Molded glass body manufacturing method, and molded glass body manufacturing device

• Main Authors: ISHIMINE TAKESHI, YAMAZAKI KIYOKANE, WADA YASUMASA, FUJIMOTO TADAYUKI, ASAI HIDEKUNI
• Format: Patent
• Language: English
• Published: 07.10.2015
• Subjects: CHEMISTRY; GLASS; MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES; METALLURGY; MINERAL OR SLAG WOOL

In order to suppress the occurrence of defective shapes (astigmatisms) resulting from temperature distribution nonuniformity in the glass material and the mold unit occurring during press processing, this molded glass body manufacturing device (1) is provided with a rotation mechanism (14) which is provided in each processing chamber other than a press chamber (26) and which rotates the mold unit (8) non-continuously, and a control unit (15) which controls the stop angle position of the rotation mechanism (14) and the stopping time in the stop angle position, and, in a gradual cooling step and/or heating step, the mold unit (8) is rotated non-continuously by the rotation mechanism (14) and the control unit (15) controls the rotation mechanism (14); such that the stopping time during which the mold unit is stopped at a relative angular position different from the initial relative angular position, which is the angular position relative to the conveyance path directly after the mold unit (8) has been brought into each processing chamber, is longer than the stopping time during which the mold unit is stopped at said initial relative angle position.