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EP0564408A1 - Combing machine - Google Patents

Combing machine Download PDF

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Publication number
EP0564408A1
EP0564408A1 EP93810216A EP93810216A EP0564408A1 EP 0564408 A1 EP0564408 A1 EP 0564408A1 EP 93810216 A EP93810216 A EP 93810216A EP 93810216 A EP93810216 A EP 93810216A EP 0564408 A1 EP0564408 A1 EP 0564408A1
Authority
EP
European Patent Office
Prior art keywords
shaft
tear
cylinder
combing
suction
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.)
Granted
Application number
EP93810216A
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German (de)
French (fr)
Other versions
EP0564408B1 (en
Inventor
Clement Heinz
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.)
Maschinenfabrik Rieter AG
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Maschinenfabrik Rieter AG
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Publication of EP0564408A1 publication Critical patent/EP0564408A1/en
Application granted granted Critical
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    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01GPRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G19/00Combing machines
    • D01G19/06Details
    • D01G19/28Air draught or like pneumatic arrangements
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01GPRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G19/00Combing machines
    • D01G19/06Details
    • D01G19/22Arrangements for removing, or disposing of, noil or waste

Definitions

  • the invention relates to a combing machine according to the preamble of claim 1.
  • the combing suction shaft primarily serves to discharge the combs pneumatically. Combs are combed out from the fiber whiskers by the round comb segment and usually by a fixed comb from the fiber whiskers, which are torn off by the tear-off cylinder and the tear-off pressure roller from the cotton lying in the forceps aggregate.
  • the air flow sucked between the tear-off cylinder and the pliers unit into the combing suction shaft has the desired effect of laying the fleece end sections fed back by the tear-off cylinder down on the circumference of the tear-off cylinder, so that combed fiber fibers that go from the pliers unit to the tear-off cylinder can be smoothly placed on the fleece end sections, in order to then be soldered to them.
  • this desired effect often does not occur to the extent necessary.
  • Air currents caused by the rotating round comb shaft and the rotating round comb brush in the combing suction shaft also have a disruptive effect. In particular, a pressure surge occurs under the tear-off cylinder in the Kämmlings extraction shaft whenever the circular comb segment enters the circular comb brush.
  • the object of the invention is to design the combing machine specified at the outset in such a way that a sufficient laying down of the fed-back nonwoven end sections on the circumference of the tear-off cylinder can be ensured without disruptive influence on the fiber whiskers moving from the forceps unit to the tear-off cylinder.
  • an additional suction air shaft is arranged in front of the combing device suction shaft and that the additional suction air shaft has an upper inlet opening which is arranged in the tear-off cylinder in such a way that air sucked into the inlet opening causes a tangential air flow at the tear-off cylinder , which applies each fleece end section fed back by the tear-off cylinder over an angle of at least 180 °, measured from the nip between the tear-off cylinder and the tear-off pressure roller, to the circumference of the tear-off cylinder.
  • the additional suction air duct is connected to a suitable vacuum source. It is easiest if the additional suction air shaft communicates with the combing suction shaft, in which there is already a negative pressure during operation, at a point below the circular comb brush. If the additional suction air shaft above this point is separated from the combing suction shaft in which the round comb shaft and the round comb brush rotate, there is a uniform, practically non-pulsating flow in the additional suction air shaft and along the tear-off cylinder, with which the returned fleece end sections reliably come into contact the circumference of the tear-off cylinder can be created. In addition, the uniform suction air flow also ensures that the soldering area is kept clean from dust and impurities more effectively than is possible with a pulsating flow.
  • the fed-back nonwoven end sections are applied to the circumference of the tear-off cylinder through an angle of at least 180 ° by the air flow, which is sucked forward into the additional suction duct through the upper edge of the front wall of the combing duct .
  • a combing machine contains a forceps unit with a forceps frame 1, which can be moved back and forth by forceps cranks 2, which are articulated at its rear end, between the illustrated front end position and a rear end position.
  • front supports 3 are articulated, which can be pivoted about the axis of a round comb shaft 4 are.
  • the pliers unit includes a lower clamp plate 5 carried by the clamp frame 1 and an upper clamp plate 6 which is supported by upper clamp arms 7 which are pivotally connected to the clamp frame 1 about an axis 8.
  • a cotton wool W to be combed is clamped between the front edge of the lower forceps plate 5 and the lower edge of the upper forceps plate 6, and a fiber beard protruding from the forceps unit is combed out by a circular comb segment 9, which is carried on the rotating round comb shaft 4 is.
  • the front edge of the lower pliers plate 5 and the lower edge of the upper pliers plate 6 thus form a clamping area for clamping the cotton wool W to be combed.
  • a tear-off cylinder 10 is mounted in the frame of the combing machine at a point which lies just before the front edge of the lower jaw plate 5 when the forceps unit is in its front end position shown.
  • a tear-off pressure roller 11 interacts with the tear-off cylinder 10 and presses a combing machine fleece V made of combed fiber material against the tear-off cylinder 10.
  • the tear-off cylinder 10 and the tear-off pressure roller 11 are rotated back and forth with a pilgrim step movement. During the reverse rotation, they feed back an end section V.1 of the fleece V, so that a combed fiber beard W.1, which is moved from the pliers assembly to the tear-off cylinder 10, can lie on the fleece end section V.1.
  • the tear-off cylinder 10 and the tear-off pressure roller 11 are rotated forward and pull the fleece end section V.1 together with the fiber beard W.1 placed thereon, which has been pushed forward by a predetermined amount of food with respect to the tongs unit, back into its clamping line, the The tip of the fiber beard W.1 is torn off from the cotton wool W lying in the pliers unit.
  • the fibers of the fiber beard W.1 captured by the tear-off cylinder 10 are generally pulled through a fixed comb (not shown).
  • a combing duct 12 is arranged in the usual way.
  • the round comb shaft 4, which carries the round comb segment 9, and a round comb brush 13 extend transversely through the combing suction shaft 12.
  • a front wall 14 of the shaft 12 has an upper edge which runs adjacent to the tear-off cylinder 10.
  • a rear wall 15 of the shaft 12 has an upper edge which runs adjacent to the movement path of the circular comb segment 9.
  • An adjustable throttle plate 17 extends into the connecting piece 16. The size of the extracted air flow can be regulated by moving the throttle plate 17.
  • An additional suction air shaft 18 is arranged in front of the combing suction shaft 12 and communicates with the combing suction shaft 12 at a location below the circular comb brush 13.
  • the lower end of the additional suction air shaft 18 opens between the round comb brush 13 and the socket 16 into the combing suction shaft 12.
  • Periodic turbulent air flows or pressure fluctuations caused by the rotation of the round comb shaft 4 and the round comb brush therefore only influence the air flow through the additional suction air shaft 18 insignificant.
  • An adjustable throttle plate 19 extends into the additional suction air shaft 18. By moving the throttle plate 19, the width of a slot 20, which is delimited by an edge of the throttle plate 19 and a wall opposite this edge, and thus the size of the air flow by the additional one Regulate suction duct 18.
  • the additional suction air shaft 18 is expediently limited, as shown, on the one hand by the front wall 14 of the combing suction shaft 12 and on the other hand by an additional front wall 21.
  • the front wall 21 can also contain a slot 22 through which some air can pass can be sucked from the environment in the lower region of the additional suction duct 18.
  • the slot 22 can be limited by an adjustable plate 23, the displacement of which allows the width of the slot 22 and thus the proportion of the air drawn in from the environment to be regulated.
  • the additional suction duct 18 has an upper inlet opening 18.1, which runs adjacent to the circumference of the tear-off cylinder 10 in such a way that the air flow which is sucked forward between the upper edge of the front wall 14 and the circumference of the tear-off cylinder 10 into the additional suction duct 18 each Fleece end section V.1 fed back from the tear-off cylinder 10 is sucked around the rear of the tear-off cylinder 10 and applied to the circumference of the tear-off cylinder 10 over an angle of more than 180 °, measured from the clamping line between the tear-off cylinder 10 and the tear-off pressure roller 11.
  • the half-plane starting from the axis of the tear-off cylinder 10 and containing the axis of the tear-off pressure roller 11 (and the clamping line) forms with the half-plane starting from the axis of the tear-off cylinder 10, which is the narrowest point of the passage gap between the tear-off cylinder 10 and the contains the upper edge of the front wall 14, an angle measured at the rear around the tear-off cylinder 10 of more than 180 °.

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

Abstract

In the combing machine, a doffing cylinder (10) is rotatable to and fro, in order to feed back a respective end portion (V.1) of a fleece (V) and subsequently doffs fibre tuft (W.1), laid onto this end portion (V.1), from a gripper unit (1, 5, 6) movable to and fro. Arranged under the doffing cylinder (10) is a noil suck-off shaft (12), in which a circular comb shaft (4) and a circular comb brush (13) rotate. Located in front of the noil suck-off shaft (12) is a additional suction-air shaft (18) which communicates with the noil suck-off shaft (12) at a point located below the circular comb brush (13), so that pressure fluctuations caused by the rotation of the circular comb shaft (4) and of the circular comb brush (13) bring about only insignificant fluctuations of the air stream through the additional suction-air shaft (18). The upper inlet orifice (18.1) of the additional suction-air shaft (18) is arranged in the region of the doffing cylinder (10) in such a way that air sucked into the inlet orifice (18.1) lays each fed-back fleece end portion (V.1) onto the circumference of the doffing cylinder (10) over an angle of at least 180 DEG . The fibre tufts (W.1) moved by the gripper unit (1, 5, 6) can thus be laid, without compression, onto the fleece end portion (V.1). At the same time, each fleece end portion (V.1) is held together as a result of bearing contact on the doffing cylinder (10). <IMAGE>

Description

Die Erfindung bezieht sich auf eine Kämmaschine gemäss dem Oberbegriff des Patentanspruchs 1.The invention relates to a combing machine according to the preamble of claim 1.

Solche Kämmaschinen sind bekannt. Der Kämmlings-Absaugschacht dient darin primär dazu, die Kämmlinge pneumatisch abzuführen. Kämmlinge werden durch das Rundkammsegment aus vom Zangenaggregat gehaltenen Faserbärten und in der Regel durch einen Fixkamm aus den Faserbärten ausgekämmt, die durch den Abreisszylinder und die Abreissdruckwalze von der im Zangenaggregat liegenden Watte abgerissen werden. Zusätzlich hat der zwischen dem Abreisszylinder und dem Zangenaggregat hindurch in den Kämmlings-Absaugschacht gesaugte Luftstrom die erwünschte Wirkung, die durch den Abreisszylinder zurückgespeisten Vlies-Endabschnitte auf dem Umfang des Abreisszylinders nach unten zu legen, so dass sich ausgekämmte Faserbärte, die vom Zangenaggregat zum Abreisszylinder hin bewegt werden, glatt auf die Vlies-Endabschnitte legen können, um dann mit diesen verlötet zu werden. Diese erwünschte Wirkung tritt jedoch häufig nicht im erforderlichen Ausmass ein. Störend wirken u.a. Luftströmungen, die im Kämmlings-Absaugschacht durch die rotierende Rundkammwelle und die ebenfalls rotierende Rundkammbürste erzeugt werden. Insbesondere entsteht im Kämmlings-Absaugschacht unter dem Abreisszylinder jedesmal ein Druckstoss, wenn das Rundkammsegment in die Rundkammb ürste eintritt. Es ist auch nicht möglich, die vorstehend angegebene erwünschte Wirkung durch Erhöhen des Unterdruckes im Kämmlings-Absaugschacht zu verstärken, weil durch die verstärkte Saugluftströmung zwischen Abreisszylinder und Zangenaggregat auch die ausgekämmten Faserbärte, die vom Zangenaggregat zum Abreisszylinder hin bewegt werden, stärker nach unten gebogen würden, so dass sie sich nicht glatt auf die zurückgespeisten Vlies-Endabschnitte legen, sondern mit diesen kollidieren bzw. sich an diesen stauchen würden.Such combing machines are known. The combing suction shaft primarily serves to discharge the combs pneumatically. Combs are combed out from the fiber whiskers by the round comb segment and usually by a fixed comb from the fiber whiskers, which are torn off by the tear-off cylinder and the tear-off pressure roller from the cotton lying in the forceps aggregate. In addition, the air flow sucked between the tear-off cylinder and the pliers unit into the combing suction shaft has the desired effect of laying the fleece end sections fed back by the tear-off cylinder down on the circumference of the tear-off cylinder, so that combed fiber fibers that go from the pliers unit to the tear-off cylinder can be smoothly placed on the fleece end sections, in order to then be soldered to them. However, this desired effect often does not occur to the extent necessary. Air currents caused by the rotating round comb shaft and the rotating round comb brush in the combing suction shaft also have a disruptive effect. In particular, a pressure surge occurs under the tear-off cylinder in the Kämmlings extraction shaft whenever the circular comb segment enters the circular comb brush. It is also not possible to increase the above-mentioned desired effect by increasing the negative pressure in the combing suction shaft, because the combed fiber beards, which are moved from the pliers unit to the tear-off cylinder, would also be bent downward more by the increased suction air flow between the tear-off cylinder and the pliers unit , so that they do not lie flat on the fed-back fleece end sections, but collide with them or would compress them.

Die Aufgabe der Erfindung besteht darin, die eingangs angegebene Kämmaschine so auszubilden, dass darin ein ausreichendes Abwärtslegen der zurückgespeisten Vlies-Endabschnitte auf dem Umfang des Abreisszylinders ohne störende Beeinflussung der vom Zangenaggregat zum Abreisszylinder hin bewegten Faserbärte gewährleistet werden kann.The object of the invention is to design the combing machine specified at the outset in such a way that a sufficient laying down of the fed-back nonwoven end sections on the circumference of the tear-off cylinder can be ensured without disruptive influence on the fiber whiskers moving from the forceps unit to the tear-off cylinder.

Die Aufgabe wird in der erfindungsgemässen Kämmaschine dadurch gelöst, dass vor dem Kämmlings-Absaugschacht ein zusätzlicher Saugluftschacht angeordnet ist und dass der zusätzliche Saugluftschacht eine obere Eintrittsöffnung aufweist, welche derart beim Abreisszylinder angeordnet ist, dass in die Eintrittsöffnung gesaugte Luft eine tangentiale Luftströmung am Abreisszylinder bewirkt, die jeden von dem Abreisszylinder zurückgespeisten Vlies-Endabschnitt über einen Winkel von wenigstens 180°, von der Klemmstelle zwischen Abreisszylinder und Abreissdruckwalze aus gemessen, an den Umfang des Abreisszylinders anlegt.The object is achieved in the combing machine according to the invention in that an additional suction air shaft is arranged in front of the combing device suction shaft and that the additional suction air shaft has an upper inlet opening which is arranged in the tear-off cylinder in such a way that air sucked into the inlet opening causes a tangential air flow at the tear-off cylinder , which applies each fleece end section fed back by the tear-off cylinder over an angle of at least 180 °, measured from the nip between the tear-off cylinder and the tear-off pressure roller, to the circumference of the tear-off cylinder.

Der zusätzliche Saugluftschacht ist an eine geeignete Unterdruckquelle angeschlossen. Am einfachsten ist es, wenn der zusätzliche Saugluftschacht mit dem Kämmlings-Absaugschacht, in welchem im Betrieb ohnehin ein Unterdruck herrscht, an einer unterhalb der Rundkammb ürste liegenden Stelle kommuniziert. Wenn der zusätzliche Saugluftschacht oberhalb dieser Stelle vom Kämmlings-Absaugschacht, in welchem die Rundkammwelle und die Rundkammb ürste rotieren, getrennt ist, herrscht im zusätzlichen Saugluftschacht und entlang des Abreisszylinders eine gleichmässige, praktisch nicht pulsierende Strömung, mit der die zurückgespeisten Vlies-Endabschnitte zuverlässig an den Umfang des Abreisszylinders angelegt werden können. Ueberdies gewährleistet die gleichmässige Saugluftströmung auch ein wirkungsvolleres Sauberhalten des Lötbereiches von Staub und Verunreinigungen, als es mit einer pulsierenden Strömung möglich ist.The additional suction air duct is connected to a suitable vacuum source. It is easiest if the additional suction air shaft communicates with the combing suction shaft, in which there is already a negative pressure during operation, at a point below the circular comb brush. If the additional suction air shaft above this point is separated from the combing suction shaft in which the round comb shaft and the round comb brush rotate, there is a uniform, practically non-pulsating flow in the additional suction air shaft and along the tear-off cylinder, with which the returned fleece end sections reliably come into contact the circumference of the tear-off cylinder can be created. In addition, the uniform suction air flow also ensures that the soldering area is kept clean from dust and impurities more effectively than is possible with a pulsating flow.

Die Verwendung einer eigenen Saugluftleitung zum Abwärtsbiegen von zurückgespeisten Vlies-Endabschnitten ist in einer Wollkämmaschine an sich bekannt, siehe das Dokument FR-A-2 264 899. Die Austrittsöffnung der Saugluftleitung liegt hier im oberen Ende einer Staubabsaugleitung, und mit dem Saugluftstrom werden die Vlies-Endabschnitte nach unten in die Saugluftleitung gesaugt. Das kann nur mit Wolle funktionieren, deren Fasern relativ lang sind. Bei einem Fasermaterial mit kürzeren Fasern, wie Baumwolle, würden durch den Saugluftstrom in der Saugluftleitung Fasern aus den Vlies-Endabschnitten herausgezogen und damit verloren gehen (in die Staubabsaugleitung gelangen).The use of a dedicated suction air line to bend down fed-back fleece end sections is known per se in a wool combing machine, see document FR-A-2 264 899. The outlet opening of the suction air line lies here in the upper end of a dust extraction line, and the fleece end sections are sucked downward into the suction air line with the suction air flow. This can only work with wool, the fibers of which are relatively long. In the case of a fiber material with shorter fibers, such as cotton, the suction air flow in the suction air line would pull fibers out of the fleece end sections and thus be lost (get into the dust extraction line).

Demgegenüber werden in der erfindungsgemässen Kämmaschine die zurückgespeisten Vlies-Endabschnitte durch den Luftstrom, der über den oberen Rand der vorderen Wand des Kämmlings-Absaugschachtes hinaus nach vorn in den zusätzlichen Saugluftschacht gesaugt wird, über einen Winkel von wenigstens 180° an den Umfang des Abreisszylinders angelegt. Dadurch erhalten die Fasern in den Vlies-Endabschnitten genügend Halt, um nicht durch den an einer Seite der Vlies-Endabschnitte vorbeistreichenden Luftstrom aus dem Vlies herausgezogen zu werden. Mit der Anlage der Vlies-Endabschnitte an einem grossen Umfangsbereich des Abreisszylinders wird ferner erreicht, dass Nissen, die an den äussersten Spitzen der Vlies-Endabschnitte hängen, durch den Luftstrom noch erfasst werden, dessen Geschwindigkeit im Bereich der Eintrittsöffnung des zusätzlichen Saugluftschachtes am höchsten ist.In contrast, in the combing machine according to the invention, the fed-back nonwoven end sections are applied to the circumference of the tear-off cylinder through an angle of at least 180 ° by the air flow, which is sucked forward into the additional suction duct through the upper edge of the front wall of the combing duct . This gives the fibers in the nonwoven end sections sufficient hold so that they are not pulled out of the nonwoven by the air flow passing one side of the nonwoven end sections. With the abutment of the fleece end sections on a large circumferential area of the tear-off cylinder, it is further achieved that nits that hang on the outermost tips of the fleece end sections are still captured by the air flow, the speed of which is highest in the area of the inlet opening of the additional suction air shaft .

Ein Ausführungsbeispiel der erfindungsgemässen Kämmaschine wird nachstehend anhand der Zeichnung näher erläutert. Diese zeigt einen schematischen Vertikalschnitt durch Teile einer Kämmaschine.An embodiment of the combing machine according to the invention is explained in more detail below with reference to the drawing. This shows a schematic vertical section through parts of a combing machine.

Gemäss der Zeichnung enthält eine erfindungsgemässe Kämmaschine ein Zangenaggregat mit einem Zangenrahmen 1, der von Zangenkurbeln 2, die an seinem hinteren Ende angelenkt sind, zwischen der dargestellten vorderen Endlage und einer hinteren Endlage hin- und herbewegbar ist. Am vorderen Ende des Zangenrahmens 1 sind Vorderstützen 3 angelenkt, die um die Achse einer Rundkammwelle 4 schwenkbar sind. Zu dem Zangenaggregat gehören eine vom Zangenrahmen 1 getragene Unterzangenplatte 5 und eine Oberzangenplatte 6, die von Oberzangenarmen 7 getragen ist, welche mit dem Zangenrahmen 1 um eine Achse 8 schwenkbar verbunden sind. In der hinteren Endlage des Zangenaggregates ist zwischen dem vorderen Rand der Unterzangenplatte 5 und dem unteren Rand der Oberzangenplatte 6 eine zu kämmende Watte W festgeklemmt, und ein aus dem Zangenaggregat heraus vorstehender Faserbart wird von einem Rundkammsegment 9 ausgekämmt, das auf der rotierenden Rundkammwelle 4 getragen ist. Der vordere Rand der Unterzangenplatte 5 und der untere Rand der Oberzangenplatte 6 bilden also einen Klemmbereich zum Festklemmen der zu kämmenden Watte W.According to the drawing, a combing machine according to the invention contains a forceps unit with a forceps frame 1, which can be moved back and forth by forceps cranks 2, which are articulated at its rear end, between the illustrated front end position and a rear end position. At the front end of the tong frame 1, front supports 3 are articulated, which can be pivoted about the axis of a round comb shaft 4 are. The pliers unit includes a lower clamp plate 5 carried by the clamp frame 1 and an upper clamp plate 6 which is supported by upper clamp arms 7 which are pivotally connected to the clamp frame 1 about an axis 8. In the rear end position of the forceps unit, a cotton wool W to be combed is clamped between the front edge of the lower forceps plate 5 and the lower edge of the upper forceps plate 6, and a fiber beard protruding from the forceps unit is combed out by a circular comb segment 9, which is carried on the rotating round comb shaft 4 is. The front edge of the lower pliers plate 5 and the lower edge of the upper pliers plate 6 thus form a clamping area for clamping the cotton wool W to be combed.

Ein Abreisszylinder 10 ist im Gestell der Kämmaschine an einer Stelle gelagert, die kurz vor dem vorderen Rand der Unterzangenplatte 5 liegt, wenn das Zangenaggregat in seiner dargestellten vorderen Endlage ist. Mit dem Abreisszylinder 10 wirkt eine Abreissdruckwalze 11 zusammen, die ein Kämmaschinenvlies V aus gekämmtem Fasermaterial an den Abreisszylinder 10 andrückt. Der Abreisszylinder 10 und die Abreissdruckwalze 11 werden mit einer Pilgerschrittbewegung hin- und hergedreht. Bei der Rückwärtsdrehung speisen sie einen Endabschnitt V.1 des Vlieses V zurück, so dass sich ein ausgekämmter Faserbart W.1, der vom Zangenaggregat zum Abreisszylinder 10 hin bewegt wird, auf den Vlies-Endabschnitt V.1 legen kann. Anschliessend werden der Abreisszylinder 10 und die Abreissdruckwalze 11 vorwärts gedreht und ziehen den Vlies-Endabschnitt V.1 zusammen mit dem daraufgelegten Faserbart W.1, der bezüglich des Zangenaggregates um einen vorbestimmten Speisebetrag nach vorn geschoben worden ist, wieder in ihre Klemmlinie, wobei die Spitze des Faserbartes W.1 von der im Zangenaggregat liegenden Watte W abgerissen wird. Die vom Abreisszylinder 10 erfassten Fasern des Faserbartes W.1 werden dabei in der Regel durch einen Fixkamm (nicht dargestellt) hindurchgezogen.A tear-off cylinder 10 is mounted in the frame of the combing machine at a point which lies just before the front edge of the lower jaw plate 5 when the forceps unit is in its front end position shown. A tear-off pressure roller 11 interacts with the tear-off cylinder 10 and presses a combing machine fleece V made of combed fiber material against the tear-off cylinder 10. The tear-off cylinder 10 and the tear-off pressure roller 11 are rotated back and forth with a pilgrim step movement. During the reverse rotation, they feed back an end section V.1 of the fleece V, so that a combed fiber beard W.1, which is moved from the pliers assembly to the tear-off cylinder 10, can lie on the fleece end section V.1. Then the tear-off cylinder 10 and the tear-off pressure roller 11 are rotated forward and pull the fleece end section V.1 together with the fiber beard W.1 placed thereon, which has been pushed forward by a predetermined amount of food with respect to the tongs unit, back into its clamping line, the The tip of the fiber beard W.1 is torn off from the cotton wool W lying in the pliers unit. The fibers of the fiber beard W.1 captured by the tear-off cylinder 10 are generally pulled through a fixed comb (not shown).

Unter dem Abreisszylinder 10 und dem Bewegungsweg des vorderen Randes der Unterzangenplatte 5 bzw. des Klemmbereiches des Zangenaggregates ist in üblicher Weise ein Kämmlings-Absaugschacht 12 angeordnet. Die Rundkammwelle 4, die das Rundkammsegment 9 trägt, und eine Rundkammbürste 13 erstrecken sich quer durch den Kämmlings-Absaugschacht 12. Eine vordere Wand 14 des Schachtes 12 hat einen oberen Rand, der benachbart zum Abreisszylinder 10 verläuft. Eine hintere Wand 15 des Schachtes 12 hat einen oberen Rand, der benachbart zur Bewegungsbahn des Rundkammsegmentes 9 verläuft. Am unteren Ende des Kämmlings-Absaugschachtes 12 ist dieser über einen Stutzen 16 mit einem nicht dargestellten Absaugkanal verbunden. In den Stutzen 16 erstreckt sich eine verstellbare Drosselplatte 17. Durch Verschieben der Drosselplatte 17 lässt sich die Grösse des abgesaugten Luftstromes regulieren.Under the tear-off cylinder 10 and the path of movement of the front edge of the lower pliers plate 5 or the clamping area of the pliers assembly, a combing duct 12 is arranged in the usual way. The round comb shaft 4, which carries the round comb segment 9, and a round comb brush 13 extend transversely through the combing suction shaft 12. A front wall 14 of the shaft 12 has an upper edge which runs adjacent to the tear-off cylinder 10. A rear wall 15 of the shaft 12 has an upper edge which runs adjacent to the movement path of the circular comb segment 9. At the lower end of the combing suction shaft 12, the latter is connected via a connecting piece 16 to a suction channel (not shown). An adjustable throttle plate 17 extends into the connecting piece 16. The size of the extracted air flow can be regulated by moving the throttle plate 17.

Vor dem Kämmlings-Absaugschacht 12 ist ein zusätzlicher Saugluftschacht 18 angeordnet, der mit dem Kämmlings-Absaugschacht 12 an einer unterhalb der Rundkammbürste 13 liegenden Stelle kommuniziert. Das untere Ende des zusätzlichen Saugluftschachtes 18 mündet zwischen der Rundkammbürste 13 und dem Stutzen 16 in den Kämmlings-Absaugschacht 12. Durch die Drehung der Rundkammwelle 4 und der Rundkammbürste 13 verursachte periodische turbulente Luftströmungen bzw. Druckschwankungen beeinflussen daher den Luftstrom durch den zusätzlichen Saugluftschacht 18 nur unwesentlich. In den zusätzlichen Saugluftschacht 18 erstreckt sich eine verstellbare Drosselplatte 19. Durch Verschieben der Drosselplatte 19 lässt sich die Breite eines Schlitzes 20, der von einem Rand der Drosselplatte 19 und einer diesem Rand gegenüberliegenden Wand begrenzt ist, und damit die Grösse des Luftstromes durch den zusätzlichen Saugluftschacht 18 regulieren.An additional suction air shaft 18 is arranged in front of the combing suction shaft 12 and communicates with the combing suction shaft 12 at a location below the circular comb brush 13. The lower end of the additional suction air shaft 18 opens between the round comb brush 13 and the socket 16 into the combing suction shaft 12. Periodic turbulent air flows or pressure fluctuations caused by the rotation of the round comb shaft 4 and the round comb brush therefore only influence the air flow through the additional suction air shaft 18 insignificant. An adjustable throttle plate 19 extends into the additional suction air shaft 18. By moving the throttle plate 19, the width of a slot 20, which is delimited by an edge of the throttle plate 19 and a wall opposite this edge, and thus the size of the air flow by the additional one Regulate suction duct 18.

Der zusätzliche Saugluftschacht 18 ist zweckmässig wie dargestellt begrenzt einerseits durch die vordere Wand 14 des Kämmlings-Absaugschachtes 12 und anderseits durch eine zusätzliche Vorderwand 21. Die Vorderwand 21 kann auch noch einen Schlitz 22 enthalten, durch den etwas Luft aus der Umgebung in den unteren Bereich des zusätzlichen Saugluftschachtes 18 gesaugt werden kann. Der Schlitz 22 kann dabei durch eine verstellbare Platte 23 begrenzt sein, durch deren Verschiebung die Breite des Schlitzes 22 und damit der Anteil der aus der Umgebung angesaugten Luft reguliert werden kann.The additional suction air shaft 18 is expediently limited, as shown, on the one hand by the front wall 14 of the combing suction shaft 12 and on the other hand by an additional front wall 21. The front wall 21 can also contain a slot 22 through which some air can pass can be sucked from the environment in the lower region of the additional suction duct 18. The slot 22 can be limited by an adjustable plate 23, the displacement of which allows the width of the slot 22 and thus the proportion of the air drawn in from the environment to be regulated.

Der zusätzliche Saugluftschacht 18 besitzt eine obere Eintrittsöffnung 18.1, welche benachbart zum Umfang des Abreisszylinders 10 derart verläuft, dass der Luftstrom, der zwischen dem oberen Rand der vorderen Wand 14 und dem Umfang des Abreisszylinders 10 nach vorn in den zusätzlichen Saugluftschacht 18 gesaugt wird, jeden vom Abreisszylinder 10 zurückgespeisten Vlies-Endabschnitt V.1 hinten um den Abreisszylinder 10 herumsaugt und über einen Winkel von mehr als 180°, von der Klemmlinie zwischen Abreisszylinder 10 und Abreissdruckwalze 11 aus gemessen, an den Umfang des Abreisszylinders 10 anlegt. Um das zu erreichen, bildet die von der Achse des Abreisszylinders 10 ausgehende und die Achse der Abreissdruckwalze 11 (sowie die Klemmlinie) enthaltende Halbebene mit der von der Achse des Abreisszylinders 10 ausgehenden Halbebene, welche die engste Stelle des Durchtrittsspaltes zwischen dem Abreisszylinder 10 und dem oberen Rand der vorderen Wand 14 enthält, einen hinten um den Abreisszylinder 10 herum gemessenen Winkel von mehr als 180°.The additional suction duct 18 has an upper inlet opening 18.1, which runs adjacent to the circumference of the tear-off cylinder 10 in such a way that the air flow which is sucked forward between the upper edge of the front wall 14 and the circumference of the tear-off cylinder 10 into the additional suction duct 18 each Fleece end section V.1 fed back from the tear-off cylinder 10 is sucked around the rear of the tear-off cylinder 10 and applied to the circumference of the tear-off cylinder 10 over an angle of more than 180 °, measured from the clamping line between the tear-off cylinder 10 and the tear-off pressure roller 11. In order to achieve this, the half-plane starting from the axis of the tear-off cylinder 10 and containing the axis of the tear-off pressure roller 11 (and the clamping line) forms with the half-plane starting from the axis of the tear-off cylinder 10, which is the narrowest point of the passage gap between the tear-off cylinder 10 and the contains the upper edge of the front wall 14, an angle measured at the rear around the tear-off cylinder 10 of more than 180 °.

Claims (6)

Kämmaschine, mit einem hin- und herbewegbaren Zangenaggregat, das einen Klemmbereich zum Festklemmen einer zu kämmenden Watte (W) aufweist, einem Abreisszylinder (10), mit dem eine Abreissdruckwalze (11) zusammenwirkt und der hin- und herdrehbar ist, um jeweils einen Endabschnitt (V.1) eines Vlieses (V) zurückzuspeisen und anschliessend einen auf diesen Endabschnitt gelegten Faserbart (W.1) aus dem Zangenaggreat abzureissen, und einem unter dem Abreisszylinder (10) und dem Bewegungsweg des Klemmbereiches des Zangenaggregates angeordneten Kämmlings-Absaugschacht (12), in welchem eine drehbare Rundkammwelle (4), die ein Rundkammsegment (9) trägt, und eine Rundkammbürste (13) angeordnet sind, wobei der Kämmlings-Absaugschacht (12) eine vordere Wand (14) mit einem oberen Rand aufweist, der benachbart zum Abreisszylinder (10) verläuft, und eine hintere Wand (15) mit einem oberen Rand aufweist, der benachbart zur Bewegungsbahn des Rundkammeegmentes (9) verläuft, dadurch gekennzeichnet, dass vor dem Kämmlings-Absaugschacht (12) ein zusätzlicher Saugluftschacht (18) angeordnet ist und dass der zusätzliche Saugluftschacht (18) eine obere Eintrittsöffnung (18.1) aufweist, welche derart beim Abreisszylinder (10) angeordnet ist, dass in die Eintrittsöffnung (18.1) gesaugte Luft eine tangentiale Luftströmung am Abreisszylinder bewirkt, die jeden von dem Abreisszylinder (10) zurückgespeisten Vlies-Endabschnitt (V.1) über einen Winkel von wenigstens 180°, von der Klemmstelle zwischen Abreisszylinder (10) und Abreissdruckwalze (11) aus gemessen, an den Umfang des Abreisszylinders (10) anlegt.Combing machine, with a reciprocating pliers unit, which has a clamping area for clamping a cotton (W) to be combed, a tear-off cylinder (10) with which a tear-off pressure roller (11) cooperates and which can be rotated back and forth around an end section (V.1) to feed back a fleece (V) and then tear off a fiber beard (W.1) placed on this end section from the pliers aggreat, and a combing suction shaft (12.) Arranged under the tear-off cylinder (10) and the movement path of the clamping area of the pliers unit ) in which a rotatable round comb shaft (4), which carries a round comb segment (9), and a round comb brush (13) are arranged, the combing suction shaft (12) having a front wall (14) with an upper edge which is adjacent runs to the tear-off cylinder (10) and has a rear wall (15) with an upper edge which runs adjacent to the path of movement of the circular comb segment (9), characterized in that net that an additional suction air shaft (18) is arranged in front of the combing suction shaft (12) and that the additional suction air shaft (18) has an upper inlet opening (18.1) which is arranged in the tear-off cylinder (10) in such a way that in the inlet opening ( 18.1) sucked air causes a tangential air flow at the tear-off cylinder, which causes each fleece end section (V.1) fed back from the tear-off cylinder (10) over an angle of at least 180 °, from the nip between the tear-off cylinder (10) and the tear-off pressure roller (11) measured, applied to the circumference of the tear-off cylinder (10). Kämmaschine nach Anspruch 1, dadurch gekennzeichnet, dass der zusätzliche Saugluftschacht (18) mit dem Kämmlings-Absaugschacht (12) an einer unterhalb der Rundkammbürste (13) liegenden Stelle kommuniziert.Combing machine according to claim 1, characterized in that the additional suction air shaft (18) communicates with the combing suction shaft (12) at a location below the circular comb brush (13). Kämmaschine nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der zusätzliche Saugluftschacht (18) begrenzt ist durch die vordere Wand (14) des Kämmlings-Absaugschachtes (12) und eine zusätzliche Vorderwand (21).Combing machine according to claim 1 or 2, characterized in that the additional suction air shaft (18) is limited by the front wall (14) of the combed suction shaft (12) and an additional front wall (21). Kämmaschine nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der zusätzliche Saugluftschacht (18) in seinem unteren Bereich über einen Falschluft-Einlassschlitz (22) einstellbarer Breite mit der Umgebung verbunden ist.Combing machine according to one of claims 1 to 3, characterized in that the additional suction air shaft (18) is connected in its lower region to the surroundings via a width of adjustable air inlet slot (22). Kämmaschine nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der zusätzliche Saugluftschacht (18) mit dem Kämmlings-Absaugschacht (12) über einen Schlitz (20) kommuniziert, dessen Breite verstellbar ist.Combing machine according to one of claims 1 to 4, characterized in that the additional suction air shaft (18) communicates with the combing suction shaft (12) via a slot (20) whose width is adjustable. Kämmaschine nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass das untere Ende des Kämmlinge-Absaugschachtes (12) über einen Schlitz einstellbarer Breite mit einem Absaugkanal verbunden ist.Combing machine according to one of Claims 1 to 5, characterized in that the lower end of the combing suction shaft (12) is connected to a suction channel via an adjustable width slot.
EP19930810216 1992-04-03 1993-03-25 Combing machine Expired - Lifetime EP0564408B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1100/92 1992-04-03
CH110092A CH685301A5 (en) 1992-04-03 1992-04-03 Comber.

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EP0564408A1 true EP0564408A1 (en) 1993-10-06
EP0564408B1 EP0564408B1 (en) 1995-05-17

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JP (1) JPH0610217A (en)
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DE (1) DE59300201D1 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0718421A2 (en) * 1994-12-23 1996-06-26 Maschinenfabrik Rieter Ag Combing machine
DE19629798A1 (en) * 1995-07-26 1997-01-30 Rieter Ag Maschf Suction cleaning of comber heads - uses extension of noil suction duct round detaching rollers to improve cleanliness of detaching roller stripper bars
DE19721163A1 (en) * 1997-05-21 1998-11-26 Rieter Ag Maschf Combing machine
EP1736576A2 (en) 2005-06-24 2006-12-27 Maschinenfabrik Rieter Ag Device for cleaning a combing segment in a combing machine
CN101165239B (en) * 2006-10-20 2011-06-08 特鲁菲舍尔股份有限公司及两合公司 Apparatus for the sorting or selection of a fibre sliver comprising textile fibres
CN101333699B (en) * 2007-06-29 2011-09-07 特鲁菲舍尔股份有限公司及两合公司 Device for sorting or selecting fibers of a fiber bundle containing textile fibers
CN102561233A (en) * 2012-01-22 2012-07-11 王宗楠 Round brush for cleaning road surfaces and preparation method of round brush
WO2016059495A1 (en) * 2014-10-16 2016-04-21 Maschinenfabrik Rieter Ag Extraction apparatus for a combing machine
CN112204178A (en) * 2018-03-30 2021-01-08 马佐里机器纺织股份公司 Combing machine for a front thread and method for operating the combing machine

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Publication number Priority date Publication date Assignee Title
CN109338523A (en) * 2018-12-08 2019-02-15 中原工学院 A high-efficiency comber with cylinder symmetrical configuration
CN109652875B (en) * 2019-01-11 2022-01-07 中原工学院 Flow guiding device of cylinder removing mechanism of cotton spinning combing machine

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US2558706A (en) * 1945-01-04 1951-06-26 Terrell Mach Co Combing machine
CH423565A (en) * 1964-06-05 1966-10-31 Schlumberger Cie N Transfer device for straight comber
CH475379A (en) * 1967-01-09 1969-07-15 Schlumberger Cie N Transfer device for straight comber
DE2139305A1 (en) * 1971-08-05 1973-02-15 Sant Andrea Novara Officine Carding machines - pneumatically controlling fibre transfer and cleaning carding drum
EP0329615A2 (en) * 1988-02-13 1989-08-23 Howa Machinery, Ltd. Combing cylinder utilized for combing machine

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0718421A2 (en) * 1994-12-23 1996-06-26 Maschinenfabrik Rieter Ag Combing machine
EP0718421A3 (en) * 1994-12-23 1997-02-12 Rieter Ag Maschf Combing machine
DE19629798A1 (en) * 1995-07-26 1997-01-30 Rieter Ag Maschf Suction cleaning of comber heads - uses extension of noil suction duct round detaching rollers to improve cleanliness of detaching roller stripper bars
DE19629798B4 (en) * 1995-07-26 2009-12-24 Maschinenfabrik Rieter Ag comber
DE19721163A1 (en) * 1997-05-21 1998-11-26 Rieter Ag Maschf Combing machine
EP1736576A2 (en) 2005-06-24 2006-12-27 Maschinenfabrik Rieter Ag Device for cleaning a combing segment in a combing machine
EP1736576A3 (en) * 2005-06-24 2007-12-19 Maschinenfabrik Rieter Ag Device for cleaning a combing segment in a combing machine
CN101165239B (en) * 2006-10-20 2011-06-08 特鲁菲舍尔股份有限公司及两合公司 Apparatus for the sorting or selection of a fibre sliver comprising textile fibres
CN101333699B (en) * 2007-06-29 2011-09-07 特鲁菲舍尔股份有限公司及两合公司 Device for sorting or selecting fibers of a fiber bundle containing textile fibers
CN101333705B (en) * 2007-06-29 2011-09-14 特鲁菲舍尔股份有限公司及两合公司 Device for fibre finishing or fibre selection of fibre bundles containing textile fibres
CN101333706B (en) * 2007-06-29 2011-09-14 特鲁菲舍尔股份有限公司及两合公司 Apparatus for fibre finishing or fibre selection of fibre slivers containing textile fibres
CN102561233A (en) * 2012-01-22 2012-07-11 王宗楠 Round brush for cleaning road surfaces and preparation method of round brush
WO2016059495A1 (en) * 2014-10-16 2016-04-21 Maschinenfabrik Rieter Ag Extraction apparatus for a combing machine
CN106795657A (en) * 2014-10-16 2017-05-31 里特机械公司 For the aspirator of combing machine
CN106795657B (en) * 2014-10-16 2019-06-04 里特机械公司 Suction unit for combing machine
CN112204178A (en) * 2018-03-30 2021-01-08 马佐里机器纺织股份公司 Combing machine for a front thread and method for operating the combing machine
CN112204178B (en) * 2018-03-30 2022-02-25 马佐里机器纺织股份公司 Combing machine for a front thread and method for operating the combing machine

Also Published As

Publication number Publication date
JPH0610217A (en) 1994-01-18
EP0564408B1 (en) 1995-05-17
CH685301A5 (en) 1995-05-31
DE59300201D1 (en) 1995-06-22

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