EP0344741A2 - Advancing device for feeding sheet metal to a stamping tool - Google Patents

Advancing device for feeding sheet metal to a stamping tool Download PDF

Info

Publication number
EP0344741A2
EP0344741A2 EP89109812A EP89109812A EP0344741A2 EP 0344741 A2 EP0344741 A2 EP 0344741A2 EP 89109812 A EP89109812 A EP 89109812A EP 89109812 A EP89109812 A EP 89109812A EP 0344741 A2 EP0344741 A2 EP 0344741A2
Authority
EP
European Patent Office
Prior art keywords
feed
sheet metal
advancing
sheet
bars
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP89109812A
Other languages
German (de)
French (fr)
Other versions
EP0344741A3 (en
EP0344741B1 (en
Inventor
Gerhard Lauckner
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.)
Elpatronic AG
Original Assignee
Karges-Hammer-Maschinen & Co KG GmbH
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 Karges-Hammer-Maschinen & Co KG GmbH filed Critical Karges-Hammer-Maschinen & Co KG GmbH
Publication of EP0344741A2 publication Critical patent/EP0344741A2/en
Publication of EP0344741A3 publication Critical patent/EP0344741A3/en
Application granted granted Critical
Publication of EP0344741B1 publication Critical patent/EP0344741B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
    • B21D43/10—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by grippers
    • B21D43/11—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by grippers for feeding sheet or strip material
    • 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
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/003—Positioning devices
    • 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
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
    • B21D43/10—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by grippers

Definitions

  • the invention relates to a feed device for feeding sheet metal sheets to at least one stationary punching tool, with which blanks are punched out of the sheet metal sheets, with a feed beam that can be moved in the feed direction on a conveyor table and has collet chucks that grip the sheet metal sheets and that can be moved on the feed beam transversely to the feed direction .
  • the supply of metal sheets to a punching device with such a feed bar is known.
  • the feed bar regularly contains a spindle driven by a separate motor, with which the collets can be moved step by step, so that they move the metal sheet into the desired punching position under the punching tool.
  • the bar itself is mounted on a spindle parallel to the conveying direction, which also drives it step by step, thus determining the punching position in the conveying direction.
  • the punching out of boards can be connected to a pressing process, for example in order to produce a can lid that is already shaped.
  • the punching out of blanks is also required for box bodies if they are in deep drawing processes are to be produced.
  • Punching out blanks from a sheet has the advantage of a high level of utilization of the sheet with little waste due to the remaining grid of the sheet.
  • the metal sheet With the feed bar, the metal sheet is positioned step by step in the conveying direction and transversely to it, so that the desired blanks are punched out. If such a sheet is processed, the feed bar moves back and takes a new sheet. During this return movement, the continuously driven punch performs an idle stroke. This idle stroke naturally reduces the effectiveness of the punch.
  • the invention is therefore based on the object of designing a feed device of the type mentioned at the outset that punching is possible without an idle stroke.
  • each feed bar is alternately responsible for every second sheet of metal.
  • the first feed bar When the first feed bar has completed the movements for punching out the complete sheet, it swivels up so that it does not hinder the feed of the other feed bar when moving against the conveying direction.
  • the next sheet of metal can therefore be conveyed directly into the punching tool by the second feed beam during the next stroke.
  • the advance of the metal sheets with two advance bars ensures optimal use of the punch, since there is no need to run with an idle stroke.
  • the swiveling-up movement of the feed beam during the backward movement is preferably controlled by a hydraulic cylinder acting on the beam.
  • FIGS. 1 and 2 The processing sequence from right to left is shown in FIGS. 1 and 2.
  • a lifting table 1 On the right side there is a lifting table 1, which carries a stack of metal sheets 2.
  • the uppermost sheet metal plate 2 is gripped by four suction cups 3 and advanced through roller nips 4, 5 onto a conveyor table 6.
  • two feed bars 7, 8 move both parallel to the longitudinal axis 9 and stepwise transversely thereto.
  • the feed bars 7, 8 each grip a metal sheet 2 on the rear edge seen in the conveying direction with collets 21 and thus ensure a gradual feed of the metal sheets 2 both in the axial direction and stepwise transversely thereto in order to punch out the blanks 10 by means of a punching tool 11.
  • Figure 2 shows that in the illustrated embodiment oval boards 10 are punched and that twelve boards are punched from a metal sheet 2, four boards being punched out side by side across the width of the metal sheet 2.
  • two punching tools 11 are used, which have a free spacing of a board width.
  • scrap shears 12 are arranged which, after the sheet metal sheet 2 has been advanced, sever the row of bars which have been punched out. Abge on a conveyor belt 13 cut grid strips laterally transported to save space.
  • the cut blanks 10 are then transported step by step into a transfer press 14 which has three different drawing tools 15, 16, 17 arranged one behind the other for carrying out a three-stage drawing process.
  • the flanged edges of the deep-drawn cans thus produced are trimmed in a work station 18.
  • the deep-drawn, preferably conical cans can then be removed and stacked.
  • feed bars 7, 8 have the advantage that the punching can be done without an idle stroke.
  • the feed of the feed bars 7, 8 takes place with motors 26, each of which drives a spindle 26 '.
  • the two feed bars 7, 8 are supported on different sides and overlap the conveyor table 6 in a free-floating manner. They are both mounted so that they can be tilted to enable the other feed bars 7, 8 to be fed into the punching tool 11 when the sheet metal plate 2 is gripped.
  • Both the punch 11 and the drawing tools 15, 16, 17 are driven via a common eccentric shaft 19 which is mounted in the machine frame 20 of the device.
  • Figure 3 shows the two feed bars 7, 8, each of which is mounted with a guide block 19 'in a guide 20' of the conveyor table 6.
  • Each feed bar 7, 8 has on its with the guide block 19 'provided end of a motor 22 which rotates a spindle inside the guide beam on which spindle nuts of the collets 21 are mounted, so that the lateral position of the collets 21 is adjustable by the rotation of the motor 22.
  • the guide block 19 ' also overlaps with corresponding spindle nuts 23, the spindles 13', which cause the displacement of the respective feed beam 7, 8 or in the opposite direction to the conveying direction.
  • the tilting of the feed beam 7, 8 is effected by a hydraulic cylinder 24 which is articulated to the underside of the guide block 19 '.
  • the dashed-up position of the feed bar 8 shown in dashed lines during its return movement permits the trouble-free advancement of a metal sheet 2 through the feed bar 7 into the punching tool 11, without this having to carry out an idle stroke.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Punching Or Piercing (AREA)
  • Press Drives And Press Lines (AREA)

Abstract

In an advancing device for feeding sheet metal (2) to at least one stationary stamping tool (11) with which blanks (10) are stamped out from the sheet metal (2), having an advancing beam (7, 8) mounted on one side and movable in the advancing direction on a conveying table (6), and having collet chucks (21) which grip the sheet metal (2) and can move laterally on the advancing beam (7, 8), transversely to the direction of advance, the stamping process can be carried out during transfer from one piece of sheet metal (2) to another without a return stroke when a second advancing beam (7, 8) is provided, when both advancing beams are mounted on one side in each case on a different longitudinal side of the advancing table (6), and when both advancing beams can each be pivoted up about a rotational joint (25) having its spindle pointing in the conveying direction. <IMAGE>

Description

Die Erfindung betrifft eine Vorschubeinrichtung zum Zuführen von Blechtafeln zu wenigstens einem stationären Stanzwerkzeug, mit dem aus den Blechtafeln Platinen ausgestanzt werden, mit einem in Vorschubrichtung auf einem Fördertisch verfahrbaren, einseitig gelagerten Vorschubbalken mit die Blechtafeln ergreifenden Spann­zangen, die am Vorschubbalken quer zur Vorschubrichtung verfahr­bar sind.The invention relates to a feed device for feeding sheet metal sheets to at least one stationary punching tool, with which blanks are punched out of the sheet metal sheets, with a feed beam that can be moved in the feed direction on a conveyor table and has collet chucks that grip the sheet metal sheets and that can be moved on the feed beam transversely to the feed direction .

Die Zuführung von Blechtafeln zu einer Stanzeinrichtung mit einem derartigen Vorschubbalken ist bekannt. Dabei enthält der Vor­schubbalken regelmäßig eine durch einen separaten Motor ange­triebene Spindel, mit der die Spannzangen schrittweise verfahr­bar sind, so daß sie die Blechtafel in die gewünschte Stanzpo­sition unter dem Stanzwerkzeug verbringen. Der Balken selbst ist an einer parallel zur Förderrichtung liegenden Spindel gelagert, die ihn ebenfalls schrittweise antreibt und so die Stanzposition in Förderrichtung bestimmt. Das Ausstanzen von Platinen kann mit einem Preßvorgang verbunden sein, beispielsweise um gleich fertig geformten Dosendeckel herzustellen. Die Ausstanzung von Platinen wird aber auch für Dosenkörper benötigt, wenn diese im Tiefzieh­ verfahren hergestellt werden sollen.The supply of metal sheets to a punching device with such a feed bar is known. The feed bar regularly contains a spindle driven by a separate motor, with which the collets can be moved step by step, so that they move the metal sheet into the desired punching position under the punching tool. The bar itself is mounted on a spindle parallel to the conveying direction, which also drives it step by step, thus determining the punching position in the conveying direction. The punching out of boards can be connected to a pressing process, for example in order to produce a can lid that is already shaped. The punching out of blanks is also required for box bodies if they are in deep drawing processes are to be produced.

Das Ausstanzen von Platinen aus einer Blechtafel hat den Vorteil eines hohen Ausnutzungsgrades des Bleches mit einem geringen Abfall durch das verbleibende Gitter der Blechtafel. Mit den Vor­schubbalken wird die Blechtafel unter dem Stanzwerkzeug schritt­weise in Förderrichtung und quer dazu positioniert, so daß die gewünschten Platinen ausgestanzt werden. Ist eine derartige Blechtafel abgearbeitet, verfährt der Vorschubbalken zurück und ergreift eine neue Blechtafel. Während dieser Rückfahrbewegung übt die kontinuierlich angetriebene Stanze einen Leerhub aus. Dieser Leerhub reduziert naturgemäß die Effektivität der Stanze.Punching out blanks from a sheet has the advantage of a high level of utilization of the sheet with little waste due to the remaining grid of the sheet. With the feed bar, the metal sheet is positioned step by step in the conveying direction and transversely to it, so that the desired blanks are punched out. If such a sheet is processed, the feed bar moves back and takes a new sheet. During this return movement, the continuously driven punch performs an idle stroke. This idle stroke naturally reduces the effectiveness of the punch.

Der Erfindung liegt daher die Aufgabe zugrunde, eine Vorschub­einrichtung der eingangs erwähnten Art zu auszubilden, daß das Stanzen ohne Leerhub möglich ist.The invention is therefore based on the object of designing a feed device of the type mentioned at the outset that punching is possible without an idle stroke.

Diese Aufgabe wird bei einer Vorschubeinrichtung der eingangs erwähnten Art dadurch gelöst, daß ein zweiter Vorschubbalken vorgesehen ist, daß beide Vorschubbalken auf jeweils einer anderen Längsseite des Vorschubtisches einseitig gelagert sind und daß beide Vorschubbalken jeweils um ein mit seiner Achse in Förder­richtung zeigendes Drehgelenk hochschwenkbar sind.This object is achieved in a feed device of the type mentioned in the introduction in that a second feed bar is provided, that both feed bars are supported on one side on another longitudinal side of the feed table and that both feed bars can each be swiveled up about a swivel joint with its axis pointing in the conveying direction.

Erfindungsgemäß ist jeder Vorschubbalken abwechselnd für jede zweite Blechtafel zuständig. Hat der erste Vorschubbalken die Bewegungen für die Ausstanzung der kompletten Blechtafel vollendet, schwenkt er hoch, so daß er bei einer Bewegung entgegen der Förderrichtung den Vorschub des anderen Vorschubbalkens nicht behindert. Die nachfolgende Blechtafel kann daher unmittelbar beim nächsten Hub durch den zweiten Vorschubbalken vorgefördert in das Stanzwerkzeug gelangen. Der Vorschub der Blechtafeln mit zwei Vorschubbalken sichert eine optimale Ausnutzung der Stanze, da nicht mit einem Leerhub gefahren werden muß.According to the invention, each feed bar is alternately responsible for every second sheet of metal. When the first feed bar has completed the movements for punching out the complete sheet, it swivels up so that it does not hinder the feed of the other feed bar when moving against the conveying direction. The next sheet of metal can therefore be conveyed directly into the punching tool by the second feed beam during the next stroke. The advance of the metal sheets with two advance bars ensures optimal use of the punch, since there is no need to run with an idle stroke.

Zur Ermöglichung der Rückwärtsbewegung des Vorschubbalkens in eine Ausgangsstellung, in der der Vorschubbalken eine neue Blech­tafel ergreift, wird durch das Hochschwenken des jeweils rück­wärtsbewegten Vorschubbalkens ermöglicht. Dadurch ist es möglich, den Vorschubbalken über die gesamte Breite der Blechtafel zu erstrecken und so eine stabile und präzise Positionierung der jeweiligen Blechtafel unter dem Stanzwerkzeug zu gewährleisten. Eine kürze Ausbildung des Vorschubbalkens, bei der die beiden Vorschubbalken ohne eine Schwenkbewegung aneinander vorbeifahren könnten, würde diese Sicherheit nicht gewährleisten.To enable the feed bar to move backwards into a starting position, in which the feed bar grips a new sheet of metal, the pivoting of the feed bar, which is moved backwards, enables this. This makes it possible to extend the feed bar over the entire width of the sheet metal plate and thus to ensure a stable and precise positioning of the respective metal sheet plate under the punching tool. A short design of the feed bar, in which the two feed bars could move past each other without a swiveling movement, would not guarantee this security.

Die Hochschwenkbewegung des Vorschubbalkens während der Rück­wärtsbewegung wird vorzugsweise durch einen am Balken angrei­fenden Hydraulikzylinder gesteuert.The swiveling-up movement of the feed beam during the backward movement is preferably controlled by a hydraulic cylinder acting on the beam.

Die Erfindung soll im folgenden anhand eines in der Zeichnung dargestellten Ausführungsbeispiels näher erläutert werden. Es zeigen:

  • Figur 1 - eine schematische Seitenansicht einer Stanz- und Ziehvorrichtung
  • Figur 2 - eine Draufsicht auf die Verarbeitungsebene der Vorrichtung gemäß Figur 1.
  • Figur 3 - eine Frontansicht auf die beiden Vorschubbalken, von denen einer auch in seiner angehobenen Stellung gestrichelt eingezeichnet ist.
The invention will be explained below with reference to an embodiment shown in the drawing. Show it:
  • Figure 1 - a schematic side view of a punching and drawing device
  • FIG. 2 shows a plan view of the processing level of the device according to FIG. 1.
  • Figure 3 - a front view of the two feed bars, one of which is also shown in dashed lines in its raised position.

In den Figuren 1 und 2 ist der Bearbeitungsablauf von rechts nach links dargestellt. Auf der rechten Seite befindet sich ein Hubtisch 1, der einen Stapel Blechtafeln 2 trägt. Die jeweils oberste Blechtafel 2 wird von vier Saugnäpfen 3 ergriffen und durch Walzenspalte 4, 5 auf eine Fördertisch 6 vorgefördert. Auf dem Fördertisch 6 bewegen sich zwei Vorschubbalken 7, 8 sowohl parallel zur Längsachse 9 als auch schrittweise quer dazu. Die Vorschubbalken 7, 8 ergreifen jeweils eine Blechtafel 2 an der in der Förderrichtung gesehen hinteren Kante mit Spannzangen 21 und sorgen so für einen schrittweisen Vorschub der Blechtafeln 2 sowohl in axiale Richtung als auch schrittweise quer dazu zur Durchführung der Ausstanzungen von Platinen 10 durch ein Stanz­werkzeug 11. Figur 2 läßt erkennen, daß in dem dargestellten Ausführungsbeispiel ovale Platinen 10 gestanzt werden und daß aus einer Blechtafel 2 zwölf Platinen gestanzt werden, wobei vier Platinen über die Breite der Blechtafel 2 nebeneinander ausge­stanzt werden. Hierfür werden zwei Stanzwerkzeuge 11 verwendet, die einen freien Abstand einer Platinenbreite aufweisen.The processing sequence from right to left is shown in FIGS. 1 and 2. On the right side there is a lifting table 1, which carries a stack of metal sheets 2. The uppermost sheet metal plate 2 is gripped by four suction cups 3 and advanced through roller nips 4, 5 onto a conveyor table 6. On the conveyor table 6, two feed bars 7, 8 move both parallel to the longitudinal axis 9 and stepwise transversely thereto. The feed bars 7, 8 each grip a metal sheet 2 on the rear edge seen in the conveying direction with collets 21 and thus ensure a gradual feed of the metal sheets 2 both in the axial direction and stepwise transversely thereto in order to punch out the blanks 10 by means of a punching tool 11. Figure 2 shows that in the illustrated embodiment oval boards 10 are punched and that twelve boards are punched from a metal sheet 2, four boards being punched out side by side across the width of the metal sheet 2. For this purpose, two punching tools 11 are used, which have a free spacing of a board width.

Im Anschluß an das Stanzwerkzeug ist eine Schrottschere 12 an­geordnet, die nach dem Vorschub der Blechtafel 2 die ausgestanzte Gitterreihe abtrennt. Über ein Förderband 13 werden die abge­ schnittenen Gitterstreifen seitlich platzsparend abtranspor­tiert.Following the punching tool, scrap shears 12 are arranged which, after the sheet metal sheet 2 has been advanced, sever the row of bars which have been punched out. Abge on a conveyor belt 13 cut grid strips laterally transported to save space.

Die ausgeschnittenen Platinen 10 werden nun schrittweise in eine Transferpresse 14 transportiert, die drei hintereinander angeordnete verschiedene Ziehwerkzeuge 15, 16, 17 zur Durchführung eines dreistufigen Ziehvorganges aufweist. Die Bördelkanten der so hergestellten tiefgezogenen Dosen werden in einer Arbeitsstation 18 beschnitten. Anschließend können die tiefgezogenen, vorzugsweisen konischen Dosen abtransportiert und gestapelt werden.The cut blanks 10 are then transported step by step into a transfer press 14 which has three different drawing tools 15, 16, 17 arranged one behind the other for carrying out a three-stage drawing process. The flanged edges of the deep-drawn cans thus produced are trimmed in a work station 18. The deep-drawn, preferably conical cans can then be removed and stacked.

Die Verwendung zweier Vorschubbalken 7, 8 hat den Vorteil, daß das Stanzen ohne einen Leerhub erfolgen kann. Der Vorschub der Vorschubbalken 7, 8 erfolgt mit Motoren 26, die jeweils eine Spindel 26′ antreiben.The use of two feed bars 7, 8 has the advantage that the punching can be done without an idle stroke. The feed of the feed bars 7, 8 takes place with motors 26, each of which drives a spindle 26 '.

Die beiden Vorschubbalken 7, 8 sind an verschiedenen Seiten gelagert und übergreifen den Fördertisch 6 freischwebend. Sie sind beide hoch kippbar gelagert, um beim Zurückfahren dem jeweils anderen Vorschubbalken 7, 8 den Vorschub der ergriffenen Blechtafel 2 in das Stanzwerkzeug 11 zu ermöglichen.The two feed bars 7, 8 are supported on different sides and overlap the conveyor table 6 in a free-floating manner. They are both mounted so that they can be tilted to enable the other feed bars 7, 8 to be fed into the punching tool 11 when the sheet metal plate 2 is gripped.

Der Antrieb sowohl des Stanzwerkzeugs 11 wie auch der Ziehwerk­zeuge 15, 16, 17 erfolgt über eine gemeinsame Exzenterwelle 19, die im Maschinengestell 20 der Vorrichtung gelagert ist.Both the punch 11 and the drawing tools 15, 16, 17 are driven via a common eccentric shaft 19 which is mounted in the machine frame 20 of the device.

Figur 3 läßt die beiden Vorschubbalken 7, 8 erkennen, die jeweils mit einem Führungsblock 19′ in einer Führung 20′ des Förder­tisches 6 gelagert sind. Dabei übergreift der Führungsblock 19′ jeweils eine Stange 25 an der Längsseite des Fördertisches 6, die als Kippachse für eine Hochkippbewegung der Vorschubbalken 7, 8 dient, die für den Vorschubbalken 8 in Figur 3 gestrichelt ange­deutet ist.Figure 3 shows the two feed bars 7, 8, each of which is mounted with a guide block 19 'in a guide 20' of the conveyor table 6. The guide block 19 'overlaps a rod 25 on the longitudinal side of the conveyor table 6, which serves as a tilt axis for a tilting movement of the feed bars 7, 8, which is indicated by dashed lines for the feed bar 8 in Figure 3.

Jeder Vorschubbalken 7, 8 weist an seinem mit dem Führungsblock 19′ versehenen Ende einen Motor 22 auf, der eine Spindel im Innern des Führungsbalkens rotieren läßt, auf der Spindelnüsse der Spannzangen 21 gelagert sind, so daß durch die Rotation des Motors 22 die seitliche Lage der Spannzangen 21 verstellbar ist.Each feed bar 7, 8 has on its with the guide block 19 'provided end of a motor 22 which rotates a spindle inside the guide beam on which spindle nuts of the collets 21 are mounted, so that the lateral position of the collets 21 is adjustable by the rotation of the motor 22.

Der Führungsblock 19′ übergreift ferner mit entsprechenden Spindel­nüssen 23 die Spindeln 13′, die die Verschiebung des jeweiligen Vorschubbalkens 7, 8 oder in entgegen der Förderrichtung bewirken.The guide block 19 'also overlaps with corresponding spindle nuts 23, the spindles 13', which cause the displacement of the respective feed beam 7, 8 or in the opposite direction to the conveying direction.

Das Hochkippen der Vorschubbalken 7, 8 wird durch jeweils einen Hydraulikzylinder 24 bewirkt, der gelenkig an der Unterseite des Führungsblocks 19′ befestigt ist.The tilting of the feed beam 7, 8 is effected by a hydraulic cylinder 24 which is articulated to the underside of the guide block 19 '.

Die gestrichelt dargestellte hochgeschwenkte Position des Vor­schubbalkens 8 während seiner Rückholbewegung erlaubt das stö­rungsfreie Vorschieben einer Blechtafel 2 durch den Vorschub­balken 7 in das Stanzwerkzeug 11, ohne daß dieses einen Leerhub ausführen müßte.The dashed-up position of the feed bar 8 shown in dashed lines during its return movement permits the trouble-free advancement of a metal sheet 2 through the feed bar 7 into the punching tool 11, without this having to carry out an idle stroke.

Claims (1)

Vorschubeinrichtung zum Zuführen von Blechtafeln zu wenigstens einem stationären Stanzwerkzeug, mit dem aus den Blechtafeln Platinen ausgestanzt werden, mit einem in Vorschubrichtung auf einem Fördertisch verfahrbaren, einseitig gelagerten Vorschub­balken mit die Blechtafel ergreifenden Spannzangen, die am Vor­schubbalken quer zur Vorschubrichtung seitlich verfahrbar sind, dadurch gekennzeichnet, daß ein zweiter Vorschubbalken (8) vor­gesehen ist, daß beide Vorschubbalken (7, 8) auf jeweils einer anderen Längsseite des Vorschubtisches (6) einseitig gelagert sind und daß beide Vorschubbalken (7, 8) jeweils um ein mit seiner Achse in Förderrichtung zeigendes Drehgelenk (25) hochschwenkbar sind.Feed device for feeding sheet metal sheets to at least one stationary punching tool, with which blanks are punched out of the sheet metal sheets, with a feed bar that can be moved in the feed direction on a conveyor table, with one-sided feed bar with collets gripping the sheet metal plate and that can be moved laterally on the feed bar transversely to the feed direction That a second feed bar (8) is provided, that both feed bars (7, 8) are supported on one side on each other on the longitudinal side of the feed table (6) and that both feed bars (7, 8) each have one axis with their axis in the conveying direction Swivel joint (25) can be swiveled up.
EP89109812A 1988-06-03 1989-05-31 Advancing device for feeding sheet metal to a stamping tool Expired - Lifetime EP0344741B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3818822 1988-06-03
DE3818822A DE3818822C1 (en) 1988-06-03 1988-06-03

Publications (3)

Publication Number Publication Date
EP0344741A2 true EP0344741A2 (en) 1989-12-06
EP0344741A3 EP0344741A3 (en) 1991-02-27
EP0344741B1 EP0344741B1 (en) 1993-03-31

Family

ID=6355723

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89109812A Expired - Lifetime EP0344741B1 (en) 1988-06-03 1989-05-31 Advancing device for feeding sheet metal to a stamping tool

Country Status (3)

Country Link
EP (1) EP0344741B1 (en)
DD (1) DD283781A5 (en)
DE (2) DE3818822C1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19755338A1 (en) * 1997-12-15 1999-06-24 Naroska Maschinenfabrik Gmbh Press work piece feed
EP1304180A1 (en) * 2001-10-15 2003-04-23 Elpatronic Ag Feeding of sheets to a punching machine
ES2189638A1 (en) * 2000-05-17 2003-07-01 Amada Schiavi S R L Transfer device for sheet from workstation, especially stamping station, to store has vertically and horizontally movable carriage on base structure, loading/unloading arrangement

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2149067A1 (en) * 1971-10-01 1973-04-05 Manfred Wanzke Werkzeug App Un FEED UNIT
DE2254355A1 (en) * 1972-11-07 1974-05-16 Schuler Gmbh L INFEED AND DISCHARGE DEVICE FOR TABLE OR STRIP-SHAPED WORKPIECES ON PRESSES
DE2258644A1 (en) * 1972-11-30 1974-06-06 Sandt Ag J FEED DEVICE FOR RAIL-SHAPED GOODS TO PROCESSING MACHINES WITH HOLDING TONGS AND FEEDING TONGS
DE3336068A1 (en) * 1983-10-04 1985-04-18 Hermann Klann Metall- und Blechwarenfabrik GmbH, 8300 Landshut Transfer device
EP0195952A2 (en) * 1985-03-23 1986-10-01 L. SCHULER GmbH Gripping devices for idle stage areas of a transfer press

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2149067A1 (en) * 1971-10-01 1973-04-05 Manfred Wanzke Werkzeug App Un FEED UNIT
DE2254355A1 (en) * 1972-11-07 1974-05-16 Schuler Gmbh L INFEED AND DISCHARGE DEVICE FOR TABLE OR STRIP-SHAPED WORKPIECES ON PRESSES
DE2258644A1 (en) * 1972-11-30 1974-06-06 Sandt Ag J FEED DEVICE FOR RAIL-SHAPED GOODS TO PROCESSING MACHINES WITH HOLDING TONGS AND FEEDING TONGS
DE3336068A1 (en) * 1983-10-04 1985-04-18 Hermann Klann Metall- und Blechwarenfabrik GmbH, 8300 Landshut Transfer device
EP0195952A2 (en) * 1985-03-23 1986-10-01 L. SCHULER GmbH Gripping devices for idle stage areas of a transfer press

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19755338A1 (en) * 1997-12-15 1999-06-24 Naroska Maschinenfabrik Gmbh Press work piece feed
DE19755338C2 (en) * 1997-12-15 2001-12-13 Schmalbach Lubeca Feeding device and feeding method for plate-shaped workpieces
ES2189638A1 (en) * 2000-05-17 2003-07-01 Amada Schiavi S R L Transfer device for sheet from workstation, especially stamping station, to store has vertically and horizontally movable carriage on base structure, loading/unloading arrangement
EP1304180A1 (en) * 2001-10-15 2003-04-23 Elpatronic Ag Feeding of sheets to a punching machine

Also Published As

Publication number Publication date
DE3818822C1 (en) 1989-04-13
DD283781A5 (en) 1990-10-24
DE58903916D1 (en) 1993-05-06
EP0344741A3 (en) 1991-02-27
EP0344741B1 (en) 1993-03-31

Similar Documents

Publication Publication Date Title
DE3418432C2 (en) Multiple processing machine for workpieces consisting of flat material, in particular sheet metal
EP0242763B1 (en) Apparatus for cutting piles of sheets
DE19621658C2 (en) Processing machine for plate-shaped workpieces, in particular for producing curved edges on sheet metal parts
EP2036629A1 (en) Method and device for fine cutting and forming of a workpiece
DE60003048T2 (en) PUNCHING DEVICE FOR PUNCHING THIN SHEETS
DE2254262C2 (en) Device for attaching fittings to workpieces
CH667609A5 (en) MACHINE SCISSORS.
EP1018408B1 (en) Guillotine-type machine for cutting stacked sheet material
DE2524487C3 (en) Device for producing and bundling labels
DE2804759A1 (en) FEED DEVICE FOR SURFACE MATERIAL, IN PARTICULAR FOR PANELS
EP1018409A1 (en) Method for forming and further processing of small stacks of sheet material
DE3613315A1 (en) ARRANGEMENT FOR FEEDING STACKED, SHEET-SHAPED GOODS TO A PROCESSING STATION, IN PARTICULAR CUTTING STATION
EP0344741B1 (en) Advancing device for feeding sheet metal to a stamping tool
EP0778094A1 (en) Transfer device for multi-stage presses
DE3841683A1 (en) Apparatus for cutting out and, if required, simultaneously forming parts from sheet plates
EP2228182B1 (en) Method of creating pre-trimmed stacks using a guillotine
DE2539157A1 (en) Stamping machine with tool carrier along workpiece - has tool carrier suspended inside U shaped frame
DE2640379A1 (en) High speed automatic punch - has guide along side of supply table with endless belt running at angle to feed direction
DE19755338C2 (en) Feeding device and feeding method for plate-shaped workpieces
EP0730516B1 (en) Device for longitudinally working solid timber workpieces
DE3818824C1 (en)
DE2717508A1 (en) Automatic sheet metal pattern cutter - has conveyor to support sheets during cutting by scissor shears and by computer controlled notching cutters
DE3703700C2 (en) Punching press with an automatic tool changing device
DE19617704C2 (en) Device for processing metal sheets on inclined C-frame presses
DE3339963A1 (en) Transfer press system

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

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): BE CH DE FR GB IT LI NL

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): BE CH DE FR GB IT LI NL

17P Request for examination filed

Effective date: 19910427

17Q First examination report despatched

Effective date: 19920521

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE CH DE FR GB IT LI NL

REF Corresponds to:

Ref document number: 58903916

Country of ref document: DE

Date of ref document: 19930506

ITF It: translation for a ep patent filed

Owner name: MODIANO & ASSOCIATI S.R.L.

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19930528

ET Fr: translation filed
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
REG Reference to a national code

Ref country code: CH

Ref legal event code: PUE

Owner name: KARGES-HAMMER-MASCHINEN GMBH & CO. KG TRANSFER- JO

Ref country code: CH

Ref legal event code: NV

Representative=s name: PATENTANWAELTE SCHAAD, BALASS, MENZL & PARTNER AG

NLS Nl: assignments of ep-patents

Owner name: JOST INDUSTRIEBETEILIGUNGSGESELLSCHAFT MBH, BERLIN

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

REG Reference to a national code

Ref country code: CH

Ref legal event code: PUE

Owner name: JOST INDUSTRIEBETEILIGUNGSGESELLSCHAFT MBH, BERLIN

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

NLS Nl: assignments of ep-patents

Owner name: ELPATRONIC AG

BECA Be: change of holder's address

Free format text: 20020129 *ELPATRONIC A.G.:8962 BERGDIETIKON

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

NLS Nl: assignments of ep-patents

Owner name: ELPATRONIC AG

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

Ref country code: CH

Payment date: 20060515

Year of fee payment: 18

Ref country code: NL

Payment date: 20060515

Year of fee payment: 18

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

Ref country code: FR

Payment date: 20060519

Year of fee payment: 18

Ref country code: DE

Payment date: 20060519

Year of fee payment: 18

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

Ref country code: GB

Payment date: 20060522

Year of fee payment: 18

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

Ref country code: IT

Payment date: 20060531

Year of fee payment: 18

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

Ref country code: BE

Payment date: 20060616

Year of fee payment: 18

BERE Be: lapsed

Owner name: *ELPATRONIC A.G.

Effective date: 20070531

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20070531

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

Ref country code: NL

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

Effective date: 20071201

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20071201

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

Ref country code: CH

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

Effective date: 20070531

Ref country code: LI

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

Effective date: 20070531

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20080131

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: 20070531

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

Ref country code: DE

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

Effective date: 20071201

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

Ref country code: GB

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

Effective date: 20070531

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

Ref country code: FR

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

Effective date: 20070531

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

Ref country code: IT

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

Effective date: 20070531