EP2217414B1 - Dispositif de coupe - Google Patents

Dispositif de coupe Download PDF

Info

Publication number
EP2217414B1
EP2217414B1 EP08844656A EP08844656A EP2217414B1 EP 2217414 B1 EP2217414 B1 EP 2217414B1 EP 08844656 A EP08844656 A EP 08844656A EP 08844656 A EP08844656 A EP 08844656A EP 2217414 B1 EP2217414 B1 EP 2217414B1
Authority
EP
European Patent Office
Prior art keywords
unit
cutting
converter according
converter
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.)
Not-in-force
Application number
EP08844656A
Other languages
German (de)
English (en)
Other versions
EP2217414A2 (fr
Inventor
Richard Brüssel
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.)
Schmidt und Heinzmann GmbH and Co KG
Original Assignee
Schmidt und Heinzmann GmbH and Co KG
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 Schmidt und Heinzmann GmbH and Co KG filed Critical Schmidt und Heinzmann GmbH and Co KG
Priority to EP11004921.0A priority Critical patent/EP2407284B1/fr
Publication of EP2217414A2 publication Critical patent/EP2217414A2/fr
Application granted granted Critical
Publication of EP2217414B1 publication Critical patent/EP2217414B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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 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.
  • WO 2004/108998 forms the Gumdlage for the preamble of claim 1.
  • the invention which is defined in claim 1, is based on a converter cutting device having at least one cutting unit provided for rotation and at least one compensating weight unit which is at least partially provided for compensating a centrifugal force acting on the cutting unit during operation.
  • the converter cutting device comprises a clutch which is intended to couple the cutting unit and the balance weight unit, wherein the balance weight unit forms a second cutting edge next to a first cutting edge of a first cutting means.
  • 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, the term “intended” should be understood to mean in particular specially equipped and / or designed.
  • clearance angles may preferably be introduced directly into the cutting means, i. in particular be molded and / or sanded.
  • centrifugal forces and / or imbalances can be advantageously compensated by a corresponding inventive design and the cutting unit can be advantageously secured or held, in particular if the balance weight unit is intended to compensate for at least a majority of the centrifugal force acting on the cutting unit, i. that in operation acts on the balance weight unit, a centrifugal force which is at least 50% of the force acting on the cutting unit centrifugal force and this is opposite.
  • the balance weight unit may be coupled via third components or advantageously directly with a component of the cutting unit, whereby a load of third components can be at least largely advantageously avoided.
  • 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 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 be understood to mean, in particular, a coupling by means of which at least one essential component, ie 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 especially in operation is included.
  • the cutting unit for cutting edge renewal i. especially for regrinding and / or separating, is provided, which costs can be saved.
  • Converter cutting device comprises a centrifugal force adjustment unit.
  • a "centrifugal force adjusting unit” should be understood to mean, in particular, a unit which is intended to set a centrifugal force acting either in the direction of a centrifugal force of the cutting unit and / or in the direction of a centrifugal force of the compensating weight unit, wherein the setting unit moves from one to the cutting unit and / or 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 unit is advantageously formed by a combinsseinstellawa, by means of which a weight is adjustable, and / or by a unit by means of a position of a weight for adjusting a centrifugal force is variable.
  • the setting unit is at least partially integral with a fastening unit, additional Components, space, installation costs 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 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 ,
  • 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 according to the invention 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.
  • 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 in the groove-shaped recess 30a in the circumferential direction positively and in the radial direction between the cover plate 28a and the end face of the cutting bearing unit 22a fixed non-positively.
  • the nut 32a via a washer 64a on the cover plate 28a acts, is screwed onto a screwed into the cutting bearing unit 22a screw 34a with a hexagon socket 36a, so that in a distortion of the cover plate 28a and the cutting means 26a with the front side of the cutting bearing unit 22a, a torque balance can be achieved by the screw 34a held with a hexagon wrench and the nut 32a 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 form-locking coupling 16a is formed by hook-shaped extensions 40a, 42a, which are integrally formed on the cover plate 28a and on the balance weight unit 12a.
  • 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 a screw 44a that fits over the balance weight unit 12a is coupled, clamped on the front side of the cutting bearing unit 22a.
  • 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 ).
  • a plurality of fiber outlets 46a, 48a formed by nozzle units are provided in the direction of rotation, and in each case a fixed fiber outlet 46a, 48a is preferably arranged in front of the cutting unit 60a, 62a, from which continuous fibers provided for cutting during operation are applied.
  • the fibers are preferably 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 ° to a parallel to the axis of rotation 66a, discharged from the fiber outlets 46a, 48a.
  • the converter has a compressed air unit, which is provided to a compressed air flow through the fiber outlets 46a, 48a while 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 inventive 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 the 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, which are integrally formed or from a Component are formed, of a two cutting edges 24 b, 24 b 'forming Cutting means 26b.
  • 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. 3 is indicated.

Landscapes

  • 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)

Claims (13)

  1. Convertisseur pour convertir une ou plusieurs fibres en fibres discontinues, comprenant au moins une unité de support de coupe (22a) pouvant être entraînée en rotation et un dispositif de coupe du convertisseur, qui comprend au moins une unité de coupe (10a ; 10b) prévue pour tourner et au moins une unité de contrepoids (12a ; 12b), qui est prévue au moins en partie pour équilibrer une force centrifuge (14a ; 14b) agissant pendant le fonctionnement sur l'unité de coupe (10a ; 10b), le dispositif de coupe du convertisseur comprenant un accouplement (16a ; 16b) prévu pour accoupler l'unité de coupe (10a ; 10b) et l'unité de contrepoids (12a ; 12b), l'unité de contrepoids (12b) formant, en plus d'une première arête de coupe (24b) d'un premier moyen de coupe (26b), une deuxième arête de coupe (24b'),
    caractérisé par
    au moins une unité de coupe fixe (60a, 62a) formant une contre-lame.
  2. Convertisseur selon la revendication 1,
    caractérisé en ce que
    l'unité de contrepoids (12a ; 12b) est prévue pour équilibrer au moins une majeure partie de la force centrifuge (14a ; 14b) agissant sur l'unité de coupe (10a ; 10b).
  3. Convertisseur selon la revendication 1 ou 2,
    caractérisé en ce que
    l'unité de contrepoids (12a ; 12b) est couplée directement à un composant de l'unité de coupe (10a ; 10b).
  4. Convertisseur selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'unité de contrepoids (12a ; 12b) est formée au moins en partie d'un matériau correspondant à l'unité de coupe (10a ; 10b).
  5. Convertisseur selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'unité de contrepoids (12b) forme un composant de l'unité de coupe (10b).
  6. Convertisseur selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'accouplement (16a ; 16b) est formé au moins en partie d'un accouplement par engagement par correspondance géométrique.
  7. Convertisseur selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'unité de coupe (10a ; 10b) est prévue pour permettre un renouvellement de l'arête de coupe.
  8. Convertisseur selon l'une quelconque des revendications précédentes,
    caractérisé par
    au moins une unité d'ajustement de la force centrifuge (18a), qui est prévue pour ajuster une force centrifuge qui agit dans la direction d'une force centrifuge de l'unité de coupe (10a) et/ou dans la direction d'une force centrifuge de l'unité de contrepoids (12a).
  9. Convertisseur selon la revendication 8,
    caractérisé en ce que
    l'unité d'ajustement de la force centrifuge (18a) est formée par une unité d'ajustement du poids au moyen de laquelle un poids peut être ajusté, et/ou par une unité au moyen de laquelle une position d'un poids peut être modifiée pour ajuster une force centrifuge.
  10. Convertisseur selon la revendication 8 ou 9,
    caractérisé en ce que
    l'unité d'ajustement de la force centrifuge (18a) est réalisée au moins en partie d'une seule pièce avec une unité de fixation.
  11. Convertisseur selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'unité de coupe (10a) présente au moins un trou oblong (20a), au moyen duquel peut être effectuée une compensation de longueur dans le cas d'un renouvellement de l'arête de coupe.
  12. Convertisseur selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'unité de coupe (10a ; 10b) est formée au moins en partie d'un diamant polycristallin.
  13. Convertisseur selon la revendication 1,
    caractérisé par
    au moins une deuxième unité de support de coupe (22a') pouvant être entraînée en rotation.
EP08844656A 2007-11-03 2008-10-24 Dispositif de coupe Not-in-force EP2217414B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP11004921.0A EP2407284B1 (fr) 2007-11-03 2008-10-24 Dispositif de coupe de convertisseur

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200710052586 DE102007052586A1 (de) 2007-11-03 2007-11-03 Schneidvorrichtung
PCT/EP2008/009009 WO2009056259A2 (fr) 2007-11-03 2008-10-24 Dispositif de coupe

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP11004921.0A Division EP2407284B1 (fr) 2007-11-03 2008-10-24 Dispositif de coupe de convertisseur
EP11004921.0 Division-Into 2011-06-16

Publications (2)

Publication Number Publication Date
EP2217414A2 EP2217414A2 (fr) 2010-08-18
EP2217414B1 true EP2217414B1 (fr) 2012-12-05

Family

ID=40280675

Family Applications (2)

Application Number Title Priority Date Filing Date
EP08844656A Not-in-force EP2217414B1 (fr) 2007-11-03 2008-10-24 Dispositif de coupe
EP11004921.0A Not-in-force EP2407284B1 (fr) 2007-11-03 2008-10-24 Dispositif de coupe de convertisseur

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP11004921.0A Not-in-force EP2407284B1 (fr) 2007-11-03 2008-10-24 Dispositif de coupe de convertisseur

Country Status (5)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9308659B2 (en) 2010-09-16 2016-04-12 Schmidt & Heinzmann Gmbh & Co. Kg Fiber cutting device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010002271B4 (de) 2010-02-24 2012-05-31 Mag Ias Gmbh Schneidvorrichtung zum Scherschneiden von Fasersträngen
DE202010017556U1 (de) 2010-09-16 2012-01-30 Schmidt & Heinzmann Gmbh & Co. Kg Faserschneidvorrichtung
DE102015109712A1 (de) 2015-06-17 2016-12-22 Schmidt & Heinzmann Gmbh & Co. Kg Konverterschneidvorrichtung
CN113737320B (zh) * 2021-08-30 2022-10-11 上晋科技化纤(平湖)有限公司 一种高稳定性化纤设备切丝机

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BE505323A (fr) * 1950-11-22 1900-01-01
US3089194A (en) * 1955-10-10 1963-05-14 Phillips Petroleum Co Process and aparatus for treating plastic material
US3596319A (en) * 1968-07-22 1971-08-03 Du Pont Foam filament cutter
JPS5429613B2 (fr) * 1973-03-22 1979-09-25
CN87201214U (zh) * 1987-04-06 1987-12-02 无锡市化工研究设计院 高速旋转剪切式粉碎机
CH678027A5 (fr) * 1988-09-02 1991-07-31 Krupp Widia Schweiz Ag
DE4240232C2 (de) * 1992-11-30 1995-04-27 Bhs Corr Masch & Anlagenbau Querschneider für Warenbahnen, insbesondere für eine Wellpappenbahn
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JP3375545B2 (ja) * 1998-07-15 2003-02-10 日本サーモケミカル株式会社 チクソモールディング法射出成形機用チップ製造方法及び装置
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FR2790654B1 (fr) * 1999-03-10 2001-04-27 Robot Coupe Sa Couteau rotatif
JP4369897B2 (ja) * 2005-05-19 2009-11-25 株式会社エヌケージー 回転切断装置
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9308659B2 (en) 2010-09-16 2016-04-12 Schmidt & Heinzmann Gmbh & Co. Kg Fiber cutting device

Also Published As

Publication number Publication date
EP2407284B1 (fr) 2014-05-07
CN101855048A (zh) 2010-10-06
EP2407284A1 (fr) 2012-01-18
CN101855048B (zh) 2013-11-06
WO2009056259A3 (fr) 2009-08-06
ES2400465T3 (es) 2013-04-10
WO2009056259A2 (fr) 2009-05-07
EP2217414A2 (fr) 2010-08-18
DE102007052586A1 (de) 2009-05-07

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