EP3307934A1 - Braiding machine - Google Patents
Braiding machineInfo
- Publication number
- EP3307934A1 EP3307934A1 EP16711201.0A EP16711201A EP3307934A1 EP 3307934 A1 EP3307934 A1 EP 3307934A1 EP 16711201 A EP16711201 A EP 16711201A EP 3307934 A1 EP3307934 A1 EP 3307934A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- braiding
- segments
- segment
- braided
- 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.)
- Granted
Links
- 238000009954 braiding Methods 0.000 title claims abstract description 84
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 239000000835 fiber Substances 0.000 description 7
- 230000002093 peripheral effect Effects 0.000 description 6
- 238000011161 development Methods 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000011151 fibre-reinforced plastic Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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
- D04C3/48—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 twines and with a braided core arranged between the braided filaments and the emergence point of the braiding threads on the braiding core, over the inner surface of which the braided threads are guided be and which consists of several adjustable segments, each adjustable segment of the braiding ring has its own adjusting device.
- 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 guideways relative to each other so that a mesh ent
- 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 braid core to be braided moves.
- braided cores with complex core geometry are used in the braiding machines, it is not possible to achieve a uniform braiding structure with the usually round braided rings having a constant opening cross section.
- DE 10 2010 047 193 A1 describes a round braiding machine which has a braiding ring of four angled segments, all of which can be displaced simultaneously by the same traverse path radially in the direction of the braided core or away from it.
- the individual segments overlap at their free ends.
- the adjusting devices engage in their angled region.
- This arrangement has the disadvantage that the individual segments of the braiding ring can only follow cross-sectional changes of the braided core, if these run symmetrically to the longitudinal axis of the braiding ring. Local bulges or
- Indentations of the braided core can not be followed so that the quality of the braid suffers. Likewise, no braids with very different side lengths can be braided with sufficient quality.
- the object of the present invention is to develop a braiding ring, which consists of individual segments, in such a way that even complex braided core geometries can be braided with high quality.
- each segment of the braiding ring can be adjusted individually by an arbitrary amount
- B / H 3/1
- oval Wickchtkernquer4.000en or sudden and / or one-sided cross-sectional changes in Wicker core cross-section, etc. are optimally adapted and thus optimally guide the braiding threads or braiding fibers.
- the free distance between the inner surface of the braiding ring and the casserole point can always be kept very low.
- the braiding structure over the length of a wicker core is complemented with xer geometry much more constant or can be specifically influenced locally by the fact that the adaptation of the braiding ring shape during the braiding process
- the six segments form the shape of a hexagon. So that no gap arises between the individual segments, two successive segments are arranged in different planes. Thus, three segments are arranged in a first and the other three segments in a second plane parallel to the first plane.
- the segments are rotatably mounted according to claim 3 at its one end, wherein the other free end overlaps the articulation point of the subsequent segment. This ensures in conjunction with the embodiment according to claim 2 that no gap can form between the segments, which can lead to damage of the braiding threads or to a fault in the braid.
- the segments may be straight, or bent according to claim 4 executed with the same or different radii of curvature.
- the development of the invention according to claim 5 describes a space-saving construction of the attachment of each adjusting device to its associated segment. Through the longitudinal groove also the mass of the segments is reduced, so that a quick and energy-saving adjustment is possible. So that the adjusting device can be held without additional fastening means in the longitudinal groove, the longitudinal groove according to claim 6 has a retracted edge region, so that the adjusting device can not be released from the longitudinal groove upwards.
- the claims 7 and 8 describe two alternative adjusting devices. In this case, it makes sense to arrange respective opposing segments of the adjusting devices on a common line of action, regardless of their design.
- all segments can be arranged on one side of the retaining ring.
- FIG. 1 shows a schematic side view of a braided core with rising braiding threads
- Fig. 2 is a schematic plan view of the braiding ring according to the invention in a first position
- FIG. 3 shows a schematic top view of the braiding ring according to the invention in a second position
- FIG. 4a is a plan view of an embodiment of the invention Flechtringes
- FIG. 4b shows a perspective view of the braiding ring according to FIG. 4a;
- Fig. 5 is a perspective view of a portion of a segment with
- Fig. 1 is a side view of a portion 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 stepped.
- the transport direction of the braided core 1 is denoted by 8.
- braid core 1 usually run a variety of braiding or braiding fibers 9 and possibly also in addition standing or 0 ° threads (not shown).
- braiding or braiding fibers 9 are shown by way of illustration. These are subtracted from braided filament coils, not shown. They are deflected in this example by the inner circumference of a first braiding ring 0.
- This braiding ring 10 has a constant invariable diameter, which is greater than the largest diameter of the braid core. 1 Depending on the arrangement of the bobbin thread can be dispensed with this first braiding ring 10 also.
- a braiding ring 11 is arranged near the casserole on the braid core 1. It deflects the braiding threads 9 tangentially to the surface of the braided core 1.
- the braiding ring 11 is located in the immediate vicinity of the surface of the braided core 1. Due to the changing cross-sectional area of the braided core 1, it must be adjustable in its diameter.
- FIG. 2 shows schematically in a front view the braid 11 according to the invention in its construction. It consists of six segments 11 a to 11 f, which form the sides of a hexagon. Each segment 11 a to 11 f has a constant or varying radius of curvature. Instead of curved segments 1 1 a to 11 f also straight segments can be used.
- Each segment 11 a to 11 f is rotatably mounted at one end 12 about a pivot point 13. So that the individual segments 11 a to 11 f can form an opening with a closed inner border in plan view, they are each arranged alternately in two parallel planes, as will be shown below. The end of each segment overlaps the beginning of the subsequent segment. In other words, the segment 11 a lies in the front plane and ends behind the articulation point 13 of the segment 11 b, the segment 1 b lies in the rear plane and ends after the articulation point 13 of the segment 11 c, which in turn lies in the front plane ,
- Each segment 11 a to 1 c is pivoted by its own adjusting device 14, which can be actuated separately.
- Each adjusting device 14 preferably consists of an electromechanical, but also a pneumatic or hydraulic spindle drive, which can be controlled by its own, suitable control device. The free end of the spindle engages the associated segment, as will be shown below.
- the adjusting devices 14 of opposite segments lie on a common axis 15.
- FIG. 3 shows a similar pivoting of all segments 11a to 11f, however, almost any desired cross-sectional shape, in particular for complex braid core geometries, can be generated via the adjusting device 14 which can be controlled separately for each segment.
- FIG. 4 shows a preferred technical realization of the braiding ring 11 according to the invention.
- the individual segments 11a to 11f are fastened with their adjusting devices 14 to a common retaining ring 16.
- every second segment 1, 11d, 11f is fastened to the retaining ring 16 via spacers 17, as clearly shown in FIG. 4b you can see.
- spacers 17 and a second spaced retaining ring is possible or an alternate attachment to the front and back of the retaining ring sixteenth
- each segment 11a to 11f has a longitudinal groove 18 which is constricted at its upper edge 19.
- the free end of the spindle 20 is displaceably arranged via a low-friction guide adapted to the cross section of the longitudinal groove 18.
- the segments 11 may also be mechanically connected to the associated adjusting device 14 on the side opposite the guide edge thereof.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015210581.4A DE102015210581A1 (en) | 2015-06-10 | 2015-06-10 | braiding |
PCT/EP2016/055549 WO2016198175A1 (en) | 2015-06-10 | 2016-03-15 | Braiding machine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3307934A1 true EP3307934A1 (en) | 2018-04-18 |
EP3307934B1 EP3307934B1 (en) | 2019-02-27 |
Family
ID=55588237
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16711201.0A Active EP3307934B1 (en) | 2015-06-10 | 2016-03-15 | Braiding machine |
Country Status (6)
Country | Link |
---|---|
US (1) | US10526733B2 (en) |
EP (1) | EP3307934B1 (en) |
JP (1) | JP6516867B2 (en) |
CN (1) | CN107407024B (en) |
DE (1) | DE102015210581A1 (en) |
WO (1) | WO2016198175A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5503291B2 (en) * | 2006-12-18 | 2014-05-28 | シー・アール・バード・インコーポレーテッド | Balloon with segmented fabric layers and method for braiding on a three-dimensional mold |
DE102015210578A1 (en) * | 2015-06-10 | 2016-12-15 | Bayerische Motoren Werke Aktiengesellschaft | braiding |
DE102015210581A1 (en) * | 2015-06-10 | 2016-12-15 | Bayerische Motoren Werke Aktiengesellschaft | braiding |
CN106988009B (en) * | 2017-04-26 | 2022-10-18 | 西安工程大学 | Three-dimensional tubular loom with tighten and reducing mechanism |
DE102017219716A1 (en) * | 2017-11-07 | 2019-05-09 | Bayerische Motoren Werke Aktiengesellschaft | Process for producing a braided preform, braiding preform, fiber reinforced component and braiding machine |
CN108584238A (en) * | 2018-06-16 | 2018-09-28 | 上海拓牛智能科技有限公司 | Refuse bag packing mechanism and intelligent garbage bin |
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US1516568A (en) * | 1917-06-11 | 1924-11-25 | Horn Guido | Circular-braiding machine |
FR912M (en) * | 1960-10-12 | 1961-11-06 | ||
US5320696A (en) * | 1988-02-02 | 1994-06-14 | E. I. Du Pont De Nemours And Company | In-line consolidation of braided structures |
US5067384A (en) * | 1989-01-23 | 1991-11-26 | Cortland Cable Company, Inc. | Braider method and apparatus for manufactured faired rope or cable |
US5712010A (en) * | 1994-04-06 | 1998-01-27 | Vitrica, S.A. De C.V. | Braided sleeving with rib strands |
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JP4624453B2 (en) * | 2008-09-03 | 2011-02-02 | トヨタ自動車株式会社 | Yarn layer forming apparatus, yarn layer forming method, and fiber reinforced member manufacturing method |
WO2010059832A1 (en) * | 2008-11-19 | 2010-05-27 | Drexel University | Method and apparatus for braiding micro strands |
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DE102010047193A1 (en) | 2010-09-30 | 2012-04-05 | SGL Kümpers GmbH & Co.KG | Circular braiding machine for processing coal and glass fiber roving for use in manufacture of semi-finished fiber, has control unit that adjusts inner diameter of braiding element corresponding to inner diameter of winded braiding core |
FR2969666B1 (en) * | 2010-12-24 | 2013-02-01 | Messier Dowty Sa | PROCESS FOR THE TRESSING OF REINFORCING FIBERS WITH INCLINATION VARIATION OF BRAIDED FIBERS |
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-
2015
- 2015-06-10 DE DE102015210581.4A patent/DE102015210581A1/en not_active Withdrawn
-
2016
- 2016-03-15 JP JP2017552459A patent/JP6516867B2/en active Active
- 2016-03-15 WO PCT/EP2016/055549 patent/WO2016198175A1/en unknown
- 2016-03-15 EP EP16711201.0A patent/EP3307934B1/en active Active
- 2016-03-15 CN CN201680013832.4A patent/CN107407024B/en active Active
-
2017
- 2017-09-27 US US15/716,775 patent/US10526733B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
JP6516867B2 (en) | 2019-05-22 |
CN107407024B (en) | 2019-07-16 |
EP3307934B1 (en) | 2019-02-27 |
US10526733B2 (en) | 2020-01-07 |
DE102015210581A1 (en) | 2016-12-15 |
JP2018519429A (en) | 2018-07-19 |
WO2016198175A1 (en) | 2016-12-15 |
US20180016718A1 (en) | 2018-01-18 |
CN107407024A (en) | 2017-11-28 |
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