Interleaved Extrusion Transfer Rollers Without Gap Spacing
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Solution Overview
Problem
Nonferrous extrusion systems face inefficiencies due to the need for a gap between extrusions to prevent collision during transfer from the runout table to the cooling table, which increases system length and reduces theoretical output, especially in physically limited environments.
Innovation Solution
The implementation of a runout table with interleaved runout and transfer rollers that are vertically and horizontally shiftable, allowing for continuous transfer of extrusions to the cooling table without the need for a gap, utilizing a puller head that moves in unison with the rollers to facilitate this process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a gap is created between successive extrusions to prevent collision during transfer, then extrusion safety is improved, but system length increases and productivity decreases
Solution Approach 1:
The system dynamically adjusts roller positions between runout and cooling table, transitioning from a static gap-based safety approach to a dynamic continuous transfer mechanism. The interleaved rollers alternately engage and disengage to propel extrusions continuously without collision, eliminating the need for stationary gaps while maintaining safety.
Solution Approach 2:
The transfer mechanism enables continuous extrusion transfer without interruption or gap creation. The interleaved roller system ensures that as one roller releases an extrusion, the next roller is already positioned to receive it, maintaining continuous useful action throughout the transfer process and eliminating idle time between extrusions.
2Reliability
If a gap is created between successive extrusions, then collision prevention is achieved, but system footprint increases
Solution Approach 1:
The system transitions from one-dimensional linear spacing (requiring longitudinal gaps) to two-dimensional interleaved positioning. Rollers are arranged in alternating patterns across multiple positions, allowing vertical and lateral movement that utilizes spatial dimensions beyond simple linear distance, thereby preventing collision without increasing overall system length.
Solution Approach 2:
The interleaved roller arrangement creates a nested-like structure where rollers are positioned within each other's operational zones. The runout rollers and cooling table rollers are interlaced in space, with each set operating within the spatial envelope of the other without interference, maximizing space utilization while preventing collision.
3Productivity
If transfer time is reduced, then productivity improves, but transfer reliability may worsen
Solution Approach 1:
The system incorporates sensors and control mechanisms that monitor extrusion position, speed, and roller engagement in real-time. This feedback enables dynamic adjustment of roller activation timing and force, ensuring reliable transfer even at high speeds by continuously adapting to actual extrusion characteristics and transfer conditions.
Solution Approach 2:
The interleaved roller system pre-positions subsequent rollers before previous rollers release extrusions. The alternating roller sequence is prepared in advance, with each roller ready to engage immediately upon the previous roller's release, enabling high-speed transfer while maintaining reliability through pre-coordinated action sequences.
Data Source
AI summary
The specification discloses a nonferrous extrusion system and process providing improved transfer of extrusions from the runout table to the cooling table. The runout table includes interleaved runout rollers and transfer rollers that are vertically shiftable with respect to one another. The transfer rollers additionally are horizontally shiftable between the runout table and the cooling table. The runout table receives extrusions in a longitudinal direction. The vertical and horizontal shifting of the rollers is controlled to transfer the extrusions from the runout table to the cooling table.