Sheet Folding Apparatus Guide Plate Positioning Control
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Solution Overview
Problem
Conventional sheet folding apparatuses often fail to accurately fold sheets at a predetermined position due to misalignment caused by contact between the sheet's side edge and the buckle's bar during feeding, leading to production defects.
Innovation Solution
A sheet folding apparatus with a control section that calculates and sets the guide plate's position based on sheet size and buckle bar data to ensure the sheet's side edges are separated from the buckle's bars by a predetermined distance, preventing contact and ensuring accurate alignment at the folding position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the sheet is fed into the buckle during the sheet folding operation, then the sheet folding function is achieved, but the sheet may contact the bar of the buckle causing misalignment and folding position deviation
Solution Approach 1:
The guide plate serves as an intermediary element between the sheet and the buckle bar. It actively positions the sheet to prevent contact with the bar while maintaining proper feeding into the buckle, thus eliminating the harmful contact without compromising the folding function
Solution Approach 2:
The guide plate position is determined in advance through arithmetic processing that calculates the optimal position based on sheet size and buckle bar position. This preliminary positioning ensures the sheet is correctly aligned before it enters the buckle, preventing contact issues during the folding operation
2Manufacturing precision
If the guide plate position is fixed based on conventional methods, then the apparatus structure is simple, but the sheet folding position deviates occasionally due to contact with the buckle bar
Solution Approach 1:
The invention replaces manual adjustment mechanisms with an automated control system that uses arithmetic processing to determine guide plate position. This substitution of mechanical adjustment with computational calculation achieves higher precision while reducing the need for complex mechanical adjustment devices
Solution Approach 2:
The guide plate position is dynamically determined based on parameters such as sheet size and buckle bar position. By changing the position parameter calculated through arithmetic processing, the system adapts to different sheet dimensions and maintains precise folding without contact with the bar
3Productivity
If operator adjustment is used to correct folding position deviation, then flexibility is maintained, but productivity is reduced due to manual intervention
Solution Approach 1:
The control section performs self-service by automatically calculating and determining the guide plate position based on sheet size and buckle bar position data. This eliminates the need for operator intervention while maintaining high folding position accuracy, thus improving productivity without sacrificing precision
Solution Approach 2:
The system uses feedback from sheet size data and buckle bar position data to automatically adjust the guide plate position through arithmetic processing. This closed-loop approach ensures consistent folding accuracy without manual intervention, maintaining both high productivity and precision
Data Source
AI summary
A paper folding device is configured so that a folding line is always formed at a predetermined position of paper sheets. A paper supply section is provided with a conveyor belt for conveying paper sheets (P) sequentially supplied from a paper sheet stack. A guide plate (4) for aligning the positions of the conveyed paper sheets is provided on a conveying surface of the conveyor belt. A paper folding section has a buckle (10) comprising an outer frame (11) and bars (12) which extend between opposite sides (11a, 11b) of the outer frame and are arranged at intervals from each other. Paper sheet introducing gaps extended in the direction of the length of the bars are provided in the buckle. Before the start of paper folding operation, a control section calculates and processes data relating to the size of paper sheets and data relating to the position of the bars, so that the distance to the guide plate from a reference point in the direction perpendicular to the conveying direction (R) is set to a value with which a side edge of each paper sheet introduced into the paper sheet introducing gaps in the buckle is separated by a distance not less than a predetermined level from a side edge of a bar located closest to the side edge of the paper sheet. Then, the control section sets the position of the guide plate according to the set value.