Roll Press Bending Mechanism for Deflection Correction in Compact Housings
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Solution Overview
Problem
Conventional roll press machines experience increased size and cost when attempting to correct roll deflection for higher linear pressure processing due to the need for larger cylinders to apply increased bending loads, which complicates the correction mechanism.
Innovation Solution
The roll press machine incorporates a reverse operation bending mechanism with hydraulic oil operation, allowing for upward and downward power generation to correct roll deflection without increasing machine size by utilizing a see-saw operation and link portions to effectively distribute hydraulic pressure, thus maintaining compactness and cost-effectiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the bending load applied to the bending bearing is increased to correct roll deflection for higher linear pressure processing, then the deflection correction effectiveness is improved, but the cylinder size and machine housing size increase, leading to increased cost
Solution Approach 1:
The patent inverts the conventional hydraulic operation direction. Instead of supplying hydraulic oil from the piston rod side to move the piston and piston rod to the head side, the hydraulic oil is supplied from the head side to move the piston and piston rod to the rod side. This reverse operation eliminates the need for a large cylinder to accommodate piston movement to the head side, thereby preventing machine housing size increase while maintaining effective deflection correction capability
Solution Approach 2:
The patent utilizes the spatial dimension created by the reverse operation mechanism. By changing the direction of hydraulic oil supply and piston movement, the mechanism effectively uses the rod side space instead of requiring additional head side space, allowing deflection correction without increasing machine housing volume
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 solution enables effective deflection correction in roll press machines without enlarging the machine housing, maintaining operational efficiency and reducing costs by optimizing the use of hydraulic pressure and machine layout.
Implementation Method 1
operates with hydraulic oil... by hydraulic pressure of the hydraulic oil
Data Source
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AI summary
In order to solve the above problems, according to the present invention, a roll press machine includes a pair of upper and lower press rolls (2a,2b) each including an upper roll and a lower roll that are supported by a main bearing (1a1,1a2,1b1,1b2) at both ends and rotate at a predetermined speed, upper and lower bending bearings (3a1,3a2,3b1,3b2) that are disposed outside each of the main bearings and correct deflection of the press rolls by receiving a bending load, and an upper reverse operation bending mechanism provided in the upper roll that operates with hydraulic oil, and a lower reverse operation bending mechanism provided in the lower roll, two upper reverse operation bending mechanisms and two lower reverse operation bending mechanisms being installed in the upper and lower bending bearings, respectively. Deflection occurring in the upper roll and the lower roll is corrected in a manner that a bending load that moves upward the upper bending bearing disposed in the upper roll is applied by causing the upper reverse operation bending mechanism to generate downward power by hydraulic pressure of the hydraulic oil, and a bending load that moves downward the lower bending bearing disposed in the lower roll is applied by causing the lower reverse operation bending mechanism to generate upward power by the hydraulic pressure of the hydraulic oil.