EP0239657A1 - Ring for rotary slitting machines - Google Patents

Ring for rotary slitting machines Download PDF

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Publication number
EP0239657A1
EP0239657A1 EP86104425A EP86104425A EP0239657A1 EP 0239657 A1 EP0239657 A1 EP 0239657A1 EP 86104425 A EP86104425 A EP 86104425A EP 86104425 A EP86104425 A EP 86104425A EP 0239657 A1 EP0239657 A1 EP 0239657A1
Authority
EP
European Patent Office
Prior art keywords
ring
radial
lower knife
ring according
knife shaft
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
EP86104425A
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German (de)
French (fr)
Other versions
EP0239657B1 (en
Inventor
Peter Wingen
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.)
Dienes Werke fuer Maschinenteile GmbH and Co KG
Original Assignee
Dienes Werke fuer Maschinenteile 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 Dienes Werke fuer Maschinenteile GmbH and Co KG filed Critical Dienes Werke fuer Maschinenteile GmbH and Co KG
Priority to DE8686104425T priority Critical patent/DE3665038D1/en
Priority to AT86104425T priority patent/ATE45536T1/en
Priority to EP86104425A priority patent/EP0239657B1/en
Priority to SE8603225A priority patent/SE8603225L/en
Publication of EP0239657A1 publication Critical patent/EP0239657A1/en
Application granted granted Critical
Publication of EP0239657B1 publication Critical patent/EP0239657B1/en
Expired legal-status Critical Current

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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
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2614—Means for mounting the cutting member
    • B26D7/2621—Means for mounting the cutting member for circular cutters

Definitions

  • the invention relates to an axially divided intermediate ring or cutting ring for the lower knife shaft in longitudinal cutting machines, the surfaces of the joints perpendicular to the end faces of the ring being congruent with one another and meanderingly eroded from a full ring and between the central radial surface sections of the two separating points of each ring a bridging the erosion gap Spacer is attached.
  • Such rings are known from DE-PS 30 42 621 and have the advantage that they are easy to replace, despite the fact that they are inexpensive to manufacture, if the cutting width program of the circular knife machine is to be changed. To do this, only the axial clamps on both ends of the lower knife shaft have to be loosened, whereupon the segments of the ring to be replaced are pushed apart axially and removed and, if necessary, replaced by another ring without the other rings having to be removed from the lower knife shaft. Finally, all rings are axially clamped against each other from the end faces of the lower knife shaft, and thereby fixed. Thus, the cutting widths can only be varied in stages, with a corresponding number of rings that are usually graduated in whole millimeters having to be kept in stock.
  • the dowel pins which are secured against unintentional falling out, for example by the centrifugal force during operation, expediently by means of overlapping retaining screws, result in an axially backlash-free coupling of the cutting ring segments, which is essential, above all for cutting sleeves, because the cutting edges formed by two ring segments must not be interrupted by joints or protrusions .
  • only one anti-rotation element per ring is required per ring, for example a radial clamping screw with a non-ferrous metal clamping plate, which prevents damage to the shaft surface when the clamping screw is tightened.
  • the ring segments 1, 2 each have two mutually diagonally opposed separating surfaces which are produced by spark erosion and which are perpendicular and perpendicular to the end faces.
  • the respective central surface sections in the circumferential direction are distanced by a grub screw 10, which was screwed in from a threaded hole of the meander in the right-hand segment 2 in FIG the left segment 1 just by the thickness of the spark erosion gap from the central radial surface section of the right segment 2.
  • the corresponding cutting edges 7 of the respective segment halves 1, 2 lie against one another without joints.
  • a dowel pin 5 is inserted into a corresponding radial fitting bore 8 formed by the adjacent ring segments in each coupling zone and then secured against falling out by the screw 6 with a washer.
  • the cutting sleeve as a whole can be continuously adjusted axially on the smooth lower knife shaft according to the desired cutting width program, whereupon the radial clamping screw 3 is tightened and the non-ferrous metal clamping plate 9 below is gently pressed onto the smooth shaft. The procedure for removing the cutting sleeve is reversed.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nonmetal Cutting Devices (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Milling Processes (AREA)
  • Shearing Machines (AREA)

Abstract

1. Axially divided intermediate ring or blade ring for the lower blade shaft in longitudinal cutting machines, in which the surfaces of the planes of separation perpendicular to the end faces of the ring are congruent with one another and are spark-eroded from a solid ring to produce a meander shape, so that the central radial portion of the separating surface is removed over part of its radial extent, and between the central radial surface portions of the two separating points of each ring which is made up of two ring segments (1, 2), there is fixed a spacer element (10) which bridges the erosion gap in the circumferential direction, characterised in that the separating points each have a radial locating pin (5) passing through them and the ring (1, 2) has at least one element (3) known per se to prevent rotation relative to the lower blade shaft.

Description

Die Erfindung betrifft einen axial geteilten Zwischenring oder Schneidring für die Untermesserwelle in Längsschneidemaschinen, wobei die zu den Stirnflächen des Ringes lotrechten Flächen der Trennfugen deckungsgleich zueinander und mäanderförmig aus einem Vollring funkenerodiert sind und zwischen den mittleren radialen Flächenabschnitten der beiden Trennstellen jedes Ringes ein den Erosionsspalt überbrückendes Distanzelement be­festigt ist.The invention relates to an axially divided intermediate ring or cutting ring for the lower knife shaft in longitudinal cutting machines, the surfaces of the joints perpendicular to the end faces of the ring being congruent with one another and meanderingly eroded from a full ring and between the central radial surface sections of the two separating points of each ring a bridging the erosion gap Spacer is attached.

Solche Ringe sind bekannt aus DE-PS 30 42 621 und haben den Vorteil, daß sie trotz wenig aufwendiger Herstellung leicht auswechselbar sind, wenn das Schnittbreitenprogramm der Kreis­messermaschine geändert werden soll. Dazu müssen nur die axi­alen Einspannungen an beiden Stirnenden der Untermesserwelle gelockert werden, worauf man die Segmente des auszuwechseln­den Ringes axial auseinander schiebt und entfernt und gegeben­enfalls durch einen anderen Ring erstzt, ohne daß die übrigen Ringe von der Untermesserwelle demontiert werden müssen. Zu­letzt werden alle Ringe axial wieder gegeneinander von den Stirnseiten der Untermesserwelle her verspannt, und dadurch fixiert. Dabei können also die Schnittbreiten nur stufenwei­se variiert werden, wobei entsprechend viele in der Dicke ge­wöhnlich nach ganzen Millimetern gestufte Ringe vorrätig ge­halten werden müssen.Such rings are known from DE-PS 30 42 621 and have the advantage that they are easy to replace, despite the fact that they are inexpensive to manufacture, if the cutting width program of the circular knife machine is to be changed. To do this, only the axial clamps on both ends of the lower knife shaft have to be loosened, whereupon the segments of the ring to be replaced are pushed apart axially and removed and, if necessary, replaced by another ring without the other rings having to be removed from the lower knife shaft. Finally, all rings are axially clamped against each other from the end faces of the lower knife shaft, and thereby fixed. Thus, the cutting widths can only be varied in stages, with a corresponding number of rings that are usually graduated in whole millimeters having to be kept in stock.

Um bei einem Ring der eingangs erwähnten Gattung diesen Nach­teil zu vermeiden, wird erfindungsgemäß die Merkmalskombina­tion des Hauptanspruches vorgeschlagen.In order to avoid this disadvantage in a ring of the type mentioned at the outset, the combination of features of the main claim is proposed according to the invention.

Es ist bekannt, ungeteilte Ringe auf der Untermesserwelle axial verschieblich und feststellbar auszuführen durch in die Naben­bohrung eingenutete Blähschläuche oder exentrische Klemmkör­per oder durch radiale Klemmschrauben. Auf axial teilbare Ringe läßt sich das nicht ohne weiteres anwenden, weil die bekannten Ringe dieser Gattung der erwähnten stirnseitigen Einspannung bedürfen, um eine ungewollte gegenseitige Axialverschiebung der Ringsegmente zu verhindern.It is known to design undivided rings on the lower knife shaft so as to be axially displaceable and lockable by inflation hoses grooved in the hub bore or eccentric clamping bodies or by radial clamping screws. This cannot easily be applied to axially separable rings, because the known rings of this type require the mentioned end-face clamping in order to prevent undesired mutual axial displacement of the ring segments.

Die gegen ungewolltes Herausfallen, etwa durch die Fliehkraft im Betrieb, zweckmäßig durch übergreifende Halteschrauben ge­sicherten Paßstifte ergeben eine axial spielfreie Kupplung der Schneidringsegmente, welche vor allem für Schneidbüchsen unerläßlich ist, weil die von je zwei Ringsegmenten gebildeten Schneidkanten nicht durch Fugen oder Überstände unterbrochen sein dürfen.The dowel pins, which are secured against unintentional falling out, for example by the centrifugal force during operation, expediently by means of overlapping retaining screws, result in an axially backlash-free coupling of the cutting ring segments, which is essential, above all for cutting sleeves, because the cutting edges formed by two ring segments must not be interrupted by joints or protrusions .

Um das noch besser zu gewährleisten, wird erfindungsgemäß zur Herstellung solcher Ringe vorgeschlagen, daß die Feinbearbei­tung auf der Drehbank erst am gehärteten aufgespannten und durch die Paßstifte gesicherten Ring erfolgt.In order to ensure this even better, it is proposed according to the invention for the production of such rings that the finishing on the lathe is carried out only on the hardened clamped ring and secured by the dowel pins.

In vorteilhafter Ausnutzung der erfindungsgemäß erreichten paßgenauen unbeweglichen Kupplung zwischen den Ringsegmenten ist je Ring nur ein Drehsicherungselement gegenüber der glat­ten Welle erforderlich, etwa eine radiale Klemmschraube mit vorgesetzter Buntmetall-Klemmplatte,die eine Beschädigung der Wellenoberfläche beim Anziehen der Klemmschraube verhindert.In an advantageous use of the precisely fitting immovable coupling between the ring segments achieved according to the invention, only one anti-rotation element per ring is required per ring, for example a radial clamping screw with a non-ferrous metal clamping plate, which prevents damage to the shaft surface when the clamping screw is tightened.

Die Erfindung wird anhand des in den Figuren schematisch dar­gestellten Ausführungsbeispiels einer Schneidbüchse weiter erläutert. Es zeigen:

  • Fig. 1 eine Stirnansicht, teilweise geschnitten,
  • Fig. 2 in vergrößertem Maßstab einen radialen Teil­schnitt durch die obere Verbindungszone und
  • Fig. 3 eine schaubildliche auseinandergezogene Teil­ansicht auf die obere Verbindungszone aus Fig. 1 und 2, teilweise geschnitten.
The invention is further explained on the basis of the exemplary embodiment of a cutting sleeve shown schematically in the figures. Show it:
  • 1 is an end view, partially in section,
  • Fig. 2 on an enlarged scale a radial partial section through the upper connection zone and
  • Fig. 3 is a partially exploded perspective view of the upper connection zone of Fig. 1 and 2, partially in section.

Die Ringsegmente 1, 2 haben je zwei einander diagonal gegen­überliegende durch Funkenerodierung erzeugte mäanderförmig und senkrecht zu den Stirnflächen verlaufende zweimal unterbrochene Trennflächen. Die in Umfangsrichtung jeweils mittleren Flächenabschnitte sind distanziert durch eine Madenschraube 10, welche aus einem Gewindeloch des Mä­anders im in Fig. 1 rechten Segment 2 mit Hilfe einere Lehre so weit eingeschraubt wurde, daß die Madenschraube 10 mit ihrer Spitze den mittleren radialen Flächenabschnitt des Mä­anders am linken Segment 1 gerade um die Dicke des Funkenero­sionsspaltes vom mittleren radialen Flächenabschnitt des rech­ten Segments 2 distanziert. Dadurch legen sich die korrespon­dierenden Schneidkanten 7 der jeweiligen Segmenthälften 1, 2 fugenlos gegeneinander. Nachdem die Schneidbüchse auf einer Untermesserwelle so zusammengeschoben wurde, wird in jeder Kupplungszone ein Paßstift 5 in eine entsprechende von den benachbarten Ringsegmenten gebildete radiale Paßbohrung 8 ge­steckt und dann durch die Schraube 6 mit Beilegscheibe gegen Herausfallen gesichert. Nun kann die Schneidbüchse als ganzes auf der glatten Untermesserwelle axial stufenlos eingestellt werden entspechend dem gewünschten Schnittbreitenprogramm, woraufhin die radiale Klemmschraube 3 angezogen und dadurch die Buntmetall-Klemmplatte 9 darunter schonend auf die glat­te Welle gedrückt wird. Zum Entfernen der Schneidbüchse wird umgekehrt verfahren.The ring segments 1, 2 each have two mutually diagonally opposed separating surfaces which are produced by spark erosion and which are perpendicular and perpendicular to the end faces. The respective central surface sections in the circumferential direction are distanced by a grub screw 10, which was screwed in from a threaded hole of the meander in the right-hand segment 2 in FIG the left segment 1 just by the thickness of the spark erosion gap from the central radial surface section of the right segment 2. As a result, the corresponding cutting edges 7 of the respective segment halves 1, 2 lie against one another without joints. After the cutting sleeve has been pushed together on a lower knife shaft, a dowel pin 5 is inserted into a corresponding radial fitting bore 8 formed by the adjacent ring segments in each coupling zone and then secured against falling out by the screw 6 with a washer. Now the cutting sleeve as a whole can be continuously adjusted axially on the smooth lower knife shaft according to the desired cutting width program, whereupon the radial clamping screw 3 is tightened and the non-ferrous metal clamping plate 9 below is gently pressed onto the smooth shaft. The procedure for removing the cutting sleeve is reversed.

Claims (5)

1. Axial geteilter Zwischenring oder Schneidring für die Un­termesserwelle in Längsschneidemaschinen, wobei die zu den Stirnflächen des Ringes lotrechten Flächen der Trenn­fugen deckungsgleich zueinander und mäanderförmig aus einem Vollring funkenerodiert sind und zwischen den mitt­leren radialen Flächenabschnitten der beiden Trennstellen jedes Ringes ein den Erosionsspalt überbrückendes Distanz­element befestigt ist, dadurch gekennzeichnet, daß die Trennstellen von je einem radialen Paßstift (5) durch­setzt sind und der Ring (1, 2) wenigstens ein an sich be­kanntes Drehsicherungselement (3) gegenüber der Untermes­serwelle aufweist.1. Axially divided intermediate ring or cutting ring for the lower knife shaft in longitudinal cutting machines, the surfaces of the joints perpendicular to the end faces of the ring being congruent with one another and meanderingly eroded from a solid ring and a spacer element bridging the erosion gap is fastened between the central radial surface sections of the two separating points of each ring is characterized in that the separation points are penetrated by a radial dowel pin (5) and the ring (1, 2) has at least one known anti-rotation element (3) with respect to the lower knife shaft. 2. Ring nach Anspruch 1, dadurch gekennzeichnet, daß das Drehsicherungselement (3) als Klemmschraube mit Buntme­tall-Klemmplatte (9) ausgebildet ist.2. Ring according to claim 1, characterized in that the anti-rotation element (3) is designed as a clamping screw with non-ferrous metal clamping plate (9). 3. Ring nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Paßstift (5) durch eine ihn übergreifende Halteschrau­be (6) gesichert ist.3. Ring according to claim 1 or 2, characterized in that the dowel pin (5) is secured by an overlapping retaining screw (6). 4. Ring nach einem der vorhergehenden Ansprüche, dadurch ge­kennzeichnet, daß das Distanzelement eine Madenschraube (10) ist, teilweise in ein Gewindeloch des mittleren ra­dialen Flächenabschnittes eines Segments (2) geschraubt.4. Ring according to one of the preceding claims, characterized in that the spacer element is a grub screw (10), partially screwed into a threaded hole of the central radial surface section of a segment (2). 5. Verfahren zur Herstellung eines Ringes nach einem der vor­hergehenden Ansprüche, dadurch gekennzeichnet, daß die Feinbearbeitung am gehärteten aufgespannten und durch Paß­stifte gesicherten Vollring erfolgt.5. A method for producing a ring according to one of the preceding claims, characterized in that the fine machining is carried out on the hardened clamped full ring secured by dowel pins.
EP86104425A 1986-04-01 1986-04-01 Ring for rotary slitting machines Expired EP0239657B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE8686104425T DE3665038D1 (en) 1986-04-01 1986-04-01 Ring for rotary slitting machines
AT86104425T ATE45536T1 (en) 1986-04-01 1986-04-01 RING FOR THE BOTTOM KNIFE IN SLITTING MACHINES.
EP86104425A EP0239657B1 (en) 1986-04-01 1986-04-01 Ring for rotary slitting machines
SE8603225A SE8603225L (en) 1986-04-01 1986-07-25 ROLLER SCREW MACHINE RING

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP86104425A EP0239657B1 (en) 1986-04-01 1986-04-01 Ring for rotary slitting machines

Publications (2)

Publication Number Publication Date
EP0239657A1 true EP0239657A1 (en) 1987-10-07
EP0239657B1 EP0239657B1 (en) 1989-08-16

Family

ID=8195030

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86104425A Expired EP0239657B1 (en) 1986-04-01 1986-04-01 Ring for rotary slitting machines

Country Status (4)

Country Link
EP (1) EP0239657B1 (en)
AT (1) ATE45536T1 (en)
DE (1) DE3665038D1 (en)
SE (1) SE8603225L (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2113347A1 (en) * 2008-05-02 2009-11-04 WIFAG Maschinenfabrik AG Divided knife for a lower knife shaft in a slitter
DE102009011330A1 (en) 2009-03-05 2010-09-16 H. Schönenberger GmbH Round cutter for lower cutter shaft of longitudinal cutting device for cutting webs from paper, has chuck jaw integrally formed with base body, and locking unit designed to flexibly prestress chuck jaw in direction of cutter block
DE102009011331A1 (en) 2009-03-05 2010-09-16 H. Schönenberger GmbH Axially split ring knife for use in longitudinal cutting device utilized in e.g. paper industry to longitudinally cut driving web, has sectionally curved insertion area held in receiver area, when shells are joined in tolerance-free manner

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2083414A (en) * 1936-06-06 1937-06-08 Theodore A Wettig Rail chuck for machine tools
US2491976A (en) * 1946-01-17 1949-12-20 Edward C Hauser Detachable wheel
DE1250254B (en) * 1967-09-14 Jagenberg Werke A G , Dusseldorf Intermediate ring for knife rollers on longitudinal cutting machines
GB1245925A (en) * 1967-09-29 1971-09-15 Masson Scott Thrissell Eng Ltd Improvements in or relating to the fitting of rings round cylindrical objects
FR2211301A1 (en) * 1972-12-22 1974-07-19 Simon Ltd Henry
US3850069A (en) * 1974-01-21 1974-11-26 S & S Corrugated Paper Mach Mounting of rotary split slitting knives
DE3042621A1 (en) * 1980-11-12 1982-05-27 Dienes Werke für Maschinenteile GmbH & Co KG, 5063 Overath Axially split ring for cutting machine blade shaft - has separating slots formed in complete rings by spark erosion machining

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1250254B (en) * 1967-09-14 Jagenberg Werke A G , Dusseldorf Intermediate ring for knife rollers on longitudinal cutting machines
US2083414A (en) * 1936-06-06 1937-06-08 Theodore A Wettig Rail chuck for machine tools
US2491976A (en) * 1946-01-17 1949-12-20 Edward C Hauser Detachable wheel
GB1245925A (en) * 1967-09-29 1971-09-15 Masson Scott Thrissell Eng Ltd Improvements in or relating to the fitting of rings round cylindrical objects
FR2211301A1 (en) * 1972-12-22 1974-07-19 Simon Ltd Henry
US3850069A (en) * 1974-01-21 1974-11-26 S & S Corrugated Paper Mach Mounting of rotary split slitting knives
DE3042621A1 (en) * 1980-11-12 1982-05-27 Dienes Werke für Maschinenteile GmbH & Co KG, 5063 Overath Axially split ring for cutting machine blade shaft - has separating slots formed in complete rings by spark erosion machining

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2113347A1 (en) * 2008-05-02 2009-11-04 WIFAG Maschinenfabrik AG Divided knife for a lower knife shaft in a slitter
DE102009011330A1 (en) 2009-03-05 2010-09-16 H. Schönenberger GmbH Round cutter for lower cutter shaft of longitudinal cutting device for cutting webs from paper, has chuck jaw integrally formed with base body, and locking unit designed to flexibly prestress chuck jaw in direction of cutter block
DE102009011331A1 (en) 2009-03-05 2010-09-16 H. Schönenberger GmbH Axially split ring knife for use in longitudinal cutting device utilized in e.g. paper industry to longitudinally cut driving web, has sectionally curved insertion area held in receiver area, when shells are joined in tolerance-free manner

Also Published As

Publication number Publication date
DE3665038D1 (en) 1989-09-21
SE8603225D0 (en) 1986-07-25
SE8603225L (en) 1987-10-02
EP0239657B1 (en) 1989-08-16
ATE45536T1 (en) 1989-09-15

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