Cylindrical Printing Apparatus With Servo Registration Adjustment
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Solution Overview
Problem
Existing decorator machines for printing on cylindrical structures suffer from misregistration issues, requiring manual shutdown and adjustment, leading to inefficiencies and defective products due to delayed detection and time-consuming correction processes.
Innovation Solution
Implementing a servomotor-driven system with lateral and angular adjustment servomotors to independently control the position of printing plate cylinders, allowing for real-time registration adjustments without stopping the printing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manual inspection and adjustment methods are used for registration correction, then misregistration can be detected and corrected, but the printing process must be shut down and significant time is lost
Solution Approach 1:
The patent replaces manual mechanical adjustment with an automated servomotor-driven system. The servomotors receive electronic control signals to automatically adjust the angular and lateral positions of printing plate cylinders, eliminating the need for manual intervention and process shutdown while maintaining registration precision.
Solution Approach 2:
The system enables self-correction of registration errors through automated detection and adjustment mechanisms. The servomotor-controlled positioning system can detect misregistration conditions and automatically correct them without external human intervention, allowing continuous operation while maintaining precision.
2Productivity
If there is a time lag in detecting misregistration, then the printing process continues operating, but a large number of defective containers are produced
Solution Approach 1:
The patent implements a feedback control system where registration status is continuously monitored and information is fed back to the control system. This enables real-time detection of misregistration conditions, allowing immediate corrective action through the servomotor system before defective containers are produced, thus maintaining both continuous operation and high precision.
3Manufacturing precision
If manual adjustment of inkers is performed, then registration errors can be corrected, but the process requires shutdown and manual intervention
Solution Approach 1:
The patent replaces manual mechanical adjustment operations with an automated electromechanical system. Servomotors controlled by electronic signals perform the positioning adjustments that previously required manual intervention, simplifying operation while maintaining correction capability.
4Manufacturing precision
If the printing process is shut down for adjustment, then registration can be corrected, but downtime increases and efficiency decreases
Solution Approach 1:
The patent enables continuous printing operation by implementing an automated registration correction system. The servomotor-driven adjustment mechanism can correct registration errors without interrupting the printing process, eliminating downtime and maintaining continuous productive action while preserving registration accuracy.
Data Source
AI summary
A decorator (10) for printing onto cylindrical structures (18) has a plurality of inkers (12). Each inker (12) has a pair of opposing frame plates (40, 48). A printing plate (204) is affixed to a printing plate cylinder (200) carried by a rotational printing plate cylinder shaft (202). The printing plate shaft (202) is disposed between the opposing frame plates (40, 48). A main shaft (38) supports the inker (12) on the decorator (10) such that the pair of opposing frame plates (40, 48) are slidable along a length of the main shaft (38). A lateral adjustment servomotor (220) acts on a corresponding inker (212) to impart a movement by the inker (12) along the length of the main shaft (38).