EP0433583A2 - Device for positioning carriages or the like along guides - Google Patents

Device for positioning carriages or the like along guides Download PDF

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Publication number
EP0433583A2
EP0433583A2 EP90119155A EP90119155A EP0433583A2 EP 0433583 A2 EP0433583 A2 EP 0433583A2 EP 90119155 A EP90119155 A EP 90119155A EP 90119155 A EP90119155 A EP 90119155A EP 0433583 A2 EP0433583 A2 EP 0433583A2
Authority
EP
European Patent Office
Prior art keywords
coupling
slides
carriage
guides
piston
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
EP90119155A
Other languages
German (de)
French (fr)
Other versions
EP0433583B1 (en
EP0433583A3 (en
Inventor
Ernst-Günther Urban
Heiko-Christian Knoll
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.)
Jagenberg AG
Original Assignee
Jagenberg AG
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Filing date
Publication date
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Publication of EP0433583A2 publication Critical patent/EP0433583A2/en
Publication of EP0433583A3 publication Critical patent/EP0433583A3/en
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Publication of EP0433583B1 publication Critical patent/EP0433583B1/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
    • 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
    • B26D7/2628—Means for adjusting the position of the cutting member
    • B26D7/2635—Means for adjusting the position of the cutting member for circular cutters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/768—Rotatable disc tool pair or tool and carrier
    • Y10T83/7809—Tool pair comprises rotatable tools
    • Y10T83/7822—Tool pair axially shiftable
    • Y10T83/7826—With shifting mechanism for at least one element of tool pair
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/768—Rotatable disc tool pair or tool and carrier
    • Y10T83/7809—Tool pair comprises rotatable tools
    • Y10T83/7847—Tool element axially shiftable
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/768—Rotatable disc tool pair or tool and carrier
    • Y10T83/7872—Tool element mounted for adjustment
    • Y10T83/7876—Plural, axially spaced tool elements

Definitions

  • the invention relates to a device for positioning carriages or the like that can be moved along guides on processing machines for sheet-like or sheet-like materials.
  • Processing machines for sheet or sheet materials e.g. for paper or cardboard webs, have a large number of elements which, depending on the format, have to be positioned transversely to the running direction of the webs or sheets.
  • Such elements are e.g. the paired circular knives of a slitter that divides a material web into individual webs.
  • Longitudinal cutting devices of this type are components of winding or cross cutting machines which produce individual narrower winding rolls from a wide material web or individual sheets by additional cross cutting.
  • DE-AS 21 42 117 discloses a cutting device of the generic type with knives arranged in pairs and mounted on slides, in which the knife slides on one side have a common drive device designed as a circumferential belt to have.
  • Each knife carriage is assigned a locking member that can be moved in two positions, which enables coupling with the drive device as well as fixing the knife on a guide.
  • the locking member is designed as a double-acting piston.
  • the carriage can only be coupled to one strand of the circulating belt, so that the belt must change the direction of rotation for adjustment in both directions. This requires complex control of the belt drive, and the adjustment times are also extended because different slides cannot be positioned in opposite directions at the same time.
  • the invention has for its object to provide a generic device that allows simultaneous positioning of slides in both adjustment directions in a structurally simple manner.
  • the revolving belt causing the adjustment of the individual slides need only be driven in one direction. Due to the possibility of alternately coupling a carriage to both runs of the belt, it can be easily adjusted in both directions without changing the belt movement. It is also possible to simultaneously move two slides mounted on a common guide in opposite directions in order to keep the adjustment time as short as possible.
  • the device according to the invention is used to position the circular knives of a slitting device.
  • a material web for. B. a paper or cardboard web, divided into individual webs, which are then wound up into winding rolls or divided into individual sheets by cross cutting.
  • processing machines for sheet or sheet materials are e.g. B. the positioning of the winding stations of a winding machine, - The positioning of the elements determining or dependent on the landscape format on cross-cutting machines that produce individual sheets from webs and then stack them.
  • these elements include the transport elements and all elements acting on the long sides of a sheet, eg. B. the shaking plates, and the transport elements of the offshoot.
  • the longitudinal cutting device shown in FIG. 1 has several pairs of circular knives that can be adjusted transversely to the material web 1, each of which consists of a lower knife 2 and an upper knife 3 consist.
  • the lower cutters 2 and the upper cutters 3 are each rotatably mounted on receiving means 4 and 5 of carriages 6 and 7, respectively.
  • the carriages 6 and 7 are fastened to crossbars 10 and 11 so as to be movable transversely to the material web along rod-shaped or similar guides 8 and 9.
  • Adjustment devices 12, 13 are used to position the knife slides 6, 7, the structure of which is shown in more detail in FIG. 3 with reference to the lower knife adjustment device 12.
  • the upper knife adjustment device 13 is constructed accordingly.
  • the adjusting device 12 contains a double-acting, pneumatic piston-cylinder unit, the cylinder 14 of which is fastened to the slide 6 between the bearings 15 of the guide elements 8.
  • the two piston ends 16, 17 can each be pressed against a run 18, 19 of a rotating belt driven by a motor 20, which extends transversely to the material web over the adjustment path parallel to the guide elements 8.
  • the two runs 18, 19 of the band each rest on their sides facing away from the piston ends 16, 17 on projections 21, 22 of the carriage 6, so that the carriage 6 can be alternately clamped to one of the two runs 18, 19 by means of the piston ends 16, 17 is.
  • the two cylinder spaces 24, 25 separated by a seal 23 can be acted upon alternately via lines 26, 27 with compressed air.
  • a further pressure chamber 28 On the side of the piston-cylinder unit facing the crossbar 10 there is a further pressure chamber 28 with a suitable, downwardly movable clamping piston 29 with which the carriage 6 is clamped to the crossbar 10 via line 30 when the pressure chamber 28 is pressurized with compressed air and can be locked in the working position on the guides 8.
  • valves 31, 32 with which the movements of the pistons 16, 17, 29 are controlled by a control device, not shown, are shown only schematically in FIG. 3.
  • electromagnetically actuated pistons can also be used to clamp the carriages 6, 7 to the respective run 18, 19 and to lock them on the crossbar 10.
  • an angle encoder 33 is attached to each lower knife carriage 6 and upper knife carriage 7 for determining the position (FIG. 1).
  • the angle encoders 33 have a pinion 34 which is connected to a rotatable signal disk and which meshes with a toothed rack 35 which is fixedly connected to the crossbar 10 or 11.
  • the angle encoder 33 When the carriages 6 and 7 are moved along the crossmember 10 and 11, the angle encoder 33 generates a number of counting pulses proportional to the displacement, from which the control device calculates the respective carriage position, starting from a known starting position. The adjustment of each individual slide 6, 7 can thus be controlled by the control device on the basis of the actual positions and the new desired positions.
  • angle encoder 33 instead of the angle encoder 33, other absolute or incremental measuring measuring devices can also be used. It is also possible to position only the slides on one side, preferably the lower knife slides 6, absolutely or incrementally and then to move the associated slides on the other side, preferably the upper knife slides 7, relative to the slides that have already been positioned. The relative movement then takes place with the aid of known proximity sensors (e.g. Hall generators), with which a distance between two associated slides 6, 7 can be determined.
  • proximity sensors e.g. Hall generators
  • the belt 18, 19 is driven by the motor 20 permanently at a constant speed in one direction of rotation (in FIG. 2 in Clockwise direction of arrow 37).
  • the strand 18 of the belt in FIG. 2 moves to the right, the strand 19 to the left. 3, the strand 19 moves into the paper plane, the strand 18 out of it.
  • the carriages 6, 7 are clamped on the crossbeams 10, 11.
  • compressed air is introduced into the pressure chamber 28 by the valve 32, so that the clamping piston 29 presses against the crossmember 10 or 11.
  • the cylinder spaces 24, 25 are vented, so that neither the piston 16 nor the piston 17 bears against the respective run 18 or 19 of the belt.
  • the pressure chamber 28 is first vented, so that the clamping connection to the cross member 10, 11 is released.
  • the other cylinder space becomes or remains vented.
  • the carriages 6, 7 can thus be moved in both directions without changing the direction of rotation of the belt. It is also possible to move individual carriages 6, 7 in one direction and other carriages 6, 7 in the other direction at the same time in order to keep the adjustment times as short as possible.

Abstract

On processing machines for web- or sheet-like materials, devices for positioning carriages along guides are known, which have as drive means a revolving band extending parallel to the guides. Each carriage has a movable element for coupling to the drive means. <??>According to the invention, the coupling element is arranged between the two sides (18, 19) of the band and it contains means (piston ends 16, 17) for alternate coupling to both sides (18, 19). Simultaneous positioning of carriages (6, 7) in both adjustment directions is thereby made possible in a structurally simple manner. <IMAGE>

Description

Die Erfindung betrifft eine Vorrichtung zum Positionieren von entlang Führungen bewegbaren Schlitten oder dergleichen an Verarbeitungsmaschinen für bahn- oder bogenförmige Materialien gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to a device for positioning carriages or the like that can be moved along guides on processing machines for sheet-like or sheet-like materials.

Verarbeitungsmaschinen für bahn- oder bogenförmige Materialien, z.B. für Papier- oder Kartonbahnen, weisen eine Vielzahl von Elementen auf, die formatabhängig quer zur Laufrichtung der Bahnen oder Bögen positioniert werden müssen. Derartige Elemente sind z.B. die paarweise angeordneten Kreismesser einer Längsschneidevorrichtung, die eine Materialbahn in Einzelbahnen aufteilt. Derartige Längsschneidevorrichtungen sind Bestandteile von Aufwickel- oder Querschneidemaschinen, die aus einer breiten Materialbahn einzelne schmalere Wickelrollen oder durch zusätzliches Querschneiden einzelne Bögen herstellen.Processing machines for sheet or sheet materials, e.g. for paper or cardboard webs, have a large number of elements which, depending on the format, have to be positioned transversely to the running direction of the webs or sheets. Such elements are e.g. the paired circular knives of a slitter that divides a material web into individual webs. Longitudinal cutting devices of this type are components of winding or cross cutting machines which produce individual narrower winding rolls from a wide material web or individual sheets by additional cross cutting.

Aus der DE-AS 21 42 117 ist eine gattungsgemäße Schneidvorrichtung mit paarweise angeordneten, auf Schlitten gelagerten Messern bekannt, bei der die Messerschlitten einer Seite eine als umlaufendes Band ausgebildete gemeinsame Antriebseinrichtung haben. Jedem Messerschlitten ist ein in zwei Stellungen bewegbares Arretierglied zugeordnet, das sowohl ein Kuppeln mit der Antriebseinrichtung als auch das Festlegen des Messers an einer Führung ermöglicht. Das Arretierglied ist als doppelt wirkender Kolben ausgebildet.DE-AS 21 42 117 discloses a cutting device of the generic type with knives arranged in pairs and mounted on slides, in which the knife slides on one side have a common drive device designed as a circumferential belt to have. Each knife carriage is assigned a locking member that can be moved in two positions, which enables coupling with the drive device as well as fixing the knife on a guide. The locking member is designed as a double-acting piston.

Bei dieser Vorrichtung können die Schlitten nur an einen Trum des umlaufenden Bandes angekuppelt werden, so daß das Band zum Verstellen in beide Richtungen jeweils den Umlaufsinn ändern muß. Dies erfordert eine aufwendige Steuerung des Bandantriebs, zusätzlich sind die Verstellzeiten verlängert, da nicht gleichzeitig verschiedene Schlitten in entgegengesetzte Richtungen positioniert werden können.In this device, the carriage can only be coupled to one strand of the circulating belt, so that the belt must change the direction of rotation for adjustment in both directions. This requires complex control of the belt drive, and the adjustment times are also extended because different slides cannot be positioned in opposite directions at the same time.

Der Erfindung liegt die Aufgabe zugrunde, eine gattungsgemäße Vorrichtung zu schaffen, die auf konstruktiv einfache Weise eine gleichzeitige Positionierung von Schlitten in beide Verstellrichtungen ermöglicht.The invention has for its object to provide a generic device that allows simultaneous positioning of slides in both adjustment directions in a structurally simple manner.

Diese Aufgabe wird mit den Merkmalen des Anspruchs 1 gelöst.This object is achieved with the features of claim 1.

Nach der Erfindung braucht das die Verstellung der einzelnen Schlitten bewirkende umlaufende Band nur in einer Richtung angetrieben zu werden. Durch die Möglichkeit, einen Schlitten wechselweise an beide Trums des Bandes anzukuppeln, kann dieser auf einfache Weise ohne eine Änderung der Bandbewegung in beide Richtungen verstellt werden. Gleichfalls ist es möglich, zwei an einer gemeinsamen Führung gelagerte Schlitten gleichzeitig in entgegengesetzte Richtungen zu bewegen, um die Verstellzeit möglichst kurz zu halten.According to the invention, the revolving belt causing the adjustment of the individual slides need only be driven in one direction. Due to the possibility of alternately coupling a carriage to both runs of the belt, it can be easily adjusted in both directions without changing the belt movement. It is also possible to simultaneously move two slides mounted on a common guide in opposite directions in order to keep the adjustment time as short as possible.

Die Unteransprüche enthalten bevorzugte, da besonders vorteilhafte Ausgestaltungen der Erfindung.The subclaims contain preferred, since particularly advantageous, embodiments of the invention.

Während Patentanspruch 2 eine konstruktiv vorteilhafte Ausgestaltung des Ankuppelelementes enthält, ermöglichen die Merkmale der Ansprüche 3 und 4 auf vorteilhafte Weise die Arretierung eines Schlittens in der Arbeitsposition.While claim 2 contains a structurally advantageous embodiment of the coupling element, the features of claims 3 and 4 advantageously allow the locking of a carriage in the working position.

Die Ansprüche 6 und 7 enthalten Ausgestaltungen der Erfindung, mit denen sich die Positionierung der einzelnen Schlitten mittels einer Steuereinrichtung exakt durchführen läßt.

  • Fig. 1 zeigt in schematischer Darstellung eine Seitenansicht einer erfindungsgemäßen Vorrichtung,
  • Fig. 2 zeigt eine Ansicht in Richtung des Pfeils x in Fig. 1,
  • Fig. 3 zeigt in vergrößerter Darstellung einen teilweisen geschnittenen Ausschnitt von Fig. 1.
Claims 6 and 7 contain embodiments of the invention with which the positioning of the individual carriages can be carried out exactly by means of a control device.
  • 1 shows a schematic side view of a device according to the invention,
  • 2 shows a view in the direction of arrow x in FIG. 1,
  • FIG. 3 shows an enlarged illustration of a partially cut section from FIG. 1.

Im nachfolgend beschriebenen Ausführungsbeispiel wird die Vorrichtung nach der Erfindung zum Positionieren der Kreismesser einer Längsschneidevorrichtung eingesetzt. Mit den paarweise angeordneten Kreismessern wird eine Materialbahn, z. B. eine Papier- oder Kartonbahn, in Einzelbahnen aufgeteilt, die anschließend zu Wickelrollen aufgewickelt oder durch Querschneiden in einzelne Bögen aufgeteilt werden.In the exemplary embodiment described below, the device according to the invention is used to position the circular knives of a slitting device. With the circular knives arranged in pairs, a material web, for. B. a paper or cardboard web, divided into individual webs, which are then wound up into winding rolls or divided into individual sheets by cross cutting.

Andere bevorzugte Einsatzmöglichkeiten an Verarbeitungsmaschinen für bahn- oder bogenförmige Materialien sind z. B.
- die Positionierung der Wickelstationen einer Aufwickelmaschine,
- die Positionierung der das Querformat bestimmenden oder von diesem abhängigen Elemente an Querschneidemaschinen, die aus Bahnen einzelne Bögen herstellen und anschließend abstapeln. Zu diesen Elementen gehören neben den vorhin aufgeführten Längsmessern die Transportelemente und alle auf die Längsseiten eines Bogens einwirkenden Elemente, z. B. die Schüttelbleche, und die Transportelemente des Ablegers.Other preferred uses of processing machines for sheet or sheet materials are e.g. B.
the positioning of the winding stations of a winding machine,
- The positioning of the elements determining or dependent on the landscape format on cross-cutting machines that produce individual sheets from webs and then stack them. In addition to the longitudinal knives listed above, these elements include the transport elements and all elements acting on the long sides of a sheet, eg. B. the shaking plates, and the transport elements of the offshoot.

Die in Fig. 1 gezeigte Längsschneideeinrichtung weist mehrere, quer zur Materialbahn 1 verstellbare Kreismesserpaare auf, die jeweils aus einem Untermesser 2 und einem Obermesser 3 bestehen. Die Untermesser 2 und die Obermesser 3 sind jeweils an Aufnahmemitteln 4 bzw. 5 von Schlitten 6 bzw. 7 drehbar gelagert. Die Schlitten 6 bzw. 7 sind quer zur Materialbahn entlang stabförmiger oder ähnlicher Führungen 8 bzw. 9 bewegbar an Quertraversen 10 bzw. 11 befestigt.The longitudinal cutting device shown in FIG. 1 has several pairs of circular knives that can be adjusted transversely to the material web 1, each of which consists of a lower knife 2 and an upper knife 3 consist. The lower cutters 2 and the upper cutters 3 are each rotatably mounted on receiving means 4 and 5 of carriages 6 and 7, respectively. The carriages 6 and 7 are fastened to crossbars 10 and 11 so as to be movable transversely to the material web along rod-shaped or similar guides 8 and 9.

Zum Positionieren der Messerschlitten 6, 7 dienen Verstelleinrichtungen 12, 13, deren Aufbau in Fig. 3 anhand der Untermesser-Verstelleinrichtung 12 detaillierter gezeigt wird. Die Obermesser-Verstelleinrichtung 13 ist entsprechend aufgebaut.Adjustment devices 12, 13 are used to position the knife slides 6, 7, the structure of which is shown in more detail in FIG. 3 with reference to the lower knife adjustment device 12. The upper knife adjustment device 13 is constructed accordingly.

Die Verstelleinrichtung 12 enthält als Ankuppelelement eine doppelt wirkende, pneumatische Kolben-Zylinder-Einheit, deren Zylinder 14 an dem Schlitten 6 zwischen den Lagern 15 der Führungselemente 8 befestigt ist. Die beiden Kolbenenden 16, 17 sind jeweils gegen einen Trum 18, 19 eines von einem Motor 20 angetriebenen, umlaufenden Bandes andrückbar, das sich quer zur Materialbahn über die Verstellstrecke parallel zu den Führungselementen 8 erstreckt. Die beiden Trums 18, 19 des Bandes liegen jeweils an ihrer den Kolbenenden 16, 17 abgewandten Seiten an Vorsprüngen 21, 22 des Schlittens 6 an, so daß der Schlitten 6 wechselweise an einen der beiden Trums 18, 19 mittels der Kolbenenden 16, 17 anklemmbar ist. Dazu sind die beiden von einer Dichtung 23 getrennten Zylinderräume 24, 25 wechselweise über Leitungen 26, 27 mit Druckluft beaufschlagbar.
An der der Quertraverse 10 zugewandten Seite der Kolben-Zylinder-Einheit befindet sich ein weiterer Druckraum 28 mit einem passenden, nach unten bewegbaren Klemmkolben 29, mit dem der Schlitten 6 bei Beaufschlagung des Druckraums 28 mit Druckluft über die Leitung 30 an der Quertraverse 10 festgeklemmt und so in Arbeitsposition auf den Führungen 8 arretiert werden kann.As a coupling element, the adjusting device 12 contains a double-acting, pneumatic piston-cylinder unit, the cylinder 14 of which is fastened to the slide 6 between the bearings 15 of the guide elements 8. The two piston ends 16, 17 can each be pressed against a run 18, 19 of a rotating belt driven by a motor 20, which extends transversely to the material web over the adjustment path parallel to the guide elements 8. The two runs 18, 19 of the band each rest on their sides facing away from the piston ends 16, 17 on projections 21, 22 of the carriage 6, so that the carriage 6 can be alternately clamped to one of the two runs 18, 19 by means of the piston ends 16, 17 is. For this purpose, the two cylinder spaces 24, 25 separated by a seal 23 can be acted upon alternately via lines 26, 27 with compressed air.
On the side of the piston-cylinder unit facing the crossbar 10 there is a further pressure chamber 28 with a suitable, downwardly movable clamping piston 29 with which the carriage 6 is clamped to the crossbar 10 via line 30 when the pressure chamber 28 is pressurized with compressed air and can be locked in the working position on the guides 8.

Die Ventile 31, 32, mit denen die Bewegungen der Kolben 16, 17, 29 von einer nicht dargestellten Steuereinrichtung gesteuert werden, sind in Fig. 3 nur schematisch dargestellt.The valves 31, 32, with which the movements of the pistons 16, 17, 29 are controlled by a control device, not shown, are shown only schematically in FIG. 3.

Alternativ zu der vorstehend beschriebenen pneumatisch arbeitenden Kolben-Zylinder-Einheiten können auch elektromagnetisch betätigte Kolben verwendet werden, um die Schlitten 6, 7 an dem jeweiligen Trum 18, 19 festzuklemmen und an der Quertraverse 10 zu arretieren.As an alternative to the pneumatically operating piston-cylinder units described above, electromagnetically actuated pistons can also be used to clamp the carriages 6, 7 to the respective run 18, 19 and to lock them on the crossbar 10.

Beim Ausführungsbeispiel ist zur Positionsbestimmung an jedem Untermesserschlitten 6 und Obermesserschlitten 7 ein Winkelkodierer 33 befestigt (Fig. 1). Die Winkelkodierer 33 weisen ein mit einer drehbaren Signalscheibe verbundenes Ritzel 34 auf, das mit einer fest mit der Quertraverse 10 bzw. 11 verbundenen Zahnstange 35 kämmt. Der Winkelkodierer 33 erzeugt bei einer Verstellung der Schlitten 6 bzw. 7 entlang der Quertraverse 10 bzw. 11 eine zum Verstellweg proportionale Anzahl von Zählimpulsen, aus denen die Steuereinrichtung die jeweilige Schlittenposition, ausgehend von einer bekannten Startposition, rechnerisch ermittelt. Die Verstellung jedes einzelnen Schlittens 6, 7 kann so von der Steuereinrichtung aufgrund der tatsächlichen Positionen und der neuen Sollpositionen gesteuert werden.In the exemplary embodiment, an angle encoder 33 is attached to each lower knife carriage 6 and upper knife carriage 7 for determining the position (FIG. 1). The angle encoders 33 have a pinion 34 which is connected to a rotatable signal disk and which meshes with a toothed rack 35 which is fixedly connected to the crossbar 10 or 11. When the carriages 6 and 7 are moved along the crossmember 10 and 11, the angle encoder 33 generates a number of counting pulses proportional to the displacement, from which the control device calculates the respective carriage position, starting from a known starting position. The adjustment of each individual slide 6, 7 can thus be controlled by the control device on the basis of the actual positions and the new desired positions.

Anstelle der Winkelkodierer 33 sind auch andere absolut oder inkremental messende Wegmeßeinrichtungen einsetzbar. Ebenso ist es möglich, nur die Schlitten einer Seite, vorzugsweise die Untermesserschlitten 6, absolut oder inkremental zu positionieren und anschließend die zugehörigen Schlitten der anderen Seite, vorzugsweise die Obermesserschlitten 7, relativ zu den bereits positionierten Schlitten zu bewegen. Die relative Bewegung erfolgt dann mit Hilfe von bekannten Näherungsfühlern (z.B. Hallgeneratoren), mit denen sich ein Abstand zwischen zwei einander zugehörigen Schlitten 6, 7 ermitteln läßt.Instead of the angle encoder 33, other absolute or incremental measuring measuring devices can also be used. It is also possible to position only the slides on one side, preferably the lower knife slides 6, absolutely or incrementally and then to move the associated slides on the other side, preferably the upper knife slides 7, relative to the slides that have already been positioned. The relative movement then takes place with the aid of known proximity sensors (e.g. Hall generators), with which a distance between two associated slides 6, 7 can be determined.

Zum Positionieren der einzelnen Schlitten 6, 7 wird das Band 18, 19 von dem Motor 20 permanent mit gleichbleibender Geschwindigkeit in einem Umlaufsinn angetrieben (in Fig. 2 in Richtung des Pfeils 37 im Uhrzeigersinn). Somit bewegt sich der Trum 18 des Bandes in Fig. 2 nach rechts, der Trum 19 nach links. Im Schnitt nach Fig. 3 bewegt sich der Trum 19 in die Papierebene, der Trum 18 aus dieser heraus.To position the individual slides 6, 7, the belt 18, 19 is driven by the motor 20 permanently at a constant speed in one direction of rotation (in FIG. 2 in Clockwise direction of arrow 37). Thus the strand 18 of the belt in FIG. 2 moves to the right, the strand 19 to the left. 3, the strand 19 moves into the paper plane, the strand 18 out of it.

In den Sollpositionen, also während des Betriebs der Längsschneidevorrichtung, sind die Schlitten 6, 7 an den Quertraversen 10, 11 festgeklemmt. Dazu wird vom Ventil 32 Druckluft in den Druckraum 28 eingeleitet, so daß der Klemmkolben 29 gegen die Traverse 10 bzw. 11 drückt. Gleichzeitig werden die Zylinderräume 24, 25 entlüftet, so daß weder der Kolben 16 noch der Kolben 17 an dem jeweiligen Trum 18 bzw. 19 des Bandes anliegt. Um die Schlitten 6, 7 neu zu positionieren, wird zunächst der Druckraum 28 entlüftet, so daß die Klemmverbindung zu der Traverse 10, 11 gelöst wird. Gleichzeitig wird - je nach erforderlicher Verfahr­richtung - entweder der Zylinderraum 24 oder der Zylinderraum 25 mit Druckluft beaufschlagt, der jeweils andere Zylinderraum wird oder bleibt entlüftet. Bei einer Druckluftzufuhr in den Zylinderraum 25 bewegt sich das Kolbenende 16 gegen den Trum 18 und kuppelt so den Schlitten 6 an das Band an. Der Schlitten 6 wird so in Fig. 2 nach rechts bewegt. Analog erfolgt ein Verfahren der Schlitten 6 in Fig. 2 nach links, falls in den Zylinderraum 24 Druckluft eingeleitet wird, um den Schlitten an den Trum 19 anzukuppeln.In the desired positions, that is to say during the operation of the longitudinal cutting device, the carriages 6, 7 are clamped on the crossbeams 10, 11. For this purpose, compressed air is introduced into the pressure chamber 28 by the valve 32, so that the clamping piston 29 presses against the crossmember 10 or 11. At the same time, the cylinder spaces 24, 25 are vented, so that neither the piston 16 nor the piston 17 bears against the respective run 18 or 19 of the belt. In order to reposition the slides 6, 7, the pressure chamber 28 is first vented, so that the clamping connection to the cross member 10, 11 is released. At the same time - depending on the required direction of travel - either the cylinder space 24 or the cylinder space 25 is pressurized with compressed air, the other cylinder space becomes or remains vented. When compressed air is supplied to the cylinder chamber 25, the piston end 16 moves against the strand 18 and thus couples the carriage 6 to the belt. The carriage 6 is thus moved to the right in FIG. 2. Analogously, the carriage 6 is moved to the left in FIG. 2 if compressed air is introduced into the cylinder space 24 in order to couple the carriage to the strand 19.

Ohne die Umlaufrichtung des Bandes zu ändern, können so die Schlitten 6, 7 in beide Richtungen bewegt werden. Gleichfalls ist es möglich, einzelne Schlitten 6, 7 in eine Richtung und gleichzeitig andere Schlitten 6, 7 in die andere Richtung zu bewegen, um die Verstellzeiten möglichst kurz zu halten.The carriages 6, 7 can thus be moved in both directions without changing the direction of rotation of the belt. It is also possible to move individual carriages 6, 7 in one direction and other carriages 6, 7 in the other direction at the same time in order to keep the adjustment times as short as possible.

Claims (7)

1. Vorrichtung zum Positionieren von entlang Führungen bewegbaren Schlitten oder dergleichen an Verarbeitungsmaschinen für bahn- oder bogenförmige Materialien,
mit einer als umlaufendes Band ausgebildeten, sich parallel zu den Führungen erstreckenden Antriebseinrichtung, wobei jeder Schlitten ein bewegbares Element zum Ankuppeln an die Antriebseinrichtung aufweist,
dadurch gekennzeichnet, daß das Ankuppelelement zwischen den beiden Trums (18, 19) des Bandes angeordnet ist und Mittel (Kolbenenden 16, 17) zum wechselweisen Ankuppeln an beide Trums (18, 19) aufweist.1. Device for positioning carriages or the like which can be moved along guides on processing machines for sheet-like or sheet-like materials,
with a drive device designed as a circumferential band and extending parallel to the guides, each slide having a movable element for coupling to the drive device,
characterized in that the coupling element is arranged between the two runs (18, 19) of the belt and has means (piston ends 16, 17) for alternately coupling to both runs (18, 19). 2. Vorrichtung nach Anspruch 1, gekennzeichnet durch eine doppelt wirkende Kolben-Zylinder-Einheit als Ankuppelelement.2. Device according to claim 1, characterized by a double-acting piston-cylinder unit as a coupling element. 3. Vorrichtung nach Anspruch 1 oder 2, dadurch ge­kennzeichnet, daß die Verstelleinrichtung (12,13) ein Element (Klemmkolben 29) zum Arretieren der Schlitten (6,7) auf den Führungen (8,9) aufweist.3. Apparatus according to claim 1 or 2, characterized in that the adjusting device (12, 13) has an element (clamping piston 29) for locking the carriage (6, 7) on the guides (8, 9). 4. Vorrichtung nach Anspruch 3, gekennzeichnet durch einen am Zylinder (14) des Ankuppelelements angebrachten weiteren Druckraum (28) mit einem sich senkrecht zu den Kolben (16,17) bewegenden Klemmkolben (29) als Arretierelement.4. Apparatus according to claim 3, characterized by a further pressure chamber (28) attached to the cylinder (14) of the coupling element and having a clamping piston (29) moving perpendicular to the pistons (16, 17) as a locking element. 5. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß das Ankuppelelement und das Arretierelement der Verstelleinrichtung (12, 13) pneumatisch betrieben werden.5. Device according to one of claims 1 to 4, characterized in that the coupling element and the locking element of the adjusting device (12, 13) are operated pneumatically. 6. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß jeder Schlitten (6,7) eine absolut messende Wegmeßeinrichtung, vorzugsweise einen Winkelcodierer (33), zur Positionsbestimmung und -veränderung aufweist.6. Device according to one of claims 1 to 5, characterized in that each carriage (6, 7) has an absolutely measuring displacement measuring device, preferably an angle encoder (33), for position determination and change. 7. Vorrichtung nach einem der Ansprüche 1 bis 5 mit paarweise angeordneten Schlitten (6,7), dadurch gekenn­zeichnet, daß die Schlitten (6) einer Seite absolut messende Wegmeßeinrichtungen aufweisen und die zugehörigen Schlitten (7) der anderen Seite mit Hilfe von Näherungsfühlern positioniert werden.7. Device according to one of claims 1 to 5 with pairs of slides (6, 7), characterized in that the slides (6) on one side have absolutely measuring displacement measuring devices and the associated slides (7) on the other side are positioned with the aid of proximity sensors will.
EP90119155A 1989-11-17 1990-10-05 Device for positioning carriages or the like along guides Expired - Lifetime EP0433583B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3938278A DE3938278C2 (en) 1989-11-17 1989-11-17 Device for positioning slides or the like which can be moved along guides
DE3938278 1989-11-17

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EP0433583A2 true EP0433583A2 (en) 1991-06-26
EP0433583A3 EP0433583A3 (en) 1991-11-21
EP0433583B1 EP0433583B1 (en) 1994-06-01

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EP90119155A Expired - Lifetime EP0433583B1 (en) 1989-11-17 1990-10-05 Device for positioning carriages or the like along guides

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US (1) US5072641A (en)
EP (1) EP0433583B1 (en)
JP (1) JP3080981B2 (en)
AT (1) ATE106305T1 (en)
BR (1) BR9005819A (en)
CA (1) CA2027055C (en)
DE (2) DE3938278C2 (en)
ES (1) ES2057309T3 (en)
FI (1) FI94321C (en)

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ES2048620A1 (en) * 1990-07-05 1994-03-16 Alpha Maschinenbau Ag Bending machine for skein-shaped material
FR2678545A1 (en) * 1991-07-01 1993-01-08 Komori Chambon Positioner of spacers for an apparatus for cutting out cardboard blanks
WO2001072468A1 (en) * 2000-03-24 2001-10-04 Wilhelm Bilstein KG Spezialfabrik für Maschinenmesser und Kompressorventile Device for longitudinally separating material strips by means of locking brakes on the cutter holders
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Also Published As

Publication number Publication date
ES2057309T3 (en) 1994-10-16
FI94321C (en) 1995-08-25
DE3938278C2 (en) 1993-12-09
ATE106305T1 (en) 1994-06-15
JPH03170297A (en) 1991-07-23
US5072641A (en) 1991-12-17
FI905686A (en) 1991-05-18
DE59005930D1 (en) 1994-07-07
CA2027055C (en) 2003-04-22
DE3938278A1 (en) 1991-05-23
BR9005819A (en) 1991-09-24
JP3080981B2 (en) 2000-08-28
EP0433583B1 (en) 1994-06-01
EP0433583A3 (en) 1991-11-21
FI94321B (en) 1995-05-15
CA2027055A1 (en) 1991-05-18
FI905686A0 (en) 1990-11-16

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