Jointed Billet Push Rod Assembly for Buckling-Free Pushout
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Solution Overview
Problem
Existing billet pushout systems in industrial heating lines face issues with buckling and reduced service life due to short length pushout rods and repetitive coiling/spooling, which limits the magnitude of billet push force and requires complex electromechanical systems susceptible to multiple point failures.
Innovation Solution
A revolute jointed pushout rod assembly using long length pushout rods that can flex and arcuately store, reducing buckling and eddy current heating, with a nose adaptor for smooth billet movement and even force distribution, allowing for robust billet pushout and efficient linear storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If short length pushout rods are used to allow coiling and spooling on storage reels, then the pushout rod assembly can be stored compactly, but the magnitude of billet push force is limited and buckling occurs between adjacent pushout rods
Solution Approach 1:
The pushout rod assembly is divided into multiple individual pushout rods linked by revolute joints, allowing the assembly to be segmented for storage while maintaining sufficient length of individual rods to prevent buckling during operation
Solution Approach 2:
The revolute joints between pushout rods provide dynamic flexibility, allowing the assembly to coil and spool during storage and deployment while maintaining structural integrity during billet pushing operations
2Ease of operation
If short length pushout rods are used in joined assemblies, then the assembly can be wound on storage reels, but service life is reduced due to stress failure of joints
Solution Approach 1:
The assembly is segmented into modular pushout rods that can be independently replaced if damaged, extending overall system service life through component-level maintenance
Solution Approach 2:
The revolute joints are designed with sufficient rod length and appropriate joint positioning to cushion and distribute stresses during coiling and spooling operations, preventing premature stress failure
3Device complexity
If conventional pushout rod assemblies are used without revolute joints, then the system is simpler, but reliability is reduced due to multiple point failures in electromechanical systems
Solution Approach 1:
The patent replaces complex electromechanical coupling mechanisms with simple passive revolute joints between pushout rods, eliminating multiple potential failure points while maintaining functional capability
Solution Approach 2:
The pushout rod assembly is segmented into independent rod elements connected by simple mechanical joints, allowing localized failure isolation and maintaining overall system reliability
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
The solution enhances the billet pushout system's robustness by reducing buckling and extending service life, enabling higher billet push forces while minimizing eddy current heating and allowing for efficient storage and deployment of the pushout rods.
Implementation Method 1
application of a sufficiently greater billet pushout rod assembly force F2
Implementation Method 2
electric induction heated prior to forging
Implementation Method 3
eddy current heating of the pushout rod when in the presence of an electromagnetic field generated by an inductor
Data Source
AI summary
A billet pushout system is provided for an electric induction billet heating line with long length revolute jointed pushout rods forming a non-jamming pushout rod assembly that is stored in a linear enclosure connected to an arcuate enclosure that deploys and retracts the pushout rod assembly to and from the electric induction billet heating line.