EP1331293B1 - Herstellungsverfahren eines Schaftstabs für einen Schaftrahmen einer Webmaschine und ein durch dieses Verfahren hergestellter Schaftstab - Google Patents

Herstellungsverfahren eines Schaftstabs für einen Schaftrahmen einer Webmaschine und ein durch dieses Verfahren hergestellter Schaftstab Download PDF

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Publication number
EP1331293B1
EP1331293B1 EP03360003A EP03360003A EP1331293B1 EP 1331293 B1 EP1331293 B1 EP 1331293B1 EP 03360003 A EP03360003 A EP 03360003A EP 03360003 A EP03360003 A EP 03360003A EP 1331293 B1 EP1331293 B1 EP 1331293B1
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EP
European Patent Office
Prior art keywords
support section
slide bar
slat
heddle
template
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
EP03360003A
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English (en)
French (fr)
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EP1331293A1 (de
Inventor
Joseph Scheiwe
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.)
Staubli Faverges SCA
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Staubli Faverges SCA
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Application filed by Staubli Faverges SCA filed Critical Staubli Faverges SCA
Publication of EP1331293A1 publication Critical patent/EP1331293A1/de
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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

Definitions

  • the present invention relates to a method for manufacturing a crossbar for a weaving machine frame as well as a cross member obtained by said method, said crosspiece comprising at least one support profile and a support rod secured to said profile along a junction area.
  • Each stringer frame constitutes a rectangular structure arranged to carry weaving rails.
  • this rectangular structure conventionally comprises an upper cross member formed of a support profile integral with an upper support rod, a lower crossbar formed of a support profile secured to a lower support rod and two lateral uprights assembled at the ends of the sleepers to form said frame.
  • the main purpose of the support profiles is to provide the rigidity that is missing from the support rods and, in known manner, comprise a section greater than that of the support rods.
  • each weaving loom consists of a metal strip provided at its ends with a loop for mounting on the rods-smooth with a game of operation, and in the center of an eyelet for carrying and guiding a wire of chain.
  • weaving webs There are therefore as many weaving webs as warp threads, these weaving webs being distributed, for example one out of two, on two frames of smooth.
  • the stringer frames are set in reciprocating vertical movement by a suitable drive mechanism. For example for a speed of 1200 shots per minute, each smooth frame is animated at a speed of 600 periods per minute. The constant increase in weaving speeds has revealed new mechanical behaviors and technical problems both in the framework of the woven frames and the weaving rails.
  • the support profiles are mainly made of aluminum alloy and the support rods are usually made of stainless steel and attached to the support profiles by means of rivets to obtain a rigid assembly.
  • the use of aluminum alloy support profiles obtained by extrusion or spinning is an interesting solution because it makes it possible to achieve at reasonable costs support profiles of reduced weight with very good straightness.
  • any lack of straightness can be easily corrected by a mechanical dressing operation that is possible thanks to the specific mechanical characteristics of metal alloys.
  • This straightness then makes it possible to use the aluminum support profile as a reference base for fastening it by riveting the smooth support rod by making it rectilinear. Indeed, this smooth support rod is not necessarily linear in the free state because of its low rigidity.
  • the present invention aims at overcoming these disadvantages by proposing a method of manufacturing a crossbar for a weaving machine frame as well as a crossbar obtained by this method, making it possible to produce at a lower cost and without a rebate a cross-bar combining characteristics of lightness and high rigidity, and whose support rod is placed on the support profile in a perfectly linear precise position, this position being controlled and reproducible.
  • the invention relates to a method of manufacture of the kind indicated in the preamble, characterized in that a rigid jig is used comprising at least a first rectilinear groove having a width substantially equal to that of the smooth carrier rod, the guide rod is placed in said groove to make it rectilinear, a bead of glue is deposited in the junction zone, said support profile is positioned in a predetermined and unconstrained manner on said jig and on the carrier rod in crushing said adhesive bead and maintaining the support profile assembly and support rod secured to said template at least during the setting time of said adhesive.
  • the template and the support profile comprise complementary interlocking shapes arranged to accurately position the support profile relative to the smooth support rod.
  • the template comprises a second groove, at least the ends of which are rectilinear and parallel to the first groove, this second groove being arranged to receive said substantially rectangular section of the support profile.
  • the support profile may be non-rectilinear and the second groove of the template may have a width greater than the total width of the rectangular section of the support profile.
  • a number n of templates is advantageously used, each template being superimposed on the previous one after having put in place the support rod, the adhesive bead and the corresponding support profile, and maintains the assembly n support profiles and n support rails smooth solidarity n n superimposed templates at least during the setting time of the glue.
  • the invention also relates to a cross member of the kind indicated in the preamble, characterized in that the support profile is rigid, in that the smooth carrier rod is non-rigid and in that the carrier rod is fixed solidarily to said support profile by gluing in a rectilinear position obtained by means of a template arranged to maintain said smooth-carrying rod relative to said support profile in this rectilinear position at least during the setting time of said glue.
  • the support profile may be a non-rectilinear profile, made of composite materials and obtained by a process selected from the group comprising at least extrusion, pultrusion.
  • This support profile may have a substantially rectangular section extended by a cross section for receiving the smooth-carrying rod. It may also have a substantially rectangular section in which is formed a longitudinal groove for receiving the rod-holder.
  • This smooth support rod may be metallic and have a section selected from the group comprising at least one T-shaped, a J-shaped.
  • the invention relates to a method of manufacturing a crossbar 2, 2 'for a frame of loom 1 of a weaving machine and a crossbar 2, 2' obtained by this method.
  • FIG. 1 An example of a traditional stringer frame 1 for a weaving machine is shown in FIG. 1. It comprises, in known manner, two substantially parallel struts 2 laterally assembled by two uprights 2 ", each strut 2 is formed of a support profile. 3 and a smooth carrier rod 4.
  • the function of the smooth carrier rods 4 is to carry and guide a set of weaving rails 5, only two of which are represented by their ends 50 in the shape of a loop, respecting 1 in the center, each weaving loom 5 carries an eyelet 51 for the passage of a warp 6.
  • These weaving laces 5 are generally made of a hardened metal material, for example stainless steel, for In order to guarantee this operating clearance J over the entire length of the stringer frame 1, the struts 4 must be perfectly linear and parallel to each other. respecting an accuracy of approximately + or - 0.3 mm.
  • the support profile 3 comprises a substantially rectangular section 30 extended by a straight section 31 adapted to receive on the smooth support rod 4 along a junction zone 40 formed of a flat surface .
  • This smooth support rod 4 may have a coated T section 4a or J 4b according to the shape of the loops 50 of the weaving rails 5.
  • FIGS. 5A and 5B illustrate an alternative embodiment of a cross member 2 ', in which the support profile 3' has a substantially rectangular section 30 in which is formed a longitudinal groove 33 able to receive the smooth support rod 4 'on the along a junction area 40 'formed of at least two parallel flat surfaces.
  • the longitudinal groove 33 may be oriented parallel to the plane of the support profile 3 ', according to the example shown, or perpendicular to the shape of the smooth support rod 4'.
  • This smooth support rod 4 ' may have a prolonged T-section coated with a connecting tab 4'a, inverted J 4b or inverted T 4'c depending on the shape of the loops 50 of the weaving rails 5.
  • the substantially rectangular section 30 of the support profile 3,3 ' has a central recess 32 which has the advantage of reducing its mass and material cost.
  • This support profile 3, 3 ' may have other sections for example in I.
  • the jig 7 and the support profile 3, 3 ' comprise complementary interlocking shapes allowing the precise positioning of the support profile 3, 3' with respect to the smooth support rod 4, 4 '.
  • the template 7 comprises a second groove 71, at least the ends of which are rectilinear and parallel to the first groove 70.
  • This second groove 71 has a width greater than the total width of the substantially rectangular section 30 of the support profile. 3, 3 '.
  • the complementary interlocking forms are constituted by the positioning members 9 and the ends of the second groove 71. It is of course possible to provide other equivalent forms.
  • positioning members 9 are constituted with reference to FIG. 3C of a T-shaped plate 90, the leg of the T forming a male part able to fit into the central recess 32 of the support profile 3, 3 ' and the T bar having a width equal to that of the ends of the groove 71 of the template 7.
  • the manufacturing method then comprises a step in which positioning members 9 are placed in the ends of the support profile 3,3 '( see Fig. 3C) before placing said support profile 3, 3 'in the jig 7.
  • the templates 7 have a wider rear part. that their front part respectively forming a female interlocking zone 72 and a male interlocking zone 73.
  • the rear part comprises two longitudinal flanges 74 delimiting the female interlocking zone 72, the interval between these two longitudinal flanges 74 corresponding to the width of the male interlocking area 73.
  • This manufacturing method therefore makes it possible to produce a crossmember 2, 2 'in which the smooth support rod 4, 4' is fixed integrally to the support profile 3, 3 'by gluing in a rectilinear position obtained by means of the jig 7 arranged for maintain this smooth rod 4, 4 'relative to the support profile 3, 3' in this position at least during the setting time of the glue.
  • This manufacturing method is particularly advantageous when using a support profile 3, 3 'which is made of a rigid material but which does not necessarily have a rectilinear geometry and a smooth support rod 4, 4' which does not It does not necessarily have a rectilinear geometry in the free state but which is made in a non-rigid material allowing straightening.
  • This difference of rigidity is obtained by the choice of the materials but also by the differences of section, the section of the rail-smooth 4, 4 'being significantly lower than that of the support profile 3, 3'.
  • this smooth support rod 4, 4 ' which constitutes the functional part of the crossbar 2, 2', is fixed in a rectilinear position imposed by the template 7.
  • the support profile 3, 3 ' is then assembled to this smooth support rod 4, 4' without undergoing significant deformation in the plane of said profile.
  • the support rod 4, 4' restete in its rectilinear position given the large difference in rigidity between the support profile 3, 3' and the smooth rod 4, 4 '. Indeed, if the smooth support rod 4,4 'tends to return to its original shape, the support profile 3, 3' being much more rigid, opposes any deformation and freezes the smooth rod 4, 4 'in the position imposed by the template 7.
  • This manufacturing method is therefore particularly suitable for support profiles 3, 3 'made of composite materials and obtained by a continuous process such as extrusion or pultrusion.
  • These composite materials are, for example, thermoset resins based on carbon fibers, glass or other fibers. They have the advantage of giving the support profile 3, 3 'a very high rigidity increasing its mechanical resistance to fatigue while significantly reducing its weight.
  • the lack of straightness related to the use of these composite materials is no longer a drawback thanks to the combination of the template 7 and the positioning members 9 or any other equivalent means.
  • this manufacturing method can also be advantageous for support profiles 3, 3 'made in the traditional manner of aluminum alloy in order to eliminate the prior straightening step. In this case, the bonding may be replaced by riveting or any equivalent means.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Moulding By Coating Moulds (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
  • Golf Clubs (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Springs (AREA)

Claims (15)

  1. Verfahren zur Herstellung einer Traverse (2, 2') für einen Schaftrahmen (1') einer Webmaschine, wobei die Traverse (2, 2') mindestens ein Trägerprofil (3, 3') und mindestens eine Helfentragleiste (4, 4') umfasst, die fest mit dem Trägerprofil (3, 3') längs einer Verbindungszone (40, 40') verbunden ist, dadurch gekennzeichnet, dass man eine starre Schablone (7) verwendet, die mindestens eine erste geradlinige Nut (70) mit einer Breite im wesentlichen gleich der der Helfentragleiste (4, 4') umfasst, man die Helfentragleiste (4, 4') in der Nut (70) anordnet, um sie geradlinig zu machen, man eine Klebstoffraupe in die Verbindungszone (40, 40') ablegt, man in einer vorbestimmten Weise und ohne Spannung das Trägerprofil (3, 3') auf die Schablone (7) und die Helfentragleiste (4, 4') positioniert, wobei die Klebstoffraupe zerdrückt wird und man die Anordnung Trägerprofil (3, 3') und Helfentragleiste (4, 4') mindestens während der Abbindezeit des Klebstoffs mit der Schablone (7) verbunden hält.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Schablone (7) und das Trägerprofil (3, 3') komplementäre Eingriffsformen umfassen, die ausgebildet sind, um mit Genauigkeit das Trägerprofil (3, 3') in Bezug auf die Helfentragleiste (4, 4') zu positionieren.
  3. Verfahren nach Anspruch 2, dadurch gekennzeichnet, dass das Trägerprofil (3, 3') mindestens einen im wesentlichen rechteckigen Querschnitt (30) aufweist, dass die Schablone (7) eine zweite Nut (71) umfasst, von der mindestens die Enden geradlinig und parallel zu der ersten Nut (70) sind, wobei die zweite Nut (71) ausgebildet ist, um den im wesentlichen rechteckigen Abschnitt (30) des Trägerprofils (3, 3') aufzunehmen.
  4. Verfahren nach Anspruch 3, dadurch gekennzeichnet, dass das Trägerprofil (3, 3') nicht geradlinig ist, wobei die zweite Nut (71) der Schablone (7) eine Breite aufweist, die größer als die Gesamtbreite des im wesentlichen rechteckigen Abschnitts (30) des Trägerprofils (3, 3') ist, dass man Positionierelemente (9) verwendet, die ausgebildet sind, um an den Enden des Trägerprofils (3, 3') befestigt zu werden, wobei diese Positionierelemente (9) eine Breite aufweisen, die im wesentlichen gleich der der Enden der zweiten Nut (71) ist.
  5. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass man zur Herstellung einer Anzahl n von Traversen (2, 2') eine Anzahl n von Schablonen (7) verwendet, wobei jede Schablone (7) auf die vorherige gelegt wird, nachdem jeweils die entsprechende Helfentragleiste (4, 4'), die entsprechende Klebstoffraupe und das entsprechende Trägerprofil (3, 3') in Stellung gebracht wurden und dass man die Anordnung aus n Trägerprofilen (3, 3') und n Helfentragleisten (4, 4'), die mit den n übereinander liegenden Schablonen (7) verbunden sind, mindestens während der Abbindezeit des Klebstoffs zusammen hält.
  6. Traverse (2, 2') für einen Schaftrahmen (1) einer Webmaschine, die durch das Herstellungsverfahren nach Anspruch 1 erhalten wird, wobei die Traverse (2, 2') mindestens ein Trägerprofil (3, 3') und mindestens eine Helfentragleiste (4, 4') umfasst, die fest mit dem Trägerprofil (3, 3') längs einer Verbindungszone (40, 40') verbunden ist, dadurch gekennzeichnet, dass das Trägerprofil (3, 3') starr ist, dass die Helfentragleiste (4, 4') nicht starr ist und dass die Helfentragleiste (4, 4') fest mit dem Trägerprofil (3, 3') durch Klebung in einer geradlinigen Stellung verbunden ist, die mittels einer Schablone (7) erhalten wird, die ausgebildet ist, um die Helfentragleiste (4, 4') in Bezug auf das Trägerprofil (3, 3') in dieser geradlinigen Stellung mindestens während der Abbindezeit des Klebstoffs zu halten.
  7. Traverse nach Anspruch 6, dadurch gekennzeichnet, dass das Trägerprofil (3, 3') ein nicht geradliniges Profil ist.
  8. Traverse nach Anspruch 7, dadurch gekennzeichnet, dass das Trägerprofil (3, 3') aus Verbundmaterialien hergestellt ist.
  9. Traverse nach Anspruch 8, dadurch gekennzeichnet, dass das Trägerprofil (3, 3') durch ein Verfahren erhalten wird, das aus der Gruppe ausgewählt ist, die mindestens die Extrusion, die Pultrusion umfasst.
  10. Traverse nach Anspruch 6, dadurch gekennzeichnet, dass das Trägerprofil (3) einen im wesentlichen rechteckigen Abschnitt aufweist, der sich durch einen im wesentlichen geraden, zur Aufnahme der Helfentragleiste (4) dienenden Abschnitt (31) verlängert.
  11. Traverse nach Anspruch 6, dadurch gekennzeichnet, dass das Trägerprofil (3') einen im wesentlichen rechteckigen Abschnitt (30) aufweist, und eine zur Aufnahme der Helfentragleiste (4') dienende Längsnut (33) umfasst.
  12. Traverse nach Anspruch 6, dadurch gekennzeichnet, dass die Helfentragleiste (4, 4') metallisch ist.
  13. Traverse nach Anspruch 6, dadurch gekennzeichnet, dass die Helfentragleiste (4, 4') einen Querschnitt aufweist, der aus der Gruppe ausgewählt ist, die mindestens eine T-Form, eine J-Form umfasst.
  14. Schablone für die Herstellung einer Traverse(2, 2') nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, dass sie umfasst:
    - mindestens eine erste geradlinige Nut (70), die eine Breite im wesentlichen gleich der der Helfentragleiste (4, 4') der Traverse aufweist und in der die Leiste platziert werden kann,
    - eine zweite Nut (71) zur Aufnahme des rechteckigen Abschnittes (30) des Trägerprofils (3, 3').
  15. Schablone nach Anspruch 14, dadurch dass sie eine weibliche Eingreifzone (72) und eine männliche Eingreifzone (74) bei identischen Schablonen für ihre Übereinanderanordnung umfasst.
EP03360003A 2002-01-25 2003-01-10 Herstellungsverfahren eines Schaftstabs für einen Schaftrahmen einer Webmaschine und ein durch dieses Verfahren hergestellter Schaftstab Expired - Lifetime EP1331293B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0200961 2002-01-25
FR0200961A FR2835264B1 (fr) 2002-01-25 2002-01-25 Procede de fabrication d'une traversee pour cadre de lisse de machine a tisser et traverse obtenue par ledit procede

Publications (2)

Publication Number Publication Date
EP1331293A1 EP1331293A1 (de) 2003-07-30
EP1331293B1 true EP1331293B1 (de) 2006-03-22

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EP03360003A Expired - Lifetime EP1331293B1 (de) 2002-01-25 2003-01-10 Herstellungsverfahren eines Schaftstabs für einen Schaftrahmen einer Webmaschine und ein durch dieses Verfahren hergestellter Schaftstab

Country Status (6)

Country Link
US (1) US6926042B2 (de)
EP (1) EP1331293B1 (de)
CN (1) CN1324180C (de)
AT (1) ATE321160T1 (de)
DE (2) DE03360003T1 (de)
FR (1) FR2835264B1 (de)

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DE10319959B4 (de) * 2003-05-02 2007-02-01 Groz-Beckert Kg Webschaft für eine Webmaschine
DE102004059319A1 (de) * 2004-12-02 2006-06-08 Picanol N.V. Webschaft
DE102005029699B3 (de) * 2005-06-24 2007-02-08 Groz-Beckert Kg Webschaft
DE102005029700B3 (de) * 2005-06-24 2006-10-12 Groz-Beckert Kg Seitenstütze für einen Webschaft
DE602005018660D1 (de) * 2005-11-23 2010-02-11 First Spa Schaftstab für einen Webschaftrahmen einer Webmaschine, mit verbesserter Befestigung der Litzentragschiene
BE1017334A3 (nl) * 2006-10-05 2008-06-03 Picanol Nv Weefkader met versterkingsprofiel voor een weefmachine.
WO2016004610A1 (zh) * 2014-07-10 2016-01-14 姚红丽 改进型纺织织机
CN112935845A (zh) * 2021-02-03 2021-06-11 上海拓璞数控科技股份有限公司 龙门式多轴加工中心的复合材料框架结构及加工中心
CN113737351A (zh) * 2021-10-14 2021-12-03 西安康本材料有限公司 一种pan纤维打纬装置

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JPH0841750A (ja) * 1994-07-29 1996-02-13 Mic Kogyo Kk 綜絖枠の案内板
JPH08325884A (ja) * 1995-05-29 1996-12-10 Nitto Denko Corp ヘルドフレ−ム用横梁材

Also Published As

Publication number Publication date
CN1441101A (zh) 2003-09-10
FR2835264A1 (fr) 2003-08-01
CN1324180C (zh) 2007-07-04
ATE321160T1 (de) 2006-04-15
US6926042B2 (en) 2005-08-09
DE03360003T1 (de) 2004-04-15
EP1331293A1 (de) 2003-07-30
DE60304145T2 (de) 2006-12-21
DE60304145D1 (de) 2006-05-11
FR2835264B1 (fr) 2004-05-21
US20030140981A1 (en) 2003-07-31

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