ag Loom
CH480474A (en) * 1967-09-26 1969-10-31 Sulzer Ag Method for the weft-side monitoring of several weft threads on weaving machines and device for carrying out the method
DE1785076A1 (en) * 1968-08-07 1972-01-20 Abk Appbau Krefeld Gmbh Color control device for looms
DE2644648A1 (en) * 1975-10-03 1977-04-14 Somet Soc Mec Tessile DEVICE FOR DISPLAYING AND TRANSFERRING THE WEFT THREAD FOR WEAVING MACHINES WITH CONTINUOUS WEFT FEEDING
DE2644909B2 (en) * 1975-10-05 1979-09-13 Nissan Motor Co., Ltd., Yokohama, Kanagawa (Japan) Device for the selective shooting in of weft threads in the shed of a loom

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Publication number Priority date Publication date Assignee Title
US2817367A (en) * 1953-10-17 1957-12-24 Sulzer Ag Weaving machine
DE1009568B (en) * 1954-04-03 1957-05-29 Sulzer Ag Loom
US3276482A (en) * 1963-04-10 1966-10-04 Jean Gusken Maschinenfabrik Ei Web thread changing device for web-loom
JPS504789B1 (en) * 1967-09-09 1975-02-24
US3511284A (en) * 1968-07-30 1970-05-12 North American Rockwell Filling selective device for shuttleless looms
JPS566977B2 (en) * 1973-05-29 1981-02-14

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH332438A (en) * 1953-10-17 1958-09-15 Sulzer Ag Loom
CH480474A (en) * 1967-09-26 1969-10-31 Sulzer Ag Method for the weft-side monitoring of several weft threads on weaving machines and device for carrying out the method
DE1785076A1 (en) * 1968-08-07 1972-01-20 Abk Appbau Krefeld Gmbh Color control device for looms
DE2644648A1 (en) * 1975-10-03 1977-04-14 Somet Soc Mec Tessile DEVICE FOR DISPLAYING AND TRANSFERRING THE WEFT THREAD FOR WEAVING MACHINES WITH CONTINUOUS WEFT FEEDING
DE2644909B2 (en) * 1975-10-05 1979-09-13 Nissan Motor Co., Ltd., Yokohama, Kanagawa (Japan) Device for the selective shooting in of weft threads in the shed of a loom

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0458735A1 (en) * 1990-05-21 1991-11-27 Gebrüder Sulzer Aktiengesellschaft Weft thread tensioner for multiple weft projectile looms

Also Published As

Publication number Publication date
US4382455A (en) 1983-05-10
BR8008471A (en) 1981-07-14
CS227321B2 (en) 1984-04-16
SU1071230A3 (en) 1984-01-30
EP0031853B1 (en) 1983-09-07
DE2966149D1 (en) 1983-10-13
JPS56101948A (en) 1981-08-14
ATE4603T1 (en) 1983-09-15

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