Sheet Interval Control in Laminating Systems
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Variations in sheet interval due to factors like sheet conveyance speed fluctuations, toner discharge processes, or image input delays can cause gaps between sheets, leading to adhesive contact with conveyance rollers, potentially damaging equipment and resulting in non-laminated image portions.
Innovation Solution
A laminating system with a hardware processor that adjusts sheet intervals and conveyance speeds to ensure the leading end and trailing end of sheets are superposed before the laminating process, using a second conveyor to align and prepare sheets for uniform lamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If sheets are continuously conveyed from the image forming apparatus, then productivity is improved, but sheet interval variation causes gaps between sheets leading to adhesive contact with rollers and equipment damage
Solution Approach 1:
The system performs preliminary detection of sheet presence and interval measurement before the lamination process. The detection unit identifies whether sheets are present on the conveyance path, and the interval measurement unit measures the distance between adjacent sheets, allowing the system to prepare appropriate control actions in advance to prevent adhesive contact with rollers
Solution Approach 2:
The system implements a feedback control mechanism where the detection unit and interval measurement unit continuously monitor sheet positions, and the control unit adjusts conveyance speeds based on this feedback. When gaps are detected, the system automatically adjusts the conveyance speed of the image forming apparatus or laminating apparatus to eliminate gaps and prevent adhesive contact with rollers
2Productivity
If sheet conveyance speed is increased to improve productivity, then output increases, but sheet interval variation occurs causing gaps and potential equipment damage
Solution Approach 1:
The system dynamically adjusts conveyance speeds based on real-time sheet interval measurements. Rather than maintaining a fixed high speed, the conveyance speed is continuously adapted to maintain uniform sheet intervals, allowing the system to operate at high productivity while preventing gaps through active speed modulation
Solution Approach 2:
The system changes the conveyance speed parameter dynamically based on detected sheet intervals. When gaps are detected, the conveyance speed is adjusted to reduce the interval; when sheets are closely spaced, the speed may be increased. This parameter adaptation maintains both high productivity and interval uniformity
3Productivity
If the laminating apparatus operates continuously without interval adjustment, then productivity is maintained, but adhesive contacts with conveyance rollers causing equipment damage and downtime
Solution Approach 1:
The detection unit continuously monitors sheet presence and the interval measurement unit measures distances between sheets in real-time. This feedback information is fed to the control unit, which adjusts conveyance speeds to prevent gaps, thereby eliminating the harmful effect of adhesive contact with rollers while maintaining continuous operation
Solution Approach 2:
The system takes preliminary anti-action by detecting potential gaps before they cause harmful adhesive contact. The detection and measurement units identify intervals that may lead to gaps, and the control unit preemptively adjusts conveyance speeds to eliminate these potential problems before they result in equipment damage
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach prevents adhesive contact with rollers, ensures continuous lamination, and maintains productivity by reliably overlaying film on sheets with varying intervals, avoiding equipment damage and incomplete lamination.
Implementation Method 1
a hot laminator that causes a laminating member and a sheet to adhere to each other while a heating section is compressing and heating them
Implementation Method 2
a hot laminator that causes a laminating member and a sheet to adhere to each other while a heating section is compressing and heating them
Implementation Method 3
a laminating member having an adhesive layer... the adhesive applied to the laminating member
Data Source
AI summary
A laminating system includes: a laminator that performs a laminating process by overlaying a film on a plurality of sheets conveyed; and a hardware processor that, before the laminating process, adjusts an interval between sheets, the interval varying in an image former, such that a leading end and a trailing end of the sheets conveyed from the image former are superposed or the interval between the sheets conveyed from the image former is reduced.