Demolding apparatus
OwnerRichard Hersbtinventor
Life of this patent
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Abstract
A gripper (2) for removing a molded workpiece (9) from the opened mold (1, 3) of a molding machine is coupled through a step-up drive transmission with the ejector (13, 15, 17) associated with the mold in such a manner that the ejector causes it to execute a movement away from the ejector in the same direction of motion as the ejector. The drive transmission can in particular have co-operating limit stops (45, 43) on the ejector and on the gripper, and one of these limit stops is mounted on a drive step-up lever (37). In another embodiment, the step-up drive transmission is designed as a hydraulic transmission.
Claims20
A demolding apparatus for removing a molding from a molding machine which is adjustable between a closed position and at least one open position, the demolding apparatus comprising a gripper for entering the molding machine when th molding machine is in an open position, including a gripping member, an ejector for ejecting the molding in a direction of ejection, an ejector drive acting on the ejector for carrying out an ejecting stroke, the ejecting stroke having at least an initial part and a fall part, and molding withdrawal means for moving at least one of the gripping member and the gripper together with the molding in a direction parallel to the direction of ejection for carrying out a moving away movement of the molding from the ejector, the molding withdrawal means including a drive transmission coupling the ejector drive, at least during the final part of the ejecting stroke, to one of the gripper and the gripping member, the drive transmission having a stepping-up ratio greater than 1 for enhancing the moving away movement of the molding from the ejector.
A apparatus for removing a molding from a molding machine which is adjustable between a closed position and at least one open position, comprising:
- a gripper for entering the molding machine when the molding machine is in an open position, the gripper including a gripping member for gripping the molding,
- ejector means for ejecting the molding in a first direction,
- ejector drive means for driving the ejector means in an ejecting stroke having an initial part and a final part, an
- molding withdrawal means for moving the gripper or gripping member together with the molding away from the ejector means in a direction parallel to the first direction, the molding withdrawal means including drive transmission means for coupling the ejector means to the gripper during at least the final part of the ejecting stroke, the drive transmission means having a stepping-up ratio greater than 1 for enhancing the movement of the molding away from the ejector.
Dependencies are inferred from the claim text.