EP1782930B1 - Device for trimming printed products - Google Patents

Device for trimming printed products Download PDF

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Publication number
EP1782930B1
EP1782930B1 EP20050405618 EP05405618A EP1782930B1 EP 1782930 B1 EP1782930 B1 EP 1782930B1 EP 20050405618 EP20050405618 EP 20050405618 EP 05405618 A EP05405618 A EP 05405618A EP 1782930 B1 EP1782930 B1 EP 1782930B1
Authority
EP
European Patent Office
Prior art keywords
cutting
drive
cutting device
crossheads
yoke
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
EP20050405618
Other languages
German (de)
French (fr)
Other versions
EP1782930A1 (en
Inventor
Hanspeter Hediger
Daniel Rölli
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
Original Assignee
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 EP20050405618 priority Critical patent/EP1782930B1/en
Priority to JP2006297360A priority patent/JP5189755B2/en
Priority to US11/591,456 priority patent/US8316746B2/en
Publication of EP1782930A1 publication Critical patent/EP1782930A1/en
Application granted granted Critical
Publication of EP1782930B1 publication Critical patent/EP1782930B1/en
Expired - Fee Related 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
    • B26D7/01—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
    • 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
    • B26D1/04—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 linearly-movable cutting member
    • B26D1/06—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 linearly-movable cutting member wherein the cutting member reciprocates
    • B26D1/08—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 linearly-movable cutting member wherein the cutting member reciprocates of the guillotine type
    • B26D1/09—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 linearly-movable cutting member wherein the cutting member reciprocates of the guillotine type with a plurality of cutting members
    • 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
    • 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
    • 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
    • Y10T83/141—With means to monitor and control operation [e.g., self-regulating means]
    • 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
    • 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
    • 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
    • Y10T83/752—With means providing for plural steps in clamping stroke
    • 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
    • Y10T83/758—With means to adjust clamp position or stroke

Definitions

  • the invention relates to a cutting device for cutting printed products, which has at least one movable upper blade, a fixed lower blade, a movable pressing beam, a drive and a control device, wherein the printed product prior to cutting pressed with the pressing beam, leading the pressing beam after the cutting the upper blade lifted and the trimmed printed product is conveyed on with a transport device.
  • the cutting device has a first and a second cutting station, which each have at least one pressing beam with an associated outer diameter, wherein the outer diameter of the first drive and the pressing bars are connected to a second drive and wherein the pressing bars by the second drive from the cutting movement the upper knife are driven decoupled.
  • the cutting devices is associated with a transport device for conveying the printed products from a first to a second cutting station.
  • a frontal cut is made.
  • the front section is transverse to the transport direction.
  • the printed products supplied with the transport device of the second cutting station, where there on the printed product a head and a foot cut are performed simultaneously.
  • the cut on three sides print product is moved by the transport device of the cutting device.
  • the two cutting stations work simultaneously. At a first printed product of the front section and simultaneously performed on a second printed product of the top section and the foot cut.
  • the first cutting station has a movable upper blade and a fixed lower blade and a press beam also called press ruler.
  • the second cutting station has two laterally spaced movable upper blade and to each of these upper blade a fixed lower blade and coupled to the upper blade pressing bar.
  • the press beams precede the corresponding knife prior to the start of the cut, so that the printed products are compressed at the start of the cut. After cutting, the pressing beam is driven on the upper knife. If the press beam, which is driven after the upper knife lagging, lifted from the printed product, the printed product can be transported on.
  • the EP 1759820 A1 also relates to a device for three-sided trimming of printed products, with a first drive motor for the knives, a second drive motor for the transport device and a pneumatic cylinder for time-offset by the knife stroke actuation of the pressing bars. Since the pneumatic cylinder is mounted on the cutting station and thus on a movable component, both the mass to be accelerated with this component and the risk of additional vibrations are increased. This can lead to an impairment of the production performance and also the functional reliability. In addition, the required movement of the pressing bars can always be done only in response to the movement of the cutting station.
  • the invention has for its object to provide a cutting device, which allow an even higher production capacity and yet function reliable.
  • the object is achieved by a device according to claim 1.
  • the cutting device is characterized in that the pressing beam is driven decoupled from the cutting movement of the upper blade.
  • the press beam is driven by a motor.
  • This motor is preferably a servomotor. This is arranged outside the cutting station or the cutting stations.
  • the cutting device is a three-knife trimmer with a first cutting station for a front section and a second cutting station for a top and bottom section. All three beams are powered by a single motor and especially one Servomotor driven. The servo motor is preferably fixedly positioned outside the two cutting stations.
  • a gear and in particular a coupling gear is provided, which is preferably mounted on a yoke of the cutting device and connects to perform the anticipatory movement of the press beam decoupled from the cutting drive with the press beam.
  • the coupling gear is formed so that it connects the motor with all three pressing bars.
  • the drive for the pressing bars is preferably a motor, in particular a servomotor.
  • the inventive cutting device 1 according to FIG. 3 a first cutting station S1, which are supplied with a transport device T, for example, a conveyor belt intermittently printed products D in the direction of arrow 29.
  • This first cutting station S1 is used for implementation a frontal cut on an open edge.
  • the printed product D is here for example a stapled printed sheet with which a booklet or the like is to be produced. If the front cut is carried out, then the printed product D is fed with the transport device T in the direction of the arrow 30 to a second cutting station S2. With this cutting station S2, the printed product D is cut on a head section and at the same time on a foot section.
  • the transport of the printed product D from the first cutting station S1 to the second cutting station S2 is controlled by the transport device T.
  • the cutting device 1 has a here only in FIG. 1 indicated machine frame 2, on which the two cutting stations S1 and S2 are attached.
  • the cutting devices are attached to a vertically movable yoke 9.
  • the drive of the yoke 9 takes place with a first drive A1, which has, for example, shafts and tie rods, not shown here. Such drives are known per se and therefore need not be further explained.
  • the control takes place with a in FIG. 1 only schematically indicated control device 27th
  • the upper blade 6 has in a conventional manner an inclined cutting edge 6a, which cooperates to carry out the cut with a fixed lower blade 4. With the double arrow 13, the movements of the yoke 9 and the upper blade 6 are indicated. During the cutting process, the upper blade 6 is moved from top to bottom against a horizontal upper side 3 of the printed product D. After the cutting process, the upper blade moves 6 after reaching a bottom dead center up to reach a top dead center. These movements take place in time with the transport device T.
  • a press bar 5 is mounted with guides 8.
  • This known pressing bar 5 is used for pressing the printed product D.
  • the pressing pressure is exerted, for example, with springs 7, which are biased between the yoke 9 and the pressing bar 5. If the yoke 9 is moved downwards with the drive A1, then the pressing bar 5 likewise moves downwards until it has reached the upper side 3 of the printed product D. The pressing bar 5 is thus preceded with respect to the upper blade 6.
  • the springs 7 are additionally tensioned and accordingly the pressing bar 5 is pressed against the product D. Subsequently, the upper blade 6 reaches the printed product D and cuts it with the cutting edge 6a in a known manner.
  • the printed product D is thus pressed and cut pressed in a second phase.
  • the process is the same as in the first cutting station S1.
  • the control of the second cutting station S2 also takes place via the control device 27.
  • the pressing beam 5 is lifted in advance and decoupled from the movement of the yoke 9 by a second drive A2.
  • this drive A2 is also controlled by the control device 27 and connected via a gear 10 to the pressing bar 5.
  • the drive A2 has a motor 12 which is mounted on a bearing block.
  • the bearing block 28 is located outside or next to the cutting device.
  • the motor 12 is preferably a known servo motor.
  • the transmission 10 is preferably a coupling gear and supported on a bearing 11 on the yoke 9.
  • the transmission 10 has a first lever 10 a, which is connected to the rotor of the motor 12.
  • this lever 10a is connected to a connecting rod 10b, which in turn is connected via a hinge 15 with a further lever 10c.
  • This lever 10c is connected via the bearing 11 fixed to a third lever 10d.
  • This lever 10d is connected to the pressing beam 5 via a hinge 16 and via a connecting rod 10e.
  • the transmission 10 can also be designed so that it is mounted with two or more bearings 11 on the yoke 9.
  • FIG. 2a shows the initial state in which the yoke 9 is in a top dead center.
  • the pressing bar 5 is also in an upper position.
  • the printed product D is positioned for the cut and lies with a bottom 31 flat on the lower blade 4.
  • a back 3a extends parallel to the cutting plane of the upper knife 6.
  • the supply of the printed product D is carried out in the direction of the arrow 19.
  • the upper blade 6 and the pressing beam 5 are now moved downward in the direction of the arrow 17 or 18 by a corresponding movement of the yoke 9.
  • the printed product D is according to FIG. 2b pressed first from the press bar 5 and then cut by the upper blade 6, which is in accordance with Arrow 20 moves further down. From the printed product D, a part 21 is completely cut along a cut surface 22 and this removed in a conventional manner, for example, sucked off.
  • the upper knife 6 is up to the in Figure 2c shown bottom dead center moves.
  • the pressing bar 5 is moved immediately upward in accordance with arrow 24.
  • the printed product D is transported freely and in the direction of the arrow 23.
  • the movement of the press beam 5 in the direction of the arrow 24 is effected by the second drive A2, which is decoupled from the movement of the yoke 9.
  • the motor 12 is driven in a clockwise direction.
  • the connecting rod 10b thus moves here to the right and the connecting rod 10e with the pressing bar 5 upwards.
  • the working range of this opening movement of the press beam 5 is controlled by the control device 27 via the motor 12, so that the lifting time is independent of the thickness of the printed product D.
  • the release time of the printed product D is thus no longer dependent on the thickness of the printed product D and always takes place at the same time or machine angle.
  • the transport of the printed product D in the direction of arrow 23 Due to the anticipatory movement of the press beam 5 is correspondingly more time than previously available for the transport of the printed product D in the direction of arrow 23. As a result, for example, the transport can be done gently in this direction, for example, the acceleration can be kept lower than before.
  • the in the FIGS. 2a to 2d Movements shown are preferably carried out simultaneously on all three upper blades 6 and press beams 5.
  • the transmission 10 is connected in this case via not shown here gear parts simultaneously with all three press beams 5.
  • Two printed products D are cut simultaneously.
  • the first printed product D is cut on the front and the second printed product D on the head and on the foot.
  • the cut only at the front printed product D is supplied to the transport device T of the second cutting station S2.
  • the cutting device 1 according to the invention is preferably a three-knife trimmer.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Details Of Cutting Devices (AREA)
  • Nonmetal Cutting Devices (AREA)

Description

Die Erfindung betrifft eine Schneidvorrichtung zum Beschneiden von Druckprodukten, die wenigstens ein bewegliches Obermesser, ein feststehendes Untermesser, einen beweglichen Pressbalken, einen Antrieb sowie eine Steuervorrichtung aufweist, wobei das Druckprodukt vor dem Schneiden mit dem Pressbalken gepresst, der Pressbalken nach den Schneiden dem Obermesser vorauseilend angehoben und das beschnittene Druckprodukt mit einer Transportvorrichtung weitergefördert wird. Dabei weist die Schneidvorrichtung eine erste und eine zweite Schneidstation auf, welche jeweils zumindest einen Pressbalken mit einem zugeordneten Obermesser besitzen, wobei die Obermesser mit dem ersten Antrieb und die Pressbalken mit einem zweiten Antrieb verbunden sind und wobei die Pressbalken durch den zweiten Antrieb von der Schneidbewegung der Obermesser entkoppelt angetrieben sind.The invention relates to a cutting device for cutting printed products, which has at least one movable upper blade, a fixed lower blade, a movable pressing beam, a drive and a control device, wherein the printed product prior to cutting pressed with the pressing beam, leading the pressing beam after the cutting the upper blade lifted and the trimmed printed product is conveyed on with a transport device. In this case, the cutting device has a first and a second cutting station, which each have at least one pressing beam with an associated outer diameter, wherein the outer diameter of the first drive and the pressing bars are connected to a second drive and wherein the pressing bars by the second drive from the cutting movement the upper knife are driven decoupled.

Vorrichtungen der genannten Art werden insbesondere in der druckverarbeitenden Industrie, beispielsweise zum Beschneiden von gehefteten Papierbogen an drei offenen Rändern durchgeführt. Der Schneidvorrichtungen ist eine Transportvorrichtung zum Fördern der Druckprodukte von einer ersten zu einer zweiten Schneidstation zugeordnet. In der ersten Schneidstation wird ein Frontschnitt durchgeführt. Der Frontschnitt erfolgt quer zur Transportrichtung. Nach dem Frontschnitt werden die Druckprodukte mit der Transportvorrichtung der zweiten Schneidstation zugeführt, wobei dort am Druckprodukt ein Kopf- sowie ein Fussschnitt gleichzeitig durchgeführt werden. Das an drei Seiten geschnittene Druckprodukt wird mit der Transportvorrichtung von der Schneidvorrichtung fortbewegt.Devices of the type mentioned are carried out in particular in the printing industry, for example for trimming stapled paper sheets at three open edges. The cutting devices is associated with a transport device for conveying the printed products from a first to a second cutting station. In the first cutting station, a frontal cut is made. The front section is transverse to the transport direction. After the front cut, the printed products supplied with the transport device of the second cutting station, where there on the printed product a head and a foot cut are performed simultaneously. The cut on three sides print product is moved by the transport device of the cutting device.

Die beiden Schneidstationen arbeiten gleichzeitig. An einem ersten Druckprodukt wird der Frontschnitt und gleichzeitig an einem zweiten Druckprodukt der Kopfschnitt und der Fussschnitt durchgeführt. Die erste Schneidstation besitzt ein bewegliches Obermesser und ein feststehendes Untermesser sowie ein Pressbalken auch Presslineal genannt. Die zweite Schneidstation besitzt zwei im seitlichen Abstand zueinander angeordnete bewegliche Obermesser und zu jedem dieser Obermesser ein feststehendes Untermesser sowie einen mit dem Obermesser gekoppelten Pressbalken. Die Pressbalken laufen dem entsprechenden Messer vor dem Beginn des Schnittes voraus, so dass die Druckprodukte beim Schnittbeginn zusammengepresst sind. Nach dem Schnitt ist der Pressbalken dem Obermesser nachlaufend angetrieben. Ist der Pressbalken, der dem Obermesser nacheilend angetrieben ist, vom Druckprodukt abgehoben, kann das Druckprodukt weitertransportiert werden.The two cutting stations work simultaneously. At a first printed product of the front section and simultaneously performed on a second printed product of the top section and the foot cut. The first cutting station has a movable upper blade and a fixed lower blade and a press beam also called press ruler. The second cutting station has two laterally spaced movable upper blade and to each of these upper blade a fixed lower blade and coupled to the upper blade pressing bar. The press beams precede the corresponding knife prior to the start of the cut, so that the printed products are compressed at the start of the cut. After cutting, the pressing beam is driven on the upper knife. If the press beam, which is driven after the upper knife lagging, lifted from the printed product, the printed product can be transported on.

Aus der US 3732766 A ist eine Schneidvorrichtung für Papierbogen mit zwei Schneidstationen für den Frontschnitt bzw. den Kopf- und Fussschnitt bekannt. Diese Lösung weist einen einzigen Antrieb auf, von dem aus die beiden über eine Kette miteinander verbundenen Schneidstationen betrieben werden. Die Pressbalken werden ebenfalls über den einzigen Antrieb betrieben, allerdings unter Zwischenschaltung einer Steuerkurve sowie eines Gestänges, so dass eine gegenüber dem Messerhub zeitversetzte Betätigung der Pressbalken realisiert werden kann.From the US 3732766 A a cutting device for paper sheets with two cutting stations for the front section and the head and foot section is known. This solution has a single drive, from which the two are operated via a chain interconnected cutting stations. The press beams are also operated via the single drive, but with the interposition of a control cam and a linkage, so that over the knife stroke time-delayed operation of the pressing bars can be realized.

Die EP 1759820 A1 betrifft gleichfalls eine Vorrichtung zum dreiseitigen Beschnitt von Druckprodukten, mit einem ersten Antriebsmotor für die Messer, einem zweiten Antriebsmotor für die Transportvorrichtung und einem Pneumatikzylinder zur vom Messerhub zeitversetzten Betätigung der Pressbalken. Da der Pneumatikzylinder auf der Schneidstation und damit auf einem beweglichen Bauteil befestigt ist, werden sowohl die mit diesem Bauteil zu beschleunigende Masse als auch die Gefahr des Auftretens zusätzlicher Vibrationen erhöht. Dies kann zu einer Beeinträchtigung der Produktionsleistung und auch der Funktionssicherheit führen. Zudem kann die erforderliche Bewegung der Pressbalken stets nur in Abhängigkeit von der Bewegung der Schneidstation erfolgten.The EP 1759820 A1 also relates to a device for three-sided trimming of printed products, with a first drive motor for the knives, a second drive motor for the transport device and a pneumatic cylinder for time-offset by the knife stroke actuation of the pressing bars. Since the pneumatic cylinder is mounted on the cutting station and thus on a movable component, both the mass to be accelerated with this component and the risk of additional vibrations are increased. This can lead to an impairment of the production performance and also the functional reliability. In addition, the required movement of the pressing bars can always be done only in response to the movement of the cutting station.

Aus der EP 1132183 A2 ist eine Vorrichtung gemäss dem Oberbegriff des Anspruchs 1 bekannt. Dabei sind die Pressbalken jeweils an einer vertikalen Spindelführung angeordnet. Da sowohl beim Absenken als auch beim Anheben der Pressbalken stets der Spindelweg zurückgelegt werden muss, ist diese Lösung lediglich für langsam laufende Maschinen mit geringer Produktionsleistung geeignet.From the EP 1132183 A2 a device according to the preamble of claim 1 is known. The press beams are each arranged on a vertical spindle guide. Since both the lowering and the lifting of the press beams always the spindle travel must be covered, this solution is only suitable for slow-running machines with low production capacity.

Von solchen Schneidvorrichtungen werden zunehmend engere Schneidtoleranzen und gleichzeitig höhere Produktionsleistungen verlangt. Entsprechend werden für den intermittierenden Transport bzw. Vorschub der Druckprodukte in der Schneidvorrichtung reaktionsschnellere und präzisere Transport- und Regelsysteme gefordert. Mit den verfügbaren Antriebssystemen für den Produktvorschub kann dies bisher mit den bekannten Verfahren und Vorrichtungen nur bis zu einer gewissen Taktzahl bzw. Produktionsleistung erfüllt werden.Such cutting devices increasingly demand tighter cutting tolerances and, at the same time, higher production capacities. Accordingly, faster and more precise transport and control systems are required for the intermittent transport or feed of the printed products in the cutting device. With the available drive systems for the product feed, this can so far with the known Processes and devices can be met only up to a certain number of cycles or production capacity.

Der Erfindung liegt die Aufgabe zugrunde, eine Schneidvorrichtung zu schaffen, die eine noch höhere Produktionsleistung ermöglichen und die dennoch funktionssicher arbeiten.The invention has for its object to provide a cutting device, which allow an even higher production capacity and yet function reliable.

Die Aufgabe ist durch ein Vorrichtung gemäß Anspruch 1 gelöst.The object is achieved by a device according to claim 1.

Die Schneidvorrichtung ist dadurch gekennzeichnet, dass der Pressbalken von der Schneidbewegung des Obermessers entkoppelt angetrieben ist. Der Pressbalken wird von einem Motor angetrieben. Dieser Motor ist vorzugsweise ein Servomotor. Dieser ist ausserhalb der Schneidstation bzw. der Schneidstationen angeordnet.The cutting device is characterized in that the pressing beam is driven decoupled from the cutting movement of the upper blade. The press beam is driven by a motor. This motor is preferably a servomotor. This is arranged outside the cutting station or the cutting stations.

Die Schneidvorrichtung ist ein Dreischneider mit einer ersten Schneidstation für einen Frontschnitt und einer zweiten Schneidstation für einen Kopf- und Fussschnitt. Alle drei Pressbalken werden von einem einzigen Motor und insbesondere einem Servomotor angetrieben. Der Servomotor ist vorzugsweise ausserhalb der beiden Schneidstationen fest positioniert.The cutting device is a three-knife trimmer with a first cutting station for a front section and a second cutting station for a top and bottom section. All three beams are powered by a single motor and especially one Servomotor driven. The servo motor is preferably fixedly positioned outside the two cutting stations.

Nach einer Weiterbildung der Erfindung ist ein Getriebe und insbesondere ein Koppelgetriebe vorgesehen, das vorzugsweise an einem Joch der Schneideinrichtung gelagert ist und das zur Durchführung der vorauseilenden Bewegung des Pressbalkens einen vom Schneidvorgang entkoppelten Antrieb mit dem Pressbalken verbindet. Vorzugsweise ist das Koppelgetriebe so ausgebildet, dass es den Motor mit allen drei Pressbalken verbindet. Auch hier ist der Antrieb für die Pressbalken vorzugsweise ein Motor, insbesondere ein Servomotor.According to a development of the invention, a gear and in particular a coupling gear is provided, which is preferably mounted on a yoke of the cutting device and connects to perform the anticipatory movement of the press beam decoupled from the cutting drive with the press beam. Preferably, the coupling gear is formed so that it connects the motor with all three pressing bars. Again, the drive for the pressing bars is preferably a motor, in particular a servomotor.

Ein Ausführungsbeispiel der Erfindung wird nachfolgend anhand der Zeichnung näher erläutert. Es zeigen:

Fig. 1
schematisch eine Ansicht einer erfindungsgemässen Schneidvorrichtung,
Fig. 2a-2d
schematisch einzelne Schritte der Schneidvorrichtung und insbesondere der Bewegungen des Obermessers und des Pressbalkens und
FiG. 3
schematisch eine Draufsicht auf die erfindungsgemässe Schneidvorrichtung.
An embodiment of the invention will be explained in more detail with reference to the drawing. Show it:
Fig. 1
1 is a schematic view of a cutting device according to the invention;
Fig. 2a-2d
schematically individual steps of the cutting device and in particular the movements of the upper blade and the press beam and
FiG. 3
schematically a plan view of the inventive cutting device.

Die erfindungsgemässe Schneideinrichtung 1 weist gemäss Figur 3 eine erste Schneidstation S1 auf, welcher mit einer Transportvorrichtung T, beispielsweise einem Transportband intermittierend Druckprodukte D in Richtung des Pfeiles 29 zugeführt werden. Diese erste Schneidstation S1 dient zur Durchführung eines Frontschnittes an einer offenen Kante. Das Druckprodukt D ist hier beispielsweise ein gehefteter Druckbogen, mit dem eine Broschüre oder dergleichen hergestellt werden soll. Ist der Frontschnitt durchgeführt, so wird das Druckprodukt D mit der Transportvorrichtung T in Richtung des Pfeils 30 einer zweiten Schneidstation S2 zugeführt. Mit dieser Schneidstation S2 wird das Druckprodukt D an einer Kopfpartie und gleichzeitig an einer Fusspartie geschnitten. Der Transport des Druckproduktes D von der ersten Schneidstation S1 zur zweiten Schneidstation S2 erfolgt gesteuert mit der Transportvorrichtung T. Die Schneideinrichtung 1 weist ein hier lediglich in Figur 1 angedeutetes Maschinengestell 2 auf, auf dem die beiden Schneidstationen S1 und S2 befestigt sind.The inventive cutting device 1 according to FIG. 3 a first cutting station S1, which are supplied with a transport device T, for example, a conveyor belt intermittently printed products D in the direction of arrow 29. This first cutting station S1 is used for implementation a frontal cut on an open edge. The printed product D is here for example a stapled printed sheet with which a booklet or the like is to be produced. If the front cut is carried out, then the printed product D is fed with the transport device T in the direction of the arrow 30 to a second cutting station S2. With this cutting station S2, the printed product D is cut on a head section and at the same time on a foot section. The transport of the printed product D from the first cutting station S1 to the second cutting station S2 is controlled by the transport device T. The cutting device 1 has a here only in FIG. 1 indicated machine frame 2, on which the two cutting stations S1 and S2 are attached.

Die Schneidvorrichtungen sind an einem vertikal beweglichen Joch 9 befestigt. Der Antrieb des Jochs 9 erfolgt mit einem ersten Antrieb A1, der beispielsweise hier nicht gezeigte Wellen und Zugstangen aufweist. Solche Antriebe sind an sich bekannt und brauchen deshalb nicht weiter erläutert zu werden. Die Steuerung erfolgt mit einer in Figur 1 lediglich schematisch angedeuteten Steuervorrichtung 27.The cutting devices are attached to a vertically movable yoke 9. The drive of the yoke 9 takes place with a first drive A1, which has, for example, shafts and tie rods, not shown here. Such drives are known per se and therefore need not be further explained. The control takes place with a in FIG. 1 only schematically indicated control device 27th

Das Obermesser 6 besitzt in an sich bekannter Weise eine schräg verlaufende Schneidkante 6a, die zur Durchführung des Schnittes mit einem feststehenden Untermesser 4 zusammenarbeitet. Mit dem Doppelpfeil 13 sind die Bewegungen des Jochs 9 bzw. des Obermessers 6 angedeutet. Beim Schneidvorgang wird das Obermesser 6 von oben nach unten gegen eine horizontale Oberseite 3 des Druckproduktes D bewegt. Nach dem Schnittvorgang bewegt sich das Obermesser 6 nach Erreichen eines unteren Totpunktes nach oben bis zum Erreichen eines oberen Totpunktes. Diese Bewegungen erfolgen im Takt mit der Transportvorrichtung T.The upper blade 6 has in a conventional manner an inclined cutting edge 6a, which cooperates to carry out the cut with a fixed lower blade 4. With the double arrow 13, the movements of the yoke 9 and the upper blade 6 are indicated. During the cutting process, the upper blade 6 is moved from top to bottom against a horizontal upper side 3 of the printed product D. After the cutting process, the upper blade moves 6 after reaching a bottom dead center up to reach a top dead center. These movements take place in time with the transport device T.

Am Joch 9 ist mit Führungen 8 ein Pressbalken 5 gelagert. Dieser an sich bekannte Pressbalken 5 dient zum Pressen des Druckproduktes D. Der Pressdruck wird beispielsweise mit Federn 7 ausgeübt, die zwischen dem Joch 9 und dem Pressbalken 5 vorgespannt sind. Wird das Joch 9 mit dem Antrieb A1 nach unten bewegt, so bewegt sich der Pressbalken 5 ebenfalls nach unten, bis er die Oberseite 3 des Druckproduktes D erreicht hat. Der Pressbalken 5 ist damit bezüglich des Obermessers 6 vorlaufend. Bei der Weiterbewegung des Jochs 9 werden die Federn 7 zusätzlich gespannt und entsprechend wird der Pressbalken 5 am Produkt D angepresst. Nachfolgend erreicht das Obermesser 6 das Druckprodukt D und schneidet dieses mit der Schneidkante 6a in bekannter Weise. In einer ersten Phase wird somit das Druckprodukt D gepresst und in einer zweiten Phase gepresst geschnitten. Das Gleiche gilt auch für die Obermesser und Pressbalken der zweiten Schneidstation S2 gleichzeitig. Der Vorgang ist gleich wie bei der ersten Schneidstation S1. Die Steuerung der zweiten Schneidstation S2 erfolgt ebenfalls über die Steuervorrichtung 27.At the yoke 9 is a press bar 5 is mounted with guides 8. This known pressing bar 5 is used for pressing the printed product D. The pressing pressure is exerted, for example, with springs 7, which are biased between the yoke 9 and the pressing bar 5. If the yoke 9 is moved downwards with the drive A1, then the pressing bar 5 likewise moves downwards until it has reached the upper side 3 of the printed product D. The pressing bar 5 is thus preceded with respect to the upper blade 6. In the further movement of the yoke 9, the springs 7 are additionally tensioned and accordingly the pressing bar 5 is pressed against the product D. Subsequently, the upper blade 6 reaches the printed product D and cuts it with the cutting edge 6a in a known manner. In a first phase, the printed product D is thus pressed and cut pressed in a second phase. The same applies to the upper knives and press beams of the second cutting station S2 at the same time. The process is the same as in the first cutting station S1. The control of the second cutting station S2 also takes place via the control device 27.

Nach der Durchführung des Schnittes durch eine Schneidvorrichtung wird der Pressbalken 5 vorauseilend und entkoppelt von der Bewegung des Jochs 9 von einem zweiten Antrieb A2 angehoben. Wie die Figur 1 zeigt, ist dieser Antrieb A2 ebenfalls von der Steuervorrichtung 27 gesteuert und über ein Getriebe 10 mit dem Pressbalken 5 verbunden. Der Antrieb A2 besitzt einen Motor 12, der auf einem Lagerbock gelagert ist. Der Lagerbock 28 befindet sich ausserhalb bzw. neben der Schneideinrichtung. Der Motor 12 ist vorzugsweise ein an sich bekannter Servomotor. Das Getriebe 10 ist vorzugsweise ein Koppelgetriebe und an einem Lager 11 am Joch 9 abgestützt. Das Getriebe 10 besitzt einen ersten Hebel 10a, der mit dem Rotor des Motors 12 verbunden ist. Über ein Gelenk 14 ist dieser Hebel 10a mit einer Verbindungsstange 10b verbunden, die wiederum über ein Gelenk 15 mit einem weiteren Hebel 10c verbunden ist. Dieser Hebel 10c ist über das Lager 11 fest mit einem dritten Hebel 10d verbunden. Dieser Hebel 10d ist über ein Gelenk 16 und über eine Verbindungsstange 10e mit dem Pressbalken 5 verbunden. Je nach Drehrichtung des Motors 12 wird über das Getriebe 10 der Pressbalken 5 in Figur 1 nach oben oder nach unten bewegt. Das Getriebe 10 kann auch so ausgeführt werden, dass es mit zwei oder mehr Lagern 11 am Joch 9 gelagert ist.After the cutting has been carried out by a cutting device, the pressing beam 5 is lifted in advance and decoupled from the movement of the yoke 9 by a second drive A2. As the FIG. 1 shows, this drive A2 is also controlled by the control device 27 and connected via a gear 10 to the pressing bar 5. The drive A2 has a motor 12 which is mounted on a bearing block. The bearing block 28 is located outside or next to the cutting device. The motor 12 is preferably a known servo motor. The transmission 10 is preferably a coupling gear and supported on a bearing 11 on the yoke 9. The transmission 10 has a first lever 10 a, which is connected to the rotor of the motor 12. About a hinge 14, this lever 10a is connected to a connecting rod 10b, which in turn is connected via a hinge 15 with a further lever 10c. This lever 10c is connected via the bearing 11 fixed to a third lever 10d. This lever 10d is connected to the pressing beam 5 via a hinge 16 and via a connecting rod 10e. Depending on the direction of rotation of the motor 12 is on the gear 10 of the pressing bar 5 in FIG. 1 moved up or down. The transmission 10 can also be designed so that it is mounted with two or more bearings 11 on the yoke 9.

Nachfolgend wird anhand der Figuren 2a bis 2d der Schneidvorgang näher erläutert.The following is based on the FIGS. 2a to 2d the cutting process explained in more detail.

Die Figur 2a zeigt den Ausgangszustand, in dem sich das Joch 9 in einem oberen Totpunkt befindet. Der Pressbalken 5 befindet sich ebenfalls in einer oberen Position. Das Druckprodukt D ist für den Schnitt positioniert und liegt mit einer Unterseite 31 flach auf dem Untermesser 4 auf. Ein Rücken 3a verläuft parallel zur Schnittebene des Obermessers 6. Die Zuführung des Druckproduktes D ist in Richtung des Pfeils 19 erfolgt. Zur Durchführung des Schnittes werden nun durch eine entsprechende Bewegung des Jochs 9 das Obermesser 6 und der Pressbalken 5 in Richtung des Pfeiles 17 bzw. 18 gleichzeitig nach unten bewegt. Wie bereits oben erläutert, wird hierbei das Druckprodukt D gemäss Figur 2b vom Pressbalken 5 zuerst gepresst und anschliessend vom Obermesser 6 geschnitten, das sich gemäss Pfeil 20 weiter nach unten bewegt. Vom Druckprodukt D wird entlang einer Schnittfläche 22 ein Teil 21 vollständig abgeschnitten und dieser in an sich bekannter Weise entfernt, beispielsweise abgesogen.The FIG. 2a shows the initial state in which the yoke 9 is in a top dead center. The pressing bar 5 is also in an upper position. The printed product D is positioned for the cut and lies with a bottom 31 flat on the lower blade 4. A back 3a extends parallel to the cutting plane of the upper knife 6. The supply of the printed product D is carried out in the direction of the arrow 19. To carry out the cut, the upper blade 6 and the pressing beam 5 are now moved downward in the direction of the arrow 17 or 18 by a corresponding movement of the yoke 9. As already explained above, in this case the printed product D is according to FIG. 2b pressed first from the press bar 5 and then cut by the upper blade 6, which is in accordance with Arrow 20 moves further down. From the printed product D, a part 21 is completely cut along a cut surface 22 and this removed in a conventional manner, for example, sucked off.

Das Obermesser 6 wird bis zu dem in Figur 2c gezeigten unteren Totpunkt bewegt. Im Bereich des Totpunktes wird der Pressbalken 5 gemäss Pfeil 24 sofort nach oben bewegt. Dadurch wird das Druckprodukt D frei und in Richtung des Pfeils 23 weitertransportiert. Die Bewegung des Pressbalkens 5 in Richtung des Pfeils 24 erfolgt durch den zweiten Antrieb A2, der von der Bewegung des Jochs 9 entkoppelt ist. In der Ansicht gemäss Figur 1 wird hierzu der Motor 12 im Uhrzeigersinn angetrieben. Die Verbindungsstange 10b bewegt sich hier somit nach rechts und die Verbindungsstange 10e mit dem Pressbalken 5 nach oben. Der Arbeitsbereich dieser Öffnungsbewegung des Pressbalkens 5 wird von der Steuervorrichtung 27 über den Motor 12 gesteuert, so dass der Anhebezeitpunkt unabhängig ist von der Dicke des Druckproduktes D. Der Freigabezeitpunkt des Druckproduktes D ist damit nicht mehr von der Dicke des Druckproduktes D abhängig und erfolgt immer zum gleichen Zeitpunkt bzw. Maschinenwinkel. Nach dem Anheben wird der Pressbalken 5 gemäss Figur 2d in Richtung des Pfeils 25 weiter nach oben bewegt, wobei der Pressbalken 5 im oberen Totpunkt von der Aufwärtsbewegung des Joches 9 wieder eingeholt wird. Das Obermesser 6 und der Pressbalken 5 befinden sich somit schliesslich jeweils wieder im oberen Totpunkt.The upper knife 6 is up to the in Figure 2c shown bottom dead center moves. In the area of the dead center, the pressing bar 5 is moved immediately upward in accordance with arrow 24. As a result, the printed product D is transported freely and in the direction of the arrow 23. The movement of the press beam 5 in the direction of the arrow 24 is effected by the second drive A2, which is decoupled from the movement of the yoke 9. In the view according to FIG. 1 For this purpose, the motor 12 is driven in a clockwise direction. The connecting rod 10b thus moves here to the right and the connecting rod 10e with the pressing bar 5 upwards. The working range of this opening movement of the press beam 5 is controlled by the control device 27 via the motor 12, so that the lifting time is independent of the thickness of the printed product D. The release time of the printed product D is thus no longer dependent on the thickness of the printed product D and always takes place at the same time or machine angle. After lifting the pressing bar 5 is according to Figure 2d in the direction of the arrow 25 moves further upward, the pressing bar 5 is overtaken at top dead center of the upward movement of the yoke 9 again. The upper blade 6 and the pressing bar 5 are thus finally each again at top dead center.

Bei der genannten Anhebebewegung des Pressbalkens 5 werden die Federn 7 noch weiter gespannt bzw. zusammengedrückt.In the mentioned lifting movement of the press beam 5, the springs 7 are even further tensioned or compressed.

Durch die vorauseilende Bewegung des Pressbalkens 5 steht für den Transport des Druckproduktes D in Richtung des Pfeils 23 entsprechend mehr Zeit als früher zur Verfügung. Dadurch kann beispielsweise der Transport in dieser Richtung schonender erfolgen, beispielsweise die Beschleunigung niedriger gehalten werden als bisher.Due to the anticipatory movement of the press beam 5 is correspondingly more time than previously available for the transport of the printed product D in the direction of arrow 23. As a result, for example, the transport can be done gently in this direction, for example, the acceleration can be kept lower than before.

Die in den Figuren 2a bis 2d gezeigten Bewegungen erfolgen vorzugsweise gleichzeitig an allen drei Obermessern 6 und Pressbalken 5. Das Getriebe 10 ist in diesem Fall über hier nicht gezeigte Getriebeteile gleichzeitig mit allen drei Pressbalken 5 verbunden. Es werden zwei Druckprodukte D gleichzeitig geschnitten. Das erste Druckprodukt D wird an der Front und das zweite Druckprodukt D am Kopf und am Fuss geschnitten. Das lediglich an der Front geschnittene Druckprodukt D wird mit der Transportvorrichtung T der zweiten Schneidstation S2 zugeführt. Grundsätzlich wäre es auch möglich, die drei Pressbalken 5 durch jeweils einen Servomotor anzutreiben. Dies wäre aber wesentlich aufwendiger als der genannte gemeinsame Antrieb über ein Getriebe 10. Die erfindungsgemässe Schneideinrichtung 1 ist vorzugsweise ein Dreischneider.The in the FIGS. 2a to 2d Movements shown are preferably carried out simultaneously on all three upper blades 6 and press beams 5. The transmission 10 is connected in this case via not shown here gear parts simultaneously with all three press beams 5. Two printed products D are cut simultaneously. The first printed product D is cut on the front and the second printed product D on the head and on the foot. The cut only at the front printed product D is supplied to the transport device T of the second cutting station S2. In principle, it would also be possible to drive the three pressing bars 5 by a respective servomotor. However, this would be considerably more complicated than the named common drive via a gear 10. The cutting device 1 according to the invention is preferably a three-knife trimmer.

Claims (9)

  1. Cutting device for trimming printed products (D) with a control device (27), a first and a second drive (A1, A2), a conveying device (T) and a first and a second cutting unit (S1, S2), which each have at least one moveable upper knife (6), a fixed lower knife (4) and a moveable crosshead (5), in which the upper knives (6) are connected to the first drive (A1) and the crossheads (5) are connected to the second drive (A2), in which the crossheads (5) are made so that they may be lifted in advance of the upper knives (6) after cutting and therefore are made so that they may be driven by the second drive (A2) decoupled from the cutting movement of the upper knives (6), and in which the second drive (A2) has a motor (12) arranged outside the cutting unit (S1, S2), characterised in that the upper knives (6) are fastened to a common yoke (9) moving vertically and the crossheads are accommodated on the yoke (9).
  2. Cutting device according to claim 1, characterised in that the motor (12) of the second drive (A2) and the control device (27) are made in such a way that a lifting time of the crossheads (5) may be controlled.
  3. Cutting device according to claim 1 or 2, characterised in that the crossheads (5) may be lifted in advance of the upper knives (6) according to a thickness of the printed products (D).
  4. Cutting device according to one of claims 1 to 3, characterised in that the motor (12) of the second drive (A2) is made as a servomotor.
  5. Cutting device according to one of claims 1 to 4, characterised in that the motor (12) is accommodated on a bearing block (28).
  6. Cutting device according to one of claims 1 to 5, characterised in that the crossheads (5) are connected to the second drive (A2) through a gear (10), particularly a mechanical linkage, during the lifting movement.
  7. Cutting device according to claim 6, characterised in that it is made as a three-knife trimmer and the gear (10) is connected to all the crossheads (5) of the cutting device (1) at the same time.
  8. Cutting device according to claim 6 or 7, characterised in that the gear (10) is fastened to a yoke (9) of the upper knife (6).
  9. Cutting device according to claim 8, characterised in that the gear (10) is arranged on two bearing positions at a distance from each other on the yoke (9).
EP20050405618 2005-11-02 2005-11-02 Device for trimming printed products Expired - Fee Related EP1782930B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP20050405618 EP1782930B1 (en) 2005-11-02 2005-11-02 Device for trimming printed products
JP2006297360A JP5189755B2 (en) 2005-11-02 2006-11-01 Method and apparatus for cutting printed matter
US11/591,456 US8316746B2 (en) 2005-11-02 2006-11-02 Method and device for trimming print products

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20050405618 EP1782930B1 (en) 2005-11-02 2005-11-02 Device for trimming printed products

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EP1782930B1 true EP1782930B1 (en) 2012-03-14

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JP5961790B2 (en) * 2012-03-06 2016-08-02 内田　仁 Sheet bundle cutting device
US9463577B2 (en) * 2014-04-01 2016-10-11 Tim Martin Paper cutting mechanisms
CN105136540B (en) * 2015-09-01 2018-01-23 常德金鹏印务有限公司 One kind packaging adaptive automatic sample device and its operating method
CN108277633B (en) * 2018-02-05 2019-12-13 杭州申联宝塑实业有限公司 cloth pressing and cutting machine for producing geotextile
CN108789574A (en) * 2018-04-24 2018-11-13 句容沣润塑料制品有限公司 A kind of plastic plate cutter device
CN109202988B (en) * 2018-10-15 2020-09-08 安徽华天宝中药饮片有限公司 Herbal pieces-automatic section device with function is collected to medicinal material piece
JP7147547B2 (en) * 2018-12-25 2022-10-05 株式会社リコー Recording medium cutting device, liquid ejection device
CN110877367A (en) * 2019-11-22 2020-03-13 徐州梦源达新型建材有限公司 Drilling equipment is used in building material processing

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JP2007125689A (en) 2007-05-24
JP5189755B2 (en) 2013-04-24
US20070095182A1 (en) 2007-05-03
US8316746B2 (en) 2012-11-27
EP1782930A1 (en) 2007-05-09

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