Print Head Mounting Device with Dual Solid Body Joints
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Solution Overview
Problem
Existing print head mounting devices are complex, expensive, and difficult to use, requiring trained experts for maintenance and adjustments, as they are prone to contamination and lack accessibility for print head replacement and adjustment.
Innovation Solution
A mounting device with a rigid frame and two solid body joints providing independent adjustments in two degrees of freedom (translatory movement along the x-axis and rotation about the z-axis) using actuators like cone drives, allowing for precise and contamination-resistant alignment and replacement of print heads without height change.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a complex multi-part mounting device is used to align print heads accurately, then positioning precision is improved, but device complexity and cost increase
Solution Approach 1:
The mounting device is divided into a fixed element and a movable element that can be independently adjusted. The movable element separates the adjustment functions (translatory movement along x-axis and rotation about z-axis) into distinct degrees of freedom, allowing precise positioning without requiring a complex multi-part structure. This segmentation enables accurate print head alignment while maintaining device simplicity.
2Ease of operation
If traditional mounting devices are used, then print heads can be mounted, but accessibility for replacement and adjustment becomes difficult
Solution Approach 1:
The mounting device incorporates a movable element with two degrees of freedom that can be dynamically adjusted. The first degree of freedom enables translatory movement along the x-axis, and the second degree of freedom enables rotation about the z-axis. This dynamic adjustment capability allows easy access and replacement of print heads while maintaining precise positioning, eliminating the need for complex disassembly operations.
3Manufacturing precision
If precision mechanics approaches are used for print head alignment, then positioning accuracy is improved, but susceptibility to contamination increases
Solution Approach 1:
The invention replaces traditional precision mechanics approaches with a simplified adjustment mechanism consisting of a movable element with two degrees of freedom. This new mechanism reduces the number of mechanical components and contact surfaces that could accumulate ink contamination. The adjustment device uses straightforward translatory and rotational movements rather than complex precision mechanics, thereby maintaining alignment accuracy while reducing contamination susceptibility.
Data Source
AI summary
A mounting device for a print head and a printing system allows print heads to be easily changed and easily and reliably adjusted. The mounting device includes a rigid mount and a frame for receiving a print head. The frame is releasably fixed to the rigid mount and includes an adjustment device for adjusting the print head relative to the rigid mount. The adjustment device of the frame includes two solid body joints and two actuators for adjusting the print head in two degrees of freedom, namely in a sliding movement along the rigid mount and a rotary movement about the vertical axis.