METHOD AND APPARATUS FOR SHAPING THE ENDS OF GLASS TUBE

摘要

Glass tubes are transferred while being rotated by means of roller groups arranged in a plurality of rows. Intermediate between the ends of the transfer path, on both sides of the roller groups and in intermediate positions corresponding to the portions to be treated of the glass tube close to both ends thereof, there are correspondingly provided burners, a shaping rail for squeeze shaping the tube cooling pipes, a cutter burner and thin circular cutting plate for cutting the tube at the middle of the shaped portion and burners for smoothing the cut surfaces and for successively cooling those surfaces with gentle flames.