Printing Plate Sorting via Digital Sequence Control
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Solution Overview
Problem
Current methods for sorting and logistics of printing plates in offset printing machines are inefficient, leading to labor-intensive and error-prone manual sorting, and result in unnecessary waiting times and plate damage due to job-by-job output without optimization of the printing sequence across orders.
Innovation Solution
A computer-based workflow system collects print job data to generate digital color separation data, sorting printing plates according to the planned order of operations on the offset printing machines, ensuring plates are transported in the correct sequence for efficient processing, allowing for automatic or operator-controlled sorting and output based on the specific needs of each printing press.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual sorting of printing plates is performed according to plan lists, then plates can be sorted and organized, but the process becomes very labor-intensive and error-prone with risk of plate damage
Solution Approach 1:
The patent replaces manual mechanical sorting operations with an automated computer-controlled system. The computer automatically sorts printing plates based on planned printing sequences, eliminating the need for manual handling and reducing both labor intensity and sorting time while minimizing plate damage risk.
Solution Approach 2:
The system enables self-service sorting where the computer automatically organizes plates without human intervention. The automated system retrieves, sorts, and delivers plates to printing presses according to the optimized printing sequence, making the sorting process autonomous and efficient.
2Productivity
If job-by-job plate output is used, then each printing job can be processed independently, but unnecessary waiting times occur and plate damage increases due to lack of sequence optimization
Solution Approach 1:
The computer performs preliminary sorting of printing plates based on the optimized printing sequence before the actual printing process begins. By pre-organizing plates in the correct order and anticipating future printing needs, the system eliminates waiting times and ensures continuous efficient operation without plate damage from hurried handling.
3Adaptability or versatility
If multiple plate carriages are used to handle different printing jobs, then job independence is maintained, but the system complexity and resource requirements increase
Solution Approach 1:
The patent implements a universal plate management system where a single computer controls and coordinates multiple plate carriages, making them function as an integrated resource pool. The computer dynamically assigns plates to different presses based on the optimized printing sequence, allowing any carriage to serve any press, thereby reducing the total number of dedicated carriages needed while maintaining full job handling capability.
Data Source
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AI summary
A method for producing exposed printing plates (5) for a printing process of at least one offset printing press (3) by a computer (1) of a workflow system (9), wherein the computer (1) collects print job data (6) in the prepress stage (7), then generates a set of digital color separation data (8) for the creation of the printing plates (5), sends these to at least one platesetter (2), where the relevant exposed printing plates (5) are produced, from where they are then transported as at least one stack of printing plates by means of at least one plate trolley (4) to their respective, at least one offset printing press (3), and wherein the at least one offset printing press (3) then carries out the printing process with the produced exposed printing plates (5), which is characterized in thatthat the computer (1) sorts the set of digital color separation data (8) for the creation of the exposed printing plates (5) in a sequence depending on the planned sequence of necessary work steps (11) at the at least one offset printing press (3), whereby the at least one stack of printing plates of the exposed printing plates (5) produced therefrom are then transported on the at least one plate trolley (4) in the required sequence to the at least one offset printing press (3).