EP0529025B1 - Shedding device for a textile machine - Google Patents

Shedding device for a textile machine Download PDF

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Publication number
EP0529025B1
EP0529025B1 EP92905339A EP92905339A EP0529025B1 EP 0529025 B1 EP0529025 B1 EP 0529025B1 EP 92905339 A EP92905339 A EP 92905339A EP 92905339 A EP92905339 A EP 92905339A EP 0529025 B1 EP0529025 B1 EP 0529025B1
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EP
European Patent Office
Prior art keywords
pulling
insertion device
pulling element
traction elements
elements
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP92905339A
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German (de)
French (fr)
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EP0529025A1 (en
Inventor
Francisco Speich
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Textilma AG
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Textilma AG
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Publication date
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Publication of EP0529025A1 publication Critical patent/EP0529025A1/en
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    • DTEXTILES; PAPER
    • D03WEAVING
    • D03CSHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C3/00Jacquards
    • D03C3/20Electrically-operated jacquards

Definitions

  • the present invention relates to a shedding device according to the preamble of claim 1.
  • a shedding device in which the traction element contains a support foot which is received in the sub-compartment position by a trough-shaped recess of a stationary support bar.
  • the electromagnet There is a relatively large distance between the electromagnet and the traction element, so that the traction element must be pivoted towards the electromagnet by the lifting knife and must be pivoted back through the harness when the electromagnet is not energized.
  • This constant back and forth swiveling of the tension member there is noise and there is friction between the tension member and the support foot on the one hand and between the tension member and the lifting knife on the other hand, which leads to the wear of one or the other part, which is a disadvantage.
  • Another weak point is that the restoring force of the pulling element has to be applied by the harness pull. Because the frictional force between the support bar and the support foot counteracts this, the harness pull has to be tightened more than is actually necessary.
  • EP-A 119 787 describes a reading device which is arranged in the upper compartment position.
  • the read-in device has a section for guiding the pulling member, a section with a holding member for holding the pulling member in the upper compartment position, and a section with an electromagnet for bringing the pulling member into and out of engagement with the holding member.
  • the pulling element is only guided in the area of the reading device and at a relatively large distance from the holding element, so that the pulling element is pivoted by the electromagnet to the holding element or away from the holding element.
  • the power of the electromagnet must be designed to be correspondingly strong, and the lifting knife or the circuit board must perform an overstroke in order to attach and remove the pulling member in or out of the holding member. Another consequence is a high noise level and high wear.
  • the aim of the invention is to further develop a shedding device in such a way that the disadvantages of the known devices are eliminated and that the vibrations generated by the reading-in process are low and that the armor retraction force is reduced.
  • a shedding device of the type in question contains a kinematic connecting element 1, which connects traction elements, a roller train 2 with a first disc 3, around which the connecting element 1 is guided, and a second disc 4, which is connected to the first disc 3 via web parts 5 is connected, a cord 6 which is guided around the second pulley 4 and connected to the heald 7 for guiding warp threads, and a return spring 8 which is attached to the end of the heald 7. The other end of the cord 6 is connected to the machine frame.
  • the shed forming device further comprises two lifting knives which can be moved up and down in opposite directions, two pulling elements which can be moved up and down between a lower and upper shed position, and an electrically controllable magnetic reading device with control device.
  • the lifting knives, traction elements and reading device are based on the accompanying drawings for the exemplary embodiments of shedding devices according to the invention described individually.
  • FIG. 1 and 2 show a first exemplary embodiment of a reading device.
  • This reading device 12 has two electromagnets 13, 14 and two pole plates 15, 16 and a holder 17.
  • Each electromagnet consists of a cylindrical core 18 and a winding 19 which is wound on the core ( Figure 2).
  • Each pole plate 15, 16 has a U-shaped cross section that tapers over the length of the pole plate, so that the legs 20, 21 form oblique surfaces.
  • the pole plates 15, 16 are arranged such that the leg ends are opposite one another at a distance.
  • the electromagnets 13, 14 are arranged between the pole plates 15, 16.
  • the electromagnets 13, 14 and the pole plates 15, 16 are connected by a plastic compound 22 which fills the cavities between the pole plates and the gap between the leg ends. This creates a wedge-shaped unit with two sloping surfaces.
  • a section of a pulling element 42 is attracted when the electromagnets 13, 14 are energized, so that this section bears against the inclined surfaces which are formed by the outer surface of the pole plate legs 20, 21.
  • the pole plate legs 20, 21 form pole regions 23 and 24, so that the field lines 25 of the electromagnets are directed in the transverse direction of the pulling element 42.
  • a base edge 17a is formed by the lower, broad part of this reading device 12.
  • FIG. 3 shows a second exemplary embodiment of a reading device.
  • This reading device 31 has an electromagnet 32 and a holder 33 for the electromagnet.
  • the electromagnet 32 consists of a double-T-shaped core 34 and a winding 35.
  • the core 34 has a web part on which the winding is arranged in an insulated manner and a wide base flange 36 and a narrow flange 37 which face the traction elements 42 Sides have inclined surfaces, which have defined pole areas 38 and 39 and thus the base edge 17a form.
  • a section of the pulling element 42 is attracted when the electromagnet 32 is excited, so that this section lies against the inclined surfaces of the flanges 36, 37 of the core 34, the field lines 40 being directed in the longitudinal direction of the pulling element 42.
  • the magnetic circuit is short-circuited, so that the current consumption of the electromagnet 32 is advantageously reduced.
  • the shedding device according to the invention shown in FIGS. 4 to 7 contains two lifting knives 41, which are moved up and down in opposite directions by a drive device, not shown, two pulling elements 42, which can be brought into and out of engagement with the lifting knives 41, one in FIGS. 1 and 2 Read device 12 shown with a circuit 58, not shown, which is arranged in the lower compartment position of the pulling members 42 and two guide parts 43, 44, between which the reading device 12 is arranged such that the pulling members 42 with respect to the pole areas (23, 24) of the Reading device 12 assume a defined position ( Figure 1). In this position there is an air gap A between the base edge 17a of the pole areas and the tension member 42, the width of which is advantageously almost zero (FIG. 6). In order to improve the guidance of the traction elements 4, trough-shaped depressions can be provided in the guide parts 43, 44.
  • the tension member 42 is strip-shaped. At the lower end, the tension member 42 is connected to the kinematic connection member 1. The upper end is designed as a hook-shaped section 45 which can be brought into and out of engagement with the lifting knife 41.
  • the traction element 42 is divided into a coupling part 46 which adjoins the hook-shaped section 45 and is divided into a guide part 47 adjoining it.
  • a stop part 48 is arranged in the guide part 47, which rests, for example, on a stop board 49 when the pulling element 42 is in the lower compartment position (FIG. 4).
  • the leadership part 47 is guided in an opening 50 in the bulletin board 49.
  • the tension member 42 can be made of metal which is magnetizable. It is also possible to use a traction element made of plastic material, wherein the coupling section 46 can consist of magnetizable material or must contain such a material.
  • the lifting knives 41 are provided with a longitudinal edge with two parallel sections 51, 52, into which the hook-shaped sections 45 hook.
  • a tension spring 53 is attached to the roller train 2 in order to prestress the tension members 42 in the direction of the compartment to be formed.
  • the tension member 42 is integrally formed. However, it is possible to design the pulling element in two parts, the coupling part 46 and the guide part 47 being connected to one another as separate parts by suitable means.
  • the shed forming device is provided with a reset device 55 in order to lift the coupling part 46 of the pulling element 42 from the reading device 12 when the electromagnets 13, 14 (FIG. 1) are not energized.
  • the reset device can consist of a holder 56 and a leaf spring 57 and e.g. be mounted on the reading device 12.
  • FIGS. 8 to 11 show a further exemplary embodiment of a shedding device according to the invention.
  • the shedding device is designed in a space-saving design and contains two lifting knives 101, two pulling elements 102, guide parts 103 for the lifting knives, a reading device 12 shown in FIG. 1 and two guides 104, between which the reading device 12 is arranged such that the pulling elements 102 are opposite to the Pole areas 23, 24 (Fig. 1) assume a defined position.
  • the guide 104 is designed such that the pulling element 102 is guided at the lower base edge 17a of the reading device 12, as a result of which the pulling element 102 is in contact with the pole areas 23, 24 with the smallest air gap. It proves to be particularly advantageous that the pulling element 102 extends obliquely with respect to the base area of the reading device 12. A defined restoring force of the coupling part 110 is thereby achieved.
  • the tension member 102 is strip-shaped and consists of an elastically deformable material.
  • the traction element consists of a narrow section 105, on the free end of which the connecting element 1 is attached, and a wide section 106, the free end of which has a section 107 inclined with respect to the plane of the strip. A rectangular recess 108 is formed below this section 107.
  • the two sections 105 and 106 form a shoulder 109 on the pulling element, which rests on the notice board 49 when the pulling element 102 is in the lower compartment position.
  • the tension member is divided into the coupling part 110 and a guide part 111.
  • the lifting knife 101 has on its downward narrow side an attachment 112 with hook-shaped sections 113 which protrude from the side surfaces of the attachment and can be brought into and out of engagement with the recesses 108 in the pulling element.
  • a protruding surface 114 is formed by the projecting sections 113.
  • An enlarged section 116 with inclined surfaces 117 adjoins section 112, which merges into the head part of the lifting knife 101.
  • the inclined section 107 of the pulling element is placed against the inclined surface 117, and due to the continuous downward movement of the lifting knife, the coupling part 110 is deflected and against the pole regions 23, 24 (FIG. 1) of the reading device 12.
  • FIGS. 12 and 13 show a further exemplary embodiment of a shedding device according to the invention.
  • the shed forming device contains two lifting knives 120, two pulling elements 121 and a reading device 12 shown in FIG. 1, which is arranged in such a way that it lies between the pulling elements 121 when the latter are in the lower shed position. In this sub-compartment position, the traction elements assume a defined position with respect to the pole regions 23, 24 (FIG. 1).
  • the traction element 121 contains a strip-shaped guide part 122 and a strip-shaped coupling part 123 which is fastened to the guide part 122.
  • the guide part 122 is connected at one end to the kinematic connecting element 1.
  • a rectangular recess 125 is provided in the area of the other end.
  • the guide part 122 advantageously consists of a material that cannot be magnetized.
  • Each pulling element 121 has a stop part 54, which is fastened to the guide part 122, projecting outwards from the lifting knife 120, and which rests on the stop board 49 when the pulling element 121 is in the lower compartment position, or which ensures that the lifting knife 120 inevitably pulls the pulling element 121 moved to the sub-compartment position.
  • the coupling part 123 has a hook-shaped section 126 at one end, which can protrude through the recess 125.
  • the coupling part 123 consists of elastically deformable material that can be magnetized and can be pivoted toward the magnetic pole 23, 24. In this traction element 121, the two-part embodiment proves to be particularly advantageous because no magnetic attraction force is exerted on the guide part 122.
  • a guide element 127 is arranged above the reading device 12, against which the coupling parts 123 rest when the pulling element 121 is in the surface position stands.
  • An opening 128 is provided in the bulletin board 46, in which the guide part 122 is guided during the up and down movement. This results in a double guidance for the pulling element 121.
  • the guidance can be improved if a channel-shaped recess is provided in the guide element 127, which receives the coupling part 123 during the upward and downward movement of the pulling element, so that the guiding part 122 on the edges Management body 127 is performed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Blinds (AREA)
  • Looms (AREA)
  • Electromagnets (AREA)
  • Devices For Checking Fares Or Tickets At Control Points (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Percussion Or Vibration Massage (AREA)

Abstract

A shedding device for a textile machine contains two lifting blades (41) which move to and fro antagonistically, two traction elements which can be engaged and disengaged with the lifting blades (41), an insertion device (31) with a wedge-shaped basic shape in the path of the traction elements, whose sloping surfaces are opposite the traction elements and which swivels the traction elements with respect to the lifting blade in the lower shed position, and two guide devices (43, 44) which guide the traction elements (42) relative to the insertion device in a defined air gap layer not greater than 1 mm at the edge of the base of the electromagnet. As a result of this defined position and of the insertion and withdrawal of the traction elements from the lower shed position, the power of the electromagnets and of the shedding machine can generally be markedly reduced with a reliable switching function at high frequency up to 2500 min-1.

Description

Die vorliegende Erfindung betrifft eine Fachbildevorrichtung gemäss dem Oberbegriff des Anspruchs 1.The present invention relates to a shedding device according to the preamble of claim 1.

Aus der EP-A-348 338 ist eine Fachbildevorrichtung bekannt, bei der das Zugorgan einen Stützfuss enthält, der in der Unterfachstellung von einer rinnenförmigen Ausnehmung einer ortsfesten Stützleiste aufgenommen wird. Zwischen dem Elektromagnet und dem Zugorgan ist ein verhältnismässig grosser Abstand vorhanden, so dass das Zugorgan durch das Hubmesser zwangsweise gegen den Elektromagneten hin verschwenkt und bei nicht erregtem Elektromagnet durch den Harnischzug zurückgeschwenkt werden muss. Bei diesem ständigen Hin- und Her-Schwenken des Zugorgans entsteht Lärm und es tritt eine Reibung zwischen dem Zugorgan und dem Stützfuss einerseits und zwischen dem Zugorgan und dem Hubmesser andererseits auf, welche zur Abnutzung des einen oder anderen Teiles führt, was ein Nachteil ist. Ein weiterer Schwachpunkt besteht darin, dass die Rückstellkraft des Zugorgans durch den Harnischzug aufgebracht werden muss. Weil die Reibkraft zwischen Stützleiste und Stützfuss dem entgegenwirkt, muss der Harnischzug stärker als eigentlich erforderlich gespannt werden.From EP-A-348 338 a shedding device is known in which the traction element contains a support foot which is received in the sub-compartment position by a trough-shaped recess of a stationary support bar. There is a relatively large distance between the electromagnet and the traction element, so that the traction element must be pivoted towards the electromagnet by the lifting knife and must be pivoted back through the harness when the electromagnet is not energized. During this constant back and forth swiveling of the tension member there is noise and there is friction between the tension member and the support foot on the one hand and between the tension member and the lifting knife on the other hand, which leads to the wear of one or the other part, which is a disadvantage. Another weak point is that the restoring force of the pulling element has to be applied by the harness pull. Because the frictional force between the support bar and the support foot counteracts this, the harness pull has to be tightened more than is actually necessary.

In der EP-A 119 787 ist eine Einlesevorrichtung beschrieben, die in der Oberfachstellung angeordnet ist. Die Einlesevorrichtung hat einen Abschnitt, um das Zugorgan zu führen, einen Abschnitt mit einem Festhalteorgan, um das Zugorgan in der Oberfachstellung zu halten, und einen Abschnitt mit einem Elektromagneten, um das Zugorgan mit dem Festhalteorgan in und ausser Eingriff zu bringen. Bei dieser Einlesevorrichtung wird das Zugorgan lediglich im Bereich der Einlesevorrichtung und mit verhältnismässig grossem Abstand zum Festhalteorgan geführt, so dass das Zugorgan durch den Elektromagneten zum Festhalteorgan hin oder vom Festhalteorgan weg geschwenkt wird. Dadurch muss die Leistung des Elektromagneten entsprechend stark ausgelegt werden, und das Hubmesser bzw. die Platine muss zum Ein- und Aushängen des Zugorgans in oder aus dem Festhalteorgan einen Ueberhub ausführen. Weitere Folgen sind ein hoher Lärmpegel und hoher Verschleiss.EP-A 119 787 describes a reading device which is arranged in the upper compartment position. The read-in device has a section for guiding the pulling member, a section with a holding member for holding the pulling member in the upper compartment position, and a section with an electromagnet for bringing the pulling member into and out of engagement with the holding member. With this reading device, the pulling element is only guided in the area of the reading device and at a relatively large distance from the holding element, so that the pulling element is pivoted by the electromagnet to the holding element or away from the holding element. As a result, the power of the electromagnet must be designed to be correspondingly strong, and the lifting knife or the circuit board must perform an overstroke in order to attach and remove the pulling member in or out of the holding member. Another consequence is a high noise level and high wear.

Ziel der Erfindung ist, eine Fachbildevorrichtung so weiter zu entwickeln, dass die Nachteile der bekannten Vorrichtungen behoben sind und dass die durch den Einlesevorgang erzeugten Schwingungen gering sind und dass die Harnischrückzugkraft verringert wird.The aim of the invention is to further develop a shedding device in such a way that the disadvantages of the known devices are eliminated and that the vibrations generated by the reading-in process are low and that the armor retraction force is reduced.

Dieses Ziel wird erfindungsgemäss mit den kennzeichnenden Merkmalen des Anspruchs 1 erreicht.This aim is achieved according to the invention with the characterizing features of claim 1.

Die mit der Erfindung erzielbaren Vorteile sind im wesentlichen darin zu sehen, dass

  • eine Drehzahl von 2500 min erreicht wird,
  • eine erhebliche Lärmreduktion erzielt wird, und
  • eine starke Herabsetzung des Verschleisses von Zugorganen, Einlesevorrichtung, Flaschenzügen, Schnüren und Harnischen erzielt wird.
The advantages that can be achieved with the invention can essentially be seen in the fact that
  • a speed of 2500 min is reached,
  • a significant reduction in noise is achieved, and
  • a strong reduction in the wear of traction elements, reading devices, pulley blocks, cords and harnesses is achieved.

Es zeigen:

  • Figur 1 eine räumliche dargestellte Ansicht eines ersten Ausführungsbeispiels einer erfindungsgemässen Einlesevorrichtung,
  • Figur 2 einen Schnitt entlang der Linie II-II in Figur 1,
  • Figur 3 eine räumliche Ansicht eines zweiten Ausführungsbeispiels einer erfindungsgemässen Einlesevorrichtung, und
  • Figuren 4-13 Ausführungsbeispiele einer erfindungsgemässen Fachbildevorrichtung.
Show it:
  • FIG. 1 shows a three-dimensional view of a first exemplary embodiment of a reading device according to the invention,
  • FIG. 2 shows a section along the line II-II in FIG. 1,
  • FIG. 3 shows a spatial view of a second exemplary embodiment of a reading device according to the invention, and
  • Figures 4-13 embodiments of a shedding device according to the invention.

Eine Fachbildevorrichtung der hier in Rede stehenden Art enthält ein kinematisches Verbindungsorgan 1, welches Zugorgane verbindet, einen Rollenzug 2 mit einer ersten Scheibe 3, um welche das Verbindungsorgan 1 geführt ist, und einer zweiten Scheibe 4, die über Stegteile 5 mit der ersten Scheibe 3 verbunden ist, eine Schnur 6, die um die zweite Scheibe 4 geführt und mit der Weblitze 7 zur Führung von Kettfäden verbunden ist, und eine Rückzugfeder 8, die am Ende der Litze 7 befestigt ist. Das andere Ende der Schnur 6 ist mit dem Maschinengestell verbunden.A shedding device of the type in question contains a kinematic connecting element 1, which connects traction elements, a roller train 2 with a first disc 3, around which the connecting element 1 is guided, and a second disc 4, which is connected to the first disc 3 via web parts 5 is connected, a cord 6 which is guided around the second pulley 4 and connected to the heald 7 for guiding warp threads, and a return spring 8 which is attached to the end of the heald 7. The other end of the cord 6 is connected to the machine frame.

Die Fachbildevorrichtung umfasst ferner zwei Hubmesser, die gegenläufig auf- und abbewegbar sind, zwei Zugorgane, die zwischen einer Unter- und Oberfachstellung auf- und abbewegbar sind, und eine elektrisch ansteuerbare magnetische Einlesevorrichtung mit Steuereinrichtung.The shed forming device further comprises two lifting knives which can be moved up and down in opposite directions, two pulling elements which can be moved up and down between a lower and upper shed position, and an electrically controllable magnetic reading device with control device.

Die Hubmesser, Zugorgane und Einlesevorrichtung werden anhand der beiliegenden Zeichnungen für die erfindungsgemässen Ausführungsbeispiele von Fachbildevorrichtungen einzeln beschrieben.The lifting knives, traction elements and reading device are based on the accompanying drawings for the exemplary embodiments of shedding devices according to the invention described individually.

In den Figuren 1 und 2 ist ein erstes Ausführungsbeispiel einer Einlesevorrichtung gezeigt. Diese Einlesevorrichtung 12 weist zwei Elektromagneten 13,14 und zwei Polplatten 15,16 sowie einen Halter 17 auf. Jeder Elektromagnet besteht aus einem zylindrischen Kern 18 und einer Wicklung 19, die auf den Kern gewickelt ist (Figur 2).1 and 2 show a first exemplary embodiment of a reading device. This reading device 12 has two electromagnets 13, 14 and two pole plates 15, 16 and a holder 17. Each electromagnet consists of a cylindrical core 18 and a winding 19 which is wound on the core (Figure 2).

Jede Polplatte 15,16 hat einen U-förmigen Querschnitt, der sich über die Länge der Polplatte verjüngt, so dass die Schenkel 20,21 schräge Flächen bilden. Die Polplatten 15,16 sind so angeordnet, dass die Schenkelenden mit Abstand einander gegenüberliegen. Zwischen den Polplatten 15,16 sind die Elektromagnete 13,14 angeordnet. Die Elektromagnete 13,14 und die Polplatten 15,16 sind durch eine Kunststoffmasse 22 verbunden, die die Hohlräume zwischen den Polplatten und dem Spalt zwischen den Schenkelenden ausfüllt. Dadurch entsteht eine keilförmige Einheit mit zwei schrägen Flächen.Each pole plate 15, 16 has a U-shaped cross section that tapers over the length of the pole plate, so that the legs 20, 21 form oblique surfaces. The pole plates 15, 16 are arranged such that the leg ends are opposite one another at a distance. The electromagnets 13, 14 are arranged between the pole plates 15, 16. The electromagnets 13, 14 and the pole plates 15, 16 are connected by a plastic compound 22 which fills the cavities between the pole plates and the gap between the leg ends. This creates a wedge-shaped unit with two sloping surfaces.

Wie in Figur 1 angedeutet, wird ein Abschnitt eines Zugorgans 42 bei erregten Elektromagneten 13,14 angezogen, so dass sich dieser Abschnitt an die schrägen Flächen anlegt, die durch die Aussenfläche der Polplattenschenkel 20,21 gebildet werden. In diesem Fall bilden die Polplattenschenkel 20,21 Polbereiche 23 und 24, so dass die Feldlinien 25 der Elektromagnete in Querrichtung des Zugorgans 42 gerichtet sind. Durch den unteren breiten Teil dieser Einlesevorrichtung 12 wird eine Basiskante 17a gebildet.As indicated in FIG. 1, a section of a pulling element 42 is attracted when the electromagnets 13, 14 are energized, so that this section bears against the inclined surfaces which are formed by the outer surface of the pole plate legs 20, 21. In this case, the pole plate legs 20, 21 form pole regions 23 and 24, so that the field lines 25 of the electromagnets are directed in the transverse direction of the pulling element 42. A base edge 17a is formed by the lower, broad part of this reading device 12.

Die Figur 3 zeigt ein zweites Ausführungsbeispiel einer Einlesevorrichtung. Diese Einlesevorrichtung 31 hat einen Elektromagneten 32 und einen Halter 33 für den Elektromagneten. Der Elektromagnet 32 besteht aus einem Doppel-T-förmigen Kern 34 und einer Wicklung 35. Der Kern 34 hat einen Stegteil, auf dem die Wicklung isoliert angeordnet ist und einen breiten Basisflansch 36 und einem schmalen Flansch 37, die an der den Zugorganen 42 zugewandten Seiten schräge Flächen aufweisen, welche definierte Polbereiche 38 und 39 und somit die Basiskante 17a bilden.FIG. 3 shows a second exemplary embodiment of a reading device. This reading device 31 has an electromagnet 32 and a holder 33 for the electromagnet. The electromagnet 32 consists of a double-T-shaped core 34 and a winding 35. The core 34 has a web part on which the winding is arranged in an insulated manner and a wide base flange 36 and a narrow flange 37 which face the traction elements 42 Sides have inclined surfaces, which have defined pole areas 38 and 39 and thus the base edge 17a form.

Wie in Figur 3 angedeutet, wird ein Abschnitt des Zugorgans 42 bei erregtem Elektromagneten 32 angezogen, so dass sich dieser Abschnitt an den schrägen Flächen der Flansche 36,37 des Kerns 34 anliegt, wobei die Feldlinien 40 in Längsrichtung des Zugorgans 42 gerichtet sind. Dadurch wird der magnetische Kreis kurzgeschlossen, so dass die Stromaufnahme des Elektromagneten 32 in vorteilhafter Weise herabgesetzt wird.As indicated in FIG. 3, a section of the pulling element 42 is attracted when the electromagnet 32 is excited, so that this section lies against the inclined surfaces of the flanges 36, 37 of the core 34, the field lines 40 being directed in the longitudinal direction of the pulling element 42. As a result, the magnetic circuit is short-circuited, so that the current consumption of the electromagnet 32 is advantageously reduced.

Die in den Figuren 4 bis 7 gezeigte erfindungsgemässe Fachbildevorrichtung enthält zwei Hubmesser 41, die von einer nicht gezeigten Antriebsvorrichtung gegenläufig auf- und abbewegt werden, zwei Zugorgane 42, die mit den Hubmesser 41 in und ausser Eingriff bringbar sind, eine in Figuren 1 und 2 dargestellte Einlesevorrichtung 12 mit einem nicht näher dargestellten Schaltkreis 58, die im Bereich der Unterfachstellung der Zugorgane 42 angeordnet ist und zwei Führungsteile 43,44, zwischen denen die Einlesevorrichtung 12 so angeordnet ist, dass die Zugorgane 42 gegenüber den Polbereichen (23,24) der Einlesevorrichtung 12 eine definierte Lage einnehmen (Figur 1). In dieser Lage ist zwischen der Basiskante 17a der Polbereiche und dem Zugorgan 42 ein Luftspalt A vorhanden, dessen Breite mit Vorteil nahezu Null ist (Figur 6). Um die Führung der Zugorgane 4 zu verbessern, können rinnenförmige Vertiefungen in den Führungsteilen 43,44 vorgesehen werden.The shedding device according to the invention shown in FIGS. 4 to 7 contains two lifting knives 41, which are moved up and down in opposite directions by a drive device, not shown, two pulling elements 42, which can be brought into and out of engagement with the lifting knives 41, one in FIGS. 1 and 2 Read device 12 shown with a circuit 58, not shown, which is arranged in the lower compartment position of the pulling members 42 and two guide parts 43, 44, between which the reading device 12 is arranged such that the pulling members 42 with respect to the pole areas (23, 24) of the Reading device 12 assume a defined position (Figure 1). In this position there is an air gap A between the base edge 17a of the pole areas and the tension member 42, the width of which is advantageously almost zero (FIG. 6). In order to improve the guidance of the traction elements 4, trough-shaped depressions can be provided in the guide parts 43, 44.

Das Zugorgan 42 ist streifenförmig ausgebildet. An unteren Ende ist das Zugorgan 42 mit dem kinematischen Verbindungsorgan 1 verbunden. Das obere Ende ist als hakenförmiger Abschnitt 45 ausgebildet, der mit dem Hubmesser 41 in und ausser Eingriff bringbar ist. Das Zugorgan 42 ist in einen Kupplungsteil 46, der an den hakenförmigen Abschnitt 45 angrenzt und in einen daran anschliessenden Führungsteil 47 unterteilt. Im Führungsteil 47 ist ein Anschlagteil 48 angeordnet, der z.B. auf einem Anschlagbrett 49 aufliegt, wenn sich das Zugorgan 42 in der Unterfachstellung befindet (Figur 4). Der Führungsteil 47 ist in einer Oeffnung 50 im Anschlagbrett 49 geführt.The tension member 42 is strip-shaped. At the lower end, the tension member 42 is connected to the kinematic connection member 1. The upper end is designed as a hook-shaped section 45 which can be brought into and out of engagement with the lifting knife 41. The traction element 42 is divided into a coupling part 46 which adjoins the hook-shaped section 45 and is divided into a guide part 47 adjoining it. A stop part 48 is arranged in the guide part 47, which rests, for example, on a stop board 49 when the pulling element 42 is in the lower compartment position (FIG. 4). The leadership part 47 is guided in an opening 50 in the bulletin board 49.

Das Zugorgan 42 kann aus Metall bestehen, welches magnetisierbar ist. Ebenso ist möglich, ein aus Kunststoffmaterial bestehendes Zugorgan anzuwenden, wobei der Kupplungsabschnitt 46 aus magnetisierbarem Material bestehen kann oder ein solches Material enthalten muss.The tension member 42 can be made of metal which is magnetizable. It is also possible to use a traction element made of plastic material, wherein the coupling section 46 can consist of magnetizable material or must contain such a material.

Die Hubmesser 41 sind mit einer Längskante mit zwei parallel verlaufenden Abschnitten 51,52 versehen, in welche die hakenförmigen Abschnitte 45 einhaken.The lifting knives 41 are provided with a longitudinal edge with two parallel sections 51, 52, into which the hook-shaped sections 45 hook.

An dem Rollenzug 2 ist eine Zugfeder 53 angehängt, um die Zugorgane 42 in Richtung des zu bildenden Faches vorzuspannen.A tension spring 53 is attached to the roller train 2 in order to prestress the tension members 42 in the direction of the compartment to be formed.

Es ist aber auch möglich, jedem Zugorgan 42 eine Feder zuzuordnen.However, it is also possible to assign a spring to each tension element 42.

In Figur 5 ist das Zugorgan 42 einstückig ausgebildet. Es ist aber möglich das Zugorgan zweiteilig auszubilden, wobei der Kupplungsteil 46 und der Führungsteil 47 als separate Teile durch geeignete Mittel miteinander verbunden sind.In Figure 5, the tension member 42 is integrally formed. However, it is possible to design the pulling element in two parts, the coupling part 46 and the guide part 47 being connected to one another as separate parts by suitable means.

Die Fachbildevorrichtung ist mit einer Rückstelleinrichtung 55 versehen, um den Kupplungsteil 46 des Zugorgans 42 von der Einlesevorrichtung 12 abzuheben, wenn die Elektromagnete 13,14 (Fig.1) nicht erregt sind. Zu diesem Zweck kann die Rückstelleinrichtung aus einem Halter 56 und einer Blattfeder 57 bestehen und z.B. an der Einlesevorrichtung 12 montiert sein.The shed forming device is provided with a reset device 55 in order to lift the coupling part 46 of the pulling element 42 from the reading device 12 when the electromagnets 13, 14 (FIG. 1) are not energized. For this purpose the reset device can consist of a holder 56 and a leaf spring 57 and e.g. be mounted on the reading device 12.

Die Figuren 8 bis 11 zeigen ein weiteres Ausführungsbeispiel einer erfindungsgemässen Fachbildevorrichtung.FIGS. 8 to 11 show a further exemplary embodiment of a shedding device according to the invention.

Die Fachbildevorrichtung ist in platzsparender Bauweise ausgebildet und enthält zwei Hubmesser 101, zwei Zugorgane 102, Führungsteile 103 für die Hubmesser, eine in Figur 1 gezeigte Einlesevorrichtung 12 und zwei Führungen 104, zwischen denen die Einlesevorrichtung 12 so angeordnet ist, dass die Zugorgane 102 gegenüber den Polbereichen 23,24 (Fig.1) eine definierte Lage einnehmen.The shedding device is designed in a space-saving design and contains two lifting knives 101, two pulling elements 102, guide parts 103 for the lifting knives, a reading device 12 shown in FIG. 1 and two guides 104, between which the reading device 12 is arranged such that the pulling elements 102 are opposite to the Pole areas 23, 24 (Fig. 1) assume a defined position.

Wie Figur 8 + 9 zeigt, ist die Führung 104 so ausgestaltet, dass das Zugorgan 102 jeweils bei der unteren Basiskante 17a der Einlesevorrichtung 12 geführt wird, wodurch das Zugorgan 102 mit den Polbereichen 23, 24 mit geringstem Luftspalt in Kontakt steht. Als besonders vorteilhaft erweist es sich dabei, dass das Zugorgan 102 schräg bezüglich der Grundfläche der Einlesevorrichtung 12 verläuft. Dadurch wird eine definierte Rückstellkraft des Kupplungsteiles 110 erreicht.As shown in FIGS. 8 and 9, the guide 104 is designed such that the pulling element 102 is guided at the lower base edge 17a of the reading device 12, as a result of which the pulling element 102 is in contact with the pole areas 23, 24 with the smallest air gap. It proves to be particularly advantageous that the pulling element 102 extends obliquely with respect to the base area of the reading device 12. A defined restoring force of the coupling part 110 is thereby achieved.

Das Zugorgan 102 ist streifenförmig ausgebildet und besteht aus elastisch verformbarem Material. Das Zugorgan besteht aus einem schmalen Abschnitt 105, an dessen freies Ende das Verbindungsorgan 1 angehängt ist, und einem breiten Abschnitt 106, dessen freies Ende einen bezüglich der Streifenebene geneigten Abschnitt 107 aufweist. Unterhalb dieses Abschnittes 107 ist eine rechteckförmige Ausnehmung 108 ausgebildet. Durch die beiden Abschnitte 105 und 106 wird eine Schulter 109 am Zugorgan ausgebildet, die auf dem Anschlagbrett 49 aufliegt, wenn das Zugorgan 102 in der Unterfachstellung steht. Ferner ist das Zugorgan in den Kupplungsteil 110 und einen Führungsteil 111 unterteilt.The tension member 102 is strip-shaped and consists of an elastically deformable material. The traction element consists of a narrow section 105, on the free end of which the connecting element 1 is attached, and a wide section 106, the free end of which has a section 107 inclined with respect to the plane of the strip. A rectangular recess 108 is formed below this section 107. The two sections 105 and 106 form a shoulder 109 on the pulling element, which rests on the notice board 49 when the pulling element 102 is in the lower compartment position. Furthermore, the tension member is divided into the coupling part 110 and a guide part 111.

Das Hubmesser 101 hat an seiner nach unten gerichteten Schmalseite einen Ansatz 112 mit hakenförmigen Abschnitten 113, die von den Seitenflächen des Ansatzes abstehen und mit den Ausnehmungen 108 im Zugorgan in und ausser Eingriff bringbar sind.The lifting knife 101 has on its downward narrow side an attachment 112 with hook-shaped sections 113 which protrude from the side surfaces of the attachment and can be brought into and out of engagement with the recesses 108 in the pulling element.

Durch die vorspringenden Abschnitte 113 wird eine Auflauffläche 114 gebildet. An den Abschnitt 112 schliesst sich ein erweiterter Abschnitt 116 mit geneigten Flächen 117 an, der in den Kopfteil des Hubmessers 101 übergeht. Bei der Abwärtsbewegung des Hubmessers 101 wird der geneigte Abschnitt 107 des Zugorgans an die geneigte Fläche 117 angelegt und durch die fortdauernde Abwärtsbewegung des Hubmessers wird der Kupplungsteil 110 ausgelenkt und an die Polbereiche 23, 24 (Fig.1) der Einlesevorrichtung 12 angelegt.A protruding surface 114 is formed by the projecting sections 113. An enlarged section 116 with inclined surfaces 117 adjoins section 112, which merges into the head part of the lifting knife 101. During the downward movement of the lifting knife 101, the inclined section 107 of the pulling element is placed against the inclined surface 117, and due to the continuous downward movement of the lifting knife, the coupling part 110 is deflected and against the pole regions 23, 24 (FIG. 1) of the reading device 12.

Die Figuren 12 und 13 zeigen ein weiteres Ausführungsbeispiel einer erfindungsgemässen Fachbildevorrichtung.FIGS. 12 and 13 show a further exemplary embodiment of a shedding device according to the invention.

Die Fachbildevorrichtung enthält zwei Hubmesser 120, zwei Zugorgane 121 und eine in Figur 1 gezeigte Einlesevorrichtung 12, die so angeordnet ist, dass sie zwischen den Zugorganen 121 liegt, wenn letztere in der Unterfachstellung stehen. In dieser Unterfachstellung nehmen die Zugorgane bezüglich den Polbereichen 23, 24 (Figur 1) eine definierte Lage ein.The shed forming device contains two lifting knives 120, two pulling elements 121 and a reading device 12 shown in FIG. 1, which is arranged in such a way that it lies between the pulling elements 121 when the latter are in the lower shed position. In this sub-compartment position, the traction elements assume a defined position with respect to the pole regions 23, 24 (FIG. 1).

Das Zugorgan 121 enthält einen streifenförmigen Führungsteil 122 und einen streifenförmigen Kupplungsteil 123, der am Führungsteil 122 befestigt ist. Der Führungsteil 122 ist an einem Ende mit dem kinematischen Verbindungselement 1 verbunden. Im Bereich des anderen Endes ist eine rechteckige Ausnehmung 125 vorgesehen. Der Führungsteil 122 besteht mit Vorteil aus einem Material, das nicht magnetisierbar ist. Jedes Zugorgan 121 hat einen Anschlagteil 54, der nach aussen zum Hubmesser 120 abstehend am Führungsteil 122 befestigt ist und der auf dem Anschlagbrett 49 aufliegt, wenn das Zugorgan 121 in der Unterfachstellung steht, oder der dafür sorgt, dass das Hubmesser 120 das Zugorgan 121 zwangsläufig in die Unterfachstellung bewegt.The traction element 121 contains a strip-shaped guide part 122 and a strip-shaped coupling part 123 which is fastened to the guide part 122. The guide part 122 is connected at one end to the kinematic connecting element 1. A rectangular recess 125 is provided in the area of the other end. The guide part 122 advantageously consists of a material that cannot be magnetized. Each pulling element 121 has a stop part 54, which is fastened to the guide part 122, projecting outwards from the lifting knife 120, and which rests on the stop board 49 when the pulling element 121 is in the lower compartment position, or which ensures that the lifting knife 120 inevitably pulls the pulling element 121 moved to the sub-compartment position.

Der Kupplungsteil 123 hat an einem Ende einen hakenförmigen Abschnitt 126, der durch die Ausnehmung 125 ragen kann. Der Kupplungsteil 123 besteht aus elastisch verformbarem Material, das magnetisierbar ist und zum Magnetpol 23, 24 hin verschwenkbar ist. Bei diesem Zugorgan 121 erweist sich die zweiteilige Ausführungsform als besonders vorteilhaft, weil auf den Führungsteil 122 keine magnetische Anziehungskraft ausgeübt wird.The coupling part 123 has a hook-shaped section 126 at one end, which can protrude through the recess 125. The coupling part 123 consists of elastically deformable material that can be magnetized and can be pivoted toward the magnetic pole 23, 24. In this traction element 121, the two-part embodiment proves to be particularly advantageous because no magnetic attraction force is exerted on the guide part 122.

Oberhalb der Einlesevorrichtung 12 ist ein Führungsorgan 127 angeordnet, an welchem die Kupplungsteile 123 anliegen, wenn das Zugorgan 121 in der Oberflächenstellung steht. Im Anschlagbrett 46 eine Oeffnung 128 vorgesehen, in welchem der Führungsteil 122 bei der Auf- und Abbewegung geführt ist. Somit ergibt sich eine zweifache Führung für das Zugorgan 121. Die Führung kann verbessert werden, wenn im Führungsorgan 127 eine rinnenförmige Ausnehmung vorgesehen wird, die bei der Auf- und Abwärtsbewegung des Zugorgans den Kupplungsteil 123 aufnimmt, so dass der Führungsteil 122 an den Rändern am Führungsorgan 127 geführt wird.A guide element 127 is arranged above the reading device 12, against which the coupling parts 123 rest when the pulling element 121 is in the surface position stands. An opening 128 is provided in the bulletin board 46, in which the guide part 122 is guided during the up and down movement. This results in a double guidance for the pulling element 121. The guidance can be improved if a channel-shaped recess is provided in the guide element 127, which receives the coupling part 123 during the upward and downward movement of the pulling element, so that the guiding part 122 on the edges Management body 127 is performed.

Claims (1)

  1. Shedding device for a textile machine, specifically jacquard machine, with oppositely moveable lifting blades (41), with pulling elements (42) which are reciprocably moveable between a lower shed and upper shed, resp. position, which are interconnected in pairs by a kinematic connecting member (1) and are connected via a pulley block (2) connected to the connecting member (1) to a heddle (7) or a heald frame, and with an insertion device (12) which comprises at least one electromagnet (13,14) with two defined pole areas (23,24), whereby the insertion device (12) is located at the area of the lower shed position and between the pulling elements (42) in order to control the pulling elements (42) in accordance with a pattern program in such a manner that the pulling element (42) resting in its lower shed position on a detent (51) can be brought into and out of, resp., engagement with the lifting blade (41) in order to move the pulling element (42) into the upper shed position and into the lower shed position or to leave it, resp., whereby the pulling element (42) is formed web-like and includes a coupling part (46) in an operative connection to the electromagnet (13,14) in order to couple or uncouple the pulling element (42), characterized in that the insertion device (12) has a wedge shaped base form (17) and is arranged with its bases surface (17a) facing the slickenside (6), and that the two magnet pole areas (23,24) which are formed at the inclined surfaces (20, 21) of the wedge shaped base form (17), whereby the insertion device (12) is arranged in such a manner that the inclined surfaces (20,21) are located opposite the pulling elements (42) and a predetermined air gap (A) of maximal 1 mm is present between the base edge (17a) formed by the inclined surfaces (20,21) and the path of movement of the pulling elements (42), and that each pulling element (42) comprises a guiding part (47) for guiding the pulling element below the insertion device (12) in an opening (50) of an abutment board (49).
EP92905339A 1991-03-13 1992-03-02 Shedding device for a textile machine Expired - Lifetime EP0529025B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH731/91 1991-03-13
CH73191 1991-03-13
PCT/CH1992/000042 WO1992016679A1 (en) 1991-03-13 1992-03-02 Shedding device for a textile machine

Publications (2)

Publication Number Publication Date
EP0529025A1 EP0529025A1 (en) 1993-03-03
EP0529025B1 true EP0529025B1 (en) 1995-09-06

Family

ID=4193879

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Application Number Title Priority Date Filing Date
EP92905339A Expired - Lifetime EP0529025B1 (en) 1991-03-13 1992-03-02 Shedding device for a textile machine

Country Status (11)

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US (1) US5309952A (en)
EP (1) EP0529025B1 (en)
JP (1) JP2670186B2 (en)
CN (1) CN1030932C (en)
BR (1) BR9204791A (en)
CA (1) CA2082655C (en)
DE (2) DE4116164A1 (en)
ES (1) ES2077401T3 (en)
HK (1) HK1004281A1 (en)
TW (1) TW202487B (en)
WO (1) WO1992016679A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101250785B (en) * 2008-02-02 2011-05-11 韩通 One-way boosting buffer mechanism for electronic jacquard opening mechanism

Families Citing this family (10)

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Publication number Priority date Publication date Assignee Title
DE4116163A1 (en) * 1991-03-13 1992-09-17 Textilma Ag TECHNICAL DEVICE FOR A TEXTILE MACHINE
BE1009047A4 (en) * 1995-01-17 1996-11-05 Wiele Michel Van De Nv TRIDENT OPEN-GAAP jacquard.
BE1009730A3 (en) * 1995-10-27 1997-07-01 Wiele Michel Van De Nv GAAP GAAP TRAINING DEVICE FOR TRAINING RESOURCES SELECTION USING piezoelectric elements.
FR2752246B1 (en) * 1996-08-06 1998-10-09 Staubli Lyon METHOD AND DEVICE FOR SELECTING THE MOVABLE HOOKS OF A CROWD TRAINING MECHANISM AND JACQUARD TYPE Loom
DE29821191U1 (en) * 1998-11-26 1999-02-11 Textilma Ag, Hergiswil Device for selecting a thread in a textile machine and textile machine with device
DE19855709B4 (en) * 1998-12-03 2008-01-24 Helmut Hechinger Gmbh & Co. Guide bars for a jacquard weaving device
BE1016217A5 (en) 2004-09-28 2006-05-02 Wiele Michel Van De Nv GAAPING DEVICE AND WEAVING MACHINE FITTED WITH SUCH GAAPING DEVICE.
CN102002788B (en) * 2010-12-14 2013-12-25 上海超诚电子科技有限公司 Shedding device, shedding device assembly and jacquard
BE1019710A3 (en) 2010-12-21 2012-10-02 Wiele Michel Van De Nv GAAP FORMAT FOR A WEAVING MACHINE.
FR3118070B1 (en) * 2020-12-21 2022-12-23 Staubli Lyon SHEDDING MECHANISM AND JACQUARD TYPE Loom

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GB8306813D0 (en) * 1983-03-11 1983-04-20 Bonas Machine Co Heald control apparatus
GB8432476D0 (en) * 1984-12-21 1985-02-06 Bonas Machine Co Heald rod retention device
DE3713832C1 (en) * 1987-04-24 1988-06-23 Grosse Webereimaschinen Gmbh Circuit board control device for open compartment jacquard machine
DE3817417C2 (en) * 1988-05-21 1995-06-01 Schleicher Oskar Fa Shed forming device for textile machines, in particular weaving machines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101250785B (en) * 2008-02-02 2011-05-11 韩通 One-way boosting buffer mechanism for electronic jacquard opening mechanism

Also Published As

Publication number Publication date
JP2670186B2 (en) 1997-10-29
ES2077401T3 (en) 1995-11-16
CA2082655C (en) 1999-02-09
CN1030932C (en) 1996-02-07
BR9204791A (en) 1993-07-13
DE4116164A1 (en) 1992-09-17
US5309952A (en) 1994-05-10
HK1004281A1 (en) 1998-11-20
WO1992016679A1 (en) 1992-10-01
CA2082655A1 (en) 1992-09-14
CN1064903A (en) 1992-09-30
EP0529025A1 (en) 1993-03-03
DE59203551D1 (en) 1995-10-12
JPH05507326A (en) 1993-10-21
TW202487B (en) 1993-03-21

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