EP0874931B1 - Verfahren zur herstellung eines schaftstabes für webschäfte aus einem metallhohlprofil - Google Patents
Verfahren zur herstellung eines schaftstabes für webschäfte aus einem metallhohlprofil Download PDFInfo
- 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
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)
Description
Claims (3)
- Verfahren zur Herstellung eines Schaftstabes für Webschäfte aus einem Metallhohlprofil, dessen Höhe zu seinen beiden seitlichen Enden hin abnimmt, dadurch gekennzeichnet, daß ein Leichtmetallstrangpreßprofil hinsichtlich seiner Profilhöhe der maximalen Profilhöhe eines Schaftstabes ohne Mittelstütze angepaßt ausgewählt wird und anschließend zu seinen beiden seitlichen Enden hin sich verjüngend bearbeitet wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet , daß die durch die Bearbeitung bedingten offenen Profilkammern des oberen Schaftstabes nach dem Bearbeitungsvorgang verschlossen werden.
- Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß als Verschlußmittel Leichtbaustoffe eingesetzt werden.
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 (de) | 1996-01-13 | 1997-01-10 | Verfahren zur herstellung eines schaftstabes für webschäfte aus einem metallhohlprofil |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0874931A1 EP0874931A1 (de) | 1998-11-04 |
EP0874931B1 true EP0874931B1 (de) | 1999-07-28 |
Family
ID=26022049
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97914065A Expired - Lifetime EP0874931B1 (de) | 1996-01-13 | 1997-01-10 | Verfahren zur herstellung eines schaftstabes für webschäfte aus einem metallhohlprofil |
Country Status (5)
Country | Link |
---|---|
US (1) | US6076250A (de) |
EP (1) | EP0874931B1 (de) |
JP (1) | JP2000503074A (de) |
CN (1) | CN1045641C (de) |
WO (1) | WO1997025465A1 (de) |
Families Citing this family (4)
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)
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 (de) * | 1970-01-22 | 1973-05-25 | Creuzet Robert | |
CS157896B1 (de) * | 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 (de) * | 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 (de) * | 1990-12-20 | 1994-08-24 | Audi Ag | Mittelsäule an einer karosserie eines personenkraftwagens |
US6029353A (en) * | 1997-06-05 | 2000-02-29 | Anodizing, Inc. | Method and products produced from splitting multi-void hollow tubing |
-
1997
- 1997-01-10 EP EP97914065A patent/EP0874931B1/de not_active Expired - Lifetime
- 1997-01-10 WO PCT/DE1997/000078 patent/WO1997025465A1/de active IP Right Grant
- 1997-01-10 CN CN97190263A patent/CN1045641C/zh not_active Expired - Fee Related
- 1997-01-10 JP JP9524760A patent/JP2000503074A/ja active Pending
- 1997-01-10 US US09/011,936 patent/US6076250A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
WO1997025465A1 (de) | 1997-07-17 |
JP2000503074A (ja) | 2000-03-14 |
US6076250A (en) | 2000-06-20 |
CN1045641C (zh) | 1999-10-13 |
EP0874931A1 (de) | 1998-11-04 |
CN1185817A (zh) | 1998-06-24 |
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