| 摘要 |
PURPOSE:To finely adjust the contacting pressure between a first and a second rollers by providing rods engaged with adjusting screws A and B to adjust the screws, and forming the A and B adjusting screws in a differential screw mechanism having different pitches. CONSTITUTION:A form roller arm is provided with pins 7, 7' on the central line of a shaft of the form roller. Rod blocks 9, 9' which are engaged with A adjusting screws 6, 6' at the end parts of first adjusting screw rods 8, 8' are slidably mounted to the pins 7, 7', respectively. A swing arm has pins 12, 12' slidably mounted on the central line of a shaft of the vibrating dampening roller. Female screws are notched in the pins 12, 12', so that they are meshed with B adjusting screws 10, 10' of the rods 8, 8'. The A adjusting screws 6, 6' and B adjusting screws 10, 10' form a differential screw mechanism with different pitches, and therefore the distance between the centers of the rollers is changed in accordance with the rotation of the rods 8, 8'. |
