Roll press machine

A roll press machine that compression-processes a thin film material, the roll press machine comprising:

• a pair of upper and lower press rolls each including an upper roll and a lower roll that are supported by a main bearing at both ends and rotate at a predetermined speed;
• upper and lower bending bearings that are disposed outside each of the main bearings and correct deflection of the press rolls by receiving a bending load;
• and
• two upper reverse operation bending mechanisms provided in the upper roll, and two lower reverse operation bending mechanisms provided in the lower roll, the upper reverse operation bending mechanisms and the lower reverse operation bending mechanisms being installed in the upper and lower bending bearings, respectively, wherein each of the upper and lower reverse operation bending mechanisms operates with hydraulic oil, wherein
• each of the upper reverse operation bending mechanisms includes an upper cylinder unit, the upper cylinder unit having an upper piston and an upper piston rod, each of the lower reverse operation bending mechanisms include a lower cylinder unit, the lower cylinder unit having a lower piston and a lower piston rod,
• each of the upper reverse operation bending mechanisms includes a rotational support portion,
• each of the lower reverse operation bending mechanisms include a rotational support portion,
• each of the upper reverse operation bending mechanisms includes a link portion configured by a power receiving portion that is supported by the rotational support portion, the link portion having ends connected to the upper piston rod on both left and right sides of the upper roll, and a power transmission portion having ends abutting on the upper bending bearing,
• each of the lower reverse operation bending mechanism include a link portion configured by a power receiving portion that is supported by the rotational support portion, the link portion having ends connected to the lower piston rod on both left and right sides of the lower roll, and a power transmission portion having ends abutting on the lower bending bearing,
• the upper and lower pistons and the upper and lower piston rods are operated by a hydraulic pressure of the hydraulic oil to generate power, so that the power receiving portion and the power transmission portion are operated in a see-saw manner to move upward or downward the upper and lower bending bearings abutting on the power transmission unit,
• the deflection occurring in the upper roll and the lower roll is corrected in a manner that the bending load that moves upward the upper bending bearing disposed on the upper roll is applied by causing the upper reverse operation bending mechanism to generate downward power by the hydraulic pressure of the hydraulic oil, and the bending load that moves downward the lower bending bearing disposed on 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,
• the link portion in which an end portion of the power transmission portion abuts on the upper bending bearing is formed in a V shape, and
• the link portion in which the end portion of the power transmission portion abuts on the lower bending bearing is formed in an inverted V shape.