| 摘要 |
A molding apparatus which is contracted in order to form the groove inside the injection-molded article is provided to reduce the manufacturing cost of the mold by replacing the mold in order to variously change the inner shape of product. A molding apparatus which is contracted in order to form the groove inside the injection-molded article comprises the main core(10) which having the rail section(12) formed in the one side of body(11), and rail formed in the right and left of upper and lower part and rail section of the body(11R,12R); the first up and down movement core(20) of the pair it has the arc protrudent part(21) for the extrudate inside molding on the upper side; the second up and down movement core(40) of the pair it has the arc protrudent part(41) for the extrudate inside molding on the other side; and the stopper(50) having the holder(51) protruded to the fixed width in upper and lower part.
|
