Sheet Folding Apparatus Real-Time Fold Position Adjustment
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Solution Overview
Problem
Conventional sheet folding apparatuses face inefficiencies and labor-intensive adjustments when fold positions become misaligned, often requiring the apparatus to be stopped, leading to wasted sheets and reduced operational efficiency.
Innovation Solution
A sheet folding apparatus equipped with a control section that independently adjusts the positioning ruler and guides using driving mechanisms, allowing for real-time correction of fold positions without stopping the machine, by moving the positioning ruler perpendicular to the conveying direction and synchronizing the movement of guides accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the apparatus is stopped to adjust fold positions, then alignment precision is improved, but productivity deteriorates
Solution Approach 1:
The patent applies the dynamics principle by making the guides movable rather than fixed. The first and second guides can be independently adjusted in the conveying direction while the apparatus operates, allowing real-time correction of fold positions without stopping the machine. This dynamic adjustment capability resolves the contradiction by enabling both precision alignment and continuous operation.
Solution Approach 2:
The control section performs preliminary action by automatically calculating and determining the adjustment amounts for the guides based on detection information about misalignment. This preliminary calculation allows the system to proactively correct fold position errors before they result in wasted sheets, maintaining both precision and productivity.
2Manufacturing precision
If manual adjustment of guides is performed, then alignment precision is improved, but labor requirements increase
Solution Approach 1:
The system applies self-service principle through automatic detection and control. The detection device automatically identifies fold position misalignment, and the control section automatically calculates and executes the necessary guide adjustments. This eliminates manual measurement and adjustment operations, reducing labor requirements while maintaining high alignment precision.
Solution Approach 2:
The patent implements feedback control where detection information about fold position alignment is continuously monitored and fed back to the control section. Based on this feedback, the control section automatically determines the required adjustment amounts and actuates the guides accordingly, creating a closed-loop system that maintains precision without manual intervention.
3Manufacturing precision
If the positioning ruler is moved to correct misalignment, then fold position accuracy is improved, but device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the adjustment function into two independent parts: the positioning ruler and the guides. The positioning ruler can be moved perpendicular to the conveying direction, while the first and second guides can be independently adjusted parallel to the conveying direction. This segmentation allows flexible, targeted corrections without requiring complex coordinated movement of all components, thus improving accuracy while managing device complexity.
Data Source
AI summary
A sheet conveying section (B) sequentially conveys a sheet (P) from a sheet feeding section (A), and a sheet folding section (D) folds the sheet (P) received from the sheet conveying section (B) in a conveying direction. The sheet conveying section (B) comprises a conveyer belt (3), and a positioning ruler (4) for positioning the sheet (P) while it is conveyed. The sheet folding section (D) comprises a folding knife (9), a pair of folding rollers (10), and first and second guides (11a, 11b) arranged on either side of the folding knife (9). The sheet (p) is positioned to a fold position by the first and second guides (11a, 11b) and folded by the folding knife (9) and the folding roller (10). The positioning ruler (4) is moved in a direction perpendicular to the conveying direction by a first driving mechanism (5, 6). The first and second guides (11a) are moved in the direction perpendicular to the conveying direction respectively by second and third driving mechanisms (21, 22; 23, 24). Control section (32) moves the first and second guides (11a, 11b) in conjunction with the movement of the positioning ruler (4) and moves the second guide (11b) with conjunction with the movement of the first guide (11a) and allows the independent movement of the second guide (11b).