一种滑块顶杆先复位抽芯机构

The First Return Core-Pulling Mechanism of the Slide and Ejector Pin

介绍了一种滑块顶杆先复位机构抽芯的结构,具体地指一种汽车前雾灯后壳(内壁花纹壁通孔)的滑块顶杆先复位机构抽芯的结构。通过模具合模时滑块镶针比滑块晚复位,开模时滑块镶针先于滑块离开塑件,从而实现塑件自动侧边抽芯而不撞伤型腔镶件的功能。既保证了合模时滑块不会被型腔镶件撞伤,又保证了开模时塑件不会粘在滑块上,易脱模。该结构适用于塑件外观要求较高、尺寸要求较严、大批量生产的场合。

Introduces a slide ejector pin first return mechanism specifically refers to a slide ejector pin first return mechanism front fog light and rear shell of a car （the inner wall pattern wall core-pulling structure, which core-pulling structure for the through-holes）. The slide late reset slide pin than mold, when open mold slide needle prior to slide out of the product, to achieve automatic side core-pulling and not hit the mold insert function. It not only guarantees sliding block can not be cracked up by mold kernel insert when mold assembly, but also ensures product will not glued to sliding block when mold sinking. It is applicable to occasions where requires a higher standard on the appearance of the product,a more stringent size,and mass production.