EP2152445B1 - Method and device for adjusting a flexing station during the bending of sheet metal - Google Patents

Method and device for adjusting a flexing station during the bending of sheet metal Download PDF

Info

Publication number
EP2152445B1
EP2152445B1 EP08733800A EP08733800A EP2152445B1 EP 2152445 B1 EP2152445 B1 EP 2152445B1 EP 08733800 A EP08733800 A EP 08733800A EP 08733800 A EP08733800 A EP 08733800A EP 2152445 B1 EP2152445 B1 EP 2152445B1
Authority
EP
European Patent Office
Prior art keywords
metal sheet
flexer
impact position
station
rounding
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.)
Active
Application number
EP08733800A
Other languages
German (de)
French (fr)
Other versions
EP2152445A1 (en
Inventor
Peter Hug
Daniel Dieterich
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.)
Soudronic AG
Original Assignee
Soudronic AG
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 Soudronic AG filed Critical Soudronic AG
Publication of EP2152445A1 publication Critical patent/EP2152445A1/en
Application granted granted Critical
Publication of EP2152445B1 publication Critical patent/EP2152445B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/26—Making hollow objects characterised by the use of the objects cans or tins; Closing same in a permanent manner
    • B21D51/2676—Cans or tins having longitudinal or helical seams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/14—Bending sheet metal along straight lines, e.g. to form simple curves by passing between rollers

Definitions

  • the invention relates to a method for setting a flexer station for the pretreatment of metal sheets prior to rounding thereof, wherein in the flexer station a desired impact position of the metal sheet on a measuring plate serves as a measure for the adjustment of at least one adjustable element of the flexer station.
  • the invention further relates to an application of the method when welding container frames.
  • the invention relates to a flexer station with at least one adjustable flexer element.
  • the invention relates to a round apparatus with such a flexer station and a welding apparatus for the production of Be fiscalerzargen with such a round apparatus.
  • This process may need to be repeated several times until the correct setting is found or the correct rounding is achieved for the subsequent rounding station of the rotary apparatus.
  • screws When adjusting the wedge, screws must be loosened, some of which can be difficult to access, and in most cases, round wedges must also be removed, so that the place of impact of the sheet on the measuring plate is clearly visible.
  • Methods and devices of the type mentioned are generally used in the sheet metal industry for the rounding of sheets, but especially in the production of container frames, especially can bodies, made of sheet metal.
  • the Be fiscalerzargen blanks are transported to the rounding directly into a welding machine for welding the longitudinal seam of the frame.
  • the stacking of the sheets, the round apparatus and the welding machine form a unit.
  • Corresponding plants for can production are for example DE-A-33 30 171 or from the mentioned US-A-5,209,625 known.
  • the rounding takes place in such a way that the can body formed can be guided directly into the Z-rail used for the seam overlap.
  • the rectangular cut sheet metal sections with defined dimensions and material properties recorded in standards are pushed by a slide-in system into a first, driven transport roller pair, of several driven transport rollers at a speed of 100-450 m / min. transported further and bent in the round apparatus with a round system with the help of wedges with rollers or with roller systems to a round frame.
  • a slide-in system into a first, driven transport roller pair, of several driven transport rollers at a speed of 100-450 m / min. transported further and bent in the round apparatus with a round system with the help of wedges with rollers or with roller systems to a round frame.
  • an advance plastic deformation as explained.
  • the inventive method eliminates the manual spinning of the sheet through the round apparatus or the flexer station, as determined by the sensor arrangement, the impact position in motor operation.
  • the actual impact position or actual impact position on the measuring plate can be displayed on a display device, wherein preferably also the desired position is superimposed.
  • the operator can then manually set an adjustable element of the flexer station so that the deviation from the target impact position is lower and zero possible.
  • the target impact position is known in the art and depends on the sheet to be rounded and the rounding speed.
  • a signal derived therefrom can be displayed, eg directly a numerical value for the adjustment of an adjustable element of the flexer station.
  • the signal representing the impact position can be used to automatically set an element of the pretreatment by the flexer station. In any case, a lesser amount of time, since the impact position no longer needs to be determined by the operator visually on the measuring plate itself and the necessary expansion of round elements (wedges) is avoided.
  • the method of adjusting the flexer station is preferably used when rounding container frames for their welding on electric resistance seam welding machines, wherein individual sheet metal sections in series and at high speed of 100-450 m / min go through the flexer station and the round station and then the welding device. Accordingly, the adjustment is also made on the basis of an impact position, which has been determined with the speed corresponding to the later speed in the rounding in series production.
  • the object is achieved in that the flexer station has a sensor arrangement and a control by which the impact position of the test sheet on the measuring plate in the motor-driven sheet metal pass through the flexer station can be determined, whereby a signal representing the position is provided by that the impact position or a value derived therefrom can be displayed on a display device, and / or by the pretreatment of the sheets in the flexer station determining element thereof by the controller and a drive is adjustable so that a deviation from the target impact position is reduced.
  • the invention further relates to a round apparatus with such a flexer station and a welder for Be marryerzargen with such a round apparatus.
  • the rounded Be Strukturerzargen-blanks are fed from the rounding machine of a welding device for can bodies with welding rollers, in particular with thereon running wire intermediate electrodes, and a Z-rail for positioning the Zargenkanten.
  • the measurement of the impact position therefore takes place at a flow rate in the range of 100 to 450 m / min. to determine the impact position at operating speed.
  • a flexor wedge following the flexer rollers is preferably set on the basis of the signal.
  • the measurement of the impact position is preferably carried out electrically by electrical contact production on the measuring plate by the impinging sheet.
  • FIGS. 1 and 2 show schematically in side view embodiments of the present invention, wherein as an example the setting of a flex station in a rounding machine for the rounding of successive sheet metal sections is shown, as it is used in the series production of container frame blanks or when welding container frames, in particular can bodies ,
  • the invention can also be used for the setting of flexer stations in any other rounding operations or round machines.
  • sheet metal sections of which the sections 1 and 2 are shown as examples, are stacked by a stack 10 and fed into a transport device 3, which serves as a feed line for a rounding machine 4, which has the flexer station.
  • the sheets pass through this arrangement of feed line and rounding machine in the direction of arrow A.
  • the stacking of the stack 10 and the introduction into the transport device 3 is here, since this is known in the art, not further explained.
  • the transport device 3 is also considered to be optional, although preferred, so that the sheets could also be dispensed directly from the stack 10 into the rounding machine 4.
  • the transport device 3 is equipped with a plurality of roller pairs, which promote the respective sheet metal section to the input 19 of the rotary apparatus 4, where in this example the flexer station 50 begins with a first element 20.
  • the promotion could also be carried out in other ways than with the roller pairs shown.
  • each sheet metal section is rounded to a frame blank, as can be seen for the front part of the sheet metal section 2 in the direction of passage.
  • the rounding is done with a predetermined by the setting of the rounding machine Sollrundungsradius and leads to the rounding radius R; this with a rounding speed VR of eg 100 to 450 m / minute, in particular when rounding can body blanks.
  • Round machines are known in various embodiments, especially for can bodies, the round machine can be provided in a simple form as two-roll rounding machine with the two rollers 11 and 12. Also round machines with a plurality of rollers are known, such as from EP-A-1 197 272 , Preferably, the rotary apparatus is controllable in its setting for determining the rounding in the rounding operation. In the present embodiment, it is shown that a Vorrundkeil 14 may be provided in front of the round rollers 11 and 12. Likewise, a round wedge 13 may be provided after the round rollers 11, 12. Before the actual rounding station of the rotary apparatus 4, the flexer station 50 is provided, which in the embodiment shown is part of the round apparatus, which could also be a separate station.
  • the flexer station has the rollers 9 and 8 and the flexing wedge 7, which acts on the plate emerging from the rollers, as well as the mentioned wedge 20 at the entrance of the flexer station.
  • the flexer station is used for pretreatment and removal of stresses in the sheet, as explained and eg from the above-mentioned US 5,209,625 known.
  • At least one element of the flexer station is adjustable to adapt to the sheet material to be rounded and the rounding speed, which is known, wherein the setting before the beginning of the actual Rounding operation or in the case of Be dockerzargen before the series production takes place.
  • This element can be manually adjustable, as known, or a controllable motorized adjustment can be provided. Preference is given to the setting of the mentioned flexor wedge.
  • the preferably driven adjustable elements of the flexer station, and possibly also rounding elements of the rounding machine are provided with drives (hereinafter called actuators), which can move these elements within their usual adjustment options to allow the control of the flexer station setting.
  • the influence of the actuators on the elements of the flexer station and, if provided, also on the elements of the round machine is symbolized in the figures by an outgoing from the actuator arrow into the respective element, the movement of the element by another arrow.
  • the connection of the actuators with the controller 5 is symbolized by lines 40.
  • the flexi wedge 7 is moved by the actuator 6 in the direction of the arrow B. This also corresponds to the manual adjustability of the wedge, if no actuator is provided for the adjustment. If according to FIG. 2 an adjustment of the flex roller 9 is provided, it is done by an actuator 29 in the directions of the arrow C, or at most manually in a corresponding manner.
  • the preliminary circular wedge 14 can be moved by the actuator 15 in the direction of the arrow E.
  • a distance between them determining drive can be provided, which acts on one or both of the rollers and which is shown as an actuator 16 schematically.
  • the actuator 17 can act on the circular wedge 13 in order to move it in the direction of the arrow D. All of these actuators can be provided or only one of them and any combinations are possible.
  • the sheet 1 located therein for pretreatment reaches the target impact position x on the measuring plate 38.
  • This desired impact position is known in the prior art for a given sheet material and an intended rounding speed in the subsequent rounding station of the rounding machine. If the sheet reaches the impact position x on the measuring plate 38 in the Flexerstation 50 at the intended speed for the rounding, the setting of the flexer station is correct. If the sheet metal 1 hits too early, for example at the impact position y, as shown by a broken line, an element of the flexer station 50 must be adjusted in order to place the impact position as close as possible to the point x.
  • the flexi wedge 7 is adjusted, in this example, an adjustment in the directions of the arrow B is possible. This can be done manually or by the actuator 6.
  • This actuator can be controlled manually or preferably by the controller 5 of the flexer station, which may also be the control of the rounding machine.
  • the adjustment of the flexi wedge 7 can be an adjustment of the flex roller 9 or 8 and / or the wedge 20 occur, which is known in principle to those skilled and what is not explained here.
  • the impact position of the sheet on the measuring plate is now determined by a measuring device with a sensor arrangement.
  • This can be any sensor arrangement which can determine the position of the sheet at which it impinges on the measuring plate.
  • the sensor arrangement can determine the position, for example by means of ultrasonic distance sensors or by means of optical Sensors, such as photoelectric sensors, or by taking a picture and image processing.
  • the determination of the impact position by an electrical contact of the sheet on the measuring plate 38.
  • the time is determined until the sheet - starting from a certain initial position - impinges on the measuring plate.
  • the time is a measure of the impact position.
  • the measuring device has at least one sensor 45, with which the arrival of the respective sheet 1 can be detected at or in the measuring device.
  • the front edge of the sheet in the transport direction A is detected, in particular by an optical sensor, in particular a light barrier or a plurality of light barriers. This detection of the sheet 1 starts a time measurement at time t 0 in the measuring device.
  • time measuring means This can be done by a separate time measuring means or by the controller 5, which has already been mentioned, and which controls in this case, the measuring device or is part of the same and receives the sensor signal of the sensor 45.
  • FIG. 2 shows the time measurement is terminated at time t 1 at which the leading edge of the sheet strikes the measuring plate 38, which is reported to the controller 5 via a line 38 '.
  • the time t 1 is different according to the setting of the flexer station and thus provides a measure of their adjustment.
  • the time t 1 would be shorter if the time measurement would be terminated when hitting the point y or longer, if they would be terminated by the impact at the point y '.
  • the determined by the measuring device time can thus be converted to the position of the impact position, since the transport speed of the sheet is known by the flexer station.
  • the measuring device, or in this example the controller 5, can thus represent the impact position on a display 25, which will be explained in more detail and if necessary via at least one actuator of the flexer station cause a corrective adjustment of an element of the flexer station, if the measured impact position deviates from the desired impact position.
  • the detection of the impact of the leading edge of the sheet on the measuring plate 38 of the measuring device is preferably carried out electrically. This can be done so that the measuring plate 38 is at a first electrical potential and at least one of the rollers 8, 9 at a different electrical potential and possibly also the flex key 7 is at the electric potential of the roller. If the leading edge of the electrically conductive sheet meets the measuring plate 38, the two potentials are short-circuited, which can be determined by a corresponding current flow or a corresponding voltage drop of the measuring voltage. Thus, the time measurement is stopped or the time between detection of the leading edge by the sensor 45 and the impact of the leading edge is determined on the measuring plate 38 and thus the impact position of the sheet in the flexer 50. For coated sheets, the electrical contact between the rollers.
  • the measuring plate 38 is preferably designed with a plurality of measuring elements 38a, 38b, 38c, 38d, etc., which are electrically insulated from one another and which also alternately lie at the different electrical potentials.
  • the impact on the measuring plate 38 is electrically detectable.
  • These parts may be wedge-shaped, as in FIGS. 2 and 3 seen.
  • FIG. 3 shows some of the adjacent measuring wedges in a diagrammatic representation.
  • FIG. 4 shows a corresponding measuring circuit with a measuring voltage source U s
  • the rollers 8 and 9 of the flexer 7 are at ground potential.
  • the measuring wedges 38b, 38d, etc. are at ground potential.
  • the measuring wedges 38a, 38c, etc. in FIG. 4 only 38a is shown.
  • the voltage drop detection is indicated by the voltmeter symbols in FIG. 4 represented and can be done in any manner known in the art by the measuring device or in this example, in particular by the controller 5.
  • the electrical resistance R is chosen so large that the short-circuit current remains within a desired limit.
  • the impact position is displayed on the optical display 25, which may be a screen or other display device.
  • the optical display 25 may be a screen or other display device.
  • This can for example be done so that a line is displayed, which corresponds to the, at most shortened, longitudinal extent of the measuring plate on which a point is displayed, which corresponds to the impact position.
  • the operator thus receives the same information per se, which is available in the prior art by exposing the measuring plate and their visual inspection when hitting the sheet. The operator can then judge whether the point of impact is at the desired location or not and, if necessary, manually adjust an element of the flexer station, in particular the flex key 7.
  • the display also shows the target impact position x or an allowable one Range is displayed so that the operator the actual impact position, such as y or y ', can easily relate.
  • a derived value displayed for example, a value by which an element of the flexer station must be manually adjusted to move from the achieved actual impact position to the target impact position.
  • a value of +5 can be displayed if the flex key 7 has to be adjusted by 5 units on the basis of a scale located there.
  • the measuring device in particular the controller 5, can calculate this derived display value +5 from the deviation of the measured actual impact position from the target impact position.
  • the operator can adjust the flexer element by means of a motor drive or by means of an actuator, wherein, however, the control of the actuator is performed by the operator.
  • a feedback of the actuator to the controller 5 an indication of the setting on the display 25, so that the operator can control whether it performs the adjustment properly as reducing the deviation of the actual impact position of the target impact position. It can also be closed from the impact position on the obtained rounding and these are displayed as a derived value.
  • the adjustment of the flexer element is not made manually, but directly via the actuator by the controller 5 in dependence on the difference between the measured actual impact position for target impact position.
  • the flexi wedge 7 can be pivoted by the controller 5 by means of the actuator 6 upwards to move the actual impact position for the next sheet from the position y to the position x. By another test sheet, the correct adjustment of the flexure wedge can then be verified.
  • the controller can also influence the rounding itself via the actuators for the elements of the round station of the round machine.
  • the method and the device are used in particular for the welding of can bodies.

Abstract

During the bending of sheet metal sections (1, 2) for forming can bodies by means of a bending machine, the sheet metal characteristics of the individual sheets are measured, e.g. the thickness and/or the strength of the sheets. The measured value is used to control the bending machine (4). This permits a substantially constant bending result to be achieved, even with varying sheet metal characteristics.

Description

Hintergrund der ErfindungBackground of the invention

Die Erfindung betrifft ein Verfahren zur Einstellung einer Flexerstation für die Vorbehandlung von Blechen vor dem Runden derselben, wobei in der Flexerstation eine Soll-Auftreffposition des Bleches auf eine Messplatte als Mass für die Einstellung mindestens eines einstellbaren Elementes der Flexerstation dient. Die Erfindung betrifft ferner eine Anwendung des Verfahrens beim Schweissen von Behälterzargen. Weiter betrifft die Erfindung eine Flexerstation mit mindestens einem einstellbaren Flexerelement. Weiter betrifft die Erfindung einen Rundapparat mit einer solchen Flexerstation und eine Schweissvorrichtung zur Herstellung von Behälterzargen mit einem solchen Rundapparat.The invention relates to a method for setting a flexer station for the pretreatment of metal sheets prior to rounding thereof, wherein in the flexer station a desired impact position of the metal sheet on a measuring plate serves as a measure for the adjustment of at least one adjustable element of the flexer station. The invention further relates to an application of the method when welding container frames. Furthermore, the invention relates to a flexer station with at least one adjustable flexer element. Furthermore, the invention relates to a round apparatus with such a flexer station and a welding apparatus for the production of Behälterzargen with such a round apparatus.

Stand der TechnikState of the art

Beim Runden von Blechen zur Bildung von Behälterzargen-Rohlingen ist es bekannt, vor den eigentlichen Rundelementen des Rundapparates eine so genannte Flexerstation anzuordnen. In dieser erfolgt eine Vorrundung jedes Bleches, welche aber in der Flexerstation grösstenteils wieder rückgängig gemacht wird. Durch dieses Biegen und Zurückbiegen, bzw. Vorrunden und Zurückrunden, werden Spannungen aus den Blechen entfernt, die bei der eigentlichen Rundung in der Rundmaschine das Resultat beeinträchtigen könnten. Der in Transportrichtung vordere Bereich der Bleche wird indes in der Regel nicht zurück gerundet, sondern behält die Vorrundung aus der Flexerstation, um das Rundungsergebnis der Rundmaschine zu verbessern. In US-A-5 209 625 ist eine solche Vorrund- bzw. Flexerstation mit Walzen 16 und 17 und einem Vorrundelement 21 dargestellt, wobei ein Tisch 20 mit einer Abdeckung 22 die Vorrundung wieder rückgängig macht, ausser im Bereich der in Transportrichtung vorderen Kante des Bleches. Es ist indes auch bekannt - und nachfolgend auch so dargestellt - dass ein Flexerkeil nach dem Vorrunden das Zurückbiegen übernimmt. Nach Stand der Technik erfolgt die Grundeinstellung der Flexerstation, und dabei insbesondere des Flexerkeils, manuell. Ein Testblech wird durch manuelles Drehen des ganzen Rundapparates durch die Flexerstation transportiert und muss in einem bestimmten Bereich auf eine Platte auftreffen. Ist dies nicht der Fall, so muss die Position des Flexerkeils verändert werden. Dieser Vorgang muss eventuell mehrmals wiederholt werden, bis die richtige Einstellung gefunden ist bzw. die richtige Vorrundung für die nachfolgende Rundstation des Rundapparates erzielt wird. Bei Einstellung des Flexerkeils müssen Schrauben gelöst werden, die zum Teil schwer zugänglich sein können und meistens müssen auch Rundkeile ausgebaut werden, damit der Auftreff-Ort des Bleches auf der Messplatte gut sichtbar wird.When rounding sheets to form Behälterzargen blanks, it is known to arrange a so-called flexer station before the actual round elements of the round apparatus. In this there is a rounding of each sheet, which is largely reversed in the Flexerstation. This bending and bending back, or rounding and rounding back, tensions are removed from the sheets, which could affect the result of the actual rounding in the round machine. The front of the sheets in the transport direction, however, is usually not rounded back, but retains the primer from the flexer station to improve the rounding result of the round machine. In US-A-5,209,625 Such a Vorrund- or flexer station with rollers 16 and 17 and a Vorrundelement 21 is shown, wherein a table 20 with a Cover 22 makes the rounding back, except in the area of the front edge of the sheet in the transport direction. However, it is also known - and also shown below - that a Flexerkeil takes over after the rounding back bending. According to the prior art, the basic setting of the flexer station, and in particular the flexer wedge, takes place manually. A test sheet is transported by manually rotating the entire round apparatus through the flex station and must hit a plate in a particular area. If this is not the case, the position of the wedge must be changed. This process may need to be repeated several times until the correct setting is found or the correct rounding is achieved for the subsequent rounding station of the rotary apparatus. When adjusting the wedge, screws must be loosened, some of which can be difficult to access, and in most cases, round wedges must also be removed, so that the place of impact of the sheet on the measuring plate is clearly visible.

Verfahren und Vorrichtungen der genannten Art werden generell in der Blech verarbeitenden Industrie beim Runden von Blechen, insbesondere aber bei der Herstellung von Behälterzargen, insbesondere Dosenzargen, aus Blech verwendet. Die Behälterzargen-Rohlinge werden dazu nach der Rundung direkt in eine Schweissmaschine zur Schweissung der Längsnaht der Zarge transportiert. Dabei bilden in der Regel die Abstapelung der Bleche, der Rundapparat und die Schweissmaschine eine Einheit. Entsprechende Anlagen für die Dosenherstellung sind z.B. aus DE-A-33 30 171 oder aus der genannten US-A-5 209 625 bekannt. Die Rundung erfolgt dabei so, dass die gebildete Dosenzarge direkt in die für die Nahtüberlappung verwendete Z-Schiene geführt werden kann. Für die Rundung werden die rechteckig zugeschnittenen Blechabschnitte mit definierten Abmessungen und in Normen festgehaltenen Materialeigenschaften von einem Einschubsystem in ein erstes, angetriebenes Transportwalzenpaar geschoben, von mehreren angetriebenen Transportwalzen mit einer Geschwindigkeit von 100-450 m/Min. weitertransportiert und im Rundapparat mit einem Rundsystem mit Hilfe von Keilen mit Walzen oder mit Walzensystemen zu einer runden Zarge gebogen. Dabei erfolgt mittels der Elemente einer Flexerstation eine vorgängige plastische Verformung, wie erläutert.Methods and devices of the type mentioned are generally used in the sheet metal industry for the rounding of sheets, but especially in the production of container frames, especially can bodies, made of sheet metal. The Behälterzargen blanks are transported to the rounding directly into a welding machine for welding the longitudinal seam of the frame. As a rule, the stacking of the sheets, the round apparatus and the welding machine form a unit. Corresponding plants for can production are for example DE-A-33 30 171 or from the mentioned US-A-5,209,625 known. The rounding takes place in such a way that the can body formed can be guided directly into the Z-rail used for the seam overlap. For rounding, the rectangular cut sheet metal sections with defined dimensions and material properties recorded in standards are pushed by a slide-in system into a first, driven transport roller pair, of several driven transport rollers at a speed of 100-450 m / min. transported further and bent in the round apparatus with a round system with the help of wedges with rollers or with roller systems to a round frame. In this case, by means of the elements of a Flexerstation an advance plastic deformation, as explained.

Darstellung der ErfindungPresentation of the invention

Es ist Aufgabe der Erfindung die genannten Nachteile bei der Einstellung einer Flexerstation zu vermeiden.It is an object of the invention to avoid the disadvantages mentioned when setting a flexer station.

Dies wird bei den Verfahren der eingangs genannten Art dadurch erreicht, dass die Auftreffposition eines Testbleches auf der Messplatte beim motorisch angetriebenen Blechdurchlauf durch die Flexerstation durch eine Sensoranordnung festgestellt wird, wodurch ein die Auftreffposition darstellendes Signal bereitgestellt wird, womit auf einer Anzeigeeinrichtung die Auftreffposition oder ein davon abgeleiteter Wert dargestellt wird und/oder womit ein die Vorrundung der Flexerstation bestimmendes Element derselben durch deren Steuerung und einen Antrieb derart eingestellt wird, dass eine Abweichung von der Soll-Auftreffposition vermindert wird.This is achieved in the method of the aforementioned type, characterized in that the impact position of a test sheet is determined on the measuring plate in the motor-driven sheet metal pass through the flexer station by a sensor arrangement, whereby a Auflagreffstellstellendes signal is provided, which on a display device the impact position or a derived therefrom value is shown and / or with which a preliminary rounding of the flexer-determining element thereof by their control and a drive is set such that a deviation from the desired impact position is reduced.

Durch das erfindungsgemässe Vorgehen entfällt das manuelle Durchdrehen des Bleches durch den Rundapparat bzw. die Flexerstation, da durch die Sensoranordnung die Auftreffposition im motorischen Betrieb festgestellt wird. Die tatsächliche Auftreffposition bzw. Ist-Auftreffposition auf der Messplatte kann auf einer Anzeigevorrichtung dargestellt werden, wobei vorzugsweise auch die Sollposition eingeblendet wird. Mit der Information der Auftreffposition kann die Bedienungsperson dann ein einstellbares Element der Flexerstation manuell so einstellen, dass die Abweichung von der Soll-Auftreffposition geringer und möglichst Null wird. Dabei kann die erwähnte Darstellung der Soll-Auftreffposition auf der Anzeige hilfreich sein. Die Soll-Auftreffposition ist nach Stand der Technik bekannt und abhängig vom zu rundenden Blech und der Rundungsgeschwindigkeit. Anstelle der Auftreffposition kann ein davon abgeleitetes Signal dargestellt werden, z.B. direkt ein Zahlenwert für die Verstellung eines einstellbaren Elementes der Flexerstation. Zusätzlich oder alternativ zur Anzeige kann durch das die Auftreffposition darstellende Signal eine automatische Einstellung eines die Vorbehandlung durch die Flexerstation bestimmenden Elementes derselben erfolgen. In jedem Fall ergibt sich ein geringerer Zeitaufwand, da die Auftreffposition nicht mehr durch die Bedienungsperson visuell auf der Messplatte selber festgestellt werden muss und der dafür notwendige Ausbau von Rundelementen (Keilen) vermieden wird.The inventive method eliminates the manual spinning of the sheet through the round apparatus or the flexer station, as determined by the sensor arrangement, the impact position in motor operation. The actual impact position or actual impact position on the measuring plate can be displayed on a display device, wherein preferably also the desired position is superimposed. With the information of the impact position, the operator can then manually set an adjustable element of the flexer station so that the deviation from the target impact position is lower and zero possible. there the aforementioned representation of the target impact position on the display can be helpful. The target impact position is known in the art and depends on the sheet to be rounded and the rounding speed. Instead of the impact position, a signal derived therefrom can be displayed, eg directly a numerical value for the adjustment of an adjustable element of the flexer station. In addition or as an alternative to the display, the signal representing the impact position can be used to automatically set an element of the pretreatment by the flexer station. In any case, a lesser amount of time, since the impact position no longer needs to be determined by the operator visually on the measuring plate itself and the necessary expansion of round elements (wedges) is avoided.

Das Verfahren zur Einstellung der Flexerstation wird vorzugsweise beim Runden von Behälterzargen für deren Schweissung auf elektrischen Widerstandsnahtschweissmaschinen angewendet, wobei einzelne Blechabschnitte in Serie und mit hoher Geschwindigkeit von 100-450 m/Min die Flexerstation und die Rundstation und dann die Schweissvorrichtung durchlaufen. Entsprechend erfolgt die Einstellung ebenfalls auf Grund einer Auftreffposition, welche mit der Geschwindigkeit ermittelt worden ist, die der späteren Geschwindigkeit bei der Rundung in der Serienproduktion entspricht.The method of adjusting the flexer station is preferably used when rounding container frames for their welding on electric resistance seam welding machines, wherein individual sheet metal sections in series and at high speed of 100-450 m / min go through the flexer station and the round station and then the welding device. Accordingly, the adjustment is also made on the basis of an impact position, which has been determined with the speed corresponding to the later speed in the rounding in series production.

Bei den eingangs genannten Vorrichtungen wird die Aufgabe dadurch gelöst, dass die Flexerstation eine Sensoranordnung und eine Steuerung aufweist, durch welche die Auftreffposition des Testbleches auf der Messplatte beim motorisch angetriebenen Blechdurchlauf durch die Flexerstation feststellbar ist, wodurch ein die Position darstellendes Signal bereitgestellt wird, durch das auf einer Anzeigeeinrichtung die Auftreffposition oder ein davon abgeleiteter Wert darstellbar ist, und/oder durch das ein die Vorbehandlung der Bleche in der Flexerstation bestimmendes Element derselben durch die Steuerung und einen Antrieb derart einstellbar ist, dass eine Abweichung von der Soll-Auftreffposition vermindert wird.In the devices mentioned above, the object is achieved in that the flexer station has a sensor arrangement and a control by which the impact position of the test sheet on the measuring plate in the motor-driven sheet metal pass through the flexer station can be determined, whereby a signal representing the position is provided by that the impact position or a value derived therefrom can be displayed on a display device, and / or by the pretreatment of the sheets in the flexer station determining element thereof by the controller and a drive is adjustable so that a deviation from the target impact position is reduced.

Damit ergeben sich die anhand des Verfahrens erläuterten Vorteile.This results in the advantages explained by the method.

Die Erfindung betrifft weiter einen Rundapparat mit einer solchen Flexerstation sowie eine Schweissvorrichtung für Behälterzargen mit einem solchen Rundapparat.The invention further relates to a round apparatus with such a flexer station and a welder for Behälterzargen with such a round apparatus.

Der Rundapparat bzw. Rundmaschine zur Bildung von Behälterzargenrohlingen ist, insbesondere für die Bildung von Dosenzargenrohlingen, zur Rundung mit einer Geschwindigkeit von 100 bis 450 m/Minute ausgestaltet. Die gerundeten Behälterzargen-Rohlinge werden aus der Rundmaschine einer Schweissvorrichtung für Dosenzargen mit Schweissrollen, insbesondere mit darauf laufenden Drahtzwischenelektroden, und einer Z-Schiene zur Positionierung der Zargenkanten zugeführt. Die Messung der Auftreffposition erfolgt daher mit einer Durchlaufgeschwindigkeit im Bereich von 100 bis 450 m/Min. um die Auftreffposition bei Betriebsgeschwindigkeit festzustellen. Bevorzugt wird als einstellbares Flexerelement ein auf die Flexerwalzen folgender Flexerkeil auf Grund des Signales eingestellt. Die Messung der Auftreffposition erfolgt vorzugsweise elektrisch durch elektrische Kontaktherstellung auf der Messplatte durch das auftreffende Blech.The round apparatus or rounding machine for the formation of container frame blanks, in particular for the formation of can body blanks, designed for rounding at a speed of 100 to 450 m / minute. The rounded Behälterzargen-blanks are fed from the rounding machine of a welding device for can bodies with welding rollers, in particular with thereon running wire intermediate electrodes, and a Z-rail for positioning the Zargenkanten. The measurement of the impact position therefore takes place at a flow rate in the range of 100 to 450 m / min. to determine the impact position at operating speed. As an adjustable flexer element, a flexor wedge following the flexer rollers is preferably set on the basis of the signal. The measurement of the impact position is preferably carried out electrically by electrical contact production on the measuring plate by the impinging sheet.

Kurze Beschreibung der ZeichnungenBrief description of the drawings

Weitere Ausgestaltungen, Vorteile und Anwendungen der Erfindung ergeben sich aus den abhängigen Ansprüchen und aus der nun folgenden Beschreibung anhand der Figuren. Dabei zeigt

  • Figur 1 schematisch eine Vorrichtung zum Runden von Behälterzargen mit einer Flexerstation;
  • Figur 2 schematisch eine Flexerstation zur Erläuterung von Ausführungsformen der Erfindung; .
  • Figur 3 eine perspektivische teilweise Darstellung der Messeinrichtung von Figur 2; und
  • Figur 4 eine Darstellung der elektrischen Beschaltung der Messeinrichtung der Figuren 2 und 3.
Further embodiments, advantages and applications of the invention will become apparent from the dependent claims and from the following description with reference to FIGS. It shows
  • FIG. 1 schematically a device for rounding Behälterzargen with a flexer station;
  • FIG. 2 schematically a flexer station for explaining embodiments of the invention; ,
  • FIG. 3 a perspective partial view of the measuring device of FIG. 2 ; and
  • FIG. 4 a representation of the electrical wiring of the measuring device of FIGS. 2 and 3 ,

Wege zur Ausführung der ErfindungWays to carry out the invention

Die Figuren 1 und 2 zeigen schematisch in Seitenansicht Ausführungsformen der vorliegenden Erfindung, wobei als Beispiel die Einstellung einer Flexerstation in einer Rundmaschine für das Runden von aufeinander folgenden Blechabschnitten dargestellt ist, wie sie bei der Serienproduktion von Behälterzargen-Rohlingen bzw. beim Schweissen von Behälterzargen, insbesondere Dosenzargen, verwendet wird. Die Erfindung kann aber auch für die Einstellung von Flexerstationen bei beliebigen anderen Rundungsvorgängen bzw. Rundmaschinen verwendet werden.The FIGS. 1 and 2 show schematically in side view embodiments of the present invention, wherein as an example the setting of a flex station in a rounding machine for the rounding of successive sheet metal sections is shown, as it is used in the series production of container frame blanks or when welding container frames, in particular can bodies , The invention can also be used for the setting of flexer stations in any other rounding operations or round machines.

Im gezeigten Beispiel ist ersichtlich, dass Blechabschnitte, von denen als Beispiele die Abschnitte 1 und 2 dargestellt sind, von einem Stapel 10 abgestapelt und in eine Transporteinrichtung 3 gegeben werden, welche als Zuführstrecke für eine Rundmaschine 4 dient, welche die Flexerstation aufweist. Die Bleche durchlaufen dabei diese Anordnung aus Zuführstrecke und Rundmaschine in Richtung des Pfeils A. Die Abstapelung vom Stapel 10 und das Einbringen in die Transporteinrichtung 3 wird hier, da dies dem Fachmann bekannt ist, nicht näher erläutert. Die Transporteinrichtung 3 ist ferner als fakultativ, wenn auch bevorzugt, anzusehen, so dass die Bleche auch direkt vom Stapel 10 in die Rundmaschine 4 abgegeben werden könnten. In der dargestellten Ausführungsform ist die Transporteinrichtung 3 mit mehreren Walzenpaaren ausgerüstet, welche den jeweiligen Blechabschnitt an den Eingang 19 des Rundapparates 4 fördern, wo in diesem Beispiel die Flexerstation 50 mit einem ersten Element 20 beginnt. Die Förderung könnte auch auf andere Weise ausgeführt werden als mit den dargestellten Walzenpaaren. Im Rundapparat bzw. in der Rundmaschine 4 wird jeder Blechabschnitt zu einem Zargen-Rohling gerundet, wie dies für den in Durchlaufrichtung vorderen Teil des Blechabschnitts 2 ersichtlich ist. Die Rundung erfolgt dabei mit einem durch die Einstellung der Rundmaschine vorgegebenen Sollrundungsradius und führt zum Rundungsradius R; dies mit einer Rundungsgeschwindigkeit VR von z.B. 100 bis 450 m/Minute, insbesondere beim Runden von DosenzargenRohlingen. Rundmaschinen sind in vielfältiger Ausführungsform bekannt, insbesondere auch für Dosenzargen, wobei die Rundmaschine in einfacher Form als Zweiwalzen-Rundmaschine mit den beiden Walzen 11 und 12 vorgesehen sein kann. Auch Rundmaschinen mit einer Mehrzahl von Walzen sind bekannt, so z.B. aus der EP-A-1 197 272 . Vorzugsweise ist der Rundapparat in seiner Einstellung zur Festlegung der Rundung im Rundungsbetrieb steuerbar. Im vorliegenden Ausführungsbeispiel ist gezeigt, dass vor den Rundwalzen 11 und 12 ein Vorrundkeil 14 vorgesehen sein kann. Ebenso kann ein Rundkeil 13 nach den Rundwalzen 11, 12 vorgesehen sein. Vor der eigentlichen Rundungsstation des Rundapparates 4 ist die Flexerstation 50 vorgesehen, welche in der gezeigten Ausführungsform Teil des Rundapparates ist, welche aber auch eine separate Station sein könnte. In dem gezeigten Beispiel weist die Flexerstation die Walzen 9 und 8 sowie den Flexerkeil 7 auf, welcher auf das aus den Walzen austretende Blech einwirkt, sowie den erwähnten Keil 20 am Eingang der Flexerstation. Die Flexerstation dient zur Vorbehandlung und zur Entfernung von Spannungen im Blech, wie erläutert und z.B. aus der eingangs genannten US 5,209,625 bekannt.In the example shown, it can be seen that sheet metal sections, of which the sections 1 and 2 are shown as examples, are stacked by a stack 10 and fed into a transport device 3, which serves as a feed line for a rounding machine 4, which has the flexer station. The sheets pass through this arrangement of feed line and rounding machine in the direction of arrow A. The stacking of the stack 10 and the introduction into the transport device 3 is here, since this is known in the art, not further explained. The transport device 3 is also considered to be optional, although preferred, so that the sheets could also be dispensed directly from the stack 10 into the rounding machine 4. In the illustrated embodiment, the transport device 3 is equipped with a plurality of roller pairs, which promote the respective sheet metal section to the input 19 of the rotary apparatus 4, where in this example the flexer station 50 begins with a first element 20. The promotion could also be carried out in other ways than with the roller pairs shown. In the rotary apparatus or in the rounding machine 4, each sheet metal section is rounded to a frame blank, as can be seen for the front part of the sheet metal section 2 in the direction of passage. The rounding is done with a predetermined by the setting of the rounding machine Sollrundungsradius and leads to the rounding radius R; this with a rounding speed VR of eg 100 to 450 m / minute, in particular when rounding can body blanks. Round machines are known in various embodiments, especially for can bodies, the round machine can be provided in a simple form as two-roll rounding machine with the two rollers 11 and 12. Also round machines with a plurality of rollers are known, such as from EP-A-1 197 272 , Preferably, the rotary apparatus is controllable in its setting for determining the rounding in the rounding operation. In the present embodiment, it is shown that a Vorrundkeil 14 may be provided in front of the round rollers 11 and 12. Likewise, a round wedge 13 may be provided after the round rollers 11, 12. Before the actual rounding station of the rotary apparatus 4, the flexer station 50 is provided, which in the embodiment shown is part of the round apparatus, which could also be a separate station. In the example shown, the flexer station has the rollers 9 and 8 and the flexing wedge 7, which acts on the plate emerging from the rollers, as well as the mentioned wedge 20 at the entrance of the flexer station. The flexer station is used for pretreatment and removal of stresses in the sheet, as explained and eg from the above-mentioned US 5,209,625 known.

Mindestens ein Element der Flexerstation ist dabei zu deren Anpassung an das zu rundende Blechmaterial und die Rundungsgeschwindigkeit einstellbar, was bekannt ist, wobei die Einstellung vor Beginn des eigentlichen Rundungsbetriebes bzw. im Falle von Behälterzargen vor deren Serienherstellung erfolgt. Dieses Element kann manuell einstellbar sein, wie bekannt, oder es kann eine steuerbare motorische Einstellung vorgesehen werden. Bevorzugt ist die Einstellung des erwähnten Flexerkeils. Das oder die bevorzugt angetrieben einstellbaren Elemente der Flexerstation, und ggf. auch Rundungselemente der Rundmaschine, sind mit Antrieben versehen (nachfolgend Aktoren genannt), welche diese Elemente im Rahmen ihrer üblichen Einstellmöglichkeiten bewegen können, um der Steuerung der Flexerstation die Einstellung zu ermöglichen; der Einfluss der Aktoren auf die Elemente der Flexerstation und, sofern vorgesehen, auch auf die Elemente der Rundmaschine, ist in den Figuren durch einen vom Aktor ausgehenden Pfeil in das jeweilige Element symbolisiert, die Bewegung des Elementes durch einen weiteren Pfeil. Die Verbindung der Aktoren mit der Steuerung 5 ist durch Leitungen 40 symbolisiert. So wird der Flexerkeil 7 durch den Aktor 6 in Richtung des Pfeils B bewegt. Dies entspricht auch der manuellen Einstellbarkeit des Flexerkeils, falls kein Aktor für die Einstellung vorgesehen ist. Sofern gemäss Figur 2 eine Verstellung der Flexerwalze 9 vorgesehen ist, so erfolgt sie durch einen Aktor 29 in den Richtungen des Pfeils C, oder allenfalls manuell auf entsprechende Weise. Ist eine Verstellung des Keils 20 der Flexerstation vorgesehen, so erfolgt sie durch den Aktor 21 in Richtung des Pfeils d, oder entsprechend manuell. In der Rundstation kann der Vorrundkeil 14 durch den Aktor 15 in Richtung des Pfeils E bewegt werden. Für die Walzen 11 und 12 kann ein deren Abstand zueinander bestimmender Antrieb vorgesehen sein, welche auf eine oder auf beide der Walzen wirkt und welcher als Aktor 16 schematisch dargestellt ist. Ferner kann der Aktor 17 auf den Rundkeil 13 einwirken, um diesen im Sinne des Pfeiles D zu bewegen. Es können alle diese Aktoren vorgesehen sein oder nur einer derselben und beliebige Kombinationen sind möglich.At least one element of the flexer station is adjustable to adapt to the sheet material to be rounded and the rounding speed, which is known, wherein the setting before the beginning of the actual Rounding operation or in the case of Behälterzargen before the series production takes place. This element can be manually adjustable, as known, or a controllable motorized adjustment can be provided. Preference is given to the setting of the mentioned flexor wedge. The preferably driven adjustable elements of the flexer station, and possibly also rounding elements of the rounding machine are provided with drives (hereinafter called actuators), which can move these elements within their usual adjustment options to allow the control of the flexer station setting. the influence of the actuators on the elements of the flexer station and, if provided, also on the elements of the round machine is symbolized in the figures by an outgoing from the actuator arrow into the respective element, the movement of the element by another arrow. The connection of the actuators with the controller 5 is symbolized by lines 40. Thus, the flexi wedge 7 is moved by the actuator 6 in the direction of the arrow B. This also corresponds to the manual adjustability of the wedge, if no actuator is provided for the adjustment. If according to FIG. 2 an adjustment of the flex roller 9 is provided, it is done by an actuator 29 in the directions of the arrow C, or at most manually in a corresponding manner. If an adjustment of the wedge 20 of the flexer station is provided, it is effected by the actuator 21 in the direction of the arrow d, or correspondingly manually. In the round station, the preliminary circular wedge 14 can be moved by the actuator 15 in the direction of the arrow E. For the rollers 11 and 12, a distance between them determining drive can be provided, which acts on one or both of the rollers and which is shown as an actuator 16 schematically. Furthermore, the actuator 17 can act on the circular wedge 13 in order to move it in the direction of the arrow D. All of these actuators can be provided or only one of them and any combinations are possible.

Anhand der Figuren 2 bis 4 werden bevorzugte Ausführungsbeispiele genauer erläutert. In der Flexerstation 50 von Figur 2 ist dargestellt, wie das darin zur Vorbehandlung befindliche Blech 1 die Soll-Auftreffposition x auf der Messplatte 38 erreicht. Diese Soll-Auftreffposition ist nach Stand der Technik für ein gegebenes Blechmaterial und eine vorgesehene Rundungsgeschwindigkeit in der nachfolgenden Rundungsstation der Rundmaschine bekannt. Erreicht das Blech in der Flexerstation 50 beim Durchlauf mit der vorgesehenen Geschwindigkeit für die Rundung die Auftreffposition x auf der Messplatte 38, so ist die Einstellung der Flexerstation korrekt. Trifft das Blech 1 zu früh, z.B. bei der Auftreffposition y auf, wie dies mit unterbrochener Linie dargestellt ist, so muss ein Element der Flexerstation 50 verstellt werden, um die Auftreffposition möglichst an die Stelle x zu legen. Trifft das Blech zu spät bei der Auftreffposition y' auf, was ebenfalls mit unterbrochener Linie dargestellt ist, so erfolgt eine gegensinnige Verstellung eines Elementes der Flexerstation. Bevorzugt wird der Flexerkeil 7 verstellt, wobei in diesem Beispiel eine Verstellung in den Richtungen des Pfeils B möglich ist. Dies kann manuell erfolgen oder durch den Aktor 6. Dieser Aktor kann von Hand angesteuert werden oder bevorzugt durch die Steuerung 5 der Flexerstation, die auch die Steuerung der Rundmaschine sein kann. Anstelle oder zusätzlich zur Verstellung des Flexerkeils 7 kann eine Verstellung der Flexerwalze 9 oder 8 und/oder des Keils 20 treten, was dem Fachmann grundsätzlich bekannt ist und was hier nicht näher erläutert wird. Gemäss der Erfindung wird nun die Auftreffposition des Bleches auf der Messplatte durch eine Messeinrichtung mit einer Sensoranordnung festgestellt. Dies kann eine beliebige Sensoranordnung sein, welche die Position des Bleches feststellen kann, bei der es auf die Messplatte auftrifft. Die Sensoranordnung kann dabei z.B. mittels Ultraschallabstandssensoren die Position feststellen oder mittels optischer Sensoren, wie z.B. Lichtschranken, oder mittels Aufnahme eines Bildes und Bildverarbeitung.Based on FIGS. 2 to 4 preferred embodiments will be explained in more detail. In the flexer station 50 of FIG. 2 It is shown how the sheet 1 located therein for pretreatment reaches the target impact position x on the measuring plate 38. This desired impact position is known in the prior art for a given sheet material and an intended rounding speed in the subsequent rounding station of the rounding machine. If the sheet reaches the impact position x on the measuring plate 38 in the Flexerstation 50 at the intended speed for the rounding, the setting of the flexer station is correct. If the sheet metal 1 hits too early, for example at the impact position y, as shown by a broken line, an element of the flexer station 50 must be adjusted in order to place the impact position as close as possible to the point x. If the sheet arrives too late at the impact position y ', which is also shown with a broken line, an opposite adjustment of an element of the flexer station occurs. Preferably, the flexi wedge 7 is adjusted, in this example, an adjustment in the directions of the arrow B is possible. This can be done manually or by the actuator 6. This actuator can be controlled manually or preferably by the controller 5 of the flexer station, which may also be the control of the rounding machine. Instead of or in addition to the adjustment of the flexi wedge 7 can be an adjustment of the flex roller 9 or 8 and / or the wedge 20 occur, which is known in principle to those skilled and what is not explained here. According to the invention, the impact position of the sheet on the measuring plate is now determined by a measuring device with a sensor arrangement. This can be any sensor arrangement which can determine the position of the sheet at which it impinges on the measuring plate. The sensor arrangement can determine the position, for example by means of ultrasonic distance sensors or by means of optical Sensors, such as photoelectric sensors, or by taking a picture and image processing.

Bevorzugt erfolgt die Feststellung der Auftreffposition durch eine elektrische Kontaktgabe des Bleches auf der Messplatte 38. Ferner ist es bevorzugt, wenn dabei die Zeit ermittelt wird, bis das Blech - ausgehend von einer bestimmten Anfangsposition - auf der Messplatte auftrifft. Bei der bekannten Transportgeschwindigkeit ist die Zeit ein Mass für die Auftreffposition. Die Messeinrichtung weist mindestens einen Sensor 45 auf, mit dem das Ankommen des jeweiligen Bleches 1 bei oder in der Messeinrichtung detektiert werden kann. Insbesondere wird die in Transportrichtung A vordere Kante des Bleches detektiert, insbesondere durch einen optischen Sensor, insbesondere eine Lichtschranke oder mehrere Lichtschranken. Diese Erkennung des Bleches 1 startet bei der Messeinrichtung eine Zeitmessung zum Zeitpunkt t0. Diese kann durch ein separates Zeitmessmittel erfolgen oder durch die Steuerung 5, die bereits erwähnt worden ist, und die in diesem Fall auch die Messeinrichtung steuert bzw. Teil derselben ist und das Sensorsignal des Sensors 45 aufnimmt. Diese Variante ist in Figur 2 dargestellt. Die Zeitmessung wird zum Zeitpunkt t1 beendet, bei der die Vorderkante des Bleches auf der Messplatte 38 auftrifft, was über eine Leitung 38' an die Steuerung 5 gemeldet wird. Wie in Figur 2 in Seitenansicht ersichtlich, ist die Zeit t1 entsprechend der Einstellung der Flexerstation unterschiedlich und stellt somit ein Mass für deren Einstellung dar. So wäre die Zeit t1 kürzer, wenn die Zeitmessung beim Auftreffen an der Stelle y beendet würde bzw. länger, wenn sie durch das Auftreffen an der Stelle y' beendet würde. Die durch die Messeinrichtung ermittelte Zeit kann somit auf die Lage der Auftreffposition umgerechnet werden, da die Transportgeschwindigkeit des Bleches durch die Flexerstation bekannt ist. Die Messeinrichtung, bzw. in diesem Beispiel die Steuerung 5, kann somit die Auftreffposition auf einer Anzeige 25 darstellen, was noch näher erläutert wird und ggf. über mindestens einen Aktor der Flexerstation eine korrigierende Einstellung eines Elementes der Flexerstation bewirken, falls die gemessene Auftreffposition von der Soll-Auftreffposition abweicht.Preferably, the determination of the impact position by an electrical contact of the sheet on the measuring plate 38. Furthermore, it is preferred if the time is determined until the sheet - starting from a certain initial position - impinges on the measuring plate. At the known transport speed, the time is a measure of the impact position. The measuring device has at least one sensor 45, with which the arrival of the respective sheet 1 can be detected at or in the measuring device. In particular, the front edge of the sheet in the transport direction A is detected, in particular by an optical sensor, in particular a light barrier or a plurality of light barriers. This detection of the sheet 1 starts a time measurement at time t 0 in the measuring device. This can be done by a separate time measuring means or by the controller 5, which has already been mentioned, and which controls in this case, the measuring device or is part of the same and receives the sensor signal of the sensor 45. This variant is in FIG. 2 shown. The time measurement is terminated at time t 1 at which the leading edge of the sheet strikes the measuring plate 38, which is reported to the controller 5 via a line 38 '. As in FIG. 2 seen in side view, the time t 1 is different according to the setting of the flexer station and thus provides a measure of their adjustment. Thus, the time t 1 would be shorter if the time measurement would be terminated when hitting the point y or longer, if they would be terminated by the impact at the point y '. The determined by the measuring device time can thus be converted to the position of the impact position, since the transport speed of the sheet is known by the flexer station. The measuring device, or in this example the controller 5, can thus represent the impact position on a display 25, which will be explained in more detail and if necessary via at least one actuator of the flexer station cause a corrective adjustment of an element of the flexer station, if the measured impact position deviates from the desired impact position.

Die Erkennung des Auftreffens der Vorderkante des Bleches auf die Messplatte 38 der Messeinrichtung erfolgt vorzugsweise elektrisch. Dies kann so erfolgen, dass die Messplatte 38 auf einem ersten elektrischen Potential und mindestens eine der Walzen 8, 9 auf einem anderen elektrischen Potential liegt und allenfalls auch der Flexerkeil 7 auf dem elektrischen Potential der Walze liegt. Trifft die Vorderkante des elektrisch leitenden Bleches auf die Messplatte 38, so werden die beiden Potentiale kurzgeschlossen, was durch einen entsprechenden Stromfluss oder einen entsprechenden Spannungsabfall der Messspannung festgestellt werden kann. Damit wird die Zeitmessung gestoppt bzw. ist die Zeit zwischen Erkennung der Vorderkante durch den Sensor 45 und das Auftreffen der Vorderkante auf der Messplatte 38 bestimmt und damit die Auftreffposition des Bleches in der Flexerstation 50. Bei beschichteten Blechen kann der elektrische Kontakt zwischen den Walzen 8, 9 und ggf. dem Flexerkeil 7 und dem Blech ungenügend oder nicht gegeben sein. Deshalb wird bevorzugt die Messplatte 38 mit einer Mehrzahl von elektrisch voneinander isolierten, nebeneinander liegenden Messteilen 38a, 38b, 38c, 38d usw. ausgeführt, welche abwechslungsweise ebenfalls auf den unterschiedlichen elektrischen Potentialen liegen. Damit ist auch durch das Kurzschliessen von solchen Messteilen durch die Vorderkante des Bleches, die immer unbeschichtet ist, das Auftreffen auf der Messplatte 38 elektrisch detektierbar. Diese Teile können keilförmig ausgestaltet sein, wie in Figur 2 und 3 ersichtlich. Figur 3 zeigt einige der nebeneinander liegenden Messkeile in schaubildlicher Darstellung. Figur 4 zeigt eine entsprechende Messschaltung mit einer Messspannungsquelle Us, wobei die Walzen 8 bzw. 9 der Flexerkeil 7 auf Massepotential liegen. Ebenfalls auf Massepotential liegen die Messkeile 38b, 38d usw. (in Figur 4 ist zur Vereinfachung nur 38b dargestellt). Auf Pluspotential liegen dagegen die Messkeile 38a, 38c usw. (in Figur 4 ist nur 38a dargestellt). Die elektrischen Kurzschlussmöglichkeiten für die Messspannung durch das Auftreffen des Bleches auf der Messplatte 38, wobei die Messspannung detektierbar abfällt und somit die Zeitmessung stoppt, liegen somit beim Kurzschluss Messkeil - Messkeil oder Messkeil - Flexerkeil oder Messkeil - Walze. Die Spannungsabfalldetektion ist durch die Voltmetersymbole in Figur 4 dargestellt und kann auf beliebige, dem Fachmann bekannte Weise durch die Messeinrichtung bzw. in diesem Beispiel insbesondere durch die Steuerung 5 erfolgen. Der elektrische Widerstand R wird so gross gewählt, dass der Kurzschlussstrom innerhalb eine gewünschten Grenze bleibt.The detection of the impact of the leading edge of the sheet on the measuring plate 38 of the measuring device is preferably carried out electrically. This can be done so that the measuring plate 38 is at a first electrical potential and at least one of the rollers 8, 9 at a different electrical potential and possibly also the flex key 7 is at the electric potential of the roller. If the leading edge of the electrically conductive sheet meets the measuring plate 38, the two potentials are short-circuited, which can be determined by a corresponding current flow or a corresponding voltage drop of the measuring voltage. Thus, the time measurement is stopped or the time between detection of the leading edge by the sensor 45 and the impact of the leading edge is determined on the measuring plate 38 and thus the impact position of the sheet in the flexer 50. For coated sheets, the electrical contact between the rollers. 8 , 9 and possibly the flexi wedge 7 and the sheet are insufficient or not given. For this reason, the measuring plate 38 is preferably designed with a plurality of measuring elements 38a, 38b, 38c, 38d, etc., which are electrically insulated from one another and which also alternately lie at the different electrical potentials. Thus, by the short-circuiting of such measuring parts through the front edge of the sheet, which is always uncoated, the impact on the measuring plate 38 is electrically detectable. These parts may be wedge-shaped, as in FIGS. 2 and 3 seen. FIG. 3 shows some of the adjacent measuring wedges in a diagrammatic representation. FIG. 4 shows a corresponding measuring circuit with a measuring voltage source U s , the rollers 8 and 9 of the flexer 7 are at ground potential. Also at ground potential are the measuring wedges 38b, 38d, etc. (in FIG. 4 for simplicity, only 38b is shown). On the other hand, the measuring wedges 38a, 38c, etc. (in FIG. 4 only 38a is shown). The electrical short circuit possibilities for the measuring voltage due to the impact of the sheet on the measuring plate 38, whereby the measuring voltage drops detectably and thus stops the time measurement, thus lie in the case of a short - circuit measuring wedge or measuring wedge flexo wedge or measuring wedge roll. The voltage drop detection is indicated by the voltmeter symbols in FIG. 4 represented and can be done in any manner known in the art by the measuring device or in this example, in particular by the controller 5. The electrical resistance R is chosen so large that the short-circuit current remains within a desired limit.

Gemäss einer ersten Ausführungsform der Erfindung wird auf der optischen Anzeige 25, welche ein Bildschirm oder eine andere Anzeigevorrichtung sein kann, die Auftreffposition dargestellt. Dies kann z.B. so erfolgen, dass eine Linie dargestellt wird, die der, allenfalls verkürzten, Längserstreckung der Messplatte entspricht auf der ein Punkt dargestellt wird, der der Auftreffposition entspricht. Die Bedienungsperson erhält somit an sich dieselbe Information, welche nach Stand der Technik durch Freilegung der Messplatte und deren visuelle Betrachtung beim Auftreffen des Bleches erhältlich ist. Die Bedienungsperson kann dann beurteilen, ob der Auftreffpunkt am gewünschten Ort liegt oder nicht und gegebenenfalls kann sie manuell ein Element der Flexerstation einstellen, insbesondere den Flexerkeil 7. Die Beurteilung wird erleichtert, wenn auf der Anzeige auch die Soll-Auftreffposition x oder ein dafür zulässiger Bereich dargestellt wird, so dass die Bedienungsperson die Ist-Auftreffposition, z.B. y oder y', damit einfach in Beziehung setzen kann. In einer weiteren Variante wird aus dem Messsignal, das die Auftreffposition darstellt, ein abgeleiteter Wert angezeigt, z.B. ein Wert um welchen ein Element der Flexerstation manuell verstellt werden muss, um von der erzielten Ist-Auftreffposition zu der Soll-Auftreffposition zu gelangen. So kann z.B. ein Wert von +5 angezeigt werden, wenn der Flexerkeil 7 an Hand einer dort befindlichen Skala um plus 5 Einheiten verstellt werden muss. Die Messeinrichtung, insbesondere die Steuerung 5, kann diesen abgeleiteten Anzeigewert +5 aus der Abweichung der gemessenen Ist-Auftreffposition zur Soll-Auftreffposition berechnen. Anstelle einer rein manuellen Verstellung kann die Bedienungsperson das Flexerelement mittels eines motorischen Antriebes bzw. mittels eines Aktors verstellen, wobei indes die Steuerung des Aktors durch die Bedienungsperson erfolgt. Dabei kann über eine Rückmeldung vom Aktor an die Steuerung 5 eine Anzeige der Einstellung auf der Anzeige 25 erfolgen, so dass die Bedienungsperson kontrollieren kann, ob sie die Verstellung richtig als Reduzierung der Abweichung der Ist-Auftreffposition von der Soll-Auftreffposition durchführt. Es kann von der Auftreffposition auch auf die erzielte Vorrundung geschlossen und diese als abgeleiteter Wert angezeigt werden.According to a first embodiment of the invention, the impact position is displayed on the optical display 25, which may be a screen or other display device. This can for example be done so that a line is displayed, which corresponds to the, at most shortened, longitudinal extent of the measuring plate on which a point is displayed, which corresponds to the impact position. The operator thus receives the same information per se, which is available in the prior art by exposing the measuring plate and their visual inspection when hitting the sheet. The operator can then judge whether the point of impact is at the desired location or not and, if necessary, manually adjust an element of the flexer station, in particular the flex key 7. The judgment is facilitated if the display also shows the target impact position x or an allowable one Range is displayed so that the operator the actual impact position, such as y or y ', can easily relate. In another variant is from the Measurement signal that represents the impact position, a derived value displayed, for example, a value by which an element of the flexer station must be manually adjusted to move from the achieved actual impact position to the target impact position. For example, a value of +5 can be displayed if the flex key 7 has to be adjusted by 5 units on the basis of a scale located there. The measuring device, in particular the controller 5, can calculate this derived display value +5 from the deviation of the measured actual impact position from the target impact position. Instead of a purely manual adjustment, the operator can adjust the flexer element by means of a motor drive or by means of an actuator, wherein, however, the control of the actuator is performed by the operator. In this case, a feedback of the actuator to the controller 5, an indication of the setting on the display 25, so that the operator can control whether it performs the adjustment properly as reducing the deviation of the actual impact position of the target impact position. It can also be closed from the impact position on the obtained rounding and these are displayed as a derived value.

Bei einer weiteren Ausführungsform, welche mit der geschilderten Anzeige kombiniert sein kann oder separat davon vorgesehen werden kann, wird die Einstellung des Flexerelementes nicht manuell vorgenommen, sondern direkt über den Aktor durch die Steuerung 5 in Abhängigkeit von der Differenz zwischen der gemessenen Ist-Auftreffposition zur Soll-Auftreffposition. So kann insbesondere der Flexerkeil 7 durch die Steuerung 5 mittels der Aktors 6 nach oben geschwenkt werden, um die Ist-Auftreffposition für das nächste Blech von der Position y zur Position x zu verschieben. Durch ein weiteres Testblech kann die korrekte Einstellung des Flexerkeils dann verifiziert werden.In a further embodiment, which may be combined with the described display or may be provided separately thereof, the adjustment of the flexer element is not made manually, but directly via the actuator by the controller 5 in dependence on the difference between the measured actual impact position for target impact position. Thus, in particular, the flexi wedge 7 can be pivoted by the controller 5 by means of the actuator 6 upwards to move the actual impact position for the next sheet from the position y to the position x. By another test sheet, the correct adjustment of the flexure wedge can then be verified.

Die Steuerung kann ferner über die Aktoren für die Elemente der Rundstation der Rundmaschine auch auf die Rundung selber Einfluss nehmen.The controller can also influence the rounding itself via the actuators for the elements of the round station of the round machine.

Das Verfahren und die Vorrichtung kommen insbesondere beim Schweissen von Dosenzargen zur Anwendung.The method and the device are used in particular for the welding of can bodies.

Während in der vorliegenden Anmeldung bevorzugte Ausführungen der Erfindung beschrieben sind, ist darauf hinzuweisen, dass die Erfindung nicht auf diese beschränkt ist und auch in anderer Weise innerhalb des Umfangs der folgenden Ansprüche ausgeführt werden kann.While preferred embodiments of the invention are described in the present application, it should be understood that the invention is not limited to these and may be practiced otherwise within the scope of the following claims.

Claims (18)

  1. Method for adjusting a flexer station (50) for the pre-treatment of metal sheets (1, 2) to be rounded before their rounding in a rounding apparatus (4), wherein in the flexer station a target impact position (x) of at least a test metal sheet on a measurement plate (38) serves as measure for the adjustment of at least one adjustable element (20, 9, 7) of the flexer station, characterized in that the impact position (y, y') of the test metal sheet on the measurement plate is determined by means of a measurement installation with sensor (45, 38) during the motor-driven passage of the metal sheet through the flexer station, by means of which a signal showing the position is provided, by means of which the impact position or a value derived therefrom is shown on a display device (25) and/or by means of which at least one of the elements of the flexer station determining the pre-treatment of a metal sheet through the latter is adjusted by means of a controller (5) and an actuator in such a way that a deviation from the target impact position is diminished for a subsequent metal sheet.
  2. Method according to claim 1, characterized in that the flexer station (50) comprises in the direction of the passage of the metal sheet a first element acting upon the metal sheet, particularly a wedge (20), an upper and a lower flexer roller (9, 8), and a subsequent further element acting upon the metal sheet, particularly a flexer wedge (7).
  3. Method according to claim 2, characterized in that the further element (7) and/or the first element (20) is adjusted depending on the signal showing the impact position.
  4. Method according to one of the claims 2 or 3, characterized in that at least one of the flexer rollers (9) is adjusted in its position relative to the other flexer roller (8) depending on the signal showing the impact position.
  5. Method according to one of the claims 1 to 4, characterized in that the sensor arrangement measures the impact position electrically and/or mechanically and/or optically and/or acoustically.
  6. Method according to claim 5, characterized in that the impact position is measured electrically, by detecting the metal sheet in a predefined location during its passage, and thereby particularly by detecting its front edge before the flexer rollers, and that a time measurement takes place from this detection on, by means of which the time until the metal sheet has electrical contact with the measurement plate (38) is determined.
  7. Method according to one of claims 1 to 6, characterized in that the impact position (y, y') and the target impact position (x) are shown on the display device.
  8. Method for the series production of container bodies, particularly can bodies, from individual metal sheet sections (1, 2), wherein the individual metal sheet sections are fed from a stack (10) via a feeding path or directly into a rounding machine (4) with a flexer station (50) and rounded therein, wherein the rounding takes place with a speed of 100 to 450 m/minute and the rounded container body blanks are fed from the rounding machine into a welding device for can bodies with a Z-rail for the positioning of the body edges and welding rollers, particularly with intermediary wire electrodes running on it, wherein before the series production the adjustment of at least an adjustable element (20, 9, 7) of the flexer station takes place in the flexer station by means of at least a test metal sheet, by determining the deviation of the impact position of the test metal sheet section on a measurement plate (38) by a target impact position (x), characterized in that the impact position (y, y') of the metal sheet on the measurement plate is determined by means of a sensor arrangement (45, 38) during the motor-driven actuated passage of the metal sheet through the flexer station, by means of which a signal showing the position is provided, by means of which the impact position or a value derived therefrom is shown on a display device (25) and/or by means of which an element of the flexer station which determines the pre-treatment of the metal sheet through the latter is adjusted by its controller and an actuator in such a way, that a deviation from the target impact position is diminished for a subsequent metal sheet.
  9. Method according to claim 8, characterized in that the flexer station (50) comprises in the direction of the passage of the metal sheet a first element acting upon the metal sheet section, particularly a wedge (20), an upper and a lower flexer roller (9, 8), and a subsequent further element acting upon the metal sheet, particularly a flexer wedge (7).
  10. Method according to claim 8 or 9, characterized in that the impact position is measured electrically, by detecting the metal sheet section in a predefined location during its passage, and thereby by detecting particularly its front edge before the flexer rollers, and that a time measurement takes place from this detection on, by means of which the time until the metal sheet has electrical contact with the measurement plate (38) is determined.
  11. Flexer station (50) for the pre-treatment of metal sheets (1, 2) to be rounded in a rounding apparatus (4), wherein in the flexer station a target impact position (x) of a metal sheet on a measurement plate (38) is ascertainable as a measure for the adjustment of at least an adjustable element (20, 9, 7) of the flexer station, characterized in that the impact position (y, y') of the metal sheet on the measurement plate is determined by means of a sensor arrangement (45, 38) during the motor-driven passage of the metal sheet through the flexer station, by means of which a signal showing the impact position is provided, by means of which the impact position or a value derived therefrom is representable on a display device (25) and/or by means of which an element of the flexer station determining the pre-treatment of a metal sheet through the latter is adjustable by means of its controller and an actuator in such a way, that a deviation from the target impact position is diminished for a subsequent metal sheet.
  12. Flexer station according to claim 11, characterized in that it has, in the direction of the passage of the metal sheet, a first element acting upon the metal sheet, particularly a wedge (20), an upper and a lower flexer roller (9, 8), and a subsequent further element acting upon the metal sheet, particularly a flexer wedge (7).
  13. Flexer station according to claim 12, characterized in that the further element (7) and/or the first element (20) is adjustable depending on signal showing the impact position.
  14. Flexer station according to one of the claims 11 to 13, characterized in that the impact position is electrically and/or mechanically and/or optically and/or acoustically measurable.
  15. Flexer station according to claim 14, characterized in that the impact position is measured electrically, wherein during the passage of the metal sheet a time measurement is feasible from a predefined location on, and thereby the time until the metal sheet has electrical contact with a measurement plate (38) is determinable.
  16. Flexer station according to claim 15, characterized in that the measurement plate (38) is divided in multiple measurement parts (38a, 38b, 38c, 38d) which lie side by side and are electrically isolated from each other.
  17. Rounding machine with a flexer station according to one of the claims 11 to 16.
  18. Welding device for can bodies, with a Z-rail for the positioning of the body edges and with welding rollers, particularly with intermediary wire electrodes running on it, comprising a rounding machine according to claim 17.
EP08733800A 2007-05-30 2008-04-17 Method and device for adjusting a flexing station during the bending of sheet metal Active EP2152445B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH8622007 2007-05-30
PCT/CH2008/000174 WO2008144947A1 (en) 2007-05-30 2008-04-17 Method and device for adjusting a flexing station during the bending of sheet metal

Publications (2)

Publication Number Publication Date
EP2152445A1 EP2152445A1 (en) 2010-02-17
EP2152445B1 true EP2152445B1 (en) 2010-08-18

Family

ID=39743800

Family Applications (2)

Application Number Title Priority Date Filing Date
EP08733799A Active EP2148751B1 (en) 2007-05-30 2008-04-17 Method and device for bending sheet metal sections
EP08733800A Active EP2152445B1 (en) 2007-05-30 2008-04-17 Method and device for adjusting a flexing station during the bending of sheet metal

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP08733799A Active EP2148751B1 (en) 2007-05-30 2008-04-17 Method and device for bending sheet metal sections

Country Status (8)

Country Link
US (2) US8627694B2 (en)
EP (2) EP2148751B1 (en)
CN (2) CN101678423B (en)
AT (1) ATE477863T1 (en)
DE (1) DE502008001173D1 (en)
ES (2) ES2348067T3 (en)
PT (1) PT2148751E (en)
WO (2) WO2008144947A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PT2110191E (en) 2008-04-18 2011-05-26 Soudronic Ag Rounding device with an articulated preliminary rounding element at the rounding station and method for rounding sheet metal
CH700092A2 (en) * 2008-12-09 2010-06-15 Soudronic Ag Vorrund element to a rounding apparatus.
CN104624737B (en) * 2014-12-24 2017-02-08 广东中南声像灯光设计研究院 Bending machine controlling torque adjustment and roll bending through PLC and method
CN107889519A (en) * 2015-01-09 2018-04-06 伊利诺斯工具制品有限公司 For being heat-treated the resistive heating system in column and method of continuous conduction product
WO2018177876A1 (en) 2017-03-29 2018-10-04 Can Man Ag Method for rounding sheet metal blanks for containers and a longitudinal seam welding machine for producing can bodies, comprising a round station
US11219933B2 (en) * 2017-11-10 2022-01-11 Promau S.R.L. Apparatus and method for support and controlled advancement of a metal sheet in a bending machine for obtaining cylindrical or truncated cone structures

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2221776C3 (en) 1972-05-04 1980-01-24 Hoesch Ag, 4600 Dortmund Control device for adjusting the belt bending device of a screw-type tube mechanism
IT8249012A0 (en) 1982-08-20 1982-08-20 Fmi Mecfond Aziende Mecc ELECTRIC RESISTANCE WELDING MACHINE FOR BOX BODIES WITH IMPROVED MEANS FOR CALENDERING THE METAL CLAMP AND TRANSPORT OF THE CALENDERED BODIES TO THE WELDING STATION
CH671945A5 (en) * 1987-05-07 1989-10-13 Elpatronic Ag
US5209625A (en) 1989-08-22 1993-05-11 Elpatronic Ag Apparatus for rounding and conveying onwards sheet-metal blanks for can bodies
CN1029092C (en) * 1990-03-05 1995-06-28 卡尔·厄思斯特·洛巴哈 Contouring of metal sheets
ATE120389T1 (en) * 1990-09-28 1995-04-15 Promau Srl PROGRAMMABLE SHEET METAL BENDING MACHINE.
FR2687336B1 (en) 1992-02-14 1996-05-15 Jammes Ind Sa AUTOMATED PRODUCTION LINE FOR WELDED ROLLED RODS.
CN2265864Y (en) * 1996-06-03 1997-10-29 吴忠市台钻厂 Metal workpiece rounding and angle-bending device
CN1138605C (en) * 1998-04-16 2004-02-18 湖北重型机器集团有限公司 Measuring method for rolling bend part curvature and roller type bending machine
DE102004041732A1 (en) * 2004-08-28 2006-03-02 Sms Demag Ag Method of straightening a metal strip and straightening machine

Also Published As

Publication number Publication date
ATE477863T1 (en) 2010-09-15
CN101678424B (en) 2014-04-02
PT2148751E (en) 2012-11-29
US20100154500A1 (en) 2010-06-24
ES2348067T3 (en) 2010-11-29
WO2008144946A1 (en) 2008-12-04
CN101678423A (en) 2010-03-24
CN101678423B (en) 2012-05-23
EP2148751B1 (en) 2012-09-05
ES2391795T3 (en) 2012-11-29
US8573013B2 (en) 2013-11-05
EP2152445A1 (en) 2010-02-17
DE502008001173D1 (en) 2010-09-30
WO2008144947A1 (en) 2008-12-04
US8627694B2 (en) 2014-01-14
US20100154499A1 (en) 2010-06-24
CN101678424A (en) 2010-03-24
EP2148751A1 (en) 2010-02-03

Similar Documents

Publication Publication Date Title
EP2152445B1 (en) Method and device for adjusting a flexing station during the bending of sheet metal
EP1505025B1 (en) Method and device for controlling the web tension forces and the cutting register of a rotary printer
DE10335887A1 (en) Method and device for controlling the web tension and the cut register of a web-fed rotary printing machine
DE19747997A1 (en) Pocket folder and method for register control of a pocket folder
EP2110191B1 (en) Rounding device with an articulated preliminary rounding element at the rounding station and method for rounding sheet metal
DE3711771A1 (en) Method and arrangement for process control in spot welding
EP1013589B1 (en) Buckling folder and method for registration control of a buckling folder
DE102010013913B4 (en) Joining method and joining device
EP0453909B1 (en) Method for adjusting and controlling a folding machine
EP0047413B1 (en) Process and device to control the arrival of single pushed on sheets of flexible material
EP2110197B1 (en) Method and welding device for determining the welding electric current to be applied during welding of can bodies
CH668135A5 (en) METHOD AND DEVICE FOR SORTING COINS.
DE102004056038A1 (en) Method and device for cutting sausages
EP2916988B1 (en) Method and device for roller seam welding of can bodies
EP0728555A1 (en) Can welding method
DE2904877C2 (en) Automatically controlling device for measuring torques on mechanical connecting elements
EP3911471B1 (en) Method for scanning the surface of metallic workpieces
DE3436923C2 (en)
EP3554753B1 (en) Method of and device for roll welding of container bodies
EP3599074B1 (en) Device for producing standing bags
WO2020156604A1 (en) Method for adjusting an inlet guide of a peeling machine and peeling machine
DE102014209095A1 (en) Apparatus and method for adjusting the position of a packaging material web to a reference in a packaging machine and packaging machine
DE19511189C2 (en) Method and device for aligning strip material as it is fed into a strip material processing machine
CH713905B1 (en) Method for detecting quality defects on a longitudinal weld seam in the production of containers from sheet metal and device for carrying out the method.
DE102007054937A1 (en) Device for folding flat products

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20091112

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

DAX Request for extension of the european patent (deleted)
AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: CH

Ref legal event code: NV

Representative=s name: E. BLUM & CO. AG PATENT- UND MARKENANWAELTE VSP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REF Corresponds to:

Ref document number: 502008001173

Country of ref document: DE

Date of ref document: 20100930

Kind code of ref document: P

REG Reference to a national code

Ref country code: PT

Ref legal event code: SC4A

Free format text: AVAILABILITY OF NATIONAL TRANSLATION

Effective date: 20101027

REG Reference to a national code

Ref country code: NL

Ref legal event code: T3

LTIE Lt: invalidation of european patent or patent extension

Effective date: 20100818

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100818

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100818

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101118

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101118

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100818

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101218

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100818

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100818

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100818

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100818

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100818

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101119

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100818

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100818

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100818

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100818

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100818

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100818

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20110519

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502008001173

Country of ref document: DE

Effective date: 20110519

BERE Be: lapsed

Owner name: SOUDRONIC A.G.

Effective date: 20110430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100818

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110417

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100818

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100818

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 477863

Country of ref document: AT

Kind code of ref document: T

Effective date: 20130417

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130417

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 9

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 10

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 11

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230418

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20230419

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PT

Payment date: 20230406

Year of fee payment: 16

Ref country code: IT

Payment date: 20230426

Year of fee payment: 16

Ref country code: FR

Payment date: 20230424

Year of fee payment: 16

Ref country code: ES

Payment date: 20230627

Year of fee payment: 16

Ref country code: DE

Payment date: 20220620

Year of fee payment: 16

Ref country code: CH

Payment date: 20230502

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20230419

Year of fee payment: 16