Segmented Breaker Roll for Coil Width Adaptation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing uncoiler machines fail to effectively eliminate or minimize coil breaks in metal strips, especially when dealing with varying coil widths and diameters, as they often require a fixed roll configuration that cannot adjust to accommodate different sizes, leading to interference and incomplete removal of coil marks.
Innovation Solution
A segmented breaker roll apparatus with a main center roll and independently traversing narrow rolls, actuated by hydraulic cylinders, which can extend or retract to accommodate various coil widths and diameters, applying a controlled force to minimize coil breaks by tracking the coil's outside diameter and adjusting the number of rolls in contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed width breaker roll is used, then it can accommodate a specific coil width, but it cannot accommodate varying coil widths and diameters
Solution Approach 1:
The breaker roll is divided into multiple independently movable segments that can be adjusted to match different coil widths. Each segment can be positioned separately, allowing the roll to adapt to various coil dimensions without requiring a completely different roll for each size.
Solution Approach 2:
The breaker roll segments are designed to be dynamically adjustable during operation. Hydraulic or mechanical actuation systems enable the segments to move in and out, extending or retracting to accommodate the changing coil diameter as the coil pays off, maintaining continuous contact with the coil outer diameter.
2Reliability
If a wide face breaker roll is used for wide coils, then it can eliminate coil breaks, but it interferes with uncoiler heads when coils are narrow
Solution Approach 1:
The breaker roll is segmented into multiple independently controllable sections. When processing narrow coils, only the central segments are extended into contact with the coil, while the outer segments are retracted to clear the uncoiler heads. This selective extension prevents interference while maintaining coil break elimination capability.
Solution Approach 2:
The breaker roll segments can dynamically extend and retract based on real-time coil width and position. As the coil diameter decreases during payoff, the segments adjust their extension to maintain contact with the coil outer diameter without interfering with the uncoiler heads, ensuring continuous reliable operation.
3Device complexity
If the breaker roll remains fixed as coil diameter decreases, then the structure is simple, but the roll cannot maintain proper contact with the coil
Solution Approach 1:
The breaker roll segments are equipped with actuation mechanisms that automatically adjust the roll's contact position as the coil diameter decreases. This dynamic adjustment ensures the breaker roll maintains proper contact with the coil outer diameter throughout the entire payoff process, preserving manufacturing precision without excessive complexity.
Solution Approach 2:
The system incorporates feedback mechanisms that monitor coil diameter and position, automatically adjusting the breaker roll segment extension to maintain optimal contact. This closed-loop control ensures continuous coil break elimination capability while adapting to changing coil dimensions during the uncoiling process.
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 apparatus effectively eliminates or controls coil breaks throughout the uncoiling process, ensuring uniformity and preventing roll interference with uncoiler heads, regardless of coil size, resulting in a higher-quality end product with adjustable force application from 2,000 lbs to 38,000 lbs.
Implementation Method 1
The breaker rolls are actuated by hydraulic cylinders
Data Source
AI summary
A breaker roll apparatus assembly for minimizing coil breaks in strips has a frame, a center roll extending from a rail mounted to the frame and actuated by a hydraulic cylinder, and a plurality of side rolls positioned on opposite sides of the center roll. The plurality of rolls extend from rails mounted to the frame and are also actuated by hydraulic cylinders. A coil mounting member uncoils a coil of strip through the assembly into contact with the center roll and at least one of the side rolls. Each of the rolls can be raised and lowered to accommodate various diameters and widths of coil.