| 摘要 |
PURPOSE: An air venting device is provided to prevent voids from being created in an article by allowing air to be easily discharged through an upper air discharging scratch and a lower air discharging scratch. CONSTITUTION: Molding material is filled in a cavity(4) of a mold. Air is naturally discharged through a lower insertion member(5). However, air is trapped at a lower portion of a center insertion member(11). In this case, air is discharged to an exterior through a lower air discharging scratch(8) and an inner air discharging line(9), thereby preventing air from being trapped. Material continuously introduced through a material input port(20) is filled in an upper portion of the center insertion member(11) without trapping air. In addition, material filled in the upper portion of the center insertion member(11) generates an air trap due to an upper insertion member(12). At this time, air is discharged to the exterior through the upper air discharging scratch(2), air discharging jaw(10), and an upper air discharging port(1).
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