EP0551601B1 - Method and device for feeding particularly folded printed products to a further processing station - Google Patents

Method and device for feeding particularly folded printed products to a further processing station Download PDF

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Publication number
EP0551601B1
EP0551601B1 EP92120375A EP92120375A EP0551601B1 EP 0551601 B1 EP0551601 B1 EP 0551601B1 EP 92120375 A EP92120375 A EP 92120375A EP 92120375 A EP92120375 A EP 92120375A EP 0551601 B1 EP0551601 B1 EP 0551601B1
Authority
EP
European Patent Office
Prior art keywords
conveying device
conveying
intermediate stack
region
printing
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
EP92120375A
Other languages
German (de)
French (fr)
Other versions
EP0551601A1 (en
Inventor
Willy Leu
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.)
Ferag AG
Original Assignee
Ferag AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ferag AG filed Critical Ferag AG
Publication of EP0551601A1 publication Critical patent/EP0551601A1/en
Application granted granted Critical
Publication of EP0551601B1 publication Critical patent/EP0551601B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F13/00Common details of rotary presses or machines
    • B41F13/54Auxiliary folding, cutting, collecting or depositing of sheets or webs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/66Advancing articles in overlapping streams
    • B65H29/669Advancing articles in overlapping streams ending an overlapping stream
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/003Delivering or advancing articles from machines; Advancing articles to or into piles by grippers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/24Delivering or advancing articles from machines; Advancing articles to or into piles by air blast or suction apparatus
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H83/00Combinations of piling and depiling operations, e.g. performed simultaneously, of interest apart from the single operation of piling or depiling as such
    • B65H83/02Combinations of piling and depiling operations, e.g. performed simultaneously, of interest apart from the single operation of piling or depiling as such performed on the same pile or stack
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00Handling processes for sheets or webs
    • B65H2301/40Type of handling process
    • B65H2301/42Piling, depiling, handling piles
    • B65H2301/421Forming a pile
    • B65H2301/4212Forming a pile of articles substantially horizontal
    • B65H2301/42122Forming a pile of articles substantially horizontal by introducing articles from under the pile
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00Handling processes for sheets or webs
    • B65H2301/40Type of handling process
    • B65H2301/42Piling, depiling, handling piles
    • B65H2301/421Forming a pile
    • B65H2301/4213Forming a pile of a limited number of articles, e.g. buffering, forming bundles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00Handling processes for sheets or webs
    • B65H2301/40Type of handling process
    • B65H2301/44Moving, forwarding, guiding material
    • B65H2301/447Moving, forwarding, guiding material transferring material between transport devices
    • B65H2301/4471Grippers, e.g. moved in paths enclosing an area
    • B65H2301/44712Grippers, e.g. moved in paths enclosing an area carried by chains or bands
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00Handling processes for sheets or webs
    • B65H2301/40Type of handling process
    • B65H2301/44Moving, forwarding, guiding material
    • B65H2301/447Moving, forwarding, guiding material transferring material between transport devices
    • B65H2301/4472Suction grippers, e.g. moved in paths enclosing an area
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00Handling processes for sheets or webs
    • B65H2301/40Type of handling process
    • B65H2301/44Moving, forwarding, guiding material
    • B65H2301/447Moving, forwarding, guiding material transferring material between transport devices
    • B65H2301/4473Belts, endless moving elements on which the material is in surface contact
    • B65H2301/44732Belts, endless moving elements on which the material is in surface contact transporting articles in overlapping stream
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00Handling processes for sheets or webs
    • B65H2301/40Type of handling process
    • B65H2301/44Moving, forwarding, guiding material
    • B65H2301/447Moving, forwarding, guiding material transferring material between transport devices
    • B65H2301/4474Pair of cooperating moving elements as rollers, belts forming nip into which material is transported
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2405/00Parts for holding the handled material
    • B65H2405/50Gripping means
    • B65H2405/58Means for achieving gripping/releasing operation
    • B65H2405/583Details of gripper orientation
    • B65H2405/5832Details of gripper orientation and varying its orientation after gripping

Definitions

  • the present invention relates to a method and a device for feeding preferably folded printed products to a further processing point according to the preamble of claim 1 and claim 5.
  • the supplied printed products in the transfer area are inserted directly into the passing open grippers of the conveyor by the feed conveyor.
  • the conveying direction of the conveyer runs from bottom to top and transversely to the conveying direction of the supplied printed products.
  • GB-A-2,205,819 and GB-A-1,036,346 devices for feeding printers with individual, unprinted products are known.
  • these products are peeled periodically from a stack adjacent to the printer (GB-A-2,205,819) or periodically separated from a roll of paper adjacent to the printer (GB-1,036,346) and then stacked in a scale formation in which each product rests on the leading product.
  • This scale formation in which the distances between successive products are approximately the same, is guided around a deflection drum and then conveyed against a stop defining a stacking point.
  • an intermediate stack of a given, essentially constant height is formed on a fixed table, from the top of which the products are lifted off by means of a suction mechanism and individually fed directly to the feed of the printer.
  • the present invention is based on the object of creating a method and a device of the type mentioned at the outset which allow the printed products to be fed to a further processing point in the desired sequence with the least possible design outlay, regardless of the quality of the shed format supplied.
  • FIGS. 1-3 A first embodiment of a device according to the invention will now be described with reference to FIGS. 1-3.
  • This device has a first conveyor device 1, which delivers folded printed products 2 in a scale formation S.
  • each printed product rests on the subsequent product 2.
  • the trailing edge 2a of the printed products 2 lies in the scale formation S at the top.
  • this trailing edge of the folded printed products 2 is formed by the folded edge 2a.
  • the open side edge 2b opposite this fold edge 2a accordingly forms the leading edge.
  • the conveyor device 1 has a belt conveyor 3 and an apron conveyor 4 connected downstream of this.
  • the apron conveyor 4 is formed by a number of round aprons 5 (FIG. 2) which run parallel to one another and at a distance from one another and are guided over deflection rollers 6 and 7, of which one deflection roller is driven.
  • the belt conveyor 3 and the apron conveyor 4 can have the same or different conveying speeds.
  • the deflecting rollers 6, 7 are rotatably mounted in two arms 8, 9 (FIG. 2) running parallel to one another.
  • the apron conveyor 4 is designed as a rocker which can be pivoted about the axis 6 'of the deflection roller 6 and is supported on a piston-cylinder unit 10 which is only shown schematically in FIG. 1. By means of the latter, the pivoting position of the apron conveyor 4 is set in a manner to be described.
  • a stop 11 which has a number of stop fingers 12 (FIG. 2) which are arranged at a distance from one another and each extend between two round aprons 5.
  • a conveyor roller 13 is provided in front of the stop 11, which extends transversely to the conveying direction A and rests on the scale formation S.
  • This conveyor roller 13 is rotatably supported on both ends in an arm 14 or 15 by means of bearings 16, 17 (FIG. 2).
  • the arms 14, 15 are in turn mounted on a shaft 18 at the other end, by means of self-aligning bearings 19, 20.
  • the shaft 18 passes through the arms 14, 15 of the strappy conveyor 4 and is supported in bearing parts 21, 22 which are attached to the arms 14 or 15 are attached (Fig. 2).
  • the shaft 18 is supported by bearings 23 and 24.
  • At one end of the shaft 18 there is a gearwheel 25 which is driven by a drive, not shown, via a drive chain 26.
  • This gear 25 meshes with a gear 27 which is firmly seated on an extension 13a of the conveyor roller 13.
  • the conveyor roller 13 is thus driven in a rotating manner in the direction of the arrow T (FIG. 3).
  • the conveyor roller 13 which exerts a conveying effect on the printed products 2 can adapt to the changing height of the scale formation S thanks to its oscillating mounting. Since the two bearing arms 14, 15 for the conveying roller 13 are pivoted independently of one another, as described, the conveying roller 13 can also adapt if differences in thickness occur in the scale formation S in a direction transverse to the conveying direction A.
  • a stacking point 28 is defined between the conveyor roller 13 and the stop 11, at which the printed products 2 are stacked to form an intermediate stack 29.
  • a support plate 30 (FIG. 2) is arranged below the round apron 5, by means of which it is prevented that the round aprons 5 can bend under the weight of the intermediate stack 29.
  • the printed products 2 are pushed into the intermediate stack 29 from below by the apron conveyor 4.
  • the driven conveyor roller 13 supports the insertion of the printed products 2 into the intermediate stack 29.
  • the stop 11 slows the feed movement of the printed products 2.
  • a height monitoring arrangement is shown purely schematically, the z. B. can be designed as a light barrier.
  • This height monitoring arrangement 31 is connected to a control arrangement, not shown, which controls the cylinder-piston unit 10 and thus the swivel position of the apron conveyor 4.
  • This height monitoring arrangement 31 ensures that the upper side 29a of the intermediate stack 29 is always at approximately the same level H. This is achieved in that when the height of the intermediate stack 29 changes, the apron conveyor 4 is pivoted upwards or downwards by means of the piston-cylinder unit 10 in order to keep the stack top 29a at the desired height H.
  • apron conveyor 4 there is a second conveyor device 32 which has individually controllable grippers 33, which are attached at regular intervals to an endless chain, not shown, which is guided in a chain channel 34.
  • the chain and thus also the grippers 33 rotate in the direction of arrow B (FIG. 1).
  • Each gripper 33 has a support element 35 fastened to the chain, on which a clamping plate 36 and two clamping fingers 37 cooperating therewith are pivotably mounted.
  • the two clamping fingers 37 arranged at a distance from one another are under the action of a closing spring 38 which presses the clamping finger 37 against the clamping plate 36 and thus keeps the gripper 33 closed.
  • the two closing springs 38 are arranged on a bolt 39 which is mounted in the support element 35 and about the longitudinal axis of which the clamping plate 36 can be freely pivoted together with the associated clamping fingers 37.
  • a control arm 40 is connected to each clamping finger 37 and carries a control roller 41 at its end.
  • the clamping plates 36 are provided with a shoulder 36a, which is directed backwards in the conveying direction B and is intended to interact with a positioning link 42.
  • an opening link 43 is used, which cooperates with the control roller 41 and causes the clamping fingers 37 to be lifted off the clamping plate 36 against the force of the closing springs 38.
  • a suction device arrangement In order to bring the printed products 2 from the intermediate stack 29 into the conveying area F of the conveying device 32, ie into the movement path of the opened grippers 33, a suction device arrangement, generally designated 44, is provided.
  • This has two suction heads 45 and 46 arranged at a distance from one another (FIG. 2), each of which is fastened to a tubular support arm 47.
  • a connecting hose 48 is connected to each support arm and is connected to a vacuum source, not shown, which can be switched on and off periodically.
  • Each support arm 47 is further connected to a drive 49 only partially shown in FIG. 2, which will be explained in more detail with reference to FIGS. 4 and 5. By means of this drive 49, the suction heads 45, 46 are moved along a closed, approximately pear-shaped orbit 50.
  • these orbits 50 run to the side of the conveyor 32.
  • Each orbit 50 runs upwards from a takeover point 51, which is located on the top of the stack 29a in the area of the trailing fold edge 2a of the printed products 2, to a delivery point 52 and then on upwards and in a loop back to the transfer point 51.
  • the suction heads 45, 46 are connected to the vacuum source. This means that the uppermost printed product 2 'in the intermediate stack 29 in the area of the fold 2a is gripped by the suction heads 45, 46 and taken upwards into the conveying area F of the conveying device 32.
  • the grippers 33 are brought into the suitable pivot position by means of the positioning link 42. How especially out 3 can be seen, the clamping plate 36 with the clamping fingers 37 are pivoted by means of the positioning link 42 during the takeover of the printed products 2, so that a correct gripping of the printed products 2 in the area of their fold 2a is ensured by the grippers 33.
  • the tubular support arm 47 to which the suction head 45 is attached, is attached to one arm 53a of a two-armed lever 53, the other arm 53b of which is angled relative to the arm 53a.
  • the arm 53b forms the coupling of a crank rocker 54 and is connected to a crank 56 via a joint 55, the joint pin of which is designated 55a.
  • the latter is seated on a shaft 57 which is driven in the direction of arrow D and rotates in a bearing 58 is rotatably mounted.
  • the shaft 57 the longitudinal axis of which is designated 57 ', is driven by a drive device, not shown.
  • the arm 53b of the lever 53 is connected to a rocker arm 60 via a hinge 59, the hinge pin of which is designated 59a.
  • the latter is attached to a shaft 61 which is freely rotatably mounted in a bearing 62.
  • the longitudinal axis of this shaft 61 is designated 61 '.
  • the rocker 60 With the crank 56 rotating, the rocker 60 is pivoted back and forth between two end positions, which are shown in broken lines in FIG. 4 and form an angle ⁇ .
  • the two end positions of the rocker arm 60 are designated by the positions of the pivot pin 59a, designated 59a ′ and 59a ′′.
  • the suction head 45 is now moved upward from the takeover point 51 along the section 50a of the orbit 50 to the delivery point 52.
  • the suction head 45 is connected to the vacuum source between the take-over point 51 and the delivery point 52 and takes a printed product 2 with it. After switching off the vacuum source, the printed product is released.
  • the suction head 45 is moved further in the direction of arrow C along the orbit 50 until it arrives at the takeover point 51, where the next printed product 2 is detected. It is obvious that the orbit 50 is selected such that the suction head 45 runs around the printed product 2 after it has been released, so that the gripper 33 grips the printed product by the suction head movement is not affected.
  • the printed products 2 fed in by the belt conveyor 3 in scale formation S are conveyed with the folded edge 2a to the stacking point 28 and are inserted there at the bottom with the support of the conveying roller 13 into the intermediate stack 29.
  • the uppermost printed product 2 in the intermediate stack 29 is captured by the suction heads 45, 46 in the region of the folded edge 2a and lifted upwards from the intermediate stack 29.
  • the folded edge 2a is brought into the path of movement of the open grippers 33 and clamped between the clamping plate 36 and the clamping fingers 37.
  • the grippers 33 are closed by the closing springs 38 after the control roller 41 has run off the opening link 43.
  • the printed products 2 gripped by the grippers 33 are then completely lifted off the intermediate stack 29 and guided upwards to a further processing point (not shown).
  • the open side edge 2b of the printed products 2 leading in the supplied scale formation S and covered by the leading printed product is exposed after being taken over by the conveyor device 32, which means that the folded printed products can be opened while they are still being held by the grip
  • the suction arrangement 44 is designed such that the suction heads 45, 46 act on the printed products 2 in the area of the fold 2a as described.
  • the suction arrangement 44 and the conveying device 32 remain the same, but the apron conveyor 4 has to be pivoted about the axis 7 'of the deflecting roller 7 instead of about the axis 6'.
  • stop 11 and conveyor roller 13 are to be exchanged for one another, as is evident from FIG. 1.
  • the gripping and feeding of the printed products 2 into the conveying area F of the grippers 33 is the same as already described with reference to FIG. 1.
  • FIG. 6 is very similar to the embodiment according to FIGS. 1-3 and differs from the latter only in a different configuration of the suction arrangement and the delivery of the printed products 2 from the intermediate stack 29 to the grippers 33 corresponding parts use the same reference numerals as in FIGS. 1-3.
  • the device according to FIG. 6 is used to process printed products 2 which assume a different position within the supplied scale formation S than in the scale formation S which is fed to the device according to FIGS. 1-3.
  • each printed product 2 in the scale formation S fed by the belt conveyor 3, each printed product 2 also rests on the subsequent printed product.
  • the leading and thus hidden edges of the printed products 2 in contrast to the scale formation S shown in FIG. 1, formed by the folded edges 2a.
  • the printed products 2 must be grasped by the suction arrangement designated 65 in FIG. 6 in the region of their edge 2a abutting the stop 11.
  • the printed products 2 are not introduced into the grippers 33 with their folded edge 2a, but with their opposite open side edge 2b.
  • the suction arrangement 65 has two suction heads 66 which operate synchronously or at most in push-pull, of which only one suction head is shown in FIG. 6. This is moved by means of a drive to be described in more detail between a takeover point 67, at which it grips a printed product 2, and a delivery point 68, at which the detected product 2 is released, along the movement path designated by 70.
  • the suction head 66 is connected to a vacuum source as described earlier and lifts the uppermost printed product 2 from the intermediate stack 29 and pushes it back against the conveying direction A in the direction of arrow E against the conveying device 32.
  • a guide element 71 is provided on the edge of the intermediate stack 29 opposite the stop 11, which guides the edge 2b leading when the printed products 2 move back diverted upwards into the mentioned funding area F.
  • the suction head 66 is fastened to a tubular support arm 72 which is connected via a hose line to a vacuum source, not shown.
  • This support arm 72 is connected to a drive 73 which has a lever 75 with which the support arm 72 is fixedly connected.
  • This lever 75 is connected at both ends via joints 76 and 77 to other levers.
  • the joint 76 the axis of which is designated 76 '
  • the lever 75 is connected to a lever 78 which is fixed in terms of rotation on a shaft 79 with the axis 79', which is pivotably mounted in a bearing 80.
  • Via the other joint 77 with the axis 77 ' the lever 75 is connected to a further lever 81, which is pivotably mounted in a bearing 82.
  • the two-armed lever 81 is connected at the other end via a further joint 83 to the coupling 84 of a crank drive, which is connected to a crank 86 via a joint 85.
  • the latter sits on a shaft 87 with the axis 87 ', which is mounted in a bearing 88 and is connected to a drive, not shown.
  • the crank 86 rotates in the direction of the arrow K.
  • the connecting joint 85 between the crank 86 and the coupling 84 runs along a circular path 89.
  • the lever 81 performs a pivoting movement about the axis 82 'of its bearing 82.
  • the Both end positions of the lever 81 are shown on the one hand with a solid line and on the other hand with a dash-dotted line.
  • the two joints 77 and 83 of the lever 81 move back and forth along the tracks 90 and 91 between points I and II.
  • the lever 78 swings from the position shown with a solid line to the position 78a shown in broken lines and back again, the joint 76 moving back and forth along the path 92 between points I 'and II'.
  • a variant is indicated with dash-dotted lines, comparable to FIG. 1, in which the belt conveyor 3 'conveys the scale formation S' in a direction A 'to the stacking point 28, which is opposite to the conveying direction A of the belt conveyor 3.
  • This variant is used when the folded edge 2a in the supplied scale formation S 'is the trailing, upper edge.
  • the stop 11 and the conveying roller 13 the guide member 71 and the height monitoring arrangement 31 must be exchanged.
  • the apron conveyor 4 must be pivotally mounted about the axis 7a of the deflection roller 7. In contrast, nothing needs to be changed on the suction arrangement 65.
  • FIG. 10 shows a third embodiment of the device according to the invention, which is very similar to the embodiment according to FIG. 6 and differs from it only in a different design of the second conveying device.
  • the conveyor device 93 is formed by two belt conveyors 94 and 95 arranged one above the other, which form a conveyor gap 96 between them.
  • the conveying direction of the conveying device 93 is denoted by L.
  • the uppermost printed product 2 in the intermediate stack 29 is somewhat lifted from the stack 29 by the suction arrangement 65, as described in connection with FIGS. 6-9, and pushed back in the direction of the arrow E.
  • the leading, open edge 2b of the printed products 2 is deflected by the guide member 71 into the inlet 96a of the conveyor gap 96.
  • the printed products 2 are conveyed away again by the conveying device 93 in a scale formation S 1, in which each printed product 2 rests on the subsequent printed product.
  • the leading edge 2 b is formed by the edge which formed the trailing edge in the shingled stream S supplied.
  • the apron conveyor can 4 run approximately horizontally (as shown in FIG. 1) or, as shown in FIGS. 6 and 10, are inclined sloping in the conveying direction.

Landscapes

  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Discharge By Other Means (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Stringed Musical Instruments (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Making Paper Articles (AREA)
  • Coloring (AREA)

Abstract

By a first conveying device printing products are fed in an imbricated formation (S), in which each printing product rests on the following one, the fold edge of the folded products forming the trailing edge. The printing products are pushed into an intermediate stack from below. The respectively uppermost product of this intermediate stack is seized in the region of the fold edge by at least one sucker of a sucker arrangement, raised upward and brought into the conveying region (F) of a second conveying device. The latter has individually controllable grippers which are arranged at regular intervals, circulate along a closed path, seize the fold edges delivered by the sucker arrangement and convey away the printing products thus seized. By forming an intermediate stack, from which the printing products are then raised by the sucker arrangement at the desired rate and fed to the grippers, even imbricated formations (S) occurring with irregularities can be processed satisfactorily.

Description

Die vorliegende Erfindung betrifft ein Verfahren bzw. eine Vorrichtung zum Zubringen von vorzugsweise gefalteten Druckereierzeugnissen zu einer Weiterverarbeitungsstelle gemäss Oberbegriff des Anspruches 1 bzw. des Anspruches 5.The present invention relates to a method and a device for feeding preferably folded printed products to a further processing point according to the preamble of claim 1 and claim 5.

Bei der in der CH-A-630 583 und der entsprechenden US-A-4,320,894 beschriebenen Vorrichtung dieser Art werden die zugeführten Druckereierzeugnisse im Uebergabebereich durch den Zuförderer direkt in die vorbeilaufenden offenen Greifer des Wegförderers eingeschoben. Um ein richtiges Erfassen der Druckereierzeugnisse sicherzustellen, verläuft im Uebergabebereich der Druckereierzeugnisse die Förderrichtung des Wegförderers von unten nach oben und quer zur Förderrichtung der zugeführten Druckereierzeugnisse. Durch diese Massnahme können zwar geringfügige Unregelmässigkeiten in den Abständen aufeinanderfolgender Druckereierzeugnisse im Schuppenstrom aufgefangen werden, doch führt ein zu grosser Abstand zwischen zwei Druckereierzeugnissen innerhalb der zugeführten Schuppenformation dazu, dass gewisse Produkte zu spät zum Uebergabebereich gelangen und damit den zugeordneten Greifer verpassen, der dann leer zur Weiterverarbeitungsstelle gelangt. Der nachfolgende Greifer nimmt dann neben dem ihm zugeordneten Druckereierzeugnis auch noch dasjenige Erzeugnis mit, das vom vorauslaufenden Greifer nicht hat mitgenommen werden können. Es ist somit offensichtlich, dass sich ein solcher unregelmässiger Anfall von Druckereierzeugnissen an der nachgeschalteten Weiterverarbeitungsstelle nachteilig auswirken kann.In the device of this type described in CH-A-630 583 and the corresponding US-A-4,320,894, the supplied printed products in the transfer area are inserted directly into the passing open grippers of the conveyor by the feed conveyor. In order to ensure that the printed products are correctly grasped, in the transfer area of the printed products the conveying direction of the conveyer runs from bottom to top and transversely to the conveying direction of the supplied printed products. Although this measure can compensate for slight irregularities in the spacing between successive printed products in the shingle stream, too great a distance between two printed products within the supplied shingle formation means that certain products arrive too late in the transfer area and thus miss the assigned gripper, which is then empty reached the processing center. The subsequent gripper then takes along with the print product assigned to it also the product that could not be taken away by the preceding gripper. It is therefore obvious that such an irregular accumulation of printed matter occurs at the downstream processing point can have an adverse effect.

Aus der EP-A-0 368 009 (und der entsprechenden US-A-5,042,792) ist es weiter bekannt, Druckereierzeugnisse, die paarweise übereinanderliegend in einer Schuppenformation zugefördert werden, in der jedes Erzeugnispaar auf dem nachfolgenden Erzeugnispaar aufliegt, gegen einen Anschlag zu fördern, dann im Bereich der vorlaufenden Kante durch ein Saugorgan zu erfassen und anzuheben, um das entsprechende Druckereierzeungis in den Wirkbereich von umlaufenden Mitnehmerelementen zu bringen, die die vorlaufenden Kanten der Druckereierzeugnisse weiter in den Förderbereich eines Wegförderers anheben, der aus zwei zusammenwirkenden Bandförderern gebildet ist. Mit dieser bekannten Vorrichtung lassen sich die in der zugeführten Schuppenformation übereinanderliegenden Druckereierzeugnisse voneinander ablösen und zu einer neuen Schuppenformation formieren, in der sich alle Erzeugnisse nur teilweise überlappen und sich nicht mehr vollständig überdecken.From EP-A-0 368 009 (and the corresponding US-A-5,042,792) it is further known to convey printed products which are fed in pairs one above the other in a scale formation in which each pair of products rests on the subsequent pair of products against a stop , then to be grasped and raised in the area of the leading edge by a suction element in order to bring the corresponding printed product into the effective area of rotating driver elements which raise the leading edges of the printed products further into the conveying area of a conveyor which is formed from two interacting belt conveyors. With this known device, the printed products lying one above the other in the supplied scale formation can be detached from one another and formed into a new scale formation in which all products only partially overlap and no longer completely overlap.

Doch ist es auch bei dieser Vorrichtung wichtig, dass die Pakete von Druckereierzeugnissen in der zugeführten Schuppenformation im wesentlichen gleiche Abstände voneinander haben, damit ein ungestörtes Separieren der sich vollständig überdeckenden Druckereierzeugnisse möglich ist.However, it is also important with this device that the packages of printed products in the supplied scale formation have essentially the same distances from one another, so that an undisturbed separation of the completely overlapping printed products is possible.

Aus der GB-A-2,205,819 und der GB-A-1,036,346 sind Vorrichtungen zum Speisen von Druckern mit einzelnen, unbedruckten Erzeugnissen bekannt. Diese Erzeugnisse werden in einem ersten Schritt periodisch von einem benachbart zum Drucker angeordneten Stapel abgezogen (GB-A-2,205,819) oder durch periodisches Abtrennen von einer zum Drucker benachbarten Papierrolle hergestellt (GB-1,036,346) und dann zu einer Schuppenformation aufeinandergelegt, in der jedes Erzeugnis auf dem vorauslaufenden Erzeugnis aufliegt. Diese Schuppenformation, in der die Abstände zwischen aufeinanderfolgenden Erzeugnissen etwa gleich sind, wird um eine Umlenktrommel herumgeführt und dann gegen einen eine Stapelstelle festlegenden Anschlag gefördert. An dieser Stapelstelle wird auf einem feststehenden Tisch ein Zwischenstapel gegebener, im wesentlichen gleichbleibender Höhe gebildet, von dessen Oberseite die Erzeugnisse mittels eines Saugmechanismus abgehoben und einzeln direkt dem Einzug des Druckers zugeführt werden.From GB-A-2,205,819 and GB-A-1,036,346 devices for feeding printers with individual, unprinted products are known. In a first step, these products are peeled periodically from a stack adjacent to the printer (GB-A-2,205,819) or periodically separated from a roll of paper adjacent to the printer (GB-1,036,346) and then stacked in a scale formation in which each product rests on the leading product. This scale formation, in which the distances between successive products are approximately the same, is guided around a deflection drum and then conveyed against a stop defining a stacking point. At this stacking point, an intermediate stack of a given, essentially constant height is formed on a fixed table, from the top of which the products are lifted off by means of a suction mechanism and individually fed directly to the feed of the printer.

Der vorliegenden Erfindung liegt nun die Aufgabe zugrunde, ein Verfahren sowie eine Vorrichtung der eingangs genannten Art zu schaffen, das bzw. die es erlaubt, die Druckereierzeugnisse mit möglichst geringem konstruktivem Aufwand unabhängig von der Qualität der zugeführten Schuppenformaton in der gewünschten Folge einer Weiterverarbeitungsstelle zuzuführen.The present invention is based on the object of creating a method and a device of the type mentioned at the outset which allow the printed products to be fed to a further processing point in the desired sequence with the least possible design outlay, regardless of the quality of the shed format supplied.

Diese Aufgabe wird erfindungsgemäss durch die Merkmale des kennzeichnenden Teils des Anspruches 1 bzw. des Anspruches 6 gelöst.This object is achieved according to the invention by the features of the characterizing part of claim 1 and of claim 6.

Dadurch, dass die zugeführten Druckereierzeugnisse zuerst in einen Zwischenstapel eingeschoben werden, dem sie durch die Saugeranordnung von oben entnommen und der zweiten Fördereinrichtung zugeführt werden, wird die Zuführung der Druckereierzeugnisse zur zweiten Fördereinrichtung von der Zufuhr der Druckereierzeugnisse durch die erste Fördereinrichtung entkoppelt. Dies bedeutet, dass zu grosse oder zu kleine Abstände zwischen aufeinanderfolgenden Druckereierzeugnissen und auch fehlende Druckereierzeugnisse im zugeführten Schuppenstrom die richtige Zuführung von Druckereierzeugnissen zur zweiten Fördereinrichtung nicht mehr beeinflussen. Derartige Unregelmässigkeiten in der anfallenden Schuppenformation werden durch den Zwischenstapel ausgeglichen. Dabei ändert sich die Höhe des Zwischenstapels. Dessen Oberseite wird aber durch Anheben und Absenken immer auf demselben Niveau gehalten. Dies erlaubt eine Konstruktiv einfache Ausgestaltung der Saugeranordnung, da die Uebernahme der Erzeugnisse vom Zwischenstapel immer auf derselben Höhe erfolgt.The fact that the supplied printed products are first inserted into an intermediate stack, from which they are removed from above by the suction arrangement and fed to the second conveying device, the supply of the Printed products to the second conveyor are decoupled from the supply of the printed products by the first conveyor. This means that too large or too small distances between successive printed products and also missing printed products in the shingled stream supplied no longer influence the correct supply of printed products to the second conveyor device. Such irregularities in the resulting scale formation are compensated for by the intermediate stack. The height of the intermediate stack changes. However, the upper side is always kept at the same level by lifting and lowering. This allows a structurally simple design of the suction arrangement, since the products are always taken over from the intermediate stack at the same height.

Daneben ist es auch möglich, bei Bedarf die Zufuhr von Druckereierzeugnissen zur zweiten Fördereinrichtung durch Wegschalten der Saugeranordnung zeitweilig zu unterbinden, ohne dass die Zulieferung von Druckereierzeugnissen durch die erste Fördereinrichtung unterbrochen werden muss.In addition, it is also possible, if necessary, to temporarily prevent the supply of printed products to the second conveyor by switching off the suction arrangement without the supply of printed products having to be interrupted by the first conveyor.

Bevorzugte Weiterausgestaltungen des erfindungsgemässen Verfahrens bzw. der erfindungsgemässen Vorrichtung sind in den abhängigen Ansprüchen umschrieben.Preferred further developments of the method according to the invention and the device according to the invention are described in the dependent claims.

Im folgenden werden Ausführungsbeispiele des Erfindungsgegenstandes anhand der Zeichnung näher erläutert. Es zeigt rein schematisch:

Figur 1:
eine erste Ausführungsform einer erfindungsgemässen Vorrichtung in Seitenansicht,
Figur 2:
in gegenüber der Fig. 1 vergrössertem Massstab die Vorrichtung gemäss Fig. 1 teilweise im Querschnitt und zum Teil in Ansicht,
Figur 3:
einen den Bereich des Zwischenstapels der Vorrichtung nach Fig. 1 in vergrössertem Massstab und in Seitenansicht darstellenden Ausschnitt aus Fig. 1,
Figur 4:
in Seitenansicht den Antriebsmechanismus für die Saugeranordnung der Vorrichtung gemäss den Figuren 1-3,
Figur 5:
den Antriebsmechanismus gemäss Fig. 4 im Querschnitt,
Figur 6:
in Seitenansicht eine zweite Ausführungsform der erfindungsgemässen Vorrichtung,
Figur 7:
die Antriebsvorrichtung für die Saugeranordnung der Vorrichtung gemäss Fig. 6 in Seitenansicht,
Figur 8:
den Antriebsmechanismus gemäss Figur 7 im Querschnitt,
Figur 9:
den Bewegungsablauf eines Saugkopfes der Saugeranordnung gemäss den Figuren 6-8 anhand einer ganz schematischen Darstellung des Antriebsmechanismus, und
Figur 10:
eine dritte Ausführungsform der erfindungsgemässen Vorrichtung in Seitenansicht.
Exemplary embodiments of the subject matter of the invention are explained in more detail below with reference to the drawing. It shows purely schematically:
Figure 1:
a first embodiment of a device according to the invention in side view,
Figure 2:
1 on an enlarged scale, the device according to FIG. 1 partly in cross section and partly in view,
Figure 3:
1 on an enlarged scale and in a side view, a section of the area of the intermediate stack of the device according to FIG. 1,
Figure 4:
in side view the drive mechanism for the suction arrangement of the device according to Figures 1-3,
Figure 5:
4 in cross section,
Figure 6:
a side view of a second embodiment of the device according to the invention,
Figure 7:
6 shows a side view of the drive device for the suction arrangement of the device according to FIG. 6,
Figure 8:
the drive mechanism according to Figure 7 in cross section,
Figure 9:
the movement of a suction head of the suction arrangement according to Figures 6-8 based on a very schematic representation of the drive mechanism, and
Figure 10:
a third embodiment of the device according to the invention in side view.

Anhand der Figuren 1-3 wird nun eine erste Ausführungsform einer erfindungsgemässen Vorrichtung beschrieben. Diese Vorrichtung weist eine erste Fördereinrichtung 1 auf, welche gefaltete Druckereierzeugnisse 2 in einer Schuppenformation S zubringt. Dabei liegt in dieser Schuppenformation S jedes Druckereierzeugnis auf dem nachfolgenden Erzeugnis 2 auf. Dies bedeutet, dass in Förderrichtung A der Fördereinrichtung 1 gesehen, die nachlaufende Kante 2a der Druckereierzeugnisse 2 in der Schuppenformation S oben liegt. Beim in den Figuren 1-3 gezeigten Ausführungsbeispiel wird diese nachlaufende Kante der gefalteten Druckereierzeugnisse 2 durch die Falzkante 2a gebildet. Die dieser Falzkante 2a gegenüberliegende offene Seitenkante 2b bildet dementsprechend die Vorlaufkante.A first embodiment of a device according to the invention will now be described with reference to FIGS. 1-3. This device has a first conveyor device 1, which delivers folded printed products 2 in a scale formation S. In this scale formation S, each printed product rests on the subsequent product 2. This means that seen in the conveying direction A of the conveying device 1, the trailing edge 2a of the printed products 2 lies in the scale formation S at the top. In the exemplary embodiment shown in FIGS. 1-3, this trailing edge of the folded printed products 2 is formed by the folded edge 2a. The open side edge 2b opposite this fold edge 2a accordingly forms the leading edge.

Die Fördereinrichtung 1 weist einen Bandförderer 3 sowie einen diesem nachgeschalteten Riemchenförderer 4 auf. Der Riemchenförderer 4 wird durch eine Anzahl von parallel zueinander und einem Abstand voneinander verlaufenden Rundriemchen 5 (Fig. 2) gebildet, die über Umlenkwalzen 6 und 7 geführt sind, von denen die eine Umlenkwalze angetrieben ist. Der Bandförderer 3 und der Riemchenförderer 4 können dieselbe oder unterschiedliche Fördergeschwindigkeit haben. Die Umlenkwalzen 6, 7 sind in zwei parallel zueinander laufenden Armen 8, 9 (Fig. 2) drehbar gelagert. Der Riemchenförderer 4 ist als um die Achse 6' der Umlenkwalze 6 schwenkbare, Wippe ausgebildet und ist auf einer in Fig. 1 nur schematisch dargestellten Kolben-Zylinder-Einheit 10 abgestützt. Mittels letzterer wird auf noch zu beschreibende Weise die Schwenklage des Riemchenförderers 4 eingestellt.The conveyor device 1 has a belt conveyor 3 and an apron conveyor 4 connected downstream of this. The apron conveyor 4 is formed by a number of round aprons 5 (FIG. 2) which run parallel to one another and at a distance from one another and are guided over deflection rollers 6 and 7, of which one deflection roller is driven. The belt conveyor 3 and the apron conveyor 4 can have the same or different conveying speeds. The deflecting rollers 6, 7 are rotatably mounted in two arms 8, 9 (FIG. 2) running parallel to one another. The apron conveyor 4 is designed as a rocker which can be pivoted about the axis 6 'of the deflection roller 6 and is supported on a piston-cylinder unit 10 which is only shown schematically in FIG. 1. By means of the latter, the pivoting position of the apron conveyor 4 is set in a manner to be described.

Oberhalb und im Endbereich des Riemchenförderers 4 ist ein Anschlag 11 angeordnet, der eine Anzahl von Anschlagfingern 12 (Fig. 2) aufweist, die in einem Abstand voneinander angeordnet sind und sich jeweils zwischen zwei Rundriemchen 5 hindurch erstrecken. In Förderrichtung A gesehen ist vor dem Anschlag 11 eine Förderwalze 13 vorgesehen, welche sich quer zur Förderrichtung A erstreckt und auf der Schuppenformation S aufliegt. Diese Förderwalze 13 ist beiderends je in einem Arm 14 bzw. 15 mittels Lagern 16, 17 (Fig. 2) drehbar gelagert. Die Arme 14, 15 sind ihrerseits am andern Ende auf einer Welle 18 gelagert, und zwar mittels Pendellagern 19, 20. Die Welle 18 durchsetzt die Arme 14, 15 des Riemchenförderers 4 und ist in Lagerteilen 21, 22 gelagert, welche an den Armen 14 bzw. 15 angebracht sind (Fig. 2). Die Lagerung der Welle 18 erfolgt über Lager 23 und 24. Am einen Ende der Welle 18 sitzt auf dieser ein Zahnrad 25, das über eine Antriebskette 26 von einem nicht gezeigten Antrieb angetrieben wird. Dieses Zahnrad 25 kämmt mit einem Zahnrad 27, das fest auf einem Fortsatz 13a der Förderwalze 13 sitzt. Ueber die Kette 26 und die Zahnräder 25, 27 wird somit die Förderwalze 13 in Richtung des Pfeiles T (Fig. 3) umlaufend angetrieben. Die auf die Druckereierzeugnisse 2 eine Förderwirkung ausübende Förderwalze 13 kann sich dank ihrer pendelnden Lagerung an die sich ändernde Höhe der Schuppenformation S anpassen. Da die beiden Lagerarme 14, 15 für die Förderwalze 13 wie beschrieben unabhängig voneinander pendelnd gelagert sind, kann sich die Förderwalze 13 auch anpassen, wenn in der Schuppenformation S Dickenunterschiede in einer quer zur Förderrichtung A verlaufenden Richtung auftreten.Above and in the end region of the apron conveyor 4 there is a stop 11 which has a number of stop fingers 12 (FIG. 2) which are arranged at a distance from one another and each extend between two round aprons 5. Viewed in the conveying direction A, a conveyor roller 13 is provided in front of the stop 11, which extends transversely to the conveying direction A and rests on the scale formation S. This conveyor roller 13 is rotatably supported on both ends in an arm 14 or 15 by means of bearings 16, 17 (FIG. 2). The arms 14, 15 are in turn mounted on a shaft 18 at the other end, by means of self-aligning bearings 19, 20. The shaft 18 passes through the arms 14, 15 of the strappy conveyor 4 and is supported in bearing parts 21, 22 which are attached to the arms 14 or 15 are attached (Fig. 2). The shaft 18 is supported by bearings 23 and 24. At one end of the shaft 18 there is a gearwheel 25 which is driven by a drive, not shown, via a drive chain 26. This gear 25 meshes with a gear 27 which is firmly seated on an extension 13a of the conveyor roller 13. Via the chain 26 and the gears 25, 27, the conveyor roller 13 is thus driven in a rotating manner in the direction of the arrow T (FIG. 3). The conveyor roller 13 which exerts a conveying effect on the printed products 2 can adapt to the changing height of the scale formation S thanks to its oscillating mounting. Since the two bearing arms 14, 15 for the conveying roller 13 are pivoted independently of one another, as described, the conveying roller 13 can also adapt if differences in thickness occur in the scale formation S in a direction transverse to the conveying direction A.

Zwischen der Förderwalze 13 und dem Anschlag 11 wird eine Stapelstelle 28 festgelegt, an der die Druckereierzeugnisse 2 zu einem Zwischenstapel 29 aufgeschichtet werden. Im Bereich dieses Zwischenstapels 29 ist ein unterhalb der Rundriemchen 5 angeordnetes Stützblech 30 (Fig. 2) angeordnet, durch welches verhindert wird, dass sich die Rundriemchen 5 unter dem Gewicht des Zwischenstapels 29 durchbiegen können.A stacking point 28 is defined between the conveyor roller 13 and the stop 11, at which the printed products 2 are stacked to form an intermediate stack 29. In the area of this intermediate stack 29, a support plate 30 (FIG. 2) is arranged below the round apron 5, by means of which it is prevented that the round aprons 5 can bend under the weight of the intermediate stack 29.

Wie aus den Figuren 1-3 hervorgeht, werden die Druckereierzeugnisse 2 durch den Riemchenförderer 4 von unten in den Zwischenstapel 29 eingeschoben. Die angetriebene Förderwalze 13 unterstützt dabei das Einschieben der Druckereierzeugnisse 2 in den Zwischenstapel 29. Durch den Anschlag 11 wird die Vorschubbewegung der Druckererzeugnisse 2 gebremst.As can be seen from FIGS. 1-3, the printed products 2 are pushed into the intermediate stack 29 from below by the apron conveyor 4. The driven conveyor roller 13 supports the insertion of the printed products 2 into the intermediate stack 29. The stop 11 slows the feed movement of the printed products 2.

Mit 31 (Fig. 1) ist rein schematisch eine Höhenüberwachungsanordnung dargestellt, die z. B. als Lichtschranke ausgebildet werden kann. Diese Höhenüberwachungsanordnung 31 ist mit einer nicht dargestellten Steueranordnung verbunden, welche die Zylinder-Kolben-Einheit 10 und damit die Schwenklage des Riemchenförderers 4 steuert. Mittels dieser Höhenüberwachungsanordnung 31 wird dafür gesorgt, dass die Oberseite 29a des Zwischenstapels 29 sich immer etwa auf dem gleichen Niveau H befindet. Dies wird dadurch erreicht, dass bei sich ändernder Höhe des Zwischenstapels 29 der Riemchenförderer 4 mittels der Kolben-Zylinder-Einheit 10 nach oben oder nach unten verschwenkt wird, um die Stapeloberseite 29a auf der gewünschten Höhe H zu halten.With 31 (Fig. 1) a height monitoring arrangement is shown purely schematically, the z. B. can be designed as a light barrier. This height monitoring arrangement 31 is connected to a control arrangement, not shown, which controls the cylinder-piston unit 10 and thus the swivel position of the apron conveyor 4. This height monitoring arrangement 31 ensures that the upper side 29a of the intermediate stack 29 is always at approximately the same level H. This is achieved in that when the height of the intermediate stack 29 changes, the apron conveyor 4 is pivoted upwards or downwards by means of the piston-cylinder unit 10 in order to keep the stack top 29a at the desired height H.

Oberhalb des Riemchenförderers 4 ist eine zweite Fördereinrichtung 32 angeordnet, welche einzeln steuerbare Greifer 33 aufweist, die in regelmässigen Abständen an einer nicht gezeigten, endlos umlaufenden Kette befestigt sind, die in einem Kettenkanal 34 geführt ist. Die Kette und damit auch die Greifer 33 laufen in Richtung des Pfeiles B (Fig. 1) um. Jeder Greifer 33 besitzt ein an der Kette befestigtes Tragelement 35, an dem schwenkbar eine Klemmplatte 36 und zwei mit dieser zusammenwirkende Klemmfinger 37 gelagert sind. Wie Fig. 2 zeigt, stehen die beiden in einem Abstand voneinander angeordneten Klemmfinger 37 unter der Wirkung einer Schliessfeder 38, die den Klemmfinger 37 gegen die Klemmplatte 36 drückt und damit den Greifer 33 geschlossen hält. Die beiden Schliessfedern 38 sind auf einem Bolzen 39 angeordnet, der im Tragelement 35 gelagert ist und um dessen Längsachse die Klemmplatte 36 zusammen mit den zugeordneten Klemmfingern 37 frei schwenkbar ist. Mit jedem Klemmfinger 37 ist ein Steuerarm 40 verbunden, der an seinem Ende eine Steuerrolle 41 trägt. Die Klemmplatten 36 sind mit einem in Förderrichtung B gesehen nach hinten weisenden Ansatz 36a versehen, der dazu bestimmt ist, mit einer Positionierkulisse 42 zusammenzuwirken. Beim Auflaufen des Ansatzes 36a auf die Positionierkulisse 42 werden die Klemmplatte 36 und mit dieser die Klemmfinger 37 in eine bestimmte Position gebracht, in der die Greifer 33 auch geöffnet werden können. Zu diesem Zwecke dient eine Oeffnungskulisse 43, die mit der Steuerrolle 41 zusammenwirkt und ein Abheben der Klemmfinger 37 entgegen der Kraft der Schliessfedern 38 von der Klemmplatte 36 bewirkt.Above the apron conveyor 4 there is a second conveyor device 32 which has individually controllable grippers 33, which are attached at regular intervals to an endless chain, not shown, which is guided in a chain channel 34. The chain and thus also the grippers 33 rotate in the direction of arrow B (FIG. 1). Each gripper 33 has a support element 35 fastened to the chain, on which a clamping plate 36 and two clamping fingers 37 cooperating therewith are pivotably mounted. As shown in FIG. 2, the two clamping fingers 37 arranged at a distance from one another are under the action of a closing spring 38 which presses the clamping finger 37 against the clamping plate 36 and thus keeps the gripper 33 closed. The two closing springs 38 are arranged on a bolt 39 which is mounted in the support element 35 and about the longitudinal axis of which the clamping plate 36 can be freely pivoted together with the associated clamping fingers 37. A control arm 40 is connected to each clamping finger 37 and carries a control roller 41 at its end. The clamping plates 36 are provided with a shoulder 36a, which is directed backwards in the conveying direction B and is intended to interact with a positioning link 42. When the extension 36a runs onto the positioning link 42, the clamping plate 36 and with it the clamping fingers 37 are brought into a specific position in which the grippers 33 can also be opened. For this purpose, an opening link 43 is used, which cooperates with the control roller 41 and causes the clamping fingers 37 to be lifted off the clamping plate 36 against the force of the closing springs 38.

Um die Druckereierzeugnisse 2 vom Zwischenstapel 29 in den Förderbereich F der Fördereinrichtung 32, d.h. in die Bewegungsbahn der geöffneten Greifer 33 zu bringen, ist eine ganz allgemein mit 44 bezeichnete Saugeranordnung vorgesehen. Diese weist zwei in einem Abstand voneinander angeordnete Saugköpfe 45 und 46 auf (Fig. 2), von denen jeder an einem rohrförmigen Tragarm 47 befestigt ist. An jedem Tragarm ist ein Verbindungsschlauch 48 angeschlossen, der mit einer nicht dargestellten Unterdruckquelle verbunden ist, die periodisch zu- und wegschaltbar ist. Jeder Tragarm 47 ist weiter mit einem in Fig. 2 nur teilweise dargestellten Antrieb 49 verbunden, der anhand der Figuren 4 und 5 noch näher erläutert werden wird. Durch diesen Antrieb 49 werden die Saugköpfe 45, 46 entlang einer geschlossenen, etwa birnenförmigen Umlaufbahn 50 bewegt. Wie die Fig. 2 zeigt, verlaufen diese Umlaufbahnen 50 seitlich der Fördereinrichtung 32. Jede Umlaufbahn 50 verläuft von einer Uebernahmestelle 51, die sich auf der Stapeloberseite 29a im Bereich der nachlaufenden Falzkante 2a der Druckereierzeugnisse 2 befindet, aufwärts zu einer Abgabestelle 52 und dann weiter nach oben und schleifenförmig wieder zurück zur Uebernanmestelle 51. Während der Bewegung der Saugköpfe 45, 46 von der Uebernahmestelle 51 zur Abgabestelle 52 werden die Saugköpfe 45, 46 an die Unterdruckquelle angeschlossen. Dies bedeutet, dass das jeweils oberste Druckereierzeugnis 2' im Zwischenstapel 29 im Bereich des Falzes 2a von den Saugköpfen 45, 46 erfasst und nach oben in den Förderbereich F der Fördereinrichtung 32 mitgenommen wird. Die von den Saugköpfen 45, 46 nach oben abgehobenen Falzkanten 2a der Druckereierzeugnisse 2 werden somit in die Bewegungsbahn jeweils eines offenen Greifers 33 gebracht und gelangen zwischen dessen Klemmplatte 36 und die von dieser abgehobenen Klemmfinger 37. Um dieses Einbringen der Falzkantenbereiche der Druckereierzeugnisse 2 in die offenen Greifer 33 zu ermöglichen, werden die Greifer 33 mittels der Positionierkulisse 42 in die geeignete Schwenklage gebracht. Wie insbesondere aus Fig. 3 ersichtlich ist, werden die Klemmplatte 36 mit den Klemmfingern 37 mittels der Positionierkulisse 42 während der Uebernahme der Druckereiprodukte 2 verschwenkt, damit ein einwandfreies Erfassen der Druckereierzeugisse 2 im Bereich ihres Falzes 2a durch die Greifer 33 sichergestellt wird.In order to bring the printed products 2 from the intermediate stack 29 into the conveying area F of the conveying device 32, ie into the movement path of the opened grippers 33, a suction device arrangement, generally designated 44, is provided. This has two suction heads 45 and 46 arranged at a distance from one another (FIG. 2), each of which is fastened to a tubular support arm 47. A connecting hose 48 is connected to each support arm and is connected to a vacuum source, not shown, which can be switched on and off periodically. Each support arm 47 is further connected to a drive 49 only partially shown in FIG. 2, which will be explained in more detail with reference to FIGS. 4 and 5. By means of this drive 49, the suction heads 45, 46 are moved along a closed, approximately pear-shaped orbit 50. As shown in FIG. 2, these orbits 50 run to the side of the conveyor 32. Each orbit 50 runs upwards from a takeover point 51, which is located on the top of the stack 29a in the area of the trailing fold edge 2a of the printed products 2, to a delivery point 52 and then on upwards and in a loop back to the transfer point 51. During the movement of the suction heads 45, 46 from the transfer point 51 to the delivery point 52, the suction heads 45, 46 are connected to the vacuum source. This means that the uppermost printed product 2 'in the intermediate stack 29 in the area of the fold 2a is gripped by the suction heads 45, 46 and taken upwards into the conveying area F of the conveying device 32. The folded edges 2a of the printed products 2, which are lifted upwards by the suction heads 45, 46, are thus brought into the path of movement of an open gripper 33 and pass between its clamping plate 36 and the clamping fingers 37 lifted off the latter. In order to introduce the folded edge regions of the printed products 2 into the To enable open grippers 33, the grippers 33 are brought into the suitable pivot position by means of the positioning link 42. How especially out 3 can be seen, the clamping plate 36 with the clamping fingers 37 are pivoted by means of the positioning link 42 during the takeover of the printed products 2, so that a correct gripping of the printed products 2 in the area of their fold 2a is ensured by the grippers 33.

Da die beiden Saugköpfe 45 und 46 durch voneinander getrennte Antriebe angetrieben werden, ist es möglich, die beiden Saugköpfe 45, 46 nicht nur synchron miteinander zu bewegen, sondern auch abwechselnd im Gegentakt. Bei einer solchen Lösung würde dann ein Druckereierzeugnis jeweils nur durch einen Saugkopf 45 oder 46 erfasst und transportiert werden. Jeder Saugkopf 45, 46 hat dann nur jedes zweite Druckereierzeugnis 2 zu erfassen.Since the two suction heads 45 and 46 are driven by separate drives, it is possible not only to move the two suction heads 45, 46 synchronously with one another, but also alternately in push-pull. In such a solution, a printed product would then only be detected and transported by a suction head 45 or 46. Each suction head 45, 46 then only has to capture every second printed product 2.

Im folgenden wird nun anhand der Figuren 4 und 5 der Aufbau und die Funktionsweise einer bevorzugten Ausführung des Antriebes 49 für die Saugköpfe 45, 46 beschrieben. Neben dieser dargestellten Ausführungsform ist es selbstverständlich denkbar, diesen Antrieb 49 auch auf andere geeignete Weise auszubilden, um den Saugkopf 45, 46 entlang der birnenförmigen Umlaufbahn 50, die an der Uebernahmestelle 51 eine Spitze bildet, zu bewegen.The structure and the operation of a preferred embodiment of the drive 49 for the suction heads 45, 46 will now be described with reference to FIGS. 4 and 5. In addition to this illustrated embodiment, it is of course conceivable to design this drive 49 in another suitable manner in order to move the suction head 45, 46 along the pear-shaped orbit 50, which forms a tip at the takeover point 51.

Der rohrförmige Tragarm 47, an dem der Saugkopf 45 angebracht ist, ist am einen Arm 53a eines zweiarmigen Hebels 53 befestigt, dessen anderer Arm 53b gegenüber dem Arm 53a abgewinkelt ist. Der Arm 53b bildet die Koppel einer Kurbelschwinge 54 und ist über ein Gelenk 55, dessen Gelenkzapfen mit 55a bezeichnet ist, mit einer Kurbel 56 verbunden. Letztere sitzt auf einer in Richtung des Pfeiles D umlaufend angetriebenen Welle 57, die in einem Lager 58 drehbar gelagert ist. Die Welle 57, deren Längsachse mit 57' bezeichnet ist, wird von einer nicht gezeigten Antriebseinrichtung angetrieben. Am anderen Ende ist der Arm 53b des Hebels 53 über ein Gelenk 59, dessen Gelenkzapfen mit 59a bezeichnet ist, mit einer Schwinge 60 verbunden. Letztere ist auf einer Welle 61 befestigt, die frei drehbar in einem Lager 62 gelagert ist. Die Längsachse dieser Welle 61 ist mit 61' bezeichnet.The tubular support arm 47, to which the suction head 45 is attached, is attached to one arm 53a of a two-armed lever 53, the other arm 53b of which is angled relative to the arm 53a. The arm 53b forms the coupling of a crank rocker 54 and is connected to a crank 56 via a joint 55, the joint pin of which is designated 55a. The latter is seated on a shaft 57 which is driven in the direction of arrow D and rotates in a bearing 58 is rotatably mounted. The shaft 57, the longitudinal axis of which is designated 57 ', is driven by a drive device, not shown. At the other end, the arm 53b of the lever 53 is connected to a rocker arm 60 via a hinge 59, the hinge pin of which is designated 59a. The latter is attached to a shaft 61 which is freely rotatably mounted in a bearing 62. The longitudinal axis of this shaft 61 is designated 61 '.

Die Schwinge 60 wird bei sich drehender Kurbel 56 zwischen zwei Endstellungen, die in Fig. 4 gestrichelt dargestellt sind und einen Winkel α einschliessen, hin und her verschwenkt. Die beiden Endlagen der Schwinge 60 sind durch die mit 59a' bzw. 59a'' bezeichneten Positionen des Gelenkzapfens 59a bezeichnet. Die diesen Endlagen 59a' und 59a'' zugeordneten Positionen des Gelenkzapfens 55a sind mit 55a' und 55a'' bezeichnet.With the crank 56 rotating, the rocker 60 is pivoted back and forth between two end positions, which are shown in broken lines in FIG. 4 and form an angle α. The two end positions of the rocker arm 60 are designated by the positions of the pivot pin 59a, designated 59a ′ and 59a ″. The positions of the pivot pin 55a assigned to these end positions 59a 'and 59a' 'are designated by 55a' and 55a ''.

Mittels des beschriebenen Hebelantriebs 49 wird nun der Saugkopf 45 von der Uebernahmestelle 51 entlang des Abschnittes 50a der Umlaufbahn 50 nach oben zur Abgabestelle 52 bewegt. Zwischen Uebernahmestelle 51 und Abgabestelle 52 ist der Saugkopf 45, wie bereits erwähnt, mit der Unterdruckquelle verbunden und nimmt ein Druckereierzeugnis 2 mit. Nach dem Wegschalten der Unterdruckquelle wird das Druckereierzeugnis freigegeben. Der Saugkopf 45 wird weiter in Richtung des Pfeiles C entlang der Umlaufbahn 50 bewegt, bis er wieder zur Uebernahmestelle 51 gelangt, wo das nächste Druckereierzeugnis 2 erfasst wird. Es ist offensichtlich, dass die Umlaufbahn 50 derart gewählt ist, dass der Saugkopf 45 nach Freigabe des Druckereierzeugnisses 2 um dieses herumläuft, so dass das Erfassen der Druckereierzeugnisses durch die Greifer 33 durch die Saugkopfbewegung nicht beeinträchtigt wird.By means of the lever drive 49 described, the suction head 45 is now moved upward from the takeover point 51 along the section 50a of the orbit 50 to the delivery point 52. As already mentioned, the suction head 45 is connected to the vacuum source between the take-over point 51 and the delivery point 52 and takes a printed product 2 with it. After switching off the vacuum source, the printed product is released. The suction head 45 is moved further in the direction of arrow C along the orbit 50 until it arrives at the takeover point 51, where the next printed product 2 is detected. It is obvious that the orbit 50 is selected such that the suction head 45 runs around the printed product 2 after it has been released, so that the gripper 33 grips the printed product by the suction head movement is not affected.

Nachfolgend wird nun die Funktionsweise der vorstehend beschriebenen Vorrichtung erläutert, soweit diese sich nicht bereits aus den vorangegangenen Ausführungen ergibt.The mode of operation of the device described above will now be explained below, insofar as this does not already result from the preceding explanations.

Die durch den Bandförderer 3 in Schuppenformation S zugeführten Druckereierzeugnisse 2 werden mit der Falzkante 2a nachlaufend zur Stapelstelle 28 gefördert und an dieser mit Unterstützung der Förderwalze 13 unten in den Zwischenstapel 29 eingeschoben. Das jeweils oberste Druckereierzeugnis 2 im Zwischenstapel 29 wird durch die Saugköpfe 45, 46 im Bereich der Falzkante 2a erfasst und nach oben vom Zwischenstapel 29 abgehoben. Die Falzkante 2a wird in die Bewegungsbahn der offenen Greifer 33 gebracht und zwischen der Klemmplatte 36 und den Klemmfingern 37 festgeklemmt. Das Schliessen der Greifer 33 erfolgt durch die Schliessfedern 38 nach dem Ablaufen der Steuerrolle 41 von der Oeffnungskulisse 43. Die durch die Greifer 33 erfassten Druckereierzeugnisse 2 werden dann noch vollständig vom Zwischenstapel 29 abgehoben und nach oben zu einer nicht dargestellten Weiterverarbeitungsstelle geführt. Die in der zugeführten Schuppenformation S vorlaufende, durch das vorauslaufende Druckereierzeugnis überdeckte offene Seitenkante 2b der Druckereierzeugnisse 2 liegt nach der Uebernahme durch die Fördereinrichtung 32 frei, was bedeutet, dass ein Oeffnen der gefalteten Druckereierzeugnisse möglich ist, während diese durch die Greifer 33 noch gehalten sind.The printed products 2 fed in by the belt conveyor 3 in scale formation S are conveyed with the folded edge 2a to the stacking point 28 and are inserted there at the bottom with the support of the conveying roller 13 into the intermediate stack 29. The uppermost printed product 2 in the intermediate stack 29 is captured by the suction heads 45, 46 in the region of the folded edge 2a and lifted upwards from the intermediate stack 29. The folded edge 2a is brought into the path of movement of the open grippers 33 and clamped between the clamping plate 36 and the clamping fingers 37. The grippers 33 are closed by the closing springs 38 after the control roller 41 has run off the opening link 43. The printed products 2 gripped by the grippers 33 are then completely lifted off the intermediate stack 29 and guided upwards to a further processing point (not shown). The open side edge 2b of the printed products 2 leading in the supplied scale formation S and covered by the leading printed product is exposed after being taken over by the conveyor device 32, which means that the folded printed products can be opened while they are still being held by the grippers 33 .

Dadurch, dass die durch den Bandförderer 3 zugeführten Druckereierzeugnisse 2 nicht direkt den in festen Abständen aufeinanderfolgenden Greifern 33 zugeführt werden, haben allfällige Unregelmässigkeiten im Schuppenabstand, d.h. in den Abständen zwischen aufeinanderfolgenden Druckereierzeugnissen 2 in der Schuppenformation S, sowie fehlende Druckereierzeugnisse 2 in der Schuppenformation S keinen Einfluss auf eine einwandfreie Uebernahme durch die Greifer 33. Solche Unregelmässigkeiten werden durch den Zwischenstapel 29 ausgeglichen. Das phasenrichtige Zuführen der Druckereierzeugnisse 2 zu den Greifern 33 erfolgt mittels der Saugeranordnung 44 und ist somit innerhalb gewisser Grenzen unabhängig von der Zufuhr der Druckereierzeugnisse 2 durch den Bandförderer 3.Because the printed products 2 fed by the belt conveyor 3 are not fed directly to the grippers 33 which follow one another at fixed intervals, Any irregularities in the scale spacing, ie in the intervals between successive printed products 2 in the scale formation S, and missing printed products 2 in the scale formation S have no influence on a perfect takeover by the grippers 33. Such irregularities are compensated for by the intermediate stack 29. The in-phase feeding of the printed products 2 to the grippers 33 takes place by means of the suction arrangement 44 and is therefore within certain limits independent of the supply of the printed products 2 by the belt conveyor 3.

Andererseits ist es selbst bei konstanter Zulieferung von Druckereierzeugnissen 2 durch den Bandförderer 3 problemlos möglich, bei Bedarf auf die Beschickung gewisser Greifer 33 durch ein Druckereierzeugnis 2 zu verzichten. Hierzu genügt es, im geeigneten Zeitpunkt auf das Herstellen einer Verbindung zwischen dem Saugkopf 45, 46 und der Unterdruckquelle zu verzichten, so dass der Saugkopf 45, 46 eine Bewegung entlang der Umlaufbahn 50 macht, ohne dabei ein Erzeugnis 2 mitzunehmen.On the other hand, even with a constant supply of printed products 2 by the belt conveyor 3, it is possible without any problems to dispense with the loading of certain grippers 33 by a printed product 2. For this purpose, it is sufficient to dispense with the establishment of a connection between the suction head 45, 46 and the vacuum source at the appropriate time, so that the suction head 45, 46 makes a movement along the orbit 50 without taking a product 2 with it.

Um auch dickere Druckereierzeugnisse sicher erfassen zu können, ist die Saugeranordnung 44 so ausgebildet, dass die Saugköpfe 45, 46 wie beschrieben im Bereich des Falzes 2a an den Druckereierzeugnissen 2 angreifen.In order to be able to reliably grasp even thicker printed products, the suction arrangement 44 is designed such that the suction heads 45, 46 act on the printed products 2 in the area of the fold 2a as described.

Fällt nun die Schuppenformation S anders als wie in Fig. 1 gezeigt an, d.h. mit dem Falz 2a der Druckereierzeugnisse als vorlaufende, unten liegende Kante, so müsste die Schuppenformation S von der anderen Seite her der Stapelstelle 28 zugeführt werden. Diese Variante ist in Fig. 1 auf der rechten Seite strichpunktiert dargestellt. Der Bandförderer 3' fördert die Schuppenformation S', in der jedes Druckereierzeugnis 2 nach wie vor auf dem nachlaufenden Druckereierzeugnis aufliegt, die vorlaufende Kante jedoch die Falzkante 2a ist, in Richtung des Pfeiles A', die der Förderrichtung A des Bandförderers 3 entgegengesetzt ist. Bei dieser Variante bleibt die Saugeranordnung 44 und die Fördereinrichtung 32 gleich, doch muss der Riemchenförderer 4 statt um die Achse 6' um die Achse 7' der Umlenkwalze 7 schwenkbar gelagert sein. Zudem sind Anschlag 11 und Förderwalze 13 gegeneinander auszutauschen, wie das ja aus Fig. 1 offensichtlich ist. Das Erfassen und Zubringen der Druckereierzeugnisse 2 in den Förderbereich F der Greifer 33 erfolgt bei dieser Variante gleich wie anhand der Fig. 1 bereits beschrieben.If the scale formation S is produced differently than as shown in FIG. 1, ie with the fold 2a of the printed products as the leading edge lying at the bottom, the scale formation S would have to be fed to the stacking point 28 from the other side. This variant is shown in dot-dash lines in FIG. 1 on the right-hand side. Of the Belt conveyor 3 'conveys the scale formation S', in which each printed product 2 still rests on the trailing printed product, but the leading edge is the folded edge 2a, in the direction of arrow A ', which is opposite to the conveying direction A of the belt conveyor 3. In this variant, the suction arrangement 44 and the conveying device 32 remain the same, but the apron conveyor 4 has to be pivoted about the axis 7 'of the deflecting roller 7 instead of about the axis 6'. In addition, stop 11 and conveyor roller 13 are to be exchanged for one another, as is evident from FIG. 1. In this variant, the gripping and feeding of the printed products 2 into the conveying area F of the grippers 33 is the same as already described with reference to FIG. 1.

Die in Fig. 6 gezeigte Ausführungsform ist der Ausführungsform gemäss den Figuren 1-3 sehr ähnlich und unterscheidet sich von letzterer nur durch eine andere Ausgestaltung der Saugeranordnung und des Zubringens der Druckereierzeugnisse 2 ab dem Zwischenstapel 29 zu den Greifern 33. In dieser Figur 6 sind für sich entsprechende Teile dieselben Bezugszeichen benützt wie in den Figuren 1-3.The embodiment shown in FIG. 6 is very similar to the embodiment according to FIGS. 1-3 and differs from the latter only in a different configuration of the suction arrangement and the delivery of the printed products 2 from the intermediate stack 29 to the grippers 33 corresponding parts use the same reference numerals as in FIGS. 1-3.

Die Vorrichtung gemäss Fig. 6 dient dazu, Druckereierzeugnisse 2 zu verarbeiten, die innerhalb der zugeführten Schuppenformation S eine andere Lage einnehmen als in der Schuppenformation S, die der Vorrichtung gemäss den Figuren 1-3 zugeführt wird. Wie aus Fig. 6 ersichtlich ist, liegt in der vom Bandförderer 3 zugeführten Schuppenformation S auch jedes Druckereierzeugnis 2 auf dem nachfolgenden Druckereierzeugnis auf. Doch werden die vorlaufenden und damit verdeckten Kanten der Druckereierzeugnisse 2 im Gegensatz zur in Fig. 1 gezeigten Schuppenformation S durch die Falzkanten 2a gebildet. Dies bedeutet, dass die Druckereierzeugnisse 2 durch die in Fig. 6 mit 65 bezeichnete Saugeranordnung im Bereich ihrer am Anschlag 11 anstehenden Kante 2a erfasst werden müssen. Im Gegensatz zur Ausführungsform gemäss den Figuren 1-3 werden nun aber die Druckereierzeugnisse 2 nicht mit ihrer Falzkante 2a in die Greifer 33 eingebracht, sondern mit ihrer gegenüberliegenden offenen Seitenkante 2b.The device according to FIG. 6 is used to process printed products 2 which assume a different position within the supplied scale formation S than in the scale formation S which is fed to the device according to FIGS. 1-3. As can be seen from FIG. 6, in the scale formation S fed by the belt conveyor 3, each printed product 2 also rests on the subsequent printed product. However, the leading and thus hidden edges of the printed products 2 in contrast to the scale formation S shown in FIG. 1, formed by the folded edges 2a. This means that the printed products 2 must be grasped by the suction arrangement designated 65 in FIG. 6 in the region of their edge 2a abutting the stop 11. In contrast to the embodiment according to FIGS. 1-3, however, the printed products 2 are not introduced into the grippers 33 with their folded edge 2a, but with their opposite open side edge 2b.

Die Saugeranordnung 65 weist gleich wie die Ausführungsform gemäss den Figuren 1-3 zwei synchron oder allenfalls in Gegentakt arbeitende Saugköpfe 66 auf, von denen in Fig. 6 nur ein Saugkopf gezeigt ist. Dieser wird mittels eines noch näher zu beschreibenden Antriebes zwischen einer Uebernahmestelle 67, an der er ein Druckererzeugnis 2 ergreift, und einer Abgabestelle 68, an der das erfasste Erzeugnis 2 freigegeben wird, entlang der mit 70 bezeichneten Bewegungsbahn hin und her bewegt. Während der Bewegung von der Uebernahmestelle 67 zur Abgabestelle 68 ist der Saugkopf 66 wie bereits früher beschrieben mit einer Unterdruckquelle verbunden und hebt das oberste Druckereierzeugnis 2 vom Zwischenstapel 29 ab und schiebt es entgegen der Zuförderrichtung A in Richtung des Pfeiles E gegen die Fördereinrichtung 32 zurück. Um die Kanten 2b der Druckereierzeugnisse in den Förderbereich der Fördereinrichtung 32, d.h. in die Bewegungsbahn der offenen Greifer 33 zu bringen, ist an der dem Anschlag 11 gegenüberliegenden Kante des Zwischenstapels 29 ein Leitorgan 71 vorgesehen, das die beim Zurückbewegen der Druckereierzeugnisse 2 vorlaufende Kante 2b nach oben in den erwähnten Förderbereich F umlenkt.Like the embodiment according to FIGS. 1-3, the suction arrangement 65 has two suction heads 66 which operate synchronously or at most in push-pull, of which only one suction head is shown in FIG. 6. This is moved by means of a drive to be described in more detail between a takeover point 67, at which it grips a printed product 2, and a delivery point 68, at which the detected product 2 is released, along the movement path designated by 70. During the movement from the take-over point 67 to the delivery point 68, the suction head 66 is connected to a vacuum source as described earlier and lifts the uppermost printed product 2 from the intermediate stack 29 and pushes it back against the conveying direction A in the direction of arrow E against the conveying device 32. In order to bring the edges 2b of the printed products into the conveying area of the conveying device 32, that is to say into the movement path of the open grippers 33, a guide element 71 is provided on the edge of the intermediate stack 29 opposite the stop 11, which guides the edge 2b leading when the printed products 2 move back diverted upwards into the mentioned funding area F.

Anhand der Figuren 7-9 wird nun der Aufbau und die Wirkungsweise der Antriebsvorrichtung für den Saugkopf 66 erläutert.The structure and the mode of operation of the drive device for the suction head 66 will now be explained with reference to FIGS. 7-9.

Der Saugkopf 66 ist an einem rohrförmigen Tragarm 72 befestigt, der über eine Schlauchleitung mit einer nicht dargestellten Unterdruckquelle verbunden ist. Dieser Tragarm 72 ist mit einem Antrieb 73 verbunden, der einen Hebel 75 aufweist, mit dem der Tragarm 72 fest verbunden ist. Dieser Hebel 75 steht an beiden Enden über Gelenke 76 und 77 mit weiteren Hebeln in Verbindung. Mittels des Gelenkes 76, dessen Achse mit 76' bezeichnet ist, ist der Hebel 75 mit einem Hebel 78 verbunden, der drehfest auf einer Welle 79 mit der Achse 79' sitzt, die schwenkbar in einem Lager 80 gelagert ist. Ueber das andere Gelenk 77 mit der Achse 77' steht der Hebel 75 mit einem weiteren Hebel 81 in Verbindung, der schwenkbar in einem Lager 82 gelagert ist. Der zweiarmige Hebel 81 ist am anderen Ende über ein weiteres Gelenk 83 mit der Koppel 84 eines Kurbelantriebes verbunden, welche über ein Gelenk 85 mit einer Kurbel 86 verbunden ist. Letztere sitzt auf einer Welle 87 mit der Achse 87', die in einem Lager 88 gelagert ist und mit einem nicht gezeigten Antrieb verbunden ist. Die Kurbel 86 läuft in Richtung des Pfeiles K um.The suction head 66 is fastened to a tubular support arm 72 which is connected via a hose line to a vacuum source, not shown. This support arm 72 is connected to a drive 73 which has a lever 75 with which the support arm 72 is fixedly connected. This lever 75 is connected at both ends via joints 76 and 77 to other levers. By means of the joint 76, the axis of which is designated 76 ', the lever 75 is connected to a lever 78 which is fixed in terms of rotation on a shaft 79 with the axis 79', which is pivotably mounted in a bearing 80. Via the other joint 77 with the axis 77 ', the lever 75 is connected to a further lever 81, which is pivotably mounted in a bearing 82. The two-armed lever 81 is connected at the other end via a further joint 83 to the coupling 84 of a crank drive, which is connected to a crank 86 via a joint 85. The latter sits on a shaft 87 with the axis 87 ', which is mounted in a bearing 88 and is connected to a drive, not shown. The crank 86 rotates in the direction of the arrow K.

Anhand der Fig. 9, welche das vorstehend beschriebene Hebelgetriebe nur schematisch zeigt, wird nun die Funktionsweise des Antriebes 73 erläutert.The mode of operation of the drive 73 will now be explained with reference to FIG. 9, which only shows the lever transmission described above schematically.

Das Verbindungsgelenk 85 zwischen der Kurbel 86 und der Koppel 84 läuft wie bereits erwähnt entlang einer kreisförmigen Bahn 89 um. Der Hebel 81 führt dabei eine Schwenkbewegung um die Achse 82' seines Lagers 82 aus. Die beiden Endlagen des Hebels 81 sind einerseits mit einer ausgezogenen Linie und andererseits mit einer strichpunktierten Linie dargestellt. Die beiden Gelenke 77 und 83 des Hebels 81 bewegen sich dabei entlang der Bahnen 90 und 91 zwischen den Punkten I und II hin und her. Der Hebel 78 schwingt von der mit einer ausgezogenen Linie dargestellten Stellung in die strichpunktiert dargestellte Stellung 78a und wieder zurück, wobei sich das Gelenk 76 entlang der Bahn 92 zwischen den Punkten I' und II' hin und her bewegt. Durch diese Schwingbewegung der Hebel 81 und 78 ergibt sich auch die Bewegung des Hebels 75, an dem fest der Tragarm 72 des Saugkopfes 66 angebracht ist. Der Saugkopf 66 wird somit von der Uebernahmestelle 67 entlang der etwas gekrümmten Bewegungsbahn zur Abgabestelle 68 und auf derselben Bahn wieder zurück zur Uebernahmestelle 67 bewegt.As already mentioned, the connecting joint 85 between the crank 86 and the coupling 84 runs along a circular path 89. The lever 81 performs a pivoting movement about the axis 82 'of its bearing 82. The Both end positions of the lever 81 are shown on the one hand with a solid line and on the other hand with a dash-dotted line. The two joints 77 and 83 of the lever 81 move back and forth along the tracks 90 and 91 between points I and II. The lever 78 swings from the position shown with a solid line to the position 78a shown in broken lines and back again, the joint 76 moving back and forth along the path 92 between points I 'and II'. This oscillating movement of the levers 81 and 78 also results in the movement of the lever 75, on which the support arm 72 of the suction head 66 is fixedly attached. The suction head 66 is thus moved from the takeover point 67 along the somewhat curved path of movement to the delivery point 68 and back to the takeover point 67 on the same path.

Auf der rechten Seite der Figur 6 ist mit strichpunktierten Linien vergleichbar zur Fig. 1 eine Variante angedeutet, bei der der Bandförderer 3' die Schuppenformation S' in einer Richtung A' zur Stapelstelle 28 fördert, die der Förderrichtung A des Bandförderers 3 entgegengesetzt ist. Diese Variante kommt dann zur Anwendung, wenn in der zugeführten Schuppenformation S' die Falzkante 2a die nachlaufende, oben liegende Kante ist. Gleich wie anhand der Fig. 1 beschrieben, müssen bei dieser Variante der Anschlag 11 und die Förderwalze 13,das Leitorgan 71 sowie die Höhenüberwachungsanordnung 31 gegeneinander ausgetauscht werden. Zudem muss der Riemchenförderer 4 um die Achse 7a der Umlenkwalze 7 schwenkbar gelagert sein. Demgegenüber muss an der Saugeranordnung 65 nichts geändert werden.On the right-hand side of FIG. 6, a variant is indicated with dash-dotted lines, comparable to FIG. 1, in which the belt conveyor 3 'conveys the scale formation S' in a direction A 'to the stacking point 28, which is opposite to the conveying direction A of the belt conveyor 3. This variant is used when the folded edge 2a in the supplied scale formation S 'is the trailing, upper edge. In the same way as described with reference to FIG. 1, in this variant the stop 11 and the conveying roller 13, the guide member 71 and the height monitoring arrangement 31 must be exchanged. In addition, the apron conveyor 4 must be pivotally mounted about the axis 7a of the deflection roller 7. In contrast, nothing needs to be changed on the suction arrangement 65.

In Fig. 10 ist noch eine dritte Ausführungsform der erfindungsgemässen Vorrichtung gezeigt, die der Ausführungsform gemäss Fig. 6 sehr ähnlich ist und sich von dieser nur durch eine andere Ausbildung der zweiten Fördereinrichtung unterscheidet.FIG. 10 shows a third embodiment of the device according to the invention, which is very similar to the embodiment according to FIG. 6 and differs from it only in a different design of the second conveying device.

Anstelle einer Fördereinrichtung 32 mit einzeln steuerbaren Greifern 33 gemäss Fig. 6 wird bei der Vorrichtung gemäss Fig. 10 die Fördereinrichtung 93 durch zwei übereinander angeordnete Bandförderer 94 und 95 gebildet, welche zwischen sich eine Förderspalt 96 bilden. Die Förderrichtung der Fördereinrichtung 93 ist mit L bezeichnet.Instead of a conveyor device 32 with individually controllable grippers 33 according to FIG. 6, in the device according to FIG. 10, the conveyor device 93 is formed by two belt conveyors 94 and 95 arranged one above the other, which form a conveyor gap 96 between them. The conveying direction of the conveying device 93 is denoted by L.

Das jeweils oberste Druckereierzeugnis 2 im Zwischenstapel 29 wird durch die Saugeranordnung 65, wie im Zusammenhang mit den Figuren 6-9 beschrieben, etwas vom Stapel 29 abgehoben und in Richtung des Pfeiles E zurückgeschoben. Die dabei vorlaufende, offene Kante 2b der Druckereierzeugnisse 2 wird durch das Leitorgan 71 in den Einlauf 96a des Förderspaltes 96 umgelenkt.The uppermost printed product 2 in the intermediate stack 29 is somewhat lifted from the stack 29 by the suction arrangement 65, as described in connection with FIGS. 6-9, and pushed back in the direction of the arrow E. The leading, open edge 2b of the printed products 2 is deflected by the guide member 71 into the inlet 96a of the conveyor gap 96.

Wie die Figur 10 zeigt, werden die Druckereierzeugnisse 2 durch die Fördereinrichtung 93 wieder in einer Schuppenformation S₁ weggefördert, in der jedes Druckereierzeugnis 2 auf dem nachfolgenden Druckereierzeugnis aufliegt. Doch wird in dieser Schuppenformation S₁ die vorlaufende Kante 2b durch diejenige Kante gebildet, welche im zugeführten Schuppenstrom S die nachlaufende Kante bildete.As FIG. 10 shows, the printed products 2 are conveyed away again by the conveying device 93 in a scale formation S 1, in which each printed product 2 rests on the subsequent printed product. However, in this scale formation S 1, the leading edge 2 b is formed by the edge which formed the trailing edge in the shingled stream S supplied.

Auf der rechten Seite der Figur 10 ist strichpunktiert dieselbe Variante gezeigt wie in Fig. 6.The same variant as in FIG. 6 is shown in dash-dot lines on the right-hand side of FIG. 10.

Bei allen gezeigten Ausführungsformen kann der Riemchenförderer 4 etwa horizontal verlaufen (wie in Fig.1 gezeigt) oder wie in den Fig.6 und 10 dargestellt in Förderrichtung abfallend schräggestellt sein.In all of the embodiments shown, the apron conveyor can 4 run approximately horizontally (as shown in FIG. 1) or, as shown in FIGS. 6 and 10, are inclined sloping in the conveying direction.

Claims (16)

  1. Process for delivering preferably folded printing products (2) accumulating in an imbricated formation (S, S') to a further processing point, in which the printing products (2) are fed by a first conveying device (1) in an imbricated formation (S, S') which has, at most, irregularities and in which each printing product (2) rests on the following one, and are taken over by a second conveying device (32, 93) and conveyed further to the further processing point, characterized in that before being taken over by the second conveying device (32, 93), the printing products (2) fed by the first conveying device (1) are pushed one after the other into an intermediate stack (29) from below, the upper side (29a) of the intermediate stack (29) in the event a change of the height of the intermediate stack (29) is kept essentially at a predetermined height (H) by lowering and raising the intermediate stack (29), and in each case the uppermost printing product (2') of the intermediate stack (29) is seized by a sucker arrangement (44, 65) and brought by the latter into the conveying region (F, 96a) of the second conveying device (32, 93).
  2. Process according to Claim 1, characterized in that, in the case of folded printing products (2), the latter are seized by the sucker arrangement (44, 65) in the region of their fold (2a).
  3. Process according to Claim 1 or 2, characterized in that the printing products (2) are seized in the region of an edge (2a, 2b) and brought upwards into the conveying region (F) of the second conveying device (32).
  4. Process according to Claim 1 or 2, characterized in that the printing products (2) are seized in the region of an edge (2a, 2b) and moved in a direction (E) opposed to the conveying direction (A) of the first conveying device (1) into the conveying region (F, 96a) of the second conveying device (32, 93).
  5. Apparatus for delivering preferably folded printing products (2) accumulating in an imbricated formulation (S, S') to a further processing point, having a first conveying device (1) for feeding the printing products (2) in an imbricated formation (S) which has, at most, irregularities and in which each printing product (2) rests on the following one, and a second conveying device (32, 93) for taking over and further transporting to the further processing point the printing products (2) fed by the first conveying device (1), which apparatus is characterized by a stacking point (28) which is arranged in the conveying region of the first conveying device (1) and at which an intermediate stack (29), charged from below, is formed on a rest (4) from the printing products (2) fed by the first conveying device (1), by a control arrangement (31, 10) for lowering and raising the rest (4) for the intermediate stack (29), if the height of the intermediate stack (29) changes, in order to set the upper side (29a) of the intermediate stack (29) essentially to a predetermined height (H), and by a sucker arrangement (44, 65) which in each case acts on the uppermost printing product (2') of the intermediate stack (29) for raising the respectively seized printing product (2) from the intermediate stack (29) and delivering the same into the conveying region (F, 96a) of the second conveying device (32, 93).
  6. Apparatus according to Claim 5, characterized by a stop (11) which is arranged in the conveying path of the first conveying device (1) and defines the stacking point (28), for the leading edges (2a, 2b) of the fed printing products (2).
  7. Apparatus according to Claim 5 or 6, characterized in that the rest for the intermediate stack (29) is formed by a rocker (4) which is pivotal about an essentially horizontal axis (6', 7') and is connected to a drive (10) which is controlled by a height monitoring control (31).
  8. Apparatus according to one of Claims 5-7, characterized in that the sucker arrangement (44, 65) has at least one suction head (45, 46, 66) which can be connected periodically to a vacuum source and can be moved by means of a drive (49, 73) from a take-over point (51, 67), at which the respectively uppermost product (2') of the intermediate stack (29) is seized, to a delivery point (52, 68), at which the seized product (2) is delivered to the second conveying device (32, 93), and back to the take-over point (51, 67).
  9. Apparatus according to one of Claims 5-8, characterized in that the sucker arrangement (44) acting in the region of an edge (2a, 2b), preferably the fold edge (2a), of the respectively uppermost printing product (2') of the intermediate stack (29) raises the seized product (2) upwards and brings it into the conveying region (F) of the second conveying device (32).
  10. Apparatus according to one of Claims 5-8, characterized in that the sucker arrangement (65) acting in the region of an edge (2a, 2b), preferably the fold edge (2a), of the respectively uppermost printing product (2') of the intermediate stack (29) moves the seized product (2), with its opposite edge (2b, 2a) ahead, away from the intermediate stack (29) into the conveying region (F, 96a) of the second conveying device (32, 93).
  11. Apparatus according to one of Claims 5-10, characterized in that the second conveying device (32) has individually controllable grippers (33) which are fastened at intervals on a circulating drawing member and in that the sucker arrangement (44, 65) brings the seized printing products (2) with an edge region into the path of movement of the opened grippers (33).
  12. Apparatus according to one of Claims 5-10, characterized in that the second conveying device (93) has a belt conveyor which, at least in the run-in region (96a) of the printing products (2) fed by the sucker arrangement (65), is assigned a conveying member (94) which forms with the belt conveyor (95) a conveying nip (96) for the printing products (2).
  13. Apparatus according to Claim 8, characterized in that the drive (49) for the suction head (45, 46) moves the latter in a direction (C) along a closed path (50).
  14. Apparatus according to Claim 13, characterized in that the drive (49) has a crank-and-rocker mechanism (54), the connecting rod (53b) of which has a preferably angled-off extension arm (53a), to which the suction head (45, 46) is attached.
  15. Apparatus according to Claim 8, characterized in that the drive (73) for the suction head (66) moves the latter back and forth between two positions (67, 68) along essentially the same path (70).
  16. The apparatus according to Claim 15, characterized in that the suction head (66) is fastened on a lever (75) which is connected in a linked manner at one end to a pivotally mounted rocking lever (78) and at the other end to a likewise pivotally mounted further lever (81), which is coupled to a crank drive (84, 86) which drives the latter back and forth in a rocking manner.
EP92120375A 1992-01-09 1992-11-28 Method and device for feeding particularly folded printed products to a further processing station Expired - Lifetime EP0551601B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH4692 1992-01-09
CH46/92 1992-01-09
SG141794A SG141794G (en) 1992-01-09 1994-10-01 Process and apparatus for delivering preferably folded printing products to a further processing point

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EP0551601A1 EP0551601A1 (en) 1993-07-21
EP0551601B1 true EP0551601B1 (en) 1996-06-05

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EP92120375A Expired - Lifetime EP0551601B1 (en) 1992-01-09 1992-11-28 Method and device for feeding particularly folded printed products to a further processing station

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US (1) US5398920A (en)
EP (1) EP0551601B1 (en)
JP (1) JP2928038B2 (en)
KR (1) KR970000773B1 (en)
AT (1) ATE138886T1 (en)
AU (1) AU645716B2 (en)
BR (1) BR9205180A (en)
CA (1) CA2086633C (en)
DE (1) DE59206494D1 (en)
DK (1) DK0551601T3 (en)
ES (1) ES2088075T3 (en)
FI (1) FI106250B (en)
GB (1) GB2260123B (en)
HK (1) HK133994A (en)
NO (1) NO302286B1 (en)
RU (1) RU2067540C1 (en)
SG (1) SG141794G (en)

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DK1364900T3 (en) * 2002-05-22 2006-11-27 Ferag Ag Method of transporting flat, flexible products and device for practicing the method
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EP1834913A1 (en) * 2006-03-17 2007-09-19 Ferag AG Device for picking up and conveying of flat products
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KR930016241A (en) 1993-08-26
EP0551601A1 (en) 1993-07-21
KR970000773B1 (en) 1997-01-20
DK0551601T3 (en) 1996-07-01
CA2086633A1 (en) 1993-07-10
GB9224763D0 (en) 1993-01-13
ES2088075T3 (en) 1996-08-01
FI930045A0 (en) 1993-01-07
US5398920A (en) 1995-03-21
JP2928038B2 (en) 1999-07-28
NO930057D0 (en) 1993-01-08
GB2260123B (en) 1994-05-25
RU2067540C1 (en) 1996-10-10
FI106250B (en) 2000-12-29
BR9205180A (en) 1993-07-13
CA2086633C (en) 1999-08-17
SG141794G (en) 1995-01-13
AU645716B2 (en) 1994-01-20
AU2968392A (en) 1993-07-15
HK133994A (en) 1994-12-09
NO302286B1 (en) 1998-02-16
JPH0624617A (en) 1994-02-01
ATE138886T1 (en) 1996-06-15
GB2260123A (en) 1993-04-07
FI930045A (en) 1993-07-10
DE59206494D1 (en) 1996-07-11
NO930057L (en) 1993-07-12

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