EP0212298B1 - Work piece sorting system - Google Patents

Work piece sorting system Download PDF

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Publication number
EP0212298B1
EP0212298B1 EP86110073A EP86110073A EP0212298B1 EP 0212298 B1 EP0212298 B1 EP 0212298B1 EP 86110073 A EP86110073 A EP 86110073A EP 86110073 A EP86110073 A EP 86110073A EP 0212298 B1 EP0212298 B1 EP 0212298B1
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EP
European Patent Office
Prior art keywords
conveyor belt
installation according
workpieces
belt
processing machine
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Expired
Application number
EP86110073A
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German (de)
French (fr)
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EP0212298A3 (en
EP0212298A2 (en
Inventor
Wagner Maschinenfabrik Gmbh & Co. Kg Gustav
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Individual
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Individual
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/36—Sorting apparatus characterised by the means used for distribution
    • B07C5/361—Processing or control devices therefor, e.g. escort memory
    • B07C5/362—Separating or distributor mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C3/00—Sorting according to destination
    • B07C3/02—Apparatus characterised by the means used for distribution
    • B07C3/08—Apparatus characterised by the means used for distribution using arrangements of conveyors
    • B07C3/082—In which the objects are carried by transport holders and the transport holders form part of the conveyor belts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S209/00—Classifying, separating, and assorting solids
    • Y10S209/933—Accumulation receiving separated items

Definitions

  • the invention relates to a system for sorting from an automatic processing machine, e.g. a hacksaw, removed workpieces, e.g. Saw sections.
  • an automatic processing machine e.g. a hacksaw
  • removed workpieces e.g. Saw sections.
  • an endless conveyor belt according to US Pat. No. 2,998,889 could be used, on the one side of which there are provided several sliders which can be moved transversely across the conveyor belt and by means of which objects can either be pushed onto the conveyor belt or from the conveyor belt, wherein the driven deflection roller for the conveyor belt is assigned a pulse generator, by means of which the drive for the slide can be controlled.
  • the said pulse generator serves as a kind of distance measuring device.
  • this conveyor belt has not yet solved the problem of customer-specific sorting of objects or workpieces of different sizes.
  • the present invention is therefore based on the object of creating a system of the type mentioned at the outset, with which continuous, i.e. The workpieces delivered by a processing machine can be removed and sorted without interruption.
  • receptacles for workpieces of different lengths are set up on both sides of an endless conveyor belt, the receptacles being able to be suspended in compartments formed by displaceable partition walls. Accordingly, the compartments can be adapted to the dimensions of the receptacles, some of which are supplied by the customers, by simply moving the aforementioned partition walls.
  • Baffles are also attached to the upper ends of the dividing walls in order to safely guide the workpieces, in particular saw sections, thrown off the conveyor belt into the receptacles.
  • a support table 1 is attached to the discharge side of the saw machine (not shown), namely directly against the saw blade 2.
  • a gripper 3 is attached to the support table, which places the saw section 4 on the conveyor belt 5.
  • the conveyor belt 5 has a drive 6.
  • the conveyor belt 5 is a link hinge provided with a central hinge, the two sides of which can be tilted by means of tilting cylinders 7 and 8 acting on guides, whereby the saw sections along the arrows 7 'and 8' are thrown off the conveyor belt to the sides.
  • the drive 6 of the conveyor belt 5 is connected via a belt or a chain to a transmitter 9 for the transport route.
  • receptacles 10 to 17 are set up, which can have any dimensions, in particular can be receptacles supplied by customers.
  • Another receptacle 18 is provided under the end of the conveyor belt 5.
  • the sorted sawing sections 19 lie in the containers.
  • the receiving containers 10 to 17 are arranged in compartments which are formed by dividing walls 20 to 29 which can be displaced in the direction of transport of the strip in order to adapt the compartments to the dimensions of the respectively desired receiving containers.
  • Brackets 30 to 33 (FIG. 4), in which the receptacles are suspended, are attached to the partition walls.
  • Baffles 34 to 37 are attached to the upper ends of the dividing walls in order to safely guide the saw sections thrown off the conveyor belt into the receptacles. Furthermore, storage rails 38 with plastic supports 39 can be attached to the upper ends of the partitions in order to be able to store even longer rods, the length of which exceeds the width of the available receptacles, in a sorted manner.
  • a control device 40 is connected via a line 41 to the transmitter 9 and via lines 42 and 43 to the tilt cylinders 7 and 8.
  • the control device is fed with data 44 of the number, dimensions and determination of the workpieces 4 and 19 and the position and dimensions of the receptacles 10 to 17 of a batch of workpieces to be processed and processes the data into timed control commands for one of the tilt cylinders 7, 8 taking into account the distance of the transport of the workpieces on the conveyor belt 5 to be determined in each case by the sensor 9.
  • the sawing machine is equipped with a control system that registers the parts to be sawn according to the client, date, number, workpiece size, etc. In addition, the dimensions of the receptacles intended for the sawn lots and their locations along the conveyor belt are stored.
  • the control system processes processed data given signals to the transmitter 9, which then determines the distance to be covered for the conveyor belt with the workpieces of this lot.
  • a saw section carried away by the processing machine has passed this distance, it is thrown off the conveyor belt, whether by tipping the conveyor belt to a certain side or in another way, for example by means of a slide.
  • the distance to be covered by the saw section on the conveyor belt is determined taking into account the belt running speed in such a way that the saw section is positioned at the discharge point in a defined position relative to the receiving container, for example with its center on the center of the receiving container.
  • the saw sections must be fixed on the conveyor belt in such a way that they cannot move in the longitudinal direction, because otherwise the registered transport route to be covered does not match the actual transport route.
  • the trough-shaped design of the conveyor belt supports holding the saw section at the desired location on the conveyor belt.
  • the controller Since the controller also monitors the dimensions of the saw section and the receptacle, it is ensured that the saw section that is not too long is thrown into receptacles that are too narrow.
  • the system according to the invention makes it possible for the sections cut by the sawing machine to be continuously removed and sorted so that there is no jam in the sawing sections.
  • the control of the sawing machines can be designed in such a way that, taking into account the number and dimensions of the sawing sections and the dimensions of the receptacles, an optimal allocation takes place, whereby in individual cases a multiple assignment of receptacles can also be provided. Furthermore, the control can also optimize the transport routes taking into account the dimensions and weight of the saw sections.

Landscapes

  • Sorting Of Articles (AREA)
  • Discharge Of Articles From Conveyors (AREA)
  • Branching, Merging, And Special Transfer Between Conveyors (AREA)
  • Feeding Of Workpieces (AREA)

Description

Die Erfindung betrifft eine Anlage zum Sortieren von von einer automatischen Bearbeitungsmaschine, z.B. einer Metallsäge, abgeführten Werkstücken, z.B. Sägeabschnitten.The invention relates to a system for sorting from an automatic processing machine, e.g. a hacksaw, removed workpieces, e.g. Saw sections.

Zum sortierten Abführen von Sägeabschnitten von einer Metallsäge ist es bekannt, an der Abfuhrseite der Bearbeitungsmaschine einen auf Schienen geführten Wagen vorzusehen, der in vorgegebenen Abständen von der Bearbeitungsmaschine seinen Inhalt entleert. Nachteilig bei dieser Anlage ist, daß der Wagen für einen Abführvorgang eine Hin-und Herbewegung ausführen muß, also eine Leerfahrt hat.For the sorted removal of saw sections from a hacksaw, it is known to provide a carriage guided on rails on the discharge side of the processing machine, which trolley empties its contents at predetermined intervals. A disadvantage of this system is that the carriage has to move back and forth for a removal process, that is to say it has an empty run.

Statt des hin- und herverfahrbaren Wagens könnte ein endloses Transportband gemäß der US-A 2 998 889 verwendet werden, an dessen einer Seite mehrere quer über das Transportband bewegbare Schieber vorgesehen sind, mittels denen Gegenstände entweder auf das Transportband oder vom Transportband geschoben werden können, wobei der angetriebenen Umlenkwalze für das Transportband ein Pulsgenerator zugeordnet ist, mittels dem der Antrieb für die Schieber steuerbar ist. Der genannte Pulsgenerator dient als eine Art Streckenmeßeinrichtung. Mit diesem Transportband ist jedoch noch nicht das Problem einer kundenspezifischen Sortierung unterschiedlich großer Gegenstände bzw. Werkstücke gelöst.Instead of the carriage which can be moved back and forth, an endless conveyor belt according to US Pat. No. 2,998,889 could be used, on the one side of which there are provided several sliders which can be moved transversely across the conveyor belt and by means of which objects can either be pushed onto the conveyor belt or from the conveyor belt, wherein the driven deflection roller for the conveyor belt is assigned a pulse generator, by means of which the drive for the slide can be controlled. The said pulse generator serves as a kind of distance measuring device. However, this conveyor belt has not yet solved the problem of customer-specific sorting of objects or workpieces of different sizes.

Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, eine Anlage der eingangs genannten Art zu schaffen, mit welcher fortlaufend, d.h. ohne Unterbrechung, die von einer Bearbeitungsmaschine abgegebenen Werkstücke abgeführt und sortiert werden können.The present invention is therefore based on the object of creating a system of the type mentioned at the outset, with which continuous, i.e. The workpieces delivered by a processing machine can be removed and sorted without interruption.

Diese Aufgabe wird durch die Maßnahmen gemäß Patentanspruch 1 gelöst.This object is achieved by the measures according to claim 1.

Dementsprechend sind erfindungsgemäß an beiden Seiten eines endlosen Transportbandes Aufnahmebehälter für Werkstücke unterschiedlicher Länge aufgestellt, wobei die Aufnahmebehälter in durch verschiebbare Trennwände gebildete Abteile einhängbar sind. Dementsprechend können die Abteile den Abmessungen der zum Teil von den Kunden gelieferten Aufnahmebehältern angepaßt werden, und zwar durch einfaches Versetzen der genannten Trennwände.Accordingly, according to the invention, receptacles for workpieces of different lengths are set up on both sides of an endless conveyor belt, the receptacles being able to be suspended in compartments formed by displaceable partition walls. Accordingly, the compartments can be adapted to the dimensions of the receptacles, some of which are supplied by the customers, by simply moving the aforementioned partition walls.

An den oberen Enden der Trennwände sind noch Leitbleche angebracht, um die vom Transportband abgeworfenen Werkstücke, insbesondere Sägeabschnitte, sicher in die Aufnahmebehälter zu führen.Baffles are also attached to the upper ends of the dividing walls in order to safely guide the workpieces, in particular saw sections, thrown off the conveyor belt into the receptacles.

Bevorzugte konstruktive Details der erfindungsgemäßen Anlage sind in den Unteransprüchen beschrieben.Preferred structural details of the system according to the invention are described in the subclaims.

Nachstehend wird eine Ausführungsform der erfindungsgemäßen Anlage anhand der beigefügten Zeichnung näher erläutert. Es zeigen:

  • Fig. 1 eine Seitenansicht der erfindungsgemäßen Sortieranlage,
  • Fig. 2 eine Vorderansicht der Anlage,
  • Fig. 3 eine Draufsicht der Anlage,
  • Fig. 4 eine Vorderansicht der Abteilung von Aufnahmebehältern in größerem Maßstab, und
  • Fig. 5 eine Seitenansicht eines Abteils für einen Aufnahmebehälter.
An embodiment of the system according to the invention is explained in more detail below with reference to the accompanying drawing. Show it:
  • 1 is a side view of the sorting system according to the invention,
  • 2 is a front view of the system,
  • 3 is a plan view of the plant,
  • Fig. 4 is a front view of the department of receptacles on a larger scale, and
  • Fig. 5 is a side view of a compartment for a receptacle.

Gemäß Fig. 1 ist an der Abfuhrseite der (nicht dargestellten) Sägemaschine ein Auflagetisch 1 angebracht, und zwar unmittelbar anliegend an das Sägeblatt 2. An dem Auflagetisch ist ein Greifer 3 angebracht, der den Sägeabschnitt 4 auf das Transportband 5 legt. Das Transportband 5 weist einen Antrieb 6 auf. Das Transportband 5 ist ein mit einem Mittelscharnier versehenes Gliederband, dessen beide Seiten mittels auf Führungen wirkenden Kippzylindern 7 und 8 abgekippt werden können, womit die Sägeabschnitte längs der Pfeile 7' und 8' von dem Transportband nach den Seiten abgeworfen werden. Der Antrieb 6 des Transportbands 5 steht über einen Riemen oder eine Kette in Verbindung mit einem Meßwertgeber 9 für die Transportstrecke.According to FIG. 1, a support table 1 is attached to the discharge side of the saw machine (not shown), namely directly against the saw blade 2. A gripper 3 is attached to the support table, which places the saw section 4 on the conveyor belt 5. The conveyor belt 5 has a drive 6. The conveyor belt 5 is a link hinge provided with a central hinge, the two sides of which can be tilted by means of tilting cylinders 7 and 8 acting on guides, whereby the saw sections along the arrows 7 'and 8' are thrown off the conveyor belt to the sides. The drive 6 of the conveyor belt 5 is connected via a belt or a chain to a transmitter 9 for the transport route.

Beidseitig des Transportbands 5 sind Aufnahmebehälter 10 bis 17 aufgestellt, die beliebige Abmessungen aufweisen können, insbesondere von Kunden gelieferte Aufnahmebehälter sein können. Ein weiterer Aufnahmebehälter 18 ist unter dem Ende des Transportbands 5 vorgesehen. In den Behältern liegen die sortierten Sägeabschnitte 19. Die Aufnahmebehälter 10 bis 17 sind in Abteilen angeordnet, die durch Trennwände 20 bis 29 gebildet sind, die in Transportrichtung des Bandes verschiebbar sind, um die Abteile den Abmessungen der jeweils gewünschten Aufnahmebehälter anzupassen. An den Trennwänden sind Bügel 30 bis 33 (Fig. 4) angebracht, in welche die Aufnahmebehälter eingehängt werden. An den oberen Enden der Trennwände sind Leitbleche 34 bis 37 angebracht, um die von dem Transportband abgeworfenen Sägeabschnitte sicher in die Aufnahmebehälter zu führen. Des weiteren können an den oberen Enden der Trennwände Ablageschienen 38 mit Kunststoffauflagen 39 angebracht sein, um auch längere Stangen, deren Länge die Breite der verfügbaren Aufnahmebehälter übersteigt, sortiert ablegen zu können.On both sides of the conveyor belt 5, receptacles 10 to 17 are set up, which can have any dimensions, in particular can be receptacles supplied by customers. Another receptacle 18 is provided under the end of the conveyor belt 5. The sorted sawing sections 19 lie in the containers. The receiving containers 10 to 17 are arranged in compartments which are formed by dividing walls 20 to 29 which can be displaced in the direction of transport of the strip in order to adapt the compartments to the dimensions of the respectively desired receiving containers. Brackets 30 to 33 (FIG. 4), in which the receptacles are suspended, are attached to the partition walls. Baffles 34 to 37 are attached to the upper ends of the dividing walls in order to safely guide the saw sections thrown off the conveyor belt into the receptacles. Furthermore, storage rails 38 with plastic supports 39 can be attached to the upper ends of the partitions in order to be able to store even longer rods, the length of which exceeds the width of the available receptacles, in a sorted manner.

Eine Steuervorrichtung 40 ist über eine Leitung 41 mit dem Meßwertgeber 9 und über Leitungen 42 und 43 mit den Kippzylindern 7 und 8 verbunden. Die Steuervorrichtung wird mit Daten 44 der Zahl, Abmessungen und Bestimmung der Werkstücke 4 bzw. 19 und der Lage und Abmessungen der Aufnahmebehälter 10 bis 17 einer zu bearbeitenden Partie von Werkstücken gespeist und verarbeitet die Daten zu zeitlich abgestimmten Steuerbefehlen für jeweils einen der Kippzylinder 7, 8 unter Berücksichtigung der von dem Meßwertgeber 9 jeweils zu ermittelnden Strecke des Transports der Werkstücke auf dem Transportband 5.A control device 40 is connected via a line 41 to the transmitter 9 and via lines 42 and 43 to the tilt cylinders 7 and 8. The control device is fed with data 44 of the number, dimensions and determination of the workpieces 4 and 19 and the position and dimensions of the receptacles 10 to 17 of a batch of workpieces to be processed and processes the data into timed control commands for one of the tilt cylinders 7, 8 taking into account the distance of the transport of the workpieces on the conveyor belt 5 to be determined in each case by the sensor 9.

Die Arbeitsweise der erfindungsgemäßen Anlage ist wie folgt.The operation of the system according to the invention is as follows.

Die Sägemaschine ist mit einer Steuerung versehen, welche die zu sägenden Partien nach Auftraggeber, Termin, Zahl, Werkstückgröße etc. registriert. Darüber hinaus werden die Abmessungen der für die gesägten Partien vorgesehenen Aufnahmebehälter und ihre Standorte längs des Transportbands gespeichert. Beim Sägen einer bestimmten Partie werden aus den in der Steuerung verarbeiteten Daten Signale an den Meßwertgeber 9 gegeben, der daraufhin die für das Transportband mit den Werkstücken dieser Partie zurückzulegende Strecke festlegt. Wenn ein von der Bearbeitungsmaschine abgeführter Sägeabschnitt diese Strecke durchlaufen hat, wird er von dem Transportband abgeworfen, sei es durch Kippen des Transportbands nach einer bestimmten Seite oder auf andere Weise, beispielsweise mittels eines Schiebers abgeschoben. Dabei wird die von dem Sägeabschnitt auf dem Transportband zurückzulegende Strecke unter Berücksichtigung der Bandlaufgeschwindigkeit so festgelegt, daß der Sägeabschnitt an der Abwurfstelle in definierter Lage zum Aufnahmebehälter, z.B mit seiner Mitte auf die Mitte des Aufnahmebehälters positioniert ist.The sawing machine is equipped with a control system that registers the parts to be sawn according to the client, date, number, workpiece size, etc. In addition, the dimensions of the receptacles intended for the sawn lots and their locations along the conveyor belt are stored. When sawing a certain batch, the control system processes processed data given signals to the transmitter 9, which then determines the distance to be covered for the conveyor belt with the workpieces of this lot. When a saw section carried away by the processing machine has passed this distance, it is thrown off the conveyor belt, whether by tipping the conveyor belt to a certain side or in another way, for example by means of a slide. The distance to be covered by the saw section on the conveyor belt is determined taking into account the belt running speed in such a way that the saw section is positioned at the discharge point in a defined position relative to the receiving container, for example with its center on the center of the receiving container.

Die Sägeabschnitte müssen auf dem Transportband so festliegen, daß sie sich nicht in dessen Längsrichtung verschieben können, weil andernfalls die registrierte zurückzulegende Transportstrecke nicht mit der tatsächlichen Transportstrecke übereinstimmt. Die muldenförmige Ausbildung des Transportbands unterstützt das Halten des Sägeabschnitts an der gewünschten Stelle des Transportbands.The saw sections must be fixed on the conveyor belt in such a way that they cannot move in the longitudinal direction, because otherwise the registered transport route to be covered does not match the actual transport route. The trough-shaped design of the conveyor belt supports holding the saw section at the desired location on the conveyor belt.

Da die Steuerung auch die Abmessungen des Sägeabschnitts und der Aufnahmebehälter überwacht, wird sichergestellt, daß nicht zu lange Sägeabschnitt in zu schmale Aufnahmebehälter abgeworfen werden.Since the controller also monitors the dimensions of the saw section and the receptacle, it is ensured that the saw section that is not too long is thrown into receptacles that are too narrow.

Die erfindungsgemäße Anlage ermöglicht es, daß laufend die von der Sägemaschine geschnittenen Abschnitte abgeführt und sortiert abgeworfen werden, so daß kein Stau der Sägeabschnitte auftritt. Allerdings kann es auch erwünscht sein, mehrere gleiche Sägeabschnitte an einer bestimmten Stelle des Transportes ansammeln zu lassen und gemeinsam in enen Aufnahmebehälter abzuwerfen. Rest-und Schrottstücke können in dem am Ende des Transportbands angeordneten Aufnahmebehälter 18 abgeworfen werden.The system according to the invention makes it possible for the sections cut by the sawing machine to be continuously removed and sorted so that there is no jam in the sawing sections. However, it may also be desirable to have several identical saw sections accumulate at a specific point in the transport and to drop them together into a receptacle. Remnants and scrap pieces can be thrown away in the receptacle 18 arranged at the end of the conveyor belt.

Durch die Aufhängung der Aufnahmebehälter an den Trennwänden bleibt unter den Aufnahmebehältern ein freier Raum, so daß diese nach Beendigung des Sortiervorgangs mit einem Hubwagen abtransportiert werden können.Due to the suspension of the receptacles on the partition walls, a free space remains under the receptacles, so that they can be transported away with a pallet truck after the sorting process has ended.

Die Steuerung der Sägemaschinen kann so ausgelegt werden, daß unter Berücksichtigung der Zahl und Abmessungen der Sägeabschnitte und der Abmessungen der Aufnahmebehälter eine optimale Zuordnung erfolgt, wobei im Einzelfall auch eine Mehrfachbelegung von Aufnahmebehältern vorgesehen werden kann. Des weiteren kann die Steuerung auch die Transportstrecken unter Berücksichtigung von Abmessungen und Gewicht der Sägeabschnitte optimieren.The control of the sawing machines can be designed in such a way that, taking into account the number and dimensions of the sawing sections and the dimensions of the receptacles, an optimal allocation takes place, whereby in individual cases a multiple assignment of receptacles can also be provided. Furthermore, the control can also optimize the transport routes taking into account the dimensions and weight of the saw sections.

Claims (7)

1. Installation for sorting workpieces, e.g. sawn, sections transported away from an automatic processing machine, e.g. a metal-cutting saw, having an endless conveyor belt (5) which is arranged at the removal side of the processing machine and at both sides of which receiving containers (10-17) for the workpieces are set up at pre-determined distances from the processing machine, having a distance measuring device (9) in operative connection with the drive (6) of the conveyor belt, and having the compartments which are formed by displaceable partition walls (20-29) and in which the receiving containers (10-17) can be suspended, baffle plates (34-37) being fitted at the upper ends of the partition walls (20-29).
2. Installation according to Claim 1, characterized in that the conveyor belt (5) is a jointed-belt conveyor which can be tipped to both sides.
3. Installation according to Claim 2, characterized in that the jointed-belt conveyor has a hinge in the middle.
4. Installation according to one of Claims 1 to 3, characterized in that the conveyor belt (5) is of troughshaped design.
5. Installation according to one of Claims 1 to 4, characterized in that each side of the conveyor belt (5) is in operative connection with a tilting cylinder (7, 8).
6. Installation according to one of Claims 1 to 5, characterized in that deposition rails (38) are fitted at the upper ends of the partition walls (20-29).
7. Installation according to one of Claims 1 to 6, characterized by a device (40) for controlling the apparatuses (7, 8) for throwing the workpieces from the conveyor belt, the device being fed with data relating to the workpieces (4, 19) and the receiving containers (10-17).
EP86110073A 1985-08-14 1986-07-22 Work piece sorting system Expired EP0212298B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853529149 DE3529149A1 (en) 1985-08-14 1985-08-14 PLANT FOR SORTING WORKPIECES
DE3529149 1985-08-14

Publications (3)

Publication Number Publication Date
EP0212298A2 EP0212298A2 (en) 1987-03-04
EP0212298A3 EP0212298A3 (en) 1988-01-07
EP0212298B1 true EP0212298B1 (en) 1989-10-25

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US (1) US4878574A (en)
EP (1) EP0212298B1 (en)
JP (1) JPS6294241A (en)
DE (2) DE3529149A1 (en)

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Also Published As

Publication number Publication date
DE3529149A1 (en) 1987-02-26
EP0212298A3 (en) 1988-01-07
DE3666571D1 (en) 1989-11-30
JPS6294241A (en) 1987-04-30
EP0212298A2 (en) 1987-03-04
US4878574A (en) 1989-11-07

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