Jointed Conveyance Belt Guide Mechanism for Jam-Free Sheet Feeding
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Solution Overview
Problem
Conveyance devices with jointed conveyance belts face issues with sheet misalignment and paper jams due to uneven distances between guides and belt surfaces at joint portions, leading to conveyance failures.
Innovation Solution
A guide mechanism that swings in conjunction with a rotator to adjust its position relative to the conveyance belt, minimizing the distance between the guide and belt surface to prevent sheet misalignment and jams, even with jointed belts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the distance between the leading end of the guide and the surface of the conveyance belt is increased to avoid interference with the protruding joint portion, then the guide does not interfere with the joint, but the sheet may enter between the guide and the conveyance belt causing paper jam or conveyance failure
Solution Approach 1:
The guide is designed to be movable in the conveyance direction rather than fixed. When the joint portion approaches, the guide automatically moves backward to avoid interference, and when the joint passes, the guide returns to its original position. This dynamic adjustment allows the guide to maintain optimal proximity to the belt surface for reliable sheet conveyance while dynamically avoiding interference with the joint portion.
2Object-affected harmful factors
If the joint portion has a concave shape, then the guide can be positioned closer to the belt surface, but the distance between the guide and the conveyance belt increases at the joint portion causing sheet entry
Solution Approach 1:
The guide is designed to be movable in the conveyance direction rather than fixed. When the joint portion approaches, the guide automatically moves backward to avoid interference, and when the joint passes, the guide returns to its original position. This dynamic adjustment allows the guide to maintain optimal proximity to the belt surface for reliable sheet conveyance while dynamically avoiding interference with the joint portion.
3Ease of manufacture
If the belt surface protrudes at the joint portion, then the joint is easier to manufacture, but the distance between the guide and belt surface must be increased reducing conveyance precision
Solution Approach 1:
The guide is designed to be movable in the conveyance direction rather than fixed. When the joint portion approaches, the guide automatically moves backward to avoid interference, and when the joint passes, the guide returns to its original position. This dynamic adjustment allows the guide to maintain optimal proximity to the belt surface for reliable sheet conveyance while dynamically avoiding interference with the joint portion.
Data Source
AI summary
A conveyance device includes a conveyance member, a guide, and a rotator. The conveyance member has a conveyance surface with a joint, the conveyance member to convey an object to be conveyed, with the object on the conveyance surface. The guide approaches the conveyance surface and guides the object from or to the conveyance member. The rotator contacts the conveyance surface. The guide displaces in a direction perpendicular to the conveyance surface, in conjunction with displacement of the rotator when the rotator contacts the joint.