EP3161197B1 - Dispositif de pression servant à presser un flexible tressé sur une partie centrale d'élément et tresseuse - Google Patents

Dispositif de pression servant à presser un flexible tressé sur une partie centrale d'élément et tresseuse Download PDF

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Publication number
EP3161197B1
EP3161197B1 EP15731519.3A EP15731519A EP3161197B1 EP 3161197 B1 EP3161197 B1 EP 3161197B1 EP 15731519 A EP15731519 A EP 15731519A EP 3161197 B1 EP3161197 B1 EP 3161197B1
Authority
EP
European Patent Office
Prior art keywords
pressing device
pressing
spherical plain
core
braiding machine
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.)
Not-in-force
Application number
EP15731519.3A
Other languages
German (de)
English (en)
Other versions
EP3161197A1 (fr
Inventor
Frieder Heieck
Florian Gnädiger
Jochen Baumann
Holger Ahlborn
Andreas Konzmann
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.)
Universitaet Stuttgart
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Universitaet Stuttgart
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Publication date
Application filed by Universitaet Stuttgart filed Critical Universitaet Stuttgart
Publication of EP3161197A1 publication Critical patent/EP3161197A1/fr
Application granted granted Critical
Publication of EP3161197B1 publication Critical patent/EP3161197B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04C—BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE
    • D04C3/00—Braiding or lacing machines
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04C—BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE
    • D04C3/00—Braiding or lacing machines
    • D04C3/40—Braiding or lacing machines for making tubular braids by circulating strand supplies around braiding centre at equal distances
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04C—BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE
    • D04C3/00—Braiding or lacing machines
    • D04C3/48—Auxiliary devices

Definitions

  • the invention relates to a pressing device for pressing a braided hose onto a component core extending along a core axis, with at least one pressure roller, which acts on the braided hose against the component core during operation of the device.
  • the invention also relates to an associated braiding machine.
  • Such Anpress wornen and associated braiding machines are for example from the JP 2000-178862 previously known.
  • pressure rollers use whose longitudinal axes extend parallel to the core axis, wherein the individual pressure rollers are connected to each other via a base so that they can be moved to rotate around the core.
  • Such pressing devices have a comparatively complicated mechanism.
  • braided tubes which do not have a circular cross-section, can only be pressed to a limited extent against a corresponding component core.
  • braided sleeving can not be satisfactorily pressed against component cores that extend along a transverse axis of the core Kerns curved line (eg pipes with kinks) and in particular have relatively small radii of curvature.
  • braiding of the braid may occur from the core in the braiding process. This leads to the fact that the braided hose is not applied to the core and thus wrinkles form during further processing (resin injection by injection or infiltration), which significantly deteriorate the component quality or make further processing impossible. This effect is all the more pronounced, the farther the deflection point of the braid is removed from the braid plane in the core withdrawal direction from the core surface.
  • the invention has the object to provide a pressing device, which helps to remedy the disadvantages mentioned.
  • the pressing device provides in particular that the pressure roller is mounted by means of two spaced-apart spherical bearings, wherein the spherical plain bearings relative to each other, in particular transversely to the axis of rotation of the roller, are displaceable.
  • the displacement takes place in such a way that the pressure roller changes its relative position to the core axis.
  • the displacement may preferably take place in a storage plane and have a directional component which is not located in the axis of rotation of the respective pressure roller.
  • two pressure rollers may be provided, which are in particular in a common storage level, in which case at least one of the spherical plain bearings is displaceable.
  • the storage level can not only run through the preferably two pressure rollers, but also preferably be aligned perpendicular to the core axis, perpendicular to the direction of movement of the braided hose and / or parallel to a median plane of the pressing device or an associated braiding machine.
  • the pressure rollers are not rotationally driven but only rotatably mounted. It can due to the pressing device does not come to an unwanted drape of the mesh.
  • the at least one pressure roller can roll due to their orientation transversely to the direction of movement of the braided tube upon movement of the braided tube on the braided tube.
  • the pressure roller can be optimally aligned with the braided hose or the component core, in particular, even if the component cores extend along a curved line and have relatively small radii of curvature.
  • braided tubes can be realized, which have a substantially rectangular basic shape. The respective pressure roller can then press the entire surface of the braided hose facing it to the component core.
  • the pressure rollers are not parallel to the longitudinal axis of the core, but transverse to the core axis. Overall, a relative movement between the braid and the respective roller in the direction of movement of the braid can thereby be avoided. It is possible to unroll the pressure rollers without transverse and / or shear forces on the braided hose.
  • the at least one spherical plain bearing and preferably when all joint bearings are mounted in particular orthogonal to the core axis floating.
  • the floating bearing in particular axial direction serves in particular to compensate for the difference in length between the horizontal and inclined position of the rollers.
  • the resilience of the rollers is ensured by the separate and rotational bearing at both ends of the shaft by means of the joint bearings, which may be formed as a ball joint.
  • the floating bearing could therefore be replaced by another arrangement that allows adjustment of the length in the axial direction of the shaft, for example via mutually displaceable elements (keyword "telescopic rod") or springs.
  • adjusting means for adjusting the spherical plain bearings are advantageously provided.
  • biasing means are provided for acting on the at least one spherical bearing such that the respective pressure roller acts by means of a biasing force against the component core.
  • the biasing means are advantageously designed so that they cause a uniform contact pressure of the braid tube to the core, even if the core should have different cross-sections over the longitudinal extent.
  • the biasing means and / or the adjusting means may be formed as acting on the spherical plain bearings pneumatic pressure cylinder.
  • Such pressure cylinders are relatively easy to implement and can provide a constant pressure rate.
  • both joint bearings of a pressure roller are independently adjustable. This can be done an optimal adjustment of the rollers to the component core.
  • the spherical plain bearings are arranged adjustable on parallel to each other arranged guide means.
  • Rods or rails which are preferably arranged in the bearing plane or parallel thereto, come into consideration as guide means.
  • the respective pressure roller aligned even at a different angle of 90 ° to the guide means become.
  • the two pressure rollers can be arranged to extend parallel to each other in a basic position or in a displaced position along two axes having an intersection.
  • an optimal alignment of the pressure rollers can be achieved here depending on the geometry and in particular curvature of the component core for optimal and uniform contact pressure of the braid to the core. This is particularly important because, for example, in robotic braiding, perfect alignment of the core with respect to the braiding ring can not be ensured; a skewing possibility of the rollers can compensate for this inaccuracy.
  • the at least one pressure roller and preferably all pressure rollers are arranged such that they form abutment for stabilizing and / or supporting the component core.
  • the at least one pressure roller and preferably all pressure rollers are arranged such that they form abutment for stabilizing and / or supporting the component core.
  • the pressing device can have a support structure which can be arranged on a braiding machine, so that the pressing device can be arranged within a braiding machine immediately after the braiding process.
  • a pressing device has the advantage that it can be arranged as a retrofit kit to an existing braiding machine.
  • the support structure may in particular be attached to a braiding ring provided on the braiding machine or to a braided ring holder.
  • the support structure may be formed as a frame which forms the bearing plane or on which the pressure rollers are arranged adjustably in the bearing plane.
  • an abovementioned pressing device is provided as part of a braiding machine, in particular a radial braiding machine, a horizontal braiding machine or a 3D braiding machine, so that ultimately the braiding machine comprises a pressing device according to the invention.
  • the two pressure rollers 12 clamp a bearing plane 27, within which, as will be explained below, the individual pressure rollers 12 can be adjusted.
  • the bearing plane 27 extends in particular parallel to the plane formed by the braided ring 20 level 29.
  • the bearing plane 27 is perpendicular to the central longitudinal axis 17 of the component core 16 and to the direction of movement 26 of the core 16th
  • the two pressure rollers 12 are provided between provided at the free ends of the pressure rollers 12 pivot bearings 28.
  • the pressure rollers 12 have a about the longitudinal axis 30 of the rollers 12 extending roller body 32, which are arranged by means of rotary bearings 34 on a central body 36.
  • the rod-shaped central body 36 is mounted with its free ends 48 via receiving elements 38 in housing bodies 40 of the joint bearing 28. Due to the provision of the elastically flexible receiving elements 38, the two joint bearings 28 can be moved independently along the lines 42 parallel.
  • the free ends 48 of the central body 36 are at least partially axially displaceable within the receiving elements 38, so that a change in the distance of the joint bearings 28, which occurs when the joint bearings 28 are moved in the opposite direction, can be compensated.
  • Spacers 49 are provided between the pivot bearings 28 and the pivot bearings 34.
  • FIG. 2 For parallel displacement of the joint bearing 28, these are adjustable by means of guide bodies 44 to guide means in the form of guide rods 46.
  • the guide bodies 44 are fixedly arranged on the hinge bearings 28.
  • By adjusting the guide body 44 and the pivot bearing 28 along the guide rods 46 can consequently, as in FIG. 2 shown an adaptation of the pressure rollers 12 to a surface of the core 16, the in FIG. 2 is square, can be achieved.
  • the guide rods 46 on the in FIG. 3 shown receiving elements 38 in the frame 24.
  • a base plate 54 is provided on the frame 24, which has a central opening 56 through which ultimately the core 16 engages.
  • the frame 24 is preferably also within the bearing plane 27 or is arranged parallel thereto.
  • FIG. 1 For adjusting the joint bearing 28 along the guide rods 46 and within the storage level 27, are in FIG. 1 shown pneumatic actuating cylinder 60 is provided. Between the adjusting cylinders 60 and the rotary joints 28 coupling elements 62 are provided, which transmit the stroke of the adjusting cylinder 60 to the joint bearings 28. In the FIG. 2 are the actuating cylinder 60 and the coupling elements 62 which engage the hinge bearings 28, not shown.
  • pneumatic adjusting cylinders 60 has the advantage that the pressure rollers 12 can be acted upon with a substantially constant contact pressure and yet elastically yielding against the core 16. In particular, with changes in cross section of the core 16 axial compliance can be realized with a largely constant contact force. In addition, the contact pressure of the rollers 12 can be adjusted against the component core 16 via changes in the pressure in the actuating cylinder 60.
  • this can be an entangled arrangement of the rollers 12, as in FIG. 2 is shown achieved.
  • the longitudinal axes 30 of the rollers 12 can thus be either parallel to each other or as in FIG. 2 is shown to be set in a cutting manner.
  • this allows an optimal adaptation to the core 16, wherein the mesh 18 and the finished tube 14 can be optimally pressed immediately after the braiding to the core 16. Since the rollers 12 extend transversely to the direction of movement 26, no transverse or shear forces act on the mesh 18. Overall, this can be a defect-free Tube braid result, which has favorable properties for further processing.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)

Claims (13)

  1. Dispositif de pression (10) servant à presser un flexible tressé (14) sur une partie centrale d'élément (16) s'étendant le long d'un axe de partie centrale (17), comprenant des cylindres presseurs (12) qui, lors du fonctionnement du dispositif (10), pressent le flexible tressé (14) contre la partie centrale d'élément (16), au moins un cylindre presseur (12) s'étendant transversalement à l'axe de partie centrale (17) étant prévu, caractérisé en ce que le cylindre presseur (12) est monté en rotation au moyen de deux paliers à rotule (28) espacés l'un de l'autre, de sorte que, pour le déplacement du cylindre presseur (12), les paliers à rotule (28) du cylindre presseur (12) peuvent coulisser parallèlement l'un à l'autre.
  2. Dispositif de pression (10) selon la revendication 1, caractérisé en ce que les paliers à rotule (28) sont montés flottants.
  3. Dispositif de pression (10) selon la revendication 1 ou 2, caractérisé en ce que les moyens de déplacement (60, 62) servent à déplacer au moins un palier à rotule (28).
  4. Dispositif de pression (10) selon la revendication 3, caractérisé en ce que les moyens de déplacement (60, 62) sont réalisés sous la forme de cylindres de pression pneumatiques agissant sur les paliers à rotule.
  5. Dispositif de pression (10) selon l'une quelconque des revendications précédentes, caractérisé en ce que des moyens de précontrainte (60, 62) servant à solliciter au moins un palier à rotule (28) sont prévus, de telle manière que le cylindre presseur (12) agit contre la partie centrale d'élément (16) au moyen d'une force de précontrainte.
  6. Dispositif de pression (10) selon la revendication 5, caractérisé en ce que les moyens de précontrainte sont réalisés sous la forme de cylindres de pression pneumatiques agissant sur les paliers à rotule.
  7. Dispositif de pression (10) selon l'une quelconque des revendications précédentes, caractérisé en ce que les deux paliers à rotule (28) sont agencés de manière à pouvoir se déplacer indépendamment l'un de l'autre.
  8. Dispositif de pression (10) selon l'une quelconque des revendications précédentes, caractérisé en ce que les deux paliers à rotule (28) agissent contre la partie centrale d'élément avec une précontrainte différente.
  9. Dispositif de pression (10) selon l'une quelconque des revendications précédentes, caractérisé en ce que les paliers à rotule (28) sont agencés de manière à pouvoir se déplacer sur des moyens de guidage (46) agencés de manière à s'étendre parallèlement les uns aux autres.
  10. Dispositif de pression (10) selon l'une quelconque des revendications précédentes, caractérisé en ce que deux cylindres presseurs (12) s'étendant transversalement à l'axe de partie centrale (17) sont prévus, qui se situent dans un plan de palier (27), deux moyens de guidage (46) agencés de manière à s'étendre parallèlement l'un à l'autre étant prévus et respectivement un palier à rotule (28) d'un cylindre presseur (12) étant agencé de manière à pouvoir se déplacer sur un moyen de guidage (46).
  11. Dispositif de pression (10) selon l'une quelconque des revendications précédentes, caractérisé en ce que le ou les cylindres presseurs (12) et de préférence tous les cylindres presseurs (12) sont agencés de manière à former des paliers complémentaires servant à stabiliser et/ou à soutenir la partie centrale d'élément (16).
  12. Dispositif de pression (10) selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif presseur (10) comprend une structure de support (24) pouvant être agencée sur une machine à tresser, de telle manière que le dispositif de pression (10) peut être agencé à l'intérieur d'une machine à tresser immédiatement après le processus de tressage.
  13. Machine à tresser, en particulier machine à tresser radiale, machine à tresser horizontale ou machine à tresser en 3D, comprenant un dispositif de pression (10) selon l'une quelconque des revendications précédentes.
EP15731519.3A 2014-06-24 2015-05-07 Dispositif de pression servant à presser un flexible tressé sur une partie centrale d'élément et tresseuse Not-in-force EP3161197B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014212063.2A DE102014212063A1 (de) 2014-06-24 2014-06-24 Anpresseinrichtung zum Anpressen eines Geflechtschlauches an einen Bauteilkern und Flechtmaschine
PCT/EP2015/060042 WO2015197242A1 (fr) 2014-06-24 2015-05-07 Dispositif de pression servant à presser un flexible tressé sur une partie centrale d'élément et tresseuse

Publications (2)

Publication Number Publication Date
EP3161197A1 EP3161197A1 (fr) 2017-05-03
EP3161197B1 true EP3161197B1 (fr) 2018-03-28

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ID=53488288

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15731519.3A Not-in-force EP3161197B1 (fr) 2014-06-24 2015-05-07 Dispositif de pression servant à presser un flexible tressé sur une partie centrale d'élément et tresseuse

Country Status (3)

Country Link
EP (1) EP3161197B1 (fr)
DE (1) DE102014212063A1 (fr)
WO (1) WO2015197242A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107488938A (zh) * 2017-09-05 2017-12-19 芜湖品度电子科技有限公司 用于编织机的压平装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4690850A (en) * 1986-06-06 1987-09-01 K-2 Corporation Fiber reinforced braided ski core and method and apparatus for making same
EP0902114B1 (fr) * 1997-09-09 2003-03-26 Murata Kikai Kabushiki Kaisha Guide pour stabiliser la formation de tressage dans un métier à tresser
JP3252901B2 (ja) 1998-12-16 2002-02-04 村田機械株式会社 型締め装置付きブレイダー
US7793576B2 (en) * 2007-01-22 2010-09-14 A&P Technology, Inc. Braided reinforcement for aircraft fuselage frames and method of producing the same
DE102010047193A1 (de) * 2010-09-30 2012-04-05 SGL Kümpers GmbH & Co.KG Rundflechtmaschine für das Umflechten eines forlaufend zugeführten Flechtkerns

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WO2015197242A1 (fr) 2015-12-30
EP3161197A1 (fr) 2017-05-03
DE102014212063A1 (de) 2015-12-24

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