Transfer device for applying labels to blow molds
AssigneeThe Continental Group, Inc.
InventorErnest W. Hellmer
Life of this patent
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Abstract
This relates to a transfer apparatus for transferring labels from a label stack into the cavity of a moving mold half. The transfer device includes a pivotally mounted arm which has mounted on its free end a transfer head which swings about the arm so that for a limited movement of the arm there can be a much greater movement of the transfer head. Thus, the transfer head may rapidly enter and rapidly depart from a mold cavity so that a label may be seated in the mold cavity very quickly without requiring any slowdown of the movement of the mold half. The transfer head is provided with vacuum heads which operate to effect a peeling of a label from its associated stack beginning along one edge portion of the label so as to assure that only a single label is picked up from the stack.
Claims11
A transfer device for transferring a label or like sheet from a stack to a moving member, said transfer device comprising a pivotally mounted arm, a transfer head pivotally mounted on said arm remote from its pivot and for pivoting with said arm and relative to said arm, said transfer head having transfer means for picking up and discharging labels and like sheets, return means coupled to said arm for positioning said arm and said transfer head with said transfer head being disposed adjacent said stack of sheets, drive means coupled to said arm for overcoming said return means and pivoting said arm and said return means in a selected direction to a position to deposit a transferred sheet on said moving member in response to movement of said moving member relative to said transfer device, and actuator means for pivoting said transfer head relative to said arm in said selected direction in response to pivoting of said arm whereby the total pivoting of said transfer head is greatly in excess of the pivoting of said arm.
Dependencies are inferred from the claim text.