EP1573100A1 - Lisse plate - Google Patents

Lisse plate

Info

Publication number
EP1573100A1
EP1573100A1 EP03782273A EP03782273A EP1573100A1 EP 1573100 A1 EP1573100 A1 EP 1573100A1 EP 03782273 A EP03782273 A EP 03782273A EP 03782273 A EP03782273 A EP 03782273A EP 1573100 A1 EP1573100 A1 EP 1573100A1
Authority
EP
European Patent Office
Prior art keywords
strand
spring means
support rail
heald
heddle
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
EP03782273A
Other languages
German (de)
English (en)
Other versions
EP1573100B1 (fr
Inventor
Thomas Schmid
Gerhard Pohl
Johannes Dr. Bruske
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 EP1573100A1 publication Critical patent/EP1573100A1/fr
Application granted granted Critical
Publication of EP1573100B1 publication Critical patent/EP1573100B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • D03C9/02—Healds
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C9/00—Healds; Heald frames
    • D03C9/02—Healds
    • D03C9/022—Healds anti-buckling
    • 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 heald as can be used in particular as a heald in weaving machines.
  • a heald frame is known from EP 0874930 B1, between the upper and lower cross members of which healds are stretched.
  • the healds are kept stationary at a distance parallel to each other. They have an end eyelet at both ends, which engages around a strand holding profile and is thus held in a form-fitting manner.
  • each heald has an eye through which a thread, for example a warp thread of a weaving machine, runs.
  • the heald frame is moved back and forth in the longitudinal direction of the heald, with very high accelerations occurring. It was therefore tried to clamp the healds so that the end loops on the assigned profile have little or no play.
  • an expandable element in the form of a hose to which fluid can be applied, which passes through the end eyelets parallel to the heddle support profile and clamps it in the expanded state.
  • a heald for a heald frame is known, the end eyelet of which is adapted to the heald support rail, one end eyelet enclosing the heald support rail without play and the opposite end eyelet of the heald enclosing the heald support rail associated therewith with a play which is adapted to the maximum deflection of the heald support rail is.
  • the deflection of the heddle support rails is primarily dependent on the performance of the weaving machines and increases as the weaving machines increase. It is therefore extremely difficult to control the deflection which is the play of an end loop of the heald determined according to DE 195 48 176, to be defined in advance. If at all, it can often only be determined when the weaving machine is in operation.
  • a heald for a heald frame is known from DE 10035886 and GB 1959, which has an elastic connecting means between the heald and its end eyelet. This makes the strand more elastic and facilitates the subsequent attachment and replacement of the strand in the strand support rail. However, acceleration and braking forces must be transferred from the end eyelet to the strand via the elastic connecting means.
  • a heald is known from DE 29 35 504, with a heald shaft and end loops, each of which overlaps a heald support rail on one side.
  • the distance between the inner contact surfaces of the end eyelets from one another is greater than the distance between the two outer edges of the two heald support rails, so that the healds sit with play on the heald support rails.
  • a compression spring is arranged on an end eyelet, which is supported at one end on the end eyelet and at the other end on the heddle support rail. The compression spring thus clamps the opposite end eyelet against the heddle support rail.
  • This object is achieved with a stranded wire according to claim 1.
  • the particular advantage of this solution according to the invention is that it manages without changing the weaving machine, in particular without changing the weaving shank.
  • the spring means provided on the end eyelet or connected in one piece enables the strand to be supported without play with respect to the direction of movement of the heald frame, which corresponds to the longitudinal direction of the strand. Rattling, hitting and thus incorporating the stranded head into the stranded support rail is thereby reduced or suppressed.
  • the spring means compensates for tolerances, so that the end eyelet can be held taut between two surfaces lying opposite one another, smaller dimensional deviations of the heddle head or spacing variations between the two pressure surfaces being compensated for by the spring means.
  • the spring means provided on the end eyelet creates the prerequisites for being able to clamp end eyelets and thus strands on the heddle support rail.
  • a clamping means in the form of a movably mounted pressure rail which clamps the end eyelets in place, can be provided on the heddle support rail.
  • the spring means provided on the end eyelets enable tolerance compensation, so that all end eyelets are clamped relatively evenly. This creates the prerequisites for a mechanical clamping device in which a single clamping member or a single clamping rail clamps all end eyelets.
  • the spring means also causes a certain amount of buffering when accelerating or braking abruptly. It is the Resiliently formed longitudinal direction of each strand.
  • the spring means is formed by a flat section of the heddle head, which is provided with one or more recesses to increase the axial compliance.
  • the advantage of this embodiment is that the pitch of the strands can be very narrow, ie the spring means does not take up any lateral space. Alternatively, however, it can also be formed by a spring tongue, which is curved laterally, for example. The advantage of this embodiment can be an increased flexibility of the spring means.
  • the invention can be implemented both on only one end loop of a strand and on both end loops provided at the ends of the strand.
  • the strand is provided with an end eyelet according to the invention only at one end, while the other end is without an end eyelet.
  • the free strand end can be axially displaceably supported in a guide. In this way, relative movements between mutually opposite cross members of a heald frame are not transmitted to the heddle. Such relative movements can occur as a result of dynamic loads when high accelerations act.
  • the strands are designed to be kink-resistant. You can therefore not only transmit tensile but also compressive forces. Kink resistance is achieved, for example, by a bending edge running in the longitudinal direction of the heald or a curvature of the heald.
  • the strands are formed with different cross sections in the two sections, each lying between the end eyelet and the eye. Two different cross-sections with different cross-sectional areas are preferably used, a section from an end eyelet to the eye generally having a constant cross-section.
  • the cross-sections can differ, for example, by the cross-sectional shape. Additionally or alternatively, they can differ in terms of the area of the cross-sectional area.
  • the strand can consist of a flat material of constant thickness, the strand sections, as seen from the flat side, have different widths.
  • the end eyelets provided with the spring means permit clamping by means of a clamping device provided on the heald frame.
  • the clamping device preferably has a rigid clamping piece which interacts with the spring means or the end eyelets and can be actuated mechanically, for example via a wedge clamping device or via a fluid-loaded means.
  • the rigid construction of the clamping piece has the advantage that relatively large forces can be absorbed at certain points, ie the end loops can be clamped with great forces. Further details of advantageous embodiments of the invention result from the drawing, the description or subclaims.
  • Figure 1 is a schematically illustrated heald frame, with support rods, associated heald support rails and healds
  • FIG. 2 heald support rails with heald in a cross-sectional, sectional illustration
  • FIG. 3 shows the heald support rail and heald according to FIG.
  • FIG. 4 shows a modified embodiment of a heald support rail and a heald in a cross-sectional, sectional illustration
  • FIG. 5 shows a further embodiment of a heddle support rail and a heddle in a cross-sectional, sectional illustration
  • Figure 6 and 7 strands cut along a line A-A in
  • FIG. 4 in different embodiments
  • FIG. 8 shows a further embodiment of a heald carrying rail and a heald in a partial front view
  • FIG. 9 shows a modified embodiment of a heddle support rail with a heddle in a cross-sectional representation
  • FIG. 10 shows a heddle support rail with a mechanical adjusting device in a perspective view
  • FIG. 11 shows the stranded support rail according to FIG. 10 in a fragmentary exploded view
  • FIG. 12 shows a complete heald frame according to FIG. 4 in a schematic representation
  • FIG. 13 shows a modified embodiment of a heald and a heald support rail in a cross-sectional, sectional illustration.
  • FIG. 1 schematically shows a heald frame 1 with two supporting or shaft rods 51 and 51 ', two associated heald support rails 3 and 4 and healds 2 according to the invention.
  • FIG. 2 illustrates a section of the heald frame 1 which has a plurality of strands 2 held parallel to one another at a distance from one another.
  • the heald frame 1 has an upper heddle support rail 3 and a lower heddle support rail 4, which grip the upper and lower ends of the heddle 2.
  • the strand 2 consists of a flat material which extends between the strand support rails 3, 4 in the form of a flat strip (strand body).
  • An eye 5 is provided approximately in the middle.
  • the strand 2 has an end eyelet 7, which is used to fasten the strand 2 to the strand support rail 3 and from which the strand body 10 extends.
  • the end loop 7 is illustrated in more detail in FIG. 3. She has a reference. the longitudinal direction Y of the strand 2 open recess 8, with which the strand 2 is held on a strip 9, which is preferably integrally connected to the upper strand support rail 3.
  • the strip 9 has a rib projecting in the longitudinal direction Y of the strand 2, which is connected via a web 11 to an extension 12 of the strand support rail 3 oriented parallel to the strip 9.
  • the bar 9 is rounded at its top.
  • the mouth-like recess 8 of the end eyelet 7 is rounded in this area.
  • a spring means 14 is formed on the end eyelet 7 on the side remote from the recess 8, with which the end eyelet 7 is supported on a pressure surface 15 opposite the bar 9.
  • the printing surface 15 is, for example, on the Stranded support rail 3 formed.
  • the spring means 14 is formed, for example, by a section of the end eyelet 7 or the heddle head, which is provided with an opening 16. This section, following the recess 8, extends away from the eye 5 and is preferably made of the same material as the rest of the end eyelet 7.
  • the opening 16, which can be in the form of a round hole, for example, is surrounded by a closed edge 17 , which is curved in an arc on its outside and touches the pressure surface 15 at a point 18.
  • the edge 17 has a certain flexibility.
  • the spring means 14, which is formed by the portion provided with the opening 16 of the end eyelet 7, can compensate for this excess.
  • the end eyelet 7 then sits under tension on the bar 9 or on the heddle support rail 3. This prevents the end eyelet 7 from swinging back and forth in the longitudinal direction Y.
  • the recess 8 12 limited intermediate space is limited only by a short leg 20 in the between the bar 9 and the extension. This in turn allows the design of very short, compact end loops 7 and correspondingly small stranded support rails 3, which can lead to a reduction in moving masses.
  • the lower heddle support rail 4 (FIG. 2) can in principle be designed like the upper heddle support rail 3. It However, it is advantageous not to run the strand 2 at its end opposite the end eyelet 7 without play but with limited or, as illustrated in FIG. 2, also unlimited play.
  • the lower heddle support rail 4 is provided with a receiving rail 21 which has a guide opening 22 extending in the longitudinal direction Y for each heddle 2.
  • the guide opening corresponds in cross section approximately to the cross section of the strand 2, wherein it has a certain oversize, so that the strand 2 is movably held in the guide opening 22.
  • the heald frame 1 carries out a reciprocating movement in the direction of the longitudinal direction Y of the heddle 2.
  • each thread running through the eye 5 is moved upwards or downwards out of a warp thread plane.
  • the movement takes place almost in leaps and bounds with high acceleration and braking forces.
  • the required forces are introduced into the strand 2 on the strand support rail 3, on which the strand 2 is held without play.
  • the end eyelet 7 is supported on the bar 9.
  • the end eyelet 7 is supported via the location 18 on the pressure surface 15.
  • the spring means 14 does not yield, or only insignificantly.
  • the rigidity of the spring means 14 can be adjusted, for example, by the size of the opening 16. The width of the remaining edge 17 then determines the compliance.
  • FIG. 4 shows a modified embodiment of a Strand 2 illustrates.
  • end eyelet 7 has a differently designed spring means 14, the stranded wire being otherwise designed in accordance with the above description.
  • the spring means 14 is in turn designed like a compression spring 23 in that a section which extends away from the eye 5 following the recess 8 is provided with side cutouts in the end eyelet 7.
  • the end eyelet 7, including the spring means 14 as well as the rest of the strand 2, consists of a relatively thin sheet from which it is cut out.
  • the end eyelet 7 is completely flat, its two lateral cutouts 24, 25 lying opposite one another and offset in the longitudinal direction Y overlapping one another.
  • the remaining S-shaped section is supported with its upper end in turn on the pressure surface 15.
  • FIG. 5 A further modified embodiment of the heald 2 and the heald support rail 3 is illustrated in FIG. 5.
  • This is also an end eyelet 7, the spring means 14 of which lie in the same plane as the end eyelet 7 itself.
  • the spring means 14 is, however, a V-shaped one , the recess 8 in the direction away from the eye 5, opposite incision 26 is formed, which separates two legs 27, 28 from each other.
  • the legs 27, 28 are supported on a pressure strip 29 with a triangular cross section, which can be part of the strip 9 or the heddle support rail 3.
  • the dimensions are in turn chosen so that the pressure bar 29 engages under pretension between the legs 27, 28, so that the end eyelet 7 is held on the bar 9 without play.
  • the legs 27, 28 spring slightly away from one another and towards one another, which is converted by the inclined surfaces of the pressure bar 29 into an axial pressure force with which the end eyelet 7 is secured with its location 19. gene the bar 9 is pressed.
  • a further modified embodiment of the spring means 14 can be seen in Figure 8.
  • All of the strands 2 described above can be used as required and preferably with reference to. their kink resistance under pressure load in the longitudinal direction Y be stiffened.
  • they can have a cross section illustrated in FIG. 7.
  • the strand 2 is curved after its head, the section AA in FIG. 5 is curved.
  • the strand 2 is bent in a groove-like manner, which results in increased kink resistance.
  • the curvature extends, if appropriate, preferably over the entire length of the strand 2 as far as or into the end eyelet 7.
  • a bending edge 32 according to FIG. 6 can also be provided, which extends in the longitudinal direction Y.
  • the bending edge 32 is preferably arranged approximately centrally so that it goes through the eye 5. In an alternative embodiment, it is also possible to provide two bending edges 32, so that there is an overall approximately Z-shaped cross section of the strand 2. The advantage of this embodiment is that the bending edges 32 can extend past the eye 5, which gives the strand 2, in particular in the area of the eye 5, a particular rigidity.
  • Another embodiment of a heald 2 according to the invention is shown in FIG. Without changing the end eyelets 7 and the spring means 14, this strand 2 is optimized in terms of its weight.
  • the distance C which is divided into two sections A and B from the point 19 at which the heald touches the heald support rail 3 in the upper region to the point 19 'at which the heald 2 contacts the heald support rail in the lower region
  • the first section A which extends from the eye area to the start area of the end eyelet, has a narrow cross section SI.
  • section B which lies on the opposite side of the eye and also extends from the eye area to the beginning area of the end loop, the strand 2 has a wider cross section S2.
  • the narrow section with SI is preferably half as wide as the section with S2.
  • the cross sections can additionally or alternatively have different shapes. In the embodiment according to FIG.
  • the shape of the cross section changes in the vicinity of the eye 5 and in the transition area between the end eyelet and the rest of the strand 2. It is also possible for the cross sections lying within the section C of the strand 2 at other points to change.
  • the different cross-sections described above can be realized on strands 2 with spring means of the most varied of shapes.
  • the cross sections of the individual sections A, B can be square, rectangular, oval, circular, elliptical, kidney-shaped, T-shaped, U-shaped or similar.
  • the pressure surface 15 with respect to the bar 9 of the heddle support slide ne 3 has a fixed, non-adjustable position.
  • the strands 2 presented, provided with a spring means 14, are particularly suitable for a strand support rail 3, as can be seen from FIG. 9.
  • a rail 33, on which the pressure surface 15 is formed, and the bar 9 of the heddle support rail 3 are adjustable in relation to one another, so that their distance can be deliberately reduced or increased. This is illustrated in FIG. 9 by an arrow 34.
  • the adjustment option is particularly advantageous for equipping the heald support rail 3 with healds 2.
  • Figure 10 illustrates such a heddle support rail 3 and the associated rail 33 in a perspective view.
  • the rail 33 belongs to a clamping device 35, which can be seen in FIG. 11.
  • the rail 33 is formed for stiffening, for example by a U-profile, the legs 36, 37 of which protrude from the back serving as the pressure surface 15.
  • the rail 33 is assigned a reversely oriented, further rail 38 designed as a U-profile, the legs 41, 42 of which fit between the legs 36, 37.
  • Elongated holes 43 are formed in the legs 41, 42 and lent the longitudinal direction of the rail 38 are inclined.
  • Pins 44 which pass through elongated holes 43, are assigned to elongated holes 43 in legs 36, 37.
  • the pins 44 together with the elongated holes 43 form a wedge device which, when the rails 33, 38 are longitudinally adjusted relative to one another, cause the rails 33, 38 to move away from one another or towards one another.
  • a wave-shaped curved leaf spring 45 arranged between the rails 33, 38 can be provided to tension the rails 33, 38 away from each other. Furthermore, a threaded bolt 46 can be used to adjust the rails 33, 38 longitudinally against one another. Thus, turning the threaded bolt 46 causes an adjustment of the rail 33 and thus at the same time a removal or approach of the pressure surface 15 to the bar 9 of the heddle support rail 3, 4.
  • FIG. 1 A further embodiment of a strand 2 with a c-shaped end eyelet 7 is illustrated in FIG.
  • the elongated strand body 10 extends away from the latter in a first direction.
  • the heddle body 10 can, for example, be aligned with the heddle support rail 3 or offset from it.
  • the spring means 14 formed by the compression spring 23 directly adjoins the end eyelet 7. It is preferably arranged on the side of the end eyelet 7 facing away from the heddle body.
  • the illustrated spring means 14 is only one embodiment. Instead of the compression spring 23, all other spring means 14 disclosed in the present description and their modifications can also be used.
  • the spring means 14 can serve to eliminate the play of the end eyelet 7 on the heddle support rail 3 and to dampen the heddle movement.
  • the spring means 14 in a first embodiment, so that the end eyelet 7, at least when the heald frame 1 is at rest, is constantly pressed against the heddle support rail 3.
  • heddle support rail 3 which consists, for example, of steel
  • a strip such as, for example, according to FIG. 4, which is formed in one piece with the shaft rod, for example from aluminum or an aluminum alloy. This applies accordingly to all of the above exemplary embodiments.
  • An improved strand 2 has on its end eyelet 7 a spring means 14 which resiliently supports the end eyelet 7 on a heddle support rail 3 in at least one direction.
  • the spring means 14 serves to avoid play between the heddle 2 and the heald frame 1. This measure allows the working speed of weaving machines to be increased.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Springs (AREA)

Abstract

L'invention concerne une lisse métallique (2) améliorée présentant, sur son anneau d'extrémité (7), un ressort (14) qui supporte de manière élastique l'anneau d'extrémité (7) sur un rail de lisse (3) dans au moins une direction. Ledit ressort (14) sert à éviter le jeu entre la lisse (2) et la lame (1). Cette caractéristique permet d'augmenter la vitesse de travail des machines à tisser.
EP03782273A 2002-12-19 2003-12-02 Lisse plate Expired - Fee Related EP1573100B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10260024 2002-12-19
DE10260024A DE10260024B4 (de) 2002-12-19 2002-12-19 Weblitze
PCT/EP2003/013555 WO2004057076A1 (fr) 2002-12-19 2003-12-02 Lisse plate

Publications (2)

Publication Number Publication Date
EP1573100A1 true EP1573100A1 (fr) 2005-09-14
EP1573100B1 EP1573100B1 (fr) 2009-09-30

Family

ID=32519205

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03782273A Expired - Fee Related EP1573100B1 (fr) 2002-12-19 2003-12-02 Lisse plate

Country Status (8)

Country Link
US (1) US7281548B2 (fr)
EP (1) EP1573100B1 (fr)
JP (1) JP2006510814A (fr)
CN (1) CN1729327A (fr)
AU (1) AU2003289932A1 (fr)
CZ (1) CZ2005395A3 (fr)
DE (2) DE10260024B4 (fr)
WO (1) WO2004057076A1 (fr)

Families Citing this family (8)

* 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
DE102004037717B3 (de) * 2004-08-04 2005-12-15 Groz-Beckert Kg Schaftstab für einen Webschaft
EP1975293B1 (fr) * 2007-03-26 2012-01-25 Groz-Beckert KG Cadre à lisse en tôle
EP2166138A1 (fr) * 2008-09-23 2010-03-24 Groz-Beckert KG Lisse Jacquard dotée d'une zone d'oeil gaufré
CZ305126B6 (cs) * 2008-11-03 2015-05-13 Technická univerzita v Liberci Nitěnka pro tkací stroj
EP2730687B1 (fr) * 2012-11-08 2015-09-16 Groz-Beckert KG Lisse pour un métier à tisser, notamment un métier à tisser circulaire
US9328435B2 (en) * 2013-11-08 2016-05-03 Deertex, Inc. Functional weaving vamp fabric
TWM493278U (zh) * 2014-10-21 2015-01-11 Deertex Inc 具有透氣耐磨梭織鞋面之鞋類組件

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE387926A (fr) *
US2674275A (en) * 1949-05-06 1954-04-06 Froehlich A G E Heddle frame for looms
CH571085A5 (fr) * 1974-04-09 1975-12-31 Staeubli Ag
CH638572A5 (de) * 1979-07-30 1983-09-30 Grob & Co Ag Webelitze.
US4342399A (en) * 1981-02-17 1982-08-03 The Seven-Up Company Composite bottle
NL8200107A (nl) 1982-01-13 1983-08-01 Louet Beheer Bv Hevel voor een handwerk-weefgetouw.
DE19548176C1 (de) * 1995-12-22 1996-08-14 Schmeing Gmbh & Co Weblitze
BE1010007A3 (nl) * 1996-01-19 1997-11-04 Picanol Nv Weefkader voor weefmachines.
DE10035886A1 (de) * 2000-07-24 2002-02-14 Schmeing Gmbh & Co Weblitze
DE10206130B4 (de) * 2002-02-14 2016-09-01 Groz-Beckert Kg Webschaft mit mindestens einer Weblitze

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004057076A1 *

Also Published As

Publication number Publication date
AU2003289932A1 (en) 2004-07-14
US20060011252A1 (en) 2006-01-19
JP2006510814A (ja) 2006-03-30
CN1729327A (zh) 2006-02-01
EP1573100B1 (fr) 2009-09-30
DE50311980D1 (de) 2009-11-12
WO2004057076A1 (fr) 2004-07-08
US7281548B2 (en) 2007-10-16
DE10260024B4 (de) 2007-03-29
DE10260024A1 (de) 2004-07-15
CZ2005395A3 (cs) 2005-10-12

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