Swing Part Positioning Mechanism for Transport Device Pinch Region
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Solution Overview
Problem
In sheet transport devices, low positioning accuracy of rotary parts can lead to skewing of objects being transported, as the pinch region formed by the contact between the first and second rotary parts is not accurately maintained.
Innovation Solution
A transport device is designed with a swing part that supports one end of the second rotary part and is swingable around the rotation center of the first rotary part, along with a fixing section to accurately position the second rotary part with respect to the first rotary part, forming a stable pinch region for precise object transport.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple rotary part configuration is used, then device complexity is reduced, but positioning accuracy deteriorates causing object skewing
Solution Approach 1:
The swing part is designed to be swingable around the rotation center of the first rotary part, allowing dynamic adjustment of the second rotary part's position. This dynamic mechanism enables accurate positioning while maintaining a relatively simple overall structure, resolving the contradiction between structural simplicity and positioning accuracy.
Solution Approach 2:
The swing part acts as an intermediary mechanism between the fixed first rotary part and the second rotary part. By introducing this intermediate swingable component, the system achieves precise positioning capability without requiring complex direct coupling mechanisms, thus maintaining structural simplicity while improving positioning accuracy.
2Stability of the object's composition
If the second rotary part is fixed rigidly, then positioning stability is improved, but adjustment capability is lost
Solution Approach 1:
The swing part provides a hinge connection that allows the second rotary part to be adjusted to different positions during setup, then fixed in the desired position for stable operation. This dynamic-adjustable-then-fixed approach maintains both adjustment capability and positioning stability.
Solution Approach 2:
The swingable mechanism allows preliminary adjustment of the second rotary part's position before final fixation. This preliminary action enables accurate positioning to be achieved and maintained, ensuring both adjustability during setup and stability during operation.
Data Source
AI summary
A transport device includes a first rotary part that rotates; a second rotary part that contacts the first rotary part, that forms a pinch region where an object to be transported is pinched between the second rotary part and the first rotary part, and that rotates together with the first rotary part; and a positioning mechanism that positions the second rotary part with respect to the first rotary part. The positioning mechanism includes a swing part that supports one end portion side of the second rotary part, that is supported at one end portion side of the first rotary part, and that is swingable around a rotation center of the first rotary part; and a fixing section that fixes the swing part.