EP0401714B1 - Device for positioning of plates - Google Patents

Device for positioning of plates Download PDF

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Publication number
EP0401714B1
EP0401714B1 EP90110512A EP90110512A EP0401714B1 EP 0401714 B1 EP0401714 B1 EP 0401714B1 EP 90110512 A EP90110512 A EP 90110512A EP 90110512 A EP90110512 A EP 90110512A EP 0401714 B1 EP0401714 B1 EP 0401714B1
Authority
EP
European Patent Office
Prior art keywords
stop
sheets
magnet
stops
force field
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.)
Expired - Lifetime
Application number
EP90110512A
Other languages
German (de)
French (fr)
Other versions
EP0401714A1 (en
Inventor
Gerhard Tappen
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.)
L Schuler GmbH
Original Assignee
L Schuler 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 L Schuler GmbH filed Critical L Schuler GmbH
Publication of EP0401714A1 publication Critical patent/EP0401714A1/en
Application granted granted Critical
Publication of EP0401714B1 publication Critical patent/EP0401714B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B21D43/05—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work specially adapted for multi-stage presses
    • 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
    • B21D43/021—Control or correction devices in association with moving strips
    • 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
    • B21D43/18—Advancing work in relation to the stroke of the die or tool by means in pneumatic or magnetic engagement with the work
    • 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
    • B21D43/26—Stops

Definitions

  • the invention relates to a clipboard according to the preamble of claim 1.
  • An clipboard of this gathing is known for example from EP-B-0140189.
  • the sheets aligned in intermediate storage stations are gripped by grippers of a press located on gripper rails and folded over in the processing stages thereof.
  • the sheets are aligned in the direction of passage through the press by means of stops.
  • the incoming sheet metal is guided against resilient stops and moved back by these against fixed stops.
  • a sheet 5 made of a magnetizable iron or steel is aligned on the clipboard 6 in FIG. 1 and is to be fed to the processing station 9, here the tool 2 of a press 1, by means of an insertion feeder 3.
  • the sheet was moved to the clipboard via a roller or belt conveyor 4.
  • the clipboard has a roller conveyor 7 on which the sheet has been guided up to the stop due to its movement in the plane of movement 15. As a result of the impact against the stop, the sheet bounces back a distance.
  • the force field 11 of a magnet 10 here one of the magnets of the size of its force that can be controlled, excited, is used according to FIG. 2.
  • the magnet has poles 13 and 14 formed by the core.
  • the stop is located between the poles in the force field in such a way that it is closer to the pole assigned to the contact region 12 (here the pole 13) than to the pole 14.
  • Position 16 indicates the excitation coil for generating a variable force field.
  • Fig. 3 sheets 5 of different sizes are indicated lying on the clipboard 6.
  • the stops 8 are to be adjusted according to their size. This can be done by automatically lowering the stops by means of working cylinders and movements in the plane below the roller conveyor 7 caused by adjusting means. The required stops are then raised in the newly selected position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Registering Or Overturning Sheets (AREA)

Description

Die Erfindung betrifft eine Zwischenablage nach dem Oberbegriff von Anspruch 1. Eine Zwischenablage dieser Gathung ist beispielsweise aus der EP-B- 0140189 bekannt.The invention relates to a clipboard according to the preamble of claim 1. An clipboard of this gathing is known for example from EP-B-0140189.

Um Bleche einer Bearbeitungsstation, z.B. einem Werkzeug in einer Bearbeitungsfolge zuzuführen, werden diese ausgerichtet vor dem Erfassen durch einen Einlegefeeder.Around sheets of a processing station, e.g. a tool in a machining sequence, these are aligned before being recorded by an insertion feeder.

Im Unterschied dazu werden entsprechend der in der EP-B-0 140 189 beschriebenen Zuführeinrichtung die in Zwischenablagestationen ausgerichteten Bleche von an Greiferschienen befindlichen Greifern einer Presse erfaßt und in den Bearbeitungsstufen dieser umgelegt. Die Ausrichtung der Bleche in Richtung des Durchlaufs durch die Presse erfolgt durch Anschläge. Das ankommende Blech wird gegen federnd nachgebende Anschläge geführt und von diesen gegen feste Anschläge zurückbewegt.In contrast to this, in accordance with the feed device described in EP-B-0 140 189, the sheets aligned in intermediate storage stations are gripped by grippers of a press located on gripper rails and folded over in the processing stages thereof. The sheets are aligned in the direction of passage through the press by means of stops. The incoming sheet metal is guided against resilient stops and moved back by these against fixed stops.

Demgegenüber ist es Aufgabe der Erfindung, die Bewegung der der Zwischenablage- bzw. Ausrichtstation zugeführten Bleche nicht durch Anschläge in der Bewegungsebene der Bleche zu behindern, bevor diese zur Ausrichtlage kommen. Hierbei ist es erforderlich, die durch den Aufprall an den festen, die Ausrichtung bestimmenden Anschlägen bewirkte rückgeführte Bewegung der Bleche zu kompensieren.In contrast, it is an object of the invention not to hinder the movement of the sheets fed to the intermediate storage or alignment station by stops in the plane of movement of the sheets before they come to the alignment position. Here, it is necessary to compensate for the return movement of the sheets caused by the impact on the fixed stops determining the alignment.

Diese Aufgabe wird gelöst durch die kennzeichnenden Merkmale des Anspruchs 1. Die Merkmale der weiteren Ansprüche stellen bevorzugte Ausgestaltungen der Erfindung dar.This object is achieved by the characterizing features of claim 1. The features of the further claims represent preferred embodiments of the invention.

Von besonderem Vorteil hierbei ist, daß die Bewegung zur erneuten Anlage der Bleche an dem Anschlage bzw. an den Anschlägen nach dem Aufprall und der dadurch bewirkten rückgeführten Bewegung nicht durch weitere bewegte Mittel erfolgt. Das Kraftfeld jedes der Magnete für die Anlegebewegung der Bleche an den Anschlägen ist auf die Maße der Bleche - Dicke - einstellbar. Es wird die Anziehungskraft des Magneten jedes Anschlags voll genutzt.It is of particular advantage here that the movement for renewed contact of the metal sheets on the stops or on the stops after the impact and the return movement caused thereby does not occur further moving funds are made. The force field of each of the magnets for the movement of the sheets against the stops can be adjusted to the dimensions of the sheets - thickness. The attraction of the magnet of each stop is fully used.

Anhang eines Ausführungsbeispiels in den Figuren soll die Erfindung im folgenden näher erläutert werden.The invention is to be explained in more detail below in the form of an exemplary embodiment in the figures.

Es zeigen:

  • Fig. 1 eine Frontansicht auf den einer Presse vorgelagerten Zwischenablage-Bereich,
  • Fig. 2 eine vergrößerte Ausschnittdarstellung im Bereich eines Anschlage in Fig. 1 und
  • Fig. 3 eine Draufsicht auf den Zwischenablagebereich.
Show it:
  • 1 is a front view of the intermediate storage area upstream of a press,
  • Fig. 2 is an enlarged detail view in the area of a stop in Fig. 1 and
  • Fig. 3 is a plan view of the clipboard area.

Auf der Zwischenablage 6 in Fig. 1 ist ein Blech 5 aus einem magnetisierbaren Eisen bzw. Stahl ausgerichtet, das vermittels Einlegefeeder 3 der Bearbeitungsstation 9, hier dem Werkzeug 2 einer Presse 1, zugeführt werden soll. Das Blech wurde über einen Rollen- oder Gurtförderer 4 in die Zwischenablage bewegt.A sheet 5 made of a magnetizable iron or steel is aligned on the clipboard 6 in FIG. 1 and is to be fed to the processing station 9, here the tool 2 of a press 1, by means of an insertion feeder 3. The sheet was moved to the clipboard via a roller or belt conveyor 4.

Die Zwischenablage weist eine Rollenbahn 7 auf, auf der das Blech aufgrund dessen Bewegung in der Bewegungsebene 15 bis gegen den Anschlag geführt wurde. Als Folge des Aufpralls gegen den Anschlag prallt das Blech um eine Strecke zurück.The clipboard has a roller conveyor 7 on which the sheet has been guided up to the stop due to its movement in the plane of movement 15. As a result of the impact against the stop, the sheet bounces back a distance.

Um nun das Blech 5 erneut gegen den Anschlag 8 zu ziehen und es dadurch auszurichten, wird nach Fig. 2 das Kraftfeld 11 eines Magneten 10, hier eines der in der Größe seines Kraft steuerbaren, erregbaren, Magneten genutzt. Der Magnet weist durch den Kern gebildete Pole 13 und 14 auf. Der Anschlag ist zwischen den Polen in dem Kraftfeld angebracht und zwar so, daß er dem dem Anlagebereich 12 zugeordneten Pol (hier dem Pol 13) näher liegt als dem Pol 14. Position 16 weist hin auf die Erregerspule zur Erzeugung eines variablen Kraftfeldes.In order to now pull the sheet 5 again against the stop 8 and thereby align it, the force field 11 of a magnet 10, here one of the magnets of the size of its force that can be controlled, excited, is used according to FIG. 2. The magnet has poles 13 and 14 formed by the core. The stop is located between the poles in the force field in such a way that it is closer to the pole assigned to the contact region 12 (here the pole 13) than to the pole 14. Position 16 indicates the excitation coil for generating a variable force field.

In Fig. 3 sind Bleche 5 unterschiedlicher Größe auf der Zwischenablage 6 aufliegend angedeutet. Die Anschläge 8 sind entsprechend deren Größe zu verstellen. Dieses kann durch automatisches Absenken der Anschläge vermittels Arbeitszylinder und durch Stellmittel bewirkte Bewegungen in der Ebene unterhalb der Rollenbahn 7 erfolgen. Die benötigten Anschläge werden danach in der neu gewählten Position hochgestellt.In Fig. 3 sheets 5 of different sizes are indicated lying on the clipboard 6. The stops 8 are to be adjusted according to their size. This can be done by automatically lowering the stops by means of working cylinders and movements in the plane below the roller conveyor 7 caused by adjusting means. The required stops are then raised in the newly selected position.

Claims (3)

  1. An intermediate repository connected upstream of the machining station of a press, with stops for positioning individual iron/steel sheets, against which stops the sheets are guided in an essentially horizontal movement with the aid of conveying means, characterised by the use of at least one magnet (10) which is assigned to a stop (8) which is stationary in operation, the stop (8) being arranged between the poles (13, 14) of the magnet (10) in such a manner that each of the sheets (5) is braked in the rebound movement directed away from the stop (8) counter to the (supply) movement and is, by the force field (11) of the magnet (10), again moved against the stop (8) and held in contact against this.
  2. Arrangement according to Claim 1, characterised in that the stop (8) is arranged in the vicinity, the force field (11), of one of the two poles (13, 14).
  3. Arrangement according to Claim 1, characterised in that the magnet (10) is an electromagnet which is controllable in its force field (11).
EP90110512A 1989-06-05 1990-06-02 Device for positioning of plates Expired - Lifetime EP0401714B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3918302 1989-06-05
DE3918302A DE3918302A1 (en) 1989-06-05 1989-06-05 DEVICE FOR POSITIONING SHEETS

Publications (2)

Publication Number Publication Date
EP0401714A1 EP0401714A1 (en) 1990-12-12
EP0401714B1 true EP0401714B1 (en) 1993-08-25

Family

ID=6382104

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90110512A Expired - Lifetime EP0401714B1 (en) 1989-06-05 1990-06-02 Device for positioning of plates

Country Status (3)

Country Link
EP (1) EP0401714B1 (en)
DE (2) DE3918302A1 (en)
ES (1) ES2045647T3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2355950A (en) * 1999-10-20 2001-05-09 Kenneth Martin Cherrington Squaring arm

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3557598A (en) * 1969-03-04 1971-01-26 Kaiser Aluminium Chem Corp Electromagnetic feeding device
DD219400A1 (en) * 1983-11-30 1985-03-06 Ammendorf Waggonbau FEEDING DEVICE FOR STRIP MATERIAL FEEDING AND FEEDING, ESPECIALLY ON LEAD MACHINING MACHINES

Also Published As

Publication number Publication date
DE3918302A1 (en) 1990-12-06
EP0401714A1 (en) 1990-12-12
ES2045647T3 (en) 1994-01-16
DE59002433D1 (en) 1993-09-30

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