EP0698451A1 - Method and apparatus for cutting flat printed products along a predetermined line of cut - Google Patents

Method and apparatus for cutting flat printed products along a predetermined line of cut Download PDF

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Publication number
EP0698451A1
EP0698451A1 EP95810490A EP95810490A EP0698451A1 EP 0698451 A1 EP0698451 A1 EP 0698451A1 EP 95810490 A EP95810490 A EP 95810490A EP 95810490 A EP95810490 A EP 95810490A EP 0698451 A1 EP0698451 A1 EP 0698451A1
Authority
EP
European Patent Office
Prior art keywords
cutting
printed products
knives
conveying
conveying direction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP95810490A
Other languages
German (de)
French (fr)
Other versions
EP0698451B1 (en
Inventor
Hans Müller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Grapha Holding AG
Original Assignee
Grapha Holding 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 Grapha Holding AG filed Critical Grapha Holding AG
Publication of EP0698451A1 publication Critical patent/EP0698451A1/en
Application granted granted Critical
Publication of EP0698451B1 publication Critical patent/EP0698451B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/56—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which travels with the work otherwise than in the direction of the cut, i.e. flying cutter
    • B26D1/60—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which travels with the work otherwise than in the direction of the cut, i.e. flying cutter and is mounted on a movable carriage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D11/00—Combinations of several similar cutting apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/08—Means for actuating the cutting member to effect the cut
    • B26D5/14—Crank and pin means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/06—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form
    • B26D7/0675—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form specially adapted for piles of sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D2007/0012—Details, accessories or auxiliary or special operations not otherwise provided for
    • B26D2007/0056—Rotating a pile of sheets in the plane of the sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D2007/0012—Details, accessories or auxiliary or special operations not otherwise provided for
    • B26D2007/0081—Cutting on three sides, e.g. trilateral trimming
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S83/00—Cutting
    • Y10S83/929—Particular nature of work or product
    • Y10S83/934—Book, being made, e.g. trimming a signature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/04—Processes
    • Y10T83/0515—During movement of work past flying cutter
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/465—Cutting motion of tool has component in direction of moving work
    • Y10T83/4696—Plural diverse flying cutters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/465—Cutting motion of tool has component in direction of moving work
    • Y10T83/4705—Plural separately mounted flying cutters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/647—With means to convey work relative to tool station
    • Y10T83/6476—Including means to move work from one tool station to another
    • Y10T83/6478—Tool stations angularly related
    • Y10T83/648—Work manipulated between tool stations

Definitions

  • the invention relates to a method for trimming flat printed products along a predetermined cutting line, which are conveyed continuously in succession along a conveying direction parallel to their plane, in which the printed products are passed between two opposing knives.
  • Such processes are used in print finishing, among others. after the saddle stitching of magazines, newspapers or after perfect binding resp. Thread booklets of brochures or books and book blocks are used, where a top and bottom as well as a front trimming is carried out at the edges.
  • a device according to CH-A-650 967 for trimming paper sheets with which the paper sheets are transported lying on a plane of a conveyor device and along a predetermined cutting line through a cutting device, the cutting device rotating against one another Counter knife working Knife disc from which a plurality of knives protrude radially.
  • the object of the present invention is therefore to provide a method for trimming printed products along a predetermined cutting line according to the type mentioned at the outset, with which a high throughput rate and the required cutting quality can be achieved with gentle handling of the printed products.
  • this object is achieved in that the two knives are moved in a cutting engagement with one another in a direction substantially perpendicular to the plane of the printed products.
  • the method according to the invention proves to be particularly advantageous if the predetermined cutting line runs parallel or transversely to the conveying direction of the printed products and thereby the top and bottom sides as well as the front side of the printed products can be cut in a simple manner, preferably with the top and bottom trims parallel to the conveying direction and the front trimming is carried out transversely to the conveying direction of the printed products.
  • a device for trimming flat printed products along a predetermined cutting line consists of a conveying device, by means of which the printed products can be conveyed continuously in succession along a conveying direction parallel to their plane, and a cutting device having two opposing knives, the printed products being conveyed by the conveying device between can be passed through the two knives, as well as from a drive device for at least one of the knives, the drive device according to the invention producing a cutting engagement movement of the two knives which is essentially perpendicular to the plane of the printed products, thereby ensuring optimum cutting quality with careful handling of the printed products.
  • the cutters are arranged with their cutting direction parallel to the conveying direction of the conveying device in order to make one or more cuts at the same time.
  • an arrangement of the knives with their cutting direction transversely to the conveying direction of the conveying device also proves to be expedient, in particular when it is a matter of the front trimming of the printed products.
  • Knives that are designed in the shape of elongated knife blades apply.
  • the cutting accuracy can be favored, the service life of the knives can be increased and the required cutting force can be reduced accordingly if at least one of the knives can be moved back and forth by the drive device parallel to the conveying direction of the conveying device, so that together with the vertical direction of movement, a drawn cutting action and one with movement in the same direction as the flow of conveyance occurs.
  • such a drive device is particularly advantageous, which is formed by at least one crank drive coupled to the cutting device.
  • this crank drive expediently has two cranks spaced apart in the conveying direction of the conveying device, on which one of the knives is articulated at the end.
  • the crank drive containing two cranks spaced apart in the conveying direction of the conveying device preferably has an actuating member which is articulated at the end and which extends in the conveying direction of the printed products, one of the knives arranged with its cutting direction being arranged transversely to the conveying direction being arranged on the actuating member.
  • At least one of the knives is designed to be adjustable and lockable.
  • cranks assigned to one knife of a cutting device with respect to cutting engagement movement compared to the other knife assigned cranks are controlled afterwards.
  • cranks or the knives of a cutting device and the conveying device have approximately the same speed in their proximity range.
  • one knife preferably the lower one of a cutting device, can support the printed products during the cutting process, it is not insignificant if the conveyor device consisting of endlessly rotating belts and the upper edge of the one knife form an approximately coplanar conveyor plane during the cutting engagement of the cutting device.
  • the printed products in the cutting area can be supported broadly to the side of the knives, which is why the conveying device in the cutting area has a guiding device that acts on the belts to support them.
  • cranks of the crank drives are each with one on the crank axis opposite counterweight connected.
  • the printed products are conveyed in the area of a cutting device, preferably with a controlled gripper, which gripper rotates synchronously with the crank drive.
  • the conveyor device in turn consists of from an endlessly circulating band with the relative positions of the printed products in relation to the cutting device defining stops on which the leading edge (folded edge) of the printed products is held in contact.
  • a transporter formed by grippers fastened at intervals at a transport chain extends with its front end of acceptance to the delivery end of the conveying device.
  • the measure ensures that the one knife is designed with a support surface.
  • a holding-down device acting on the printed products from above is arranged opposite a knife of a cutting device.
  • the spacing of the cutting devices for head and foot trimming which are positioned transversely on the conveyor device, are adjustable and fixable with respect to their distance on a guide arrangement connected to the machine stand.
  • a cutting system which consists of two cutting devices which are provided for head and foot trimming and which are opposite one another on both sides of a conveying flow, and one for a continuous cutting process Printing products serving, downstream of the cutting devices for head and foot trimming of a printed product, intended for front trimming.
  • a cutting system consisting of two cutting devices for head and foot trimming, which are opposite each other on both sides of a conveying flow, to which a cutting device provided for the front trimming of a printing product is connected, with a deflection device for changing the direction between the former and the latter cutting device of the flow rate of the printed products is switched and this cutting device is arranged on the side of the flow rate facing away from the fold of the printed product.
  • the cutting system 1 shows a cutting system 1, to which printed products 2 are fed according to arrow A on the right side by means of a conveying device 3 in advance.
  • the cutting system 1 viewed in the conveying direction of the printed products, consists of a cutting device 4, 4 'for the edge-side trimming of the foot and / or head of a printed product 2, which is connected downstream of a cutting device 5, for the edge on the front of the printed products 2 which follow at intervals is.
  • the processing of the printed products 2 in the cutting system 1 takes place in a cycle-dependent manner between a conveying device 3 and the cutting devices 4, 4 'and 5.
  • the cutting system 1 installed in a machine stand 6 is driven by a motor 7 which can be regulated in terms of speed.
  • Gear motor 8 and traction mechanism gear 9 are connected downstream of motor 7, which with cutting devices 4, 4 ′ and 5 are connected to the drive. 1 sufficiently indicates such a drive option without the need for additional explanations.
  • the cutting device 4, 4 ' which is driven directly by a belt transmission 10, is shown in FIG. 2 and in more detail in FIG. 3.
  • the cutting device 4, 4 ' is designed, as shown, for the head or foot trimming of a printed product 2, the latter being aligned with the predetermined cutting lines before the cut by a centering device 11 consisting of circumferential belts and acting laterally on the printed products 2 and one Accelerating device 13 superimposed on the conveying speed, comprising rotating belts (not shown), are placed one behind the other against stops 12 on the conveying device 3 formed by rotating conveyor chains.
  • the foot trimming consists of two opposing knives 14, 15 between which the separated printed products 2 can be passed, driven by the conveying device 3.
  • the knives 14, 15 are set by a drive device 16 to be described subsequently in a cutting engagement movement which is essentially perpendicular to the plane of the printed products 2, such that the knives 14, 15 arranged and mutually guided with their cutting direction parallel to the conveying direction of the conveying device 3 during the cutting engagement can also be moved in the same direction with the printed products 2.
  • the knives are designed in the form of elongated knife blades and, as mentioned, are moved back and forth by the drive device 16 parallel to the conveying direction.
  • crank mechanisms 17 and 18 are provided, each of which is assigned to a knife 14, 15.
  • crank drives 17, 18 each associated with a knife 14, 15 together form a drive device 16 of the cutting device 4, 4 ', each crank drive 17, 18 having two in the conveying direction of the conveying device 3 has cranks 19, 20 or 21, 22 spaced apart, on each of which one of the knives 14, 15 arranged with its cutting direction is articulated at the end side.
  • the uniform vibratory movements of the crank mechanisms 17, 18 are created by an angularly rotating movement of two cranks 19, 20 assigned to a knife 14, 15 respectively.
  • 21, 22, a common drive wheel 23 being provided between the two cranks 19, 20 or the cranks 21, 22 for this purpose and the same direction of rotation.
  • this drive wheel 23 is assigned to the cranks 19, 20 according to FIGS. 1 and 2.
  • the crank drives 17, 18 are formed by gear wheels 28 to 31 of the same part diameter and number of teeth attached to the crank axes 24 to 27.
  • Fig. 2 shows that the cranks 19, 20 of a knife 14 relative to the cranks 21, 22 of the opposite knife 15 different rotational positions on the crank axis 24, 25, respectively. 26, 27, that is to say that the (lower) knife 15 reaches its highest (culmination) position before the (upper) knife 14 reaches its lowest position (maximum cutting intervention).
  • the cranks 19, 20 assigned to the knife 14 are driven in a controlled manner with regard to the cutting engagement movement of the cutting device 4, 4 ', 5, in a controlled manner after the cranks 21, 22 assigned to the knife 15.
  • This wake is due to the mutual rotatability of the cranks 20, 22 and. 19, 21 by means of gears 29, 31 respectively. 28, 30 possible or adjustable and lockable and can take place in coordination with the properties of the printed products 2 and the cutting process. Due to the fact that the cranks 19, 21 and 20, 22 located opposite one another on the printed products 2 or the knives 14, 15 and the conveying device 3 in their approximate range approximately have the same speed, one can speak of a resulting cutting distance on which the cutting intervention takes
  • the conveying device 3 which consists of at least two laterally spaced, endlessly circulating belts, and the upper edge of the knife 15 during the cutting engagement of the cutting device 4, 4 ', 5 form an approximately coplanar level. 2 shows that the knife 15 has reached the coplanar plane with its upper edge, before reaching its highest position and immediately before the start of the cut, and then performs a counter-cutting movement by slightly lifting it. This possibility documents the adaptability of the cutting devices 4, 4 '5 to the selectable conditions when trimming the printed products.
  • the knives 14, 15 form a cutting gap 32 narrowing in the conveying direction of the printed products 2, the feed angle of which can be changed by an adjusting and locking device 71, which is due to the properties of the printed products 2 to be cut.
  • it is fastened to a bar 33 which is articulated on the cranks 19, 20 at both ends and which are provided with threaded holes along their length, in which screws rest, which penetrate vertical slots in the knife 5.
  • the circumferential, endless belts 35 of the conveying device 3 are supported on a guide device 34 as a stiffening aid.
  • a further support device 37 consisting of rollers 36 in a row in the longitudinal central axis of the cutting system 1 and a guide arrangement 38 for the stop conveyor chain 39.
  • counterweights 40 are attached on the side opposite a crank 19 to 22 on the crank axis 24 to 27.
  • Grippers 42 convey a cutting device 5 provided for the front trimming of the printed products 2, which connects to the continuous passage of the printed products 2 transferred by the cutting devices 4, 4 'for the head and foot trimming.
  • the transfer which is preferably, but not in any case, cycle-based, is carried out by the conveying device 3, which extends beyond the cutting device 4, 4 'in the conveying direction, and a transporter 40 which cooperates with the latter at the discharge end thereof and can be actuated at regular intervals by control devices on the circulating conveying chain 41 thereof Grippers 42 are attached.
  • the arrangement and the interaction of the conveyor 3 with the conveyor 40 can be seen in FIGS. 1 and 5.
  • the drive of the conveyor 40 which runs approximately in the vertical longitudinal center plane of the cutting system 1, is effected by the traction mechanism gear 9.
  • the printed products 2 are pushed or fed by the conveying device 3 to the grippers 42, which are open in the take-over area or at the delivery point of the conveying device 3 and which are fed in by a control device when the printed product 2 is delivered, and close by a spring force.
  • the printed products 2 are then on a guide table 43, the is interrupted in the cutting engagement area of the cutting device 5, moved or pulled through the latter.
  • the cutting device 5 adjoining the cutting devices 4, 4 ′ differs from the former in that its knives 50, 51 are arranged with the cutting direction transverse to the conveying direction of the conveying device 3.
  • the angles of the cranks 52 to 55 on the crank axes 56 to 59 are aligned approximately in pairs symmetrically opposite one another from the printed products 2, so that the knives 50, 51 have a cutting plane running transversely to the conveying direction form and the cutting operation takes place on a cutting path that is parallel to the conveying direction.
  • the printed products 2 move at least approximately as fast as the knives 50, 51 on this cutting path, which do not change their vertical cutting position during their orbital movement.
  • the crossbeams 64, here the lower one, receiving the knives 50, 51 form a support for the printed products during cutting.
  • a holding-down device 65 which extends at least over the cutting section and presses the printed products 2 against the upper side of the beam 33, is provided with a plurality of press rollers lined up in the conveying direction, which are pressed against the printed products 2, for example, against a spring energy store 72 become.
  • the drive of the cutting device 5 is initiated via the drive pinion 60 and an intermediate wheel 61 ensures that the cranks 52, 53 and 52 '53' rotate in the same direction and correspondingly in the opposite direction for the cranks 54, 55 and 54 '55' on the opposite side of the 5 consists of two transport chains 41 each running to the side of the vertical longitudinal center plane, which are connected by a transverse spacer 62 carrying the grippers 42.
  • the transport chains 41 arranged outside the cutting area of the cutting device 5 are supported on stationary guide webs 63.
  • FIG. 6 shows an embodiment of a gripper 42 in the closed position, in which the movable gripper part 66 is pressed against the stationary gripper part 67 connected to the transport chains 41.
  • the gripper 42 is closed by spring force, against which the gripper 42 is released by means of the double lever 68 running on a control track.
  • FIG. 7 instead of arranging the cutting devices 4, 4 ', 5 as illustrated in FIG. 1, there is a further arrangement of the cutting devices for head / foot and front trimming on a printed product according to FIG. 7. 7, the cutting stations / cutting devices are arranged at right angles to one another with respect to the conveying direction of the printed products 2, wherein a deflection device 69 which displaces the printed products 2 after the head / foot trimming into a conveying direction changed by 90 ° is arranged between the cutting stations.
  • This direction of deflection 69 can be designed as a rotating support member with grippers attached to the circumference, to which the printed products are fed after the head / foot trimming by a conveyor device 3 and, after the deflection, are conveyed to a transporter 40 for the subsequent front trimming, as in FIGS. 1 to 6 shown- or that instead a support member with grippers a deflection roller is provided, through which the grippers attached to an endless transport chain are guided to the following cutting device for the front trimming.
  • Such an embodiment would be advantageous in that the same cutting device in the same arrangement could be used for the front trimming of the printed products 2 as is already used for head and / or foot trimming of the printed products.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Cutting Devices (AREA)
  • Nonmetal Cutting Devices (AREA)

Abstract

The cutting process is carried out by two knives of a cutting device (4,4',5) opposite each other, moving continuously along feed direction parallel to their plane one behind the other. The two knives are moved in a plane basically perpendicular to the plane of the print product (2) in cutting grip with each other. The device used includes a feed device (3) by which the print product is moved as described. The print product can be guided through the knives. It also includes a drive device for at least one of the knives, which enables the knives to move in the manner described.

Description

Die Erfindung bezieht sich auf ein Verfahren zum Beschneiden von flachen Druckprodukten längs einer vorgegebenen Schnittlinie, die entlang einer zu ihrer Ebene parallelen Förderrichtung hintereinander kontinuierlich gefördert werden, bei dem die Druckprodukte zwischen zwei einander gegenüberstehenden Messern hindurchgeführt werden.The invention relates to a method for trimming flat printed products along a predetermined cutting line, which are conveyed continuously in succession along a conveying direction parallel to their plane, in which the printed products are passed between two opposing knives.

Solche Verfahren werden in der Druckweiterverarbeitung u.a. nach dem Sammelheften von Zeitschriften, Zeitungen oder nach dem Klebebinden resp. Fadenheften von Broschüren oder Büchern und Buchblöcken angewendet, wo jeweils randseitig ein Kopfund Fuss- sowie ein Frontbeschnitt vorgenommen wird.Such processes are used in print finishing, among others. after the saddle stitching of magazines, newspapers or after perfect binding resp. Thread booklets of brochures or books and book blocks are used, where a top and bottom as well as a front trimming is carried out at the edges.

Zu diesem Zweck ist beispielsweise eine Einrichtung nach der CH - A - 650 967 zum Beschneiden von Papierbogen bekannt, mit welcher die Papierbogen auf einer Ebene einer Fördereinrichtung liegend und längs einer vorgegebenen Schnittlinie durch eine Schneidvorrichtung transportiert werden, wobei die Schneidvorrichtung eine rotierende, gegen ein Gegenmesser arbeitende Messerscheibe aufweist, von welcher eine Vielzahl von Messern radial abstehen.For this purpose, for example, a device according to CH-A-650 967 for trimming paper sheets is known, with which the paper sheets are transported lying on a plane of a conveyor device and along a predetermined cutting line through a cutting device, the cutting device rotating against one another Counter knife working Knife disc from which a plurality of knives protrude radially.

Eine Verbesserung der Schnittqualität konnte dadurch gegenüber einer Schneidvorrichtung erreicht werden, bei der die rotierende Messerscheibe und das ebenso als rotierende Messerscheibe ausgebildete Gegenmesser kreisförmige Schneiden aufweisen, und die sich nur zum Beschneiden von relativ dünnen Druckprodukten eignet.An improvement in the cutting quality could thereby be achieved compared to a cutting device in which the rotating knife disk and the counter knife also designed as a rotating knife disk have circular cutting edges, and which is only suitable for trimming relatively thin printed products.

Aufgabe der vorliegenden Erfindung ist es deshalb, ein Verfahren zum Beschneiden von Druckprodukten längs einer vorgegebenen Schnittlinie nach der eingangs genannten Art zu schaffen, mit welchem bei schonender Behandlung der Druckprodukte eine hohe Durchsatzleistung und die geforderte Schnittqualität erzielt werden können.The object of the present invention is therefore to provide a method for trimming printed products along a predetermined cutting line according to the type mentioned at the outset, with which a high throughput rate and the required cutting quality can be achieved with gentle handling of the printed products.

Erfindungsgemäss wird diese Aufgabe dadurch gelöst, dass die beiden Messer in einer zur Ebene der Druckprodukte im wesentlichen senkrechten Richtung miteinander in Schneideingriff bewegt werden.According to the invention, this object is achieved in that the two knives are moved in a cutting engagement with one another in a direction substantially perpendicular to the plane of the printed products.

Das erfindungsgemässe Verfahren erweist sich dann als besonders vorteilhaft, wenn die vorgegebene Schnittlinie parallel oder quer zur Förderrichtung der Druckprodukte verläuft und dadurch Kopf- und Fussseite wie auch die Frontseite der Druckprodukte auf eine einfache Art beschneidbar werden, wobei vorzugsweise Kopf- und Fussbeschnitt parallel zur Förderrichtung und der Frontbeschnitt quer zur Förderrichtung der Druckprodukte durchgeführt wird.The method according to the invention proves to be particularly advantageous if the predetermined cutting line runs parallel or transversely to the conveying direction of the printed products and thereby the top and bottom sides as well as the front side of the printed products can be cut in a simple manner, preferably with the top and bottom trims parallel to the conveying direction and the front trimming is carried out transversely to the conveying direction of the printed products.

Es erweist sich als besonders günstig, wenn wenigstens einem der Messer, vorzugsweise jedoch beiden, eine in der Förderrichtung der Druckprodukte wirkende Bewegungskomponente erteilt wird, wodurch der Schneideingriff der Messer zeitlich verlängerbar und über eine wenigstens annähernd gemeinsame Bewegungsstrecke der Messer, eine sog. Schneidstrecke erfolgen kann. Diese Massnahme wirkt sich vorteilhaft auf die Schnittqualität und einen kontinuierlichen Druchsatz der Druckprodukte in einer Schneidvorrichtung aus.It has proven to be particularly favorable if at least one of the knives, but preferably both, is given a movement component acting in the conveying direction of the printed products, as a result of which the cutting engagement of the knives can be extended in time and via an at least approximately common one Movement distance of the knife, a so-called cutting distance can take place. This measure has an advantageous effect on the cutting quality and a continuous throughput of the printed products in a cutting device.

Insbesondere wenn die Bewegungskomponenten der Druckprodukte und Messer während dem Schneideingriff bzw. Schneidvorgang etwa gleich gross sind, kann bei einem weitgehend reibungslosen Durchsatz eine optimale Schnittqualität an den Druckprodukten erreicht werden.In particular if the movement components of the printed products and knives are approximately of the same size during the cutting operation or cutting process, an optimal cutting quality can be achieved on the printed products with a largely smooth throughput.

Eine Einrichtung zum Beschneiden von flachen Druckprodukten längs einer vorgegebenen Schnittlinie, besteht aus einer Fördervorrichtung, durch welche die Druckprodukte entlang einer zu ihrer Ebene parallelen Förderrichtung hintereinander kontinuierlich förderbar sind, und aus einer zwei einander gegenüberstehende Messer aufweisenden Schneidvorrichtung, wobei die Druckprodukte von der Fördervorrichtung zwischen den beiden Messern hindurchführbar sind, sowie aus einer Antriebsvorrichtung für wenigstens eines der Messer, wobei die Antriebsvorrichtung erfindungsgemäss eine zur Ebene der Druckprodukte im wesentlichen senkrechte Schneideingriffsbewegung der beiden Messer erzeugt und dadurch eine optimale Schnittqualität bei schonender Handhabung der Druckprodukte gewährleistet.A device for trimming flat printed products along a predetermined cutting line consists of a conveying device, by means of which the printed products can be conveyed continuously in succession along a conveying direction parallel to their plane, and a cutting device having two opposing knives, the printed products being conveyed by the conveying device between can be passed through the two knives, as well as from a drive device for at least one of the knives, the drive device according to the invention producing a cutting engagement movement of the two knives which is essentially perpendicular to the plane of the printed products, thereby ensuring optimum cutting quality with careful handling of the printed products.

Dabei erweist es sich als zweckmässig, wenn zur Durchführung eines oder gleichzeitig mehrerer Schnitte die Messer mit ihrer Schneidrichtung parallel zur Förderrichtung der Fördervorrichtung angeordnet sind.It proves to be expedient if the cutters are arranged with their cutting direction parallel to the conveying direction of the conveying device in order to make one or more cuts at the same time.

Alternativ erweist sich eine Anordnungsweise der Messer mit ihrer Schneidrichtung quer zur Förderrichtung der Fördervorrichtung ebenso zweckmässig, insbesondere dann, wenn es sich um den Frontbeschnitt der Druckprodukte handelt.Alternatively, an arrangement of the knives with their cutting direction transversely to the conveying direction of the conveying device also proves to be expedient, in particular when it is a matter of the front trimming of the printed products.

Als stabil und zuverlässig für eine andauernd gute Schnittqualität gelten Messer, die nach der Form länglicher Messerklingen ausgebildet sind.As stable and reliable for a consistently good cut quality Knives that are designed in the shape of elongated knife blades apply.

Die Schnittgenauigkeit kann begünstigt, die Standzeit der Messer erhöht und die erforderliche Schnittkraft entsprechend reduziert werden, wenn wenigstens eines der Messer von der Antriebsvorrichtung parallel zu der Förderrichtung der Fördervorrichtung hin und her bewegbar ist, sodass mit der senkrechten Bewegungsrichtung zusammen ein gezogener Schnitteingriff und eine mit dem Förderfluss gleichgerichtete Bewegung entsteht.The cutting accuracy can be favored, the service life of the knives can be increased and the required cutting force can be reduced accordingly if at least one of the knives can be moved back and forth by the drive device parallel to the conveying direction of the conveying device, so that together with the vertical direction of movement, a drawn cutting action and one with movement in the same direction as the flow of conveyance occurs.

Hierzu eignet sich eine solche Antriebsvorrichtung besonders vorteilhaft, die durch wenigstens einen mit der Schneidvorrichtung gekoppelten Kurbeltrieb gebildet ist.For this purpose, such a drive device is particularly advantageous, which is formed by at least one crank drive coupled to the cutting device.

Zweckmässig weist dieser Kurbeltrieb zur Erzielung einer zur Förderrichtung parallelen Schneidrichtung zwei in der Förderrichtung der Fördervorrichtung beabstandete Kurbeln auf, an denen eines der Messer endseitig angelenkt ist.To achieve a cutting direction parallel to the conveying direction, this crank drive expediently has two cranks spaced apart in the conveying direction of the conveying device, on which one of the knives is articulated at the end.

Für einen quer zur Förderrichtung vorzunehmenden Schnitt besitzt der in Förderrichtung der Fördervorrichtung zwei beabstandete Kurbeln enthaltende Kurbeltrieb vorzugsweise ein sich in der Förderrichtung der Druckprodukte erstreckendes, endseitig angelenktes Betätigungsglied, wobei eines der mit ihrer Schneidrichtung quer zur Förderrichtung angeordneten Messer an dem Betätigungsglied angeordnet ist.For a cut to be made transversely to the conveying direction, the crank drive containing two cranks spaced apart in the conveying direction of the conveying device preferably has an actuating member which is articulated at the end and which extends in the conveying direction of the printed products, one of the knives arranged with its cutting direction being arranged transversely to the conveying direction being arranged on the actuating member.

Um die Schneideingriffsverhältnisse der Messer einer Schneidvorrichtung ändern zu können, ist wenigstens eines der Messer verstell- und feststellbar ausgebildet.In order to be able to change the cutting engagement conditions of the knives of a cutting device, at least one of the knives is designed to be adjustable and lockable.

Zur Erzielung einer gleichsinnigen Antriebsbewegung der Kurbeln eines Kurbeltriebes ist zwischen den beiden Kurbeln ein auf diese einwirkendes gemeinsames Antriebsrad (Zwischenrad) angeordnet.In order to achieve a drive movement of the cranks of a crank drive in the same direction, a common drive wheel (intermediate wheel) acting on the two cranks is placed between them. arranged.

Um beim Schneidvorgang einen weitgehend übergangsfreien Förderfluss der Druckprodukte erzielen zu können und/oder um die Stabilisierung der Druckprodukte unmittelbar vor und während dem Schneiden unterstützen zu können, ist es vorteilhaft, wenn die dem einen Messer einer Schneidvorrichtung zugeordneten Kurbeln hinsichtlich Schneideingriffsbewegung gegenüber den dem anderen Messer zugeordneten Kurbeln nachlaufend gesteuert sind.In order to be able to achieve a largely transition-free conveying flow of the printed products during the cutting process and / or to be able to support the stabilization of the printed products immediately before and during the cutting, it is advantageous if the cranks assigned to one knife of a cutting device with respect to cutting engagement movement compared to the other knife assigned cranks are controlled afterwards.

Aufgrund der sich mit der Druckproduktdicke und anderen -eigenschaften ändernden Schneidverhältnisse und zur Erzielung einer optimalen Schneidqualität ist es günstig, wenn der Nachlauf der Kurbeln eines Messers einstellbar ausgebildet ist.Due to the changing cutting conditions with the printed product thickness and other properties and to achieve an optimal cutting quality, it is favorable if the wake of the cranks of a knife is designed to be adjustable.

Dabei ist vorzugsweise darauf zu achten, dass die Kurbeln bzw. die Messer einer Schneidvorrichtung und die Fördervorrichtung in ihrem Näherungsbereich etwa die gleiche Geschwindigkeit aufweisen.It should preferably be ensured that the cranks or the knives of a cutting device and the conveying device have approximately the same speed in their proximity range.

Damit die einen Messer, vorzugsweise das untere einer Schneidvorrichtung eine Abstützung der Druckprodukte beim Schneidvorgang bilden kann, ist es nicht unbedeutend, wenn die aus endlos umlaufenden Bändern bestehende Fördervorrichtung und die Oberkante des einen Messers während dem Schneideingriff der Schneidvorrichtung eine etwa koplanare Förderebene bilden.So that one knife, preferably the lower one of a cutting device, can support the printed products during the cutting process, it is not insignificant if the conveyor device consisting of endlessly rotating belts and the upper edge of the one knife form an approximately coplanar conveyor plane during the cutting engagement of the cutting device.

Es erweist sich als vorteilhaft, wenn die Druckprodukte im Schneidbereich seitlich der Messer breit abgestützt werden können, weshalb die Fördervorrichtung im Schneidbereich eine auf die Bänder stützend einwirkende Führungsvorrichtung aufweist.It proves to be advantageous if the printed products in the cutting area can be supported broadly to the side of the knives, which is why the conveying device in the cutting area has a guiding device that acts on the belts to support them.

Zur Meidung ungleichmässiger Zentrifugalkräfte sind die Kurbeln der Kurbeltriebe jeweils mit einem an der Kurbelachse gegenüberliegenden Gegengewicht verbunden.To avoid uneven centrifugal forces, the cranks of the crank drives are each with one on the crank axis opposite counterweight connected.

Die Druckprodukte werden im Bereich einer Schneidvorrichtung vorzugsweise mit einem gesteuerten Greifer gefördert, welcher Greifer synchron mit dem Kurbeltrieb umläuft.The printed products are conveyed in the area of a cutting device, preferably with a controlled gripper, which gripper rotates synchronously with the crank drive.

Die Fördervorrichtung wiederum besteht u.a. aus einem endlos umlaufenden Band mit die Relativlage der Druckprodukte inbezug auf die Schneidvorrichtung festlegenden Anschlägen, an denen die vorauslaufende Kante (Falzkante) der Drucprodukte in Anlage gehalten ist.The conveyor device in turn consists of from an endlessly circulating band with the relative positions of the printed products in relation to the cutting device defining stops on which the leading edge (folded edge) of the printed products is held in contact.

Im Zusammenhang mit dem kontinuierlichen Förderfluss der Druckprodukte und dem ohne Lageänderung der Druckprodukte vorzunehmenden Frontbeschnitt bzw. der quer zur Förderrichtung vorgegebenen Schnittlinie, erstreckt sich ein durch an einer Transportkette in Abständen befestigte Greifer gebildeter Tansporteur mit seinem vorderen Übernahmeende an das Abgabeende der Fördervorrichtung.In connection with the continuous conveying flow of the printed products and the front trimming to be carried out without changing the position of the printed products or the cutting line predetermined transversely to the conveying direction, a transporter formed by grippers fastened at intervals at a transport chain extends with its front end of acceptance to the delivery end of the conveying device.

Für eine Verbesserung der Auflage im Schneidbereich sorgt die Massnahme, dass das eine Messer mit einer Auflagefläche ausgebildet ist.To improve the support in the cutting area, the measure ensures that the one knife is designed with a support surface.

In Anbetracht der geforderten hohen Schnittqualität ist vorgesehen, dass gegenüberliegend von einem Messer einer Schneidvorrichtung ein von oben auf die Druckprodukte einwirkender Niederhalter angeordnet ist.In view of the high cutting quality required, it is provided that a holding-down device acting on the printed products from above is arranged opposite a knife of a cutting device.

Aufgrund der zu beschneidenden unterschiedlichen Formate von Druckprodukten sind die an der Fördervorrichtung quer gegenübergestellten Schneidvorrichtungen für Kopf- und Fussbeschnitt hinsichtlich ihres Abstandes an einer mit dem Maschinenständer verbundenen Führungsanordnung verstell- und feststellbar ausgebildet.Because of the different formats of printed products to be trimmed, the spacing of the cutting devices for head and foot trimming, which are positioned transversely on the conveyor device, are adjustable and fixable with respect to their distance on a guide arrangement connected to the machine stand.

Als eine bevorzugte Anordnungsvariante zur Durchführung eines dreifachen Randbeschnittes bzw. von Kopf-, Fuss- und Frontbeschnitt eignet sich eine Schneidanlage, die aus zwei sich beidseits eines Förderstromes beabstandeter Druckprodukte gegenüberstehenden, für Kopf- und Fussbeschnitt vorgesehenen Schneidvorrichtungen und einer diesen für einen kontinuierlichen Schneidvorgang der Druckprodukte dienenden, in Förderrichtung den Schneidvorrichtungen für Kopf- und Fussbeschnitt eines Druckproduktes nachgeschalteten, für den Frontbeschnitt bestimmten Schneidvorrichtung besteht.As a preferred arrangement variant for carrying out a triple edge trimming or of head, foot and front trimming, a cutting system is suitable which consists of two cutting devices which are provided for head and foot trimming and which are opposite one another on both sides of a conveying flow, and one for a continuous cutting process Printing products serving, downstream of the cutting devices for head and foot trimming of a printed product, intended for front trimming.

Selbsverständlich könnte eine Schneidanlage mit umgekehrter Reihenfolge der Schneidvorrichtungen das Schneidvorhaben durchführen.Of course, a cutting system with the reverse order of the cutting devices could carry out the cutting project.

Anstelle einer Aenderung an der Reihenfolge der Schneidvorrichtungen könnte eine Schneidanlage aus zwei sich beidseits eines Förderstromes beabstandeter Druckprodukte gegenüberstehenden Schneidvorrichtungen für Kopf- und Fussbeschnitt dienen, an welche eine für den Frontbeschnitt eines Druckproduktes vorgesehene Schneidvorrichtung anschliesst, wobei zwischen ersteren und letzerer Schneidvorrichtung eine Umlenkvorrichtung zur Richtungsänderung des Förderstromes der Druckprodukte geschaltet und diese Schneidvorrichtung auf der dem Falz des Druckproduktes abgewendeten Seite des Förderstromes angeordnet ist.Instead of a change in the sequence of the cutting devices, a cutting system consisting of two cutting devices for head and foot trimming, which are opposite each other on both sides of a conveying flow, to which a cutting device provided for the front trimming of a printing product is connected, with a deflection device for changing the direction between the former and the latter cutting device of the flow rate of the printed products is switched and this cutting device is arranged on the side of the flow rate facing away from the fold of the printed product.

Nachstehend werden die erfindungsgemässen Verfahren und die Einrichtungen unter Bezugnahme auf die Zeichnung, auf die bezüglich aller in der Beschreibung nicht näher erläuterten Einzelheiten ausdrücklich verwiesen wird, erklärt. Es zeigen:

Fig. 1
eine schematische Seitenansicht einer Schneidanlage für Druckprodukte,
Fig. 2
eine auszugsweise vergrösserte Seitenansicht einer ersten Schneidvorrichtung einlaufseitig der Schneidanlage gemäss Fig. 1,
Fig. 3
einen Querschnitt durch die erste Schneidvorrichtung nach Schnittlinie III - III in Fig. 2,
Fig. 4
eine auszugsweise vergrösserte Seitenansicht einer zweiten Schneidvorrichtung der Schneidanlage gemäss Fig. 1,
Fig. 5
einen Querschnitt durch die zweite Schneidvorrichtung der Schneidanlage nach Schnittlinie V - V in Fig. 4,
Fig. 6
eine Ansicht eines Greifers und
Fig. 7
eine alternative Ausgestaltungsform der Schneidanlage für Druckprodukte.
The method according to the invention and the devices are explained below with reference to the drawing, to which express reference is made to all details not explained in the description. Show it:
Fig. 1
a schematic side view of a cutting system for printed products,
Fig. 2
a partially enlarged side view a first cutting device on the inlet side of the cutting system according to FIG. 1,
Fig. 3
3 shows a cross section through the first cutting device along section line III-III in FIG. 2,
Fig. 4
2 shows an enlarged side view of a second cutting device of the cutting system according to FIG. 1,
Fig. 5
3 shows a cross section through the second cutting device of the cutting system according to cutting line V - V in FIG. 4,
Fig. 6
a view of a gripper and
Fig. 7
an alternative embodiment of the cutting system for printed products.

In der schematischen Darstellung nach Fig. 1 ist eine Schneidanlage 1 veranschaulicht, welcher gemäss Pfeil A an der rechten Seite Druckprodukte 2 mittels einer Fördervorrichtung 3 falzvoran zugeführt werden. Die Schneidanlage 1 besteht in Förderrichtung der Druckprodukte betrachtet aus einer Schneidvorrichtung 4, 4' für den randseitigen Beschnitt von Fuss und/oder Kopf eines Druckproduktes 2, welcher eine Schneidvorrichtung 5, für den Rand an der Frontseite der sich in Abständen folgenden Druckprodukte 2, nachgeschaltet ist. Die Verarbeitung der Druckprodukte 2 in der Schneidanlage 1 erfolgt taktgebunden zwischen einer Fördervorrichtung 3 und den Schneidvorrichtungen 4, 4' und 5.
Die in einen Maschinenständer 6 eingebaute Schneidanlage 1 wird von einem hinsichtlich Drehzahl regelbaren Motor 7 angetrieben. Dem Motor 7 sind Zahnrad- 8 und Zugmittelgetriebe 9 nachgeschaltet, die mit den Schneidvorrichtungen 4, 4' und 5 antriebsverbunden sind. Die Fig. 1 weist ohne notwendige zusätzliche Erklärungen ausreichend auf eine solche Antriebsmöglichkeit hin.
In Fig. 2 ist die unmittelbar von einem Riemenvorgelege 10 angetriebene Schneidvorrichtung 4, 4' und in Fig. 3 näher gezeigt.1 shows a cutting system 1, to which printed products 2 are fed according to arrow A on the right side by means of a conveying device 3 in advance. The cutting system 1, viewed in the conveying direction of the printed products, consists of a cutting device 4, 4 'for the edge-side trimming of the foot and / or head of a printed product 2, which is connected downstream of a cutting device 5, for the edge on the front of the printed products 2 which follow at intervals is. The processing of the printed products 2 in the cutting system 1 takes place in a cycle-dependent manner between a conveying device 3 and the cutting devices 4, 4 'and 5.
The cutting system 1 installed in a machine stand 6 is driven by a motor 7 which can be regulated in terms of speed. Gear motor 8 and traction mechanism gear 9 are connected downstream of motor 7, which with cutting devices 4, 4 ′ and 5 are connected to the drive. 1 sufficiently indicates such a drive option without the need for additional explanations.
The cutting device 4, 4 ', which is driven directly by a belt transmission 10, is shown in FIG. 2 and in more detail in FIG. 3.

Die Schneidvorrichtung 4, 4' ist gemäss Darstellung für den Kopf- oder den Fussbeschnitt eines Druckproduktes 2 ausgebildet, wobei letztere vor dem Schnitt von einer aus umlaufenden Bändern bestehenden, seitlich auf die Druckprodukte 2 einwirkenden Zentriervorrichtung 11 auf die vorgegebenen Schnittlinien ausgerichtet und von einer die Fördergeschwindigkeit überlagernden Beschleunigungsvorrichtung 13 aus umlaufenden Bändern (nicht gezeigt) von hinten gegen Anschläge 12 an der aus umlaufenden Förderketten gebildeten Fördervorrichtung 3 hintereinander angelegt werden. Die Schneidvorrichtungen 4, 4' 5 für Kopf- resp. Fussbeschnitt bestehen aus zwei einander gegenüberstehenden Messern 14, 15 zwischen denen die vereinzelten Druckprodukte 2 von der Fördervorrichtung 3 angetrieben hindurchführbar sind. Die Messer 14, 15 werden durch eine anschliessend zu beschreibende Antriebsvorrichtung 16 in eine zur Ebene der Druckprodukte 2 im wesentlichen senkrechte Schneideingriffsbewegung versetzt, derart, dass die mit ihrer Schneidrichtung parallel zur Förderrichtung der Fördervorrichtung 3 angeordneten sowie gegenseitig geführten Messer 14, 15 während dem Schneideingriff zusätzlich mit den Druckprodukten 2 gleichsinnig bewegt werden.
Dabei sind die Messer in der Form länglicher Messerklingen ausgebildet und werden wie erwähnt von der Antriebsvorrichtung 16 parallel zu der Förderrichtung hin- und herbewegt.
Hierzu sind Kurbeltriebe 17 und 18 vorgesehen, die jewils einem Messer 14, 15 zugeordnet sind.
Beide jeweils einem Messer 14, 15 zugeordneten Kurbeltriebe 17, 18 zusammen bilden eine Antriebsvorrichtung 16 der Schneidvorrichtung 4, 4' wobei jeder Kurbeltrieb 17, 18 zwei in Förderrichtung der Fördervorrichtung 3 beabstandete Kurbeln 19, 20 bzw. 21, 22 aufweist, an denen jeweils eines der mit ihrer Schneidrichtung parallel zur Förderrichtung angeordneten Messer 14, 15 endseitig angelenkt ist.
Die gleichförmigen Schwingungsbewegungen der Kurbeltriebe 17, 18 entsteht durch eine winkelgleiche Drehbewegung zweier einem Messer 14, 15 zugeordneter Kurbeln 19, 20 resp. 21, 22, wobei dafür und den gleichen Drehsinn ein zwischen den beiden Kurbeln 19, 20 oder den Kurbeln 21, 22 angeordnetes gemeinsames Antriebsrad 23 vorgesehen ist. Im dargestellten Ausführungsbeispiel ist gemäss den Fig. 1 und 2 dieses Antriebsrad 23 den Kurbeln 19, 20 zugeordnet.
In Fig. 3 ist ersichtlich, dass bei den Schneidvorrichtungen 4, 4' für Kopf- bzw. Fussbeschnitt die Kurbeltriebe 17, 18 durch an den Kurbelachsen 24 bis 27 befestigte Zahnräder 28 bis 31 gleichen Teildurchmessers und Zähnezahl ausgebildet sind.The cutting device 4, 4 'is designed, as shown, for the head or foot trimming of a printed product 2, the latter being aligned with the predetermined cutting lines before the cut by a centering device 11 consisting of circumferential belts and acting laterally on the printed products 2 and one Accelerating device 13 superimposed on the conveying speed, comprising rotating belts (not shown), are placed one behind the other against stops 12 on the conveying device 3 formed by rotating conveyor chains. The cutting devices 4, 4 '5 for head or. The foot trimming consists of two opposing knives 14, 15 between which the separated printed products 2 can be passed, driven by the conveying device 3. The knives 14, 15 are set by a drive device 16 to be described subsequently in a cutting engagement movement which is essentially perpendicular to the plane of the printed products 2, such that the knives 14, 15 arranged and mutually guided with their cutting direction parallel to the conveying direction of the conveying device 3 during the cutting engagement can also be moved in the same direction with the printed products 2.
The knives are designed in the form of elongated knife blades and, as mentioned, are moved back and forth by the drive device 16 parallel to the conveying direction.
For this purpose, crank mechanisms 17 and 18 are provided, each of which is assigned to a knife 14, 15.
Both crank drives 17, 18 each associated with a knife 14, 15 together form a drive device 16 of the cutting device 4, 4 ', each crank drive 17, 18 having two in the conveying direction of the conveying device 3 has cranks 19, 20 or 21, 22 spaced apart, on each of which one of the knives 14, 15 arranged with its cutting direction is articulated at the end side.
The uniform vibratory movements of the crank mechanisms 17, 18 are created by an angularly rotating movement of two cranks 19, 20 assigned to a knife 14, 15 respectively. 21, 22, a common drive wheel 23 being provided between the two cranks 19, 20 or the cranks 21, 22 for this purpose and the same direction of rotation. In the exemplary embodiment shown, this drive wheel 23 is assigned to the cranks 19, 20 according to FIGS. 1 and 2.
In Fig. 3 it can be seen that in the cutting devices 4, 4 'for head or foot trimming, the crank drives 17, 18 are formed by gear wheels 28 to 31 of the same part diameter and number of teeth attached to the crank axes 24 to 27.

Fig. 2 zeigt, dass die Kurbeln 19, 20 eines Messers 14 gegenüber den Kurbeln 21, 22 des gegenüberliegenden Messers 15 unterschiedliche Drehlagen an der Kurbelachse 24, 25 resp. 26, 27 aufweisen, d.h. dass das (untere) Messer 15 seine höchste (Kulminations-) Lage erreicht, bevor das (obere) Messer 14 seine tiefste Position (max. Schneideingriff) erreicht. Die dem Messer 14 zugeordneten Kurbeln 19, 20 sind hinsichtlich der Schneideingriffsbewegung der Schneidvorrichtung 4, 4', 5 den dem Messer 15 zugeordneten Kurbeln 21, 22 nachlaufend gesteuert angetrieben.
Dieser Nachlauf ist durch die gegenseitige Verdrehbarkeit der Kurbeln 20, 22 resp. 19, 21 mittels Zahnräder 29, 31 resp. 28, 30 möglich bzw. ein- und feststellbar und kann in Abstimmung mit den Eigenschaften der Druckprodukte 2 und des Schneidvorganges erfolgen.
Dadurch, dass die sich an den Druckprodukten 2 gegenüberliegenden Kurbeln 19, 21 und 20, 22 bzw. die Messer 14, 15 und die Fördervorrichtung 3 in ihrem Näherungsbereich etwa die gleiche Geschwindigkeit aufweisen, kann man von einer sich ergebenden Schnittstrecke sprechen, auf welcher der Schneideingriff erfolgt.Fig. 2 shows that the cranks 19, 20 of a knife 14 relative to the cranks 21, 22 of the opposite knife 15 different rotational positions on the crank axis 24, 25, respectively. 26, 27, that is to say that the (lower) knife 15 reaches its highest (culmination) position before the (upper) knife 14 reaches its lowest position (maximum cutting intervention). The cranks 19, 20 assigned to the knife 14 are driven in a controlled manner with regard to the cutting engagement movement of the cutting device 4, 4 ', 5, in a controlled manner after the cranks 21, 22 assigned to the knife 15.
This wake is due to the mutual rotatability of the cranks 20, 22 and. 19, 21 by means of gears 29, 31 respectively. 28, 30 possible or adjustable and lockable and can take place in coordination with the properties of the printed products 2 and the cutting process.
Due to the fact that the cranks 19, 21 and 20, 22 located opposite one another on the printed products 2 or the knives 14, 15 and the conveying device 3 in their approximate range approximately have the same speed, one can speak of a resulting cutting distance on which the cutting intervention takes place.

Damit die Druckprodukte 2 unmittelbar vor dem Schneiden auf der Fördervorrichtung ruhig liegen, bilden die Fördervorrichtung 3, die aus wenigstens zwei seitlich beabstandeten, endlos umlaufenden Bändern besteht, und die Oberkante des Messers 15 während dem Schneideingriff der Schneidvorrichtung 4, 4', 5 eine etwa koplanare Ebene. Die Fig. 2 zeigt, dass das Messer 15 mit seiner Oberkante, vor dem Erreichen seiner höchsten Stellung und unmittelbar vor Schnittbeginn die koplanare Ebene erreicht hat und anschliessend durch ein geringes Anheben eine Gegenschneidbewegung ausübt. Diese Möglichkeit dokumentiert die Anpassungsfähigkeit der Schneidvorrichtungen 4, 4' 5 an die wählbaren Gegebenheiten beim Beschneiden der Druckprodukte.
In Fig. 2 ist weiter erkennbar, dass die Messer 14, 15 einen sich in Förderrichtung der Druckprodukte 2 verengenden Schneidspalt 32 bilden, dessen Einzugswinkel durch eine Verstell- und Feststellvorrichtung 71 veränderbar ist, was auf die Eigenschaften der zu schneidenden Druckprodukte 2 zurückzuführen ist. Je flacher der Einzugsspalt, umso höher die auf die Druckprodukte 2 einwirkende Schnitt- und Förderleistung.
Zur Verstellbarkeit des Messers 14 ist dieses an einem an den Kurbeln 19, 20 beidenends angelenkten Balken 33 befestigt, die auf ihrer Länge mit Gewindelöchern versehen sind, in denen Schrauben ruhen, welche senkrechte Schlitze in dem Messer 5 durchsetzen.
Als Versteifungshilfe sind die umlaufenden, endlosen Bänder 35 der Fördervorrichtung 3 an einer Führungsvorrichtung 34 abgestützt.
Der vollständigkeithalber weisen wir auf eine weitere, aus sich in einer Reihe folgenden Rollen 36 bestehenden Abstützvorrichtung 37 in der Längsmittelachse der Schneidanlage 1 und eine Führungsanordnung 38 für Anschlagförderkette 39 hin.So that the printed products 2 lie still on the conveying device immediately before cutting, the conveying device 3, which consists of at least two laterally spaced, endlessly circulating belts, and the upper edge of the knife 15 during the cutting engagement of the cutting device 4, 4 ', 5 form an approximately coplanar level. 2 shows that the knife 15 has reached the coplanar plane with its upper edge, before reaching its highest position and immediately before the start of the cut, and then performs a counter-cutting movement by slightly lifting it. This possibility documents the adaptability of the cutting devices 4, 4 '5 to the selectable conditions when trimming the printed products.
In FIG. 2 it can also be seen that the knives 14, 15 form a cutting gap 32 narrowing in the conveying direction of the printed products 2, the feed angle of which can be changed by an adjusting and locking device 71, which is due to the properties of the printed products 2 to be cut. The flatter the feed gap, the higher the cutting and conveying performance acting on the printed products 2.
In order to adjust the knife 14, it is fastened to a bar 33 which is articulated on the cranks 19, 20 at both ends and which are provided with threaded holes along their length, in which screws rest, which penetrate vertical slots in the knife 5.
The circumferential, endless belts 35 of the conveying device 3 are supported on a guide device 34 as a stiffening aid.
For the sake of completeness, we refer to a further support device 37 consisting of rollers 36 in a row in the longitudinal central axis of the cutting system 1 and a guide arrangement 38 for the stop conveyor chain 39.

Zur Minderung der durch die Kurbelbewegung entstehenden Unwucht in den Lagern und des verursachten Lärms, sind auf der einer Kurbel 19 bis 22 an der Kurbelachse 24 bis 27 gegenüberliegenden Seite ausgleichende Gegengewichte 40 befestigt.In order to reduce the unbalance in the bearings and the noise caused by the crank movement, counterweights 40 are attached on the side opposite a crank 19 to 22 on the crank axis 24 to 27.

Unersichtlich ist in der Zeichnung die Notwendigkeit einer für den Kopf- und Fussbeschnitt verschiedener Druckproduktformate vorgesehene Verstellbarkeit der Schneidvorrichtungen 4, 4' hinsichtlich ihres Abstandes quer zur Förderrichtung, wozu eine mit dem Maschinenständer quer zur Förderrichtung wirksame Führungsanordnung vorgesehen sein kann, an welcher die Schneidvorrichtungen 4, 4' beispielsweise durch Spindelantriebe einzeln oder gemeinsam verstell- und feststellbar sind.In the drawing, the necessity of an adjustability of the cutting devices 4, 4 ′ provided for the head and foot trimming of different printed product formats with regard to their distance transversely to the conveying direction, for which purpose a guide arrangement effective with the machine stand transversely to the conveying direction, on which the cutting devices 4 , 4 'can be adjusted and locked individually or together, for example by spindle drives.

Die Fig. 4 und 5 vermitteln eine zum frontseitigen Beschnitt der Druckprodukte 2 vorgesehene Schneidvorrichtung 5, die an den kontinuierlichen Durchlauf der von den Schneidvorrichtungen 4, 4' für den Kopf- und Fussbeschnitt überführten Druckprodukte 2 anschliesst.
Die Überführung, die vorzugsweise, aber nicht in jedem Fall taktgebunden erfolgt, übernehmen die in Förderrichtung über die Schneidvorrichtung 4, 4' hinausreichende Fördervorrichtung 3 und ein mit dieser an deren Abgabeende zusammenwirkender Transporteur 40, an dessen umlaufender Transportkette 41 in gleichmässigen Abständen durch Steuervorrichtungen betätigbare Greifer 42 befestigt sind. Die Anordnungsweise und das Zusammenwirken der Fördervorrichtung 3 mit dem Transporteur 40 kann den Fig. 1 und 5 entnommen werden. Der Antrieb des etwa in der senkrechten Längsmittelebene der Schneidanlage 1 verlaufenden Transporteurs 40, wird vom Zugmittelgetriebe 9 aus bewirkt.
Die Druckprodukte 2 werden von der Fördervorrichtung 3 den im Übernahmebereich bzw. an der Abgabestelle der Fördervorrichtung 3 falzvoraus offenen Greifern 42 zugeschoben bzw. zugeführt, die bei zugestelltem Druckprodukt 2 von einer Steuervorrichtung eingeleitet, durch eine Federkraft schliessen. Die Druckprodukte 2 werden sodann auf einem Führungstisch 43, der im Schneideingriffsbereich der Schneidvorrichtung 5 unterbrochen ist, durch letztere hindurchbewegt bzw. -gezogen.4 and 5 convey a cutting device 5 provided for the front trimming of the printed products 2, which connects to the continuous passage of the printed products 2 transferred by the cutting devices 4, 4 'for the head and foot trimming.
The transfer, which is preferably, but not in any case, cycle-based, is carried out by the conveying device 3, which extends beyond the cutting device 4, 4 'in the conveying direction, and a transporter 40 which cooperates with the latter at the discharge end thereof and can be actuated at regular intervals by control devices on the circulating conveying chain 41 thereof Grippers 42 are attached. The arrangement and the interaction of the conveyor 3 with the conveyor 40 can be seen in FIGS. 1 and 5. The drive of the conveyor 40, which runs approximately in the vertical longitudinal center plane of the cutting system 1, is effected by the traction mechanism gear 9.
The printed products 2 are pushed or fed by the conveying device 3 to the grippers 42, which are open in the take-over area or at the delivery point of the conveying device 3 and which are fed in by a control device when the printed product 2 is delivered, and close by a spring force. The printed products 2 are then on a guide table 43, the is interrupted in the cutting engagement area of the cutting device 5, moved or pulled through the latter.

Die an die Schneidvorrichtungen 4, 4' anschliessende Schneidvorrichtung 5 unterscheidet sich von ersteren dadurch, dass ihre Messer 50, 51 mit der Schneidrichtung quer zur Förderrichtung der Fördervorrichtung 3 angeordnet sind. D.h., dass an jeder Seite des Förderweges der Druckprodukte 2 wiederum zwei zusammenwirkende Kurbeltriebe 48, 49 bzw. 48', 49' vorgesehen sind, die mit den gegenüberliegenden Kurbeltrieben 48, 49 bzw. 48' 49' durch die Messer 50, 51 verbunden sind, wobei die Messer 50, 51 an den endseitig mit den in Förderrichtung beabstandeten Kurbeln der Kurbeltriebe 48, 49 bzw. 48' 49' angelenkten Betätigungsgliedern 44 bis 47 befestigt sind.
Im Gegensatz zu den unterschiedlichen Winkelstellungen der Kurbeln 19 bis 22 bei den ebenfalls synchron angetriebenen Kurbeltrieben 17, 18 resp. 17' 18' für Kopf- bzw. Fussbeschnitt eines Druckproduktes 2, sind die Winkel der Kurbeln 52 bis 55 an den Kurbelachsen 56 bis 59 etwa paarweise symmetrisch gegenüberliegend von den Druckprodukten 2 ausgerichtet, sodass die Messer 50, 51 eine quer zur Förderrichtung verlaufende Schneidebene bilden und der Schneideingriff auf einer parallel zur Förderrichtung sich ergebenden Schneidstrecke erfolgt. Auf dieser Schneidstrecke bewegen sich die Druckprodukte 2 wenigstens annähernd so schnell wie die Messer 50, 51, die während ihrer Umlaufbewegung ihre senkrechte Schnittstellung nicht ändern.
Von den die Messer 50, 51 aufnehmenden Querbalken 64, hier der untere, bilden eine Auflage der Druckprodukte beim Schneiden.
Zur Stabilisierung der Druckprodukte 2 ist gemäss Fig. 3 ein zumindest über die Schneidstrecke sich erstreckender, die Druckprodukte 2 gegen die Oberseite des Balkens 33 pressender Niederhalter 65, mit mehreren in Förderrichtung nebeneinandergereihten Pressrollen vorgesehen, die beispielsweise gegen einen Federkraftspeicher 72 auf die Druckprodukte 2 gedrückt werden.The cutting device 5 adjoining the cutting devices 4, 4 ′ differs from the former in that its knives 50, 51 are arranged with the cutting direction transverse to the conveying direction of the conveying device 3. This means that two cooperating crank drives 48, 49 and 48 ', 49' are in turn provided on each side of the conveying path of the printed products 2, which are connected to the opposite crank drives 48, 49 and 48 '49' by the knives 50, 51 , wherein the knives 50, 51 are attached to the actuators 44 to 47 articulated at the ends with the cranks of the crank drives 48, 49 and 48 '49' spaced apart in the conveying direction.
In contrast to the different angular positions of the cranks 19 to 22 in the synchronously driven crank drives 17, 18 and. 17 '18' for head or foot trimming of a printed product 2, the angles of the cranks 52 to 55 on the crank axes 56 to 59 are aligned approximately in pairs symmetrically opposite one another from the printed products 2, so that the knives 50, 51 have a cutting plane running transversely to the conveying direction form and the cutting operation takes place on a cutting path that is parallel to the conveying direction. The printed products 2 move at least approximately as fast as the knives 50, 51 on this cutting path, which do not change their vertical cutting position during their orbital movement.
The crossbeams 64, here the lower one, receiving the knives 50, 51 form a support for the printed products during cutting.
To stabilize the printed products 2, according to FIG. 3, a holding-down device 65, which extends at least over the cutting section and presses the printed products 2 against the upper side of the beam 33, is provided with a plurality of press rollers lined up in the conveying direction, which are pressed against the printed products 2, for example, against a spring energy store 72 become.

Der Antrieb der Schneidvorrichtung 5 wird über Antriebsritzel 60 eingeleitet und ein Zwischenrad 61 sorgt für eine gleichsinnige Drehung der Kurbeln 52, 53 bzw. 52' 53' und entsprechend gegensinnige bei den Kurbeln 54, 55 bzw. 54' 55' auf der gegenüberliegenden Seite des Transporteurs 40. Dieser besteht gemäss Fig. 5 aus zwei jeweils seitlich der senkrechten Längsmittelebene verlaufenden Transportketten 41, die durch einen quergerichteten, die Greifer 42 tragenden Distanzhalter 62 verbunden sind. Die ausserhalb des Schneidbereiches der Schneidvorrichtung 5 angeordneten Transportketten 41, sind an stationären Führungsstegen 63 abgestützt.The drive of the cutting device 5 is initiated via the drive pinion 60 and an intermediate wheel 61 ensures that the cranks 52, 53 and 52 '53' rotate in the same direction and correspondingly in the opposite direction for the cranks 54, 55 and 54 '55' on the opposite side of the 5 consists of two transport chains 41 each running to the side of the vertical longitudinal center plane, which are connected by a transverse spacer 62 carrying the grippers 42. The transport chains 41 arranged outside the cutting area of the cutting device 5 are supported on stationary guide webs 63.

Fig. 6 zeigt eine Ausführungsform eines Greifers 42 in der geschlossenen Stellung, bei welcher der bewegliche Greiferteil 66 gegen den mit den Transportketten 41 verbundenen stationären Greiferteil 67 gepresst wird. Das Schliessen des Greifers 42 erfolgt durch Federkraft, gegen die mittels des an einer Steuerbahn auflaufenden Doppelhebels 68 der Greifer 42 gelüftet wird.FIG. 6 shows an embodiment of a gripper 42 in the closed position, in which the movable gripper part 66 is pressed against the stationary gripper part 67 connected to the transport chains 41. The gripper 42 is closed by spring force, against which the gripper 42 is released by means of the double lever 68 running on a control track.

Anstelle einer Anordnungsweise der Schneidvorrichtungen 4, 4', 5 wie sie in Fig. 1 veranschaulicht ist, besteht nach Fig. 7 eine weitere Aufstellungsform der Schneidvorrichtungen für Kopf-/Fuss- und Frontbeschnitt an einem Druckprodukt.
Grundsätzlich sind bei der Schneidanlage 1 nach Fig. 7 die Schneidstationen/Schneidvorrichtungen bezüglich Förderrichtung der Druckprodukte 2 rechtwinklig zueinander angeordnet, wobei zwischen den Schneidstationen eine die Druckprodukte 2 nach dem Kopf-/Fussbeschnitt in eine um 90° geänderte Förderrichtung versetzende Umlenkvorrichtung 69 angeordnet ist.
Diese Umlenkrichtung 69 kann als rotierendes Trägerorgan mit am Umfang befestigten Greifern ausgebildet sein, welchen die Druckprodukte nach dem Kopf-/Fussbeschnitt durch eine Fördervorrichtung 3 zugeführt und nach der Umlenkung an einen Transporteur 40 für den anschliessenden Frontbeschnitt abgegeben werden -etwa wie in den Fig. 1 bis 6 gezeigt-, oder dass anstelle eines Trägerorgans mit Greifern eine Umlenkrolle vorgesehen ist, durch welche die an einer endlosen Transportkette befestigten Greifer an die folgende Schneidvorrichtung für den Frontbeschnitt geführt werden.
Eine solche Ausführungsform wäre insofern vorteilhaft, als dass für den Frontbeschnitt an den Druckprodukten 2 die gleiche Schneidvorrichtung in gleicher Anordnungsweise benutzt werden könnte wie sie schon für Kopf- und/oder für Fussbeschnitt der Druckprodukte verwendet wird.Instead of arranging the cutting devices 4, 4 ', 5 as illustrated in FIG. 1, there is a further arrangement of the cutting devices for head / foot and front trimming on a printed product according to FIG. 7.
7, the cutting stations / cutting devices are arranged at right angles to one another with respect to the conveying direction of the printed products 2, wherein a deflection device 69 which displaces the printed products 2 after the head / foot trimming into a conveying direction changed by 90 ° is arranged between the cutting stations.
This direction of deflection 69 can be designed as a rotating support member with grippers attached to the circumference, to which the printed products are fed after the head / foot trimming by a conveyor device 3 and, after the deflection, are conveyed to a transporter 40 for the subsequent front trimming, as in FIGS. 1 to 6 shown- or that instead a support member with grippers a deflection roller is provided, through which the grippers attached to an endless transport chain are guided to the following cutting device for the front trimming.
Such an embodiment would be advantageous in that the same cutting device in the same arrangement could be used for the front trimming of the printed products 2 as is already used for head and / or foot trimming of the printed products.

Claims (29)

Verfahren zum Beschneiden von flachen Druckprodukten längs einer vorgegebenen Schnittlinie, die entlang einer zu ihrer Ebene parallelen Förderrichtung hintereinander kontinuierlich gefördert werden, bei dem die Druckprodukte zwischen zwei einander gegenüberliegenden Messern hindurchgeführt werden, dadurch gekennzeichnet, dass die beiden Messer in einer zur Ebene der Druckprodukte im wesentlichen senkrechten Richtung miteinander in Schneideingriff bewegt werden.Method for trimming flat printed products along a predetermined cutting line, which are continuously conveyed in succession along a conveying direction parallel to their plane, in which the printed products are passed between two opposing knives, characterized in that the two knives are in one to the plane of the printed products in substantially vertical direction can be moved in cutting engagement. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die vorgegebene Schnittlinie parallel zur Förderrichtung der Druckprodukte angeordnet ist.A method according to claim 1, characterized in that the predetermined cutting line is arranged parallel to the direction of conveyance of the printed products. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die vorgegebene Schnittlinie quer zur Förderrichtung der Druckprodukte angeordnet ist.A method according to claim 1, characterized in that the predetermined cutting line is arranged transversely to the conveying direction of the printed products is. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass wenigstens einem der Messer eine in der Förderrichtung der Druckprodukte wirkende Bewegungskomponente erteilt wird.Method according to one of claims 1 to 3, characterized in that at least one of the knives is given a movement component acting in the conveying direction of the printed products. Verfahren nach Anspruch 4, dadurch gekennzeichnet, dass die Bewegungskomponente der Messer im Schneideingriff etwa der Förderbewegung der Druckprodukte entspricht.A method according to claim 4, characterized in that the movement component of the knife in cutting engagement corresponds approximately to the conveying movement of the printed products. Einrichtung zum Beschneiden von flachen Druckprodukten (2) längs einer vorgegebenen Schnittlinie, mit einer Fördervorrichtung (3), durch welche die Druckprodukte entlang einer zu ihrer Ebene parallelen Förderrichtung hintereinander kontinuierlich förderbar sind, und mit einer zwei einander gegenüberstehende Messer (14, 15; 14, 15; 50, 51) aufweisenden Schneidvorrichtung (4, 4', 5), wobei die Druckprodukte (2) von der Fördervorrichtung (3) zwischen den beiden Messern (14, 15; 14' 15'; 50, 51) hindurchführbar sind, sowie mit einer Antriebsvorrichtung (16) für wenigstens eines der Messer (14, 15; 14', 15'; 50, 51) dadurch gekennzeichnet, dass durch die Antriebsvorrichtung (16) eine zur Ebene der Druckprodukte (2) im wesentlichen senkrechte Schneideingriffsbewegung der beiden Messer (14, 15; 14', 15'; 50, 51) erzeugbar ist.Device for trimming flat printed products (2) along a predetermined cutting line, with a conveying device (3), by means of which the printed products can be conveyed continuously one behind the other along a conveying direction parallel to their plane, and with a knife (14, 15; 14 facing each other) , 15; 50, 51) having cutting device (4, 4 ', 5), the printed products (2) being able to be passed through by the conveying device (3) between the two knives (14, 15; 14' 15 '; 50, 51) , as well as with A drive device (16) for at least one of the knives (14, 15; 14 ', 15'; 50, 51), characterized in that the drive device (16) causes a cutting engagement movement of the two knives which is essentially perpendicular to the plane of the printed products (2) (14, 15; 14 ', 15'; 50, 51) can be generated. Einrichtung nach Anspruch 6, dadurch gekennzeichnet, dass die Messer (14, 15; 14' 15') mit ihrer Schneidrichtung parallel zur Förderrichtung angeordnet sind.Device according to claim 6, characterized in that the knives (14, 15; 14 '15') are arranged with their cutting direction parallel to the conveying direction. Einrichtung nach Anspruch 6, dadurch gekennzeichnet, dass die Messer (50, 51) mit ihrer Schneidrichtung quer zur Förderrichtung angeordnet sind.Device according to claim 6, characterized in that the knives (50, 51) are arranged with their cutting direction transverse to the conveying direction. Einrichtung nach einem der Ansprüche 6 bis 8, dadurch gekennzeichnet, dass die Messer (14, 15; 14' 15'; 50, 51) in der Form länglicher Messerklingen ausgebildet sind.Device according to one of claims 6 to 8, characterized in that the knives (14, 15; 14 '15'; 50, 51) are designed in the form of elongated knife blades. Einrichtung nach Anspruch 7 oder 8, dadurch gekennzeichnet, dass wenigstens eines der Messer (14, 15; 14' 15') von der Antriebsvorrichtung (16) parallel zu der Förderrichtung der Fördervorrichtung hin- und herbewegbar ist.Device according to claim 7 or 8, characterized in that at least one of the knives (14, 15; 14 '15') can be moved back and forth by the drive device (16) parallel to the conveying direction of the conveying device. Einrichtung nach Anspruch 10, dadurch gekennzeichnet, dass die Antriebsvorrichtung (16) durch wenigstens einen mit der Schneidvorrichtung (4, 4', 5) gekoppelten Kurbeltrieb (17, 17', 18, 18', 48, 48', 49, 49') gebildet ist.Device according to claim 10, characterized in that the drive device (16) by at least one crank drive (17, 17 ', 18, 18', 48, 48 ', 49, 49') coupled to the cutting device (4, 4 ', 5). ) is formed. Einrichtung nach einem der Ansprüche 6 bis 11, dadurch gekennzeichnet, dass der Kurbeltrieb (17, 18; 17', 18') zwei in der Förderrichtung der Fördervorrichtung (3) beabstandete Kurbeln (19 bis 22; 52 bis 55) aufweist, an denen eines der mit ihrer Schneidrichtung parallel zur Förderrichtung angeordneten Messer (14, 15; 14', 15'; 50, 51) endseitig angelenkt ist.Device according to one of claims 6 to 11, characterized in that the crank mechanism (17, 18; 17 ', 18') has two cranks (19 to 22; 52 to 55) spaced in the conveying direction of the conveying device (3), on which one of the knives (14, 15; 14 ', 15'; 50, 51) arranged parallel to the conveying direction is articulated at the end. Einrichtung nach einem der Ansprüche 6 bis 11, dadurch gekennzeichnet, dass der Kurbeltrieb (17, 18; 17', 18') zwei in der Förderrichtung der Fördervorrichtung (3) beabstandete Kurbeln (52 bis 55) aufweist, an denen ein sich in der Förderrichtung erstreckendes Betätigungsglied (44, 45; 46, 47) endseitig angelenkt ist, wobei eines der mit ihrer Schneidrichtung quer zur Förderrichtung angeordneten Messer (50, 51) an dem Betätigungsglied (44, 45; 46, 47) angeordnet ist.Device according to one of claims 6 to 11, characterized in that the crank mechanism (17, 18; 17 ', 18') has two cranks (52 to 55) spaced apart in the conveying direction of the conveying device (3), one of which is located in the Actuator extending conveying direction (44, 45; 46, 47) is articulated at the end, one of the knives (50, 51) arranged with its cutting direction transverse to the conveying direction being arranged on the actuating member (44, 45; 46, 47). Einrichtung nach Anspruch 13, dadurch gekennzeichnet, dass wenigstens eines der Messer (14, 15; 14' 15'; 50, 51) einer Schneidvorrichtung (4, 4', 5) verstell- und feststellbar ausgebildet ist.Device according to claim 13, characterized in that at least one of the knives (14, 15; 14 '15'; 50, 51) of a cutting device (4, 4 ', 5) is designed to be adjustable and lockable. Einrichtung nach einem der Ansprüche 13 und 14, dadurch gekennzeichnet, dass der Antrieb der Kurbeln (19 bis 22) von einem zwischen den beiden Kurbeln (19, 20 resp. 21, 22) angeordneten gemeinsamen Antriebsrad (23) abgeleitet ist.Device according to one of claims 13 and 14, characterized in that the drive of the cranks (19 to 22) is derived from a common drive wheel (23) arranged between the two cranks (19, 20 and 21, 22). Einrichtung nach einem der Ansprüche 11 bis 15, dadurch gekennzeichnet, dass die einem Messer (14, 15; 14', 15'; 50, 51) einer Schneidvorrichtung (4, 4' 5) zugeordneten Kurbeln (19, 20) hinsichtlich Schneideingriffsbewegung gegenüber den dem anderen Messer (15, 14; 15' 14'; 50, 51) zugeordneten Kurbeln (21, 22) nachlaufend gesteuert sind.Device according to one of claims 11 to 15, characterized in that the cranks (19, 20) associated with a knife (14, 15; 14 ', 15'; 50, 51) of a cutting device (4, 4 '5) with respect to the cutting engagement movement the other knife (15, 14; 15 '14'; 50, 51) associated cranks (21, 22) are controlled afterwards. Einrichtung nach Anspruch 16, dadurch gekennzeichnet, dass der Nachlauf der Kurbeln (19, 20) eines Messers (14, 15; 14' 15') einstellbar ausgebildet ist.Device according to claim 16, characterized in that the wake of the cranks (19, 20) of a knife (14, 15; 14 '15') is adjustable. Einrichtung nach einem der Ansprüche 11 bis 16, dadurch gekennzeichnet, dass die Kurbeln (19 bis 22) bzw. die Messer (14, 15; 14' 15') und die Fördervorrichtung (3) in ihrem Näherungsbereich etwa die gleiche Geschwindigkeit aufweisen.Device according to one of claims 11 to 16, characterized in that the cranks (19 to 22) or the knives (14, 15; 14 '15') and the conveying device (3) have approximately the same speed in their proximity range. Einrichtung nach einem der Ansprüche 11 bis 16, dadurch gekennzeichnet, dass die aus endlos umlaufenden Bändern gebildete Fördervorrichtung (3) und die Oberkante des Messers (15) während dem Schneideingriff der Schneidvorrichtung (4, 4', 5) eine etwa koplanare Förderebene bilden.Device according to one of claims 11 to 16, characterized in that the conveyor device (3) formed from endlessly rotating belts and the upper edge of the knife (15) form an approximately coplanar conveyor plane during the cutting engagement of the cutting device (4, 4 ', 5). Einrichtung nach Anspruch 19, dadurch gekennzeichnet, dass die Fördervorrichtung (3) im Schneidbereich eine auf Bänder stützend einwirkende Führungsvorrichtung (34) aufweist.Device according to claim 19, characterized in that the conveying device (3) in the Cutting area has a guiding device (34) acting on bands. Einrichtung nach einem der Ansprüche 11 bis 13, dadurch gekennzeichnet, dass die Kurbeln (19 bis 22) jeweils mit einem an der Kurbelachse (24 bis 27) gegenüberliegenden Gegengewicht (70) verbunden ist.Device according to one of claims 11 to 13, characterized in that the cranks (19 to 22) are each connected to a counterweight (70) opposite on the crank axis (24 to 27). Einrichtung nach Anspruch 11, dadurch gekennzeichnet, dass ein die Druckprodukte (2) im Bereich der Schneidvorrichtung (5) fördernder, gesteuerter Greifer (42) vorgesehen ist, der synchron mit dem Kurbeltrieb (48, 49; 48', 49') umläuft.Device according to claim 11, characterized in that a controlled gripper (42) is provided which conveys the printed products (2) in the area of the cutting device (5) and rotates synchronously with the crank mechanism (48, 49; 48 ', 49'). Einrichtung nach Anspruch 6, dadurch gekennzeichnet, dass die Fördervorrichtung (3) ein endlos umlaufendes Band mit die Relativlage der Druckprodukte (2) inbezug auf die Schneidvorrichtung (4, 4') festlegenden Anschlägen (12) aufweist, an denen die vorauseilende Kante der Druckprodukte (2) in Anlage gehalten ist.Device according to claim 6, characterized in that the conveying device (3) has an endlessly circulating belt with stops (12) defining the relative position of the printed products (2) with respect to the cutting device (4, 4 '), on which the leading edge of the printed products (2) is held in investment. Einrichtung nach einem der Ansprüche 6 bis 23, dadurch gekennzeichnet, dass ein durch die an wenigstens einer Transportkette (41) befestigten Greifer (42) gebildeter Transporteurs (40) mit seinem vorderen Übernahmeende sich über das Abgabeende der Fördervorrichtung (3) erstreckt.Device according to one of claims 6 to 23, characterized in that a transporter (40) formed by the grippers (42) attached to at least one transport chain (41) extends with its front takeover end over the delivery end of the conveyor device (3). Einrichtung nach einem der Ansprüche 6 bis 13, dadurch gekennzeichnet, dass eines der Messer (14, 15; 14', 15' bzw. 50, 51) mit einer Auflagefläche für die Druckprodukte (2) im Schneidbereich ausgebildet ist.Device according to one of claims 6 to 13, characterized in that one of the knives (14, 15; 14 ', 15' or 50, 51) is formed with a support surface for the printed products (2) in the cutting area. Einrichtung nach den Ansprüchen 7 und 25, dadurch gekennzeichnet, dass gegenüberliegend eines der Messer (14, 15; 14', 15' bzw. 50, 51) einer Schneidvorrichtung (4, 4', 5) ein auf die Druckprodukte (2) pressend einwirkender Niederhalter (65) vorgesehen ist.Device according to claims 7 and 25, characterized in that opposite one of the knives (14, 15; 14 ', 15' or 50, 51) of a cutting device (4, 4 ', 5) pressing onto the printed products (2) acting hold-down device (65) is provided. Einrichtung nach einem der Ansprüche 6 bis 12, dadurch gekennzeichnet, dass die an der Fördervorrichtung quer gegenübergestellten Schneidvorrichtungen (4, 4') hinsichtlich ihres Abstandes an einer mit dem Maschinenständer (6) verbundenen Führungsanordnung verstell- und feststellbar ausgebildet sind.Device according to one of claims 6 to 12, characterized in that the cutting devices (4, 4 ') which are arranged transversely opposite one another on the conveyor device with regard to Distance on a guide arrangement connected to the machine stand (6) are designed to be adjustable and lockable. Schneidanlage nach den Ansprüchen 6 bis 27, bestehend aus zwei sich beidseits eines Förderstromes beabstandeter Druckprodukte (2) gegenüberstehenden, für Kopf- und Fussbeschnitt vorgesehenen Schneidvorrichtungen (4; 4') und einer diesen für einen kontinuierlichen Schneidvorgang der Druckprodukte (2) in Förderrichtung nachgeschalteten Schneidvorrichtung (5) für den Frontbeschnitt der Druckprodukte (2).Cutting system according to claims 6 to 27, consisting of two cutting devices (4; 4 '), which are arranged on both sides of a conveying stream and are arranged opposite one another for head and foot trimming, and a downstream one for a continuous cutting process of the printing products (2) in the conveying direction Cutting device (5) for the front trimming of the printed products (2). Schneidanlage nach einem der Ansprüche 6 bis 27, bestehend aus zwei sich beidseits eines Förderstromes beabstandeter Druckprodukte (2) gegenüberstehenden, für Kopf- und Fussbeschnitt vorgesehenen Schneidvorrichtungen (4, 4') und einer diesen für einen kontinuierlichen Schneidvorgang der Frontseite der Druckprodukte (2) unter Zwischenschaltung einer zur Richtungsänderung des Förderstroms der Druckprodukte vorgesehene Umlenkvorrichtung (69) nachgeschalteten, dem Falz der Druckprodukte (2) gegenüberliegenden Schneidvorrichtung (4,4').Cutting system according to one of claims 6 to 27, consisting of two cutting devices (4, 4 '), which are arranged opposite one another on both sides of a conveying stream and are intended for head and foot trimming, and one for a continuous cutting process of the front side of the printed products (2) with the interposition of a deflection device (69) provided for changing the direction of the flow of the printed products downstream cutting device (4,4 ') opposite the fold of the printed products (2).
EP95810490A 1994-08-12 1995-07-31 Method and apparatus for cutting flat printed products along a predetermined line of cut Expired - Lifetime EP0698451B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH2489/94 1994-08-12
CH248994 1994-08-12
CH02489/94A CH689449A5 (en) 1994-08-12 1994-08-12 Cutting process for flat print products along preset cutting line

Publications (2)

Publication Number Publication Date
EP0698451A1 true EP0698451A1 (en) 1996-02-28
EP0698451B1 EP0698451B1 (en) 1999-06-16

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ID=4234951

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95810490A Expired - Lifetime EP0698451B1 (en) 1994-08-12 1995-07-31 Method and apparatus for cutting flat printed products along a predetermined line of cut

Country Status (5)

Country Link
US (1) US6152002A (en)
EP (1) EP0698451B1 (en)
JP (1) JP3977447B2 (en)
CH (1) CH689449A5 (en)
DE (1) DE59506208D1 (en)

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EP1004411A1 (en) * 1998-11-26 2000-05-31 Grapha-Holding Ag Apparatus for cutting sheets or webs made out of paper or plastic
EP1182052A2 (en) * 2000-08-10 2002-02-27 Wohlenberg Buchbindesysteme GmbH Method and device for processing a printed product in sheet form
US6615699B2 (en) 1999-09-17 2003-09-09 Ferag Ag Method and device for cutting continuously conveyed, flat objects
US6796209B2 (en) 2000-06-26 2004-09-28 Grapha-Holding Ag Cutting machine for automatic trimming of printed products
EP1491303A1 (en) * 2003-06-27 2004-12-29 Kolbus GmbH & Co. KG Method and apparatus for trimming printed products
WO2007045919A2 (en) * 2005-10-17 2007-04-26 Ibis Integrated Bindery Systems Ltd Apparatus for triming books and signatures
EP2130654A1 (en) * 2008-06-05 2009-12-09 Müller Martini Holding AG Device for cutting the header and footer of printed products fed through a cutter
EP2218585A1 (en) 2009-02-11 2010-08-18 Müller Martini Holding AG Method and wire stitcher for processing printed sheets
EP2345517A1 (en) * 2010-01-18 2011-07-20 MBT S.r.l. Three-sided cutting machine for books

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US8186252B2 (en) * 2008-03-18 2012-05-29 Goss International Americas, Inc. Method and apparatus for trimming and transporting printed products in a trimmer
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EP1004411A1 (en) * 1998-11-26 2000-05-31 Grapha-Holding Ag Apparatus for cutting sheets or webs made out of paper or plastic
US6615699B2 (en) 1999-09-17 2003-09-09 Ferag Ag Method and device for cutting continuously conveyed, flat objects
US6796209B2 (en) 2000-06-26 2004-09-28 Grapha-Holding Ag Cutting machine for automatic trimming of printed products
EP1182052A2 (en) * 2000-08-10 2002-02-27 Wohlenberg Buchbindesysteme GmbH Method and device for processing a printed product in sheet form
EP1182052A3 (en) * 2000-08-10 2003-12-10 Wohlenberg Buchbindesysteme GmbH Method and device for processing a printed product in sheet form
EP1491303A1 (en) * 2003-06-27 2004-12-29 Kolbus GmbH & Co. KG Method and apparatus for trimming printed products
WO2007045919A2 (en) * 2005-10-17 2007-04-26 Ibis Integrated Bindery Systems Ltd Apparatus for triming books and signatures
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EP2130654A1 (en) * 2008-06-05 2009-12-09 Müller Martini Holding AG Device for cutting the header and footer of printed products fed through a cutter
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EP2345517A1 (en) * 2010-01-18 2011-07-20 MBT S.r.l. Three-sided cutting machine for books

Also Published As

Publication number Publication date
JP3977447B2 (en) 2007-09-19
US6152002A (en) 2000-11-28
DE59506208D1 (en) 1999-07-22
CH689449A5 (en) 1999-04-30
JPH08187693A (en) 1996-07-23
EP0698451B1 (en) 1999-06-16

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