Abstract: A method for injection molding of resin or rubber at an insert positioned in a lower mold injects and fills melted resin or rubber into a cavity of an upper mold through a gate. The lower metal mold has a flexible supporting member supporting the mold insert. The supporting member is vertically movable in a recess formed on the upper surface of the lower mold. The underside thereof is supported by the tip ends of shafts of pressing members that operate independently. The movable supporting member is moved while being pressed by the respective shafts of the pressing members to the upper mold at a plurality of positions. The resin or rubber is molded when the upper surface of the insert uniformly contacts the underside of the upper mold by bending of the movable supporting member.

Abstract: An insert molding method and mold has an upper mold and a lower mold disposed to oppose each other. The cavity at the upper mold side is filled with molten resin or rubber material injected through a gate to perform injection molding of the resin or rubber around an insert set at the lower mold side. A movable supporting member sets the insert, and is fitted in a recessed part formed on the upper face of the lower mold. The position of the center of gravity at the lower face of the movable supporting member is supported and pressed towards the upper mold side by the tip of a shaft of a pressing mechanism. A gap is between the side face part of the recessed part and the side face part of the movable supporting member to cause the movable supporting member to tilt about the point at which the movable supporting member is pressed and supported by the shaft inside the recessed part so that the upper face of the insert will be in uniform surface contact with the lower face of the upper mold.

Abstract: The present invention relates to an insert molding method for injection molding of resin or rubber at an insert set in a lower mold by injecting and filling melted resin or rubber into a cavity of an upper mold through a gate in a state where the upper mold and lower mold are disposed so as to be opposed to each other, and the invention relates to a metal mold therefor, wherein a movable supporting member having flexibility, on which the above-described insert is placed, is vertically movably disposed in a recess formed on the upper surface of the above-described lower mold, and the underside thereof is supported by the tip ends of shafts of a plurality of pressing means that independently operate, and the corresponding movable supporting member is moved while being pressed by the respective shafts of the corresponding pressing means to the upper mold at a plurality of positions, and molding is carried out in a state where the upper surface of the above-described insert is uniformly brought into contact with

Abstract: An insert molding method and mold has an upper mold and a lower mold disposed to oppose each other. The cavity at the upper mold side is filled with molten resin or rubber material injected through a gate to perform injection molding of the resin or rubber around an insert set at the lower mold side. A movable supporting member sets the insert, and is fitted in a recessed part formed on the upper face of the lower mold. The position of the center of gravity at the lower face of the movable supporting member is supported and pressed towards the upper mold side by the tip of a shaft of a pressing mechanism. A gap is between the side face part of the recessed part and the side face part of the movable supporting member to cause the movable supporting member to tilt about the point at which the movable supporting member is pressed and supported by the shaft inside the recessed part so that the upper face of the insert will be in uniform surface contact with the lower face of the upper mold.