EP0406608A1 - Device for unstacking and conveying printed circuits - Google Patents

Device for unstacking and conveying printed circuits Download PDF

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Publication number
EP0406608A1
EP0406608A1 EP19900111413 EP90111413A EP0406608A1 EP 0406608 A1 EP0406608 A1 EP 0406608A1 EP 19900111413 EP19900111413 EP 19900111413 EP 90111413 A EP90111413 A EP 90111413A EP 0406608 A1 EP0406608 A1 EP 0406608A1
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EP
European Patent Office
Prior art keywords
carrier
board
stack
plane
guides
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
EP19900111413
Other languages
German (de)
French (fr)
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EP0406608B1 (en
Inventor
Othmar Stieger
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
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Elpatronic AG
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Publication date
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Publication of EP0406608A1 publication Critical patent/EP0406608A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/08—Separating articles from piles using pneumatic force
    • 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
    • B21D43/20—Storage arrangements; Piling or unpiling
    • B21D43/24—Devices for removing sheets from a stack
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/08—Separating articles from piles using pneumatic force
    • B65H3/0808—Suction grippers
    • B65H3/085—Suction grippers separating from the bottom of pile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/36—Separating articles from piles by separators moved in special paths, e.g. enclosing an area
    • B65H3/38—Separating articles from piles by separators moved in special paths, e.g. enclosing an area the paths not enclosing an area
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/08—Feeding articles separated from piles; Feeding articles to machines by grippers, e.g. suction grippers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18888—Reciprocating to or from oscillating

Definitions

  • the invention relates to a device for unstacking and conveying boards, in particular blanks for tin frames made of sheet metal - stack guides in which a stack of boards is guided, at least one adhesive body, which can be placed on a circuit board exposed in the stack in order to capture it, a carrier which carries the adhesive body and can be moved away from the stack with this and the circuit board adhering thereto, and - A pair of conveyor links, which grasp and advance the board conveyed by the carrier.
  • Devices of this type are usually used in the manufacture of can bodies in order to insert rectangularly cut boards into a device for rounding the boards. This must be done with short cycle times on the order of 0.1 to 0.2 seconds, for example, and with great accuracy.
  • a device of the type mentioned in which the bottom plate of a stack held between vertical stack guides on its underside by one or in each working cycle several suction cups attached to a carrier is detected.
  • the carrier is connected by a parallelogram to a stationary frame in such a way that it can be moved parallel to itself in an arc that only leads vertically downwards and gradually transitions into a horizontal direction of movement. With each such movement, a board is placed on a pair of parallel guide rails, which are arranged horizontally below the stack guide. A carriage can be moved back and forth along the guide rails, on which pairs of pawls are arranged to take away a circuit board.
  • the stacking of boards can also be done upwards.
  • US 3409149 A another device of the type described in the opening paragraph is known, in which the top board of a stack is gripped by several suction cups in each working cycle, which are hung on rods which extend downwards between magnetic rollers from a frame-like carrier .
  • the carrier hangs on parallelogram links and is movable upwards in such a way that the circuit board gripped by the suction cups is raised into a position in which it rests on belts which wrap around the magnetic rollers. In this position, the board is released and fed horizontally by the belts to a pair of rollers which grips the board and conveys it further.
  • the removal of the boards from the stack is a first operation and the transfer of the boards to the pair of conveying members, from which the boards are gripped on both sides, is a second operation which is separate from the first.
  • the present invention is based on the knowledge that this separation is the cause of vibrations of the boards, which occur in the known devices and can reduce the frequency and the accuracy of the board movements from the stack to the conveying members.
  • the invention is therefore based on the object of designing a device for unstacking and conveying boards, in particular blanks for tin frames made of sheet metal, in such a way that the boards can be fed quickly, largely free of vibration and precisely to the conveying members provided for the further conveying of the boards.
  • the carrier is movable on a path which, starting from the stack, extends transversely to the plane of the board, then merges in a direction leading at least approximately parallel to the plane of the board to the pair of conveying members and finally runs across the board level again.
  • the device shown is intended for unstacking and conveying boards 10, which are kept in the form of a stack 12 between vertical stack guides 14.
  • the stack guides 14 are connected to one another in pairs by edge strips 16, each of which has an inwardly projecting projection 18 on which the bottom board 10 rests.
  • two parallel vertical plates 20 are arranged, only one of which is shown.
  • a serpentine groove is machined, which forms a guide curve 22 and has three vertical sections 24, 26 and 28 and horizontal sections 30 and 32 in between.
  • Each of the sections 24 to 32 mentioned can be as short as desired and, in extreme cases, only be formed by a turning point between successive arc sections, preferably quarter-circle arcs.
  • the guide curves 22 can, for example, be milled into the two plates 20 with a end mill and have such a width that in each of the two guide curves 22 two cam followers 34 and 36 can be moved up and down without jamming, but also with almost no play.
  • the cam followers 34 and 36 are rollers in the example shown, which are mounted in pairs on a carrier 38.
  • the carrier 38 is connected by a ball joint 40 to one end of the connecting rod 42, which is length-adjustable in the manner of a turnbuckle.
  • the other end of the Connecting rod 42 is connected by a further ball joint 44 to a crank 46 which is fastened on the shaft 48 of a rotary motor 50.
  • the rotary motor 50 has a housing 52 in which the shaft 48 is mounted and a rotary vane 54 fastened to it can be rotated back and forth between adjustable stops 56 and 58.
  • the rotary motor 50 is of a commercially available type and can be driven with a pressurized fluid, preferably compressed air, which is fed to it via adjustable throttles. The distance and the speed at which the carrier 38 can be moved up and down along the guide curves 22 can thus be adjusted.
  • the plates 20 are arranged on a cross slide arrangement 60, likewise indicated, which is only indicated in FIG.
  • a vertical column 62 is attached to the carrier 38 and carries a yoke 64.
  • Several, for example two, adhesive bodies 66 are attached to the yoke 64, which in the example shown are formed by suction cups and can be placed on the underside of the lowermost board 10.
  • a pair of conveyor links 68 and 70 are arranged, which in the example shown are formed by horizontal rollers and are intended to grasp each individual board 10 on both sides, that is to say above and below, and to feed it to a device , from which they are rounded in order to be subsequently welded into cylindrical can frames.
  • the plane in which the shaft 48 of the rotary motor 50 lies is shown pivoted out of the plane of the drawing by 90 ° for the sake of clarity.
  • the shaft 48 extends at right angles to a tangential plane which affects the guide curves 22 and is inclined by 45 ° against the board plane which is horizontal in the example shown.
  • the connecting rod 42 is always at least approximately in this tangential plane.
  • FIG 3 shows the device at the beginning of a work cycle.
  • the rotary motor 50 and thus also the carrier 38, assumes an end position which is defined by the adjustable stop 58. In this end position, the adhesive bodies 66 grip the lowermost board 10 in the stack 12.
  • the rotary motor is then switched on, so that the carrier 38 is pulled obliquely downwards by the connecting rod 38.
  • the curve follower members 34 and 36 roll in the serpentine guide grooves 22 at the same time in exactly the same direction, so that the carrier 38 is guided without canting and the board 10 sucked in by the adhesive bodies 66 remains parallel, that is to say horizontal in the example shown.
  • the carrier 38 After rotation of the shaft 48 by approximately 110 ° to 120 °, the carrier 38 has reached the position according to FIG. 4, in which the right edge of the plate 10 in FIGS. 3 to 5 has penetrated between the conveying members 68 and 70 and from this is recorded. Now the adhesive bodies 66 release the circuit board 10. This can be done in that a vacuum previously applied to the adhesive bodies 66 is released or even replaced by an air blast. However, if the adhesive bodies 66 are electromagnets, these are reversed.
  • the rotary motor 50 continues to move until its rotary vane 54 abuts against the adjustable stop 56.
  • the carrier 38 reaches its end position shown in FIG. 5.
  • the direction of movement of the rotary motor 50 is reversed, so that the carrier 38 returns to its starting position according to FIG. 3.
  • rotary motor 50 instead of the rotary motor 50 shown, another drive means can be provided for the carrier 38, for example a pneumatic piston-cylinder unit.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Specific Conveyance Elements (AREA)
  • Stacking Of Articles And Auxiliary Devices (AREA)
  • Making Paper Articles (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

Ein Stapel (12) aus Platinen (10) ist zwischen Stapelführungen (14) geführt. An einem Träger (38) sind Haftkörper (66) angeordnet, die an eine im Stapel (12) freiliegende Platine anlegbar sind, um diese zu erfassen und mit ihr vom Stapel (12) wegbewegt zu werden. Dabei ist der Träger (38) auf einer Bahn bewegbar, die sich, vom Stapel (12) ausgehend, quer zur Platinenebene erstreckt, dann in eine mindestens annähernd parallel zur Platinenebene zu einem Paar Förder Förderglieder (68, 70) führende Richtung übergeht und schließlich wieder quer zur Platinenebene verläuft. Die Förderglieder (68, 70) erfassen die vom Träger (38) herangeförderte Platine (10) beidseitig und fördern sie weiter.A stack (12) of boards (10) is guided between stack guides (14). Adhesive bodies (66) are arranged on a carrier (38) and can be placed on a circuit board which is exposed in the stack (12) in order to grip it and to move it away from the stack (12). The carrier (38) can be moved on a path which, starting from the stack (12), extends transversely to the plane of the board, then changes in a direction leading at least approximately parallel to the plane of the board to a pair of conveyor conveyor members (68, 70) and finally again runs across the board level. The conveying members (68, 70) grasp the board (10) conveyed by the carrier (38) on both sides and convey it further.

Description

Die Erfindung betrifft eine Vorrichtung zum Entstapeln und Weiterfördern von Platinen, insbes. Zuschnitten für Dosen­zargen aus Blech, mit
- Stapelführungen, in denen ein Stapel aus Platinen ge­führt ist,
- mindestens einem Haftkörper, der an eine im Stapel frei­liegende Platine anlegbar ist, um diese zu erfassen,
- einem Träger, der den Haftkörper trägt und mit diesem sowie der daran haftenden Platine vom Stapel wegbewegbar ist, und
- einem Paar Förderglieder, welche die vom Träger heran­geförderte Platine erfassen und weiterfördern.The invention relates to a device for unstacking and conveying boards, in particular blanks for tin frames made of sheet metal
- stack guides in which a stack of boards is guided,
at least one adhesive body, which can be placed on a circuit board exposed in the stack in order to capture it,
a carrier which carries the adhesive body and can be moved away from the stack with this and the circuit board adhering thereto, and
- A pair of conveyor links, which grasp and advance the board conveyed by the carrier.

Beim Herstellen von Dosenzargen werden üblicherweise Vor­richtungen dieser Gattung verwendet, um rechteckig zuge­schnittene Platinen in eine Vorrichtung zum Runden der Platinen einzuführen. Dies muß mit kurzen Taktzeiten in der Größenordnung von beispielsweise 0,1 bis 0,2 Sekunden, und mit großer Genauigkeit geschehen.Devices of this type are usually used in the manufacture of can bodies in order to insert rectangularly cut boards into a device for rounding the boards. This must be done with short cycle times on the order of 0.1 to 0.2 seconds, for example, and with great accuracy.

Aus der DE 3526489 C2 ist eine Vorrichtung der genannten Gattung bekannt, bei der in jedem Arbeitszyklus die unter­ste Platine eines zwischen senkrechten Stapelführungen gehaltenen Stapels an ihrer Unterseite von einem oder mehreren an einem Träger befestigten Saugnäpfen erfaßt wird. Der Träger ist durch Parallelogrammlenker mit einem ortsfesten Gestell derart verbunden, daß er in einem vom Stapel erst senkrecht nach unten wegführenden und allmäh­lich in eine waagerechte Bewegungsrichtung übergehenden Bogen parallel zu sich selbst bewegbar ist. Bei jeder sol­chen Bewegung wird eine Platine auf einem Paar paralleler Führungsschienen abgelegt, die unterhalb der Stapelführung waagerecht angeordnet sind. Längs der Führungsschienen ist ein Schlitten hin- und herbewegbar, an dem Klinkenpaare zum Mitnehmen je einer Platine angeordnet sind.From DE 3526489 C2 a device of the type mentioned is known, in which the bottom plate of a stack held between vertical stack guides on its underside by one or in each working cycle several suction cups attached to a carrier is detected. The carrier is connected by a parallelogram to a stationary frame in such a way that it can be moved parallel to itself in an arc that only leads vertically downwards and gradually transitions into a horizontal direction of movement. With each such movement, a board is placed on a pair of parallel guide rails, which are arranged horizontally below the stack guide. A carriage can be moved back and forth along the guide rails, on which pairs of pawls are arranged to take away a circuit board.

Eine andere, ähnlich gestaltete Vorrichtung der eingangs beschriebenen Gattung ist aus der EP 0196494 A1 bekannt. Dort wird ebenfalls ein mit Saugnäpfen ausgestatteter Trä­ger von einem Exzenter derart auf- und abbewegt, daß er Platinen einem Stapel von unten einzeln entnimmt und auf einem Tisch ablegt, auf dem die Platinen von einem waage­recht hin- und herbewegbaren Schieber zwischen Walzenpaare eingeschoben werden, von denen sie waagerecht weitergeför­dert werden.Another, similarly designed device of the type described above is known from EP 0196494 A1. There, too, a carrier equipped with suction cups is moved up and down by an eccentric in such a way that it individually removes boards from a stack from below and places them on a table on which the boards are inserted between pairs of rollers by a horizontally movable slide which they are conveyed horizontally.

Das Abstapeln von Platinen kann auch nach oben geschehen. So ist aus der US 3409149 A eine weitere Vorrichtung der eingangs beschriebenen Gattung bekannt, bei der in jedem Arbeitszyklus die oberste Platine eines Stapels von mehre­ren Saugnäpfen erfaßt wird, die an Stangen aufgehängt sind, welche sich zwischen Magnetwalzen hindurch von einem rahmenartigen Träger nach unten erstrecken. Der Träger hängt an Parallelogrammlenkern und ist derart nach oben beweglich, daß die von den Saugern erfaßte Platine in eine Stellung angehoben wird, in der sie an Gurten anliegt, welche die Magnetwalzen umschlingen. In dieser Stellung wird die Platine freigegeben und von den Gurten waagerecht einem Walzenpaar zugeführt, das die Platine erfaßt und weiterfördert.The stacking of boards can also be done upwards. From US 3409149 A, another device of the type described in the opening paragraph is known, in which the top board of a stack is gripped by several suction cups in each working cycle, which are hung on rods which extend downwards between magnetic rollers from a frame-like carrier . The carrier hangs on parallelogram links and is movable upwards in such a way that the circuit board gripped by the suction cups is raised into a position in which it rests on belts which wrap around the magnetic rollers. In this position, the board is released and fed horizontally by the belts to a pair of rollers which grips the board and conveys it further.

Bei all diesen bekannten Vorrichtungen ist die Entnahme der Platinen vom Stapel ein erster Arbeitsgang und die Übergabe der Platinen an das Paar Förderglieder, von dem die Platinen beidseitig erfaßt werden, ist ein zweiter Arbeitsgang, der von dem ersten getrennt ist. Die vorlie­gende Erfindung beruht auf der Erkenntnis, daß diese Tren­nung die Ursache von Schwingungen der Platinen ist, die bei den bekannten Vorrichtungen auftreten und die Frequenz sowie die Genauigkeit der Platinenbewegungen vom Stapel zu den weiterfördernden Fördergliedern vermindern können.In all these known devices, the removal of the boards from the stack is a first operation and the transfer of the boards to the pair of conveying members, from which the boards are gripped on both sides, is a second operation which is separate from the first. The present invention is based on the knowledge that this separation is the cause of vibrations of the boards, which occur in the known devices and can reduce the frequency and the accuracy of the board movements from the stack to the conveying members.

Der Erfindung liegt deshalb die Aufgabe zugrunde, eine Vorrichtung zum Entstapeln und Weiterfördern von Platinen, insbes. Zuschnitten für Dosenzargen aus Blech, so zu ge­stalten, daß die Platinen den zum Weiterfördern der Pla­tinen vorgesehenen Fördergliedern schnell, weitgehend schwingungsfrei und genau zugeführt werden können.The invention is therefore based on the object of designing a device for unstacking and conveying boards, in particular blanks for tin frames made of sheet metal, in such a way that the boards can be fed quickly, largely free of vibration and precisely to the conveying members provided for the further conveying of the boards.

Die Aufgabe ist erfindungsgemäß mit einer Vorrichtung der eingangs beschriebenen Gattung dadurch gelöst, daß der Träger auf einer Bahn bewegbar ist, die sich, vom Stapel ausgehend, quer zur Platinenebene erstreckt, dann in eine mindestens annähernd parallel zur Platinenebene zu dem Paar Förderglieder führende Richtung übergeht und schließ­lich wieder quer zur Platinenebene verläuft.The object is achieved with a device of the type described in the introduction in that the carrier is movable on a path which, starting from the stack, extends transversely to the plane of the board, then merges in a direction leading at least approximately parallel to the plane of the board to the pair of conveying members and finally runs across the board level again.

Vorteilhafte Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen.Advantageous developments of the invention result from the subclaims.

Ein Ausführungsbeispiel der Erfindung wird im folgenden anhand schematischer Zeichnungen mit weiteren Einzelheiten erläutert. Es zeigen:

  • Fig. 1 eine Schrugansicht der Vorrichtung, die teil­weise in einer senkrechten Ebene aufgeschnit­ten ist,
  • Fig. 2 den Teilschnitt II-II in Fig. 1 und
  • Fig. 3 bis 5 vereinfachte Seitenansichten der Vorrichtung in drei aufeinanderfolgenden Arbeitsstellun­gen.
An embodiment of the invention is explained below with the aid of schematic drawings with further details. Show it:
  • 1 is a perspective view of the device, which is partially cut in a vertical plane,
  • Fig. 2 shows the partial section II-II in Fig. 1 and
  • Fig. 3 to 5 simplified side views of the device in three successive working positions.

Die dargestellte Vorrichtung ist zum Entstapeln und Wei­terfördern von Platinen 10 vorgesehen, die in Form eines Stapels 12 zwischen senkrechten Stapelführungen 14 bereit­gehalten werden. Die Stapelführungen 14 sind paarweise durch Randleisten 16 miteinander verbunden, die je einen nach innen ragenden Vorsprung 18 aufweisen, auf dem die jeweils unterste Platine 10 aufliegt.The device shown is intended for unstacking and conveying boards 10, which are kept in the form of a stack 12 between vertical stack guides 14. The stack guides 14 are connected to one another in pairs by edge strips 16, each of which has an inwardly projecting projection 18 on which the bottom board 10 rests.

In einem Abstand unterhalb des Stapels 12 sind zwei parallele senkrechte Platten 20 angeordnet, von denen nur eine dargestellt ist. In die einander zugewandten Flächen der beiden Platten 20 ist je eine schlangenlinienförmige Nut eingearbeitet, die eine Führungskurve 22 bildet und drei senkrechte Abschnitte 24, 26 und 28 sowie dazwi­schenliegende waagerechte Abschnitte 30 und 32 aufweist. Jeder der genannten Abschnitte 24 bis 32 kann beliebig kurz sein und im Extremfall nur von einem Wendepunkt zwischen aufeinanderfolgenden Kreisbogenabschnitten, vorzugsweise Viertelkreisbogen, gebildet sein.At a distance below the stack 12, two parallel vertical plates 20 are arranged, only one of which is shown. In the mutually facing surfaces of the two plates 20, a serpentine groove is machined, which forms a guide curve 22 and has three vertical sections 24, 26 and 28 and horizontal sections 30 and 32 in between. Each of the sections 24 to 32 mentioned can be as short as desired and, in extreme cases, only be formed by a turning point between successive arc sections, preferably quarter-circle arcs.

Die Führungskurven 22 können beispielsweise mit einem Fingerfräser in die beiden Platten 20 eingefräst sein und haben eine solche Breite, daß in jeder der beiden Füh­rungskurven 22 zwei Kurvenfolgeglieder 34 und 36 verklem­mungsfrei, aber auch nahezu spielfrei, auf- und abbewegbar sind. Die Kurvenfolgeglieder 34 und 36 sind im dargestell­ten Beispiel Rollen, die paarweise an einem Träger 38 gelagert sind. Der Träger 38 ist durch ein Kugelgelenk 40 mit einem Ende in dar Art eines Spannschlosses längenein­stellbaren Pleuels 42 verbunden. Das andere Ende des Pleuels 42 ist durch ein weiteres Kugelgelenk 44 mit einer Kurbel 46 verbunden, die auf der Welle 48 eines Drehmotors 50 befestigt ist.The guide curves 22 can, for example, be milled into the two plates 20 with a end mill and have such a width that in each of the two guide curves 22 two cam followers 34 and 36 can be moved up and down without jamming, but also with almost no play. The cam followers 34 and 36 are rollers in the example shown, which are mounted in pairs on a carrier 38. The carrier 38 is connected by a ball joint 40 to one end of the connecting rod 42, which is length-adjustable in the manner of a turnbuckle. The other end of the Connecting rod 42 is connected by a further ball joint 44 to a crank 46 which is fastened on the shaft 48 of a rotary motor 50.

Der Drehmotor 50 hat gemäß Fig. 2 ein Gehäuse 52, in dem die Welle 48 gelagert und ein an dieser befestigter Dreh­flügel 54 zwischen einstellbaren Anschlägen 56 und 58 hin- und herdrehbar ist. Der Drehmotor 50 ist von handelsübli­cher Bauart und mit einem unter Druck stehenden Fluid, vorzugsweise Druckluft, antreibbar, die ihm über ein­stellbare Drosseln zugeführt wird. Die Strecke und die Geschwindigkeit, mit welcher der Träger 38 längs der Füh­rungskurven 22 auf- und abbewegbar ist, sind somit ein­stellbar.2, the rotary motor 50 has a housing 52 in which the shaft 48 is mounted and a rotary vane 54 fastened to it can be rotated back and forth between adjustable stops 56 and 58. The rotary motor 50 is of a commercially available type and can be driven with a pressurized fluid, preferably compressed air, which is fed to it via adjustable throttles. The distance and the speed at which the carrier 38 can be moved up and down along the guide curves 22 can thus be adjusted.

Die Platten 20 sind an einer in Fig. 1 nur angedeuteten Kreuzschlittenanordnung 60 von ebenfalls üblicher Bauart derart angeordnet, daß die Lage der Platten 20 in bezug zueinander und zum Stapel 12 ebenfalls einstellbar ist.The plates 20 are arranged on a cross slide arrangement 60, likewise indicated, which is only indicated in FIG.

Am Träger 38 ist eine senkrechte Säule 62 befestigt, die ein Joch 64 trägt. Am Joch 64 sind mehrere, beispielsweise zwei, Haftkörper 66 befestigt, die im dargestellten Bei­spiel von Saugnäpfen gebildet und an die Unterseite der untersten Platine 10 anlegbar sind.A vertical column 62 is attached to the carrier 38 and carries a yoke 64. Several, for example two, adhesive bodies 66 are attached to the yoke 64, which in the example shown are formed by suction cups and can be placed on the underside of the lowermost board 10.

Unterhalb des in den Zeichnungen rechten Paars Stapelfüh­rungen 14 ist ein Paar Förderglieder 68 und 70 angeordnet, die im dargestellten Beispiel von waagerechten Walzen gebildet und dazu vorgesehen sind, jede einzelne Platine 10 an beiden Seiten, also oben und unten, zu erfassen und einer Vorrichtung zuzuführen, von der sie gerundet werden, um anschließend zu zylindrischen Dosenzargen verschweißt zu werden.Below the pair of stacking guides 14 on the right in the drawings, a pair of conveyor links 68 and 70 are arranged, which in the example shown are formed by horizontal rollers and are intended to grasp each individual board 10 on both sides, that is to say above and below, and to feed it to a device , from which they are rounded in order to be subsequently welded into cylindrical can frames.

In Fig. 3 bis 5 ist die Ebene, in der die Welle 48 des Drehmotors 50 liegt, der Deutlichkeit halber um 90° aus der Zeichnungsebene herausgeschwenkt gezeichnet. Tatsäch­lich erstreckt sich die Welle 48 aber, wie in Fig. 1 dar­gestellt, rechtwinklig zu einer Tangentialebene, welche die Führungskurven 22 tangiert und gegen die im darge­stellten Beispiel waagerechte Platinenebene um 45° geneigt ist. Das Pleuel 42 liegt ständig zumindest annähernd in dieser Tangentialebene.3 to 5, the plane in which the shaft 48 of the rotary motor 50 lies is shown pivoted out of the plane of the drawing by 90 ° for the sake of clarity. In fact, however, as shown in FIG. 1, the shaft 48 extends at right angles to a tangential plane which affects the guide curves 22 and is inclined by 45 ° against the board plane which is horizontal in the example shown. The connecting rod 42 is always at least approximately in this tangential plane.

Fig. 3 zeigt die Vorrichtung zu Beginn eines Arbeits­zyklus. Dabei nimmt der Drehmotor 50, und somit auch der Träger 38, eine Endstellung ein, die durch den einstell­baren Anschlag 58 festgelegt ist. In dieser Endstellung erfassen die Haftkörper 66 die unterste Platine 10 im Stapel 12.3 shows the device at the beginning of a work cycle. The rotary motor 50, and thus also the carrier 38, assumes an end position which is defined by the adjustable stop 58. In this end position, the adhesive bodies 66 grip the lowermost board 10 in the stack 12.

Anschließend wird der Drehmotor eingeschaltet, so daß der Träger 38 vom Pleuel 38 schräg nach unten gezogen wird. Dabei rollen die Kurvenfolgeglieder 34 und 36 in den schlangenlinenförmigen Führungsnuten 22 jeweils gleich­zeitig in genau gleicher Richtung, so daß der Träger 38 verkantungsfrei geführt wird und die von den Haftkörpern 66 angesaugte Platine 10 sich selbst parallel, im darge­stellten Beispiel also waagerecht, bleibt.The rotary motor is then switched on, so that the carrier 38 is pulled obliquely downwards by the connecting rod 38. The curve follower members 34 and 36 roll in the serpentine guide grooves 22 at the same time in exactly the same direction, so that the carrier 38 is guided without canting and the board 10 sucked in by the adhesive bodies 66 remains parallel, that is to say horizontal in the example shown.

Nach einer Drehung der Welle 48 um etwa 110° bis 120° ist der Träger 38 in die Stellung gemäß Fig. 4 gelangt, in welcher der in Fig. 3 bis 5 rechte Rand der Platine 10 zwischen die Förderglieder 68 und 70 eingedrungen ist und von diesen erfaßt wird. Nun geben die Haftkörper 66 die Platine 10 frei. Dies kann dadurch geschehen, daß ein vor­her an den Haftkörpern 66 anliegendes Vakuum aufgehoben oder sogar durch einen Luftstoß ersetzt wird. Wenn jedoch die Haftkörper 66 Elektromagneten sind, werden diese umge­polt.After rotation of the shaft 48 by approximately 110 ° to 120 °, the carrier 38 has reached the position according to FIG. 4, in which the right edge of the plate 10 in FIGS. 3 to 5 has penetrated between the conveying members 68 and 70 and from this is recorded. Now the adhesive bodies 66 release the circuit board 10. This can be done in that a vacuum previously applied to the adhesive bodies 66 is released or even replaced by an air blast. However, if the adhesive bodies 66 are electromagnets, these are reversed.

Währenddessen oder im Anschluß daran bewegt sich der Dreh­motor 50 weiter, bis sein Drehflügel 54 gegen den ein­stellbaren Anschlag 56 stößt. Dabei erreicht der Träger 38 seine in Fig. 5 abgebildete Endstellung. Sobald die Pla­tine 10 von den Fördergliedern 68 und 70 weiterbewegt worden ist und dadurch den Bewegungsraum des Trägers 38 freigemacht hat, wird die Bewegungsrichtung des Drehmotors 50 umgekehrt, so daß der Träger 38 in seine Ausgangsstel­lung gemäß Fig. 3 zurückkehrt.In the meantime or afterwards, the rotary motor 50 continues to move until its rotary vane 54 abuts against the adjustable stop 56. The carrier 38 reaches its end position shown in FIG. 5. As soon as the circuit board 10 has been moved further by the conveyor members 68 and 70 and has thereby cleared the movement space of the carrier 38, the direction of movement of the rotary motor 50 is reversed, so that the carrier 38 returns to its starting position according to FIG. 3.

Anstelle des abgebildeten Drehmotors 50 kann ein anderes Antriebsmittel für den Träger 38 vorgesehen sein, bei­spielsweise eine pneumatische Kolbenzylindereinheit.Instead of the rotary motor 50 shown, another drive means can be provided for the carrier 38, for example a pneumatic piston-cylinder unit.

Claims (7)

1. Vorrichtung zum Entstapeln und Weiterfördern von Plati­nen, insbes. Zuschnitten für Dosenzargen aus Blech, mit
- mindestens einem Haftkörper (66), der an eine in einem Stapel (12) freiliegende Platine anlegbar ist, um diese zu erfassen,
- mindestens einem Paar S-förmige Führungen, die je zwei quer zur Platinenebene verlaufende Abschnitte (24, 26; 26, 28) und je einen dazwischen angeordneten, ungefähr paral­lel zur Platinenebene verlaufenden Abschnitt (30; 32) aufweisen,
- einem Träger (38), der den Haftkörper (66) trägt und mindestens ein Paar Kurvenfolgeglieder (34, 36) aufweist, die jeweils in einander entsprechenden Abschnitten der beiden Führungen geführt sind, und
- Fördergliedern (68, 70), welche die vom Träger (38) her­angeförderte Platine (10) weiterfördern,
dadurch gekennzeichnet, daß die beiden Führungen zu einer schlangenlinienförmigen Führungskurve (22) zusammengefaßt sind, in welcher ein quer zur Plati­nenebene verlaufender Abschnitt (26) beiden Führungen gemeinsam ist und von beiden Kurvenfolgegliedern (34, 36) nacheinander durchfahren wird.1. Device for unstacking and conveying boards, esp. Cut for tin frames made of sheet metal, with
- at least one adhesive body (66) which can be placed on a circuit board exposed in a stack (12) in order to capture it,
at least one pair of S-shaped guides, each having two sections (24, 26; 26, 28) running transversely to the plane of the board and one section (30; 32) arranged between them and running approximately parallel to the plane of the board,
- A carrier (38) which carries the adhesive body (66) and has at least one pair of cam followers (34, 36), which are each guided in corresponding sections of the two guides, and
- conveying members (68, 70) which convey the board (10) conveyed up by the carrier (38),
characterized in that the two guides are combined to form a serpentine guide curve (22) in which a section (26) running transversely to the plane of the board is common to both guides and is traversed successively by both cam followers (34, 36). 2. Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet, daß
- der Träger (38) zwischen zwei Platten (20) angeordnet ist, an denen je eine Führungskurve (22) ausgebildet ist, und
- am Träger (38) zwei Paar Kurvenfolgeglieder (34, 36) derart angeordnet sind, daß der Träger (38) an beiden Füh­rungskurven (22) in gleicher Weise geführt ist.2. Device according to claim 1,
characterized in that
- The carrier (38) is arranged between two plates (20), on each of which a guide curve (22) is formed, and
- On the carrier (38) two pairs of cam followers (34, 36) are arranged such that the carrier (38) on both guide curves (22) is guided in the same way. 3. Vorrichtung nach Anspruch 1 oder 2,
dadurch gekennzeichnet, daß am Träger (38) ein Ende eines Pleuels (42) angelenkt ist, dessen anderes Ende mit einer Kurbel (46) gelenkig verbunden ist.3. Device according to claim 1 or 2,
characterized in that one end of a connecting rod (42) is articulated to the carrier (38), the other end of which is articulated to a crank (46). 4. Vorrichtung nach Anspruch 3,
dadurch gekennzeichnet, daß die Kurbel (46) von einem Drehmotor (50) in einem einstellbaren Win­kelbereich hin- und herdrehbar ist.4. The device according to claim 3,
characterized in that the crank (46) can be rotated back and forth by a rotary motor (50) in an adjustable angular range. 5. Vorrichtung nach Anspruch 3 oder 4
, dadurch gekennzeichnet, daß die Länge des Pleuels (42) einstellbar ist.5. Apparatus according to claim 3 or 4
, characterized in that the length of the connecting rod (42) is adjustable. 6. Vorrichtung nach Anspruch 5,
dadurch gekennzeichnet, dass die Kurbel (46) von einem Drehmotor (50) in einem einstellbaren Win­kelbereich hin- und herdrehbar ist.6. The device according to claim 5,
characterized in that the crank (46) can be rotated back and forth by a rotary motor (50) in an adjustable angular range. 7. Vorrichtung nach Anspruch 5 oder 6,
dadurch gekennzeichnet, dass die Länge des Pleuels (42) einstellbar ist.7. The device according to claim 5 or 6,
characterized in that the length of the connecting rod (42) is adjustable.
EP90111413A 1989-07-06 1990-06-18 Device for unstacking and conveying printed circuits Expired - Lifetime EP0406608B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2513/89A CH679219A5 (en) 1989-07-06 1989-07-06
CH2513/89 1989-07-06

Publications (2)

Publication Number Publication Date
EP0406608A1 true EP0406608A1 (en) 1991-01-09
EP0406608B1 EP0406608B1 (en) 1994-02-02

Family

ID=4235479

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90111413A Expired - Lifetime EP0406608B1 (en) 1989-07-06 1990-06-18 Device for unstacking and conveying printed circuits

Country Status (13)

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US (1) US5031892A (en)
EP (1) EP0406608B1 (en)
JP (1) JPH075196B2 (en)
KR (1) KR940003413B1 (en)
CN (1) CN1015161B (en)
BR (1) BR9003191A (en)
CA (1) CA2020284C (en)
CH (1) CH679219A5 (en)
CZ (1) CZ279106B6 (en)
DE (2) DE3929358C1 (en)
DK (1) DK169990B1 (en)
ES (1) ES2049863T3 (en)
RU (1) RU2004484C1 (en)

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Also Published As

Publication number Publication date
CZ279106B6 (en) 1994-12-15
US5031892A (en) 1991-07-16
DK164290A (en) 1991-01-07
CS9003279A2 (en) 1991-10-15
KR940003413B1 (en) 1994-04-22
CN1015161B (en) 1991-12-25
DE3929358C1 (en) 1990-10-25
JPH075196B2 (en) 1995-01-25
CN1048529A (en) 1991-01-16
CA2020284A1 (en) 1991-01-07
DK169990B1 (en) 1995-04-24
ES2049863T3 (en) 1994-05-01
DK164290D0 (en) 1990-07-06
JPH0342431A (en) 1991-02-22
BR9003191A (en) 1991-08-27
KR910002686A (en) 1991-02-26
EP0406608B1 (en) 1994-02-02
RU2004484C1 (en) 1993-12-15
CA2020284C (en) 1994-05-31
CH679219A5 (en) 1992-01-15
DE59004479D1 (en) 1994-03-17

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