DE102015222708A1 - Simultaneous setup of several orders - Google Patents

Abstract

The present invention comprises a method for processing at least a first and a second print job with a rotary printing machine, wherein the properties of the print jobs are detected by a computer and compared with the properties of the printing press. The invention is characterized in that the computer calculates set-up work by means of the comparison and that the set-up work for the job change between the first and the second print job is carried out at least partially simultaneously with the set-up work before the first print job.

Description

Before a print job can be performed, first replace the plates that were used for the previous job with the plates required for the upcoming job. This plate change takes up the bulk of the time that a job change requires. Especially for low-volume jobs, a long changeover period has a noticeably negative impact on productivity.

In DE 10 2010 001 314 A1 discloses a method for operating sheet-fed offset printing machines, which allows to change without delay from the completion of a current order at least one printing unit in the settlement of a next order on another printing unit. This problem is solved by the fact that for the first job unnecessary printing units of a printing press during the first order already prepared for a second job.

Object of the present invention is to provide a simplified compared to the prior art method to reduce the changeover time of printing presses by optimizing the plate changing process.

This object is achieved by means of a method according to claim 1. The inventive method is used in printing machines with multiple printing units used.

The press is assigned a computer which records the properties of outstanding print jobs and compares them with the characteristics of the press. The method is characterized in that the computer calculates on the basis of this comparison the set-up work change order such that they can be performed for the job change between a first and a second print job at least partially simultaneously with the set-up before the first print job. Thus, set-up work for several print jobs are carried out at least partially simultaneously, so that the Umsetzpause for the next print job can be shortened or even eliminated.

An advantageous development of the invention provides that the computer is supplied with a list of all pending print jobs. In doing so, the computer evaluates the printing units required for each print job as well as any potential set-up work. Based on the calculated data, he then calculates the order sequence, in which the set-up work can be summarized optimally and thus there is a minimum number of interruptions due to conversions.

A further advantageous embodiment of the invention provides that displayed on a computer screen associated with the future calculated by the computer setup work. This makes it possible for the machine operator to prepare the set-up work as early as possible.

Another embodiment of the invention provides that the operator can set the job order manually, the computer determines the necessary set-up and displays on the monitor.

The inventive method is shown in the following embodiment and the drawings.

1 shows a printing press, which has four printing units, a computer and a monitor.

In the following example, there are four print jobs. assignment 1 needs a color. assignment 2 and order 3 need each 2 Colours. assignment 4 needed 3 Colours. According to the invention, at first one of the printing press 1 assigned computer 3 All pending print jobs supplied. The calculator 3 are all the features of the printing press 1 known. In particular, the number of printing units 2 and the printing works 2 associated colors. The computer 3 now compares the requirements of the print jobs with the characteristics of the press 1 , On the basis of this comparison calculates the calculator 3 The resulting set-up work, which occurs in a job change and arranges the orders so that the set-up work that occurs between a first and a second print job, at least partially simultaneously with the set-up before the first print job can be performed. The computer 3 arranges the existing orders in order of order 1 , Assignment 4 , Assignment 2 , Assignment 3 at. Thus, in the armor for order 1 , which only one printing unit 2 needed, same order 4 , which one 3 printing units 2 needed to be equipped. Following order 4 then also the set-up work for the orders 2 and 3 performed simultaneously. This is the computer 3 Calculated order of orders, as well as the necessary set-up work on a computer 3 associated monitor 4 displayed so that the machine operator is able to initiate and prepare the upcoming set-up work as early as possible.

LIST OF REFERENCE NUMBERS

1

press

2

printing unit

3

computer

4

monitor

5

job list

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102010001314 A1 [0002]

Claims (5)

Method for processing at least a first and a second print job with a rotary printing machine ( 1 ), whereby the properties of the print jobs from a computer ( 3 ) and with the characteristics of the printing press ( 1 ), characterized in that the computer ( 3 ) Calculated by the comparison setup work and that the set-up work for the job change between the first and the second print job are at least partially performed simultaneously with the set-up before the first print job. Method according to claim 1, characterized in that the computer ( 3 ) a list of all pending print jobs ( 5 ), whereby the computer supplies the printing units required for each print job ( 2 ) as well as potential set-up work, whereby the computer ( 3 ) based on the data obtained the order sequence, in which the set-up work can be summarized optimally and thus there is a minimum number of interruptions due to conversions calculated. Method according to one of the preceding claims, characterized in that on a the computer ( 3 ) associated screen ( 4 ) from the computer ( 3 ) are displayed in the future resulting set-up work, so that it is possible for the machine operator to prepare the set-up work as early as possible. Method according to one of the preceding claims, characterized in that the order of order can also be determined manually by the machine operator, wherein the computer ( 3 ) determines the necessary set-up work and displays it on the monitor ( 4 ). Method according to one of the preceding claims, characterized in that the set-up work is the plate change for a print job.

Images