| 摘要 |
PURPOSE:To perform the positioning between the rib of an upper mold and the rib of a lower mold efficiently and highly precisely by operating a feed screw mechanism provided between a fixed arm and a movable arm to change the distance between the fixed arm and the movable arm. CONSTITUTION:A push bolt 13 on the lower side is loosened, and the push bolt 13 on the upper side is screwed in to push a movable arm 12 to the left with the bolt tip. Thereby, the distance between a fixed arm on the upper side and the movable arm 12 is increased, and the distance between the fixed arm 11 and the movable arm 12 is decreased. That is, a rotary plate 6 is rotated and displaced in the counter-clockwise direction centering a shaft 8. The rotating displacement quantity at this time can be adjusted very finely and correctly by the screwed quantity of the push bolt 13, i.e., the rotating operation quantity of the push bolt 13. That is, the rotary plate 6 can be correctly rotated by the desired angle.
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