EP1842633B1 - Cutting apparatus having a blowing device for waste removal - Google Patents

Cutting apparatus having a blowing device for waste removal Download PDF

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Publication number
EP1842633B1
EP1842633B1 EP20060405142 EP06405142A EP1842633B1 EP 1842633 B1 EP1842633 B1 EP 1842633B1 EP 20060405142 EP20060405142 EP 20060405142 EP 06405142 A EP06405142 A EP 06405142A EP 1842633 B1 EP1842633 B1 EP 1842633B1
Authority
EP
European Patent Office
Prior art keywords
cutting
knife
cutting knife
guide element
printed product
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.)
Not-in-force
Application number
EP20060405142
Other languages
German (de)
French (fr)
Other versions
EP1842633A1 (en
Inventor
Hanspeter Meyer
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.)
Mueller Martini Holding AG
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Mueller Martini 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 Mueller Martini Holding AG filed Critical Mueller Martini Holding AG
Priority to DE200650008549 priority Critical patent/DE502006008549D1/en
Priority to EP20060405142 priority patent/EP1842633B1/en
Priority to AT06405142T priority patent/ATE492379T1/en
Priority to JP2007098938A priority patent/JP2007276107A/en
Priority to US11/730,847 priority patent/US7765907B2/en
Publication of EP1842633A1 publication Critical patent/EP1842633A1/en
Application granted granted Critical
Publication of EP1842633B1 publication Critical patent/EP1842633B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/18—Means for removing cut-out material or waste
    • B26D7/1845—Means for removing cut-out material or waste by non mechanical means
    • B26D7/1854—Means for removing cut-out material or waste by non mechanical means by air under pressure
    • 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
    • Y10T83/0448—With subsequent handling [i.e., of product]
    • Y10T83/0453—By fluid application
    • 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
    • Y10T83/202—With product handling means
    • Y10T83/2066—By fluid current
    • 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
    • Y10T83/202—With product handling means
    • Y10T83/2066—By fluid current
    • Y10T83/2068—Plural blasts directed against plural product 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
    • Y10T83/202—With product handling means
    • Y10T83/2092—Means to move, guide, or permit free fall or flight of product
    • 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
    • Y10T83/222—With receptacle or support for cut product
    • 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
    • Y10T83/748—With work immobilizer
    • Y10T83/7487—Means to clamp work

Definitions

  • the invention relates to a cutting device for the stepping of a side edge of at least one printed product, such as a book block, book, brochure or magazine, consisting of a cutting table, which the printed product is fed into a cutting position, a press stamp holding the printed product on the cutting table during the cutting process, one from a reversal position against the lying on the cutting table printed product driven cutting blade and a counter blade resp. a cutting strip bordering the cutting stroke of the cutting blade on the cutting table and a blowing air at the back of the cutting blade on the chip removal device separated from the printed product, wherein a chip-collecting space acted on by blowing nozzles is arranged on the rear side of the cutting blade and the cutting device is used.
  • a cutting device for the stepping of a side edge of at least one printed product, such as a book block, book, brochure or magazine, consisting of a cutting table, which the printed product is fed into a cutting position, a press stamp holding the printed product on the cutting table during the cutting process, one from
  • Bound book blanks, book blocks, brochures and similar printed materials become three pages after the binding process trimmed to finished size.
  • the cutting machine forms a section of a production line at which the printed products are collected, bound, cut and stacked in succession.
  • Cutting machines of the type mentioned are also known to the person skilled in the art as trimmers or three-knife trimmers. Depending on the cutting principle is also distinguished between machines that work with knife and counter knife on the principle of scissors and those that work with a cutting blade against a softer cutting edge.
  • the printed products must first be brought into the cutting position by means of a conveyor system, aligned there exactly and pressed in this position before the cutting process can be carried out.
  • the pressure is released again and the printed product is removed from the cutting area, so that space can be made for the next printed product. Further funds are required for the removal of the chips produced during the cutting process. For example, if chips are left over, they can affect the alignment process of the next printed product to be trimmed, resulting in reduced cutting accuracy or even unusable printed matter. It is also conceivable that chips are carried along by the printed products and lead to disruptions in a subsequent processing process. Particularly critical is the situation in the removal of chips on cutting devices in which the cutting blades are transverse to the conveying direction of the printed products, because the available space must be used both for the promotion of the printed matter and the removal of the chips.
  • blower nozzles which are attached to the movable cutting blade or parts near the knife and thus participate in the knife movement.
  • the blast air is directed along the back of the cutting blade against the cutting edge of the blade, with the intention of blowing the chips away from the cutting blade.
  • additional blower which are also attached to the cutting blade and are directed against a collecting funnel of a chip suction, the chips should be accelerated and transported into the Auftangtrichter.
  • a disadvantage of this solution is that the directed in the direction of the collecting funnel blowing air nozzles are far away from the resulting chips, so that an insufficient effect. Due to the formation of air vortices, the removal speed in the direction of the collecting funnel is too small and collisions with the next printed product to be circumcised are not excluded.
  • the aforementioned embodiments also have the disadvantage that the measures provided for the chip removal organs, such as blowing air nozzles and baffles are attached directly to the cutting blade or knife carrier and always occupy the same relative position relative to the cutting blade. This means that these organs are themselves move analogous to the cutting blade on a curve that is determined by the swinging section of the cutting blade. As a result, the freedom of design for these institutions is severely limited because with the required for the promotion of the printed products on the cutting table facilities no collisions may occur.
  • the invention has for its object to dissipate the cutting edges resulting from the cutting of printed products in particular those of the front section continuously and without jamming from the cutting area.
  • a cutting device 23 in particular a three-knife trimmer for trimming a side edge of a printed product 1, such as a book, a brochure, magazine or the like., Preferably shown on the front edge.
  • a feed device 21 and a cutting table 22 are arranged on a stationary, only indicated machine frame 20, a feed device 21 and a cutting table 22 are arranged.
  • the fixed to a knife carrier 2 cutting blade 3 moves at least during the cutting process in a cutting plane in the vertical and horizontal directions.
  • the knife carrier 2 is fixed by known means, such as screws, to a knife carrier holder 5, which is guided at its two ends in a guide device 6 of the machine frame 20.
  • the drive of the knife carrier holder 5 is effected by a drive device, not shown in the drawing.
  • Guide means not shown also ensure that cutting blade 3, knife carrier 2 and blade holder 5 move in the direction of arrow 4.
  • the printed product 1 is pressed by means of a press ram 7 on the cutting table 22 with the cutting bar 30. This is necessary so that the printed products 1 can not move due to the cutting forces occurring during cutting.
  • the feed device 21 upstream of the cutting device 23 conveys the printed products 1 onto the cutting table 22.
  • the feed device 21 consists of an upstream table 24 on which the printed products 1 during conveyance by a belt conveyor 25 and a slider 26, which promotes the printed products 1 in the cutting position on the cutting table 22.
  • the end of the table 24 facing the cutting table 22 must be able to be set back so that a sufficiently large discharge cross section can be created.
  • this is achieved so that the end of the table is designed as a flap 9 which is pivotally mounted about an axis 27.
  • the flap 9 forms the end of the table 24, however, it is pivoted during cutting down and keeps the chip removal device 31 for the chips 8 free.
  • the drive of the flap 9 is cyclically controlled by known means, such as cams, electric, hydraulic or pneumatic drives.
  • the Fig. 3 the emergence of the conveying effect and the displacement of the cut chips 8 are shown.
  • the pages of a printed product 1 are usually not mutually fixed with folds or other connections, so that chips 8 continuously accumulate and can be removed during cutting.
  • the chips 8 are washed away from the cutting blade 3 and transported out of the cutting area.
  • a special nozzle arrangement is provided, wherein the nozzles 11 to the back 32 of the cutting blade 3 in approximately parallel and the delivery nozzles 12 are arranged at an acute angle ⁇ to the surface of the guide walls 35 which together form a Spaner chargedsraum 33.
  • the further transport of the chips 8 can be carried out by the chip removal device 31, for example a suction device.
  • the distribution of the air to the nozzles 11,12 takes place from Blas Kunststoffschn 38,39, via air connections 29 are connected to a blown air source (not shown).
  • the nozzle arrangement serves for a rinsing effect in which the cut chips 8 are displaced out of the cutting region into a conveying flow of the blowing air which is parallel to the cutting plane and carries the chips 8 out of the cutting region. It is advantageous to maintain the air supply only as long as required for the removal of chips 8. It is extremely important that the chips 8 are led away immediately after their formation and continuously, because otherwise, especially when cutting wide chips 8 with thick printed products 1 could form a backwater.
  • a guide element 10 has a guide element region 37 which faces the chips 8 and extends from above the cutting edge 34 in a continuously curved shape toward the end 36, which preferably lies below the cutting edge 34, and forms a chip detection space 33 Guide element 10 to make two-piece.
  • the vault part 13 which is closer to the cutting blade 3 is slidably connected to the former in the vertical direction by means of a carriage 15, while the vault part 14 remote from the cutting blade 3 can be raised by means of a slider 18 on a rail 19, vertically upwards to the arched part 13 can. This function can be used to avoid damage due to collisions between an incompletely transported on the cutting table printed product 1 and the second arched portion 14.
  • the guide element 10 does not have the same shape over the entire length of the cutting blade 3, but is divided into a plurality of segments 28.
  • the Division into segments has the additional advantage that only as many segments 28 must be installed, as required by the cut length.
  • the guide element 10 is connected via the carriage 15 with the knife carrier 2 or knife carrier holder 5 and guided by control cam 16 and guide roller 17 such that the lateral movement of the cutting blade 3 is compensated.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nonmetal Cutting Devices (AREA)
  • Details Of Cutting Devices (AREA)
  • Scissors And Nippers (AREA)
  • Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Elimination Of Static Electricity (AREA)

Abstract

The trimmer has a trimming table (22) arranged to receive a printed product (1) e.g. book, in a position ready for trimming. A trimming knife (3) is configured to cut the lateral edge of the product during a cutting stroke for creating cuttings separated from the product. A removal device is provided for removing the separated cuttings, and includes a collection region arranged behind the knife to receive the separated cuttings during the cutting stroke of the knife. A set of air nozzles is located above the region and adapted to blow compressed air into the collection region. An independent claim is also included for a method for operating a three-knife trimmer for trimming a print product.

Description

Die Erfindung betrifft eine Schneideinrichtung für den Beschritt einer Seitenkante wenigstens eines Druckerzeugnisses, wie beispielsweise Buchblock, Buch, Broschur oder Zeitschrift, bestehend aus einem Schneidtisch, dem das Druckerzeugnis in eine Schneidposition zugeführt wird, einem das Druckerzeugnis während dem Schneidvorgang auf den Schneidtisch festhaltenden Pressstempel, einem aus einer Umkehrstellung gegen das auf dem Schneidtisch liegende Druckerzeugnis angetriebenen Schneidmesser und einem Gegenmesser resp. einer den Schneidhub des Schneidmessers auf dem Schneidtisch begrenzenden Schneidleiste sowie einer Blasluft an der Rückseite des Schneidmessers auf das vom Druckerzeugnis abgetrennte Schneidgut zuführenden Spanabführvorrichtung, wobei an der Rückseite des Schneidmessers ein von über Düsen eingeführte Blasluft beaufschlagter Spanerfassungsraum angeordnet ist, sowie die Anwendung der Schneideinrichtung.The invention relates to a cutting device for the stepping of a side edge of at least one printed product, such as a book block, book, brochure or magazine, consisting of a cutting table, which the printed product is fed into a cutting position, a press stamp holding the printed product on the cutting table during the cutting process, one from a reversal position against the lying on the cutting table printed product driven cutting blade and a counter blade resp. a cutting strip bordering the cutting stroke of the cutting blade on the cutting table and a blowing air at the back of the cutting blade on the chip removal device separated from the printed product, wherein a chip-collecting space acted on by blowing nozzles is arranged on the rear side of the cutting blade and the cutting device is used.

Gebundene Buchrohlinge, Buchblocks, Broschüren und ähnliche Druckerzeugnisse werden nach dem Bindeprozess an drei Seiten auf Fertigmass beschnitten. Die Schneidmaschine bildet dabei in der Regel einen Abschnitt einer Fertigungslinie, an der die Druckerzeugnisse in Folge gesammelt, gebunden, beschnitten und gestapelt werden. Schneidmaschinen der genannten Art sind dem Fachmann auch als Trimmer oder Dreischneider bekannt. Je nach Schneidprinzip wird zudem zwischen Maschinen, die mit Messer- und Gegenmesser nach dem Scherenprinzip und solchen die mit einem Schneidmesser gegen eine weichere Schneidleiste arbeiten, unterschieden. Unabhängig vom Schneidprinzip, müssen die Druckerzeugnisse zuerst mittels eines Fördersystems in die Schneidposition gebracht, dort exakt ausgerichtet und in dieser Lage gepresst werden, bevor der Schneidvorgang ausgeführt werden kann. Nach dem Schneidvorgang wird die Pressung wieder gelöst und das Druckerzeugnis aus dem Schneidbereich entfernt, damit Platz für das nächste Druckerzeugnis geschafft werden kann. Weitere Mittel sind erforderlich für die Entfernung der beim Schneidvorgang entstehenden Späne. Bleiben Späne beispielsweise liegen, können sie den Ausrichtvorgang des nächsten zu beschneidenden Druckerzeugnisses beeinträchtigen, sodass eine verminderte Schneidgenauigkeit oder sogar unbrauchbare Druckerzeugnisse entstehen können. Es ist ebenfalls denkbar, dass Späne durch die Druckerzeugnisse mitgeführt werden und in einem anschliessenden Verarbeitungsprozess zu Störungen führen. Besonders kritisch ist die Situation bei der Entfernung von Spänen an Schneideinrichtungen, bei denen die Schneidmesser quer zur Förderrichtung der Druckerzeugnisse stehen, weil der verfügbare Raum sowohl für die Förderung der Druckerzeugnisse als auch die Beseitigung der Späne benutzt werden muss. Die Anforderungen an die Beseitigung der Späne werden zudem mit höherer Taktzahl respektive kürzerer Zykluszeit, bei grösserer Schneiddicke und breiteren Abschnitten weiter erhöht. Ohne Hilfsmittel für die Spänebeseitigung lassen sich heutige Schneidmaschinen nicht zuverlässig betreiben. Eine verbreitete Lösung ist der Einsatz von Blasluftdüsen, die am beweglichen Schneidmesser oder messernahen Teilen befestigt sind und somit die Messerbewegung mitmachen. Die Blasluft wird dabei entlang der Rückseite des Schneidmessers gegen die Schneidkante der Schneide gerichtet, in der Absicht die Späne vom Schneidmesser weg zu blasen. Mittels zusätzlichen Blasluftdüse, die ebenfalls am Schneidmesser befestigt sind und gegen einen Auffangtrichter einer Späneabsaugung gerichtet sind, sollen die Späne beschleunigt und in den Auftangtrichter befördert werden. Nachteilig an dieser Lösung ist, dass die in Richtung des Auffangtrichters gerichteten Blasluftdüsen weit von den entstehenden Spänen entfernt sind, sodass eine unzureichende Wirkung entsteht. Durch die Bildung von Luftwirbeln ist die Wegfördergeschwindigkeit in Richtung des Auffangtrichters zu klein und Kollisionen mit dem zu beschneidenden nächsten Druckerzeugnis sind nicht ausgeschlossen.Bound book blanks, book blocks, brochures and similar printed materials become three pages after the binding process trimmed to finished size. As a rule, the cutting machine forms a section of a production line at which the printed products are collected, bound, cut and stacked in succession. Cutting machines of the type mentioned are also known to the person skilled in the art as trimmers or three-knife trimmers. Depending on the cutting principle is also distinguished between machines that work with knife and counter knife on the principle of scissors and those that work with a cutting blade against a softer cutting edge. Regardless of the cutting principle, the printed products must first be brought into the cutting position by means of a conveyor system, aligned there exactly and pressed in this position before the cutting process can be carried out. After the cutting process, the pressure is released again and the printed product is removed from the cutting area, so that space can be made for the next printed product. Further funds are required for the removal of the chips produced during the cutting process. For example, if chips are left over, they can affect the alignment process of the next printed product to be trimmed, resulting in reduced cutting accuracy or even unusable printed matter. It is also conceivable that chips are carried along by the printed products and lead to disruptions in a subsequent processing process. Particularly critical is the situation in the removal of chips on cutting devices in which the cutting blades are transverse to the conveying direction of the printed products, because the available space must be used both for the promotion of the printed matter and the removal of the chips. The requirements for the removal of the chips are also with higher cycle times or shorter cycle time, with greater cutting thickness and wider sections further increased. Without tools for chip removal, today's cutting machines can not operate reliably. A common solution is the use of blower nozzles, which are attached to the movable cutting blade or parts near the knife and thus participate in the knife movement. The blast air is directed along the back of the cutting blade against the cutting edge of the blade, with the intention of blowing the chips away from the cutting blade. By means of additional blower, which are also attached to the cutting blade and are directed against a collecting funnel of a chip suction, the chips should be accelerated and transported into the Auftangtrichter. A disadvantage of this solution is that the directed in the direction of the collecting funnel blowing air nozzles are far away from the resulting chips, so that an insufficient effect. Due to the formation of air vortices, the removal speed in the direction of the collecting funnel is too small and collisions with the next printed product to be circumcised are not excluded.

Eine weitere, in der DE 37 13 897 A1 offenbarte Lösung sieht vor, am Schneidmesser resp. Messerträger eine Leiteinrichtung für die Späne vorzusehen, welcher eine nach unten gerichtete Blasluftdüse zugeordnet ist. Diese Lösung mag bei schmalen Abschnitten und grosser Zykluszeit genügen. Bedingt durch die gegen die Spanfläche des Schneidmessers gerichtete Blasluft werden die Späne im gegen unten offenen Spanraum verwirbelt und mit verzögerter Wirkung nach unten weggefördert.Another, in the DE 37 13 897 A1 revealed solution provides, on the cutting blade resp. Knife carrier to provide a guide for the chips, which is associated with a downwardly directed Blasluftdüse. This solution may be sufficient for narrow sections and a long cycle time. Due to the directed against the rake face of the cutting blade blowing air, the chips are swirled in the downwardly open chip space and weggefördert with delayed action down.

Die erwähnten Ausführungen haben zudem den Nachteil, dass die für die Späneabfuhr vorgesehenen Organe, wie Blasluftdüsen und Leiteinrichtungen direkt am Schneidmesser- oder Messerträger befestigt sind und gegenüber dem Schneidmesser immer dieselbe relative Lage einnehmen. Dies bedeutet, dass diese Organe sich analog zum Schneidmesser auf einer Kurve bewegen, die durch den Schwingschnitt des Schneidmessers bestimmt ist. Dadurch wird auch die Gestaltungsfreiheit für diese Organe stark eingeschränkt, weil mit den für die Förderung der Druckerzeugnisse auf den Schneidtisch erforderlichen Einrichtungen keine Kollisionen auftreten dürfen.The aforementioned embodiments also have the disadvantage that the measures provided for the chip removal organs, such as blowing air nozzles and baffles are attached directly to the cutting blade or knife carrier and always occupy the same relative position relative to the cutting blade. This means that these organs are themselves move analogous to the cutting blade on a curve that is determined by the swinging section of the cutting blade. As a result, the freedom of design for these institutions is severely limited because with the required for the promotion of the printed products on the cutting table facilities no collisions may occur.

Der Erfindung liegt die Aufgabe zugrunde, die beim Beschneiden von Druckerzeugnissen entstehenden Späne insbesondere diejenigen des Frontschnitts kontinuierlich und staufrei aus dem Schneidbereich abzuführen.The invention has for its object to dissipate the cutting edges resulting from the cutting of printed products in particular those of the front section continuously and without jamming from the cutting area.

Die Aufgabe wird erfindungsgemäss mit den Merkmalen der Ansprüche 1 und 8 gelöst, und zwar dadurch, dass der Spanerfassungsraum des Schneidmessers durch ein wenigstens an der Schneidkante das Schneidmessers endendes, gewölbeförmig gekrümmtes, die Düsen aufweisendes, eine Führungswand bildendes und mit dem Schneidmesser antriebsverbundenes Führungselement ausgebildet ist.The object is achieved according to the invention with the features of claims 1 and 8, in that the Spanerfassungsraum of the cutting blade formed by a at least at the cutting edge of the cutting blade ending, curved curved, the nozzles exhibiting, a guide wall forming and drivingly connected to the cutting blade guide element is.

Die Erfindung wird anschliessend unter Bezugnahme auf die Zeichnung, auf die bezüglich aller in der Beschreibung nicht erwähnten Einzelheiten verwiesen wird, anhand von Ausführungsbeispielen erläutert. In der Zeichnung zeigen:

Fig. 1
eine einfache räumliche Darstellung einer für den Frontschnitt bestimmten Schneideinrichtung eines Dreischneiders in einer Schneidposition,
Fig. 2
eine Darstellung der in Fig. 1 gezeigten Schnei- deinrichtung bei angehobenem Schneidmesser und sich in Schneidposition befindendem Druckerzeug- nis,
Fig. 3
einen Querschnitt durch den Schnittbereich der in Fig. 1 gezeigten Schneideinrichtung und
Fig. 4
einen Querschnitt durch die in Fig. 2 darge- stellte Schneideinrichtung.
The invention will be explained below with reference to the drawing, to which reference is made with respect to all details not mentioned in the description, by means of embodiments. In the drawing show:
Fig. 1
a simple spatial representation of a cutting device intended for the front section of a three-knife trimmer in a cutting position,
Fig. 2
a representation of in Fig. 1 cutting direction shown with the cutting blade raised and the printed product in the cutting position,
Fig. 3
a cross section through the intersection of the in Fig. 1 shown cutting device and
Fig. 4
a cross section through the in Fig. 2 illustrated cutting device.

In den Fig.1 bis Fig. 4 ist eine Schneideinrichtung 23 insbesondere eines Dreischneiders für den Beschnitt einer Seitenkante eines Druckerzeugnisses 1, wie beispielsweise ein Buch, eine Broschur, Zeitschrift oder dgl., vorzugsweise an der Frontkante dargestellt. An einem stationären, nur angedeuteten Maschinengestell 20 sind eine Zufördereinrichtung 21 und ein Schneidtisch 22 angeordnet. Das an einem Messerträger 2 festgeschraubte Schneidmesser 3 bewegt sich mindestens während dem Schneidvorgang in einer Schneidebene in senkrechter und waagrechter Richtung. Daraus resultiert eine Bewegungsbahn des Schneidmessers 3 gemäss Pfeilrichtung 4. Der Messerträger 2 ist mit bekannten Mitteln, beispielsweise Schrauben, an einem Messerträgerhalter 5 befestigt, der an seinen beiden Enden in einer Führungsvorrichtung 6 des Maschinengestells 20 geführt ist. Der Antrieb des Messerträgerhalters 5 erfolgt durch eine in der Zeichnung nicht dargestellte Antriebsvorrichtung. Ebenfalls nicht dargestellte Führungsmittel sorgen dafür, dass sich schneidmesser 3, Messerträger 2 und Messerträgerhalter 5 in Pfeilrichtung 4 bewegen. Mindestens während dem Schneidprozess wird das Druckerzeugnis 1 mittels eines Pressstempels 7 auf den Schneidtisch 22 mit der Schneidleiste 30 gepresst. Dies ist notwendig, damit sich die Druckerzeugnisse 1 infolge der während dem Schneiden auftretenden Schnittkräfte nicht bewegen können. Die der Schneideinrichtung 23 vorgelagerte Zufördereinrichtung 21, fördert die Druckerzeugnisse 1 auf den Schneidtisch 22. Im dargestellten Beispiel besteht die Zufördereinrichtung 21 aus einem vorgelagerten Tisch 24, auf dem die Druckerzeugnisse 1 während der Förderung durch einen Bandförderer 25 aufliegen und einem Schieber 26, der die Druckerzeugnisse 1 in die Schneidposition auf den Schneidtisch 22 fördert. Sollen die abgeschnittenen Späne 8 nach unten weggeführt werden, muss das dem Schneidtisch 22 zugewandte Ende des Tischs 24 zurückversetzbar sein, damit ein ausreichend grosser Abführquerschnitt entstehen kann. Im dargestellten Ausführungsbeispiel ist dies so gelöst, dass das Ende des Tischs als Klappe 9 ausgebildet ist, die um eine Achse 27 schwenkbar gelagert ist. Während der Förderung von Druckerzeugnissen 1 bildet die Klappe 9 das Ende des Tischs 24, dagegen ist sie während dem Schneiden nach unten geschwenkt und hält die Spanabführeinrichtung 31 für die Späne 8 frei. Der Antrieb der Klappe 9 erfolgt zyklisch gesteuert mit bekannten Mitteln, wie Steuerkurven, elektrischen, hydraulischen oder pneumatischen Antrieben. In der Fig. 3 sind die Entstehung der Förderwirkung und die Wegförderung der abgeschnittenen Späne 8 dargestellt.In the Fig.1 to Fig. 4 is a cutting device 23 in particular a three-knife trimmer for trimming a side edge of a printed product 1, such as a book, a brochure, magazine or the like., Preferably shown on the front edge. On a stationary, only indicated machine frame 20, a feed device 21 and a cutting table 22 are arranged. The fixed to a knife carrier 2 cutting blade 3 moves at least during the cutting process in a cutting plane in the vertical and horizontal directions. The knife carrier 2 is fixed by known means, such as screws, to a knife carrier holder 5, which is guided at its two ends in a guide device 6 of the machine frame 20. The drive of the knife carrier holder 5 is effected by a drive device, not shown in the drawing. Guide means not shown also ensure that cutting blade 3, knife carrier 2 and blade holder 5 move in the direction of arrow 4. At least during the cutting process, the printed product 1 is pressed by means of a press ram 7 on the cutting table 22 with the cutting bar 30. This is necessary so that the printed products 1 can not move due to the cutting forces occurring during cutting. The feed device 21 upstream of the cutting device 23 conveys the printed products 1 onto the cutting table 22. In the example shown, the feed device 21 consists of an upstream table 24 on which the printed products 1 during conveyance by a belt conveyor 25 and a slider 26, which promotes the printed products 1 in the cutting position on the cutting table 22. If the cut chips 8 are to be led away downwards, the end of the table 24 facing the cutting table 22 must be able to be set back so that a sufficiently large discharge cross section can be created. In the illustrated embodiment, this is achieved so that the end of the table is designed as a flap 9 which is pivotally mounted about an axis 27. During the promotion of printed products 1, the flap 9 forms the end of the table 24, however, it is pivoted during cutting down and keeps the chip removal device 31 for the chips 8 free. The drive of the flap 9 is cyclically controlled by known means, such as cams, electric, hydraulic or pneumatic drives. In the Fig. 3 the emergence of the conveying effect and the displacement of the cut chips 8 are shown.

An der Frontseite sind die Seiten eines Druckerzeugnisses 1 üblicherweise nicht mit Falzen oder anderen Verbindungen gegenseitig fixiert, sodass während dem Schneiden kontinuierlich Späne 8 anfallen und abgeführt werden können. Mittels aus Düsen 11 strömende Blasluft werden die Späne 8 vom Schneidmesser 3 weggespült und aus dem Schneidbereich transportiert. Hierzu ist eine besondere Düsenanordnung vorgesehen, wobei die Düsen 11 zur Rückseite 32 des Schneidmessers 3 in etwa parallel und die Förderdüsen 12 in einem spitzen Winkel α zur Oberfläche der Führungswände 35 angeordnet sind die zusammen einen Spanerfassungsraum 33 bilden. Der Weitertransport der Späne 8 kann durch die Spanabführeinrichtung 31, beispielsweise eine Absaugeinrichtung erfolgen. Die Verteilung der Luft auf die Düsen 11,12 erfolgt aus Blasluftkammern 38,39, die über Luftanschlüsse 29 mit einer Blasluftquelle (nicht dargestellt) verbunden sind. Die Düsenanordnung dient einerseits einem Spüleffekt, bei dem die abgeschnittenen Späne 8 aus dem Schneidbereich in eine zur Schneidebene parallele Förderströmung der Blasluft versetzt werden, die die Späne 8 aus dem Schneidbereich trägt. Es ist vorteilhaft die Luftzufuhr nur solange aufrecht zu erhalten, wie dies für die Wegförderung der Späne 8 erforderlich ist. Es ist äusserst wichtig, dass die Späne 8 unmittelbar nach ihrer Entstehung und kontinuierlich weggeführt werden, weil sich sonst, insbesondere beim Abschneiden breiter Späne 8 bei dicken Druckerzeugnissen 1 ein Rückstau bilden könnte. Ein Führungselement 10, weist einen den Spänen 8 zugewandten Führungselementbereich 37 auf, der von oberhalb der Schneidkante 34 in einer stetig gekrümmten Form zum Ende 36 hin verläuft, das vorzugsweise unterhalb der Schneidkante 34 liegt und bildet einen Spanerfassungsraum 33. Es kann sinnvoll sein, das Führungselement 10 zweiteilig zu gestalten. Der dem Schneidmesser 3 näher stehende Gewölbeteil 13 ist mit ersterem in vertikaler Richtung mittels eines Schlittens 15, in Messerlängsrichtung verschiebbar verbunden, während der vom Schneidmesser 3 entferntere Gewölbeteil 14 mittels eines Gleitstücks 18 auf einer Schiene 19, vertikal nach oben zum Gewölbeteil 13 anhebbar ausgebildet sein kann. Diese Funktion kann benutzt werden, um Beschädigungen durch Kollisionen zwischen einem unvollständig auf den Schneidtisch transportierten Druckerzeugnis 1 und dem zweiten Gewölbeteil 14 zu vermeiden. Damit das Führungselement 10 nicht mit den Organen der Zufördereinrichtung 21, wie Bandförderer 25 oder Schieber 26, kollidieren kann, weist das Führungselement 10 nicht auf der gesamten Länge des Schneidmessers 3 die gleiche Form auf, sondern ist in eine Mehrzahl von Segmenten 28 aufgeteilt. Die Aufteilung in Segmente hat zusätzlich den Vorteil, dass nur so viele Segmente 28 eingebaut werden müssen, wie durch die Schnittlänge nötig sind. Um die Lücken zwischen den Segmenten 28 möglichst klein zu halten, ist das Führungselement 10 über den Schlitten 15 mit dem Messerträger 2 oder Messerträgerhalter 5 verbunden und mittels Steuerkurve 16 und Führungsrolle 17 derart geführt, dass die seitliche Bewegung des Schneidmessers 3 kompensiert wird.On the front side, the pages of a printed product 1 are usually not mutually fixed with folds or other connections, so that chips 8 continuously accumulate and can be removed during cutting. By means of blowing air flowing from nozzles 11, the chips 8 are washed away from the cutting blade 3 and transported out of the cutting area. For this purpose, a special nozzle arrangement is provided, wherein the nozzles 11 to the back 32 of the cutting blade 3 in approximately parallel and the delivery nozzles 12 are arranged at an acute angle α to the surface of the guide walls 35 which together form a Spanerfassungsraum 33. The further transport of the chips 8 can be carried out by the chip removal device 31, for example a suction device. The distribution of the air to the nozzles 11,12 takes place from Blasluftkammern 38,39, via air connections 29 are connected to a blown air source (not shown). On the one hand, the nozzle arrangement serves for a rinsing effect in which the cut chips 8 are displaced out of the cutting region into a conveying flow of the blowing air which is parallel to the cutting plane and carries the chips 8 out of the cutting region. It is advantageous to maintain the air supply only as long as required for the removal of chips 8. It is extremely important that the chips 8 are led away immediately after their formation and continuously, because otherwise, especially when cutting wide chips 8 with thick printed products 1 could form a backwater. A guide element 10 has a guide element region 37 which faces the chips 8 and extends from above the cutting edge 34 in a continuously curved shape toward the end 36, which preferably lies below the cutting edge 34, and forms a chip detection space 33 Guide element 10 to make two-piece. The vault part 13 which is closer to the cutting blade 3 is slidably connected to the former in the vertical direction by means of a carriage 15, while the vault part 14 remote from the cutting blade 3 can be raised by means of a slider 18 on a rail 19, vertically upwards to the arched part 13 can. This function can be used to avoid damage due to collisions between an incompletely transported on the cutting table printed product 1 and the second arched portion 14. So that the guide element 10 can not collide with the organs of the feed device 21, such as belt conveyor 25 or slide 26, the guide element 10 does not have the same shape over the entire length of the cutting blade 3, but is divided into a plurality of segments 28. The Division into segments has the additional advantage that only as many segments 28 must be installed, as required by the cut length. In order to keep the gaps between the segments 28 as small as possible, the guide element 10 is connected via the carriage 15 with the knife carrier 2 or knife carrier holder 5 and guided by control cam 16 and guide roller 17 such that the lateral movement of the cutting blade 3 is compensated.

Claims (8)

  1. Cutting apparatus (23) for trimming a lateral edge of at least one printed product (1), such as a book block, book, brochure or newspaper for example, consisting of a cutting table (22), to which the printed product (1) is fed into a cutting position, a press die (7) held on the cutting table (22) during the cutting process, a cutting knife (3) driven from a reversed position against the printed product (1) lying on the cutting table (22) and a counter knife or a cutting strip (30) limiting the cutting stroke of the cutting knife (3) on the cutting table (22) as well as a waste removal device (31) feeding blast air onto the cut material separated from the printed product (1) on the back of the cutting knife (3), in which a waste collection area (33) subject to blast air introduced through jets (11, 12) is arranged on the back (32) of the cutting knife (3), characterised in that the waste collection area (33) of the cutting knife (3) is formed by an arch shaped, curved guide element (10) at least ending at the cutting edge (34) of the cutting knife (3), having the jets (11, 12), forming a guide wall (35) and connected with the cutting knife (3) in a driven way.
  2. Cutting apparatus (23) according to claim 1, characterised in that the guide element (10) ends at the side of the waste collection area (33) turned away from the cutting knife (3) preferably under the cutting edge (34).
  3. Cutting apparatus (23) according to claim 1 or 2, characterised in that the jets (11, 12) are arranged in the guide element (10) distributed at least partly at acute angles (α) to a waste removal device directed downwards.
  4. Cutting apparatus (23) according to claim 3, characterised in that the jets (12) arranged in the guide element area (37) turned away from the cutting knife (3) are aligned more or less parallel to the cutting plane formed by the knife movement.
  5. Cutting apparatus (23) according to one of claims 1 to 4, characterised in that a blast air chamber (38, 39) connected to a source of blast air is arranged behind the guide wall (35) of the waste collection area (33).
  6. Cutting apparatus (23) according to claim 1 with a cutting knife (3) carrying out a vibratory movement, characterised in that the guide element (10) is guided on a cam (16) to compensate for a lateral movement by the cutting knife (3).
  7. Cutting apparatus (23) according to one of claims 1 to 6, characterised in that the guide element (10) has two arched parts (13, 14), of which the arched part (14) furthest away from the cutting knife (3) is made so that it may be lifted vertically with reference to the other arched part (13).
  8. Use of the cutting apparatus according to one of claims 1 to 7 in the case of a three knife trimmer.
EP20060405142 2006-04-04 2006-04-04 Cutting apparatus having a blowing device for waste removal Not-in-force EP1842633B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE200650008549 DE502006008549D1 (en) 2006-04-04 2006-04-04 Cutting device with a blower supplying chip removal device
EP20060405142 EP1842633B1 (en) 2006-04-04 2006-04-04 Cutting apparatus having a blowing device for waste removal
AT06405142T ATE492379T1 (en) 2006-04-04 2006-04-04 CUTTING DEVICE WITH A CHIP DISCHARGE DEVICE SUPPLYING BLOW AIR
JP2007098938A JP2007276107A (en) 2006-04-04 2007-04-04 Trimming device for trimming lateral edge
US11/730,847 US7765907B2 (en) 2006-04-04 2007-04-04 Trimming device for trimming a lateral edge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20060405142 EP1842633B1 (en) 2006-04-04 2006-04-04 Cutting apparatus having a blowing device for waste removal

Publications (2)

Publication Number Publication Date
EP1842633A1 EP1842633A1 (en) 2007-10-10
EP1842633B1 true EP1842633B1 (en) 2010-12-22

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EP20060405142 Not-in-force EP1842633B1 (en) 2006-04-04 2006-04-04 Cutting apparatus having a blowing device for waste removal

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US (1) US7765907B2 (en)
EP (1) EP1842633B1 (en)
JP (1) JP2007276107A (en)
AT (1) ATE492379T1 (en)
DE (1) DE502006008549D1 (en)

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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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DE102009034064A1 (en) * 2009-07-22 2011-01-27 Giesecke & Devrient Gmbh Banknote processing apparatus and method
JP5484079B2 (en) * 2010-01-06 2014-05-07 ホリゾン・インターナショナル株式会社 Three-way cutting machine
JP5264971B2 (en) * 2010-10-14 2013-08-14 キヤノン株式会社 Sheet processing apparatus and image forming apparatus
CN102267240B (en) * 2011-07-26 2013-11-20 句容峰岭科技有限公司 Punching machine with function of automatically picking up
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Also Published As

Publication number Publication date
JP2007276107A (en) 2007-10-25
US20070227323A1 (en) 2007-10-04
EP1842633A1 (en) 2007-10-10
US7765907B2 (en) 2010-08-03
ATE492379T1 (en) 2011-01-15
DE502006008549D1 (en) 2011-02-03

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