Cross-Rolling Roll Pass Adjustment During Rolling
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Solution Overview
Problem
Existing cross-rolling units struggle to achieve the best possible rolling results due to limitations in adjusting the roll pass during the rolling process, particularly in response to changing rolling parameters and workpiece geometry.
Innovation Solution
The cross-rolling unit incorporates a roll-positioning apparatus with a housing-connected part and a roller-mill-connected part that can be adjusted relative to each other, allowing for dynamic adjustment of the roll pass during rolling, facilitated by hydraulic cylinders and mandrel position adjusting apparatuses, and utilizing multi-variable control systems to monitor and respond to measured variables.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the roll pass is fixed during rolling, then the device structure is simple, but the rolling result cannot be optimized for changing parameters
Solution Approach 1:
The patent implements dynamic adjustability of the roll pass by enabling relative movement between the housing-connected part and roller-mill-connected part of the roll-positioning apparatus during rolling. This allows the roll pass to be dynamically adapted to changing rolling parameters while maintaining a relatively simple structural design through the use of movable connections rather than completely reconfigurable systems.
2Manufacturing precision
If the roll pass is adjusted during rolling, then the rolling result is improved, but the risk of sticking increases
Solution Approach 1:
The patent employs a multi-variable control system that continuously monitors rolling conditions and provides feedback to adjust the roll pass position. This closed-loop control ensures precise adjustment while preventing sticking by detecting and responding to changing rolling parameters in real-time, maintaining reliable operation throughout the rolling process.
3Measurement precision
If both rolls are mounted to be adjustable, then the roll pass alignment is more precise, but the device complexity increases
Solution Approach 1:
The patent divides the adjustment system into separate roll-positioning apparatuses for each roll, with each apparatus comprising a housing-connected part and a roller-mill-connected part. This segmentation allows independent adjustment of each roll while maintaining overall system simplicity through modular design, achieving precise roll pass alignment without requiring a completely complex integrated adjustment mechanism.
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
This enables precise and adaptive adjustment of the roll pass to changing rolling conditions, enhancing the rolling process by minimizing sticking risks and ensuring a fault-free operation with improved rolling forces and geometry control.
Implementation Method 1
a drive of the roll-positioning apparatus comprises a housing-connected part and a roller-mill-connected part which can be moved relative thereto during rolling
Data Source
AI summary
A cross-rolling unit and a method for setting the roll pass of a cross-rolling unit, having at least two rolls and a roll housing, in which at least one of the rolls is mounted such that its position can be adjusted in order to change the roll pass, allow the roll pass to be adjusted by means of a roll-positioning apparatus even during rolling, which roll-positioning apparatus is characterized by a housing-connected part and a roller-mill-connected part, which can be moved relative to the housing-connected part during rolling, which parts can be repositioned relative to each other, and/or which roll-positioning apparatus characterized by a drive which is dimensioned in such a way that rolling forces can be applied.