EP1568807B1 - Rollenanordnung für eine Vorrichtung zur Herstellung eines Selbstzwirngarns sowie Verfahren zur Herstellung eines Selbstzwirngarns - Google Patents

Rollenanordnung für eine Vorrichtung zur Herstellung eines Selbstzwirngarns sowie Verfahren zur Herstellung eines Selbstzwirngarns Download PDF

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Publication number
EP1568807B1
EP1568807B1 EP04029752A EP04029752A EP1568807B1 EP 1568807 B1 EP1568807 B1 EP 1568807B1 EP 04029752 A EP04029752 A EP 04029752A EP 04029752 A EP04029752 A EP 04029752A EP 1568807 B1 EP1568807 B1 EP 1568807B1
Authority
EP
European Patent Office
Prior art keywords
roller
rovings
twisting
guide
self
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
EP04029752A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1568807A2 (de
EP1568807A3 (de
Inventor
Markus Beerli
Carlo Xotta
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.)
OC Oerlikon Textile Holding AG
Original Assignee
Saurer Hamel 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 Saurer Hamel AG filed Critical Saurer Hamel AG
Priority to PL04029752T priority Critical patent/PL1568807T3/pl
Publication of EP1568807A2 publication Critical patent/EP1568807A2/de
Publication of EP1568807A3 publication Critical patent/EP1568807A3/de
Application granted granted Critical
Publication of EP1568807B1 publication Critical patent/EP1568807B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/26—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre with characteristics dependent on the amount or direction of twist
    • D02G3/28—Doubled, plied, or cabled threads
    • D02G3/286—Doubled, plied, or cabled threads with alternatively "S" and "Z" direction of twist, e.g. Self-twist process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
    • B26B19/02—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers of the reciprocating-cutter type
    • B26B19/04—Cutting heads therefor; Cutters therefor; Securing equipment thereof
    • B26B19/044—Manufacture and assembly of cutter blocks

Definitions

  • the invention relates to a roller assembly for a device for producing a self-twisting yarn according to the preamble of claim 1, an apparatus for producing a self-twisting yarn, which comprises such a roller assembly and a method for producing a self-twisting yarn according to the preamble of claim 12.
  • a generic method for producing a self-twisting yarn and an apparatus for performing this method is known from DE 100 32 708 C1 known.
  • first at least two rovings are alternately provided with S and Z turns, which are separated by areas without rotation. These rovings are then brought together on a guide roller so that they automatically rotate together due to their tendency to reverse, the areas without rotation in the twisted self-twisting yarn having a phase difference.
  • This phase difference is adjusted by passing one of the rovings over a diverting pulley and from there onto the idler, whereby this roving has to travel a longer distance compared to the other roving until it joins the other roving.
  • the present invention seeks to provide a method and apparatus for producing a self-twisting yarn, with which a twisted self-twisting yarn is produced, which is characterized by a uniform phase characteristic of the untwisted portions of the rovings along the twisted Edzwirngarns.
  • the invention proposes a roller assembly for a device for producing a self-twisting yarn with the features of claim 1 and a set of roller assemblies according to claim 5. Preferred embodiments of the roller assembly can be found in the dependent claims 2 to 4.
  • each of the rovings is given false rotations, so that each roving has alternating ranges of S and Z turns. Subsequently, these rovings are brought together so that they twine automatically to the self-twisting yarn.
  • the tendency to reverse the misaligned rovings is utilized. It is known that the strength of the twisted self-twisting yarn depends very much on the phase of the areas without rotation of the two rovings. The rovings are therefore usually merged so that their areas are out of phase without rotation. This is illustrated by way of illustration in FIGS. 1 and 2, wherein FIG.
  • FIG. 1 shows the situation in which the two rovings 2, 3 are arranged parallel next to one another, the regions without rotation (0) facing each other or in phase.
  • Figure 2 shows the preferred situation for the production of a self-twisting yarn of high strength, in which the areas without rotation (0) of the two rovings 2, 3 are out of phase.
  • the phase difference between the unrotated portions of the rovings 2, 3 will hereinafter be denoted by ⁇ .
  • Figure 7 shows a perspective view of an apparatus for producing a self-twisting yarn 1 from two rovings 2 and 3.
  • the rovings 2, 3 are first generated in a drafting system, not shown here and then parallel next to each other running guided in a false twisting device 10.
  • the rovings 2, 3 are given periodically alternately regions with S and Z turns, which are separated from each other by regions without rotation (0).
  • the rovings 2, 3 are brought together in a twisting device 11 in such a way that they twist together due to their tendency to reverse and twist together to form the self-twisting yarn 1.
  • the false twisting device 10 is formed as a Nitschel device.
  • This has two substantially cylindrical and axially parallel arranged Nitschelwalzen 12, 13.
  • the Nitschelwalzen 12, 13 rotate on the one hand in opposite directions to each other about their axes of rotation 12a, 13a, which are arranged parallel to each other.
  • the rovings 2, 3 are conveyed through the slips 12, 13.
  • the two Nitschelwalzen 12, 13 oscillate in the axial direction between two limit positions. By this axial oscillation, the rovings 2, 3 carried out are twisted and thus obtain a rotation.
  • the rovings In one direction of oscillation, the rovings receive an S-twist and a Z-twist in the opposite direction of oscillation. Since the Nitschelwalzen 12, 13 resting at the reversal points of their axial movement, receive the rovings 2, 3 at these times no rotation. Therefore, the alternating ranges of S and Z rotations are separated by areas of no rotation (0) and areas of lesser rotation, respectively.
  • the twisting device 11 in which the rovings 2, 3 are subsequently twisted together, comprises a roller arrangement which comprises a first deflection roller 5, a second deflection roller 7 and a guide roller 6.
  • This roller arrangement is shown schematically in Figure 3 and in Figures 4 to 6 in detail.
  • the one roving 3 is located over a portion of the outer circumference of the first guide roller 5 and is deflected by this from the original Garnlaufraum C and guided on the second guide roller 7, wraps around a portion (about 270 °) of the outer periphery of this second guide roller 7 and finally passed to the guide roller 6, where it wraps around a portion (about 225 °) of the outer circumference until it reaches the merge point 22 on the guide surface of the guide roller 6.
  • the other roving 2 is guided directly on the guide roller 6, where it merges with the roving 3 at the merge point 22.
  • the rollers 5, 6 and 7 are each mounted on a base plate 4 in the arrangement shown above.
  • yarn guide 8 and 9 are arranged.
  • the yarn guides 8, 9 serve to guide the roving 2 on the outer circumference of the guide roller 6 and the roving 3 on the outer circumference of the first guide roller 5.
  • the yarn guide 8 is arranged with respect to its associated guide roller 6 so that the roving 2 is deflected such that it rests only point-shaped at the merge point 22 on the outer circumference of the guide roller 6.
  • the yarn guide 9 serves to guide the roving 3 on the outer circumference of the first guide roller 5, wherein the first bearing point of the roving 3 is referred to the guide roller 5 in the following by reference numeral 33.
  • the first guide roller 5 and the guide roller 6 are arranged so that their axes 5A and 6A are parallel to each other and lie in a plane E, which is parallel to the plane which is spanned by the axes of rotation 12a, 13a of the Nitschelwalzen 12, 13.
  • a plane E which is parallel to the plane which is spanned by the axes of rotation 12a, 13a of the Nitschelwalzen 12, 13.
  • this line lies exactly in the plane E, which is spanned by the axes A5 and A6.
  • the points 22 and 33 thus each have the same distance from the Nitschelwalzen 12, 13. Starting from the attachment point 33, the one roving 3 then wraps around a substantial part of the circumference of the second guide roller 7 (at the arrangement shown in Figure 4, the wrap angle is about 270 °).
  • the path difference between the abutment point 33 and the merge point 22 determines the phase difference ⁇ between the unrotated portions of the rovings in the twisted self-twisting yarn. For this reason, the exact observance of the contact points 22 and 33 during the entire process duration of particular importance in terms of uniformity of the self-twisting yarn produced 1.
  • the roller assembly comprises the base plate 4 and an intermediate plate 14. On the base plate 4, the two pulleys 5 and 7 and the guide roller 6 are arranged.
  • the second guide roller 7 is rotatably mounted on a bearing 15 in a receiving plate 16 which is fixed to the base plate 4, stored.
  • the guide rollers 5 and 7 and the guide roller 6 are each cylindrical in shape, wherein in the cylinder jacket in each case a guide groove 5a, 6a and 7a is cut.
  • the guide grooves serve to keep the rovings 2, 3 running over the respective roller on the cylinder jacket surface of the deflection or guide rollers 5, 6, 7 and to prevent them from slipping off.
  • the two yarn guides 8 and 9 are further attached, which are formed in the embodiment described here as a thread guide eyelets. Alternatively, thread guide pins can be used.
  • the guide roller 6 is in this case the yarn guide 8 and the first guide roller 5, the yarn guide 9 is assigned.
  • the yarn guides 8 and 9 are in this case arranged so that they are in the yarn running direction C immediately in front of the guide roller 6 and der Umlenkrolle 5.
  • the base plate 4 is attached via a quick release on the intermediate plate 14.
  • the quick release is formed by two permanent magnets 17, 18 which are inserted in recesses 19, 20 of the intermediate plate.
  • the metallic base plate is held by the magnetic force of the magnets 17, 18 on the intermediate plate 14.
  • other quick fasteners such as B. a bayonet closure, are used.
  • a holder 21 is fastened via screw connections. This holder 21 serves to support the intermediate plate 14 in the apparatus for producing a self-twisting yarn, as shown in FIG.
  • a set of roller assemblies consisting of a plurality of roller assemblies as shown in Figs. 4-6 and 9 is provided ,
  • the individual roller arrangements of this set are identical in construction to the roller arrangements shown in FIGS. 4 to 6 and 9, but differ in the distance D between the axis A7 of the second guide pulley 7 and the plane E which passes through the axes A5 and A6 of the first guide roller 5 and the guide roller 6 is defined.
  • phase difference ⁇ When starting a twisting process for producing a self-twisting yarn from two rovings with predetermined properties, it is therefore possible to set the phase difference ⁇ to a desired value by selecting a suitable roller arrangement, this desired value will generally depend on the properties of the rovings 2, 3 ,
  • the twisted self-twisting yarn (1) is guided over a discharge yarn guide immediately after leaving the guide roller (6). This allows a stable guidance of the twisted self-twisting yarn 1.
  • the outlet yarn guide is here also like the thread guides 8 and 9 designed as a thread guide eye or as a thread guide pin.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Ropes Or Cables (AREA)
EP04029752A 2004-01-17 2004-12-16 Rollenanordnung für eine Vorrichtung zur Herstellung eines Selbstzwirngarns sowie Verfahren zur Herstellung eines Selbstzwirngarns Expired - Lifetime EP1568807B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL04029752T PL1568807T3 (pl) 2004-01-17 2004-12-16 Układ rolkowy dla urządzenia do wytwarzania przędzy samoskrętnej oraz sposób wytwarzania przędzy samoskrętnej

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004002502A DE102004002502B3 (de) 2004-01-17 2004-01-17 Rollenanordnung für eine Vorrichtung zur Herstellung eines Selbstzwirngarns sowie Verfahren zur Herstellung eines Selbstzwirngarns
DE102004002502 2004-01-17

Publications (3)

Publication Number Publication Date
EP1568807A2 EP1568807A2 (de) 2005-08-31
EP1568807A3 EP1568807A3 (de) 2006-05-03
EP1568807B1 true EP1568807B1 (de) 2007-07-25

Family

ID=34042362

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04029752A Expired - Lifetime EP1568807B1 (de) 2004-01-17 2004-12-16 Rollenanordnung für eine Vorrichtung zur Herstellung eines Selbstzwirngarns sowie Verfahren zur Herstellung eines Selbstzwirngarns

Country Status (7)

Country Link
EP (1) EP1568807B1 (pl)
KR (1) KR20050075698A (pl)
CN (1) CN1641084B (pl)
AT (1) ATE368140T1 (pl)
DE (2) DE102004002502B3 (pl)
ES (1) ES2286555T3 (pl)
PL (1) PL1568807T3 (pl)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103938320B (zh) * 2014-04-14 2016-08-17 上海八达纺织印染服装有限公司 一种涤棉自捻纱线的加工方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD103464A1 (pl) * 1972-05-24 1974-01-20
DE10032708C1 (de) * 2000-07-07 2002-01-31 Hamel Ag Arbon Verfahren und Vorrichtung zur Herstellung eines Selbstzwirngarns

Also Published As

Publication number Publication date
CN1641084B (zh) 2010-05-26
ATE368140T1 (de) 2007-08-15
DE102004002502B3 (de) 2005-02-10
ES2286555T3 (es) 2007-12-01
EP1568807A2 (de) 2005-08-31
EP1568807A3 (de) 2006-05-03
DE502004004430D1 (de) 2007-09-06
PL1568807T3 (pl) 2007-12-31
CN1641084A (zh) 2005-07-20
KR20050075698A (ko) 2005-07-21

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