EP0751243B1 - Dispositif pour mesurer l'épaisseur et/ou l'inégalité de rubans de fibres - Google Patents

Dispositif pour mesurer l'épaisseur et/ou l'inégalité de rubans de fibres Download PDF

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Publication number
EP0751243B1
EP0751243B1 EP96109123A EP96109123A EP0751243B1 EP 0751243 B1 EP0751243 B1 EP 0751243B1 EP 96109123 A EP96109123 A EP 96109123A EP 96109123 A EP96109123 A EP 96109123A EP 0751243 B1 EP0751243 B1 EP 0751243B1
Authority
EP
European Patent Office
Prior art keywords
measuring
adjustable
sliver
adjustable part
guide conduit
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
EP96109123A
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German (de)
English (en)
Other versions
EP0751243A1 (fr
Inventor
Jürg Zehr
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 EP0751243A1 publication Critical patent/EP0751243A1/fr
Application granted granted Critical
Publication of EP0751243B1 publication Critical patent/EP0751243B1/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
    • 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 slivers, with a measuring part, which is a channel-like guide channel for the sliver and a mechanical and relative scanning of the sliver has adjustable scanning member to the guide channel.
  • Such a device is for example from the patent CH-668 833 known.
  • This device contains a funnel-shaped Compression element and a measuring element arranged on it for measuring the thickness of a sliver used for this purpose passes through a measuring channel.
  • the sliver is replaced by a Leaf spring scanned, which is provided with strain gauges and forms a scanning and measuring element. In the area of the leaf spring is the measuring channel with a semicircular cross-section educated.
  • the invention as characterized in the claims is thus solves the task of creating a device that avoids the disadvantages mentioned and a more precise measurement of the Thickness and / or irregularity of a sliver allowed.
  • the measuring channel one, the sliver Contacting, adjustable part that also formed channel-like and mounted on resilient supports is.
  • the deflection of the adjustable part preferably detected without contact.
  • the Measuring device is thus from the part that moves through the belt is separated. This can also be guaranteed by that the deflection is not on the adjustable part itself, but is detected on the resilient supports.
  • the device for the sliver now forms a measuring channel, which has a circular or oval cross section, in any case forms a boundary surface that is continuous runs, i.e. has no strongly changing radii or corners.
  • This cross section can easily pass through the sliver to be filled in completely.
  • the measuring element and that Element in contact with the sliver is not coupled are both easily interchangeable and the whole device can easily be adapted to the properties of the sliver to adjust.
  • measuring elements with a larger one Use measuring range are both easily interchangeable and the whole device can easily be adapted to the properties of the sliver to adjust.
  • Figure 1 shows the device 1 according to the invention in its environment. These include a so-called inlet funnel 2 on one Side of the device 1 and driven take-off rollers 3, 4 for the sliver on the other side.
  • the device 1 is in a housing 5 is arranged, in which a measuring part 6 and a Measuring element 7 are stored.
  • the measuring element 7 is preferred here designed as a distance meter, the distance without contact can measure.
  • the measuring element 7 can also be used as a pressure or Force meter be formed, which touches the measuring part 6, because the measuring principle used is irrelevant as long as it is desired measurement accuracy. It is therefore also mechanical Distance meters conceivable in which between the measuring part 6 and the measuring element 7 a preferably detachable mechanical connection consists.
  • FIG. 2 shows in particular the measuring part 6, the one compression part 8, a guide channel 9, a scanning element 10 and deflectable Carrier 11 and 12 has.
  • the scanning element 10 is the one Part of the measuring part 6, the sliver, not shown here contacted for the measurement and it consists of a fixed Part 13 and a movable or adjustable part 14.
  • Das Scanning element 10 is in an area contacting the fiber sliver, also formed gutter-like and forms a kind of Guide channel 15. This is on the one hand through the fixed part 13 and on the other hand by the adjustable part 14 against the Sliver limited.
  • a closed flow channel 16 is provided, whose cross-sectional area is larger than the cross-sectional area of the guide channel 15, which here by appropriate choice of Diameters is indicated. This also applies if the adjustable part 14 in a maximum deflected position to the fixed part 13.
  • the guide channel 15 is preferred through two half-shells, each with a semicircular cross-section formed, with a half-shell to the fixed part 13 and a half shell belongs to the movable part 14.
  • An outlet channel 17 is connected downstream of the guide channel 15 and, like the flow channel 16 a larger cross section than the guide channel 15.
  • the fixed and the adjustable part 13, 14 of the measuring element 10 are separated from each other by a separating slot 18 which is in the Areas of the fixed and adjustable part a section 19 in which it is parallel to an axis 20 of the measuring part runs.
  • the separating slot 18 has in the region of the ends of the adjustable part radially extending sections 21 and 22.
  • Figure 3 shows a section through the measuring part 6 in the area of Guide channel 15. This shows the ones already mentioned Half shells 23 and 24 and parts 25 and 26 of the separating slot 18.
  • a thin cover 28 on one of the half shells 23 or 24 can be fixed, which covers the separating slot 18 and prevents the sliver from getting stuck in it.
  • other solutions are known to prevent this problem.
  • Figure 5 shows again in a view from the outside, the fixed Part 13 and the movable part 14 and the beams 11 and 12 which are resilient, like a leaf spring.
  • FIG. 6 shows the fixed part 13 in a further embodiment and the movable part 14 ', which here only on a single Carrier 12 is attached.
  • the movable part 14 can also be tilted more easily than the fixed part 13.
  • This additional movement can be carried out by a further measuring system 29 the measuring system 7 already known from FIG. 1, or can be prevented by a guide acting in an area 30.
  • Strain gauges 33 attached directly to the carrier 12 be. These are preferably connected to detachable connections in the inlet funnel 2 connected, so that the measuring part shown also in is exchangeable in this case.
  • the operation of the device according to the invention is as follows:
  • the sliver runs through the inlet funnel 2 and passes through the pulling rollers 3 and 4, in a manner known per se, through the measuring part 6. It is compressed in the inlet funnel 2 and in the compression part 8 and thus reaches the feed channel 16.
  • the two half-shells 23, 24 or parts 13, 14 are pushed apart more or less against the force of the resilient carrier (s) 11, 12 in the scanning element 10.
  • the sliver then runs through the outlet part 17.
  • the movable part 14 is repositioned, at least temporarily, for the duration or length of a thick or thin point of the sliver, which is detected by the measuring element 7.
  • the position of the part 14 can also be detected via a section 27 of a carrier.
  • the position of the adjustable part 14 can also be detected at other or more points by a plurality of measuring elements 7, 29. This, for example, to monitor the parallelism of the two half-shells 23, 24 and to increase the measuring accuracy.
  • the movable part can also Have stop 31 of the movement of the movable part limited against the housing 5 and so an overextension of the Carrier or associated measuring elements prevented. Since that too measuring slivers can also cause a lot of dust, it is possible to blow air into the housing 5 via an opening 32 and build up an overpressure, the dust, the bottom could penetrate, keep away.
  • the material can be of different material or speed 6 can be replaced easily.
  • the measuring parts 6 can this purpose in relation to the shape of the half-shells 23, 24 which Restoring force of the carrier 11, 12 or the mass of the adjustable Part 14 differentiate. Generally, however, this measuring part has 6 a low mass and thus a high natural resonance frequency. So shorter defects in the sliver can also be recorded.

Claims (10)

  1. Dispositif pour mesurer l'épaisseur et/ou l'inégalité de rubans de fibres, avec un élément de mesure (6) qui présente un canal de guidage (9) en forme de rainure pour le ruban de fibres et un organe de tâtage (10) tâtant mécaniquement le ruban de fibres et réglable relativement au canal de guidage, caractérisé en ce que l'organe de tâtage, dans une zone venant en contact avec le ruban de fibres, est également réalisé en forme de rainure, et forme une sorte de canal de guidage (15) de telle sorte que le ruban de fibres passe dans l'élément de mesure à travers un canal de guidage constitué d'une partie fixe (13) et d'une partie (14) ajustable relativement à la partie fixe, que la partie ajustable est fixée à au moins un support (11, 12) apte à être dévié et qu'il est prévu pour la mesure de l'épaisseur et/ou de l'inégalité du ruban de fibres un organe de mesure (7) pour mesurer le déplacement de la partie ajustable.
  2. Dispositif selon la revendication 1, caractérisé en ce que l'élément de mesure présente un canal d'avancement (16) qui est disposé en amont de la partie ajustable du canal de guidage, qui entoure le ruban de fibres sur tout son pourtour et qui a une plus grande section transversale que la partie ajustable avec la partie fixe associée.
  3. Dispositif selon la revendication 1, caractérisé en ce que l'élément de mesure présente un canal de sortie (17) qui est disposé en aval de la partie ajustable du canal de guidage (15), qui entoure le ruban de fibres sur tout son pourtour et qui a une plus grande section transversale que la partie ajustable avec la partie fixe associée.
  4. Dispositif selon la revendication 1, caractérisé en ce que les parties fixe et ajustable (13, 14) de l'organe de mesure (10) sont séparées l'une de l'autre par une fente de séparation (18) qui présente au voisinage des parties fixe et ajustable un tronçon (19) dans lequel elle s'étend parallèlement à un axe (20) de l'élément de mesure et que la fente de séparation présente au voisinage des extrémités de la partie ajustable des tronçons (21 et 22) s'étendant radialement.
  5. Dispositif selon la revendication 1, caractérisé en ce que la partie ajustable conjointement avec le canal de sortie présente deux supports (11, 12) aptes à être déviés.
  6. Dispositif selon la revendication 1, caractérisé en ce qu'il est prévu comme organe de mesure (7) pour mesurer le déplacement de la partie ajustable, un système de mesure de la distance qui est isolé mécaniquement du support.
  7. Dispositif selon la revendication 1, caractérisé en ce qu'il est associé à la partie ajustable (14) un système de mesure additionnel (29).
  8. Dispositif selon la revendication 1, caractérisé en ce que le canal de guidage (15) est constitué de deux demi-coques (23, 24) séparées par une fente de séparation modifiable (19).
  9. Dispositif selon la revendication 1, caractérisé en ce qu'il est prévu comme organe de mesure, pour mesurer le déplacement de la partie ajustable, un système de mesure de la pression.
  10. Dispositif selon la revendication 1, caractérisé en ce qu'il est prévu comme organe de mesure, pour mesurer le déplacement de la partie ajustable, un système de mesure de la force.
EP96109123A 1995-06-29 1996-06-07 Dispositif pour mesurer l'épaisseur et/ou l'inégalité de rubans de fibres Expired - Lifetime EP0751243B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH190895 1995-06-29
CH1908/95 1995-06-29
CH190895 1995-06-29

Publications (2)

Publication Number Publication Date
EP0751243A1 EP0751243A1 (fr) 1997-01-02
EP0751243B1 true EP0751243B1 (fr) 1999-12-08

Family

ID=4221413

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96109123A Expired - Lifetime EP0751243B1 (fr) 1995-06-29 1996-06-07 Dispositif pour mesurer l'épaisseur et/ou l'inégalité de rubans de fibres

Country Status (5)

Country Link
US (1) US5697247A (fr)
EP (1) EP0751243B1 (fr)
JP (1) JPH0913237A (fr)
CN (1) CN1157909A (fr)
DE (1) DE59603836D1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10233289A1 (de) * 2002-07-22 2004-02-12 Rieter Ingolstadt Spinnereimaschinenbau Ag Strecke sowie Baustausensor
DE10327469B4 (de) * 2002-07-06 2016-03-10 Rieter Ingolstadt Gmbh Bandquerschnittsmesseinrichtung

Families Citing this family (5)

* 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
US7103440B2 (en) * 2001-12-11 2006-09-05 Rieter Ingolstadt Spinnereimaschinenbau Ag Use of microwaves for sensors in the spinning industry
DE10214955B9 (de) * 2002-04-04 2017-06-29 Rieter Ingolstadt Gmbh Spinnereivorbereitungsmaschine
CH701226A1 (de) * 2009-06-04 2010-12-15 Uster Technologies Ag Vorrichtung und verfahren zur messung der masse eines bewegten faserbandes.
CN102207373B (zh) * 2011-03-28 2013-06-12 南通宏大实验仪器有限公司 一种用于纤维须条均匀度检测的数据采集系统及其处理方法

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DE150487C (fr) *
DE1510487C3 (de) * 1966-03-10 1975-11-20 Zinser-Textilmaschinen Gmbh, 7333 Ebersbach Vorrichtung zum VergleichmäBigen der Banddicke von Faserbändern
GB1226082A (fr) * 1968-01-31 1971-03-24
US3822590A (en) * 1972-05-01 1974-07-09 Maremont Corp Textile sliver unevenness detecting
CH553981A (de) * 1972-05-10 1974-09-13 Rieter Ag Maschf Vorrichtung zur messung von dichteschwankungen eines faserbandes in spinnereimaschinen.
US3925850A (en) * 1973-11-01 1975-12-16 Fibers Controls Corp Density sensing and controlling equipment
US3990292A (en) * 1974-12-13 1976-11-09 General Electric Company Frequency modulated fluidic gauge
US4122703A (en) * 1976-11-24 1978-10-31 Davis Jesse B Method and apparatus for reeling discrete yarn strand patterns
DE2657603A1 (de) * 1976-12-18 1978-06-22 Truetzschler & Co Geraet zum messen eines faserbandes
CH635373A5 (de) * 1979-04-06 1983-03-31 Zellweger Uster Ag Mess- und regeleinrichtung mit einem messtrichter zur bestimmung der durchzugskraft von faserbaendern.
CH651669A5 (de) * 1981-07-13 1985-09-30 Zellweger Uster Ag Verfahren und vorrichtung zur bestimmung der substanzmenge oder dichte von fasermengen, insbesondere des substanzquerschnittes von faserbaendern.
DE3237357C2 (de) * 1982-01-18 1985-12-19 Zellweger Uster Ag, Uster Vorrichtung zur Messung charakteristischer Merkmale von Fasermaterial
IT1179098B (it) * 1984-09-06 1987-09-16 Cselt Centro Studi Lab Telecom Perfezionamenti alle apparecchiature a condensatore per la misura del diametro di fibre dielettriche
CH668833A5 (de) * 1986-01-16 1989-01-31 Zellweger Uster Ag Vorrichtung zum messen und/oder vergleichmaessigen der banddicke von faserbaendern.
US4766647A (en) * 1987-04-10 1988-08-30 Spinlab Partners, Ltd. Apparatus and method for measuring a property of a continuous strand of fibrous materials
DE9404333U1 (de) * 1993-04-02 1994-08-04 Truetzschler Gmbh & Co Kg Vorrichtung zur Messung der Stärke eines Faserverbandes mit einer Bandführung zum Führen der Faserbänder am Streckwerkseinlauf
DE4404326A1 (de) * 1993-04-02 1994-10-06 Truetzschler Gmbh & Co Kg Vorrichtung zur Messung der Stärke eines Faserbandes mit einer Bandführung zum Führen der Faserbänder am Streckwerkseinlauf

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10327469B4 (de) * 2002-07-06 2016-03-10 Rieter Ingolstadt Gmbh Bandquerschnittsmesseinrichtung
DE10233289A1 (de) * 2002-07-22 2004-02-12 Rieter Ingolstadt Spinnereimaschinenbau Ag Strecke sowie Baustausensor
DE10233289B4 (de) * 2002-07-22 2015-12-24 Rieter Ingolstadt Gmbh Strecke sowie Bandstausensor

Also Published As

Publication number Publication date
US5697247A (en) 1997-12-16
DE59603836D1 (de) 2000-01-13
CN1157909A (zh) 1997-08-27
JPH0913237A (ja) 1997-01-14
EP0751243A1 (fr) 1997-01-02

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