EP1759820A1 - Trilateral trimmer - Google Patents

Trilateral trimmer Download PDF

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Publication number
EP1759820A1
EP1759820A1 EP06118640A EP06118640A EP1759820A1 EP 1759820 A1 EP1759820 A1 EP 1759820A1 EP 06118640 A EP06118640 A EP 06118640A EP 06118640 A EP06118640 A EP 06118640A EP 1759820 A1 EP1759820 A1 EP 1759820A1
Authority
EP
European Patent Office
Prior art keywords
pressing
trimming
product
transport
lifting
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
EP06118640A
Other languages
German (de)
French (fr)
Other versions
EP1759820B1 (en
Inventor
Wolfgang Matthes
Andreas Steinert
Falk Wagner
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.)
Heidelberger Druckmaschinen 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
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Publication of EP1759820A1 publication Critical patent/EP1759820A1/en
Application granted granted Critical
Publication of EP1759820B1 publication Critical patent/EP1759820B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/01—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
    • 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

Definitions

  • the invention relates to a device for three-sided trimming of products, in particular brochures according to the preamble of claim 1.
  • the press beams are attached to the top knife bridge and positioned to the top knife edge so as to press the product prior to dipping the knife edge.
  • a trimmer is for example from the European Patent EP 1 152 310 known.
  • the product remains pressed in the trimmer disclosed there due to the structural design shown there until the upper knife bridge is in the upward movement again after the cut.
  • the time at which the product is released by the spring-loaded press beams depends on the distance traveled in the upward movement and the product thickness. Only after release of the product can this be conveyed by means of the transport device to the next cutting station.
  • a disadvantage of the prior art is therefore that in such cutting devices, the speed of the brochure is limited in the cutting device, otherwise the bounce of the brochure on the leading edge stop prevents a clean alignment and thus a clean cut of the product.
  • such a device for three-sided trimming comprises means for terminating the pressing of the pressing device, such that the pressing time is variable within the cycle time of the device.
  • the device comprises a transport device which brings the product into a first cutting position, from a first cutting position to a second cutting position within a transport time.
  • this transport time has a minimum, which should not be exceeded, since otherwise the slowing down of the product in the cutting position is made more difficult by the correspondingly increased transport speed.
  • the control of the pressing device is advantageously designed such that it determines the time of completion of the pressing of the pressing device such that substantially does not increase the transport time of the product at a shortening of the stroke duration of the lifting movement of the lifting device.
  • the pressing device is attached to the lifting device and the means for terminating the pressing comprise means for temporarily switching off the pressing device.
  • a plurality of knives are assigned a correspondingly controllable pressing device.
  • a representative example of a cutter for three-sided trimming of products is shown in FIG.
  • 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 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 for controlling the alignment device 42.
  • 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 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.
  • 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.
  • electronic cams for the servo drive of the crotch bands are deposited.
  • 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 in this embodiment without further alignment.
  • Fig. 3 the pressing device 30 according to the invention is shown.
  • the upper knife bridge 36 moves with the upper blade 37 intermittently against the fixed lower blade 40.
  • the holder 31 is fixed, in which the pressure bar 32 by means of the guide pin 35a firmly connected to it, 35b is stored.
  • the guide pins 35a, 35b are connected at the other end by the bridge 34 with each other and with the piston rod of a pneumatic cylinder 33 which is fixed to the holder 31.
  • compression springs 39 are mounted and cause in the initial state a fixed distance between the holder 31 and pressure bar 32nd
  • the upper knife bridge 36 moves downwardly with the upper knife 37.
  • the pressure bar 32 also moves downwards, uses the product 16 and presses it together.
  • the pressure bar 32 moves relative to the holder 31 and presses the compression spring 39 together.
  • the pneumatic cylinder 33 is switched to the function "extension" at a controllable time and acts by its force, which must be greater than the force of the compression springs 39, against the force of the compression springs 39 Press bar 32 held in the current position.
  • the pressure of the product 16 is thereby canceled immediately and not only when the compression springs 39 relax. By this time, the product 16 can be removed earlier.
  • the pneumatic cylinder 33 is switched to the "retract" function and moves the pressure bar 32 back into its starting position.
  • the control of the pneumatic cylinder 33 is effected by a press device control 42, which is connected via the connection for the exchange of data and / or control signals 12 with the other control units 10, 11 and the machine control.
  • a press device control 42 which is connected via the connection for the exchange of data and / or control signals 12 with the other control units 10, 11 and the machine control.
  • 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, if appropriate, ensure a lateral alignment of the product before trimming. 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.
  • 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 duration of pressing the product in particular by fixing the pressing device on the upper knife bridge can be adjusted so that the same time for the transport of the product 16 within the cutter 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)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Basic Packing Technique (AREA)
  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Sewing Machines And Sewing (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Apparatuses And Processes For Manufacturing Resistors (AREA)
  • Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
  • Nonmetal Cutting Devices (AREA)
  • Details Of Cutting Devices (AREA)

Abstract

The device has a lifting equipment that is arranged in a dead-centre position, where the lifting equipment, a cutter and an upper cutter (37) are mounted to a head section, a base section, a front edge section of the product. A pressing device (30) presses the product before cutting. A pneumatic cylinder (33) and a pressing device controller (42) stop the pressing of the pressing device in such a manner that a pressing duration is changed within clock duration of the device.

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 Sammelheftern 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. Daher wird vor dem Schnitt das Produkt gegen Vorderkantenanschläge transportiert und seitlich ausgerichtet, um die Abschnittsbreite für den Kopfbeschnitt bzw. Fußbeschnitt exakt einzustellen. Vor dem Schnittbeginn wird das Produkt durch federbelastete Niederhalter (Pressbalken) gegen das Untermesser gepresst, um eine saubere Schnittfläche zu erhalten. Die Pressbalken sind an der Obermesserbrücke befestigt und zur Schneide des Obermessers so angeordnet, dass sie das Produkt vor dem Eintauchen der Schneide pressen. Ein derartiger Trimmer ist beispielsweise aus der europäischen Patentschrift EP 1 152 310 bekannt. Das Produkt bleibt bei dem dort offenbarten Trimmer aufgrund der dort gezeigten konstruktiven Ausführung so lange gepresst, bis sich die Obermesserbrücke nach dem Schnitt wieder in der Aufwärtsbewegung befindet. Der Zeitpunkt, an dem das Produkt durch die federbelasteten Pressbalken wieder freigegeben wird, ist abhängig vom zurückgelegten Weg in der Aufwärtsbewegung und der Produktdicke. Erst nach Freigabe des Produktes kann dieses mittels der Transporteinrichtung zur nächsten Schneidstation gefördert werden. Nachteilig am Stand der Technik ist daher, dass bei derartigen Schneideinrichtungen die Geschwindigkeit der Broschur in der Schneideeinrichtung begrenzt ist, da sonst das Abprallen der Broschur am Vorderkantenanschlag ein sauberes Ausrichten und damit einen sauberen Schnitt des Produkts verhindert.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. Therefore, before cutting, the product is transported against leading edge stops and laterally aligned to precisely set the section width for the head trimming. Before the start of the cut, the product is pressed against the bottom knife by means of spring-loaded hold-downs (press bars) in order to obtain a clean cut surface. The press beams are attached to the top knife bridge and positioned to the top knife edge so as to press the product prior to dipping the knife edge. Such a trimmer is for example from the European Patent EP 1 152 310 known. The product remains pressed in the trimmer disclosed there due to the structural design shown there until the upper knife bridge is in the upward movement again after the cut. The time at which the product is released by the spring-loaded press beams depends on the distance traveled in the upward movement and the product thickness. Only after release of the product can this be conveyed by means of the transport device to the next cutting station. A disadvantage of the prior art is therefore that in such cutting devices, the speed of the brochure is limited in the cutting device, otherwise the bounce of the brochure on the leading edge stop prevents a clean alignment and thus a clean cut of the product.

Daher ist es Aufgabe der Erfindung, eine Schneideeinrichtung zu schaffen, die eine größere Produktivität erlaubt. Diese Aufgabe wird mit einer Vorrichtung zum dreiseitigen Beschnitt mit dem kennzeichnenden Merkmal von Anspruch 1 gelöst. Weitere Merkmale ergeben sich aus den Unteransprüchen.Therefore, it is an object of the invention to provide a cutting device that allows greater productivity. This object is achieved with a device for three-sided trimming with the characterizing feature of claim 1. Further features emerge from the subclaims.

Dementsprechend umfasst eine derartige Vorrichtung zum dreiseitigen Beschnitt Mittel zum Beenden des Pressens der Presseinrichtung, derart, dass die Pressdauer innerhalb der Taktdauer der Vorrichtung veränderbar ist. Durch die Erfindung ist es nun möglich, die Bewegungsabläufe im Trimmer so zu optimieren, dass das Produkt bereits direkt nach vollständigem Schnitt für den Transport freigegeben wird. Dies lässt sich insbesondere derart erreichen, indem dem Mittel zum Beenden des Pressens der Presseinrichtung den Pressbalken zu diesem Zeitpunkt in seiner Position zur Obermesserbrücke fixiert und diese Fixierung erst im oberen Umkehrpunkt oder in der Abwärtsbewegung der Obermesserbrücke wieder aufgehoben wird. Dadurch kann die insgesamt für den dreiseitigen Beschnitt des Produkts zur Verfügung stehende Zeit besser genutzt werden. Zudem ist eine Anpassung beispielsweise der Pressdauer auf unterschiedliche Produkteigenschaften, wie dessen Gewicht oder Abmessungen, möglich. Vor allem wird die Pressdauer aber unabhängig von der Produktdicke.Accordingly, such a device for three-sided trimming comprises means for terminating the pressing of the pressing device, such that the pressing time is variable within the cycle time of the device. With the invention, it is now possible to optimize the motion sequences in the trimmer so that the product is already released for transport after a complete cut. This can be achieved in particular in such a way that the means for terminating the pressing of the pressing device fixed the pressing beam at this time in its position to the upper knife bridge and this fixation is canceled only in the upper reversal point or in the downward movement of the upper knife bridge. This will make better use of the overall time available for tri-section trimming of the product. In addition, an adaptation, for example, the press duration on different product properties, such as its weight or dimensions, possible. Above all, the pressing time is independent of the product thickness.

In einer besonders bevorzugten Ausführungsform der erfindungsgemäßen Vorrichtung umfasst die Vorrichtung eine Transporteinrichtung, die das Produkt in eine erste Schneidposition, von einer ersten Schneidposition in eine zweite Schneidposition innerhalb einer Transportdauer bringt. Wie bereits erwähnt, hat diese Transportdauer ein Minimum, das nicht unterschritten werden sollte, da anderenfalls durch die entsprechend gesteigerte Transportgeschwindigkeit das Abbremsen des Produkts in der Schneidposition erschwert ist. Entsprechend ist vorteilhafterweise die Steuerung der Presseinrichtung derart ausgelegt, dass diese den Zeitpunkt des Beendens des Pressens der Presseinrichtung derart bestimmt, dass sich bei einer Verkürzung der Taktdauer der Hubbewegung der Hubeinrichtung die Transportdauer des Produkts im Wesentlichen nicht erhöht. Dabei wird durch Verlegung des Zeitpunkts des Beendens des Pressens des Produkts innerhalb des Maschinentakts auch bei einer erhöhten Produktivität der Schneideinrichtung bei seiner verkürzten Taktdauer gewährleistet, so dass der Transport des Produkts mit gleicher Qualität stattfindet. Auf diese Weise ist es möglich, bei gleich bleibender Transportdauer den Maschinentakt beispielsweise von 10.000 Takten pro Stunde auf 14.000 oder 16.000 Takte pro Stunde anzuheben.In a particularly preferred embodiment of the device according to the invention, the device comprises a transport device which brings the product into a first cutting position, from a first cutting position to a second cutting position within a transport time. As already mentioned, this transport time has a minimum, which should not be exceeded, since otherwise the slowing down of the product in the cutting position is made more difficult by the correspondingly increased transport speed. Accordingly, the control of the pressing device is advantageously designed such that it determines the time of completion of the pressing of the pressing device such that substantially does not increase the transport time of the product at a shortening of the stroke duration of the lifting movement of the lifting device. In this case, by shifting the timing of the termination of the pressing of the product within the machine cycle is ensured even at an increased productivity of the cutting device with its shortened cycle time, so that the transport of the product with the same Quality takes place. In this way, it is possible to increase the machine cycle, for example, from 10,000 cycles per hour to 14,000 or 16,000 cycles per hour with the same transport duration.

In einer weiteren vorteilhaften Ausführungsform der erfindungsgemäßen Vorrichtung ist die Presseinrichtung an der Hubeinrichtung befestigt und die Mittel zum Beenden des Pressens umfassen Mittel zum zeitweisen Abschalten der Presseinrichtung.In a further advantageous embodiment of the device according to the invention, the pressing device is attached to the lifting device and the means for terminating the pressing comprise means for temporarily switching off the pressing device.

In einer weiteren vorteilhaften Ausführungsform der erfindungsgemäßen Vorrichtung ist einer Mehrzahl von Messern insbesondere den Messern zum Vorderkantenbeschnitt, Kopfbeschnitt, Fußbeschnitt, Mittelschnitt oder Trioschnitt der Vorrichtung eine entsprechend steuerbare Presseinrichtung zugeordnet.In a further advantageous embodiment of the device according to the invention, a plurality of knives, in particular the knives for leading edge trimming, head trimming, foot trimming, center cut or trio cut, are assigned a correspondingly controllable pressing device.

Bevorzugte Ausführungsform der erfindungsgemäßen Vorrichtung werden im Folgenden unter Bezugnahme auf die Zeichnungen im Einzelnen näher beschrieben.
Es zeigen in schematischer Darstellung

Fig. 1
eine Ansicht der Schneideinrichtung zum Randbeschneiden von Produkten,
Fig. 2
eine detaillierte Ansicht des Transportsystems und
Fig. 3
eine detaillierte Ansicht der Presseinrichtung
Preferred embodiments of the device according to the invention are described in detail below with reference to the drawings.
It show in a schematic representation
Fig. 1
a view of the cutting device for edge trimming products,
Fig. 2
a detailed view of the transport system and
Fig. 3
a detailed view of the pressing device

Ein repräsentatives Beispiel für eine Schneideinrichtung 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 Bänder 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 der Ausrichteinrichtung 42.A representative example of a cutter for three-sided trimming of products is shown in FIG. 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 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 for controlling the alignment device 42.

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 Bänder 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. Hierfür sind beispielsweise elektronische Kurvenscheiben für den Servoantrieb der Schrittbänder hinterlegt. 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 in dieser Ausführungsform ohne weitere Ausrichtung.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 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. For this example, electronic cams for the servo drive of the crotch bands are deposited. 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 in this embodiment without further alignment.

In Fig. 3 ist die erfindungsgemäße Presseinrichtung 30 dargestellt. Um das Produkt 16 in der Schneidstation zu beschneiden, bewegt sich die Obermesserbrücke 36 mit dem Obermesser 37 taktweise gegen das feststehende Untermesser 40. An der Obermesserbrücke 36 ist der Halter 31 befestigt, in dem die Pressleiste 32 mittels der mit ihr fest verbundenen Führungsbolzen 35a, 35b gelagert ist. Die Führungsbolzen 35a, 35b sind am anderen Ende durch die Brücke 34 miteinander und mit der Kolbenstange eines Pneumatikzylinders 33, der am Halter 31 befestigt ist, verbunden. Zwischen Pressleiste 32 und Halter 31 sind Druckfedern 39 angebracht und bewirken im Ausgangszustand einen festen Abstand zwischen Halter 31 und Pressleiste 32.In Fig. 3, the pressing device 30 according to the invention is shown. In order to trim the product 16 in the cutting station, the upper knife bridge 36 moves with the upper blade 37 intermittently against the fixed lower blade 40. On the upper blade bridge 36, the holder 31 is fixed, in which the pressure bar 32 by means of the guide pin 35a firmly connected to it, 35b is stored. The guide pins 35a, 35b are connected at the other end by the bridge 34 with each other and with the piston rod of a pneumatic cylinder 33 which is fixed to the holder 31. Between pressure bar 32 and holder 31 compression springs 39 are mounted and cause in the initial state a fixed distance between the holder 31 and pressure bar 32nd

In der Schneidbewegung für das Produkt 16 bewegt sich die Obermesserbrücke 36 mit dem Obermesser 37 abwärts. Gleichzeitig bewegt sich auch die Pressleiste 32 mit abwärts, setzt auf das Produkt 16 auf und presst dieses zusammen. In der weiteren Abwärtsbewegung bewegt sich die Pressleiste 32 relativ zum Halter 31 und drückt dabei die Druckfeder 39 zusammen. Durch die Verbindung der Pressleiste 32 mittels der Führungsbolzen 35a, 35b und der Brücke 34 mit der Kolbenstange eines Pneumatikzylinders 33 wird dieser in die Ausfahrposition gezogen. Im unteren Umkehrpunkt oder in der Aufwärtsbewegung der Obermesserbrücke 36 wird der Pneumatikzylinder 33 zu einem steuerbaren Zeitpunkt auf die Funktion "Ausfahren" geschaltet und wirkt durch seine Kraft, die größer sein muss als die Kraft der Druckfedern 39, entgegen der Kraft der Druckfedern 39. Dadurch wird die Pressleiste 32 in der derzeitigen Position gehalten. Bei weiterer Aufwärtsbewegung der Obermesserbrücke 36 ist die Pressung des Produkts 16 dadurch sofort aufgehoben und nicht erst, wenn die Druckfedern 39 entspannen. Durch diesen Zeitgewinn kann das Produkt 16 frühzeitiger abtransportiert werden. Im oberen Umkehrpunkt der Obermesserbrücke 36 wird der Pneumatikzylinder 33 auf die Funktion "Einfahren" geschaltet und bewegt die Pressleiste 32 wieder in ihre Ausgangsposition. Die Steuerung des Pneumatikzylinders 33 erfolgt dabei durch eine Presseinrichtungssteuerung 42, die über die Verbindung zum Austausch von Daten und / oder Steuersignalen 12 mit den übrigen Steuereinheiten 10, 11 und der Maschinensteuerung verbunden ist. Als weitere Variante für die Einleitung der Gegenbewegung zu den Druckfedern sind Hubmagnete, Tauchspulenaktoren oder motorgetriebene Linearantriebe möglich.In the cutting motion for the product 16, the upper knife bridge 36 moves downwardly with the upper knife 37. At the same time, the pressure bar 32 also moves downwards, uses the product 16 and presses it together. In the further downward movement, the pressure bar 32 moves relative to the holder 31 and presses the compression spring 39 together. By connecting the pressure bar 32 by means of the guide pins 35a, 35b and the bridge 34 with the piston rod of a pneumatic cylinder 33, this is pulled into the extended position. At the bottom Turning point or in the upward movement of the upper knife bridge 36, the pneumatic cylinder 33 is switched to the function "extension" at a controllable time and acts by its force, which must be greater than the force of the compression springs 39, against the force of the compression springs 39 Press bar 32 held in the current position. Upon further upward movement of the upper knife bridge 36, the pressure of the product 16 is thereby canceled immediately and not only when the compression springs 39 relax. By this time, the product 16 can be removed earlier. At the upper reversal point of the upper knife bridge 36, the pneumatic cylinder 33 is switched to the "retract" function and moves the pressure bar 32 back into its starting position. The control of the pneumatic cylinder 33 is effected by a press device control 42, which is connected via the connection for the exchange of data and / or control signals 12 with the other control units 10, 11 and the machine control. As a further variant for the initiation of the countermovement to the springs are solenoids, Tauchspulenaktoren or motor-driven linear actuators possible.

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 gegebenenfalls eine seitliche Ausrichtung des Produktes vor dem Beschnitt gewährleisten. 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 Schneideinrichtung 50 mit höheren Produktionsgeschwindigkeiten und damit mit einem kürzeren Takt betreiben zu können, kann nun dank der erfindungsgemäßen Presseinrichtung die Dauer des Pressens des Produkts insbesondere durch Fixierung der Presseinrichtung an der Obermesserbrücke derart angepasst werden, dass für den Transport des Produkts 16 innerhalb der Schneideinrichtung 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, if appropriate, ensure a lateral alignment of the product before trimming. 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. In order nevertheless to be able to operate the cutting device 50 with higher production speeds and thus with a shorter cycle, Now, thanks to the pressing device according to the invention, the duration of pressing the product, in particular by fixing the pressing device on the upper knife bridge can be adjusted so that the same time for the transport of the product 16 within the cutter 50.

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.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.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Antriebsmotor für MesserDrive motor for knives
22
MesserhubeinrichtungKnife lifting device
33
Messerknife
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
Transporteinrichtungtransport means
1010
Steuereinheitcontrol unit
1111
Steuereinheitcontrol unit
1212
Verbindung zum Austausch von Daten und / oder SteuersignalenConnection for exchanging data and / or control signals
1313
Gehäusecasing
1414
mechanisches Getriebemechanical transmission
1515
VorderkantenanschlagLeading-edge stop
1616
Produktproduct
3030
Pressseinrichtungpresser
3131
Halterholder
3232
Pressleistepressure bar
3333
Pneumatikzylinderpneumatic cylinder
3434
Brückebridge
35a, b35a, b
Führungsbolzenguide pins
3636
ObermesserbrückeTop knife bridge
3737
Obermesserupper blade
3939
Druckfedercompression spring
4040
Untermesserlower blade
4242
PresseinrichtungssteuerungPressing device control
5050
Vorrichtungcontraption

Claims (5)

Vorrichtung zum dreiseitigen Beschnitt von Produkten (16) mit einer Hubeinrichtung (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, 37) zum Kopfbeschnitt, Fußbeschnitt und Vorderkantenbeschnitt der Produkte (16) anbringbar sind, und wobei die Vorrichtung (50) eine Presseinrichtung (30) zum Pressen der Produkte (16) vor dem Beschnitt aufweist,
dadurch gekennzeichnet,
dass die Vorrichtung Mittel (33, 42) zum Beenden des Pressens der Presseinrichtung (30) umfasst, derart, dass die Pressdauer innerhalb der Taktdauer der Vorrichtung (50) veränderbar ist.Device for three-sided trimming of products (16) with a lifting device (2) which is designed to be operated in a lifting movement, wherein the lifting movement determines a machine cycle of the device (50), at least knives (3, 37) on the lifting device (2) for the head trimming, foot trimming and leading edge trimming of the products (16) are attachable, and wherein the device (50) comprises a pressing device (30) for pressing the products (16) before trimming,
characterized,
in that the device comprises means (33, 42) for terminating the pressing of the pressing device (30), such that the pressing time is variable within the cycle time of the device (50). Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet,
dass die Vorrichtung (50) eine Transporteinrichtung (9) umfasst, die das Produkt (16) in eine erste Schneidposition und von einer ersten Schneidposition in eine zweite Schneidposition innerhalb einer Transportdauer bringt.Device according to claim 1,
characterized,
in that the device (50) comprises a transport device (9) which brings the product (16) into a first cutting position and from a first cutting position into a second cutting position within a transport time. Vorrichtung nach Anspruch 2,
dadurch gekennzeichnet,
dass die Vorrichtung (50) eine Presssteuerung (42) umfasst, wobei die Presssteuerung (42) die Pressdauer der Pressens der Presseinrichtung (9) derart bestimmt, dass sich bei einer Verkürzung der Taktdauer der Hubbewegung der Hubeinrichtung (2) die Transportdauer der Produkte (16) im Wesentlichen nicht erhöht.Device according to claim 2,
characterized,
that the device (50) comprises a compression controller (42), wherein the press controller (42) determines the pressing time of pressing the pressing means (9) such that at a shorter cycle duration of the lifting movement of the lifting device (2) the transport time of the products ( 16) is essentially not increased. Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet,
dass die Presseinrichtung (30) an der Hubeinrichtung (2) befestigt ist und die Presseinrichtung (30) Mittel (33, 42) zum Zeitweisen abschalten der Presseinrichtung (30) zum Beenden des Pressens umfasst, insbesondere indem die Mittel (33, 42) eine Pressleiste (32) zum Pressen des Produkts (16) auf der Hubeinrichtung (2) fixiert.Device according to claim 1,
characterized,
in that the pressing device (30) is fastened to the lifting device (2) and the pressing device (30) comprises means (33, 42) for temporarily switching off the pressing device (30) for ending the pressing, in particular by the means (33, 42) having a Press bar (32) for pressing the product (16) on the lifting device (2) fixed. Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet,
dass an der Mehrzahl der Messer (3, 37) insbesondere die Messer zum Vorderkantenbeschnitt, Kopfbeschnitt, Fußbeschnitt, Mittelbeschnitt oder Trioschnitt, der Vorrichtung (50) eine entsprechend steuerbare Presseinrichtung (30) zugeordnet ist.Device according to claim 1,
characterized,
in that, on the plurality of knives (3, 37), in particular the knives for leading edge trimming, head trimming, foot trimming, center trimming or trimming, the device (50) is assigned a correspondingly controllable pressing device (30).
EP06118640A 2005-08-29 2006-08-09 Trilateral trimmer Not-in-force EP1759820B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005040799A DE102005040799A1 (en) 2005-08-29 2005-08-29 Product e.g. unbound book, cutting device, has pneumatic cylinder and pressing device controller that stop pressing of pressing device in such manner that pressing duration is changed within clock duration of device

Publications (2)

Publication Number Publication Date
EP1759820A1 true EP1759820A1 (en) 2007-03-07
EP1759820B1 EP1759820B1 (en) 2009-11-11

Family

ID=37499562

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06118640A Not-in-force EP1759820B1 (en) 2005-08-29 2006-08-09 Trilateral trimmer

Country Status (5)

Country Link
EP (1) EP1759820B1 (en)
JP (1) JP5052843B2 (en)
CN (1) CN1923474B (en)
AT (1) ATE448059T1 (en)
DE (2) DE102005040799A1 (en)

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CN101139763B (en) * 2007-10-08 2011-03-30 朱威慈 Clean filament trimming device
EP2383083A1 (en) * 2010-04-30 2011-11-02 Heidelberger Druckmaschinen AG Device for cutting products on three sides
EP1782930B1 (en) * 2005-11-02 2012-03-14 Müller Martini Holding AG Device for trimming printed products
ITMI20130009A1 (en) * 2013-01-07 2014-07-08 Atom Spa ADJUSTABLE DEVICE FOR TEMPORARY STABILIZATION OF MATERIALS TO BE RECORDED ON CUTTING TABLES
CN113021480A (en) * 2021-03-02 2021-06-25 山东芯源微电子有限公司 Unloading segmentation device of filmy diffusion source of semiconductor

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EP2147759B1 (en) * 2008-07-24 2013-10-30 Müller Martini Holding AG Method and device for cutting at least one side border of bound printed products
DE102010024771A1 (en) * 2009-12-17 2011-06-22 Heidelberger Druckmaschinen AG, 69115 Cutting and punching device
DE102012005462A1 (en) * 2012-03-20 2013-09-26 Heidelberger Druckmaschinen Ag cutter
DE102012005459A1 (en) * 2012-03-20 2013-09-26 Heidelberger Druckmaschinen Ag cutter
DE102013002410A1 (en) * 2013-02-11 2014-08-14 Heidelberger Druckmaschinen Ag Device for three-sided trimming of products
EP3085502B1 (en) * 2015-04-21 2017-11-01 Müller Martini Holding AG Method for operating an apparatus for performing cutting operations of open formatcards of a printed product

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EP1152310A1 (en) * 2000-05-03 2001-11-07 Heidelberger Druckmaschinen Aktiengesellschaft Cutting device
DE10244377A1 (en) * 2001-10-26 2003-05-08 Heidelberger Druckmasch Ag Infeed apparatus for sheet material article trimmer for e.g. books has servomotor that moves infeed shuttle at same speed as front table within period of time by which front clamp moves through specific distance

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1782930B1 (en) * 2005-11-02 2012-03-14 Müller Martini Holding AG Device for trimming printed products
US8316746B2 (en) 2005-11-02 2012-11-27 Mueller Martini Holding Ag Method and device for trimming print products
CN101139763B (en) * 2007-10-08 2011-03-30 朱威慈 Clean filament trimming device
EP2383083A1 (en) * 2010-04-30 2011-11-02 Heidelberger Druckmaschinen AG Device for cutting products on three sides
ITMI20130009A1 (en) * 2013-01-07 2014-07-08 Atom Spa ADJUSTABLE DEVICE FOR TEMPORARY STABILIZATION OF MATERIALS TO BE RECORDED ON CUTTING TABLES
CN113021480A (en) * 2021-03-02 2021-06-25 山东芯源微电子有限公司 Unloading segmentation device of filmy diffusion source of semiconductor
CN113021480B (en) * 2021-03-02 2024-02-02 山东芯源微电子有限公司 Semiconductor membranous diffusion source blanking cutting device

Also Published As

Publication number Publication date
JP2007062008A (en) 2007-03-15
DE502006005320D1 (en) 2009-12-24
DE102005040799A1 (en) 2007-03-01
CN1923474A (en) 2007-03-07
JP5052843B2 (en) 2012-10-17
EP1759820B1 (en) 2009-11-11
ATE448059T1 (en) 2009-11-15
CN1923474B (en) 2012-02-29

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