EP0308731B1 - Method and apparatus for regulating a raising machine - Google Patents
Method and apparatus for regulating a raising machine Download PDFInfo
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- EP0308731B1 EP0308731B1 EP88114650A EP88114650A EP0308731B1 EP 0308731 B1 EP0308731 B1 EP 0308731B1 EP 88114650 A EP88114650 A EP 88114650A EP 88114650 A EP88114650 A EP 88114650A EP 0308731 B1 EP0308731 B1 EP 0308731B1
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- Prior art keywords
- fabric
- web
- rollers
- counter
- sensor
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C11/00—Teasing, napping or otherwise roughening or raising pile of textile fabrics
Definitions
- the invention relates to a method for regulating the roughening process on a scraper roughening machine for textile webs formed by a drum and / or counter-stroke rollers. Such a method is known from document FR-A-2 573 101. It also relates to an apparatus for performing the method.
- the roughening result of a drum grinder with line and / or counter-stroke rollers provided on the drum circumference can be influenced by a large number of setting parameters. These parameters include the choice of the scratch set, the pretreatment of the textile fabric, e.g. B. by sanding or chemical treatment, the web speed, the web tension, the adjustment of the coating energy, the adjustment of the counter-coating energy, the adjustment of the slippage of the roughing rollers by choosing the tension of the belts driving these rollers, by the number of rough passages, provided on the drum circumference Fabric web lifting and by selecting the sequence of dash and / or counter-stroke rollers.
- These parameters include the choice of the scratch set, the pretreatment of the textile fabric, e.g. B. by sanding or chemical treatment, the web speed, the web tension, the adjustment of the coating energy, the adjustment of the counter-coating energy, the adjustment of the slippage of the roughing rollers by choosing the tension of the belts driving these rollers, by the number of rough passages, provided
- the invention has for its object to provide a reproducible method for controlling the roughening process of a scratching machine, which should be able to control a roughening process based on a physically exact measurement adapted to a proven roughening result.
- the solution according to the invention for the method of the type mentioned at the outset for regulating the roughening process on a scratch roughening machine for textile fabric webs which has coating and / or counter-coating rollers on the drum jacket is that the measure of a circumference occurring during operation by the coating or counter-coating rollers is in With regard to the drum jacket, approximately radially inward drawing of the processed fabric web is used as the actual value. According to a further invention, the degree of retraction is used as the only actual value variable representing all influencing variables of the roughening.
- the invention is based on the knowledge that, due to the mechanical interrelationships during roughening, as a function of all the setting parameters mentioned at the outset, the material of the fabric web is characteristic only for each selected setting on the line or. Counterstroke rollers are created. Because the roughening only occurs on the wrapping arcs of the line or Counter-stroke rollers play and especially the emergence of the scraper tip from the material of the fabric forms the pile, the drawing plays a crucial role in the pile formation.
- the roughness result can be changed by changing or regulating the degree of retraction.
- the degree of retraction can be changed or regulated, for example, by changing the fabric tension and / or speed, by selecting the line and / or counter-stroke energy or by adjusting the slip of the roughing rollers during operation of the machine. If the optimum degree of retraction is no longer achieved or not at all, this may be due to a deterioration in the sharpness of the clothing or to a clothing unsuitable for the respective article. Further changes can be achieved by preselecting the scratching set, by pretreating the fabric and the like.
- the actual value of the pull-in is preferably measured with the aid of a non-contact displacement sensor, in particular based on ultrasound or light reflection.
- These sensor measurement results can be entered directly into an automatic control.
- a measurement with visual display and control is also favorable, as is the case, for example, with stroboscopic illumination of the The back of the fabric on the circumference of the drum or with the help of a camera pointing at the edge of the fabric with a monitor connected downstream.
- the visual representation of the retraction also allows the effect of adjusting the various setting parameters to be observed and optimized; in addition, the maximum permissible drawing in to avoid winding on the roughing rollers can be monitored during full operation and without influencing the work result.
- the degree of retraction of the fabric web is measured and used as an actual value, which contains all influencing variables during the roughening, for optimal control of the roughening process.
- a contactlessly operating sensor arranged on the circumference of the drum jacket, preferably on the outside thereof, is preferably arranged spatially fixed to detect the time profile of the sensor distance from the surface of the fabric to be processed.
- Path sensors based on ultrasound or light reflection or stroboscopic lighting and display means are particularly suitable for this distance measurement.
- the course of the drawing in on the circumference of the drum can also be recorded with a camera and made visible, for example on a monitor, which is arranged in the plane of the fabric at the circumference of the drum and directed towards the edge of the fabric.
- FIG. 1 schematically shows the cross section of two successive roughing rollers on the circumference of a drum rotated about an axis 1, namely a line roller 2 and a counter-coating roller 3, which are moved about the axis 1 in the transport direction 4 and thereby with a self-driven rotation in the direction of the arrow 5 or 6 roll on a fabric web 8 guided at a fabric speed 7 around the reel.
- FIG. 2 the cross section of a reel 12 is indicated with some roughing rollers 2, 3 provided on the circumference of the reel.
- a sensor 13 is directed onto the back of the fabric web 8 running over the drum, which can detect the course of its distance a from the back of the fabric web 8 in a contactless and non-reactive manner.
- the sensor 13 can operate on the basis of ultrasound or light reflection, a stroboscopic display with triggering for visual control is also possible.
- FIG. 3 shows a partially perspective view of a reel 12 with coating and counter-coating rollers 2, 3 thereon and a web of fabric 8 running over these roughing rollers.
- a camera 14 is fixedly arranged on the side of the reel 12 and on directed the fabric edge 15 facing her. With such a camera with a downstream monitor, a still image as shown in FIG. 1 can be generated upon triggering according to a frequency given by the roughing roller circulation.
- a time profile of the distance a between the sensor 13 and the rear side of the fabric web 8 shown in FIG. 4 can be determined and, if desired, recorded and forwarded to a central computer.
- the roughening rollers are at a standstill, that is to say when the roughness energy is zero, there is a temporal course of the distance as is shown in the lower curve 16 of FIG. 4.
- an essentially symmetrical curve 16 is given for the sake of simplicity.
Description
Die Erfindung betrifft ein Verfahren zum Regeln des Rauhprozesses auf einer einen durch Strich- und/oder Gegenstrichwalzen gebildeten Tambourmantel aufweisenden Kratzenrauhmaschine für textile Stoffbahnen. Ein derartiges Verfahren ist aus dem Dokument FR-A-2 573 101 bekannt. Sie betrifft ferner eine Vorrichtung zum Durchführen des Verfahrens.The invention relates to a method for regulating the roughening process on a scraper roughening machine for textile webs formed by a drum and / or counter-stroke rollers. Such a method is known from document FR-A-2 573 101. It also relates to an apparatus for performing the method.
Das Rauhergebnis einer Tambourrauhmaschine mit am Tambourumfang vorgesehenen Strich- und/oder Gegenstrichwalzen kann durch eine Vielzahl von Einstellparametern beeinflußt werden. Zu diesen Parametern gehören die Wahl der Kratzengarnitur, die Vorbehandlung der textilen Stoffbahn, z. B. durch Schmirgeln oder chemische Behandlung, die Stoffbahngeschwindigkeit, die Stoffbahnspannung, die Einstellung der Strichenergie, die Einstellung der Gegenstrichenergie, die Einstellung des Schlupfes der Rauhwalzen durch Wahl der Spannung der diese Walzen antreibenden Riemen, durch die Anzahl der Rauhpassagen, durch am Tambourumfang vorgesehene Stoffbahnabhebungen und durch die Auswahl der Folge von Strich- und/oder Gegenstrichwalzen. Für ein optimales Rauhen ist aber nicht nur das Erzielen eines bestimmten Rauhergebnisses wichtig sondern auch der Aufwand, mit dem dieses Rauhergebnis erzielt wird. Im allgemeinen kann von einem optimalen Betrieb der Maschine gesprochen werden, wenn der gewünschte Rauheffekt bei maximaler Stoffbahngeschwindigkeit und minimaler Passagenzahl erzielt wird.The roughening result of a drum grinder with line and / or counter-stroke rollers provided on the drum circumference can be influenced by a large number of setting parameters. These parameters include the choice of the scratch set, the pretreatment of the textile fabric, e.g. B. by sanding or chemical treatment, the web speed, the web tension, the adjustment of the coating energy, the adjustment of the counter-coating energy, the adjustment of the slippage of the roughing rollers by choosing the tension of the belts driving these rollers, by the number of rough passages, provided on the drum circumference Fabric web lifting and by selecting the sequence of dash and / or counter-stroke rollers. For optimal roughening, it is not only important to achieve a certain roughening result, but also the effort with which this roughening result is achieved. In general one can speak of an optimal operation of the machine if the desired roughening effect is achieved at maximum fabric speed and minimum number of passages.
Man kann natürlich alle vorgenannten Parameter im Sinne des optimalen Betriebs vorgeben bzw. regeln. Ein Vorschlag hierzu wird bereits in der DE-PS 11 45 573 gemacht. Im allgemeinen kann die Einstellung jedoch nur von einem erfahrenen Rauhmeister vorgenommen werden, da es für eine exakte Messung des Rauhergebnisses geeigenete Geräte oder auch nur verbindliche Regeln nicht gibt. Rauhergebnisse sind daher nur bedingt reproduzierbar.Of course, all of the above parameters can be specified or regulated in terms of optimal operation. A proposal for this is already made in DE-PS 11 45 573. In general, however, the setting can only by an experienced Rauhmeister, as there are no suitable devices or even binding rules for an exact measurement of the roughness result. Rough results can therefore only be reproduced to a limited extent.
Der Erfindung liegt die Aufgabe zugrunde, ein reproduzierbares Verfahren zum Regeln des Rauhprozesses einer Kratzenrauhmaschine zu schaffen, das in der Lage sein soll, einen Rauhprozeß aufgrund einer physikalisch exakten Messung angepaßt an ein erprobtes Rauhergebnis zu regeln.The invention has for its object to provide a reproducible method for controlling the roughening process of a scratching machine, which should be able to control a roughening process based on a physically exact measurement adapted to a proven roughening result.
Für das Verfahren eingangs genannter Art zum Regeln des Rauhprozesses auf einer am Tambourmantel Strich- und/oder Gegenstrichwalzen aufweisenden Kratzenrauhmaschine für textile Stoffbahnen besteht die erfindungsgemäße Lösung darin, daß das Maß eines bei Betrieb durch die Strich- bzw. Gegenstrichwalzen an deren Umfang erfolgenden, in Bezug auf den Tambourmantel etwa radial nach innen gerichteten Einziehens der bearbeiteten Stoffbahn als Ist-Wertgröße genutzt wird. Gemäß weiterer Erfindung wird das Maß des Einziehens als einzige, alle Einflußgrößen des Rauhens repräsentierende Ist-Wertgröße eingesetzt.The solution according to the invention for the method of the type mentioned at the outset for regulating the roughening process on a scratch roughening machine for textile fabric webs which has coating and / or counter-coating rollers on the drum jacket is that the measure of a circumference occurring during operation by the coating or counter-coating rollers is in With regard to the drum jacket, approximately radially inward drawing of the processed fabric web is used as the actual value. According to a further invention, the degree of retraction is used as the only actual value variable representing all influencing variables of the roughening.
Der Erfindung liegt die Erkenntnis zugrunde, daß aufgrund der mechanischen Zusammenhänge beim Rauhen als Funktion aller eingangs genannten Einstellparameter ein nur für jede gewählte Einstellung charakteristisches Einziehen des Materials der Stoffbahn auf den Strich-bzw. Gegenstrichwalzen entsteht. Da sich nämlich das Rauhen nur auf den Umschlingungsbögen der Strich- bzw. Gegenstrichwalzen abspielt und besonders der Austritt der Kratzenspitze aus dem Material der Stoffbahn den Flor bildet, spielt das Einziehen eine entscheidende Rolle bei der Florbildung.The invention is based on the knowledge that, due to the mechanical interrelationships during roughening, as a function of all the setting parameters mentioned at the outset, the material of the fabric web is characteristic only for each selected setting on the line or. Counterstroke rollers are created. Because the roughening only occurs on the wrapping arcs of the line or Counter-stroke rollers play and especially the emergence of the scraper tip from the material of the fabric forms the pile, the drawing plays a crucial role in the pile formation.
Demgemäß wird durch die Erfindung erreicht, daß lediglich durch Messen des Einziehens alle in das Rauhergebnis eingehenden Einstellparameter zu erfassen sind. Umgekehrt kann das Rauhergebnis durch Veränderung oder Regelung des Maßes des Einziehens verändert werden. Das Maß des Einziehens läßt sich beispielsweise durch Veränderung der Stoffbahnspannung und/oder -geschwindigkeit, durch Wahl der Strich- und/oder Gegenstrichenergie oder durch Schlupfeinstellung der Rauhwalzen bereits während des Betriebs der Maschine verändern oder regeln. Wenn das optimale Maß des Einziehens nicht mehr oder überhaupt nicht erreicht wird, kann dies an einer nachlassenden Schärfe der Garnitur bzw. an einer für den jeweiligen Artikel ungeeigneten Garnitur liegen. Weitere Änderungen lassen sich durch Vorwahl von Kratzengarnitur, durch die Vorbehandlung der Stoffbahn und dergleichen erreichen.Accordingly, it is achieved by the invention that only by measuring the retraction can all setting parameters that are included in the roughness result be recorded. Conversely, the roughness result can be changed by changing or regulating the degree of retraction. The degree of retraction can be changed or regulated, for example, by changing the fabric tension and / or speed, by selecting the line and / or counter-stroke energy or by adjusting the slip of the roughing rollers during operation of the machine. If the optimum degree of retraction is no longer achieved or not at all, this may be due to a deterioration in the sharpness of the clothing or to a clothing unsuitable for the respective article. Further changes can be achieved by preselecting the scratching set, by pretreating the fabric and the like.
Zum Erfassen des Einzieheffektes stehen verschiedene Möglichkeiten zur Verfügung, vorzugsweise wird der Ist-Wert des Einziehens mit Hilfe eines berührungslos arbeitenden Wegsensors, insbesondere auf Ultraschall-oder Lichtreflexionsbasis, gemessen. Diese Sensor-Meßergebnisse können unmittelbar in eine automatische Steuerung eingegeben werden. Günstig ist aber auch eine Messung mit visueller Anzeige und Kontrolle, wie sie beispielsweise durch stroboskopische Beleuchtung der Stoffbahnrückseite am Tambourumfang oder mit Hilfe einer auf die Stoffbahnkante gerichteten Kamera mit nachgeschaltetem Monitor ermittelt werden können. Durch die visuelle Darstellung des Einziehens läßt sich auch die Auswirkung einer Verstellung der verschiedenen Einstellparameter beobachten und optimieren; außerdem kann das zum Vermeiden eines Wickels auf den Rauhwalzen maximal zulässige Einziehen bei vollem Betrieb und ohne Beeinflußung des Arbeitsergebnisses überwacht werden.Various possibilities are available for detecting the pull-in effect; the actual value of the pull-in is preferably measured with the aid of a non-contact displacement sensor, in particular based on ultrasound or light reflection. These sensor measurement results can be entered directly into an automatic control. However, a measurement with visual display and control is also favorable, as is the case, for example, with stroboscopic illumination of the The back of the fabric on the circumference of the drum or with the help of a camera pointing at the edge of the fabric with a monitor connected downstream. The visual representation of the retraction also allows the effect of adjusting the various setting parameters to be observed and optimized; in addition, the maximum permissible drawing in to avoid winding on the roughing rollers can be monitored during full operation and without influencing the work result.
Erfindungsgemäß wird das Maß des Einziehens der Stoffbahn meßtechnisch erfaßt und als Ist-Wertgröße, die alle Einflußgrößen beim Rauhen enthält, zur optimalen Regelung des Rauhprozesses genutzt. Für die Messung wird vorzugsweise ein am Umfang des Tambourmantels, vorzugsweise auf dessen Außenseite, angeordneter, berührungslos arbeitender Sensor zum Erfassen des zeitlichen Verlaufs des Sensorabstandes von der Fläche der zu bearbeitenden Stoffbahn räumlich fest angeordnet. Für diese Abstandsmessung kommen vor allem Wegsensoren auf Ultraschall- oder Lichtreflexionsbasis oder stroboskopische Beleuchtungs- und Anzeigemittel infrage. Der Verlauf des Einziehens am Tambourumfang kann aber auch mit einer Kamera aufgenommen und, beispielsweise auf einem Monitor, sichtbar gemacht werden, die etwa in der Ebene der Stoffbahn am Tambourumfang fest angeordnet auf den Stoffbahnrand gerichtet wird. Bei synchron mit der Frequenz der aufeinanderfolgenden Rauhwalzen getriggerter Darstellung lassen sich in allen Fällen stehende Bilder des Einzieheffektes, z. B. auf einem Bildschirm, darstellen.According to the invention, the degree of retraction of the fabric web is measured and used as an actual value, which contains all influencing variables during the roughening, for optimal control of the roughening process. For the measurement, a contactlessly operating sensor arranged on the circumference of the drum jacket, preferably on the outside thereof, is preferably arranged spatially fixed to detect the time profile of the sensor distance from the surface of the fabric to be processed. Path sensors based on ultrasound or light reflection or stroboscopic lighting and display means are particularly suitable for this distance measurement. The course of the drawing in on the circumference of the drum can also be recorded with a camera and made visible, for example on a monitor, which is arranged in the plane of the fabric at the circumference of the drum and directed towards the edge of the fabric. When the display is triggered synchronously with the frequency of the successive roughing rolls, standing pictures of the pull-in effect, e.g. B. on a screen.
Unter Hinweis auf die schematische Zeichnung werden weitere Einzelheiten der Erfindung erläutert. Es zeigen:
- Fig. 1
- eine qualitative Darstellung des Einzieheffektes an zwei aufeinanderfolgenden Rauhwalzen;
- Fig. 2
- die Anordnung eines Sensors am Umfang eines Rauhtambours;
- Fig. 3
- die Anordnung einer auf den Stoffbahnrand gerichteten Kamera; und
- Fig. 4
- ein Diagramm betreffend den zeitlichen Verlauf des Abstandes zwischen einem Sensor und dem Tambourumfang.
- Fig. 1
- a qualitative representation of the pull-in effect on two successive roughing rollers;
- Fig. 2
- the arrangement of a sensor on the circumference of a rough drum;
- Fig. 3
- the arrangement of a camera aimed at the edge of the fabric; and
- Fig. 4
- a diagram relating to the time course of the distance between a sensor and the drum circumference.
Fig. 1 zeigt schematisch den Querschnitt von zwei am Umfang eines um eine Achse 1 gedrehten Tambours aufeinanderfolgenden Rauhwalzen, nämlich einer Strichwalze 2 und einer Gegenstrichwalze 3, die in der Transportrichtung 4 um die Achse 1 bewegt werden und dabei mit einer angetriebenen Eigendrehung in Pfeilrichtung 5 bzw. 6 an einer mit einer Warengeschwindigkeit 7 um den Tambour geführten Stoffbahn 8 abrollen. Durch die Wirkung des Einziehens der Stoffbahn 8 auf den Strichwalzen 2 und Gegenstrichwalzen 3 ergibt sich kein tangentialer Verlauf der Stoffbahn 8, wie er durch die gestrichelte Linie 9 angedeutet wird, sondern ein Einziehen der Stoffbahn 9 als Folge der durch die Pfeile gekennzeichneten Tangentialkräfte 10 und 11, so daß der Wirkbogen der Rauhwalzen 2 und 3 auf den Bereich EA, also weit über den bei tangentialem Verlauf 9 möglichen Bereich ausgedehnt wird. Das Maß des Einziehens wird im Ausführungsbeispiel durch die Winkel w1 und w2 für die Strichwalze 2 bzw. Gegenstrichwalze 3 angedeutet.1 schematically shows the cross section of two successive roughing rollers on the circumference of a drum rotated about an axis 1, namely a
In Fig. 2 wird der Querschnitt eines Tambours 12 mit einigen am Tambourumfang vorgesehenen Rauhwalzen 2, 3 angedeutet. Auf die Rückseite der über den Tambour laufenden Stoffbahn 8 wird ein Sensor 13 gerichtet, der berührungslos und rückwirkungsfrei den zeitlichen Verlauf seines Abstandes a zur Rückseite der Stoffbahn 8 erfassen kann. Der Sensor 13 kann auf Ultraschall- oder Lichtreflexionsbasis arbeiten, auch eine stroboskopische Anzeige mit Triggerung zur visuellen Kontrolle ist möglich.In Fig. 2 the cross section of a
Fig. 3 zeigt eine teilweise perspektivisch dargestellte Ansicht eines Tambours 12 mit darauf befindlichen Strich- und Gegenstrichwalzen 2, 3 und einer über diese Rauhwalzen laufenden Stoffbahn 8. Etwa in der Ebene der Stoffbahn 8 wird eine Kamera 14 seitlich des Tambours 12 fest angeordnet und auf den ihr zugewandten Stoffbahnrand 15 gerichtet. Mit einer solchen Kamera mit nachgeschaltetem Monitor kann bei Triggerung entsprechend einer durch den Rauhwalzenumlauf gegebenen Frequenz ein stehendes Bild wie in Fig. 1 erzeugt werden.3 shows a partially perspective view of a
Mit Hilfe eines Sensors nach Fig. 2 läßt sich ein in Fig. 4 dargestellter zeitlicher Verlauf des Abstandes a zwischen Sensor 13 und Rückseite der Stoffbahn 8 ermitteln und auf Wunsch aufzeichnen, sowie an einen Zentralrechner weiterleiten. Bei Stillstand der Rauhwalzen, also bei Rauhenergie Null, ergibt sich ein zeitlicher Verlauf des Abstandes wie er in der unteren Kurve 16 von Fig. 4 dargestellt wird. Trotz unterschiedlichen Einziehwinkels (w1 bzw. w2) an den Strichwalzen 2 und Gegenstrichwalzen 3 wird der Einfachheit halber eine im wesentlichen symmetrische Kurve 16 angegeben. Wenn die Strich- und Gegenstrichwalzen 2, 3 relativ zur Stoffbahn 8 in Pfeilrichtung 5 und 6 mit den ihnen typischen Rauhenergien angetrieben werden, ergibt sich ein Verlauf des Abstandes a zwischen Sensor 13 an der Rückseite der Stoffbahn 8 wie in der oberen Kurve 17 von Fig. 4 dargestellt wird. Aus einer relativ regelmässigen Wellenlinie 16 wird also eine Art Sägezahnkurve 17.With the aid of a sensor according to FIG. 2, a time profile of the distance a between the
- 11
- = Achse= Axis
- 22nd
- = Strichwalze= Line roller
- 33rd
- = Gegenstrichwalze= Counter-coating roller
- 44th
- = Tambourdrehrichtung= Direction of drum rotation
- 55
- = Strichwalzen-Drehrichtung= Line roller direction of rotation
- 66
- = Gegenstrichwalzen-Drehrichtung= Counter-roller direction of rotation
- 77
- = Warengeschwindigkeit= Goods speed
- 88th
- = Stoffbahn= Fabric
- 99
- = gestrichelte Linien= dashed lines
- 1010th
- = Tangentialkräfte an der Strichwalze= Tangential forces on the line roller
- 1111
- = Tangentialkräfte an der Gegenstrichwalze= Tangential forces on the counter-stroke roller
- 1212
- = Tambour= Drum
- 1313
- = Sensor= Sensor
- 1414
- = Kamera= Camera
- 1515
- = Stoffbahnrand= Fabric edge
- 1616
- = Wellenlinie= Wavy line
- 1717th
- = Sägezahnkurve= Sawtooth curve
Claims (7)
- A method of regulating the raising process on a card wire raising machine for a web of textile fabric having cylinder surfaces constituted by doffer and/or counter-doffer rollers (2, 3), characterized in that the measurement of a drawing-in of the processed web of fabric (8) effected during running by the doffer or counter-rollers (2, 3) on their circumference, and substantially radially inwardly directed relative to the cylinder surface, is used as the actual value.
- A method according to claim 1, characterized in that the measurement of the drawing-in is used as the only actual value representing all influential values of the raising.
- A method according to either claim 1 or 2, characterized in that the measurement of the drawing is altered or regulated during the running of the machine, particularly by the modification of the tension and/or speed of the web of fabric by adjustment of the doffing and/or the counter-doffing power or by the adjustment of the raising rollers.
- A method according to one or more of claims 1 to 3, characterized in that the actual value of the drawing-in is measured by means of a contact-less-operating travel sensor (13), particularly on the ultrasonic or light reflection principle.
- A method according to one or more of claims 1 to 3, characterized in that the actual value of the drawing-in is visually observed by stroboscopic illumination of the rear side of the web of fabric on the circumference of the cylinder.
- A method according to one or more of claims 1 to 3, characterized in that the measurement of the drawing-in is photographed by a camera (14) directed at the edge (15) of the web of fabric and displayed on a monitor.
- An apparatus for carrying out the method according to one or more of claims 1 to 6, characterized in that, on the surface of the cylinder, at least one contactless-operating sensor, particularly a path sensor operating on the ultrasonic or light reflection principle, a stroboscopic means of illumination or a camera, for detecting the length of time of the distance (a) of the sensor from the surface of the web of fabric (8) worked on, is spatially stationarily provided.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19873731898 DE3731898A1 (en) | 1987-09-23 | 1987-09-23 | METHOD FOR REGULATING THE ROUGHING PROCESS ON A SCRATCH RAWING MACHINE AND DEVICE FOR CARRYING OUT THE METHOD |
| DE3731898 | 1987-09-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0308731A1 EP0308731A1 (en) | 1989-03-29 |
| EP0308731B1 true EP0308731B1 (en) | 1991-12-04 |
Family
ID=6336596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP88114650A Expired - Lifetime EP0308731B1 (en) | 1987-09-23 | 1988-09-08 | Method and apparatus for regulating a raising machine |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4922589A (en) |
| EP (1) | EP0308731B1 (en) |
| BR (1) | BR8804789A (en) |
| DE (2) | DE3731898A1 (en) |
| ES (1) | ES2028219T3 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4422844A1 (en) * | 1994-06-30 | 1996-01-11 | Hoechst Ag | Process for needling material webs, device suitable therefor and its use |
| US6058582A (en) * | 1997-10-03 | 2000-05-09 | Parks & Woolson | Napper machine |
| US6141842A (en) * | 1999-05-21 | 2000-11-07 | Parks & Woolson Machine Company | Dynamic zoning assembly in a napper machine |
| ITFI20010237A1 (en) * | 2001-12-14 | 2003-06-16 | Coramtex Srl | FABRIC TREATMENT MACHINE AND RELATED METHOD |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2999294A (en) * | 1959-04-28 | 1961-09-12 | British Cotton Ind Res Assoc | Device for measuring energy input to raising rollers of textile raising machines |
| DE1145573B (en) * | 1960-09-01 | 1963-03-21 | Franz Mueller Maschinenfabrik | Control and display device for gouging machines |
| NL6409767A (en) * | 1963-11-07 | 1965-05-10 | ||
| IT1193058B (en) * | 1982-03-09 | 1988-06-02 | Lamperti Michele Cost Mecc | PROCEDURE AND MEANS TO OPTIMIZE THE USE OF THE OPERATING SURFACE OF THE DRUMS OF THE GARZING MACHINES AND SIMILAR AND MACHINES OBTAINED BY SUCH PROCEDURE AND MEANS AND PRODUCT AND PROCEDURES OBTAINED WITH SUCH MACHINES |
| US4463483A (en) * | 1982-03-11 | 1984-08-07 | W. H. Company, Inc. | Fabric napping apparatus |
| JPS5921770A (en) * | 1982-07-22 | 1984-02-03 | 金井 宏之 | Raising method |
| FR2573101A1 (en) * | 1984-11-09 | 1986-05-16 | Mach Textiles | Process for the automatic regulation of the working parameters of a napping machine and napping machine automated by means of this process |
| DE3540689A1 (en) * | 1985-11-16 | 1987-05-21 | Sistig Kg Leo | METHOD FOR REGULATING THE TENSION OF PRODUCTS IN TAMBOUR SMOOTHING MACHINES AND TAMBOUR SMOOTHING MACHINE |
-
1987
- 1987-09-23 DE DE19873731898 patent/DE3731898A1/en not_active Withdrawn
-
1988
- 1988-09-08 EP EP88114650A patent/EP0308731B1/en not_active Expired - Lifetime
- 1988-09-08 DE DE8888114650T patent/DE3866654D1/en not_active Expired - Fee Related
- 1988-09-08 ES ES198888114650T patent/ES2028219T3/en not_active Expired - Lifetime
- 1988-09-16 BR BR8804789A patent/BR8804789A/en active Search and Examination
- 1988-09-23 US US07/249,342 patent/US4922589A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| BR8804789A (en) | 1989-04-25 |
| EP0308731A1 (en) | 1989-03-29 |
| ES2028219T3 (en) | 1992-07-01 |
| DE3866654D1 (en) | 1992-01-16 |
| US4922589A (en) | 1990-05-08 |
| DE3731898A1 (en) | 1989-04-13 |
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