EP3307933B1 - Flechtmaschine - Google Patents

Flechtmaschine Download PDF

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Publication number
EP3307933B1
EP3307933B1 EP16715286.7A EP16715286A EP3307933B1 EP 3307933 B1 EP3307933 B1 EP 3307933B1 EP 16715286 A EP16715286 A EP 16715286A EP 3307933 B1 EP3307933 B1 EP 3307933B1
Authority
EP
European Patent Office
Prior art keywords
braiding
rings
braided
ring
section
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.)
Active
Application number
EP16715286.7A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3307933A1 (de
Inventor
Fabian RITTERSHOFER
Florian Rapp
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of EP3307933A1 publication Critical patent/EP3307933A1/de
Application granted granted Critical
Publication of EP3307933B1 publication Critical patent/EP3307933B1/de
Active legal-status Critical Current
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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
    • 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 braiding machine, in particular round braiding machine, for braiding a continuous continuously or oscillating braided core, with at least two bundles of braided filaments and with a braiding ring arranged between the braided filaments and the emergence point of the braiding threads on the braided core, over the inner surface of which the braided threads are guided become.
  • braiding cores are frequently supplied which have a constant cross-section or a cross-section which changes considerably in the longitudinal direction of the braiding core in order to give the component to be produced its later shape.
  • the braids can in this case remain in the later component or be removed as a lost core again.
  • the braiding threads used may be individual threads or else braiding fibers, for example rovings made of carbon or glass fibers.
  • braided or braided fibers can be produced by braiding around a braid core so-called preforms, which serve the later production of a variety of components made of fiber-reinforced plastics.
  • preforms which serve the later production of a variety of components made of fiber-reinforced plastics.
  • the braiding threads or braiding fibers be laid down as precisely as possible on the braided core.
  • bobbins receive the bobbin threads, which are moved on guide tracks relative to each other so as to form a braid.
  • the clappers have different directions of rotation around the braid core.
  • the guideways are two counter-rotating concentric circular paths, in the center of which - axially offset - the braiding core to be braided moves. It is thus achieved that the braiding threads or braiding fibers of the clapper in the positive direction of rotation continuously cross over with those of the negative direction of rotation, so that a braided core is formed when braiding a braided core.
  • braided cores with complex core geometry are used in the braiding machines, one can not achieve a uniform braid structure with the usually round braided rings with a constant opening cross section.
  • the object of the present invention is to further develop a braiding machine using a rigid braiding ring in such a way that the braided ring opening cross section can be adapted both to the circumference and in the geometric shape to the respective core core cross section.
  • the invention is based on the recognition that the cross section of a braided core can be imaged by at least two rigid braiding rings, even if these two braided rings are positioned so that their opening cross sections at least partially overlap such that the resulting Overlap opening the geometrically closest comes to braiding at the moment to be braided core cross-section.
  • the mesh structure can be kept much more constant or locally influenced.
  • the overlap opening of the at least two braiding rings can be optimally adapted to almost all cross-sectional changes of the braided core and thus optimally guide the braided fibers or braiding fibers.
  • the adaptation of the overlap opening of the braiding rings takes place during the braiding process.
  • each braiding ring is separately adjustable, so that the set of all three braiding rings together opening cross section can be adapted to almost any cross section of the braided core.
  • braided core geometries it may also be useful, in addition to a horizontal and vertical adjustability of the braided rings (x and y axis) also provide a rotation about the z-axis when the. Flechtringe have a deviating from a circular opening cross-section.
  • Fig. 1 a side view of a part of a braid core 1 is shown.
  • the braid core 1 has a longitudinal axis 2 and changing cross-sectional areas, which are not always arranged symmetrically to its longitudinal axis 2. Thus, it has in the peripheral region 3 a symmetrical circumferential cross-sectional enlargement, while in the peripheral region 4 has a one-sided bulge and in the peripheral region 5 has a one-sided depression. This is followed in the peripheral region 6 by a symmetrical constriction, which then increases symmetrically to the peripheral region 7 again.
  • the transitions between the individual areas are continuous, but they can also be jumpy.
  • the transport direction of the braided core is denoted by 8.
  • Fig. 1 Close to the point of emergence of the braiding threads 9 on the circumference of the braid core 1 are in Fig. 1 arranged two braided rings 11 and 12, whose arrangement and adjustment are described below.
  • the two Flechtringe 11, 12 mutually adjusted so that at least a part of its inner peripheral surface is very close to the currently wound surface contour of the braid core 1 and the braiding threads 9 are deflected almost parallel and at a small distance from the surface of the braided core 1 to each other and the braid core contour.
  • Fig. 2 shows a first embodiment of the invention in perspective schematic representation.
  • the two braided rings 11, 12 each have an egg-shaped opening cross section 13.
  • each braided ring 11 and 12 has its own, independently of the other braiding ring controllable drive means.
  • Each drive means allows the associated braiding ring 11 or 12 a horizontal (displacement about the x-axis) and vertical displacement (displacement about the y-axis).
  • the overlapping opening 18 jointly covered by the two braided rings 11, 12 is varied. This overlapping opening 18 corresponds as geometrically as possible to the instantaneous core core cross-section, so that the braiding threads accumulate in the correct position on the circumference of the braided core.
  • linear slide with spindle or belt drive are preferred. It may also be useful in these braided rings 11, 12 with non-circular opening cross-section, the braided rings 11, 12 additionally to twist (adjustment about the z-axis).
  • the two braided rings 11, 12 may be arranged very close to each other, such as Fig. 2 illustrated.
  • the adjustment of the braiding rings 11, 12 takes place during the braiding process so that it is always ensured that the casserole point of the braiding threads 9 is close to the instantaneous circumference of the braid core 1, even if its cross section changes.
  • Fig. 3 differs from the arrangement Fig. 2 in that the braided rings 11 ', 12' each have a slot 19 on their circumference, so that they can be inserted into one another, as it were interleaved.
  • the two braided rings 11 ', 12' for the braiding threads act practically like a single guide. Otherwise, the description of the Fig. 2 made statements here too.
  • FIGS. 4a to 4d Different combinations of two braided rings 11, 12 and 11 ', 12' with an egg-shaped opening cross-section 13 are shown in front views. In the respective overlap opening 18 different cross-sectional shapes of braided cores 1 are located. As can easily be seen, both small and large round cross-sections of braided cores ( 4b, 4c ) with suitable combinations of egg-shaped braiding rings as well as small and larger rectangular braid core cross-sections ( Figure 4a, 4d ). Here, aspect ratios (B / H) of up to 3: 1 can be processed.
  • FIGS. 5a to 5d are shown in front view different combinations of three braided rings 11, 12, 20, each with egg-shaped opening cross-section. Attached and drivable they can according to the arrangement according to Fig. 2 his. Again, it is easy to see that with the three braided rings also an overlap opening 18 are set with very different opening cross-section for different braided core contours can. So can - like the FIGS. 5c shows - even triangular Wickchtkernqueritese be braided with high quality.
  • Flechtringen with an egg-shaped opening cross-section and combinations of Flechtringen 21, 22, 23 can be used with elliptical opening cross-section, as in the front views in the FIGS. 6a to 6d is shown. Again, with very different settings of the three braided rings 21, 22, 23 to each other very different overlap openings 18 realize.
  • FIGS. 7a to 7d each show in front view combinations of three Flechtringen 24, 25, 26 with annular opening cross-sections 13. This also very different overlapping openings 18 can be generated so that even this Flechtringan extract with high filing quality can be adapted to different Wickchtkernqueritese.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)
EP16715286.7A 2015-06-10 2016-04-07 Flechtmaschine Active EP3307933B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015210578.4A DE102015210578A1 (de) 2015-06-10 2015-06-10 Flechtmaschine
PCT/EP2016/057563 WO2016198180A1 (de) 2015-06-10 2016-04-07 Flechtmaschine

Publications (2)

Publication Number Publication Date
EP3307933A1 EP3307933A1 (de) 2018-04-18
EP3307933B1 true EP3307933B1 (de) 2019-02-27

Family

ID=55699631

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16715286.7A Active EP3307933B1 (de) 2015-06-10 2016-04-07 Flechtmaschine

Country Status (6)

Country Link
US (1) US10526732B2 (ja)
EP (1) EP3307933B1 (ja)
JP (1) JP6516869B2 (ja)
CN (1) CN107407023B (ja)
DE (1) DE102015210578A1 (ja)
WO (1) WO2016198180A1 (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015210581A1 (de) * 2015-06-10 2016-12-15 Bayerische Motoren Werke Aktiengesellschaft Flechtmaschine
US11718933B2 (en) * 2021-08-18 2023-08-08 The Boeing Company Penta-axial braiding machine

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1830196A (en) * 1930-03-05 1931-11-03 Ch Faure Roux Ets Braiding machine
US5320696A (en) * 1988-02-02 1994-06-14 E. I. Du Pont De Nemours And Company In-line consolidation of braided structures
US5146835A (en) * 1988-02-02 1992-09-15 E. I. Dupont De Nemours And Company In-line consolidation of braided structures
US4976812A (en) * 1988-02-02 1990-12-11 E. I. Du Pont De Nemours And Company In-line consolidation of braided structures
JPH0643654B2 (ja) * 1990-08-25 1994-06-08 村田機械株式会社 筒型組物構造体の組成方法
US5203249A (en) * 1991-08-30 1993-04-20 United Technologies Corporation Multiple mandrel/braiding ring braider
JPH07122211B2 (ja) * 1991-10-18 1995-12-25 村田機械株式会社 筒型組物構造体の組成方法
US6679152B1 (en) 2000-11-28 2004-01-20 Andrew A. Head Forming ring with adjustable diameter for braid production and method of braid production
DE10115953C2 (de) * 2001-03-30 2003-03-13 Eads Deutschland Gmbh Flechtmaschine
JP4263752B2 (ja) * 2007-08-10 2009-05-13 トヨタ自動車株式会社 繊維強化樹脂部材とその製造方法、および繊維織物の製造装置
DE502008002206D1 (de) 2008-04-07 2011-02-17 Groz Beckert Kg Platinensatz und Platinenaufnahmeeinrichtung zur Plüschherstellung
DE102008052668B4 (de) * 2008-10-22 2011-04-28 Eads Deutschland Gmbh Vorrichtung zum Zuführen einer Verstärkungsfaser zur Bildung einer Verstärkungslage eines Faserhalbzeuges und Vorrichtung zur Herstellung eines Faserhalbzeuges
DE102010021371B4 (de) * 2010-05-25 2015-12-10 Benteler Automobiltechnik Gmbh Flechtvorrichtung
DE102010047193A1 (de) 2010-09-30 2012-04-05 SGL Kümpers GmbH & Co.KG Rundflechtmaschine für das Umflechten eines forlaufend zugeführten Flechtkerns
JP2013216982A (ja) * 2012-04-05 2013-10-24 Bridgestone Corp 編組機
US8671817B1 (en) * 2012-11-28 2014-03-18 Hansen Medical, Inc. Braiding device for catheter having acuately varying pullwires
DE102014202970A1 (de) * 2014-02-18 2015-08-20 Sgl Kümpers Gmbh & Co. Kg Radialflechtmaschine und Flachgeflecht
DE102014216846A1 (de) * 2014-08-25 2016-02-25 Bayerische Motoren Werke Aktiengesellschaft Flechtvorrichtung für das Flechten eines Halbzeugs
DE102015210581A1 (de) * 2015-06-10 2016-12-15 Bayerische Motoren Werke Aktiengesellschaft Flechtmaschine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
US10526732B2 (en) 2020-01-07
JP6516869B2 (ja) 2019-05-22
CN107407023A (zh) 2017-11-28
US20180023229A1 (en) 2018-01-25
DE102015210578A1 (de) 2016-12-15
JP2018517067A (ja) 2018-06-28
CN107407023B (zh) 2019-10-18
EP3307933A1 (de) 2018-04-18
WO2016198180A1 (de) 2016-12-15

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