Actuation Of Ejector Plates By The Side Hook

In Fig. 6.50, the sub-parting line I is for takeing the residual material, and the main partir line II is for takeing workpiece. The side hook 2 can be lifted out with a control hook 4 fixed to the stationary clamping plate 9. The use of the control hook generally results in lifting the ejector plates along a longer path. The ejector plate 8 can be actuated with side hook 2 which anchors the cam I during the mold opening, the sub-parting line I opens. When the ejector plate(or nest plate)8 has been lifted to the required extent, the nose of the hook 2 is pushed out of the cam I by hooke plate 4, and so the motion of ejector plate 8 is stopped. Following the mold opening, the main parting line II opens. The workpiece is pushed out of the movable mold by ejector pins 15. Angle a of the side hook 2 is wider than angle a of the supporting insert(or cam)l, which facilitates removal of the side hook along the arc of turning. The ejection system goes back to its initiation position by returning pin 16 or spring