INJECTION MOLDED PART AND MOLDING DEVICE

The utility model provides a high-quality injection molding piece forming device capable of preventing weld lines from being generated. The injection-molded article is a molded article (lens) (2) molded into a shape that is long in at least one direction, in the lens (2), a plurality of gate marks (24) are present along the longitudinal direction thereof, and the cross-sectional area of a first gate mark (24 (G1)) present in the center of the injection-molded article in the longitudinal direction is larger than the cross-sectional area of second gate marks (24 (G2)) present on both sides thereof. Furthermore, a third gate mark (24 (G3)) may be present on each of the outer sides of the second gate mark (24 (G2)) in the longitudinal direction, and the cross-sectional area of the third gate mark (24 (G3)) is larger than the cross-sectional area of the second gate mark (24 (G2)). 本实用新型提供防止熔接线产生的高品质的注射成形件成形装置。该注射成形件是成形为至少在一个方向上较长的形状的成形件(透镜)(2)，在透镜(2)中，沿着其长度方向存在多个浇口痕(24)，存在于注射成形件的长度方向中央的第一浇口痕(24(G1))的截面积比存在于其两侧的第二浇