Sheet Alignment Mechanism for Compact Tray Access
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Solution Overview
Problem
The existing sheet processing apparatuses face challenges in achieving a compact layout for sheet alignment on the stacking means without interfering with the removal of sheets from the stack tray, particularly when a neat alignment apparatus is integrated with a second tray above the stack tray, leading to a dense state that hinders sheet removal.
Innovation Solution
The apparatus incorporates a neat alignment apparatus with a shaft-direction drive mechanism and alignment plate rotation shaft member, allowing the alignment section to shift and rotate within a predetermined movable region, enabling accurate sheet alignment orthogonal to the transport direction while being housed within the apparatus to prevent interference with sheet removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a neat alignment apparatus is integrated with a second tray above the stack tray, then sheet alignment accuracy is improved, but the layout becomes dense and interferes with sheet removal
Solution Approach 1:
The alignment section is designed to be movable rather than fixed. It can shift in the width direction and rotate around the shaft direction, allowing it to move out of the way when sheet removal is needed, thus resolving the conflict between maintaining alignment accuracy and enabling easy sheet removal
Solution Approach 2:
The alignment apparatus is divided into separable components including the alignment section, shaft-direction drive mechanism, and rotation drive mechanism. This segmentation allows the alignment section to be independently controlled and moved, preventing interference with sheet removal while maintaining alignment functionality
2Ease of operation
If the alignment section is made movable to avoid interference with sheet removal, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The shaft-direction drive mechanism and rotation drive mechanism are housed within a neat housing that is integrated into the apparatus structure. This nesting approach consolidates multiple mechanisms into a compact unit, reducing overall device complexity while maintaining the movable alignment functionality
Solution Approach 2:
The alignment section serves multiple functions: it aligns sheets during normal operation, can be moved to clear the sheet removal path, and can rotate to different positions. This multi-functionality reduces the need for separate mechanisms, thereby controlling device complexity
Data Source
AI summary
A sheet processing apparatus includes a stacking section provided on the downstream side of a collecting section in a transport direction outside an apparatus housing, an alignment section provided on the downstream side of the collecting section in the transport direction, above the stacking section, to be able to shift in a predetermined movable region so as to align a sheet width direction orthogonal to the transport direction of the sheet to be stacked on the stacking section, a shaft-direction drive mechanism for shifting the alignment section in the width direction orthogonal to the transport direction, an alignment plate rotation shaft member for axially supporting the alignment section rotatably, a shaft-direction drive source for operating the shaft-direction drive mechanism, and a neat housing for storing the shaft-direction drive mechanism and the alignment plate rotation shaft member inside the housing.