EP0857799B1 - Flachkämmaschine mit einem verbesserten Ein- und Ausbausystem der Zylinderbürste - Google Patents

Flachkämmaschine mit einem verbesserten Ein- und Ausbausystem der Zylinderbürste Download PDF

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Publication number
EP0857799B1
EP0857799B1 EP19970101752 EP97101752A EP0857799B1 EP 0857799 B1 EP0857799 B1 EP 0857799B1 EP 19970101752 EP19970101752 EP 19970101752 EP 97101752 A EP97101752 A EP 97101752A EP 0857799 B1 EP0857799 B1 EP 0857799B1
Authority
EP
European Patent Office
Prior art keywords
shaft
brush
combing machine
rectilinear combing
circular comb
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
EP19970101752
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English (en)
French (fr)
Other versions
EP0857799A1 (de
Inventor
Carlo Ramasco
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.)
SANT'ANDREA NOVARA SpA
Original Assignee
SANT'ANDREA NOVARA SpA
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 SANT'ANDREA NOVARA SpA filed Critical SANT'ANDREA NOVARA SpA
Priority to EP19970101752 priority Critical patent/EP0857799B1/de
Priority to DE69712727T priority patent/DE69712727D1/de
Publication of EP0857799A1 publication Critical patent/EP0857799A1/de
Application granted granted Critical
Publication of EP0857799B1 publication Critical patent/EP0857799B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • D01G19/22—Arrangements for removing, or disposing of, noil or waste

Definitions

  • the present invention relates to a rectilinear combing machine of the type comprising:
  • the short waste fibres are separated from the long fibres by means of a circular comb and a straight comb.
  • the noil is then detached from the doffer and recovered by a system provided for that purpose.
  • the cylindrical brush has a faster speed of rotation than the circular comb so as to be able to clean the comb effectively.
  • the bristles covering the brush penetrate between the bars of the circular comb and are pushed rearwardly relative to the sense of rotation of the brush. After a certain period of operation, the bristles consequently remain deformed rearwardly and the efficiency of the brush is reduced to zero since the tips of the bristles of the covering no longer penetrate the circular comb and can no longer remove the noil from the needles of the bars.
  • the brush In known rectilinear combing machines, the brush is fitted on a shaft which has supports at both of its ends.
  • the brush cannot be removed from the shaft and is composed of two half-shells which are joined together to form a cylindrical body.
  • it is therefore necessary to stop the machine, slacken the device clamping the brush, remove the two half-shells which make up the cylindrical brush, turn both of the half-shells round and fit them back on the shaft and, finally, clamp the brush on the shaft.
  • it is also necessary to open all of the doors of the machine and to dismantle the front suction device situated in the region of the cylindrical brush. After the brush has been turned round, in order to start the machine again, it is necessary to re-fit the suction device, possibly to adjust the position of the brush relative to the circular comb, and to close the doors.
  • the object of the present invention is to provide a rectilinear combing machine of the type specified above which is not affected by the aforementioned problems and which achieves a reduction in the unproductive periods of the plant during the turning of the brushes.
  • this object is achieved by a rectilinear combing machine having the characteristics forming the subject of the main claim.
  • the support shaft of the brush is cantilevered on the structure of the machine and, instead of being constituted by two half-shells, the brush comprises a monolithic, tubular support body which can be fitted on the shaft from its distal end and can be removed from the shaft by a simple axial movement.
  • the brush is connected for rotation with the shaft by bayonet-type quick-coupling means.
  • the shaft also has centring means which centre the brush automatically simultaneously with its fitting on the shaft.
  • a rectilinear combing machine comprises, in generally known manner, a base 12 carrying two or three feed rollers 14 which supply a sliver of fibres to be combed in the direction indicated by the arrow 16.
  • the sliver to be combed passes through an array of needles or gill 18 downstream of which there is a nipper 20 comprising a lower jaw 22 and an upper jaw 24.
  • a straight comb 26 is disposed downstream of the nipper 20, with reference to the direction of advance of the sliver, and is movable to and fro between a raised position and a lowered position.
  • a detaching carriage 28 In front of the nipper 20 is a detaching carriage 28 which oscillates in the directions indicated by the double arrow 30 and comprises a pair of detaching rollers 32 which detach tufts of fibre causing them to pass through the straight comb 26.
  • the detaching carriage 28 comprises a tubular belt 34 on which the sliver of combed fibres is formed by partial superposition of the detached tufts of fibres.
  • a circular comb 36 is disposed beneath the nipper 20 and is mounted on a shaft 38 rotated in the sense indicated by the arrow 40.
  • the circular comb 36 is shaped as a circular sector and has a plurality of bars which, in use, carry out the combing in the head portions of the tufts held by the nipper 20.
  • the short and very short fibres which together collect between the bars of the circular comb 36 constitute the so-called noil.
  • a cylindrical brush 44 has a covering of bristles which, in use, penetrate to the base of the bars of the circular comb 36. The cylindrical brush 44 contrarotates relative to the circular comb 36 and rotates at a much faster speed than the latter.
  • the cylindrical brush 44 extracts the noil from the circular comb and transports it, carding it briefly, onto a doffer 46.
  • the doffer 46 is rotated continuously and the noil is detached therefrom by means of an oscillating rake-like comb 48.
  • the noil is produced on the rake-like comb 48 in the form of a continuous film which is recovered by a suction system, not shown.
  • the cylindrical brush 44 is composed substantially of a monolithic tubular body 50 to which the bristles 52 of the covering are anchored, in known manner.
  • the tubular body 50 is mounted on a shaft 54 cantilevered for rotation about its own longitudinal axis 56 on a fixed support 58.
  • the fixed support 58 is carried by the base of the machine and its position relative to the circular comb can be adjusted manually or automatically to compensate for the wear of the covering 52 of the cylindrical brush 44.
  • the shaft 54 is rotated by a driven shaft of the machine, by means of a chain of transmission elements.
  • the shaft 54 may have its own motor operable at a fixed speed or a variable speed. With autonomous drive of the shaft 54, a non-return device is also provided.
  • the shaft 54 projects in the manner of a cantilever from the fixed support 58 so that the brush 44 can be fitted or removed by a simple movement in an axial direction.
  • the distal end of the shaft 54 has a tapered portion 60.
  • the shaft 54 has a diameter slightly smaller than the inside diameter of the body 50 and has means for automatically centring the brush 44 relative to the axis of rotation 56.
  • These centring means include a frustoconical portion 62 formed integrally on the proximal end of the shaft 54.
  • the tubular body 50 of the brush 44 has a corresponding frustoconical portion 64 which bears axially against the portion 62, ensuring that the brush is centred at the proximal end of the shaft 54.
  • centring is ensured by a plurality of centring members 68 carried by the distal end of the shaft 54 and urged resiliently outwardly by respective springs 70 ( Figure 3).
  • the brush 44 and the shaft 54 are connected for rotation by quick-coupling means which operate in accordance with the general principle of a bayonet connection.
  • This bayonet connection comprises a coupling portion 72 formed integrally on the shaft 54 at its proximal end.
  • a plurality of open-ended helical grooves 74 is formed on the coupling portion 72.
  • Each end of the brush 44 has a plurality of radial pins 76 and 76' for engaging respective grooves 74.
  • the brush 44 is formed symmetrically with respect to a median plane perpendicular to its longitudinal axis so that it can be engaged on the shaft in two positions disposed at 180° to one another.
  • the helical grooves 74 are inclined in the opposite sense to the sense of rotation of the shaft, relative to a line parallel to the longitudinal axis of the shaft and oriented from the distal end to the proximal end of the shaft.
  • the pins 76 travel along the grooves 74 in the direction of insertion, they perform a rotation relative to the longitudinal axis 56 in the opposite sense to the sense of rotation of the shaft, indicated by the arrow 78 in Figure 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Claims (6)

  1. Flachkämmmaschine, die enthält:
    einen Rundkamm (36), um die Kopfbereiche von Faserbüscheln zu reinigen, die von einer Zange (20) gehalten werden,
    eine Zylinderbürste (44), die auf einer Tragwelle (54) abnehmbar befestigt ist, die sich relativ zum Rundkamm (36) in die entgegengesetzte Richtung dreht, wobei die Bürste (44) mit Borsten (52) überzogen ist, die im Betrieb zwischen die Stäbe des Rundkamms (36) eindringen und Fasern sowie Verunreinigungen entfernen, die sich auf dem Rundkamm (36) angesammelt haben, und
    einen Abzieher (46), um die von der Bürste gehaltenen Fasern zu entfernen,
    dadurch gekennzeichnet, dass die Welle (54), die die Bürste (44) trägt, im Chassis der Maschine freitragend gelagert ist, und dass die Bürste (44) einen monolithischen, rohrförmigen Körper (50) enthält, der so aufgebaut ist, dass er durch eine Bewegung in axialer Richtung auf die Welle (54) aufgesetzt oder von der Welle (54) entfernt werden kann.
  2. Flachkämmmaschine gemäß Anspruch 1, dadurch gekennzeichnet, dass der Körper (50) der Bürste (44) mit der Welle (54) über eine Bajonettverbindung (74, 76, 76') verbunden ist.
  3. Flachkämmmaschine gemäß Anspruch 2, dadurch gekennzeichnet, dass beide Enden des Körpers (50) der Bürste (44) mit radialen Zapfen (76, 76') versehen sind, um in schraubenförmige Rillen (74) einzugreifen, die in der Welle (54) am inneren Ende der Welle (54) ausgebildet sind.
  4. Flachkämmmaschine gemäß Anspruch 3, dadurch gekennzeichnet, dass die Rillen (74) entgegengesetzt zur Drehrichtung der Welle relativ zu einer Achse parallel zur Längsachse der Welle geneigt und vom freien Ende zum inneren Ende der Welle ausgerichtet sind.
  5. Flachkämmmaschine gemäß Anspruch 1, dadurch gekennzeichnet, dass das innere Ende der Welle (54), die die Bürste (44) trägt, einen kegelstumpfförmigen Teil (62) besitzt, an dem der Körper (50) der Bürste (44) axial aufliegt.
  6. Flachkämmmaschine gemäß Anspruch 1, dadurch gekennzeichnet, dass das freie Ende der Welle (54), die die Bürste (44) trägt, eine Vielzahl von Zentrierelementen (68) besitzt, die radial von der Welle vorspringen und federnd nach außen gedrückt werden.
EP19970101752 1997-02-05 1997-02-05 Flachkämmaschine mit einem verbesserten Ein- und Ausbausystem der Zylinderbürste Expired - Lifetime EP0857799B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP19970101752 EP0857799B1 (de) 1997-02-05 1997-02-05 Flachkämmaschine mit einem verbesserten Ein- und Ausbausystem der Zylinderbürste
DE69712727T DE69712727D1 (de) 1997-02-05 1997-02-05 Flachkämmaschine mit einem verbesserten Ein- und Ausbausystem der Zylinderbürste

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19970101752 EP0857799B1 (de) 1997-02-05 1997-02-05 Flachkämmaschine mit einem verbesserten Ein- und Ausbausystem der Zylinderbürste

Publications (2)

Publication Number Publication Date
EP0857799A1 EP0857799A1 (de) 1998-08-12
EP0857799B1 true EP0857799B1 (de) 2002-05-22

Family

ID=8226436

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19970101752 Expired - Lifetime EP0857799B1 (de) 1997-02-05 1997-02-05 Flachkämmaschine mit einem verbesserten Ein- und Ausbausystem der Zylinderbürste

Country Status (2)

Country Link
EP (1) EP0857799B1 (de)
DE (1) DE69712727D1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69804233T2 (de) * 1998-12-29 2002-11-21 N. Schlumberger & Cie., Guebwiller Montagevorrichtung einer zylindrischen Rundkamm-Reinigungsbürste mit automatischem Abnutzungsausgleich einer Kämmaschine
CH695357A5 (de) * 2002-01-29 2006-04-13 Wasag Tool Ag Anordnung zur lösbaren Befestigung eines drehbaren Werkzeuges an einem Antriebsdorn.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB250031A (en) * 1925-04-27 1926-04-08 Ellis Hopwood Improvements relating to brushes for clearing the noil from the comb circles of combing machines
GB530081A (en) * 1939-06-16 1940-12-04 Lawrence Lunn Improvements in or relating to cylindrical rotary brushes
FR2059884A5 (en) * 1970-07-31 1971-06-04 Spinnereimaschin Karl Ma Cleaning mechanism for comb rollers
DE58908650D1 (de) * 1989-07-24 1994-12-22 Palitex Project Co Gmbh Betriebsverfahren und Vorrichtung zum automatisierten Reinigen von Spulentöpfen und gegebenenfalls Ballonbegrenzern der Doppeldraht-Zwirnspindel einer Doppeldraht-Zwirnmaschine.

Also Published As

Publication number Publication date
DE69712727D1 (de) 2002-06-27
EP0857799A1 (de) 1998-08-12

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