Packaging Machine Punching Position Correction via Film Guide Adjustment
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Solution Overview
Problem
Existing PTP packaging machines face challenges in reducing the size and labor required for fabricating packaging packs, as they need additional driving mechanisms to correct punching position shifts in the width direction, which increases machine size and requires manual inspection.
Innovation Solution
A packaging machine with a conveyor system, a punching device, a film position changer, an imager, and calculators to adjust the punching position without moving the entire punching device, allowing for automated inspection and reduced labor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the entire sheet punching device is moved in the width direction to correct the punching position, then the punching position accuracy is improved, but the machine size increases due to the additional driving mechanism
Solution Approach 1:
The patent divides the position correction function into two independent segments: (1) the film feeding roller rotation angle adjustment for correcting punching position in the extending direction, and (2) the guider position adjustment for correcting punching position in the width direction. This segmentation eliminates the need to move the entire punching device, thereby reducing machine size while maintaining punching position accuracy.
Solution Approach 2:
The patent introduces a guider as an intermediary component that can be positioned at different locations to correct the punching position in the width direction. Instead of moving the entire punching device, the guider acts as a mediator to achieve position correction, thereby reducing the machine size while maintaining punching accuracy.
2Ease of manufacture
If manual inspection is used to inspect punched PTP packs, then the inspection process is simple, but labor requirements increase
Solution Approach 1:
The patent replaces the manual inspection process with an imaging device that automatically captures and analyzes images of punched PTP packs. This substitution eliminates the need for manual labor in inspection while maintaining the simplicity of the inspection process through automated image processing.
Solution Approach 2:
The imaging device performs self-inspection by automatically capturing images of the punched packs and analyzing them without human intervention. The system serves itself by autonomously detecting and reporting any issues with the punched packs, thereby reducing labor requirements while maintaining inspection effectiveness.
Data Source
AI summary
A packaging machine includes an imager that images a packaging pack punched by a punching device, and a control device. The control device includes a position shift amount calculator that calculates, on the basis of a packaging pack image of the packaging pack captured by the imager, a punching position shift amount of a punching position of a pack film, a punching position correction amount calculator that calculates, from the punching position shift amount, a punching position correction amount with respect to the punching position of the pack film, a slit position controller that adjusts, on the basis of the punching position correction amount, a rotation angle of a film feeding roller, and a film guide position controller that adjusts, on the basis of the punching position correction amount, the position of a film guide.