EP0268187B1 - Article draw-off device at a flat bed knitting machine - Google Patents
Article draw-off device at a flat bed knitting machine Download PDFInfo
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- EP0268187B1 EP0268187B1 EP87116592A EP87116592A EP0268187B1 EP 0268187 B1 EP0268187 B1 EP 0268187B1 EP 87116592 A EP87116592 A EP 87116592A EP 87116592 A EP87116592 A EP 87116592A EP 0268187 B1 EP0268187 B1 EP 0268187B1
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- European Patent Office
- Prior art keywords
- pressure
- roller
- fabric draw
- pressure rollers
- arrangement according
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
- D04B15/88—Take-up or draw-off devices for knitting products
- D04B15/90—Take-up or draw-off devices for knitting products for flat-bed knitting machines
Definitions
- the invention relates to a goods take-off device on flat knitting machines, with a driven goods take-off roller consisting of a plurality of roller elements and with the pressure elements of a material pressure roller assigned to the roller elements, which are seated on a common swivel shaft and can be pressed resiliently against the respective roller element, wherein the pressure rollers can be swiveled together into variable end positions and can be swung out of these, and the contact pressure of each pressure roller is individually adjustable.
- a goods take-off device of the type mentioned is known.
- the known goods take-off has a hook take-off serving as an auxiliary take-off, which, in cooperation with the roller take-off, causes the knitted fabric to be pulled off.
- the adjustment and adjustment of the pull-off forces is only possible to a limited extent by the roller take-off, since the wrap angle always remains constant in the known arrangement.
- a goods take-off device in which the knitted fabric runs around the goods take-off roller with a wrap angle.
- the drive for the take-off roller is carried out by a gear rotating field magnet, which is controlled to change the pull-off force.
- the goods take-off roller is formed in one piece and does not consist of several roller elements, so that individual adjustment across the machine width is not possible.
- a goods take-off device in which the goods take-off roller is made in one piece is known from DE-C 651 296. A drive of the one-piece goods take-off roller cannot be seen there.
- the most frequently used goods take-off device on flat knitting machines generally have a goods pull-in roller and a goods pressure roller.
- the knitted fabric which comes from the needles between the two rollers, is pulled by a driven goods take-off roller.
- the material pressure roller has the task of pressing the knitted fabric onto the material take-off roller and determining the wrap angle through which the fabric is passing around the material take-off roller.
- the take-off roller as is known for example from DE-PS 33 31 052, consists of a number of short roller elements corresponding to the width of the needle space, which independently of one another influence the knitted pull-off force in a spring-loaded manner over a certain rotation angle.
- the goods pressure roller in turn has pressure rollers which can be pressed resiliently against the respective roller elements.
- the pressure rollers In order to obtain a uniform knitted fabric pull-off, the pressure rollers have to be adjusted more or less differently in terms of their pressure force.
- the adjustment depends on the yarn to be processed and the binding of the knitted fabric that is to be pulled off. If the pinch rollers are adjusted so that the knitted fabric is pulled off evenly, the rows of stitches leaving the goods take-off device horizontally without a bow, and then the total pressure force has to be changed evenly, all pinch rollers must be adjusted in parallel and readjusted.
- the invention has for its object to provide a goods take-off device of the type described above, with which an adjustable, reproducibly uniform knitted fabric is obtained.
- This object is achieved in that the axis of rotation of the caster can be adjusted horizontally and vertically relative to the central axis of the goods take-off roller parallel to two coordinate axes.
- the axis of rotation of the swivel roller can be adjusted horizontally and vertically with respect to the central axis of the goods take-off roller parallel to two coordinate axes and, in a further development of the invention, can be pivoted on a circular arc around the central axis of the goods take-off roller. This allows the wrap angle ⁇ , which the knitted fabric passes through the material take-off roller, to be adjusted automatically in accordance with the take-off conditions.
- the pressure rollers can each be driven individually by an electric motor.
- an electric motor axially arranged on the pivot shaft is expediently provided.
- a stepping motor acting on one compression spring each is advantageously provided for adjusting the contact pressure of the pressure rollers.
- An electric motor connected to the swivel shaft is expediently provided for parallel adjustment or swiveling of the swivel shaft relative to the goods take-off roller.
- individual stepping motors are advantageously provided for driving the pressure rollers.
- the electric motor for swiveling in and out, the stepper motor for adjusting the contact pressure, the electric motor for parallel adjustment or swiveling and / or the stepper motors for driving the pressure rollers can advantageously be controlled via a machine control of the flat knitting machine.
- the goods take-off device shown in FIGS. 1 and 2 has a goods take-off roller 2 consisting of several roller elements and a goods pressure roller consisting of several change pressure rollers 3.
- the pressure rollers 3 of the fabric pressure roller have the task of pressing the knitted fabric 1 against the fabric take-off roller 2 and the Wrap angle ⁇ that the knitted fabric 1 passes through the goods take-off roller 2.
- the take-off roller 2 consists of a number of short roller elements which correspond to the width of the needle space and which, independently of one another, have a spring-loaded effect on the fabric pull-off force in a different manner via a certain angle of rotation.
- a pressure roller 3 of the goods pressure roller is assigned to each roller element.
- the pressure rollers 3 are mounted on a rotatable and lockable pivot shaft 5 provided with a locking lever or handle 4 so that they face the roller elements of the goods take-off roller 2 exactly.
- Bearings 6 of the pressure rollers 3 are firmly connected to the pivot shaft 5.
- Each pressure roller 3 is spring-loaded adjustable by means of a compression spring 7 and a grip screw 8.
- One position is the pivoted-out position shown in FIG. 2, in which the pressure rollers 3 do not rest against the goods take-off roller 2.
- the other position is the position shown in FIG. 1, in which the pressure rollers 3 bear against the goods take-off roller 2 and are held in this position in a latched manner.
- the pressure rollers 3 In order to obtain a uniform knitted pull-off when knitting, the pressure rollers 3 must be adjusted more or less differently in terms of their pressure force. The adjustment depends on the yarn to be processed and the binding of the knitted fabric that is to be pulled off. The pressure rollers 3 are set so that the knitted fabric 1 is pulled off evenly. This is great recognizable in the case of colored rings, the rows of stitches having to leave the goods take-off device horizontally without a sheet. If the total pressure force is then to be changed evenly, then all pressure rollers 3 must be adjusted in parallel and readjusted.
- the pressure rollers 3 are swiveled out and in using the handle 4, which is pinned on the swivel shaft 5, and carried out by hand.
- Fig. 3 shows a goods take-off device, which is designed to achieve an automatically adjustable, reproducibly uniform knitted fabric such that the pressure rollers 3 can be pivoted together into variable end positions and pivoted out of these and the contact pressure of each pressure roller 3 is individually adjustable by an electric motor.
- the pressure rollers 3 can be pivoted together by electric motors into variable pivoted end positions, as shown in FIG. 3, so that the basic position of differently adjusted pressure rollers 3 on the knitted fabric 1 can be changed accordingly.
- the pressure rollers 3 are also pivoted out together via the electric motor 9.
- a stepping motor 11 which works on a compression spring 7 of each individual pressure roller 3, is provided, by the action of which the contact pressure of the pressure rollers 3 can be individually adjusted.
- An electric motor 13 connected to the pivot shaft 5 makes it possible to adjust the axis of rotation 10 of the pivot shaft 5 relative to the central axis 14 of the goods take-off roller 2 either horizontally and vertically in parallel in two coordinate axes (double arrows A), or to pivot the pivot shaft 5 by motor on a circular arc around the central axis 14 of the goods take-off roller 2 ( Double arrows B). This allows the wrap angle ⁇ to be adjusted automatically and by motor in a manner adapted to the trigger conditions.
- a single stepping motor 12 can be provided with each of the pressure rollers 3 for driving the pressure rollers 3.
- the electric motor 9, the stepping motor 11, the electric motor 13 and / or the stepping motors 12 can advantageously be controlled via a machine control (not shown) of the flat knitting machine.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Knitting Machines (AREA)
Description
Die Erfindung betrifft eine Warenabzugseinrichtung an Flachstrickmaschinen, mit einer angetriebenen, aus mehreren Walzenelementen bestehenden Warenabzugswalze und mit den Walzenelementen zugeordneten Andruckrollen einer Warenandruckwalze, die auf einer gemeinsamen Schwenkwelle sitzen und einstellbar federnd gegen das jeweilige Walzenelement drückbar sind, wobei die Andruckrollen gemeinsam in variable Endstellungen einschwenkbar und aus diesen ausschwenkbar sind, und die Anpreßkraft jeder Andruckrolle einzeln verstellbar ist.The invention relates to a goods take-off device on flat knitting machines, with a driven goods take-off roller consisting of a plurality of roller elements and with the pressure elements of a material pressure roller assigned to the roller elements, which are seated on a common swivel shaft and can be pressed resiliently against the respective roller element, wherein the pressure rollers can be swiveled together into variable end positions and can be swung out of these, and the contact pressure of each pressure roller is individually adjustable.
Aus der FR-A 2 079 540 ist eine Warenabzugseinrichtung der eingangs genannten Art bekannt. Der bekannte Warenabzug weist einen als Hilfsabzug dienenden Hakenabzug auf, der im Zusammenwirken mit dem Walzenabzug das Abziehen des Gestricks bewirkt. Die Justierung und Einstellung der Abzugskräfte ist durch den Walzenabzug nur begrenzt möglich, da der Umschließungswinkel bei der bekannten Anordnung immer konstant bleibt.From FR-A 2 079 540 a goods take-off device of the type mentioned is known. The known goods take-off has a hook take-off serving as an auxiliary take-off, which, in cooperation with the roller take-off, causes the knitted fabric to be pulled off. The adjustment and adjustment of the pull-off forces is only possible to a limited extent by the roller take-off, since the wrap angle always remains constant in the known arrangement.
Aus der DE-A 2 648 612 ist eine Warenabzugseinrichtung bekannt, bei der das Gestrick mit einem Umschließungswinkel um die Warenabzugswalze läuft. Der Antrieb für die Abzugswalze erfolgt durch einen Getriebe-Drehfeldmagneten, der zur Änderung der Abzugskraft gesteuert wird. Die Warenabzugswalze ist dabei einstückig ausgebildet und besteht nicht aus mehreren Walzenelementen, sodaß eine individuelle Einstellung über die Maschinenbreite hinweg nicht möglich ist.From DE-A 2 648 612 a goods take-off device is known in which the knitted fabric runs around the goods take-off roller with a wrap angle. The drive for the take-off roller is carried out by a gear rotating field magnet, which is controlled to change the pull-off force. The goods take-off roller is formed in one piece and does not consist of several roller elements, so that individual adjustment across the machine width is not possible.
Eine Warenabzugseinrichtung, bei der die Warenabzugswalze einstückig ausgebildet ist, ist aus der DE-C 651 296 bekannt. Ein Antrieb der einstückigen Warenabzugswalze ist dort nicht zu erkennen.A goods take-off device in which the goods take-off roller is made in one piece is known from DE-C 651 296. A drive of the one-piece goods take-off roller cannot be seen there.
Weiter ist durch die FR-A 972 602 bekannt geworden, einen von einer Jacquardeinrichtung intermittierend gesteuerten Elektromagneten vorzusehen, der im jeweils eingeschalteten Zustand über ein Hebelgestänge mehrere Andruckrollen gemeinsam von einer einstückigen Warenabzugswalze abhebt.It has also become known from FR-A 972 602, one controlled intermittently by a jacquard device To provide electromagnets that, when switched on, lift several pressure rollers together from a one-piece goods take-off roller via a lever linkage.
Die am häufigsten verwendete Warenabzugseinrichtung an Flachstrickmaschinen weisen im allgemeinen eine Warenahzugswalze und eine Warenandruckwalze auf. Das Gestrick, das von den Nadeln kommend zwischen den beiden Walzen hindurchläuft, wird von einer angetriebenen Warenabzugswalze gezogen. Die Warenandruckwalze hat die Aufgabe, das Gestrick an die Warenabzugswalze anzudrücken und den Umschlingungswinkel, den das Gestrick um die Warenabzugswalze durchläuft, festzulegen.The most frequently used goods take-off device on flat knitting machines generally have a goods pull-in roller and a goods pressure roller. The knitted fabric, which comes from the needles between the two rollers, is pulled by a driven goods take-off roller. The The material pressure roller has the task of pressing the knitted fabric onto the material take-off roller and determining the wrap angle through which the fabric is passing around the material take-off roller.
Damit der Warenabzug optimiert werden kann, besteht die Warenabzugswalze, wie beispielsweise aus der DE-PS 33 31 052 bekannt, aus einer der Nadelraumbreite entsprechenden Anzahl kurzer Walzenelemente, die unabhängig voneinander über einen bestimmten Drehwinkel federbelastet die Gestrickabzugskraft unterschiedlich beeinflussen. Die Warenandruckwalze weist ihrerseits federnd gegen die jeweiligen Walzenelemente drückbare Andruckrollen auf.So that the take-off can be optimized, the take-off roller, as is known for example from DE-PS 33 31 052, consists of a number of short roller elements corresponding to the width of the needle space, which independently of one another influence the knitted pull-off force in a spring-loaded manner over a certain rotation angle. The goods pressure roller in turn has pressure rollers which can be pressed resiliently against the respective roller elements.
Um beim Stricken einen gleichmäßigen Gestrickabzug zu erhalten, müssen die Andruckrollen mehr oder weniger unterschiedlich in ihrer Andruckkraft justiert werden.In order to obtain a uniform knitted fabric pull-off, the pressure rollers have to be adjusted more or less differently in terms of their pressure force.
Die Justierung richtet sich nach dem zu verarbeitenden Garn und der Bindung des Gestricks, das abgezogen werden soll. Wenn die Andruckrollen so eingestellt sind, daß das Gestrick gleichmäßig abgezogen wird, wobei die Maschenreihen waagerecht ohne Bogen die Warenabzugseinrichtung verlassen, und anschließend die gesamte Andruckkraft gleichmäßig verändert werden muß, so müssen sämtliche Andruckrollen parallel verstellt und neu justiert werden.The adjustment depends on the yarn to be processed and the binding of the knitted fabric that is to be pulled off. If the pinch rollers are adjusted so that the knitted fabric is pulled off evenly, the rows of stitches leaving the goods take-off device horizontally without a bow, and then the total pressure force has to be changed evenly, all pinch rollers must be adjusted in parallel and readjusted.
Der Erfindung liegt die Aufgabe zugrunde, eine Warenabzugseinrichtung der eingangs beschriebenen Art zu schaffen, mit welcher ein einstellbarer, reproduzierbar gleichmäßiger Gestrickabzug erhalten wird.The invention has for its object to provide a goods take-off device of the type described above, with which an adjustable, reproducibly uniform knitted fabric is obtained.
Diese Aufgabe wird erfindungsgemäße dadurch gelöst, daß die Drehachse der Schwenkrolle gegenüber der Mittelachse der Warenabzugswalze parallel zu zwei Koordinatenachsen horizontal und vertikal verstellbar ist.This object is achieved in that the axis of rotation of the caster can be adjusted horizontally and vertically relative to the central axis of the goods take-off roller parallel to two coordinate axes.
Die Drehachse der Schwenkrolle ist gegenüber der Mittelachse der Warenabzugswalze parallel zu zwei Koordinatenachsen horizontal und vertikal verstellbar und in Weiterbildung der Erfindung auf einem Kreisbogen um die Mittelachse der Warenabzugswalze schwenkbar. Hiermit läßt sich der Umschlingungswinkel α, den das Gestrick um die Warenabzugswalze durchläuft, den Abzugsverhältnissen angepaßt automatisch verstellen.The axis of rotation of the swivel roller can be adjusted horizontally and vertically with respect to the central axis of the goods take-off roller parallel to two coordinate axes and, in a further development of the invention, can be pivoted on a circular arc around the central axis of the goods take-off roller. This allows the wrap angle α, which the knitted fabric passes through the material take-off roller, to be adjusted automatically in accordance with the take-off conditions.
Vorteilhaft sind weiter die Andruckrollen jeweils einzeln elektromotorisch antreibbar.Furthermore, the pressure rollers can each be driven individually by an electric motor.
Zum Ein- und Ausschwenken der Andruckrollen ist zweckmäßig ein an der Schwenkwelle axial angeordneter Elektromotor vorgesehen.To pivot the pressure rollers in and out, an electric motor axially arranged on the pivot shaft is expediently provided.
Weiter ist vorteilhaft zum Verstellen der Anpreßkraft der Andruckrollen jeweils ein auf je eine Druckfeder wirkender Schrittmotor vorgesehen.Furthermore, a stepping motor acting on one compression spring each is advantageously provided for adjusting the contact pressure of the pressure rollers.
Zum Parallelverstellen oder Schwenken der Schwenkwelle gegenüber der Warenabzugwalze ist zweckmäßig ein mit der Schwenkwelle verbundener Elektromotor vorgesehen.An electric motor connected to the swivel shaft is expediently provided for parallel adjustment or swiveling of the swivel shaft relative to the goods take-off roller.
Weiter sind zum Antreiben der Andruckrollen vorteilhaft einzelne Schrittmotore vorgesehen.Furthermore, individual stepping motors are advantageously provided for driving the pressure rollers.
Der Elektromotor zum Ein- und Ausschwenken, der Schrittmotor zum Verstellen der Anpreßkraft, der Elektromotor zum Parallelverstellen oder Schwenken und/oder die Schrittmotoren zum Antreiben der Andruckrollen sind vorteilhaft über eine Maschinensteuerung der Flachstrickmaschine ansteuerbar.The electric motor for swiveling in and out, the stepper motor for adjusting the contact pressure, the electric motor for parallel adjustment or swiveling and / or the stepper motors for driving the pressure rollers can advantageously be controlled via a machine control of the flat knitting machine.
Die Erfindung ist im folgenden an Ausführungsbeispielen und anhand der Zeichnungen näher beschrieben. In den Zeichnungen zeigen
- Fig 1
- eine herkömmliche Warenabzugseinrichtung mit an der Warenabzugswalze anliegender Warenandruckwalze, schematisch im Querschnitt,
- Fig 2
- eine Warenabzugseinrichtung wie in Fig 1, jedoch mit ausgeschwenkter Warenandruckwalze, und
- Fig 3
- eine gemäß der Erfindung ausgebildete Warenabzugseinrichtung in der Stellung wie in Fig 1 dargestellt.
- Fig. 1
- a conventional goods take-off device with the goods pressure roller resting on the goods take-off roller, schematically in cross section,
- Fig. 2
- a goods take-off device as in Fig. 1, but with the goods pressure roller swung out, and
- Fig. 3
- a goods removal device designed according to the invention in the position as shown in Fig. 1.
Die in den Fig 1 und 2 dargestellte Warenabzugseinrichtung weist eine aus mehreren Walzenelementen bestehende Warenabzugswalze 2 sowie eine aus mehreren Ändruckrollen 3 bestehende Warenandruckwalze auf. Ein Gestrick 1, das von den nicht dargestellten Nadeln kommend zwischen beiden Walzen hindurchläuft, wird von der angetriebenen Warenabzugswalze 2 abgezogen. Die Andruckrollen 3 der Warenandruckwalze haben die Aufgabe, das Gestrick 1 an die Warenabzugswalze 2 anzudrücken und den Umschlingungswinkel α, den das Gestrick 1 um die Warenabzugswalze 2 durchläuft, festzulegen. Damit der Warenabzug optimiert werden kann, besteht die Warenabzugswalze 2 aus einer der Nadelraumbreite entsprechenden Anzahl kurzer Walzenelemente, die unabhängig voneinander über einen bestimmten Drehwinkel federbelastet die Gestrickabzugskraft unterschiedlich beeinflussen. Jedem Walzenelement ist eine Andruckrolle 3 der Warenandruckwalze zugeordnet. Die Andruckrollen 3 sind auf einer mit einem Rasthebel oder Handgriff 4 versehenen, dreh- und rastbaren Schwenkwelle 5 so angebracht, daß sie den Walzenelementen der Warenabzugswalze 2 genau gegenüberstehen. Lager 6 der Andruckrollen 3 sind mit der Schwenkwelle 5 fest verbunden. Jede Andruckrolle 3 ist mit Hilfe einer Druckfeder 7 und einer Griffschraube 8 einstellbar federbelastet.The goods take-off device shown in FIGS. 1 and 2 has a goods take-off roller 2 consisting of several roller elements and a goods pressure roller consisting of several change pressure rollers 3. A knitted fabric 1, which comes between the two rollers, coming from the needles (not shown), is drawn off from the driven goods take-off roller 2. The pressure rollers 3 of the fabric pressure roller have the task of pressing the knitted fabric 1 against the fabric take-off roller 2 and the Wrap angle α that the knitted fabric 1 passes through the goods take-off roller 2. So that the take-off can be optimized, the take-off roller 2 consists of a number of short roller elements which correspond to the width of the needle space and which, independently of one another, have a spring-loaded effect on the fabric pull-off force in a different manner via a certain angle of rotation. A pressure roller 3 of the goods pressure roller is assigned to each roller element. The pressure rollers 3 are mounted on a rotatable and
Die Schwenkwelle 5, die drehbar gelagert ist, nimmt zwei Positionen ein. Die eine Position ist die in Fig. 2 dargestellte ausgeschwenkte Lage, in der die Andruckrollen 3 nicht an der Warenabzugswalze 2 anliegen. Die andere Position ist die in Fig 1 dargestellte Lage, in der die Andruckrollen 3 an der Warenabzugswalze 2 anliegen und in dieser Stellung gerastet gehalten werden.The
Um beim Stricken einen gleichmäßigen Gestrickabzug zu erhalten, müssen die Andruckrollen 3 mehr oder weniger unterschiedlich in ihrer Andruckkraft justiert werden. Die Justierung richtet sich nach dem zu verarbeitenden Garn und der Bindung des Gestricks das abgezogen werden soll. Die Andruckrollen 3 werden so eingestellt, daß das Gestrick 1 gleichmäßig abgezogen wird. Dies ist bestens erkennbar bei Farbringeln, wobei die Maschenreihen waagerecht ohne Bogen die Warenabzugseinrichtung verlassen müssen. Soll anschließend die gesamte Andruckkraft gleichmäßig verändert werden, dann müssen sämtliche Andruckrollen 3 parallel verstellt und neu justiert werden.In order to obtain a uniform knitted pull-off when knitting, the pressure rollers 3 must be adjusted more or less differently in terms of their pressure force. The adjustment depends on the yarn to be processed and the binding of the knitted fabric that is to be pulled off. The pressure rollers 3 are set so that the knitted fabric 1 is pulled off evenly. This is great recognizable in the case of colored rings, the rows of stitches having to leave the goods take-off device horizontally without a sheet. If the total pressure force is then to be changed evenly, then all pressure rollers 3 must be adjusted in parallel and readjusted.
Das Aus- und Einschwenken der Andruckrollen 3 erfolgt mit Hilfe des Handgriffs 4, der auf der Schwenkwelle 5 verstiftet ist, und wird von Hand ausgeführt.The pressure rollers 3 are swiveled out and in using the handle 4, which is pinned on the
Fig 3 zeigt eine Warenabzugseinrichtung, die zum Erzielen eines automatisch einstellbaren, reproduzierbar gleichmäßigen Gestrickabzugs derart ausgebildet ist, daß die Andruckrollen 3 gemeinsam in variable Endstellungen einschwenkbar und aus diesen ausschwenkbar sind und die Anpreßkraft jeder Andruckrolle 3 einzeln elektromotorisch verstellbar ist.Fig. 3 shows a goods take-off device, which is designed to achieve an automatically adjustable, reproducibly uniform knitted fabric such that the pressure rollers 3 can be pivoted together into variable end positions and pivoted out of these and the contact pressure of each pressure roller 3 is individually adjustable by an electric motor.
Mittels eines an der Schwenkwelle 5 axial angeordneten Elektromotors 9 lassen sich die Andruckrollen 3 gemeinsam in variable eingeschwenkte Endstellungen, wie in Fig 3 dargestellt, elektromotorisch einschwenken, so daß die Basisstellung verschieden justierter Andruckrollen 3 am Gestrick 1 entsprechend verändert werden kann. Das Ausschwenken der Andruckrollen 3 erfolgt ebenfalls gemeinsam über den Elektromotor 9.By means of an electric motor 9 axially arranged on the
Weiter ist jeweils ein auf je eine Druckfeder 7 jeder einzelnen Andruckrolle 3 arbeitender Schrittmotor 11 vorgesehen, durch dessen Wirkung die Anpreßkraft der Andruckrollen 3 individuell verstellbar ist.Furthermore, a
Ein mit der Schwenkwelle 5 verbundener Elektromotor 13 ermöglicht es, die Drehachse 10 der Schwenkwelle 5 gegenüber der Mittelachse 14 der Warenabzugswalze 2 entweder in zwei Koordinatenachsen horizontal und vertikal motorisch parallel zu verstellen (Doppelpfeile A), oder die Schwenkwelle 5 motorisch auf einem Kreisbogen um die Mittelachse 14 der Warenabzugswalze 2 zu schwenken (Doppelpfeile B). Damit läßt sich der Umschlingungswinkel α den Abzugsverhältnissen angepaßt automatisch und motorisch verstellen.An electric motor 13 connected to the
Um den Abzugsverhältnissen noch weiter anpaßbare Abzugskräfte erreichen zu können, kann mit jeder der Andruckrollen 3 ein einzelner Schrittmotor 12 zum Antreiben der Andruckrollen 3 vorgesehen sein.In order to be able to achieve trigger forces which can be adjusted even further, a
Der Elektromotor 9, der Schrittmotor 11, der Elektromotor 13 und/oder die Schrittmotoren 12 sind vorteilhaft über eine nicht dargestellte Maschinensteuerung der Flachstrickmaschine ansteuerbar.The electric motor 9, the stepping
Claims (9)
- Fabric draw-off arrangement for a flat knitting machine, comprising a driven fabric draw-off member (2) consisting of a plurality of roller elements and pressure rollers (3) of a fabric pressure member, which are associated with the roller elements and which are mounted on a common rocker shaft and are adjustably and resiliently pressable against the respective roller element, which pressure rollers (3) can be pivoted together into and out of variable end positions, the pressure force of each pressure roller (3) being individually adjustable, characterized in that the rotation axis (10) of the rocker shaft (5) is horizontally and vertically adjustable relative to the central axis of the fabric draw-off member (2) parallel to two coordinate axes.
- Fabric draw-off arrangement according to claim 1, characterized in that the adjustment is achieved by electro-motor means.
- Fabric draw-off arrangement according to claim 1, characterized in that the rotation axis (10) of the rocker shaft (5) is pivotable by electro-motor means through a circular arc about the central axis (14) of the fabric draw-off member (2).
- Fabric draw-off arrangement according to any of claims 1 to 3, characterized in that the pressure rollers (3) are respectively individually drivable by electro-motor means.
- Fabric draw-off arrangement according to any of claims 1 to 4, characterized in that an electro-motor (9) is provided arranged axially on the rocker shaft (5) for pivoting of the pressure rollers (3) in and out.
- Fabric draw-off arrangement according to any of claims 1 to 5, characterized in that a stepping motor (11) is provided acting on a respective pressure spring (7) for adjusting the pressure force of the pressure rollers (3).
- Fabric draw-off arrangement according to any of claims 2 to 6, characterized in that for parallel adjustment or pivoting of the rocker shaft (5) relative to the fabric draw-off member (2) there is provided an electro-motor (13) connected to the rocker shaft (5).
- Fabric draw-off arrangement according to any of claims 4 to 7, characterized in that for driving the pressure rollers (3) individual stepping motors (12) are provided.
- Fabric draw-off arrangement according to claims 7 and 8, characterized in that an electro-motor (9) for pivoting in and out, a stepping motor (11) for adjusting the pressure force, an electro-motor (13) for parallel adjustment or pivoting and/or stepping motors (12) for individual drive of the pressure rollers are controllable via a machine control device of the flat knitting machine.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3638374A DE3638374C1 (en) | 1986-11-11 | 1986-11-11 | Goods take-off device on flat knitting machines |
| DE3638374 | 1986-11-11 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0268187A2 EP0268187A2 (en) | 1988-05-25 |
| EP0268187A3 EP0268187A3 (en) | 1990-12-05 |
| EP0268187B1 true EP0268187B1 (en) | 1993-11-10 |
Family
ID=6313628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP87116592A Expired - Lifetime EP0268187B1 (en) | 1986-11-11 | 1987-11-10 | Article draw-off device at a flat bed knitting machine |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US4790152A (en) |
| EP (1) | EP0268187B1 (en) |
| DE (2) | DE3638374C1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3824783A1 (en) * | 1988-07-21 | 1990-01-25 | Stoll & Co H | EXTRACTION DEVICE FOR FLAT KNITTING MACHINES |
| JPH0665780B2 (en) * | 1989-10-04 | 1994-08-24 | 株式会社島精機製作所 | Knitted fabric lowering device |
| DE4212793A1 (en) * | 1992-04-16 | 1993-10-21 | Stoll & Co H | Goods take-off device for flat knitting machines |
| JPH06173146A (en) * | 1992-10-09 | 1994-06-21 | Fukuhara Seiki Seisakusho:Kk | Driving apparatus for winding part in circular knitting machine |
| DE4242969A1 (en) * | 1992-12-18 | 1994-06-23 | Stoll & Co H | Goods take-up roller arrangement for flat knitting machines |
| AU3896197A (en) * | 1996-07-29 | 1998-02-20 | Mayer Industries, Inc. | A circular knitting machine having a takedown assembly for applying constant tension to the knitted fabric |
| DE19738013A1 (en) * | 1997-08-30 | 1999-03-04 | Stoll & Co H | Goods take-up roller arrangement for flat knitting machines |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE629840C (en) * | 1933-07-04 | 1936-05-13 | Reutlinger Strickmaschinenfabr | Goods take-off device for flat knitting machines |
| FR972602A (en) * | 1948-10-01 | 1951-02-01 | Pulling device for knitting machine | |
| US4027506A (en) * | 1975-10-14 | 1977-06-07 | Firma C. Terrot Sohne | Draw-off and take-up arrangement for circular knitting machines |
| US4236390A (en) * | 1978-11-09 | 1980-12-02 | Terrot Strickmaschinen Gmbh | Knitting machine |
| JPS58197357A (en) * | 1982-04-15 | 1983-11-17 | 株式会社島アイデア・センタ− | Knitting start apparatus of traverse knitting machine |
| DE3217395C2 (en) * | 1982-05-08 | 1985-05-23 | H. Stoll Gmbh & Co, 7410 Reutlingen | Take-off device for flat knitting machines |
| JPS58170619U (en) * | 1982-05-10 | 1983-11-14 | 大日本スクリ−ン製造株式会社 | Nitspro roller floating device for sending out roll paper sensitive material |
| DE3229031A1 (en) * | 1982-08-04 | 1984-02-09 | H. Stoll Gmbh & Co, 7410 Reutlingen | DEVICE DEVICE FOR FLAT KNITTING MACHINES |
| DE3346743A1 (en) * | 1983-01-26 | 1984-08-02 | H. Stoll Gmbh & Co, 7410 Reutlingen | DRAWING DEVICE FOR KNITTING MACHINES |
| DE3331052C2 (en) * | 1983-08-29 | 1985-09-26 | H. Stoll Gmbh & Co, 7410 Reutlingen | Goods take-off roller on flat knitting machines |
-
1986
- 1986-11-11 DE DE3638374A patent/DE3638374C1/en not_active Expired
-
1987
- 1987-11-10 EP EP87116592A patent/EP0268187B1/en not_active Expired - Lifetime
- 1987-11-10 DE DE87116592T patent/DE3788109D1/en not_active Expired - Fee Related
- 1987-11-12 US US07/119,769 patent/US4790152A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP0268187A2 (en) | 1988-05-25 |
| DE3788109D1 (en) | 1993-12-16 |
| US4790152A (en) | 1988-12-13 |
| EP0268187A3 (en) | 1990-12-05 |
| DE3638374C1 (en) | 1988-04-21 |
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