EP3415668B1 - Combing machine - Google Patents

Combing machine Download PDF

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Publication number
EP3415668B1
EP3415668B1 EP18171125.0A EP18171125A EP3415668B1 EP 3415668 B1 EP3415668 B1 EP 3415668B1 EP 18171125 A EP18171125 A EP 18171125A EP 3415668 B1 EP3415668 B1 EP 3415668B1
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EP
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Prior art keywords
combing
service
sensor element
units
suction
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EP18171125.0A
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German (de)
French (fr)
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EP3415668A1 (en
Inventor
Dirk Meier
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Truetzschler Group SE
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Truetzschler GmbH and Co KG
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G19/00—Combing machines
    • D01G19/06—Details
    • D01G19/22—Arrangements for removing, or disposing of, noil or waste
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G19/00—Combing machines
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G19/00—Combing machines
    • D01G19/06—Details
    • D01G19/28—Air draught or like pneumatic arrangements

Definitions

  • the invention relates to a combing machine with a plurality of combing units accommodated in a common housing, which are designed for processing fiber slivers brought to the combing units, a suction device being provided by means of which components combed out of at least one collecting space are led out of the combing units, and each combing unit a service opening is assigned to a service flap through which the collecting space is accessible from the outside.
  • Combing machines generally have combing heads arranged next to one another, for example in an eight-fold arrangement, to which laps of fiber slivers are presented in each case.
  • the fiber fleece combed out by the individual combing heads and discharged is combined to form a fiber sliver by means of known devices and fed transversely to the direction of material flow of the combing units on a guide table to a subsequent drafting unit.
  • the sliver formed with the drafting device is then placed in a sliver deposition over a funnel wheel in the form of a loop in a can.
  • the CH 710 260 A2 a combing machine with several combing units accommodated in a common housing, with the combed-out components, for example noils, nits or dirt, being collected and transported away.
  • a suction device is used for removal, which generates a negative pressure via the combing units, with one as a rule common suction is provided for all combing units of the combing machine.
  • the suction is connected to a collecting space, and the collecting space has fluidic connections to the respective combing units or is connected to them in some other way at least via a flow area.
  • each combing unit of a combing machine be assigned a pivotable cover which is secured against unauthorized opening by means of a light barrier.
  • service openings are provided in the housing of the combing machine and / or in the collecting space, through which the collecting space is accessible, for example to manually remove blockages caused by the combed-out components; service openings also serve to access the mechanical components of the combing units.
  • the service openings can be closed with service flaps in order to generate the negative pressure in the collecting space necessary for the removal of the combed-out components, so that all combed-out components can be removed with the suction system.
  • Combing machines known to date have sensors assigned to the respective service flaps to form the required interlock system, for example microswitches are formed.
  • the comber has a control, and the individual sensors are connected to the control, so that the control can put the comber out of operation when a sensor detects the opening of a service flap.
  • the object of the invention is to develop a comber with a simplified structure.
  • a safety device for recognizing the open position of one and, in particular, several service flaps is to be simplified.
  • a single sensor element is provided with which the closed state of at least two service flaps can be monitored.
  • the one sensor element is arranged and designed in such a way that the closed state of all service flaps can be monitored with this one sensor element.
  • the sensor element is designed and suitably arranged so that it detects the opening of at least two or more service flaps, so that the combing machine can be switched off at least temporarily in connection with the control. Since the combing units of the comber are usually in a row are arranged next to one another, the service flaps are also arranged in a row next to one another, so that a correspondingly designed sensor element can easily be arranged to sense the opening of a service flap without the sensor having to be exclusively assigned to the corresponding service flap. The advantage also arises from the fact that the service openings are connected to one another via the collecting space, so that when a service flap is opened at a correspondingly assigned point, the collecting space experiences an additional opening, whereby suction air can get into the collecting space.
  • the sensor element no longer has to be designed in a tactile manner.
  • the sensor element is designed according to the invention in such a way that it detects the movement of at least one of the service flaps optically or via the suction pressure in the collecting space.
  • the sensor element is formed by a pressure sensor.
  • the pressure sensor is advantageously arranged at a pressure measurement location at which a negative pressure generated by the suction prevails, i.e. generally within the housing and in particular within a collecting space which is arranged in the housing, the space with each of the service flaps in relation to the generated negative pressure communicating in connection. If the collecting space is arranged in the housing of the comber, the pressure sensor interacts in particular with the collecting space. It is of secondary importance whether the actual pressure sensor is arranged inside the housing; this can for example also be connected to the housing and in particular to the collecting space via a vacuum hose, the sensor with the sensor means not necessarily being located within the housing or not within the Collection space must be arranged.
  • the pressure sensor is electrically connected to a controller with a further advantage, the controller being designed to stop the operation of the combing units when the pressure sensor senses a pressure change associated with the opening of a flap and transmits a corresponding signal to the controller.
  • the detection of an open service flap can be displayed via a display means.
  • the sensor element is formed by an optical sensor.
  • a means for generating a light barrier with at least one light beam is provided, the optical sensor being designed to interact with the light beam.
  • the light beam is arranged in such a way that the opening of a service flap interrupts the light beam, for example, and if the service flaps are in a common row, the light beam can run parallel to the common row. If any service flap is opened, the light beam is already interrupted, which interruption the optical sensor can detect.
  • the optical sensor is electrically connected to the controller, the controller being designed to stop the operation of the combing units when the optical sensor senses the light beam or an interruption of the light beam and transmits a corresponding signal to the controller.
  • the combing machine is designed in particular so that a suction channel is arranged in or on the housing, the suction channel forming the collecting space, and the suction channel being in fluid connection with the combing units and with the service flaps. If the suction system sucks the combed-out components from the combing units via the suction channel, the sensor element can be arranged with particular advantage on or in the suction channel.
  • the sensor element is preferably designed as a pressure sensor or as a flow sensor.
  • the suction channel particularly advantageously has a connection point for connecting the suction, the sensor element being arranged close to or adjacent to the connection point. At the junction the largest flow prevails, since all flows from the individual combing units are sucked out collectively via the connection point, and opening a single service flap already leads to a significant change in the pressure and / or flow conditions within the suction channel.
  • FIGS. 1 and 2 each schematically show a combing machine 1 with a housing 10.
  • the housing 10 several combing units 11 are accommodated, which are designed for processing lap laps, not shown in detail, which are brought up to the combing units 11.
  • Eight service flaps 14 are arranged by way of example on the front side of the housing 10, with service flaps being shown in the closed state and service flaps in the open state.
  • the combing machine also has a controller 17 which is connected to the combing units 11 and via which the combing units 11 are controlled.
  • a suction device 12 is shown schematically and sucks the combed-out components from the wadding by means of an air stream.
  • the suction device 12 is only connected to the housing 10, a collecting space 13 being formed within the housing 10 in a manner not shown in more detail, in which the combed-out components are collected from the combing units 11 and from that with the suction device 12 via a negative pressure -Air flow, the combed-out components are removed.
  • a display means 23 is shown, which is implemented, for example, in the form of an operable screen.
  • FIG. 1 shows a first embodiment of a combing machine 1, which has a sensor element 15 which is designed as a pressure sensor 16.
  • the pressure sensor 16 is used to monitor the pressure in the collecting space 13, which is only shown in a simplified manner by the housing 10.
  • the suction 12 generates a negative pressure in the collecting space 13, which changes suddenly when one of the service flaps 14 is opened.
  • the inflow of air through the combing units 11 are indicated by arrows, and if all service flaps 14 are closed, a setpoint pressure is established in the collecting space 13. If one of the service flaps 14 is opened, the setpoint pressure in the collecting space 13 changes, since a further flow path is created with each opened service flap 14, through which air can reach the collecting space 13.
  • the negative pressure in the collecting space 13 is reduced and the flow rate of the suction air, in particular through the suction 12, increases.
  • the pressure sensor 16 is connected to the controller 17, and if the pressure sensor 16 detects a change in the setpoint pressure in the collecting chamber 13, the controller 17 gives the possibility of To put comber 1 at least temporarily out of operation. This creates a safety device with which it is prevented that particularly moving parts of the combing unit 11 can be reached through the service flap 14. This prevents a possible risk of injury.
  • Figure 2 shows a further variant for forming the sensor element 15, which is designed as an optical sensor 18.
  • the optical sensor 18 interacts with a light beam 20 which can be generated by means 19, for example a diode or a laser beam source. If one of the service flaps 14 is opened, the light beam 20 is interrupted, and the interruption can be detected by the optical sensor 18.
  • the connection of the optical sensor 18 to the controller 17 enables the combing machine 1 to be switched off temporarily.
  • the arrangement can also be improved so that a respective service flap 14 can also be detected in an open state with an optical sensor 18, since the distance between the sensor element 15 and the means 19 for generating the light barrier can be measured.
  • Sensors 18 are known which already include the means 19 for generating the light barrier. Accordingly, the optical sensor 18 and the means 19 for generating the light barrier are designed in one structural unit.
  • a correspondingly opened service flap 14 can be identified via a distance measurement, which also makes it possible to put all combing units 11 out of operation via the control, or alternatively, depending on the drive concept used, only put parts or a correspondingly assigned combing unit 11 out of operation.
  • FIG 3 a perspective view of a collecting space 13 with a plurality of service flaps 14 arranged above it is shown.
  • the collecting space 13 is designed as a suction channel 21 which has a connection point 22 at the end.
  • the suction device 12 is arranged on the suction channel 21 via the connection point 22 of the suction channel 21, and a sensor element 15, which is designed as a pressure sensor 16, is arranged close to the connection point 22.
  • a change in the pressure conditions and / or the flow of the air sucked out of the suction channel 21 with the suction device 12 is particularly strong, so that reliable sensing of at least one of the service flaps 14 shown can take place.

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

Description

Die Erfindung betrifft eine Kämmmaschine mit mehreren in einem gemeinsamen Gehäuse aufgenommenen Kämmeinheiten, die zur Bearbeitung von an die Kämmeinheiten herangeführten Faserbändern ausgebildet sind, wobei eine Absaugung vorgesehen ist, mittels der aus wenigstens einem Sammelraum ausgekämmte Bestandteile aus den Kämmeinheiten herausgeführt werden, und wobei jeder Kämmeinheit eine Serviceöffnung mit einer Serviceklappe zugeordnet ist, durch die der Sammelraum von der Außenseite zugänglich ist.The invention relates to a combing machine with a plurality of combing units accommodated in a common housing, which are designed for processing fiber slivers brought to the combing units, a suction device being provided by means of which components combed out of at least one collecting space are led out of the combing units, and each combing unit a service opening is assigned to a service flap through which the collecting space is accessible from the outside.

Kämmmaschinen weisen in der Regel nebeneinander angeordnete Kämmköpfe auf, beispielsweise in 8-facher Anordnung, welchen jeweils Wickel aus Faserbändern vorgelegt werden. Das von den einzelnen Kämmköpfen ausgekämmte und abgegebene Faservlies wird mittels bekannter Vorrichtungen zu einem Faserband zusammengefasst und quer zur Materialflussrichtung der Kämmeinheiten auf einem Führungstisch einer nachfolgenden Streckwerkseinheit zugeführt. Das mit dem Streckwerk gebildete Faserband wird anschließend in einer Bandablage über ein Trichterrad schlaufenförmig in eine Kanne abgelegt.Combing machines generally have combing heads arranged next to one another, for example in an eight-fold arrangement, to which laps of fiber slivers are presented in each case. The fiber fleece combed out by the individual combing heads and discharged is combined to form a fiber sliver by means of known devices and fed transversely to the direction of material flow of the combing units on a guide table to a subsequent drafting unit. The sliver formed with the drafting device is then placed in a sliver deposition over a funnel wheel in the form of a loop in a can.

Beispielsweise offenbart die CH 710 260 A2 eine Kämmmaschine mit mehreren in einem gemeinsamen Gehäuse aufgenommenen Kämmeinheiten, wobei die ausgekämmten Bestandteile, beispielsweise Kämmlinge, Nissen oder Verschmutzungen, gesammelt und abtransportiert werden. Zum Abtransport dient eine Absaugung, die über die Kämmeinheiten einen Unterdruck erzeugt, wobei in der Regel eine gemeinsame Absaugung für sämtliche Kämmeinheiten der Kämmmaschine vorgesehen ist. Die Absaugung ist hierfür mit einem Sammelraum verbunden, und der Sammelraum weist fluidische Verbindungen zu den jeweiligen Kämmeinheiten auf oder ist mit diesen wenigstens über einen Strömungsbereich auf sonstige Weise verbunden.For example, the CH 710 260 A2 a combing machine with several combing units accommodated in a common housing, with the combed-out components, for example noils, nits or dirt, being collected and transported away. A suction device is used for removal, which generates a negative pressure via the combing units, with one as a rule common suction is provided for all combing units of the combing machine. For this purpose, the suction is connected to a collecting space, and the collecting space has fluidic connections to the respective combing units or is connected to them in some other way at least via a flow area.

In der WO2012/097461 A1 wird vorgeschlagen, jeder Kämmeinheit einer Kämmmaschine eine verschwenkbare Abdeckung zuzuordnen, die mittels Lichtschranke gegen unbefugtes Öffnen abgesichert sind.In the WO2012 / 097461 A1 it is proposed that each combing unit of a combing machine be assigned a pivotable cover which is secured against unauthorized opening by means of a light barrier.

Für Servicezwecke sind im Gehäuse der Kämmmaschine und/oder im Sammelraum mehrere Serviceöffnungen vorgesehen, durch die der Sammelraum zugänglich ist, um beispielsweise Verstopfungen durch die ausgekämmten Bestandteile von Hand zu entfernen, zudem dienen Serviceöffnungen dazu, an die mechanischen Bauteile der Kämmeinheiten zu gelangen. Die Serviceöffnungen sind dabei mit Serviceklappen verschließbar, um den für den Abtransport der ausgekämmten Bestandteile notwendigen Unterdruck im Sammelraum zu erzeugen, sodass sämtliche ausgekämmten Bestandteile mit der Absaugung abtransportiert werden können.For service purposes, several service openings are provided in the housing of the combing machine and / or in the collecting space, through which the collecting space is accessible, for example to manually remove blockages caused by the combed-out components; service openings also serve to access the mechanical components of the combing units. The service openings can be closed with service flaps in order to generate the negative pressure in the collecting space necessary for the removal of the combed-out components, so that all combed-out components can be removed with the suction system.

Aus Sicherheitsgründen ist es dabei erforderlich, dass die Serviceöffnungen im Betrieb der Kämmmaschine stets mit den Serviceklappen verschlossen sind. Wird eine Serviceklappe geöffnet, so ist eine vorübergehende Außerbetriebnahme der Kämmmaschine erforderlich, wofür ein entsprechendes Interlocksystem eingerichtet ist. Wird eine Serviceklappe geöffnet, so setzt sich wenigstens die zugeordnete Kämmeinheit, insbesondere jedoch die gesamte Kämmmaschine, vorübergehend außer Betrieb.For safety reasons, it is necessary that the service openings are always closed with the service flaps when the comber is in operation. If a service flap is opened, the combing machine must be temporarily shut down, for which a corresponding interlock system is set up. If a service flap is opened, at least the associated combing unit, but in particular the entire combing machine, is temporarily out of operation.

Bisher bekannte Kämmmaschinen weisen zur Ausbildung des erforderlichen Interlocksystems den jeweiligen Serviceklappen zugeordnete Sensoren auf, die beispielsweise durch Mikroschalter gebildet sind. Die Kämmmaschine weist eine Steuerung auf, und die einzelnen Sensoren sind mit der Steuerung verbunden, sodass die Steuerung die Kämmmaschine außer Betrieb setzen kann, wenn ein Sensor die Öffnung einer Serviceklappe erkennt. Nachteilhafterweise ergibt sich jedoch bei einer Vielzahl von Serviceklappen das Erfordernis einer entsprechenden Anzahl von Sensoren, und es entsteht ein hoher Verdrahtungsaufwand, um jeden Sensor mit der Steuerung elektrisch zu verbinden. Folglich ist es wünschenswert, den Aufbau einer Kämmmaschine zu vereinfachen und die Kämmmaschine mit weniger Sensoren und mit einem geringeren Verdrahtungsaufwand auszuführen.Combing machines known to date have sensors assigned to the respective service flaps to form the required interlock system, for example microswitches are formed. The comber has a control, and the individual sensors are connected to the control, so that the control can put the comber out of operation when a sensor detects the opening of a service flap. Disadvantageously, however, there is a need for a corresponding number of sensors with a large number of service flaps, and a high amount of wiring is required in order to electrically connect each sensor to the controller. Consequently, it is desirable to simplify the structure of a combing machine and to implement the combing machine with fewer sensors and with less wiring.

Aufgabe der Erfindung ist die Weiterbildung einer Kämmmaschine mit einem vereinfachten Aufbau. Insbesondere soll eine Sicherheitseinrichtung zur Erkennung der Öffnungsstellung einer und insbesondere mehrerer Serviceklappen vereinfacht werden.The object of the invention is to develop a comber with a simplified structure. In particular, a safety device for recognizing the open position of one and, in particular, several service flaps is to be simplified.

Diese Aufgabe wird ausgehend von einer Kämmmaschine gemäß dem Oberbegriff der Ansprüche 1 und 6 in Verbindung mit den kennzeichnenden Merkmalen gelöst. Vorteilhafte Weiterbildungen der Erfindung sind in den abhängigen Ansprüchen angegeben.This object is achieved on the basis of a combing machine according to the preamble of claims 1 and 6 in conjunction with the characterizing features. Advantageous further developments of the invention are given in the dependent claims.

Gemäß der Erfindung ist ein einzelnes Sensorelement vorgesehen, mit dem der Schließzustand von wenigstens zwei Serviceklappen überwachbar ist. Insbesondere ist vorgesehen, dass das eine Sensorelement so angeordnet und ausgeführt ist, dass der Schließzustand aller Serviceklappen mit diesem einen Sensorelement überwachbar ist.According to the invention, a single sensor element is provided with which the closed state of at least two service flaps can be monitored. In particular, it is provided that the one sensor element is arranged and designed in such a way that the closed state of all service flaps can be monitored with this one sensor element.

Das Sensorelement ist derart ausgeführt und so geeignet angeordnet, dass dieses die Öffnung wenigstens von zwei oder mehreren Serviceklappen erkennt, sodass in Verbindung mit der Steuerung die Kämmmaschine wenigstens vorübergehend abgeschaltet werden kann. Da die Kämmeinheiten der Kämmmaschine in der Regel in einer Reihe nebeneinander angeordnet sind, sind auch die Serviceklappen in einer Reihe nebeneinander angeordnet, sodass ein entsprechend ausgeführtes Sensorelement einfach angeordnet werden kann, um bereits die Öffnung einer Serviceklappe zu sensieren, ohne dass der Sensor der entsprechenden Serviceklappe ausschließlich zugeordnet sein muss. Der Vorteil ergibt sich auch dadurch, dass die Serviceöffnungen über den Sammelraum miteinander verbunden sind, sodass bei einer Öffnung einer Serviceklappe an einer entsprechend zugeordneten Stelle der Sammelraum eine zusätzliche Öffnung erfährt, wodurch Absaugluft in den Sammelraum gelangen kann. Im Ergebnis ergibt sich der Vorteil, dass das Sensorelement nicht mehr taktil ausgeführt werden muss. Insbesondere ist das Sensorelement erfindungsgemäß so ausgeführt, dass dieses die Bewegung wenigstens einer der Serviceklappen optisch oder über den Saugdruck im Sammelraum erkennt.The sensor element is designed and suitably arranged so that it detects the opening of at least two or more service flaps, so that the combing machine can be switched off at least temporarily in connection with the control. Since the combing units of the comber are usually in a row are arranged next to one another, the service flaps are also arranged in a row next to one another, so that a correspondingly designed sensor element can easily be arranged to sense the opening of a service flap without the sensor having to be exclusively assigned to the corresponding service flap. The advantage also arises from the fact that the service openings are connected to one another via the collecting space, so that when a service flap is opened at a correspondingly assigned point, the collecting space experiences an additional opening, whereby suction air can get into the collecting space. As a result, there is the advantage that the sensor element no longer has to be designed in a tactile manner. In particular, the sensor element is designed according to the invention in such a way that it detects the movement of at least one of the service flaps optically or via the suction pressure in the collecting space.

Gemäß einer ersten möglichen Ausführungsvariante der Erfindung ist das Sensorelement durch einen Drucksensor gebildet. Der Drucksensor ist mit Vorteil an einem Druckmessort angeordnet, an dem ein mit der Absaugung erzeugter Unterdruck vorherrscht, im Allgemeinen also innerhalb des Gehäuses und im Besonderen innerhalb eines Sammelraumes, der im Gehäuse angeordnet ist, wobei der Raum mit jeder der Serviceklappen in Bezug auf den erzeugten Unterdruck kommunizierend in Verbindung steht. Ist der Sammelraum im Gehäuse der Kämmmaschine angeordnet, so wirkt der Drucksensor im Besonderen mit dem Sammelraum zusammen. Dabei ist es nachrangig, ob der eigentliche Drucksensor innerhalb des Gehäuses angeordnet ist, dieser kann beispielsweise auch über einen Unterdruckschlauch mit dem Gehäuse und insbesondere mit dem Sammelraum in Verbindung stehen, wobei der Sensor mit dem Sensormittel nicht zwingend innerhalb des Gehäuses bzw. nicht innerhalb des Sammelraums angeordnet sein muss.According to a first possible embodiment variant of the invention, the sensor element is formed by a pressure sensor. The pressure sensor is advantageously arranged at a pressure measurement location at which a negative pressure generated by the suction prevails, i.e. generally within the housing and in particular within a collecting space which is arranged in the housing, the space with each of the service flaps in relation to the generated negative pressure communicating in connection. If the collecting space is arranged in the housing of the comber, the pressure sensor interacts in particular with the collecting space. It is of secondary importance whether the actual pressure sensor is arranged inside the housing; this can for example also be connected to the housing and in particular to the collecting space via a vacuum hose, the sensor with the sensor means not necessarily being located within the housing or not within the Collection space must be arranged.

Der Drucksensor ist mit weiterem Vorteil mit einer Steuerung elektrisch verbunden, wobei die Steuerung dazu ausgebildet ist, den Betrieb der Kämmeinheiten zu stoppen, wenn der Drucksensor eine mit der Öffnung einer Klappe einhergehende Druckänderung sensiert und ein korrespondierendes Signal an die Steuerung übermittelt. Darüber hinaus kann die Erkennung einer geöffneten Serviceklappe über ein Anzeigemittel angezeigt werden.The pressure sensor is electrically connected to a controller with a further advantage, the controller being designed to stop the operation of the combing units when the pressure sensor senses a pressure change associated with the opening of a flap and transmits a corresponding signal to the controller. In addition, the detection of an open service flap can be displayed via a display means.

Gemäß einer weiteren Variante der Erfindung ist das Sensorelement durch einen optischen Sensor gebildet. Hierfür ist ein Mittel zur Erzeugung einer Lichtschranke mit wenigstens einem Lichtstrahl vorgesehen, wobei der optische Sensor zur Wechselwirkung mit dem Lichtstrahl ausgebildet ist. Der Lichtstrahl wird dabei so angeordnet, dass die Öffnung einer Serviceklappe beispielsweise den Lichtstrahl unterbricht, und befinden sich die Serviceklappen in einer gemeinsamen Reihe, so kann der Lichtstrahl parallel zur gemeinsamen Reihe verlaufen. Wird eine beliebige Serviceklappe geöffnet, so wird der Lichtstrahl bereits unterbrochen, welche Unterbrechung der optische Sensor erkennen kann.According to a further variant of the invention, the sensor element is formed by an optical sensor. For this purpose, a means for generating a light barrier with at least one light beam is provided, the optical sensor being designed to interact with the light beam. The light beam is arranged in such a way that the opening of a service flap interrupts the light beam, for example, and if the service flaps are in a common row, the light beam can run parallel to the common row. If any service flap is opened, the light beam is already interrupted, which interruption the optical sensor can detect.

Auf gleiche Weise wird der optische Sensor dabei mit der Steuerung elektrisch verbunden, wobei die Steuerung dazu ausgebildet ist, den Betrieb der Kämmeinheiten zu stoppen, wenn der optische Sensor den Lichtstrahl oder eine Unterbrechung des Lichtstrahls sensiert und ein korrespondierendes Signal an die Steuerung übermittelt.In the same way, the optical sensor is electrically connected to the controller, the controller being designed to stop the operation of the combing units when the optical sensor senses the light beam or an interruption of the light beam and transmits a corresponding signal to the controller.

Die Kämmmaschine ist insbesondere so ausgeführt, dass ein Absaugkanal im oder am Gehäuse angeordnet ist, wobei der Absaugkanal den Sammelraum bildet, und der Absaugkanal steht mit den Kämmeinheiten und mit den Serviceklappen fluidisch in Verbindung. Saugt die Absaugung über den Absaugkanal die ausgekämmten Bestandteile aus den Kämmeinheiten ab, so kann das Sensorelement mit besonderem Vorteil am oder im Absaugkanal angeordnet werden. Dabei ist das Sensorelement vorzugsweise als Drucksensor oder als Strömungssensor ausgebildet.The combing machine is designed in particular so that a suction channel is arranged in or on the housing, the suction channel forming the collecting space, and the suction channel being in fluid connection with the combing units and with the service flaps. If the suction system sucks the combed-out components from the combing units via the suction channel, the sensor element can be arranged with particular advantage on or in the suction channel. The sensor element is preferably designed as a pressure sensor or as a flow sensor.

Mit besonderem Vorteil weist der Absaugkanal eine Anschlussstelle zum Anschluss der Absaugung auf, wobei das Sensorelement nahe oder angrenzend an die Anschlussstelle angeordnet ist. An der Anschlussstelle herrscht die größte Strömung vor, da gesammelt alle Strömungen aus den einzelnen Kämmeinheiten über die Anschlussstelle abgesaugt werden, und das Öffnen einer einzigen Serviceklappe führt bereits zu einer deutlichen Veränderung der Druck- und/oder Strömungsverhältnisse innerhalb des Absaugkanals.The suction channel particularly advantageously has a connection point for connecting the suction, the sensor element being arranged close to or adjacent to the connection point. At the junction the largest flow prevails, since all flows from the individual combing units are sucked out collectively via the connection point, and opening a single service flap already leads to a significant change in the pressure and / or flow conditions within the suction channel.

Weitere, die Erfindung verbessernde Maßnahmen werden nachstehend gemeinsam mit der Beschreibung eines bevorzugten Ausführungsbeispiels der Erfindung anhand der Figuren näher dargestellt. Es zeigen:

Figur 1
ein erstes Ausführungsbeispiel einer Kämmmaschine mit einem Sensorelement, das als Drucksensor ausgeführt ist und beispielhaft im Gehäuse der Kämmmaschine angeordnet ist,
Figur 2
ein weiteres Ausführungsbeispiel einer Kämmmaschine mit einem Sensorelement, welches als optischer Sensor ausgebildet ist und
Figur 3
eine perspektivische Ansicht eines Absaugkanals zur Bildung eines Sammelraums mit einer angeschlossenen Absaugung, wobei mit dem Absaugkanal mehrere Serviceklappen fluidisch in Verbindung stehen, wobei ein Sensorelement am Absaugkanal angeordnet ist.
Further measures improving the invention are shown in more detail below together with the description of a preferred exemplary embodiment of the invention with reference to the figures. Show it:
Figure 1
a first embodiment of a combing machine with a sensor element which is designed as a pressure sensor and is arranged, for example, in the housing of the combing machine,
Figure 2
a further embodiment of a combing machine with a sensor element which is designed as an optical sensor and
Figure 3
a perspective view of a suction channel to form a collecting space with a connected suction, wherein a plurality of service flaps are fluidically connected to the suction channel, wherein a sensor element is arranged on the suction channel.

Die Figuren 1 und 2 zeigen in schematischer Weise jeweils eine Kämmmaschine 1 mit einem Gehäuse 10. Im Gehäuse 10 sind mehrere Kämmeinheiten 11 aufgenommen, die zur Bearbeitung von an die Kämmeinheiten 11 herangeführten, nicht näher dargestellten Wattenwickel ausgebildet sind. Vorderseitig im Gehäuse 10 sind beispielhaft acht Serviceklappen 14 angeordnet, wobei jeweils Serviceklappen im Schließzustand und Serviceklappen im Öffnungszustand gezeigt sind.the Figures 1 and 2 each schematically show a combing machine 1 with a housing 10. In the housing 10, several combing units 11 are accommodated, which are designed for processing lap laps, not shown in detail, which are brought up to the combing units 11. Eight service flaps 14 are arranged by way of example on the front side of the housing 10, with service flaps being shown in the closed state and service flaps in the open state.

Die Kämmmaschine weist ferner eine Steuerung 17 auf, die mit den Kämmeinheiten 11 verbunden ist und über die die Kämmeinheiten 11 gesteuert werden. Eine Absaugung 12 ist schematisch dargestellt und saugt über einen Luftstrom die ausgekämmten Bestandteile aus den Wattenwickel ab. Vereinfachend ist dabei die Absaugung 12 lediglich mit dem Gehäuse 10 verbunden, wobei innerhalb des Gehäuses 10 in nicht näher gezeigter Weise ein Sammelraum 13 gebildet ist, in dem die ausgekämmten Bestandteile aus den Kämmeinheiten 11 gesammelt werden und aus dem mit der Absaugung 12 über einen Unterdruck-Luftstrom die ausgekämmten Bestandteile abgeführt werden. Weiterhin ist ein Anzeigemittel 23 dargestellt, das beispielsweise in Form eines bedienbaren Bildschirms ausgeführt ist.The combing machine also has a controller 17 which is connected to the combing units 11 and via which the combing units 11 are controlled. A suction device 12 is shown schematically and sucks the combed-out components from the wadding by means of an air stream. To simplify matters, the suction device 12 is only connected to the housing 10, a collecting space 13 being formed within the housing 10 in a manner not shown in more detail, in which the combed-out components are collected from the combing units 11 and from that with the suction device 12 via a negative pressure -Air flow, the combed-out components are removed. Furthermore, a display means 23 is shown, which is implemented, for example, in the form of an operable screen.

Figur 1 zeigt ein erstes Ausführungsbeispiel einer Kämmmaschine 1, die ein Sensorelement 15 aufweist, das als Drucksensor 16 ausgebildet ist. Der Drucksensor 16 dient zur Überwachung des Druckes im Sammelraum 13, der lediglich vereinfachend durch das Gehäuse 10 wiedergegeben ist. Die Absaugung 12 erzeugt einen Unterdruck im Sammelraum 13, der sich schlagartig verändert, wenn eine der Serviceklappen 14 geöffnet wird. Die Einströmung von Luft durch die Kämmeinheiten 11 sind mit Pfeilen angedeutet, und sind alle Serviceklappen 14 geschlossen, stellt sich ein Solldruck im Sammelraum 13 ein. Wird eine der Serviceklappen 14 geöffnet, so ändert sich der Solldruck im Sammelraum 13, da ein weiterer Strömungspfad mit jeder geöffneten Serviceklappe 14 entsteht, durch den Luft in den Sammelraum 13 gelangen kann. Insbesondere verringert sich der Unterdruck im Sammelraum 13, und die Strömungsgeschwindigkeit der Absaugluft, insbesondere durch die Absaugung 12 hindurch, erhöht sich. Figure 1 shows a first embodiment of a combing machine 1, which has a sensor element 15 which is designed as a pressure sensor 16. The pressure sensor 16 is used to monitor the pressure in the collecting space 13, which is only shown in a simplified manner by the housing 10. The suction 12 generates a negative pressure in the collecting space 13, which changes suddenly when one of the service flaps 14 is opened. The inflow of air through the combing units 11 are indicated by arrows, and if all service flaps 14 are closed, a setpoint pressure is established in the collecting space 13. If one of the service flaps 14 is opened, the setpoint pressure in the collecting space 13 changes, since a further flow path is created with each opened service flap 14, through which air can reach the collecting space 13. In particular, the negative pressure in the collecting space 13 is reduced and the flow rate of the suction air, in particular through the suction 12, increases.

Der Drucksensor 16 ist mit der Steuerung 17 verbunden, und erkennt der Drucksensor 16 eine Veränderung des Solldruckes im Sammelraum 13, so ist durch die Steuerung 17 die Möglichkeit gegeben, die Kämmmaschine 1 wenigstens vorübergehend außer Betrieb zu setzen. Dadurch wird eine Sicherheitseinrichtung geschaffen, mit der verhindert wird, dass durch die Serviceklappe 14 insbesondere bewegte Teile der Kämmeinheit 11 erreichbar sind. Dadurch wird ein mögliches Verletzungsrisiko unterbunden.The pressure sensor 16 is connected to the controller 17, and if the pressure sensor 16 detects a change in the setpoint pressure in the collecting chamber 13, the controller 17 gives the possibility of To put comber 1 at least temporarily out of operation. This creates a safety device with which it is prevented that particularly moving parts of the combing unit 11 can be reached through the service flap 14. This prevents a possible risk of injury.

Figur 2 zeigt eine weitere Variante zur Bildung des Sensorelementes 15, welches als optischer Sensor 18 ausgebildet ist. Der optische Sensor 18 wirkt mit einem Lichtstrahl 20 zusammen, der erzeugt werden kann durch Mittel 19, beispielsweise eine Diode oder eine Laserstrahlquelle. Wird eine der Serviceklappen 14 geöffnet, so wird der Lichtstrahl 20 unterbrochen, wobei die Unterbrechung durch den optischen Sensor 18 erkannt werden kann. Auf gleiche Weise wie in Zusammenhang mit der Variante 1 gemäß Figur 1 beschrieben ermöglicht dabei die Verbindung des optischen Sensors 18 mit der Steuerung 17 das vorübergehende Abschalten der Kämmmaschine 1. Figure 2 shows a further variant for forming the sensor element 15, which is designed as an optical sensor 18. The optical sensor 18 interacts with a light beam 20 which can be generated by means 19, for example a diode or a laser beam source. If one of the service flaps 14 is opened, the light beam 20 is interrupted, and the interruption can be detected by the optical sensor 18. In the same way as in connection with variant 1 according to Figure 1 As described, the connection of the optical sensor 18 to the controller 17 enables the combing machine 1 to be switched off temporarily.

Mit weiterem Vorteil kann die Anordnung auch so verbessert werden, dass mit einem optischen Sensor 18 auch eine jeweilige Serviceklappe 14 in einem Öffnungszustand erkannt werden kann, da die Wegstrecke zwischen dem Sensorelement 15 und dem Mittel 19 zur Erzeugung der Lichtschranke gemessen werden kann. Dabei sind Sensoren 18 bekannt, die das Mittel 19 zur Erzeugung der Lichtschranke bereits umfassen. Demgemäß sind der optische Sensor 18 und das Mittel 19 zur Erzeugung der Lichtschranke in einer baulichen Einheit ausgeführt. Über eine Wegstreckenmessung kann dabei eine entsprechend geöffnete Serviceklappe 14 identifiziert werden, wodurch zudem die Möglichkeit besteht, über die Steuerung alle Kämmeinheiten 11 außer Betrieb zu setzen, oder alternativ entsprechend dem verwendeten Antriebskonzept auch nur Teile oder eine entsprechend zugeordnete Kämmeinheit 11 außer Betrieb zu setzen.With a further advantage, the arrangement can also be improved so that a respective service flap 14 can also be detected in an open state with an optical sensor 18, since the distance between the sensor element 15 and the means 19 for generating the light barrier can be measured. Sensors 18 are known which already include the means 19 for generating the light barrier. Accordingly, the optical sensor 18 and the means 19 for generating the light barrier are designed in one structural unit. A correspondingly opened service flap 14 can be identified via a distance measurement, which also makes it possible to put all combing units 11 out of operation via the control, or alternatively, depending on the drive concept used, only put parts or a correspondingly assigned combing unit 11 out of operation.

In Figur 3 ist eine perspektivische Ansicht eines Sammelraums 13 mit mehreren über diesem angeordneten Serviceklappen 14 gezeigt. Der Sammelraum 13 ist als ein Absaugkanal 21 ausgebildet, welcher endseitig eine Anschlussstelle 22 aufweist. Über die Anschlussstelle 22 des Absaugkanals 21 ist die Absaugung 12 am Absaugkanal 21 angeordnet, und nahe an der Anschlussstelle 22 ist ein Sensorelement 15 angeordnet, welches als Drucksensor 16 ausgebildet ist. An der gezeigten Stelle ist eine Veränderung der Druckverhältnisse und/oder der Strömung der mit der Absaugung 12 aus dem Absaugkanal 21 abgesaugten Luft besonders stark, sodass eine sichere Sensierung wenigstens einer der gezeigten Serviceklappen 14 erfolgen kann.In Figure 3 a perspective view of a collecting space 13 with a plurality of service flaps 14 arranged above it is shown. The collecting space 13 is designed as a suction channel 21 which has a connection point 22 at the end. The suction device 12 is arranged on the suction channel 21 via the connection point 22 of the suction channel 21, and a sensor element 15, which is designed as a pressure sensor 16, is arranged close to the connection point 22. At the point shown, a change in the pressure conditions and / or the flow of the air sucked out of the suction channel 21 with the suction device 12 is particularly strong, so that reliable sensing of at least one of the service flaps 14 shown can take place.

BezugszeichenReference number

11
KämmmaschineComber
1010
Gehäusecasing
1111th
KämmeinheitCombing unit
1212th
AbsaugungSuction
1313th
SammelraumCollection room
1414th
ServiceklappeService flap
1515th
SensorelementSensor element
1616
DrucksensorPressure sensor
1717th
Steuerungsteering
1818th
optischer Sensoroptical sensor
1919th
Mittel zur Erzeugung einer LichtschrankeMeans for generating a light barrier
2020th
LichtstrahlBeam of light
2121
AbsaugkanalSuction duct
2222nd
AnschlussstelleJunction
2323
AnzeigemittelDisplay means

Claims (6)

  1. A combing machine (1) having a plurality of combing units (11) accommodated in a common housing (10), which are formed for treating lap rolls guided towards the combing units (11), wherein a suction (12) is provided, by means of which the combed out components are guided from at least one collecting compartment (13) out of the combing units (11), and wherein each combing unit (11) has an associated service opening with a service flap (14), through which the collecting compartment (13) is accessible from an outside, characterized in that a sensor element (15) is provided, which is formed as a pressure sensor (16), with which is monitorable the closed condition of at least two service flaps (14), wherein the sensor element (15) is electrically connected to a control (17), wherein the control (17) is formed for stopping the operation of the combing units (11), if the pressure sensor (16) senses a pressure change and transmits a corresponding signal to the control (17).
  2. The combing machine (1) according to claim 1, characterized in that the one sensor element (15) is disposed and configured such that the closed condition of all service flaps (14) is monitorable with said sensor element (15).
  3. The combing machine (1) according to claim 1, characterized in that the pressure sensor (16) is disposed at a pressure measuring location within the housing (10), which is in communicating connection with each one of the service flaps (14) with regard to the created vacuum.
  4. The combing machine (1) according to any of the aforementioned claims, characterized in that a suction channel (21) is disposed in or at the housing (10), which forms the collecting compartment (13) and which is in fluidic connection with the combing units (11) and with the service flaps (14), and wherein the suction (12) suctions the combed-out components from the combing units (11) via the suction channel (21), wherein the sensor element (15) is disposed at or in the suction channel (21).
  5. The combing machine (1) according to claim 4, characterized in that the suction channel (21) includes a connecting location (22) for connecting the suction (12), wherein the sensor element (15) is disposed next to or adjoining the connecting location (22).
  6. A combing machine (1) having a plurality of combing units (11) accommodated in a common housing (10), which are formed for treating lap rolls guided towards the combing units (11), wherein a suction (12) is provided, with which the combed out components are guided from at least one collecting compartment (13) out of the combing units (11), and wherein each combing unit (11) has an associated service opening with a service flap (14), through which the collecting compartment (13) is accessible from the outside, characterized in that one sensor element (15) is provided, which is formed as an optical sensor (18) with a distance measurement, with which is monitorable and identifiable the closed condition of at least two service flaps (14), wherein a means (19) for generating a light barrier with at least one light ray (20) is provided, and in that the optical sensor (18) is formed for interaction with the light ray (20), wherein the distance between the sensor element (15) and the means for generating the light barrier can be measured, wherein the optical sensor (18) is electrically connected to a control (17), and the control (17) is formed for stopping the operation of parts of or of all the combing units (11), if the optical sensor (18) senses the light ray (20) or an interruption of the light ray and transmits a corresponding signal to the control (17).
EP18171125.0A 2017-06-14 2018-05-08 Combing machine Active EP3415668B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017113089.6A DE102017113089A1 (en) 2017-06-14 2017-06-14 comber

Publications (2)

Publication Number Publication Date
EP3415668A1 EP3415668A1 (en) 2018-12-19
EP3415668B1 true EP3415668B1 (en) 2021-12-15

Family

ID=62142952

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18171125.0A Active EP3415668B1 (en) 2017-06-14 2018-05-08 Combing machine

Country Status (3)

Country Link
EP (1) EP3415668B1 (en)
CN (1) CN109082734B (en)
DE (1) DE102017113089A1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3925533B2 (en) * 2004-11-05 2007-06-06 村田機械株式会社 Spinning apparatus and fiber accumulation state detection method
JP4821644B2 (en) * 2007-02-21 2011-11-24 株式会社豊田自動織機 Spinning machine
CH703192A1 (en) * 2010-05-28 2011-11-30 Rieter Ag Maschf Monitoring apparatus on a textile machine.
CH704372A2 (en) * 2011-01-20 2012-07-31 Rieter Ag Maschf Combing machine with a cover.
JP2013253346A (en) * 2012-06-07 2013-12-19 Toyota Industries Corp Comber
CH710260A2 (en) 2014-10-16 2016-04-29 Rieter Ag Maschf Comber.

Also Published As

Publication number Publication date
EP3415668A1 (en) 2018-12-19
CN109082734A (en) 2018-12-25
DE102017113089A1 (en) 2018-12-20
CN109082734B (en) 2021-10-22

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