Abstract: The vertical injection molding machine is provided with an electric servomotor which moves an injection drive unit up and down accompanying the rotation of a driven pulley via a ball screw mechanism, a timing belt by which the drive force of the electric servomotor is transmitted, and a driven pulley on which the timing belt is rotated, wherein an arc groove is formed on the driven pulley, and an election pin is provided which is inserted to the arc groove of the driven pulley when the timing belt is disconnected. When the election pin is inserted to the arc groove, the tip of the election pin applies pressure on an inclined portion by means of elastic force of a spring, slowing the rotational speed of the driven pulley and stopping the injection drive unit by an inner wall surface of the slowed driven pulley colliding with the ejection pin.

Abstract: The vertical injection molding machine is provided with an electric servomotor which moves an injection drive unit up and down accompanying the rotation of a driven pulley via a ball screw mechanism, a timing belt by which the drive force of the electric servomotor is transmitted, and a driven pulley on which the timing belt is rotated, wherein an arc groove is formed on the driven pulley, and an election pin is provided which is inserted to the arc groove of the driven pulley when the timing belt is disconnected. When the election pin is inserted to the arc groove, the tip of the election pin applies pressure on an inclined portion by means of elastic force of a spring, slowing the rotational speed of the driven pulley and stopping the injection drive unit by an inner wall surface of the slowed driven pulley colliding with the ejection pin.

Abstract: A molding machine is provided for easily setting molding conditions. Molding navigation is stored in a microcomputer portion for performing drive control of the molding machine. When the molding navigation is activated, a plurality of setting screens required for setting molding conditions are displayed in a predetermined sequence on a display portion, and in each of the displayed setting screens, setting item display fields to which the molding conditions are to be input are displayed in a color different from the surrounding. An operator inputs predetermined setting values in the displayed sequence in the setting item display fields displayed in the color different from the surrounding. Thereby, the setting of the molding conditions can be completed. All molding conditions required for operating the molding machine can be set exhaustively, and the setting of the molding conditions can be performed highly efficiently and reliably, without special skills.