EP0790203B1 - Device for separating flat piled articles - Google Patents

Device for separating flat piled articles Download PDF

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Publication number
EP0790203B1
EP0790203B1 EP96120471A EP96120471A EP0790203B1 EP 0790203 B1 EP0790203 B1 EP 0790203B1 EP 96120471 A EP96120471 A EP 96120471A EP 96120471 A EP96120471 A EP 96120471A EP 0790203 B1 EP0790203 B1 EP 0790203B1
Authority
EP
European Patent Office
Prior art keywords
stack
prongs
shaft
carrying
stack cassette
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
EP96120471A
Other languages
German (de)
French (fr)
Other versions
EP0790203A3 (en
EP0790203A2 (en
Inventor
Fritz Achelpohl
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.)
Windmoeller and Hoelscher KG
Original Assignee
Windmoeller and Hoelscher KG
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Filing date
Publication date
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Publication of EP0790203A2 publication Critical patent/EP0790203A2/en
Publication of EP0790203A3 publication Critical patent/EP0790203A3/en
Application granted granted Critical
Publication of EP0790203B1 publication Critical patent/EP0790203B1/en
Anticipated expiration legal-status Critical
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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
    • B65H3/42—Separating articles from piles by two or more separators mounted for movement with, or relative to, rotary or oscillating bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H1/00—Supports or magazines for piles from which articles are to be separated
    • B65H1/30—Supports or magazines for piles from which articles are to be separated with means for replenishing the pile during continuous separation of articles therefrom
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/30—Suction means
    • B65H2406/33—Rotary suction means, e.g. roller, cylinder or drum
    • B65H2406/331—Rotary suction means, e.g. roller, cylinder or drum arranged for rotating while moving along material to be handled, e.g. rolling on material
    • B65H2406/3312—Rotary suction means, e.g. roller, cylinder or drum arranged for rotating while moving along material to be handled, e.g. rolling on material arranged for planetary movement on rotary support means

Definitions

  • the invention relates to a device for separating stacked flat workpieces according to the preamble of claim 1.
  • the stack-receiving stacking cassette is located above the envelope cylinder described by the suction rollers, the stack to be separated being located on the suction rollers and additional support rollers arranged between the suction rollers and having the same envelope cylinder as describe the suction rolls, support them.
  • This type of support is necessary in the known rotary feeder so that a lower exposed workpiece can be pulled off the stack from each suction roll.
  • Rotary feeders are connected upstream of the sack making floor laying machines. Modern floor-laying machines have a high output, so that the rotary feeders also have to be operated at a higher speed in order to feed the individual hose pieces to the floor-laying machine with a correspondingly increased number of cycles. At higher speeds, however, the stack supported on the suction and back-up rolls of the rotary feeder vibrates so strongly that it is no longer guaranteed that the suction rows of each suction roll suck the lowest hose section safely at its front edge area, so that there is no separation or the piece of hose to be separated is only incompletely and possibly pulled off in an inclined position.
  • DE-PS 390 443 a device of the type specified is known which avoids the disadvantage of the device known from DE-PS 12 77 655 in that the stacking cassette is arranged below the supporting structure, so that each row of suction cups has the top exposed one Sucks the workpiece of the stack to separate it.
  • DE-PS-390 443 contains no information about the creation of the stacks to be separated.
  • the object of the invention is therefore to provide a device according to the preamble of claim 1, which enables the continuous separation of continuously added stacks of flat workpieces.
  • the device according to the invention makes it possible to place a new stack to be separated on the respective lower tines of the pair of tines.
  • This stack is then raised until it is in abutment with the upper stack in the singulation.
  • the tines supporting the upper stack are moved out of the shaft and lowered and retracted into the shaft so that they are ready to receive the next stack.
  • the guides carrying the rust-like tines and their drives are expediently arranged on the vertical runs of endless and reversibly driven traction means.
  • the stack-aligning vertical sheets are arranged, of which at least two opposite one another are provided with a drive which vibrates them.
  • the vibrating metal sheets align the individual workpieces of the stack in a straight line so that the respective upper workpiece can be sucked in the correct position by the continuous suction roll.
  • the rotary feeder 1 shown in FIG. 1 consists of a support star 3 rotatably mounted in a machine frame, not shown, about the axis 2 and provided with a rotary drive, not shown, for example consisting of side disks of a web-like support frame, on which eight intermediate wheels 4 are freely rotatably mounted which, on the one hand, mesh with a central wheel 5 fixed to the frame and, on the other hand, with gears 6, which mesh on the shafts of the suction rollers 7, which are freely rotatably mounted in the supporting star 3.
  • Each of the suction rolls 7 is Provided along the generatrices with a number of suction cups 8.
  • the rotary feeder corresponds to the rotary feeder known from DE-PS 12 77 655, to which reference is made for further illustration.
  • a stacking cassette 10 for receiving the stacks 11 to be separated is arranged in the machine frame below the rotary feeder.
  • the stacking cassette 10 consists of a stacking shaft, on the sides of which endless traction means are arranged around deflection rollers and driven rollers, on the strands 12, 12 'and 13, 13' facing the stacking shaft, guides 14, 14 'and 15, 15' for the Stacking shaft retractable and extendable rust-like tines 16, 16 'and 17, 17' are held.
  • the rust-like tines are provided with drives, not shown, on the basis of which they can be moved into the stacking shaft 10 in the direction of the double arrows A and can be moved out of the latter.
  • the dreams of the endless conveying means carrying the guides are reversibly drivable in the direction of the double arrows B, so that the upper stack 11 is raised in accordance with the decrease in the stack height as a result of the separation and the lower stack 11 is placed against the upper stack and the upper rust-like tines downward can be moved to accommodate a new batch to be created.
  • lateral vertical plates 20, 21 are arranged, which are set in vibration in the direction of the double arrows C by vibration drives, not shown, so that the ascending stack 11 are aligned straight.
  • the support star 3 rotates in the direction of arrow D, while the individual suction rolls are driven in the direction of arrow E.
  • the geometrical relationships are so coordinated that the rows of suction cups rotating on cycloids in their reversal points, at which they have approximately zero speed, suck in the workpieces to be separated in the region of their front edges, as is indicated in FIG. 3.
  • the workpieces separated by the rotary feeder are transferred by the rotary feeder to the further conveyor 24.
  • This consists of a shaft 25 mounted in the machine frame, not shown, which has two suction bores 26, 27 is provided, which are connected to a vacuum source via a rotary feedthrough, not shown.
  • rows of suction cups 28, 29 are placed offset from one another by 180 °, the tubes carrying the suction cups being connected to the suction bores 26, 27.
  • the shaft 25 is driven via a belt 30 by a servo motor 31 whose speed can be controlled.
  • Pulleys 32 are freely rotatably mounted on the shaft 25, over which the endless belts 33 of the upper part of a double belt conveyor run, which interact with the belts 34 of the lower part of the double belt conveyor.
  • the servo motor 31 controls the shaft 25 in such a way that the suction rows 28, 29 remove the individual workpieces from the suction rolls 7 of the rotary feeder 1 at times in which the suction rows 8 in the reversal points of the cycloid on which they revolve, just about that Have zero speed. In this way, the workpieces can be removed from the suction rolls at approximately zero speed, so that a bumpless transfer is guaranteed.
  • the servo motor 31 accelerates the shaft 25 from standstill to the rotational speed of the double conveyor belt, so that the workpieces can be taken along in the correct position and without acceleration by the double belt conveyor.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Advancing Webs (AREA)
  • Combined Means For Separation Of Solids (AREA)

Abstract

The separating device consists of a carrier star (3) with drive. In which rolls (7) are set in a circle round the turning axis (2). Their drive gears (6) are driven from a central gear (5) via intermediate gears (4). The central gear rotates the opposite way to the carrier star. Each roll has a row of suckers (8), so that the rows form a shell cylinder, against which the stack cassette (10) is placed so that each row of each roll pulls out one workpiece to be taken onto a conveyor belt. The stack cassette locks the stack completely to prevent it vibrating.

Description

Die Erfindung betrifft eine Vorrichtung zum Vereinzeln gestapelter flacher Werkstücke nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a device for separating stacked flat workpieces according to the preamble of claim 1.

Aus einem aus der DE-PS 12 77 655 bekannten sog. Rotationsanleger befindet sich die die Stapel aufnehmende Stapelkassette oberhalb des von den Saugwalzen beschriebenen Hüllzylinders, wobei sich der zu vereinzelnde Stapel auf den Saugwalzen und zusätzlichen zwischen den Saugwalzen angeordneten Stützwalzen, die denselben Hüllzylinder wie die Saugwalzen beschreiben, abstützen. Diese Art der Abstützung ist bei dem bekannten Rotationsanleger notwendig, damit von jeder Saugwalze von dem Stapel ein unteres freiliegendes Werkstück abgezogen werden kann.From a so-called rotary feeder known from DE-PS 12 77 655, the stack-receiving stacking cassette is located above the envelope cylinder described by the suction rollers, the stack to be separated being located on the suction rollers and additional support rollers arranged between the suction rollers and having the same envelope cylinder as describe the suction rolls, support them. This type of support is necessary in the known rotary feeder so that a lower exposed workpiece can be pulled off the stack from each suction roll.

Da jedoch der auf den Saugwalzen und Stützwalzen abgestützte Stapel von diesen bei deren Durchlauf Schläge erhält, regen diese zwangsläufig Schwingungen des Stapels an. Rotationsanleger werden bei der Sackherstellung Bodenlegermaschinen vorgeschaltet. Moderne Bodenlegermaschinen haben eine hohe Leistung, so daß die Rotationsanleger auch mit höherer Drehzahl betrieben werden müssen, um der Bodenlegermaschine die vereinzelten Schlauchstücke mit entsprechend erhöhter Taktzahl zuzuführen. Bei höheren Geschwindigkeiten gerät der sich auf den Saug- und Stützwalzen des Rotationsanlegers abgestützte Stapel jedoch in so starke Schwingungen, daß nicht mehr gewährleistet ist, daß die Saugerreihen jeder Saugwalze das unterste Schlauchstück sicher an dessen vorderem Randbereich ansaugen, so daß es zu keiner Vereinzelung kommt oder das zu vereinzelnde Schlauchstück nur unvollständig und möglicherweise in einer Schräglage abgezogen wird.However, since the stack supported on the suction rolls and back-up rolls receives impacts from them during their passage, these inevitably stimulate vibrations of the stack. Rotary feeders are connected upstream of the sack making floor laying machines. Modern floor-laying machines have a high output, so that the rotary feeders also have to be operated at a higher speed in order to feed the individual hose pieces to the floor-laying machine with a correspondingly increased number of cycles. At higher speeds, however, the stack supported on the suction and back-up rolls of the rotary feeder vibrates so strongly that it is no longer guaranteed that the suction rows of each suction roll suck the lowest hose section safely at its front edge area, so that there is no separation or the piece of hose to be separated is only incompletely and possibly pulled off in an inclined position.

Aus der DE-PS 390 443 ist eine Vorrichtung der eingangs angegebenen Art bekannt, die den Nachteil der aus der DE-PS 12 77 655 bekannten Vorrichtung dadurch vermeidet, daß die Stapelkassette unterhalb des Traggerüsts angeordnet ist, so daß jede Saugerreihe jeweils das oberste freiliegende Werkstück des Stapels zu seiner Vereinzelung ansaugt. Die DE-PS-390 443 enthält jedoch keine Information über das Anlegen der zu vereinzelnden Stapel.From DE-PS 390 443 a device of the type specified is known which avoids the disadvantage of the device known from DE-PS 12 77 655 in that the stacking cassette is arranged below the supporting structure, so that each row of suction cups has the top exposed one Sucks the workpiece of the stack to separate it. However, DE-PS-390 443 contains no information about the creation of the stacks to be separated.

Aufgabe der Erfindung ist es daher, eine Vorrichtung nach dem Oberbegriff des Patentanspruchs 1 zu schaffen, die die kontinuierliche Vereinzelung ständig nachgelegter Stapel aus flachen Werkstücken ermöglicht.The object of the invention is therefore to provide a device according to the preamble of claim 1, which enables the continuous separation of continuously added stacks of flat workpieces.

Erfindungsgemäß wird diese Aufgabe durch die Merkmale des Patentanspruchs 1 gelöst.According to the invention, this object is achieved by the features of patent claim 1.

Die erfindungsgemäße Vorrichtung ermöglicht es, auf die jeweils unteren Zinken des Zinkenpaares einen neuen zu vereinzelnden Stapel aufzulegen.The device according to the invention makes it possible to place a new stack to be separated on the respective lower tines of the pair of tines.

Dieser Stapel wird sodann angehoben, bis er sich in Anlage an dem oberen, in der Vereinzelung befindlichen Stapel befindet. Nach dieser Anlage werden die den oberen Stapel stützenden Zinken aus dem Schacht herausgefahren und nach unten abgesenkt und in diesen wieder eingefahren, so daß sie zur Aufnahme des nächsten Stapels bereitstehen.This stack is then raised until it is in abutment with the upper stack in the singulation. According to this system, the tines supporting the upper stack are moved out of the shaft and lowered and retracted into the shaft so that they are ready to receive the next stack.

Zweckmäßigerweise sind die die rostartigen Zinken tragenden Führungen und deren Antriebe an den vertikalen Trumen endloser und reversierend angetriebener Zugmittel angeordnet.The guides carrying the rust-like tines and their drives are expediently arranged on the vertical runs of endless and reversibly driven traction means.

Nach einer weiteren bevorzugten Ausführungsform ist vorgesehen, daß an der Mündung des Schachts den Stapel ausrichtende vertikale Bleche angeordnet sind, von denen mindestens zwei einander gegenüberliegende mit einem diese in Vibration versetzenden Antrieb versehen sind. Durch die vibrierenden Bleche werden die einzelnen Werkstücke des Stapels kantengerade ausgerichtet, so daß das jeweils obere Werkstück lagerichtig von der durchlaufenden Saugwalze angesaugt werden kann.According to a further preferred embodiment, it is provided that at the mouth of the shaft the stack-aligning vertical sheets are arranged, of which at least two opposite one another are provided with a drive which vibrates them. The vibrating metal sheets align the individual workpieces of the stack in a straight line so that the respective upper workpiece can be sucked in the correct position by the continuous suction roll.

Ein Ausführungsbeispiel der Erfindung wird nachstehend anhand der Zeichnung näher erläutert. In dieser zeigt

Fig. 1
eine Seitenansicht des erfindungsgemäßen Rotationsanlegers mit einer Stapelkassette und einer die vereinzelten Werkstücke abfördernden Fördereinrichtung in schematischer Darstellung,
Fig. 2
einen Schnitt durch die rotierenden, die vereinzelten Werkstücke von dem Rotationsanleger abnehmenden Saugerreihen und
Fig. 3
eine vergrößerte Darstellung der Stapelkassette nach Fig. 1.
An embodiment of the invention is explained below with reference to the drawing. In this shows
Fig. 1
2 shows a side view of the rotary feeder according to the invention with a stacking cassette and a conveyor device that conveys the individual workpieces,
Fig. 2
a section through the rotating, the separated workpieces from the rotary feeder rows of suction cups and
Fig. 3
an enlarged view of the stacking cassette of FIG. 1st

Der aus Fig. 1 ersichtliche Rotationsanleger 1 besteht aus einem in einem nicht dargestellten Maschinengestell um die Achse 2 drehbar gelagerten und mit einem nicht dargestellten Drehantrieb versehenen, beispielsweise aus seitlichen Scheiben eines stegartigen Traggerüsts bestehenden Tragstern 3, an dem acht Zwischenräder 4 frei drehbar gelagert sind, die einerseits mit einem gestellfesten Zentralrad 5 und andererseits mit Zahnrädern 6 kämmen, die auf den Wellen der in dem Tragstern 3 frei drehbar gelagerten Saugwalzen 7 kämmen. Jede der Saugwalzen 7 ist längs Mantellinien mit einer Reihe von Saugern 8 versehen. Insoweit entspricht der Rotationsanleger dem aus der DE-PS 12 77 655 bekannten Rotationsanleger, auf die zur weiteren Darstellung Bezug genommen wird.The rotary feeder 1 shown in FIG. 1 consists of a support star 3 rotatably mounted in a machine frame, not shown, about the axis 2 and provided with a rotary drive, not shown, for example consisting of side disks of a web-like support frame, on which eight intermediate wheels 4 are freely rotatably mounted which, on the one hand, mesh with a central wheel 5 fixed to the frame and, on the other hand, with gears 6, which mesh on the shafts of the suction rollers 7, which are freely rotatably mounted in the supporting star 3. Each of the suction rolls 7 is Provided along the generatrices with a number of suction cups 8. To this extent, the rotary feeder corresponds to the rotary feeder known from DE-PS 12 77 655, to which reference is made for further illustration.

Unterhalb des Rotationsanlegers ist in dem Maschinengestell eine Stapelkassette 10 zur Aufnahme der zu vereinzelnden Stapel 11 angeordnet. Die Stapelkassette 10 besteht aus einem Stapelschacht, an dessen Seiten um Umlenkrollen und angetriebene Rollen umlaufende endlose Zugmittel angeordnet sind, an deren dem Stapelschacht zugewandten Trumen 12, 12'und 13, 13' Führungen 14, 14'und 15, 15' für an den Stapelschacht einfahrbare und ausfahrbare rostartige Zinken 16, 16' und 17, 17' gehaltert sind. Die rostartigen Zinken sind mit nicht dargestellten Antrieben versehen, aufgrund derer sie in Richtung der Doppelpfeile A in den Stapelschacht 10 eingefahren und aus diesem herausgefahren werden können. Die die Führungen tragenden Trume der endlosen Fördermittel sind in Richtung der Doppelpfeile B reversierend antreibbar, so daß der obere Stapel 11 entsprechend der Abnahme der Stapelhöhe in Folge der Vereinzelung angehoben und der untere Stapel 11 an den oberen Stapel angelegt und die oberen rostartigen Zinken nach unten zur Aufnahme eines neuen anzulegenden Stapels verfahren werden können.A stacking cassette 10 for receiving the stacks 11 to be separated is arranged in the machine frame below the rotary feeder. The stacking cassette 10 consists of a stacking shaft, on the sides of which endless traction means are arranged around deflection rollers and driven rollers, on the strands 12, 12 'and 13, 13' facing the stacking shaft, guides 14, 14 'and 15, 15' for the Stacking shaft retractable and extendable rust-like tines 16, 16 'and 17, 17' are held. The rust-like tines are provided with drives, not shown, on the basis of which they can be moved into the stacking shaft 10 in the direction of the double arrows A and can be moved out of the latter. The dreams of the endless conveying means carrying the guides are reversibly drivable in the direction of the double arrows B, so that the upper stack 11 is raised in accordance with the decrease in the stack height as a result of the separation and the lower stack 11 is placed against the upper stack and the upper rust-like tines downward can be moved to accommodate a new batch to be created.

An der oberen Mündung des Schachts 10 sind seitliche vertikale Bleche 20, 21 angeordnet, die durch nicht dargestellte Vibrationsantriebe in Richtung der Doppelpfeile C in Vibration versetzt werden, so daß die aufsteigenden Stapel 11 kantengerade ausgerichtet werden. Der Tragstern 3 läuft in Richtung des Pfeils D um, während die einzelnen Saugwalzen in Richtung des Pfeils E angetrieben sind. Dabei sind die geometrischen Verhältnisse so aufeinander abgestimmt, daß die auf Zykloiden rotierenden Saugerreihen in ihren Umkehrpunkten, in denen sie etwa die Geschwindigkeit Null haben, die zu vereinzelnden Werkstücke im Bereich ihrer Vorderkanten ansaugen, wie dies in Fig. 3 angedeutet ist.At the upper mouth of the shaft 10 lateral vertical plates 20, 21 are arranged, which are set in vibration in the direction of the double arrows C by vibration drives, not shown, so that the ascending stack 11 are aligned straight. The support star 3 rotates in the direction of arrow D, while the individual suction rolls are driven in the direction of arrow E. The geometrical relationships are so coordinated that the rows of suction cups rotating on cycloids in their reversal points, at which they have approximately zero speed, suck in the workpieces to be separated in the region of their front edges, as is indicated in FIG. 3.

Die von dem Rotationsanleger vereinzelten Werkstücke werden von diesem an den weiterfördernden Förderer 24 übergeben. Dieser besteht aus einer im nicht dargestellten Maschinengestell gelagerten Welle 25, die mit zwei Saugbohrungen 26, 27 versehen ist, die über eine nicht dargestellte Drehdurchführung mit einer Vakuumquelle in Verbindung stehen. Auf die Welle 25 sind um 180ÿ versetzt zueinander Reihen von Saugern 28, 29 aufgesetzt, deren die Saugnäpfe tragenden Rohre mit den Saugbohrungen 26, 27 in Verbindung stehen. Die Welle 25 ist über einen Riemen 30 von einem in seiner Geschwindigkeit steuerbaren Servomotor 31 angetrieben. Auf die Welle 25 sind frei drehbar Riemenscheiben 32 aufgesetzt, über die die endlosen Riemen 33 des oberen Teils eines Doppelbandförderers laufen, die mit den Riemen 34 des unteren Teils des Doppelbandförderers zusammenwirken.The workpieces separated by the rotary feeder are transferred by the rotary feeder to the further conveyor 24. This consists of a shaft 25 mounted in the machine frame, not shown, which has two suction bores 26, 27 is provided, which are connected to a vacuum source via a rotary feedthrough, not shown. On the shaft 25, rows of suction cups 28, 29 are placed offset from one another by 180 °, the tubes carrying the suction cups being connected to the suction bores 26, 27. The shaft 25 is driven via a belt 30 by a servo motor 31 whose speed can be controlled. Pulleys 32 are freely rotatably mounted on the shaft 25, over which the endless belts 33 of the upper part of a double belt conveyor run, which interact with the belts 34 of the lower part of the double belt conveyor.

Der Servomotor 31 steuert die Welle 25 in der Weise, daß die Saugerreihen 28, 29 von den Saugwalzen 7 des Rotationsanlegers 1 die vereinzelten Werkstücke zu Zeitpunkten abnehmen, in denen die Saugerreihen 8 in den Umkehrpunkten der Zykloide, auf der sie umlaufen, etwa gerade die Geschwindigkeit Null haben. Auf diese Weise können die Werkstücke von den Saugwalzen etwa bei der Geschwindigkeit Null abgenommen werden, so daß eine stoßfrei Übergabe gewährleistet ist.The servo motor 31 controls the shaft 25 in such a way that the suction rows 28, 29 remove the individual workpieces from the suction rolls 7 of the rotary feeder 1 at times in which the suction rows 8 in the reversal points of the cycloid on which they revolve, just about that Have zero speed. In this way, the workpieces can be removed from the suction rolls at approximately zero speed, so that a bumpless transfer is guaranteed.

Nach der Abnahme der Werkstücke durch die Saugerreihen 28, 29 beschleunigt der Servomotor 31 die Welle 25 aus dem Stillstand auf die Umlaufgeschwindigkeit des Doppelförderbandes, so daß die Werkstücke von dem Doppelbandförderer lagerichtig und beschleunigungsfrei mitgenommen werden können.After removal of the workpieces by the suction rows 28, 29, the servo motor 31 accelerates the shaft 25 from standstill to the rotational speed of the double conveyor belt, so that the workpieces can be taken along in the correct position and without acceleration by the double belt conveyor.

Claims (3)

  1. Device for the individual separation of stacked flat workpieces, consisting of a web-like carrying skeleton (3) which is rotatably mounted in a stand and is provided with a drive and in which rollers (7), each provided with a row of suckers (8), are rotatably mounted at equal angular intervals on a circular line concentric to the axis of rotation of the said carrying skeleton, the driving gearwheels (6) of the said rollers being driven, via intermediate wheels (4) mounted in the carrying skeleton (3), by a central wheel (5) fixed to the stand and having a direction of rotation opposite to the direction of rotation of the carrying skeleton (3), of a stack cassette (10) which is arranged below the carrying skeleton (3) and which is placed against the enveloping cylinder described by the sucker rows, in such a way that each sucker row draws an exposed workpiece out of the said stack cassette, and of a conveying means (24) which is thrown onto the enveloping cylinder, takes off the individually separated workpieces and conveys them further, the stack cassette (10) holding the stack to be individually separated, characterized in that the stack cassette (10) consists of a vertical shaft, into which project from opposite sides two pairs of grate-like prongs, of which the prongs of each pair lie in the same horizontal plane and can be raised and lowered so as to pass through one another and can be moved out of and into the shaft.
  2. Device according to Claim 1, characterized in that the guides (14, 14', 15, 15') carrying the grate-like prongs (16, 16', 17, 17') and the drives of the said prongs are arranged on the vertical stands (12, 12', 13, 13') of endless reversibly driven traction means.
  3. Device according to Claim 1 or 2, characterized in that there are arranged at the mouth of the shaft (10) vertical plates (20, 21) which align the stacks (11) and of which at least two which are located opposite one another are provided with a drive setting these in vibration.
EP96120471A 1996-02-14 1996-12-19 Device for separating flat piled articles Expired - Lifetime EP0790203B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19605461 1996-02-14
DE19605461A DE19605461C2 (en) 1996-02-14 1996-02-14 Device for separating stacked flat workpieces

Publications (3)

Publication Number Publication Date
EP0790203A2 EP0790203A2 (en) 1997-08-20
EP0790203A3 EP0790203A3 (en) 1998-01-07
EP0790203B1 true EP0790203B1 (en) 2000-04-05

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EP96120471A Expired - Lifetime EP0790203B1 (en) 1996-02-14 1996-12-19 Device for separating flat piled articles

Country Status (10)

Country Link
US (1) US5857829A (en)
EP (1) EP0790203B1 (en)
JP (1) JPH09226958A (en)
CN (1) CN1079362C (en)
AT (1) ATE191424T1 (en)
BR (1) BR9700951A (en)
CZ (1) CZ5997A3 (en)
DE (2) DE19605461C2 (en)
ES (1) ES2144197T3 (en)
TW (1) TW330190B (en)

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CH692617A5 (en) 1998-02-27 2002-08-30 Ferag Ag Apparatus for processing flexible, sheet-like products.
AU755468B2 (en) 1998-06-15 2002-12-12 Ferag Ag Apparatus for processing flexible, sheet-like products
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US5857829A (en) 1999-01-12
JPH09226958A (en) 1997-09-02
CN1079362C (en) 2002-02-20
ES2144197T3 (en) 2000-06-01
DE19605461A1 (en) 1997-08-21
EP0790203A3 (en) 1998-01-07
CZ5997A3 (en) 1997-12-17
CN1165107A (en) 1997-11-19
DE59604886D1 (en) 2000-05-11
BR9700951A (en) 1998-09-01
EP0790203A2 (en) 1997-08-20
ATE191424T1 (en) 2000-04-15
DE19605461C2 (en) 1999-06-02
TW330190B (en) 1998-04-21

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