EP0240691B1 - Method for turning a continuous stream of paper sheets into packets - Google Patents

Method for turning a continuous stream of paper sheets into packets Download PDF

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Publication number
EP0240691B1
EP0240691B1 EP87102755A EP87102755A EP0240691B1 EP 0240691 B1 EP0240691 B1 EP 0240691B1 EP 87102755 A EP87102755 A EP 87102755A EP 87102755 A EP87102755 A EP 87102755A EP 0240691 B1 EP0240691 B1 EP 0240691B1
Authority
EP
European Patent Office
Prior art keywords
line
sheets
travel
paper
conveyance
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
EP87102755A
Other languages
German (de)
French (fr)
Other versions
EP0240691A1 (en
Inventor
Roland Grunder
Albert Eugster
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.)
Grapha Holding AG
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Grapha Holding AG
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Filing date
Publication date
Application filed by Grapha Holding AG filed Critical Grapha Holding AG
Priority to AT87102755T priority Critical patent/ATE49181T1/en
Publication of EP0240691A1 publication Critical patent/EP0240691A1/en
Application granted granted Critical
Publication of EP0240691B1 publication Critical patent/EP0240691B1/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
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/38—Delivering or advancing articles from machines; Advancing articles to or into piles by movable piling or advancing arms, frames, plates, or like members with which the articles are maintained in face contact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H15/00—Overturning articles
    • B65H15/008—Overturning articles employing belts
    • B65H15/012—Overturning articles employing belts twisted belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H33/00—Forming counted batches in delivery pile or stream of articles
    • B65H33/02—Forming counted batches in delivery pile or stream of articles by moving a blade or like member into the 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
    • B65H37/00—Article or web delivery apparatus incorporating devices for performing specified auxiliary operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/30—Orientation, displacement, position of the handled material
    • B65H2301/32—Orientation of handled material
    • B65H2301/321—Standing on edge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/30—Orientation, displacement, position of the handled material
    • B65H2301/33—Modifying, selecting, changing orientation
    • B65H2301/332—Turning, overturning
    • B65H2301/3321—Turning, overturning kinetic therefor
    • B65H2301/33212—Turning, overturning kinetic therefor about an axis parallel to the direction of displacement of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/42—Piling, depiling, handling piles
    • B65H2301/421—Forming a pile
    • B65H2301/4214—Forming a pile of articles on edge
    • B65H2301/42146—Forming a pile of articles on edge by introducing articles from above
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/44—Moving, forwarding, guiding material
    • B65H2301/442—Moving, forwarding, guiding material by acting on edge of handled material
    • B65H2301/4422—Moving, forwarding, guiding material by acting on edge of handled material with guide member moving in the material direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/30—Chains
    • B65H2404/31—Chains with auxiliary handling means
    • B65H2404/311—Blades, lugs, plates, paddles, fingers
    • B65H2404/3111—Blades, lugs, plates, paddles, fingers on two opposite chains or set of chains, i.e. having active handling section cooperating with and facing to each other

Definitions

  • the present invention relates to a method according to the preamble of claim 1.
  • a method of this type is known from DE-A 2 018 769 and US-A 3 866 905. Thereafter, paper towels or the like, folded in succession with an edge, are placed on a first conveying path by a depositing drum, held resiliently at the lateral edges and pushed forward regularly from behind until a package of a certain size has formed. This is then pushed away by a driver or ejector behind which a new package is formed. With this procedure, paper sheets with cross folds, i.e. with three folds, cannot be processed because of their very different thicknesses. The paper sheets would have to be held firmly on the side so that the pressure generated from the back could press them evenly flat.
  • CH-A 630 041 shows a basically the same procedure. Support elements are provided to remedy the deficiencies mentioned, which enables the processing of printed sheets with a number of pages of approximately 64 pages. Today's newspaper presses are, however, able to output even higher page numbers.
  • the present invention has for its object to provide a method of the type mentioned, which allows products of any thickness to be processed and packets of any size to be ejected without causing damage to the products.
  • the delivery 1 of a folding machine places printed sheets 2 folded one after the other on a conveyor belt 3, which transports them to the inlet 4 of a device 5, where the continuous stream is converted into packs 6 of different sizes.
  • Parallel to the conveyor belt 3 is a turning element in the form of a by-pass, to which the printed sheets 2 can optionally be fed from the conveyor belt 3 by means of a switch 8 and at the end again placed on the conveyor belt 3.
  • the printing sheets 2 are turned in the turning element 7 about the axis of the incoming printing sheets parallel to the conveying direction.
  • a cover sheet feeder 9 for cover sheets labeled with the postal route is preferably arranged between the turning element 7 and the inlet 4.
  • the inlet 4 consists of a drum 10, which is wrapped by an endless conveyor belt 11 which interacts with a further endless holding belt 12, which acts vertically downwards against a conveying plane 13 and places the incoming printed sheets 2 with the preceding edge perpendicularly on the conveying plane 13 .
  • the conveyor level 13 is formed by a fixed slide rail 14. Along this slide rail 14 form two endless chain pairs 15 and 16 equipped with flexible edge holders, a conveyor section 17. The facing strands of the chain pairs 15 and 16 are directed in the same direction and driven at the same speed and follow lateral guide rails 18 for the printed sheets 2.
  • the flexible edge holders each consist of two flat plates Brushes 19, 20, of which the preceding one (19) projects essentially at right angles from the pair of chains 15 and 16 carrying them, whereas the trailing one (20) with its free bristle ends (in the area of the straight strands) against the bristle ends of the preceding (19) is inclined.
  • the brushes 19, 20 In the deflection area, that is to say in the area of the deflection sprockets, the brushes 19, 20 forming an edge holder spread out like a pair of pliers and close in a plier movement during the transition into the straight run.
  • the conveyor belt 11 ends at the end of the deflection area of the chain pairs 15, 16, where the brushes 19, 20 assigned to one another are just spread apart and places the incoming printed sheets between the brush pairs of the edge holders.
  • the two trailing brushes 20 push the incoming printing sheet 2 on the slide rail 14 in the direction of the arrow shown and pivot as soon as they reach the straight strand against the preceding brush 19 and hold the edge of the printing sheet 2 thus captured resiliently. Due to the regular arrangement of the brushes 19 and 20 on the chain pairs 15 and 16, the distance between the edge holders is constant, so that the printed sheets 2 placed on the conveying plane 13 have a regular mutual spacing along the slide rail 14.
  • the resilient edge holders each consist of two flat brushes 19, 20 with soft, resilient bristles, of which the preceding brush 19 protrudes essentially at right angles from the pair of chains 15 and 16 carrying it, whereas the trailing 20 with their free bristle ends (in the area of the straight one Trums) is inclined towards the bristle ends of the previous one.
  • the speeds of the delivery 1, the conveyor belt 3, the inlet 4 and the chain pairs 15, 16 are coordinated with one another in such a way that with each machine cycle a printing sheet is placed between the brushes 19, 20 of the edge holder pairs following the same cycle.
  • the conveying section 5 transports the printed sheets 2 upright, at right angles to the conveying direction and at a mutual distance from two parallel strapping bands 21 of a strapping device 22 - and against their resistance - on a subsequent conveying plane 23.
  • the strapping device is a commercially available product from ENDRA, 5340 AB OSS, Holland, so that their description can be dispensed with.
  • Parallel to the pairs of conveyor chains 15, 16 are two stationary guide rods 24 on which a carriage 25 connected to an endless chain 26 is mounted so as to be longitudinally displaceable.
  • the chain 26 can be driven forwards and backwards by a drive unit 27.
  • the slide carries a cylinder-piston unit 28, which a pair of ejectors 29 reaching past on both sides of the slide rail 14 (shown in the left end position in FIG. 1 and in the right end position in FIG. 2) reaches past.
  • the chain 26 can be driven at a much greater speed than the conveyor chain pairs 15, 16.
  • the ejector pair 29 can be moved upwards in any position along the conveyor path 5 between two printed sheets held by the edge holders. If, for example in FIG. 1, the first three printed sheets 2 are to be combined to form a package, the carriage 25 is moved so far forward that the pair of ejectors 29 come to lie between the third and fourth sheets.
  • the welding heads 31 are then moved toward one another and the package 6 strapped around the retaining plates 30, whereupon after the retaining plates 30 have been withdrawn, they can be pushed manually or mechanically onto a subsequent conveyor belt.
  • the strapping of the retaining plates 30 prevents the package 6 from being strapped too tightly and the associated deformation of the outer paper sheets.
  • the displacement paths of the endless chains 15, 16 and the ejector pair 29 are scanned by incremental displacement sensors and fed to a positioning control, not shown, which controls the movement of the drive unit 27.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Paper (AREA)
  • Registering Or Overturning Sheets (AREA)

Abstract

1. Process for the conversion of a continuous stream of sheets of paper (2) into packs (6) of the same or variable size, the sheets of paper (2) being placed one after the other with one edge onto a conveying plane and further transported on the conveying plane (13, 14) along a straight, first line of travel (5) and from the latter onto an adjoining second line of travel (23), the sheets of paper (2) being aligned along the first line of travel with their flat sides essentially perpendicular to the direction of conveyance and held compliantly at two edges along the first line of travel (5) and characterized in that the sheets of paper are placed onto the conveying plane (13, 14) with mutual spacing transported thereupon, in that a sheet of paper on the first line of conveyance is optionally accelerated in the direction of conveyance to a higher speed in such a way that it pushes any sheets (2) ahead of it on the first line of travel together and onto the second line of travel (23), the forwardmost sheet of a pack being retarded in the region of the second line of travel (23) by a flexible counterforce (21).

Description

Die vorliegende Erfindung bezieht sich auf ein Verfahren nach dem Oberbegriff des Anspruchs 1.The present invention relates to a method according to the preamble of claim 1.

Ein Verfahren dieser Art ist aus der DE-A 2 018 769 bzw. der US-A 3 866 905 bekannt. Danach werden durch eine Ablegetrommel nacheinander gefaltete Papierhandtücher oder dgl. mit einer Kante auf einen ersten Förderweg abgestellt, an den seitlichen Rändern nachgiebig gehalten und von hinten regelmässig vorwärts gestossen, bis sich ein Paket bestimmter Grösse gebildet hat. Dieses wird dann von einem Mitnehmer oder Ausstosser weggeschoben, hinter dem sich ein neues Paket bildet. Bei solchem Vorgehen können Papierbogen mit Kreuzbruch, also mit drei Brüchen, wegen ihrer stark unterschiedlichen Dicke nicht verarbeitet werden. Die Papierbogen müssten seitlich so fest gehalten werden, dass sie der von hinten erzeugte Druck gleichmässig flach pressen kann. Bei so hohem Widerstand der seitlichen Halterung aber würden die Zeitungen während des Ausstossvorganges an ihren Seitenrändem beschädigt. Diese Vorveröffentlichungen zeigen auch keine Möglichkeit, bei hohen Arbeitsgeschwindigkeiten sowohl Pakete mit nur einer Zeitung als auch Pakete mit n + 1 Zeitungen herzustellen. Die Ausgangsstellung für den Ausstosser ist immer im Bereich der Ablegetrommel. Er hat daher unabhängig von der Paketgrösse während jedem Ausstossvorgang einen Verschiebeweg über die ganze Länge des ersten Förderweges zurückzulegen, damit eine nachfolgende Ausstossoperation beginnen kann. Dies erfordert Zeit und senkt die Leistung der Maschine, wenn kleine Pakete auszustossen sind.A method of this type is known from DE-A 2 018 769 and US-A 3 866 905. Thereafter, paper towels or the like, folded in succession with an edge, are placed on a first conveying path by a depositing drum, held resiliently at the lateral edges and pushed forward regularly from behind until a package of a certain size has formed. This is then pushed away by a driver or ejector behind which a new package is formed. With this procedure, paper sheets with cross folds, i.e. with three folds, cannot be processed because of their very different thicknesses. The paper sheets would have to be held firmly on the side so that the pressure generated from the back could press them evenly flat. With such a high resistance of the side mount, the newspapers would be damaged on their side edges during the ejection process. These previous publications also show no possibility of producing both single-newspaper packages and n + 1 newspaper packages at high working speeds. The starting position for the ejector is always in the area of the deposit drum. Regardless of the package size, he must therefore cover a displacement path over the entire length of the first conveying path during each ejection process so that a subsequent ejection operation can begin. This takes time and lowers the machine's performance when small packages are to be ejected.

Bei einer ähnlichen Vorrichtung gemäss der CH-A607979 wird auf das seitliche Halten der Papierbogen verzichtet. Stattdessen. werden die sich bildenden Pakete am Anfang und am Ende gestützt und derart zur Entnahmestelle geführt. Die Anfangs- wie die Endstützen müssen aber stets den ganzen Verschiebeweg von der Ablegetrommel zur Entnahmestelle zurücklegen, weshalb mit einer solchen Vorrichtung eine annehmbare Leistung nur bei der Herstellung grosser Pakete erreicht werden kann.In a similar device according to CH-A607979, the paper sheets are not held laterally. Instead. the packets that form are supported at the beginning and at the end and guided to the removal point in this way. However, the beginning and the end supports must always cover the entire displacement path from the laying drum to the removal point, which is why such a device can only achieve acceptable performance when producing large packages.

Ein weiteres Verfahren ist in der CH-A 496 574 beschrieben. Im oberen Teil der dort gezeigten Vorrichtung werden die über einen Einlauf zugeführten Druckbogen auf einer Auflage zu Teilstapein aufgeschichtet, worauf die Teilstapel in einen darunter liegenden Schacht abgeworfen und auf einen unter dem Schacht liegenden drehbaren Stapeltisch zu einem Stapel aufgeschichtet werden. Der Stapeltisch wird jeweils zwischen dem Abwurf von zwei sich folgenden Teilstapeln um 180° gedreht, so dass ein Kreuzlegen erfolgt, das die durch den Falz der Papierbogen bedingten ungleichen Höhen der Teilstapel ausgleicht. Dieses Vorgehen ist nur beschränkt anwendbar. Insbesondere bei einer Tageszeitung mit hoher Seitenzahl, die im fertigen Zustand eine Kreuzbruchfalzung mit drei Brüchen aufweist, wird das Aufeinanderschichten zu Teilstapeln oder Stapeln schwierig, da sich die einzelnen Zeitungen während dem Abwurf vom Einlauf auf die Auflage öffnen können. Das gleiche gilt, wenn Teilstapel von der Auflage auf den Stapeltisch fallen. Ein prinzipiell gleiches Vorgehen zeigt die CH-A 630 041. Zur Beseitigung der erwähnten Mängel sind Tragorgane vorgesehen, was die Verarbeitung von Druckbogen mit einer Seitenzahl von zirka 64 Seiten ermöglicht Die heutigen Zeitungsrotationen sind aber in der Lage, noch wesentlich höhere Seitenzahlen auszustossen.Another process is described in CH-A 496 574. In the upper part of the device shown there, the printed sheets fed in via an inlet are stacked on a support to form partial stacks, whereupon the partial stacks are thrown into a shaft underneath and stacked on a rotating stacking table located underneath the shaft to form a stack. The stacking table is rotated by 180 ° between the discharge of two successive partial stacks, so that a cross-laying takes place which compensates for the uneven heights of the partial stacks caused by the fold of the paper sheets. This procedure can only be used to a limited extent. Particularly in the case of a daily newspaper with a large number of pages, which in the finished state has a cross fold with three folds, the stacking up into partial stacks or stacks becomes difficult since the individual newspapers can open from the inlet to the edition during the discharge. The same applies if partial stacks fall from the support onto the stacking table. CH-A 630 041 shows a basically the same procedure. Support elements are provided to remedy the deficiencies mentioned, which enables the processing of printed sheets with a number of pages of approximately 64 pages. Today's newspaper presses are, however, able to output even higher page numbers.

Zudem verlangt die heutige Versandtechnik die Verarbeitung von postroutengerechten Paketen, das heisst, die Pakete müssen mit unterschiedlicher Stückzahl gebildet werden und können im Extremfall nur ein'e Zeitung beinhalten. Die erwähnten Vorrichtungen können diese Forderung nicht erfüllen.In addition, today's shipping technology requires the processing of parcels in accordance with the postal route, which means that the parcels have to be formed with different quantities and, in extreme cases, can only contain one newspaper. The devices mentioned cannot meet this requirement.

Die vorliegende Erfindung stellt sich die Aufgabe, ein Verfahren der eingangs erwähnten Art zu schaffen, das es erlaubt, Produkte jeglicher Dicke zu verarbeiten und Pakete jeglicher Grösse auszustossen, ohne dass Beschädigungen an den Produkten auftreten.The present invention has for its object to provide a method of the type mentioned, which allows products of any thickness to be processed and packets of any size to be ejected without causing damage to the products.

Erfindungsgemäss wird die Aufgabe gelöst durch die Merkmale des Anspruches 1.According to the invention, the object is achieved by the features of claim 1.

Anhand der beiliegenden schematischen Zeichnung wird die Erfindung beispielsweise erläutert. Es zeigen :

  • Fig. 1 eine Seitenansicht einer erfindungsgemässen Vorrichtung, wobei die vordere Abdeckung sowie Teile weggelassen sind,
  • Fig. 2 eine Draufsicht auf den rechten Teil von Fig.. 1 in vergrösserter Darstellung.
The invention is explained, for example, with the aid of the attached schematic drawing. Show it :
  • 1 is a side view of a device according to the invention, the front cover and parts being omitted,
  • Fig. 2 is a plan view of the right part of Fig .. 1 in an enlarged view.

Auf die in Fig. 1 gezeigte Transportstrecke legt die Auslage 1 einer Falzmaschine nacheinander gefaltete Druckbogen 2 auf ein Förderband 3, welches jene zum Einlauf 4 einer Vorrichtung 5 transportiert, wo der kontinuierliche Strom in Pakete 6 unterschiedlicher Grösse umgesetzt wird. Parallel zum Förderband 3 verläuft ein Wendeelement in Form eines By-pass, dem die Druckbogen 2 vom Förderband 3 wahlweise mittels einer Weiche 8 zugeführt und am Ende wieder auf das Förderband 3 gelegt werden können. Das Wenden der Druckbogen 2 im Wendeelement 7 erfolgt um die zur Förderrichtung parallele Achse der einlaufenden Druckbogen. Zwischen dem Wendeelement 7 und dem Einlauf 4 ist vorzugsweise ein Deckblattanleger 9 für mit der Postroute beschriftete Deckblätter angeordnet. Der Einlauf 4 besteht aus einer Trommel 10, die von einem endlosen, mit einem weiteren endlosen Halteband 12 zusammenwirkenden Förderband 11 umschlungen ist, das senkrecht nach unten gegen eine Förderebene 13 wirkt und die ankommenden Druckbogen 2 mit der vorangehenden Kante senkrecht auf die Förderebene 13 abstellt. Die Förderebene 13 ist durch eine ortsfeste Gleitschiene 14 gebildet. Längs dieser Gleitschiene 14 bilden zwei mit nachgiebigen Randhaltem bestückte endlose Kettenpaare 15 und 16 eine Förderstrecke 17. Die einander zugewandten Trums der Kettenpaare 15 und 16 sind gleich gerichtet und mit gleicher Geschwindigkeit angetrieben und folgen seitlichen Führungsschienen 18 für die Druckbogen 2. Die nachgiebigen Randhalter bestehen aus je zwei flachen Bürsten 19, 20, von denen die vorangehende (19) im wesentlichen rechtwinklig vom sie tragenden Kettenpaar 15 bzw. 16 wegragt, wogegen die nachlaufende (20) mit ihren freien Borstenenden (im Bereich der geraden Trums) gegen die Borstenenden der vorangehenden (19) geneigt ist. Im Umlenkbereich, das heisst im Bereich der Umlenkkettenräder spreizen die einen Randhalter bildenden Bürsten 19, 20 zangenartig auf und schliessen sich in einer Zangenbewegung beim Übergang in den geraden Trum. Das Förderband 11 endet am Ende des Umlenkbereiches der Kettenpaare 15, 16, wo die einander zugeordneten Bürsten 19, 20 gerade noch aufgespreizt sind und stellt die ankommenden Druckbogen jeweils zwischen die Bürstenpaare der Randhalter. Die beiden nachlaufenden Bürsten 20 schieben den ankommenden Druckbogen 2 auf der Gleitschiene 14 in Richtung des eingezeichneten Pfeiles und schwenken, sobald sie den geraden Trum erreichen, gegen die vorangehende Bürste 19 und halten den Rand des so erfassten Druckbogens 2 nachgiebig fest. Durch die regelmässige Anordnung der Bürsten 19 und 20 an den Kettenpaaren 15 und 16 ist der Abstand zwischen den Randhaltem konstant, so dass die auf die Förderebene 13 abgestellten Druckbogen 2 längs der Gleitschiene 14 einen regelmässigen gegenseitigen Abstand haben.On the transport route shown in FIG. 1, the delivery 1 of a folding machine places printed sheets 2 folded one after the other on a conveyor belt 3, which transports them to the inlet 4 of a device 5, where the continuous stream is converted into packs 6 of different sizes. Parallel to the conveyor belt 3 is a turning element in the form of a by-pass, to which the printed sheets 2 can optionally be fed from the conveyor belt 3 by means of a switch 8 and at the end again placed on the conveyor belt 3. The printing sheets 2 are turned in the turning element 7 about the axis of the incoming printing sheets parallel to the conveying direction. A cover sheet feeder 9 for cover sheets labeled with the postal route is preferably arranged between the turning element 7 and the inlet 4. The inlet 4 consists of a drum 10, which is wrapped by an endless conveyor belt 11 which interacts with a further endless holding belt 12, which acts vertically downwards against a conveying plane 13 and places the incoming printed sheets 2 with the preceding edge perpendicularly on the conveying plane 13 . The conveyor level 13 is formed by a fixed slide rail 14. Along this slide rail 14 form two endless chain pairs 15 and 16 equipped with flexible edge holders, a conveyor section 17. The facing strands of the chain pairs 15 and 16 are directed in the same direction and driven at the same speed and follow lateral guide rails 18 for the printed sheets 2. The flexible edge holders each consist of two flat plates Brushes 19, 20, of which the preceding one (19) projects essentially at right angles from the pair of chains 15 and 16 carrying them, whereas the trailing one (20) with its free bristle ends (in the area of the straight strands) against the bristle ends of the preceding (19) is inclined. In the deflection area, that is to say in the area of the deflection sprockets, the brushes 19, 20 forming an edge holder spread out like a pair of pliers and close in a plier movement during the transition into the straight run. The conveyor belt 11 ends at the end of the deflection area of the chain pairs 15, 16, where the brushes 19, 20 assigned to one another are just spread apart and places the incoming printed sheets between the brush pairs of the edge holders. The two trailing brushes 20 push the incoming printing sheet 2 on the slide rail 14 in the direction of the arrow shown and pivot as soon as they reach the straight strand against the preceding brush 19 and hold the edge of the printing sheet 2 thus captured resiliently. Due to the regular arrangement of the brushes 19 and 20 on the chain pairs 15 and 16, the distance between the edge holders is constant, so that the printed sheets 2 placed on the conveying plane 13 have a regular mutual spacing along the slide rail 14.

Die nachgiebigen Randhalter bestehen aus je zwei flachen Bürsten 19, 20 mit weichen, nachgiebigen Borsten, von denen die vorangehende Bürste 19 im wesentlichen rechtwinklig vom sie tragenden Kettenpaar 15 bzw. 16 wegragt, wogegen die nachlaufende 20 mit ihren freien Borstenenden (im Bereich des geraden Trums) gegen die Borstenenden der vorangehenden geneigt ist.The resilient edge holders each consist of two flat brushes 19, 20 with soft, resilient bristles, of which the preceding brush 19 protrudes essentially at right angles from the pair of chains 15 and 16 carrying it, whereas the trailing 20 with their free bristle ends (in the area of the straight one Trums) is inclined towards the bristle ends of the previous one.

Die Geschwindigkeiten der Auslage 1, des Förderbandes 3, des Einlaufs 4 und der Kettenpaare 15, 16 sind derart aufeinander abgestimmt, dass mit jedem Maschinentakt jeweils ein Druckbogen zwischen die Bürsten 19, 20 der taktgleich folgenden Randhalterpaare gestellt werden. Die Förderstrecke 5 transportiert die Druckbogen 2 aufrecht, in rechtwinkliger Orientierung zur Förderrichtung und mit gegenseitigem Abstand gegen zwei parallele Umreifungsbänder 21 einer Umreifungsvorrichtung 22 - und gegen deren Widerstand - auf eine anschliessende Förderebene 23. Die Umreifungsvorrichtung ist ein handelsübliches Fabrikat der Firma ENDRA, 5340 AB OSS, Holland, so dass auf deren Beschreibung verzichtet werden kann. Parallel zu den Förderkettenpaaren 15, 16 verlaufen zwei ortsfeste Führungsstangen 24 auf denen ein mit einer endlosen Kette 26 verbundener Schlitten 25 längs verschiebbar gelagert ist Die Kette 26 ist von einer Antriebseinheit 27 vorwärts und rückwärts antreibbar. Der Schlitten trägt eine Zylinderkolbeneinheit 28 an der ein an der Gleitschiene 14 beidseitig vorbeigreifendes Ausstosserpaar 29 (in Fig. 1 in der linken und in Fig. 2 in der rechten Endlage gezeigt) vorbeigreift. Die Kette 26 ist mit wesentlich grösserer Geschwindigkeit antreibbar als die Förderkettenpaare 15, 16. Zudem kann das Ausstosserpaar 29 in jeder Stellung entlang der Förderstrecke 5 zwischen zwei von den Randhaltem gehaltene Druckbogen nach oben bewegt werden. Sollen nun beispielsweise in Fig. 1 die ersten drei Druckbogen 2 zu einem Paket vereinigt werden, so wird der Schlitten 25 so weit nach vorne bewegt, dass das Ausstosserpaar 29 zwischen den dritten und vierten Bogen zu liegen kommen. In dieser Lage wird (während sich die Kettenpaare 15, 16, wie auch die Kette 26, mit gleichbleibender Geschwindigkeit vorwärts bewegen) das Ausstosserpaar 29 nach oben bewegt und anschliessend die Geschwindigkeit des Schlitttens 25 beschleunigt, so dass das Ausstosserpaar 29 zuerst den dritten, dann den zweiten und zuletzt den ersten Bogen vor sich her gegen die beiden Umreifungsbänder 21 und gegen deren Widerstand auf die Förderebene 23 schiebt. Dabei werden die Bogen 2 an den nachgiebigen Randhaltem vorbei geschoben, welche dabei in Förderrichtung gebogen werden und danach zurück federn. Am Ende der Ausstossbewegung (Fig.2) werden von der Seite Rückhalteplatten 30 hinter das Ausstosserpaar 29 geschoben, worauf dieses mit der Zylinderkolbeneinheit 28 wieder abgesenkt und von der Antriebseinheit 27 zurück in die nächste Bereitstellung gefahren werden kann. Anschliessend werden die Schweissköpfe 31 gegeneinander bewegt und das Paket 6 um die Rückhalteplatten 30 herum umreift, worauf es, nach dem Rückzug der Rückhalteplatten 30 manuell oder mechanisch auf ein anschliessendes Förderband geschoben werden kann. Das Mitumreifen der Rückhalteplatten 30 verhindert eine zu straffe Umreifung des Paketes 6 und eine damit verbundene Verformung der äusseren Papierbogen.The speeds of the delivery 1, the conveyor belt 3, the inlet 4 and the chain pairs 15, 16 are coordinated with one another in such a way that with each machine cycle a printing sheet is placed between the brushes 19, 20 of the edge holder pairs following the same cycle. The conveying section 5 transports the printed sheets 2 upright, at right angles to the conveying direction and at a mutual distance from two parallel strapping bands 21 of a strapping device 22 - and against their resistance - on a subsequent conveying plane 23. The strapping device is a commercially available product from ENDRA, 5340 AB OSS, Holland, so that their description can be dispensed with. Parallel to the pairs of conveyor chains 15, 16 are two stationary guide rods 24 on which a carriage 25 connected to an endless chain 26 is mounted so as to be longitudinally displaceable. The chain 26 can be driven forwards and backwards by a drive unit 27. The slide carries a cylinder-piston unit 28, which a pair of ejectors 29 reaching past on both sides of the slide rail 14 (shown in the left end position in FIG. 1 and in the right end position in FIG. 2) reaches past. The chain 26 can be driven at a much greater speed than the conveyor chain pairs 15, 16. In addition, the ejector pair 29 can be moved upwards in any position along the conveyor path 5 between two printed sheets held by the edge holders. If, for example in FIG. 1, the first three printed sheets 2 are to be combined to form a package, the carriage 25 is moved so far forward that the pair of ejectors 29 come to lie between the third and fourth sheets. In this position (while the chain pairs 15, 16, as well as the chain 26, move forward at a constant speed), the ejector pair 29 is moved upwards and then the speed of the carriage 25 is accelerated, so that the ejector pair 29 first the third, then pushes the second and finally the first sheet against the two strapping bands 21 and against their resistance onto the conveying plane 23. The sheets 2 are pushed past the resilient edge holders, which are bent in the conveying direction and then spring back. At the end of the ejection movement (FIG. 2), retaining plates 30 are pushed behind the ejector pair 29 from the side, whereupon this can be lowered again with the cylinder-piston unit 28 and driven back into the next position by the drive unit 27. The welding heads 31 are then moved toward one another and the package 6 strapped around the retaining plates 30, whereupon after the retaining plates 30 have been withdrawn, they can be pushed manually or mechanically onto a subsequent conveyor belt. The strapping of the retaining plates 30 prevents the package 6 from being strapped too tightly and the associated deformation of the outer paper sheets.

Die Verschiebewege der endlosen Ketten 15, 16 und des Ausstosserpaares 29 werden durch inkrementale Weggeber abgetastet und einer nicht dargestellten Positionierungssteuerung zugeführt, welche die Bewegung der Antriebseinheit 27 steuert.The displacement paths of the endless chains 15, 16 and the ejector pair 29 are scanned by incremental displacement sensors and fed to a positioning control, not shown, which controls the movement of the drive unit 27.

Claims (11)

1. Process for the conversion of a continuous stream of sheets of paper (2) into packs (6) of the same or variable size, the sheets of paper (2) being placed one after the other with one edge onto a conveying plane and further transported on the conveying plane (13, 14) along a straight, first line of travel (5) and from the latter onto an adjoining second line of travel (23), the sheets of paper (2) being aligned along the first line of travel with their flat sides essentially perpendicular to the direction of conveyance and held compliantly at two edges along the first line of travel (5) and characterized in that the sheets of paper are placed onto the conveying plane (13, 14) with mutual spacing transported thereupon, in that a sheet of paper on the first line of conveyance is optionally accelerated in the direction of conveyance to a higher speed in such a way that it pushes any sheets (2) ahead of it on the first line of travel together and onto the second line of travel (23), the forwardmost sheet of a pack being retarded in the region of the second line of travel (23) by a flexible counterforce (21).
2. Apparatus for carrying out the process according to Claim 1, characterized by an infeed (4), which steers the sheets of paper (2) with one edge in front perpendicularly onto a first conveyor (13 to 16, 19, 20) extending along a first line of travel (5), the conveyor having along this line of travel (5) effective, compliant edge holders (19, 20) for the sheets (2), which hold the printed sheets at a distance in the direction of conveyance and which hold the sheets with their flat sides transverse to the direction of conveyance, the conveying plane (13) of this conveyor being adjoined in a coplanar manner by a second conveying plane (23), along which there is a retarding member (21) acting in opposition to the conveyor, and an ejection member (29) can be moved in and out at any point along the conveyor in its area of operation and which can be driven in the direction of conveyance of the conveyor at greater speed than that of the conveyor along an advancement path up to the adjoining conveying plane (23).
3. Use of an apparatus according to Claim 2 in a transport line for sheets of paper, characterized in that the apparatus (5) is used as part of the transport line, in that there is a line section parallel to the transport line ahead of the apparatus (5) in the direction of conveyance of the transport line, over which section the sheets of paper can optionally be directed, and in that this line section is designed as a turning element (7), which turns the sheets of paper (2) through 180° about their axis parallel to the direction of conveyance.
4. Use according to Claim 3, characterized in that, between the line section (7) and the apparatus (5) there is provided a cover-sheet feeder (9), acting counter to the transport line.
5. Apparatus according to Claim 2, characterized in that the conveyor has two endless strands (15, 16) with two mutually facing, parallel and spaced-apart sides, which sides are disposed in the same direction and can be driven at the same speed, in that on these sides there are flexible edge holders (19, 20) spaced regularly apart opposite one another.
6. Apparatus according to Claim 5, characterized in that the edge holders (19, 20) are fin-like flexible members oriented perpendicularly to the conveying plane (13), with their free ends inclined towards each other.
7. Apparatus according to Claim 1, characterized in that the members are flat brushes.
8. Apparatus according to Claim 2, characterized in that the retarding member (21) is formed by the strap of a strapping device (22).
9. Apparatus according to Claim 6, characterized in that the infeed (4) ends still in the region of the endless strands (15, 16) but ahead of the straight sections of the mutually facing sides.
10. Apparatus according to Claim 8, characterized in that, at the end of the advancement path, two retaining plates (30) can be pushed behind the ejecting member (29) and can be removed after strapping has been performed.
11. Apparatus according to one of Claims 2 or 4 to 10, characterized in that the displacement distance of the conveyor (13 to 18, 19, 20) is detected by incremental distance transducers and is signalled to a positioning control, and in that the drive unit (27) is controlled by the positioning control.
EP87102755A 1986-04-07 1987-02-26 Method for turning a continuous stream of paper sheets into packets Expired - Lifetime EP0240691B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87102755T ATE49181T1 (en) 1986-04-07 1987-02-26 METHOD OF CONVERTING A CONTINUOUS STREAM OF PAPER SHEET INTO PACKAGES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1359/86A CH670810A5 (en) 1986-04-07 1986-04-07
CH1359/86 1986-04-07

Publications (2)

Publication Number Publication Date
EP0240691A1 EP0240691A1 (en) 1987-10-14
EP0240691B1 true EP0240691B1 (en) 1990-01-03

Family

ID=4208607

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87102755A Expired - Lifetime EP0240691B1 (en) 1986-04-07 1987-02-26 Method for turning a continuous stream of paper sheets into packets

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EP (1) EP0240691B1 (en)
AT (1) ATE49181T1 (en)
CH (1) CH670810A5 (en)
DE (1) DE3761303D1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT240792Y1 (en) * 1996-07-16 2001-04-11 Sitma Spa TURNING DEVICE OF AN EDITORIAL PRODUCT IN A PACKAGING LINE
IT1316314B1 (en) * 2000-01-31 2003-04-10 Sitma Spa TURNING DEVICE FOR EDITORIAL GRAPHIC PRODUCTS IN A TRANSPORT AND / OR PACKAGING LINE
IT1315042B1 (en) * 2000-08-14 2003-01-27 Perini Fabio Spa DEVICE AND METHOD TO SEPARATE AMONG THEIR PACKAGES OF MANUFACTILAMINARIES
DE102010025224B4 (en) * 2010-06-23 2014-08-21 Palamides Gmbh Device and method for transporting flat products

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2018769A1 (en) * 1970-04-18 1971-10-28 Fichte, Heinrich, 4005 Meerbusch Deposit, counting and transport device on paper and cellulose wadding processing machines
US3866905A (en) * 1972-10-04 1975-02-18 Bretting C G Mfg Co Inc Separator and transfer device for paper napkins, towels and the like
CH607979A5 (en) * 1977-02-07 1978-12-15 Sisenca Sa Device for handling stackable articles
CH630041A5 (en) * 1978-04-28 1982-05-28 Grapha Holding Ag Device for forming paper sheet stacks from partial stacks

Also Published As

Publication number Publication date
EP0240691A1 (en) 1987-10-14
CH670810A5 (en) 1989-07-14
DE3761303D1 (en) 1990-02-08
ATE49181T1 (en) 1990-01-15

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