Sheet Transfer Drum Heads With Tilt and Speed Matching
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Solution Overview
Problem
During the conveyance of sheet materials between curved and planar holding surfaces, significant loads such as shear forces are applied, which can cause damage and affect the precision of the sheet material handling process.
Innovation Solution
A sheet material conveyance device with a combination of first and second holding heads, drums, tilt adjustment mechanisms, and speed adjustment mechanisms that allow for controlled rotation and positioning to minimize load application by adjusting the tilt and relative movement speed of the holding surfaces during the exchange process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If sheet material is exchanged between curved and planar holding surfaces, then conveyance functionality is achieved, but load such as shear force is applied to the sheet material
Solution Approach 1:
The holding surface is designed to dynamically change its curvature from curved to planar and vice versa, rather than being fixed. This dynamic adjustment allows the holding surface to adapt to different conveyance stages, reducing shear force on the sheet material during transitions while maintaining effective conveyance functionality.
Solution Approach 2:
The curvature parameter of the holding surface is changed during operation. By adjusting the curvature from curved to planar configuration, the system reduces the load applied to the sheet material during exchange operations while preserving the ability to convey sheet materials effectively.
2Adaptability or versatility
If holding surface curvature is changed during conveyance, then conveyance adaptability is improved, but precision of sheet material handling deteriorates
Solution Approach 1:
The holding surface curvature is dynamically adjusted based on the specific conveyance stage and requirements. This dynamic adaptation allows the system to maintain high precision during critical handling operations while achieving versatility across different conveyance scenarios.
Solution Approach 2:
The curvature of the holding surface is adjusted in advance before sheet material exchange operations. By pre-positioning the holding surface in the appropriate curvature state, the system ensures precise sheet material handling while maintaining adaptability to different operational requirements.
3Adaptability or versatility
If sheet material is conveyed between curved and planar surfaces, then conveyance flexibility is achieved, but sheet material may become creased
Solution Approach 1:
The holding surface dynamically transitions between curved and planar states in a controlled manner, ensuring smooth sheet material transfer without abrupt changes that could cause creasing. This dynamic adaptation maintains conveyance flexibility while protecting sheet material integrity.
Solution Approach 2:
The system prepares the holding surface curvature in advance to match the sheet material being conveyed, cushioning against potential crease formation by ensuring smooth transitions between different surface configurations during the conveyance process.
Data Source
AI summary
A sheet material conveyance device includes a plurality of first holding heads each having a curved first holding surface, a first drum holding the plurality of first holding heads, a plurality of second holding heads each having a planar second holding surface, a second drum holding the plurality of second holding heads, a tilt adjustment mechanism structured to adjust a tilt of each second holding surface, and a speed adjustment mechanism structured to adjust a relative movement speed of the first holding head and the second holding head. The first holding head and the second holding head move to a delivery position, and deliver the sheet material between the first holding surface and the second holding surface in a situation in which adjustment is performed by the tilt adjustment mechanism and the speed adjustment mechanism.