EP0874931B1 - Procede de fabrication d'une lamette pour lames cadres a partir d'un profile metallique creux - Google Patents

Procede de fabrication d'une lamette pour lames cadres a partir d'un profile metallique creux Download PDF

Info

Publication number
EP0874931B1
EP0874931B1 EP97914065A EP97914065A EP0874931B1 EP 0874931 B1 EP0874931 B1 EP 0874931B1 EP 97914065 A EP97914065 A EP 97914065A EP 97914065 A EP97914065 A EP 97914065A EP 0874931 B1 EP0874931 B1 EP 0874931B1
Authority
EP
European Patent Office
Prior art keywords
heald shaft
producing
profile
height
metal hollow
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.)
Expired - Lifetime
Application number
EP97914065A
Other languages
German (de)
English (en)
Other versions
EP0874931A1 (fr
Inventor
Manfred Spitzer
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.)
Schmeing GmbH and Co KG
Schmeing GmbH and Co Firma
Original Assignee
Schmeing GmbH and Co KG
Schmeing GmbH and Co Firma
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
Priority claimed from DE19625076A external-priority patent/DE19625076C2/de
Application filed by Schmeing GmbH and Co KG, Schmeing GmbH and Co Firma filed Critical Schmeing GmbH and Co KG
Publication of EP0874931A1 publication Critical patent/EP0874931A1/fr
Application granted granted Critical
Publication of EP0874931B1 publication Critical patent/EP0874931B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C9/00—Healds; Heald frames
    • D03C9/06—Heald frames
    • D03C9/0608—Construction of frame parts
    • D03C9/0616—Horizontal upper or lower rods
    • D03C9/0625—Composition or used material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49995—Shaping one-piece blank by removing material

Definitions

  • the invention relates to a method for producing a Shaft rod for heald frames according to the preamble of Main claim.
  • Light and rigid heald frames are for high-performance looms with up to 2,000 weft entries / min. required. Only with light heald frame strand systems can Accelerations with economically justifiable energy consumption achieve the highest shot entry benefits possible do. For a trouble-free web process are possible rigid shaft rods required.
  • heald frames are proposed, their top and bottom bars from a combination of steel profiles, steel foils and lightweight frame structures consist. Heald frames from these profiles are somewhat lighter than comparable heald frames made of aluminum, but the Bending stiffness a bit lower and the price about twice high.
  • US Pat. No. 3,754,577 proposes planking in parts of extruded profiles to be provided with rails or foils made of steel or carbon fibers, which should increase the bending stiffness.
  • Austrian patent specification 25 82 24 proposes a single hollow profile made of steel or aluminum a relatively low height as a basic shaft rod.
  • stem bar z. B. screwed, riveted or welded bars that run from the profile ends to the Increasing the height in the middle becomes as minimal as possible Weight gain is aimed at a higher bending stiffness and reached.
  • the ridge height in the middle can correspond to the heald frame length or can be carried out variably according to the load.
  • this ideal heald frame construction also has itself not proven in practice for reasons of cost, because obviously the manufacturing process is too expensive and the adjustment to the large number of possible applications creates difficulties.
  • the object of the present invention is to provide a heald frame manufacture that does not have a center support even with large machine widths required, with the heald frame weight still in the range from the weaving machines and dobby manufacturers There are limits and ultimately an economic one Manufacturing processes are proposed that are recyclable Materials can be carried out.
  • a light metal extrusion profile proposed as a shaft rod that in its height corresponds to the maximum required profile height of the shaft rod. That is, the basic profile must be as high as it is for one still acceptable deflection of the shaft rod in the middle is required.
  • the determined profile height is thus for a middle column Heald frame considerably higher than at present Usually used profiles for shaft rods with center support. It is also provided that this is relatively high Shank rod tapering from the center to both sides is processed so as to save weight without doing so the dynamic performance of the shaft rod is impaired becomes.
  • shaft profiles are used for the purpose of tapering Weight reduction partly with open profile chambers, if necessary, these open chambers at the top Shaft rod closed with lightweight materials, so that it is ensured that z. B. in cotton weavers in the open backs of the profile do not form an accumulation of fiber flakes that fall into the fabrics at any time and lead to malfunctions or tissue defects.
  • the additional preferably machining for The profile weight can be reduced in the course of the other machining operations to a programmable machining center can be carried out inexpensively in one setup.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Body Structure For Vehicles (AREA)

Claims (3)

  1. Procédé de fabrication d'une lamette pour lames cadres à partir d'un profilé métallique creux dont la hauteur diminue vers les deux extrémités latérales, caractérisé en ce qu'un profilé extrudé en métal léger est sélectionné de telle sorte que la hauteur du profilé soit adaptée à la hauteur de profilé maximale d'une lamette sans appui médian puis usiné de façon à le rabattre vers ses deux extrémités latérales.
  2. Procédé selon la revendication 1, caractérisé en ce que les chambres ouvertes créées par l'usinage dans le profilé de la lamette supérieure sont obturées après l'usinage.
  3. Procédé selon la revendication 2, caractérisé en ce que l'on utilise pour l'obturation des matériaux légers.
EP97914065A 1996-01-13 1997-01-10 Procede de fabrication d'une lamette pour lames cadres a partir d'un profile metallique creux Expired - Lifetime EP0874931B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE19601116 1996-01-13
DE19601116 1996-01-13
DE19625076A DE19625076C2 (de) 1996-01-13 1996-06-22 Verfahren zur Herstellung eines Schaftstabes für Webschäfte aus einem Metallhohlprofil
DE19625076 1996-06-22
PCT/DE1997/000078 WO1997025465A1 (fr) 1996-01-13 1997-01-10 Procede de fabrication d'une lamette pour lames cadres a partir d'un profile metallique creux

Publications (2)

Publication Number Publication Date
EP0874931A1 EP0874931A1 (fr) 1998-11-04
EP0874931B1 true EP0874931B1 (fr) 1999-07-28

Family

ID=26022049

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97914065A Expired - Lifetime EP0874931B1 (fr) 1996-01-13 1997-01-10 Procede de fabrication d'une lamette pour lames cadres a partir d'un profile metallique creux

Country Status (5)

Country Link
US (1) US6076250A (fr)
EP (1) EP0874931B1 (fr)
JP (1) JP2000503074A (fr)
CN (1) CN1045641C (fr)
WO (1) WO1997025465A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10325908B4 (de) * 2003-06-05 2005-07-21 Groz-Beckert Kg Schaftstab, Webschaft und Verfahren zur Herstellung eines Schaftstabs
DE10326123B4 (de) * 2003-06-06 2007-01-04 Groz-Beckert Kg Schaftstab, Herstellungsverfahren für diesen und Webschaft
DE102004055381B3 (de) * 2004-11-17 2006-04-06 Groz-Beckert Kg Schafstab für Webschäfte
DE102004059319A1 (de) * 2004-12-02 2006-06-08 Picanol N.V. Webschaft

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9603A (en) * 1853-03-01 Improvement in looms
US1091751A (en) * 1913-03-12 1914-03-31 Pittsburgh Steel Products Co Method of forming axle-housings.
US3088496A (en) * 1960-11-08 1963-05-07 Cambridge Wire Cloth Loom harness
AT258224B (de) * 1965-05-19 1967-11-10 Grob & Co Ag Schaftstab für Webschäfte
FR1498551A (fr) * 1966-08-23 1967-10-20 Sulzer Ag Lame pour métier à tisser
CH525352A (de) * 1968-09-13 1972-07-15 Contraves Ag Stab mit hoher Biegesteifigkeit und Verwendung desselben
FR2077485B1 (fr) * 1970-01-22 1973-05-25 Creuzet Robert
CS157896B1 (fr) * 1971-09-10 1974-10-15
US3779288A (en) * 1972-06-14 1973-12-18 Rockwell International Corp Weft carrier guide
US4091844A (en) * 1977-02-25 1978-05-30 Pioneer Heddle And Reed Company Incorporated Loom harness
US4417462A (en) * 1980-08-28 1983-11-29 Rockwell International Corporation Axle spindle and method for making the same
DE3609964A1 (de) * 1986-03-25 1987-10-01 Egelhaaf C C Fa Webeschaft mit schaftstaeben aus einem aluminiumprofil
DE3912733C1 (fr) * 1989-04-19 1990-07-26 Kloecker-Entwicklungs-Gmbh, 4280 Borken, De
JPH0753556Y2 (ja) * 1990-11-26 1995-12-13 池田物産株式会社 バックフレーム
EP0561840B1 (fr) * 1990-12-20 1994-08-24 Audi Ag Colonne centrale d'une carrosserie de vehicule de tourisme
US6029353A (en) * 1997-06-05 2000-02-29 Anodizing, Inc. Method and products produced from splitting multi-void hollow tubing

Also Published As

Publication number Publication date
WO1997025465A1 (fr) 1997-07-17
EP0874931A1 (fr) 1998-11-04
CN1185817A (zh) 1998-06-24
US6076250A (en) 2000-06-20
JP2000503074A (ja) 2000-03-14
CN1045641C (zh) 1999-10-13

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