EP1576218B1 - Schaftrahmen und webschaft für webmaschinen - Google Patents

Schaftrahmen und webschaft für webmaschinen Download PDF

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Publication number
EP1576218B1
EP1576218B1 EP03789190A EP03789190A EP1576218B1 EP 1576218 B1 EP1576218 B1 EP 1576218B1 EP 03789190 A EP03789190 A EP 03789190A EP 03789190 A EP03789190 A EP 03789190A EP 1576218 B1 EP1576218 B1 EP 1576218B1
Authority
EP
European Patent Office
Prior art keywords
heald
heddle
metal
support rail
strand
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
EP03789190A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1576218A1 (de
Inventor
Johannes Bruske
Günther Büchle
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.)
Groz Beckert KG
Original Assignee
Groz Beckert KG
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 Groz Beckert KG filed Critical Groz Beckert KG
Publication of EP1576218A1 publication Critical patent/EP1576218A1/de
Application granted granted Critical
Publication of EP1576218B1 publication Critical patent/EP1576218B1/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
    • D03C9/00—Healds; Heald frames
    • D03C9/06—Heald frames
    • D03C9/0608—Construction of frame parts
    • D03C9/0616—Horizontal upper or lower rods
    • D03C9/0633—Heald bars or their connection to other frame parts
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C9/00—Healds; Heald frames
    • D03C9/06—Heald frames
    • D03C9/0691—Arrangements of means for damping or noise reduction

Definitions

  • the invention relates to a shaft frame, in particular for looms.
  • the shaft (also referred to as heald) of a loom is formed by a shaft frame, are held on the strands.
  • the strands each have an eye for a passing warp. A movement of the shaft in the longitudinal direction of the strand therefore displaces the warp threads out of the warp thread plane, whereby a compartment, for example, for insertion of a weft thread, is formed.
  • the Utility Model G 94 13 705 proposes to provide on the heddle head of each strand a closely dimensioned transverse groove into which a strip-like projection of a drive support rail belongs, which is part of the shaft frame.
  • this requires a corresponding adjustment of the strand heads.
  • the introduction of force in the strand head is relatively punctual.
  • the shaft frame has a first stationarily mounted heddle support rail and a second heddle support rail, which is parallel to the first reel support rails and which is adjustable via an adjustment apparatus to and from the first reel support rail.
  • Strands threaded onto the heddle rails can freely set their distances to one another as long as they are freely displaceable. To promote this, the distance between the two healds is deliberately reduced from time to time.
  • the Litzentragschiene may have two spring legs facing away from each other, which are formed in the manner of lips and perform a resilient movement yielding a pivoting movement.
  • a play-free recording of the stranded head done.
  • This embodiment has the advantage that tolerances in terms of the width of stranded heads of adjacent strands are compensated. This is especially true if the Parts are made of very thin material and thus can be bent at different locations spring to different degrees.
  • the shaft frame It is preferred to connect the shaft frame to at least three spaced drive points with a drive means such as a lever gear.
  • the drive points are arranged over the length of a parallel to a Litzentragschiene extending cross member of the shaft frame.
  • the drive points are preferably chosen so that the deflection of the cross member is minimized under dynamic load.
  • the spring-trained Litzentragschiene is arranged on the drive points opposite side of the shaft frame.
  • the opposite shaft frame portion (cross member), which is connected only at its two ends via corresponding struts with the first-mentioned cross member, may be subject to slightly larger deformations as a result of dynamic loading. However, these are easily compensated by the resilient suspension of the Litzentragschiene. On the whole, this also contributes to increasing the possible operating speed of a corresponding weaving machine.
  • the ratio of the dimensions of the heddle support rail to the If necessary, opening of the heddle head can also be dimensioned so that the heddle head sits on the heddle track with little play.
  • the resilient design of the Litzentragschiene or the resilient mounting of parts thereof can be used in this case to dampen the hitting of the Litzenkopfs on the Litzentragschiene in the reciprocating motion of the heald and thus make it largely harmless.
  • FIG. 1 shows a weaving 1 of a not further illustrated loom.
  • To the heald 1 include a shaft frame 2, which carries a plurality of mutually parallel strands 3.
  • Each strand 3 has approximately centrally in each case an eye 4 (4a, 4b, 4c, 4d, 4e) through which a warp thread runs in each case.
  • Each strand 3 is provided at each end with a heddle head 5, 6 (5a, 5b, 5c, 5d, 5e, 6a, 6b, 6c, 6d, 6e), with which the heddles 3 are held on the heddle rails 7, 8.
  • the Litzentragschienen 7, 8 are supported by the shaft frame 2 and extend at a distance parallel to each other transversely to a direction of movement B of the shaft frame 2, which coincides with the longitudinal direction of the strands 3.
  • the Litzentragschiene 8 is rigidly held on the shaft frame 2, which consists of a lower cross member 9, an upper cross member 11 and two lateral supports 12, 13 which connect the ends of the cross member 9, 11 and extend in the direction of movement B.
  • the heddle support rail 7 is disposed in the immediate vicinity of the cross member 11 and movably supported with respect to this in the direction of movement B.
  • the tension elements 14 are each tensioned by a spring means 16 (16a to 16n) in the form of a compression spring against the cross member 11.
  • the direction of action of the spring means 16 is such that the heddle support rail 7 on the cross member 11 and is stretched away from the cross member 9 and the other Litzentragschiene 8 away.
  • the formation of the heald 1 is also according to the sectional view FIG. 2 to recognize.
  • the cut is made in the immediate vicinity of the support 12.
  • the tension element 14a, the strand 3a and the spring means 16a hide the respective underlying tension elements, strands and spring means.
  • the elements mentioned are of identical design, so that the following description applies equally to all elements indexed from a to e or a to n.
  • the heddle head 5 is c-shaped in side view. It engages around an elongated oval opening 17 whose edge is open on one side 18.
  • the seated in the opening 17 Litzentragschiene 7 has a rectangular cross section. You may, if necessary, be rounded at its top 21 and on its underside 22. It is formed for example of steel or aluminum and extends over the entire width of the shaft frame 2, as seen from FIG. 1 is apparent.
  • the tension elements 14 are formed, for example, by flat or round profiles, which initially extend at right angles away from a flat side of the heddle support rail 7. They are arranged so that the heddle head 5 can not come into contact with them. At a sufficient distance from the heddle support rail 7, the profile bends upwards and extends in the direction of the cross member 11. Above the Litzentragschiene 7, the tension element 14 is again cranked, so that a extending through the guide opening 15 leg 23 is arranged in a common plane with the heddle support rail 7. Thus, the leg 23 is aligned with the strand 3. At the end, the leg 23 carries a pressure plate 24. Between this and the cross member 11, the spring means 16 is supported.
  • the heddle head 6 is seated on the heddle support rail 8, which is designed as a steel profile with a rectangular cross-section and whose upper and lower sides are preferably rounded off.
  • the edge surrounding the opening of the heddle head 6 is laterally open, so that a holding section 25 standing away laterally from the heddle support rail 8 has no contact with the heddle head 6.
  • the distance between the upper side 21 of the Litzentragschiene 7 and the bottom 26 of the Litzentragschiene 8 is slightly relaxed with relaxed spring means 16 as defined by the strand 3 distance between the upper inner side of the Litzenkopfs 5 and the lower inner side of the Litzenkopfs 6.
  • relaxed spring means 16 as defined by the strand 3 distance between the upper inner side of the Litzenkopfs 5 and the lower inner side of the Litzenkopfs 6.
  • strand 3 which consists of a flat material, extends between the heddle support rails 7, 8 in the form of a flat strip.
  • the strand 3 has a heddle head 5, the attachment the strand 3 on the heddle support rail 7 is used.
  • the heddle head 5 has a jaw-like opening 17 pointing in the direction of movement B of the heddle 3, with which the heddle 3 is held on a strip 61, which is preferably integrally connected to the upper heddle guide rail 7.
  • the strip 61 has a rib projecting upwards in the longitudinal direction B of the strand 3, which rib is connected via a web 62 to an extension 63 of the heddle support rail 7 which is oriented parallel to the strip 61. At its top, the bar 61 is rounded. Likewise, the mouth-like opening 17 of the heddle head 5 is rounded in this area.
  • a spring means 14 is formed on the side remote from the opening 17, with which the heddle head 5 is supported on a pressure surface 65 opposite the ledge 61.
  • the pressure surface 65 is formed, for example, on the heddle support rail 7.
  • the spring means 64 is formed for example by a portion of the heddle head 5, which is provided with an opening 66 which extends transversely to the direction of movement of the strand through the heddle head 5. This section extends after the recess 17 and is preferably made of the same material as the rest of the stranded head. Due to the spring means 64 of the heddle head 5 and thus the strand 3 is braced without play with the heddle support rail 7.
  • spring means 64 are possible. It is crucial that the strand 3 is resiliently braced with the heddle support rail 7, 8.
  • the lower cross member 9 is connected to three drive points 27, 28, 29 with a drive device 31, which in the present embodiment by a lever mechanism with three angle levers 32, 33, 34 and connecting rod-like push and pull-transmitting rods 35, 36, 37 is formed is.
  • the rods 35, 36, 37 connect the angle levers 32, 33, 34 with the drive points 27, 28, 29.
  • the drive points 27, 28, 29 are arranged so that the segments of the cross member 9, the drive points 27, 28th , 29 border, in terms of amount approximately equal deform.
  • the other ends of the angle levers 32, 33, 34 are pivotally connected to a common drive rod 38, whose reciprocating motion moves the heald 1 in the direction of movement B.
  • the heald 1 When the heald 1 is equipped with all strands 3, they are stretched between the healds 7, 8.
  • the heddle support rail 7 lies with its upper side 21 against the corresponding inner throat of the heddle head 5.
  • the stranded wire 16 stretches the heddle support rail 7 against the heddle head 5.
  • the heddle 3 is held with its other heddle head 6 on the heddle support rail 8, where it is pressed against the underside 26 of the heddle support rail 8 with the inside of its head opening.
  • the spring means 16 exert a tensile force on the strands 3, which is greater than the resulting acceleration forces acting on the Litzentragschiene 7.
  • the heddle heads 5, 6 are kept in constant contact with the heddle rails 7, 8.
  • the strands do not rattle.
  • the lower cross member 9 experiences a very small deformation due to the three- or multi-point force.
  • a dynamic deformation of the upper cross member 11 is not transmitted to the heald support rail 7 due to the decoupling by the spring means 16. This increases the precision of the strand positioning at high operating speeds over other solutions.
  • the strands 3 are pushed under tension on the Litzentragschienen 7, 8 when the heald 1 is fitted with strands 3.
  • the spring means 16 can be deactivated in order to postpone the strands 3 with play on the support rails 7, 8 can.
  • a locking device 41 is provided, with which the heddle support rail 7 can be locked in a rest position. The rest position is set so that the DIN rail spacing S approximately matches the Litzenkopfabstand A.
  • the locking device may be formed by a pressure rail 42, which is mounted on the cross member 11 vertically, ie in the direction of movement B, slidably.
  • the pressure rail 42 may have an upper projection 43, which serves as a stop means for fixing an end position of the pressure rail.
  • a lower projection 44 may then serve to bias the tension member 14 at its off-center position against the force the spring means 16 to press down to keep the spring means 16 stretched.
  • An actuating device 45 for example in the form of a screw, an eccentric device, a wedge gear or, as illustrated, a fluid actuated expansion element may serve to move the pressure rail 42 downwardly controlled to lock the heddle support rail 7 in the lower position. If the adjusting device 45 is deactivated, the movement of the heddle support rail is released again and the spring means 16 can tension the strands 3.
  • FIGS. 4 and 5 illustrate a modified embodiment of the heald 1 on the basis of the upper heald support rail 7.
  • This is here, in contrast to the above embodiment is not rigid but flexible in itself.
  • the spring rail 7a has at the top as a contact region on a U-shaped portion, which is remote from a support portion 46 leg 47 extends to the plane of symmetry H out.
  • the leg 47 is angled at an obtuse angle to the support region 46.
  • the end of this leg 47 is then angled again to lie flat against the flat support portion 46.
  • the region of the leg 47 adjoining the U-shaped section extends parallel to the carrier region 46.
  • the leg 47 is connected to the carrier region 46, for example welded.
  • the support rail sections 7a, 7b are formed in the manner of resilient lips and can at an acute angle., From each about 10 ° to 30 ° pivot (depending on the embodiment). The dimensioning is made such that the undeformed Litzentragschiene 7, such as FIG. 5 illustrated, the heddle head 5 with very little clearance S1, S2 receives. The clearance, which is preferably in the range of less than 1 mm, is so small that no excessive noise occurs even at high operating speeds.
  • the flexible mounting rail sections 7a, 7b act as resilient buffers and thus absorb shocks and impacts when accelerating and braking the strands 3 gently.
  • FIGS. 6 and 7 be educated. While FIG. 6 roughly illustrates the natural size leaves FIG. 7 recognize the inner structure.
  • This heddle support rail 7 has a rigidly mounted on the support portion 46 upper part 51 on. This is approximately U-shaped in cross-section with a short leg 52 and a long leg 53. The long leg 53 is held at a distance parallel to the support member 46.
  • the part 51 thus forms an asymmetrical, U-shaped groove.
  • openings 54 are attached, through which an extension of a second part 55 extends. This is again asymmetrical, U-shaped. The extension sits with play in the opening 54, so that the part 55 with a certain limited play against the part 51 is moved up and down.
  • the outer contour, ie the in FIG. 6 given height h of the heddle support rail 7 thus formed is preferably slightly larger than the clear inner width of the opening of a Litzenkopfs 5. As a result, each Litzenkopf 5 is biased on the Litzentragschiene 7.
  • a very small game can be provided, just just the lateral Displacement of the strand heads on the heddle support rail 7 allows, but the game is so small that the strand heads do not rattle on the support rail 7.
  • the Litzentragschienen 7 after the FIGS. 4 to 7 realize the basic idea of the tensioned uptake of a stranded head without tension of the strand.
  • the respective spring means in the form of the support rail sections 7a, 7b (spring leg) or the compression spring 56 is fully supported on the heddle head 5.
  • the spring means 16 biases the strand against the other heddle support rail 8.
  • FIG. 5 or 7 achievable if the relationship between mounting rail spacing S and strand head spacing A, as shown in FIG FIG. 2 seen is measured.
  • the heddle support rail 7 is after FIG. 7 turned to a certain extent, ie the rigidly mounted part 51 faces downwards and the movably mounted part 55 points upwards in order to tension the stranded strand 3 as a whole.
  • a heald 1 with low-backlash or backlash-free mounted strands 3 has at least one heddle support rail 7, which is movably mounted for elastic tensioning of the strands 3 as a whole or has at least one movably mounted part 55.
  • a spring means 16, 56 serves to apply a clamping force to the heddle head 5 of each strand 3 for play-free storage thereof. This allows a high operating speed of a weaving machine provided with such a weaving sheaf, without the strands being incorporated into the heald bars or excessive noise occurring.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Vibration Prevention Devices (AREA)
  • Machine Tool Units (AREA)
EP03789190A 2002-12-19 2003-12-10 Schaftrahmen und webschaft für webmaschinen Expired - Lifetime EP1576218B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10260075 2002-12-19
DE10260075A DE10260075B4 (de) 2002-12-19 2002-12-19 Schaftrahmen und Webschaft für Webmaschinen
PCT/EP2003/013972 WO2004057077A1 (de) 2002-12-19 2003-12-10 Schaftrahmen und webschaft für webmaschinen

Publications (2)

Publication Number Publication Date
EP1576218A1 EP1576218A1 (de) 2005-09-21
EP1576218B1 true EP1576218B1 (de) 2009-05-06

Family

ID=32667523

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03789190A Expired - Lifetime EP1576218B1 (de) 2002-12-19 2003-12-10 Schaftrahmen und webschaft für webmaschinen

Country Status (7)

Country Link
US (1) US8146621B2 (enrdf_load_stackoverflow)
EP (1) EP1576218B1 (enrdf_load_stackoverflow)
JP (1) JP2006510815A (enrdf_load_stackoverflow)
CN (1) CN100585040C (enrdf_load_stackoverflow)
AU (1) AU2003293813A1 (enrdf_load_stackoverflow)
DE (2) DE10260075B4 (enrdf_load_stackoverflow)
WO (1) WO2004057077A1 (enrdf_load_stackoverflow)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10329219B4 (de) * 2003-06-28 2007-04-05 Groz-Beckert Kg Schaftstab mit beweglichem Litzendämpfungselement
EP1992724B1 (de) * 2007-05-14 2012-01-25 Groz-Beckert KG Zweiteilbarer Webschaft
CN102851827A (zh) * 2012-09-24 2013-01-02 吴江市隆泰喷织厂 综框的稳定运动装置
EP2730687B1 (de) * 2012-11-08 2015-09-16 Groz-Beckert KG Litze für eine Webmaschine, insbesondere eine Rundwebmaschine
CN104141192B (zh) * 2014-07-11 2015-10-28 青岛铠硕纺机有限公司 交织方式的喷水织机
CN104153103B (zh) * 2014-07-11 2015-10-28 青岛铠硕纺机有限公司 独立供气式纱布交织机
CN106012178A (zh) * 2016-07-26 2016-10-12 江苏工程职业技术学院 一种特殊织物用综框结构
CN106350913A (zh) * 2016-10-12 2017-01-25 江苏工程职业技术学院 一种喷气织机制织纱布专用开口机构
CN111379066B (zh) * 2018-12-27 2021-12-28 苏州迪塔杉针织有限公司 一种多色同类或不同类纱线进行拼接纺织装置
CN109853116B (zh) * 2019-01-23 2024-04-30 广东溢达纺织有限公司 分综装置及分综方法
CN110129949B (zh) * 2019-05-24 2020-11-20 常熟市知识产权运营中心有限公司 一种组装式综框
IT201900009114A1 (it) * 2019-06-17 2020-12-17 Itema Spa Quadro-liccio per telai di tessitura comprendente un dispositivo di frenatura del movimento per inerzia delle maglie nelle fasi di inversione di moto del quadro-liccio

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DE1775590U (de) * 1956-12-24 1958-10-09 Curt Wagner Schaftstab fuer webeschaefte.
US3071164A (en) * 1957-10-28 1963-01-01 Nussbaum Eugen Slideless heddle frame
DE1775590C3 (de) * 1968-08-30 1979-03-15 Towmotor Corp., Cleveland, Ohio (V.St.A.) Hydrostatisches Getriebe mit einer SteUpumpe und einem Hydromotor
CH609385A5 (en) * 1977-02-15 1979-02-28 Sulzer Ag Heald frame
US4106529A (en) * 1976-10-22 1978-08-15 Steel Heddle Manufacturing Company Heddle frame
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CH624159A5 (enrdf_load_stackoverflow) * 1977-10-20 1981-07-15 Staeubli Ag
CH638572A5 (de) * 1979-07-30 1983-09-30 Grob & Co Ag Webelitze.
CH643012A5 (en) 1979-09-28 1984-05-15 Staeubli Ag Heald-frame mechanism between a shedding machine and a weaving machine
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CN1024359C (zh) * 1991-06-29 1994-04-27 广野精机有限公司 织带机的综框装置
SE470313B (sv) * 1992-06-10 1994-01-17 Aelmhults Bruk Ab Anordning vid vävmaskin innefattande individuellt styrda skaftramar
FR2705972B1 (fr) * 1993-06-03 1995-07-21 Staubli Sa Ets Dispositif amortisseur pour machine à tisser.
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BE1010007A3 (nl) * 1996-01-19 1997-11-04 Picanol Nv Weefkader voor weefmachines.
SE508238C2 (sv) * 1997-02-06 1998-09-14 Texo Ab Skaftmaskin för att i vävmaskin styra skaftramarnas rörelser
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DE19962977B4 (de) * 1999-12-24 2012-03-08 Picanol N.V. Webschaft für eine Webmaschine
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DE10329219B4 (de) * 2003-06-28 2007-04-05 Groz-Beckert Kg Schaftstab mit beweglichem Litzendämpfungselement
DE10341629B4 (de) * 2003-09-10 2007-04-12 Groz-Beckert Kg Vibrationsarmes Fachbildesystem
DE10342577B4 (de) * 2003-09-15 2005-07-21 Groz-Beckert Kg Litze mit vermindertem Spiel

Also Published As

Publication number Publication date
WO2004057077A1 (de) 2004-07-08
CN1729328A (zh) 2006-02-01
EP1576218A1 (de) 2005-09-21
CN100585040C (zh) 2010-01-27
US8146621B2 (en) 2012-04-03
DE10260075B4 (de) 2007-02-01
AU2003293813A1 (en) 2004-07-14
DE50311503D1 (enrdf_load_stackoverflow) 2009-06-18
DE10260075A1 (de) 2004-09-02
US20060048836A1 (en) 2006-03-09
JP2006510815A (ja) 2006-03-30

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