| 摘要 |
PURPOSE:To facilitate the opening and closing controlling of a discharge hole by a sliding gate by the construction wherein a nozzle and a nozzle support are movable without load resistance in accordance with the movement of the sliding gate in the opening and closing directions. CONSTITUTION:An arm support 18 which is provided freely oscillatably in lateral and vertical directions, an arm 20 which is supported by freely revolvable rollers 19 of the support 18 and is freely movable forward and backward, detaining means 24 which are secured to the arm 20, a sliding block 25 which is fitted loosely to the arm 20 and is freely engageable and disengageable with and from the means 24, a forward and backward moving cylinder 27 which has a rod 26 secured with the block, a nozzle support 22 which is provided at the leading end of the arm and supports the nozzle 12, a feeler guide (horizontal guiding mechanism) 11 which guides the nozzle to the lower part of the receiver 8 in accordance with the forward movement of the arm, and a nozzle guiding frame (upward guiding mechanism) 10 which guides the nozzle up to the nozzle receiver in accordance with the upward movement of the arm support are provided. These are so constituted that the sliding block and the detaining means are held disengaged while the nozzle and the nozzle receiver are held in contact with each other. |
