EP2044249B1 - Combing machine - Google Patents
Combing machine Download PDFInfo
- Publication number
- EP2044249B1 EP2044249B1 EP07720219A EP07720219A EP2044249B1 EP 2044249 B1 EP2044249 B1 EP 2044249B1 EP 07720219 A EP07720219 A EP 07720219A EP 07720219 A EP07720219 A EP 07720219A EP 2044249 B1 EP2044249 B1 EP 2044249B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- flap
- combing
- machine according
- combing machine
- detaching
- 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.)
- Ceased
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- 239000000835 fiber Substances 0.000 claims abstract description 59
- 239000000463 material Substances 0.000 claims abstract description 18
- 239000003570 air Substances 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 18
- 238000012546 transfer Methods 0.000 claims description 10
- 239000012080 ambient air Substances 0.000 claims description 9
- 230000001360 synchronised effect Effects 0.000 claims 1
- 229920000742 Cotton Polymers 0.000 description 14
- 239000004745 nonwoven fabric Substances 0.000 description 8
- 238000005476 soldering Methods 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910000679 solder Inorganic materials 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 210000000080 chela (arthropods) Anatomy 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 241000283153 Cetacea Species 0.000 description 1
- 241000347389 Serranus cabrilla Species 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- -1 nits Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000009416 shuttering Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
Images
Classifications
-
- 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
- D01G19/14—Drawing-off and delivery apparatus
-
- 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 nipper unit according to the preamble of the main claim. 1
- a combing machine whereby a tear-off roller cooperates with a tear-off segment of a combing roller for the tear-off process, has already been developed by Heilmann in 1845.
- a tear-off roller in this case tear-off cylinder
- the fiber bundle torn off by a tear-off roller in this case tear-off cylinder
- the pair of rollers is driven by a pilgrim step movement.
- the further publication DE-PS 243062 shows an arrangement in which between the tear-off roller and the driven with a vocational step movement solder rollers, an additional pair of rollers is arranged, which is driven with a constant direction of rotation. This should be achieved in relation to the previous solution, an increase in performance by extending the deduction period.
- a roller pair is provided in all cases, which performs a mit movement for the attachment process of a new fiber package to the rear end of the already formed nonwoven. On the one hand, this requires a correspondingly expensive gear, or a complex drive, on the other hand, the size of the Kammspielbread to be achieved is limited.
- the front end of the withdrawn fiber packet must be deflected for the transfer to the respective subsequent pair of rollers. That is, the withdrawal direction of the fiber bundle and the conveying direction to the nip of the subsequent pair of rollers are not rectified and intersect at an angle. This change in the direction of conveyance also represents a limiting element of the amount of possible Kammspieliere.
- the means may preferably consist of a pivotally arranged flap, which is connected to an adjusting device.
- the length of the free end of the flap be dimensioned such that the flap has a protrusion dimension a in this working position. That is, the free end of the flap extends to the dimension a over the intersection of the flap with a tangent, which through the Clamping point of the tear-off roller extends with the tear-off segment of the combing cylinder. This ensures that the combed product can not get into the receiving area of the web-forming device.
- the apparatus for forming a nonwoven fabric comprises a rotatably mounted circulating means provided on its periphery with openings for air passage over its periphery and at least a portion of the interior of the means connected to a vacuum source and a casing is provided, which forms in the discharge region of the withdrawn fiber packet an environmentally sealed space between the tear roller, the enveloping circle of the combing cylinder and the periphery of the rotating means, wherein a portion of the sealed space through the periphery of the means, by a peripheral region the tear-off, a portion of the enveloping circle of the combing cylinder and is formed by the pivotable flap.
- the circulating means can be arranged at a small distance from the enveloping circle of the combing cylinder, without causing any impairment in the formation of nonwoven fabric by the combed components to be removed (short fibers, shell parts, other contaminants, etc.). This is ensured by the corresponding adjustment of the adjustable means provided according to the invention.
- the transfer point of the withdrawn fiber packet to the web-forming device is in this case below the tear-off roller and in the direction of material flow, which is determined by the dispensing direction of the fiber packet from the nip between the tear-off segment and the tear-off.
- the dispensing direction runs starting from this nip in the tangential direction to the tear segment.
- the claimed adjustable means for example in the form of an adjustable flap, it is possible to isolate the transfer point at the web-forming device during Auskmmvorganges substantially against the material flow of the combed material to selectively feed this arranged below the combing cylinder suction.
- the combed components such as. B. short fibers between the clothing tangs of the toothed sets of the combing cylinder. These components are then removed from a arranged below the combing cylinder rotating brush roller and delivered to the suction channel.
- the adjustable flap is used as a guide element, which ensures a defined transfer to the suction channel.
- the first means consists of a rotatably mounted screen drum, within which the second means is also arranged as a rotatably mounted cylinder.
- the second means proposed within the first means is connected to a drive and provided with at least one opening on its circumference, which extends approximately over the width of the withdrawn fiber packet and via which a connection between the air passages of the first means and the vacuum source can be produced ,
- the second means serves as a kind of control element for the connection between the openings of the first means with the vacuum source.
- the drive of the second means are in drive connection with the drive of the extraction device.
- At least one cover element is provided within the first means.
- the speed of the first or second means controllable, or designed adjustable.
- the speed of the first means can influence the soldering (soldering distance).
- Such a covering agent will be z. B. in the area in which the fiber fleece formed on the first means must be removed in order to supply it to a subsequent further processing.
- At least one adjustable element is provided, which is adapted to control at least one opening for an air passage between the sealed space and the ambient air of the shuttering. It can be provided that the adjustable element is combined with the pivotable flap for controlling the flow of material, or is connected to this.
- the element may also consist of a separate, pivotable about a pivot axis flap, which - viewed transversely to the transport direction of the fibrous web - extends substantially over the length of the tear-off roller.
- the pivot axis of the flap is arranged in the region below the tear-off roller and shows the free end of the flap in the direction of the tear-off roller.
- the further hinged flap adjacent to the flap for the control of the material flow.
- the air flow produced by the negative pressure in the suction channel does not adversely affect the soldering process
- at least one opening be provided in the region of the suction channel which connects the suction channel to the ambient air and means are provided for the opening during a combing play open and close.
- the air volume to be supplied which is required by the negative pressure in the suction channel, is drawn in from the ambient air via the additional opening, as a result of which only a very small air flow through the applied negative pressure in the suction channel is present in the delivery region of the fiber packets.
- the means for opening and closing this opening may be a separately controllable means or, as proposed, be connected to the hinged flap.
- Fig.1 shows a nipper unit 1 of a comber, which is provided with a substantially stationary lower nipper plate 2 and with a movably mounted tongs 3.
- the nipper unit is closed, the nipper knife 3 forms with the lower nipper plate 2 a nip KZ for clamping a cotton wool.
- the cotton W can z. B. consist of a wadding, which is unrolled by a wadding not shown in detail. It is also possible that the cotton wool W consists of one or more fiber slivers supplied side by side. If slivers are used, they are supplied from cans, which are stored in the combing machine. The present example shows only one combing head.
- a combing cylinder axis 17 of the combing cylinder 16 is driven via a drive A1 shown schematically, wherein the drive A1 is connected via the line 18 to the control unit ST.
- the combing cylinder 16 has distributed on its circumference in each case a combing segment 19 and a tear-off segment 20. Free spaces F1, F2 are present between these segments 19, 20.
- the combing segment 19 is z. B. from several consecutively arranged Kämmgarnuren. The Kämmgarnuren can be designed differently.
- a fixed comb 8 is mounted, which is mounted movably via a drive 9 shown schematically between the pliers 1 and the tear-off roller 24.
- the drive 9 is connected via a line 23 to the controller ST.
- the pivotally mounted within the forceps 1 guide 10 is provided on its upper side and the side which faces the forceps blade 3, with a guide surface 15 on which the cotton wool W is guided.
- the guide 10 has a deflection point U, at which the cotton wool is deflected in the direction of the clamping point KZ.
- a guide element 14 is mounted in the region of the deflection point U.
- the guide element 14 is firmly connected to the guide 10. The distance between the guide surface 15 and the lower side of the guide element 14 is dimensioned so that the cotton wool W can be passed through the available space.
- a web-forming device 30 is arranged in the area of the enveloping circle HK of the combing cylinder 16 and below the tear-off roller 24, a web-forming device 30 is arranged.
- This device 30 is at least partially sealed off by a casing 31 with respect to the ambient air.
- this casing seals off the delivery area AB for the withdrawing fiber package from the ambient air.
- a sieve drum 33 rotatably mounted within this casing. Coaxial with the screen drum 33 is rotatably mounted within a cylinder 35 which is distributed on its circumference with two openings S1, S2 is provided, via which the air circulation is controlled by the screen drum.
- the interior IR of the screen drum 33, and the cylinder 35 is connected to a vacuum shaft 38, wherein a valve 39 is provided for controlling this connection, which is connected via the line 40 to the controller ST in connection.
- a stationary mounted cover member 42 is disposed in the interior of the cylinder 35, which, in particular in the region of a removal device 44, the inner space of the cylinder 35 under negative pressure seals off from the outside environment. This serves in particular to support the detachment of the fiber fleece V by the removal device from the outer circumference of the screen drum 33.
- the removal device 44 is z. B. from two cooperating rollers W1, W2, which deliver the discharged nonwoven fabric V to a fleece funnel VT, in which a sliver F is formed.
- This sliver F (also called combing machine belt) is z. B. delivered to a table T and transferred with further slivers adjacent combing heads to a subsequent drafting system.
- a flap 46 is pivotally mounted about an axis of rotation 47.
- the axis of rotation 47 is stationary mounted in the machine frame. As described below, the flap 46 has the task of influencing the direction of the fiber material flow.
- a further flap 26 is arranged, which is hinged about the rotation axis 27 pivotally.
- the flaps 46 and 26 are over a Bridge 28 connected.
- the flap 26 is also mitverschwenkt when pivoting the flap 46.
- the flap 26 is moved about the rotation axis 27 via a separate drive independently of the flap 46. In this case, no web 28 would be present between the two flaps.
- an embodiment is possible, which in the partial view of Fig. 5b is shown.
- the flap 26 is also connected via a web 28 with the flap 46, however, has no own pivot axis. Ie. the pivoting of the flap 26 via the flap 46 and the web 28 about the axis of rotation 47th From this Fig. 5b It can also be seen that the flap 46 communicates with another short flap 56 which extends downwardly on the opposite side of the axis of rotation 47. In the position shown, the flap 56 rests on the side wall 53 of the suction channel 52. Ie. There is a closed surface between the side wall 53 and the flap 56, and the flap 46 is present.
- the adjustment of the flap 46 is taken over an acting on the pivot axis 47 actuator 49 before.
- the adjusting element 49 is connected via the line 50 to the controller ST.
- the flap 46 seals off the web forming device 30 from the material flow of the scoured components.
- This material flow (indicated by an arrow), which can be located on the one hand between the clothing teeth of the combing segment 19 and also outside the enveloping circle HK, is fed downwards to a suction channel 52.
- the length of the flap 46 is designed such that its free end by a dimension a on the tangent C in this outer pivot position protrudes.
- the tangent C extends starting from the nip KA of the tear-off roller 24 in the direction of the screen drum 33.
- the supernatant with the measure a ensures that the material (with the tear-off roller removed) combed out by the combing material is reliably deflected in the direction of the suction channel 52 ,
- the suction channel 52 is in communication with a vacuum source, not shown.
- a cleaning brush 36 um a rotation axis 34 rotatably mounted, which is responsible for the cleaning of the combing segment 19 of the combing cylinder 16.
- the bristles 37 of the cleaning brush engage in the combing segment 19 of the combing cylinder.
- the deposited components (such as short fibers, nits, shell parts, dust, etc.) are fed to a central disposal facility via conveyors (not shown).
- the tuft emerges from the combing segment 19 and enters the free space F 2 between combing segment 19 and tear-off segment 20.
- the forceps 1 is opened by lifting off the tong-type knife 3.
- the guide 10 is pivoted about the pivot axis 12 upwards and moves away with its deflection point U of the lower tong plate 2.
- the guide member 14 is mitverschwenkt. Parallel to this, the tear-off roller 24 moves in the direction of the enveloping circle HK of the combing cylinder 16.
- the tear-off segment 20 is already in the area of the tear-off roller 24 and forms with this a nip KA for the end of the cotton wool W.
- the guide 10 is now in its uppermost position. In this position, the clamping point KA superior end of the tuft FB on the length Lx, which is necessary to carry out the tearing off.
- the rip-off roller 24 offset from the driven tear-off segment 20 in rotation.
- FIG. 2 can be seen by the pivoting of the guide 10 and the projecting into the forceps 1 end of the tuft FB raised. By the lifting described the tuft FB is transferred into the sphere of action of the combing hammer 8a of the fixed comb 8.
- the feed cylinder 5 is set in rotary motion via a device, which is no longer shown, in order to feed in a new piece of cotton wool from the forceps 1.
- the feeding process is supported by the removal process.
- the fix comb 8 is moved over the drive 9 in the direction of the tear-off roller 24 until it reaches the in Fig. 3 has reached the position shown, wherein it is in the immediate vicinity of the circumference of the tear-off roller 24 itself.
- This displacement of the Fixkammes corresponds approximately to the dining, the fed through the feed whale 5 after cotton. This will prevent material buckling in the area behind the top comb.
- the flap 46 passes through intermediate positions, such as. B. in the Fig. 5a will be shown. It can be seen that there is still an opening 58 between the short flap part 56 and the side wall 53 of the suction channel 52. Through this opening 58 prevents the air flow generated by the applied negative pressure in the suction channel 52 generates a disturbing for the soldering air flow in the discharge area AB. D. h., The required by the negative pressure in the suction air volume is sucked in large part via the opening 58 from the ambient air. A minimum part (as indicated by a dashed arrow) is also sucked out of the delivery area AB.
- the formed web V is transferred by the rotational movement of the screen drum 33 in the region of a removal device 44 and removed there via the roller pairs W1, W2.
- 35 small openings K are provided distributed on the circumference of the cylinder (see Fig.1 ), which communicate with the negative pressure interior IR.
- a slight negative pressure is permanently generated between the outer jacket of the cylinder 35 and the screen drum. This ensures that the fleece adheres to the outer surface of the sieve drum.
- the removed nonwoven fabric is fed to a nonwoven strainer VT, in which the nonwoven fabric is combined to form a sliver F. This is then, as already described, added on a guide table T with further slivers a subsequent drafting for further processing.
- the guide 10 After completion of the tear-off and soldering operation, the guide 10 via the actuating means 11 under the action of the control ST back into the in FIG. 1 shown lower position pivoted. Before the start of this pivoting process, however, the tear-off roller 24 must be lifted from the enveloping circle HK of the combing cylinder 16. The flap 46 is already in the in FIG. 4 drawn position, which is necessary for the subsequent combing process.
- the pliers is closed and the fixed comb in the in FIG. 1 shown moved back position.
- the guide path for the cotton W within the pliers 1 is shortened again, whereby the length of the tuft FB protruding from the tongs increases. This is for the subsequent combing again a tuft FB with a length L before, as in FIG. 1 will be shown.
- the combing work of the fixed comb also comes into full effect. That allows also working with high Kammspielbread, which were not possible with the original Heilmann execution.
- the pivotable flap ensures that the material flow during combing and tearing can be selectively performed, with change, or deflection of the withdrawal direction of the fiber during tearing is necessary to pass the peeled fiber pack a subsequent web-forming device. This also allows working with high Kammspielbread.
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- Textile Engineering (AREA)
- Preliminary Treatment Of Fibers (AREA)
Abstract
Description
Die Erfindung bezieht sich auf eine Kämmmaschine mit einem Zangenaggregat nach dem Oberbegriff des Hauptanspruches 1.The invention relates to a combing machine with a nipper unit according to the preamble of the main claim. 1
Eine Kämmmaschine, wobei für den Abreissvorgang eine Abreisswalze mit einem Abreisssegment einer Kämmwalze zusammenwirkt ist bereits 1845 von Heilmann entwickelt worden. Wie aus dem
Des weiteren muss bei diesen Ausführungen das vordere Ende des abgezogenen Faserpaketes für die Übergabe an das jeweils nachfolgende Walzenpaar umgelenkt werden. D.h. die Abzugsrichtung des Faserpaketes und die Förderrichtung zu der Klemmlinie des nachfolgenden Walzenpaares sind nicht gleichgerichtet und schneiden sich unter einem Winkel. Diese Änderung der Förderichtung stellt ebenfalls ein beschränkendes Element der Höhe der möglichen Kammspielzahl dar.A combing machine, whereby a tear-off roller cooperates with a tear-off segment of a combing roller for the tear-off process, has already been developed by Heilmann in 1845. Like from the
Furthermore, in these embodiments, the front end of the withdrawn fiber packet must be deflected for the transfer to the respective subsequent pair of rollers. That is, the withdrawal direction of the fiber bundle and the conveying direction to the nip of the subsequent pair of rollers are not rectified and intersect at an angle. This change in the direction of conveyance also represents a limiting element of the amount of possible Kammspielzahl.
Es stellt sich somit die Aufgabe der Erfindung, der nach dem "Heilmann-Prinzip" mit einem Abreiss-Segment des Kämmzylinders zusammenwirkenden Abreisswalze eine entsprechend ausgebildete Vorrichtung zur Bildung eines Faservlieses vorzusehen, welche die zuvor genannten Nachteile beseitigt und eine Erhöhung der Kammspielzahlen ermöglicht. Ausserdem soll mit der erfindungsgemässen Vorrichtung sichergestellt werden, dass die Vliesbildung nicht durch die Abführung der ausgekämmten Bestandteile beeinträchtigt wird.It thus raises the object of the invention to provide the according to the "Heilmann principle" cooperating with a tear-off segment of the combing cylinder Abreisswalze a trained device for forming a nonwoven fabric, which eliminates the aforementioned disadvantages and allows an increase in Kammspielzahlen. In addition, to be ensured with the inventive device that the web formation is not affected by the discharge of the combed components.
Diese Aufgabe wird dadurch gelöst, indem vorgeschlagen wird, dass -in Materialflussrichtung gesehen - im Anschluss an die Abreisswalze wenigstens ein verstellbar gelagertes Mittel zur Steuerung der Übergabe der abgerissenen Faserpakete an die Vliesbildende Vorrichtung und zur Steuerung der Abgabe der ausgekämmten Bestandteile an den Absaugkanal vorgesehen ist.
Dabei können die Begriffe "Übergabe", bzw. "Abgabe" des jeweiligen Materialstromes auch mit dem Begriff " Überführung" bezeichnet werden.This object is achieved by proposing that, viewed in the material flow direction, at least one adjustably mounted means for controlling the transfer of the torn-off fiber packets to the web-forming device and for controlling the delivery of the combed-out components to the suction channel is provided following the tear-off roller ,
The terms "transfer", or "delivery" of the respective material flow can also be referred to by the term "transfer".
Das Mittel kann vorzugsweise aus einer schwenkbar angeordneten Klappe bestehen, welche mit einer Stellvorrichtung verbunden ist.The means may preferably consist of a pivotally arranged flap, which is connected to an adjusting device.
Damit die vom Kämmsegment ausgekämmten Bestandteile sicher in Richtung des Absaugkanals abgelenkt werden, wird vorgeschlagen, dass die Länge des freien Endes der Klappe derart bemessen ist, so dass die Klappe in dieser Arbeitsstellung ein Überstandsmass a aufweist. Das heisst, das freie Ende der Klappe erstreckt sich um das Mass a über den Schnittpunkt der Klappe mit einer Tangenten, welche sich durch die Klemmstelle der Abreisswalze mit dem Abreiss-Segment des Kämmzylinders erstreckt. Dadurch wird gewährleistet, dass das ausgekämmte Gut nicht in den Aufnahmebereich der vliesbildenden Vorrichtung gelangen kann.In order for the components combed out from the combing segment to be deflected reliably in the direction of the suction channel, it is proposed that the length of the free end of the flap be dimensioned such that the flap has a protrusion dimension a in this working position. That is, the free end of the flap extends to the dimension a over the intersection of the flap with a tangent, which through the Clamping point of the tear-off roller extends with the tear-off segment of the combing cylinder. This ensures that the combed product can not get into the receiving area of the web-forming device.
Um die Verstellung der Klappe über die Stellvorrichtung mit dem Kämmzyklus zu synchronisieren, wird vorgeschlagen, die Stellvorrichtung mit einer Steuereinheit zu verbinden.
Zur kontinuierlichen Bildung eines Faservlieses ohne Pilgerschrittbewegung wird vorgeschlagen, dass die Vorrichtung zur Bildung eines Faservlieses ein drehbar gelagertes umlaufendes Mittel aufweist, das auf seiner Peripherie über seinen Umfang mit Öffnungen für einen Luftdurchlass versehen ist und wenigstens ein Teilbereich des Innenraumes des Mittels mit einer Unterdruckquelle verbunden ist und eine Verschalung vorgesehen ist, welche im Abgabebereich des abgezogenen Faserpaketes einen gegen die Umgebung abgeschotteten Raum zwischen der Abreisswalze, dem Hüllkreis des Kämmzylinders und der Peripherie des umlaufenden Mittels bildet, wobei ein Teilbereich des abgeschotteten Raumes durch die Peripherie des Mittels, durch einen Umfangsbereich der Abreisswalze, einen Teilbereich des Hüllkreises des Kämmzylinders und durch die schwenkbare Klappe gebildet wird.
Mit dieser Vorrichtung ist es möglich bei der Abgabe der Faserpakete an die Vliesbildende Vorrichtung die Materialflussrichtung des abgezogenen Faserpaketes im wesentlichen beizubehalten. Das umlaufende Mittel kann dabei in geringem Abstand zum Hüllkreis des Kämmzylinders angeordnet sein, ohne dass es zu Beeinträchtigungen in der Vliesbildung durch die abzuführender ausgekämmter Bestandteile (Kurzfasern, Schalenteile, sonstige Verschmutzungen usw.) kommt. Dies wird durch die entsprechende Einstellung des erfindungsgemäss vorgesehenen verstellbaren Mittels gewährleistet.
Die Übergabestelle des abgezogenen Faserpaketes an die Vliesbildende Vorrichtung befindet sich hierbei unterhalb der Abreisswalze und in Materialflussrichtung, welche durch die Abgaberichtung des Faserpaketes von der Klemmstelle zwischen dem Abreiss-Segment und der Abreisswalze bestimmt wird. D.h. die Abgaberichtung verläuft ausgehend von dieser Klemmstelle in tangentialer Richtung zum Abreiss-Segment. Durch das beanspruchte verstellbare Mittel, z.B. in Form einer verstellbaren Klappe ist es möglich die Übergabestelle an der Vliesbildenden Vorrichtung während des Auskämmvorganges im wesentlichen gegenüber dem Materialstrom des ausgekämmten Materials abzuschotten um dieses gezielt einem unterhalb des Kämmzylinders angeordneten Absaugkanal zuzuführen. Dabei befinden sich ein Grossteil der ausgekämmten Bestandteile, wie z. B. Kurzfasern zwischen den Garniturzähnen der Zahngarnituren des Kämmzylinders. Diese Bestandteile werden dann von einer unterhalb des Kämmzylinders angeordneten rotierenden Bürstenwalze entfernt und an den Absaugkanal abgegeben. Ein Teil des ausgekämmten Materials wird auch durch Fliehkraft aus dem Bereich der Kämmgarnituren austreten und im Bereich ausserhalb des Hüllkreises des Kämmsegmentes unter Einwirkung eines über den Saugkanal erzeugten Saugluftstrom nach unten befördert. Damit insbesondere diese Bestandteile nicht in den Bereich der Vliesbildenden Vorrichtung gelangen, wird die verstellbare Klappe als Führungselement eingesetzt, welches eine definierte Überführung zum Absaugkanal gewährleistet.In order to synchronize the adjustment of the flap on the adjusting device with the combing cycle, it is proposed to connect the adjusting device with a control unit.
For the continuous formation of a nonwoven fabric without pilgrim movement, it is proposed that the apparatus for forming a nonwoven fabric comprises a rotatably mounted circulating means provided on its periphery with openings for air passage over its periphery and at least a portion of the interior of the means connected to a vacuum source and a casing is provided, which forms in the discharge region of the withdrawn fiber packet an environmentally sealed space between the tear roller, the enveloping circle of the combing cylinder and the periphery of the rotating means, wherein a portion of the sealed space through the periphery of the means, by a peripheral region the tear-off, a portion of the enveloping circle of the combing cylinder and is formed by the pivotable flap.
With this device, it is possible to substantially maintain the direction of material flow of the withdrawn fiber packet when the fiber packets are delivered to the web-forming device. The circulating means can be arranged at a small distance from the enveloping circle of the combing cylinder, without causing any impairment in the formation of nonwoven fabric by the combed components to be removed (short fibers, shell parts, other contaminants, etc.). This is ensured by the corresponding adjustment of the adjustable means provided according to the invention.
The transfer point of the withdrawn fiber packet to the web-forming device is in this case below the tear-off roller and in the direction of material flow, which is determined by the dispensing direction of the fiber packet from the nip between the tear-off segment and the tear-off. That is, the dispensing direction runs starting from this nip in the tangential direction to the tear segment. By the claimed adjustable means, for example in the form of an adjustable flap, it is possible to isolate the transfer point at the web-forming device during Auskämmvorganges substantially against the material flow of the combed material to selectively feed this arranged below the combing cylinder suction. Here are a large part of the combed components, such as. B. short fibers between the clothing tangs of the toothed sets of the combing cylinder. These components are then removed from a arranged below the combing cylinder rotating brush roller and delivered to the suction channel. Part of the combed material will also escape from the area of the Kämmgarnituren by centrifugal force and transported in the area outside the enveloping circle of Kämmsegmentes under the action of a suction air flow generated via the suction channel down. So that these components in particular do not reach the area of the web-forming device, the adjustable flap is used as a guide element, which ensures a defined transfer to the suction channel.
Des Weiteren wird vorgeschlagen, innerhalb des umlaufenden Mittels wenigstens ein zweites Mittel vorzusehen, über welches in Zeitintervallen in Synchronisation mit der Abgabe der Faserpakete der freie Luftdurchlass, zumindest über einen Teilbereich der Öffnungen zwischen der Umgebung des ersten Mittels und der Unterdruckquelle steuerbar ist.
Vorzugsweise besteht das erste Mittel aus einer drehbar gelagerten Siebtrommel, innerhalb welcher das zweite Mittel ebenfalls als drehbar gelagerter Zylinder angeordnet ist.
Durch den gezielt im richtigen Zeitpunkt an der Peripherie des ersten Mittels angelegten Unterdruck über die Unterdruckquelle kann das abgegebene Faserpaket entsprechend gehalten und anschliessend mit einer gewünschten Überdeckung und Ausrichtung der verbliebenen Häkchen auf das Ende des Faservlieses aufgelegt werden.Furthermore, it is proposed to provide within the revolving means at least a second means, by means of which at intervals over time in synchronization with the delivery of the fiber packets, the free air passage, at least over a portion of the openings between the environment of the first means and the vacuum source is controllable.
Preferably, the first means consists of a rotatably mounted screen drum, within which the second means is also arranged as a rotatably mounted cylinder.
By means of the negative pressure applied via the negative pressure source to the periphery of the first means at the right time, the delivered fiber packet can be held accordingly and then placed on the end of the fiber fleece with a desired coverage and alignment of the remaining hooks.
Vorzugsweise ist das innerhalb des ersten Mittels vorgeschlagene zweite Mittel mit einem Antrieb verbunden und mit wenigstens einer Öffnung auf seinem Umfang versehen, welche sich etwa über die Breite des abgezogenen Faserpaketes erstreckt und über welche eine Verbindung zwischen den Luftdurchlässen des ersten Mittels und der Unterdruckquelle herstellbar ist. Das zweite Mittel dient dabei als eine Art Steuerungselement für die Verbindung zwischen den Öffnungen des ersten Mittels mit der Unterdruckquelle. Zur Gewährleistung der beschriebenen Synchronisation stehen der Antrieb des zweiten Mittels mit dem Antrieb der Abzugsvorrichtung in Antriebsverbindung.Preferably, the second means proposed within the first means is connected to a drive and provided with at least one opening on its circumference, which extends approximately over the width of the withdrawn fiber packet and via which a connection between the air passages of the first means and the vacuum source can be produced , The second means serves as a kind of control element for the connection between the openings of the first means with the vacuum source. To ensure the synchronization described, the drive of the second means are in drive connection with the drive of the extraction device.
Um entsprechende Bereiche sicher gegen die Unterdruckquelle abzuschotten ist es vorteilhaft, wenn innerhalb des ersten Mittels wenigstens ein Abdeckelement vorgesehen ist.In order to reliably seal off corresponding areas against the negative pressure source, it is advantageous if at least one cover element is provided within the first means.
Dabei kann vorgesehen sein, dass man je nach Anwendung die Drehzahl des ersten oder zweiten Mittels steuerbar, bzw. einstellbar gestaltet. Insbesondere mit der Variation der Drehzahl des ersten Mittels kann man die Lötung (Lötabstand) beeinflussen.It can be provided that depending on the application, the speed of the first or second means controllable, or designed adjustable. In particular, with the variation of the speed of the first means can influence the soldering (soldering distance).
Des weiteren wäre es auch denkbar, die Drehrichtung des ersten oder zweiten Mittels zu ändern. Dabei können die Drehrichtungen beider Mittel auch gegenläufig sein.Furthermore, it would also be conceivable to change the direction of rotation of the first or second means. The directions of rotation of both means can also be in opposite directions.
Es wird weiter vorgeschlagen, die oder das Abdeckelement innerhalb des zweiten Mittels anzubringen. Ein derartiges Abdeckmittel wird man z. B. in dem Bereich vorsehen, in welchem das auf dem ersten Mittel gebildete Faservlies abgezogen werden muss, um es einer nachfolgenden Weiterverarbeitung zuzuführen.It is further proposed to install the or the cover within the second means. Such a covering agent will be z. B. in the area in which the fiber fleece formed on the first means must be removed in order to supply it to a subsequent further processing.
Um das Anhaften des bereits gebildeten Faservlieses auf dem Umfang der Siebtrommel während des Abtransportes zu gewährleisten, wird vorgeschlagen, dass verteilt auf dem Umfang des zweiten Mittel weitere kleinere Öffnungen vorgesehen sind, welche sich nur über einen Teilbereich in Bezug auf die Breite des abgezogenen Faserpaketes erstrecken. Dadurch entsteht fortwährend ein kleiner Unterdruck auf der Peripherie der Siebtrommel, welcher sich im Spalt zwischen der Siebtrommel und des Zylinders aufbaut, da der Spalt fortwährend mit der Unterdruckquelle in Verbindung steht. Die Wirkung dieses geringen Unterdruckes hat jedoch keinen Einfluss auf die Übergabe des Faserpaketes von der Abreisvorrichtung auf die Siebtrommel und dient lediglich zum bereits beschriebenen Halten des Faservlieses auf der Siebtrommel.In order to ensure adherence of the already formed nonwoven fabric on the circumference of the screen drum during removal, it is proposed that further smaller openings are provided distributed on the circumference of the second means, which extend only over a partial area with respect to the width of the withdrawn fiber packet , This constantly creates a small negative pressure on the periphery of the screen drum, which builds up in the gap between the screen drum and the cylinder, since the gap is constantly connected to the vacuum source in combination. However, the effect of this low negative pressure has no effect on the transfer of the fiber package from the discharge device to the screen drum and serves only to hold already described the fiber web on the screen drum.
Zur aktiven und gezielten Beeinflussung der Luftströmungen innerhalb des abgeschotteten Raumes wird vorgeschlagen, dass im Bereich der Verschalung wenigstens ein verstellbares Element vorgesehen ist, welches geeignet ist, wenigstens eine Öffnung für einen Luftdurchlass zwischen dem abgeschotteten Raum und der Umgebungsluft der Verschalung zu steuern. Dabei kann vorgesehen sein, dass das verstellbare Element mit der verschwenkbaren Klappe zur Steuerung des Materialstromes kombiniert, bzw. mit dieser verbunden ist.For active and targeted influencing of the air flows within the enclosed space, it is proposed that in the area of the casing at least one adjustable element is provided, which is adapted to control at least one opening for an air passage between the sealed space and the ambient air of the shuttering. It can be provided that the adjustable element is combined with the pivotable flap for controlling the flow of material, or is connected to this.
Das Element kann auch aus einer separaten, um eine Schwenkachse schwenkbaren Klappe bestehen, welche sich - quer zur Transportrichtung des Faservlieses gesehen - im wesentlichen über die Länge der Abreisswalze erstreckt.
Vorteilhafterweise wird dabei vorgeschlagen, dass die Schwenkachse der Klappe im Bereich unterhalb der Abreisswalze angeordnet ist und das freie Ende der Klappe in Richtung der Abreisswalze zeigt.The element may also consist of a separate, pivotable about a pivot axis flap, which - viewed transversely to the transport direction of the fibrous web - extends substantially over the length of the tear-off roller.
Advantageously, it is proposed that the pivot axis of the flap is arranged in the region below the tear-off roller and shows the free end of the flap in the direction of the tear-off roller.
Um eine sichere Ablage des Faserpaketes auf der Siebtrommel zur gewährleisten, wird vorgeschlagen, die Klappe derart anzubringen, sodass das freie Ende der Klappe in geöffneter Stellung mit dem ersten Mittel eine Klemmstelle bildet.In order to ensure a safe storage of the fiber package on the screen drum, it is proposed to attach the flap so that the free end of the flap in the open position with the first means forms a nip.
Vorzugsweise verläuft die weitere schwenkbare Klappe benachbart zur Klappe für die Steuerung des Materialflusses.Preferably, the further hinged flap adjacent to the flap for the control of the material flow.
Damit die durch den Unterdruck im Absaugkanal entstehende Luftströmung sich nicht negativ auf den Lötvorgang auswirkt, wird vorgeschlagen, dass wenigstens eine Öffnung im Bereich des Absaugkanals vorgesehen ist, welche den Absaugkanal mit der Umgebungsluft verbindet und Mittel vorgesehen sind, um die Öffnung während eines Kämmspieles zu öffnen und zu schliessen. Dadurch wird das durch den Unterdruck im Absaugkanal benötigte nachzuführende Luftvolumen über die zusätzliche Öffnung aus der Umgebungsluft angesaugt, wodurch nur noch eine sehr geringe Luftströmung durch den angelegten Unterdruck im Absaugkanal im Abgabebereich der Faserpakete vorhanden ist. D. h. der Lötvorgang wird nicht durch den angelegten Unterdruck im Absaugkanal negativ beeinflusst.
Das Mittel zum Öffnen und Schliessen dieser Öffnung kann ein separat steuerbares Mittel sein oder wie vorgeschlagen, mit der schwenkbaren Klappe verbunden sein. Weitere Vorteile der Erfindung werden anhand nachfolgender Ausführungsbeispiele näher aufgezeigt und beschrieben.So that the air flow produced by the negative pressure in the suction channel does not adversely affect the soldering process, it is proposed that at least one opening be provided in the region of the suction channel which connects the suction channel to the ambient air and means are provided for the opening during a combing play open and close. As a result, the air volume to be supplied, which is required by the negative pressure in the suction channel, is drawn in from the ambient air via the additional opening, as a result of which only a very small air flow through the applied negative pressure in the suction channel is present in the delivery region of the fiber packets. Ie. the soldering process is not adversely affected by the applied negative pressure in the suction channel.
The means for opening and closing this opening may be a separately controllable means or, as proposed, be connected to the hinged flap. Further advantages of the invention will be shown and described in more detail with reference to subsequent embodiments.
Es zeigen:
- Fig. 1
- eine schematische Seitenansicht eines Kämmkopfes einer Kämmmaschine in einer Kämmstellung
- Fig. 2
- eine schematische Seitenansicht nach Anspruch 1 in einer Abreissstellung
- Fig. 3
- eine schematische Seitenansicht nach
Fig.2 in einer Abgabestellung eines abgezogenen Faserpaketes an eine - Fig. 4
- eine schematische vergrösserte Ansicht der Vliesbildenden Vorrichtung nach
Fig.3 - Fig. 5a
- eine schematische Teilansicht nach
Fig. 1 mit schwenkbarer Klappe in einer Zwischenstellung - Fig. 5b
- eine schematische Ansicht nach
Fig. 5a mit schwenkbarer Klappe in der äus- sersten Schwenkstellung
- Fig. 1
- a schematic side view of a combing head of a combing machine in a combing position
- Fig. 2
- a schematic side view according to claim 1 in a tear-off position
- Fig. 3
- a schematic side view after
Fig.2 in a delivery position of a withdrawn fiber packet to a - Fig. 4
- a schematic enlarged view of the web-forming apparatus according to
Figure 3 - Fig. 5a
- a schematic partial view after
Fig. 1 with swiveling flap in an intermediate position - Fig. 5b
- a schematic view after
Fig. 5a with swiveling flap in the outermost pivot position
Das Abreisssegment 20, welches sich über einen bestimmten Umfangswinkel auf dem Kämmzylinder 16 erstreckt, ist mit einer Aussenfläche 21 versehen, welche für den Abreissvorgang (
Die innerhalb der Zange 1 schwenkbar angebrachte Führung 10 ist auf ihrer Oberseite und der Seite, welche dem Zangenmesser 3 zugekehrt ist, mit einer Führungsfläche 15 versehen, auf welcher die Watte W geführt wird. Im Bereich des Zangenmessers 3 weist die Führung 10 eine Umlenkstelle U auf, an welcher die Watte in Richtung der Klemmstelle KZ umgelenkt wird. In einem Abstand zu dieser Führungsfläche 15 ist im Bereich der Umlenkstelle U ein Führungselement 14 abgebracht. Das Führungselement 14 ist fest mit der Führung 10 verbunden. Der Abstand zwischen der Führungsfläche 15 und der unteren Seite des Führungselementes 14 ist dabei so bemessen, sodass durch den dabei vorhandenen Freiraum die Watte W hindurchgeführt werden kann.
Im Bereich des Hüllkreises HK des Kämmzylinders 16 und unterhalb der Abreisswalze 24 ist eine Vliesbildende Vorrichtung 30 angeordnet. Diese Vorrichtung 30 ist zumindest teilweise durch eine Verschalung 31 gegenüber der Umgebungsluft abgeschottet. Diese Verschalung schottet insbesondere den Abgabebereich AB für das abziehende Faserpaket gegen die Umgebungsluft. Innerhalb dieser Verschalung ist eine Siebtrommel 33 drehbar gelagert. Koaxial zur Siebtrommel 33 ist innerhalb ein Zylinder 35 drehbar gelagert, welcher auf seinem Umfang verteilt mit zwei Öffnungen S1, S2 versehen ist, über welche die Luftzirkulation durch die Siebtrommel gesteuert wird. Dabei ist der Innenraum IR der Siebtrommel 33, bzw. des Zylinders 35 mit einer Unterdruckwelle 38 verbunden, wobei zur Steuerung dieser Verbindung ein Ventil 39 vorgesehen ist, welches über die Leitung 40 mit der Steuerung ST in Verbindung steht. Zusätzlich ist im Innenraum des Zylinders 35 ein stationär angebrachtes Abdeckelement 42 angeordnet, welches insbesondere im Bereich einer Abnahmevorrichtung 44 den unter Unterdruck stehenden Innenraum des Zylinders 35 gegenüber der Aussenumgebung abschottet. Dies dient insbesondere zur Unterstützung der Ablösung des Faservlieses V durch die Abnahmevorrichtung vom Aussenumfang der Siebtrommel 33. Die Abnahmevorrichtung 44 besteht z. B. aus zwei zusammenwirkenden Walzen W1, W2, welche das abgegebene Faservlies V an einen Vliestrichter VT abgeben, in welchen ein Faserband F gebildet wird. Dieses Faserband F (auch Kämmmaschinenband genannt) wird z. B. auf einen Tisch T abgegeben und mit weiteren Faserbändern benachbarter Kämmköpfe zu einem nachfolgenden Streckwerk überführt.The pivotally mounted within the forceps 1
In the area of the enveloping circle HK of the combing
Zwischen dem Hüllkreis HK des Kämmzylinders 16 und der Vorrichtung 30 ist eine Klappe 46 schwenkbar um eine Drehachse 47 angebracht. Die Drehachse 47 ist dabei stationär im Maschinengestell gelagert. Wie nachfolgend noch beschrieben, hat die Klappe 46 die Aufgabe, die Richtung des Fasermaterialstromes zu beeinflussen.Between the enveloping circle HK of the combing
In der in
Die Klappe 46 befindet sich während der in
Aus dieser
The
From this
Wie schematisch angedeutet, wird die Verstellung der Klappe 46 über ein an der Schwenkachse 47 angreifendes Stellelement 49 vor genommen. Dabei ist das Stellelement 49 über die Leitung 50 mit der Steuerung ST verbunden. In dieser Stellung schottet die Klappe 46 die Vliesbildende Vorrichtung 30 gegenüber dem Materialstrom der ausgekämmten Bestandteile ab. Dieser Materialstrom (gekennzeichnet durch einen Pfeil), welcher sich einerseits zwischen den Garniturzähnen des Kämmsegments 19 und auch ausserhalb des Hüllkreises HK befinden kann, wird nach unten einem Absaugkanal 52 zugeführt.
Wie ebenfalls aus
Die abgeschiedenen Bestandteile (wie z. B. Kurzfasern, Nissen, Schalenteile, Staub, etc.) werden über nicht gezeigte Fördereinrichtungen einer zentralen Entsorgungseinrichtung zugeführt.
Im Anschluss an den Kämmvorgang tritt der Faserbart aus dem Kämmsegment 19 aus und gelangt in den freien Zwischenraum F2 zwischen Kämmsegment 19 und Abreisssegment 20. Beim Erreichen dieser Stellung wird die Zange 1 durch Abheben des Zangenmessers 3 geöffnet. Gleichzeitig wird die Führung 10 um die Schwenkachse 12 nach oben geschwenkt und entfernt sich mit ihrer Umlenkstelle U von der unteren Zangenplatte 2. Dabei wird auch das Führungselement 14 mitverschwenkt. Parallel dazu bewegt sich die Abreisswalze 24 in Richtung des Hüllkreises HK des Kämmzylinders 16. Durch das Anheben der Führung 10 innerhalb der Zange 1 verlängert sich die Strecke zwischen dem Speisezylinder 5 und der Klemmstelle KZ, auf welcher die Watte W innerhalb der Zange geführt wird. Da in diesem Zeitabschnitt eines Kammspieles die Speisewalze 5 stillsteht, verkürzt sich der aus der Zange herausragende Faserbart FB auf die Länge L1. D. h. die ursprüngliche Länge L des Faserbartes FB verkürzt sich um den Betrag, um welchen sich der Führungsweg innerhalb der Zange 1 verlängert. Sobald das Kämmsegment 19 die Klappe 46 passiert hat, wird diese in Richtung des Hüllkreises HK des Kämmzylinders 16 verschwenkt und nimmt dann eine Endstellung während eines Abreissvorganges ein, welche z. B. in
In der in
Like also out
The deposited components (such as short fibers, nits, shell parts, dust, etc.) are fed to a central disposal facility via conveyors (not shown).
Subsequent to the combing process, the tuft emerges from the combing
In the in
Über die zwischen der Klemmstelle KA befindliche ausgekämmte Watte wird über Friktion die Abreisswalze 24 vom angetriebenen Abreisssegment 20 in Drehbewegung versetzt. Es wäre jedoch auch denkbar einen zusätzlichen separaten Antrieb für die Abreisswalze 24 vorzusehen.About the located between the nip KA combed cotton is the rip-off
Wie aus
Ausgehend von dieser Stellung beginnt nun der Abreissvorgang der von der Klemmstelle KA erfassten Fasern. Gleichzeitig wird über eine nicht mehr gezeigte Einrichtung der Speisezylinder 5 in Drehbewegung versetzt, um ein neues Wattenstück der Zange 1 zuzuspeisen. Der Speisevorgang wird dabei durch den Abziehvorgang unterstützt. Gleichzeitig und während dem Speisevorgang wird der Fixkamm 8 über den Antrieb 9 in Richtung der Abreisswalze 24 verschoben, bis er die in
Sobald das andere Ende E des Faserpaketes FP von der Klemmstelle KA freigegeben wird (
Um vor der Bildung dieser Lötstelle das Ende FE des Faserpaketes FP bei weiterer Drehung der Öffnung S2 sicher auf dem Aussenmantel 33a der Siebtrommel 33 zu halten, wird die Klappe 46 und somit auch die Klappe 26 über das in
Bevor jedoch die in
Das gebildete Vlies V wird durch die Drehbewegung der Siebtrommel 33 in den Bereich einer Abnahmevorrichtung 44 überführt und dort über die Walzenpaare W1, W2 abgenommen. Um das gebildete Vlies auf seinem Weg zu der Abnahmevorrichtung sicher auf der Siebtrommel 33 zu halten, sind verteilt auf dem Umfang des Zylinders 35 kleine Öffnungen K vorgesehen (siehe
Das abgenommene Vlies wird einem Vliestrichter VT zugeführt, bei welchem das Vlies zu einem Faserband F zusammengefasst wird. Dieses wird dann, wie bereits beschrieben, auf einem Führungstisch T mit weiteren Faserbändern einem nachfolgenden Streckwerk zur Weiterverarbeitung hinzugeführt.The formed web V is transferred by the rotational movement of the
The removed nonwoven fabric is fed to a nonwoven strainer VT, in which the nonwoven fabric is combined to form a sliver F. This is then, as already described, added on a guide table T with further slivers a subsequent drafting for further processing.
Nach Abschluss des Abreiss- und Lötvorganges wird die Führung 10 über das Stellmittel 11 unter Einwirkung der Steuerung ST wieder in die in
Mit der gezeigten und beschriebenen Ausführung werden bei einer stationären Zange optimale geometrische Verhältnisse für den Abreiss- und Kämmvorgang geschaffen, wobei die Kämmarbeit des Fixkammes ebenfalls voll zur Wirkung kommt. Das erlaubt auch das Arbeiten mit hohen Kammspielzahlen, welche mit der ursprünglichen Heilmann-Ausführung nicht möglich waren. Ausserdem gewährleistet die schwenkbare Klappe, dass der Materialstrom beim Kämmvorgang und beim Abreissvorgang gezielt geführt werden kann, wobei Änderung, bzw. Umlenkung der Abzugsrichtung des Fasergutes beim Abreissvorgang notwendig ist, um das abgezogene Faserpaket einer nachfolgenden Vliesbildenden Vorrichtung zu übergeben. Das ermöglicht ebenfalls das Arbeiten mit hohen Kammspielzahlen.With the embodiment shown and described optimal geometrical conditions for the tearing and combing process are created in a stationary pliers, the combing work of the fixed comb also comes into full effect. That allows also working with high Kammspielzahlen, which were not possible with the original Heilmann execution. In addition, the pivotable flap ensures that the material flow during combing and tearing can be selectively performed, with change, or deflection of the withdrawal direction of the fiber during tearing is necessary to pass the peeled fiber pack a subsequent web-forming device. This also allows working with high Kammspielzahlen.
Es ist auch denkbar, andere Vliesbildende Vorrichtungen, wie die gezeigte, in Verbindung mit dem erfindungsgemäss gezeigten Führungsmittel anzuwenden.It is also conceivable to use other web-forming devices, such as those shown, in conjunction with the guide means shown according to the invention.
Claims (15)
- A combing machine with a nipper aggregate (1) having a lower nipper plate (2) which, for forming a nip point (KZ), interacts with an upper nipper knife (3) which is arranged to be movable relative to said nipper plate, and with a feeding means (5) for intermittently feeding a fiber mass (W) to the nip point (KZ) of the nipper aggregate (1), as well as a combing cylinder (16) which is rotatably mounted below the nipper plate and, on his circumference, has a combing segment (19) and a detaching segment (20), and with a suction channel (52) associated to the combing cylinder, as well as a rotatably mounted detaching roller (24) which, for the detaching process, is feedable towards the detaching segment (24) for forming a nip point (KA) so as to detach a fiber bundle (FP) from the end (FB) of the fiber mass (W) provided by the nipper aggregate (1), wherein said fiber bundle is delivered to a device (30) for forming a fiber fleece (V) which device is arranged downstream of the detaching roller (24), and with a top comb (8) arranged between the nipper aggregate (1) and the detaching roller (24), characterized in that - viewed in the direction (R) of the material flow - downstream of the detaching roller (24) at least one adjustably mounted means (46) is provided for controlling the transfer of the detached fiber bundle (FP) to the device (30) forming the fiber fleece and for controlling the delivery of the combed out components to the suction channel (52).
- The combing machine according to claim 1, characterized in that the means consists of a pivotably arranged flap (46) which is connected to an adjusting device (49).
- The combing machine according to claim 2, characterized in that the adjusting device (49) is connected to a control (ST).
- The combing machine according to any one of the claims 2 to 3, characterized in that the device (30) for forming a fiber fleece (V) has a rotatably mounted, circulating first means (33) which is provided on its periphery and over its circumference with openings (O) for an air passage, and at least one subregion of the interior (IR) is connected to a vacuum source (38), and a casing (31) is provided which, in the delivery region (AB) of the detached fiber bundle (FP), forms a chamber isolated from the environment and arranged between the detaching roller (24), the enveloping circle (HK) of the combing cylinder (16) and the periphery (33a) of the circulating first means (33), wherein a subregion of the isolated chamber is formed by the periphery (33a) of the means (33), by a circumferential region of the detaching roller (24), a subregion of the enveloping circle (HK) of the combing cylinder (16) and by the pivotable flap (46).
- The combing machine according to claim 4, characterized in that within the first means (33), a second means (35) is provided for the chronologically synchronized control of the free air passage between the environment of the first means (33) and the vacuum source (38) at least over a subregion of the openings (O) during the transfer of the fiber bundle (FP).
- The combing machine according to claim 5, characterized in that the second means (35) is connected to a drive and has at least one opening (S1, S2) on its circumference, which opening extends approximately over the width of the drawn-off fiber bundle (FP) and via which a connection between openings (O) of the first means (33) and the vacuum source (38) can be established.
- The combing machine according to any one of the claims 4 to 6, characterized in that in the region of the casing (31), at least one adjustable element (26) is provided which is suitable for controlling at least one opening (54) for an air passage between the isolated chamber and the ambient air of the casing (31).
- The combing machine according to claim 7, characterized in that the adjustable element consists of a further flap (26) which is pivotable about a pivot axis (27) and which - viewed transverse to the transport direction (R) of the fiber bundle (FP) - extends substantially over the length of the detaching roller (24).
- The combing machine according to claim 8, characterized in that the pivot axis (27) of the flap (26) is arranged in the region below the detaching roller (24) and the free end of the flap points in the direction of the detaching roller.
- The combing machine according to claim 9, characterized in that in the open position, the free end of the flap (26) forms a nip point with the first means (33).
- The combing machine according to claim 8, characterized in that the further pivotable flap (26) runs adjacent to the flap (46) for controlling the material flow.
- The combing machine according to claim 7, characterized in that the adjustable element (26) is fixedly connected to the pivotable flap (46).
- The combing machine according to claim 4, characterized in that at least one opening (58) is provided in the region of the suction channel (52) which opening connects the suction channel with the ambient air, and means (56) are provided to open and close the opening during a nip.
- The combing machine according to claim 14, characterized in that the means (56) is connected to the pivotable flap (46).
- The combing machine according to claim 2, characterized in that the length of the pivotable flap (46) is dimensioned such that the free end of the flap (46), at least in the position pivoted furthest away from the combing cylinder (16), has a protrusion dimension (a) which extends from the intersection point of the flap (46) with the tangent (C), which tangent runs through the nip point (KA) of the detaching roller (24) with detaching segment (20), towards the free end.
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PCT/CH2007/000322 WO2008011733A1 (en) | 2006-07-25 | 2007-07-02 | Combing machine |
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WO2015019139A1 (en) | 2013-08-06 | 2015-02-12 | Maschinenfabrik Rieter Ag | Cleaning device for a combing cylinder of a combing machine |
WO2016067155A1 (en) | 2014-10-28 | 2016-05-06 | Maschinenfabrik Rieter Ag | Cleaning device for a circular comb of a combing machine |
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CH699788A2 (en) * | 2008-10-24 | 2010-04-30 | Rieter Ag Maschf | Combing device for combing a fibrous material with setting Ecartements. |
CH701420A2 (en) | 2009-07-10 | 2011-01-14 | Rieter Ag Maschf | Device for forming a sliver. |
CH702008A2 (en) * | 2009-10-08 | 2011-04-15 | Rieter Ag Maschf | Comber sliver with guide means. |
CH715431A1 (en) * | 2018-10-04 | 2020-04-15 | Graf Cie Ag | Round comb for a clamping machine. |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE640041C (en) * | 1935-04-19 | 1936-12-19 | Saechs Textilmaschinenfabrik V | Device for tearing off and piling up the fibers on combed machines |
DE2139305C3 (en) * | 1971-08-05 | 1975-06-05 | Sant'andrea Novara Officine Meccaniche E Fonderie S.P.A., Novara (Italien) | Method and device for pneumatically influencing the fiber alignment on combing machines |
IT1011122B (en) * | 1974-03-21 | 1977-01-20 | Tematex Spa | DEVICE FOR OVERLAPPING THE INITIAL CIOCCA OF A TAPE OF TEXTILE FIBERS TO THE FINAL CIOCCA OF A TAPE ALREADY TREATED IN COMBERS OR SIMILAR |
CN1090255C (en) * | 1996-03-29 | 2002-09-04 | 里特机械公司 | Detaching and piecing apparatus in combing machine |
AUPO359896A0 (en) * | 1996-11-14 | 1996-12-05 | Commonwealth Scientific And Industrial Research Organisation | Tuft tail control in textile combing |
EP1774073B1 (en) * | 2004-08-05 | 2008-06-25 | Maschinenfabrik Rieter Ag | Comber |
-
2007
- 2007-07-02 WO PCT/CH2007/000322 patent/WO2008011733A1/en active Application Filing
- 2007-07-02 CN CN2007800279094A patent/CN101495685B/en not_active Expired - Fee Related
- 2007-07-02 EP EP07720219A patent/EP2044249B1/en not_active Ceased
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015019139A1 (en) | 2013-08-06 | 2015-02-12 | Maschinenfabrik Rieter Ag | Cleaning device for a combing cylinder of a combing machine |
WO2016067155A1 (en) | 2014-10-28 | 2016-05-06 | Maschinenfabrik Rieter Ag | Cleaning device for a circular comb of a combing machine |
Also Published As
Publication number | Publication date |
---|---|
CN101495685B (en) | 2011-01-26 |
CN101495685A (en) | 2009-07-29 |
WO2008011733A1 (en) | 2008-01-31 |
EP2044249A1 (en) | 2009-04-08 |
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