EP0828883B1 - Entfernung eines schussfadens bei einer reihenfachwebmaschine - Google Patents
Entfernung eines schussfadens bei einer reihenfachwebmaschine Download PDFInfo
- Publication number
- EP0828883B1 EP0828883B1 EP96909003A EP96909003A EP0828883B1 EP 0828883 B1 EP0828883 B1 EP 0828883B1 EP 96909003 A EP96909003 A EP 96909003A EP 96909003 A EP96909003 A EP 96909003A EP 0828883 B1 EP0828883 B1 EP 0828883B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- weft thread
- removal
- accordance
- weft
- weaving
- 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
- 238000009941 weaving Methods 0.000 claims description 56
- 239000004744 fabric Substances 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 15
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims description 2
- 210000000056 organ Anatomy 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D51/00—Driving, starting, or stopping arrangements; Automatic stop motions
- D03D51/06—Driving, starting, or stopping arrangements; Automatic stop motions using particular methods of stopping
- D03D51/08—Driving, starting, or stopping arrangements; Automatic stop motions using particular methods of stopping stopping at definite point in weaving cycle, or moving to such point after stopping
- D03D51/085—Extraction of defective weft
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D41/00—Looms not otherwise provided for, e.g. for weaving chenille yarn; Details peculiar to these looms
- D03D41/005—Linear-shed multiphase looms
Definitions
- the invention relates to a method and a Device for removing a weft thread in a Series shed.
- a series shed weaving machine has a roller-shaped one Weaving rotor on which is partially wrapped in warp threads is.
- On the surface of the web rotor are subject-forming Arranged elements that the warp threads in a High-level location or in a low-level location hold so that in the direction of the weaving rotor Running shed is created through which weft threads by means of a fluid such as air.
- On Webrotor has a plurality of simultaneously opened Weaving compartments so that a plurality of Weft threads can be inserted into the weaving rotor.
- a disadvantage of the known row shed weaving machine is to see that a entered in the web rotor Weft thread is no longer removable, especially if if the weft is already on the weft insertion side was cut. Such removal is for example required if the weft is due to a Weft breakage or a plug formation in the area the weft thread tip is not completely in the shed was entered. For example, a further Warp thread breakage occur to eliminate under Under certain circumstances, a fully inserted weft thread must be removed.
- the invention has for its object a method and a device for removing a weft thread to create a row shed weaving machine.
- FIG. 3 shows a perspective view of components a row shed weaving machine, in particular a weaving rotor 1 with a weft distributing device 22, one Weft removal device 13 and one weft entry-side holding device 21a and one Shot arrival-side holding device 21b.
- the roller-shaped weaving rotor 1 has on its surface Compartmental organs 4, which are arranged side by side rectilinear over the entire width B of the weaving rotor run and the weaving rotor 1 partially looping warp threads 8a, 8b in a high shed manner into a low position so that a shed 16 is formed between the warp threads 8a, 8b, through which a weft thread 10a, 10b, 10c, 10d, 10e can be entered.
- the weft 10a is already complete, across the entire width B of the Web rotor 1 running, entered in the web rotor 1 and is on the weft entry side 1a by a holding device 21a and shot arrival side 1b from another Holding device 21b held and with an in Direction of rotation 14 extending movement to the Fabric stop edge 11b promoted.
- the holding device 21a, 21b has an elastic band 23 between which the weft 10a is held.
- guide rollers 24 and a support element 25 set the course of the elastic band 23 firmly.
- Shot arrival side is 1b a stretching nozzle 20 arranged just around one fully inserted weft 10b stretched to hold until it is caught by the holding device 21b and is further promoted.
- the exemplary embodiment is a sensor 26 Arranged on the shot arrival side 1b around a complete Monitor entry of weft 10a.
- the sensor 26 is via an electrically conductive connection means 26a connected to a downstream evaluation electronics.
- the warp threads 8a, 8b with sensors can be monitored to determine a warp thread break.
- Above the web rotor 1 there is one Weft removal device 13 arranged which a removal means 13a, which over Connection means 131 with a drive device 13k connected is.
- the drive device 13k are electromotive drives provided to the Removal means 13a in a translational and / or to shift rotational movement.
- the Drive device 13k can also by others Drive types can be moved such as by pneumatic drives.
- 2a shows a side view of one in the direction of rotation 14 rotating web rotor 1 with center of rotation 15.
- anchoring elements 3 On its cylindrical base body 2 are anchoring elements 3 arranged, which each have a compartment holder 4 and hold a stop element 9.
- the specialist organ 4 points a guide section 5, in which warp threads 8a such be placed in a high position are held. Further warp threads 8b run next to the Shed holding element 4, so that these warp threads 8b in one Take the low position so that between the warp threads 8a, 8b a shed 16 is created, through which a Weft thread 10b, inside the compartment holding element 4 running, with the help of a fluid like air in the Web rotor 1 can be entered.
- the warp threads 8a, 8b run via a fabric table 12, on the fabric table 12 the created tissue 11 rests and a Tissue stop edge 11a is formed.
- the weft 10a is held by the warp threads 8a, 8b, and was from Channel 4a through the opening 4b in the shown location brought.
- a Removal means 13a arranged with needle 13b. Not that which moves the removal means 13a is shown 13k drive.
- Fig. 2b shows a braked and now stationary web rotor 1.
- the Removal means 13a can, for example, be hook-shaped trained needle 13e, which, as in Fig.
- the removal means can also, as in Fig. 1d shown as a rotating, hook or be reel-shaped removal means 13i, which is around a center of rotation 13g in the direction of rotation 13h rotatably mounted hook-shaped spacer 13f includes.
- Such a rotating removal means 13i can be outside the weaving width B, weft entry side 1a or be arranged on the shot arrival side 1b.
- Fig. 4 shows a weft entry side 1a arranged Removal means 13i.
- the weft 1a was a rotating cutting device 27, so that the end of the weft 10a from the Holding device 21a is held.
- a turning of the Removal means 13i, as in Fig. 1d shown immersing the hook-shaped Distance part 13f between the tissue stop edge 11a and the weft 10a so that the weft 10a seized and while winding on the Removal means 13i from the warp threads 8a, 8b is pulled out.
- the weft 10a is made the holding device 21a pulled out, so that the Weft thread 10a through the removal means 13i is completely removed.
- the weaving rotor 1 is at a standstill, it is in addition to that Removal of the weft thread 10a mostly also required the not yet fully inserted weft threads 10b, 10c, 10d and 10e to remove a faultless one To ensure start of the weaving rotor 1. Since the Weft threads 10b, 10c, 10d, 10e on the weft insertion side 1a they cannot be cut by yet shown, the weft distributing device 22nd upstream weft conveyors withdrawn so that the weft threads 10b, 10c, 10d, 10e can be completely removed from the weaving rotor 1 in this way are.
- the weft threads located in the weaving rotor 1 10b, 10c, 10d, 10e can also be separated Cutting device separated from the supplied thread and another Weft removal device or by hand be completely removed.
- Fig. 2b the one shown in Fig. 2a still existing weft 10b through the Weft conveyor retracted and such away.
- the removal of the weft thread 10a in the in Figure 2b situation can prove to be difficult design, for example, when the weft 10a and the warp threads 8a, 8b are such that they exert a high frictional force on each other, so that a Pulling out the weft thread 10a from the warp threads 8a, 8b is hardly possible or only with great force.
- the weaving rotor 1 stopped and the needles 13b of the removal means 13a over the entire weaving width B immersed in the warp threads 8a, 8b. Then the Weaving rotor 1, as shown in FIG. 2c, rotated further, the removal means 13a being moved in such a way that the weft thread 10a on the fabric edge 11a is struck with the needles 13b between the Weft thread 10a and the fabric edge 11a come to rest. After opening the shed 16a further, as in Fig.
- Fig. 5 shows a longitudinal section through a fabric.
- the Weft thread 10a is on the weft insertion side 1a of one elastic band 23 held between the Warp threads 8a, 8b and is on the weft arrival side 1b held by a further elastic band 23.
- the useful fabric has a width B. on, with a zone C without warp threads 8a, 8b follows, and then one Auxiliary edge D, formed by the weft thread 10a and Warp threads 8a, 8b is arranged.
- the removal agent 13a also has a cutting device on both sides 13m, which when the needles 13b are immersed in the Warp threads 8a, 8b the weft thread 10a in the zone C. severed so that the weft thread 10a more easily from the Useful fabric with width B is removable.
- Fig. 1f again shows an embodiment of a Removal means 13a with crossbeams 13c and regularly spaced needles 13b, being at both ends of the Crossbar 13c each have a cutting device 13m which, in the present embodiment, is one Blade with cutting edge 13n is designed.
- Fig. 1e shows a side view of the blade 13m with cutting edge 13n, which between the tissue stop edge 11a and the Weft thread 10a is immersed, so that the weft thread 10a is cut, either by the fact that the Weft thread 10a struck and against the cutting edge 13n is pressed, or in that the cutting edge 13n is moved towards the weft thread 10a.
- the braking of the weaving rotor 1 is very quick take place, as shown in Fig. 2b, in a fraction one turn of the weaving rotor 1.
- This is indicated by a the weaving rotor acting braking device, which acts exclusively on the weaving rotor, so that the Web rotor 1 asynchronous to the movement of the other components is braked.
- the braking device is not shown. It has an advantageous effect on the central shaft of the weaving rotor.
- the asynchronous braking of the weaving rotor 1 has the advantage that the weaving rotor with all available from the braking device Braking power can be braked without moving other components of the row shed loom consider. This allows the weaving rotor 1 to move so quickly be braked as possible.
- the weaving rotor advantageously from a separate electric motor driven so that the weaving rotor 1 is kinematic is completely separate from the other components of the Series shed.
- the braking device can be used as a separately arranged device can be provided which exerts a braking effect on the weaving rotor if necessary. It is also possible to use the electric motor Brake device to use to weave the rotor Bring to a standstill.
- the mutually defined position can Row shed weaving machine take automatically because the individual components with a rotation angle sensor are monitored so that their current angle of rotation is known, and the individual components by electromotive drives in a predeterminable Angular position can be brought.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
Description
- Fig. 1a
- Ein hakenförmig ausgestaltetes Entfernungsmittel;
- Fig. 1b,1c,1f
- ein kammartig ausgestaltetes Entfernungsmittel;
- Fig. 1d
- ein haspelförmig ausgestaltetes Entfernungsmittel;
- Fig. 1e
- eine am Entfernungsmittel befestigte Schneidvorrichtung;
- Fig. 2a-2d
- unterschiedliche Stellungen des Webrotors sowie der Schussfadenentfernungsvorrichtung während dem Entfernen von Schussfäden;
- Fig. 3
- eine perspektivische Ansicht einer Reihenfachwebmaschine;
- Fig. 4
- eine weitere perspektivische Ansicht des schusseintragsseitigen Teil einer weiteren Reihenfachwebmaschine;
- Fig. 5
- ein Schnitt durch ein Gewebe mit Hilfskanten.
Claims (14)
- Verfahren zum Entfernen eines Schussfadens (1a) an einer einen Webrotor (1) zur Ausbildung eines Webfaches (16) aufweisenden Reihenfachwebmaschine, dadurch gekennzeichnet,dass mit Hilfe eines Sensors (26) ein Zustand detektiert wird, welcher ein Entfernen eines eingetragenen Schussfadens (10a) erfordert,dass der Webrotor (1) nach dem Detektieren des besagten Zustandes angehalten wird bevor der zu entfernende Schussfaden (10a) an eine Gewebeanschlagkante (11a) angeschlagen wird,und dass der zu entfernende Schussfaden (10a) durch ein Schussfadenentfernungsvorrichtung (13) entfernt wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass ein Zustand, welcher ein Entfernen eines eingetragenen Schussfadens (10a) erfordert, eine Unregelmässigkeit beim Schussfadeneintrag und/oder einen Kettfadenbruch umfasst.
- Verfahren nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass die Schussfadenentfernungsvorrichtung (13) ein Entfernungsmittel (13a; 13i) aufweist, welches zwischen der Gewebeanschlagkante (11a) und dem zu entfernenden Schussfaden (10a) eingeführt wird, um den Schussfaden (10a) zu erlangen.
- Verfahren nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass ein zu entfernender Schussfaden (10a) innerhalb und/oder ausserhalb einer Gewebebreite (B) erfasst und entfernt wird.
- Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass nach dem Anhalten des Webrotors (1) das Entfernungsmittel (13) zwischen der Gewebeanschlagkante (11a) und dem zu entfernenden Schussfaden (10a) eingeführt wird, dass der Webrotor (1) in Drehrichtung (14) weiter gedreht wird, wobei der zu entfernende Schussfaden (10a) zur Gewebeanschlagkante (11a) hin gefördert wird, dass der Webrotor (1) angehalten wird, sobald das Webfach (16a) beim zu entfernenden Schussfaden (10a) wieder geöffnet wird, und dass der zu entfernende Schussfaden (10a) vom Entfernungsmittel (13a) aus dem Webfach (16a) entfernt wird.
- Verfahren nach Anspruch 5, dadurch gekennzeichnet, dass vorgängig dem Entfernen des zu entfernenden Schussfadens (10a) die übrigen sich im Webrotor befindlichen Schussfäden (10b, 10c, 10d, 10e) entfernt werden, insbesondere durch eine Schussfadenfördervorrichtung.
- Verfahren nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass nach dem Entfernen des Schussfadens (10a) der Webrotor (1) sowie die weiteren Komponenten der Reihenfachwebmaschine in eine definierte gegenseitige Stellung gebracht werden und der Webvorgang wieder aufgenommen wird.
- Vorrichtung zur Durchführung des Verfahrens gemäss einem der Ansprüche 1 bis 7 umfassend einen Sensor (26), eine Bremsvorrichtung zum Anhalten eines Webrotors (1) sowie eine beim Webrotor (1) angeordnete Schussfadenentfernungsvorrichtung (13).
- Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, dass die Schussfadenentfernungsvorrichtung (13) oberhalb des Webrotors (1) angeordnet ist.
- Vorrichtung nach Anspruch 8 oder 9, dadurch gekennzeichnet, dass die Schussfadenentfernungsvorrichtung (13) ein Entfernungsmittel (13a) aufweist, welches als ein kammartiges, mit Nadeln (13b), Borsten oder Büscheln (13d) besetztes, parallel zur Gewebeanschlagkante (11a) verlaufendes Mittel ausgestaltet ist.
- Vorrichtung nach Anspruch 10, dadurch gekennzeichnet, dass der Abstand der einzelnen Nadeln (13b), Borsten oder Büscheln (13d) kleiner oder gleich 15 mm beträgt.
- Vorrichtung nach einem der Ansprüche 8 bis 11, dadurch gekennzeichnet, dass die Schussfadenentfernungsvorrichtung (13) zumindest eine Schneidvorrichtung (13m) aufweist, um einen Schussfaden (10a) insbesondere ausserhalb einer Gewebebreite (B) zu durchtrennen.
- Vorrichtung nach Anspurch 8, dadurch gekennzeichnet, dass die Schussfadenentfernungsvorrichtung (13) ein Entfernungsmittel (13a) aufweist, welches hackenförmig oder haspelförmig ausgestaltet ist.
- Reihenfachwebmaschine betrieben nach einem Verfahren nach einem der Ansprüche 1 bis 7 oder aufweisend eine Vorrichtung nach einem der Ansprüche 8 bis 13.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH163995 | 1995-06-02 | ||
CH1639/95 | 1995-06-02 | ||
CH163995 | 1995-06-02 | ||
PCT/CH1996/000160 WO1996038616A1 (de) | 1995-06-02 | 1996-04-26 | Entfernung eines schussfadens bei einer reihenfachwebmaschine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0828883A1 EP0828883A1 (de) | 1998-03-18 |
EP0828883B1 true EP0828883B1 (de) | 2002-02-06 |
Family
ID=4215172
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96909003A Expired - Lifetime EP0828883B1 (de) | 1995-06-02 | 1996-04-26 | Entfernung eines schussfadens bei einer reihenfachwebmaschine |
Country Status (5)
Country | Link |
---|---|
US (1) | US5950684A (de) |
EP (1) | EP0828883B1 (de) |
AU (1) | AU5268296A (de) |
DE (1) | DE59608709D1 (de) |
WO (1) | WO1996038616A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE1014791A6 (nl) * | 2002-04-22 | 2004-04-06 | Picanol Nv | Weefmachine. |
EP2006430B1 (de) * | 2007-06-22 | 2010-11-10 | Promatech S.p.A. | Teilungsvorrichtung und Verfahren zur Entfernung eines fehlerhaften Schussfadens in einer Webmaschine |
FR2981091B1 (fr) * | 2011-10-06 | 2013-12-20 | Michelin Soc Tech | Dispositif et procede d'extraction de trames dans une nappe de renfort destinee a la fabrication d'un pneumatique |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4502512A (en) * | 1982-07-21 | 1985-03-05 | Seisakusho Kabushiki Kaisha Toyoda Jidoshokki | Method for treating a weft yarn upon stoppage of a shuttleless loom and device for effecting the same |
JPS59216956A (ja) * | 1983-05-20 | 1984-12-07 | 株式会社豊田自動織機製作所 | 無杼織機における緯糸処理方法 |
FR2583435B1 (fr) * | 1985-06-14 | 1987-09-18 | Picanol Nv | Procede et dispositif d'extraction de fils de trame defectueux d'un metier a tisser sans navette |
DE3843399A1 (de) * | 1988-10-11 | 1990-04-12 | Dornier Gmbh Lindauer | Luftwebmaschine mit einer vorrichtung zur entfernung eines fehlerhaften schussfadens aus dem webfach |
DE59207389D1 (de) * | 1992-08-11 | 1996-11-21 | Rueti Ag Maschf | Vorrichtung zum Halten von Schussfäden für Reihenfachwebmaschinen |
EP0625601B1 (de) * | 1993-05-21 | 1997-01-15 | Sulzer RàTi Ag | Schneidvorrichtung für Schussfäden und Webmaschine mit einer solchen Vorrichtung |
DE59408395D1 (de) * | 1994-05-30 | 1999-07-15 | Rueti Ag Maschf | Vorrichtung und Verfahren zur Behebung von Unregelmässigkeiten beim Eintrag eines Schussfadens in einen Webrotor einer Reihenfachwebmaschine |
EP0685585B1 (de) * | 1994-05-30 | 1999-06-09 | Sulzer RàTi Ag | Vorrichtung und Verfahren zur Behebung von Unregelmässigkeiten beim Eintrag eines Schussfadens in einen Webrotor einer Reihenfachwebmaschine |
-
1996
- 1996-04-26 DE DE59608709T patent/DE59608709D1/de not_active Expired - Fee Related
- 1996-04-26 WO PCT/CH1996/000160 patent/WO1996038616A1/de active IP Right Grant
- 1996-04-26 US US08/973,043 patent/US5950684A/en not_active Expired - Fee Related
- 1996-04-26 EP EP96909003A patent/EP0828883B1/de not_active Expired - Lifetime
- 1996-04-26 AU AU52682/96A patent/AU5268296A/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
AU5268296A (en) | 1996-12-18 |
US5950684A (en) | 1999-09-14 |
EP0828883A1 (de) | 1998-03-18 |
WO1996038616A1 (de) | 1996-12-05 |
DE59608709D1 (de) | 2002-03-21 |
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