Print Control Strip with Sensor Fields for Sheet Alignment
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Solution Overview
Problem
Sheet processing machines face challenges in accurately aligning and processing sheets due to limitations in existing control systems, which affect the quality of printing and processing, particularly in ensuring precise registration and alignment of printing and punching operations.
Innovation Solution
A print control strip with integrated sensors and a feed system that uses camera sensors to detect print marks and control fields, allowing for individual regulation of actuators for each sheet, ensuring precise alignment and processing by integrating control fields directly onto the sheet, thus enhancing the machine's ability to align sheets accurately and efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a sensor device with at least two sensors is integrated into the feed system to detect print marks and control fields, then manufacturing precision and alignment quality are improved, but device complexity increases
Solution Approach 1:
The patent combines multiple sensors (at least two sensors designed to detect different features) into a single integrated sensor device within the feed system. This merging approach allows simultaneous detection of print marks and control fields, improving alignment precision while consolidating rather than multiplying separate detection systems.
Solution Approach 2:
The sensor device is designed with multi-functional capability to detect both print marks (for positioning) and control fields (for alignment control). This universal detection capability eliminates the need for separate specialized sensors, improving manufacturing precision without proportionally increasing device complexity.
2Ease of operation
If control fields are integrated directly onto the sheet as part of the print control strip, then ease of operation and alignment control are improved, but manufacturing complexity increases
Solution Approach 1:
The control fields are merged with the print control strip and integrated directly onto the sheet. This combination allows the control fields to serve dual purposes: as part of the printed content and as alignment reference markers, simplifying the operation by providing all necessary control elements in one integrated structure.
Solution Approach 2:
The control fields are pre-integrated onto the sheet during the printing process, before the sheet enters the feed system. This preliminary preparation ensures that alignment references are already in place and ready for immediate detection and use, improving ease of operation without requiring additional post-printing steps.
3Manufacturing precision
If individual regulation of actuators is implemented for each sheet based on sensor detection, then manufacturing precision is improved, but device complexity and processing time increase
Solution Approach 1:
The system implements feedback control by detecting the actual position of print marks and control fields on each sheet, comparing it with the desired position, and individually regulating the actuators to correct any deviations. This closed-loop feedback mechanism achieves high position accuracy while using a unified control approach rather than complex individual actuator control systems.
Solution Approach 2:
Each sheet essentially regulates its own positioning through the detection and feedback mechanism. The sensor detects the sheet's actual position, and the control system automatically adjusts the actuators to achieve the correct alignment, allowing sheets to self-correct their positioning without requiring complex external intervention for each individual sheet.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enables precise positioning and alignment of sheets, reducing position errors and improving the quality of processing by allowing for real-time adjustment and control of the processing machine's actuators based on detected print marks and control fields, thereby optimizing the use of sheet area and enhancing processing efficiency.
Implementation Method 1
The at least one sensor device has at least two sensors, in particular which are designed as cameras, for detecting at least one print mark of at least one sheet of sheets
Data Source
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AI summary
The invention relates to a print control strip (21), the at least one print control strip (21) having at least one control field (22) designed as an element for colour control (23), the at least one print control strip (21) having at least one control field (22) designed as a printing mark (11), the at least one printing mark (11) being designed to align a substrate (02) in the transport direction (T) and/or in the transverse direction (A), the at least one print control strip (21) having at least one control field (22) designed as a page identification mark (26) and/or the at least one print control strip (21) having at least one control field (22) designed as a plate identification field (27). The invention also relates to a substrate (02) comprising the at least one print control strip (21). The invention also relates to a method for open-loop and/or closed-loop control of at least one component of a processing machine (01).