Automated Sheet Loading Plane for Printing Machines
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Solution Overview
Problem
Existing apparatus for supplying sheets to a printer work plane are labor-intensive, complex, and inefficient, with manual labor costs being high due to the need for manual handling and the use of lifts that reduce stack height and complicate operator work, especially when handling multiple panels.
Innovation Solution
A vertically mobile loading plane with a closed-loop conveyor system that automatically detects panel height and transfers panels from a stack to the work plane, eliminating the need for manual lifting and optimizing panel positioning and transfer, allowing for continuous or step-fashion operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual labor is used to position panels on the loading plane, then flexibility in handling different panel configurations is maintained, but labor costs increase and productivity decreases due to operator fatigue
Solution Approach 1:
The system enables self-service through the combination of the lift that automatically positions panels and the detection means that autonomously identify panel characteristics. The loading plane and gripping means work together to transfer panels without manual intervention, allowing the system to serve itself in positioning and handling tasks while maintaining adaptability to different panel configurations through automated detection and adjustment.
2Extent of automation
If a lift is used to supply panels to the loading plane, then panel transfer is automated, but the lift reduces the height of the panel stack and complicates operator work
Solution Approach 1:
The loading plane acts as an intermediary element between the stack of panels and the work plane. It receives panels from the stack (which remains at its original height), positions them temporarily, and then transfers them to the work plane. This intermediary approach allows automated transfer without requiring the stack itself to be lowered or repositioned, thereby maintaining stack height while achieving automation.
3Duration of action of moving object
If multiple stacks of panels are loaded onto the loading plane, then continuous supply is possible, but the complexity of the system increases and manual labor is required to manage the stacks
Solution Approach 1:
The system achieves continuous supply through the cyclic operation of the loading plane and the coordinated action of gripping means. While one panel is being transferred to the work plane, the loading plane can already position the next panel from the stack. This continuous cyclic operation eliminates idle time and maintains uninterrupted panel supply without requiring complex multi-stack management or additional manual intervention.
Data Source
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AI summary
An apparatus for supplying sheets to a printing machine (100) which comprises: a sliding work plane (L) moving in outward (N1 ) and return (N2) runs, so as to subject one or more sheets, arranged thereon, to action of printing means; at least a station (S), in which the work plane pauses, provided with gripping means (MP) for transferring the sheets from the apparatus to the work plane, with the work plane paused in the station (S); the apparatus comprising: a gantry (1 ) which bears a loading plane (3) positioned by a side of the pause station (S) and made vertically mobile from a first variable-height operating position (K), and a second fixed operating position (Q) flanked to the pause station (S); a receiving station (70) of a stack (15) of sheets, positioned by a side of the gantry on an opposite side with respect to the work plane (L), the height of the head sheet (200A, 300A) of the stack defining the first operating position (K); sheet gripping and transfer means (M), borne by the work plane, destined, with the work plane in the operating position (K), to grip the head sheet of the stack and transfer it onto the work plane (3).