EP1609894A1 - Dispositif pour ajuster le longueur de zone d'étirage - Google Patents

Dispositif pour ajuster le longueur de zone d'étirage Download PDF

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Publication number
EP1609894A1
EP1609894A1 EP04015085A EP04015085A EP1609894A1 EP 1609894 A1 EP1609894 A1 EP 1609894A1 EP 04015085 A EP04015085 A EP 04015085A EP 04015085 A EP04015085 A EP 04015085A EP 1609894 A1 EP1609894 A1 EP 1609894A1
Authority
EP
European Patent Office
Prior art keywords
housing
roller
rollers
strap
pair
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Withdrawn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
EP04015085A
Other languages
German (de)
English (en)
Inventor
Herbert Dr. Stadler
Olivier Wüst
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
Priority to EP04015085A priority Critical patent/EP1609894A1/fr
Priority to US11/159,970 priority patent/US20060010656A1/en
Priority to CNA2005100791032A priority patent/CN1712586A/zh
Priority to JP2005185394A priority patent/JP2006009237A/ja
Publication of EP1609894A1 publication Critical patent/EP1609894A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/44—Adjusting drafting elements, e.g. altering ratch
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/70—Constructional features of drafting elements
    • D01H5/86—Aprons; Apron supports; Apron tensioning arrangements

Definitions

  • the present invention relates according to the preamble of the independent claims 1, 11 and 12, a housing with a roller pair mounted therein, a Drafting with such a housing, and a textile machine with a corresponding Drafting system.
  • Drawframes are used in textile technology for warping slivers in Spinning machines used.
  • the warped in the drafting fiber slivers are following the distortion process with a spinning process into a yarn spun.
  • the invention described below deals with the setting or adjustability of said drafting systems, that is with the adjustability the delay distances in a drafting system.
  • a drafting system consists of at least two pairs of rollers, but preferably from three or four pairs of rollers.
  • a roller band passing through the fiber structure is characterized by the different Speeds of the pairs of rollers warped.
  • the delay takes place between two Following pairs of rollers instead, ie in the area between the terminal lines of two pairs of rollers.
  • the distance of two such nip lines is also called Clamping distance designated.
  • a Delay zone in which the fibers of the fiber structure are warped against each other.
  • Widely used are three-cylinder drafting systems with a Vorverzugszone and a Main drafting zone.
  • the clamping distances of the individual Delay zones adapted to the staple length of the fibers to be processed become.
  • the optimum clamping distance is slightly longer than that longest fibers to be processed (approx. 2 mm).
  • the delay zones - this is especially true for the pre-draft zone - therefore stepless or at least in very small steps (step length about 1 mm) can be adjusted.
  • the adjustability of the Clamping distance in the pre-draft zone is especially important because here real distortions in the range of Be driven 1.1 to 5 times, without an additional, external fiber guide (such as a strap).
  • an adjustability of the clamping distance also advantageous even if here the fiber guide through the usually existing straps is guaranteed.
  • it is sufficient here if the clamping distance in two to max. five levels is adjustable.
  • the adjustable feed top roll disclosed in DE 489 810 is mounted on a guided slide and is pressed by means of screws against the associated lower roll. Thanks to the simple construction of the single-apron drafting systems and the lack of a top apron, the adjustment of the top roller was easy to accomplish.
  • EP 362 477 A1 Another device for adjusting pairs of rollers is shown in EP 362 477 A1.
  • the device disclosed therein relates to so-called routes. stretch do not contain straps, as they have to achieve much lower warpage. For that However, they have very high delivery speeds of up to 1000m / min on the outlet roller pair on. Also the contact pressure at the nip line between two rollers is very high, to ensure that at these speeds and the is sufficiently clamped large pulp masses. With such high delivery speeds and pressing the use of straps is excluded because very high Walk work on Riemchen arises, whereby the latter because of the poor heat dissipation would be too hot.
  • the present invention is therefore based on the object, the adjustability of Clamping distance on modern high-speed drafting systems (discharge speeds greater 100m / min).
  • the clamping distance can be adjusted by only one axis is moved and without any adverse effects on the yarn quality or the Spinner result would be determined.
  • the adjustment of the clamping distances is characterized considerably simplified. If only one roller is moved, so can for the rigidly mounted Roller can be used a cage, which does not change when adjusting must become. This also simplifies the adjustment.
  • Fig. 1 shows an adjustable according to the invention roller pair 2.
  • the pair of rollers 2 consists of a lower roller 4 and a top roller 5, which are connected to the so-called Touch nip 6.
  • the top roller 5 is rigidly arranged.
  • the lower roller 4 however, is movably arranged about the axis of the top roller 5, so that the Clamping line 6 is displaceable (see dashed lines positions and arrow in Fig. 1). By moving the lower roller 4 (see arrow) can be the nip line 6 and thus also the clamping distance from the preceding and the next pair of rollers (not shown) shorten or lengthen.
  • the lower roller 4 is arranged axially symmetrically about the rigidly arranged upper roller 5, eliminating a Adjustment of the upper roller 5. This not only makes recruiting faster accomplish, but also the storage of the top roller 5 can be made simpler be.
  • the inventive adjustability of the roller pair allows also to use a single cage 9 and a single upper apron: So far It was not only necessary with the adjusting devices according to the prior art Both rolls had to be moved, but in addition to the cage 9 they had to the straps are replaced (in adaptation to the new clamping distance). Thereby, that the roller 5 is arranged rigidly, eliminates this replacement, whereby a significant amount of time is saved.
  • Fig. 1 straps 8 are attached to the two rollers.
  • the straps will be stretched by the turn bar 10 and the cage 9.
  • the strap 8 of the lower roller 4 as shown is stretchable or stretched over a corresponding tensioning device (see following Fig. 2).
  • the upper roll 5 is rigidly arranged (i.e. whose axis is not movable). According to the invention, however, it would also be conceivable that the rigid axis of the upper roller 5 in the plane 7, which by the two axes the rollers is formed, is movable.
  • Fig. 2 shows the present invention adjustable roller pair 2 according to FIG. 1, wherein an additional strap tensioning device 13 is provided.
  • This strap tensioning device 13 is intended in particular for straps 8, which are not or not sufficiently elastic to compensate for the different length clamping distances by stretching.
  • the illustrated strap tensioning device 13 can be designed as a tension spring. However, other clamping devices are conceivable. Of course, it may be necessary to provide such a tensioning device 13 for the strapping of the top roller (not shown), if this is not sufficiently elastic. Lack of elastic properties or suitable tensioning devices, then according to the invention, the Unterriemchen can also be easily replaced. According to the invention as it has been described and shown in particular in FIGS. 1 and 2, it is not essential to the invention that the rigid or only in the plane 7 movably mounted roller 5 has a strap 8, although this is shown in the figures ,
  • FIG. 3 shows a housing 1 with a pair of rollers mounted therein according to the invention 2.
  • the housing 1 is shown schematically.
  • Adjustable pair of rollers 2 it can also be the storage for another pair of rollers 14 have.
  • another, third pair of rollers in the housing 1 is stored.
  • the axis of the Top roller 5 is not rigidly arranged but in the through the two axes of the rollers 4 and 5 formed plane is slidably mounted in the housing.
  • the top roller 5 is loaded by a loading means 12 (here a spring is shown).
  • the loading means 12 is adjustable.
  • a curved longitudinal bore 11 is provided for this purpose.
  • a second variant shows a straight longitudinal bore 11 (shown in phantom).
  • the turning rail 10 is for the Tensioning the Unterriemchens needed (straps not shown).
  • the housing 1 accommodates only the roller pair 4 mounted according to the invention and further pairs of rollers of the drafting are stored elsewhere.
  • Fig. 4 shows a spinning station of a textile machine, which with a Riemchenstreckwerk 3 is equipped.
  • the Riemchenstreckwerk 3 has a pair of rollers 2, which is adjustable according to the invention (only schematically with reference to the arrow on the Lower roller shown).
  • the upper roller is adjustable according to the invention.
  • the invention is particularly suitable for Doppelriemchenstrecktechnike.
  • the pair of rollers 2 with the present invention adjustable roller 4 forms with the following pair of rollers 14 the main drafting zone 15 of the apron drafting system 3.
  • the figure shows a spinning station with a spin box 20, which is a yarn 17 by means of an air spinning process manufactures.
  • the thus drawn fiber structure 21 is then in the spin box 20th where, by means of an air flow 23 around the mouth of a spindle 22 of the stretched Fiber strand 21 is spun into a yarn 17.
  • the invention is suitable Of course, also for spinning stations, which is a yarn by means of another Produce spinning process.
  • a Ring spinning process can be used.
  • the invention is particularly suitable for Spinning machines with several spinning stations, the individual spinning stations independent equipped with individual drives (i.e., the drive does not take long Waves which drive several spinning stations at the same time).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP04015085A 2004-06-26 2004-06-26 Dispositif pour ajuster le longueur de zone d'étirage Withdrawn EP1609894A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP04015085A EP1609894A1 (fr) 2004-06-26 2004-06-26 Dispositif pour ajuster le longueur de zone d'étirage
US11/159,970 US20060010656A1 (en) 2004-06-26 2005-06-23 Adjustment device for drafting device drafting distances
CNA2005100791032A CN1712586A (zh) 2004-06-26 2005-06-24 牵伸装置的牵伸距离的调节装置
JP2005185394A JP2006009237A (ja) 2004-06-26 2005-06-24 ドラフト機構ドラフト間隔のための調節装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04015085A EP1609894A1 (fr) 2004-06-26 2004-06-26 Dispositif pour ajuster le longueur de zone d'étirage

Publications (1)

Publication Number Publication Date
EP1609894A1 true EP1609894A1 (fr) 2005-12-28

Family

ID=34925504

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04015085A Withdrawn EP1609894A1 (fr) 2004-06-26 2004-06-26 Dispositif pour ajuster le longueur de zone d'étirage

Country Status (4)

Country Link
US (1) US20060010656A1 (fr)
EP (1) EP1609894A1 (fr)
JP (1) JP2006009237A (fr)
CN (1) CN1712586A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009001928A (ja) * 2007-06-20 2009-01-08 Murata Mach Ltd サイドプレート、ドラフト装置及び繊維機械
CN114291622A (zh) * 2021-12-31 2022-04-08 安徽兰翔纺机科技有限公司 一种纺织胶圈组件

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE489810C (de) * 1925-09-07 1930-01-20 Le Blan & Cie Durchzugsstreckwerk fuer Baumwollspinnereimaschinen
GB712512A (en) * 1952-03-06 1954-07-28 Tmm Research Ltd Improvements in or relating to textile drafting apparatus
DE969577C (de) * 1951-12-12 1958-06-19 Josef Pfenningsberg & Co Oberriemchen-Kaefig fuer Doppelriemchen-Streckwerke an Spinnmaschinen
EP0362477A1 (fr) * 1988-09-21 1990-04-11 Trützschler GmbH & Co. KG Système d'étirage pour un métier à filer

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0290743B1 (fr) * 1987-05-12 1991-05-29 Zinser Textilmaschinen GmbH Dispositif pour guider une mèche de fibres
US5479680A (en) * 1990-04-06 1996-01-02 Stalder; Herbert Sliver drafting apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE489810C (de) * 1925-09-07 1930-01-20 Le Blan & Cie Durchzugsstreckwerk fuer Baumwollspinnereimaschinen
DE969577C (de) * 1951-12-12 1958-06-19 Josef Pfenningsberg & Co Oberriemchen-Kaefig fuer Doppelriemchen-Streckwerke an Spinnmaschinen
GB712512A (en) * 1952-03-06 1954-07-28 Tmm Research Ltd Improvements in or relating to textile drafting apparatus
EP0362477A1 (fr) * 1988-09-21 1990-04-11 Trützschler GmbH & Co. KG Système d'étirage pour un métier à filer

Also Published As

Publication number Publication date
CN1712586A (zh) 2005-12-28
US20060010656A1 (en) 2006-01-19
JP2006009237A (ja) 2006-01-12

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