DEVICE FOR PRELIMINARILY MACHINING OF PLASTIC BLANKS

摘要

FIELD: plastics. ^ SUBSTANCE: invention relates to machining of plastic blanks. Proposed device has housing installed on base and provided with mechanism to make riffles on blank surface with toothed rolls installed in housing diametrically opposite and square to axis of blank under machining. Housing of toothed roll bearings are connected with extension springs, and blank under machining is fixed in centering cones parallel to longitudinal axes of rolls. Cones are connected by tie-rods and hinge joints with screws and adjusting bushing, and tie-rods are interconnected by compression spring. ^ EFFECT: improved efficiency of process of machining, reduced labor input, provision of clean surface and accurate sizes. ^ 3 dwg