Angled Print Pad with Hinge for 360-Degree Cylindrical Printing
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Solution Overview
Problem
Conventional pad printing machines struggle to print high-quality 360-degree images on cylindrical objects with outer diameters greater than 2 mm due to limitations in ink transfer and air bubble formation, leading to distorted or incomplete images.
Innovation Solution
A modified printing pad machine with a single angled print pad and a flexion-extension hinge, controlled by an adjustable and moveable actuator system, allows for a high angle of attack and flexible movement to ensure ink transfer from a cliché to a cylindrical surface, enabling a 360-degree clean image on curvilinear surfaces with varying diameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a conventional pad printing machine uses a standard print pad to print on cylindrical objects with outer diameters greater than 2 mm, then the printing process is simple, but the image quality deteriorates due to air bubble formation and incomplete ink transfer
Solution Approach 1:
The patent applies the dynamics principle by making the print pad movable and adjustable through a hinge mechanism. The print pad can be positioned at different angles and distances from the cylindrical surface, allowing it to adapt to various diameter objects. This dynamic adjustment capability enables complete ink transfer without air bubbles while maintaining image quality across different object sizes.
Solution Approach 2:
The patent implements parameter changes by modifying the print pad's physical parameters - specifically its angle of attack and distance from the substrate. By adjusting these parameters through the hinge mechanism, the system optimizes ink transfer efficiency and eliminates air bubble formation, thereby improving image quality without requiring a completely different machine design.
2Manufacturing precision
If a standard print pad is used for cylindrical surfaces, then the machine structure remains simple, but ink transfer completeness deteriorates leading to distorted images
Solution Approach 1:
The print pad is designed with a hinge mechanism that allows it to dynamically adjust its position and angle during the printing process. This enables the pad to maintain optimal contact with the cylindrical surface regardless of its diameter, ensuring complete ink transfer from the cliché to the substrate without distortion.
Solution Approach 2:
The printing system is segmented into independently adjustable components - the cliché holder, the hinge mechanism, and the print pad. This segmentation allows each component to be optimized separately, with the hinge providing precise control over pad positioning to achieve complete ink transfer while keeping the overall machine structure relatively simple.
3Manufacturing precision
If a high angle of attack pad is used to prevent air bubbles, then image quality improves, but the machine requires more complex adjustment mechanisms
Solution Approach 1:
The hinge mechanism provides dynamic adjustment capability that allows the operator to easily set the print pad at the optimal high angle of attack. This simple hinge design maintains ease of operation while achieving the high angle necessary to prevent air bubble formation and ensure high-quality printing on cylindrical surfaces.
4Adaptability or versatility
If the print pad is made flexible to adapt to curvilinear surfaces, then adaptability improves, but control precision during printing may deteriorate
Solution Approach 1:
The hinge mechanism provides controlled flexibility, allowing the print pad to adapt to curvilinear surfaces while maintaining precise control over its position and angle. The rigid hinge joint ensures that the pad can be positioned accurately, while still allowing enough movement to accommodate variations in cylindrical surface geometry.
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
The solution enables the printing of high-quality, 360-degree images on cylindrical objects with outer diameters greater than 2 mm by minimizing air bubbles and ensuring complete ink transfer, reducing wear on the printing pad and maintaining image quality.
Implementation Method 1
ensuring complete ink transfer
Implementation Method 2
minimizing air bubbles
Implementation Method 3
A flexion-extension hinge positioned between (a) the support member and the base or (b) the support member and the overhead gantry
Data Source
AI summary
A printing pad machine that can print a 360 degree image on a cylindrical object. That objective is achieved by modifying a conventional printing pad machine. The modifications include using a single angled print pad having a contact wall having a first height, a lower wall having a second height that is less than the first height, an angled surface interconnecting the contact wall's distal end and the lower wall's distal end, and a base wall interconnecting the contact wall's proximal end and the lower wall's proximal end and connectable to a base. Another modification includes a flexion-extension hinge positioned between the support member and the base or the support member and the overhead gantry and controlled by the adjustable and moveable actuator system and power source. That objective can be accomplished with the conventional printing pad machine using the single angled print pad.