Sliding core device

The invention provides a sliding core device. The slide core device (5) includes a core guide (7) and a force application mechanism (16). The core guide (7) guides the sliding core (6) in such a manner as to be movable between the forming position S2 and the retracted position S1. (16) is provided in the slide core (6), and the slide core (6) is biased from the molding position S2 to the retracted position S1.The force application mechanism(16) is provided in the sliding core (6), force is applied on the sliding core (6) by the force application mechanism (16) from the molding position S2 to the retracted position S1. 本发明提供种滑动型芯装置。滑动型芯装置(5)具备型芯导向部(7)和施力机构(16)。型芯导向部(7)以滑动型芯(6)能够在成型位置S2和退避位置S1之间移动自如的方式对其进行导向。施力机构(16)设置于滑动型芯(6)，从成型位置S2向退避位置S1对滑动型芯(6)施力。施力机构(16)通过下述方式实施施力：使突出部(18)从滑动型芯(6)的成型位置S2侧的端面(17)突出而推压到第分模(1)的抵压面(19)上。利用螺栓(32)将型芯导向部(7)固定于第分模(1)。螺栓(32)经由设置在型芯导向部的导向条槽部(14)的底面(15)上的沉孔而插入。该滑动型芯装置利用从滑动型芯侧插入的螺栓能够无障碍地固定型芯导向部。