EP1350876B1 - Webmaschine mit Nadelbarre und Einlegeelement für Kettfäden - Google Patents

Webmaschine mit Nadelbarre und Einlegeelement für Kettfäden Download PDF

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Publication number
EP1350876B1
EP1350876B1 EP03405149A EP03405149A EP1350876B1 EP 1350876 B1 EP1350876 B1 EP 1350876B1 EP 03405149 A EP03405149 A EP 03405149A EP 03405149 A EP03405149 A EP 03405149A EP 1350876 B1 EP1350876 B1 EP 1350876B1
Authority
EP
European Patent Office
Prior art keywords
leno
weaving
weaving machine
insertion element
accordance
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
Application number
EP03405149A
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German (de)
English (en)
French (fr)
Other versions
EP1350876A1 (de
Inventor
Klaus Berktold
Hans-Dieter Scorl
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.)
Itema Switzerland Ltd
Original Assignee
Sultex AG
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 Sultex AG filed Critical Sultex AG
Priority to EP03405149A priority Critical patent/EP1350876B1/de
Publication of EP1350876A1 publication Critical patent/EP1350876A1/de
Application granted granted Critical
Publication of EP1350876B1 publication Critical patent/EP1350876B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C7/00—Leno or similar shedding mechanisms
    • D03C7/06—Mechanisms having eyed needles for moving warp threads from side to side of other warp threads

Definitions

  • the invention relates to a loom with needle bar and insert element for warp threads according to the preamble of claim 1. With such a loom leno cloth can be produced.
  • the invention also relates to a use of the weaving machine according to the invention.
  • a weaving machine with needle bar and insert element according to the preamble of claim 1 is made FR-A-2 174 675 known.
  • a leno harness which consists of two elements, one serving to guide leno threads and the other to guide core threads.
  • the leno threads and ground threads are warp threads.
  • the element for the ground threads may be, for example, a needle bar, which is an array of needles with sockets transverse to the warp threads.
  • the element for the leno threads may be an insert element that is an insertion rail with a linear sequence of holes. The insert element is moved up and down and back and forth relative to the needle bar.
  • the vertical guide movement of the leno threads is a first movement component, which is superimposed by means of a suitably formed frame, a second movement component.
  • the leno threads are periodically moved laterally, d. H. a cyclic offset movement is carried out so that the binding typical of leno fabrics is created by changing the position of the leno threads. Due to the change in position of the leno threads are the positions of the leno threads alternately left and right next to the ground threads; and with each change of position the compartment is opened for a weft insertion.
  • Leno fabrics can be used in the manufacture of tufted carpets.
  • a pile yarn and a prefabricated ground fabric are used.
  • the threads of the pile yarn are by means of a tufting machine in the ground fabric stabbed.
  • the pile threads form loops (pile loops), which are cut, for example, on velor carpets.
  • an adhesive such as Lattex
  • the pile yarn is fixed to the backing fabric.
  • a leno fabric is additionally glued to the back of the carpet.
  • the manufacturer of such reinforced tufted carpets requires in addition to a tufting machine, two types of weaving machines, on the one hand for producing the base fabric, namely a 1/1 fabric, and on the other hand for producing the leno fabric.
  • the 1/1 weave whose weave is plain weave is hereinafter referred to as "plain weave”.
  • This requirement to use two types of looms was felt to be detrimental.
  • the need to overcome this disadvantageous requirement has led to the subject of the present invention.
  • This object is a loom with which both the single and the leno fabric is produced and which is defined by the features specified in claim 1. What previously made two types of weaving machines necessary, namely to weave two types of fabric for the purpose of fabricating said tufted carpet, is now possible with only one type of machine.
  • the weaving machine according to claim 1 makes it possible to produce other fabrics than the single or leno fabrics.
  • the weaving machine comprises a needle bar and an insert element with which warp threads are guided and which are two components of a shed forming device for producing leno fabrics.
  • the two components are moved vertically in a reciprocal manner.
  • a horizontal displacement movement is carried out transversely to the direction of the warp threads.
  • the movements of the two components in conjunction with the entry of a weft thread create a leno weave.
  • the shedding device is modifiable such that, on the one hand, the horizontal offset movement of the insert element is switched off and, on the other hand, a lift of the vertical movement is so enlarged and controlled for both components that a tissue without leno weave, in particular a single weave, can be produced.
  • a leno fabric 1 is made of weft yarns 12 and warp yarns, namely greener yarns 13 and leno yarns 14.
  • the ground threads 13 are guided with a needle bar 3 and the leno threads 14 with an insert element 4.
  • the needle bar 3 carries stander needles 31 with eyelets 32, which are relatively stiff ⁇ senstäbe.
  • the insert element 4 contains an insertion rail 41, which is a perforated rail with holes 42. A sequence of regularly arranged holes 42 is indicated by dashed lines as strips 42 '.
  • the transport direction 10 of the warp threads 13 and 14 (arrows 10a and 10b) and of the Fabric 1 (arrow 10c) from back to front.
  • the transport direction 10 extends from right to left.
  • a reed 2 between the needle bar 3 and the fabric 1 is actuated: double arrow 20.
  • the needle bar 3 and the insert element 4 are moved in opposite directions up and down: double arrows 30 and 40a.
  • the first movement component 40a of the insertion rail 41 is superimposed on a displacement movement 40b as a second movement component.
  • the stroke of the offset motion 40b is selected so that the leno thread 14 is moved from a first gap located between adjacent tower needles 31 and 31 * to a second gap adjacent to the first one.
  • a weft insertion of this layer change of the leno thread 14 is performed again in the opposite direction.
  • the first movement component 40a of the insertion element 4 In order for the first movement component 40a of the insertion element 4 to be able to take place outside the area of the ground threads 13, these are deflected downwards via a deflection bar 53.
  • the needle bar 3 is arranged on a first multi-lever 54a, 54b, 54c forming a four-bar linkage between a first axis 61 (FIG. 3) of the pivoting arrangement and a space-fixed joint 54.
  • the needle bar 3 is firmly connected to a shock lever 54b.
  • the four-bar linkage is fixedly mounted at the pivot point of the joint 54; it is driven by a drive lever 54c connected to the stationary pivot shaft 61 (first axis).
  • a second stationary shaft 71 which is arranged parallel to the first axis 61, is driven in opposite directions with a second multi-lever 71a, 71b, 71c, said driving by a with the pivot shaft 61st Connected drive lever 71 c via a bumper 71 b and a drive lever 71 a is done.
  • the second axis 71 is offset via the second multiple lever 71a, 71b, 71c and an up and down movement 70 ', which is reciprocal to the movement 30', in a relative to the first axis 61 reversed pendulum rotation 70.
  • a lever 74 which connects the second axis 71 with the insert element 4, transmits the pivoting movement and thus generates the vertical movement component 40a of the insertion element 4.
  • the horizontal movement component 40b is produced with a further mechanism (not shown) European Application No. 02405077.5 ).
  • a leno thread deflection bar 714 is attached, which serves for temporarily tensioning the leno threads 14.
  • the swivel arrangement of the shed forming device shown in Fig. 3 is in the modified form, in which a single fabric 1 '(Fig.4, 5) can be produced.
  • the needle bar 3 has been replaced by an eyelet sheet 3 '(with fins 31', eyelets 32 ').
  • the pivoting arrangement, with which the insert element 4 and the eyelet sheet 3 'are moved, is connected via a shaft 81 to the main drive of the loom.
  • a drive power is transmitted from the shaft 81 (rotary motion 80) via cams 82a, 82b to a camshaft drive 6.
  • the insert element 4 is moved only in the vertical direction. This creates the plain weave of the single fabric 1 '.
  • the swivel arrangement comprises the first axis 61 and the second, in opposite directions movable axis 71, which are aligned parallel to the entry path of the weft threads 12 (Fig. 1) and stored in a fixed space in side walls of the loom, not shown.
  • the first axis 61 is offset by the cam gear 6 via the cams 82a, 82b and corresponding rollers 62a, 62b in a pendulum rotation 60.
  • the eyelet sheet 3 ' is disposed on the first multi-lever 54a, 54b between the first axis 61 and the space-fixed hinge 54 ( Figure 2).
  • the second axis 71 is offset via the second multi-lever 71a, 71b in a relative to the first axis 61 reversed pendulum rotation 70.
  • a connection 74 between the second axis 71 and the insert element 4 transmits to this the pivotal movement and thus generates the vertical component of motion 40a of the insertion rail 41st
  • the stroke adjustment for the vertical movements 40a and 30 of the insertion element 4 and the ⁇ senblatts 3 ' can be executed on the two multi-levers, namely with Zweilochhebeln 71c and 54c, each having two hinge holes, said one hinge hole of the production of the single fabric 1' and the other hinge hole is assigned to the production of the leno fabric 1.
  • the two hinge holes can also be a slot (“slot lever") may be provided; or instead of two, more than two joint holes (“multi-hole levers”) may also be provided. If you change back to the production of leno fabrics 1, a smaller stroke is required.
  • the stroke adjustment by a lever shortening is performed by adjusting the two-hole lever 71 c or 54 c (or multi-hole or slot lever) by changing back to the other joint holes.
  • the Hubanpassung can also be done differently.
  • a second set may be provided for a first set of cams 82a, 82b and corresponding cam disc drive 6 used in weaving the leno fabric, which may be brought to the operative position to replace the first set.
  • the insert element 4 is movably arranged on the pivot arrangement.
  • the offset movement 40b is driven by means of an engaging element 4, not shown motor, which may be in particular a linear motor. This motor is switched off when manufacturing the single fabric 1 '.
  • the insert element 4 is flexibly secured to the second axis 71 via elements 74, which are formed as leaf springs.
  • FIGS 4 and 5 show in side views the shed forming device of Fig. 3.
  • the shed formed by the warp threads 13 and 14 is open.
  • the eyelet sheet 3 ' is in an upper position, the insert member 4 in a lower position; in Fig. 5, the situation is reversed.
  • the camshaft drive 8 is a 1: 2 stroke cam arrangement. With this arrangement 8, two weft insertion cycles are performed per revolution of the drive shaft 81.
  • a second cam assembly 8 can be provided on the shaft 81 in the form of change wheels, namely a cam arrangement with which a 1: 1 translation results.
  • FIG. 6 shows three diagrams which represent the sequence of movement of the shedding components for the weaving machine according to the invention, the stroke h being plotted in the direction of the ordinate.
  • the eyelets 32 and holes 42 move in producing a leno fabric as a function of the time t.
  • T is the cycle time of the loom.
  • T / 2 there is a weft insertion 12 *.
  • Corresponding stroke curves 321 and 421 of the eyelets 32 and holes 42 for the single fabric are shown in the middle diagram.
  • the two stroke curves 320 and 321 are shown again for comparison.
  • the eyelets 32 in the plain weave (curve 321) make a full stroke while making a half stroke (curve 320) for the leno weave. A corresponding difference between full and half stroke is also available for the holes 42.
  • FIG. 7 shows a further embodiment of a shed-forming device in which another drive 9 for the shed-forming components (needle bar 3 or eyelet sheet 3 'and inserting element 4) is used.
  • the adjusting means 95 and 97 may each comprise a plurality of parallel adjusting means which are arranged distributed over the weaving width.
  • the number of adjusting means and their performance parameters depend on the weaving width and the to be transferred Workers. It can be used electrical, electromagnetic or fluidic adjusting means. With such adjusting means one obtains a high degree of flexibility in the adjustment of the stroke h: one can thus slightly vary the stroke curves 320, 420 or 321, 421 shown in FIG. A changeover of making one type of fabric to the other is greatly simplified. (Such a shed-forming shed device is also suitable as a "conversion kit" for all types of flat-weave systems, including tape and wide looms.)
  • the weaving machine according to the invention can be used for weaving single and / or leno fabrics, these fabrics being intended for the production of carpets, in particular the above-mentioned needle-shaped carpets.
  • these fabrics being intended for the production of carpets, in particular the above-mentioned needle-shaped carpets.
  • other uses are possible.
  • weaving machines for the simultaneous weaving of single and / or leno fabrics.
  • individual weaving machines can also be used in phases for weaving single fabric and after each adaptation of the shed forming device in phases for weaving leno fabrics. This makes it possible to respond flexibly to a variable requirement for one of the two types of tissue.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP03405149A 2002-04-04 2003-03-05 Webmaschine mit Nadelbarre und Einlegeelement für Kettfäden Expired - Lifetime EP1350876B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP03405149A EP1350876B1 (de) 2002-04-04 2003-03-05 Webmaschine mit Nadelbarre und Einlegeelement für Kettfäden

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP02405262 2002-04-04
EP02405262 2002-04-04
EP03405149A EP1350876B1 (de) 2002-04-04 2003-03-05 Webmaschine mit Nadelbarre und Einlegeelement für Kettfäden

Publications (2)

Publication Number Publication Date
EP1350876A1 EP1350876A1 (de) 2003-10-08
EP1350876B1 true EP1350876B1 (de) 2007-06-20

Family

ID=28459612

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03405149A Expired - Lifetime EP1350876B1 (de) 2002-04-04 2003-03-05 Webmaschine mit Nadelbarre und Einlegeelement für Kettfäden

Country Status (4)

Country Link
US (1) US6945281B2 (enrdf_load_stackoverflow)
EP (1) EP1350876B1 (enrdf_load_stackoverflow)
JP (1) JP2003301345A (enrdf_load_stackoverflow)
DE (1) DE50307503D1 (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7543610B2 (en) * 2006-06-16 2009-06-09 Sultex Ag Thread clamp for a rapier head
CN103243461B (zh) * 2013-05-20 2014-08-13 苏州华毅机械有限公司 一种织布机织边装置
BE1022146B1 (nl) * 2014-06-13 2016-02-19 Picanol Zelfkantvormingsinrichting voor een inslagdraad
DE202018103292U1 (de) * 2018-06-12 2018-07-20 Gebrüder Klöcker GmbH Klemmvorrichtung zur lösbaren Verbindung einer Harnischschnur mit einer Hebelitze einer Dreherbindungsvorrichtung

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE588059C (de) 1932-07-27 1933-11-11 Aeg Elektromagnetisch betaetigte Weichenstellvorrichtung
DE586059C (de) * 1932-09-03 1933-10-16 Erich Roessler Verfahren und Vorrichtung zur Herstellung von gemusterten Schaft- und Jacquarddrehergeweben
DE646462C (de) * 1935-05-21 1937-06-14 Bruno Gruenler Drehervorrichtung
FR2174675A1 (en) * 1972-03-06 1973-10-19 Terhaerst Masch Loom for weaving gauze - having one heald frame movable laterally
IT1271950B (it) * 1993-02-11 1997-06-10 Nuovopignone Ind Meccaniche Ef Perfezionamenti in un telaio tessile
JP2001159046A (ja) * 1999-11-16 2001-06-12 Sulzer Textil Ag からみ織を製造するための装置
US6510587B2 (en) * 2001-05-14 2003-01-28 Sargent & Greenleaf, Inc. Door closure prevention apparatus and method

Also Published As

Publication number Publication date
JP2003301345A (ja) 2003-10-24
DE50307503D1 (de) 2007-08-02
US6945281B2 (en) 2005-09-20
EP1350876A1 (de) 2003-10-08
US20030188794A1 (en) 2003-10-09

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