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WO1993003990A1 - Dispositif pour la regulation et/ou la commande de differents elements margeurs au voisinage du receveur de feuilles d'une machine a imprimer - Google Patents

Dispositif pour la regulation et/ou la commande de differents elements margeurs au voisinage du receveur de feuilles d'une machine a imprimer Download PDF

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Publication number
WO1993003990A1
WO1993003990A1 PCT/EP1992/001641 EP9201641W WO9303990A1 WO 1993003990 A1 WO1993003990 A1 WO 1993003990A1 EP 9201641 W EP9201641 W EP 9201641W WO 9303990 A1 WO9303990 A1 WO 9303990A1
Authority
WO
WIPO (PCT)
Prior art keywords
sheet
suction
suction roller
suction force
paper
Prior art date
Application number
PCT/EP1992/001641
Other languages
German (de)
English (en)
Inventor
Peter Theobald Blaser
Dieter Hauck
Karl-Hermann Miltner
Anton Rodi
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27202822&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO1993003990(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from DE4201480A external-priority patent/DE4201480C2/de
Priority claimed from DE4220582A external-priority patent/DE4220582A1/de
Application filed by Heidelberger Druckmaschinen Ag filed Critical Heidelberger Druckmaschinen Ag
Priority to DE59202456T priority Critical patent/DE59202456D1/de
Priority to JP50405493A priority patent/JP3210015B2/ja
Priority to EP92916319A priority patent/EP0553321B2/fr
Publication of WO1993003990A1 publication Critical patent/WO1993003990A1/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
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/68—Reducing the speed of articles as they advance
    • B65H29/686—Pneumatic brakes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/02—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles
    • B65H29/04—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles the grippers being carried by endless chains or bands
    • B65H29/041—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles the grippers being carried by endless chains or bands and introducing into a pile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/24—Delivering or advancing articles from machines; Advancing articles to or into piles by air blast or suction apparatus
    • B65H29/245—Air blast devices
    • B65H29/246—Air blast devices acting on stacking devices
    • B65H29/247—Air blast devices acting on stacking devices blowing on upperside of the sheet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H43/00—Use of control, checking, or safety devices, e.g. automatic devices comprising an element for sensing a variable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/30—Suction means
    • B65H2406/35—Other elements with suction surface, e.g. plate or wall
    • B65H2406/352—Other elements with suction surface, e.g. plate or wall facing the edge of the handled material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
    • B65H2515/10—Mass, e.g. mass flow rate; Weight; Inertia
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
    • B65H2515/20—Volume; Volume flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
    • B65H2515/30—Forces; Stresses
    • B65H2515/34—Pressure, e.g. fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/03—Image reproduction devices
    • B65H2801/21—Industrial-size printers, e.g. rotary printing press

Definitions

  • the invention relates to a device for regulating and / or controlling individual control elements in the area of the delivery of a sheet-fed printing press, wherein at least one input device for entering sheet-specific and / or printing press-specific characteristic data and at least one computing device for further use of the characteristic data are provided and wherein a control device is also provided / which causes a format-dependent setting in accordance with the specified characteristic data for individual position elements.
  • a control and regulation device for the sheet feeder of a sheet-fed printing press has already become known.
  • the sheet format, the paper weight and the speed of the machine are entered into a computing device via at least one input device. Format-dependent settings are made according to the input data.
  • the gripper opening curve is set or the suction roller is set according to setpoints / which have been empirically determined for each operating state and are stored in the form of characteristic fields in a storage element.
  • a disadvantage of this invention can certainly be regarded as / that the empirical determinations of the respective setting data depending on the sizes of paper weight and speed are very lengthy.
  • these characteristic curves must be determined by a qualified specialist.
  • the storage of the key data fields still requires a high storage capacity. Problems are also likely to result from / that the characteristic fields contain no continuous curves. Rather, the measurements are carried out with some fixed parameter combinations; the measured values are then interpolated.
  • the present invention is based on the object / to propose a device for controlling and / or regulating the control elements in the sheet delivery section of a sheet-fed printing press / which uses paper-specific and printing-machine-specific characteristic data to set the setting values of the set elements of the sheet Legers determined.
  • the computing device calculates the energy of the sheet arriving in the delivery from the characteristic data / that the computing device furthermore, according to the calculated energy values, the control variables for the suction roll and / or the gripper opening curve and / or the blowing nozzles via the delivery stack in such a way determines / that the energy extraction caused by these elements corresponds essentially to the energy of the sheet arriving at the legeberei ch and that the control device controls the suction roller and / or the gripper opening curve and / or the blowing nozzles via the position stack l in accordance with the calculated values.
  • the computing device calculates the suction force of the suction roll according to the formula
  • Suction force F the control device varies the gripper opening curve max in such a way / that the length of paper / over which the suction force of the suction roller acts / according to the formula
  • the computing device as a function of the energy / with which the sheet arrives in the delivery / the paper length s over which the suction force of the suction roller acts / according to the formula
  • the computing device calculates the setting limit of the maximum possible paper length s / over which the suction force of the max suction roller acts /.
  • s is initially kept constant. When setting s it is taken into account / that the sheet arrives the better the deposit / the longer it is passed through the gripper, ie 7 the shorter s. Only in exceptional cases will the sheet delivery be corrected by changing the paper length s over which the suction force of the suction roller acts / is carried out.
  • input devices are provided / which supply the computing device with information about the respective dye / lacquer, dampening solution and / or powder application on the sheet / and that the computing device has this increase in mass when calculating the energy of the sheet arriving in the delivery.
  • information about the amount of ink applied to the sheet can be obtained via the position of the ink slides.
  • the paint / dampening agent and / or powder application on the sheet can also be easily determined.
  • an input device is provided / via which the printer influences the suction force F of the suction roller or the paper length s_ via which the suction force of the suction roller acts / by means of a correction factor k.
  • the printer is thereby given the opportunity by correcting the Suction power of the suction roller or by correcting the
  • Paper sheet length s is taken into account and that when the setting limit of the suction force F is reached or when the maximum maximum paper length s is reached, the specified correction factor for the max calculation of the paper length s or for the calculation of the
  • Correction factor offers the advantage / that corrections take effect over the entire speed range / whereby there are no discontinuities in the setting values of the setting elements.
  • the found correction factor k which is ok SETTINGS lungs effected in dependence on the predetermined parameters / taken at the end of print job in the memory of the computing device.
  • the stored value is then automatically adopted as a default for a follow-up order with the same parameters / so that a new correction of the settings of the suction roller or the gripper opening curve is not or only slightly necessary.
  • control device controls the device in such a powder / that the applied depending on the engine speed per unit area quantity of powder is constant. It is further provided / that the computing device calculates the load applied to a bow amount of powder depending on the Endstapel God. For example, the amount of powder applied to the sheet can decrease linearly from the bottom edge of the stack to the top edge of the stack. Because the pressure on the lower sheet is significantly higher than on the upper one / this prevents the sheets from sticking together in the lower region of the stack.
  • control device can be supplied with data about the mass distribution of a printed sheet via the input device and that the control device controls the blower nozzles / that a pressure distribution is generated over the surface of the sheet / which with the mass distribution of the Arc correlates.
  • the blowing nozzles are controlled by the control device in such a way / that the pressure distribution corresponds to the real areal mass distribution of the sheet / the sheet can be deposited on the stack precisely and quickly.
  • the tray can also be carried out / that starting / which eccentrically / quickly find their way from the first stored location typically If the air under the bow outward.
  • the B las air nozzles acting on the sheet from above can possibly be supported by suction devices arranged on the side of the stack.
  • the areal mass distribution can use the rect Rechenvorri be accurately determined / when this / are supplied to the inking / Pudei- and / or lacquer application the data on the Pandadick ⁇ .
  • the information about the color distribution can be determined via the position of the ink fountain keys. It is also advantageous / if the surface of the sheet is divided into matrix-like F surface elements to determine the mass distribution and for these surface elements the mass of the color / lacquer, dampening solution and powder minus the evaporation or powder loss is determined in addition to the paper weight becomes.
  • Devices for measuring the weight of the stack before printing and after printing can be installed as auxiliary devices.
  • the setting of a pressure distribution corresponding to the mass distribution by means of the blowing nozzles can be carried out in a variety of ways, depending on the design. So it is possible / to vary the amount of blown air, the number of activated blowing nozzles and the direction of the blowing action depending on the known sheet and machine-specific data.
  • a blown air device is provided above the stack, which has air outlet nozzles distributed in matrix form over the surface of a sheet / wherein the nozzles are individually supplied with blown air by means of the control device. It is therefore possible / at the nozzles / which act on an area of the sheet / which is to be deposited first / to let blow air escape earlier than with the remaining nozzles. For example, the nozzles are switched off in rows starting from the rear edge in the direction of the front edge.
  • Fig. 1 is a schematic side view of the legeberei chs a sheet-fed rotary printing press and Fig. 2 is a sketched representation of the quantities calculable by means of the method according to the invention.
  • a sheet delivery 1 is a not shown in a schematic side view
  • Gripper bars 3 run over the U steering wheels 4 / 5.
  • the Gripper bridges convey the sheets 6 in the direction of the delivery stack 7.
  • the sheets are braked by the suction roller 9 as soon as the sheet 6 is released by the gripper bridges 3 above the delivery stack 7.
  • the Grei bridge 3 are controlled via the Grei opening curve 10.
  • the sheet 6 is pressed down on the delivery stack 7 by means of the blowing nozzles 11.
  • the tray of the sheet 6 on the delivery stack 7 should take place / the braking force F of the suction roll 9 and the effective braking distance s are dimensioned so / that upon reaching the trailing edge of the delivery pile 7, the kinetic energy of the sheet 6 is at least very small, ideally in this way. This prevents / that the sheet hits the stacking stops 8 too hard / which would damage the sheet 6.
  • the setting of the suction roll and / or the Grei ferö Stammskurve is controlled so / that this condition is always met.
  • the sheet 6 is guided by the gripper bridge 3 over the suction roller 9.
  • the suction roller 9 is connected to a vacuum source, not shown in the drawing.
  • the suction force F of the suction roller 9 is adjustable. As long as the sheet 6 is guided by the gripper bridges 3, it moves at machine speed. If the sheet 6 is released from the gripper bridge 3 / due to the suction force F of the suction roller 9, the sheet 6 is braked.
  • S denotes the paper length of the sheet 6, over which the suction force F of the suction roller 9 acts. Under Taking into account the coefficient of friction ⁇ , the energy / which is applied by the suction roller 9 for braking the sheet 6 and thus for extracting the energy from the sheet 6 / according to the formula
  • this removal of the energy from the sheet is equal to the kinetic energy 1/2 * m * v 2 of the sheet 6 arriving in the outfeed area of a sheet-fed rotary printing press.
  • the suction roller itself may also turn. Only in the case / that the suction roller stands / marks the paper length of the sheet 6 behind the suction roller 9. If the suction roller 9 rotates in the direction of paper movement or against the direction of the paper movement / then the circumferential distance of the suction roller 9 from the time of opening of the Gripper bridges 3 until the time / at which the sheet 6 has passed the suction roller 9 / are taken into account. By this circumferential distance, the paper length s of the sheet 6 behind the suction roller 9 must be reduced when rotating in the direction of the paper and increased when rotating against the direction of the paper.
  • the data required for the calculation / such as the mass of the sheet or its length / width / thickness and density / as well as the speed information are fed to a computer 13 via an input device 12. This input is made either by the operating personnel or via appropriate measuring points on the printing press itself. For example, the paper thickness can be determined using the pressure input and the declaring height adjustment. Format-dependent information can be obtained on the basis of the drawing mark position or by means of the ink zone element. The speed of the sheet 6 arriving at legeberei chs is easily determined from the speed of rotation of the printing press.
  • Information about the ink application in the individual printing units / which may be taken into account for the correction of the mass m of the sheet 6 / can be determined from the position of the ink zone scraps.
  • the computer can also be provided with the amount of lacquer, dampening solution or powder applied to the sheet.
  • the calculated suction force F of the suction roll 9 ferö Stammskurve at a fixed setting of the Grei 10 does not lead / so the Whyperso ⁇ is given nal via the input device 12, the possibility of an optimum delivery of the sheet 6 / the Influence suction force F of the suction roller 9 via a correction factor k. If the setting limit of the suction force F of the suction roller 9 is reached / max when the speed v is increased, the computer 13 also takes this correction factor into account when calculating the paper length s. Of course, s can also be influenced directly by the correction factor k.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Controlling Sheets Or Webs (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Discharge By Other Means (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Catching Or Destruction (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)

Abstract

En particulier dans la plage des vitesses de machine élevées, il faut veiller tout particulièrement au dépôt de la feuille imprimée sur la pile du receveur de feuilles. La présente invention a pour but de proposer un dispositif pour la commande et/ou la régulation des éléments margeurs au voisinage du receveur de feuilles d'une machine à imprimer des feuilles. En utilisant des données caractéristiques spécifiques au papier et à la machine à imprimer, les valeurs de réglage des éléments margeurs du receveur de feuilles sont calculées de telle manière que la feuille arrive approximativement à vitesse nulle au-dessus de la pile de réception des feuilles imprimées.
PCT/EP1992/001641 1991-08-16 1992-07-18 Dispositif pour la regulation et/ou la commande de differents elements margeurs au voisinage du receveur de feuilles d'une machine a imprimer WO1993003990A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE59202456T DE59202456D1 (de) 1991-08-16 1992-07-18 Einrichtung zur regelung und/oder steuerung einzelner stellelemente im auslegerbereich einer druckmaschine.
JP50405493A JP3210015B2 (ja) 1991-08-16 1992-07-18 印刷機の排紙装置範囲に設けられた個々の調整エレメントのコントロールおよび／または制御のための装置
EP92916319A EP0553321B2 (fr) 1991-08-16 1992-07-18 Dispositif pour la regulation et/ou la commande de differents elements margeurs au voisinage du receveur de feuilles d'une machine a imprimer

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DEP4127095.9 1991-08-16
DE4127095 1991-08-16
DEP4201480.8 1992-01-21
DE4201480A DE4201480C2 (de) 1992-01-21 1992-01-21 Einrichtung zum Ablegen von bedruckten Bogen auf einen Stapel
DEP4220582.4 1992-06-24
DE4220582A DE4220582A1 (de) 1991-08-16 1992-06-24 Einrichtung zur regelung und/oder steuerung einzelner stellelemente im auslegerbereich einer druckmaschine

Publications (1)

Publication Number Publication Date
WO1993003990A1 true WO1993003990A1 (fr) 1993-03-04

Family

ID=27202822

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1992/001641 WO1993003990A1 (fr) 1991-08-16 1992-07-18 Dispositif pour la regulation et/ou la commande de differents elements margeurs au voisinage du receveur de feuilles d'une machine a imprimer

Country Status (6)

Country Link
EP (1) EP0553321B2 (fr)
JP (1) JP3210015B2 (fr)
AT (1) ATE123471T1 (fr)
CA (1) CA2093360C (fr)
DE (1) DE59202456D1 (fr)
WO (1) WO1993003990A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0749927A1 (fr) * 1995-06-22 1996-12-27 Grapha-Holding Ag Procédé pour l'optimisation du rendement d'un dispositif faisant des produits reliés par des feuilles imprimés et des supplements
EP0872342A3 (fr) * 1997-04-17 1999-05-19 MAN Roland Druckmaschinen AG Système aspiration et/ou soufflage pour une machine d'impression
EP1201428A3 (fr) * 2000-10-26 2007-04-18 Koenig & Bauer Aktiengesellschaft Dispositif de guidage de feuilles dans des machines d'impression pour assister au transport des feuilles

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19730042C2 (de) * 1997-07-14 2003-06-12 Roland Man Druckmasch Vorrichtung zur Steuerung einer Bogenführung in einer Bogendruckmaschine
DE10000308A1 (de) * 2000-01-05 2001-07-12 Heidelberger Druckmasch Ag Luftleitsystem in einer Bogendruckmaschine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0243661A1 (fr) * 1986-04-30 1987-11-04 Heidelberger Druckmaschinen Aktiengesellschaft Machine à imprimer avec au moins une unité d'impression

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0243661A1 (fr) * 1986-04-30 1987-11-04 Heidelberger Druckmaschinen Aktiengesellschaft Machine à imprimer avec au moins une unité d'impression

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0749927A1 (fr) * 1995-06-22 1996-12-27 Grapha-Holding Ag Procédé pour l'optimisation du rendement d'un dispositif faisant des produits reliés par des feuilles imprimés et des supplements
US6175775B1 (en) 1995-06-22 2001-01-16 Grapha-Holding Ag Method for optimizing the production output of an apparatus processing flat items
EP0872342A3 (fr) * 1997-04-17 1999-05-19 MAN Roland Druckmaschinen AG Système aspiration et/ou soufflage pour une machine d'impression
EP1201428A3 (fr) * 2000-10-26 2007-04-18 Koenig & Bauer Aktiengesellschaft Dispositif de guidage de feuilles dans des machines d'impression pour assister au transport des feuilles

Also Published As

Publication number Publication date
CA2093360A1 (fr) 1993-02-17
EP0553321A1 (fr) 1993-08-04
CA2093360C (fr) 1998-12-15
JPH06504023A (ja) 1994-05-12
DE59202456D1 (de) 1995-07-13
EP0553321B1 (fr) 1995-06-07
EP0553321B2 (fr) 1999-08-18
JP3210015B2 (ja) 2001-09-17
ATE123471T1 (de) 1995-06-15

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