EP1126062A1 - Verfahren und Vorrichtung zur Herstellung von Einlegekanten auf Luftdüsenwebmaschinen - Google Patents

Verfahren und Vorrichtung zur Herstellung von Einlegekanten auf Luftdüsenwebmaschinen Download PDF

Info

Publication number
EP1126062A1
EP1126062A1 EP01103476A EP01103476A EP1126062A1 EP 1126062 A1 EP1126062 A1 EP 1126062A1 EP 01103476 A EP01103476 A EP 01103476A EP 01103476 A EP01103476 A EP 01103476A EP 1126062 A1 EP1126062 A1 EP 1126062A1
Authority
EP
European Patent Office
Prior art keywords
weft
channel
receiving channel
shed
insertion line
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.)
Granted
Application number
EP01103476A
Other languages
English (en)
French (fr)
Other versions
EP1126062B1 (de
Inventor
Giancarlo Oprandi
Boris Nettuno
Osvaldo Capitanio
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.)
Promatech SpA
Original Assignee
Promatech SpA
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 Promatech SpA filed Critical Promatech SpA
Publication of EP1126062A1 publication Critical patent/EP1126062A1/de
Application granted granted Critical
Publication of EP1126062B1 publication Critical patent/EP1126062B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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 present invention relates to a method and a device for forming the inset selvage in air looms and in particular to a device of this type operated pneumatically and devoid of movable parts.
  • the weft tail thus formed was sucked up inside a suction nozzle, the nozzle was displaced into a zone upstream of the weft insertion line and, finally, the weft tail was reinserted inside the shed, reversing the direction of the air flow inside the nozzle.
  • This solution has the advantage of providing excellent results from a weaving point of view, providing an inset selvedge free from defects and with a constant height, but has the drawback of the mechanical complexity required for nozzle displacements.
  • the reinsertion of the weft tail in a zone upstream of the weft insertion line is a highly desirable procedure because in this zone the distance between the warp yarns is sufficiently high to ensure that 100% of the weft tails are reinserted correctly inside the shed. If operation takes place in the vicinity of the weft insertion line, as in fact occurs in EP-A-786,547, the distance between the warp yarns is very low and therefore there is the possibility - anything but infrequent - that weft tails may be reinserted outside the shed, i.e. above or below the warp yarns, so that they are not woven inside the fabric together with the following wefts, resulting in a defective fabric.
  • the object of the present invention is therefore that of providing a method and a device for forming the inset selvage in air looms, which are devoid of the drawbacks shown by the known selvedge forming devices and, therefore, in particular, which do not use moving mechanical parts, while allowing reinsertion of the weft tails in a zone upstream of the weft insertion line, and along a direction substantially parallel to said line.
  • This method is preferably implemented using a device according to Claim 5.
  • FIG. 2 The particular structure of the inset selvedge forming device according to the present invention is clearly shown in Fig. 2.
  • This device consists of a block of metallic material 1 formed by a top block 1s and a bottom block 1i, which are assembled together and fixed to the loom in a manner known per se, using screw means (not shown) after performing the necessary mechanical machining operations thereon. Once assembly has been performed, the block 1 appears as in Fig. 2A, while its internal structure, described in detail below, is illustrated in the split views according to Figs. 2B and 2C as well as in Figs. 3A and 3B.
  • the top block 1s has a first vertical through-channel 2 exactly crossing the weft insertion line L.
  • the channel 2 continues into a channel 3 aligned therewith and formed in the bottom block 1i.
  • the top block is also comprises other three vertical through-channels 4, 5 and 6, the axes of which lie in a vertical plane which is perpendicular to the weft insertion line L and positioned at a certain distance from the channel 2, towards the outside of the weaving zone, as can be seen in Figs. 2B and 3A.
  • the channel 4 is a smooth-wall channel, similarly to the former channels 2 and 3.
  • the channel 5 has an internal threading, inside which an adjusting screw 11 with a narrow-diameter central portion is engaged.
  • the channel 6 houses internally an adjustable nozzle 7, the structure of which will be described below, and is provided with end zones with a larger diameter which form the seats for respective sealing O-rings.
  • the channels 4, 5 and 6, finally, are connected together by a transverse channel 8, which channel also has smooth walls.
  • the outlet opening 10 may have any suitable shape in order to create an outlet air jet of the desired shape.
  • a preferred opening 10 has, for example, the shape of a slit, with the larger side arranged parallel to the warp yarns and with the internal walls flared in the form of a triangle, so as to form a fan-type air jet with the desired angular width.
  • the bottom part of the top block 1s is provided with recesses 12 and 13 for guiding the air flows, the function of which will become clear below.
  • the recess 13 is formed in an undercut zone 14 of the block 1s, suitable for allowing the weft yarn T to pass through the block 1.
  • the air flow to the channel 2 is interrupted and an air flow to the channel 4 is activated.
  • the compressed air introduced into this channel splits up at the channel 8 into two streams E and F; the distribution ratio of the streams E and F may be adjusted by operating the screw 11 which throttles, with its end, the flow of the stream E through the recess 12.
  • the compressed air flow E flowing out from the recess 12, interferes with the weft tail C housed inside the channel 3 and begins to transfer the same in a direction perpendicular to the weft insertion line L, i.e. towards a zone upstream of said line, until the weft tail C is positioned in front of the outlet opening 10 of the nozzle 7.
  • the walls of the recess 12 may be formed at the outlet so as to direct the flow E towards the common axis of the channels 2 and 3.
  • the compressed air flow F passes along the whole channel 8, enters into the channel 6 at the narrow-diameter zone 7a of the nozzle 7 and then, penetrating into the inlet openings 9 and into the internal cavity of the nozzle 7, emerges from the opening 10 exactly in the zone to which the weft end C has been transferred by the air flow E.
  • the flow F allows the said weft tail C to be reinserted inside the shed, as schematically illustrated in Fig. 4C and, in greater detail, in Fig. 2C, during the weaving step where in the reed P is moving back towards the beating-up zone.
  • the angular position of the nozzle 7 may be adjusted using an ordinary screwdriver inserted into an end notch 15, so as to obtain the desired direction of insertion of the end C, which is as parallel as possible to the weft insertion line.
  • the weft tail C is displaced by the air flow E from a position aligned with the weft insertion line L into a zone upstream thereof.
  • the insertion of the weft end by the compressed air flow F may be performed in this zone in a reliable manner and parallel to the weft yarns, owing to the fact that the warp yarns are here positioned at a greater distance from each other.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Separation Of Gases By Adsorption (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Storage Of Fruits Or Vegetables (AREA)
EP01103476A 2000-02-14 2001-02-14 Verfahren und Vorrichtung zur Herstellung von Einlegekanten auf Luftdüsenwebmaschinen Expired - Lifetime EP1126062B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI000241 2000-02-14
IT2000MI000241A IT1316367B1 (it) 2000-02-14 2000-02-14 Metodo per la formazione della cimossa rientrata in telai ad aria edispositivo per attuare detto metodo

Publications (2)

Publication Number Publication Date
EP1126062A1 true EP1126062A1 (de) 2001-08-22
EP1126062B1 EP1126062B1 (de) 2006-09-06

Family

ID=11444001

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01103476A Expired - Lifetime EP1126062B1 (de) 2000-02-14 2001-02-14 Verfahren und Vorrichtung zur Herstellung von Einlegekanten auf Luftdüsenwebmaschinen

Country Status (6)

Country Link
EP (1) EP1126062B1 (de)
AT (1) ATE338840T1 (de)
DE (1) DE60122799T2 (de)
ES (1) ES2269237T3 (de)
HK (1) HK1039969A1 (de)
IT (1) IT1316367B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100390342C (zh) * 2001-11-22 2008-05-28 津田驹工业株式会社 织物的织入边形成方法
CZ304325B6 (cs) * 2012-11-16 2014-03-05 Incot Spol. S R.O. Multifunkční zakládací tryska
JP2020169421A (ja) * 2019-04-04 2020-10-15 津田駒工業株式会社 空気噴射式タックイン装置用のタックインヘッド

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE725262C (de) * 1939-09-02 1942-09-18 Sulzer Ag Vorrichtung zum Herstellen fester Kanten bei Geweben
EP0534429A1 (de) * 1991-09-23 1993-03-31 SOMET SOCIETA' MECCANICA TESSILE S.p.A. Verfahren zum Herstellen einer Einlegekante in schützenlosen Webmaschinen, insbesondere Luftwebmaschinen, und Vorrichtung zum Durchführen des Verfahrens
DE19548846C1 (de) * 1995-12-27 1996-10-10 Dornier Gmbh Lindauer Verfahren und Vorrichtung zum Einlegen eines Schußfadens

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE725262C (de) * 1939-09-02 1942-09-18 Sulzer Ag Vorrichtung zum Herstellen fester Kanten bei Geweben
EP0534429A1 (de) * 1991-09-23 1993-03-31 SOMET SOCIETA' MECCANICA TESSILE S.p.A. Verfahren zum Herstellen einer Einlegekante in schützenlosen Webmaschinen, insbesondere Luftwebmaschinen, und Vorrichtung zum Durchführen des Verfahrens
DE19548846C1 (de) * 1995-12-27 1996-10-10 Dornier Gmbh Lindauer Verfahren und Vorrichtung zum Einlegen eines Schußfadens

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100390342C (zh) * 2001-11-22 2008-05-28 津田驹工业株式会社 织物的织入边形成方法
CZ304325B6 (cs) * 2012-11-16 2014-03-05 Incot Spol. S R.O. Multifunkční zakládací tryska
JP2020169421A (ja) * 2019-04-04 2020-10-15 津田駒工業株式会社 空気噴射式タックイン装置用のタックインヘッド
CN111793880A (zh) * 2019-04-04 2020-10-20 津田驹工业株式会社 用于空气喷射式折边装置的折边头
EP3739095A1 (de) * 2019-04-04 2020-11-18 Tsudakoma Kogyo Kabushiki Kaisha Einschlagkopf für lufteinspritzungseinschlagvorrichtung

Also Published As

Publication number Publication date
ITMI20000241A1 (it) 2001-08-14
EP1126062B1 (de) 2006-09-06
ES2269237T3 (es) 2007-04-01
ITMI20000241A0 (it) 2000-02-14
ATE338840T1 (de) 2006-09-15
DE60122799D1 (de) 2006-10-19
HK1039969A1 (en) 2002-05-17
DE60122799T2 (de) 2007-09-13
IT1316367B1 (it) 2003-04-10

Similar Documents

Publication Publication Date Title
EP2330239A1 (de) Einschlagverfahren und -vorrichtung der Schussfadenenden für eine schützenlose Webmaschine
GB1569711A (en) Fluid jet loom
US3958609A (en) Devices for insertion of filling yarn in a loom by means of a fluid
EP1126062B1 (de) Verfahren und Vorrichtung zur Herstellung von Einlegekanten auf Luftdüsenwebmaschinen
US4190067A (en) Method and apparatus for insertion of weft threads in jet weaving machines
US4715410A (en) Weaving loom
JPH0268335A (ja) 織機用ニューマティック式織り耳形成装置
EP3936649B1 (de) Schussfadenspannvorrichtung
US4794958A (en) Auxiliary nozzle for air jet loom
US5316050A (en) Air-operated selvage laying equipment for looms
EP0291744A2 (de) Vorrichtung zum Herstellen von eingelegten Leisten in Webmaschinen
JP2003278052A (ja) 交絡加工してない又は部分的に交絡加工したよこ糸、特に合成フィラメントよこ糸の交絡加工のための方法及びこの方法の実施のための織機
US3376901A (en) Device for making up a weft to be used in connection with a loom
US20020011275A1 (en) Split reed
EP0181882B1 (de) Webmaschine
CN1930336B (zh) 织边制作装置、具有织边制作装置的织机和制作织边的方法
GB2144776A (en) Jet looms
EP1835057A2 (de) Luftdüsenwebmaschine
US4787423A (en) Method of and device for inserting weft yarn in jet looms
US4625771A (en) Apparatus for inserting two weft threads into two warp sheds in a loom with central jet insertion
US6079453A (en) Reed with reed dents having modified chin sections
GB2097828A (en) Weft inserting channel in jet weaving machines
JPS6324144Y2 (de)
GB2135702A (en) Jet loom nozzles
US3738396A (en) Weft storage device

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20011012

AKX Designation fees paid

Free format text: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

17Q First examination report despatched

Effective date: 20030319

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20060906

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060906

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060906

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060906

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 60122799

Country of ref document: DE

Date of ref document: 20061019

Kind code of ref document: P

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061206

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061206

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: PATENTANWAELTE SCHAAD, BALASS, MENZL & PARTNER AG

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070219

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070228

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2269237

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20070607

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070214

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061207

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20080211

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20080206

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20080208

Year of fee payment: 8

REG Reference to a national code

Ref country code: HK

Ref legal event code: WD

Ref document number: 1039969

Country of ref document: HK

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070214

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060906

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060906

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20090214

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20091030

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20090216

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090302

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090214

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090216

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20110218

Year of fee payment: 11

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 60122799

Country of ref document: DE

Effective date: 20120901

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120901

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20150218

Year of fee payment: 15

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160229

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160229

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20200122

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20200219

Year of fee payment: 20

REG Reference to a national code

Ref country code: BE

Ref legal event code: MK

Effective date: 20210214