WO2009039672A1 - Dispositif et procédé de mesure de la masse ou de l'épaisseur de rouleau à l'entrée d'une carde - Google Patents

Dispositif et procédé de mesure de la masse ou de l'épaisseur de rouleau à l'entrée d'une carde Download PDF

Info

Publication number
WO2009039672A1
WO2009039672A1 PCT/CH2008/000361 CH2008000361W WO2009039672A1 WO 2009039672 A1 WO2009039672 A1 WO 2009039672A1 CH 2008000361 W CH2008000361 W CH 2008000361W WO 2009039672 A1 WO2009039672 A1 WO 2009039672A1
Authority
WO
WIPO (PCT)
Prior art keywords
measuring
winding
thickness
roll
mass
Prior art date
Application number
PCT/CH2008/000361
Other languages
German (de)
English (en)
Inventor
François BAECHLER
Original Assignee
Uster Technologies Ag
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 Uster Technologies Ag filed Critical Uster Technologies Ag
Priority to CN2008801096004A priority Critical patent/CN101809210B/zh
Publication of WO2009039672A1 publication Critical patent/WO2009039672A1/fr

Links

Classifications

    • 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

Definitions

  • the present invention is in the field of spinning preparation and is preferably used for belt regulation of an open-loop card. It relates to an apparatus and a method for measuring the mass or thickness of a moving coil, according to the preambles of the independent claims.
  • a feed roller of the card serves as inlet measuring element for the winding thickness.
  • the incoming winding is guided between the feed roller and a feed table.
  • the feed roller extends over the entire width of a dining table and is movably suspended at both ends. She pushes the wrap by its own weight, by springs in the suspensions can be additionally strengthened, against the dining table. Thickness variations of the roll cause changes in the pitch and inclination of the feed roll with respect to the feed table. These changes are measured by two Wegaufhehmer, which are each mounted in the suspensions of the feed roller. It is assumed that the winding mass is proportional to the winding thickness.
  • the signals of the two Wegehhehmer be used for the control of the feed speed, whereby an open loop is formed.
  • Such devices have several disadvantages.
  • the measurement resolution along the width of the roll is limited due to the rigid roll: a single thick spot in the middle of the roll gives the same signal as a thickening along the entire winding width.
  • the measurement is very significant because of the large mass of the feed roller.
  • the measuring field is not clearly defined and has a relatively large length in the direction of travel, so that short fluctuations in the winding thickness can not be detected and the control is insufficient.
  • the measurement is also affected by disturbing influences such as the chain drive system of the feed roller.
  • EP-0'467'117 Al proposes several measuring rolls arranged along the winding width.
  • an electrical measuring device for detecting the position of the respective measuring roller is present.
  • the width of the roll is divided into sectors in which the winding thickness is measured independently.
  • the measuring field is also not clearly defined in this solution and has a relatively large length.
  • EP-0'467'117 A1 is simplified in that the deflection signals of all measuring rollers are added to a mechanical transmission element, for example a cable, and fed to a single, common displacement measuring system. This produces a signal that corresponds to the mean thickness of the coil. But even such a device has a complex, fault-prone mechanical structure.
  • the US-4,785,505 A discloses a generic device in which the feed roller is arranged stationary, but a partial surface of the dining table as
  • Inlet measuring device for the winding thickness is used.
  • the partial surface is designed as a measuring bar which extends over the entire width of the dining table.
  • the measuring beam is movably suspended at its ends. This results in an analogy to the device with movably suspended feed roller. Thickness variations of the coil cause changes in the pitch and inclination of the measuring beam with respect to the feed roller. These changes are measured by Wegauthehmer. Analogous are the disadvantages of the low measurement resolution and the large inertia.
  • the dining table has openings through which adjacent measuring elements extend.
  • Each measuring element is equipped with a movable sensing element, which in turn is connected to a Wegaufhehmer.
  • this device has the disadvantage of contamination by hanging on the openings cotton flakes and block the movements of the sensing elements.
  • the invention is based on the idea to use a virtually trackless force sensor for measuring the mass or thickness of a moving coil.
  • "Virtually weglos" in this document means that the stroke of a sensor connected to the sensor, which is in mechanical contact with the winding, is small in comparison with a height of a measuring gap in which the winding is compressed ten times smaller than the measuring gap height, so that there are no hollows in the feed table, in which wrapping material can remain hanging.
  • the surfaces of the probes are preferably arranged substantially flush with the guide surface of the dining table.
  • the inventive device for measuring the mass or thickness of a moving coil includes a measuring gap for receiving the coil and a mounted in the region of the measuring gap scanning, which is designed for mechanical contact with the winding and at least one force sensor for outputting an electrical signal, the is a measure of a mass or thickness of the coil.
  • the device according to the invention has a fixed dining table with a guide surface for guiding the roll.
  • the measuring gap extends over a width of the dining table.
  • the guide surface of the dining table is rigid at least in the region of the measuring gap.
  • the scanning device includes at least two arranged at different locations along the width of the dining table, inserted into the dining table, mutually independent buttons.
  • Each probe is associated with at least one force sensor for generating an electrical signal that is a measure of the mass or thickness of the coil at the location of the respective button. It is advantageous to provide the device according to the invention with guide elements which feed the entire wrapping material past dead points to the buttons.
  • the device according to the invention is preferably used for the belt regulation of a card according to the open-loop principle. For this purpose, z. B. an output signal of the device for controlling the feed speed can be used.
  • the winding is mechanically scanned.
  • a force exerted by the winding force is scanned practically weglos.
  • From the scan at least one electrical signal is derived, which is a measure of a mass or thickness of the coil.
  • the winding is fed to a measuring gap extending over a width of the roll.
  • the scanning takes place in the region of the measuring gap.
  • the reel is scanned in at least two different locations along its width in independent scans.
  • the scanning operations are carried out by means of a key embedded in a rigid base. From each scan, an electrical signal, which is a measure of the mass or thickness of the roll at the location of the particular scan, is generated.
  • the at least one electrical signal can be used to control the feed speed of the coil. From the at least one electrical signal and quality characteristics of the coil as the uniformity in width and / or in the longitudinal direction (direction) can be obtained.
  • the use of a virtually trackless force sensor to measure the mass or thickness of a moving coil may seem disadvantageous at first glance, because commercial force sensors have non-linear signal characteristics.
  • the electrical output signal of a force sensor is typically a power function (eg, a quadratic function) of the winding thickness.
  • this signal characteristic can be retroactively linearized in a digital signal processing step.
  • linearization either a characteristic typical for the respective sensor type can be used, or an individual characteristic can be recorded for each individual force sensor.
  • the characteristic is z. B. stored in the form of a table, preferably in an evaluation unit of the device or in a local Sensorauspithim.
  • the invention offers the following advantages over the prior art:
  • the practically smooth measuring device without hysteresis increases the measuring accuracy. • The measuring device is no longer influenced by the drive of the feed roller.
  • a shorter measuring length for example with a probe of only 12 mm length in the longitudinal direction, can detect shorter fluctuations in the winding thickness. As a result, a significant improvement in the control action of the open loop is achieved.
  • Figure 1 shows an embodiment of the inventive device (a) in a schematic side view, (b) in a plan view from the direction Ib-Ib and
  • FIG. 2 shows a scanning unit for a device according to the invention (a) in a longitudinal section, (b) in a plan view, (c) in a plan view and disclosed
  • Figure 3 shows the scanning unit of Fig. 2 in the installed state in a cross section.
  • FIG. 1 shows a first embodiment of the device 10 according to the invention.
  • the device 10 serves to measure the mass or thickness of a moving along a longitudinal direction x 5, the z. B. may be formed as a fleece or cotton wool. It is typically located at the inlet of a carding machine, of which a feed roller 1 and a licker-in 3 are shown.
  • the feed roller 1 is shown transparent in the plan view of Figure 1 (b) to provide a view of the underlying elements.
  • the device 10 comprises a stationary, rigid feed table 4 for guiding the roll 5.
  • the driven for rotation feed roller 1 feeds the winding 5 in the card.
  • the feed roller 1 extends substantially over the entire width (in the direction y) of the feed table 4.
  • An axis 2 of the feed roller 1 is fixed with respect to the feed table 4 and so spaced from a winding 5 leading surface of the feed table 4 that between a Jacket surface of the feed roller 1 and the guide surface of the feed table 4, a measuring gap 8 for receiving the roll 5 is formed, in which the winding 5 is compressed.
  • the measuring gap height (in the direction z) is preferably constant along the width (in the direction y) of the feed table 4.
  • a scanning device In the region of the measuring gap 8, a scanning device is mounted.
  • the scanner includes several, at different locations along the width (in direction y) of the
  • buttons 7 are z. B. formed as in a corresponding opening 6 in the dining table 4 embedded beam whose surface is substantially flush with the réellesoberfläclie the dining table 4.
  • the shape of the button surface is z. B. rectangular, the side length in the direction of movement x of the roll 5 is preferably as small as possible, so that the measuring field is well defined, and the side length transverse to the direction of movement x (in the direction y) is as large as possible to measure the entire winding width.
  • the number of buttons 7 is preferably at least two and can be arbitrarily large within the technically feasible and meaningful; in the embodiment of Figure 1, it is eight. The greater the number of buttons 7, the higher the resolution and the accuracy of the device 10.
  • the winding mass is determined by the measurement of the winding thickness.
  • Each button 7 is in mechanical contact with the winding 5 and is of this with a force down (ie away from the feed roller 1, in direction -z) pressed, which is the greater, the greater the winding thickness.
  • Each button 7 is at least one power sensor 19 for generating an electrical signal, which is a measure of the mass or thickness of the coil 5 at the location of the respective button 7, assigned.
  • the at least one associated Kraftensor 19 is operatively connected to the button 7.
  • the compression forces caused by the thickness changes of the roll 5 act on the button 7 and are transmitted to the at least one force sensor 19 associated with the button 7.
  • All force sensors 19 may, for. B. be mounted on a support beam 16, which in turn is mounted on the dining table 4.
  • As force sensors 19 z. B. Rugaufsacrificing the type UlA the company Hottinger Baldwin Messtechnik GmbH, D-64293 Darmstadt, Germany, are used. These are strain gauges (strain gauges) based on the piezoresistive effect.
  • piezoelectric, capacitive or voltage-optical force sensors could also be used.
  • the electrical output signal of a force sensor 19 is essentially a power function of the winding thickness. This signal characteristic can be retroactively linearized.
  • two force sensors 19 are associated with each push-button 7, one force sensor 19 being assigned to two adjacent push-buttons 7 at the same time; however, this is not mandatory.
  • the winding 5 is compressed in the measuring gap 8.
  • the force sensors 19 measure the compression forces exerted by the winding 5 virtually weglos. Therefore, it is possible and recommended, they firmly, z. B. on the support beam 16, and to seal the resulting when entering the button 7 in the dining table 4 joints with sealing material, eg. With silicone seal. Thus, not only a snagging of wrapping material 5 is avoided, but also prevents penetration of wrapping material 5 and other unwanted dirt particles under the guide surface of the feed table 4 and the force sensor 19.
  • An electrical output signal of the at least one force sensor 19 is on a
  • the analog electrical signals of all force sensors 19 can be processed in various ways to form an output signal of the device 10 according to the invention, preferably linked together.
  • the sensor signals can be fed together to a summation element which outputs a single sum output signal.
  • each sensor signal can be converted individually into a digital signal and the digital signals are fed to a digital arithmetic unit which, for example, linearises and / or sums them. Other analog or digital combinations of the sensor signals are possible, for example a weighted sum or averaging.
  • the individual sensor signals and / or the processed output signal processed in other ways, for. B. filtered.
  • the processed output signal is preferably used to control the pull-in speed of the coil 5.
  • the processed output signal can be fed to a controller of an open loop, which in turn regulates the rotational speed of the feed roller 1.
  • FIG. 2 shows a scanning unit 20, as can be used in a preferred embodiment of the device 10 according to the invention.
  • the scanning unit 20 includes a bar-shaped button 27 which is in mechanical contact with the winding 5 (see FIG. 1 (a)) and serves to receive compression forces exerted by the winding 5.
  • the compression forces are transmitted to at least one force sensor 29 by means of force transmission elements 23, for example four screws or bolts.
  • the scanning unit includes two force sensors 29 which are symmetrically positioned at one end of the elongate scanning unit 20.
  • Each force sensor 29 absorbs the pressure forces from the end of the pushbutton 27 located above it.
  • To absorb the pressure forces of the force sensor 29 includes a T-shaped, preferably made of metal tongue 24, press on the two transverse arms each two power transmission elements 23.
  • the longitudinal arm of the T-shaped tongue 24 is bent at a force, so that its upper side expands. The elongation is measured by means of one or more strain gauges 28.
  • Strain gauges 28 are preferably mounted in a connection area between the tongue 24 and a sensor substrate 25.
  • the sensor substrate 25 may, for. B. by means of two sensor mounting screws 26 may be attached to a sensor housing 21.
  • the output signals of the two force sensors 29 are connected via output lines 31, z. B. ribbon cable, a local Sensorauswertesciens 32 supplied.
  • the sensor evaluation circuit 32 may include, in addition to other circuit components, amplifiers for the sensor output signals with adjustment possibilities. It can be constructed on a printed circuit board, which is secured by means of second circuit mounting screws 33 on the sensor housing 21. Components of the sensor evaluation circuit 32 and / or the sensors 29, which are sensitive to moisture or contamination, can be poured into a suitable insulating material and thus protected. Output signals of the sensor evaluation circuit 32 can be conducted to the central evaluation unit via a sensor connection plug-in connector 34, which is accessible via an opening 35 on the underside of the sensor housing 21.
  • the sensor housing 21 may, for. B. made of metal. It is parallelepiped with, for example, the following masses: length (in x-direction) 15 mm, width (in y-direction) 125 mm, height (in z-direction) 11 mm. The upper surface of the cuboid is missing. It is replaced by the button 27. Joints between the button 27 and the sensor housing 21 are preferably sealed with a sealing ring 22 to prevent ingress of dirt and moisture into the interior of the sensor housing 21.
  • FIG. 3 shows an advantageous arrangement of the scanning unit 20 of FIG. 2 in a dining table 4 of a card.
  • This representation corresponds to that of Figure l (a); the (not shown here, see Fig. L (a)) winding 5 is thus fed from the left.
  • the measuring gap 8 between the dining table 4 and the feed roller 1 has a height of a few millimeters, z. B. 1-5 mm and preferably about 3 mm.
  • the height of the Measuring gap 8 is preferably variable. By changing the measuring gap height, the operating point of the scanning device 20 can be adjusted.
  • the stroke of the probe 27 is in the tenth of a millimeter range, that is at least ten times smaller than the height of the measuring gap. 8
  • the sensor housings 21 of the individual scanning units 20 are embedded in a groove 42 which extends transversely (in the y-direction) substantially over the entire width of the feed table 4. It can z. B. eight scanning units 20 may be provided with two sensors 29 each. Under the sensor housings 21 is a cable channel 42 for signal and energy transmission.
  • the present invention is not limited to the embodiments discussed above.
  • the dining table 4 has been illustrated as a support for the winding 5.
  • the dining table 4 but could also be above or to the side of the roll 5 and serve to guide it.
  • terms such as “above”, “below” or “underlay” are not to be understood as limiting in this document.

Landscapes

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

Abstract

L'invention concerne un dispositif (10) de mesure de la masse ou de l'épaisseur d'un rouleau déplacé (5), comportant une table d'alimentation rigide, fixe (4), destinée à guider le rouleau (5). Le rouleau (5) est comprimé dans une fente de mesure (8) délimitée par la table d'alimentation (4) et un cylindre d'alimentation (1). Dans la zone de la fente de mesure (8), plusieurs palpeurs (7) indépendants les uns des autres, disposés à divers emplacements (y) le long de la largeur de la table d'alimentation, sont intégrés à la table d'alimentation (4). Chaque palpeur (7) comporte un dynamomètre sans course (19) destiné à produire un signal électrique constituant une grandeur pour la masse ou l'épaisseur du rouleau (5) à l'endroit du palpeur respectif (7). Le dispositif (10) présente une résolution et une précision de mesure élevées, une grande dynamique et une faible longueur de mesure. Ledit dispositif peut être employé pour la régulation de bande d'une carde selon le principe du circuit de régulation ouvert.
PCT/CH2008/000361 2007-09-26 2008-08-26 Dispositif et procédé de mesure de la masse ou de l'épaisseur de rouleau à l'entrée d'une carde WO2009039672A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2008801096004A CN101809210B (zh) 2007-09-26 2008-08-26 一种用于测量梳棉机给料结构上棉卷重量和厚度的方法和装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH14952007 2007-09-26
CH1495/07 2007-09-26

Publications (1)

Publication Number Publication Date
WO2009039672A1 true WO2009039672A1 (fr) 2009-04-02

Family

ID=38917808

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH2008/000361 WO2009039672A1 (fr) 2007-09-26 2008-08-26 Dispositif et procédé de mesure de la masse ou de l'épaisseur de rouleau à l'entrée d'une carde

Country Status (2)

Country Link
CN (1) CN101809210B (fr)
WO (1) WO2009039672A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102041588A (zh) * 2009-10-21 2011-05-04 特鲁菲舍尔股份有限公司及两合公司 纺纱间准备机上的具有一对传感辊的装置

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102174722B (zh) * 2011-01-27 2013-06-26 北京经纬纺机新技术有限公司 并条机喂入棉条厚度数字检测方法及其系统
CN102392330B (zh) * 2011-08-24 2015-05-06 中原工学院 精梳机落棉率的测试方法及测试装置
US9347760B2 (en) 2013-03-15 2016-05-24 Bosch Automotive Service Solutions Llc Combination gauge tool
US11040368B2 (en) * 2017-02-08 2021-06-22 Toyota Jidosha Kabushiki Kaisha Manufacturing method of paste-layer-attached sheet and coating applicator

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB772739A (en) * 1954-05-17 1957-04-17 Brittains Ltd A method of and apparatus for continuously indicating the thickness of a moving fibrous web
US4506413A (en) * 1982-02-18 1985-03-26 Trutzschler Gmbh & Co. Kg Apparatus for regulating fiber quantities supplied to a textile machine
EP0261355A2 (fr) * 1986-09-25 1988-03-30 Trützschler GmbH & Co. KG Dispositif pour égaliser le ruban de fibres ou la toison de fibres sur une carde, carde (laine) ou similaire
US4742879A (en) * 1985-10-01 1988-05-10 Trutzschler Gmbh & Co. Kg Apparatus for measuring quantities of fiber fed to a textile machine
US4776065A (en) * 1986-03-14 1988-10-11 Trutzschler Gmbh & Co. Kg Fiber sliver or lap evening apparatus for a carding machine
US4777729A (en) * 1985-04-19 1988-10-18 Gao Gesellschaft Fur Automation Und Organisation Mbh Thickness measuring apparatus for sheet material
EP0467117A1 (fr) * 1990-07-04 1992-01-22 Zellweger Luwa Ag Dispositif pour mesurer l'épaisseur et/ou l'irrégularité d'une couche de fibres ou d'ouates dans les machines de préparation des métiers à filer
US20030066200A1 (en) * 2001-10-10 2003-04-10 Hellstrom Ake Arvid Non-contact sheet sensing system and related method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2489326Y (zh) * 2001-03-13 2002-05-01 上海贵宝机电有限公司 在线自动检测装置用的力传感器

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB772739A (en) * 1954-05-17 1957-04-17 Brittains Ltd A method of and apparatus for continuously indicating the thickness of a moving fibrous web
US4506413A (en) * 1982-02-18 1985-03-26 Trutzschler Gmbh & Co. Kg Apparatus for regulating fiber quantities supplied to a textile machine
US4777729A (en) * 1985-04-19 1988-10-18 Gao Gesellschaft Fur Automation Und Organisation Mbh Thickness measuring apparatus for sheet material
US4742879A (en) * 1985-10-01 1988-05-10 Trutzschler Gmbh & Co. Kg Apparatus for measuring quantities of fiber fed to a textile machine
US4776065A (en) * 1986-03-14 1988-10-11 Trutzschler Gmbh & Co. Kg Fiber sliver or lap evening apparatus for a carding machine
EP0261355A2 (fr) * 1986-09-25 1988-03-30 Trützschler GmbH & Co. KG Dispositif pour égaliser le ruban de fibres ou la toison de fibres sur une carde, carde (laine) ou similaire
EP0467117A1 (fr) * 1990-07-04 1992-01-22 Zellweger Luwa Ag Dispositif pour mesurer l'épaisseur et/ou l'irrégularité d'une couche de fibres ou d'ouates dans les machines de préparation des métiers à filer
US20030066200A1 (en) * 2001-10-10 2003-04-10 Hellstrom Ake Arvid Non-contact sheet sensing system and related method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102041588A (zh) * 2009-10-21 2011-05-04 特鲁菲舍尔股份有限公司及两合公司 纺纱间准备机上的具有一对传感辊的装置

Also Published As

Publication number Publication date
CN101809210B (zh) 2012-06-06
CN101809210A (zh) 2010-08-18

Similar Documents

Publication Publication Date Title
DE4235610C2 (de) Vorrichtung an einer Spinnereivorbereitungsmaschine, z. B. Karde, Reiniger o. dgl., zur Messung von Abständen an Garnituren
EP0829720B1 (fr) Appareil de mesure de la rigidité à la fléxion d'une bande en déplacement
DE1928783C3 (de) Verfahren zur Umformung der Relativbewegung zweier Körper, die in reibendem Kontakt miteinander stehen, in eine elektrische Größe
WO2009039672A1 (fr) Dispositif et procédé de mesure de la masse ou de l'épaisseur de rouleau à l'entrée d'une carde
EP0467117B1 (fr) Dispositif pour mesurer l'épaisseur et/ou l'irrégularité d'une couche de fibres ou d'ouates dans les machines de préparation des métiers à filer
EP2113608A2 (fr) Dispositif de racloir et dispositif de raclage
EP0192835A1 (fr) Dispositif pour la détection continue de la masse d'une bande de fibres
EP3012361B1 (fr) Dispositif sur une machine de préparation de filature, par exemple carde destinée à mesurer les écarts entre les barres de chapeaux garnies d'une carde à chapeaux et le tambour garni
CH479478A (de) Verfahren und Vorrichtung zur Überwachung der Bewegung eines Textilfadens
DE19501186B4 (de) Bogenabfühlschuh, Dickenabtastkopf und Dickenmeßsystem
CH672325A5 (fr)
CH672323A5 (fr)
DE4115960C2 (de) Verfahren und Vorrichtung zum Einstellen des gegenseitigen Abstandes einander benachbarter Walzen von Krempeln
EP0093865B2 (fr) Palpeur pour la détection de coutures
DE102008047156A1 (de) Vorrichtung für eine oder an einer Spinnereivorbereitungsmaschine, insbesondere Karde, Strecke, Kämmmaschine oder Flyer, zur Korrektur eines Messsignals
EP2304088B1 (fr) Unité de détection à fonctionnement capacitif utilisée pour surveiller la qualité de matériaux fibreux et machine équipée d'une telle unité servant à produire des tissus maillés
EP0891435B1 (fr) Dispositif pour mesurer l'epaisseur et/ou l'inegalite d'ouates ou de non-tisses
WO2006070008A1 (fr) Procede pour determiner la masse lineique ou la section d'un composite fibreux textile et dispositif correspondant
DE2510913A1 (de) Lagerung von zur papierbahnzugmessung dienenden walzen in rotationsdruckmaschinen
DE2708417C2 (de) Vorrichtung zum Messen einer Querdimension eines längsbewegten kontinuierlichen Gutes
DE10117879A1 (de) Fadendetektor
DE102019110654A1 (de) Verfahren und Textilmaschine zur automatischen Einstellung und Konstanthaltung eines definierten Abstandes zwischen einer drehbar gelagerten Trommel und einem weiteren Bauteil
EP0754789B1 (fr) Méthode et dispositif pour enregistrer la masse d'un matériau fibreux dans un métier à filer
CH701226A1 (de) Vorrichtung und verfahren zur messung der masse eines bewegten faserbandes.
EP3767019A1 (fr) Agencement de capteur permettant de détecter au moins une caractéristique physique d'une pluralité de fils

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 200880109600.4

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08783461

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 2250/CHENP/2010

Country of ref document: IN

122 Ep: pct application non-entry in european phase

Ref document number: 08783461

Country of ref document: EP

Kind code of ref document: A1