EP0625411B1 - Verbesserte Papierschneidvorrichtung - Google Patents

Verbesserte Papierschneidvorrichtung Download PDF

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Publication number
EP0625411B1
EP0625411B1 EP94490015A EP94490015A EP0625411B1 EP 0625411 B1 EP0625411 B1 EP 0625411B1 EP 94490015 A EP94490015 A EP 94490015A EP 94490015 A EP94490015 A EP 94490015A EP 0625411 B1 EP0625411 B1 EP 0625411B1
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EP
European Patent Office
Prior art keywords
tool
sheet
cutting
carrier plate
backing cylinder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP94490015A
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English (en)
French (fr)
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EP0625411A1 (de
Inventor
Jean Pierre Cuir
Gérard Cuir
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Individual
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Individual
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Publication of EP0625411A1 publication Critical patent/EP0625411A1/de
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Publication of EP0625411B1 publication Critical patent/EP0625411B1/de
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Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/20—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/40—Cutting-out; Stamping-out using a press, e.g. of the ram type
    • B26F1/42—Cutting-out; Stamping-out using a press, e.g. of the ram type having a pressure roller
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/141—With means to monitor and control operation [e.g., self-regulating means]
    • Y10T83/148—Including means to correct the sensed operation
    • 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
    • Y10T83/162—With control means responsive to replaceable or selectable information program
    • Y10T83/173—Arithmetically determined program
    • Y10T83/18—With operator input means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/465—Cutting motion of tool has component in direction of moving work
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/465—Cutting motion of tool has component in direction of moving work
    • Y10T83/4757—Tool carrier shuttles rectilinearly parallel to direction of work feed
    • 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
    • Y10T83/525—Operation controlled by detector means responsive to work
    • Y10T83/536—Movement of work controlled
    • 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
    • Y10T83/788—Tool pair comprises rotatable anvil and fixed-type tool
    • 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
    • Y10T83/929—Tool or tool with support
    • Y10T83/9309—Anvil
    • Y10T83/9312—Rotatable type

Definitions

  • the present invention relates to the cutting one by one of semi-rigid sheets, in particular of cardboard and particularly of corrugated cardboard. More specifically, it relates to an improved device, specially adapted to perform this cutting at optimized rates according to the format of the sheet to be cut, and the kinematics of the machine.
  • the cutting of a semi-rigid sheet, in particular from corrugated cardboard, is carried out on conventional cutters using a cutting tool and a support surface.
  • the cutting tool comprises blades or threads perpendicular to the bearing surface when the sheet is pressed between it and the cutting tool so that the threads pass through the sheet and make the corresponding cut.
  • the cutting tool is positioned flat on a tool-holder plate and the bearing surface is a flat surface.
  • the cutting is carried out by applying the bearing surface against the tool-holder plate on which the sheet to be cut has been positioned.
  • the pressure which must be brought into play in a cutting machine of this type is very high, being able to go up to several thousand kilonewton.
  • the cutting tool is mounted on the periphery of a cylinder and the bearing surface is itself a cylindrical surface.
  • the cutting is carried out by introducing the sheet between the two cylinders driven in rotation.
  • the pressure involved is lower because the cutting is done in a linear fashion along the line of tangency between the two cylinders.
  • shaping the cutting tool so that it is adapted to the exterior surface of a cylinder is very delicate.
  • problems can arise when the sheet to be cut has a large thickness because the cutting threads being mounted radially, there is a difference in peripheral distance between the upper part and the lower part of two adjacent threads.
  • a third type of cutter known for example from document US-A-3,765,286 the cutting tool is mounted on a tool-holder plate while the bearing surface is a cylindrical surface.
  • the tool holder plate must, in this case, be animated by an alternating back-and-forth movement making it possible to move each sheet one after the other under or on the support cylinder from a position of feeding the cut sheet to an evacuation position of the cut sheet.
  • the cutter since the sheet to be cut comes from a previous station, either a printer or a feeder, the cutter also includes feeding means making it possible to precisely introduce said sheet on the cutting tool when moving the one. -this under the support cylinder.
  • these feeding means consist of two sheet transport systems.
  • the first known as the transfer box, receives the sheet from the upstream machine, which can be a feeder or a printer for example. It has a constant linear speed equal to that of these machines.
  • the second known as the launching box, receives the sheet from the transfer box and introduces it between the tool holder plate and the support cylinder. At the start, it therefore has a speed equal to that of the transfer case, then it accelerates the sheet in order to give it a speed equal to that of the support cylinder according to the same acceleration law as the tool-holder plate.
  • the first object of the invention is to provide a cutter according to the third type mentioned above which overcomes the drawbacks mentioned above, namely for which the stroke of the support plate can vary depending on the format of the sheet and which avoids any offset in the positioning of the sheet on the cutting tool.
  • the electronic control circuit is programmed so that in the first art the amplitude of the reciprocating movement is a function of the parameter, in the second part the linear speed of the tool holder plate is constantly equal to the peripheral linear speed of the cylinder. support as long as the cutting tool is in contact with said support cylinder, thirdly the difference which is observed between the theoretical position and the actual position of the predetermined element of the sheet, detected by the marking is corrected by a correlative variation in the drive of the engine equipping the launching means.
  • the invention it is therefore possible to reduce the stroke of the tool-holder plate when the format of the sheet to be cut and therefore the length of the cutting tool is less than the maximum dimension. provided by the manufacturer. This correlatively increases the production rate of the cutter or, keeping the same rate, reduces the electrical power consumed.
  • the sheet which is either ahead or behind when it leaves the previous station sees its feeding speed reduced or accelerated so that it is introduced on the cutting tool very precisely under the conditions required. We therefore obtain an automatic correction of the positive or negative difference from the previous item.
  • the predetermined element is the front or rear edge of the sheet, in this case the tracking system preferably consists of a position sensor.
  • the predetermined element is a given printed area of the sheet; in this case the tracking system preferably consists of a camera, capable of detecting said printed area.
  • the cutting tool includes a system allowing the sheet to be held in place during cutting and then ejecting it when the tool-holding plate is in the second position.
  • This system works using flexible tubing which functions as suction cups during the forward movement and which functions as ejection tubing by sending compressed air when the tool-holder plate is in the second position.
  • the cut sheet, which is ejected, is taken up by a discharge device.
  • the electronic control circuit is programmed so that the tool-holder plate can be stopped in its second position for a determined time t which is introduced as an operating parameter in the input means.
  • the downtime is of the order of a few hundredths of a second.
  • Another difficulty encountered in cutters of the third type resides in the premature wear of certain members when the cutter turns idle, that is to say when there is no sheet on the cutting tool during displacement from the first to the second position of the tool-holder plate.
  • the cutting forces cause a slight deformation of the support cylinder and the tool-holder plate
  • it is usual to compensate for this deformation by ensuring that the space between the tool-holder plate and the cylinder d support is slightly less than the height of the cutting blades. Therefore, when the cutter turns empty, the force generated to cause this deformation is transmitted only to the cutting blades, which causes their wear.
  • the support cylinder is provided with a flexible coating, it is this which would suffer premature wear due to the action of the cutting blades.
  • the tracking system which is arranged in front of the support cylinder and connects to the electronic control circuit is programmed to keep the tool-holding plate in its first position in the event that it does not detect a sheet.
  • the cutting tool does not come into contact with the support cylinder when no sheet is detected by the tracking system in front of said cylinder.
  • Cutters of the third type are most often integrated into complete installations comprising a feeder and possibly printers.
  • the cutter drive mechanism is only part of the entire drive mechanism of the complete installation. Therefore it is not currently possible to have in a facility a cutter that would not have been designed to work with the rest of the facility.
  • the transfer means are equipped with an independent electronic servo motor which is connected to the electronic circuit.
  • control means are mounted on the sheet movement members at the previous station, said control means being connected to said electronic circuit. The latter is programmed so that on the one hand the speed of the transfer means is constantly equal to the speed of the sheet leaving the displacement members of the previous station and on the other hand the launching means are controlled as a function of said speed. so that the sheet has the same speed as the peripheral linear speed of the support cylinder when it arrives on the cutting tool.
  • the improved cutter of the invention can be arranged in an existing installation.
  • the cutter receives the sheets at the linear speed which is imposed by the previous station without this affecting the desired rate of the cutter.
  • the installation 1 shown in FIG. 1 is a printing and cutting installation one by one of sheets of corrugated cardboard.
  • This installation 1 comprises from upstream to downstream in the direction of movement of the sheet successively a feeder 2, a printer 3, the cutter 4, a box for evacuation of cutting waste 5 and the stacking station and reception 6.
  • the cutter comprises a transfer box 7 and a launch box 8, a support cylinder 9, a tool holder plate 10, which is driven in an alternating movement back and forth according to arrow F for the forward movement and the arrow F 'for the return movement.
  • the tool-holder plate 10 has longitudinal racks, not shown, and its reciprocating movement is obtained by the rotation of toothed wheels meshing in said racks. Said toothed wheels are driven by at least one motor 11 with electronic servo-control, of the brushless type.
  • the waste evacuation box 5 comprises a suction channel 12 at the immediate outlet of the cylinder 9 and a poses conveyor 13, which is placed beyond the suction channel 12 and which consists of rollers 14 arranged transversely by relative to the direction of movement of the sheet and separated from each other by free spaces.
  • suction means according to a first circuit leading to the suction channel 12, said first circuit corresponding to the evacuation of cutting waste 15, and a second suction circuit emerging in the poses conveyor 13.
  • the rollers 14 are rotated by means not shown. This rotation, as will be explained further in the following description, allows the evacuation of the poses towards the reception and stacking station 6.
  • FIGS. 2A to 2D illustrate the different stages of the operation of the cutter 4 when the tool-holder plate 10 passes from its first front position (FIG. 2A) to its second rear position (FIG. 2D).
  • a cutting tool 16 On the tool-holder plate 10 is fixed a cutting tool 16.
  • This cutting tool 16 On this cutting tool 16 are vertically mounted threads or cutting blades 17 according to the configuration of the profile to be cut.
  • This cutting tool 16 also includes tubing suction 18 and ejection bellows 19, which are distributed in each of the zones corresponding to a pose 20. This term designates each of the sheet portions which result from the cutting of the initial sheet.
  • the tool-holder plate 10 When the tool-holder plate 10 is in the first position, the most upstream of the cutting machine, it is located, like the cutting tool 16 under the transfer box 7 and under the launch box 8.
  • a cutting sheet 21 was fed from the previous station, for example the printing machine 3 in the example illustrated in FIG. 1. This sheet 21 is located astride the transfer box 7 and on the launching mat 8. It is directed obliquely towards the lower surface of the cylinder 9.
  • the tool-holder plate 10 has started to move in the direction of the arrow F, the sheet 21 has itself moved under the action of the launch box 8 and the cylinder 9 has itself rotated by a certain angle. All these movements have been synchronized so that the front edge 21a of the sheet 21 comes precisely be applied to the front edge 16a of the cutting tool 16 when said sheet comes into contact with the outer surface of cylinder 9 .
  • This first step between the first position illustrated in the figure 2A and this intermediate position in FIG. 2B constitutes the step of launching the tool-holder plate 10.
  • the tool-holder plate 10 When it arrives in the position in FIG. 2B the tool-holder plate 10 must have acquired a speed which must be equal to the linear speed of the outer surface of the cylinder 9 which comes into contact with the sheet 21. The latter must also have acquired, thanks to the launching box 8, the same speed of movement.
  • the tool-holder plate 10 must keep the same speed of movement up to the position it has in FIG. 2C, that is to say when the rear edge 16b of the cutting tool 16 leaves the surface outside of cylinder 9.
  • the last step of the forward movement of the tool-holder plate 10 ends in the second position illustrated in FIG. 2D in which the cutting tool 16 is placed under the rollers 14 of the laying conveyor 13 after having passed under the channel d 'suction 12.
  • This phase corresponds to the deceleration of the tool holder plate 10 until it stops and before the return movement in the direction of arrow F'.
  • the height of the cutting tool 16, in line with the cutting blades is equal to the spacing between the outer surface of the support cylinder 9 and the tool holder plate 10 so that the sheet 21 gradually penetrates the cutting blades when it is aligned with the axis of rotation 22 of the cylinder 9.
  • the passage of the cutting tool 16 supporting the sheet 21 cut under the suction channel 12 allows the evacuation of cutting waste 15 through said channel 12.
  • the cut sheet which is on the cutting tool 16 when the tool holder plate 10 is in the second position illustrated in FIG. 2D is ejected from said cutting tool 16 by blowing compressed air through the ejection bellows 19 while the suction which was carried out through the pipes 18 is cut.
  • This ejection combined with the suction implemented in the conveyor 13 allows the plates 20 to be pressed onto the rollers 14. These are put in rotation so as to evacuate said blanks 20 towards the receiving and stacking station 6.
  • the tool-holder plate 10 is driven in its reciprocating movement by at least one independent motor with electronic servo-control with two directions of rotation 11.
  • the cutting machine 4 comprises means 23 for controlling the rotation of the support cylinder 9.
  • the motor 11, of the brushless type, and the control means 23 are connected to an electronic control circuit 24 which comprises input means 25 being for example in the form of a keyboard.
  • the control means 23 may for example consist of an encoder mounted on the rotation shaft of the cylinder 9.
  • the operator enters, before the start of its manufacture, the operating parameters in the input means.
  • the parameters there is at least the length l of the cutting tool 16, which in fact corresponds to the format of the sheet to be cut.
  • the electronic control circuit 24 is programmed to meet the following condition.
  • the linear speed of the tool-holder plate must constantly be equal to the peripheral linear speed of the support cylinder 9 as long as the cutting tool 16 is in contact with the support cylinder 9. This condition can be achieved by instant monitoring of the rotation of the support cylinder 9 by the control means 23 and thanks to the knowledge of the length l of the cutting tool.
  • the electronic control circuit 24 is programmed so as to vary the amplitude of the return movement of the tool holder plate 10 as a function of the length l of the cutting tool 16. This amplitude will be all the more small compared to the maximum amplitude for which the machine has been designed, that the length l of the cutting sheet will deviate from the maximum cutting length L authorized by the machine.
  • the electronic control circuit 24 is programmed so that the drive motor 11 drives the tool-holder plate 10 during the return movement of the latter according to a simple law composed of an acceleration, immediately followed by a deceleration , so that the duration of the return movement is less than that of the outward movement. It is therefore possible to increase the production rate, without modifying the cutting conditions, during the forward movement of the tool holder plate 10.
  • the cutting machine 4 also includes a system for locating the position of a predetermined element of the sheet 21, which is located upstream of the support cylinder 9. It is for example a position sensor 26 capable of detecting the front edge 21a or optionally back of the sheet 21 to be cut.
  • the transfer box 7 as well as the launch box 8 are each driven by a motor 27, 28 respectively, with electronic servo-control of the brushless type.
  • the two motors 27, 28 are also connected to the electronic control circuit 24.
  • the electronic control circuit 24 finds, from the information transmitted to it by the sensor 26, that there is a positive or negative difference between the theoretical position of the front edge 21 a and the actual position of said edge, the electronic circuit 24 correlatively controls the actuation of the motor 28 driving the launch box 8 so as to correct this variation so that the front edge 21 a is perfectly in synchronism with the tool-holder plate 10 according to the configuration of FIG. 2B.
  • the electronic control circuit 24 is programmed so that a stop of the tool-holder plate 10 is provided when it is in the second position illustrated in FIG. 2D. It is during this stopping time that the stopping of the suction through the pipes 18 will be implemented on the one hand and the supply of compressed air through the ejection bellows 19 on the other hand.
  • the fact that this occurs while the cutting tool 16 is stopped under the rollers 14 of the poses conveyor 13 guarantees perfect ejection of said poses 20 and their resumption by the conveyor 13.
  • the downtime t which is entered by the operator in the input means 25 as an operating parameter is chosen on the order of a few hundredths of a second.
  • the electronic control circuit 24 is programmed to maintain the tool-holder plate 10 in its first position illustrated in FIG. 2A in the case where the sensor 26 does not detect the presence of a sheet.
  • the tool holder plate 10 remains in its first position and does not carry out its forward movement. return. This avoids an operation of the vacuum cutter, such an operation causing premature wear of the cutting blades or possibly of the flexible material constituting the external surface of the cylinder 9.
  • the sheet movement members 21 at the station preceding the cutter 4 are provided with control means 31 which are connected to the electronic control circuit 24.
  • the transfer box 7 and the launch box 8 are driven by motors with electronic servo-control of the brushless type, respectively 27, 28 which are themselves connected to the electronic control circuit 24.
  • Said circuit is programmed so that the speed of the sheet leaving the previous station and which is detected by the control means 31 is constantly equal to the speed of the sheet on the transfer box 7.
  • the motor 28 driving the launch box 8 is controlled as a function of the aforementioned speed so that the sheet is launched towards the support cylinder 9 so that it has, when it reaches the position which is illustrated in FIG. 2B, the same speed as the peripheral linear speed of the cylinder support 9.
  • control means 31 consist for example of an encoder mounted on the axis of rotation of the plate cylinder 32.
  • This particular arrangement makes it possible to make the operation of the cutter 4 completely independent of the speed of supply of the sheets 21 from the previous station.
  • this speed is not likely to vary over time, it may be sufficient, without needing the control means 31, to introduce into the input means 25 an operating parameter corresponding to an indication relating to the speed of movement of the sheet leaving the previous station.
  • the setting of the speed of the transfer case 7 and of the launch case 8 is done automatically as a function of the value of said parameter.

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

Claims (6)

  1. Vorrichtung (4) zum Schneiden einzelner, halbsteifer Blätter (21), insbesondere aus Wellpappe, die ein auf einer Werkzeughalter-Platte (10) befestigtes Schneidwerkzeug (16) und einen Andruckzylinder (9) aufweist, wobei die Werkzeughalter-Platte (10) in eine wechselnde Hin- und Herbewegung zwischen einer ersten Position, in der das Schneidwerkzeug (16) sich vor dem Andruckzylinder (9) befindet, und einer zweiten Position, in der es sich hinter dem Andruckzylinder (9) befindet, versetzt wird, wobei das Blatt (21) über dem Schneidwerkzeug (16) eingeführt wird, wenn die Werkzeughalter-Platte die erste Position verlassen hat, bei seinem Durchlauf unter dem Andruckzylinder (9) hindurch geschnitten wird, sodann von dem Schneidwerkzeug (16) entfernt wird, wenn die Werkzeughalter-Platte (10) sich in der zweiten Position befindet,
    dadurch gekennzeichnet, daß sie, da das Blatt (21) von der vorherigen Arbeitsstation (3) aus mit Hilfe von Transportmitteln (7) zugeführt, sodann auf der Werkzeughalter-Platte (10) positioniert und mit Hilfe von Eingabemitteln (8) unter dem Andruckzylinder (9) eingeführt wird, in Verbindung mit einem elektronischen Steuerkreis mit Mitteln zur Eingabe von Betriebsparametern, darunter mindestens die Länge des Schneidwerkzeugs, aufweist:
    a) mindestens einen unabhängigen, elektronisch gesteuerten Motor (11) mit zweifacher Drehrichtung, der die Werkzeughalter-Platte (10) in ihrer Hin- und Herbewegung antreibt,
    b) einen unabhängigen, elektronisch gesteuerten Motor (28), der die Eingabemittel (8) antreibt,
    c) Steuermittel (23) für die Drehbewegung des Andruckzylinders (9),
    d) ein System zur Positionserkennung (26) eines vorher bestimmten Teils des Blattes (21), wobei das genannte System sich vor dem Andruckzylinder (9) befindet,
    und daß der elektronische Steuerkreis (24) dergestalt programmiert ist, daß erstens die Amplitude der Hin- und Herbewegung eine Funktion des Parameters l ist, zweitens die lineare Umfangsgeschwindigkeit der Werkzeughalter-Platte (10) konstant gleich der linearen Geschwindigkeit des Andruckzylinders (9) ist, solange das Schneidwerkzeug (16) mit dem genannten Andruckzylinder (9) in Kontakt ist, und drittens die Abweichung, die zwischen der theoretischen Position und der wirklichen Position des vorher bestimmten Teils des Blattes (21) festgestellt und durch das Erkennungssystem (26) erkannt wird, durch eine korrelative Änderung im Antrieb des zu dem Eingabemittel (8) gehörenden Motors (28) korrigiert wird.
  2. Vorrichtung nach Anspruch 1,
    dadurch gekennzeichnet, daß in Anbetracht dessen, daß der vorher bestimmte Teil die Vorderkante (21a) oder Hinterkante des Blattes ist, das Erkennungssystem aus einem Positionssensor (26) besteht.
  3. Vorrichtung nach Anspruch 1,
    dadurch gekennzeichnet, daß in Anbetracht dessen, daß der vorher bestimmte Teil ein zuvor festgelegter und bedruckter Bereich des Blattes ist, das Erkennungssystem aus einer Kamera besteht.
  4. Vorrichtung nach einem der Ansprüche 1 bis 3,
    dadurch gekennzeichnet, daß der elektronische Steuerkreis (24) dahingehend programmiert ist, die Werkzeughalter-Platte (10) in ihrer ersten Position zu halten, wenn das Erkennungssystem kein Blatt erkennt.
  5. Vorrichtung nach einem der Ansprüche 1 bis 4,
    dadurch gekennzeichnet, daß der elektronische Steuerkreis (24) so programmiert ist, daß die Werkzeughalter-Platte (10) in ihrer zweiten Position während einer bestimmten Zeit t angehalten wird, die als Betriebsparameter in die Eingabemittel eingegeben wird.
  6. Vorrichtung nach einem der Ansprüche 1 bis 6,
    dadurch gekennzeichnet, daß die Transportmittel (7) mit einem unabhängigen, elektronisch gesteuerten Motor (27) ausgerüstet sind, der mit dem elektronischen Steuerkreis (24) verbunden ist, daß die Steuermittel (31) an den Vorschubmitteln (32) des Blattes (21) an der vorhergehenden Arbeitsstation (3) angebracht sind, wobei die genannten Steuermittel (31) mit dem genannten elektronischen Steuerkreis (24) verbunden sind, und daß dieser letztere so programmiert ist, daß einerseits die Geschwindigkeit der Transportmittel (7) konstant gleich groß ist wie die Geschwindigkeit des aus den Vorschubmitteln (32) der vorhergehenden Arbeitsstation (3) austretenden Blattes, und andererseits die Eingabemittel (8) in Abhängigkeit von der genannten Geschwindigkeit gesteuert werden, so daß die Geschwindigkeit des Blattes (21) gleich groß ist wie die lineare Umfangsgeschwindigkeit des Andruckzylinders, wenn das Blatt die Werkzeughalter-Platte (10) erreicht.
EP94490015A 1993-04-16 1994-04-14 Verbesserte Papierschneidvorrichtung Expired - Lifetime EP0625411B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9304721 1993-04-16
FR9304721 1993-04-16

Publications (2)

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EP0625411A1 EP0625411A1 (de) 1994-11-23
EP0625411B1 true EP0625411B1 (de) 1995-10-25

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Family Applications (2)

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EP94490015A Expired - Lifetime EP0625411B1 (de) 1993-04-16 1994-04-14 Verbesserte Papierschneidvorrichtung
EP94490014A Expired - Lifetime EP0620088B1 (de) 1993-04-16 1994-04-14 Papierschneidvorrichtung

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP94490014A Expired - Lifetime EP0620088B1 (de) 1993-04-16 1994-04-14 Papierschneidvorrichtung

Country Status (5)

Country Link
US (1) US5657677A (de)
EP (2) EP0625411B1 (de)
CN (2) CN1114925A (de)
DE (2) DE69400029T2 (de)
ES (2) ES2081725T3 (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6418827B1 (en) * 1994-04-13 2002-07-16 Bussey, Iii Harry Perforating machine
IT1314838B1 (it) 2000-05-31 2003-01-16 Fosber Spa Dispositivo e metodo per il cambio d'ordine in un sistema di tagliolongitudinale di un materiale nastriforme
FR2810268B1 (fr) * 2000-06-16 2002-10-25 Cuir Installation de decoupe feuille a feuille avec dispositif de lancement assurant la fonction de calage en position des feuilles
ITMO20020015A1 (it) * 2002-01-24 2003-07-24 Sarong Spa Dispositivo per il taglio trasversale in spezzoni di una striscia continua di contenitori
ES2341541T3 (es) * 2004-10-12 2010-06-22 Fosber S.P.A. Dispositivo para corte longitudinal de un material en banda continua, tal como carton ondulado.
JP5410890B2 (ja) * 2009-09-08 2014-02-05 Ｊｕｋｉ株式会社 テープ材の繰り出し長さの補正方法
JP5582913B2 (ja) * 2010-08-06 2014-09-03 キヤノン株式会社 防振機能を有する単焦点レンズ
IT1403981B1 (it) * 2011-02-17 2013-11-08 Kemet Electronics Italia S R L Apparato di taglio
CN103552109B (zh) * 2013-11-13 2016-05-11 常德金鹏印务有限公司 一种纸张的加工装置及其加工工艺
CN105922627B (zh) * 2016-04-28 2018-06-01 芜湖倍思科创园有限公司 一种可调节型包装箱用纸板切割装置
CN111993778B (zh) * 2020-09-04 2021-06-08 温岭市荣华装璜包装股份有限公司 一种根据纸板厚度精确控制压辊转速的印刷切割设备
CN112193541B (zh) * 2020-09-26 2022-04-15 上海信谊天平药业有限公司 一种板装药物的智能定距剪切及交叉垛码装置
CN113334509A (zh) * 2021-05-11 2021-09-03 宋和珠 一种装潢业用圆形复合木板制造机器

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FR2067701A5 (de) * 1969-11-13 1971-08-20 Cuir Jean Pierre
DE2022508A1 (de) * 1970-05-08 1971-12-02 Miller Printing Machinery Co Durch Abwandlung einer bogenverarbeitenden Flachsatz-Hochdruckmaschine erzeugte Stanz- oder Praegemaschine fuer Karton,Pappe od.dgl.
US3765286A (en) * 1972-08-21 1973-10-16 F Vossen Cutting apparatus
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FR2572323A1 (fr) * 1984-10-30 1986-05-02 Automatisme Tech Electroni Procede et dispositif pour traiter en un point determine un materiau en deplacement continu.
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JPH0584696A (ja) * 1991-09-25 1993-04-06 Mitsubishi Heavy Ind Ltd ロータリシヤ

Also Published As

Publication number Publication date
EP0625411A1 (de) 1994-11-23
DE69400542D1 (de) 1996-10-24
ES2094630T3 (es) 1997-01-16
DE69400029D1 (de) 1995-11-30
ES2081725T3 (es) 1996-03-16
EP0620088B1 (de) 1996-09-18
EP0620088A1 (de) 1994-10-19
US5657677A (en) 1997-08-19
DE69400542T2 (de) 1997-02-20
CN1114925A (zh) 1996-01-17
CN1117420A (zh) 1996-02-28
DE69400029T2 (de) 1996-04-18

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