WO2009015773A1 - Procédé de réalisation de pièces de matériau plat découpées, formant des flancs, à partir de feuilles de matériau plat séparées et presse de découpe rotative pour la mise en oeuvre dudit procédé - Google Patents

Procédé de réalisation de pièces de matériau plat découpées, formant des flancs, à partir de feuilles de matériau plat séparées et presse de découpe rotative pour la mise en oeuvre dudit procédé Download PDF

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Publication number
WO2009015773A1
WO2009015773A1 PCT/EP2008/005805 EP2008005805W WO2009015773A1 WO 2009015773 A1 WO2009015773 A1 WO 2009015773A1 EP 2008005805 W EP2008005805 W EP 2008005805W WO 2009015773 A1 WO2009015773 A1 WO 2009015773A1
Authority
WO
WIPO (PCT)
Prior art keywords
flat material
sheets
station
workstation
suction belt
Prior art date
Application number
PCT/EP2008/005805
Other languages
German (de)
English (en)
Inventor
Reinhard Raueiser
Original Assignee
WINKLER+DüNNEBIER AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by WINKLER+DüNNEBIER AG filed Critical WINKLER+DüNNEBIER AG
Publication of WO2009015773A1 publication Critical patent/WO2009015773A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/22—Feeding articles separated from piles; Feeding articles to machines by air-blast or suction device
    • B65H5/222—Feeding articles separated from piles; Feeding articles to machines by air-blast or suction device by suction devices
    • B65H5/224—Feeding articles separated from piles; Feeding articles to machines by air-blast or suction device by suction devices by suction belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H11/00—Feed tables
    • B65H11/007—Feed tables with front stop arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H7/00—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles
    • B65H7/02—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors
    • B65H7/06—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors responsive to presence of faulty articles or incorrect separation or feed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/20—Location in space
    • B65H2511/24—Irregularities, e.g. in orientation or skewness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/50—Occurence
    • B65H2511/52—Defective operating conditions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/50—Timing
    • B65H2513/512—Starting; Stopping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/176—Cardboard
    • B65H2701/1764—Cut-out, single-layer, e.g. flat blanks for boxes

Definitions

  • the present invention relates to a method for producing useful flat material blanks from individual sheets of flat sheets and to a rotary die for carrying out the method.
  • the flat material blanks are, in particular, folding carton blanks consisting of cardboard or paperboard for the subsequent production of folding cartons, for example pharmaceutical folding cartons.
  • DE 101 56 664 A1 discloses a rotary die-cutter for producing use of forming flat material blanks from individual sheets of flat material.
  • This rotary punch has an acceleration station for accelerating the flat material sheets in the form of a feed device, which feeds the flat sheets of paper to a first work station for punching an inner cutout out of the flat material blank. In a subsequent second workstation, the outer contour of the flat material blanks is punched out.
  • a separate depanelling station comprising an intake and storage cylinder and a guide plate, the flat material blanks are automatically table separated from the remaining skeleton of the respective flat material sheet.
  • the known rotary die has the disadvantage that the distance between the feed device of the acceleration station and the first workstation and the distance between the first workstation and the second workstation must always be smaller than the length of the flat material sheet, otherwise no transport of the flat material sheets between the acceleration station and the first workstation or between the first workstation and the second workstation is guaranteed. Consequently, not all formats of flat material sheets can be processed with the known rotary die.
  • a sheet-fed rotary printing press is known from DE 10 2004 058 598 A1, which has a rotary punching station for punching out flat material blanks from previously printed flat material sheets.
  • the sheets of flat material in those areas of the machine in which register-accurate transport is required transported by rollers or gripper rollers. Therefore, there is also a comparatively high risk of register inaccuracy occurring at the respective transfer points between the transport rollers.
  • the suction belt can consist of a single perforated suction belt in a conventional manner or be formed by a plurality of suction belts running parallel to one another. It is also conceivable to sequentially arrange two or more suction belts in the transport direction of the flat material sheets.
  • the inventors of the present invention have recognized that a register-accurate transport of the flat material sheets between the acceleration station and the
  • An advantage of the present invention is that any format lengths of the sheets of sheet can be processed. Since the suction belt leads the flat material sheets directly into the working gap between the work rolls of the work station, there is another advantage in that the risk of register fluctuation is only given in the area of the transfer point at which the flat material sheets are delivered from the acceleration station to the suction belt. Compared with the state of the art, in which gripper rollers are used for register-accurate transport of the flat material sheets, this already represents a halving of the number of transfer points, at which register fluctuations can typically occur.
  • the sheets of sheet material may be transported along a straight line transport path from the accelerator station to the workstation. Since the cardboard or cardboard forming the sheets of flat material for producing the flat material blanks is relatively rigid in comparison to paper, the straight-line transport of the flat material blanks in the region between accelerating tion station and workstation, in which it depends on register accuracy, particularly advantageous.
  • the register accuracy requires that the suction belt keep the flat sheets of the work station clock-accurate - i. in the rotation stroke of the work rolls - supplies, but does not necessarily require that the suction belt itself must comply with a certain circulation position relative to the work rolls. This is in contrast to the transport gripper rollers used in the prior art which, due to their circumferentially arranged gripper, must maintain a certain rotational position relative to the work rolls of the work station, i. must rotate as clock rollers in the working cycle of the rotary die.
  • the rotary die according to the invention preferably has a register monitoring and control unit for monitoring flat material sheets located on the suction belt for registration accuracy and for regulating rotary work tools located in the workstation as a function of a possibly detected register fluctuation. If a register fluctuation is detected, the speed of the work rolls of the workstation can be readjusted according to the detected register fluctuation to restore the desired register accuracy in the workstation. In this case, a corresponding adjustment of the rotational speed of the suction belt is not required, which would necessarily be the case in the case of the use of transport rapier rollers instead of the suction belt. The regulation of register accuracy is therefore considerably simplified according to the invention.
  • the register monitoring and control unit may preferably, in addition to the function of monitoring the registration accuracy of the flat material sheets, also assume the function of misalignment monitoring, within the scope of which On the suction belt located flat sheets are monitored for any fault or skew and at least the acceleration station is turned off immediately in case of a detected misalignment.
  • the register monitoring and control unit may preferably, in addition to register monitoring of the sheets of sheet material and misfeed monitoring, perform an idle monitoring in which the presence of a steady stream of successive sheets of flat material on the suction belt is monitored and thus somewhat obstructed Idling the rotary die can be determined. With this function, sheet defects or sections caused in particular by the absence of one or more sheets can be detected in the stream of flat material sheets passing through the rotary die and resulting idle sections.
  • the register monitoring and control unit can preferably also assume the function of LJ monitoring of the suction belt for register accuracy in addition to the register monitoring of the flat material sheets themselves, the misalignment monitoring and the idling monitoring. If register inaccuracy is detected, then the drive of the suction belt is readjusted as a function of the register inaccuracy in order to restore the register accuracy of the circulating movement of the suction belt.
  • the work station of the rotary die in the work station of the rotary die according to the invention not only the production step of punching the flat material blanks from the flat material sheets, but also the
  • the 3-trennung ie the separation of the punched flat material blanks from a resulting in the punching residual material of the respective flat material sheet.
  • the rotary die according to the invention can have not only one, but optionally two or more workstations.
  • a rotary punch with exactly two workstations according to the invention thus has at least two suction belts, namely one between the acceleration station and the first workstation and another between the first workstation and the second workstation.
  • the first workstation can be, for example, a braille embossing station for embossing braille into the flat material blanks and the second workstation can be a combined stamping and blanking station, by means of which the production step of punching the flat material blanks out of the Flat sheet is feasible and in addition the punched flat material blanks are separable from a resulting in the punching residual material of the flat material sheets.
  • the present invention makes it possible to continuously transport the sheets of sheet material from the accelerating station to the last workstation in a straight line. Unnecessary bends of the relatively rigid cardboard or cardboard can be advantageously avoided in this way, so that the production speed of the rotary die according to the invention can be increased in comparison to the prior art. In particular, it is possible to from the acceleration station to the last workstation to transport in a straight line in a horizontal plane.
  • Fig. 1 A schematic side view of an embodiment of the rotary die according to the invention
  • FIG. 2 shows a plan view of a part of an embodiment of a suction belt for use in the rotary die according to the invention.
  • Fig. 3 a plan view of a flat material sheet with drawn
  • Fig. 1 shows a rotary die 1 according to the invention in a schematic side view. It comprises a known Schuppenstrommleger 7, which has a magazine 8 for providing stacked flat sheet B and a Schuppenstrom makeupband 9. For the sake of simplicity, only two flat material sheets B are shown in FIG. The flat material sheets B located in the magazine 8 can already be printed, for example with the presentation of the pharmaceutical folding boxes to be produced later from the flat material blanks.
  • the inclined shingled conveyor belt 9 provides a shingled stream of flat sheet B available.
  • the acceleration station 2 comprises one or more swingably driven gripper 10 and a in Fig. 1 rotatably driven in the clockwise takeover roll 11.
  • the gripper 10 engages each leading edge of the next delivered from the shingled conveyor belt 9 flat material sheet B, accelerates it to tact speed and finally gives it to the clockwise rotating Bogenüber fortunewalze 11 from.
  • the sheet transfer roller 11 transfers the sheet of flat material B taken over by the gripper 10, in turn, to a suction belt conveyor 12 which contains a perforated suction belt 5 of the type shown in FIG.
  • a suction belt conveyor 12 which contains a perforated suction belt 5 of the type shown in FIG.
  • the suction belt 5 is a continuous around several guide rollers suction belt, which is driven at clock speed.
  • the perforation holes 13 shown in FIG. 2 ambient air is drawn in in a manner known per se in order to securely hold the flat material sheets B taken over by the sheet transfer roller 11 on the surface of the suction belt 5.
  • the retention of the flat material sheet B on the suction belt 5 takes place exclusively due to the suction air effect. There is no mechanical gripper or the like required for holding and transporting the flat sheet B.
  • suction belt 5 instead of a single suction belt 5, to provide two or more suction belts that are comparatively thin compared to the suction belt 5, which are arranged behind one another in the viewing direction of FIG. 1 and extend parallel to each other in the transport direction of the flat material sheets B.
  • the suction straps can in turn be perforated for sucking in ambient air and / or ambient air for holding the flat material sheets B is sucked through the spaces between adjacent suction straps.
  • the suction belt 5 of the suction belt transport device 12 finally delivers the flat material sheets B to a Braille writing station 4, which contains two rotating work rolls 14, 15.
  • a Braille writing station 4 which contains two rotating work rolls 14, 15.
  • the nip between the work rolls 14, 15 in Fig. 1 from right to left takes place at predetermined locations of the flat material sheet B, the impressing of Braille, for example, with instructions for the use of a drug to be packaged in the later drug carton.
  • another Saugbandtransport 180 connects, which contains a perforated suction belt 6 of the type shown in Fig. 2.
  • the suction belt 6 takes over the nip between the work rolls 14, 15 of the Braille writing station 4 leaving flat sheets B and holds them as well as the suction belt 5 exclusively due to the suction force caused by the holding force.
  • the suction belt 6 has no mechanical gripper or the like for holding the flat material sheets B.
  • the suction belt 6 can also be replaced by two or more suction straps.
  • the contour K of the flat material blanks Z shown in FIG. 3 is cut out.
  • a residual material comprising a skeleton R and in Fig. 3 hatched shown inner cutouts I.
  • the Vorbrüche V shown in Fig. 3 are broken lines or embossed, along which are made in the context of the later Faltschachtelher ein folding.
  • the so-called Togethertrennung ie the separation of the flat material blanks Z of the residual material R and I.
  • the finished flat material blanks Z are fed by means of the work roll 18 to a storage roller 21.
  • the combined punching and blanking station 3 additionally functions as an embossing station for embossing creases in the flat material blanks Z.
  • embossing station for embossing creases in the flat material blanks Z.
  • the storage roller 21 finally deposits the flat material blanks Z taken over by the work roll 18 in stacks on a storage grid 22 which deposits the stacks of finished flat material blanks Z in FIG. 1 down on a conveyor belt device 23, which stores the stacks in FIG transported to the left.
  • the flat material sheets B between the acceleration station 2 and the working station 3 are transported continuously in a straight line from right to left. Exactly this distance in the rotary die 1 forms the area in which the flat sheets B must be transported in register.
  • the transporting of the flat material sheets B by means of the suction belts 5 and 6 in this section minimizes the number of transfer points in which the flat material sheets B have to be transferred from one transport element to a subsequent transport element, and thus the probability of undesirable register fluctuations occur.
  • the transport of flat sheets B which is only straightforward in the register-relevant section, avoids a bending of the flat material sheets B made of cardboard or cardboard which is relatively rigid compared with paper, as required in the prior art. This reduces the risk of occurrence of Damage to the final products to be produced in the form of flat material blanks Z and thus increases their quality.
  • the flat sheets B in the rotary die 1 return a shorter distance than would be the case if they were deflected several times.
  • a register monitoring and control unit can be provided.
  • the example, electro-optical unit monitors whether the transported on the suction belt 5 and / or the suction belt 6 flat sheets B are transported in register in relation to the work rolls 14, 15 and the work rolls 18, 19. If this is not the case, the unit can adjust the speed of the work rolls 14, 15 or 18, 19 in such a way via the machine control, i. accelerate or retard their respective angular velocity at short notice so that a register-accurate processing of the respective flat material sheet B takes place in the respective nip.
  • the acceleration or deceleration of the angular velocity is preferably carried out when there is a gap between two successive flat material sheets B of the stream of sheet material B passing through the rotary die 1 in the region of the nip of the work rolls 14, 15 and 18, 19.
  • a corresponding readjustment of the suction belts 5 and 6 may be unnecessary, provided that they only have to circulate at clock speed, but in relation to the work rolls 14, 15 and 18, 19 no specific relative rotational position, i. Register accuracy, must comply.
  • the register monitoring and control unit can additionally monitor any misalignment of flat sheets B on the suction belt 5 and / or the suction belt 6.
  • An incorrect position of a flat material sheet B is present when its leading edge exceeds a maximum permissible inclined position relative to the transport direction through the rotary die 1 - in FIG. 1 from right to left. If a misplacement occurs, the rotary die 1 is immediately shut down by the machine control in order to avoid a large number of rejects.
  • An alternative embodiment of the rotary die cutter according to the invention is conceivable if the flat material blanks Z to be produced are not to be provided with Braille embossing. Then, in the rotary punch 1 shown in FIG.
  • both the braille writing station 4 and the suction belt transporting device 16 or the suction belt transporting device 12 can be dispensed with without substitution.
  • the remaining suction belt 5 or 6 brings the advantages of the invention described above with it.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)

Abstract

L'invention concerne un procédé de réalisation de pièces de matériau plat découpées, formant des flancs, à partir de feuilles de matériau plat séparées au moyen d'une presse de découpe rotative, comprenant un poste d'accélération destiné à accélérer les feuilles de matériau plat à une vitesse cadencée et au moins un poste de travail rotatif permettant la mise en oeuvre d'étapes de réalisation des pièces découpées à partir des feuilles de matériau plat. L'objectif de l'invention est de perfectionner ce procédé de sorte que les pièces de matériau plat découpées peuvent être réalisées quel que soit le format des feuilles de matériau plat et la probabilité qu'une imprécision de repérage apparaisse entre le poste d'accélération et le poste de travail est minimisée. A cet effet, le transport des feuilles de matériau plat du poste d'accélération au poste de travail est uniquement effectué par l'intermédiaire d'au moins une bande aspirante, sur laquelle les feuilles de matériau plat sont maintenues au moyen de l'air aspiré.
PCT/EP2008/005805 2007-07-28 2008-07-16 Procédé de réalisation de pièces de matériau plat découpées, formant des flancs, à partir de feuilles de matériau plat séparées et presse de découpe rotative pour la mise en oeuvre dudit procédé WO2009015773A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007035436.5 2007-07-28
DE200710035436 DE102007035436A1 (de) 2007-07-28 2007-07-28 Verfahren zum Herstellen Nutzen bildender Flachmaterialzuschnitte aus vereinzelten Flachmaterialbögen sowie Rotationsstanze zur Durchführung des Verfahrens

Publications (1)

Publication Number Publication Date
WO2009015773A1 true WO2009015773A1 (fr) 2009-02-05

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PCT/EP2008/005805 WO2009015773A1 (fr) 2007-07-28 2008-07-16 Procédé de réalisation de pièces de matériau plat découpées, formant des flancs, à partir de feuilles de matériau plat séparées et presse de découpe rotative pour la mise en oeuvre dudit procédé

Country Status (2)

Country Link
DE (1) DE102007035436A1 (fr)
WO (1) WO2009015773A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104290128A (zh) * 2014-09-24 2015-01-21 福州大学 一种连杆驱动的纸花盆打孔机及其使用方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104118007B (zh) * 2014-07-24 2015-11-18 福州大学 一种纸花盆打孔装置及其方法

Citations (6)

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Publication number Priority date Publication date Assignee Title
US3383991A (en) * 1965-12-06 1968-05-21 Harris Intertype Corp Sheet material forming apparatus
DE19836211A1 (de) * 1998-08-11 2000-02-17 Christian Schade Rotationsschneideverfahren für Folienbahnen und dergleichen sowie Vorrichtung zur Durchführung des Verfahrens
DE10156664A1 (de) * 2001-11-17 2003-06-05 Bernd Mende Vorrichtung zum rotierenden Stanzen von Nutzen aus Einzelbögen
DE102004058601A1 (de) * 2003-11-26 2005-08-04 Schober Gmbh Werkzeug- Und Maschinenbau Vorrichtung zur veredelnden Bearbeitung von bogenförmigen Substraten
US20070095463A1 (en) * 2004-08-27 2007-05-03 Denovus Llc Method and apparatus for die cutting and making laminate articles
US20070173396A1 (en) * 2004-02-12 2007-07-26 Klaus Wittmaier Rotary cutting apparatus comprising a placing system for the orderly sorting of cuts

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DE1199785B (de) * 1962-07-16 1965-09-02 William F Ward Entnahmevorrichtung fuer jeweils den untersten von uebereinander gestapelten Bogen oder Zuschnitten aus Karton
GB1205847A (en) * 1967-03-30 1970-09-16 Sunds Ab Improvements relating to a box-making machine
GB1154757A (en) * 1967-05-02 1969-06-11 Bowater Packaging Ltd A Device for Slotting Sheet Material
DE102006013397A1 (de) * 2006-03-23 2007-10-04 WINKLER + DüNNEBIER AG Vorrichtung und Verfahren zum Ausschneiden von Flachmaterialzuschnitten aus Flachmaterialbogen

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3383991A (en) * 1965-12-06 1968-05-21 Harris Intertype Corp Sheet material forming apparatus
DE19836211A1 (de) * 1998-08-11 2000-02-17 Christian Schade Rotationsschneideverfahren für Folienbahnen und dergleichen sowie Vorrichtung zur Durchführung des Verfahrens
DE10156664A1 (de) * 2001-11-17 2003-06-05 Bernd Mende Vorrichtung zum rotierenden Stanzen von Nutzen aus Einzelbögen
DE102004058601A1 (de) * 2003-11-26 2005-08-04 Schober Gmbh Werkzeug- Und Maschinenbau Vorrichtung zur veredelnden Bearbeitung von bogenförmigen Substraten
US20070173396A1 (en) * 2004-02-12 2007-07-26 Klaus Wittmaier Rotary cutting apparatus comprising a placing system for the orderly sorting of cuts
US20070095463A1 (en) * 2004-08-27 2007-05-03 Denovus Llc Method and apparatus for die cutting and making laminate articles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104290128A (zh) * 2014-09-24 2015-01-21 福州大学 一种连杆驱动的纸花盆打孔机及其使用方法

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