Blow molding machine

Details Blow molding machine Blow molding machine

B - Operations, Transporting

29

C

18/522

B29C 49/78 (2006.01) B29C 49/04 (2006.01)

Patent

CA 1109215

BLOW MOLDING MACHINE ABSTRACT OF THE DISCLOSURE Means for controlling the action of a blow molding machine of the type having a continuously extruding parison. The control means includes a photocell signal circuit respons- ive to extrusion of each parison at normal speed to initiate the decompression of a product at the blow molding station and opening and transfer of the mold halves back to the parison station. Should material in the extruder become depleted, the slower parison extrusion time will be detected and initiate signals for an alarm and deactivation of the blow molding machine. Means are also provided for disenabling this alarm and deactivation system if it is desired to "dry cycle" the machine for test purposes without running the extruder.

314725

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