EP2920346A1 - Düse mit integrierter schere für eine pneumatische einschlagvorrichtung - Google Patents

Düse mit integrierter schere für eine pneumatische einschlagvorrichtung

Info

Publication number
EP2920346A1
EP2920346A1 EP12816435.7A EP12816435A EP2920346A1 EP 2920346 A1 EP2920346 A1 EP 2920346A1 EP 12816435 A EP12816435 A EP 12816435A EP 2920346 A1 EP2920346 A1 EP 2920346A1
Authority
EP
European Patent Office
Prior art keywords
weft
nozzle
fabric
filling
movable
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
EP12816435.7A
Other languages
English (en)
French (fr)
Other versions
EP2920346B1 (de
Inventor
Jaromir PÁVEK
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.)
Dst Trutnov AS
Original Assignee
INCOT SPOL S R O
Incot Spol Sro
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 INCOT SPOL S R O, Incot Spol Sro filed Critical INCOT SPOL S R O
Publication of EP2920346A1 publication Critical patent/EP2920346A1/de
Application granted granted Critical
Publication of EP2920346B1 publication Critical patent/EP2920346B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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
    • D03D49/70—Devices for cutting weft threads

Definitions

  • NOZZLE WITH INTEGRATED SCISSORS FOR PNEUMATIC TUCK-IN DEVICE
  • the invention relates to layout of multi-function filling nozzle for pneumatic filler of weft thread.
  • the filling nozzle consists of a fixed and a movable part, where the fixed part is equipped with nozzles for filling the weft back to the fabric.
  • the nozzles are connected to. air intake holes and a slot with connected nozzle, while the slot continues with a lead-in key for the weft lead-in.
  • the hitherto solution of the equipment for filling the weft of a weaving loom is solved by using additional mechanic or pneumatic weft fillers.
  • the disadvantage of hitherto known mechanic weft filler is the large number of movable parts significantly reducing the speed of the weaving loom.
  • Another disadvantage is the high operation temperature caused by a high number of mechanic components of the filler. More, it required regular set-up which is a necessary condition of its correct function.
  • an indispensable feature is also the frequent wear and tear of filler components and its frequent faults. Thanks to significant dimensions of the whole set of mechanic filler, the filler is not favourable for the machine operation due to difficult lead-in of warp ends to healds and the beam in the field of the spreader.
  • pneumatic weft filler compared to mechanic filler is its simple solution, when a large number of mechanic parts is eliminated.
  • the pneumatic weft filler can be used for high-speed machines, it has a considerate weft filling using the air pressure, as there is eliminated possible mechanical damage of the weft and the warp with the filling hook, which takes the weft back to the fabric in case of mechanic filler.
  • the pneumatic filler of weft is of small dimensions and so it is suitable for the machine operation as it does not make an obstacle when filling the warp threads in the field of the spreader.
  • the way of filling the weft in both fillers is based on cutting the smashed weft approximately 12 - 15mm from the fabric edge and insertion of the weft end using a hook (in case of mechanic weft filler) or using the nozzle air pressure (in case of a pneumatic weft filler) back to shed consisting of warp threads, when the end of the weft is smashed to the fabric by consequent shot.
  • a hook in case of mechanic weft filler
  • nozzle air pressure in case of a pneumatic weft filler
  • the filled weft doubles the texture of the fabric weft to approximately 12 - 5mm from the fabric edge, which negatively affects not only the looming on the machine, but also the consequent final refinement of the fabric.
  • This is caused by the construction of mechanic as well as pneumatic versions of weft fillers, when the minimal length of cut end of the weft from the fabric is 12 -15mm. It is not possible to reduce the length of the cut weft end due to construction design of both filler types.
  • the conditions are set by the construction of weft shears layout out of the filling nozzle, as can be seen in Fig. 3.
  • the aim of the invention is to design a new construction solution of the multifunction nozzle filling the weft using air pressure back to fabrics and it simultaneously works as the weft thread shears.
  • the multi-function filling nozzle for pneumatic filler of the weft thread which consists of the fixed part and the movable part, where the fixed part is equipped with nozzles for weft filling back to the fabric, connected to the air intake holes and a slot with connected nozzle, while the slot continues with a lead-in key, based on the fact that the fixed part on one of its sides is equipped with a fixed edge, which makes its integral part and simultaneously it makes a fixed part of the weft shears , while the movable part consists of a movable arm, holding a movable edge, representing the movable part of the weft shears.
  • the main advantage of the multi-function filling nozzle is based on the fact that it consists of the fixed part and the movable part when the fixed part is equipped with nozzles for filling the weft back to the fabric and it simultaneously makes the fixed part of the weft shears for cutting the weft with the movable arm with the shears edge, making the movable part of the nozzle. That means that this is a nozzle, which fills - using the air pressure - the weft back to fabric and simultaneously it serves as the weft thread shears.
  • This design of multi-function nozzle construction allows reduction of the weft length filled back to the fabric to max.
  • the lead-in of the warp threads making the lead-in of the fabric edge can be simultaneously texture adjusted in such a way so as to avoid different tension of warp threads of the fabric pattern and the edge.
  • the weft is more precisely placed in the shed and so there is reduced the total time of cut and weft filling, while it is not necessary to brake and stabilise the weft before cutting,
  • the multi-function nozzle requires minimal maintenance and setup, • due to balanced tension of warp threads in the pattern and in the fabric edge there does not appear corrugation of the fabric edges and increased number of warp thread breaks, which secures higher productivity of the machine,
  • Fig. 1 shows the multi-function filling nozzle from the side of nozzles for blowing the weft to the shed
  • Fig. la shows the detail of the slot for warp with inner nozzle
  • Fig. 2 shows the multifunction filling nozzle with a movable and a fixed part equipped with edges creating the weft shears, which make its integral part
  • Fig. 3 shows the original version of the weft shears, always layout out of the filling nozzle.
  • the layout of the multi-function filling nozzle for the pneumatic weft filler, used for air-introduced edge of the fabric, is shown in Fig. 1 , Fig. 1a and Fig. 2.
  • the multifunction filling nozzle consists of the fixed part 1 and the movable part 2 of the multifunction filling nozzle.
  • the fixed part 1 of the filling nozzle is equipped on one of its sides with a fixed edge 5, which makes its integral part.
  • the fixed edge 5 is one of the parts of weft shears, while - so as to arrange long service life of weft shears - the fixed edge 5 is made of noble steel.
  • the other side of the fixed part ⁇ of the multi-function filling nozzle is equipped with several nozzles 7.
  • the nozzles 7 serve for filling the weft 9 to the shed and they are placed on both sides of the slot 6, which is connected with the inner nozzle.
  • the fixed part of the multi-function filling nozzle is also equipped with the lead-in key 8, which passes into the slot 6 designed for blowing the cut weft 9 from the slot 6.
  • On the upper part of the fixed part 1 of the multi-function filling nozzle there are created holes 3 for air intake to nozzles 7.
  • the movable part 2 of the multi-function filling nozzle consists of a movable arm which meets the function of a movable edge of weft shears.
  • the movable arm 2 holds a movable edge 4, made of noble steel, which guarantees its long service life and so even the long service life of weft shears as a whole.
  • the multi-function filling nozzle makes a part of the complete set of pneumatic filler.
  • the weaving loom includes two pneumatic fillers. One of them is designed for filling the weft 9 of the fixed edge for the left side of the fabric and the other one for filling the weft 9 of the fixed edge for the right side of the fabric.
  • the filled weft 9 in the shed is hit by the beam to the fabric, when the weft 9 goes perpendicularly to the fixed part i of the multi-function filling nozzle and it leads in across the lead-in key 8 of the weft 9 to the slot 6 with the inner nozzle 6 for blowing out the cut weft 9 from the slot 6.
  • the multi-function filling nozzle makes a part of the complete set of the pneumatic filler.
  • Such a device is used as an additional device to a weaving loom, when fixed edge of the fabric is required.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP12816435.7A 2012-11-16 2012-12-10 Düse mit integrierter schere für pneumatischen einlegeleistenapparat Not-in-force EP2920346B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CZ2012-797A CZ304325B6 (cs) 2012-11-16 2012-11-16 Multifunkční zakládací tryska
PCT/CZ2012/000130 WO2014075646A1 (en) 2012-11-16 2012-12-10 Nozzle with integrated scissors for pneumatic tuck-in device

Publications (2)

Publication Number Publication Date
EP2920346A1 true EP2920346A1 (de) 2015-09-23
EP2920346B1 EP2920346B1 (de) 2019-04-03

Family

ID=47594154

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12816435.7A Not-in-force EP2920346B1 (de) 2012-11-16 2012-12-10 Düse mit integrierter schere für pneumatischen einlegeleistenapparat

Country Status (3)

Country Link
EP (1) EP2920346B1 (de)
CZ (1) CZ304325B6 (de)
WO (1) WO2014075646A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104846517A (zh) * 2015-04-16 2015-08-19 苏州盛达织带有限公司 一种多功能织带生产设备
CN104805570A (zh) * 2015-04-16 2015-07-29 苏州盛达织带有限公司 织带生产设备

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE59005938D1 (de) * 1990-01-23 1994-07-07 Rueti Ag Maschf Leistenlegevorrichtung für Webmaschine.
IT1316367B1 (it) * 2000-02-14 2003-04-10 Somet Soc Mec Tessile Metodo per la formazione della cimossa rientrata in telai ad aria edispositivo per attuare detto metodo
BE1013428A3 (nl) * 2000-05-08 2002-01-15 Picanol Nv Kanteninleginrichting voor weefmachines.
CZ20011018A3 (cs) * 2001-03-20 2003-01-15 Trustfin, A. S. Zařízení pro odstřižení a zachycení útku
BE1017684A3 (nl) * 2007-07-12 2009-03-03 Picanol Nv Werkwijze voor het inleggen van een einde van een inslagdraad in een kant van een weefsel en pneumatische kanteninlegger.
JP5309003B2 (ja) * 2009-11-30 2013-10-09 津田駒工業株式会社 無杼織機におけるタックイン方法及び装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2014075646A1 *

Also Published As

Publication number Publication date
CZ2012797A3 (cs) 2014-03-05
EP2920346B1 (de) 2019-04-03
CZ304325B6 (cs) 2014-03-05
WO2014075646A1 (en) 2014-05-22

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