EP0213462B1 - Changierfadenführer - Google Patents

Changierfadenführer Download PDF

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Publication number
EP0213462B1
EP0213462B1 EP86111044A EP86111044A EP0213462B1 EP 0213462 B1 EP0213462 B1 EP 0213462B1 EP 86111044 A EP86111044 A EP 86111044A EP 86111044 A EP86111044 A EP 86111044A EP 0213462 B1 EP0213462 B1 EP 0213462B1
Authority
EP
European Patent Office
Prior art keywords
guide
traversing
yam
webs
shuttle
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
EP86111044A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0213462A2 (de
EP0213462A3 (en
Inventor
Albert Stitz
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.)
Oerlikon Barmag AG
Original Assignee
Barmag AG
Barmag Barmer Maschinenfabrik 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 Barmag AG, Barmag Barmer Maschinenfabrik AG filed Critical Barmag AG
Publication of EP0213462A2 publication Critical patent/EP0213462A2/de
Publication of EP0213462A3 publication Critical patent/EP0213462A3/de
Application granted granted Critical
Publication of EP0213462B1 publication Critical patent/EP0213462B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/28—Traversing devices; Package-shaping arrangements
    • B65H54/2806—Traversing devices driven by cam
    • B65H54/2809—Traversing devices driven by cam rotating grooved cam
    • B65H54/2812—Traversing devices driven by cam rotating grooved cam with a traversing guide running in the groove
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the invention relates to a traversing thread guide for winding machines for winding threads.
  • the traversing thread guide is driven by a rotating reversing thread roller.
  • a sweeping thread roller is understood to mean a roller which has a thread-shaped groove on its circumference, which reverses its slope at the ends of the traversing stroke.
  • the traversing thread guide is moved back and forth over the traversing stroke by rotating the reversing thread roller.
  • the traversing thread guide consists of one piece, e.g. Plastic, and has a boat on one side and the thread guide on the other side.
  • the boat is an elongated structure that adapts to the thread groove and meshes with it.
  • the thread guide is made of a wear-resistant material, e.g.
  • the thread guide has a slot for guiding the thread.
  • the traversing thread guide is provided with guide edges that describe an equilateral parallelogram.
  • the plate-shaped thread guide lies on the longer diagonal of the parallelogram.
  • the slot for guiding the thread lies above the intersection of the diagonals of the parallelogram.
  • This traversing thread guide is known from US-A 3 664 596. The known embodiment provides that the guide edges are formed by a diamond-shaped guide plate. This guide plate is used to guide the traversing thread guide in a straight line between two straight guide rails.
  • These guide rails have a distance which corresponds essentially to the length of the diagonal of the guide plate, which is perpendicular to the thread guide.
  • the guide edges and the shuttle are now inclined to each other so that two opposing parallel guide edges always rest on the two guide rails when the shuttle slides in the reverse thread groove.
  • the straight guidance is taken over by the other pair of opposite guide edges.
  • these guide rails comprise the guide plate on the front and rear side, so that the traversing thread guide is positively guided both in the circumferential direction and in both radial directions to the reversing thread roller. which are operated at speeds of more than 1,000 m / min thread winding speed.
  • the traversing speed depends on the winding speed. Furthermore, a very sudden reversal of the traversing thread guide at the stroke ends is required to build up a good cylindrical bobbin. In other words, the reversal thread groove at the stroke reversal points must have a very small radius of curvature. As a result, the traversing thread guide is subjected to high accelerations at the stroke ends. It can therefore be seen that the service life of such a traversing thread guide is limited in particular by abrasion and fatigue.
  • the object of the invention is to improve the known traversing thread guide, in particular to increase the service life. This solution results from the characterizing part of claim 1.
  • the invention turns away from the known efforts. It creates a replacement for the parallelogram-shaped guide plate of the known traversing thread guide. Their importance lies in the fact that the leading edges are assigned a further, previously non-existent function. According to the invention, the guide edges are designed in such a way that they are able to compensate and dampen irregularities in the movement to which the traversing thread guide is subjected by disturbances in the straight guidance and unavoidable vibrations and by the reverse accelerations.
  • the first test samples which were not optimized in terms of design, showed an improvement in service life of more than 30% compared to the optimal designs of the known traversing thread guide.
  • the guide edges are formed on elongated guide webs which are attached to the traversing thread guide in such a way that the guide edges in contact with the guide flanks are elastically resilient and damping movable relative to the traversing thread guide.
  • the guide webs are thus, for example, firmly connected to the traversing thread guide in the middle plane of the shuttle and are designed as thin cantilever arms.
  • the leading edges of these guide webs lie on the sides of a diamond-shaped, equilateral parallelogram. They are arranged in the area of at least one of the obtuse angles of the parallelogram.
  • 4 guide webs, that is two on each side are fixed at one end to the traversing thread guide, but are connected in a resilient manner. The other end of the guide webs protrude into the area of the acute angles of the parallelogram and can be moved there elastically. By choosing the right material, good damping properties can be ensured.
  • the guide webs are cantilever-mounted on the traversing thread guide. This means that the guide webs are elastically movable like spring bars clamped on one side. In order to achieve a sufficiently high level of stability and fatigue strength (number of tolerable load changes), it is necessary to make the guide bars relatively thick in the area of their attachment.
  • the guide webs support each other at their free ends. Therefore, in this embodiment, the other guide bar also contributes to the strength of the one guide bar.
  • the shuttle for carrying the thread guide which is made of wear-resistant material, preferably carries a central web, which is between the guide webs within the simultaneous parallelogram they have outlined, preferably on the large diagonal thereof Parallelogram.
  • the thread guide can be let into this central web.
  • the central web is also designed as a flexible, spring-elastic web, which on the one hand ensures sufficient spring elasticity for the guide webs, but on the other hand also contributes to the strength and, in particular, fatigue strength of the guide webs.
  • this connection can be made particularly soft, so that this connection also contributes to the elasticity of the guide webs.
  • the guide webs are attached directly to the top of the boat.
  • at least a part of the underside of the guide webs and - if present also the middle web - is designed so that this part is suitable as a sliding surface from the circumference of the reversing thread roller.
  • the guide rails for the straight guide are not U-shaped in cross-section, as in the known embodiment, but L-shaped. The straight guide and fixing of the traversing thread guide in the circumferential direction of the reversing thread shaft is carried out by the parallel flanks of the straight guide.
  • the traversing thread guide is fixed in the radial direction to the reversing thread shaft on the side facing away from the reversing thread shaft by the L flank, which protrudes perpendicularly from the guide flank of the straight guide and on the side facing the reversing thread shaft directly by the reversing thread shaft itself.
  • the supporting webs are fastened to the central web, approximately in its longitudinal center, and parallel to the boat on the central web and carry the guide webs at their free ends.
  • This design is particularly possible and advantageous if the thread guide and the central web, which carries the thread guide, are connected to the boat by a constricted neck, as is the case in a corresponding form in the known traversing thread guide.
  • An embodiment which is characterized by a very compact, small design with great stability and good spring and damping properties is characterized in that the guide webs are laterally cantilevered on the top of the boat and the middle web is fixed in between.
  • the center web and guide webs are connected to one another by support webs, the support webs also being connected to the boat.
  • FIG. 1 The individual exemplary embodiments are described below, the first exemplary embodiment in a top view (FIG. 1), a partial section through the traversing housing and reversing thread shaft (FIG. 2), a perspective top view (FIG. 3) and a perspective bottom view (FIG. 4) ,
  • the second embodiment in a partial section through traversing housing and reversing thread shaft (Fig. 5), the third embodiment in a top view (Fig. 6), the fourth embodiment in a top view (Fig. 7) and both of the latter embodiments in a side view with a partial section through Traversing housing and reverse thread shaft are shown in one plane of the thread groove (Fig. 8).
  • the traversing thread guide 1 is supported with the underside 13 of the central web and the guide webs in the radial direction on the surface of the reversing thread shaft 7.
  • the traversing thread guide is guided in the circumferential direction by its guide webs 6 in the guide rails 9.
  • the guide rails 9 are L-shaped. They have two mutually parallel guide flanks 10, on which the two guide webs 6.1, which lie opposite one another, are straight.
  • Each guide rail also has a retaining flank 11, which includes the guide webs and support webs up to the region of the central web and prevents the traversing thread guide from falling out of the thread groove 8.
  • the contours of the guide webs with their guide edges 12 are shaped such that when the thread pitch is reversed, Change the guide ends of the guide bars. While the guide webs 6.1 with the guide edges 12.1 lead in the slope of the thread groove 8 indicated in FIG. 3, the guide webs 6.2 with the guide edges 12.2 take the lead when the slope is reversed.
  • the traversing thread guide can therefore be pivoted at the traversing stroke ends about an axis which is essentially radial to the reversing thread shaft and which is essentially aligned with the guide slot 14 in the thread guide 2.
  • Fig. 5 is a Altematiwersion shown in section in the central plane of the boat, in which the central web 3 is connected to the boat 4 by a neck 15.
  • the supporting webs 5 sit laterally on the central web - approximately in the central plane of the shuttle 4 -.
  • the guide webs 6 sit at the ends of the supporting webs 5.
  • the guide rails 9 are U-shaped.
  • the guide rails have two further flanks 18 which grip around the guide webs 6 on the front and the back of the traversing thread guide.
  • the traversing thread guides - exemplary embodiments according to FIGS. 6 and 7 - and in addition to FIG. 8, are designed similarly to the previously described exemplary embodiments. Common to the exemplary embodiments is that the thread guide 2, which projects beyond the guide rail 9, is fastened to the front of the traversing thread guide 1.
  • FIG. 8 shows the alternative version according to FIG. 7 in a side view.
  • the lower guide web and the connecting web are partially cut away - as can be seen in FIG. 7.
  • part of the underside namely the area which - seen radially to the reversing thread roller - lies below the thread guide, is particularly flat, so that this area can slide on the reversing thread roller and support the traversing thread guide in the radial direction.
  • the guide webs 6 are designed as a U-profile. Such profiling on the one hand allows good elasticity, i.e. achieve a low spring constant and, on the other hand, high strength, in particular fatigue strength.
  • each individual guide web is designed to be particularly flexible with a low spring constant. The strength is not impaired because the guide web 6 is supported on the opposite guide web 6.
  • the support webs 17 can also be particularly soft.

Landscapes

  • Winding Filamentary Materials (AREA)
  • Guides For Winding Or Rewinding, Or Guides For Filamentary Materials (AREA)
  • Knitting Machines (AREA)
EP86111044A 1985-08-29 1986-08-09 Changierfadenführer Expired - Lifetime EP0213462B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3530804 1985-08-29
DE19853530804 DE3530804A1 (de) 1985-08-29 1985-08-29 Changierfadenfuehrer

Publications (3)

Publication Number Publication Date
EP0213462A2 EP0213462A2 (de) 1987-03-11
EP0213462A3 EP0213462A3 (en) 1988-04-06
EP0213462B1 true EP0213462B1 (de) 1990-05-02

Family

ID=6279613

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86111044A Expired - Lifetime EP0213462B1 (de) 1985-08-29 1986-08-09 Changierfadenführer

Country Status (4)

Country Link
US (1) US4685637A (US20080293856A1-20081127-C00150.png)
EP (1) EP0213462B1 (US20080293856A1-20081127-C00150.png)
JP (1) JPH07100566B2 (US20080293856A1-20081127-C00150.png)
DE (2) DE3530804A1 (US20080293856A1-20081127-C00150.png)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3721139C2 (de) * 1986-07-01 1994-08-04 Barmag Barmer Maschf Changierfadenführer
GB9026318D0 (en) * 1990-12-04 1991-01-23 Rieter Scragg Ltd Winding apparatus
US5256230A (en) * 1991-07-03 1993-10-26 Phillips Petroleum Company Winding of resin impregnated fibers using a heated guide
JP2582754Y2 (ja) * 1992-11-24 1998-10-08 村田機械株式会社 トラバースシュー
JP2526839B2 (ja) * 1993-11-29 1996-08-21 井関農機株式会社 穀物乾燥調製施設における穀物仕分け方法
DE19536761A1 (de) * 1995-10-02 1997-04-03 Schlafhorst & Co W Kehrgewindeantrieb für Fadenführer einer Spuleinrichtung
DE19642473C1 (de) * 1996-10-15 1998-01-22 Sahm Georg Fa Changierfadenführer für Aufspulmaschinen mit eine endlose Gewindenut aufweisender Kehrgewindewelle

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3059874A (en) * 1961-03-31 1962-10-23 Du Pont Yarn traversing apparatus
DE1901305A1 (de) * 1969-01-11 1970-08-06 Barmag Barmer Maschf Vorrichtung zum Hin- und Herfuehren eines Fadens in Spulmaschinen
CH575335A5 (US20080293856A1-20081127-C00150.png) * 1972-12-11 1976-05-14 Rieter Ag Maschf
CH615354A5 (US20080293856A1-20081127-C00150.png) * 1977-02-04 1980-01-31 Rieter Ag Maschf
JPS58224972A (ja) * 1982-06-24 1983-12-27 Asahi Chem Ind Co Ltd 糸条トラバ−ス装置
JPS5933860U (ja) * 1982-08-25 1984-03-02 カネボウ株式会社 トラバ−スガイド用カム

Also Published As

Publication number Publication date
EP0213462A2 (de) 1987-03-11
EP0213462A3 (en) 1988-04-06
DE3670823D1 (de) 1990-06-07
JPH07100566B2 (ja) 1995-11-01
DE3530804A1 (de) 1987-03-12
DE3530804C2 (US20080293856A1-20081127-C00150.png) 1989-03-30
US4685637A (en) 1987-08-11
JPS6251571A (ja) 1987-03-06

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