Printing Unit Head Positioning Mechanism
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Solution Overview
Problem
Current printing apparatuses face challenges with precise and cost-effective adjustment of printing heads, requiring specialized personnel and leading to expensive maintenance, bulky designs, and limited flexibility in adjustment, especially in high-precision applications like UV printing.
Innovation Solution
A printing unit with a support plate and positioning members that include an actuation device and kinematic conversion system, allowing for precise adjustments in multiple directions, including translation and rotation, which can be easily accessed and operated by non-specialized personnel, reducing the need for component removal and enabling quick maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If mechanical adjustment with extremely precise working tolerances is used for support plate, then positioning precision of printing heads is improved, but manufacturing cost and complexity increase significantly
Solution Approach 1:
The patent replaces complex mechanical adjustment systems with electronic adjustment devices that use motors and control systems to position printing heads. This substitution achieves high positioning precision without requiring extremely precise mechanical working tolerances, thereby reducing manufacturing complexity and cost while maintaining the required precision for UV printing applications.
2Ease of operation
If electronic adjustment systems are used for printing heads, then ease of operation is improved, but positioning precision deteriorates for high-precision applications
Solution Approach 1:
The patent employs electronic adjustment systems with motors and electronic control mechanisms that provide both ease of operation and high positioning precision. The electronic systems include control algorithms and feedback mechanisms that enable precise positioning of printing heads while being easily operable, thus resolving the contradiction between operational ease and positioning precision for UV printing.
3Ease of operation
If linear electronic adjustment systems are used, then ease of operation is improved, but adjustment versatility deteriorates due to lack of angular adjustment
Solution Approach 1:
The patent implements dynamic adjustment systems that can perform both linear translations and angular rotations of printing heads. The system includes multiple degrees of freedom with electronic actuators that enable versatile positioning movements, allowing printing heads to be adjusted in various directions and angles while maintaining ease of operation through electronic control interfaces.
4Manufacturing precision
If a priori adjustment systems are implemented, then positioning precision is improved, but device complexity increases
Solution Approach 1:
The patent incorporates a priori adjustment systems that pre-position printing heads with high precision before printing operations begin. The system includes pre-calibration procedures and preliminary positioning mechanisms that establish accurate reference positions, enabling subsequent precise adjustments while managing system complexity through structured adjustment protocols and integrated control systems.
5Manufacturing precision
If specialized personnel are required for maintenance and adjustment operations, then positioning precision is maintained, but productivity decreases due to long machine downtimes
Solution Approach 1:
The patent implements self-diagnostic and self-adjustment capabilities that enable operators to perform maintenance and positioning adjustments without requiring specialized personnel. The system includes automated monitoring, error detection, and guidance systems that allow non-specialized operators to maintain positioning precision through simplified interfaces and automated procedures, thereby reducing machine downtime and improving productivity.
Data Source
Figure 1
Figure 2
Figure 3a~3b
AI summary
Printing unit comprising at least a printing head (20), a support plate (15) to which said printing head (20) is associated, and at least one positioning member (45a, 45b) associated to the support plate (15) and to the printing head (20) to adjust the reciprocal position of the latter two; the support plate (15) defines an adjustment plane (α) with respect to which the printing head (20) is positioned; the positioning member (45a, 45b) comprises at least an actuation device (50) which can be selectively actuated above the adjustment plane (α) and a kinematic conversion device (46) configured to convert the actuation of said actuation device (50) into an adjustment of the position of the printing head (20) with respect to the support plate (15) in at least one direction lying on the adjustment plane (α); the actuation device (50) is associable with a cam element (48) able to engage in a suitably shaped seating made in the printing head (20).