EP0695821B1 - Luftwebmaschine mit Kantenniederhalter - Google Patents
Luftwebmaschine mit Kantenniederhalter Download PDFInfo
- Publication number
- EP0695821B1 EP0695821B1 EP95110331A EP95110331A EP0695821B1 EP 0695821 B1 EP0695821 B1 EP 0695821B1 EP 95110331 A EP95110331 A EP 95110331A EP 95110331 A EP95110331 A EP 95110331A EP 0695821 B1 EP0695821 B1 EP 0695821B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- weft
- air
- holding
- jet loom
- hold
- 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
Images
Classifications
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D49/00—Details or constructional features not specially adapted for looms of a particular type
- D03D49/60—Construction or operation of slay
- D03D49/62—Reeds mounted on slay
-
- 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
- D03D47/27—Drive or guide mechanisms for weft inserting
- D03D47/277—Guide mechanisms
- D03D47/278—Guide mechanisms for pneumatic looms
-
- 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
- D03D47/28—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed
- D03D47/30—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed by gas jet
-
- 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
- D03D47/40—Forming selvedges
- D03D47/48—Forming selvedges by inserting cut end of weft in next shed, e.g. by tucking, by blowing
Definitions
- the invention relates to an air-jet weaving machine with edge hold-down device according to the preamble of claim 1.
- the object of the invention is therefore to provide an air-jet weaving machine type mentioned in such a way that the inserted Weft ends reliably held in the inserted position and thus a defined insert edge without protruding Thread ends or fraying is reached.
- weft insertion channel in the reed its entry and exit end is expanded and into this extension one hold-down device intervenes.
- This hold-down ensures that the edge area Do not unthread the inserted weft ends reliably and curling or looping of these ends is prevented.
- the hold-down is close to each other extend the tie point.
- the tie point is the point at which the rearmost point of the weft insertion channel at foremost position of the reed. An extension of the Hold-down is not possible right up to the binding point, because in this case there is contact between the reed and the hold-down would come with damage is.
- the hold-down devices are essentially semicircular or L-shaped and grip with its front end, which in the runs essentially horizontally, in the foremost position of the Webblattes on both sides in the weft insertion channel. On this front end then closes a curved or beveled section with which the hold-down is fastened is.
- the hold-down device as just form slightly bent sheet metal, so that the attachment of the Hold-down is only slightly above the level of the table, on which the finished fabric rests.
- the Hold-down device via a spring or due to its own Weight exerts a certain contact pressure. But it is also possible to make the hold-down device resilient itself, or with a suitable force or actuator fasten. The contact pressure can then also be dependent on this be adjusted by the requirements.
- the air weaving machine according to the invention also exists Components not shown, such as nozzles or control elements essentially from a table 1 with one attached above it Hold-down device 2, opposite which a reed 3 in the direction of the arrow 17.18 is pivotable. Do this from the right in the direction of the arrow 10 warp threads 5,6 of a warp fed by not closer Shed forming device shown moves in the direction of arrow 11, 12 will.
- these warp threads define the Shed 9.
- Figure 1 shows the situation after repeated insertion of the weft ends 8a and a further transport of the tissue in the direction of the arrow 10th
- the binding point 16 is also shown here.
- Figure 3 shows the front view of the reed 3. It is clear to recognize that the weft entry channel 4 at its entry and Exit end has an extension 13,14. Shape and size of these extensions 13, 14 are dependent on the boundary conditions, in particular, up to which distance from the fabric edge Weft ends should be inserted in the fabric.
- the nose shown in Figure 2 in the weft insertion channel 4 is the original size of the weft insertion channel again, which in the middle of the reed is kept unchanged to a to ensure reliable shooting through of the weft thread 7.
- Figure 3a shows a side view of the reed where recognizable is that the upper part of the weft insertion channel on the two outer ends of the weft insertion channel is expanded, by taking back the upper part of the reed tooth. It this creates a conically widening inlet opening, which is only present in the upper area of the weft insertion channel. This creates space for the arrangement of corresponding further ones Facilities such as a hold-down or the like is created.
- relay nozzle 19 is present, which is an air jet for the weft insertion delivers.
- Figures 4 and 4a show the difference without and with arrangement a hold-down in the area of expansion.
- This insert 20 directs compressed air jets 22 in the direction the fabric edge to be formed to insert the weft end 8a.
- Figure 4 shows that without using a hold-down 2 a Insert edge is realized at which the weft ends tend to unthread or loop-like during tissue formation Form ends, which then strengthen the edges in the edge area is no longer sufficiently guaranteed.
- FIG. 4a shows the use of the invention Hold-down device, which ensures that the weft ends 8a are clean stretched and inserted straight into the fabric 15.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
Description
- Figur 1 :
- eine schematische Seitenansicht des Webvorgangs in einer ersten Webposition;
- Figur 2 :
- eine Ansicht gem. Figur 1 in einer zweiten Webposition;
- Figur 3 :
- ein Webblatt;
- Figur 3a :
- ein Webblatt in der Seitenansicht;
- Figur 4 :
- Draufsicht auf das Gewebe mit eingelegter Kante ohne Niederhalter;
- Figur 4a :
- Draufsicht auf die gleiche Darstellung wie Figur 4, aber mit Benützung eines Niederhalters.
- 1
- Tisch
- 2
- Niederhalter
- 3
- Webblatt
- 3a
- Webblatt
- 4
- Schußeintragskanal
- 5
- Kettfaden
- 6
- Kettfaden
- 7
- Schußfaden
- 8
- eingebundener Schußfaden
- 8a
- eingelegtes Schußfadenende
- 9
- Webfach
- 10
- Pfeilrichtung
- 11
- Pfeilrichtung
- 12
- Pfeilrichtung
- 13
- Erweiterung
- 14
- Erweiterung
- 15
- Gewebe
- 16
- Bindepunkt
- 17
- Pfeilrichtung
- 18
- Pfeilrichtung
- 19
- Stafettendüse
- 20
- Einrichtung für pneumatische Einleger
- 21
- Drucklufteinspeisung
- 22
- Druckluftstrahlen zum Einlegen der Fadenenden
Claims (6)
- Luftwebmaschine mit Mitteln um den Schußfaden nach jedem Schußeintrag in den Eintragskanal (4) des Webblattes abzutrennen und die freien Schußfadenenden in das folgende Webfach (9) einzulegen dadurch kennzeichnet, daß der Eintragskanal (4) an seinem Ein- Austrittsende erweitert ist und in diese Erweiterungen (13,14) je ein oberhalb eines Tisches (1) angebrachter Niederhalter (2) eingreift.
- Luftwebmaschine nach Anspruch 1, dadurch gekennzeichnet, daß die Niederhalter (2) sich dicht bis an den Bindepunkt (16) heran erstrecken.
- Luftwebmaschine nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Niederhalter (2) im wesentlichen halbkreisförmig oder L-förmig ausgebildet sind.
- Luftwebmaschine nach einem der Ansprüche 1 - 3, dadurch gekennzeichnet, daß das Andrücken der Niederhalter über eine Feder, mittels Schwerkraft oder über ein Kraft- oder Stellelement erfolgt oder die Niederhalter (2) selbst federnd ausgebildet sind.
- Luftwebmaschine nach einem der Ansprüche 1 - 4, dadurch gekennzeichnet, daß ein automatischer Wechsel zwischen mehreren Niederhaltern vorgesehen ist.
- Luftwebmaschine nach einem der Ansprüche 1 - 5, dadurch gekennzeichnet, daß die Erweiterung jeweils einseitig am oberen Teil des Schußeintragskanals am Webblatt (3,3a) ausgebildet ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4424271A DE4424271C1 (de) | 1994-07-09 | 1994-07-09 | Luftwebmaschinen mit Kantenniederhalter |
DE4424271 | 1994-07-09 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0695821A1 EP0695821A1 (de) | 1996-02-07 |
EP0695821B1 true EP0695821B1 (de) | 1998-09-02 |
Family
ID=6522765
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95110331A Expired - Lifetime EP0695821B1 (de) | 1994-07-09 | 1995-07-03 | Luftwebmaschine mit Kantenniederhalter |
Country Status (4)
Country | Link |
---|---|
US (1) | US5570726A (de) |
EP (1) | EP0695821B1 (de) |
JP (1) | JP2925983B2 (de) |
DE (2) | DE4424271C1 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19545840C1 (de) * | 1995-12-08 | 1997-01-23 | Dornier Gmbh Lindauer | Webblatt (Riet) |
DE19917953C1 (de) * | 1999-04-21 | 2001-01-25 | Dornier Gmbh Lindauer | Pneumatisch betriebener Leistenleger für Webmaschinen |
JP2004068164A (ja) * | 2002-08-01 | 2004-03-04 | Tsudakoma Corp | 製織用筬 |
JP2004197280A (ja) * | 2002-12-20 | 2004-07-15 | Tsudakoma Corp | 製織用筬 |
US7748414B2 (en) * | 2006-12-12 | 2010-07-06 | Itema (Switzerland) Ltd | Method and apparatus for the insertion of weft threads |
AU2009250074A1 (en) | 2008-05-23 | 2009-11-26 | Aktiebolaget Electrolux | Cold appliance |
DE102015217356B3 (de) * | 2015-09-10 | 2016-10-20 | Lindauer Dornier Gesellschaft Mit Beschränkter Haftung | Webmaschine mit einer Vorrichtung sowie Verfahren zum Halten, Zubringen und Eintragen von Schussfäden in ein Webfach |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL151456B (nl) * | 1969-02-04 | 1976-11-15 | Strake Maschf Nv | Weefgetouw met een breedhouder die zich over de gehele weefbreedte uitstrekt. |
CH609106A5 (de) * | 1976-04-13 | 1979-02-15 | Rueti Ag Maschf | |
JPS5331860A (en) * | 1976-09-03 | 1978-03-25 | Nissan Motor | Air guide for airrjet loom |
DE3265120D1 (en) * | 1982-01-13 | 1985-09-12 | Sulzer Ag | Terry loom having an expander device between the reed and the breast beam |
DE3374424D1 (en) * | 1982-12-22 | 1987-12-17 | Nissan Motor | Weft picking device of air jet type weaving loom |
EP0291744A3 (de) * | 1987-05-19 | 1991-08-07 | Zvs Vyzkumnevyvojovy Ustav Koncernova Ucelova Organizace | Vorrichtung zum Herstellen von eingelegten Leisten in Webmaschinen |
DE3740666C1 (de) * | 1987-12-01 | 1989-03-02 | Dornier Gmbh Lindauer | Schusseintragvorrichtung fuer pneumatische Webmaschinen mit wenigstens zwei zu einem Buendel zusammengefassten Blasduesen |
DE3821725A1 (de) * | 1988-04-07 | 1989-10-26 | Dornier Gmbh Lindauer | Luftwebmaschine |
JPH02112442A (ja) * | 1988-10-15 | 1990-04-25 | Nissan Motor Co Ltd | 空気噴射式織機の緯入れ装置 |
DE3940279A1 (de) * | 1989-12-06 | 1991-06-13 | Kloecker Entwicklungs Gmbh | Verfahren zum bilden einer einlegekante |
IT1251849B (it) * | 1991-09-23 | 1995-05-26 | Somet Soc Mec Tessile | Metodo per la formazione della cimossa rientrata in telai senza navetta ed in particolare in telai ad aria e dispositivo per realizzare tale metodo |
-
1994
- 1994-07-09 DE DE4424271A patent/DE4424271C1/de not_active Expired - Fee Related
-
1995
- 1995-07-03 DE DE59503421T patent/DE59503421D1/de not_active Expired - Lifetime
- 1995-07-03 EP EP95110331A patent/EP0695821B1/de not_active Expired - Lifetime
- 1995-07-07 US US08/499,729 patent/US5570726A/en not_active Expired - Fee Related
- 1995-07-07 JP JP7171889A patent/JP2925983B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE4424271C1 (de) | 1995-06-29 |
EP0695821A1 (de) | 1996-02-07 |
JP2925983B2 (ja) | 1999-07-28 |
JPH0860494A (ja) | 1996-03-05 |
US5570726A (en) | 1996-11-05 |
DE59503421D1 (de) | 1998-10-08 |
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