EP2108721A1 - Drive for detaching rollers in a combing machine - Google Patents
Drive for detaching rollers in a combing machine Download PDFInfo
- Publication number
- EP2108721A1 EP2108721A1 EP09003345A EP09003345A EP2108721A1 EP 2108721 A1 EP2108721 A1 EP 2108721A1 EP 09003345 A EP09003345 A EP 09003345A EP 09003345 A EP09003345 A EP 09003345A EP 2108721 A1 EP2108721 A1 EP 2108721A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gear
- drive
- web
- shaft
- differential gear
- 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.)
- Withdrawn
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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
- D01G19/26—Driving arrangements
-
- 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
- D01G19/14—Drawing-off and delivery apparatus
- D01G19/18—Roller, or roller and apron, devices, e.g. operating to draw-off fibres continuously
- D01G19/20—Roller, or roller and apron, devices, e.g. operating to draw-off fibres continuously operating to draw-off fibres intermittently
Definitions
- the invention relates to a drive device for generating a mitble for the tear-off rollers of a comber according to the preamble of claim 1.
- the tear-off rollers perform a step movement. That is, before a further tearing off the already formed nonwoven fabric is conveyed back by a certain amount in the direction of the nipper unit to connect a new fiber package with the end of the nonwoven fabric. This requires a very special drive to produce such a vocational movement for the Abreisswalzen.
- this movement is generated using a differential gear.
- the web of the differential gear in which the sun gears are mounted, driven by a continuously driven gear which is in driving connection with a web wheel connected to the web.
- the gear sits in the present case against rotation on the drive shaft for the circular comb.
- Via an eccentric drive which is in connection with a lever mechanism, a discontinuous movement is transmitted to the differential gear axis and thus to a first sun gear connected to it.
- the above-described continuous drive movement is superimposed and generates the desired vocational movement for the Abreisswalzen.
- This gear design has proven itself for many years, but requires a complex and stable design to absorb the resulting high acceleration forces can. With ever higher demands on the Kammspielmidsky the limits of the load capacity of this gear design are also reached at some point. There are therefore already several proposals have been made to realize the vocational movement with other means and gear units.
- the differential gear can be provided with two gear stages, wherein the planet gears of the first and the second gear stage are rotatably mounted on a common shaft in coaxial distance and the sun gear of the second gear stage rotatably connected to the output shaft and the sun gear and the planet or the planet the second gear stage are designed as non-circular gears.
- the use of two gear stages with non-circular gears further increases the flexibility of the differential gear.
- the adaptation of the transmission to obtain an optimized course of movement of Abreisswalzen is further increased by the use of the second gear stage with non-circular gears.
- a combination would also be conceivable, with round gears being used at the second gear stage.
- the required ratio can be optimally distributed to two gear stages.
- Fig. 1 shows a differential gear 1 with a circumferential ridge 2, which is rotatably mounted on one side via the bearing 6.
- the bearing 6 is supported on a central shaft 5, which is rotatably supported in the machine frame MS in the present case.
- On the opposite side of the web 2 is rotatably mounted in a bearing 7.
- the bearing 7 is supported on a hollow shaft 9, which is supported on the schematically indicated bearing 8 on the shaft 5 already described.
- the circumferential web 2 is provided with a web wheel 3, which is fixedly connected to the web.
- Another alternative is shown in an enlarged view Fig. 4 shown, wherein the web wheel 3 is provided with a superior base body 12.
- longitudinal slots 14 are provided on both sides whose longitudinal extent in the circumferential direction of the web 2 extends.
- these slots 14 in each case one or more screws 13, which are fastened in threaded bores 15 of the web 2.
- the web wheel 3 is fixed relative to the web 2.
- the web wheel can be rotated relative to the web by an amount in the circumferential direction, whereby its angular position relative to the web changed.
- adjustments are possible with respect to the position of the tear-off position of the tear-off rollers for the nipper unit (not shown). This will be described later in more detail.
- a gear Z is engaged and in drive connection.
- the gear Z is rotatably mounted on a mounted in the machine frame drive shaft 20 which is connected via a schematically indicated gear unit G with a motor M in drive connection.
- Fig. 1 is another adjustment (with respect to the example Figure 4 ), wherein the gear Z is connected to a hollow shaft 22 having a flange 23 and coaxial with the drive shaft 20th runs.
- the flange 23 is opposite to a flange 25, which is also coaxial with the shaft 20 and rotatably connected to the shaft 20 via a spring 28 which projects into a groove 29 of the shaft 20.
- the flange is secured by a screw 27 indicated schematically.
- both flanges 23, 25 are fixed against each other.
- the gear Z is fixed in rotation on the shaft 20.
- a slot 30 is provided in the region of the screw connection 24, via which, after the screw connection 24 has been released, a change in the angular position between the gear Z and the shaft 20 can be performed. Even with this device, a shift of the Abreisszeitifiess the Abreisswalzen to the position of the nipper unit is possible.
- the drive of the Abreisswalzen A1, A2 via the continuously driven gear Z, which offset the bridge 2 via the web 3 in rotational movement.
- the sun gear U4 is fixedly connected to a hollow shaft 9, which, as already described, is rotatably supported by bearings 8 on the fixedly mounted shaft 5.
- a gear Z1 is fixed, which in turn is in drive connection with the gears Z2 and Z3.
- the gears Z2, Z3 are connected via the shafts W1, W2 with the Abwalwalzen A1, A2.
- the Abreisswalzen A1, A2, and the waves W1, W2 are mounted on the schematically indicated bearings L in the machine frame MS.
- the movement curve of the tear-off rollers A1, A2 achieved by the two gear stages is shown schematically in the diagram Figure 3 shown.
- the tear-off rollers perform a backward movement, as a result of which the already formed nonwoven fabric is transported back in the direction of the nipper unit. Then, a reversing movement and the Abreisswalzen move forward to perform the Abreisvorgang.
- the 0-line superior amount then represents the actual funding amount of the nonwoven fabric.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Preliminary Treatment Of Fibers (AREA)
- Retarders (AREA)
Abstract
Description
Die Erfindung bezieht sich auf eine Antriebsvorrichtung zur Erzeugung einer Pilgerschrittbewegung für die Abreisswalzen einer Kämmmaschine nach dem Oberbegriff nach Anspruch 1.The invention relates to a drive device for generating a pilgrim movement for the tear-off rollers of a comber according to the preamble of
Für den Abreiss- und Lötvorgang bei einer Kämmmaschine führen die Abreisswalzen eine Pilgerschrittbewegung durch. D.h., vor einem weiteren Abreissvorgang wird das bereits gebildete Faservlies um einen bestimmten Betrag in Richtung des Zangenaggregates zurückbefördert, um ein neues Faserpaket mit dem Ende des Faservlieses zu verbinden. Das erfordert einen sehr speziellen Antrieb um eine derartige Pilgerschrittbewegung für die Abreisswalzen zu erzeugen.
In der
Es sind deshalb schon mehrere Vorschläge gemacht worden, um die Pilgerschrittbewegung mit anderen Mitteln und Getriebeeinheiten zu realisieren. Zum einen wurde vorgeschlagen, die Abreisswalzen direkt über einen oder mehrere Elektromotoren anzutreiben. Eine derartige Lösung ist z. B. aus der
Aus der
Ebenso ist in der nach veröffentlichten
Bei den beschriebenen Lösungen der US'555 und der CN'458.7 kann zwar anhand der verwendeten Getriebestufen mit unrunden Zahnrädern eine entsprechende Pilgerschrittbewegung erzielt werden, jedoch ist eine Anpassung dieser Bewegung (z. B. eine zeitliche Verschiebung in Bezug auf den Antrieb der übrigen Aggregate) nicht vorgesehen.
Die Erfindung stellt sich nunmehr die Aufgabe eine die bekannten Lösungen, wobei ein Differentialgetriebe mit Getriebestufen mit unrunden Zahnrädern für den Antrieb der Abreisswalzen vorgeschlagen wird derart weiterzubilden, so dass mit einfachen Mitteln eine zeitliche Anpassung der Bewegungskurve für den Antrieb der Abreisswalzen ermöglicht wird.
Diese Aufgabe wird dadurch gelöst, indem vorgeschlagen wird, dass Mittel vorzusehen, über welche die Antriebsverbindung zwischen der Antriebswelle und dem angetriebenen Steg des Differentialgetriebes entkoppelbar ist und eine Verstellung der Drehwinkelposition zwischen dem Steg und der Antriebswelle ermöglichen. Der Begriff "entkoppelbar" beinhaltet auch, dass die Antriebsverbindung im Anschluss an die Verstellung wieder geschlossen werden kann.For the tear-off and soldering process in a combing machine, the tear-off rollers perform a pilgrim step movement. That is, before a further tearing off the already formed nonwoven fabric is conveyed back by a certain amount in the direction of the nipper unit to connect a new fiber package with the end of the nonwoven fabric. This requires a very special drive to produce such a pilgrim movement for the Abreisswalzen.
In the
There are therefore already several proposals have been made to realize the pilgrim movement with other means and gear units. On the one hand, it has been proposed to drive the tear-off rollers directly via one or more electric motors. Such a solution is z. B. from the
From the
Similarly, in the post-published
In the described solutions of US'555 and CN'458.7, although a corresponding pilgrim step movement can be achieved on the basis of the gear stages used with non-circular gears, an adaptation of this movement (eg a time shift with respect to the drive of the remaining units ) not provided.
The invention now has the object of the known solutions, wherein a differential gear with gear stages with non-circular gears for driving the Abreisswalzen is proposed in such a way so that with simple means a temporal adjustment of the movement curve for driving the Abreisswalzen is possible.
This object is achieved by proposing that provide means over which the drive connection between the drive shaft and the driven web of the differential gear can be decoupled and allow adjustment of the rotational angular position between the web and the drive shaft. The term "decoupled" also includes that the drive connection can be closed again after the adjustment.
Mit der vorgeschlagenen Vorrichtung kann z. B. der Abreisszeitpunkt der Abreisswalzen in bezug auf die Zangenbewegung eingestellt werden.With the proposed device can, for. B. the Abreisszeitpunkt the Abreisswalzen be adjusted with respect to the forceps movement.
Dabei wird eine spezielle Lösung vorgeschlagen, wobei das Zahnrad auf der Antriebswelle über Befestigungsmittel lösbar befestigt ist und die Winkelposition zwischen der Antriebswelle und dem Zahnrad über Mittel einstellbar ist.In this case, a special solution is proposed, wherein the gear on the drive shaft via fastening means is releasably secured and the angular position between the drive shaft and the gear via means is adjustable.
Des weiteren ist eine Lösung möglich, wobei vorgeschlagen wird, das Stegrad auf dem Steg des Differentialgetriebes über Mittel lösbar zu befestigten und - in Umfangsrichtung des Steges gesehen - gegenüber dem Steg in seiner Winkelposition über Stellmittel einstellbar vorzusehen.
Vorteilhafterweise kann das Differentialgetriebe mit zwei Getriebestufen versehen sein, wobei die Planetenräder der ersten und der zweiten Getriebestufe drehfest auf einer gemeinsamen Welle in koaxialem Abstand befestigt sind und das Sonnenrad der zweiten Getriebestufe drehfest mit der Abtriebswelle verbunden ist und auch das Sonnenrad und das oder die Planetenräder der zweiten Getriebestufe als Unrundzahnräder ausgebildet sind. Mit der Verwendung von zwei Getriebestufen mit unrunden Zahnrädern wird die Flexibilität des Differentialgetriebes noch erhöht. Das heisst, die Anpassung des Getriebes zum Erhalt eines optimierten Bewegungsverlaufes der Abreisswalzen wird durch den Einsatz der zweiten Getriebestufe mit unrunden Zahnrädern noch erhöht. Es wäre jedoch auch eine Kombination denkbar, wobei an der zweiten Getriebestufe runde Zahnräder zum Einsatz kommen. In jedem Fall kann die benötigte Übersetzung auf zwei Getriebestufen optimal verteilt werden.Furthermore, a solution is possible, wherein it is proposed that the web wheel on the web of the differential gear via means releasably secured and - seen in the circumferential direction of the web - to provide adjustable relative to the web in its angular position via adjusting means.
Advantageously, the differential gear can be provided with two gear stages, wherein the planet gears of the first and the second gear stage are rotatably mounted on a common shaft in coaxial distance and the sun gear of the second gear stage rotatably connected to the output shaft and the sun gear and the planet or the planet the second gear stage are designed as non-circular gears. The use of two gear stages with non-circular gears further increases the flexibility of the differential gear. That is, the adaptation of the transmission to obtain an optimized course of movement of Abreisswalzen is further increased by the use of the second gear stage with non-circular gears. However, a combination would also be conceivable, with round gears being used at the second gear stage. In any case, the required ratio can be optimally distributed to two gear stages.
Weitere Vorteile der Erfindung werden anhand nachfolgender Ausführungsbeispiele näher aufgezeigt und beschrieben.
Es zeigen:
- Fig. 1
- eine schematische Schnittdarstellung eines erfindungsgemäss ausgebildeten Differentialgetriebes mit Unrundzahnrädern.
- Fig. 2
- eine Ansicht X nach
Fig. 1 - Fig. 3
- ein Diagramm mit einem Kurvenverlauf der Abreisswalzenbewegung während eines Kammspieles
- Fig. 4
- eine vergrösserte Teilansicht nach
Fig.1 mit einem Beispiel für die Befestigung und Verstellung für das Stegrad des Differentialgetriebes
Show it:
- Fig. 1
- a schematic sectional view of an inventively designed differential gear with non-circular gears.
- Fig. 2
- a view X after
Fig. 1 - Fig. 3
- a diagram with a curve of the Abreisswalzenbewegung during a comb play
- Fig. 4
- an enlarged partial view
Fig.1 with an example of the attachment and adjustment for the web gear of the differential gear
Der umlaufende Steg 2 ist mit einem Stegrad 3 versehen, welches fest mit dem Steg verbunden ist. Ein andere Alternative wird in einer vergrösserten Darstellung in
Mit dem Stegrad 3 ist ein Zahnrad Z im Eingriff und in Antriebsverbindung. Das Zahnrad Z ist dabei drehfest auf einer im Maschinengestell gelagerten Antriebswelle 20 befestigt, welche über eine schematisch angedeutete Getriebeeinheit G mit einem Motor M in Antriebsverbindung steht. In
Der Antrieb der Abreisswalzen A1, A2 erfolgt über das kontinuierlich angetriebene Zahnrad Z, welches über das Stegrad 3 den Steg 2 in Drehbewegung versetzt. Durch diese Drehbewegung werden auch die mit dem Steg 2 verbundenen Lageraufnahmen L1, L2 bewegt, in welchen über die Welle 33 die unrunden Planetenräder U1 und U3 drehbar gelagert sind. Beide Planetenräder U1, U2 sind drehfest auf der Welle 33 befestigt. Das Planetenrad U1 rollt dabei auf dem feststehenden unrunden Sonnenrad U2 der ersten Getriebestufe G1 ab, wodurch entsprechend der unrunden Formen eine resultierende ungleichförmige Drehbewegung der Welle 33 erzeugt wird. Diese Drehbewegung wird über das zweite Planetenrad U3 in der zweiten Getriebestufe G2 auf das unrunde Sonnenrad U4 übertragen. Das Sonnenrad U4 ist fest mit einer Hohlwelle 9 verbunden, die, wie bereits beschrieben, über die Lager 8 auf der fix gelagerten Welle 5 drehbar gelagert ist.
Am gegenüberliegenden Ende der Hohlwelle 9 ist fix ein Zahnrad Z1 befestigt, welches wiederum mit den Zahnrädern Z2 und Z3 in Antriebsverbindung steht. Die Zahnräder Z2, Z3 sind über die Wellen W1, W2 mit den Abreiswalzen A1, A2 verbunden. Die Abreisswalzen A1, A2, bzw. die Wellen W1, W2 sind über die schematisch angedeuteten Lager L im Maschinengestell MS gelagert.
Die durch die beiden Getriebestufen erzielte Bewegungskurve der Abreisswalzen A1, A2 ist schematisch im Diagramm nach
The
With the
The drive of the Abreisswalzen A1, A2 via the continuously driven gear Z, which offset the
At the opposite end of the
The movement curve of the tear-off rollers A1, A2 achieved by the two gear stages is shown schematically in the diagram
Claims (4)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH5532008 | 2008-04-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2108721A1 true EP2108721A1 (en) | 2009-10-14 |
Family
ID=40937343
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09003345A Withdrawn EP2108721A1 (en) | 2008-04-08 | 2009-03-07 | Drive for detaching rollers in a combing machine |
Country Status (2)
Country | Link |
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EP (1) | EP2108721A1 (en) |
CN (1) | CN101555640A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102560753A (en) * | 2010-12-16 | 2012-07-11 | 中原工学院 | Elliptical gear and cylindrical gear combined variable-speed device for cylinder of combing machine |
CN103409858A (en) * | 2013-08-08 | 2013-11-27 | 天津工业大学 | Controllable drive method for cotton comber detaching rollers based on time-sharing unidirectional hybrid drive |
DE102012011030A1 (en) * | 2012-06-05 | 2013-12-05 | Trützschler GmbH & Co Kommanditgesellschaft | Device on a combing machine with a drive device for generating a pilgrim movement for the Abreißwalzen |
EP3514273A1 (en) * | 2018-01-23 | 2019-07-24 | Maschinenfabrik Rieter AG | Drive device for a combing machine |
WO2021209184A1 (en) * | 2020-04-16 | 2021-10-21 | TRüTZSCHLER GMBH & CO. KG | Transmission, drive assembly and spinning machine |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102534874A (en) * | 2010-12-16 | 2012-07-04 | 中原工学院 | Cylinder transmission device of elliptic gear transmission type combing machine |
CN103835031A (en) * | 2012-11-27 | 2014-06-04 | 江苏凯宫机械股份有限公司 | Cylinder speed changing mechanism of cotton spinning combing machine |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE85247C (en) | ||||
US1818555A (en) | 1929-09-05 | 1931-08-11 | Whitin Machine Works | Detaching roll motion |
US2536754A (en) * | 1949-02-19 | 1951-01-02 | John S Dudley | Detaching motion |
US3424021A (en) * | 1967-05-23 | 1969-01-28 | Ferdinand Freudenstein | Intermittent motion mechanism employing non-circular gears |
DE1685575A1 (en) | 1967-09-30 | 1971-08-12 | Rieter Ag Maschf | Control device for tear-off rollers of combing machines |
US3604063A (en) | 1969-05-02 | 1971-09-14 | Maremont Corp | Textile comber detaching roll drive |
US3960024A (en) * | 1974-07-13 | 1976-06-01 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Apparatus for driving detaching rollers in textile combing machines |
EP0374723A2 (en) | 1988-12-23 | 1990-06-27 | Maschinenfabrik Rieter Ag | Combing machine |
EP1043430A2 (en) * | 1999-03-31 | 2000-10-11 | Maschinenfabrik Rieter Ag | Apparatus for driving detaching rollers of a combing machine |
-
2009
- 2009-03-07 EP EP09003345A patent/EP2108721A1/en not_active Withdrawn
- 2009-04-07 CN CNA2009101330648A patent/CN101555640A/en active Pending
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE85247C (en) | ||||
US1818555A (en) | 1929-09-05 | 1931-08-11 | Whitin Machine Works | Detaching roll motion |
US2536754A (en) * | 1949-02-19 | 1951-01-02 | John S Dudley | Detaching motion |
US3424021A (en) * | 1967-05-23 | 1969-01-28 | Ferdinand Freudenstein | Intermittent motion mechanism employing non-circular gears |
DE1685575A1 (en) | 1967-09-30 | 1971-08-12 | Rieter Ag Maschf | Control device for tear-off rollers of combing machines |
US3604063A (en) | 1969-05-02 | 1971-09-14 | Maremont Corp | Textile comber detaching roll drive |
US3960024A (en) * | 1974-07-13 | 1976-06-01 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Apparatus for driving detaching rollers in textile combing machines |
EP0374723A2 (en) | 1988-12-23 | 1990-06-27 | Maschinenfabrik Rieter Ag | Combing machine |
EP1043430A2 (en) * | 1999-03-31 | 2000-10-11 | Maschinenfabrik Rieter Ag | Apparatus for driving detaching rollers of a combing machine |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102560753A (en) * | 2010-12-16 | 2012-07-11 | 中原工学院 | Elliptical gear and cylindrical gear combined variable-speed device for cylinder of combing machine |
DE102012011030A1 (en) * | 2012-06-05 | 2013-12-05 | Trützschler GmbH & Co Kommanditgesellschaft | Device on a combing machine with a drive device for generating a pilgrim movement for the Abreißwalzen |
CN103409858A (en) * | 2013-08-08 | 2013-11-27 | 天津工业大学 | Controllable drive method for cotton comber detaching rollers based on time-sharing unidirectional hybrid drive |
CN103409858B (en) * | 2013-08-08 | 2015-09-23 | 天津工业大学 | Based on the controlled driving method of separating roller for cotton combing machine of the unidirectional combination drive of timesharing |
EP3514273A1 (en) * | 2018-01-23 | 2019-07-24 | Maschinenfabrik Rieter AG | Drive device for a combing machine |
CH714583A1 (en) * | 2018-01-23 | 2019-07-31 | Rieter Ag Maschf | Drive device for a combing machine. |
WO2021209184A1 (en) * | 2020-04-16 | 2021-10-21 | TRüTZSCHLER GMBH & CO. KG | Transmission, drive assembly and spinning machine |
Also Published As
Publication number | Publication date |
---|---|
CN101555640A (en) | 2009-10-14 |
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