EP2764963A2 - Device for cutting products on three sides - Google Patents

Device for cutting products on three sides Download PDF

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Publication number
EP2764963A2
EP2764963A2 EP14152045.2A EP14152045A EP2764963A2 EP 2764963 A2 EP2764963 A2 EP 2764963A2 EP 14152045 A EP14152045 A EP 14152045A EP 2764963 A2 EP2764963 A2 EP 2764963A2
Authority
EP
European Patent Office
Prior art keywords
drive
movement
product
lifting
motor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP14152045.2A
Other languages
German (de)
French (fr)
Other versions
EP2764963A3 (en
EP2764963B1 (en
Inventor
Wolfgang Dr. Matthes
Andreas Steinert
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
Heidelberger Druckmaschinen 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 Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP2764963A2 publication Critical patent/EP2764963A2/en
Publication of EP2764963A3 publication Critical patent/EP2764963A3/en
Application granted granted Critical
Publication of EP2764963B1 publication Critical patent/EP2764963B1/en
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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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/08—Means for actuating the cutting member to effect the cut
    • 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
    • B26D7/015—Means for holding or positioning work for sheet material or piles of sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/06—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form
    • B26D7/0608—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form by pushers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/04—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with transverse cutters or perforators
    • B65H35/06—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with transverse cutters or perforators from or with blade, e.g. shear-blade, cutters or perforators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H9/00—Registering, e.g. orientating, articles; Devices therefor
    • B65H9/10—Pusher and like movable registers; Pusher or gripper devices which move articles into registered position
    • B65H9/101—Pusher and like movable registers; Pusher or gripper devices which move articles into registered position acting on the edge of the article
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D2007/0012—Details, accessories or auxiliary or special operations not otherwise provided for
    • B26D2007/0081—Cutting on three sides, e.g. trilateral trimming
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/19—Specific article or web
    • B65H2701/1932—Signatures, folded printed matter, newspapers or parts thereof and books

Definitions

  • the invention relates to a device for three-sided trimming of products, in particular brochures according to the preamble of claim 1.
  • a trimmer is known in which the movement of the side kicker is decoupled from the movement sequence of the cutting movement.
  • the side pusher is assigned a separate drive, which can be controlled via a control independently of the lifting movement of the knife lifting device.
  • such a device for three-sided trimming comprises means for initiating and / or terminating the thrust movement of the alignment device, such that the time of initiation and / or the impact duration of the thrust movement within the cycle time of the device is independent of the lifting movement of the lifting device.
  • This decoupling of the cutting movement from the impact movement makes it possible to make better use of the time available overall for the three-sided trimming of the product.
  • the device comprises a controller which controls the drive of the alignment device independently of the lifting movement of the lifting device.
  • the device comprises a controller which controls the drive of the alignment device independently of the lifting movement of the lifting device.
  • the device comprises a controller which controls the drive of the alignment device independently of the lifting movement of the lifting device.
  • product-dependent optimized electronic control curves can be stored in the control for driving the alignment device.
  • the alignment device in this case comprises at least one bumper, which is mounted on a holder and guide rods in the knife block.
  • the knife block also has a threaded spindle with a spindle nut.
  • the holder is connected to the spindle nut. By rotating the threaded spindle via the drive, the spindle nut with the holder and the bar is moved axially.
  • the alignment device can be driven directly by a linear motor.
  • the spindle and the spindle nut would be omitted.
  • the holder would be mounted directly on the so-called rotor of the linear motor.
  • the drive would have a motor and a toothed belt drive or a chain drive or a spur gear.
  • the drive would have a motor which is arranged in direct axial extension of the threaded spindle.
  • FIG Fig. 1 A representative example of a device for three-sided trimming of products is shown in FIG Fig. 1 shown.
  • a first drive motor 1 realizes the movement of the knife lifting device 2, to which the blades 3 are fastened.
  • the product running direction is indicated by arrows.
  • a second drive motor 4 drives the conveyor belts 7, 8 of the transport device 9 via a first and second drive shaft 5, 6.
  • control units 10, 11 are provided which can communicate with each other by means of a connection for exchanging data and / or control signals 12.
  • the connection 12 can also lead to a machine control unit and to the control 42 of the alignment device 30.
  • the transport device is shown for itself.
  • the drive motor 4 drives by means of a mechanical transmission 14, the drive shafts 5 and 6 and the conveyor belts 7, 8 of the transport device.
  • the control unit 11 and the connection for exchanging data and / or control signals 12 can be seen.
  • the products are, from a further, not shown transport system coming out of the delivery of a stapler, braked at the leading edge stops 15.
  • the leading edge stops 15 are only provided in a first cutting position for leading edge trimming.
  • the transport of the product 16 to the second cutting position by the transport device 9 takes place without further alignment.
  • FIG. 3 schematically shows the inventive alignment device 30 for the head side of the products 16th
  • the bumper 31 of the alignment device 30 is mounted on the holder 51 and the guide rods 52 in the knife block 37.
  • the threaded spindle 53 with the Spindle nut 54 is also mounted in the knife block 37.
  • the holder 51 is connected to the spindle nut 54, so that upon rotation of the threaded spindle 53, the spindle nut 54 with the holder 51 and the bumper 31 is moved axially. This movement aligns the product 16.
  • the threaded spindle 53 is driven by means of a drive 35, for example consisting of a toothed belt drive 56a, 56b, 56c, a motor 55, preferably a servomotor or a stepping motor.
  • the movement of the device is as follows: During the format adjustment of the machine, the machine rotates a certain number of revolutions during the format setting of the machine and thus brings the bumper 31 via the spindle drive into a specific position corresponding to the required head trim , Starting from this position, the oscillating movement of the bumper 31 is achieved in the machine cycle by left-right rotation of the motor and thus the lifting movement for the alignment of the product 16th Since the motor is controlled by the machine control, it is possible to influence it from the outside during the machine run and also to separate the side kicker movement from the knife movement. By depositing different motion profiles for the engine in the machine control, it is possible the movement of the alignment device z. B. adapt to different machine speeds.
  • the leading edge trimming of a product 16 is performed simultaneously in a first cutting position and in a second cutting position of the head orohnberough a second product 16.
  • the other components of the device according to the invention 50 thus sometimes transport the second product 16 out of the device 50 from the second cutting position, transport the first product 16 from the first cutting position to the second cutting position and bring a new product 16 into the first cutting position.
  • the transport device 9 must bring the product up to the leading edge stops 15 and also ensure a lateral alignment of the product before trimming.
  • the conveyor belts 7, 8 of the conveyor 9 are also during the lateral Operated thrust movement by the alignment device 30 so that the product 16 is driven against the leading edge stops 15 until it is completely aligned.
  • the machine cycle of the device 50 is increased, it is not enough to increase all other movements of the device to the same extent. Rather, the transport time of the product 16 within the device 50 must not fall below a minimum transport time, since otherwise the gentle and safe transport of the product 16 can not be guaranteed.
  • the moment of the beginning of the pushing movement and its duration can now be adjusted in such a way that the transport of the product 16 remains the same amount of time within the device 50.
  • the device has been described above in particular in connection with the three-sided trimming of brochures which are produced in a saddle stitcher. However, it is readily conceivable to use the device for three-sided trimming of other products. In addition, it is conceivable to provide a corresponding device which makes only one or two cuts on a product, or correspondingly more than three, such as the so-called trio cut.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Cutting Devices (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

The apparatus (50) has a controller for initiating and/or ending pushing movement of an alignment device such that the timing of initiating and or burst duration of the pushing movement within cycle time is independent of lifting movement of a blade lifting device (2). The alignment device includes an impact bar, which is mounted on a holder and guide rods in a knife block. The knife block includes a threaded spindle with a spindle nut. The holder is connected to the spindle nut. The threaded spindle is connected with a drive, which includes a motor and a toothed belt drive.

Description

Die Erfindung betrifft eine Vorrichtung zum dreiseitigen Beschnitt von Produkten, insbesondere Broschuren gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a device for three-sided trimming of products, in particular brochures according to the preamble of claim 1.

Bei der Herstellung von Broschuren werden an Sammelhefters die zusammengetragenen und gehefteten Produkte in einer Vorrichtung zum dreiseitigen Beschnitt, etwa einem Trimmer geschnitten. Dies erfolgt in den Schneidstationen für den Vorderschnitt und den Kopfbeschnitt bzw. Fußbeschnitt durch ein bewegtes Obermesser gegen ein feststehendes Untermesser. Der Beschnitt der Broschur stellt dabei einen besonders wichtigen Schritt dar, da hierdurch die Falzbogen seitlich geöffnet werden und das äußere Erscheinungsbild der Broschur maßgeblich beeinflusst wird. Dazu ist es wichtig, dass die Broschuren positionsgenau geschnitten werden. Die korrekte Positionierung der Broschüren wird zum einen durch die Trimmerzuführung gewährleistet. Zum anderen wird das Produkt vor dem Beschnitt gegen Vorderkantenanschläge transportiert und seitlich ausgerichtet, um die Abschnittsbreite für den Kopfbeschnitt bzw. Fußbeschnitt exakt einzustellen. Aus dem Stand der Technik ist es bekannt, dass der Mechanismus für die seitliche Ausrichtung (Seitenstoßer) dabei durch die Hubbewegung des Obermesserträgers angetrieben wird und somit direkt an den Bewegungsablauf der Schneidbewegung gekoppelt ist. Ein derartiger Trimmer ist bekannt.In booklet making, saddle stitchers cut the collected and stapled products in a three-sided trimming device such as a trimmer. This is done in the cutting stations for the front cut and the Kopfbeschnitt or Fußbeschnitt by a moving upper blade against a fixed lower blade. The trimming of the brochure is a particularly important step, as it opens the folded sheets sideways and significantly influences the appearance of the brochure. For this it is important that the brochures are cut to the exact position. Correct positioning of the booklets is ensured by the trimmer feeder. On the other hand, the product is transported against the leading edge stops before trimming and aligned laterally to precisely set the section width for the head trim or Fußbeschnitt. It is known from the prior art that the mechanism for the lateral alignment (side pushers) is driven by the lifting movement of the upper knife carrier and is thus directly coupled to the movement sequence of the cutting movement. Such a trimmer is known.

Im Hinblick auf eine Optimierung der Bewegungsabläufe im Trimmer ist eine solche Vorrichtung nachteilig. Es wäre wünschenswert, den Seitenstoßer zu einem früheren Zeitpunkt vom Produkt weg zu bewegen, damit das Produkt bei Transportbeginn frei liegt und nicht durch den Seitenstoßer behindert wird.With regard to an optimization of the motion sequences in the trimmer, such a device is disadvantageous. It would be desirable to move the side pusher away from the product at an earlier time so that the product will be exposed at the start of transport and not obstructed by the side pusher.

Aus der US 2007/0028456 A1 ist ein Trimmer bekannt bei dem die Bewegung des Seitenstoßers von dem Bewegungsablauf der Schneidebewegung entkoppelt ist. Dem Seitenstoßer ist ein separater Antrieb zugeordnet, der über eine Steuerung unabhängig von der Hubbewegung der Messerhubeinrichtung ansteuerbar ist.From the US 2007/0028456 A1 a trimmer is known in which the movement of the side kicker is decoupled from the movement sequence of the cutting movement. The side pusher is assigned a separate drive, which can be controlled via a control independently of the lifting movement of the knife lifting device.

Wie bereits erwähnt, ist es weiterhin notwendig den Seitenstoßer auf die genaue Abschnittsbereite für den Kopfbeschnitt bzw. Fußbeschnitt exakt einzustellen. Diese Einstellung wird bei den bekannten Sammelheftern durch Verstellmechanismen bewerkstelligt, die nur im Stillstand der Maschine und nur bei geöffnetem Schutz zu bedienen sind. Hierzu ist es aus der EP 1 837 135 A1 bekannt den Seitenschieber von außerhalb der Verkleidung zugänglicher Betätigungsorgane zu verstellen. Bei der bekannten Vorrichtung ist es nachteilig, dass die Hubbewegung des Seitenstoßers durch die Messerbewegung eingeleitet wird und somit zeitlich an die Messerbewegung gekoppelt ist.As already mentioned, it is furthermore necessary to precisely adjust the side pusher to the exact section width for the head trim or foot trimming. This adjustment is accomplished in the known saddle stitchers by adjusting mechanisms that are only to operate at standstill of the machine and only with open protection. For this it is from the EP 1 837 135 A1 known to adjust the sideshifter from outside the panel accessible actuators. In the known device, it is disadvantageous that the lifting movement of the side impactor is initiated by the blade movement and is thus coupled in time to the blade movement.

Es ist deshalb Aufgabe der vorliegenden Erfindung eine Vorrichtung zu schaffen, die über einen von außen gesteuerten Antrieb sowohl die Hubbewegung des Seitenstoßers unabhängig von der Messerbewegung realisiert, als auch eine Verstellung des Seitenstoßeres bei geschlossenem Schutz während des Maschinenlaufs ermöglicht.It is therefore an object of the present invention to provide a device which realizes both the lifting movement of the side kicker regardless of the blade movement via an externally controlled drive, as well as an adjustment of the Seitenstoßeres with closed protection during machine operation.

Diese Aufgabe wird mit einer Vorrichtung zum dreiseitigen Beschnitt mit den kennzeichnenden Merkmalen von Anspruch 1 gelöst. Weitere Merkmale ergeben sich aus den Unteransprüchen.This object is achieved with a device for three-sided trimming with the characterizing features of claim 1. Further features emerge from the subclaims.

Dementsprechend umfasst eine derartige Vorrichtung zum dreiseitigen Beschnitt Mittel zum Einleiten und / oder Beenden der Stoßbewegung der Ausrichtungseinrichtung, derart, dass der Zeitpunkt des Einleitens und / oder die Stoßdauer der Stoßbewegung innerhalb der Taktdauer der Vorrichtung unabhängig von der Hubbewegung der Hubeinrichtung ist. Durch diese Entkopplung der Schneidbewegung von der Stoßbewegung kann die insgesamt für den dreiseitigen Beschnitt des Produktes zur Verfügung stehende Zeit besser genutzt werden. Zudem ist eine Anpassung beispielsweise der Stoßdauer auf unterschiedliche Produkteigenschaften, wie dessen Gewicht oder Abmessungen, möglich.Accordingly, such a device for three-sided trimming comprises means for initiating and / or terminating the thrust movement of the alignment device, such that the time of initiation and / or the impact duration of the thrust movement within the cycle time of the device is independent of the lifting movement of the lifting device. This decoupling of the cutting movement from the impact movement makes it possible to make better use of the time available overall for the three-sided trimming of the product. In addition, an adaptation, for example, the duration of impact on different product properties, such as its weight or dimensions possible.

In einer vorteilhaften Ausgestaltung der erfinderischen Vorrichtung ist der Ausrichtungseinrichtung ein separater Antrieb zugeordnet, wobei vorteilhafterweise die Vorrichtung eine Steuerung umfasst, die den Antrieb der Ausrichtungseinrichtung unabhängig von der der Hubbewegung der Hubeinrichtung ansteuert. Dadurch entfällt das aufwendige Ableiten der Stoßbewegung von der Hubbewegung der Hubeinrichtung, etwa durch ein mechanisches Kurvengetriebe. Außerdem können in der Steuerung für den Antrieb der Ausrichtungseinrichtung produktabhängig optimierte elektronische Steuerungskurven hinterlegt werden. Die Ausrichtungseinrichtung umfasst hierbei mindestens eine Stoßleiste, die über einen Halter und Führungsstangen im Messerblock gelagert ist. Der Messerblock weist weiterhin eine Gewindespindel mit einer Spindelmutter auf. Der Halter ist mit der Spindelmutter verbunden. Durch Drehung der Gewindespindel über den Antrieb wird die Spindelmutter mit dem Halter und der Leiste axial bewegt. Durch diese Anordnung ist eine vorteilhafte, stufenlose Einstellung des Pendelhubs unabhängig von der Messerbewegung möglich.In an advantageous embodiment of the inventive device of the alignment device is assigned a separate drive, wherein advantageously the device comprises a controller which controls the drive of the alignment device independently of the lifting movement of the lifting device. This eliminates that consuming derivation of the thrust movement of the lifting movement of the lifting device, such as a mechanical cam gear. In addition, product-dependent optimized electronic control curves can be stored in the control for driving the alignment device. The alignment device in this case comprises at least one bumper, which is mounted on a holder and guide rods in the knife block. The knife block also has a threaded spindle with a spindle nut. The holder is connected to the spindle nut. By rotating the threaded spindle via the drive, the spindle nut with the holder and the bar is moved axially. By this arrangement, an advantageous, continuous adjustment of the pendulum stroke is independent of the blade movement possible.

In einer alternativen Ausführung kann die Ausrichtungseinrichtung durch einen Linearmotor direkt angetrieben werden. Bei dieser Variante würden die Spindel und die Spindelmutter entfallen. Der Halter wäre direkt auf dem sogenannten Läufer des Linearmotors montiert.In an alternative embodiment, the alignment device can be driven directly by a linear motor. In this variant, the spindle and the spindle nut would be omitted. The holder would be mounted directly on the so-called rotor of the linear motor.

In weiteren vorteilhaften Ausgestaltungen würde der Antrieb einen Motor und einen Zahnriementrieb oder einen Kettentrieb oder eine Stirnradstufe aufweisen.In further advantageous embodiments, the drive would have a motor and a toothed belt drive or a chain drive or a spur gear.

In einer weiteren vorteilhaften Ausgestaltung würde der Antrieb einen Motor aufweisen, der in direkter axialer Verlängerung der Gewindespindel angeordnet ist.In a further advantageous embodiment, the drive would have a motor which is arranged in direct axial extension of the threaded spindle.

Bevorzugte Ausführungsformen der erfindungsgemäßen Vorrichtung werden im Folgenden unter Bezugnahme auf die Zeichnungen im Einzelnen näher beschrieben.Preferred embodiments of the device according to the invention are described in detail below with reference to the drawings.

Es zeigen in schematischer Darstellung

Fig. 1
eine Ansicht der Vorrichtung zum Randbeschneiden von Produkten,
Fig. 2
eine detaillierte Ansicht der Transporteinrichtung und
Fig. 3
eine detaillierte Ansicht der Ausrichtungseinrichtung
It show in a schematic representation
Fig. 1
a view of the device for edge trimming of products,
Fig. 2
a detailed view of the transport device and
Fig. 3
a detailed view of the alignment device

Ein repräsentatives Beispiel für eine Vorrichtung zum dreiseitigen Beschnitt von Produkten wird in Fig. 1 gezeigt. Ein erster Antriebsmotor 1 realisiert die Bewegung der Messerhubeinrichtung 2, an welcher die Messer 3 befestigt sind. Die Produktlaufrichtung ist durch Pfeile gekennzeichnet. Ein zweiter Antriebsmotor 4 treibt über eine erste und zweite Antriebswelle 5, 6 die Transportbänder 7, 8 der Transporteinrichtung 9 an. Für beide Antriebsmotoren 1, 4, sind Steuereinheiten 10, 11 vorgesehen, welche mittels einer Verbindung zum Austausch von Daten und / oder Steuersignalen 12 miteinander kommunizieren können. Weiterhin kann die Verbindung 12 auch zu einer Maschinensteuereinheit führen sowie zur Steuerung 42 der Ausrichtungseinrichtung 30.A representative example of a device for three-sided trimming of products is shown in FIG Fig. 1 shown. A first drive motor 1 realizes the movement of the knife lifting device 2, to which the blades 3 are fastened. The product running direction is indicated by arrows. A second drive motor 4 drives the conveyor belts 7, 8 of the transport device 9 via a first and second drive shaft 5, 6. For both drive motors 1, 4, control units 10, 11 are provided which can communicate with each other by means of a connection for exchanging data and / or control signals 12. Furthermore, the connection 12 can also lead to a machine control unit and to the control 42 of the alignment device 30.

In der Fig. 2 ist die Transporteinrichtung für sich dargestellt. Der Antriebsmotor 4 treibt vermittels eines mechanischen Getriebes 14 die Antriebswellen 5 und 6 und die Transportbänder 7, 8 der Transporteinrichtung an. Weiterhin ist die Steuereinheit 11 und die Verbindung zum Austausch von Daten und / oder Steuersignalen 12 zu sehen. Die Produkte werden, von einem weiteren, nicht gezeigten Transportsystem aus der Auslage einer Heftmaschine kommend, an den Vorderkantenanschlägen 15 abgebremst. Durch die elektronische Steuerung vermittels der Steuereinheit 11 ist es möglich, das Produkt 16 auch bei hohen Geschwindigkeiten sanft an die Vorderkantenanschläge 15 heranzuführen. Typischerweise sind die Vorderkantenanschläge 15 nur in einer ersten Schneidposition für den Vorderkantenbeschnitt vorgesehen. Der Transport des Produktes 16 zur zweiten Schneidposition durch die Transporteinrichtung 9 erfolgt ohne weitere Ausrichtung.In the Fig. 2 the transport device is shown for itself. The drive motor 4 drives by means of a mechanical transmission 14, the drive shafts 5 and 6 and the conveyor belts 7, 8 of the transport device. Furthermore, the control unit 11 and the connection for exchanging data and / or control signals 12 can be seen. The products are, from a further, not shown transport system coming out of the delivery of a stapler, braked at the leading edge stops 15. By the electronic control by means of the control unit 11, it is possible to gently guide the product 16 to the leading edge stops 15 even at high speeds. Typically, the leading edge stops 15 are only provided in a first cutting position for leading edge trimming. The transport of the product 16 to the second cutting position by the transport device 9 takes place without further alignment.

In Fig. 3 ist die seitliche Ausrichtungseinrichtung 30 dargestellt. Die Ausrichtung des Produkts 16 erfolgt durch die Stoßleiste 31, die das Produkt 16 seitlich erfasst. Je nach Ausführungsform kann es vorgesehen sein, lediglich auf einer Seite des Produktes 16 eine erfindungsgemäße Ausrichtungseinrichtung 30 vorzusehen. Eine bevorzugte Ausführungsform weist aber beidseitig des Produktes 16 jeweils eine Ausrichtungseinrichtung 30 auf. Diese können getrennt oder gemeinsam durch eine Steuerung 42 angesteuert werden. Figur 3 zeigt schematisch die erfindungsgemäße Ausrichtungseinrichtung 30 für die Kopfseite der Produkte 16.
Die Stoßleiste 31 der Ausrichtungseinrichtung 30 ist über den Halter 51 und den Führungsstangen 52 im Messerblock 37 gelagert. Die Gewindespindel 53 mit der Spindelmutter 54 ist ebenfalls im Messerblock 37 gelagert. Der Halter 51 ist mit der Spindelmutter 54 verbunden, so dass bei Drehung der Gewindespindel 53 die Spindelmutter 54 mit dem Halter 51 und der Stoßleiste 31 axial bewegt wird. Durch diese Bewegung wird das Produkt 16 ausgerichtet.
Die Gewindespindel 53 wird mittels eines Antriebs 35 beispielsweise bestehend aus einem Zahnriementrieb 56a, 56b, 56c, einem Motor 55, vorzugsweise einem Servomotor oder einem Schrittmotor, angetrieben.
Der Bewegungsablauf der Vorrichtung ist wie folgt: Durch die Maschinensteuerung dreht der Motor während der Formateinstellung der Maschine - von einer festgelegten Nullposition aus - eine bestimmte Anzahl von Umdrehungen und bringt damit über den Spindeltrieb die Stoßleiste 31 in eine bestimmte Position, die dem erforderlichen Kopfbeschnitt entspricht. Ausgehend von dieser Position wird im Maschinenlauf durch Links-Rechtsdrehung des Motors die oszillierende Bewegung der Stoßleiste 31 erreicht und damit die Hubbewegung zur Ausrichtung des Produktes 16.
Da der Motor über die Maschinensteuerung geregelt wird, ist eine Beeinflussung von außen während des Maschinenlaufs möglich und ebenfalls eine Trennung der Seitenstoßerbewegung von der Messerbewegung. Durch die Hinterlegung unterschiedlicher Bewegungsprofile für den Motor in der Maschinensteuerung ist es möglich, die Bewegung der Ausrichtungseinrichtung z. B. an unterschiedliche Maschinengeschwindigkeiten anzupassen.In Fig. 3 the lateral alignment device 30 is shown. The orientation of the product 16 is performed by the bumper 31, which detects the product 16 side. Depending on the embodiment, it may be provided to provide an alignment device 30 according to the invention on only one side of the product 16. However, a preferred embodiment has an alignment device 30 on both sides of the product 16. These can be controlled separately or jointly by a controller 42. FIG. 3 schematically shows the inventive alignment device 30 for the head side of the products 16th
The bumper 31 of the alignment device 30 is mounted on the holder 51 and the guide rods 52 in the knife block 37. The threaded spindle 53 with the Spindle nut 54 is also mounted in the knife block 37. The holder 51 is connected to the spindle nut 54, so that upon rotation of the threaded spindle 53, the spindle nut 54 with the holder 51 and the bumper 31 is moved axially. This movement aligns the product 16.
The threaded spindle 53 is driven by means of a drive 35, for example consisting of a toothed belt drive 56a, 56b, 56c, a motor 55, preferably a servomotor or a stepping motor.
The movement of the device is as follows: During the format adjustment of the machine, the machine rotates a certain number of revolutions during the format setting of the machine and thus brings the bumper 31 via the spindle drive into a specific position corresponding to the required head trim , Starting from this position, the oscillating movement of the bumper 31 is achieved in the machine cycle by left-right rotation of the motor and thus the lifting movement for the alignment of the product 16th
Since the motor is controlled by the machine control, it is possible to influence it from the outside during the machine run and also to separate the side kicker movement from the knife movement. By depositing different motion profiles for the engine in the machine control, it is possible the movement of the alignment device z. B. adapt to different machine speeds.

Im laufenden Betrieb der erfindungsgemäßen Vorrichtung 50 wird gleichzeitig in einer ersten Schneidposition der Vorderkantenbeschnitt eines Produktes 16 durchgeführt sowie in einer zweiten Schneidposition der Kopf- bzw. Fußbeschnitt eines zweiten Produktes 16. Innerhalb des Taktes der Hubbewegung der Messerhubeinrichtung 2 müssen die übrigen Komponenten der erfindungsgemäßen Vorrichtung 50 also mitunter das zweite Produkt 16, aus der zweiten Schneidposition aus der Vorrichtung 50 heraustransportieren, das erste Produkt 16 aus der ersten Schneidposition in die zweite Schneidposition transportieren und ein neues Produkt 16 in die erste Schneidposition bringen. Dazu muss die Transporteinrichtung 9 das Produkt bis zu den Vorderkantenanschlägen 15 bringen und ebenfalls eine seitliche Ausrichtung des Produktes vor dem Beschnitt gewährleisten. Dazu werden die Transportbänder 7, 8 der Transporteinrichtung 9 auch während der seitlichen Stoßbewegung durch die Ausrichtungseinrichtung 30 betrieben, so dass das Produkt 16 gegen die Vorderkantenanschläge 15 getrieben wird bis es vollständig ausgerichtet ist. Wird nun der Maschinentakt der Vorrichtung 50 erhöht, ist es nicht damit getan, alle übrigen Bewegungen der Vorrichtung in gleichem Maße zu erhöhen. Vielmehr darf die Transportdauer des Produkts 16 innerhalb der Vorrichtung 50 eine Mindesttransportdauer nicht unterschreiten, da sonst der schonende und sichere Transport des Produkts 16 nicht gewährleistet werden kann. Um dennoch die Vorrichtung 50 mit höheren Produktionsgeschwindigkeiten und damit mit einem kürzeren Takt betreiben zu können, kann nun dank des gesonderten Antriebs der Stoßbewegung und der zugeordneten Ausrichtungssteuerung 42 der Zeitpunkt des Beginns der Stoßbewegung sowie dessen Dauer derart angepasst werden, dass für den Transport des Produkts 16 innerhalb der Vorrichtung 50 gleich viel Zeit bleibt.During operation of the device 50 according to the invention the leading edge trimming of a product 16 is performed simultaneously in a first cutting position and in a second cutting position of the head or Fußbeschnitt a second product 16. Within the cycle of the lifting movement of the knife lifting device 2, the other components of the device according to the invention 50 thus sometimes transport the second product 16 out of the device 50 from the second cutting position, transport the first product 16 from the first cutting position to the second cutting position and bring a new product 16 into the first cutting position. For this purpose, the transport device 9 must bring the product up to the leading edge stops 15 and also ensure a lateral alignment of the product before trimming. For this, the conveyor belts 7, 8 of the conveyor 9 are also during the lateral Operated thrust movement by the alignment device 30 so that the product 16 is driven against the leading edge stops 15 until it is completely aligned. Now, if the machine cycle of the device 50 is increased, it is not enough to increase all other movements of the device to the same extent. Rather, the transport time of the product 16 within the device 50 must not fall below a minimum transport time, since otherwise the gentle and safe transport of the product 16 can not be guaranteed. Nevertheless, in order to be able to operate the device 50 with higher production speeds and thus with a shorter cycle, thanks to the separate drive of the pushing movement and the associated alignment control 42, the moment of the beginning of the pushing movement and its duration can now be adjusted in such a way that the transport of the product 16 remains the same amount of time within the device 50.

Bei der erfindungsgemäßen Vorrichtung ist es weiterhin möglich den Pendelhub stufenlos auf unterschiedliche Formate während des laufenden Maschinenbetriebs einzustellen.In the device according to the invention, it is also possible to continuously adjust the pendulum stroke to different formats during the running machine operation.

Die Vorrichtung wurde vorgehend insbesondere im Zusammenhang mit dem dreiseitigen Beschnitt von Broschuren, die in einem Sammelhefter erzeugt werden, beschrieben. Es ist aber ohne weiteres denkbar, die Vorrichtung auch zum dreiseitigen Beschneiden von anderen Produkten zu verwenden. Außerdem ist es denkbar, eine entsprechende Vorrichtung vorzusehen, die lediglich eine oder zwei Beschnitte an einem Produkt vornimmt, oder entsprechend mehr als drei, etwa beim so genannten Trioschnitt. Bezugszeichenliste 1 Antriebsmotor für Messer 2 Messerhubeinrichtung 3 Messer 4 Antriebsmotor für Transporteinrichtung 5 Antriebswelle 6 Antriebswelle 7 Obere Transportbänder 8 Untere Transportbänder 9 Transporteinrichtung 10 Steuereinheit 11 Steuereinheit 12 Verbindung zum Austausch von Daten und / oder Steuersignalen 14 mechanisches Getriebe 15 Vorderkantenanschlag 16 Produkt 30 seitliche Ausrichtungseinrichtung 31 Stoßleiste 35 Antrieb 37 Messerblock 42 Ausrichtungssteuerung 50 Vorrichtung 51 Halter 52 Führungsstange 53 Gewindespindel 54 Spindelmutter 55 Motor 56a

Figure imgb0001
Zahnriementrieb 56b 56c The device has been described above in particular in connection with the three-sided trimming of brochures which are produced in a saddle stitcher. However, it is readily conceivable to use the device for three-sided trimming of other products. In addition, it is conceivable to provide a corresponding device which makes only one or two cuts on a product, or correspondingly more than three, such as the so-called trio cut. <B> LIST OF REFERENCES </ b> 1 Drive motor for knives 2 Knife lifting device 3 knife 4 Drive motor for transport device 5 drive shaft 6 drive shaft 7 Upper conveyor belts 8th Lower conveyor belts 9 transport means 10 control unit 11 control unit 12 Connection for exchanging data and / or control signals 14 mechanical transmission 15 Leading-edge stop 16 product 30 lateral alignment device 31 buffer strip 35 drive 37 knife block 42 alignment control 50 contraption 51 holder 52 guide rod 53 screw 54 spindle nut 55 engine 56a
Figure imgb0001
toothed belt drive 56b 56c

Claims (5)

Vorrichtung zum dreiseitigen Beschnitt von Produkten (16) mit einer Messerhubeinrichtung (2), die in einer Hubbewegung betreibbar ausgestaltet ist, wobei die Hubbewegung einen Maschinentakt der Vorrichtung (50) bestimmt, wobei an der Hubeinrichtung (2) wenigstens Messer (3) zum Kopfbeschnitt, Fußbeschnitt und Vorderkantenbeschnitt der Produkte (16) anbringbar sind, und wobei die Vorrichtung eine wenigstens einseitig bewegliche seitliche Ausrichtungseinrichtung (30) zur Ausführung einer Stoßbewegung gegen das Produkt (16) aufweist, vermittels der das Produkt (16) in eine Schneidposition bringbar ist, wobei die Vorrichtung Mittel (35, 42) zum Einleiten und / oder Beenden der Stoßbewegung der Ausrichtungseinrichtung (30) umfasst, derart, dass der Zeitpunkt des Einleitens und / oder die Stoßdauer der Stoßbewegung innerhalb der Taktdauer der Vorrichtung (50) unabhängig von der Hubbewegung der Messerhubeinrichtung (2) ist, wobei die Ausrichtungseinrichtung (30) mindestens eine Stoßleiste (31) umfasst, die über einen Halter (51) und Führungsstangen (52) im Messerblock (37) gelagert ist,
dadurch gekennzeichnet,
dass der Messerblock (37) weiterhin eine Gewindespindel (53) mit einer Spindelmutter (54) aufweist und der Halter (51) mit der Spindelmutter (54) verbunden ist und dass die Gewindespindel (53) mit einem Antrieb (35) verbunden ist.Device for three-sided trimming of products (16) with a knife lifting device (2), which is designed to operate in a lifting movement, wherein the lifting movement determines a machine cycle of the device (50), wherein at least knives (3) for trimming the head on the lifting device (2) Foot cut and leading edge trimming of the products (16) are attachable, and wherein the device comprises at least one side movable lateral alignment means (30) for performing an impact movement against the product (16) by means of which the product (16) can be brought into a cutting position, the device comprising means (35, 42) for initiating and / or terminating the thrust movement of the alignment device (30), such that the timing of the initiation and / or burst duration of the impact movement within the cycle time of the device (50) is independent of the stroke movement the knife lifting device (2), wherein the alignment device (30) at least one Stoßle Is (31) which is mounted on a holder (51) and guide rods (52) in the knife block (37),
characterized,
in that the knife block (37) furthermore has a threaded spindle (53) with a spindle nut (54) and the holder (51) is connected to the spindle nut (54) and that the threaded spindle (53) is connected to a drive (35). Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet,
dass der Antrieb (35) einen Motor (55) und einen Zahnriemenantrieb (56a, 56b, 56c) aufweist.Device according to claim 1,
characterized,
in that the drive (35) has a motor (55) and a toothed belt drive (56a, 56b, 56c). Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet,
dass der Antrieb (35) einen Motor (55) und einen Kettenantrieb oder eine Stirnradstufe aufweist.Device according to claim 1,
characterized,
in that the drive (35) has a motor (55) and a chain drive or a spur gear stage. Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet,
dass der Antrieb (35) als Motor (55) ausgebildet ist, der in direkter axialer Verlängerung der Gewindespindel (53) angeordnet ist.Device according to claim 1,
characterized,
in that the drive (35) is designed as a motor (55) which is arranged in direct axial extension of the threaded spindle (53). Vorrichtung nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
dass der Antrieb (35) mit einer Steuerung (42) verbunden ist.Device according to one of the preceding claims,
characterized,
in that the drive (35) is connected to a controller (42).
EP14152045.2A 2013-02-11 2014-01-22 Device for cutting products on three sides Active EP2764963B1 (en)

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EP1837135A1 (en) 2006-03-21 2007-09-26 Hohner Maschinenbau GmbH Cutting device for a stack of printed sheets

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CN111958675A (en) * 2020-08-28 2020-11-20 李君� Book edge cutting machine

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CN103978512A (en) 2014-08-13
EP2764963A3 (en) 2015-03-04
DE102013002410A1 (en) 2014-08-14
EP2764963B1 (en) 2020-04-01
CN103978512B (en) 2018-05-22

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