EP0427975A2 - Dispositif de sélection, identification et marquage des feuilles d'essai dans un échantillon pour le contrôle de quantité dans une machine d'impression de feuilles - Google Patents

Dispositif de sélection, identification et marquage des feuilles d'essai dans un échantillon pour le contrôle de quantité dans une machine d'impression de feuilles Download PDF

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Publication number
EP0427975A2
EP0427975A2 EP90120023A EP90120023A EP0427975A2 EP 0427975 A2 EP0427975 A2 EP 0427975A2 EP 90120023 A EP90120023 A EP 90120023A EP 90120023 A EP90120023 A EP 90120023A EP 0427975 A2 EP0427975 A2 EP 0427975A2
Authority
EP
European Patent Office
Prior art keywords
sheets
sheet
control
sample
test
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP90120023A
Other languages
German (de)
English (en)
Other versions
EP0427975A3 (en
EP0427975B1 (fr
Inventor
Manfred Stibaner
Oded Zingher
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.)
Manroland AG
Original Assignee
MAN Roland 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
Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Priority to AT90120023T priority Critical patent/ATE101361T1/de
Publication of EP0427975A2 publication Critical patent/EP0427975A2/fr
Publication of EP0427975A3 publication Critical patent/EP0427975A3/de
Application granted granted Critical
Publication of EP0427975B1 publication Critical patent/EP0427975B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65H33/00—Forming counted batches in delivery pile or stream of articles
    • B65H33/04—Forming counted batches in delivery pile or stream of articles by inserting marker slips in pile or stream
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/02—Arrangements of indicating devices, e.g. counters

Definitions

  • the invention relates to a device on a sheet-fed printing machine according to the preamble of claim 1.
  • quality features are register accuracy, sharpness of details, legibility of writing, possibly gloss, as well as the reproduction and compliance (authenticity) of a (special) color in packaging printing, the reproduction of certain critical color tones in the printing of high-quality advertising material and almost all printed products compliance with radians and printed image lengths for products for automatic further processing (cutting, embossing, folding).
  • sample testing based on qualitative characteristics - procedures and tables according to DIN 40 080 -.
  • the samples thus obtained are then checked for compliance - non-compliance with the agreed quality feature, i.e. the good and the faulty units are counted. Such a counting check is called an attribute check.
  • the decision as to whether a unit (printed sheet) is faulty or not can be made visually or by means of measuring devices along with predetermined limit values.
  • Sampling tests are carried out on the basis of a sample instruction. Sample instructions are given in accordance with the parameters to be taken into account in DIN 40 080. There, the sample size n together with an acceptance number c and a possible rejection number d are tabulated as a function of the lot size N of the AQL (Acceptable Quality Level), an assessment level (normal, reduced, tightened) and a test level.
  • AQL Acceptable Quality Level
  • assessment level normal, reduced, tightened
  • the AQL (here 1.5) is to be understood as a percentage value that errors the tolerable portion units corresponds to a delivery (lots). See also UGRA Notices No. 1, March 1982.
  • a random sample sheet can be taken from the deposited sheet stack after the print run has been carried out.
  • Such a method is tedious and it cannot be verified whether and how the test sheets are distributed over the created edition.
  • Marking devices with which, for example at the instigation of the printer by marking strips, giant signs, certain sheets stacked in the delivery, can be marked and thus later sorted out, make it easier to take a sample sheet.
  • Such devices are known from the GDR documents 55 967, 63 523 and 68 523.
  • Devices for sample sheet removal on the delivery of a sheet printing machine offer a possibility of taking the sheets for random sampling and production control during the production run. Examples of such devices are shown in DE-PS 3 347 778, DE-PS 3 629 937, DE-OS 3 723 589 and DE-GM 8 318 009. These devices ensure that the desired sheet is not deposited on the delivery stack but is collected separately and can be removed by the printer.
  • Marking strips shot into the delivery stack as well as devices for taking out a sample sheet allow a sample sheet to be taken after or during the print run, but, as already mentioned, there is no proof of how the sample and the pressure control are distributed over the print run using control sheets. It is also disadvantageous that the printer determines the "randomness" of the sampling sheet itself.
  • the sheets that are still unprinted from the feeder via the feed table into the printing press which are provided, for example, for the random sample, are identified by means of a printing unit on the feeder.
  • This identification consists, for example, of the information that it is a test sheet for a sample. It is also planned to print on the selected test sheet the serial number with regard to the number of runs, as well as the serial number with regard to the sample size.
  • control device not only selects and identifies test sheets in accordance with a sample for quality assurance, but also identifies and as such control sheets for production control during the print run in accordance with a specifiable rule and control specification.
  • every 100th sheet can be printed with a corresponding piece of information as a control sheet for production control.
  • These sheets then serve as test copies for the printer, after which he assesses the stability of the production run and intervenes accordingly.
  • the printing unit consists, for example, of a printhead unit, as is known from needle or ink printing units of computer accessories.
  • This printing unit is attached to the feeder in the area of a presser foot, for example, such that the information is printed on the rear edge of the sheet close to the rear in the direction of sheet travel.
  • the printing unit is arranged to be displaceable parallel to the rear sheet edge by means of a guide rail, the optimum printing point for the information, for example in a sheet corner, can be selected individually, depending on the subject to be printed.
  • a plurality of printing units can be attached to the guide rail running parallel to the rear sheet edge, in order to then provide further information in the vicinity and along the rear sheet edge, e.g. Date, time, setting data of the printing press (printing speed, how many sheets according to the last regulation), total number of copies, type of sample agreement or the production control regulation or similar.
  • One embodiment of the invention provides for the printing unit to be attached in the region of the front side pull mark. The information is then printed after the sheet has reached the front mark stops and has been aligned at right angles to the front marks by means of the side pull mark.
  • the invention provides that the sheets provided with information in the area of the feeder / investment table or by inserting a paper strip can be made distinguishable from the unmarked sheets in the stack of jibs which is being formed.
  • One embodiment of the invention provides for an optical and / or acoustic signal to sound in addition to the identification in order to cause the printer to remove the test or control sheet immediately from the delivery arm. This prevents the test sheets from being sorted out later, and the sheets can be stored separately.
  • a control device calculates a random distribution with respect to the edition depending on the number of runs entered, the agreed sample agreement or regulation and the machine cycle and forwards corresponding signals to the printing unit connected to it on the feeder and to the marking device on the delivery for the purpose of executing commands. Since the sheet printed with information on the feeder is deposited on the delivery with a delay which is dependent on the machine cycle, the control device continuously receives a signal of the machine cycle, which can be taken from the printing unit of the printing press itself at the drive, the control or via a special sensor. The control device therefore, depending on the random sample distribution calculated with respect to the number of copies, first sends the printing unit on the feeder a signal for printing on a sheet together with the information to be printed.
  • control After the machine cycle-dependent delay, the control provides then direction to a device on the delivery arm to make precisely this sheet distinguishable from the unselected ones, for example by means of a paper strip in the stack being formed.
  • the control device is advantageously a microcomputer e.g. in the form of a personal computer with appropriate interfaces for recording machine data (machine cycle, number of sheets) and for controlling the printing unit (feeder) and (marking device delivery). Such a design can then also perform other machine control tasks such as ink / dampening solution, register, etc.
  • the control device can e.g. have a generator for generating random numbers.
  • the printer detects changes in the print result independently of the test sheets selected and marked by the control device during process monitoring, he can determine a test sheet via a manual triggering device, which is then provided with corresponding information, distinguishable from the other sheets, and is stored in the delivery.
  • an input keyboard with a display device is provided, so that the corresponding sampling agreements / regulations or the corresponding selection criteria for the control sheet selection (production control) can be entered and displayed on a monitor. It is also possible to enter individual sample agreements negotiated between the customer and the print shop and have them carried out.
  • Another feature of the invention provides for the data of the sampling agreements (quality assurance, production control determined by the printer) and further data of the production to be logged. This can be done, for example, on a printer as a hard copy, as well as on a special EDP memory. Then, for example, the run size, sample size, acceptance limit, optional sample specification strictly according to DIN 40 080, agreed quality characteristics, numbers of the the sample (quality assurance) as well as sheets selected for production control, setting data and parameters of the machine, measured values on the printed product, date, time. Such a protocol can then be presented to the customer in connection with the sample to evaluate the print run quality.
  • a favorable embodiment of the invention results if the delivery of the sheet printing machine is provided with an electromagnetically triggerable sample sheet removal device (e.g. DE-OS 3 732 589). Instead of differentiating the selected sheets using inserted paper strips, these sheets are output separately and can be easily removed by the printer. Furthermore, the sample sheet removal device which can be triggered by the control device can be provided with means for collecting and storing the sorted out sample sheets.
  • the delivery of the sheet-fed printing machine can also be equipped with an electromagnetically controllable double-stack delivery. Examples of such double-pile delivery are shown in DE-GM 1 962 536 and DE-OS 2 430 212. In these examples, the sheets are deposited on two different stacks as a function of an actuating command.
  • Fig. 1 shows a sheet printing machine 1, which the sheets to be printed are fed from a feeder stack 2 of a feeder 3 via a feed table 3 '. The printed sheets are then placed on the delivery stack 4 of delivery 5.
  • the control device 6 receives the machine cycle, ie the working speed of the printing machine, for example continuously via a line 7.
  • the current number of sheets can also be supplied to the control device 6, for example via a line 8, for example as a value of a sheet counter present in the printing press.
  • the relevant data for a random sample agreement (quality assurance) or the data for a control sheet marking (production control) can be input to the control device 6 via an input keyboard 9 and a screen device 10.
  • the control device 6 statistically selects test sheets according to the sample agreement, which can be identified as such by means of one (or more) printing units 11 in the vicinity of the rear sheet edge by printing corresponding data.
  • the marked printed sheets are stored in the delivery 5 or by inserting a paper strip by means of a device 12 in the delivery stack 4 for removal from the other sheets.
  • the control device 6 can cause the test sheets to be removed via an optical 13 and / or acoustic signal transmitter 14.
  • the printer can furthermore determine and have control sheets, for example for the pressure monitoring, independently of the selection of the control device 6 during the printing process and thus have them marked.
  • a logging device 16 for example in the form of a printer, creates a log on which the numbers of the sheets selected for the random sample, production control and further data of the printer, for example machine setting data and measured values, are recorded and which serves as a quality assurance certificate.
  • a data storage system 17, for example in the form of RAMs, ROMs, magnetic data carriers, can also store all sample values, control sheets Record data etc. and keep them available for later internal printing purposes.
  • the data storage system 17 can also contain the sample plans of DIN 40 080 in the form of tables, so that with appropriate input / output design via input keyboard 9 and monitor 10, the determination of a sampling device by querying only a little data (number of runs, AQL, type of assessment, test specification) he follows.
  • Fig. 2a the rear, upper part of the feeder stack 2 is shown in perspective with a presser foot 18. Other feeder devices such as pre-blowers, scraper brushes, suction heads etc. are not shown.
  • the printing unit 11 is slidably mounted on a guide rail 19 parallel to the rear edge of the uppermost sheet of the delivery stack 2. Information is then printed on the selected test and control sheets, for example, by a movement which the printing unit 11 itself carries out and / or by a movement which is also emitted by the guide rail 19 by means of a holding device which carries it.
  • FIG. 2 b shows from above a part of a printing sheet 20 which, before being transferred to a printing cylinder, abuts front marks 21 and is laterally aligned with a sheet stop 23 by a side pulling mark 22.
  • the printing unit 11 is attached here by means of a holding device 24 in the area of the side drawing mark and prints the sheet 20 in the short downtime between the lateral alignment and the next transfer.
  • the invention is particularly favorable if the printing press has a double-stack delivery 25, as shown in FIG. 3.
  • This double-stack delivery 25 has two separate stacks, ie a delivery stack 4 for the printed sheets not selected by the control device and a test sheet stack 26.
  • the optional depositing of the sheets on the delivery stack 4 and the test sheet stack is then triggered by the control device 6, for example by an electromagnetically switchable one Gripper opening curve 27 above the test sheet stack 26.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Control Or Security For Electrophotography (AREA)
  • Automatic Analysis And Handling Materials Therefor (AREA)
  • Handling Of Sheets (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Treatment Of Fiber Materials (AREA)
EP90120023A 1989-11-16 1990-10-19 Dispositif de sélection, identification et marquage des feuilles d'essai dans un échantillon pour le contrôle de quantité dans une machine d'impression de feuilles Expired - Lifetime EP0427975B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90120023T ATE101361T1 (de) 1989-11-16 1990-10-19 Vorrichtung zur auswahl, kennzeichnung und markierung von pruefbogen einer stichprobe fuer die qualitaetssicherung bei einer bogendruckmaschine.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3938138 1989-11-16
DE3938138A DE3938138C2 (de) 1989-11-16 1989-11-16 Vorrichtung zur Qualitätssicherung des Auflagendrucks an einer Bogendruckmaschine

Publications (3)

Publication Number Publication Date
EP0427975A2 true EP0427975A2 (fr) 1991-05-22
EP0427975A3 EP0427975A3 (en) 1991-08-14
EP0427975B1 EP0427975B1 (fr) 1994-02-09

Family

ID=6393670

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90120023A Expired - Lifetime EP0427975B1 (fr) 1989-11-16 1990-10-19 Dispositif de sélection, identification et marquage des feuilles d'essai dans un échantillon pour le contrôle de quantité dans une machine d'impression de feuilles

Country Status (3)

Country Link
EP (1) EP0427975B1 (fr)
AT (1) ATE101361T1 (fr)
DE (2) DE3938138C2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2699115A1 (fr) * 1992-12-15 1994-06-17 Heidelberger Druckmasch Ag Machine rotative à imprimer des feuilles avec sortie de feuilles d'épreuve.
EP0894624A3 (fr) * 1997-07-30 1999-06-16 Baldwin-Japan Ltd. Dispositif d'identification d'une plaque d'impression ou d'un produit imprimé
CN105882142A (zh) * 2016-04-26 2016-08-24 阜阳市飞扬印务有限公司 印刷品缺陷检测系统及其方法

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69319219T3 (de) * 1993-02-17 2004-05-06 Kba-Giori S.A. Vorrichtung und Verfahren zum Prüfen von Drucksachen
DE4335714A1 (de) * 1993-10-20 1995-04-27 Heidelberger Druckmasch Ag Verfahren und Anordnung zur Probebogenentnahme aus einer drucktechnischen Maschine
DE29717502U1 (de) * 1997-10-01 1999-05-12 Günther Louda GmbH, 82041 Oberhaching Vorrichtung zum Zählen dünner werthaltiger Flacherzeugnisse in einem Stapel
DE10047039A1 (de) 1999-10-20 2001-04-26 Heidelberger Druckmasch Ag Markierungseinrichtung für Bogenseitenkanten in einer Rotationsdruckmaschine
DE20303574U1 (de) 2003-03-06 2003-04-30 MAN Roland Druckmaschinen AG, 63075 Offenbach Bildinspektionssystem für eine Druckmaschine
DE102005037498A1 (de) * 2005-08-09 2007-02-15 Man Roland Druckmaschinen Ag Qualitätskontrollsystem für eine Druckmaschine
US7287473B2 (en) 2005-12-20 2007-10-30 Heidelberger Druckmaschinen Ag Method for selecting printing material in a printing press and printing press
DE102006004569B4 (de) * 2006-02-01 2017-12-28 Koenig & Bauer Ag Verfahren und Vorrichtung zur Markierung von Bedruckstoffbogen
DE102006028482A1 (de) * 2006-06-21 2007-12-27 Koenig & Bauer Aktiengesellschaft Vorrichtung zur Markierung von Druckbogen mit fehlerhaften Einzelnutzen beim Nutzendruck
DE102014005496A1 (de) * 2014-04-14 2015-10-15 Heidelberger Druckmaschinen Ag Workflow für Web to Print Druckereien

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD55967A1 (de) * 1966-04-07 1967-05-20 Vorrichtung zum Einlegen von Markierungsstreifen
DD63523A1 (de) * 1966-11-29 1968-09-05 Vorrichtung zum Einschiessen von Rieszeichen in Bogenstapel
DD68523A2 (de) * 1966-11-29 1969-08-20 Vorrichtung zum Einschiessen von Rieszeichen in Bogenstapel
DE3034212C2 (de) * 1980-09-11 1982-11-25 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Rotationsdruckmaschine mit einer Bogenstapelmarkierungsvorrichtung
FR2519582A1 (fr) * 1981-10-21 1983-07-18 Groult Emile Installation de surveillance et de commande de fabrication, notamment d'une machine d'imprimerie
DE8318009U1 (de) * 1983-06-22 1985-07-25 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Vorrichtung zur Entnahme von bedruckten Bogen für deren Begutachtung
DE3347778C2 (de) * 1983-06-22 1985-12-19 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Vorrichtung zur Entnahme von bedruckten Bogen für deren Begutachtung
DE3626937A1 (de) * 1986-08-08 1988-02-18 Koenig & Bauer Ag Einrichtung zur entnahme von bedruckten bogen aus bogenrotationsdruckmaschinen
DE3723589A1 (de) * 1987-07-16 1989-01-26 Bell & Howell Co Verfahren und einrichtung zum zufoerdern von blattstapeln oder papierstapeln zu vereinzelungs- und weitergabeeinrichtungen

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2699115A1 (fr) * 1992-12-15 1994-06-17 Heidelberger Druckmasch Ag Machine rotative à imprimer des feuilles avec sortie de feuilles d'épreuve.
GB2273463A (en) * 1992-12-15 1994-06-22 Heidelberger Druckmasch Ag Compiling statistical quality-assurance samples from a printing press.
US5377587A (en) * 1992-12-15 1995-01-03 Heidelberger Druckmaschinen Ag Sheet-fed rotary printing press with inspection-sheet delivery
GB2273463B (en) * 1992-12-15 1996-03-13 Heidelberger Druckmasch Ag Sheet-fed rotary printing press with inspection-sheet delivery
EP0894624A3 (fr) * 1997-07-30 1999-06-16 Baldwin-Japan Ltd. Dispositif d'identification d'une plaque d'impression ou d'un produit imprimé
CN105882142A (zh) * 2016-04-26 2016-08-24 阜阳市飞扬印务有限公司 印刷品缺陷检测系统及其方法

Also Published As

Publication number Publication date
EP0427975A3 (en) 1991-08-14
DE3938138C2 (de) 1993-12-23
DE3938138A1 (de) 1991-05-23
EP0427975B1 (fr) 1994-02-09
DE59004550D1 (de) 1994-03-24
ATE101361T1 (de) 1994-02-15

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