Unloader for synthetic resin molded item

Abstract

Abstract PURPOSE:To obtain a simplified unloader of a synthetic resin molded item, which performs the removal of the molded item from a mold and even its transfer outside a machine by a single driving source, by a structure wherein a vertical unloading arm, which is fixed together with a belt pulley onto a pivot shaft commonly inserted at the tip of a transmission arm, and a belt, which is disposed in tension between a stationary belt pulley and the belt pulley on the fulcrum shaft, are provided. CONSTITUTION:When a driving shaft 2 is pivoted leftwards by means of an electric motor 5, the tip of a transmission arm 1 is lowered. At this time, an unloading arm 6 is also shifted downwards and at the same time kept vertical by the action of a belt 10 disposed in tension between a stationary belt pulley 4 and a belt pulley 8 and lowered until to the position, at which the transmission arm 1 is horizontal. Next, a molded item 16 is released from a mold 15 by inching a sprue with a holder 7. When the driving shaft 2 is pivoted under the state just mentioned above by actuating the electric motor 5 in the opposite direction, the transmission arm 1 is moved rightwards in circular motion so as to raise the unloading arm 6, which is supported at the tip of the transmission arm and which keeps on holding a molded item 16, out of the mold. As the pivoting of the driving shaft 2 continues, the unloading arm 6 supported at the tip of the transmission arm 1 is shifted rightwards while being kept on holding the vertical posture and finally lowered outside a machine and the molded item 16 is released from the holder 7.

Inventors

• 👤 Takatora Takano
• 👤 高野　高虎

Bibliographic Details