EP0891435B1 - Dispositif pour mesurer l'epaisseur et/ou l'inegalite d'ouates ou de non-tisses - Google Patents

Dispositif pour mesurer l'epaisseur et/ou l'inegalite d'ouates ou de non-tisses Download PDF

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Publication number
EP0891435B1
EP0891435B1 EP97904981A EP97904981A EP0891435B1 EP 0891435 B1 EP0891435 B1 EP 0891435B1 EP 97904981 A EP97904981 A EP 97904981A EP 97904981 A EP97904981 A EP 97904981A EP 0891435 B1 EP0891435 B1 EP 0891435B1
Authority
EP
European Patent Office
Prior art keywords
thickness
measuring
transmission element
path
measuring system
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
EP97904981A
Other languages
German (de)
English (en)
Other versions
EP0891435A1 (fr
Inventor
François BAECHLER
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.)
Zellweger Luwa AG
Original Assignee
Zellweger Luwa 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 Zellweger Luwa AG filed Critical Zellweger Luwa AG
Publication of EP0891435A1 publication Critical patent/EP0891435A1/fr
Application granted granted Critical
Publication of EP0891435B1 publication Critical patent/EP0891435B1/fr
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
    • D01G31/00—Warning or safety devices, e.g. automatic fault detectors, stop motions
    • D01G31/006—On-line measurement and recording of process and product parameters
    • 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

Definitions

  • the invention relates to a device for measuring the thickness and / or Non-uniformity of wadding or fleeces, hereinafter referred to as wraps, with a Guide for the winding, with a pressing against the guide and relative to this movable thickness sensor, the position of which is a measure of the thickness and / or the Non-uniformity of the winding and with a path measuring system.
  • Such a device is already known from EP-A-0467117.
  • the thickness sensor by a plurality of side by side and individually adjustable by the winding Single sensor formed, which extend across the width of the winding.
  • each Single sensor is an electrical measuring device for detecting the position of the Single sensor arranged for guidance. So there are signals for the position of everyone Single sensors are available that allow differences in the thickness of the wrap that over seen the width of the wrap.
  • a disadvantage of this known device is that the arrangement of a electrical measuring device in each individual sensor is complex and expensive. Does that work Measuring device with strain gauges, each individual measuring device must be in front of the Commissioning must be carefully calibrated, which is a complex process.
  • the features show of claim 5, the further advantage that the deflections of all individual sensors are added at the same time so that a signal is generated that represents the average thickness of the roll. Consequently this signal no longer has to be determined by electrical processing of individual signals become.
  • the device can easily be used for one, two or more individual sensors designed or expanded to several individual sensors. When using the The device according to the invention in a card with an open control circuit can do this directly a width-averaged value for the thickness of the wrap can be supplied, which is a more accurate Regulation enables and to improve the uniformity of the belt on Carding spout leads.
  • FIG. 1 shows a device according to the invention. You can see a wrap 1 on a fixed guide 2 rests and preferably as a loose fiber structure such as Cotton wool or a fleece appears, which is referred to below as a wrap.
  • a thickness sensor 3 is on the Winding 1 is provided lying or even immersing, which here in particular as a hollow measuring roller 3 'is formed.
  • the inner surface 4 of the measuring roller 3 ' has two annular grooves 5, 6 on, which serve for the lateral guidance of pairs of rollers 7, 8, which are on the measuring roller 3 ' support.
  • the pairs of rollers 7, 8 have axes of rotation 9, 10, which are mounted in a carriage 11 are.
  • Two further deflection rollers 15, 16 are mounted in a bar 17, the protrudes beyond end faces 18, 19 of the measuring roller 3 'and in which the one end 20 of the transmission element 14 is fixed.
  • the other end 21 of the transmission element 14 is connected to a displacement measuring system 22 and moves in the direction of an arrow 23 if the measuring roller 3 'is moved towards the guide 2 or away from it.
  • the arrow 23 thus shows one Direction leading to a direction of movement of the thickness sensor 3, as indicated by an arrow 24 is specified, is inclined or angled.
  • the path measuring system 22 exists in addition to the actual one Displacement measuring element 22a also from a spring 22b, an adjustable bearing 22c for the spring 22b on the beam 17 and a coupling element 22d for the transmission element 14, which also serves as a measuring surface for the actual displacement measuring element 22a.
  • the contact force of the thickness sensor 3 against the guide 2 is (in addition of gravity) generated by the spring 22b.
  • FIG. 2 shows a cross section through the device shown in FIG. 1. Then you recognize again the pairs of rollers 7, 8, the carriage 11 with the support 12 and the guide roller 13, and the Beam 17 with the pulleys 15, 16 and an axis 25 for their storage in the beam 17. How 1 and 2, the guide 2 essentially forms a plane here.
  • Fig. 3 shows a device with three thickness sensors 26, 27, 28, all here on a common Beams 29 are mounted on a guide 30.
  • the structure of the thickness sensor 26, 27, 28 is the one that is already known from FIGS. 1 and 2.
  • all thickness sensors 26 27, 28 a common transmission element 31 and a common distance measuring system 32, which is attached to the beam 29 on one side of the three thickness sensors 26, 27. 28.
  • the bar 29 can, for example, in a manner not shown here, but known, with the Guide 30 may be connected, relied upon, or in any other way, in particular be stationary and at a fixed distance from the guide.
  • the transmission element 31 passes through several measuring rollers, which are between the path measuring system 32 and a fixed bearing 51 are arranged.
  • the bearing 32c is displaceable and adjustable along the beam 29, so that the tensioning force of the spring 32b and thus also the pressing force of all provided thickness sensors 26, 27, 28 can be adjusted together.
  • FIG. 4 again shows the use of a thickness sensor 3 according to the invention above a stationary one and flat guide 2 with a winding 1, the direction by means not shown here an arrow 33 is driven and thus drives the measuring roller 3 '.
  • the winding 1 undergoes compression, so that its height is reduced to an amount a.
  • Fig. 5 shows a thickness sensor 3 as it over a round guide, here a roller 34, which in Direction of an arrow 35 is driven, can be arranged. There is also a compression here of the roll 1 to the amount a.
  • Fig. 6 shows a thickness sensor 3 as it over a multi-part guide, here from two rollers 36 and 37, which are driven in the direction of arrows 38, can be arranged.
  • the winding 1 is compressed to the amount a.
  • FIG. 7 shows the use of a thickness sensor 39 according to the invention in the vicinity of a card 40 with downstream can system 41 for storing carded tape 42
  • Cans have a common mechanical or electrical drive 43 and Monitoring and control system 44.
  • the thickness sensor 39 can be in the range a feed roller 45 is provided at the entrance to the card 40 and via a line 46 be connected to the monitoring and control system 44.
  • the operation of the device according to the invention is as follows: Due to the different thickness of the moving roll 1, the measuring roller 3 'is more or less lifted off the guide 2. A movement of the measuring roller 3 'via the rollers 7, 8, the carriage 11, the support 12 and the deflection roller 13 is transmitted to the transmission element 14, which thereby forms a loop in the region of the deflection rollers 13, 15, 16, enlarged or reduced. The movement of the transmission element causes a transmitter 47 in the displacement measuring system 22 to be more or less deflected, which provides information about the thickness or the uniformity of the winding 1. Instead of the encoder 47, the distance measuring system 22 can also work without contact.
  • the path measuring system 32 If several such thickness sensors 26, 27, 28 are arranged side by side, they add up the deflections of three loops 48, 49, 50, so that at that end of the transmission element, which is attached to the path measuring system 32, gives a signal that the averaged Thickness of the winding 1 corresponds. Since all loops 48, 49, 50 are of a medium deflection even with a zero thickness of the winding 1, very small thicknesses will result in one Measuring roller with larger thicknesses offset on another measuring roller. With several thickness sensors In series connection, as is known from FIG. 3, the path measuring system 32 must also be calibrated accordingly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Claims (10)

  1. Dispositif pour mesurer l'épaisseur et/ou l'inégalité d'ouates ou de voiles de carde désignés ci-après par rouleau (1), avec un guidage (2) pour le rouleau, avec un tâteur d'épaisseur (3) poussant celui-ci contre le guidage et déplaçable relativement à celui-ci, dont la position constitue une mesure pour l'épaisseur et/ou l'inégalité du rouleau et avec un système de mesure de déplacement (22), caractérisé par un élément de transmission (14) qui est réalisé et disposé pour transmettre le déplacement du tâteur d'épaisseur (flèche 24) au système de mesure de déplacement dans une direction sélective (flèche 23), inclinée sélectivement vers la direction de déplacement (24) du tâteur d'épaisseur.
  2. Dispositif selon la revendication 1, caractérisé en ce que l'élément de transmission (14) présente un élément de transmission flexible (14) et dévié autour de rouleaux qui est logé fixement à une extrémité (20) et qui est relié à l'autre extrémité (21) au système de mesure de déplacement (22).
  3. Dispositif selon la revendication 1, caractérisé en ce que le tâteur d'épaisseur (3) est constitué d'un rouleau de mesure (3') qui est logé a une poutre (17) d'une manière mobile et tournante, qui présente un écart fixe relativement au guidage.
  4. Dispositif selon la revendication 3, caractérisé en ce que le rouleau de mesure (3') est creux, que la poutre (17) traverse le rouleau de mesure et, ce faisant, fait saillie sur au moins une face frontale (18, 19) du rouleau de mesure.
  5. Dispositif selon la revendication 1, caractérisé en ce que plusieurs tâteurs d'épaisseur (26, 27, 28) sont disposés les uns à côté des autres, et en ce que l'élément de transmission (31) s'étend sur plusieurs tâteurs d'épaisseur.
  6. Dispositif selon la revendication 5, caractérisé en ce que l'élément de transmission (31) est réalisé pour additionner les déplacements de plusieurs tâteurs d'épaisseur.
  7. Dispositif selon la revendication 2, 4 et 5,
    caractérisé en ce que l'élément de transmission (31) est disposé de façon à traverser plusieurs rouleaux de mesure (26, 27, 28) qui sont prévus entre le système de mesure de déplacement (32) et le logement fixe (51).
  8. Dispositif selon la revendication 2, caractérisé en ce que l'élément de transmission (14) forme dans un tâteur d'épaisseur une boucle (13, 15, 16) de telle sorte que le déplacement des déviations du tâteur d'épaisseur pour la détection dans le système de mesure de déplacement (22) est doublé.
  9. Dispositif selon la revendication 2, caractérisé en ce que l'élément de transmission (14) est relié au voisinage du système de mesure de déplacement (22) à un ressort (22b) qui est prévu pour régler la force de pression du tâteur d'épaisseur (3) sur le guidage (2).
  10. Dispositif selon la revendication 9, caractérisé en ce que la force de pression de plusieurs tâbeurs d'épaisseur (26, 27, 28) est réglable par un seul ressort (32b).
EP97904981A 1996-03-27 1997-03-12 Dispositif pour mesurer l'epaisseur et/ou l'inegalite d'ouates ou de non-tisses Expired - Lifetime EP0891435B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH79196 1996-03-27
CH791/96 1996-03-27
CH79196 1996-03-27
PCT/CH1997/000102 WO1997036031A1 (fr) 1996-03-27 1997-03-12 Dispositif pour mesurer l'epaisseur et/ou l'inegalite d'ouates ou de non-tisses

Publications (2)

Publication Number Publication Date
EP0891435A1 EP0891435A1 (fr) 1999-01-20
EP0891435B1 true EP0891435B1 (fr) 2001-11-28

Family

ID=4195273

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97904981A Expired - Lifetime EP0891435B1 (fr) 1996-03-27 1997-03-12 Dispositif pour mesurer l'epaisseur et/ou l'inegalite d'ouates ou de non-tisses

Country Status (7)

Country Link
US (1) US6199289B1 (fr)
EP (1) EP0891435B1 (fr)
JP (1) JP2000508064A (fr)
CN (1) CN1214743A (fr)
DE (1) DE59705554D1 (fr)
TW (1) TW335424B (fr)
WO (1) WO1997036031A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1302166B1 (it) * 1997-09-17 2000-07-31 Truetzschler & Co Dispositivo su uno striratoio per la misura di una nastro di fibrecomposito formato da nastri di fibre
DE20015505U1 (de) * 2000-09-07 2001-07-12 Noltronic Grecon Greten GmbH & Co. KG, 58507 Lüdenscheid Messeinrichtung zur kontinuierlichen Erfassung der Dicke langgestreckter Werkstücke
CN101845690B (zh) * 2010-04-28 2012-01-18 青岛东昌纺机制造有限公司 梳棉机棉层厚度检测调整装置
CN112481784A (zh) * 2020-11-20 2021-03-12 沈晓艳 一种计量、检测、调整一体化的纺织机械

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US477818A (en) * 1892-06-28 Alexander patterson
SU148263A1 (ru) * 1959-12-14 1961-11-30 М.И. Пистров Устройство дл автоматического регулировани толщины резиновой ленты к универсальному каландру
CA982459A (en) * 1972-11-14 1976-01-27 Welland Iron And Metal Company Limited Apparatus for straightening and cutting reinforcing bar
JPS58158509A (ja) * 1982-03-15 1983-09-20 Mitsubishi Electric Corp 巻径検出装置
EP0222741B1 (fr) * 1985-04-19 1988-07-20 GAO Gesellschaft für Automation und Organisation mbH Systeme de mesure de l'epaisseur pour materiau en feuilles
DE3708186A1 (de) * 1987-03-13 1988-09-22 Hergeth Hubert Vorrichtung und verfahren zum hochgenauen messen von fasermatten
US4903750A (en) * 1988-08-31 1990-02-27 Westinghouse Electric Corp. Continuous caster roll monitor
DE3834110A1 (de) 1988-10-07 1990-04-12 Truetzschler & Co Verfahren und vorrichtung zur bewegungserfassung von textilfaserbaendern, z. b. kardenbaendern
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
JPH0434024A (ja) * 1990-05-29 1992-02-05 Daiwabo Co Ltd 混打綿機におけるラップ重量自動制御装置
CH681019A5 (fr) * 1990-07-04 1992-12-31 Zellweger Uster Ag
DE4414972C2 (de) * 1994-04-29 2003-07-24 Rieter Ingolstadt Spinnerei Korrektur eines von einem Tastwalzenpaar zur Dicke eines textilen Faserbandes gewonnenen Meßsignals

Also Published As

Publication number Publication date
DE59705554D1 (de) 2002-01-10
CN1214743A (zh) 1999-04-21
JP2000508064A (ja) 2000-06-27
TW335424B (en) 1998-07-01
WO1997036031A1 (fr) 1997-10-02
US6199289B1 (en) 2001-03-13
EP0891435A1 (fr) 1999-01-20

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