Pouch-Making Machine Driven Roller Shift for Film Alignment
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Solution Overview
Problem
Existing pouch-making machines face complexity in correcting misalignment of print designs on film materials, with existing solutions only allowing for correction in either the longitudinal or transverse direction, and requiring intricate configurations.
Innovation Solution
A controller for a pouch-making machine that includes a driven roller shift unit and a control unit, utilizing an image-shooting unit to adjust the positions of driven rollers, allowing for independent shifting to align reference marks on film materials, thus correcting misalignment in both feed and width directions with a simple configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a rotary support shaft is added to enable transverse direction correction, then misalignment correction capability is improved, but device complexity increases
Solution Approach 1:
The correction system is segmented into independent directional components: the first driven roller handles longitudinal direction correction by shifting along the feed direction, while the second driven roller handles transverse direction correction by shifting along the width direction. This segmentation allows each roller to correct misalignment in its specific direction without requiring complex rotary mechanisms, thus improving adaptability while maintaining simple device configuration.
2Adaptability or versatility
If multiple dancer rollers are moved to enable longitudinal direction correction, then misalignment correction capability is improved, but device complexity increases
Solution Approach 1:
The invention extracts the correction function from complex multi-roller mechanisms and concentrates it into a single driven roller that can shift in the longitudinal direction. This driven roller is positioned to work independently with the feed roller, eliminating the need for multiple dancer rollers and their associated complex control mechanisms, thereby achieving longitudinal direction correction with simplified device configuration.
3Adaptability or versatility
If independent driven rollers with shift capability are used, then both longitudinal and transverse misalignment correction is enabled, but device complexity increases
Solution Approach 1:
The invention merges the correction functions for both longitudinal and transverse directions into the driven roller assembly that already exists in the pouch-making machine. The first driven roller merges with the feed roller system to provide longitudinal correction, while the second driven roller merges to provide transverse correction. This merging approach enables bidirectional correction capability without adding entirely new complex mechanisms, as the correction functions are integrated into the existing roller structure.
Data Source
AI summary
A controller for a pouch-making machine for manufacturing a pouch while feeding a pair of film materials each provided with a reference mark that indicates a reference position for layering the film materials together, includes a driven roller shift unit for independently shifting each shaft of a pair of driven rollers that rotate being driven by the pair of film materials being fed and a control unit for controlling the driven roller shift unit based on a result of an image-shooting unit shooting images of the reference marks, so that positions of the reference marks provided on the pair of film materials coincide.