Movable Roll Wrap Feed Arrangement for Agricultural Harvester
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Solution Overview
Problem
Crop harvesting machines face issues with wrap mis-feed during the wrapping cycle, leading to improper wrapping, equipment downtime, and waste of wrapping material, due to mis-guidance or incorrect orientation of wrapping material into the module-forming chamber.
Innovation Solution
A wrap feed arrangement is introduced, featuring a conveyor system with movable rolls and endless members that engage for opposed rotation, creating a pinch location to guide the wrapping material accurately into the module-forming chamber, ensuring proper wrapping and preventing mis-feed events.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the wrapping material is fed into the module-forming chamber using a fixed conveyor system, then the structure is simple, but mis-feed events occur due to improper guidance or incorrect orientation of the wrapping material
Solution Approach 1:
The patent applies the dynamics principle by making the conveyor roll movable rather than fixed. The roll can be positioned in different locations along the module-forming chamber, allowing the system to adapt its configuration based on operational needs. This dynamic positioning capability enables the conveyor to guide wrapping material more accurately while maintaining operational flexibility, thereby improving wrapping reliability without requiring a completely complex fixed structure.
Solution Approach 2:
The patent introduces an intermediary element in the form of a movable roll that acts as a mediator between the wrapping material supply and the module-forming chamber. This intermediary roll provides a controlled interface for feeding the wrapping material, ensuring proper guidance and orientation. By using this intermediary mechanism, the system achieves more reliable wrapping while keeping the overall structure manageable through the use of a single movable component rather than a fully complex guided system.
2Reliability
If the wrapping material is manually guided into the module-forming chamber, then the equipment complexity is low, but mis-feed events occur leading to equipment downtime and wasted wrapping material
Solution Approach 1:
The patent implements a movable conveyor roll that can be dynamically positioned to optimize the feeding of wrapping material into the module-forming chamber. This dynamic adjustment capability ensures consistent and accurate wrapping by allowing the roll to be positioned where it can best guide the material, thereby improving wrapping consistency while maintaining relatively simple feed mechanism complexity through a single movable component rather than a fully automated complex system.
3Reliability
If a fixed roll position is used in the conveyor system, then the device complexity is reduced, but the wrapping material cannot be properly guided during wrapping operations
Solution Approach 1:
The patent applies the dynamics principle by implementing a movable roll that can be positioned at different locations along the module-forming chamber. This single movable roll provides the necessary flexibility to guide wrapping material accurately during wrapping operations. The roll can be moved to optimal positions to ensure proper material guidance while keeping the positioning mechanism relatively simple, avoiding the need for complex multi-component positioning systems.
Data Source
AI summary
A wrap feed arrangement is disclosed for an agricultural harvester having a module-forming chamber. The arrangement includes a conveyor arrangement, which delivers crop to the module-forming chamber, and a module-forming arrangement which, at least in part, builds the module. The conveyor arrangement has a first roll and a first endless member disposed about the first roll for rotation. The module-forming arrangement has a second roll and a second endless member disposed about the second roll for rotation. At least one of the first and second rolls is movable from a first position in which the first and second endless members are disengaged to a second position in which the first and second endless members are engaged.