Sheet Processing Apparatus Single Motor Drive Synchronization
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Solution Overview
Problem
Conventional sheet processing apparatuses for saddle stitch binding are complex and costly, with a dual motor system that requires sophisticated control to match the movement speed of the traveling body and folding rollers, often resulting in wrinkles or breaks in the folded sheet bundle.
Innovation Solution
A sheet processing apparatus with a common drive source for a pressing rotation member and a holder that moves along the fold line, ensuring the holder's movement speed matches the circumferential speed of the pressing rotation member, simplifying the structure and reducing manufacturing costs while preventing damage to the folded sheet.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If two different motors are used to drive the traveling body and the folding roller, then the creasing process can be performed, but the structure of the apparatus becomes complicated and manufacturing cost increases
Solution Approach 1:
The patent combines the drive functions of the traveling body 853 and the folding roller 85 into a single motor M4. The motor M4 drives both components through a integrated transmission mechanism, eliminating the need for a separate motor M5 and its associated control system. This merging of drive functions directly reduces device complexity and manufacturing cost while maintaining the creasing process capability.
2Device complexity
If the movement speed of the traveling body is not matched to the circumferential speed of the folding roller, then the creasing process is simplified, but wrinkles or breaks occur in the sheet bundle causing damage
Solution Approach 1:
By using a single motor M4 to drive both the traveling body 853 and the folding roller 85 through an integrated transmission system, the patent ensures that the movement speed of the traveling body is automatically matched to the circumferential speed of the folding roller. This mechanical coupling eliminates the need for complex electronic speed control systems while preventing wrinkles and breaks in the sheet bundle through synchronized movement.
3Reliability
If the traveling body changes direction on the fold line, then the creasing process can be completed, but wrinkles or breaks occur if direction change and reverse rotation are not synchronized
Solution Approach 1:
The integrated drive system using a single motor M4 ensures that when the traveling body 853 changes direction on the fold line, the folding roller 85 automatically reverses rotation in perfect synchronization. The mechanical connection through the transmission mechanism eliminates the need for separate control systems, ensuring that direction changes and reverse rotations are always coordinated to prevent wrinkles and breaks while completing the creasing process.
Data Source
AI summary
Provided is a sheet processing apparatus including: a pressing rotation member rotating while pressing a folded sheet bundle; a hold member movable along a fold line of the folded sheet bundle, for holding the pressing rotation member; a common drive source; and a drive transfer member for transferring a drive from the common drive source to the pressing rotation member and the hold member.