EP0192835A1 - Dispositif pour la détection continue de la masse d'une bande de fibres - Google Patents

Dispositif pour la détection continue de la masse d'une bande de fibres Download PDF

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Publication number
EP0192835A1
EP0192835A1 EP85115578A EP85115578A EP0192835A1 EP 0192835 A1 EP0192835 A1 EP 0192835A1 EP 85115578 A EP85115578 A EP 85115578A EP 85115578 A EP85115578 A EP 85115578A EP 0192835 A1 EP0192835 A1 EP 0192835A1
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EP
European Patent Office
Prior art keywords
roller
rollers
movable roller
plane
movable
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
EP85115578A
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German (de)
English (en)
Other versions
EP0192835B1 (fr
Inventor
Peter Oswald
Viktor Pietrini
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
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Filing date
Publication date
Application filed by Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Publication of EP0192835A1 publication Critical patent/EP0192835A1/fr
Application granted granted Critical
Publication of EP0192835B1 publication Critical patent/EP0192835B1/fr
Expired 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
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/14—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements
    • D01H13/22—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements responsive to presence of irregularities in running material
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G23/00—Feeding fibres to machines; Conveying fibres between machines
    • D01G23/06—Arrangements in which a machine or apparatus is regulated in response to changes in the volume or weight of fibres fed, e.g. piano motions
    • 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
    • D01H5/32—Regulating or varying draft
    • D01H5/38—Regulating or varying draft in response to irregularities in material ; Measuring irregularities

Definitions

  • the invention relates to a device for continuously determining the mass of a sliver according to the preamble of the first claim.
  • German draft specification No. 1265631 discloses a drafting system in which a fiber sliver is guided between a stationary and driven roller and a movable and towed roller that can be pressed against it.
  • a pulse generator which is not further described, touches the movable roller and, through the movements of this roller, produces a signal which is forwarded to a control system in order to change the speed of the driven roller accordingly.
  • the present invention is therefore based on the object of measuring the strip cross-section, as far as possible, free of interference. to get the tape mass.
  • the object was achieved by the features listed in the characterizing part of the first claim.
  • a device for continuously determining the mass of a fiber sliver 1 comprises a pair of measuring rolls, consisting of a driven roll 2 and a dragged by it, i.e. roller 3 driven by friction.
  • Such rollers as shown in the figures, are referred to as stepped rollers and interlock with one another (see FIG. 2) in such a way that one for measuring the sliver cross-section or. of the sliver mass defined space 4 arises.
  • the driven roller 2 is driven by means of a shaft 5 connected to it in a rotationally fixed manner, which is mounted on both sides of the roller 2 in a bearing 6 and 7, respectively, with practically no play.
  • the bearings 6 and 7 are - in turn attached to a base plate 8.
  • the towed roller 3 is connected in a rotationally fixed manner to an axis 9 which can be rotated practically without play on both sides of the roller 3 in a bearing 10 or 11. is stored.
  • This drag roller 3 is, respectively, to the cross section. to be able to measure the mass of the sliver located in said space 4, movable in the arrow directions M.
  • the two bearings 10 and 11 according ig means of leaf springs 12 having a fixed to the base plate 8 supports 13 (in F. 1 only the support for the bearing 11 is visible) connected.
  • These leaf springs arranged as spring struts are on the one hand in the conveying direction F (FIG. 1) of the F aserbandes 1 buckling, and in the said directions of movement M subjected to bending stress and have to be dimensioned so that buckling is avoided.
  • the sliver In order to be able to measure the sliver cross-section without air inclusion in room 4, the sliver must be compressed in this room. In order to obtain this compression, a pressure is exerted against the bearings 10 and 11 of the towed roller 3 by means of a compression spring 14 with a predetermined force, so that the roller 3 is pressed against the roller 2.
  • the pressure generated in the aforementioned space 4 not only creates forces in the bending direction of the leaf springs 12, i.e. perpendicular to the axes of rotation of measuring rollers 2 and 3, but also parallel to these axes of rotation, i.e. in the directions S and T shown in FIG. 2.
  • the force in the direction T is emitted from the driven roller 2 via the shaft 5 onto the bearings 6 and 7, so that the driven roller is displaced as a result of the fixed and non-elastic arrangement of these bearings 2 cannot be pushed away from the force in the direction T.
  • the section modulus perpendicular to the section modulus in the bending direction is, in proportion, much larger than that in the bending direction, ie the leaf springs 12 yield in the direction of movement M, but are very stiff in the mentioned direction of pressure S.
  • the support of the bearings 10 and 11 on the leaf springs 12 therefore has the advantage that the movable roller 3 cannot be pushed away in the direction S by the force.
  • the bearing 10 can nevertheless be provided with a bracket 101 of length L and the associated carrier 13 with a bracket 131 with the same outreach.
  • one of the two leaf springs used for this bearing and designated by 121 can be provided in a region in which the force in the direction S exerts essentially no moment on the movable roller 3.
  • the length L can be selected to be smaller or larger depending on the selection of the resistance moments of the leaf spring 121.
  • a sensor 18 with its touch surface 19 (FIG. 3) is arranged in a contactless manner relative to a peripheral surface 20 of the towed roller 3 in such a way that the center of this touch surface is essentially in an imaginary position ,
  • the axis of rotation (not marked) of the driven roller 2 and the towed roller 3 containing plane E (Fig. 1 and 3).
  • the sensor 18 is, for example, an eddy current sensor known per se and is fastened to the base plate 8 by means of a stand 21 and connected to the associated converter (not shown) by a connecting cable 22.
  • the stand is essentially Lichen perpendicular to the base plate 8.
  • the sliver 1 is moved by the compression of the compression springs 14 in space 4 by means of the driven roller 2 in the conveying direction F, which leads to movements of the towed roller 3 in the directions M when the sliver mass changes.
  • a distance A existing in the aforementioned fractions of a millimeter between the sensing surface 19 and the scanned peripheral surface 20 of the towed roller is changed, which is determined by the sensor 18 and passed on to the convertor as a voltage signal and then evaluated as a control signal, for example by the Control the speeds of drafting rollers or the speed of a feed roller at the entrance of a card.
  • the contactless scanning of the linear movements of the towed roller 3 in said plane E has the advantage that changes in mass of the fiber structure can be detected by the sensor in an analog linearity.
  • FIGS. 4 and 5 In order to largely avoid incorrect measurements due to different thermal expansion of the elements used, the variant shown with FIGS. 4 and 5 can be used. Elements of FIGS. 1 to 3 are provided with the same reference numbers.
  • This variant offers the advantage that a different thermal expansion of the base plate compared to the rollers has practically no influence in the favorable arrangement or no influence on the distance A between the peripheral surface 20 and the touch surface 19 in the maximum arrangement.
  • leaf springs it is also possible to choose flat steel profiles with appropriate buckling strength and elasticity and with a sufficient section modulus to counteract the force in the S direction.
  • a funnel 23 known per se is used to guide the sliver 1 into the space 4 between the rollers 2 and 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Preliminary Treatment Of Fibers (AREA)
EP85115578A 1985-02-15 1985-12-07 Dispositif pour la détection continue de la masse d'une bande de fibres Expired EP0192835B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH71985 1985-02-15
CH719/85 1985-02-15

Publications (2)

Publication Number Publication Date
EP0192835A1 true EP0192835A1 (fr) 1986-09-03
EP0192835B1 EP0192835B1 (fr) 1989-04-26

Family

ID=4193583

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85115578A Expired EP0192835B1 (fr) 1985-02-15 1985-12-07 Dispositif pour la détection continue de la masse d'une bande de fibres

Country Status (5)

Country Link
US (1) US4646387A (fr)
EP (1) EP0192835B1 (fr)
JP (1) JPH07119756B2 (fr)
DE (1) DE3569760D1 (fr)
IN (1) IN166675B (fr)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3826861A1 (de) * 1987-08-28 1989-03-16 Textima Veb K Vorrichtung zum kontinuierlichen ermitteln der masse eines faserbandes mit zwei gegeneinander pressbaren walzen
US4987648A (en) * 1988-04-19 1991-01-29 Rieter Machine Works, Ltd. Combing machine with workstations having a monitoring unit at each workstation
EP0417614A1 (fr) * 1989-09-15 1991-03-20 Maschinenfabrik Rieter Ag Appareil pour comprimer continuellement ou pour contrôler la masse d'un ruban de fibres
EP0431481A1 (fr) * 1989-12-04 1991-06-12 Maschinenfabrik Rieter Ag Méthode pour déterminer en continu la finesse des fibres dans des fils et appareil pour la mise en oeuvre de cette méthode
WO1991016595A1 (fr) * 1990-04-19 1991-10-31 Schubert & Salzer Maschinenfabrik Aktiengesellschaft Dispositif de mesure
EP0455014A1 (fr) * 1990-04-27 1991-11-06 Maschinenfabrik Rieter Ag Appareil pour la détection de la masse ou dimensions d'un ruban de fibres
EP0544425A1 (fr) * 1991-11-26 1993-06-02 Hollingsworth (U.K.) Limited Pot tournant
US5289381A (en) * 1989-12-04 1994-02-22 Maschinenfabrik Rieter Ag Method and apparatus for continuously determining the fineness of fibers in slivers
EP0617149A1 (fr) * 1993-02-25 1994-09-28 SPINNEREIMASCHINENBAU LEISNIG GmbH Procédé pour égaliser de rubans de fibres textiles
EP0864674A2 (fr) * 1997-03-14 1998-09-16 Rieter Ingolstadt Spinnereimaschinenbau AG Dispositif pour la production ou le traitement ultérieur de mèche
CN101654819A (zh) * 2008-08-19 2010-02-24 特鲁菲舍尔股份有限公司及两合公司 用在纺纱间准备机上的设备
DE102009050264A1 (de) 2009-10-21 2011-05-12 TRüTZSCHLER GMBH & CO. KG Vorrichtung an einer Spinnereivorbereitungsmaschine, z.B. Karde, Strecke, Kämmmaschine oder Flyer, mit einem Tastwalzenpaar
DE10327469B4 (de) * 2002-07-06 2016-03-10 Rieter Ingolstadt Gmbh Bandquerschnittsmesseinrichtung

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3619248A1 (de) * 1986-06-07 1987-12-10 Zinser Textilmaschinen Gmbh Verfahren zur steuerung des verzugs eines faserbandes bei einer textilmaschine
US4947520A (en) * 1987-10-13 1990-08-14 John D. Hollingsworth On Wheels, Inc. Feed roll sensor for a textile carding machine
US4839944A (en) * 1987-10-13 1989-06-20 John D. Hollingsworth On Wheels, Inc. Feed roll sensor for a textile carding machine
US5010494A (en) * 1988-09-09 1991-04-23 North Carolina State University Method and apparatus for detecting mechanical roll imperfections in a roller drafting system
DE3834110A1 (de) * 1988-10-07 1990-04-12 Truetzschler & Co Verfahren und vorrichtung zur bewegungserfassung von textilfaserbaendern, z. b. kardenbaendern
CH681310A5 (fr) * 1990-05-30 1993-02-26 Zellweger Uster Ag
US5146651A (en) * 1990-12-21 1992-09-15 E. I. Du Pont De Nemours And Company Process and apparatus for tow cross-section measurement and control
JP3250204B2 (ja) * 1993-09-14 2002-01-28 豊和工業株式会社 カードの短周期斑制御装置
DE19500189B4 (de) * 1995-01-05 2006-09-14 Rieter Ingolstadt Spinnereimaschinenbau Ag Verfahren zur Anpressung eines Tastorgans an einen Faserverband in einer Bandführung und Vorrichtung zu deren Erzeugung
DE102005023992A1 (de) * 2005-05-20 2006-11-23 TRüTZSCHLER GMBH & CO. KG Vorrichtung an einer Spinnereivorbereitungsmaschine, z.B. Karde, Krempel, Strecke, Kämmmaschine o.dgl., zum Ermitteln der Masse und/oder Masseschwankungen eines Fasermaterials, z.B. mindestens ein Faserband, Faservlies o.dgl., aus Baumwolle, Chemiefasern o. dgl.
DE102008038392A1 (de) * 2008-08-19 2010-02-25 TRüTZSCHLER GMBH & CO. KG Vorrichtung für eine oder an einer Spinnereivorbereitungsmaschine, die ein Streckwerk zum Verstrecken von strangförmigem Fasermaterial aufweist
CH717103A1 (de) 2020-01-31 2021-08-16 Uster Technologies Ag Verfahren zur Qualitätsüberwachung in einem Spinnereivorbereitungsprozess.

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB957625A (en) * 1961-07-14 1964-05-06 Cotton Silk & Man Made Fibres Scutcher control mechanism
CH490526A (de) * 1969-07-09 1970-05-15 Rieter Ag Maschf Verfahren zum kontinuierlichen Dosieren von Fasermaterial zur Vorlage an Spinnereimaschinen
FR2031012A5 (fr) * 1969-06-24 1970-11-13 Zinser Textilmaschinen Gmbh
FR2211549A1 (fr) * 1972-12-05 1974-07-19 Rieter Ag Maschf
GB2061338A (en) * 1979-09-27 1981-05-13 Elitex Zavody Textilniho Method of and Device for Compensating Errors in Sliver Density Control in Textile Machines

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1265631B (de) * 1958-10-07 1968-04-04 Cotton Silk & Man Made Fibres Vorrichtung zum Vergleichmaessigen von Fasergut in einer Schlagmaschine oder einem Regulierstreckwerk fuer Spinnereimaschinen
US3709406A (en) * 1970-10-14 1973-01-09 Rieter Ag Maschf Method and apparatus for producing an even continuous layer of fibers
US3796094A (en) * 1972-09-25 1974-03-12 Eastman Kodak Co Method and apparatus for continuously detecting abnormal cross-sectional areas in running tow
DE2510451C3 (de) * 1975-03-11 1984-04-26 Agfa-Gevaert Ag, 5090 Leverkusen Vorrichtung zum mechanischen Abtasten von lokalen Verdickungen in Papier- und Folienbahnen
AT334118B (de) * 1975-07-15 1976-12-27 Gao Ges Automation Org Messvorrichtung zum messen von dickenunterschieden in aufzeichnungstragern, wie banknoten u.dgl.
JPS5414260A (en) * 1977-07-05 1979-02-02 Aron Kasei Kk Thickness meter
JPS5597506U (fr) * 1978-12-25 1980-07-07
JPS55165840A (en) * 1979-06-13 1980-12-24 Laurel Bank Mach Co Ltd Double feed detector of paper carrier
DE3205776C3 (de) * 1982-02-18 1996-06-13 Truetzschler Gmbh & Co Kg Verfahren und Vorrichtung zur Regulierung der einer Krempel zuzuführenden Fasermenge

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB957625A (en) * 1961-07-14 1964-05-06 Cotton Silk & Man Made Fibres Scutcher control mechanism
FR2031012A5 (fr) * 1969-06-24 1970-11-13 Zinser Textilmaschinen Gmbh
CH490526A (de) * 1969-07-09 1970-05-15 Rieter Ag Maschf Verfahren zum kontinuierlichen Dosieren von Fasermaterial zur Vorlage an Spinnereimaschinen
FR2211549A1 (fr) * 1972-12-05 1974-07-19 Rieter Ag Maschf
GB2061338A (en) * 1979-09-27 1981-05-13 Elitex Zavody Textilniho Method of and Device for Compensating Errors in Sliver Density Control in Textile Machines

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3826861A1 (de) * 1987-08-28 1989-03-16 Textima Veb K Vorrichtung zum kontinuierlichen ermitteln der masse eines faserbandes mit zwei gegeneinander pressbaren walzen
US4987648A (en) * 1988-04-19 1991-01-29 Rieter Machine Works, Ltd. Combing machine with workstations having a monitoring unit at each workstation
EP0417614A1 (fr) * 1989-09-15 1991-03-20 Maschinenfabrik Rieter Ag Appareil pour comprimer continuellement ou pour contrôler la masse d'un ruban de fibres
US5289381A (en) * 1989-12-04 1994-02-22 Maschinenfabrik Rieter Ag Method and apparatus for continuously determining the fineness of fibers in slivers
EP0431481A1 (fr) * 1989-12-04 1991-06-12 Maschinenfabrik Rieter Ag Méthode pour déterminer en continu la finesse des fibres dans des fils et appareil pour la mise en oeuvre de cette méthode
WO1991016595A1 (fr) * 1990-04-19 1991-10-31 Schubert & Salzer Maschinenfabrik Aktiengesellschaft Dispositif de mesure
US5157810A (en) * 1990-04-27 1992-10-27 Maschinenfabrik Rieter Ag Apparatus for measuring the mass of a sliver
EP0455014A1 (fr) * 1990-04-27 1991-11-06 Maschinenfabrik Rieter Ag Appareil pour la détection de la masse ou dimensions d'un ruban de fibres
EP0544425A1 (fr) * 1991-11-26 1993-06-02 Hollingsworth (U.K.) Limited Pot tournant
US5339495A (en) * 1991-11-26 1994-08-23 Hollingsworth (U.K.) Ltd. Coiler and autoleveller
EP0617149A1 (fr) * 1993-02-25 1994-09-28 SPINNEREIMASCHINENBAU LEISNIG GmbH Procédé pour égaliser de rubans de fibres textiles
EP0864674A2 (fr) * 1997-03-14 1998-09-16 Rieter Ingolstadt Spinnereimaschinenbau AG Dispositif pour la production ou le traitement ultérieur de mèche
EP0864674A3 (fr) * 1997-03-14 1999-05-12 Rieter Ingolstadt Spinnereimaschinenbau AG Dispositif pour la production ou le traitement ultérieur de mèche
DE10327469B4 (de) * 2002-07-06 2016-03-10 Rieter Ingolstadt Gmbh Bandquerschnittsmesseinrichtung
CN101654819A (zh) * 2008-08-19 2010-02-24 特鲁菲舍尔股份有限公司及两合公司 用在纺纱间准备机上的设备
DE102008049363A1 (de) * 2008-08-19 2010-02-25 TRüTZSCHLER GMBH & CO. KG Vorrichtung für eine oder an einer Spinnereivorbereitungsmaschine, die ein Streckwerk zum Verstrecken von strangförmigem Fasermaterial aufweist
DE102008049363B4 (de) 2008-08-19 2022-10-13 Trützschler Group SE Vorrichtung für eine oder an einer Spinnereivorbereitungsmaschine, die ein Streckwerk zum Verstrecken von strangförmigem Fasermaterial aufweist
DE102009050264A1 (de) 2009-10-21 2011-05-12 TRüTZSCHLER GMBH & CO. KG Vorrichtung an einer Spinnereivorbereitungsmaschine, z.B. Karde, Strecke, Kämmmaschine oder Flyer, mit einem Tastwalzenpaar

Also Published As

Publication number Publication date
US4646387A (en) 1987-03-03
JPS61187658A (ja) 1986-08-21
IN166675B (fr) 1990-06-30
DE3569760D1 (en) 1989-06-01
EP0192835B1 (fr) 1989-04-26
JPH07119756B2 (ja) 1995-12-20

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