EP2641709A1 - Cutting device - Google Patents

Cutting device Download PDF

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Publication number
EP2641709A1
EP2641709A1 EP20130157345 EP13157345A EP2641709A1 EP 2641709 A1 EP2641709 A1 EP 2641709A1 EP 20130157345 EP20130157345 EP 20130157345 EP 13157345 A EP13157345 A EP 13157345A EP 2641709 A1 EP2641709 A1 EP 2641709A1
Authority
EP
European Patent Office
Prior art keywords
head
drives
foot
transport
drive
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
EP20130157345
Other languages
German (de)
French (fr)
Other versions
EP2641709B1 (en
Inventor
Wolfgang Matthes Dr.
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 EP2641709A1 publication Critical patent/EP2641709A1/en
Application granted granted Critical
Publication of EP2641709B1 publication Critical patent/EP2641709B1/en
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Classifications

    • 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
    • B65H35/0006—Article or web delivery apparatus incorporating cutting or line-perforating devices
    • B65H35/0073—Details
    • B65H35/008—Arrangements or adaptations of cutting devices
    • B65H35/0086—Arrangements or adaptations of cutting devices using movable cutting elements
    • 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
    • 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
    • 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
    • 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
    • B26D7/27—Means for performing other operations combined with cutting
    • B26D7/32—Means for performing other operations combined with cutting for conveying or stacking cut product
    • B26D2007/322—Means for performing other operations combined with cutting for conveying or stacking cut product the cut products being sheets, e.g. sheets of paper
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/647—With means to convey work relative to tool station

Definitions

  • the invention relates to a device and a method for simultaneous, three-sided trimming of products according to the preamble of claim 1.
  • staplers are used to 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 leading edge trim and the head orforberough by moving upper blade against fixed lower blade or cutting strips.
  • trimmer From the EP 1 152 310 A1 Such a trimmer is known.
  • the trimmer has a common upper blade bridge, which is operable by a servo motor in a lifting movement.
  • the upper knives for the front edge trim and for the head andmodeberough are attached.
  • the leading edge trimming takes place here in a first cutting station and the head and complicatberough in a second cutting station.
  • the trimmer has a transport device for the products.
  • the implementation of the three-sided trimming takes place here in individual steps.
  • the transport system transports the product to the first cutting station and brings the product to a precise stop position. Then the Vorderkantenbeites takes place.
  • the product is then transported by the transport system to a second cutting station and brought to a standstill with exact position. Then the head and statisticsberough done. Subsequently, the three-sided trimmed product is transported into the delivery.
  • That from the EP 1 152 310 A1 known transport system consists of head and foot side pairs of bands between which the product is clamped non-positively. The pairs of belts are driven by continuous drive shafts of an independent drive, such as a servo motor.
  • the distance between the two pairs of strips is also set to the respective product format.
  • displaceable positive connections provided between drive shafts and pulleys the conveyor belts.
  • the positive connections are designed as polygonal or splined shafts and are subject to high loads due to the alternating loads when accelerating and braking the products. This can make them unusable and cause costly repairs.
  • Even the conveyor belts themselves are subject to wear and must be replaced regularly. Changing the conveyor belts is associated with a high workload due to the continuous waves, which drive both pairs of bands.
  • an additional processing facility eg. B. a center cutting device, associated with a lot of work.
  • the object of the present invention is to provide a device which avoids the disadvantages of the prior art and ensures a safe transport of the products while simultaneously adapting the device to different product formats.
  • An inventive embodiment of a device for simultaneous three-sided trimming of products has a plurality of cutting stations. Furthermore, the device has a common upper knife bridge, which extends through the cutting stations. The upper knife bridge can be operated via a first drive in one stroke movement. At the upper knife bridge, at least the knives are attached to the leading edge trimming and the head and criticallyberough.
  • the products are transported by means of a transport device with head-side and foot-side conveyor belt pairs through the cutting stations of the device.
  • the drives for the lifting device and the transport device are each designed as independent, independent drives and connected to each other via control devices.
  • the drive for the head and foot conveyor belt pairs of the transport device each has independent, independent, position-controlled drives for each of the two conveyor belt pairs.
  • the drives of the head and foot side are acted upon by the control units or via a central machine control with motion profiles.
  • the motion profiles for the two pairs of bands can be the same or different. This makes it possible to control the transport of the product from cutting station to cutting station so that deliberately different transport paths are selected at the top and bottom of the product to achieve the desired cutting result.
  • a representative example of a cutting device 19 for edge trimming with separate drive devices according to the prior art is disclosed in US Pat Fig. 1A shown.
  • a first drive motor 1 realizes the movement of the upper blade bridge 2, to which the upper blades are attached.
  • the product running direction is indicated by arrows T.
  • a second drive motor 4 drives the belts 7, 8 of the transport system 9 via a first and second respectively continuous drive shaft 5, 6.
  • 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 central machine control unit 18.
  • the essential elements of the two movements implementing drives are in the Fig. 1B recognizable.
  • the first drive motor 1 realized by means of the toothed belt 15, the toothed belt pulley 16 and the gear 17, the vertical inharmonic oscillation movement of the upper blade bridge 2.
  • the upper blade 3 are pressed during the cutting operation against lower blade 13.
  • the second drive motor 4 drives the shafts 5, 6 by means of a mechanical transmission 14, so that the belts 7, 8 of the transport system are moved.
  • the arrows T indicate the product running direction.
  • FIG. 3 a cutting device 20 according to the invention is shown, wherein in FIG. 3 For better clarity, only the head-side transport device is shown and the control units and the connections have been omitted.
  • the cutting device 20 has an upper knife bridge 25, which is offset by a drive motor 21 in strokes.
  • the upper knife bridge 25 extends through all the cutting stations, in the present example, there are three: the station 26 for the leading edge trimming, the station 27 for the head and Briefberough and another processing station 28 for special punches or for Depanelization.
  • the station 26 for the leading edge trimming
  • the station 27 for the head and
  • Another processing station 28 for special punches or for Depanelization.
  • At the upper knife bridge corresponding upper blade 29, 30, 31, 32 are mounted, which are moved against lower blade 33 and thus perform the edge trim or special punches orsocitrennung the product 40.
  • the product 40 is transported by a transport device 34 through the individual cutting stations 26, 27, 28 of the device 20.
  • the transport device 34 has head-side 35, 36 and foot-side conveyor belt pairs 37, 38, between which the product 40 is clamped.
  • the head-side conveyor belt pairs 35, 36 are driven by an independent drive motor 23 and the foot-side conveyor belt pairs by an independent drive motor 22nd
  • the individual independent drives 21, 22, 23 are coupled to one another via their associated control units 47, 48, 49 via a connection 50 for the exchange of data and / or control signals. Furthermore, they may additionally be connected to the central machine controller 51. By way of this it is possible to act on the respective drives 22 and 23 with a defined movement profile and thus to accelerate and transport the product 40 individually on its head and foot.
  • FIG. 4 the essential components of the transport device 34 are shown.
  • the transport direction of the products 40, 40 ', 40 " is represented by the arrows T.
  • the transport device 34 extends through three cutting stations In the first station, the leading edge trimming is effected by means of the upper blade 29 and lower blade 33 Head andmodeberough by means of upper blades 31, 30 and lower blade 33.
  • In the third station is a gravis means separating knife 32 and lower blade 33.
  • the second or third station can also special punches are made by means of appropriate punching tools 41.
  • the product is 40.
  • the product 40 is transported to the next cutting station
  • the products are transported by means of two pairs of conveyor belts 35, 36, 37, 38, which face each other in pairs and clamp the product non-positively on the top and bottom sides.
  • the product 40 is accelerated by the transport device 34 within the device 20, transported in the correct position in the respective cutting station and then braked to a standstill. This process is repeated for further processing steps and finally for the transport of the product out of the device 20 to a device 20 downstream transport device, a processing device or display.
  • FIG. 5 shows by way of example a possible movement profile of a pair of transport belts during an entire working cycle (0-360 °) of the cutting device. Shown in FIG. 5 in the upper diagram is the path of a cam in degrees of rotation, in the middle diagram the first derivative as normalized velocity (ds / dPhi) and in the lower diagram the second derivative as normalized acceleration (dv / dPhi), respectively over 0 ° - 360 ° ( x-axis), which correspond to one machine cycle. With 100, 105 respectively the bottom dead center of the upper knife bridge at 0 ° or 360 ° is designated. At this point, the cutting process is complete but the product is not yet released. As a result, the transport belt pair is not moving yet.
  • the product is released and transport can begin. Consequently, at point 101, the cam path is still zero; as well as the speed.
  • the acceleration of the Transport belt starts at point 101, as shown in the lower diagram of the FIG. 5 to recognize.
  • the acceleration of the conveyor belt takes place to the point 102 (about 164 °).
  • the cam has covered a distance of about 130 degrees rotation angle and the conveyor belts move at a standardized speed of 3.2. Up to point 103 there is no further acceleration, so that the conveyor belts continue to move at the same speed.
  • the product is placed in the next cutting station or a new product is placed in the first cutting station. As a result, the conveyor belts are braked accordingly to a standstill. From point 104 to 105 the ribbons stop. It takes place in the respective cutting station, the pressing of the product by means not shown pressing beam and the lowering of the upper blade bridge to the bottom dead center and thus the edge trim of the product 40th

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Cutting Devices (AREA)
  • Control Of Cutting Processes (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Structure Of Belt Conveyors (AREA)

Abstract

The device (20) has blades (29-32) to be attached to an upper knife carrier (25) and for front edge trimming and top- and bottom trimming of products (40', 40''). A self-contained, independent drive (21) drives the carrier. A conveyor system (34) includes top-related and bottom-related pairs of conveyor belts for conveying the products through cutting stations (26-28). A set of self-contained, mutually independent position-controlled drives (22, 23) drive the respective pairs of conveyor belts. Control units (47-49) and a central machine control unit (51) interconnect the drives.

Description

Die Erfindung betrifft eine Vorrichtung und ein Verfahren zum gleichzeitigen, dreiseitigen Beschnitt von Produkten gemäß dem Oberbegriff von Anspruch 1.The invention relates to a device and a method for simultaneous, three-sided trimming of products according to the preamble of claim 1.

Bei der Herstellung von Broschuren werden an Sammelheftern die zusammengetragenen und gehefteten Produkte in einer Vorrichtung zum dreiseitigen Beschnitt, etwa einem Trimmer, geschnitten. Dies erfolgt in den Schneidestationen für den Vorderkantenbeschnitt und den Kopf- bzw. Fußbeschnitt durch bewegte Obermesser gegen feststehende Untermesser oder Schneidleisten.In booklet making, staplers are used to 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 leading edge trim and the head or Fußbeschnitt by moving upper blade against fixed lower blade or cutting strips.

Aus der EP 1 152 310 A1 ist ein solcher Trimmer bekannt. Der Trimmer weist eine gemeinsame Obermesserbrücke auf, die über einen Servomotor in einer Hubbewegung betreibbar ist. An der Obermesserbrücke sind die Obermesser für den Vorderkantenbeschnitt und für den Kopf- und Fußbeschnitt befestigt. Der Vorderkantenbeschnitt erfolgt hierbei in einer ersten Schneidstation und der Kopf- und Fußbeschnitt in einer zweiten Schneidstation. Zum Transport der Produkte in die Schneidstationen und aus diesen heraus weist der Trimmer eine Transportvorrichtung für die Produkte auf. Die Durchführung des dreiseitigen Beschnitts erfolgt hierbei in einzelnen Schritten. Das Transportsystem transportiert das Produkt in die erste Schneidstation und bringt das Produkt positionsgenau zum Stillstand. Dann erfolgt der Vorderkantenbeschnitt. Anschließend wird das Produkt durch das Transportsystem in eine zweite Schneidestation transportiert und positionsgenau zum Stillstand gebracht. Dann erfolgt der Kopf- und Fußbeschnitt. Anschließend wird das dreiseitige beschnittene Produkt in die Auslage transportiert. Das aus der EP 1 152 310 A1 bekannte Transportsystem besteht aus kopf- und fußseitigen Bänderpaaren, zwischen denen das Produkt kraftschlüssig geklemmt wird. Die Bänderpaare werden hierbei über durchgehende Antriebswellen von einem unabhängigen Antrieb, beispielsweise einem Servomotor, angetrieben.From the EP 1 152 310 A1 Such a trimmer is known. The trimmer has a common upper blade bridge, which is operable by a servo motor in a lifting movement. At the upper knife bridge, the upper knives for the front edge trim and for the head and Fußbeschnitt are attached. The leading edge trimming takes place here in a first cutting station and the head and Fußbeschnitt in a second cutting station. To transport the products into and out of the cutting stations, the trimmer has a transport device for the products. The implementation of the three-sided trimming takes place here in individual steps. The transport system transports the product to the first cutting station and brings the product to a precise stop position. Then the Vorderkantenbeschnitt takes place. The product is then transported by the transport system to a second cutting station and brought to a standstill with exact position. Then the head and Fußbeschnitt done. Subsequently, the three-sided trimmed product is transported into the delivery. That from the EP 1 152 310 A1 known transport system consists of head and foot side pairs of bands between which the product is clamped non-positively. The pairs of belts are driven by continuous drive shafts of an independent drive, such as a servo motor.

Zum Einstellen der Schneideinrichtung auf unterschiedliche Produktformate wird der Abstand der beiden Bänderpaare zueinander ebenfalls auf das jeweilige Produktformat eingestellt. Um das zu ermöglichen, sind verschiebbare formschlüssige Verbindungen zwischen Antriebswellen und Zahnriemenscheiben der Transportbänder vorgesehen. Die formschlüssigen Verbindungen sind als Polygonwellen oder Vielkeilwellen ausgebildet und unterliegen durch die Wechsellasten beim Beschleunigen und Bremsen der Produkte einem hohen Verschleiß. Dadurch können sie unbrauchbar werden und verursachen kostspielige Reparaturen. Auch die Transportbänder selbst unterliegen einem Verschleiß und müssen regelmäßig ausgewechselt werden. Das Wechseln der Transportbänder ist aufgrund der durchgehenden Wellen, welche beide Bänderpaare antreiben, mit einem hohen Arbeitsaufwand verbunden. Darüber hinaus ist auch der Einbau und Ausbau einer zusätzlichen Bearbeitungseinrichtung, z. B. einer Mittelschnitteinrichtung, mit einem hohen Arbeitsaufwand verbunden.For setting the cutting device to different product formats, the distance between the two pairs of strips is also set to the respective product format. To make this possible, are displaceable positive connections provided between drive shafts and pulleys the conveyor belts. The positive connections are designed as polygonal or splined shafts and are subject to high loads due to the alternating loads when accelerating and braking the products. This can make them unusable and cause costly repairs. Even the conveyor belts themselves are subject to wear and must be replaced regularly. Changing the conveyor belts is associated with a high workload due to the continuous waves, which drive both pairs of bands. In addition, the installation and removal of an additional processing facility, eg. B. a center cutting device, associated with a lot of work.

Aufgabe der vorliegenden Erfindung ist es, eine Vorrichtung zu schaffen, die die Nachteile des Standes der Technik vermeidet und einen sicheren Transport der Produkte gewährleistet bei gleichzeitiger einfacher Anpassung der Vorrichtung auf unterschiedliche Produktformate.The object of the present invention is to provide a device which avoids the disadvantages of the prior art and ensures a safe transport of the products while simultaneously adapting the device to different product formats.

Gelöst wird diese Aufgabe durch eine Vorrichtung gemäß dem kennzeichnenden Teil von Anspruch 1.This object is achieved by a device according to the characterizing part of claim 1.

Vorteilhafte Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen sowie aus der Beschreibung der Ausführungsbeispiele und den zugehörigen Zeichnungen.Advantageous developments of the invention will become apparent from the dependent claims and from the description of the embodiments and the accompanying drawings.

Eine erfindungsgemäße Ausführungsform einer Vorrichtung zum gleichzeitigen dreiseitigen Beschnitt von Produkten weist mehrere Schneidstationen auf. Weiterhin weist die Vorrichtung eine gemeinsame Obermesserbrücke auf, die sich durch die Schneidstationen erstreckt. Die Obermesserbrücke ist über einen ersten Antrieb in einer Hubbewegung betreibbar. An der Obermesserbrücke sind wenigstens die Messer zum Vorderkantenbeschnitt sowie zum Kopf- und Fußbeschnitt befestigt. Die Produkte werden mittels einer Transporteinrichtung mit kopfseitigen und fußseitigen Transportriemenpaaren durch die Schneidstationen der Vorrichtung transportiert. Die Antriebe für die Hubeinrichtung und die Transporteinrichtung sind jeweils als eigenständige, voneinander unabhängige Antriebe ausgeführt und über Steuereinrichtungen miteinander verbunden. Der Antrieb für die kopf- und fußseitigigen Transportriemenpaare der Transporteinrichtung weist jeweils eigenständige, voneinander unabhängige, positionsgeregelte Antriebe für jedes der beiden Transportriemenpaare auf. Dadurch sind keine verschleißanfälligen, formschlüssigen, durchgehenden Verbindungen im Antriebsstrang erforderlich. Das Auswechseln der Transportriemen wird wesentlich vereinfacht; ebenso das Einbauen und Ausbauen zusätzlicher Bearbeitungseinrichtungen, wie beispielsweise für Nutzentrennung oder Sonderstanzungen.An inventive embodiment of a device for simultaneous three-sided trimming of products has a plurality of cutting stations. Furthermore, the device has a common upper knife bridge, which extends through the cutting stations. The upper knife bridge can be operated via a first drive in one stroke movement. At the upper knife bridge, at least the knives are attached to the leading edge trimming and the head and Fußbeschnitt. The products are transported by means of a transport device with head-side and foot-side conveyor belt pairs through the cutting stations of the device. The drives for the lifting device and the transport device are each designed as independent, independent drives and connected to each other via control devices. The drive for the head and foot conveyor belt pairs of the transport device each has independent, independent, position-controlled drives for each of the two conveyor belt pairs. As a result, no wear-prone, positive, continuous connections in the drive train are required. The replacement of the conveyor belt is much easier; as well as the installation and removal of additional processing facilities, such as for Nutzentrennung or special punches.

In einer vorteilhaften Ausgestaltung werden die Antriebe der kopf- und fußseitigen über die Steuereinheiten bzw. über eine zentrale Maschinensteuerung mit Bewegungsprofilen beaufschlagt. Hierbei können die Bewegungsprofile für die beiden Bänderpaare jeweils gleich oder unterschiedlich sein. Dadurch ist es möglich, den Transport des Produktes von Schneidstation zu Schneidstation so zu steuern, dass bewusst unterschiedliche Transportwege an der Kopf- und Fußseite des Produktes gewählt werden, um das gewünschte Schneidergebnis zu erzielen.In an advantageous embodiment, the drives of the head and foot side are acted upon by the control units or via a central machine control with motion profiles. Here, the motion profiles for the two pairs of bands can be the same or different. This makes it possible to control the transport of the product from cutting station to cutting station so that deliberately different transport paths are selected at the top and bottom of the product to achieve the desired cutting result.

Weitere vorteilhafte Ausführungen der Erfindung werden anhand der nachfolgenden Figuren dargestellt.Further advantageous embodiments of the invention are illustrated by the following figures.

Es zeigen im Einzelnen:

Figur 1A
eine Schneidevorrichtung mit Transportvorrichtung gemäß dem Stand der Technik
Figur 1B
eine Ansicht der Antriebe einer Vorrichtung gemäß Figur 1A
Figur 2
eine erfindungsgemäße Schneidevorrichtung
Figur 3
Teile der Transportvorrichtungen innerhalb einer erfindungsgemäßen Vorrichtung von Figur 2
Figur 4
die Transportvorrichtung
Figur 5
ein Bewegungsprofil der Transporteinrichtung.
They show in detail:
Figure 1A
a cutting device with transport device according to the prior art
FIG. 1B
a view of the drives of a device according to Figure 1A
FIG. 2
a cutting device according to the invention
FIG. 3
Parts of the transport devices within a device according to the invention of FIG. 2
FIG. 4
the transport device
FIG. 5
a movement profile of the transport device.

Ein repräsentatives Beispiel für eine Schneidvorrichtung 19 zum Randbeschneiden mit getrennten Antriebsvorrichtungen gemäß dem Stand der Technik wird in Fig. 1A gezeigt. Ein erster Antriebsmotor 1 realisiert die Bewegung der Obermesserbrücke 2, an welcher die Obermesser befestigt sind. Die Produktlaufrichtung ist durch Pfeile T gekennzeichnet. Ein zweiter Antriebsmotor 4 treibt über eine erste und zweite jeweils durchgehende Antriebswelle 5, 6 die Bänder 7, 8 des Transportsystems 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 zentralen Maschinensteuereinheit 18 führen.A representative example of a cutting device 19 for edge trimming with separate drive devices according to the prior art is disclosed in US Pat Fig. 1A shown. A first drive motor 1 realizes the movement of the upper blade bridge 2, to which the upper blades are attached. The product running direction is indicated by arrows T. A second drive motor 4 drives the belts 7, 8 of the transport system 9 via a first and second respectively continuous 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 central machine control unit 18.

Die wesentlichen Elemente der die zwei Bewegungsabläufe realisierenden Antriebe sind in der Fig. 1B erkennbar. Der erste Antriebsmotor 1 realisiert vermittels des Zahnriemens 15, der Zahnriemenscheibe 16 und des Getriebes 17 die vertikale unharmonische Oszillationsbewegung der Obermesserbrücke 2. Die Obermesser 3 werden während des Schneidevorgangs gegen Untermesser 13 gedrückt. Der zweite Antriebsmotor 4 treibt vermittels eines mechanischen Getriebes 14 die Wellen 5, 6, so dass die Bänder 7, 8 des Transportsystems bewegt werde. Die Pfeile T geben die Produktlaufrichtung an.The essential elements of the two movements implementing drives are in the Fig. 1B recognizable. The first drive motor 1 realized by means of the toothed belt 15, the toothed belt pulley 16 and the gear 17, the vertical inharmonic oscillation movement of the upper blade bridge 2. The upper blade 3 are pressed during the cutting operation against lower blade 13. The second drive motor 4 drives the shafts 5, 6 by means of a mechanical transmission 14, so that the belts 7, 8 of the transport system are moved. The arrows T indicate the product running direction.

In den Figuren 2 und 3 ist eine erfindungsgemäße Schneideeinrichtung 20 dargestellt, wobei in Figur 3 der besseren Übersichtlichkeit wegen nur die kopfseitige Transportvorrichtung dargestellt ist und die Steuereinheiten sowie die Verbindungen weggelassen wurden. Die Schneideeinrichtung 20 weist eine Obermesserbrücke 25 auf, die durch einen Antriebsmotor 21 in Hubbewegungen versetzt wird. Die Obermesserbrücke 25 erstreckt sich durch alle Schneidstationen, im vorliegenden Beispiel sind es drei: die Station 26 für den Vorderkantenbeschnitt, die Station 27 für den Kopf- und Fußbeschnitt und eine weitere Bearbeitungsstation 28 für spezielle Stanzungen oder für die Nutzentrennung. An der Obermesserbrücke sind entsprechende Obermesser 29, 30, 31, 32 angebracht, die gegen Untermesser 33 bewegt werden und so den Randbeschnitt oder Sonderstanzungen bzw. Nutzentrennung des Produktes 40 durchführen. Das Produkt 40 wird von einer Transporteinrichtung 34 durch die einzelnen Schneidstationen 26, 27, 28 der Vorrichtung 20 transportiert. Die Transporteinrichtung 34 weist hierzu kopfseitige 35, 36 und fußseitige Transportriemenpaare 37, 38 auf, zwischen denen das Produkt 40 geklemmt wird. Angetrieben werden die kopfseitigen Transportriemenpaare 35, 36 durch einen unabhängigen Antriebsmotor 23 und die fußseitigen Transportriemenpaare durch einen unabhängigen Antriebsmotor 22.In the Figures 2 and 3 a cutting device 20 according to the invention is shown, wherein in FIG. 3 For better clarity, only the head-side transport device is shown and the control units and the connections have been omitted. The cutting device 20 has an upper knife bridge 25, which is offset by a drive motor 21 in strokes. The upper knife bridge 25 extends through all the cutting stations, in the present example, there are three: the station 26 for the leading edge trimming, the station 27 for the head and Fußbeschnitt and another processing station 28 for special punches or for Depanelization. At the upper knife bridge corresponding upper blade 29, 30, 31, 32 are mounted, which are moved against lower blade 33 and thus perform the edge trim or special punches or Nutzentrennung the product 40. The product 40 is transported by a transport device 34 through the individual cutting stations 26, 27, 28 of the device 20. For this purpose, the transport device 34 has head-side 35, 36 and foot-side conveyor belt pairs 37, 38, between which the product 40 is clamped. The head-side conveyor belt pairs 35, 36 are driven by an independent drive motor 23 and the foot-side conveyor belt pairs by an independent drive motor 22nd

Die einzelnen unabhängigen Antriebe 21, 22, 23 sind über ihre zugehörigen Steuereinheiten 47, 48, 49 über eine Verbindung 50 zum Austausch von Daten und / oder Steuersignalen miteinander gekoppelt. Des Weiteren können sie zusätzlich noch mit der zentralen Maschinensteuerung 51 verbunden sein. Hierüber ist es möglich, die jeweiligen Antriebe 22 und 23 mit einem definierten Bewegungsprofil zu beaufschlagen und so das Produkt 40 individuell an seiner Kopf- und Fußseite zu beschleunigen und zu transportieren.The individual independent drives 21, 22, 23 are coupled to one another via their associated control units 47, 48, 49 via a connection 50 for the exchange of data and / or control signals. Furthermore, they may additionally be connected to the central machine controller 51. By way of this it is possible to act on the respective drives 22 and 23 with a defined movement profile and thus to accelerate and transport the product 40 individually on its head and foot.

In Figur 4 sind die wesentlichen Bauteile der Transportvorrichtung 34 dargestellt. Die Transportrichtung der Produkte 40, 40', 40" ist durch die Pfeile T dargestellt. Die Transportvorrichtung 34 erstreckt sich im vorliegenden Ausführungsbeispiel durch drei Schneidestationen. In der ersten Station erfolgt der Vorderkantenbeschnitt mittels Obermesser 29 und Untermesser 33. In der zweiten Station erfolgt der Kopf- und Fußbeschnitt mittels Obermessern 31, 30 und Untermesser 33. In der dritten Station erfolgt eine Nutzentrennung mittels Trennmesser 32 und Untermesser 33. In der zweiten oder dritten Station können zusätzlich auch Sonderstanzungen mittels entsprechender Stanzwerkzeuge 41 vorgenommen werden. Während der Schneidvorgänge steht das Produkt 40 still. Nach Beendigung des jeweiligen Schneidvorgangs wird das Produkt 40 zur nächsten Schneidstation transportiert. Der Transport der Produkte erfolgt mittels zweier Transportriemenpaare 35, 36, 37, 38, die sich paarweise gegenüberstehen und das Produkt jeweils an der Kopf- und Fußseite kraftschlüssig klemmen.In FIG. 4 the essential components of the transport device 34 are shown. The transport direction of the products 40, 40 ', 40 "is represented by the arrows T. In the present embodiment, the transport device 34 extends through three cutting stations In the first station, the leading edge trimming is effected by means of the upper blade 29 and lower blade 33 Head and Fußbeschnitt by means of upper blades 31, 30 and lower blade 33. In the third station is a Nutzentrennung means separating knife 32 and lower blade 33. In the second or third station can also special punches are made by means of appropriate punching tools 41. During the cutting operations, the product is 40. After completion of the respective cutting process, the product 40 is transported to the next cutting station The products are transported by means of two pairs of conveyor belts 35, 36, 37, 38, which face each other in pairs and clamp the product non-positively on the top and bottom sides.

Die kopf- 35, 36 und fußseitigen 37, 38 Transportriemenpaare werden jeweils durch unabhängige Antriebsmotoren 22, 23 mit den zugehörigen Komponenten der Antriebsstränge 42, 43 angetrieben. Jeder der beiden Antriebsstränge 42, 43 wird jeweils gebildet aus den Komponenten:

  • Zahnriemenscheibe 60, 61 auf der Motorwelle (wobei in Fig. 4 die Zahnriemenscheibe 61 verdeckt ist);
  • Zahnriemenscheibe 63, 64 zum Antrieb der Welle 65, 66 für den oberen Riemen 35, 37;
  • Zahnriemenscheibe 67, 68 zum Antrieb der Welle 69, 70 für den unteren Riemen 36, 38 (wobei in Fig. 4 die Welle 70 verdeckt ist);
  • Zahnriemenscheibe 71, 72 als Umlenk- und Spanneinrichtung (wobei die Zahnriemenscheibe 71 in Fig. 4 verdeckt ist);
  • Doppelseitig verzahnte Zahnriemen 73, 74
The head 35, 36 and foot 37, 38 pairs of conveyor belts are each driven by independent drive motors 22, 23 with the associated components of the drive trains 42, 43. Each of the two drive trains 42, 43 is formed in each case from the components:
  • Timing pulley 60, 61 on the motor shaft (where in Fig. 4 the toothed belt pulley 61 is covered);
  • Timing pulley 63, 64 for driving the shaft 65, 66 for the upper belt 35, 37;
  • Timing pulley 67, 68 for driving the shaft 69, 70 for the lower belt 36, 38 (wherein in Fig. 4 the shaft 70 is hidden);
  • Timing belt pulley 71, 72 as a deflection and tensioning device (wherein the toothed belt pulley 71 in Fig. 4 is covered);
  • Double-toothed toothed belts 73, 74

Das Produkt 40 wird von der Transportvorrichtung 34 innerhalb der Vorrichtung 20 beschleunigt, positionsgerecht in die jeweilige Schneidstation transportiert und dann bis zum Stillstand abgebremst. Dieser Vorgang wiederholt sich für weitere Bearbeitungsschritte und schließlich zum Transport des Produktes aus der Vorrichtung 20 heraus zu einer der Vorrichtung 20 nachgelagerten Transportvorrichtung, einer Bearbeitungsvorrichtung oder Auslage.The product 40 is accelerated by the transport device 34 within the device 20, transported in the correct position in the respective cutting station and then braked to a standstill. This process is repeated for further processing steps and finally for the transport of the product out of the device 20 to a device 20 downstream transport device, a processing device or display.

Figur 5 zeigt beispielhaft ein mögliches Bewegungsprofil eines Transportriemenpaares während eines gesamten Arbeitstaktes (0 - 360°) der Schneidvorrichtung. Dargestellt in Figur 5 ist im oberen Diagramm der Weg einer Kurvenscheibe in Grad Drehwinkel, im mittleren Diagramm die erste Ableitung als normierte Geschwindigkeit (ds/dPhi) und im unteren Diagramm die zweite Ableitung als normierte Beschleunigung (dv/dPhi), jeweils über 0° - 360° (x-Achse), die einem Maschinentakt entsprechen. Mit 100, 105 ist jeweils der untere Totpunkt der Obermesserbrücke bei 0° bzw. 360° bezeichnet. An diesem Punkt ist der Schneidvorgang abgeschlossen aber das Produkt noch nicht frei. Demzufolge bewegt sich das Transportriemenpaar noch nicht. Beim Punkt 101 ist das Produkt freigegeben und der Transport kann beginnen. Folglich ist am Punkt 101 der Weg der Kurvenscheibe noch Null; ebenso die Geschwindigkeit. Die Beschleunigung der Transportriemen beginnt am Punkt 101, wie aus dem unteren Diagramm der Figur 5 zu erkennen. Die Beschleunigung der Transportriemen erfolgt bis zum Punkt 102 (etwa 164°). Die Kurvenscheibe hat bis hier einen Weg von etwa 130 Grad Drehwinkel zurückgelegt und die Transportriemen bewegen sich mit einer normierten Geschwindigkeit von 3,2. Bis zum Punkt 103 erfolgt keine weitere Beschleunigung, so dass sich die Transportriemen mit gleicher Geschwindigkeit weiter bewegen. Von Punkt 103 bis 104 erfolgt die Anlage des Produktes in der nächsten Schneidestation bzw. die Anlage eines neuen Produktes in der ersten Schneidestation. Demzufolge werden die Transportriemen entsprechend abgebremst bis zum Stillstand. Von Punkt 104 bis 105 stehen die Bänder still. Es erfolgt in der jeweiligen Schneidestation das Abpressen des Produktes mittels nicht näher dargestellter Pressbalken und die Absenkung der Obermesserbrücke bis zum unteren Totpunkt und damit der Randbeschnitt des Produktes 40. FIG. 5 shows by way of example a possible movement profile of a pair of transport belts during an entire working cycle (0-360 °) of the cutting device. Shown in FIG. 5 in the upper diagram is the path of a cam in degrees of rotation, in the middle diagram the first derivative as normalized velocity (ds / dPhi) and in the lower diagram the second derivative as normalized acceleration (dv / dPhi), respectively over 0 ° - 360 ° ( x-axis), which correspond to one machine cycle. With 100, 105 respectively the bottom dead center of the upper knife bridge at 0 ° or 360 ° is designated. At this point, the cutting process is complete but the product is not yet released. As a result, the transport belt pair is not moving yet. At point 101, the product is released and transport can begin. Consequently, at point 101, the cam path is still zero; as well as the speed. The acceleration of the Transport belt starts at point 101, as shown in the lower diagram of the FIG. 5 to recognize. The acceleration of the conveyor belt takes place to the point 102 (about 164 °). The cam has covered a distance of about 130 degrees rotation angle and the conveyor belts move at a standardized speed of 3.2. Up to point 103 there is no further acceleration, so that the conveyor belts continue to move at the same speed. From point 103 to 104, the product is placed in the next cutting station or a new product is placed in the first cutting station. As a result, the conveyor belts are braked accordingly to a standstill. From point 104 to 105 the ribbons stop. It takes place in the respective cutting station, the pressing of the product by means not shown pressing beam and the lowering of the upper blade bridge to the bottom dead center and thus the edge trim of the product 40th

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11 Antriebsmotor für ObermesserbrückeDrive motor for upper knife bridge 22 ObermesserbrückeTop knife bridge 33 Obermesser für Kopf- und FußbeschnittUpper knife for head and Fußbeschnitt 44 Antriebsmotor für TransporteinrichtungDrive motor for transport device 55 Antriebswelledrive shaft 66 Antriebswelledrive shaft 77 obere Transportbänderupper conveyor belts 88th untere Transportbänderlower conveyor belts 99 Transportsystemtransport system 1010 Steuereinheitcontrol unit 1111 Steuereinheitcontrol unit 1212 Verbindung zum Austausch von Daten und / oder SteuersignalenConnection for exchanging data and / or control signals 1313 Untermesserlower blade 1414 Getriebetransmission 1515 Zahnriementoothed belt 1616 ZahnriemenscheibeTiming pulley 1717 Getriebetransmission 1818 zentrale Maschinensteuerungcentral machine control 1919 Schneidevorrichtung gemäß Stand der TechnikCutting device according to the prior art 2020 erfindungsgemäße SchneideeinrichtungCutting device according to the invention 2121 Antriebsmotor für ObermesserbrückeDrive motor for upper knife bridge 2222 Antriebsmotor für fußseitiges TransportbänderpaarDrive motor for foot-side conveyor belt pair 2323 Antriebsmotor für kopfseitiges TransportbänderpaarDrive motor for head-side conveyor belt pair 2525 ObermesserbrückeTop knife bridge 2626 Schneidstation für VorderkantenbeschnittCutting station for front edge trimming 2727 Schneidstation für Kopf- und FußbeschnittCutting station for head and foot trimming 2828 weitere Bearbeitungsstationfurther processing station 2929 Obermesser für VorderkantenbeschnittUpper blade for front edge trimming 3030 Obermesser für FußbeschnittUpper knife for foot trimming 3131 Obermesser für KopfbeschnittUpper blade for head trimming 3232 Obermesser für NutzentrennungUpper knife for crop separation 3333 Untermesserlower blade 3434 Transporteinrichtungtransport means 3535 oberer kopfseitiger TransportriemenUpper head conveyor belt 3636 unterer kopfseitiger Transportriemenlower head conveyor belt 3737 oberer fußseitiger Transportriemenupper foot-side transport belt 3838 unterer fußseitiger Transportriemenlower foot-side transport belt 40, 40', 40"40, 40 ', 40 " Produktproduct 4141 Stanzwerkzeugpunching tool 4242 kopfseitiger AntriebsstrangHead-side drive train 4343 fußseitiger Antriebsstrangfoot-side drive train 4747 Steuereinheitcontrol unit 4848 Steuereinheitcontrol unit 4949 Steuereinheitcontrol unit 5050 Verbindung zum Austausch von Daten und / oder SteuersignalenConnection for exchanging data and / or control signals 5151 zentrale Maschinensteuerungcentral machine control 6060 Zahnriemenscheibe auf der MotorwelleTiming belt pulley on the motor shaft 6161 Zahnriemenscheibe auf der MotorwelleTiming belt pulley on the motor shaft 6363 ZahnriemenscheibeTiming pulley 6464 ZahnriemenscheibeTiming pulley 6565 Wellewave 6666 Wellewave 6767 ZahnriemenscheibeTiming pulley 6868 ZahnriemenscheibeTiming pulley 6969 Wellewave 7070 Wellewave 7171 ZahnriemenscheibeTiming pulley 7272 ZahnriemenscheibeTiming pulley 7373 Zahnriementoothed belt 7474 Zahnriementoothed belt 100100 Punkt eines BewegungsprofilsPoint of a movement profile 101101 Punkt eines BewegungsprofilsPoint of a movement profile 102102 Punkt eines BewegungsprofilsPoint of a movement profile 103103 Punkt eines BewegungsprofilsPoint of a movement profile 104104 Punkt eines BewegungsprofilsPoint of a movement profile 105105 Punkt eines BewegungsprofilsPoint of a movement profile TT Transportrichtungtransport direction

Claims (5)

Vorrichtung (20) zum gleichzeitigen, dreiseitigen Beschnitt von Produkten (40) in mehreren Schneidstationen (26, 27, 28), mit einer gemeinsamen Obermesserbrücke (25), die in einer Hubbewegung betreibbar ist, wobei an der Obermesserbrücke wenigstens Messer zum Vorderkantenbeschnitt (29) sowie Kopf- und Fußbeschnitt (30, 31) der Produkte (40) anbringbar sind, mit einem ersten, die Obermesserbrücke (25) antreibenden Antrieb (21) sowie mit einer Transporteinrichtung (34) mit kopfseitigen und fußseitigen Transportriemenpaaren (35, 36, 37, 38) zum Transportieren der Produkte (40) durch die Schneidstationen (26, 27, 28) der Vorrichtung (20), mit einem zweiten, die Transporteinrichtung antreibenden Antrieb (22, 23), wobei der erste (21) und zweite (22, 23) Antrieb als eigenständige, voneinander unabhängige Antriebe ausgeführt sind, die über Steuereinheiten (47, 48, 49, 51) miteinander verbunden sind,
dadurch gekennzeichnet,
dass die kopfseitigen und fußseitigen Transportriemenpaare der Transporteinrichtung jeweils durch eigenständige voneinander unabhängige, positionsgeregelte Antriebe angetrieben werden.Device (20) for simultaneous, three-sided trimming of products (40) in a plurality of cutting stations (26, 27, 28), with a common upper knife bridge (25) which is operable in a lifting movement, wherein at least knife for leading edge trimming (29 ) and head and Fußbeschnitt (30, 31) of the products (40) are attachable, with a first, the upper knife bridge (25) driving drive (21) and with a transport device (34) with head-side and foot-side conveyor belt pairs (35, 36, 37, 38) for transporting the products (40) through the cutting stations (26, 27, 28) of the device (20), with a second drive (22, 23) driving the transport means, the first (21) and second ( 22, 23) drive are designed as independent, independent drives, which are connected to one another via control units (47, 48, 49, 51),
characterized,
that the head-side and foot-side conveyor belt pairs of the transport device are each driven by independent independent, position-controlled drives. Vorrichtung nach Anspruch 1 ,
dadurch gekennzeichnet,
dass die Antriebe (22, 23) der kopf- und fußseitigen Transportriemenpaare über die Steuereinheiten (48, 49) mit einem Bewegungsprofil beaufschlagt werden.Device according to claim 1,
characterized,
in that the drives (22, 23) of the head and foot-side conveyor belt pairs are subjected to a movement profile via the control units (48, 49). Vorrichtung nach Anspruch 2 ,
dadurch gekennzeichnet,
dass das Bewegungsprofil für die Antriebe der kopf- und fußseitigen Transportriemen jeweils gleich ist.Device according to claim 2,
characterized,
that the movement profile for the drives of the head and foot conveyor belts is the same. Vorrichtung nach Anspruch 2 ,
dadurch gekennzeichnet,
dass das Bewegungsprofil für die Antriebe der kopf- und fußseitigen Transportriemen jeweils unterschiedlich ist.Device according to claim 2,
characterized,
that the movement profile for the drives of the head and foot conveyor belts each is different. Vorrichtung nach einem der vorhergehenden Ansprüche ,
dadurch gekennzeichnet,
dass die Antriebe (22, 23) der kopf- und fußseitigen Transportriemenpaare mit einer zentralen Maschinensteuerung (51) verbunden sind.Device according to one of the preceding claims,
characterized,
in that the drives (22, 23) of the head and foot-side conveyor belt pairs are connected to a central machine control (51).
EP13157345.3A 2012-03-20 2013-03-01 Cutting device Not-in-force EP2641709B1 (en)

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CN103317544A (en) 2013-09-25
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JP2013193207A (en) 2013-09-30
US10005638B2 (en) 2018-06-26

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