EP2976448A1 - Drafting system for a knitting machine - Google Patents

Drafting system for a knitting machine

Info

Publication number
EP2976448A1
EP2976448A1 EP14707420.7A EP14707420A EP2976448A1 EP 2976448 A1 EP2976448 A1 EP 2976448A1 EP 14707420 A EP14707420 A EP 14707420A EP 2976448 A1 EP2976448 A1 EP 2976448A1
Authority
EP
European Patent Office
Prior art keywords
base plate
rollers
drafting system
drafting
clamping device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP14707420.7A
Other languages
German (de)
French (fr)
Other versions
EP2976448B1 (en
Inventor
Wolfgang Bauer
Axel Flad
Thomas DZIADOSZ
Manuel Schwab
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sipra Patententwicklungs und Beteiligungs GmbH
Original Assignee
Sipra Patententwicklungs und Beteiligungs GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sipra Patententwicklungs und Beteiligungs GmbH filed Critical Sipra Patententwicklungs und Beteiligungs GmbH
Publication of EP2976448A1 publication Critical patent/EP2976448A1/en
Application granted granted Critical
Publication of EP2976448B1 publication Critical patent/EP2976448B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • D04B15/38—Devices for supplying, feeding, or guiding threads to needles
    • D04B15/48—Thread-feeding devices
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/26—Drafting machines or arrangements without fallers or like pinned bars in which fibres are controlled by one or more endless aprons
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/46—Loading arrangements
    • D01H5/50—Loading arrangements using springs
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B9/00—Circular knitting machines with independently-movable needles
    • D04B9/14—Circular knitting machines with independently-movable needles with provision for incorporating loose fibres, e.g. in high-pile fabrics
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/60—Arrangements maintaining drafting elements free of fibre accumulations
    • D01H5/66—Suction devices exclusively

Definitions

  • the invention relates to a drafting system for a knitting machine for
  • Output roller pair each having a pressure roller and an electric motor driven drive roller and the rollers and the
  • Electric motors are arranged on the front side of a base plate, while the motor shafts are passed through the base plate and are connected via drive means with the mounted in the base plate axes of the drive rollers.
  • Such drafting systems are already in WO 2009/026734 AI
  • the present invention is therefore based on the object
  • the object is achieved by a drafting system for a knitting machine for producing a fiber structure from a roving with about
  • Output roller pair each a pressure roller and an electric motor having controlled drive roller and the rollers and the electric motors are arranged on the front side of a base plate, while the motor shafts are passed through the base plate and are connected via drive means with the mounted in the base plate axes of the drive rollers, which is characterized in that on the back of the Base plate is provided a clamping device with which the pressure rollers of the Riemchenwalzencrues and the
  • Output roller pair can be pressed against the drive rollers.
  • the tensioning device with which the pressure rollers against the driven rollers are pressed to allow the stretching of the fiber structure, is also known in the drafting on the
  • Pressure rollers must be acted upon by the clamping device, this has a relatively large number of components which, when arranged on the front of the drafting, d. H. on the side on which the fiber strand passes through, are exposed to fiber fly and thus pollute. You need to
  • Clamping device arranged on the drafting system rear, where they can not be contaminated by fiber fly and not block the free access to the pairs of rollers and straps on the front.
  • the axes of the pressure rollers are guided with clearance through openings in the base plate and from the clamping device in the openings movable up and down. If the tensioning device is relaxed, the rollers can be manually moved within the scope of the clearance permitted by the openings
  • Rear side of the base plate are rotatably mounted in slides, wherein the slide can be acted upon by the tensioning device with a spring force.
  • the slides which may be mounted in guides, allow a precise movement of the pressure roller axes by the of
  • Clamping device generated spring force, which can be generated by each of the slider associated springs.
  • the clamping device has a bar extending over the slider, slidably arranged on the base plate bar, with which the contact pressure can be generated. By simply moving this bar can thereby press the pressure rollers against the drive rollers or relieve. The strip can be moved longitudinally to the
  • Base plate arranged and provided with cams, wherein the cams of the strip on the cooperating with the sliders springs
  • springs can preferably be used thigh springs. These can be arranged in an adjustable spring block, so that by moving the spring block, the spring generated by the springs
  • mechanical clamping device also have a pneumatic, hydraulic or electrical clamping device.
  • the tensioning device can be activated and deactivated in a manner known per se by a pivoting lever connected to the tensioning device.
  • the pivot lever can be arranged easily accessible outside of the housing of the plate.
  • the drafting system can be designed differently. Relatively often so-called 3-roll drafting systems are used, d. H. the drafting system may have, in addition to the Riemchenwalzen and the output roller pair an input roller pair, the pressure roller is also acted upon by the clamping device.
  • Outgoing pair of rollers may be arranged a suction, with the help of which fibers and dust can be sucked off before moving on
  • the invention also relates to a knitting machine, preferably a circular knitting machine, which is equipped with at least one drafting device according to the invention.
  • a knitting machine preferably a circular knitting machine
  • at least one drafting device according to the invention is equipped with at least one drafting device according to the invention.
  • 1 is a perspective view of the front of a
  • Fig. 2 is a view of the rear of the drafting system of Fig. 1;
  • FIG. 3 shows a detailed view of the rear side of the drafting system from FIG. 1 with active tensioning device
  • Fig. 4 is a view corresponding to FIG. 3 with inactive
  • Fig. 5 is an enlarged detail view of the rear of the drafting system of Fig. 1;
  • FIG. 6 is an enlarged detail view of the axle bushings through the base plate of the drafting system from FIG. 1.
  • the drafting system 10 of FIG. 1 has a base plate 11, on the front side 12, two motors 13, 14, an input roller pair 15, a Riemchenwalzencru 16 and a pair of output rollers 17 are arranged.
  • Each of the roller pairs 15, 16, 17 consists of a lower driven roller 15.1, 16.1, 17.1 and an upper one
  • the motors 13, 14 are protected from fiber fly by a cover omitted in FIG.
  • On the output roller pair 17 is also a
  • Fig. 2 shows the back 18 of the base plate 11, on which an electronic control part 19 and a mechanical part 20 of the drafting system 10th
  • the shaft 14.1 drives via a toothed belt 22 and a plurality of pinion shafts 16.3, 15.3 of the belt drive roller 16.1 and the input drive roller 15.1.
  • Bar 30 was moved in the direction of the arrow to the outside.
  • the cams 32 are thereby no longer in contact with the Schenkeifedern 27, 28, 29.
  • the sliders 33, 34, 35 are not further pressed down.
  • axles 15.4, 16.4, 17.4 of the pressure rollers 15.2, 16.2, 17.2 are respectively mounted in the slides 33, 34, 35. These axes 15.4, 16.4 and 17.4 are by
  • the tensioning device 25 If, however, the tensioning device 25 is inactive (FIG. 4), the upper pressure rollers 15.2, 16.2, 17.2 can be moved upwards by hand, as far as the play between the axles 15.4, 16.4, 17.4 and the openings 36 permits.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Knitting Machines (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

The invention relates to a drafting system (10) for a knitting machine for producing a fiber lattice from a rove having double closers guided via closer rollers (16) and an exit roller pair (17), wherein the closer rollers (16) and the exit roller pair (17) each have a pressure roller (16.2, 17.2) and an electromotively controlled drive roller (16.1, 17.1) and the rollers (16.1, 16.2, 17.1, 17.2) and the electromotors (13, 14) are arranged on the front side (12) of a base plate (11), wherein the motor shafts (13.1, 14.1) are fed through the base plate (11) and are connected to the axles (16.3, 17.3) of the drive rollers (16.1, 17.1) mounted in the base plate (11) via drive devices (21, 22), wherein there is a clamping device (25) on the rear side (18) of the base plate (11) by means of which the pressure rollers (16.2, 17.2) of the closer roller pair (16) and of the exit roller pair (17) can be pressed against the drive rollers (16.1, 17.1).

Description

Streckwerk für eine Strickmaschine  Drafting system for a knitting machine
B e s c h r e i b u n g : Description :
Die Erfindung betrifft ein Streckwerk für eine Strickmaschine zur The invention relates to a drafting system for a knitting machine for
Herstellung eines Faserverbandes aus einem Vorgarn mit über Production of a fiber structure from a roving with over
Riemchenwalzen geführten Doppelriemchen und einem Riemchenwalzen led Doppelriemchen and a
Ausgangswalzenpaar, wobei die Riemchenwalzen und das Output roller pair, wherein the Riemchenwalzen and the
Ausgangswalzenpaar jeweils eine Druckwalze und eine elektromotorisch gesteuerte Antriebswalze aufweisen und die Walzen und die Output roller pair each having a pressure roller and an electric motor driven drive roller and the rollers and the
Elektromotoren auf der Vorderseite einer Grundplatte angeordnet sind, während die Motorwellen durch die Grundplatte hindurchgeführt sind und über Antriebseinrichtungen mit den in der Grundplatte gelagerten Achsen der Antriebswalzen verbunden sind. Derartige Streckwerke sind in der WO 2009/026734 AI bereits Electric motors are arranged on the front side of a base plate, while the motor shafts are passed through the base plate and are connected via drive means with the mounted in the base plate axes of the drive rollers. Such drafting systems are already in WO 2009/026734 AI
beschrieben. Sie dienen dazu, aus einem Vorgarn einen verzogenen Faserverband herzustellen und diesen den Nadeln der Strickmaschine direkt zuzuführen. Die aus dem Faserverband, der im Wesentlichen parallel ausgerichtete Fasern aufweist, hergestellten Gestrickstücke fühlen sich deutlich weicher an als aus einem fertig versponnenen Garn described. They serve to produce a distorted fiber structure from a roving and to supply it directly to the needles of the knitting machine. The knitted fabrics produced from the fiber structure, which has essentially parallel aligned fibers, feel significantly softer than from a finished spun yarn
hergestellte Gestrickstücke. Werden Strickmaschinen mit solchen manufactured knit pieces. Be knitting machines with such
Streckwerken ausgerüstet, so kann auf den Prozess des Garnspinnens verzichtet werden. Die Maschenware wird direkt aus dem Vorgarn gefertigt. Drafting equipped, so can be dispensed with the process of yarn spinning. The knitwear is made directly from the roving.
Bei den bekannten Streckwerken befinden sich alle Teile, bis auf den Zahnriemenantrieb für die Unterwalzen, auf der Vorderseite der In the known drafting systems are all parts, except for the belt drive for the lower rollers, on the front of the
Grundplatte des Streckwerks. Dadurch sind diese Streckwerkteile jedoch auch dem unvermeidlich beim Durchführen des Faserverbandes durch das Streckwerk auftretenden Faserflug ausgesetzt und verschmutzen daher rasch. Durch die Vielzahl von auf der Vorderseite der Grundplatte angebrachten Bauteilen gestaltet sich das Reinigen des Streckwerks jedoch sehr mühsam. Base plate of the drafting system. As a result, however, these drafting parts are also exposed to the unavoidable occurring during the passage of the fiber structure by the drafting fiber fly and therefore pollute quickly. Due to the large number of mounted on the front of the base plate components, however, the cleaning of the drafting designed very tedious.
Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, ein The present invention is therefore based on the object
Streckwerk für eine Strickmaschine vorzuschlagen, bei dem eine geringere Belastung der Bauteile durch Faserflug auftritt und das leichter zu reinigen ist. To propose a drafting system for a knitting machine, in which a lower load on the components by fiber fly occurs and is easier to clean.
Die Aufgabe wird gelöst durch ein Streckwerk für eine Strickmaschine zur Herstellung eines Faserverbandes aus einem Vorgarn mit über The object is achieved by a drafting system for a knitting machine for producing a fiber structure from a roving with about
Riemchenwalzen geführten Doppelriemchen und einem Riemchenwalzen led Doppelriemchen and a
Ausgangswalzenpaar, wobei die Riemchenwalzen und das Output roller pair, wherein the Riemchenwalzen and the
Ausgangswalzenpaar jeweils eine Druckwalze und eine elektromotorisch gesteuerte Antriebswalze aufweisen und die Walzen und die Elektromotoren auf der Vorderseite einer Grundplatte angeordnet sind, während die Motorwellen durch die Grundplatte hindurchgeführt sind und über Antriebseinrichtungen mit den in der Grundplatte gelagerten Achsen der Antriebswalzen verbunden sind, das dadurch gekennzeichnet ist, dass auf der Rückseite der Grundplatte eine Spanneinrichtung vorgesehen ist, mit der die Druckwalzen des Riemchenwalzenpaares und des Output roller pair each a pressure roller and an electric motor having controlled drive roller and the rollers and the electric motors are arranged on the front side of a base plate, while the motor shafts are passed through the base plate and are connected via drive means with the mounted in the base plate axes of the drive rollers, which is characterized in that on the back of the Base plate is provided a clamping device with which the pressure rollers of the Riemchenwalzenpaares and the
Ausgangswalzenpaares gegen die Antriebswalzen anpressbar sind. Output roller pair can be pressed against the drive rollers.
Die Spannvorrichtung, mit der die Druckwalzen gegen die angetriebenen Walzen anpressbar sind, um das Verstrecken des Faserverbandes zu ermöglichen, ist bei den bekannten Streckwerken ebenfalls auf der The tensioning device, with which the pressure rollers against the driven rollers are pressed to allow the stretching of the fiber structure, is also known in the drafting on the
Vorderseite oberhalb der Druck walzen angeordnet. Da jede der Front side above the pressure rollers arranged. As each of the
Druckwalzen von der Spanneinrichtung beaufschlagt werden muss, weist diese relativ viele Bauteile auf, die bei Anordnung auf der Vorderseite des Streckwerks, d. h. auf der Seite, auf der der Faserverband durchläuft, Faserflug ausgesetzt sind und damit verschmutzen. Sie müssen Pressure rollers must be acted upon by the clamping device, this has a relatively large number of components which, when arranged on the front of the drafting, d. H. on the side on which the fiber strand passes through, are exposed to fiber fly and thus pollute. You need to
regelmäßig gereinigt werden und erschweren außerdem die Reinigung der Walzenpaare und Riemchen, da sie einen freien Zugang zu diesen von der Oberseite her behindern. Be cleaned regularly and also complicate the cleaning of the roller pairs and straps, as they impede free access to these from the top.
Beim erfindungsgemäßen Streckwerk sind alle Bauteile der When drafting the invention all components of the
Spanneinrichtung auf der Streckwerkrückseite angeordnet, wo sie nicht durch Faserflug verschmutzen können und den freien Zugang zu den Walzenpaaren und Riemchen auf der Vorderseite nicht blockieren. Clamping device arranged on the drafting system rear, where they can not be contaminated by fiber fly and not block the free access to the pairs of rollers and straps on the front.
Dadurch ist das erfindungsgemäße Streckwerk deutlich As a result, the drafting system according to the invention is clear
wartungsfreundlicher als die bekannten Streckwerke. Bei einer bevorzugten Ausgestaltung des Streckwerks sind die Achsen der Druckwalzen mit Spiel durch Öffnungen in der Grundplatte geführt und von der Spanneinrichtung in den Öffnungen auf und ab bewegbar. Wird die Spanneinrichtung entspannt, können die Walzen von Hand im Rahmen des durch die Öffnungen erlaubten Spiels bewegt werden, um easier to maintain than the known drafting systems. In a preferred embodiment of the drafting system, the axes of the pressure rollers are guided with clearance through openings in the base plate and from the clamping device in the openings movable up and down. If the tensioning device is relaxed, the rollers can be manually moved within the scope of the clearance permitted by the openings
beispielsweise ein Riemchen oder eine der Walzen austauschen und/oder reinigen zu können. For example, to replace a strap or one of the rollers and / or to be able to clean.
Dabei ist es von Vorteil, wenn die Achsen der Druckwalzen auf der It is advantageous if the axes of the pressure rollers on the
Rückseite der Grundplatte in Schiebern drehbar gelagert sind, wobei die Schieber von der Spanneinrichtung mit einer Federkraft beaufschlagbar sind. Die Schieber, die in Führungen gelagert sein können, erlauben ein präzises Bewegen der Druckwalzenachsen durch die von der Rear side of the base plate are rotatably mounted in slides, wherein the slide can be acted upon by the tensioning device with a spring force. The slides, which may be mounted in guides, allow a precise movement of the pressure roller axes by the of
Spanneinrichtung erzeugte Federkraft, wobei diese durch jedem der Schieber zugeordnete Federn erzeugt werden kann. Clamping device generated spring force, which can be generated by each of the slider associated springs.
Bei dieser Ausgestaltung der Spanneinrichtung ist es weiter vorteilhaft, wenn die Spanneinrichtung eine sich über die Schieber erstreckende, verschiebbar an der Grundplatte angeordnete Leiste aufweist, mit der die Anpresskraft erzeugbar ist. Durch einfaches Verschieben dieser Leiste lassen sich dadurch die Druckwalzen gegen die Antriebswalzen anpressen oder entlasten. Die Leiste kann dazu längs verschiebbar an der In this embodiment of the clamping device, it is also advantageous if the clamping device has a bar extending over the slider, slidably arranged on the base plate bar, with which the contact pressure can be generated. By simply moving this bar can thereby press the pressure rollers against the drive rollers or relieve. The strip can be moved longitudinally to the
Grundplatte angeordnet und mit Nocken versehen sein, wobei die Nocken der Leiste auf die mit den Schiebern zusammenwirkende Federn Base plate arranged and provided with cams, wherein the cams of the strip on the cooperating with the sliders springs
einwirken. Als Federn lassen sich vorzugsweise Schenkelfedem einsetzen. Diese können in einem verstellbaren Federblock angeordnet sein, sodass durch Verschieben des Federblocks die durch die Federn erzeugte act. As springs can preferably be used thigh springs. These can be arranged in an adjustable spring block, so that by moving the spring block, the spring generated by the springs
Federkraft eingestellt werden kann. Das erfindungsgemäße Streckwerk kann jedoch anstelle einer Spring force can be adjusted. However, the drafting system according to the invention can instead of a
mechanischen Spanneinrichtung auch eine pneumatische, hydraulische oder elektrische Spanneinrichtung aufweisen. mechanical clamping device also have a pneumatic, hydraulic or electrical clamping device.
Die Spanneinrichtung kann dabei in an sich bekannter Weise durch einen mit der Spanneinrichtung verbundenen Schwenkhebel aktiviert und deaktiviert werden. Der Schwenkhebel lässt sich dabei leicht zugänglich außerhalb des Gehäuses der Platte anordnen. The tensioning device can be activated and deactivated in a manner known per se by a pivoting lever connected to the tensioning device. The pivot lever can be arranged easily accessible outside of the housing of the plate.
Je nach zu verarbeitendem Vorgarn kann das Streckwerk unterschiedlich ausgestaltet sein. Relativ häufig werden sogenannte 3-Walzen- Streckwerke eingesetzt, d. h. das Streckwerk kann zusätzlich zu den Riemchenwalzen und dem Ausgangswalzenpaar ein Eingangswalzenpaar aufweisen, dessen Druckwalze ebenfalls von der Spanneinrichtung beaufschlagbar ist. Depending on the roving to be processed, the drafting system can be designed differently. Relatively often so-called 3-roll drafting systems are used, d. H. the drafting system may have, in addition to the Riemchenwalzen and the output roller pair an input roller pair, the pressure roller is also acted upon by the clamping device.
Als weitere Maßnahme zur Reduzierung der Verschmutzung des As a further measure to reduce pollution of the
Streckwerks durch Faserflug können die Motoren von einer abnehmbaren Abdeckung gegen Faserflug geschützt sein. Außerdem kann am Drafting by fiber fly, the motors can be protected by a removable cover against fiber fly. In addition, am
Ausgangswalzenpaar eine Absaugung angeordnet sein, mit deren Hilfe Fasern und Staub abgesaugt werden können, bevor sie sich auf Outgoing pair of rollers may be arranged a suction, with the help of which fibers and dust can be sucked off before moving on
Streckwerkteilen absetzen. Set down drafting parts.
Auch wenn die Streckwerkrückseite nicht direkt mit dem Faserverband in Berührung kommt, ist es weiter zweckmäßig auch die Rückseite der Grundplatte durch einen abnehmbaren Gehäusedeckel zu schützen. Even if the drafting rear side does not come into direct contact with the fiber structure, it is also expedient to protect the rear side of the base plate by a removable housing cover.
Die Erfindung betrifft außerdem eine Strickmaschine, vorzugsweise eine Rundstrickmaschine, die mit mindestens einem erfindungsgemäßen Streckwerk ausgerüstet ist. Nachfolgend wird ein bevorzugtes Ausführungsbeispiel eines erfindungsgemäßen Streckwerks mit Bezug auf die Zeichnung näher beschrieben. The invention also relates to a knitting machine, preferably a circular knitting machine, which is equipped with at least one drafting device according to the invention. Hereinafter, a preferred embodiment of a drafting system according to the invention will be described in more detail with reference to the drawing.
Im Einzelnen zeigen : In detail show:
Fig. 1 eine perspektivische Ansicht auf die Vorderseite eines 1 is a perspective view of the front of a
Streckwerks;  Drafting system;
Fig. 2 eine Ansicht der Rückseite des Streckwerks aus Fig. 1; Fig. 2 is a view of the rear of the drafting system of Fig. 1;
Fig. 3 eine Detailansicht der Rückseite des Streckwerks aus Fig. 1 mit aktiver Spannvorrichtung; FIG. 3 shows a detailed view of the rear side of the drafting system from FIG. 1 with active tensioning device; FIG.
Fig. 4 eine der Fig. 3 entsprechende Ansicht mit inaktiver Fig. 4 is a view corresponding to FIG. 3 with inactive
Spannvorrichtung;  Chuck;
Fig. 5 eine vergrößerte Detailansicht der Rückseite des Streckwerks aus Fig. 1; Fig. 5 is an enlarged detail view of the rear of the drafting system of Fig. 1;
Fig. 6 eine vergrößerte Detailansicht der Achsdurchführungen durch die Grundplatte des Streckwerks aus Fig. 1. 6 is an enlarged detail view of the axle bushings through the base plate of the drafting system from FIG. 1.
Das Streckwerk 10 aus Fig. 1 weist eine Grundplatte 11 auf, auf dessen Vorderseite 12 zwei Motoren 13, 14, ein Eingangswalzenpaar 15, ein Riemchenwalzenpaar 16 sowie ein Ausgangswalzenpaar 17 angeordnet sind. Jedes der Walzenpaare 15, 16, 17 besteht aus einer unteren angetriebenen Walze 15.1, 16.1, 17.1 und einer oberen The drafting system 10 of FIG. 1 has a base plate 11, on the front side 12, two motors 13, 14, an input roller pair 15, a Riemchenwalzenpaar 16 and a pair of output rollers 17 are arranged. Each of the roller pairs 15, 16, 17 consists of a lower driven roller 15.1, 16.1, 17.1 and an upper one
Druckwalze 15.2, 16.2, 17.2. Der hier nicht näher dargestellte, durch das Streckwerk 10 zu verziehende Faserverband wird jeweils zwischen den oberen und unteren Antriebswaizen 15.2, 16.2, 17.2 und 15.1, 16.1, 17.1 hindurchgeführt. Durch die unterschiedlichen Geschwindigkeiten der Walzenpaare kommt es zu der gewünschten Streckung des Pressure roller 15.2, 16.2, 17.2. The not shown here, to be forgiven by the drafting 10 fiber structure is in each case between the the upper and lower Antriebswaizen 15.2, 16.2, 17.2 and 15.1, 16.1, 17.1 passed. Due to the different speeds of the roller pairs, it comes to the desired extension of the
Faserverbandes. Fiber structure.
Die Motoren 13, 14 sind von einer in Fig. l weggelassenen Abdeckung vor Faserflug geschützt. Am Ausgangswalzenpaar 17 ist außerdem eine The motors 13, 14 are protected from fiber fly by a cover omitted in FIG. On the output roller pair 17 is also a
Absaugung vorgesehen, die aus Übersichtlichkeitsgründen aber ebenfalls in der Figur weggelassen wurde. Extraction provided, which was omitted for clarity but also in the figure.
Fig. 2 zeigt die Rückseite 18 der Grundplatte 11, auf der ein elektronischer Steuerteil 19 sowie ein mechanischer Teil 20 des Streckwerks 10 Fig. 2 shows the back 18 of the base plate 11, on which an electronic control part 19 and a mechanical part 20 of the drafting system 10th
angeordnet sind. Der genauere Aufbau des mechanischen Teils 20 ist in den Fig. 3 bis 6 dargestellt. Sowohl der elektronische Teil 19 als auch der mechanische Teil 20 sind durch einen Gehäusedeckel nach außen are arranged. The more detailed structure of the mechanical part 20 is shown in FIGS. 3 to 6. Both the electronic part 19 and the mechanical part 20 are outwardly through a housing cover
abgedeckt, die hier jedoch nicht gezeigt sind, um den Blick auf die covered, but not shown here to look at the
Bauteile des Streckwerks 10 freizugeben. Release components of the drafting system 10.
Aus Fig. 3 ist zu erkennen, dass Wellen 13.1, 14. 1 der Motoren 13, 14 durch die Grundplatte 11 hindurch auf die Rückseite 18 geführt sind. Dort wird über die Welle 13.1 mit Hilfe eines Zahnriemens 21 die ebenfalls durch die Grundplatte 11 hindurch geführte Achse 17.3 der It can be seen from FIG. 3 that shafts 13. 1, 14. 1 of the motors 13, 14 are guided through the base plate 11 onto the rear side 18. There, via the shaft 13.1 by means of a toothed belt 21 which also guided through the base plate 11 axis 17.3 of
Ausgangsantriebswalze 17.1 angetrieben. Die Welle 14.1 treibt dagegen über einen Zahnriemen 22 und mehrere Ritzel Achsen 16.3, 15.3 der Riemchenantriebswalze 16.1 und der Eingangsantriebswalze 15.1 an. Output drive roller 17.1 driven. In contrast, the shaft 14.1 drives via a toothed belt 22 and a plurality of pinion shafts 16.3, 15.3 of the belt drive roller 16.1 and the input drive roller 15.1.
Weiter ist auf der Rückseite 18 der Grundplatte 11 eine Next is on the back 18 of the base plate 11 a
Spanneinrichtung 25 für die oberen Druckwalzen 15.2, 16.2, 17.2 angeordnet. Sie weist einen Federblock 26 auf, in dem drei Clamping device 25 for the upper pressure rollers 15.2, 16.2, 17.2 arranged. It has a spring block 26 in which three
Schenkelfedern 27, 28, 29 gelagert sind. Außerdem ist im Federblock 26 eine Leiste 30, die mit einem Spannhebel 31 verbunden ist, verschiebbar gelagert. Leg springs 27, 28, 29 are stored. In addition, in the spring block 26th a bar 30 which is connected to a tensioning lever 31, slidably mounted.
In Fig. 3 wurde die Leiste 30 in Richtung des Pfeils durch Schließen des Spannhebels 31 nach innen verschoben. Dadurch drücken an der Leiste vorgesehenen Nocken 32 (Fig. 4) auf die Schenkelfedern 27, 28, 29, deren zweiter Schenkel wiederum jeweils einen Schieber 33, 34, 35 (Fig. 4) beaufschlagt. Die Schieber 33, 34, 35 werden dadurch nach unten gedrückt. In Fig. 3, the bar 30 has been moved in the direction of the arrow by closing the clamping lever 31 inwardly. As a result, cams 32 (FIG. 4) provided on the strip press on the leg springs 27, 28, 29, whose second legs in turn each act on a slide 33, 34, 35 (FIG. 4). The slides 33, 34, 35 are thereby pressed down.
In Fig. 4 wurde dagegen der Spannhebel 31 geöffnet, wodurch die In Fig. 4, however, the clamping lever 31 has been opened, whereby the
Leiste 30 in Richtung des Pfeils nach außen bewegt wurde. Die Nocken 32 sind dadurch nicht mehr in Kontakt mit den Schenkeifedern 27, 28, 29. Die Schieber 33, 34, 35 werden nicht weiter nach unten gepresst. Bar 30 was moved in the direction of the arrow to the outside. The cams 32 are thereby no longer in contact with the Schenkeifedern 27, 28, 29. The sliders 33, 34, 35 are not further pressed down.
Wie Fig. 5 und Fig. 6 verdeutlichen, sind in den Schiebern 33, 34, 35 jeweils Achsen 15.4, 16.4, 17.4 der Druckwalzen 15.2, 16.2, 17.2 gelagert. Diese Achsen 15.4, 16.4 und 17.4 sind dabei durch As FIG. 5 and FIG. 6 illustrate, axles 15.4, 16.4, 17.4 of the pressure rollers 15.2, 16.2, 17.2 are respectively mounted in the slides 33, 34, 35. These axes 15.4, 16.4 and 17.4 are by
Öffnungen 36 in der Grundplatte 19 mit Spiel hindurchgeführt. Werden die Schieber 33, 34, 35 durch die Spanneinrichtung 25 nach unten gedrückt, so bewegen sich auch die oberen Druckwalzen 15.2, 16.2, 17.2 nach unten und erzeugen somit den erforderlichen Anpressdruck des Openings 36 in the base plate 19 passed with play. If the slides 33, 34, 35 pressed by the tensioning device 25 down, then move the upper pressure rollers 15.2, 16.2, 17.2 down and thus generate the required contact pressure of
Faserverbandes gegen die Antriebswalzen 15.1, 16.1, 17.1. Fiber structure against the drive rollers 15.1, 16.1, 17.1.
Ist die Spanneinrichtung 25 dagegen inaktiv (Fig. 4), so können die oberen Druckwalzen 15.2, 16.2, 17.2 von Hand nach oben bewegt werden, soweit es das Spiel zwischen den Achsen 15.4, 16.4, 17.4 und den Öffnungen 36 erlaubt. If, however, the tensioning device 25 is inactive (FIG. 4), the upper pressure rollers 15.2, 16.2, 17.2 can be moved upwards by hand, as far as the play between the axles 15.4, 16.4, 17.4 and the openings 36 permits.

Claims

P a t e n t a n s p r ü c h e : Patent claim:
1. Streckwerk für eine Strickmaschine zur Herstellung eines 1. drafting system for a knitting machine for producing a
Faserverbandes aus einem Vorgarn mit über Riemchenwalzen (16) geführten Doppelriemchen und einem Ausgangswalzenpaar (17), wobei die Riemchenwalzen (16) und das Ausgangswalzenpaar (17) jeweils eine Druckwalze (16.2, 17.2) und eine elektromotorisch gesteuerte Antriebswalze (16.1, 17.1) aufweisen und die  Fiber assembly of a roving with over Riemchenwalzen (16) guided Doppelriemchen and a pair of output rollers (17), the Riemchenwalzen (16) and the pair of output rollers (17) each have a pressure roller (16.2, 17.2) and an electric motor driven drive roller (16.1, 17.1) and the
Walzen (16.1, 16.2, 17.1, 17.2) und die Elektromotoren (13, 14) auf der Vorderseite (12) einer Grundplatte (11) angeordnet sind, während die Motorwellen (13.1, 14.1) durch die Grundplatte (11) hindurchgeführt sind und über Antriebseinrichtungen (21, 22) mit den in der Grundplatte (11) gelagerten Achsen (16.3, 17.3) der Antriebswalzen ( 16.1, 17.1) verbunden sind, dadurch  Rollers (16.1, 16.2, 17.1, 17.2) and the electric motors (13, 14) on the front side (12) of a base plate (11) are arranged, while the motor shafts (13.1, 14.1) are passed through the base plate (11) and over Drive means (21, 22) with the in the base plate (11) mounted axes (16.3, 17.3) of the drive rollers (16.1, 17.1) are connected, characterized
gekennzeichnet, dass auf der Rückseite (18) der Grundplatte (11) eine Spanneinrichtung (25) vorgesehen ist, mit der die Druckwalzen (16.2, 17.2) des Riemchenwalzenpaares ( 16) und des  characterized in that a tensioning device (25) is provided on the rear side (18) of the base plate (11), with which the pressure rollers (16.2, 17.2) of the pair of apron rollers (16) and of the
Ausgangswalzenpaares (17) gegen die Antriebswalzen ( 16.1, 17.1) anpressbar sind.  Output roller pair (17) against the drive rollers (16.1, 17.1) can be pressed.
2. Streckwerk nach Anspruch 1, dadurch gekennzeichnet, dass die 2. drafting arrangement according to claim 1, characterized in that the
Achsen (16.4, 17.4) der Druckwalzen ( 16.2, 17.2) mit Spiel durch Öffnungen (36) in der Grundplatte ( 11) geführt und von der  Axes (16.4, 17.4) of the pressure rollers (16.2, 17.2) with play through openings (36) in the base plate (11) and guided by the
Spanneinrichtung (25) in den Öffnungen (36) auf und ab bewegbar sind.  Clamping device (25) in the openings (36) are movable up and down.
3. Streckwerk nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Achsen (16.4, 17.4) der Druckwalzen (16.2, 17.2) auf der Rückseite (18) der Grundplatte (11) in Schiebern (33, 34, 35) drehbar gelagert sind, wobei die Schieber (33, 34, 35) von der Spanneinrichtung (25) mit einer Federkraft beaufschlagbar sind. 3. drafting system according to claim 1 or 2, characterized in that the axes (16.4, 17.4) of the pressure rollers (16.2, 17.2) on the Rear side (18) of the base plate (11) in slides (33, 34, 35) are rotatably mounted, wherein the slide (33, 34, 35) of the clamping device (25) can be acted upon by a spring force.
4. Streckwerk nach Anspruch 3, dadurch gekennzeichnet, dass jedem Schieber (33, 34, 35) eine Feder (27, 28, 29) zugeordnet ist. 4. drafting system according to claim 3, characterized in that each slide (33, 34, 35) is associated with a spring (27, 28, 29).
5. Streckwerk nach Anspruch 3 oder 4, dadurch gekennzeichnet, dass die Spanneinrichtung (25) eine sich über die Schieber (33, 34, 35) erstreckende, verschiebbar an der Grundplatte (11) angeordnete Leiste (30) aufweist, mit der die Anpresskraft erzeugbar ist. 5. Drafting system according to claim 3 or 4, characterized in that the clamping device (25) extending over the slide (33, 34, 35) extending, slidably on the base plate (11) arranged strip (30), with which the contact pressure can be generated.
6. Streckwerk nach Anspruch 5, dadurch gekennzeichnet, dass die 6. drafting system according to claim 5, characterized in that the
Leiste (30) längs verschiebbar an der Grundplatte (11) angeordnet und mit Nocken (32) versehen ist, wobei die Nocken (32) der Leiste (30) auf die mit den Schiebern (33, 34, 35) zusammenwirkende Federn (27, 28, 29) einwirken.  Strip (30) arranged longitudinally displaceable on the base plate (11) and provided with cams (32), wherein the cams (32) of the strip (30) on the with the slides (33, 34, 35) cooperating springs (27, 28, 29) act.
7. Streckwerk nach einem der Ansprüche 3 bis 6, dadurch 7. drafting arrangement according to one of claims 3 to 6, characterized
gekennzeichnet, dass die Federn (27, 28, 29) Schenkelfedern sind.  characterized in that the springs (27, 28, 29) are leg springs.
8. Streckwerk nach einem der Ansprüche 3 bis 7, dadurch 8. drafting system according to one of claims 3 to 7, characterized
gekennzeichnet, dass die Federn (27, 28, 29) in einem verstellbaren Federblock (26) angeordnet sind.  in that the springs (27, 28, 29) are arranged in an adjustable spring block (26).
9. Streckwerk nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Spanneinrichtung (25) von einem manuell betätigbaren Spannhebel (31) aktivierbar ist. 9. drafting arrangement according to one of the preceding claims, characterized in that the clamping device (25) of a manually operable clamping lever (31) can be activated.
10. Streckwerk nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass an der Grundplatte (11) außerdem ein 10. drafting system according to one of the preceding claims, characterized in that on the base plate (11) also has a
Eingangsdruckwalzenpaar (15) angeordnet ist, dessen Druckwalze (15.2) ebenfalls von der Spanneinrichtung (25) beaufschlagbar ist.  Input pressure roller pair (15) is arranged, the pressure roller (15.2) is also acted upon by the clamping device (25).
11. Streckwerk nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Motoren (13, 14) von einer abnehmbaren Abdeckung gegen Faserflug geschützt sind. 11. Drawframe according to one of the preceding claims, characterized in that the motors (13, 14) are protected by a removable cover against fiber fly.
12. Streckwerk nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass am Ausgangswalzenpaar (17) eine Absaugung angeordnet ist. 12. Drafting system according to one of the preceding claims, characterized in that on the output roller pair (17) an extraction is arranged.
13. Streckwerk nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Rückseite (18) der Grundplatte (11) durch einen abnehmbaren Gehäusedeckel vor Faserflug geschützt ist. 13. Drawframe according to one of the preceding claims, characterized in that the rear side (18) of the base plate (11) is protected by a removable housing cover from fluff.
14. Strickmaschine mit mindestens einem Streckwerk nach einem der Ansprüche 1 bis 13. 14. Knitting machine with at least one drafting arrangement according to one of claims 1 to 13.
EP14707420.7A 2013-03-20 2014-03-03 Drafting system for a knitting machine Not-in-force EP2976448B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013102827.6A DE102013102827A1 (en) 2013-03-20 2013-03-20 Drafting system for a knitting machine
PCT/EP2014/054063 WO2014146891A1 (en) 2013-03-20 2014-03-03 Drafting system for a knitting machine

Publications (2)

Publication Number Publication Date
EP2976448A1 true EP2976448A1 (en) 2016-01-27
EP2976448B1 EP2976448B1 (en) 2016-12-28

Family

ID=50190469

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14707420.7A Not-in-force EP2976448B1 (en) 2013-03-20 2014-03-03 Drafting system for a knitting machine

Country Status (8)

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US (1) US20160017525A1 (en)
EP (1) EP2976448B1 (en)
JP (1) JP6341989B2 (en)
CN (1) CN105051274A (en)
BR (1) BR112015023975A2 (en)
DE (1) DE102013102827A1 (en)
TW (1) TWI608136B (en)
WO (1) WO2014146891A1 (en)

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JP2018204121A (en) * 2017-05-30 2018-12-27 村田機械株式会社 Roller unit, draft machine and spinning machine
CN111235749B (en) * 2020-01-13 2021-06-29 苏州特点电子科技有限公司 Roller control method of full-automatic computerized flat knitting machine

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Also Published As

Publication number Publication date
EP2976448B1 (en) 2016-12-28
JP6341989B2 (en) 2018-06-13
TWI608136B (en) 2017-12-11
WO2014146891A1 (en) 2014-09-25
JP2016517486A (en) 2016-06-16
US20160017525A1 (en) 2016-01-21
BR112015023975A2 (en) 2017-07-18
CN105051274A (en) 2015-11-11
TW201508106A (en) 2015-03-01
DE102013102827A1 (en) 2014-09-25

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