EP0401157A1 - Cylindre rainuré pour un dispositif de va-et-vient pour fils textiles - Google Patents

Cylindre rainuré pour un dispositif de va-et-vient pour fils textiles Download PDF

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Publication number
EP0401157A1
EP0401157A1 EP90810293A EP90810293A EP0401157A1 EP 0401157 A1 EP0401157 A1 EP 0401157A1 EP 90810293 A EP90810293 A EP 90810293A EP 90810293 A EP90810293 A EP 90810293A EP 0401157 A1 EP0401157 A1 EP 0401157A1
Authority
EP
European Patent Office
Prior art keywords
thread guide
guide
drum
groove
thread
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.)
Withdrawn
Application number
EP90810293A
Other languages
German (de)
English (en)
Inventor
Hans-Ulrich Maier
Peter Busenhart
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.)
Maschinenfabrik Rieter AG
Original Assignee
Maschinenfabrik Rieter 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 Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Publication of EP0401157A1 publication Critical patent/EP0401157A1/fr
Withdrawn legal-status Critical Current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 present invention relates to a grooved drum for a thread traversing device according to the preamble of claim 1.
  • Groove drums also called reverse thread rolls, of the type mentioned are known. They essentially consist of a cylindrical body, on the surface of which two oppositely arranged helical grooves are provided and are connected to one another at the ends of the drum. The apex of the arc connecting the two grooves forms the turning point of a thread guide guided in the groove of the groove drum. So that an oscillating movement occurs, two guide rails are fastened at a mutual distance parallel to the axis of rotation of the spool drum and guide the thread guide inserted in the spool drum back and forth. With high double stroke rates and wind speed of 8000 / m / min. very high acceleration forces on the thread guide result at the reversal points at the ends of the grooved drum.
  • a traversing device which has a two-stage thread guide which is guided in the helical area of the groove with the lower narrow part and in the reversal points at the connections of the two opposing grooves only from the upper area.
  • the transition of the two opposing grooves at the ends and in the adjoining areas is carried out in two stages, such that in the reversal area the thread guide is guided on both sides exclusively by the upper section of the guide part of the thread guide.
  • An additional guide is used on the inside of the reversing curve, which has a guide path that is different from the outside curve.
  • the invention seeks to remedy this.
  • the invention as characterized in the claims, solves the problem of creating a grooved drum for a thread traversing device which, with little effort, prevents the thread guide from tipping over in the reversal points of the grooves.
  • the grooves 5 and 7 are formed in a conventional manner and are therefore not shown in the central helical region.
  • a support curve 15 runs essentially parallel to the outer groove flank 13 of the arcuate section 11.
  • the support curve 15 projects beyond the surface 3 of the groove drum 1 and can be part be a circumferential flange or in a flange section extending over a part of the circumference.
  • the groove drum 1 is accommodated in a housing 17 and is rotatably supported on the side of the housing by means of roller bearings 19. Laterally, the housing is closed off by a slot 21 through the two guide rails 9.
  • the guide rails 9 can have a flat or, as shown in FIG. 2, a V-shaped guide for the thread guide along the slot 21. It is also possible that to form both edges of the guide rails 9 forming the slot 21 with other guide forms.
  • the upper part 23 of a thread guide 25 projects through the slot 21.
  • the lower part 27 of the thread guide 25, the so-called shuttle lies completely within the guide grooves 5, 7.
  • the thread guide plate 31, which is preferably made of ceramic and has a slot 29 and is embedded in the upper part 23, projects beyond the surface of the slot 21.
  • FIGS. 4-9 explain two thread guides 25 suitable for use in the above-described grooved drum 1.
  • the one-part thread guide according to FIG. 4 has a shuttle 27, which is designed in a known manner, the shape of which allows a surface-like contact with the guide grooves 5 and 9 and can pass through the reversal area A with essentially little friction.
  • the height h of the boat corresponds approximately to the depth t of the grooves 5 and 7.
  • the boat 27 is connected to the upper part 23 by means of a neck 33.
  • the upper part 23 according to FIG. 4 is essentially diamond-shaped, the larger diagonal being arranged transversely to the longitudinal direction of the boat 27.
  • the rounded regions furthest from the center have a shape which is the same as that of the edges of the guide rails 9.
  • the guidance of the upper part 23 of the thread guide 25 is essentially rectangular, in the exemplary embodiment according to FIGS. 7-9 the guidance of the upper part 23 of the thread guide is V-shaped and fits into a guide groove 21, as shown in FIG Figure 2 is shown.
  • the thread guide 25 is constructed in two parts, so that the upper part 23 can be rotated relative to the lower part (boat) 27.
  • a pin 35 is injected or inserted into the shuttle 27, which pin is rotatably inserted into a bore 37 in the upper part 23.
  • the pin 35 could also be attached to the upper part 23 and the bore 37 to the shuttle 27.
  • the two-part thread guide 25 has an upper part 23, the guides 38 of which are straight are formed and allow a linear guide on the guide rails 9 in the guide slot 21.
  • the front edges 39 which come into contact with the support curve 15 in the arcuate section 11, are arcuate. The radius of the arc can be approximated to the radius of the support curve 15.
  • the support curve 15 has a profile that corresponds to the characteristic of the reversal curve of the thread guide slot 29.
  • the radial distance between the outer flank of the grooves 13 in the arcuate section 11 to the surface of the support curve 15 is constant at least in the apex region and corresponds to the distance B between the side flank of the boat 27 and the front edge 39 of the upper part 23.
  • the mode of operation of the support curve 15 is briefly explained below.
  • the thread guide 25 is guided and transported in a conventional manner.
  • the arcuate section 11 which connects the two grooves 5 and 7 to one another
  • one of the end edges 39 of the thread guide 25 alternately comes into contact with the support or guide curve 15.
  • the tilting moment which occurs in the apex S due to the reversal occurs Acceleration forces causing the thread guide 25 are completely absorbed by the system on the support curve 15.
  • Neither the outer flank 13 of the guide groove area 11, nor the surface 3 of the groove drum 1 between the arcuate section 11 and the guide curve 15 are stressed by high frictional forces on the underside of the upper part 23 of the thread guide 25.
  • the local stress on the thread guide 25, in particular also the neck 33 connecting the upper part 23 to the lower part 27, is exposed to very low alternating loads.
  • a correspondingly selected surface condition of both the support curve 15 and the area 11 lying between the support curve 15 and the groove result in an essentially wear-free operation of the groove drum 1.
  • the service life of the thread guides 25 is also increased considerably as a result.

Landscapes

  • Winding Filamentary Materials (AREA)
EP90810293A 1989-05-29 1990-04-11 Cylindre rainuré pour un dispositif de va-et-vient pour fils textiles Withdrawn EP0401157A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH200689 1989-05-29
CH2006/89 1989-05-29

Publications (1)

Publication Number Publication Date
EP0401157A1 true EP0401157A1 (fr) 1990-12-05

Family

ID=4223702

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90810293A Withdrawn EP0401157A1 (fr) 1989-05-29 1990-04-11 Cylindre rainuré pour un dispositif de va-et-vient pour fils textiles

Country Status (2)

Country Link
EP (1) EP0401157A1 (fr)
JP (1) JPH0313458A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2052717C (fr) * 1991-10-03 1995-03-28 Yoshimi Fukushige Gaine de feutrage enroulee et methode de preparation
JP2582754Y2 (ja) * 1992-11-24 1998-10-08 村田機械株式会社 トラバースシュー

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU175856A1 (ru) * Б. М. Абугов, И. И. Безруков , В. М. Фиткевич Нитераскладывающий механизм для крестомотальной машины
DE1172170B (de) * 1959-03-16 1964-06-11 Sigrid Heim Geb Krukenberg Kehrgewindewalze fuer Textilmaschinen, insbesondere Kreuzspulmaschinen und Laeufer fuer die Kehrgewindewalze
US3407262A (en) * 1966-12-27 1968-10-22 Bouligny Inc R H Winding machine traverse cam and follower therefor
CH523839A (de) * 1971-07-07 1972-06-15 Schweiter Ag Maschf Fadenführvorrichtung zur Erzeugung von Kreuzspulen auf Spulmaschinen
US3900166A (en) * 1972-06-09 1975-08-19 Roannais Constr Textiles Apparatus for reciprocating a yarn guide
EP0054961A1 (fr) * 1980-12-24 1982-06-30 Nitto Boseki Co., Ltd. Va et vient destiné à l'enroulement de matériau continu filiforme

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU175856A1 (ru) * Б. М. Абугов, И. И. Безруков , В. М. Фиткевич Нитераскладывающий механизм для крестомотальной машины
DE1172170B (de) * 1959-03-16 1964-06-11 Sigrid Heim Geb Krukenberg Kehrgewindewalze fuer Textilmaschinen, insbesondere Kreuzspulmaschinen und Laeufer fuer die Kehrgewindewalze
US3407262A (en) * 1966-12-27 1968-10-22 Bouligny Inc R H Winding machine traverse cam and follower therefor
CH523839A (de) * 1971-07-07 1972-06-15 Schweiter Ag Maschf Fadenführvorrichtung zur Erzeugung von Kreuzspulen auf Spulmaschinen
US3900166A (en) * 1972-06-09 1975-08-19 Roannais Constr Textiles Apparatus for reciprocating a yarn guide
EP0054961A1 (fr) * 1980-12-24 1982-06-30 Nitto Boseki Co., Ltd. Va et vient destiné à l'enroulement de matériau continu filiforme

Also Published As

Publication number Publication date
JPH0313458A (ja) 1991-01-22

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