EP0976509B1 - Méthode ansi que dispositif pour découper longitudinalement un matériau en bande - Google Patents

Méthode ansi que dispositif pour découper longitudinalement un matériau en bande Download PDF

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Publication number
EP0976509B1
EP0976509B1 EP99112151A EP99112151A EP0976509B1 EP 0976509 B1 EP0976509 B1 EP 0976509B1 EP 99112151 A EP99112151 A EP 99112151A EP 99112151 A EP99112151 A EP 99112151A EP 0976509 B1 EP0976509 B1 EP 0976509B1
Authority
EP
European Patent Office
Prior art keywords
cutting edge
carrier
machine frame
distance
fixed
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
EP99112151A
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German (de)
English (en)
Other versions
EP0976509A2 (fr
EP0976509A3 (fr
Inventor
Robert Maier
Franz Reisinger
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.)
Voith Patent GmbH
Original Assignee
Voith Paper Patent GmbH
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 Voith Paper Patent GmbH filed Critical Voith Paper Patent GmbH
Publication of EP0976509A2 publication Critical patent/EP0976509A2/fr
Publication of EP0976509A3 publication Critical patent/EP0976509A3/fr
Application granted granted Critical
Publication of EP0976509B1 publication Critical patent/EP0976509B1/fr
Anticipated expiration legal-status Critical
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
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2628—Means for adjusting the position of the cutting member
    • B26D7/2635—Means for adjusting the position of the cutting member for circular cutters
    • 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
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D2007/2657—Auxiliary carriages for moving the tool holders
    • 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
    • Y10T83/768—Rotatable disc tool pair or tool and carrier
    • Y10T83/7809—Tool pair comprises rotatable tools
    • Y10T83/7822—Tool pair axially shiftable
    • Y10T83/7826—With shifting mechanism for at least one element of tool pair
    • 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
    • Y10T83/768—Rotatable disc tool pair or tool and carrier
    • Y10T83/7809—Tool pair comprises rotatable tools
    • Y10T83/7847—Tool element axially shiftable
    • 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
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8821—With simple rectilinear reciprocating motion only
    • Y10T83/8822—Edge-to-edge of sheet or web [e.g., traveling cutter]
    • 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
    • Y10T83/9457—Joint or connection
    • Y10T83/9464—For rotary tool
    • Y10T83/9469—Adjustable
    • Y10T83/9471—Rectilinearly

Definitions

  • the invention relates to a method for slitting a material web running in the direction of travel, in which at least one knife unit on a carrier in one Machine frame moved transversely to the direction of travel and the position of your cutting edge in the machine frame becomes.
  • the invention further relates to a device for longitudinal cutting of a machine running in the running direction Material web with at least one knife unit, which has a cutting edge and arranged on a carrier is in a machine frame across the Running direction is displaceable, and with a measuring device to determine the position of the cutting edge.
  • the invention is based on a paper web described as an example of a material web. she is but with all other material webs that are in the course their production in longitudinal strips of predetermined width must be cut, applicable. examples are Plastic or metal foils or cardboard sheets. In some cases, slitting also serves only for straightening one that runs parallel to the running direction Longitudinal edge. In this case, too Invention application.
  • Paper webs are often produced in widths that are too big for the later user.
  • Modern paper machines produce paper webs in widths of up to 10 m
  • Users such as printers, use paper webs up to a maximum of 3.8 m at present.
  • the desired width is even lower, namely in the range between 0.8 and 2 m. It is therefore necessary to close the paper web before winding Subdivide winding rolls into several partial webs.
  • This Longitudinal cutting is carried out with every cutting line a knife unit, usually in a "silhouette" works and by a circular top knife on one side of the paper web and one too circular, lower knife on the other side of the Paper web is formed, usually at least one of these knives is powered.
  • the touch plane forms between the upper knife and lower knife Cutting edge. The cutting edge usually falls with one end of the lower knife together.
  • the width of the partial paper webs desired by the user is given relatively precisely.
  • the tolerances are here in the range of ⁇ 0.25 mm.
  • the cutting edges of the knife unit be positioned with the appropriate accuracy can.
  • the positions of each Cutting edges can then be on this Read the measuring tape. If you put these positions into one programmable logic controller can be entered then move to other positions, for example when changing the cutting plan. This process will also called manual calibration.
  • DE 34 17 042 C2 shows a similar method in which on the one hand the position of the carrier in the machine frame determined, but also the position the cutting knife edge on the respective carrier.
  • the individual carriers determine this position sequentially passed sensors in the machine frame are stationary, with those leading past necessary time between a marking on the carrier and the cutting edge a statement about the distance of the Cutting edge allowed from this mark.
  • This approach has the advantage that one in operation permanently about the position of the beams in the machine frame can be informed.
  • the absolute position of the However, the cutting edge is still faulty. This results in on the one hand by the fact that this position is only relative can be determined. Second, changes, that occur during operation, for example through Wear, not detected.
  • the cutting knives of a knife unit usually have to be reground from time to time. After every Regrinding therefore requires recalibration. In addition, however, arise in the Operation wear and tear that is quite common in the Order of magnitude of the tolerance range.
  • GB 2 290 496 A describes a positioning device for Lower knife in slitting machines.
  • the lower knife are cup-shaped and on a lower knife shaft postponed. You can't go there any closer presented means are determined. After postponing is the position of the cutting edges of the bottom knife initially unknown. To determine the position, move a slide parallel to the lower knife shaft.
  • the carriage carries two optical lasers. Every laser has one Transmitter for a laser beam and a receiver for the reflected laser beam, the laser beams have a relatively small distance from each other, for example 0.1 mm or less. Accordingly, one can by combining the signals from the two lasers, whether the cutting edge is between the laser beams located or not.
  • US 4 607 552 shows a device for automatic Position of a variety of cutters.
  • the Cutting devices can be a material web W in the running direction divide.
  • a knife unit is placed on one Carrier moved transversely to the direction of travel.
  • click on each positioning module electrical control elements and magnetic reference points are provided on a first rail.
  • the system can determine whether the corresponding slide has moved far enough has been.
  • There is a wear detection switch on the carriage of the upper knife provided with a proximity switch, which is controlled by eddy currents, which in the Neighborhood of the upper knife is created around the upper knife to position relative to the lower knife.
  • the invention has for its object the determination to improve the position of the cutting edge.
  • This task is carried out in a method of the type mentioned at the beginning Art solved in that the position of the Cutting edge immediately on the carrier and the position the carrier is determined in the machine frame and the absolute position of the cutting edge in the machine frame by combining these two positions is formed.
  • At least the position of the cutting edge is preferred on the carrier by measuring a distance between the cutting edge and a beam-fixed first Fixed point determined. This approach is preferable because the distance of the cutting edge from the fixed point changes, for example when the Cutting edge due to regrinding of the lower knife relocated.
  • a particular advantage of the invention is that that both positions are determined permanently. So you can use a microprocessor in every program cycle can be read in with a control device is working. Can between individual import processes are quite short times, as is the case with microprocessor-controlled Machines is common. These times but are usually in areas smaller than 1 Second, so that they play no role in practice. By continuously monitoring the positions deviations of the cutting edge from the target position record quickly and compensate if necessary.
  • the object is achieved in a device of the type mentioned Kind solved in that the measuring device two Has transducers, of which a first transducer is arranged on the carrier and the distance the cutting edge to a fixed first fixed point determined, and a second transmitter the distance a second fixed fixed point from one in the machine frame stationary zero point determined.
  • the position of the carrier in the Machine frame can be determined by determining the Distance between a fixed fixed point and the Determine the zero point in the machine frame. Here too achieve high measuring accuracy. If you both Merging measured values results in an extremely precise Positioning. Since this position determination in Operating position and especially during operation Any errors that may occur can follow be quickly compensated.
  • the second transmitter preferably has a stationary one active and a movable passive part on. This means that the second transmitter does not require flexible Connections between the carrier and an evaluation device, which makes the operation easier and that Risk of measurement errors further reduced.
  • the active part is preferably designed as a measuring ruler.
  • a measuring ruler works with a placemark, i.e. the second fixed point, on the beam together.
  • the measuring ruler can be optically, acoustically, magnetically, work electromagnetically or capacitively. It allows determining the position with high accuracy.
  • the two fixed points preferably coincide. This facilitates the evaluation. You need for the calculation the absolute position of the cutting edge Offset more.
  • a comparator with the first is advantageous Sensor connected, which issues an error message, if the distance is below a predetermined value or exceeds. As above in connection with the The method has been explained, it can be used as a relative achieve simple error monitoring, whether the knife is undersized and therefore replaced must become.
  • Material web 3 for example a paper web
  • a carrier 4 which is also referred to as a "carriage" can be.
  • This carrier 4 is transverse on rails 5 slidable to the direction of travel 2. He can do this on Rollers 6 be stored.
  • a circular knife 7 On the carrier 4 there is a circular knife 7, the is driven by a motor 8.
  • the circular knife 7 is on one side, here the top, the Material web 3.
  • a counter knife 9 is arranged on the Circular knife 7 is employed.
  • the counter knife 9 lies under spring force with a relatively small overlap on the end face of the circular knife 7.
  • Circular knife 7 and counter knife 9 thus work together like scissors and create a cutting line 10, the location of which by the position of the cutting edge 11 of the circular knife 7 is defined.
  • the counter knife 9 of course does not hang freely in the Air. It is attached to a similar support, the but is not shown for reasons of clarity.
  • the carrier of the counter knife 9 can be reduced Accuracy can be positioned because of the counter knife 9 here with spring force on the circular knife 7 becomes.
  • the measuring device has a first transducer 12, the position the cutting edge 11 to a fixed point 13 on the carrier (in Fig. 2 shown as a line) determined. Further points the measuring device on a second transmitter, the from a fixed machine frame (of which only the Rails 5 are shown) mounted measuring ruler 14 and a placemark 15 firmly connected to the carrier consists.
  • the measuring ruler 14 is the active part of the second transmitter and the placemark 15 the passive Part. In the present case, the right edge is the placemark 9 the "measuring point".
  • Both position transducers work without contact, for example optical, acoustic, magnetic, electromagnetic or capacitive type and Wise.
  • the operation of the position detection is now to be described with reference to FIG. 2 are explained in more detail. Same parts are provided with the same reference numerals.
  • the web of material 3 is for the sake of clarity in FIG. 2 just as omitted as the carrier for the counter knife 9. Two knife units A, B are shown.
  • the first transducer 12 determines the knife unit A a distance II between the cutting edge 11 and the fixed point 13 (also equal to the right edge the placemark 15).
  • the second transmitter 14, 15 determines a distance I between a zero point 0 and the same fixed point 13. An addition of both distances then provides the removal of the cutting edge 11 to the zero point 0 and thus the exact position of the Cutting edge in the machine frame.
  • the individual distances I-IV are an evaluation device supplied, which is not shown.
  • the evaluation device can also have a comparator who checks whether the distances II, IV exceed a predetermined minimum value. If the Distances II or IV less than or equal to is this minimum value, then the comparator gives one Warning off. It can be used to ensure that a Circular knife 7 with undersize immediately recognized and displayed becomes.
  • the control device mentioned the absolute position of the cutting edge 11 on each Carrier 4 known.
  • the control device must then only ensure that the carrier 4 with its fixed point 13 the corresponding position opposite the measuring ruler Take 14. For this purpose, it can move the carriers 4 and that either via its own drive the carriers or via an external drive the carriers, as is known in itself.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Cutting Devices (AREA)
  • Nonmetal Cutting Devices (AREA)

Claims (9)

  1. Procédé pour découper longitudinalement une bande de matériau (3) se déplaçant dans la direction d'avance (21), dans lequel au moins une unité de coupe est déplacée sur un support (4) dans un bâti de machine (5) transversalement à la direction d'avance et la position de son arête de coupe (11) est détectée dans le bâti de machine (5), caractérisé en ce que la position de l'arête de coupe (11) est détectée directement sur le support (4) et la position du support (4) est détectée dans le bâti de machine et la position absolue de l'arête de coupe (11) dans le bâti de machine est obtenue par la combinaison de ces deux données de position.
  2. Procédé selon la revendication 1, caractérisé en ce qu'au moins la position de l'arête de coupe (11) sur le support (4) est détectée par la mesure d'un éloignement (II, IV) entre l'arête de coupe (11) et un premier point fixe (13) par rapport au support.
  3. Procédé selon la revendication 2, caractérisé en ce que l'on surveille si l'éloignement (II, IV) est au-dessus d'une valeur minimale prédéterminée ou en dessous d'une valeur maximale prédéterminée, et dans ce cas, un message d'erreur est émis.
  4. Procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce que les deux positions sont détectées en permanence.
  5. Dispositif pour découper longitudinalement une bande de matériau (3) se déplaçant dans la direction d'avance (21), comprenant au moins une unité de coupe, qui présente une arête de coupe (11) et qui est disposée sur un support (4), qui peut être déplacé dans un bâti de machine (5) transversalement à la direction d'avance (21), et comprenant un dispositif de mesure pour détecter la position de l'arête de coupe (11), caractérisé en ce que le dispositif de mesure présente deux capteurs de mesure dont un premier capteur de mesure (12) est disposé sur le support (4) et détecte l'éloignement (II, IV) de l'arête de coupe (11) par rapport à un premier point fixe (13) par rapport au support, et un deuxième capteur de mesure (14, 15) détecte l'éloignement (I, II) d'un deuxième point fixe par rapport au support d'une origine (O) fixe dans le bâti de machine (5).
  6. Dispositif selon la revendication 5, caractérisé en ce que le deuxième capteur de mesure (14, 15) présente une partie stationnaire active et une partie mobile passive.
  7. Dispositif selon la revendication 6, caractérisé en ce que la partie active est réalisée sous forme de règle de mesure (14).
  8. Dispositif selon l'une quelconque des revendications 5 à 7, caractérisé en ce que les deux points fixes (13) coïncident.
  9. Dispositif selon l'une quelconque des revendications 5 à 8, caractérisé en ce qu'un comparateur est connecté au premier capteur de mesure (12), lequel émet un message d'erreur lorsque l'éloignement (II, IV) est inférieur ou supérieur à une valeur prédéterminée.
EP99112151A 1998-07-22 1999-06-24 Méthode ansi que dispositif pour découper longitudinalement un matériau en bande Expired - Lifetime EP0976509B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19832871A DE19832871C1 (de) 1998-07-22 1998-07-22 Verfahren und Vorrichtung zum Längsschneiden einer Materialbahn
DE19832871 1998-07-22

Publications (3)

Publication Number Publication Date
EP0976509A2 EP0976509A2 (fr) 2000-02-02
EP0976509A3 EP0976509A3 (fr) 2002-12-04
EP0976509B1 true EP0976509B1 (fr) 2004-02-25

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Application Number Title Priority Date Filing Date
EP99112151A Expired - Lifetime EP0976509B1 (fr) 1998-07-22 1999-06-24 Méthode ansi que dispositif pour découper longitudinalement un matériau en bande

Country Status (3)

Country Link
US (1) US6382066B1 (fr)
EP (1) EP0976509B1 (fr)
DE (2) DE19832871C1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007000685A1 (de) 2007-08-31 2009-03-05 Voith Patent Gmbh Rollenschneidmaschine, insbesondere Längsschneidemaschine

Families Citing this family (8)

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Publication number Priority date Publication date Assignee Title
DE10023210B4 (de) * 2000-05-12 2004-03-11 Wilhelm Bilstein KG Spezialfabrik für Maschinenmesser und Kompressorventile Verfahren zur Positionierung von Untermessern an einer Einrichtung zum Längsteilen einer Materialbahn
DE10034719A1 (de) * 2000-07-17 2002-01-31 Josef Froehling Gmbh Walzwerks Längsteilschere
FI115615B (fi) 2002-08-08 2005-06-15 Metso Paper Inc Menetelmä ja laite paperi- tai kartonkikoneen pituusleikkurin terien aseman kalibroimiseksi
DE202006017387U1 (de) * 2006-11-15 2007-01-11 DIENES WERKE FüR MASCHINENTEILE GMBH & CO. KG Tiefeneinstellung für an einer Längsschneidemaschine angeordnete Messerhalter
FI20085640A0 (fi) * 2008-06-26 2008-06-26 Metso Paper Inc Menetelmä ja laite kuiturainakoneen pituusleikkurien terien aseman kalibroimiseksi
CN102071566B (zh) * 2011-02-28 2012-05-23 南通大东有限公司 半自动毛巾纵裁机
US20140260868A1 (en) * 2013-03-15 2014-09-18 Dienes Corporation Usa Slitting Machine
IT202200020169A1 (it) * 2022-09-30 2024-03-30 Sormec S R L Macchina e relativo procedimento per realizzare imballi

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007000685A1 (de) 2007-08-31 2009-03-05 Voith Patent Gmbh Rollenschneidmaschine, insbesondere Längsschneidemaschine

Also Published As

Publication number Publication date
EP0976509A2 (fr) 2000-02-02
US6382066B1 (en) 2002-05-07
DE59908623D1 (de) 2004-04-01
DE19832871C1 (de) 2000-05-31
EP0976509A3 (fr) 2002-12-04

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