EP0870856A1 - Drive for heald frame and loom with a drive for heald frame - Google Patents

Drive for heald frame and loom with a drive for heald frame Download PDF

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Publication number
EP0870856A1
EP0870856A1 EP97810205A EP97810205A EP0870856A1 EP 0870856 A1 EP0870856 A1 EP 0870856A1 EP 97810205 A EP97810205 A EP 97810205A EP 97810205 A EP97810205 A EP 97810205A EP 0870856 A1 EP0870856 A1 EP 0870856A1
Authority
EP
European Patent Office
Prior art keywords
heald frame
spring
drive
link
loom
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP97810205A
Other languages
German (de)
French (fr)
Inventor
Alfred Dr. Stirnemann
Erich Kläui
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Itema Switzerland Ltd
Maschinenfabrik Rueti AG
Original Assignee
Sultex 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 Sultex AG, Maschinenfabrik Rueti AG filed Critical Sultex AG
Priority to EP97810205A priority Critical patent/EP0870856A1/en
Publication of EP0870856A1 publication Critical patent/EP0870856A1/en
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C1/00—Dobbies
    • D03C1/14—Features common to dobbies of different types
    • D03C1/144—Features common to dobbies of different types linking to the heald frame

Definitions

  • the invention relates to a heald frame drive according to the Preamble of claim 1 and a weaving machine with such a heald frame drive.
  • CH-PS 558 435 a heald frame drive is described which contains a linkage and a spring element which in Linkage is installed. With this spring element should Acceleration peaks are damped.
  • the invention has for its object a To create heald frame drive that essentially is vibration-free and cushions the load peaks.
  • FIG. 1 shows a heald frame 1, a linkage 2 and a dobby 3, the execution of which are known and a device 4 of the type in question here, which on the one hand with the linkage 2 and on the other hand with the dobby 3 is connected.
  • the device 4 consists essentially of a first and second coupling element 11, 12, the relative are slidably arranged with each other and with the Linkage 2 or connected to the dobby 3 can and a compression spring 13, which is under tension between the first and second coupling elements 11, 12 is arranged.
  • first coupling part 11 as a cylindrical hollow body 14 formed with a tubular extension 15 which on protrudes from one end.
  • the approach 15 is by one Part 16 completed, with not shown Means is attached to the approach 15.
  • the reference number 17 denotes a through hole which extends through the Approach 15 and part 16 extends.
  • the hollow body is on the other end by a flange 18th completed, by means not shown to the Hollow bodies is attached.
  • the second coupling part 12 is arranged in the first coupling part 11 and consists of two parts 21 and 22.
  • One part 21 shows that Through hole 17 and a portion 23 with less Outside diameter so that a first shoulder 24 is available.
  • the other part 22 is sleeve-shaped formed and connected to the section 23.
  • sleeve-shaped part 22 has the same outside diameter like part 21 so that a second shoulder 25 is trained.
  • section 23 On the section 23 are two sleeves 27 arranged with a flange 28 so that the flanges rest on the first or second shoulder 24, 25.
  • the Compression spring 13 is under tension between the Flanges 28 arranged on the section 23.
  • the preferred embodiment of the device according to FIG. 3 contains a first coupling element 31 and 32 and four compression springs 33, which between the Coupling elements are arranged.
  • the first Coupling element 31 is cuboid and with the through hole 17 and two threaded blind holes 35 provided on a narrow side.
  • the second Coupling element 32 is T-shaped and with the Through hole 17 and two through holes 36 and a rectangular recess 37 on one end face Mistake.
  • the device 4 also contains four bolts 41 with a threaded portion 42 at one end and one Flat head 43 at the other end and two cuboid Support parts 45, which four holes for receiving have the bolt 41 and between which the Compression springs 33 pretensioned on the bolt 41 are arranged. As the figure shows, they are internal bolt with the first coupling part 31 and the outer bolts 41 with the second Coupling element in operative connection. To secure the The preload settings are counter screw connections 46 intended.
  • the device transmits the movement of the dobby 3 on the linkage 2 and is therefore subject to an alternating load on train or Pressure. Regardless of whether the device is on train or Is loaded, the springs 33rd pressed together. Since the springs 33 under tension are arranged, the springs behave like rigid Elements up to the force to be transmitted the preload exceeds.
  • a spring 13 in biased condition arranged in the drive train.
  • the preloaded spring behaves like a rigid one Element up to the force to be transmitted the preload exceeds and thus peak loads are cushioned.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Springs (AREA)

Abstract

The shaft drive is especially used on a loom for weaving cloth. It has a coil spring (13) accommodated inside a cylindrical housing in a reciprocating link in the drive train. The spring is pretensioned in compression, to take up loading peaks, and pushes on outwards-extending flanges of sleeves (27) sliding on a small diameter portion (23) of the reciprocating link. The sleeves engage shoulders on the transmission link and the spring pushes the link towards a central position. The larger-diameter portions of the link slide inside smaller-diameter portions (18) at the ends of the housing

Description

Die Erfindung betrifft einen Webschafttrieb gemäss dem Oberbegriff des Anspruches 1 und eine Webmaschine mit einem derartigen Webschafttrieb.The invention relates to a heald frame drive according to the Preamble of claim 1 and a weaving machine with such a heald frame drive.

In der CH-PS 558 435 ist ein Webschafttrieb beschrieben, der ein Gestänge und ein Federelement enthält, das im Gestänge eingebaut ist. Mit diesem Federelement sollen Beschleunigungsspitzen gedämpft werden.In CH-PS 558 435 a heald frame drive is described which contains a linkage and a spring element which in Linkage is installed. With this spring element should Acceleration peaks are damped.

Während des Betriebes wird das Gestänge hin und her bewegt, so dass das Federelement fortwährend gespannt und entspannt und so zum Schwingen angregt wird. Infolge der geringen Eigendämpfung klingen diese Schwingungen nur langsam ab.The linkage moves back and forth during operation moves so that the spring element is continuously tensioned and relaxed and thus stimulated to vibrate. As a result of These vibrations only sound with low internal damping slowly.

Der Erfindung liegt die Aufgabe zugrunde, einen Webschafttrieb zu schaffen, der im wesentlichen schwingungsfrei ist und die Belastungsspitzen abfedert.The invention has for its object a To create heald frame drive that essentially is vibration-free and cushions the load peaks.

Nachfolgend wird die Erfindung anhand der beiliegenden Zeichnungen erläutert. The invention is described below with reference to the enclosed Drawings explained.

Es zeigen:

Figur 1
Einen Schafttrieb mit einem erfindungsgemässen Federelement in schematischer Darstellung;
Figur 2
eine erste Ausführungsform eines erfindungsgemässen Federelementes im Schnitt und
Figur 3
eine Ansicht einer bevorzugten Ausführungsform eines erfindungsgemässen Federelementes.
Show it:
Figure 1
A shaft drive with a spring element according to the invention in a schematic representation;
Figure 2
a first embodiment of a spring element according to the invention in section and
Figure 3
a view of a preferred embodiment of a spring element according to the invention.

Die Figur 1 zeigt einen Webschaft 1, ein Gestänge 2 und eine Schaftmaschine 3, deren Ausführung bekannt sind sowie eine Vorrichtung 4 der hier in Rede stehender Art, welche einerseits mit dem Gestänge 2 und andererseits mit der Schaftmaschine 3 verbunden ist.FIG. 1 shows a heald frame 1, a linkage 2 and a dobby 3, the execution of which are known and a device 4 of the type in question here, which on the one hand with the linkage 2 and on the other hand with the dobby 3 is connected.

Die Vorrichtung 4 besteht im wesentlichen aus einem ersten und zweiten Kopplungselement 11, 12, die relativ zueinander verschiebbar angeordnet sind und mit dem Gestänge 2 bzw. mit der Schaftmaschine 3 verbunden werden können und eine Druckfeder 13, die unter Vorspannung zwischen dem ersten und zweiten Kopplungselement 11, 12 angeordnet ist.The device 4 consists essentially of a first and second coupling element 11, 12, the relative are slidably arranged with each other and with the Linkage 2 or connected to the dobby 3 can and a compression spring 13, which is under tension between the first and second coupling elements 11, 12 is arranged.

Bei der in Figur 2 gezeigten Ausführungsform ist der erste Kopplungsteil 11 als zylindrischer Hohlkörper 14 mit einem rohrförmigen Ansatz 15 ausgebildet, der an einer Stirnseite absteht. Der Ansatz 15 ist durch einen Teil 16 abgeschlossen, der mit nicht dargestellten Mitteln an dem Ansatz 15 befestigt ist. Die Bezugszahl 17 bezeichnet ein Durchgangsloch, welches sich durch den Ansatz 15 und den Teil 16 erstreckt. Der Hohlkörper ist an der anderen Stirnseite durch einen Flansch 18 abgeschlossen, der durch nicht dargestellte Mittel an den Hohlkörpern befestigt ist. Der zweite Kopplungsteil 12 ist im ersten Kopplungsteil 11 angeordnet und besteht aus zwei Teilen 21 und 22. Der eine Teil 21 weist das Durchgangsloch 17 und einen Abschnitt 23 mit geringerem Aussendurchmesser auf, so dass eine erste Schulter 24 vorhanden ist. Der andere Teil 22 ist hülsenförmig ausgebildet und mit dem Abschnitt 23 verbunden. Der hülsenförmige Teil 22 hat den gleichen Aussendurchmesser wie der Teil 21, so dass eine zweite Schulter 25 ausgebildet wird. Auf dem Abschnitt 23 sind zwei Hülsen 27 mit einem Flansch 28 so angeordnet, dass die Flansche an der ersten bzw. zweiten Schulter 24, 25 anliegen. Die Druckfeder 13 ist unter Vorspannung zwischen den Flanschen 28 auf dem Abschnitt 23 angeordnet.In the embodiment shown in FIG first coupling part 11 as a cylindrical hollow body 14 formed with a tubular extension 15 which on protrudes from one end. The approach 15 is by one Part 16 completed, with not shown Means is attached to the approach 15. The reference number 17 denotes a through hole which extends through the Approach 15 and part 16 extends. The hollow body is on the other end by a flange 18th completed, by means not shown to the Hollow bodies is attached. The second coupling part 12 is arranged in the first coupling part 11 and consists of two parts 21 and 22. One part 21 shows that Through hole 17 and a portion 23 with less Outside diameter so that a first shoulder 24 is available. The other part 22 is sleeve-shaped formed and connected to the section 23. Of the sleeve-shaped part 22 has the same outside diameter like part 21 so that a second shoulder 25 is trained. On the section 23 are two sleeves 27 arranged with a flange 28 so that the flanges rest on the first or second shoulder 24, 25. The Compression spring 13 is under tension between the Flanges 28 arranged on the section 23.

Die bevorzugte Ausführungsform der Vorrichtung nach Figur 3 enthält ein erstes Kopplungselement 31 und 32 sowie vier Druckfedern 33, die zwischen den Kopplungselementen angeordnet sind. Das erste Kopplungselement 31 ist quaderförmig ausgebildet und mit dem Durchgangsloch 17 sowie zwei Gewindeblindbohrungen 35 an einer Schmalseite versehen. Das zweite Kopplungselement 32 ist T-förmig ausgebildet und mit dem Durchgangsloch 17 sowie zwei Durchgangslöcher 36 und einer rechteckförmigen Ausnehmung 37 an einer Stirnseite versehen. Die Vorrichtung 4 enthält ferner vier Bolzen 41 mit einem Gewindeabschnitt 42 an einem Ende und einem Flachkopf 43 am anderen Ende sowie zwei quaderförmige Auflageteile 45, welche vier Durchbohrungen zur Aufnahme der Bolzen 41 aufweisen und zwischen welchen die Druckfedern 33 unter Vorspannung auf den Bolzen 41 angeordnet sind. Wie die Figur zeigt, stehen die innenliegenden Bolzen mit dem ersten Kopplungsteil 31 und die aussenliegenden Bolzen 41 mit dem zweiten Kopplungselement in Wirkverbindung. Zur Sicherung der Einstellung der Vorspannung sind Konterverschraubungen 46 vorgesehen.The preferred embodiment of the device according to FIG. 3 contains a first coupling element 31 and 32 and four compression springs 33, which between the Coupling elements are arranged. The first Coupling element 31 is cuboid and with the through hole 17 and two threaded blind holes 35 provided on a narrow side. The second Coupling element 32 is T-shaped and with the Through hole 17 and two through holes 36 and a rectangular recess 37 on one end face Mistake. The device 4 also contains four bolts 41 with a threaded portion 42 at one end and one Flat head 43 at the other end and two cuboid Support parts 45, which four holes for receiving have the bolt 41 and between which the Compression springs 33 pretensioned on the bolt 41 are arranged. As the figure shows, they are internal bolt with the first coupling part 31 and the outer bolts 41 with the second Coupling element in operative connection. To secure the The preload settings are counter screw connections 46 intended.

Wie aus Figur 1 ersichtlich, überträgt die Vorrichtung die Bewegung der Schaftmaschine 3 auf das Gestänge 2 und unterliegt somit einer Wechselbelastung auf Zug oder Druck. Unabhängig davon, ob die Vorrichtung auf Zug oder Druck belastet wird, werden die Federn 33 zusammengedrückt. Da die Federn 33 unter Vorspannung angeordnet sind, verhalten sich die Federn wie starre Elemente bis die zu übertragende Kraft die Vorspannung übersteigt.As can be seen from Figure 1, the device transmits the movement of the dobby 3 on the linkage 2 and is therefore subject to an alternating load on train or Pressure. Regardless of whether the device is on train or Is loaded, the springs 33rd pressed together. Since the springs 33 under tension are arranged, the springs behave like rigid Elements up to the force to be transmitted the preload exceeds.

Bei dem Webschafttrieb wird eine Feder 13 im vorgespannten Zustand in den Antriebsstrang angeordnet. Die vorgespannte Feder verhält sich wie ein starres Element bis die zu übertragende Kraft die Vorspannung übersteigt und somit Belastungsspitzen abgefedert werden.In the heald frame drive a spring 13 in biased condition arranged in the drive train. The preloaded spring behaves like a rigid one Element up to the force to be transmitted the preload exceeds and thus peak loads are cushioned.

Claims (4)

Webschafttrieb, mit welchem ein Webschaft über ein Gestänge unter Zwischenschaltung mindestens einer Feder eine Hin- und Herbewegung erteilt wird, dadurch gekennzeichnet, dass die Feder (13; 33) in vorgespanntem Zustand in den Antriebsstrang angeordnet ist, um Belastungsspitzen abzufedern.Heald frame drive, with which a heald frame over a Linkage with the interposition of at least one A spring reciprocation is given thereby characterized in that the spring (13; 33) in preloaded condition in the drive train is arranged to absorb peak loads. Webschafttrieb nach Anspruch 1, dadurch gekennzeichnet, dass die Feder eine Druckfeder (13; 33) ist.Heald frame drive according to claim 1, characterized characterized that the spring is a compression spring (13; 33). Webschafttrieb nach einem der Ansprüche 1 oder 2, gekennzeichnet durch eine Mehrzahl von Federn, die zu einer Einheit zusammengefasst sind.Heald frame drive according to one of claims 1 or 2, characterized by a plurality of springs belonging to are combined in one unit. Webmaschine mit Webschafttrieb nach einem der Ansprüche 1 bis 3.Loom with heald frame drive according to one of the Claims 1 to 3.
EP97810205A 1997-04-09 1997-04-09 Drive for heald frame and loom with a drive for heald frame Withdrawn EP0870856A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP97810205A EP0870856A1 (en) 1997-04-09 1997-04-09 Drive for heald frame and loom with a drive for heald frame

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP97810205A EP0870856A1 (en) 1997-04-09 1997-04-09 Drive for heald frame and loom with a drive for heald frame

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1061284A2 (en) * 1999-05-31 2000-12-20 V ts, Liberec a.s. A method of reducing vibrations and forces in shed and other mechanisms of weaving looms
EP1514960A2 (en) 2003-09-10 2005-03-16 Groz-Beckert KG Low vibration shedding system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR652358A (en) * 1928-04-07 1929-03-07 Chain comb hanger of a loom
CH558435A (en) * 1972-11-17 1975-01-31 Grob & Co Ag Loom shaft drive mechanism - has a shock absorber located in the drive shaft driven by eccentrics
EP0627512A1 (en) * 1993-06-03 1994-12-07 S.A. DES ETABLISSEMENTS STAUBLI (France) Damping device for looms

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR652358A (en) * 1928-04-07 1929-03-07 Chain comb hanger of a loom
CH558435A (en) * 1972-11-17 1975-01-31 Grob & Co Ag Loom shaft drive mechanism - has a shock absorber located in the drive shaft driven by eccentrics
EP0627512A1 (en) * 1993-06-03 1994-12-07 S.A. DES ETABLISSEMENTS STAUBLI (France) Damping device for looms

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1061284A2 (en) * 1999-05-31 2000-12-20 V ts, Liberec a.s. A method of reducing vibrations and forces in shed and other mechanisms of weaving looms
EP1061284A3 (en) * 1999-05-31 2003-02-19 V ts, Liberec a.s. A method of reducing vibrations and forces in shed and other mechanisms of weaving looms
EP1514960A2 (en) 2003-09-10 2005-03-16 Groz-Beckert KG Low vibration shedding system
DE10341629A1 (en) * 2003-09-10 2005-05-25 Groz-Beckert Kg Low vibration tray system
US7032624B2 (en) 2003-09-10 2006-04-25 Groz-Beckert Kg Low-vibration shedding system
DE10341629B4 (en) * 2003-09-10 2007-04-12 Groz-Beckert Kg Low vibration tray system

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