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WO2012003972A1 - Dispositif d'étirage pour machine de filature - Google Patents

Dispositif d'étirage pour machine de filature Download PDF

Info

Publication number
WO2012003972A1
WO2012003972A1 PCT/EP2011/003350 EP2011003350W WO2012003972A1 WO 2012003972 A1 WO2012003972 A1 WO 2012003972A1 EP 2011003350 W EP2011003350 W EP 2011003350W WO 2012003972 A1 WO2012003972 A1 WO 2012003972A1
Authority
WO
WIPO (PCT)
Prior art keywords
rollers
drafting
control
compactor
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.)
Ceased
Application number
PCT/EP2011/003350
Other languages
English (en)
Inventor
Umberto Micheletti
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.)
VANTEX TECHNOLOGIES GmbH
Original Assignee
VANTEX TECHNOLOGIES GmbH
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 VANTEX TECHNOLOGIES GmbH filed Critical VANTEX TECHNOLOGIES GmbH
Priority to BR112013000329A priority Critical patent/BR112013000329A2/pt
Priority to CN201180033174.2A priority patent/CN102971455B/zh
Publication of WO2012003972A1 publication Critical patent/WO2012003972A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • D01H5/22—Drafting machines or arrangements without fallers or like pinned bars in which fibres are controlled by rollers only
    • 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
    • D01H5/56—Supports for drafting elements

Definitions

  • characterizing feature of claim 1 avoids all this: the occurrence of friction between textile fibers and varying speeds exerted on the fibers by the control rollers is effectively avoided by remarkably simple measures, i.e. a certain predetermined control gap between the control rollers in combination with an active drive mechanism for each of the pair of control rollers.
  • the drafting operations result in much higher quality and regularity of the final yarn, even in the case of a varying mass of the raw material or varying qualities of the textile fibers, which depend in particular on the preparation stages, or whether they are dry or wet.
  • Fig. 2 is a detailed side view of the control rollers, the compactor and the
  • the raw material may come from a preparation step, e.g. a wet treatment prior to the feed rollers on the right-hand top side in Fig. 1 , as a so called rove 1.
  • the rove 1 is fed in the feeding direction F to a first pair of rollers 2, the so-called feed rollers 2.
  • the draft rollers 3 draw the rove 1 from the feed rollers 2.
  • the delivery roller pair 5 draws the rove through the pair of control rollers 4 and the compactor 8.
  • control rollers 4 both have an active gear drive mechanism. Furthermore the control rollers 4, according to the present invention, are not in contact with each other, but have a special set distance between them to provide a defined control gap 6 with a predetermined dimension (cf. also Fig. 2). The control gap 6 is set according to the variable parameters of the fibers as mentioned above.
  • the second sub-drafting zone B from the draft rollers 3 to the two actively driven control rollers 4 is the principal drafting area for the majority of fibers, i.e. long and medium fibers.
  • the two control rollers 4 are also driven via a gear mechanism (not shown in the figures), which is in contact with the draft rollers 3, and at a predetermined speed such that a uniform and continuous drafting action is guaranteed.
  • FIG 3 is a detailed side view of another embodiment of the main parts of this drafting device 10 according to the present invention showing the combination of a control bar ⁇ 9, two driven control rollers 4 and a compactor 8.
  • the control bar 9 is preferably made of a plastic material. At its free end, the control bar 9 has in this embodiment a mounting fork for fitting to existing spinning sections of spinning machinery so that the drafting device 10 may, according to the invention, also be easily fitted to different types of existing spinning frames.
  • the compactor 8 as well as the control rollers 4 and their gear mechanism (not shown in Fig. 3) and the scrapers 12 are all mounted on the control bar 9 by way of screwless fitting means, such as clip mounting or pressure fitting features. This enables a user to easily exchange damaged parts.
  • the drafting device 10 is, according to the invention, capable to greatly increase quality in the drafting output and is less sensitive to variations in the quality and the length of fibers.
  • the different sub-drafting zones A to C of the drafting zone D are specifically adapted to different lengths of fibers and provide a much better control of the fibers in the drafting process than prior art drafting devices have done.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Abstract

L'invention concerne un dispositif d'étirage (10) utilisé dans une machine de filature et pour étirer des fibres discontinues, telles que des fibres de coton, de lin, de laine, de jute, de ramie, de chanvre ou synthétiques au moyen d'une paire de cylindres d'alimentation (2), d'une paire de cylindres d'étirage (3), d'une paire de cylindres de commande (4) et une paire de cylindres de distribution (5) agencés dans l'ordre précité dans le sens d'alimentation de mèche de préparation (F) définissant une zone d'étirage (D) composée de trois sous-zones d'étirage (A, B, C), les cylindres (2, 3, 4) étant entraînés à une vitesse respective prédéterminée de telle sorte que l'action d'étirage est exercée sur la mèche de préparation (1), et que les cylindres de commande (4) sont tous deux pourvus d'un mécanisme d'entraînement actif et montés de manière fixe sans contact, un espace de commande (6) étant défini entre eux selon une dimension prédéterminée.
PCT/EP2011/003350 2010-07-07 2011-07-06 Dispositif d'étirage pour machine de filature Ceased WO2012003972A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BR112013000329A BR112013000329A2 (pt) 2010-07-07 2011-07-06 dispositivo de tração para máquinas de fiação
CN201180033174.2A CN102971455B (zh) 2010-07-07 2011-07-06 用于纺纱机的牵伸装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP10007018.4A EP2405039B1 (fr) 2010-07-07 2010-07-07 Dispositif d'étirage pour machine de filature
EP10007018.4 2010-07-07

Publications (1)

Publication Number Publication Date
WO2012003972A1 true WO2012003972A1 (fr) 2012-01-12

Family

ID=43607819

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/003350 Ceased WO2012003972A1 (fr) 2010-07-07 2011-07-06 Dispositif d'étirage pour machine de filature

Country Status (4)

Country Link
EP (1) EP2405039B1 (fr)
CN (1) CN102971455B (fr)
BR (1) BR112013000329A2 (fr)
WO (1) WO2012003972A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN119615433A (zh) * 2025-01-07 2025-03-14 江南大学 一种自适应牵伸纺纱方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015081398A (ja) * 2013-10-23 2015-04-27 村田機械株式会社 ドラフト装置及び紡績機

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2624074A (en) 1949-10-03 1953-01-06 Tmm Research Ltd Roller-type drafting apparatus of textile spinning and analogous machinery
FR2099575A1 (fr) * 1970-07-24 1972-03-17 Schubert & Salzer Maschinen
GB1484779A (en) * 1974-01-16 1977-09-08 Shino M Roller drafting apparatus having tooth structure
JPS57154421A (en) * 1981-03-12 1982-09-24 Takehisa Kato Drafting apparatus in spinning frame
US4979270A (en) * 1989-08-03 1990-12-25 Burlington Industries, Inc. Apparatus and methods for converting tow into staple
WO2009060298A2 (fr) 2007-11-09 2009-05-14 Atex Spa Unité d'étirage

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB219332A (en) * 1924-07-18 1924-12-18 Melchior Wild Improvements in and relating to the roller drawing mechanism of spinning and like machines
US2252546A (en) * 1936-10-29 1941-08-12 Saco Lowell Shops Sliver drawing mechanism
CN2623709Y (zh) * 2003-05-28 2004-07-07 山东同大纺织机械有限公司 细纱机四罗拉双皮圈牵伸机构
CN2703008Y (zh) * 2003-12-03 2005-06-01 贾峰 一种环锭纺细纱机四罗拉六皮圈牵伸装置
CN100545331C (zh) * 2007-08-15 2009-09-30 经纬纺织机械股份有限公司 环锭纺纱机四罗拉牵伸装置
CN101126188B (zh) * 2007-09-28 2010-05-19 天津工业大学 一种纺制包芯纱的设备及方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2624074A (en) 1949-10-03 1953-01-06 Tmm Research Ltd Roller-type drafting apparatus of textile spinning and analogous machinery
FR2099575A1 (fr) * 1970-07-24 1972-03-17 Schubert & Salzer Maschinen
GB1484779A (en) * 1974-01-16 1977-09-08 Shino M Roller drafting apparatus having tooth structure
JPS57154421A (en) * 1981-03-12 1982-09-24 Takehisa Kato Drafting apparatus in spinning frame
US4979270A (en) * 1989-08-03 1990-12-25 Burlington Industries, Inc. Apparatus and methods for converting tow into staple
WO2009060298A2 (fr) 2007-11-09 2009-05-14 Atex Spa Unité d'étirage

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN119615433A (zh) * 2025-01-07 2025-03-14 江南大学 一种自适应牵伸纺纱方法

Also Published As

Publication number Publication date
BR112013000329A2 (pt) 2017-07-25
CN102971455B (zh) 2017-02-15
CN102971455A (zh) 2013-03-13
EP2405039A1 (fr) 2012-01-11
EP2405039B1 (fr) 2016-11-30

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