Media Handling Base Plate Tensioning for Alignment
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Solution Overview
Problem
Large format media handling systems, such as printers and scanners, require a base support structure that balances structural stiffness with precise dimensional accuracy to handle heavy subsystems while maintaining high-resolution processing capabilities, but existing solutions often struggle with aligning and securing these components effectively.
Innovation Solution
A method involving a planar longitudinal cross-structure and side supports with a preloaded connection system, where the base plate is aligned using fixed and adjustable references, and a tensioning force is applied parallel to the side plates to maintain perpendicularity and prevent bending moments, creating an isostatic joint with high structural stiffness and accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a strong supporting structure is used to carry heavy weight, then structural strength is improved, but dimensional accuracy and alignment precision deteriorate
Solution Approach 1:
The supporting structure is divided into multiple modular components (base plate, side supports, cross beams) that can be independently manufactured with high precision and then assembled. This segmentation allows each component to be optimized for both strength and manufacturing precision, resolving the contradiction between carrying heavy weight and maintaining dimensional accuracy.
Solution Approach 2:
Alignment references and mounting surfaces are precision-machined during the manufacturing phase before assembly. This preliminary action ensures that when components are assembled, the dimensional accuracy and alignment are already established, allowing the final structure to achieve both high strength and precision without compromise.
2Adaptability or versatility
If heavy subsystems are supported to achieve large format processing, then processing capability is improved, but alignment and stability deteriorate
Solution Approach 1:
The base plate incorporates localized reinforcement features and precision-machined mounting surfaces at specific locations where subsystems are attached. This local quality enhancement provides optimal support and alignment stability exactly where needed, allowing heavy subsystems to be supported without compromising overall alignment stability.
Solution Approach 2:
The supporting structure includes pre-integrated alignment references and mounting features that are precision-formed during manufacturing. This preliminary action ensures that when heavy subsystems are installed, alignment is facilitated and stability is maintained, resolving the contradiction between processing capability and alignment stability.
3Manufacturing precision
If a rigid base structure is used to maintain dimensional accuracy, then manufacturing precision is improved, but ease of assembly and adjustment deteriorates
Solution Approach 1:
The rigid base structure is segmented into modular components with standardized interfaces and integrated alignment references. This segmentation maintains the rigidity and dimensional accuracy of each component while enabling straightforward assembly through pre-defined mounting points and alignment features, resolving the contradiction between manufacturing precision and ease of assembly.
Data Source
AI summary
An assembly of a large format media handling system comprises a planar cross structure, and a support structure, the support structure including two side supports, wherein the two side supports extend perpendicularly to the cross structure and are connected to the cross structure at respective side edges of the side supports. A tensioning component is associated with each of the side supports, wherein the tensioning component transmits a tensioning force between the cross structure and the side edges of the side supports in a direction parallel to the side supports.