STAMPING MOLD AND STAMPING MOLDING METHOD

摘要

PURPOSE:To enhance the flowability of the resin in a mold at a time of molding. CONSTITUTION:A stamping mold has a pair of upper and lower molds meshed each other so as to form a cavity and the gate 10 guiding a resin 5 to the cavity surface 2a of the lower mold 2 is formed to the lower mold 2. An extruder not shown in a drawing is allowed to communicate with the gate 10 through a resin supply passage 8 in order to supply the resin 5. The gate blocking means 11 blocking the gate 10 is provided in the resin supply passage 8 and the supply of the resin 5 is stopped by driving the gate blocking means 11. The injection port injecting gas 6 into the resin 5 is provided in the vicinity of the gate 10 and communicates with the interior of the lower mold 2 through a gas supply means not shown in the drawing having a gas supply passage 7.