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The working principle of the upper adjusting open mouth rolling mill is detailed explained.
source：m.poltwor.com | Release time：2025-08-21
TThe working principle of the upper adjusting open rolling mill mainly involves controlling the thickness of the rolled material by adjusting the position of the upper, and its core mechanism is as follows:
1. Basic structure
Main components:
Upper/lower working roll: Directly contacts the material to apply pressure and it.
Support roll: Enhances the rigidity of the working roll to prevent bending.
Adjusting device: Usually located on the upper roller (upper adjusting), used to regulate the roll gap (the gap between two rolls).
Driving system: Provides power for the rotation of the rolling rolls.
S and control system: Real-time monitoring of thickness, rolling force, and other parameters to achieve closed-loop control.
2. Working principle
Roll gap adjustment:
The upper adjusting mechanism drives the upper roller to move up and down, changing the size of the roll gap.
Roll gap decreases → Material is compressed more violently Thickness after rolling decreases.
Roll gap increases → Material deformation decreases → Thickness after rolling increases.
Rolling force control:
During rolling, deformation of the material produces a counteracting force (rolling force).
When adjusting the roll gap, the rolling force needs to be balanced to avoid equipment overload or material break.
Automatic thickness control (AGC):
Detection: Real-time monitoring of the exit thickness through laser thickness gauges and rolling force sensors.
back: Data is transmitted to the control system for comparison with the set value.
Adjustment: The system dynamically adjusts the position of the upper roller (such as or retracting the hydraulic cylinder) to compensate for thickness deviations.
Advantages: Eliminates the effects of temperature fluctuations and uneven material hardness, ensuring consistent thickness.
1. Basic structure
Main components:
Upper/lower working roll: Directly contacts the material to apply pressure and it.
Support roll: Enhances the rigidity of the working roll to prevent bending.
Adjusting device: Usually located on the upper roller (upper adjusting), used to regulate the roll gap (the gap between two rolls).
Driving system: Provides power for the rotation of the rolling rolls.
S and control system: Real-time monitoring of thickness, rolling force, and other parameters to achieve closed-loop control.
2. Working principle
Roll gap adjustment:
The upper adjusting mechanism drives the upper roller to move up and down, changing the size of the roll gap.
Roll gap decreases → Material is compressed more violently Thickness after rolling decreases.
Roll gap increases → Material deformation decreases → Thickness after rolling increases.
Rolling force control:
During rolling, deformation of the material produces a counteracting force (rolling force).
When adjusting the roll gap, the rolling force needs to be balanced to avoid equipment overload or material break.
Automatic thickness control (AGC):
Detection: Real-time monitoring of the exit thickness through laser thickness gauges and rolling force sensors.
back: Data is transmitted to the control system for comparison with the set value.
Adjustment: The system dynamically adjusts the position of the upper roller (such as or retracting the hydraulic cylinder) to compensate for thickness deviations.
Advantages: Eliminates the effects of temperature fluctuations and uneven material hardness, ensuring consistent thickness.
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