Winding Core and Support Shaft Alignment for Heavy Wound Bodies
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Solution Overview
Problem
Existing wound bodies with packing material wound around a support shaft are difficult to align circumferentially due to their weight, making mounting operations challenging.
Innovation Solution
A wound body design featuring a core body with recesses and projections that engage with corresponding projections and recesses on a support shaft, allowing for alignment and integration, enabling easy mounting and rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the wound body is made heavy to ensure stability during operation, then the stability is improved, but the ease of operation deteriorates due to difficulty in aligning the circumferential position
Solution Approach 1:
The wound body is equipped with alignment protrusions that automatically engage with corresponding recesses on the support shaft during mounting. This self-aligning mechanism allows the heavy wound body to position itself correctly without requiring manual circumferential alignment, thereby maintaining stability while improving ease of operation
Solution Approach 2:
Alignment protrusions and recesses serve as intermediary elements between the wound body and support shaft. These features facilitate the mounting process by providing automatic circumferential positioning, enabling the heavy wound body to be easily mounted without requiring precise manual alignment
2Device complexity
If the wound body is designed with a simple structure to reduce complexity, then the device complexity is reduced, but the manufacturing precision deteriorates due to lack of alignment features
Solution Approach 1:
The mounting interface is segmented into alignment protrusions on the wound body and corresponding recesses on the support shaft. This segmentation provides built-in alignment features that ensure precise circumferential positioning during manufacturing and assembly, while adding minimal complexity to the overall structure
Data Source
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AI summary
A support shaft capable of supporting a wound body with a long sheet wound therearound includes a first projection located at a proximal end of an outer peripheral part, and a second projection located at a distal end of the outer peripheral part. A core body of the wound body includes a one-end-side 1st recess part located at one end of an inner peripheral part, an other-end-side 1sts recess part located at an other end of the inner peripheral part, and a 2nd recess part located to extend from the one end to the other end. In a state where the core body is mounted on an outer periphery of the support shaft, the 1st projection engages the one-end-side 1st recess part or the other-end-side 1st recess part. When the core body is mounted to the outer periphery of the support shaft, the 2nd projection engages the 2nd recess to allow the circumferential position of the 1st projection to be aligned with the circumferential position of the one-end-side 1st recess part or the other-end-side 1st recess part around a central axis.