EP0673729A1 - Device for cutting printed products - Google Patents
Device for cutting printed products Download PDFInfo
- Publication number
- EP0673729A1 EP0673729A1 EP95810155A EP95810155A EP0673729A1 EP 0673729 A1 EP0673729 A1 EP 0673729A1 EP 95810155 A EP95810155 A EP 95810155A EP 95810155 A EP95810155 A EP 95810155A EP 0673729 A1 EP0673729 A1 EP 0673729A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cutting
- support
- knife
- printed products
- shoulders
- 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
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Classifications
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- 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
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- 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
- B26D1/01—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 does not travel with the work
- B26D1/12—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 does not travel with the work having a cutting member moving about an axis
- B26D1/25—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 does not travel with the work having a cutting member moving about an axis with a non-circular cutting member
- B26D1/34—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 does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut
- B26D1/38—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 does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and coacting with a fixed blade or other fixed member
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- 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
- B26D1/62—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 rotating about an axis parallel to the line of cut, e.g. mounted on a rotary cylinder
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- 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
- B26D7/01—Means for holding or positioning work
- B26D7/02—Means for holding or positioning work with clamping means
- B26D7/025—Means for holding or positioning work with clamping means acting upon planar surfaces
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- 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
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- 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
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- 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
- Y10T83/6483—Tool stations staggered relative to one another
-
- 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
- Y10T83/654—With work-constraining means on work conveyor [i.e., "work-carrier"]
- Y10T83/6542—Plural means to constrain plural work pieces
-
- 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
- Y10T83/658—With projections on work-carrier [e.g., pin wheel]
Definitions
- the invention relates to a device for trimming at least one edge of printed products continuously fed at regular intervals from a conveyor device formed from revolving, pocket-like conveyor units that can be loaded from above, the edges of which protrude from the conveyor units penetrate a cutting device arranged laterally on the conveyor device.
- Knives which are assigned to one another in pairs are provided as the cutting device, which are joined together at the same intervals as the pocket-like conveying units of the conveying device to endlessly driven traction elements, one strand of which runs parallel to a section of the conveying device formed from tractive elements and is driven in the same direction and at the same speed as this is.
- EP - A - 0 367 715 conveys a method for trimming the side edges of continuously conveyed printed products in a continuous process, with each printed product being assigned a trailing, first knife part which is effective in conveying and which moves or moves the printed product at substantially the same speed. drives and brings into contact with one another along a provided cutting edge, such that the first knife part, which corresponds to the conveying unit of a conveying device, and the associated printed product, are guided past a second stationary knife part in order to be brought into cutting engagement therewith.
- a device which has a conveyor device with a plurality of conveyor units rotating on a closed path for receiving the continuously occurring printed products has, wherein the conveyor units on the back of the printed products contain a counter knife and have means to bring the printed products in the conveyor units into contact with the counter knife at least along the intended cutting edge before they pass through a stationary cutting knife or second knife part which with the Counter knife or first knife part of each conveyor unit cooperates, and thus be trimmed along the cutting edge formed. Due to the sudden cutting forces, such a design requires a high level of design effort in order to be able to achieve a stability with the conveyor units that conveys the necessary cutting quality. It thus turns out to be unfavorable for the cutting process if the conveyor units suspended on traction elements and moved in longitudinal guides with lateral play are exposed to high loads.
- the object of the invention is therefore to provide a device for trimming printed products according to the type mentioned, in which the disadvantages mentioned do not occur due to a different construction compared to the known constructions, or in which the required cut quality and the inherent stability required in a simple manner Way can be achieved.
- this object is achieved in that the cutting device formed from at least one knife is set back on the back of the printed products, from the protruding edge and opposite the knife during the cutting process, can be brought into contact at least approximately over the cutting length, in the same direction and in time with the supplied printed products driven, at least one shoulder supporting device is assigned.
- This configuration allows the cutting process keep occurring forces away from the conveyor and perform the cutting process in a stable environment.
- the support device is advantageously designed to be rotatable about an axis arranged parallel to the cutting edge and has several shoulders distributed around the circumference at a distance from the conveying units of the conveying device, so that the cutting forces are not transmitted to the conveying device.
- a device 1 for trimming several edges of printed products 2 which are fed at regular intervals, for example from a rotary printing press or a saddle stitcher.
- the latter are fed in from pocket-type conveyor units 3 of a conveying device 4 which can be loaded from above for transport.
- the conveyor units 3 are designed with endlessly driven traction elements 6 rotating around at least two spaced rollers 5 and possibly adjustable in terms of their absorption capacity or to the size of the load or. of the printed products 2, which are clamped in the conveyor units during the cutting process.
- the course of the run of the conveying device 4 is provided obliquely upwards, so that the printed products 2 occurring in the conveying units 3 can lie flatly stretched against the rear wall of the conveying units 3.
- Retaining elements ensure that the printed products 2 are held on the rear wall of the conveyor units 3 after they have taken up the position for trimming the edges, for example with the aid of guide means.
- two continuously arranged belts 6, which are arranged at a lateral distance from one another and offer a support surface and preferably run at the same speed, are provided below the conveyor units 3 and can also be seen in FIG. 2.
- the lateral guidance of the printed products 2 is carried out in a similar manner by means of preferably adjustable guide belts 7 arranged on the side of the conveying device 4 (see also FIG. 3).
- Static repellants or other known means could also be used for this purpose.
- the obliquely upward course of the conveying device 4, which favors a flat lying of the supplied printed products 2 in the conveying units 3, is not mandatory, it could also be arranged horizontally.
- FIG. 4 illustrates a cutting device 8 belonging to the device 1, as is shown in the arrangement, for example, in FIGS. 1 and 3.
- Reference symbol 9 indicates the cut edges for the head and / or foot side or the open side edge of a printed product 2 to be trimmed.
- the cutting edge 10 On the cutting edge 9 lies the cutting edge 10, which is opposite to the conveying direction of the printed products, of a stationary knife 11, which protrudes beyond the maximum width of the sides of a printed product 2 and is removably attached to a support 12.
- the cutting edge can deviate from the perpendicular to the conveying direction at an oblique angle and extend over the cutting length, so that the cutting is carried out over a short time.
- the support 12 is arranged so as to be rotatable about an axis 13 running perpendicular to the conveying direction and parallel to the cutting edge, the distance of which is variable perpendicular to the conveying device.
- the cutting edge 10 of the knife 11 can also be adjusted parallel to the conveying direction.
- the conveying device 4 or each conveying unit 3 is assigned a supporting device 14 which is driven in the cutting area about the axis 13 and rotates in the same direction. printed products 2 transported by the conveying device 4 before and during the cutting process on the back of the printed products 2, which supports them beneath the cutting edge 9.
- the drum-shaped support device 14 has distributed around the circumference, a rotating one running parallel to the surface lines Cage-forming strips 15, which are formed on the front edge in the direction of rotation as shoulders 16 resting against the rear sides of the printed products 2 set back from the cutting edge 9.
- the distances between the shoulders 16 on the circumference of the support device 14 correspond to the distances between the conveyor units 3 on the conveyor device 4, but can also be selected to be shorter or longer.
- the shoulder 16 can be designed as a counter knife, for which purpose the end facing the cutting edge 10 of the knife 11 acts as a cutting edge. It is advantageous if the shoulders 16 are interchangeably attached to the strips 15, like the knife on the support 12.
- the strips 15, which have the shoulders 16, are designed as sections of a drum rotating around the axis 13 and result in a cage-like rotor.
- the support 12 can also be designed for a plurality of knives 11 to be fastened, both with a stationary knife, so that a quick knife change can be carried out; and also in the case of a rotationally driven cutting device 8, in which one or more knives 11 counteract in the cutting area of the conveying device 4 or cooperate with the shoulders 16 of the supporting device in the area of their closest approach to the conveying device 4.
- the support 12 is mounted on a shaft 17.
- the latter and the cutting device 8 respectively.
- the support 12 can, as shown and known in cross cutters, be designed to remove chips.
- the shaft 17 is hollow, the cavity is connected to a pressure or vacuum source, and the support 12 is equipped with a sector-like discharge space 18 connecting the cavity of the shaft 17 with the cutting area, which is delimited by the strips 15 rotating outside the knife (s) 11 becomes.
- Printing sheet 2 can be formed with the aid of a counter bar 24, a counter-holding element, which rests against the printed product 2 on the opposite side from the shoulder 16.
- the counter bar 24 conveys the constructive means and the mode of operation of the counter bar 24 as a counter holding element.
- the latter is on both sides of the support device 14 on a suspension 19, each consisting of a disc 20 which is rotatably mounted coaxially to the axis 13 and on the circumference of which the counter strip 24 is fastened.
- the counter bar 24 is, for example, with the force of a spring or pneumatically, ie due to the printed products to be processed with different thicknesses compliant against the printed product 2 or. pressed against the shoulder 16.
- a tension spring 21 is noted in FIG. 5, which engages on the disk 20 and thereby presses the counter-strip 24 in rotation with the dash-dotted printed product 2.
- This contact pressure can be eliminated by a controlled lever device 22 acting on the disks 20, which is influenced by a control track 23 that is stationary with respect to the latter.
- the lever device 22 is mounted on a pivot axis 25 connected to the support device 14 and has two lever arms 26, 27, of which one 26 is positively coupled with the pivotable end to the disks 20, while the other lever arm 27 at the free end one at the Control path 23 has control roller 28 extending.
- FIG. 6 An alternative embodiment of a cutting device 8 in cooperation with the conveying device 4 is illustrated in FIG. 6.
- the cutting device 8 consists of a support 12 equipped with knives 11 on the circumference, which is driven on the shaft 17 about the axis 13, so that it moves in the cutting area on the conveying device 4 in the same direction as this, but at a higher speed.
- the same Sense of rotation like the knives, but the speed of the conveying device 4 have the strips 15 of the support device 14, which are coaxial to the axis 13 and of the drum-shaped support device 14 which surrounds the rotating cutting device 8, the trailing shoulder 16 of which supports a printed product 2 in each case on the notice board.
- a counter strip 24 of a counter-holding element directed against the shoulder 16 is again provided, which, however, in this embodiment according to FIG. 6 is pressed against the printed product 2 by cutting by accelerating its rotational speed. 24 'conveys the position of the counter bar after cutting in the starting position.
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- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Cutting Devices (AREA)
- Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
Abstract
Description
Die Erfindung betrifft eine Einrichtung zum Beschneiden mindestens einer Kante von in regelmässigen Abständen einer aus umlaufenden, von oben beschickbaren taschenartigen Fördereinheiten gebildeten Fördervorrichtung ununterbrochen zugeführten Druckprodukten, deren an den Fördereinheiten vorstehenden Kanten eine an der Fördervorrichtung seitlich angeordnete Schneidvorrichtung durchsetzen.The invention relates to a device for trimming at least one edge of printed products continuously fed at regular intervals from a conveyor device formed from revolving, pocket-like conveyor units that can be loaded from above, the edges of which protrude from the conveyor units penetrate a cutting device arranged laterally on the conveyor device.
Eine solche Einrichtung ist durch die CH - A - 668 216 bekanntgeworden.
Als Schneidvorrichtung sind paarweise einander zugeordnete Messer vorgesehen, die vereint in denselben Abständen wie die taschenartigen Fördereinheiten der Fördervorrichtung an endlos umlaufend angetriebenen Zugorganen befestigt sind, deren eines Trum parallel zu einem Abschnitt der aus Zugorganen gebildeten Fördervorrichtung verläuft und gleichsinnig sowie mit gleicher Geschwindigkeit wie diese angetrieben ist.
D.h. in der Praxis, dass die aus den taschenartigen Fördereinheiten zum Beschneiden herausragenden Kanten der Druckprodukte zwischen- die einander paarweise zugeordneten Messer einer ge öffneten Schneidvorrichtung geführt und anschliessend auf den durch die benachbarten parallelen Trums der Zugorgane der Schneidvorrichtung und der Fördervorrichtüng gebildeten gemeinsamen Abschnitt ausgerichtet sowie fixiert und anschliessend beschnitten werden.
Auf dem gemeinsamen Abschnitt ergibt sich bei der bekannten Ausführung zwischen den Fördereinheiten und den Messerpaaren der Schneidvorrichtung bzw. der Schnittkante ein respektabler Abstand, der die geforderte Schnittqualität insbesondere bei relativ dünnen Druckprodukten nicht gewährleistet.
Dickere Druckprodukte, bei denen eine höhere Schnittkraft notwendig ist, sind aufgrund des erforderlichen Führungsspiels an der vorgeschlagenen, kettengeführten Schneidvorrichtung und der Fördervorrichtung sowie zwischen diesen einer unzuverlässigen Schnittgenauigkeit ausgesetzt; hingegen bedarf es keiner genauen Einstellung der Schnittposition entlang des gemeinsamen Abschnittes von Fördervorrichtung und Schneidvorrichtung.Such a device has become known from CH - A - 668 216.
Knives which are assigned to one another in pairs are provided as the cutting device, which are joined together at the same intervals as the pocket-like conveying units of the conveying device to endlessly driven traction elements, one strand of which runs parallel to a section of the conveying device formed from tractive elements and is driven in the same direction and at the same speed as this is.
In practice, this means that the bag-like conveyor units to trim protruding edges of the printed products between the paired knives of a ge opened cutting device and then aligned to the common section formed by the adjacent parallel runs of the traction elements of the cutting device and the conveying device and fixed and then trimmed.
On the common section there is a respectable distance between the conveyor units and the knife pairs of the cutting device or the cutting edge in the known embodiment, which does not guarantee the required cutting quality, particularly in the case of relatively thin printed products.
Thicker printed products, for which a higher cutting force is required, are exposed to an unreliable cutting accuracy due to the required guide play on the proposed chain-guided cutting device and the conveyor device, and between these; on the other hand, no exact adjustment of the cutting position along the common section of the conveyor and cutting device is required.
Die EP - A - 0 367 715 vermittelt ein Verfahren zum Beschneiden der Seitenkanten von kontinuierlich geförderten Druckprodukten in einem Durchlauf-Prozess, wobei jedem Druckprodukt ein nachlaufender förderwirksamer erster Messerteil zugeordnet ist, welcher das Druckprodukt mit im wesentlich gleicher Geschwindigkeit bewegt resp. antreibt und entlang einer vorgesehenen Schnittkante zueinander in Anlage bringt, derart, dass der erste Messerteil, der der Fördereinheit einer Fördervorrichtung entspricht, und das zu ihm gehörige Druckprodukt, an einem zweiten ortsfesten Messerteil vorbeigeführt werden, um mit diesem in Schneideingriff gebracht zu werden. Hierzu wird eine Vorrichtung vorgeschlagen, die eine Fördervorrichtung mit mehreren auf einem geschlossenen Pfad umlaufenden Fördereinheiten zur Aufnahme der kontinuierlich anfallenden Druckprodukte aufweist, wobei die Fördereinheiten an der Rückseite der Druckprodukte ein Gegenmesser enthalten und Mittel besitzen, um die Druckprodukte in den Fördereinheiten wenigstens entlang der vorgesehenen Schnittkante mit dem Gegenmesser in Anlage zu bringen, bevor sie ein ortsfestes Schneidmesser bzw. zweites Messerteil durchlaufen, das mit dem Gegenmesser bzw. ersten Messerteil jeder Fördereinheit zusammenwirkt, und somit entlang der gebildeten Schnittkante beschnitten werden.
Eine solche Ausführung erfordert aufgrund der schlagartig einwirkenden Schnittkräfte einen hohen Konstruktionsaufwand, um eine die notwendige Schnittqualität vermittelnde Stabilität mit den Fördereinheiten erreichen zu können. Es erweist sich somit auf den Schneidvorgang als ungünstig, wenn die an Zugorganen aufgehängten und in Längsführungen mit seitlichem Spiel fortbewegten Fördereinheiten hohen Belastungen ausgesetzt werden.EP - A - 0 367 715 conveys a method for trimming the side edges of continuously conveyed printed products in a continuous process, with each printed product being assigned a trailing, first knife part which is effective in conveying and which moves or moves the printed product at substantially the same speed. drives and brings into contact with one another along a provided cutting edge, such that the first knife part, which corresponds to the conveying unit of a conveying device, and the associated printed product, are guided past a second stationary knife part in order to be brought into cutting engagement therewith. For this purpose, a device is proposed which has a conveyor device with a plurality of conveyor units rotating on a closed path for receiving the continuously occurring printed products has, wherein the conveyor units on the back of the printed products contain a counter knife and have means to bring the printed products in the conveyor units into contact with the counter knife at least along the intended cutting edge before they pass through a stationary cutting knife or second knife part which with the Counter knife or first knife part of each conveyor unit cooperates, and thus be trimmed along the cutting edge formed.
Due to the sudden cutting forces, such a design requires a high level of design effort in order to be able to achieve a stability with the conveyor units that conveys the necessary cutting quality. It thus turns out to be unfavorable for the cutting process if the conveyor units suspended on traction elements and moved in longitudinal guides with lateral play are exposed to high loads.
Aufgabe der Erfindung ist es somit, eine Einrichtung zum Beschneiden von Druckprodukten nach der eingangs genannten Art zu schaffen, bei welcher durch eine gegenüber den bekannten Konstruktionen unterschiedliche Bauweise die erwähnten Nachteile nicht eintreten bzw. bei der die geforderte Schnittqualität und die dafür erforderliche Eigenstabilität auf einfache Weise erzielt werden kann.The object of the invention is therefore to provide a device for trimming printed products according to the type mentioned, in which the disadvantages mentioned do not occur due to a different construction compared to the known constructions, or in which the required cut quality and the inherent stability required in a simple manner Way can be achieved.
Erfindungsgemäss wird diese Aufgabe dadurch gelöst, dass der aus wenigstens einem Messer gebildeten Schneidvorrichtung eine an der Rückseite der Druckprodukte, von der vorstehenden Kante zurückversetzte und beim Schneidvorgang dem Messer gegenüberliegend, wenigstens annähernd über die Schnittlänge in Anlage bringbare, gleichsinnig und im Takt der zugeführten Druckprodukte angetriebene, wenigstens eine Schulter aufweisende Stützvorrichtung zugeordnet ist.
Diese Ausgestaltung gestattet es, die durch den Schneidvorgang auftretenden Kräfte von der Fördervorrichtung fern zu halten und den Schneidvorgang in stabiler Umgebung durchzuführen.According to the invention, this object is achieved in that the cutting device formed from at least one knife is set back on the back of the printed products, from the protruding edge and opposite the knife during the cutting process, can be brought into contact at least approximately over the cutting length, in the same direction and in time with the supplied printed products driven, at least one shoulder supporting device is assigned.
This configuration allows the cutting process keep occurring forces away from the conveyor and perform the cutting process in a stable environment.
Vorteilhaft ist die Stützvorrichtung um eine parallel zur Schnittkante angeordnete Achse rotierbar ausgebildet und weist am Umfang mehrere, im Abstand der Fördereinheiten der Fördervorrichtung verteilte Schultern auf, sodass die Schnittkräfte nicht auf die Fördervorrichtung übertragen werden.The support device is advantageously designed to be rotatable about an axis arranged parallel to the cutting edge and has several shoulders distributed around the circumference at a distance from the conveying units of the conveying device, so that the cutting forces are not transmitted to the conveying device.
In dem anschliesenden Beschreibungsteil wird die erfindungsgemässe Einrichtung anhand eines in der Zeichnung dargestellten Ausführungsbeispiels erörtert. Es zeigen:
- Fig. 1
- eine schematische Darstellung der konstruktiven Ausgestaltung und Anordnungsweise der erfindungsgemässen Einrichtung,
- Fig. 2
- einen Querschnitt nach der Linie II - II in Fig. 3,
- Fig. 3
- auszugsweise einen vergrösserten Grundriss der Darstellung in Fig. 1,
- Fig. 4
- einen auszugsweisen Längsschnitt nach der Linie IV - IV in Fig. 3,
- Fig. 5
- eine schematische Darstellung der konstruktiven Mittel zur Betätigung des in den Fig. 4 und 6 veranschaulichten Gegenhalteorgans und
- Fig. 6
- einen auszugsweisen Längsschnitt gemäss Linie IV - IV in Fig. 3 mit einer alternativen Ausführungsform.
- Fig. 1
- 2 shows a schematic representation of the structural design and arrangement of the device according to the invention,
- Fig. 2
- 3 shows a cross section along the line II-II in FIG. 3,
- Fig. 3
- extracts an enlarged plan view of the representation in Fig. 1,
- Fig. 4
- an excerpt longitudinal section along the line IV - IV in Fig. 3,
- Fig. 5
- is a schematic representation of the constructive means for actuating the counter-holding element illustrated in FIGS. 4 and 6
- Fig. 6
- an excerpt longitudinal section along line IV - IV in Fig. 3 with an alternative embodiment.
Fig. 1 zeigt eine Einrichtung 1 zum Beschneiden mehrerer Kanten von in regelmässigen Abständen beispielsweise von einer Rotationsdruckmaschine oder einem Sammelhefter zugeführten Druckprodukten 2. Letztere werden von oben beschickbaren taschenartigen Fördereinheiten 3 einer Fördervorrichtung 4 zum Transport aufgegeben. Die Fördereinheiten 3 sind mit endlos um wenigstens zwei beabstandete Rollen 5 umlaufend angetriebenen Zugorganen 6 und hinsichtlich ihres Aufnahmevermögens möglicherweise einstellbar ausgebildet bzw. an die Grösse des Ladegutes resp. der Druckprodukte 2, die beim Schneidvorgang in den Fördereinheiten eingespannt sind, angepasst. Der Verlauf der Trums der Fördervorrichtung 4 ist schräg nach oben vorgesehen, sodass die in den Fördereinheiten 3 vorkommenden Druckprodukte 2 flach gestreckt an der Rückwand der Fördereinheiten 3 anliegen können. Nicht ersichtliche Halteelemente sorgen dafür, dass die Druckprodukte 2, nachdem sie die Lage zum Beschneiden der Kanten beispielsweise mit Hilfe von Führungsmitteln eingenommen haben, an der Rückwand der Fördereinheiten 3 festgehalten werden.
Bezüglich der Positionierung der Druckprodukte 2, sind unterhalb der Fördereinheiten 3 zwei voneinander in seitlichem Abstand angeordnete, den Druckprodukten 2 eine Abstützfläche bietende und vorzugsweise mit gleicher Geschwindigkeit mitlaufende endlos angetriebene Bänder 6 vorgesehen, die auch in Fig. 2 erkennbar sind. Die seitliche Führung der Druckprodukte 2 erfolgt auf ähnliche Weise durch seitlich der Fördervorrichtung 4 angeordnete, vorzugsweise verstellbare Führungsbänder 7 (siehe auch Fig. 3). Es könnten zu diesem Zweck auch statische Abweisorgane oder andere bekannte Mittel verwendet werden.
Selbstverständlich ist der schräg nach oben gerichtete Verlauf der Fördervorrichtung 4, der ein flaches Aufliegen der zugeführten Druckprodukte 2 in den Fördereinheiten 3 begünstigt, nicht zwingend, sie könnte auch waagrecht angeordnet sein.1 shows a
With regard to the positioning of the printed
Of course, the obliquely upward course of the conveying device 4, which favors a flat lying of the supplied printed
Die von den Kanten der Druckprodukte 2 zurückversetzten strichpunktierten Linien in den Fig. 1 bis 3 weisen auf die Schneidkanten der Druckprodukte 2 hin, wobei in Fig. 1 die Schneidkante für die offene Seitenkante der Druckprodukte 2 angegeben, in Fig. 2 Kopf-, Fuss- und Seitenkante und in Fig. 3 wiederum Kopf- und Fusskante vermerkt sind.
In Fig. 4 ist eine zur Einrichtung 1 gehörende Schneidvorrichtung 8 veranschaulicht, wie sie beispielsweise in den Fig. 1 und 3 anordnungsmässig dargestellt ist. Bezugszeichen 9 deutet jeweils auf die Schnittkanten für Kopf- und/oder Fussseite oder die zu beschneidende offene Seitenkante eines Druckproduktes 2 hin. An der Schnittkante 9 liegt die der Förderrichtung der Druckprodukte entgegengerichtete Schneide 10 eines stationären, über die maximale Breite der Seiten eines Druckproduktes 2 hinausragenden Messers 11, das an einem Support 12 abnehmbar befestigt ist.Set back from the edges of the printed
FIG. 4 illustrates a
Die Schneide kann von der Senkrechten zur Förderrichtung abweichend in einem schrägen Winkel sich über die Schnittlänge erstreckend ausgebildet sein, sodass der Schnitt über eine kurze Zeit durchgeführt wird. Der Support 12 ist um eine senkrecht zur Förderrichtung und parallel zur Schnittkante verlaufende Achse 13 drehbar angeordnet, deren Abstand senkrecht zu der Fördervorrichtung veränderbar ausgebildet ist. Auch parallel zur Förderrichtung kann die Schneide 10 des Messers 11 verstellt werden.
Der Fördervorrichtung 4 bzw. jeder Fördereinheit 3 ist eine im Schneidbereich um die Achse 13 gleichsinnig rotierend angetriebene Stützvorrichtung 14 zugeordnet, die im Takt der der Fördervorrichtung 4 zugeführten resp. von der Fördervorrichtung 4 transportierten Druckprodukte 2 vor und während dem Schneidvorgang an der Rückseite der Druckprodukte 2, diese unterhalb der Schneidkante 9 stützend anliegt. Die trommelförmig ausgebildete Stützvorrichtung 14 weist am Umfang verteilt, mehrere parallel zu den Mantellinien verlaufende, einen rotierenden Käfig bildende Leisten 15 auf, die an der in Drehrichtung vorderen Kante als an den Rückseiten der Druckprodukte 2 von der Schneidkante 9 zurückversetzt anliegende Schultern 16 ausgebildet sind. Die Abstände der Schultern 16 am Umfang der Stützvorrichtung 14 entsprechen den Abständen der Fördereinheiten 3 an der Fördervorrichtung 4, können aber auch kürzer oder länger gewählt werden.
Um die Schnittleistung verbessern zu können, kann die Schulter 16 als Gegenmesser ausgebildet sein, wozu das der Schneide 10 des Messers 11 zugewendete Ende als Schneidkante wirkt. Es ist vorteilhaft, wenn die Schultern 16 austauschbar an den Leisten 15, wie das Messer am Support 12 befestigt sind. Die die Schultern 16 besitzenden Leisten 15 sind als Abschnitte einer um die Achse 13 umlaufenden Trommel ausgebildet und ergeben einen käfigartigen Rotor.
Der Support 12 kann auch für mehrere zu befestigende Messer 11 ausgebildet sein, sowohl bei stationär eingesetztem Messer, sodass ein schneller Messerwechsel durchführbar wird; als auch bei rotierend angetriebener Schneidvorrichtung 8, bei welcher ein oder mehrere Messer 11 im Schneidbereich der Fördervorrichtung 4 entgegenwirken bzw. im Bereich ihrer grössten Annäherung an die Fördervorrichtung 4 mit den Schultern 16 der Stützvorrichtung zusammenwirken. Zu diesem Zweck ist der Support 12 an einer Welle 17 gelagert.
Letztere und die Schneidvorrichtung 8 resp. der Support 12 können wie dargestellt und bei Querschneidern bekannt, zur Späneabfuhr ausgebildet sein. Hierzu ist die Welle 17 hohl ausgebildet, der Hohlraum an eine Druck- oder Vakuumquelle angeschlossen und der Support 12 mit einem den Hohlraum der Welle 17 mit dem Schneidbereich verbindenden sektorähnlichen Abzugsraum 18 ausgestattet, der durch die ausserhalb des/der Messer 11 umlaufenden Leisten 15 begrenzt wird.
Zur Erzielung einer hohen Schneidstabilität über dem von der Stützvorrichtung 14 gegen Knicken gehaltenen Bereich eines Druckbogens 2 kann mit Hilfe einer Gegenleiste 24 ein Gegenhalteorgan gebildet werden, das sich von der Schulter 16 an dem Druckprodukt 2 gegenüberliegend gegen dieses stemmt.The cutting edge can deviate from the perpendicular to the conveying direction at an oblique angle and extend over the cutting length, so that the cutting is carried out over a short time. The
The conveying device 4 or each
In order to be able to improve the cutting performance, the
The
The latter and the
In order to achieve a high cutting stability over the area of an area held by the
Fig. 5 vermittelt die konstruktiven Mittel und die Funktionsweise der Gegenleiste 24 als Gegenhalteorgang. Letzteres ist beidseits der Stützvorrichtung 14 an einer Aufhängung 19, bestehend aus jeweils einer koaxial zur Achse 13 drehbar gelagerten Scheibe 20, an deren Umfang die Gegenleiste 24 befestigt ist. Die Gegenleiste 24 wird beispielsweise mit der Kraft einer Feder oder pneumatisch, d.h. aufgrund der mit unterschiedlichen Dickenmassen zu bearbeitenden Druckprodukte nachgiebig gegen das Druckprodukt 2 resp. gegen die Schulter 16 gepresst. Dementsprechend ist in Fig. 5 eine Zugfeder 21 vermerkt, die jeweils an der Scheibe 20 angreift und dadurch mitdrehend die Gegenleiste 24 an das strichpunktiert gezeichnete Druckprodukt 2 anpresst.
Diese Anpresskraft kann durch eine auf die Scheiben 20 einwirkende, gesteuerte Hebelvorrichtung 22 aufgehoben werden, die von einer gegenüber letzterer stationären Steuerbahn 23 beeinflusst wird. Die Hebelvorrichtung 22 ist an einer mit der Stützvorrichtung 14 verbundenen Schwenkachse 25 gelagert und besitzt zwei Hebelarme 26, 27, von denen der eine 26 mit dem schwenkbaren Ende mit den Scheiben 20 formschlüssig gekuppelt ist, während der andere Hebelarm 27 am freien Ende eine an der Steuerbahn 23 verlaufende Steuerrolle 28 aufweist.5 conveys the constructive means and the mode of operation of the
This contact pressure can be eliminated by a controlled
In Fig. 6 ist eine alternative Ausführung einer Schneidvorrichtung 8 im Zusammenwirken mit der Fördervorrichtung 4 veranschaulicht. Die Schneidvorrichtung 8 besteht aus einem mit Messern 11 am Umfang bestückten Support 12, der an der Welle 17 um die Achse 13 angetrieben ist, so dass sie im Schneidbereich an der Fördervorrichtung 4 in gleicher Richtung wie diese, jedoch mit höherer Geschwindigkeit sich bewegt. Den gleichen Drehsinn wie die Messer, jedoch die Geschwindigkeit der Fördervorrichtung 4, weisen die koaxial zu der Achse 13 umlaufenden Leisten 15 der trommelförmig aufgebauten und die rotierende Schneidvorrichtung 8 umgebenden Stützvorrichtung 14 auf, deren nachlaufende Schulter 16 ein Druckprodukt 2 jeweils am Aushang stützt.
Um das Druckprodukt 2 beim Schneiden kompakt zusammengepresst zu halten, ist wiederum eine gegen die Schulter 16 gerichtete Gegenleiste 24 eines Gegenhalteorgans vorgesehen, die jedoch bei dieser Ausführung nach Fig. 6 vor dem Schneiden durch Beschleunigung ihrer Umlaufgeschwindigkeit nachgiebig gegen das Druckprodukt 2 gepresst wird.
24' vermittelt die Lage der Gegenleiste nach dem Schneiden in der Ausgangsposition.An alternative embodiment of a
In order to keep the printed
24 'conveys the position of the counter bar after cutting in the starting position.
Claims (12)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH00768/94A CH687371A5 (en) | 1994-03-16 | 1994-03-16 | Device for trimming printed products. |
CH768/94 | 1994-03-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0673729A1 true EP0673729A1 (en) | 1995-09-27 |
EP0673729B1 EP0673729B1 (en) | 1998-07-22 |
Family
ID=4194726
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95810155A Expired - Lifetime EP0673729B1 (en) | 1994-03-16 | 1995-03-09 | Device for cutting printed products |
Country Status (4)
Country | Link |
---|---|
US (1) | US5832799A (en) |
EP (1) | EP0673729B1 (en) |
CH (1) | CH687371A5 (en) |
DE (1) | DE59502858D1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5809856A (en) * | 1995-10-04 | 1998-09-22 | Ferag Ag | Method for cutting continuously conveyed flat products made of paper or of similar materials |
US5832799A (en) * | 1994-03-16 | 1998-11-10 | Grapha-Holding Ag | Device for trimming edges from printed documents |
EP1683611A1 (en) | 2005-01-21 | 2006-07-26 | Ferag AG | Method and device for trimming flexible flat products |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6615699B2 (en) * | 1999-09-17 | 2003-09-09 | Ferag Ag | Method and device for cutting continuously conveyed, flat objects |
US7926396B2 (en) * | 2001-10-26 | 2011-04-19 | Goss International Americas, Inc. | Matched velocity transfer apparatus for a sheet material article trimmer |
US20070020578A1 (en) * | 2005-07-19 | 2007-01-25 | Scott Robert R | Dental curing light having a short wavelength LED and a fluorescing lens for converting wavelength light to curing wavelengths and related method |
PT1520664E (en) * | 2003-10-02 | 2007-08-13 | Mueller Martini Holding Ag | Device for trimming printed products |
EP1683612B1 (en) * | 2005-01-21 | 2016-08-03 | Ferag AG | Method and device for transporting flexible flat products, and for cutting them at the same time |
DE102017120026A1 (en) * | 2017-07-12 | 2019-01-17 | Bw Papersystems Hamburg Gmbh | Cross cutter and method for material- and / or thickness-dependent adaptation of the relative cutting position of a rotating knife to the cutting position of a stationary knife in a cross cutter |
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DE308330C (en) * | 1900-01-01 | |||
DE1253034B (en) * | 1964-04-22 | 1967-10-26 | Sig Schweiz Industrieges | Shearing device for cutting a web of material |
DE1778882A1 (en) * | 1968-06-14 | 1971-09-02 | Karl Schnell | Crushing machine with a cylindrical screen body |
FR2306800A1 (en) * | 1975-04-08 | 1976-11-05 | Ferag Ag | DEVICE FOR CUTTING SHEET PRODUCTS CONTINUOUSLY ARRIVING |
CH668216A5 (en) * | 1985-11-14 | 1988-12-15 | Ferag Ag | Printed item-trimming machine - has compartments and knives on parallel endless chains travelling at same speed |
EP0367715A1 (en) * | 1988-10-31 | 1990-05-09 | Ferag AG | Method and device for trimming printed produce |
EP0418529A2 (en) * | 1989-09-19 | 1991-03-27 | MAN Roland Druckmaschinen AG | Apparatus for trilateral trimming of signatures |
EP0602593A1 (en) * | 1992-12-18 | 1994-06-22 | Ferag AG | Device for trimming a flat product, particularly a multi-layer printed product |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH584153A5 (en) * | 1973-10-10 | 1977-01-31 | Ferag Ag | |
CH618398A5 (en) * | 1977-06-06 | 1980-07-31 | Ferag Ag | |
CH687371A5 (en) * | 1994-03-16 | 1996-11-29 | Grapha Holding Ag | Device for trimming printed products. |
-
1994
- 1994-03-16 CH CH00768/94A patent/CH687371A5/en not_active IP Right Cessation
-
1995
- 1995-03-09 DE DE59502858T patent/DE59502858D1/en not_active Expired - Lifetime
- 1995-03-09 EP EP95810155A patent/EP0673729B1/en not_active Expired - Lifetime
-
1997
- 1997-09-08 US US08/925,314 patent/US5832799A/en not_active Expired - Lifetime
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE308330C (en) * | 1900-01-01 | |||
DE1253034B (en) * | 1964-04-22 | 1967-10-26 | Sig Schweiz Industrieges | Shearing device for cutting a web of material |
DE1778882A1 (en) * | 1968-06-14 | 1971-09-02 | Karl Schnell | Crushing machine with a cylindrical screen body |
FR2306800A1 (en) * | 1975-04-08 | 1976-11-05 | Ferag Ag | DEVICE FOR CUTTING SHEET PRODUCTS CONTINUOUSLY ARRIVING |
CH668216A5 (en) * | 1985-11-14 | 1988-12-15 | Ferag Ag | Printed item-trimming machine - has compartments and knives on parallel endless chains travelling at same speed |
EP0367715A1 (en) * | 1988-10-31 | 1990-05-09 | Ferag AG | Method and device for trimming printed produce |
EP0418529A2 (en) * | 1989-09-19 | 1991-03-27 | MAN Roland Druckmaschinen AG | Apparatus for trilateral trimming of signatures |
EP0602593A1 (en) * | 1992-12-18 | 1994-06-22 | Ferag AG | Device for trimming a flat product, particularly a multi-layer printed product |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5832799A (en) * | 1994-03-16 | 1998-11-10 | Grapha-Holding Ag | Device for trimming edges from printed documents |
US5809856A (en) * | 1995-10-04 | 1998-09-22 | Ferag Ag | Method for cutting continuously conveyed flat products made of paper or of similar materials |
CH690323A5 (en) * | 1995-10-04 | 2000-07-31 | Ferag Ag | Method and apparatus for cutting continuously demanded, in particular of paper products flochigen. |
EP1683611A1 (en) | 2005-01-21 | 2006-07-26 | Ferag AG | Method and device for trimming flexible flat products |
CH704642B1 (en) * | 2005-01-21 | 2012-09-28 | Ferag Ag | Apparatus for trimming of flexible, flat products. |
Also Published As
Publication number | Publication date |
---|---|
DE59502858D1 (en) | 1998-08-27 |
EP0673729B1 (en) | 1998-07-22 |
CH687371A5 (en) | 1996-11-29 |
US5832799A (en) | 1998-11-10 |
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