Image Surface Lamination With Curl and Misalignment Correction
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Solution Overview
Problem
Existing laminating devices face issues with sheet curling due to printing conditions and environment, leading to quality degradation, increased load on printing processing, and waste of expensive laminate film due to misalignment and manual adjustments.
Innovation Solution
An image processing system with an integrated reader and laminator that includes decurlers, sheet position changers, and purge ejection mechanisms to automatically correct sheet curl, misalignment, and defects, reducing manual intervention and film waste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manual adjustment is performed to correct sheet curl, then lamination quality is improved, but processing time increases and productivity decreases
Solution Approach 1:
The system uses an image reading section to automatically detect sheet curl and a control section to automatically adjust the sheet position before lamination, eliminating the need for manual intervention. The apparatus performs self-correction of sheet positioning issues through automated feedback control.
2Measurement precision
If mark image is printed for position adjustment, then image position accuracy is improved, but printing load increases and output quality deteriorates
Solution Approach 1:
The system extracts the position detection function from the printing process by using a separate image reading section to read the actual printed image. This eliminates the need to embed mark images in the printed output, thereby removing the additional printing load and potential quality degradation while maintaining position detection capability.
3Productivity
If lamination is performed on curled sheet, then processing speed is maintained, but lamination quality deteriorates due to jamming and folding
Solution Approach 1:
The system performs preliminary detection of sheet curl using the image reading section before the lamination process. The control section then adjusts the sheet position in advance to compensate for curl, ensuring the sheet is properly positioned before entering the lamination section. This preliminary correction prevents jamming and folding during lamination while maintaining processing speed.
Data Source
AI summary
An image processing system includes a reader that reads an image surface of a flat cut sheet on which an image is formed; and a laminator that is arranged on the downstream side of the reader in a conveyance direction of the flat cut sheet and laminates an image surface of the flat cut sheet.