EP1553218A1 - Dispositif de peignage avec un peigne amélioré, en particulier pour coton et des autre fibres - Google Patents

Dispositif de peignage avec un peigne amélioré, en particulier pour coton et des autre fibres Download PDF

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Publication number
EP1553218A1
EP1553218A1 EP05000383A EP05000383A EP1553218A1 EP 1553218 A1 EP1553218 A1 EP 1553218A1 EP 05000383 A EP05000383 A EP 05000383A EP 05000383 A EP05000383 A EP 05000383A EP 1553218 A1 EP1553218 A1 EP 1553218A1
Authority
EP
European Patent Office
Prior art keywords
comb
cotton
combing machine
fibers
combing
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.)
Granted
Application number
EP05000383A
Other languages
German (de)
English (en)
Other versions
EP1553218B1 (fr
Inventor
Aldo Ceriani
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1553218A1 publication Critical patent/EP1553218A1/fr
Application granted granted Critical
Publication of EP1553218B1 publication Critical patent/EP1553218B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G19/00—Combing machines
    • D01G19/06—Details
    • D01G19/10—Construction, mounting, or operating features of combing elements

Definitions

  • the present invention relates to a combing machine with improved comb, particularly for cotton and other fibers. More particularly, the invention relates to a combing machine with a comb that is capable of treating the cotton tufts in an optimum manner without damaging them.
  • cotton tufts need to be combed in order to provide a cotton sliver formed by cotton fibers having a specific length.
  • the cotton tufts are combed so as to eliminate from the tufts the fibers that do not reach the intended length, and the combed cotton is then formed into a sliver by means of suitable mechanisms with differentials or by means of various lever mechanisms.
  • the cotton is currently combed by means of a circular comb, which is arranged below a lower jaw that is adapted to mate with an upper jaw and between which the material to be combed passes.
  • the circular comb according to the known art is unable to eliminate with extreme precision fibers that are shorter than the preset intended length.
  • the operator sets the intended fiber length, with the intention therefore of rejecting all the fibers below such length: the circular comb is unable to eliminate precisely all the cotton fibers that are shorter than the intended length.
  • the aim of the present invention is to provide a combing machine in which the conventional circular comb can be replaced with a comb of a different type, which is capable of treating the material to be processed in an optimum manner without causing stress and breakage thereof.
  • an object of the present invention is to provide a combing machine in which the comb is capable of eliminating with precision fibers that are shorter than the preset length.
  • Another object of the present invention is to provide a combing machine with a comb that can be replaced easily if the process changes.
  • Another object of the present invention is to provide a combing machine with a comb that allows to considerably increase the degree of dust removal from the combed material.
  • Another object of the present invention is to provide a combing machine with an improved comb that is highly reliable, relatively simple to provide, and at competitive costs.
  • a combing machine for cotton and other fibers comprising an oscillating lever that supports a first jaw and a second jaw, at least one roller for feeding the cotton tufts to be combed, and at least one comb for combing said cotton tufts, characterized in that said at least one comb is a pneumatic comb fitted onto at least one of said first and second jaws.
  • the combing machine comprises, as regards the section related to the combing of the cotton tufts, a lever 1, which is adapted to oscillate and support a pair of jaws 2 and 3, respectively a lower jaw and an upper jaw, through which the cotton tufts 4 to be combed pass.
  • the cotton 4 to be combed is fed around a feeder roller 5, which arranges the cotton tufts 4 in the space between the two jaws 2 and 3. At least one comb is provided at the upper jaw 3 or at the lower jaw 2.
  • the comb designated by the reference numeral 6, is a pneumatic comb and is mounted so as to direct air jets onto the cotton tufts 4 that pass below it, in order to eliminate from the cotton tufts the fibers that are shorter than a certain preset length, so as to accordingly cause the combed cotton to advance to a subsequent station, where a cotton sliver is formed.
  • a pneumatic comb 6 instead of a mechanical comb as provided in the background art allows to avoid applying undue stress to the cotton fibers that are present in the tufts, thus eliminating the possibility of breakage of such fibers.
  • the presence of the pneumatic comb allows to considerably increase the degree of dust removal from the combed material, thanks to the emission of air jets that strike the cotton tufts 4.
  • Another advantage provided by the presence of a pneumatic comb is that it is possible to replace said comb rapidly, without having to disassemble the mechanical comb provided in known types of combing machines.
  • the pneumatic comb 6 is constituted by a body 7 that is provided with at least one, and preferably two, mutually opposite openings 8, in which compressed air passes; the body 7 is provided, in a downward region, with a plurality of notches 9, which constitute a corresponding number of outlets for the compressed air, so as to provide small separate jets.
  • This configuration provides a perfect and intense penetration of the air jet through the mass of fibers, removing the fraction of fibers that are shorter than the preset length.
  • the density i.e., the number of notches 9, is a function of the material being processed.
  • the comb is fitted on the upper jaw 3, it is conveniently inclined with respect to the vertical, i.e., with respect to the normal to the advancement direction of the combed material.
  • This inclination can be for example approximately 20°.
  • the combing process performed with the combing machine according to the invention is as follows.
  • the material to be combed 4 that arrives from laps and/or drawframe belts is supplied to the pair of retention jaws 2 and 3 by means of the feeder roller 5.
  • the fraction of fibers of preset length that are left free by the jaws during the upward oscillation of the lever 1 are struck by one or more jets of compressed air that arrive from the comb 6, so as to remove the short fibers, which fall onto an underlying belt 10 to be discharged outside the combing machine.
  • This first step of fiber removal is termed tuft head combing.
  • the combed material is sent to a section that is capable of forming the combed cotton in the form of a sliver.
  • the or each comb 6 is provided with at least one notch 9, which is capable of emitting a jet of compressed air, but preferably with a plurality of notches 9 so as to divide the air jet into a plurality of separate and closely spaced jets.
  • the combing machine according to the present invention fully achieves the intended aim and objects, since it allows to replace the conventional circular comb with a straight pneumatic comb that achieves a number of advantages in the combing of the cotton tufts and in the operation for replacing said comb.
  • the materials used may be any according to requirements and to the state of the art.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
EP20050000383 2004-01-12 2005-01-11 Dispositif de peignage avec un peigne amélioré, en particulier pour coton et des autre fibres Not-in-force EP1553218B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI20040020 ITMI20040020A1 (it) 2004-01-12 2004-01-12 Pettinatrice con pettine perfezionato particolarmente per cotone e altre fibre
ITMI20040020 2004-01-12

Publications (2)

Publication Number Publication Date
EP1553218A1 true EP1553218A1 (fr) 2005-07-13
EP1553218B1 EP1553218B1 (fr) 2007-03-07

Family

ID=34587001

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20050000383 Not-in-force EP1553218B1 (fr) 2004-01-12 2005-01-11 Dispositif de peignage avec un peigne amélioré, en particulier pour coton et des autre fibres

Country Status (3)

Country Link
EP (1) EP1553218B1 (fr)
DE (1) DE602005000634T8 (fr)
IT (1) ITMI20040020A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3103041A (en) * 1960-05-18 1963-09-10 Whitin Machine Works Fringe control blade for combing machine
EP0351443A1 (fr) * 1988-07-21 1990-01-24 Staedtler & Uhl Plaque à dents, notamment peigne rectiligne pour machines préparant des textiles et procédé pour nettoyer cette plaque
FR2727986A1 (fr) * 1994-12-13 1996-06-14 Schlumberger Cie N Dispositif pour enfoncer les fibres textiles dans le peigne circulaire d'une peigneuse rectiligne
US20030019079A1 (en) * 2000-02-19 2003-01-30 Peter Gruber Top comb for a combing machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3103041A (en) * 1960-05-18 1963-09-10 Whitin Machine Works Fringe control blade for combing machine
EP0351443A1 (fr) * 1988-07-21 1990-01-24 Staedtler & Uhl Plaque à dents, notamment peigne rectiligne pour machines préparant des textiles et procédé pour nettoyer cette plaque
FR2727986A1 (fr) * 1994-12-13 1996-06-14 Schlumberger Cie N Dispositif pour enfoncer les fibres textiles dans le peigne circulaire d'une peigneuse rectiligne
US20030019079A1 (en) * 2000-02-19 2003-01-30 Peter Gruber Top comb for a combing machine

Also Published As

Publication number Publication date
DE602005000634T2 (de) 2007-11-22
DE602005000634D1 (de) 2007-04-19
EP1553218B1 (fr) 2007-03-07
ITMI20040020A1 (it) 2004-04-12
DE602005000634T8 (de) 2008-04-30

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