EP2407284A1 - Converter cutting device - Google Patents

Converter cutting device Download PDF

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Publication number
EP2407284A1
EP2407284A1 EP11004921A EP11004921A EP2407284A1 EP 2407284 A1 EP2407284 A1 EP 2407284A1 EP 11004921 A EP11004921 A EP 11004921A EP 11004921 A EP11004921 A EP 11004921A EP 2407284 A1 EP2407284 A1 EP 2407284A1
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EP
European Patent Office
Prior art keywords
unit
cutting
converter
cutting device
centrifugal force
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
EP11004921A
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German (de)
French (fr)
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EP2407284B1 (en
Inventor
Richard Brüssel
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Schmidt und Heinzmann GmbH and Co KG
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Schmidt und Heinzmann GmbH and Co KG
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Publication of EP2407284A1 publication Critical patent/EP2407284A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/0006—Cutting members therefor
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G1/00—Severing continuous filaments or long fibres, e.g. stapling
    • D01G1/02—Severing continuous filaments or long fibres, e.g. stapling to form staple fibres not delivered in strand form
    • D01G1/04—Severing continuous filaments or long fibres, e.g. stapling to form staple fibres not delivered in strand form by cutting
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G1/00—Severing continuous filaments or long fibres, e.g. stapling
    • D01G1/06—Converting tows to slivers or yarns, e.g. in direct spinning
    • D01G1/10—Converting tows to slivers or yarns, e.g. in direct spinning by cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/25—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member
    • B26D1/34—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut
    • B26D1/38—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and coacting with a fixed blade or other fixed member
    • B26D1/385—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and coacting with a fixed blade or other fixed member for thin material, e.g. for sheets, strips or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting

Definitions

  • the invention relates to a converter cutting device for use in a converter for converting one or more fibers, in particular continuous fibers, into staple fibers.
  • a converter cutting device which comprises a cutting unit provided for rotation and at least one compensating weight unit which is provided at least partially for compensating a centrifugal force acting on the cutting unit during operation.
  • the invention is based on a converter cutting device with at least one cutting unit provided for rotation and with at least one compensating weight unit which is provided at least partially for compensating a centrifugal force acting on the cutting unit during operation. It is proposed that the converter cutting device comprises at least one centrifugal force adjusting unit.
  • a "compensating weight unit” should be understood to mean, in particular, a unit that is specifically intended and / or designed for compensation, wherein “compensation” is to be understood in particular as meaning that a centrifugal force acting on the compensating weight unit at least partially acts on the cutting unit Centrifugal force counteracts.
  • a “cutting unit” is to be understood in particular a unit which consists of a cutting means and / or a cutting means and a cutting holder. Furthermore, “intended” should be understood to mean in particular specially equipped and / or designed. By means of a corresponding adjustment unit, a particularly advantageous dynamic unbalance compensation can be realized.
  • centrifugal forces and / or imbalances can be compensated advantageous and the cutting unit can be advantageously secured or held, in particular if the balance weight unit is provided to compensate for at least a majority of the centrifugal force acting on the cutting unit, ie that In operation, a centrifugal force acting on the balance weight unit, which is at least 50% of the centrifugal force acting on the cutting unit and this is opposite.
  • the centrifugal force adjusting unit is provided to set a centrifugal force which acts either in the direction of centrifugal force of the cutting unit and / or in the direction of centrifugal force of the balancing weight unit, wherein the setting unit of one to the cutting unit and / or balance weight unit may be formed separately unit or at least partially with one of the units may be formed integrally at least partially.
  • the centrifugal force adjusting unit is advantageously formed by a weight setting unit, by means of which a weight can be adjusted, and / or by a unit, by means of which a position of a weight for adjusting a centrifugal force is variable.
  • the setting unit is formed at least partially in one piece with a fastening unit, additional components, installation space, installation effort and costs can be saved.
  • the cutting unit has at least one elongated hole, an advantageous adjustment can also be achieved, and in particular a length compensation can be easily realized, in particular in the case of a cutting edge renewal.
  • the compensating weight unit is coupled via third components or advantageously directly to a component of the cutting unit, whereby a load of third components can be avoided, at least substantially advantageously.
  • the balance weight unit can be formed from various materials that appear appropriate to the person skilled in the art be, in particular with different materials with different specific densities specifically different balancing weights and volumes of the balancing weight unit can be achieved and thus an advantageous dynamic unbalance compensation can be achieved.
  • the balance weight unit is at least partially formed from a material corresponding to the cutting unit. If the compensating weight unit forms a component of the cutting unit or if the compensating weight unit is formed at least partially integrally with the cutting unit, for example by forming a cutting attachment means or cutting means acting directly on a cutting means, additional components, installation space and assembly costs can be reduced.
  • the compensating weight unit can preferably also form a second cutting edge next to a first cutting edge of a first cutting means. In a corresponding case, clearance angles are preferably introduced directly into the cutting means, ie in particular formed and / or ground.
  • the converter cutting device has a coupling which is intended to couple the cutting unit and the balance weight unit.
  • the clutch may be formed by a friction clutch and / or particularly advantageous at least partially by a form-locking coupling.
  • a "form-locking coupling” should in particular be understood to mean a coupling by means of which at least one essential component, i. at least 10%, preferably at least 30% and particularly advantageously at least 50%, of the centrifugal force can be absorbed via a positive connection of the coupling and is received in particular during operation.
  • at least one essential component i. at least 10%, preferably at least 30% and particularly advantageously at least 50%
  • the cutting unit for cutting edge renewal i. especially for regrinding and / or separating, is provided, which costs can be saved.
  • the cutting unit can be formed from various materials that appear appropriate to the person skilled in the art, such as, for example, a hard metal, a ceramic material, etc.
  • the cutting unit is particularly advantageously formed at least partially from a polycrystalline diamond by means of which advantageous cutting properties and long service lives can be achieved ,
  • a converter for converting one or more fibers, in particular continuous fibers into staple fibers with at least one rotationally drivable cutting bearing unit and with a converter cutting device according to the invention is proposed.
  • the converter has at least one second cutting unit that can be driven in a rotating manner, it is possible to achieve lower speeds and / or a higher throughput compared to a converter with only one cutting unit.
  • the converter has at least one fixed cutting unit forming a counter-cutting edge, whereby particularly advantageous cutting properties can be achieved.
  • the converter further preferably has at least one and advantageously a plurality of nozzle units, which are provided so that in each case at least one fiber strand and a conveying medium for the alignment of the fiber strand are passed.
  • the converter has a compressed air unit which is provided for generating a compressed air medium flow through the nozzle unit.
  • FIG. 1 shows a section of a converter for converting several continuous yarns into staple fibers with a plurality of rotationally driven, formed by shaft cutting bearing units 22a, which serve for the storage of converter cutting devices, namely, in each case one end face of the shafts, a receiving area for receiving the converter cutting devices is arranged.
  • the cutting bearing units 22a and the converter cutting devices are designed accordingly, so that in the following the description can be limited to a single converter cutting device and a single cutting bearing unit 22a ( FIG. 2 ).
  • the converter cutting device comprises a cutting unit 10a provided for rotation and a balance weight unit 12a provided for compensating a centrifugal force 14a acting on the cutting unit 10a during operation.
  • the cutting unit 10a consists of a cutting edge 26a forming a cutting means 26a and a holding means forming cover plate 28a.
  • the cutting means 26a has a slot 20a on.
  • the cutting means 26a and the cover plate 28a are inserted in a groove-shaped recess 30a of the cutting bearing unit 22a and are pressed by means of a nut 32a on the front side of the cutting bearing unit 22a, with which it is driven in rotation together in operation.
  • the cutting means 26a is positively fixed in the groove-shaped recess 30a in the circumferential direction and non-positively in the radial direction between the cover plate 28a and the end face of the cutting bearing unit 22a.
  • the nut 32a which acts on the cover plate 28a via a washer 64a, is screwed onto a screw 34a screwed into the cutting bearing unit 22a with a hexagon socket 36a, so that when the cover plate 28a and the cutting means 26a become distorted with the end face of the cutting bearing unit 22a Torque compensation can be achieved by holding the screw 34 a with a hex key and the nut 32 a is rotated.
  • the cover plate 28a is coupled directly to the balance weight unit 12a via a form-locking coupling 16a provided to the cutting unit 10a and the balance weight unit 12a in the radial direction to a rotation axis 66a of the cutting bearing unit 22a and in the direction of the centrifugal force 14a of the cutting unit 10a and in FIG Direction of an acting centrifugal force 38a of the balance weight unit 12a to couple positively.
  • the centrifugal force 38a acting on the compensating weight unit 12a during operation is directly directed against the centrifugal force 14a acting on the cutting unit 10a during operation and corresponds to this.
  • the positive coupling 16a is from the cover plate 28a and the balance weight unit 12a molded hook-shaped projections 40a, 42a formed, which engage with each other.
  • the balance weight unit 12a is made of a cemented carbide, and like the cutting unit 10a and the cover plate 28a, is inserted into the groove-shaped recess 30a of the cutting bearing unit 22a, so that the balance weight unit 12a is held in the circumferential direction positively in the recess 30a. Further, the balance weight unit 12a is tensioned on the front side of the cutting storage unit 22a by means of a screw 44a, which is coupled via a fit with the balance weight unit 12a.
  • the cutting means 26a is provided for cutting edge reshardening and has a layer of a polycrystalline diamond on the end face of the cutting bearing unit 22a and a layer of hard metal on the cover plate 28a. If the cutting means 26a are reground, a consequent shortening can be compensated by a displacement made possible by the slot 20a in the radial direction to the outside. Further, the converter cutting apparatus includes a centrifugal force adjusting unit 18a integrally formed with a fixing unit of the cutting unit 10a, namely, a plurality of different nuts 32a having different weights.
  • the rotationally driven cutting means 26a cooperates with its cutting edge 24a with two stationary cutting units 60a, 62a, each forming a counter-cutting edge ( FIG. 1 ).
  • the direction of rotation are several of nozzle units formed fiber outlets 46a, 48a, and that is preferably in front of the cutting unit 60a, 62a each have a fixed fiber exit 46a, 48a are provided, which are provided in operation intended for cutting continuous fibers.
  • the fibers are preferably deployed from the fiber outlets 46a, 48a at least substantially parallel to the axis of rotation 66a of the cutting bearing unit 22a, ie, with a deviation of less than 10 ° and preferably less than 5 ° with respect to the axis of rotation 66a.
  • the converter has a compressed air unit which is provided to generate a flow of compressed air through the fiber outlets 46a, 48a, thereby conveying and aligning the fibers.
  • the conveying air flow can be controlled with a heat exchanger to a temperature which positively influences the cutting result, does not change the cutting gap and keeps the cutting edge temperature.
  • a hook-shaped extension 50a is integrally formed on the cover plate 28a in the radially outer region.
  • FIG. 3 an alternative embodiment is shown.
  • Substantially identical components, features and functions are basically numbered by the same reference numerals. To distinguish the embodiments, however, the letters a and b are added to the reference numerals of the embodiments. The following description is essentially limited to the differences from this Embodiment in the FIGS. 1 and 2 , wherein with respect to the same components, features and functions on the description of the embodiment in the FIGS. 1 and 2 can be referenced.
  • FIG. 3 shows a cutting bearing unit 22b and a converter cutting device of a converter for converting a plurality of continuous filaments.
  • the converter cutting device comprises a balance weight unit 12b and a cutting unit 10b integrally formed by a cutting member 26b constituting two cutting edges 24b, 24b '.
  • two cutting means 26b, 26b ' are provided, which are coupled via a form-locking coupling 16b, as shown in FIG FIG. 3 is indicated.
  • the cutting means 26b is mounted on the cutting bearing unit 22a by means of two screw-formed fasteners 52b, 54b which act via washers 56b, 58b directly on the cutting means 26b.
  • the cutting means 26b to be fastened by means of a cover plate 28b on which a plurality of screws and / or nuts act, as is also shown in FIG FIG. 3 is indicated.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Harvester Elements (AREA)
  • Crushing And Pulverization Processes (AREA)
  • One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
  • Sawing (AREA)
  • Auxiliary Devices For Machine Tools (AREA)

Abstract

A rotary-driven cutting device cooperates with two fixed cutting units (60a,62a) that each form an opposite cutting edge. Formed by jet/nozzle units, several fixed fiber discharge points (46a,48a) fit in a rotating direction. Each fixed fiber discharge point fits in front of the cutting units. When operating, continuous fibers are yielded for cutting. Fibers are yielded from the fixed fiber discharge points preferably parallel to the axis of rotation of a cutting layering unit (22a). An independent claim is also included for a converter for converting one or more fibers in a stack of fibers with a rotary-driven cutting layering unit.

Description

Stand der TechnikState of the art

Die Erfindung betrifft eine Konverterschneidvorrichtung zum Einsatz in einem Konverter zum Konvertieren von einem oder mehreren Fasern, insbesondere Endlosfasern, in Stapelfasern.The invention relates to a converter cutting device for use in a converter for converting one or more fibers, in particular continuous fibers, into staple fibers.

Aus der US 3,596,319 B ist bereits eine Konverterschneidvorrichtung bekannt, die eine zur Rotation vorgesehene Schneideinheit und wenigstens eine Ausgleichsgewichtseinheit umfasst, welche wenigstens teilweise zum Ausgleich einer während des Betriebs auf die Schneideinheit wirkenden Fliehkraft vorgesehen ist.From the US 3,596,319 B A converter cutting device is already known which comprises a cutting unit provided for rotation and at least one compensating weight unit which is provided at least partially for compensating a centrifugal force acting on the cutting unit during operation.

Vorteile der ErfindungAdvantages of the invention

Die Erfindung geht aus von einer Konverterschneidvorrichtung mit wenigstens einer zur Rotation vorgesehenen Schneideinheit und mit wenigstens einer Ausgleichsgewichtseinheit, die wenigstens teilweise zum Ausgleich einer während des Betriebs auf die Schneideinheit wirkenden Fliehkraft vorgesehen ist. Es wird vorgeschlagen, dass die Konverterschneidvorrichtung wenigstens eine Fliehkrafteinstelleinheit umfasst. Dabei soll unter einer "Ausgleichsgewichtseinheit" insbesondere eine Einheit verstanden werden, die gezielt für einen Ausgleich vorgesehen und/oder ausgelegt ist, wobei unter einem "Ausgleich" insbesondere verstanden werden soll, dass eine auf die Ausgleichsgewichtseinheit wirkende Fliehkraft zumindest teilweise der auf die Schneideinheit wirkenden Fliehkraft entgegen wirkt. Unter einer "Schneideinheit" soll insbesondere eine Einheit verstanden werden, die aus einem Schneidmittel und/oder aus einem Schneidmittel und einem Schneidhaltemittel besteht. Ferner soll unter "vorgesehen" insbesondere speziell ausgestattet und/oder ausgelegt verstanden werden. Mittels einer entsprechenden Einstelleinheit kann ein besonders vorteilhafter dynamischer Unwuchtausgleich realisiert werden. Ferner können durch eine entsprechende erfindungsgemäße Ausgestaltung Fliehkräfte und/oder Unwuchten vorteilhaft ausgeglichen werden und die Schneideinheit kann vorteilhaft gesichert bzw. gehalten werden, und zwar insbesondere, wenn die Ausgleichsgewichtseinheit dazu vorgesehen ist, zumindest einen Großteil der auf die Schneideinheit wirkenden Fliehkraft auszugleichen, d.h. dass im Betrieb auf die Ausgleichsgewichtseinheit eine Fliehkraft wirkt, die mindestens 50% der auf die Schneideinheit wirkenden Fliehkraft beträgt und dieser entgegengerichtet ist.The invention is based on a converter cutting device with at least one cutting unit provided for rotation and with at least one compensating weight unit which is provided at least partially for compensating a centrifugal force acting on the cutting unit during operation. It is proposed that the converter cutting device comprises at least one centrifugal force adjusting unit. In this case, a "compensating weight unit" should be understood to mean, in particular, a unit that is specifically intended and / or designed for compensation, wherein "compensation" is to be understood in particular as meaning that a centrifugal force acting on the compensating weight unit at least partially acts on the cutting unit Centrifugal force counteracts. A "cutting unit" is to be understood in particular a unit which consists of a cutting means and / or a cutting means and a cutting holder. Furthermore, "intended" should be understood to mean in particular specially equipped and / or designed. By means of a corresponding adjustment unit, a particularly advantageous dynamic unbalance compensation can be realized. Furthermore, by a corresponding inventive design centrifugal forces and / or imbalances can be compensated advantageous and the cutting unit can be advantageously secured or held, in particular if the balance weight unit is provided to compensate for at least a majority of the centrifugal force acting on the cutting unit, ie that In operation, a centrifugal force acting on the balance weight unit, which is at least 50% of the centrifugal force acting on the cutting unit and this is opposite.

Ferner wird vorgeschlagen, dass die Fliehkrafteinstelleinheit dazu vorgesehen ist, eine Fliehkraft einzustellen, die entweder in Richtung einer Fliehkraft der Schneideinheit und/oder in Richtung einer Fliehkraft der Ausgleichsgewichtseinheit wirkt, wobei die Einstelleinheit von einem zur Schneideinheit und/oder Ausgleichsgewichtseinheit getrennt ausgebildeten Einheit gebildet sein kann oder auch zumindest mit einem der Einheiten zumindest teilweise einstückig ausgebildet sein kann. Die Fliehkrafteinstelleinheit ist vorteilhafterweise von einer Gewichtseinstelleinheit gebildet, mittels deren ein Gewicht einstellbar ist, und/oder von einer Einheit, mittels deren eine Lage eines Gewichts zur Einstellung einer Fliehkraft veränderbar ist. Mittels einer entsprechenden Einheit kann ein besonders vorteilhafter dynamischer Unwuchtausgleich realisiert werden und insbesondere kann eine durch eine Schneidkantenerneuerung bedingte Gewichtsdifferenz ausgeglichen werden.It is also proposed that the centrifugal force adjusting unit is provided to set a centrifugal force which acts either in the direction of centrifugal force of the cutting unit and / or in the direction of centrifugal force of the balancing weight unit, wherein the setting unit of one to the cutting unit and / or balance weight unit may be formed separately unit or at least partially with one of the units may be formed integrally at least partially. The centrifugal force adjusting unit is advantageously formed by a weight setting unit, by means of which a weight can be adjusted, and / or by a unit, by means of which a position of a weight for adjusting a centrifugal force is variable. By means of a corresponding unit, a particularly advantageous dynamic imbalance compensation can be realized and, in particular, a weight difference caused by a cutting edge renewal can be compensated.

Ist die Einstelleinheit zumindest teilweise einstückig mit einer Befestigungseinheit ausgebildet, können zusätzliche Bauteile, Bauraum, Montageaufwand und Kosten eingespart werden.If the setting unit is formed at least partially in one piece with a fastening unit, additional components, installation space, installation effort and costs can be saved.

Weist die Schneideinheit wenigstens ein Langloch auf, kann ferner eine vorteilhafte Einstellung erreicht werden, und zwar kann insbesondere bei einer Schneidkantenerneuerung ein Längenausgleich einfach realisiert werden.If the cutting unit has at least one elongated hole, an advantageous adjustment can also be achieved, and in particular a length compensation can be easily realized, in particular in the case of a cutting edge renewal.

Des Weiteren wird vorgeschlagen, dass die Ausgleichsgewichtseinheit über dritte Bauteile oder vorteilhaft unmittelbar mit einem Bauteil der Schneideinheit gekoppelt ist, wodurch eine Belastung von dritten Bauteilen zumindest weitgehend vorteilhaft vermieden werden kann.Furthermore, it is proposed that the compensating weight unit is coupled via third components or advantageously directly to a component of the cutting unit, whereby a load of third components can be avoided, at least substantially advantageously.

Die Ausgleichsgewichtseinheit kann aus verschiedenen, dem Fachmann als sinnvoll erscheinenden Materialien gebildet sein, wobei insbesondere mit verschiedenen Materialien mit verschiedenen spezifischen Dichten gezielt unterschiedliche Ausgleichsgewichte und Volumina der Ausgleichsgewichtseinheit erzielt werden können und damit ein vorteilhaft dynamischer Unwuchtausgleich erreicht werden kann. Vorzugsweise ist die Ausgleichsgewichtseinheit jedoch zumindest teilweise aus einem der Schneideinheit entsprechenden Material gebildet. Bildet die Ausgleichsgewichtseinheit ein Bauteil der Schneideinheit bzw. ist die Ausgleichsgewichtseinheit zumindest teilweise einstückig mit der Schneideinheit ausgebildet, beispielsweise indem diese ein unmittelbar auf ein Schneidmittel wirkendes Schneidbefestigungsmittel oder ein Schneidmittel selbst bildet, können zusätzliche Bauteile, Bauraum und Montageaufwand reduziert werden. Vorzugsweise kann die Ausgleichsgewichtseinheit auch neben einer ersten Schneidkante eines ersten Schneidmittels eine zweite Scheidkante bilden. Bei einem entsprechenden Fall werden vorzugsweise Freiwinkel direkt in die Schneidmittel eingebracht, d.h. insbesondere angeformt und/oder angeschliffen.The balance weight unit can be formed from various materials that appear appropriate to the person skilled in the art be, in particular with different materials with different specific densities specifically different balancing weights and volumes of the balancing weight unit can be achieved and thus an advantageous dynamic unbalance compensation can be achieved. Preferably, however, the balance weight unit is at least partially formed from a material corresponding to the cutting unit. If the compensating weight unit forms a component of the cutting unit or if the compensating weight unit is formed at least partially integrally with the cutting unit, for example by forming a cutting attachment means or cutting means acting directly on a cutting means, additional components, installation space and assembly costs can be reduced. The compensating weight unit can preferably also form a second cutting edge next to a first cutting edge of a first cutting means. In a corresponding case, clearance angles are preferably introduced directly into the cutting means, ie in particular formed and / or ground.

In einer weiteren Ausgestaltung der Erfindung wird vorgeschlagen, dass die Konverterschneidvorrichtung eine Kupplung aufweist, die dazu vorgesehen ist, die Schneideinheit und die Ausgleichsgewichtseinheit zu kuppeln. Durch eine dadurch mögliche mehrteilige Ausgestaltung können flexible Einstellungen ermöglicht werden, insbesondere können Nachstellungen und/oder Einstellungen von Freiwinkel der Schneideinheit einfach realisiert werden.In a further embodiment of the invention it is proposed that the converter cutting device has a coupling which is intended to couple the cutting unit and the balance weight unit. By a possible multi-part design flexible settings can be made possible, in particular adjustments and / or settings of clearance angle of the cutting unit can be easily realized.

Die Kupplung kann von einer Reibkupplung und/oder besonders vorteilhaft wenigstens teilweise von einer Formschlusskupplung gebildet sein. Dabei soll in diesem Zusammenhang unter einer "Formschlusskupplung" insbesondere eine Kupplung verstanden werden, mittels der zumindest ein wesentlicher Bestandteil, d.h. mindestens 10%, vorzugsweise mindestens 30% und besonders vorteilhaft mindestens 50%, der Fliehkraft über einen Formschluss der Kupplung aufgenommen werden kann und insbesondere im Betrieb aufgenommen wird. Durch eine entsprechende Kupplung können vorteilhaft verschiedene Materialien, insbesondere auch Materialien mit geringen Reibwerten, sicher miteinander gekoppelt werden.The clutch may be formed by a friction clutch and / or particularly advantageous at least partially by a form-locking coupling. In this context, a "form-locking coupling" should in particular be understood to mean a coupling by means of which at least one essential component, i. at least 10%, preferably at least 30% and particularly advantageously at least 50%, of the centrifugal force can be absorbed via a positive connection of the coupling and is received in particular during operation. By means of a corresponding coupling, various materials, in particular also materials with low coefficients of friction, can be coupled to one another with certainty.

In einer weiteren Ausgestaltung der Erfindung wird vorgeschlagen, dass die Schneideinheit zur Schneidkantenerneuerung, d.h. insbesondere zum Nachschleifen und/oder Abtrennen, vorgesehen ist, wodurch Kosten eingespart werden können.In a further embodiment of the invention it is proposed that the cutting unit for cutting edge renewal, i. especially for regrinding and / or separating, is provided, which costs can be saved.

Die Schneideinheit kann aus verschiedenen, dem Fachmann als sinnvoll erscheinenden Materialien gebildet sein, wie beispielsweise aus einem Hartmetall, einem Keramikmaterial usw., besonders vorteilhaft ist die Schneideinheit jedoch zumindest teilweise aus einem polykristallinen Diamanten gebildet, mittels dem vorteilhafte Schneideigenschaften und hohe Standzeiten erreicht werden können.The cutting unit can be formed from various materials that appear appropriate to the person skilled in the art, such as, for example, a hard metal, a ceramic material, etc. However, the cutting unit is particularly advantageously formed at least partially from a polycrystalline diamond by means of which advantageous cutting properties and long service lives can be achieved ,

Ferner wird ein Konverter zum Konvertieren von einem oder mehreren Fasern, insbesondere Endlosfasern in Stapelfasern mit wenigstens einer rotierend antreibbaren Schneidlagereinheit und mit einer erfindungsgemäßen Konverterschneidvorrichtung vorgeschlagen.Furthermore, a converter for converting one or more fibers, in particular continuous fibers into staple fibers with at least one rotationally drivable cutting bearing unit and with a converter cutting device according to the invention is proposed.

Weist der Konverter wenigstens eine zweite rotierend antreibbare Schneidlagereinheit auf, können gegenüber einem Konverter mit nur einer Schneidlagereinheit geringere Drehzahlen und/oder ein größerer Durchsatz erzielt werden.If the converter has at least one second cutting unit that can be driven in a rotating manner, it is possible to achieve lower speeds and / or a higher throughput compared to a converter with only one cutting unit.

Ferner wird vorgeschlagen, dass der Konverter wenigstens eine feststehende, eine Gegenschneide bildende Schneideinheit aufweist, wodurch besonders vorteilhafte Schneideigenschaften erzielt werden können.It is also proposed that the converter has at least one fixed cutting unit forming a counter-cutting edge, whereby particularly advantageous cutting properties can be achieved.

Der Konverter weist ferner vorzugsweise wenigstens eine und vorteilhaft mehrere Düseneinheiten auf, die dazu vorgesehen sind, dass jeweils wenigstens ein Faserstrang und ein Fördermedium zur Ausrichtung des Faserstrangs hindurchgeführt werden. Vorzugsweise weist der Konverter eine Drucklufteinheit auf, die zur Erzeugung eines Druckluftmediumstroms durch die Düseneinheit vorgesehen ist.The converter further preferably has at least one and advantageously a plurality of nozzle units, which are provided so that in each case at least one fiber strand and a conveying medium for the alignment of the fiber strand are passed. Preferably, the converter has a compressed air unit which is provided for generating a compressed air medium flow through the nozzle unit.

Zeichnungdrawing

Weitere Vorteile ergeben sich aus der folgenden Zeichnungsbeschreibung. In der Zeichnung sind Ausführungsbeispiele der Erfindung dargestellt. Die Zeichnung, die Beschreibung und die Ansprüche enthalten zahlreiche Merkmale in Kombination. Der Fachmann wird die Merkmale zweckmäßigerweise auch einzeln betrachten und zu sinnvollen weiteren Kombinationen zusammenfassen.Further advantages emerge from the following description of the drawing. In the drawings, embodiments of the invention are shown. The drawing, the description and the claims contain numerous features in combination. The person skilled in the art will expediently also consider the features individually and combine them into meaningful further combinations.

Es zeigen:

Fig. 1
einen Ausschnitt eines Konverters,
Fig. 2
eine vergrößerte Darstellung einer Schneidlagereinheit des Konverters aus Figur 1 mit einer Konverterschneidvorrichtung und
Fig. 3
eine schematische Darstellung einer alternativen Konverterschneidvorrichtung.
Show it:
Fig. 1
a section of a converter,
Fig. 2
an enlarged view of a cutting bearing unit of the converter FIG. 1 with a converter cutter and
Fig. 3
a schematic representation of an alternative converter cutting device.

Beschreibung der AusführungsbeispieleDescription of the embodiments

Figur 1 zeigt einen Ausschnitt eines Konverters zum Konvertieren von mehreren Endlosgarnen in Stapelfasern mit mehreren rotierend antreibbaren, von Wellen gebildeten Schneidlagereinheiten 22a, die zur Lagerung von Konverterschneidvorrichtungen dienen, und zwar ist an jeweils einer Stirnseite der Wellen jeweils ein Aufnahmebereich zur Aufnahme der Konverterschneidvorrichtungen angeordnet. Die Schneidlagereinheiten 22a und die Konverterschneidvorrichtungen sind entsprechend ausgebildet, so dass im Nachfolgenden die Beschreibung auf eine einzelne Konverterschneidvorrichtung und eine einzelne Schneidlagereinheit 22a begrenzt werden kann (Figur 2). FIG. 1 shows a section of a converter for converting several continuous yarns into staple fibers with a plurality of rotationally driven, formed by shaft cutting bearing units 22a, which serve for the storage of converter cutting devices, namely, in each case one end face of the shafts, a receiving area for receiving the converter cutting devices is arranged. The cutting bearing units 22a and the converter cutting devices are designed accordingly, so that in the following the description can be limited to a single converter cutting device and a single cutting bearing unit 22a ( FIG. 2 ).

Die Konverterschneidvorrichtung umfasst eine zur Rotation vorgesehene Schneideinheit 10a und eine Ausgleichsgewichtseinheit 12a, die zum Ausgleich einer während des Betriebs auf die Schneideinheit 10a wirkenden Fliehkraft 14a vorgesehen ist. Die Schneideinheit 10a besteht aus einem eine Schneidkante 24a bildenden Schneidmittel 26a und einer ein Haltemittel bildenden Abdeckscheibe 28a. Das Schneidmittel 26a weist ein Langloch 20a auf. Das Schneidmittel 26a und die Abdeckscheibe 28a sind in einer nutförmigen Ausnehmung 30a der Schneidlagereinheit 22a eingebracht und werden mittels einer Mutter 32a auf die Stirnseite der Schneidlagereinheit 22a gepresst, mit der sie im Betrieb gemeinsam rotierend angetrieben wird. Das Schneidmittel 26a ist in der nutförmigen Ausnehmung 30a in Umfangsrichtung formschlüssig und in radialer Richtung zwischen der Abdeckscheibe 28a und der Stirnseite der Schneidlagereinheit 22a kraftschlüssig fixiert. Die Mutter 32a, die über eine Unterlegscheibe 64a auf die Abdeckscheibe 28a wirkt, ist auf eine in die Schneidlagereinheit 22a eingeschraubte Schraube 34a mit einem Innensechskant 36a aufgeschraubt, so dass bei einem Verspannen der Abdeckscheibe 28a und dem Schneidmittel 26a mit der Stirnseite der Schneidlagereinheit 22a ein Drehmomentausgleich erreicht werden kann, indem die Schraube 34a mit einem Innensechskantschlüssel gehalten und die Mutter 32a gedreht wird.The converter cutting device comprises a cutting unit 10a provided for rotation and a balance weight unit 12a provided for compensating a centrifugal force 14a acting on the cutting unit 10a during operation. The cutting unit 10a consists of a cutting edge 26a forming a cutting means 26a and a holding means forming cover plate 28a. The cutting means 26a has a slot 20a on. The cutting means 26a and the cover plate 28a are inserted in a groove-shaped recess 30a of the cutting bearing unit 22a and are pressed by means of a nut 32a on the front side of the cutting bearing unit 22a, with which it is driven in rotation together in operation. The cutting means 26a is positively fixed in the groove-shaped recess 30a in the circumferential direction and non-positively in the radial direction between the cover plate 28a and the end face of the cutting bearing unit 22a. The nut 32a, which acts on the cover plate 28a via a washer 64a, is screwed onto a screw 34a screwed into the cutting bearing unit 22a with a hexagon socket 36a, so that when the cover plate 28a and the cutting means 26a become distorted with the end face of the cutting bearing unit 22a Torque compensation can be achieved by holding the screw 34 a with a hex key and the nut 32 a is rotated.

Die Abdeckscheibe 28a ist unmittelbar mit der Ausgleichsgewichtseinheit 12a über eine Formschlusskupplung 16a gekoppelt, die dazu vorgesehen ist, die Schneideinheit 10a und die Ausgleichsgewichtseinheit 12a in radialer Richtung zu einer Rotationsachse 66a der Schneidlagereinheit 22a bzw. in Richtung der wirkenden Fliehkraft 14a der Schneideinheit 10a und in Richtung einer wirkenden Fliehkraft 38a der Ausgleichsgewichtseinheit 12a formschlüssig zu kuppeln. Dabei ist die während des Betriebs auf die Ausgleichsgewichtseinheit 12a wirkende Fliehkraft 38a der während des Betriebs auf die Schneideinheit 10a wirkenden Fliehkraft 14a unmittelbar entgegen gerichtet und entspricht dieser. Die Formschlusskupplung 16a wird von an die Abdeckscheibe 28a und an die Ausgleichsgewichtseinheit 12a angeformten hakenförmigen Fortsätzen 40a, 42a gebildet, die ineinander eingreifen.The cover plate 28a is coupled directly to the balance weight unit 12a via a form-locking coupling 16a provided to the cutting unit 10a and the balance weight unit 12a in the radial direction to a rotation axis 66a of the cutting bearing unit 22a and in the direction of the centrifugal force 14a of the cutting unit 10a and in FIG Direction of an acting centrifugal force 38a of the balance weight unit 12a to couple positively. In this case, the centrifugal force 38a acting on the compensating weight unit 12a during operation is directly directed against the centrifugal force 14a acting on the cutting unit 10a during operation and corresponds to this. The positive coupling 16a is from the cover plate 28a and the balance weight unit 12a molded hook-shaped projections 40a, 42a formed, which engage with each other.

Die Ausgleichsgewichtseinheit 12a ist aus einem Hartmetall, und ist wie die Schneideinheit 10a und die Abdeckscheibe 28a in die nutförmige Ausnehmung 30a der Schneidlagereinheit 22a eingesetzt, so dass die Ausgleichsgewichtseinheit 12a in Umfangsrichtung formschlüssig in der Ausnehmung 30a gehalten ist. Ferner ist die Ausgleichsgewichtseinheit 12a mittels einer Schraube 44a, die über eine Passung mit der Ausgleichsgewichtseinheit 12a gekoppelt ist, auf die Stirnseite der Schneidlagereinheit 22a gespannt.The balance weight unit 12a is made of a cemented carbide, and like the cutting unit 10a and the cover plate 28a, is inserted into the groove-shaped recess 30a of the cutting bearing unit 22a, so that the balance weight unit 12a is held in the circumferential direction positively in the recess 30a. Further, the balance weight unit 12a is tensioned on the front side of the cutting storage unit 22a by means of a screw 44a, which is coupled via a fit with the balance weight unit 12a.

Das Schneidmittel 26a ist zur Schneidkantenerneuerung bzw. zum Nachschleifen vorgesehen und weist zur Stirnseite der Schneidlagereinheit 22a eine Schicht aus einem polykristallinen Diamanten und zur Abdeckscheibe 28a eine Schicht aus einem Hartmetall auf. Wird das Schneidmittel 26a nachgeschliffen, kann eine dadurch bedingte Verkürzung durch eine durch das Langloch 20a ermöglichte Verschiebung in radialer Richtung nach außen ausgeglichen werden. Ferner umfasst die Konverterschneidvorrichtung eine Fliehkrafteinstelleinheit 18a, die einstückig mit einer Befestigungseinheit der Schneideinheit 10a ausgebildet ist, und zwar sind mehrere verschiedene Muttern 32a mit unterschiedlichen Gewichten vorgesehen.The cutting means 26a is provided for cutting edge reshardening and has a layer of a polycrystalline diamond on the end face of the cutting bearing unit 22a and a layer of hard metal on the cover plate 28a. If the cutting means 26a are reground, a consequent shortening can be compensated by a displacement made possible by the slot 20a in the radial direction to the outside. Further, the converter cutting apparatus includes a centrifugal force adjusting unit 18a integrally formed with a fixing unit of the cutting unit 10a, namely, a plurality of different nuts 32a having different weights.

Im Betrieb wirkt das rotierend angetriebene Schneidmittel 26a mit seiner Schneidkante 24a mit zwei feststehenden, jeweils eine Gegenschneide bildenden Schneideinheiten 60a, 62a zusammen (Figur 1). In Rotationsrichtung sind mehrere von Düseneinheiten gebildete Faseraustritte 46a, 48a vorgesehen, und zwar ist vorzugsweise vor den Schneideinheit 60a, 62a jeweils ein feststehender Faseraustritt 46a, 48a angeordnet, aus denen im Betrieb zum Schneiden vorgesehene Endlosfasern ausgebracht werden. Die Fasern werden vorzugsweise zumindest im Wesentlichen parallel zur Rotationsachse 66a der Schneidlagereinheit 22a, d.h. mit einer Abweichung von weniger als 10° und vorzugsweise von, weniger als 5° zu einer Parallelen zur Rotationsachse 66a, aus den Faseraustritten 46a, 48a ausgebracht. Der Konverter weist eine Drucklufteinheit auf, die dazu vorgesehen ist, einen Druckluftstrom durch die Faseraustritte 46a, 48a zu erzeugen und dabei die Fasern zu fördern und auszurichten.In operation, the rotationally driven cutting means 26a cooperates with its cutting edge 24a with two stationary cutting units 60a, 62a, each forming a counter-cutting edge ( FIG. 1 ). In the direction of rotation are several of nozzle units formed fiber outlets 46a, 48a, and that is preferably in front of the cutting unit 60a, 62a each have a fixed fiber exit 46a, 48a are provided, which are provided in operation intended for cutting continuous fibers. The fibers are preferably deployed from the fiber outlets 46a, 48a at least substantially parallel to the axis of rotation 66a of the cutting bearing unit 22a, ie, with a deviation of less than 10 ° and preferably less than 5 ° with respect to the axis of rotation 66a. The converter has a compressed air unit which is provided to generate a flow of compressed air through the fiber outlets 46a, 48a, thereby conveying and aligning the fibers.

Der Förderluftstrom kann mit einem Wärmetauscher auf eine Temperatur geregelt werden, welche das Schneidergebnis positiv beeinflusst, den Schnittspalt nicht verändert und die Schneidentemperatur hält.The conveying air flow can be controlled with a heat exchanger to a temperature which positively influences the cutting result, does not change the cutting gap and keeps the cutting edge temperature.

Für einen vorteilhaften seitlichen Abtransport aus den jeweiligen Faseraustrittsbereichen ist an die Abdeckscheibe 28a im radial äußeren Bereich ein hakenförmiger Fortsatz 50a angeformt.For an advantageous lateral removal from the respective fiber exit areas, a hook-shaped extension 50a is integrally formed on the cover plate 28a in the radially outer region.

In Figur 3 ist ein alternatives Ausführungsbeispiel dargestellt. Im Wesentlichen gleich bleibende Bauteile, Merkmale und Funktionen sind grundsätzlich mit den gleichen Bezugszeichen beziffert. Zur Unterscheidung der Ausführungsbeispiele sind jedoch den Bezugszeichen der Ausführungsbeispiele die Buchstaben a und b hinzugefügt. Die nachfolgende Beschreibung beschränkt sich im Wesentlichen auf die Unterschiede zu dem Ausführungsbeispiel in den Figuren 1 und 2, wobei bezüglich gleich bleibender Bauteile, Merkmale und Funktionen auf die Beschreibung des Ausführungsbeispiels in den Figuren 1 und 2 verwiesen werden kann.In FIG. 3 an alternative embodiment is shown. Substantially identical components, features and functions are basically numbered by the same reference numerals. To distinguish the embodiments, however, the letters a and b are added to the reference numerals of the embodiments. The following description is essentially limited to the differences from this Embodiment in the FIGS. 1 and 2 , wherein with respect to the same components, features and functions on the description of the embodiment in the FIGS. 1 and 2 can be referenced.

Figur 3 zeigt eine Schneidlagereinheit 22b und eine Konverterschneidvorrichtung eines Konverters zum Konvertieren von mehreren Endlosgarnen. Die Konverterschneidvorrichtung umfasst eine Ausgleichsgewichtseinheit 12b und eine Schneideinheit 10b, die einstückig ausgebildet bzw. von einem Bauteil gebildet sind, und zwar von einem zwei Schneidkanten 24b, 24b' bildenden Schneidmittel 26b. Grundsätzlich ist auch denkbar, dass zwei Schneidmittel 26b, 26b' vorgesehen sind, die über eine Formschlusskupplung 16b gekoppelt sind, wie dies in Figur 3 angedeutet ist. Das Schneidmittel 26b ist auf der Schneidlagereinheit 22a mittels zwei von Schrauben gebildeter Befestigungsmittel 52b, 54b befestigt, die über Unterlegscheiben 56b, 58b unmittelbar auf das Schneidmittel 26b wirken. Denkbar wäre jedoch auch, dass das Schneidmittel 26b über eine Abdeckscheibe 28b befestigt ist, auf die mehrere Schrauben und/oder Muttern wirken, wie dies ebenfalls in Figur 3 angedeutet ist. FIG. 3 shows a cutting bearing unit 22b and a converter cutting device of a converter for converting a plurality of continuous filaments. The converter cutting device comprises a balance weight unit 12b and a cutting unit 10b integrally formed by a cutting member 26b constituting two cutting edges 24b, 24b '. In principle, it is also conceivable that two cutting means 26b, 26b 'are provided, which are coupled via a form-locking coupling 16b, as shown in FIG FIG. 3 is indicated. The cutting means 26b is mounted on the cutting bearing unit 22a by means of two screw-formed fasteners 52b, 54b which act via washers 56b, 58b directly on the cutting means 26b. It would also be conceivable, however, for the cutting means 26b to be fastened by means of a cover plate 28b on which a plurality of screws and / or nuts act, as is also shown in FIG FIG. 3 is indicated.

Bezugszeichenreference numeral

1010
Schneideinheitcutting unit
1212
AusgleichsgewichtseinheitCounterweight unit
1414
Fliehkraftcentrifugal
1616
Kupplungclutch
1818
FliehkrafteinstelleinheitFliehkrafteinstelleinheit
2020
LanglochLong hole
2222
SchneidlagereinheitCutting bearing unit
2424
Schneidkantecutting edge
2626
Schneidmittelcutting means
2828
Abdeckscheibecover plate
3030
Ausnehmungrecess
3232
Muttermother
3434
Schraubescrew
3636
InnensechskantAllen
3838
Fliehkraftcentrifugal
4040
Fortsatzextension
4242
Fortsatzextension
4444
Schraubescrew
4646
Faseraustrittfiber exit
4848
Faseraustrittfiber exit
5050
Fortsatzextension
5252
Befestigungsmittelfastener
5454
Befestigungsmittelfastener
5656
Unterlegscheibewasher
5858
Unterlegscheibewasher
6060
Schneideinheitcutting unit
6262
Schneideinheitcutting unit
6464
Unterlegscheibewasher
6666
Rotationsachseaxis of rotation

Claims (16)

Konverterschneidvorrichtung mit wenigstens einer zur Rotation vorgesehenen Schneideinheit (10a; 10b) und mit wenigstens einer Ausgleichsgewichtseinheit (12a; 12b), die wenigstens teilweise zum Ausgleich einer während des Betriebs auf die Schneideinheit (10a; 10b) wirkenden Fliehkraft (14a; 14b) vorgesehen ist,
gekennzeichnet durch
wenigstens eine Fliehkrafteinstelleinheit (18a).A converter cutting device comprising at least one cutting unit (10a; 10b) provided for rotation and at least one balance weight unit (12a; 12b) provided at least partially for balancing a centrifugal force (14a; 14b) acting on the cutting unit (10a; 10b) during operation .
marked by
at least one centrifugal force adjusting unit (18a). Konverterschneidvorrichtung nach Anspruch 1,
dadurch gekennzeichnet,
dass die Fliehkrafteinstelleinheit (18a) dazu vorgesehen ist, eine Fliehkraft einzustellen, die entweder in Richtung einer Fliehkraft der Schneideinheit (10a) und/oder in Richtung einer Fliehkraft der Ausgleichsgewichtseinheit (12a) wirkt.Converter cutting device according to claim 1,
characterized,
in that the centrifugal force adjusting unit (18a) is provided to set a centrifugal force which acts either in the direction of a centrifugal force of the cutting unit (10a) and / or in the direction of a centrifugal force of the balancing weight unit (12a). Konverterschneidvorrichtung nach Anspruch 2,
dadurch gekennzeichnet,
dass die Fliehkrafteinstelleinheit (18a) von einer Gewichtseinstelleinheit, mittels deren ein Gewicht einstellbar ist, und/oder einer Einheit, mittels deren eine Lage eines Gewichts zur Einstellung einer Fliehkraft veränderbar ist, gebildet ist.Converter cutting device according to claim 2,
characterized,
in that the centrifugal force adjusting unit (18a) is formed by a weight setting unit, by means of which a weight is adjustable, and / or a unit, by means of which a position of a weight for setting a centrifugal force is variable. Konverterschneidvorrichtung nach Anspruch 2 oder 3,
dadurch gekennzeichnet,
dass die Fliehkrafteinstelleinheit (18a) zumindest teilweise einstückig mit einer Befestigungseinheit ausgebildet ist.Converter cutting device according to claim 2 or 3,
characterized,
in that the centrifugal force adjusting unit (18a) is formed at least partially in one piece with a fastening unit. Konverterschneidvorrichtung nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
dass die Schneideinheit (10a) wenigstens ein Langloch (20a) aufweist.Converter cutting device according to one of the preceding claims,
characterized,
that the cutting unit (10a) comprises at least one elongated hole (20a). Konverterschneidvorrichtung nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
dass die Ausgleichsgewichtseinheit (12a; 12b) dazu vorgesehen ist, zumindest einen Großteil der auf die Schneideinheit (10a; 10b) wirkenden Fliehkraft (14a; 14b) auszugleichen.Converter cutting device according to one of the preceding claims,
characterized,
in that the compensating weight unit (12a, 12b) is provided to compensate at least a major part of the centrifugal force (14a, 14b) acting on the cutting unit (10a; 10b). Konverterschneidvorrichtung nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
dass die Ausgleichsgewichtseinheit (12a; 12b) unmittelbar mit einem Bauteil der Schneideinheit (10a; 10b) gekoppelt ist.Converter cutting device according to one of the preceding claims,
characterized,
that the counterweight unit (12a; 12b) directly to a component of the cutting unit (10a; 10b) is coupled. Konverterschneidvorrichtung nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
dass die Ausgleichsgewichtseinheit (12a; 12b) zumindest teilweise aus einem der Schneideinheit (10a; 10b) entsprechenden Material gebildet ist.Converter cutting device according to one of the preceding claims,
characterized,
that the counterweight unit (12a; 12b) at least partially from one of the cutting unit (10a; 10b) corresponding material is formed. Konverterschneidvorrichtung nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
dass die Ausgleichsgewichtseinheit (12b) ein Bauteil der Schneideinheit (10b) bildet.Converter cutting device according to one of the preceding claims,
characterized,
that the balancing weight unit (12b) forms a part of the cutting unit (10b). Konverterschneidvorrichtung nach einem der vorhergehenden Ansprüche,
gekennzeichnet durch
eine Kupplung (16a; 16b), die dazu vorgesehen ist, die Schneideinheit (10a; 10b) und die Ausgleichsgewichtseinheit (12a; 12b) zu kuppeln.Converter cutting device according to one of the preceding claims,
marked by
a clutch (16a; 16b) adapted to couple the cutting unit (10a; 10b) and the balance weight unit (12a; 12b). Konverterschneidvorrichtung nach Anspruch 10,
dadurch gekennzeichnet,
dass die Kupplung (16a; 16b) wenigstens teilweise von einer Formschlusskupplung gebildet ist.Converter cutting device according to claim 10,
characterized,
in that the coupling (16a, 16b) is at least partially formed by a form-locking coupling. Konverterschneidvorrichtung nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
dass die Schneideinheit (10a; 10b) zur Schneidkantenerneuerung vorgesehen ist.Converter cutting device according to one of the preceding claims,
characterized,
in that the cutting unit (10a, 10b) is provided for cutting edge renewal. Konverterschneidvorrichtung nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
dass die Schneideinheit (10a; 10b) wenigstens teilweise aus einem polykristallinen Diamant gebildet ist.Converter cutting device according to one of the preceding claims,
characterized,
in that the cutting unit (10a, 10b) is formed at least partially from a polycrystalline diamond. Konverter zum Konvertieren von einem oder mehreren Fasern in Stapelfasern mit wenigstens einer rotierend antreibbaren Schneidlagereinheit (22a) und mit einer Konverterschneidvorrichtung nach einem der vorhergehenden Ansprüche.A converter for converting one or more fibers into staple fibers with at least one rotationally drivable cutting bearing unit (22a) and with a converter cutting device according to any one of the preceding claims. Konverter nach Anspruch 14,
gekennzeichnet durch
wenigstens eine zweite rotierend antreibbare Schneidlagereinheit (22a').Converter according to claim 14,
marked by
at least one second rotary cutting bearing unit (22a '). Konverter nach Anspruch 14 oder 15,
gekennzeichnet durch
wenigstens eine feststehende, eine Gegenschneide bildende Schneideinheit (60a, 62a).Converter according to claim 14 or 15,
marked by
at least one fixed cutting unit (60a, 62a) forming a counterknife.
EP11004921.0A 2007-11-03 2008-10-24 Converter cutting device Not-in-force EP2407284B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200710052586 DE102007052586A1 (en) 2007-11-03 2007-11-03 cutter
EP08844656A EP2217414B1 (en) 2007-11-03 2008-10-24 Cutting device

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP08844656A Division EP2217414B1 (en) 2007-11-03 2008-10-24 Cutting device
EP08844656.2 Division 2008-10-24

Publications (2)

Publication Number Publication Date
EP2407284A1 true EP2407284A1 (en) 2012-01-18
EP2407284B1 EP2407284B1 (en) 2014-05-07

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EP08844656A Not-in-force EP2217414B1 (en) 2007-11-03 2008-10-24 Cutting device
EP11004921.0A Not-in-force EP2407284B1 (en) 2007-11-03 2008-10-24 Converter cutting device

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Country Status (5)

Country Link
EP (2) EP2217414B1 (en)
CN (1) CN101855048B (en)
DE (1) DE102007052586A1 (en)
ES (1) ES2400465T3 (en)
WO (1) WO2009056259A2 (en)

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DE102010002271B4 (en) 2010-02-24 2012-05-31 Mag Ias Gmbh Cutting device for shearing fiber strands
DE202010017556U1 (en) 2010-09-16 2012-01-30 Schmidt & Heinzmann Gmbh & Co. Kg Fiber cutter
DE102010045702A1 (en) 2010-09-16 2012-03-22 Schmidt & Heinzmann Gmbh & Co. Kg Fiber cutter
DE102015109712A1 (en) 2015-06-17 2016-12-22 Schmidt & Heinzmann Gmbh & Co. Kg Converter cutter
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US3596319A (en) * 1968-07-22 1971-08-03 Du Pont Foam filament cutter
US6422113B1 (en) * 1997-06-05 2002-07-23 Jagenberg Papiertechnik Gmbh Knife drum for machines for cross-cutting lines of material
US6186424B1 (en) * 1998-07-15 2001-02-13 The Japan Steel Works, Ltd. Method and apparatus for manufacturing chips for a thixomolding-process injection molding machine
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Also Published As

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EP2407284B1 (en) 2014-05-07
CN101855048A (en) 2010-10-06
CN101855048B (en) 2013-11-06
WO2009056259A3 (en) 2009-08-06
EP2217414B1 (en) 2012-12-05
ES2400465T3 (en) 2013-04-10
WO2009056259A2 (en) 2009-05-07
EP2217414A2 (en) 2010-08-18
DE102007052586A1 (en) 2009-05-07

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