EP0035977A2 - Strecke mit einem rotierenden Kammstreckwerk für Textilfaservliese - Google Patents

Strecke mit einem rotierenden Kammstreckwerk für Textilfaservliese Download PDF

Info

Publication number
EP0035977A2
EP0035977A2 EP81830028A EP81830028A EP0035977A2 EP 0035977 A2 EP0035977 A2 EP 0035977A2 EP 81830028 A EP81830028 A EP 81830028A EP 81830028 A EP81830028 A EP 81830028A EP 0035977 A2 EP0035977 A2 EP 0035977A2
Authority
EP
European Patent Office
Prior art keywords
shaft
combs
compressed air
needles
drawing frame
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
EP81830028A
Other languages
English (en)
French (fr)
Other versions
EP0035977A3 (en
EP0035977B1 (de
Inventor
Angelo Bianchi
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 OFFICINE MECCANICHE E FONDERIE SpA
Original Assignee
SANT'ANDREA NOVARA OFFICINE MECCANICHE E FONDERIE 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 OFFICINE MECCANICHE E FONDERIE SpA filed Critical SANT'ANDREA NOVARA OFFICINE MECCANICHE E FONDERIE SpA
Publication of EP0035977A2 publication Critical patent/EP0035977A2/de
Publication of EP0035977A3 publication Critical patent/EP0035977A3/en
Application granted granted Critical
Publication of EP0035977B1 publication Critical patent/EP0035977B1/de
Expired legal-status Critical Current

Links

Images

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
    • D01H5/02—Gill boxes or other drafting machines employing fallers or like pinned bars
    • 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
    • D01H5/60—Arrangements maintaining drafting elements free of fibre accumulations
    • D01H5/66—Suction devices exclusively

Definitions

  • the present invention relates to a drawing frame for webs of textile fibres provided with a rotary comb head, including a base and a pair of counter-rotating shafts with horizontal axes supported by the base in a superimposed arrangement, each of the said two shafts rotatably driving a pair of axially-spaced comb-carrier discs provided with substantially radial slots in which are slidably engaged a circumferential series of needle-carrier bars or axial combs the ends of which engage in corresponding shaped guide tracks rigidly connected to the base, the combs associated with the two shafts defining two sets of needles intersecting in the treatment region for the web of textile fibres, the head further being provided with a cleaner device for cleaning the combs of the two sets of needles.
  • the object of the present invention is to obviate these disadvantages.
  • the present invention provides a drawing frame for webs of textile fibres, characterised in that the cleaner device for the rotary comb head comprises a source of compressed air, means for supplying the compressed air to the interior of each set of needles, and means for directing the compressed air between the combs of each set of needles in the form of an elongate jet directed outwardly in a substantially radial, predetermined direction so that, during the rotation of the shaft, the said jet of compressed air flows tangentially and successively over the surfaces of the combs of the set of needles.
  • the cleaner device for the rotary comb head comprises a source of compressed air, means for supplying the compressed air to the interior of each set of needles, and means for directing the compressed air between the combs of each set of needles in the form of an elongate jet directed outwardly in a substantially radial, predetermined direction so that, during the rotation of the shaft, the said jet of compressed air flows tangentially and successively over the surfaces of the combs of the set
  • each jet of compressed air is directed substantially parallel to the direction of displacement of the web of textile fibres to be treated and faces towards the output zone of the web.
  • the jets of compressed air extend parallel to the axes of the respective shafts of the head over a length substantially equal to the length of the parts of combs lying between the said comb-carrier discs.
  • the jets of compressed air act uniformly along the entire active part of each comb.
  • the means for supplying compressed air to the interior of each set of needles include valve means and programmable timer means for controlling the said valve means.
  • This characteristic makes it possible to regulate the operation of the cleaning device in dependence on the type of material treated by the machine.
  • each of the rotary shafts of the head is hollow and has an axial passage at one end adapted to put its hollow interior into communication with the said means for supplying compressed air;
  • the portion of each shaft between the respective comb-carrier discs supports a freely-rotatable, cylindrical, tubular casing interposed between the shaft and the combs and provided with a pair of annular, end heads provided with plain bearings in hermetically-sealed contact with the surface of the shaft;
  • the said casing has an axial slit formed along its lateral wall and communicating with the hollow interior of the shaft through apertures formed in the wall of the said shaft;
  • positioning means are provided for maintaining the said tubular casing, during the rotation of the shaft,ina fixed angular position in which the said axial slit is disposed in a substantially horizontal plane passing through the axis of the shaft.
  • the said positioning means are, to advantage, constituted by a ballast weight carried by the tubular casing.
  • the head 10 comprises essentially a pair of vertical support pillars 12 which serve to support a pair of superimposed shafts 14 for rotation about horizontal axes.
  • the shafts 14 are rotated in opposite senses by means of a motor and a conventional transmission not shown in the drawings.
  • Each of the shafts 14 supports, adjacent the pillars 12, a pair of comb-carrier discs 16 provided with corresponding, circumferential sets of substantially radial slots 18.
  • a plurality of needle-carrier bars, or combs, 20 disposed parallel to the axis of the shaft 14.
  • each comb 20 is constituted by a support bar 22 carrying, at is outer edge, a plurality of needles 24 which are slightly inclined to the plane of the bar 22.
  • the ends of the bar 22 of each comb 20 project outwardly of the comb-carrier discs 16 and engage slidably in corresponding shaped guide tracks 26 formed in the support pillars 12.
  • Each shaft is hollow and has an axial passage 28 at one end, shaded as a convergent-divergent venturi opening externally of the head 10.
  • a tubular, cylindrical casing 30 interposed between the shaft 14 and the support bar 22 of the combs 20.
  • Each casing 30 has a pair of annular heads 32 at its ends, each head bearing an annulus of thermoplastics material 34 in contact with the surface of the shaft 14.
  • the annuli 34 constitute plain bearings for supporting the casing 30 and are, moreover, ' adapted to achieve hermetic sealing of the hollow interior of the casing 30 with respect to the surface of the shaft 14.
  • each casing 30 has a semi-cylindrical upper portion 36 provided along ⁇ its axial edges with edge flanges 38,39 bent outwardly and substantially aligned in a horizontal plane.
  • the flange 38 which faces inwardly of the machine is coupled to one of the axial edges of a semi-cylindrical, lower portion.40 which completes the tubular casing 30.
  • the lower portion 40 is considerably thicker and, hence, considerably heavier than the upper portion 36.
  • the other axial edge of the lower portion 40 ends a short distance from the flange 39 of the upper portion 36 so as to define an axial slit 42 which extends for the entire length of the casing 30.
  • the axial slit 42 is maintained constantly in a fixed angular position, in which it is disposed in a substantially horizontal plane passing through the axis of the shaft 14, by gravity, even during rotation of the shaft 14.
  • the axial slit 42 on the basis of what has been said above, faces outwardly of the textile machine.
  • each casing 30 communicates with the interior of the respective shaft 14 through a series of holes 44 formed in the lateral wall of the shaft 14.
  • the venturi-shaped outer portion 28 of the axial passage of each shaft 14 is associated with a nozzle 46 disposed so as to form an injector 48 with the passage 28.
  • the nozzles 46 are connected to a compressed-air supply circuit indicated in its entirety by 50.
  • the circuit 50 includes a source 52 of compressed air connected, through a monitoring valve 53, to a filter and regulator device 54 associated with a manometer 56.
  • the filter- regulator device 54 is connected, through a non- return valve 58, to an air accumulator 60.
  • the accumulator 60 is connected to the two nozzles 46 with the interposition of a solenoid valve 62 controllable by means of a programmable timer 64.
  • the entrainment assembly 68 Adjacent the working zone of the head 10, on the input side for the textile fibre web F, is an entrainment assembly 68.
  • the entrainment assembly 68 includes a pair of rotary cylinders 70 associated with a pressure roller 72, and has the function of improving the control of the web of fibres F in the feed.
  • the web of fibres F is fed in a substantially horizontal direction in the direction of arrow A, through the zone between the shafts 14 and the respective combs 20.
  • the shafts 14 are rotated in the senses indicated by the arrows B and drive the combs 20 which thus move along the paths defined by the shapes of the guide tracks 26.
  • the rotary combs 20 thus define two sets of needles which intersect in the zone of passage of the web of textile fibres F and penetrate the web F successively, effecting, in combination with a drawing assembly 100 at the outlet, a drawing action.
  • the pneumatic circuit 50 supplies compressed air to the two nozzles 46 through the solenoid valve 62.
  • the solenoid valve 62 may be maintained constantly in an open position or may be controlled to open and close. in a predetermined cycle by means of the programmable timer 64.
  • the compressed air leaving each nozzle 46 passes through the axial passage 28 into the hollow interior of the respective shaft 14. Thanks to the conformation of the axial passages 28 and the disposition of the nozzles 46, the compressed air leaving each nozzle draws a current of air from the external environment into the interior of the respective shaft 14. The air then passes through the holes 44 in the wall of the shaft 14 and into the tubular casing 30.
  • the air then leaves the casing 30 through the axial slit 42, thus creating an elongate, laminar jet directed radially outwardly.
  • the casing 30, and hence the axial slit 42 are maintained in a fixed angular position due to the presence of the ballast constituted by the lower cylindrical portion 40 of the casing.
  • the jet of air flows tangentially over the combs 20 which are located successively in correspondence with the slit 42 and detaches and separates waste material which accumulates at the base of the needles 24.
  • An integral suction system known per se and not illustrated in the drawings, collects this material and discharges it outside the machine.
  • the conformation of the axial slits 42 and their positioning with respect to the rotary ' combs 20 allows an efficient cleaning action to be achieved with the minimum consumption of compressed air.
  • the consumption of air is further reduced by the presence of the injectors 48 constituted by the axial passages 28 and the respective nozzles 46.
  • the jets of air which, as indicated previously,-- are directed parallel to the direction of displacement A of the web of textile fibres F and face towards the output zone of the web, do not disturb the web of fibres F at the inlet to and at the exit from the head 10 to any extent.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
EP81830028A 1980-03-07 1981-02-26 Strecke mit einem rotierenden Kammstreckwerk für Textilfaservliese Expired EP0035977B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT6736180 1980-03-07
IT67361/80A IT1129411B (it) 1980-03-07 1980-03-07 Stiratoio per nastri di fibre tessili provvisto di una testa a pettini rotanti

Publications (3)

Publication Number Publication Date
EP0035977A2 true EP0035977A2 (de) 1981-09-16
EP0035977A3 EP0035977A3 (en) 1981-09-23
EP0035977B1 EP0035977B1 (de) 1985-01-23

Family

ID=11301753

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81830028A Expired EP0035977B1 (de) 1980-03-07 1981-02-26 Strecke mit einem rotierenden Kammstreckwerk für Textilfaservliese

Country Status (4)

Country Link
EP (1) EP0035977B1 (de)
DE (1) DE3168417D1 (de)
ES (1) ES8207240A1 (de)
IT (1) IT1129411B (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2551772A1 (fr) * 1983-09-12 1985-03-15 Sant Andrea Novara Officine Tete de peignage a entrainement par chaine pour rubans de fibres textiles, particulierement pour des bancs d'etirage
EP0311544A1 (de) * 1987-10-09 1989-04-12 N. SCHLUMBERGER & CIE, S.A. Vorrichtung zum fortlaufenden Reinigen der Nadeln eines Nadelstabstreckwerkes für Textilfasern
WO1993006276A1 (de) * 1991-09-23 1993-04-01 Grossenhainer Textilmaschinenbau Gmbh Nadelstabstreckwerk
DE4206671A1 (de) * 1992-02-28 1993-09-02 Grossenhainer Textilmaschinen Nadelstabstreckwerk
FR2794137A1 (fr) * 1999-05-31 2000-12-01 Schlumberger Cie N Tete d'etirage pour machines d'etirage pourvue d'un dispositif d'obturation automatique de conduits pneumatiques
CN111101244A (zh) * 2018-10-25 2020-05-05 里特机械公司 压缩机组、紧压罗拉单元和牵伸系统

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE907512C (de) * 1951-10-02 1956-08-23 H Heitmueller Dr Einrichtung zum Schutze gegen Verschmutzen des Streckfeldes sowie der Fuehrungs- und Antriebsglieder der Nadelstaebe von Strecken
DE920717C (de) * 1952-04-29 1956-09-13 Hanseatische Motoren Ges M B H Vorrichtung zum Vermeiden der Faserbandstauung an Streckzylindern von Doppelnadelstabstrecken
CH399262A (de) * 1963-02-25 1966-03-31 Saco Lowell Shops Streckwerk für Faserlunten
US3846618A (en) * 1972-03-09 1974-11-05 Air Knife Inc Electric heating apparatus for removing textile waste material
DE2812743A1 (de) * 1978-03-23 1979-09-27 Ltg Lufttechnische Gmbh Textilmaschine

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2551772A1 (fr) * 1983-09-12 1985-03-15 Sant Andrea Novara Officine Tete de peignage a entrainement par chaine pour rubans de fibres textiles, particulierement pour des bancs d'etirage
DE3425799A1 (de) * 1983-09-12 1985-03-28 Sant'Andrea Novara Officine Meccaniche e Fonderie S.p.A., Novara Kettenangetriebener kaemmkopf fuer bueschel von textilfasern
EP0311544A1 (de) * 1987-10-09 1989-04-12 N. SCHLUMBERGER & CIE, S.A. Vorrichtung zum fortlaufenden Reinigen der Nadeln eines Nadelstabstreckwerkes für Textilfasern
FR2621604A1 (fr) * 1987-10-09 1989-04-14 Schlumberger Cie N Dispositif de nettoyage permanent des aiguilles d'un systeme d'etirage a aiguilles pour fibres textiles
WO1993006276A1 (de) * 1991-09-23 1993-04-01 Grossenhainer Textilmaschinenbau Gmbh Nadelstabstreckwerk
DE4206671A1 (de) * 1992-02-28 1993-09-02 Grossenhainer Textilmaschinen Nadelstabstreckwerk
FR2794137A1 (fr) * 1999-05-31 2000-12-01 Schlumberger Cie N Tete d'etirage pour machines d'etirage pourvue d'un dispositif d'obturation automatique de conduits pneumatiques
CN111101244A (zh) * 2018-10-25 2020-05-05 里特机械公司 压缩机组、紧压罗拉单元和牵伸系统
CN111101244B (zh) * 2018-10-25 2022-11-25 里特机械公司 压缩机组、紧压罗拉单元和牵伸系统

Also Published As

Publication number Publication date
IT1129411B (it) 1986-06-04
ES500144A0 (es) 1982-09-01
EP0035977A3 (en) 1981-09-23
ES8207240A1 (es) 1982-09-01
IT8067361A0 (it) 1980-03-07
DE3168417D1 (en) 1985-03-07
EP0035977B1 (de) 1985-01-23

Similar Documents

Publication Publication Date Title
US5526557A (en) Teaseling and/or fluffing machine for fabric and knitwork with improved suction and cleaning
US3884028A (en) Apparatus for removing impurities from fibers
FI112099B (fi) Suihkutuslaitteisto
SU1405709A3 (ru) Система дл сухого формовани из частиц или волокна бумаги или другого материала
CA1051163A (en) Machine for forming lignocellulosic fiber mats
US4519222A (en) Device for smoothing garments
EP0035977B1 (de) Strecke mit einem rotierenden Kammstreckwerk für Textilfaservliese
EP0510508B1 (de) Vorrichtung zum Sammeln und Entfernen von Flockenstaub an eine Strickmaschine
JP2022513825A (ja) 噴流サクションボックスおよび噴流サクション法
EP0588343B1 (de) Vorrichtung und Methode zum Entfernen und Sammeln von Staub und Abfall für eine zweifonturige Strickmaschine
US3055038A (en) Traveling cleaning apparatus
EP0564714A1 (de) Strickmaschinen-Rundgatter
US3940825A (en) Cleaning machine for bobbins with waste slivers
CN213866885U (zh) 一种围巾起毛机
US3885272A (en) Pneumatic cleaning plant for drawing systems in spinning preparation machines and spinning machines
KR200337996Y1 (ko) 직물원단 먼지 제거장치
US6230368B1 (en) Device and process for cleaning web-squeezing rollers at output from a carding machine
US4554709A (en) Chain-driven comb head for slivers of textile fibres, particularly for drawing frames
US3486184A (en) Pulsation type traveling cleaners and the like
GB2175620A (en) Production of absorbent bodies
US2446840A (en) Fiber treating apparatus
US3966858A (en) Linear apparatus and method for high speed production of air-laid non-woven webs
US4032274A (en) Linear apparatus for high speed production of air-laid non-woven webs
USRE31802E (en) Roller gin and feed system incorporating the same
US4628677A (en) Friction spinning

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): BE DE FR GB

AK Designated contracting states

Designated state(s): BE DE FR GB

17P Request for examination filed

Effective date: 19811026

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): BE DE FR GB

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19850216

Year of fee payment: 5

REF Corresponds to:

Ref document number: 3168417

Country of ref document: DE

Date of ref document: 19850307

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19890226

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19890228

BERE Be: lapsed

Owner name: SANT'ANDREA NOVARA OFFICINE MECCANICHE E FONDERIE

Effective date: 19890228

GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19891027

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19891101

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST