EP0714839B1 - Process for putting a can welding machine into operation or for converting the same, and a modular magazine for implementing the process - Google Patents

Process for putting a can welding machine into operation or for converting the same, and a modular magazine for implementing the process Download PDF

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Publication number
EP0714839B1
EP0714839B1 EP95117459A EP95117459A EP0714839B1 EP 0714839 B1 EP0714839 B1 EP 0714839B1 EP 95117459 A EP95117459 A EP 95117459A EP 95117459 A EP95117459 A EP 95117459A EP 0714839 B1 EP0714839 B1 EP 0714839B1
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EP
European Patent Office
Prior art keywords
magazine
blanks
modular
machine
sheet metal
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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.)
Expired - Lifetime
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EP95117459A
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German (de)
French (fr)
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EP0714839A1 (en
Inventor
Roland Dietschi
Gideon Dr. Levy
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Elpatronic AG
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Elpatronic AG
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H1/00—Supports or magazines for piles from which articles are to be separated
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S414/00—Material or article handling
    • Y10S414/10—Associated with forming or dispersing groups of intersupporting articles, e.g. stacking patterns
    • Y10S414/114—Adjust to handle articles or groups of different sizes

Definitions

  • the invention relates to a method for starting up or retrofitting a sheet metal processing machine according to the preamble of claim 1 and a modular magazine for performing the method according to claim 4.
  • Sheet stacking magazines and sheet separating devices are known and are used by many Used sheet metal processing machines and also for example in conventional can making machines used where the highest demands on the separation mechanism exist: there are up to 500 for medium-performance machines, up to 500 for high-performance machines to separate to 1000 sheets per minute.
  • the adjustable stack supports of the sheet stacking magazine e.g. designed as four angle profiles assigned to the sheet metal stack corners, which at a format change must be coordinated with each other.
  • stacking To enable individual sheets in the cadence mentioned, it is also known with the supply of Separating or spreading air to help keep the single sheet from the sheet stack flawless is separated.
  • the bottom sheet metal separating catches must be positioned exactly; For Every sheet format, sheet type and every sheet coating is a different positioning too choose. Both the adjustable air expansion elements required for this, as well as the stack supports for guiding and holding the stack of sheets are machine-bound, i.e. nearby of the magazine on the machine itself.
  • the stack supports the expansion air elements (Position and orientation of the air jet and blowing volume) and the distance from Isolation organ must be taken into account.
  • the operating instructions for such machines include a preferred one Basic setting and the further instruction to improve the settings until all Parameters are set empirically and thus have the right relationship to each other.
  • the present invention has for its object a method for commissioning or To propose a retrofit of a frame welding machine, which is a production start-up or. Changeover to another product (change of sheet format and / or sheet material) in allowed shorter time and simple, i.e. without the involvement of a specialist, by the line staff can be made.
  • auxiliary organs for separation are no longer in the Machine itself, but installed on the frame of a modular magazine save the settings by removing the magazine.
  • This in turn allows one modular magazine with the help of sample or sample sheets e.g. on a test bench of the Manufacturer or at another location where experts are available (e.g. at a central location of the line operator) to set correctly.
  • the operational magazine can then simply be mounted on the machine so that the changeover time (or time for the Commissioning) is minimized and the need for experts on site is eliminated.
  • a sheet stacking magazine 1 is for example for a can making machine shown in unfilled condition.
  • the sheet stacking magazine 1 has a frame 4 on by means of set screws 5 (on a not shown to relieve the figure Known welding machine, see e.g. CH-A 671 945) is positioned.
  • the welding machine has a separating device e.g. according to EP 0 575 707 A1 or EP 0 406 608 B1, which is also not shown.
  • the bottom sheet in each case from above into the sheet stacking magazine 1 filled sheet metal stack (not shown) gripped, for example sucked, and then transported in the direction of arrow P according to FIG. 1 to a further processing station.
  • a plurality of stack supports 6 or 18 For guiding and holding the stack of sheets, a plurality of stack supports 6 or 18 arranged.
  • the front stack supports are 6a, the rear ones designated 6b.
  • Stack supports 18 and 6c, 6d are arranged on the sides.
  • the front stack supports 6a, the rear stack supports 6b and the side stack supports 18 are at the bottom inward facing, under the sheet metal stack holding surfaces 28; the stack supports 6c, 6d do not have these surfaces and are mainly stack guides intended for the upper area of the stack of sheets.
  • the holding surfaces 28 define the lower one Sheet stacking edge.
  • the height of this sheet metal stack edge is in relation to the sheet separating device adjustable by means of the set screws 5, which is the distance of the bottom sheet to Separation organ determined.
  • the Stack supports 6 are provided with bevels 11 at the top.
  • the distance between the front and rear stack supports 6a, 6b corresponds e.g. a can processing size ( ⁇ ⁇ d), the distance between the side stack supports 18; 6c, 6d the can or Frame height.
  • ⁇ ⁇ d can processing size
  • the rear, also forming a piece stack supports 6b are arranged adjustable to set the desired distance.
  • a lower part 8 of the stack supports 6b is in corresponding recesses 9 of the frame 4 slidably guided and by means of adjusting screws 10 fixed at the desired location.
  • two parallel rails 14 are arranged so as to be mutually relatively adjustable, on which by means of adjusting screws 15 and 19 (Fig. 2 and 3) the side stack guides 6c or 6d and the stack supports 18, each at the desired distance from one another, can be fixed are.
  • two expansion air supply elements 22 are adjustable on the profile rails 14 arranged and fixable by means of adjusting screws 23 at the desired location.
  • the stack supports 18 are provided in the lower area with interchangeable separating locking elements, several have groove-shaped partitions 20.
  • Each expansion air supply element 22 is in the lower Area equipped with a height-adjustable blowing nozzle 24, the blowing direction by a rotation adjustment, angle adjustment and height adjustment, preferably in three degrees of freedom, selected relative to the expansion air supply element 22 and together with the desired one Nozzle height can be set by adjusting screws 25.
  • the spreading air volume is also in not shown, but adjustable in a conventional manner.
  • the distance to the side of the sheet stack corresponding to the desired frame height acting, opposing elements is achieved by adjusting the rails 14 set.
  • the frame 4 is equipped with two carrying handles 30.
  • the stack of sheets intended for further processing must be reliable in the sheet stacking magazine 1 must be held, but the bottom sheet must be slightly pulled off when stacking to be guaranteed. Especially double sheets, i.e. a peeling of two during the separation process sheets that stick together must be avoided. To meet this requirement Taking account of this will place high demands on the accuracy of the setting of the sheet stacking magazine 1 posed.
  • the setting accuracy is particularly important when it comes to High-performance machines in which, for example, up to 1000 pieces per minute to be edited.
  • Another advantage is that the customer provided the machine with several Modules can take over without having to carry out the complicated settings yourself have to.
  • Another advantage is that, according to the invention, a module change from one Machine to another machine is possible.
  • the sheet stacking magazine according to the invention is particularly suitable for can welding machines, who work with very high cycle rates, but are not limited to them.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Warehouses Or Storage Devices (AREA)
  • Automatic Assembly (AREA)
  • Multi-Process Working Machines And Systems (AREA)

Description

Die Erfindung betrifft ein Verfahren zur Inbetriebnahme oder Umrüstung einer Blechverarbeitungsmaschine gemäss dem Oberbegriff des Anspruches 1 sowie ein modulares Magazin zum Durchführen des Verfahrens nach Anspruch 4.The invention relates to a method for starting up or retrofitting a sheet metal processing machine according to the preamble of claim 1 and a modular magazine for performing the method according to claim 4.

Blechstapelmagazine und Blechvereinzelungsvorrichtungen sind bekannt und werden bei vielen Blechverarbeitungsmaschinen benützt und auch beispielsweise bei herkömmlichen Dosenherstellungsmaschinen eingesetzt, Wo höchste Ansprüche an den Vereinzelungsmechanismus bestehen: es sind bei Maschinen mittlerer Leistung bis zu 500, bei Hochleistungsmaschinen bis zu 1000 Bleche pro Minute zu vereinzeln. Die einstellbaren Stapelstützen des Blechstapelmagazins werden z.B. als vier den Blechstapelecken zugeordnete Winkelprofile ausgebildet, die bei einem Formatwechsel jeweils aufeinander abgestimmt werden müssen. Um das Abstapeln einzelner Bleche in der genannten Kadenz zu ermöglichen, ist es auch bekannt, mit Zufuhr von Separier- bzw. Spreizluft zu helfen, dass das einzelne Blech vom Blechstapel einwandfrei abgetrennt wird. Um die Durchbiegung des untersten Blechs, welches durch die Vereinzelungsvorrichtung erfasst und weitertransportiert wird, auf dem notwendigen und genau definierten Mass zu halten, sind das unterste Blech untergreifende Trennrasten exakt zu positionieren; für jedes Blechformat, Blechsorte und jede Blechbeschichtung ist eine andere Positionierung zu wählen. Sowohl die dazu benötigten, einstellbaren Spreizluftelemente, als auch die Stapelstützen zur Führung und Halterung des Blechstapels sind dabei maschinengebunden, d.h. in der Nähe des Magazins an der Maschine selbst angeordnet. Sheet stacking magazines and sheet separating devices are known and are used by many Used sheet metal processing machines and also for example in conventional can making machines used where the highest demands on the separation mechanism exist: there are up to 500 for medium-performance machines, up to 500 for high-performance machines to separate to 1000 sheets per minute. The adjustable stack supports of the sheet stacking magazine e.g. designed as four angle profiles assigned to the sheet metal stack corners, which at a format change must be coordinated with each other. About stacking To enable individual sheets in the cadence mentioned, it is also known with the supply of Separating or spreading air to help keep the single sheet from the sheet stack flawless is separated. To the deflection of the bottom sheet, which is caused by the separating device is recorded and transported on the necessary and precisely defined To keep dimensions, the bottom sheet metal separating catches must be positioned exactly; For Every sheet format, sheet type and every sheet coating is a different positioning too choose. Both the adjustable air expansion elements required for this, as well as the stack supports for guiding and holding the stack of sheets are machine-bound, i.e. nearby of the magazine on the machine itself.

Zu den genannten Einstellparametern (Separierluft, Trennrasten) gehört auch ein je nach zu vereinzelndem Blech verschiedener, aber dann konstanter Abstand des untersten Blechs zum Vereinzelungsorgan.Depending on the setting parameters mentioned (separation air, separation pegs) separating sheet different, but then constant distance of the lowest sheet to Isolation organ.

Bei jeder Umstellung auf ein anderes Produkt, sei es ein anderes Format oder ein anderes Blechmaterial, müssen alle Einstellungen völlig neu vorgenommen werden. Dabei werden hohe Ansprüche an die Genauigkeit der Einstellung gestellt, da der Blechstappel einerseits ausreichend im Magazin gehalten werden muss, anderseits aber ein leichtes Abziehen einzelner Bleche durch die Blechvereinzelungsvorrichtung bzw. den Abstapler möglich sein muss. Z.B. je nach Blechformat, Blechmaterial oder Blechdicke (insbesondere dünne, leicht zum Flattern neigende Bleche sind schwer zu beherrschen), aber auch je nach der Beschichtung der Bleche oder je nach Dicke der Oelschicht auf der Blechoberfläche werden jeweils vollkommen unterschiedliche Bedingungen geschaffen, die beim Einstellen z.B. der Stapelstützen, der Spreizluftelemente (Läge und Ausrichtung des Luftstrahls und Blasmenge) und des Abstands vom Vereinzelungsorgan berücksichtigt werden müssen. Bei der Vielzahl der zu berücksichtigenden Parameter kann keine Einstellvorschrift mehr angegeben werden, welche eine einwandfreie Vereinzelung sicherstellt. Die Betriebsvorschriften solcher Maschinen enthalten eine bevorzugte Grundeinstellung und die weitere Anweisung, die Einstellungen so lange zu verbessern, bis alle Parameter empirisch eingestellt und damit das richtige Verhältnis zueinander haben.Each time you switch to a different product, be it a different format or a different one Sheet material, all settings must be made from scratch. Doing so will be high Demands placed on the accuracy of the setting, since the sheet metal stack is sufficient on the one hand must be kept in the magazine, but on the other hand a slight pulling off of individual Sheets must be possible through the sheet separating device or the destacker. E.g. depending on the sheet format, sheet material or sheet thickness (especially thin, easy to flutter inclined sheets are difficult to control), but also depending on the coating of the sheets or depending on the thickness of the oil layer on the surface of the sheet, completely different Conditions created when hiring e.g. the stack supports, the expansion air elements (Position and orientation of the air jet and blowing volume) and the distance from Isolation organ must be taken into account. With the multitude of to be considered Parameters can no longer be specified as a setting instruction, which is a perfect one Isolation ensures. The operating instructions for such machines include a preferred one Basic setting and the further instruction to improve the settings until all Parameters are set empirically and thus have the right relationship to each other.

Diese langwierige Arbeiten können nur von einem Fachmann für die Inbetriebnahme der Maschine durchgeführt werden und verursachen jeweils lange Stillstandzeiten der Maschine. Auch nach Wartungsarbeiten, beispielsweise am Abstapler, der ohne Demontage des Blechstapelmagazins und Verstellung der umgebenden Hilfsorgane nicht zugänglich ist, entstehen grosse Produktionsunterbrüche, da danach die Einstellungen jeweils neu vorgenommen, d.h. wieder empirisch bestimmt werden müssen. Insbesondere bei Hochleistungsmaschinen, bei welchen beispielsweise bis zu 1000 Dosen pro Minute hergestellt werden, ergeben sich dadurch nennenswerte Produktionsausfälle. This lengthy work can only be carried out by a specialist for commissioning the Machine and cause long machine downtimes. Even after maintenance work, for example on the destacker, without dismantling the sheet stacking magazine and adjustment of the surrounding auxiliary organs is not accessible major production interruptions, since the settings are then made again, i.e. have to be determined empirically again. Especially with high-performance machines which results, for example, in the production of up to 1000 cans per minute significant production downtimes.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein Verfahren zur Inbetriebnahme oder Umrüstung einer Zargenschweissmaschine vorzuschlagen , das eine Produktionsinbetriebnahme-bzw. Umstellung auf ein anderes Produkt (Blechformat- und/oder Blechmaterialwechsel) in kürzerer Zeit erlaubt und einfach, d.h. ohne Beizug eines Fachmanns, durch das Linienpersonal vorgenommen werden kann.The present invention has for its object a method for commissioning or To propose a retrofit of a frame welding machine, which is a production start-up or. Changeover to another product (change of sheet format and / or sheet material) in allowed shorter time and simple, i.e. without the involvement of a specialist, by the line staff can be made.

Diese Aufgabe wird erfindungsgemäss durch die im Kennzeichen des Anspruches 1 angegebenen Merkmale gelöst; ein Magazin zur Durchführung des Verfahrens besitzt die Merkmale von Anspruch 4.According to the invention, this object is achieved by the features specified in the characterizing part of claim 1 Features solved; a magazine for performing the method has the features of Claim 4.

Dadurch, dass die Hilfsorgane für die Vereinzelung (Spreizluft, etc.) nicht mehr in der Maschine selbst, sondern auf dem Rahmen eines modularen Magazins eingebaut sind, lassen sich die Einstellungen durch Entfernung des Magazins speichern. Dies wiederum erlaubt, ein modulares Magazin mit Hilfe von Muster- oder Probeblechen z.B. auf einem Prüfstand des Herstellers oder an einem anderen Ort, wo Fachleute zur Verfügung stehen (z.B. an einem zentralen Ort des Linienbetreibers), korrekt einzustellen. Das einsatzfähige Magazin kann dann einfach auf der Maschine montiert werden, so dass die Umrüstungzeit (oder Zeit für die Inbetriebnahme) minimiert ist und der Bedarf nach Fachleuten vor Ort entfällt.Because the auxiliary organs for separation (spreading air, etc.) are no longer in the Machine itself, but installed on the frame of a modular magazine save the settings by removing the magazine. This in turn allows one modular magazine with the help of sample or sample sheets e.g. on a test bench of the Manufacturer or at another location where experts are available (e.g. at a central location of the line operator) to set correctly. The operational magazine can then simply be mounted on the machine so that the changeover time (or time for the Commissioning) is minimized and the need for experts on site is eliminated.

Ein Ausführungsbeispiel des erfindungsgemässen, modularen Blechstapelmagazins ist in der Zeichnung dargestellt und im folgenden näher beschrieben. Es zeigen:

Fig. 1
das Blechstapelmagazin in Ansicht;
Fig. 2
das Blechstapelmagazin nach Fig.1 perspektivisch dargestellt;
Fig. 3
eine andere perspektivische Darstellung des Blechstapelmagazins, teilweise im Schnitt.
An embodiment of the modular sheet stacking magazine according to the invention is shown in the drawing and described in more detail below. Show it:
Fig. 1
the sheet stacking magazine in view;
Fig. 2
the sheet stacking magazine according to Figure 1 shown in perspective;
Fig. 3
another perspective view of the sheet stacking magazine, partly in section.

In der Zeichnung ist ein Blechstapelmagazin 1 beispielsweise für eine Dosenherstellungsmaschine in ungefülltem Zustand dargestellt. Das Blechstapelmagazin 1 weist einen Rahmen 4 auf, der mittels Stellschrauben 5 (an einer zur Entlastung der Figur nicht näher dargestellten Schweissmaschine bekannter Art, siehe z.B. CH-A 671 945) positioniert ist. Die Schweissmaschine besitzt eine Vereinzelungsvorrichtung z.B. gemäss EP 0 575 707 A1 oder EP 0 406 608 B1, welche ebenfalls nicht dargestellt ist. Durch die Blechvereinzelungsvorrichtung wird in an sich bekannter Weise jeweils das unterste Blech eines von oben in das Blechstapelmagazin 1 eingefüllten Blechstapels (nicht dargestellt) ergriffen, beispielsweise angesaugt, und danach in Richtung des Pfeiles P nach Fig.1 zu einer Weiterverarbeitungsstation transportiert.In the drawing, a sheet stacking magazine 1 is for example for a can making machine shown in unfilled condition. The sheet stacking magazine 1 has a frame 4 on by means of set screws 5 (on a not shown to relieve the figure Known welding machine, see e.g. CH-A 671 945) is positioned. The welding machine has a separating device e.g. according to EP 0 575 707 A1 or EP 0 406 608 B1, which is also not shown. Through the sheet separation device in a manner known per se, the bottom sheet in each case from above into the sheet stacking magazine 1 filled sheet metal stack (not shown) gripped, for example sucked, and then transported in the direction of arrow P according to FIG. 1 to a further processing station.

Zur Führung und Halterung des Blechstapels sind am Rahmen 4 mehrere Stapelstützen 6 bzw. 18 angeordnet. In Pfeilrichtung P betrachtet sind die vorderen Stapelstützen mit 6a, die hinteren mit 6b bezeichnet. Seitlich sind Stapelstützen 18 bzw. 6c,6d angeordnet. Die vorderen Stapelstützen 6a, die hinteren Stapelstützen 6b sowie die seitlichen Stapelstützen 18 sind unten mit nach innen gerichteten, den Blechstapel untergreifenden Halteflächen 28 versehen; die Stapelstützen 6c,6d weisen diese Flächen nicht auf und sind lediglich als Stapelführungen vor allem für den oberen Bereich des Blechstapels vorgesehen. Die Halteflächen 28 definieren die untere Blechstapelkante. Die Höhenlage dieser Blechstapelkante ist gegenüber der Blechvereinzelungsvorrichtung mittels der Stellschrauben 5 einstellbar, was den Abstand des untersten Blechs zum Vereinzelungsorgan bestimmt.For guiding and holding the stack of sheets, a plurality of stack supports 6 or 18 arranged. When viewed in the direction of arrow P, the front stack supports are 6a, the rear ones designated 6b. Stack supports 18 and 6c, 6d are arranged on the sides. The front stack supports 6a, the rear stack supports 6b and the side stack supports 18 are at the bottom inward facing, under the sheet metal stack holding surfaces 28; the stack supports 6c, 6d do not have these surfaces and are mainly stack guides intended for the upper area of the stack of sheets. The holding surfaces 28 define the lower one Sheet stacking edge. The height of this sheet metal stack edge is in relation to the sheet separating device adjustable by means of the set screws 5, which is the distance of the bottom sheet to Separation organ determined.

Um das Einschieben eines Blechstapels in das Blechstapelmagazin 1 zu erleichtern, sind die Stapelstützen 6 oben mit Abschrägungen 11 versehen.In order to facilitate the insertion of a sheet stack into the sheet stack magazine 1, the Stack supports 6 are provided with bevels 11 at the top.

Der Abstand der vorderen und der hinteren Stapelstützen 6a,6b entspricht z.B. einer Dosenabwicklungsgrösse (π·d), der Abstand der seitlichen Stapelstützen 18; 6c, 6d der Dosen- bzw. Zargenhöhe. Während bei dem dargestellten Ausführungsbeispiel die vorderen, ein Stück bildenden Stapelstützen 6a mittels Schrauben 7 (Fig.3) ortsfest mit dem Rahmen 4 verbunden sind, sind die hinteren, ebenfalls ein Stück bildenden Stapelstützen 6b verstellbar angeordnet zum Einstellen des gewünschten Abstandes. Ein unterer Teil 8 der Stapelstützen 6b wird in entsprechenden Ausnehmungen 9 des Rahmens 4 verschiebbar geführt und mittels Einstellschrauben 10 an gewünschter Stelle fixiert.The distance between the front and rear stack supports 6a, 6b corresponds e.g. a can processing size (π · d), the distance between the side stack supports 18; 6c, 6d the can or Frame height. While in the illustrated embodiment the front, one piece forming stack supports 6a fixedly connected to the frame 4 by means of screws 7 (FIG. 3) are, the rear, also forming a piece stack supports 6b are arranged adjustable to set the desired distance. A lower part 8 of the stack supports 6b is in corresponding recesses 9 of the frame 4 slidably guided and by means of adjusting screws 10 fixed at the desired location.

Am Rahmen 4 sind zwei parallele Profilschienen 14 gegenseitig relativ verstellbar angeordnet, an denen mittels Einstellschrauben 15 bzw. 19 (Fig.2 und 3) die seitlichen Stapelführungen 6c bzw. 6d sowie die Stapelstützen 18, jeweils im gewünschten Abstand voneinander, fixierbar sind. An den Profilschienen 14 sind ferner je zwei Spreizluftzufuhrelemente 22 verstellbar angeordnet und mittels Einstellschrauben 23 an gewünschter Stelle fixierbar. Die Stapelstützen 18 sind im unteren Bereich mit austauschbaren Trennrastelementen versehen, die mehrere rillenförmige Trennrasten 20 aufweisen. Jedes Spreizluftzufuhrelement 22 ist im unteren Bereich mit einer höhenverstellbaren Blasdüse 24 ausgestattet, wobei die Blasrichtung durch eine Drehverstellung, Winkelverstellung und Höhenverstellung, vorzugsweise in drei Freiheitsgraden, gegenüber dem Spreizluftzufuhrelement 22 gewählt und zusammen mit der gewünschten Düsenhöhe durch Einstellschrauben 25 festgelegt werden kann. Auch die Spreizluftmenge ist in nicht näher dargestellter, aber konventioneller Weise regulierbar.On the frame 4, two parallel rails 14 are arranged so as to be mutually relatively adjustable, on which by means of adjusting screws 15 and 19 (Fig. 2 and 3) the side stack guides 6c or 6d and the stack supports 18, each at the desired distance from one another, can be fixed are. Furthermore, two expansion air supply elements 22 are adjustable on the profile rails 14 arranged and fixable by means of adjusting screws 23 at the desired location. The stack supports 18 are provided in the lower area with interchangeable separating locking elements, several have groove-shaped partitions 20. Each expansion air supply element 22 is in the lower Area equipped with a height-adjustable blowing nozzle 24, the blowing direction by a rotation adjustment, angle adjustment and height adjustment, preferably in three degrees of freedom, selected relative to the expansion air supply element 22 and together with the desired one Nozzle height can be set by adjusting screws 25. The spreading air volume is also in not shown, but adjustable in a conventional manner.

Der der gewünschten Zargenhöhe entsprechende Abstand der seitlich auf den Blechstapel einwirkenden, sich gegenüberliegenden Elemente wird durch die Verstellung der Profilschienen 14 eingestellt.The distance to the side of the sheet stack corresponding to the desired frame height acting, opposing elements is achieved by adjusting the rails 14 set.

Selbstverständlich könnte anstelle von je zwei mit Halteflächen 28 versehenen Stapelstützen 18 pro Blechstapelseite auch nur je ein solches Element pro Seite ausreichen, oder aber mehrere als je zwei verwendet werden.Of course, instead of two stacking supports 18 provided with holding surfaces 28 each, only one such element per side is sufficient per sheet stack page, or several be used as two each.

Der Rahmen 4 ist mit zwei Traggriffen 30 ausgestattet. The frame 4 is equipped with two carrying handles 30.

Aus dem beschriebenen Aufbau ergibt sich folgende Wirkungsweise:The structure works as follows:

Der zur Weiterverarbeitung bestimmte Blechstapel muss im Blechstappelmagazin 1 zuverlässig gehalten werden, dennoch muss beim Abstapeln ein leichtes Abziehen des untersten Blechs gewährleistet sein. Vor allem Doppelbleche, d.h. ein Abziehen zweier, während dem Vereinzelungsvorgang aneinanderklebender Bleche, sind zu vermeiden. Um dieser Anforderung Rechnung zu tragen, werden hohe Ansprüche an die Genauigkeit der Einstellung des Blechstappelmagazins 1 gestellt. Die Einstellgenauigkeit ist besonders dann wichtig, wenn es sich um Hochleistungsmaschinen handelt, bei denen beispielsweise bis zu 1000 Stück pro Minute bearbeitet werden. Da ist nicht nur ein präzises Einstellen der Stapelstützen 6,18 mit vorzugsweise 0.3 mm Genauigkeit relativ zueinander entsprechend dem zu verarbeitenden Blechformat unumgänglich; die Blechvereinzelung muss durch das Anbringen von Trennrasten 20 und durch die Verwendung der Separier- bzw. Spreizluft zusätzlich unterstützt werden. Dabei können für die Einstellung nur begrenzt Betriebsvorschriften erstellt werden, da neben dem Blechformat, Blechdicke und Blechmaterial noch etliche weitere Gegebenheiten die Anforderungen an die Einstellung der Stapelstützen 6, 18 und der Spreizluftelemente 22 beeinflussen. So spielt beispielsweise die Oberflächenbeschaffenheit des Blechs eine wesentliche Rolle; je nach dem, ob es sich um lackierte oder unlackierte Bleche handelt, ob und wie die Bleche bedruckt sind, ob sie verölt sind, ob sie flattern, je nach Blechhärte etc. muss jeweils eine optimale Einstellung empirisch gesucht werden. Ein wichtiges Merkmal ist z.B. besonders bei grösseren Blechen der gewichtsbedingte Durchhang des untersten Blechs, der durch die Verstellung der seitlichen Stapelstützen 18 entlang der Profilschiene 14 beeinflusst und durch die Einstellung des Abstands des Rahmens 4 gegenüber der Blechvereinzelungsvorrichtung (Stellschrauben 5) berücksichtigt wird.The stack of sheets intended for further processing must be reliable in the sheet stacking magazine 1 must be held, but the bottom sheet must be slightly pulled off when stacking to be guaranteed. Especially double sheets, i.e. a peeling of two during the separation process sheets that stick together must be avoided. To meet this requirement Taking account of this will place high demands on the accuracy of the setting of the sheet stacking magazine 1 posed. The setting accuracy is particularly important when it comes to High-performance machines in which, for example, up to 1000 pieces per minute to be edited. There is not only a precise setting of the stack supports 6, 18 with preferably 0.3 mm accuracy relative to each other according to the sheet size to be processed inevitable; the sheet separation must be done by attaching separating catches 20 and the use of the separating or spreading air is additionally supported. You can do this for the setting only creates limited operating instructions, because in addition to the sheet format, Sheet thickness and sheet material still several other conditions the requirements for Adjust the setting of the stack supports 6, 18 and the expansion air elements 22. So play for example, the surface condition of the sheet plays an important role; depending on, whether it is coated or unpainted sheets, whether and how the sheets are printed, whether they are oiled, whether they flutter, depending on the sheet hardness, etc. must be optimal be searched empirically. An important feature is e.g. especially with larger sheets of weight-related sag of the bottom sheet, caused by the adjustment of the side Stack supports 18 influenced along the rail 14 and by adjusting the distance of the frame 4 compared to the sheet separating device (adjusting screws 5) becomes.

Diese komplizierte Blechmagazineinstellung kann nur von einem Fachmann durchgeführt werden. Beim Formatwechsel oder bei Änderung nur eines der vorstehend erwähnten Parameter müssen alle Einstellungen nochmals durchgeführt werden: Die Einstellparameter beeinflussen sich gegenseitig, so dass die Aenderung des einen Parameters eine Aenderung des anderen Parameters bedingt.This complicated sheet metal magazine setting can only be carried out by a specialist will. When changing formats or changing only one of the parameters mentioned above all settings must be carried out again: influence the setting parameters each other, so that changing one parameter is changing the other Parameters conditional.

Erfindungsgemäss sind die einstellbaren Stapelstützen 6, 18, die Trennrasten 28 und Spreizluftelemente 22 sowie die als Stellschrauben ausgebildeten Abstandselemente 5 auf dem in einfacher Weise vom Abstapler abnehmbaren Rahmen 4 angeordnet und bilden somit ein Modul, das mit den bestehenden Einstellungen archiviert werden kann. So bleiben die gefundenen Magazineinstellungen beim zeitweiligen Formatwechsel erhalten. Für jedes für die Produktion vorgesehene Format kann ein solches Modul bereitstehen. Der Modulwechsel kann dann einfach und rasch auch durch einen weniger qualifizierten Operateur durchgeführt werden, ohne dass lange Stillstandzeiten verursacht werden. Auch nach Wartungsarbeiten, beispielsweise am Abstapler, der nun durch die Abnehmbarkeit des Rahmens 4 leicht zugänglich ist, kann die Maschine rasch wieder in Betrieb gesetzt werden, ohne dass die langwierigen Magazineinstellungen neu vorgenommenwerden müssen. Selbst wenn eine neue Einstellung nötig ist, weil beispielsweise nicht genug Module vorhanden sind, so kann sie ausserhalb der mit einem anderen Modul weiter laufenden Maschine vorgenommen werden. Um die Bedeutung dieser Verbesserung zu verdeutlichen, muss man bedenken, dass ein Stillstand von einer Stunde bei einer Hochleistung- Dosenherstellungsmaschine einen Ausfall von heute bis zu 60 000 Dosen zur Folge hat.According to the invention, the adjustable stack supports 6, 18, the separating catches 28 and spreading air elements 22 and the spacer elements 5 designed as adjusting screws on the in simple Arranged frame 4 removable from the stacker and thus form a module, that can be archived with the existing settings. So the found ones stay Receive magazine settings when changing format temporarily. For each for the production Such a module can be provided in the intended format. The module change can then can be carried out easily and quickly even by a less qualified surgeon that long downtimes are caused. Even after maintenance work, for example on Stacker, which is now easily accessible due to the removable frame 4, can Machine can be put back into operation quickly without the tedious magazine settings must be made anew. Even if a new attitude is necessary because For example, if there are not enough modules, it can be used outside of the one other module that continues to run. To the importance of this To illustrate improvement, one has to consider that a standstill of one hour a high-performance can making machine, a failure of up to 60,000 cans today has the consequence.

Ein weiterer Vorteil bietet sich darin, dass der Kunde die Maschine mit mehreren vorgesehenen Modulen übernehmen kann, ohne die komplizierten Einstellungen selber durchführen zu müssen.Another advantage is that the customer provided the machine with several Modules can take over without having to carry out the complicated settings yourself have to.

Ein weiterer Vorteil besteht darin, dass erfindungsgemäss auch ein Modulwechsel von einer Maschine zu einer anderen Maschine möglich ist.Another advantage is that, according to the invention, a module change from one Machine to another machine is possible.

Das erfindungsgemässe Blechstapelmagazin ist besonders für Dosenschweissmaschinen geeignet, die mit sehr hohen Taktzahlen arbeiten, aber nicht auf solche beschränkt.The sheet stacking magazine according to the invention is particularly suitable for can welding machines, who work with very high cycle rates, but are not limited to them.

Claims (11)

  1. Process for the initial operation or changeover of a sheet metal processing machine, in particular a can body welding machine in respect of sheet metal blanks which are to be processed, in particular welded, and have predetermined characteristics, such as in particular blank size and/or alloy and/or surface condition, blanks to be processed being individually fed from a magazine (1) by means of a separating device (22) which transports them onwards to a processing station, characterized in that a modular and portable magazine which is connectable to the machine and has at least one auxiliary device (22) for the separation of the sheet metal blanks is used as the blank magazine (1) and is installed on the machine, the operating parameter or parameters of the auxiliary device or devices (22) having been preset to an operative condition to suit the characteristics of the sheet metal blank to be processed.
  2. Process according to Claim 1, characterized in that the operating parameters
    separating air (preferably the setting of an air jet)
    sag of the bottom blank of the magazine stack (preferably the setting of the parting catches)
    clearance between bottom blank and separating device (preferably the setting of a spacer element)
    have been preset to suit a given sheet metal blank to be processed.
  3. Process according to Claim 1 or Claim 2, characterized in that with a view to changing the blanks to be processed the modular magazine (1) is removed and is stored with the existing setting of operating parameters [intact] until such time as it is used again for processing similar blanks in the can body welding machine.
  4. Process according to any one of Claims 1 to 3, characterized in that the operating parameters are set with the aid of trial blanks on a machine test bench [and] the modular magazine (1) prepared for operation for a given blank is delivered to the line operator, or is taken to the welding machine, and is immediately installed on the machine, ready for operation, or is placed in interim storage pending utilization.
  5. Modular magazine for a sheet metal blank processing machine possessing a separating device (22) for blanks to be individually fed from the magazine at a high rate, with adjustable stack rests 6 to receive stacks of blanks of different sizes, characterized by a frame 4 with one or more auxiliary devices (22) for the separation and/or withdrawal of individual blanks by the separating device (22).
  6. Modular magazine according to Claim 5, characterized by adjustable parting catch elements (28) constructed as auxiliary device and mounted on the frame, for obtaining a predetermined sag, by precisely positioned support, of the blank which is ready to be withdrawn.
  7. Modular magazine according to Claim 5, characterized by separating air elements (22) mounted on the frame (4), and adjustable with at least one, and preferably three, degrees of freedom, to act on the series of blanks about to be withdrawn by the separating device.
  8. Modular magazine according to Claim 5, characterized by adjustable stack rests 6 acting only on one side, or only on opposite sides, of the blanks.
  9. Modular magazine according to Claim 5 for a sheet metal blank processing machine with means for supporting the modular magazine in a defined position with respect to the separating device, characterized by spacer elements to cooperate with the means (5) for supporting the magazine for a predetermined position of the frame with respect to the separating device.
  10. Modular magazine according to Claim 9, characterized in that the spacer elements are formed as vertically adjustable setting screws (5) mounted in the frame (4).
  11. Sheet metal processing machine, in particular a can body welding machine, with a modular magazine according to Claim 5.
EP95117459A 1994-11-28 1995-11-06 Process for putting a can welding machine into operation or for converting the same, and a modular magazine for implementing the process Expired - Lifetime EP0714839B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH357594 1994-11-28
CH3575/94 1994-11-28
CH388194 1994-12-22
CH3881/94 1994-12-22

Publications (2)

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EP0714839A1 EP0714839A1 (en) 1996-06-05
EP0714839B1 true EP0714839B1 (en) 1998-08-05

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US (1) US5746571A (en)
EP (1) EP0714839B1 (en)
JP (1) JP2786413B2 (en)
KR (1) KR960016992A (en)
CN (1) CN1071693C (en)
BR (1) BR9505534A (en)
DE (1) DE59503065D1 (en)
RU (1) RU2196669C2 (en)

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JPH08206759A (en) 1996-08-13
JP2786413B2 (en) 1998-08-13
CN1137476A (en) 1996-12-11
KR960016992A (en) 1996-06-17
CN1071693C (en) 2001-09-26
DE59503065D1 (en) 1998-09-10
RU2196669C2 (en) 2003-01-20
BR9505534A (en) 1997-11-04
US5746571A (en) 1998-05-05
EP0714839A1 (en) 1996-06-05

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