CA2038370A1 - Method for the production of specimen prints in individual colours or colour combinations in a printing machine - Google Patents

Method for the production of specimen prints in individual colours or colour combinations in a printing machine

Info

Publication number
CA2038370A1
CA2038370A1 CA 2038370 CA2038370A CA2038370A1 CA 2038370 A1 CA2038370 A1 CA 2038370A1 CA 2038370 CA2038370 CA 2038370 CA 2038370 A CA2038370 A CA 2038370A CA 2038370 A1 CA2038370 A1 CA 2038370A1
Authority
CA
Canada
Prior art keywords
program
printing
printing machine
individual
colour
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.)
Abandoned
Application number
CA 2038370
Other languages
French (fr)
Inventor
Dieter Hauck
Edmund Schramek
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.)
Heidelberger Druckmaschinen AG
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
Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of CA2038370A1 publication Critical patent/CA2038370A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F33/00Indicating, counting, warning, control or safety devices
    • B41F33/0009Central control units
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F7/00Rotary lithographic machines
    • B41F7/18Rotary lithographic machines specially adapted for proof printing

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Abstract

Method for the production of specimen prints in individual colours or colour combinations in a printing machine Abstract The aim of the present invention is the creation of a method for the automatic production of colour extracts, in which a preselected number of sheets in a desired colour combination are printed.

The aim is achieved by means of a control device in which at least one control program is storable. This control program is composed of individual program steps and controls the impression throw-on/off in the individual printing units of the printing machine according to the stored program steps. As an alternative to these preset, recallable control programs, any print volume of colour combinations desired by the machine operator can be preselected.

Description

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Method for the production of specimen prints in individual colours or colour combinations in a printing machine The invention relates to a method for the production of specimen prints in individual colours or colour combinations in a printing machine.

From DE-AS 15 36 449, we are familiar with a control device for a multi-colour sheet rotary offset printing machine which permits selected blanket cylinders or any combination of blanket cylinders of the printing units to be shifted into printing or non-printing position from a main control point. This allows specimen prints in any colours or colour combinations to be produced simply and inexpensively.

The disadvantage of this control device is to be seen in the fact that impression throw-on/off must be performed manually by the machine operator. The number of specimen prints produced in a selected colour or colour combination cannot be exactly determined. The danger exists that too many sheets in a selected colour or colour combination may be printed: this ultimately leads to the printing of waste sheets.

The aim of the invention is to describe a method for the automatic production of colour extracts.

The aim is achieved ~y means of a control device containing at least one control program which is storable, this ~ontrol program being composed of individual program steps, and with impression throw-on/off being effected in the individual printing ~ . ~ . : . . .. . . . . . .
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units of the printing machine according to the stored program steps. -In an advantageous development of the method according to the invention, the control program is selected from a program library. According to, for example, the number of colours to be printed, certain control programs are stored in this program library. These programs automatically take into account all specimen prints required for evaluation of the printed product, -i.e. type of the colour extract and number of the prints to ~e produced.

In addition to this configuration, the control program is designed so that it can be built up from freely programmable program steps. This measure allows the operating personnel to produce special specimen prints according to specific requirements.

, The development of the invention is especially advantageous in that the number of printings to be effected in the appropriate printing units of the printing machine can be preselected for each individual program step. The fact that the number of sheets to be printed in a program step can be preselected makes it possible to produce no more than the number of specimen prints in a colour or colour combination that is required for evaluation of the specimen print. In this manner, a saving in costs and time is achieved.

Furthermore, in a development of the method according to the invention, it is proposed that, after execution of a program step, i.e. after printing of the preselected number of the paper sheets in a colour or a .~ .,, . . . ; , ,: , - . , , . . ., .. , , ; : , ~ . . . -~1~3~3~

colour combination, a separation tape is automatically inserted in the delivery pile. In this manner, the machine operator can easily observe where the specimen printing of a single colour or a colour combination ends and/or where the next one begins.

In a development of the method according to the invention, it is proposed that the printing speed of the printing machine is prese~. This measure permits an optimal adaptation of the printing result to the printing process which actually follows at a later stage.

In a further development, it is proposed that the rubber blanket of unstarted blanket cylinders is washed before, after or during the program run.

Furthermore, in an advantageous development of the method according to the invention, waste sheets are prestacked for proofprinting, the number of waste sheets is communicated to the control device, and the actual control program is not started until the waste sheets have been fully run through the printing machine. It proves advantageous also in this instance if the waste sheets are separated from the good sheets through automatic tape insertion. In addition, a preselected number of waste sheets is taken into account between two program steps.

In a further advantageous measure, a good sheet is singled out during production of the specimen print of a colour or a colour combination, so that the machine operator can evaluate the specimen print without additional effort.

, . - : .::
:: :. : - .. . .
. - - ~ , . , ~ , 2 ~ 7 ~3 Furthermore, the number of the waste sheets printed between two program steps is taken into account. In this manner, it is ensured that evaluation of the specimen printing is effected with a good sheet and not in the early prerun phase.

In order to reach the stable printing state after a specimen print change as quickly as possible, it is proposed that the printing plates of the printing units which also need to be started are inked up and overdamped before execution of the next program step.

The invention is explained in more detail with the aid of the unique diagram.

Fig. 1 shows a schematic side view of a two-colour sheet-fed printing machine with a coupled control device for implementation of the method according to the invention.

Fig. 1 shows a sheet-fed printing machine 1 with two printing units 2, a feeder 3 and a delivery 4. The individual printing units 2 display the normal cylinder arrangement consisting of a plate cylinder 5, a blanket cylinder 6, an impression cylinder 7 and a transfer cylinder 8. A reversing drum 9 is positioned between the two printing units 2. An angle sensor 11 is mounted on the shaft of the register feed drum 10. The information on the specific angular position of the printing machine 1 which is delivered by the angle sensor 11 is transmitted via data lines to the sontrol device 12, which is accommodated, for example, in a control box. A machine/man inter~ace is formed by the control panel 13 on which a plasma display 14 and a keyboard 15 for the data input/output are provided. The operating personnel can call up a programmed control program from this control panel 13. According to the .

.. ~ .. : , . ., , . , . :,. : :

r~l ~ 3 program steps stored in this program, the individual specimen prints in various colours and colour combinations are produced in the printing machine 1.

The two-colour sheet-fed printing machine shown in Fig.
1 makes it possible to produce a certain number of sheets in the single colours as well as in both colours through a combination printing. Step-by-step throwing of the impression cylinders 7 on/off the blanket cylinders 6, insertion of the separation tapes in the sheet pile, and also switch-off of the sheet feeder after execution of the program are performed via the setting devices 16, 17 and 18 which are arranged at the appropriate points of the printing machine 1. In addition, to optimize the production of specimen prints, a blanket washer is automatically activated before, during or after the execution of the individual program steps.

According to a further proposition related to the inven~ion, the printing plate of a restarted printing unit 2 is inked up and overdamped via the damping unit 19 and the inking unit 20 before execution of the subsequent program step.

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2~/1/91 LIST OF REFERENCE SYMBOLS

1. Sheet-fed printing machine 2. Printing unit 3. Feeder 4. Delivery 5. Plate cylinder -6. Blanket cylinder 7. Impression cylinder 8. Transfer cylinder 9. Reversing drum .
10. Register feeder drum 11. Angle sensor 12. Control device ~.
13. Control panel 14. Display 15. Keyboard 16. Setting devices 17. Setting devices 18. Setting devices $9. Damping unit 20. Inking unit.
.. . .

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Claims (12)

1. Method for the production of specimen prints in individual colours or colour combinations in a printing machine, - in which there is a control device (12) comprising at least one control program which is storable, - in which this control program is built up from individual program steps and - in which impression throw on/off is effected in the individual printing units (2) of the printing machine (1) according to the stored program steps.
2. Method according to Claim 1, in which the control program is selected from a program library.
3. Method according to Claim 1, in which the control program is built up from freely programmable program steps.
4. Method according to Claim 3, in which the number of printings to be performed in the appropriate printing units (2) of the printing machine (1) is preselectable for each program step
5. Method according to Claim 4, in which a separation tape is automatically inserted after execution of a program step.
6. Method according to Claim 4, in which the printing speed of the printing machine (1) is preset.
7. Method according to one or several of the above claims, in which the rubber blanket on thrown-off blanket cylinders (6) having already completed a printing operation is automatically washed before, after or during the program run.
8. Method according to one or several of the above claims, - in which waste sheets are prestacked for proof printing and in which execution of the control program begins through input of the specific number of the waste sheets, once the waste sheets are printed.
9. Method according to claim 8, in which the waste sheets are separated from the good sheets through automatic tape insertion.
10. Method according to one or several of the above claims, in which a good sheet is automatically singled out.
11. Method according to one or several of the previous claims, in which the number of waste sheets printed between two program steps is automatically taken into account.
12. Method according to one or several of the above claims, in which the printing plate is inked up and overdamped before execution of a program step.
CA 2038370 1990-04-26 1991-03-15 Method for the production of specimen prints in individual colours or colour combinations in a printing machine Abandoned CA2038370A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4013376 1990-04-26
DEP4013376.1 1990-04-26
DE19914102536 DE4102536A1 (en) 1990-04-26 1991-01-29 METHOD FOR CREATING SAMPLE PRINTS OF INDIVIDUAL COLORS OR COLOR COMBINATIONS IN A PRINTING MACHINE
DEP4102536.9 1991-01-29

Publications (1)

Publication Number Publication Date
CA2038370A1 true CA2038370A1 (en) 1991-10-27

Family

ID=25892577

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2038370 Abandoned CA2038370A1 (en) 1990-04-26 1991-03-15 Method for the production of specimen prints in individual colours or colour combinations in a printing machine

Country Status (4)

Country Link
EP (1) EP0453862A1 (en)
JP (1) JPH04226366A (en)
CA (1) CA2038370A1 (en)
DE (1) DE4102536A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4435429C2 (en) * 1994-10-04 2000-07-06 Wifag Maschf Web rotary printing machine
DE102005040454B4 (en) * 2004-09-30 2018-01-04 Heidelberger Druckmaschinen Ag Method for marking test sheets
CN111823742A (en) * 2020-07-17 2020-10-27 陕西北人印刷机械有限责任公司 Control method for random combination of double-receiving double-releasing machine set type gravure printing machine

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1296590A (en) * 1961-03-20 1962-06-22 Etudes De Machines Speciales Rotary printer
US3195456A (en) * 1963-11-18 1965-07-20 Cutler Hammer Inc Timing and sequencing control system for sheet fed rotary printing press
GB1117973A (en) * 1965-06-07 1968-06-26 Harris Intertype Corp Multiunit printing presses
US3458186A (en) * 1966-09-08 1969-07-29 Leipzig Veb Druckmasch Werke Device for insertion of marking strips into a forming stack
AT358518B (en) * 1975-10-06 1980-09-10 Zimmer Peter Ag CONTROL DEVICE FOR A ROTATIONAL STENCIL PRINTING MACHINE
DD123077A1 (en) * 1975-12-09 1976-11-20
JPS5342667A (en) * 1976-09-30 1978-04-18 Ricoh Co Ltd Electronic counter for printer
GB2024457B (en) * 1978-06-07 1983-01-06 Harris Corp Printing press ready and control system
US4240346A (en) * 1979-01-29 1980-12-23 Harris Corporation Web printing press
JPS5728619Y2 (en) * 1981-03-07 1982-06-22
DE8318009U1 (en) * 1983-06-22 1985-07-25 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Device for removing printed sheets for their assessment
JPS6071257A (en) * 1983-09-28 1985-04-23 Ryobi Ltd Printing process setting apparatus including number of printing sheets in printing press
EP0160167A1 (en) * 1984-02-21 1985-11-06 Didde Graphic Systems Corporation Method and apparatus for distributed electronic control of a printing press
DD239985B1 (en) * 1985-08-06 1989-12-13 Polygraph Leipzig UNIFIED EXTRACTION CONTROL FOR PRINTING MACHINES
DE3708925C2 (en) * 1986-04-30 1995-08-31 Heidelberger Druckmasch Ag Device for controlling or regulating operations on a rotary offset sheet-fed printing press
JPH01255539A (en) * 1988-04-06 1989-10-12 Toshiba Corp Command device for printing speed

Also Published As

Publication number Publication date
JPH04226366A (en) 1992-08-17
EP0453862A1 (en) 1991-10-30
DE4102536A1 (en) 1991-10-31

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Legal Events

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