HEATING MEDIUM SUPPLY METHOD AT TIME OF SECONDARY MOLDING OF RESIN MOLDED PRODUCT AND DEVICE

摘要

PROBLEM TO BE SOLVED: To prevent hot air not reaching a predetermined temperature from being introduced into a main passage at the time of the start of a hot air generator. SOLUTION: The heating medium supply device 1 is equipped with a hot air generator 20 and a housing part 15 formed in the vicinity of a hot air inflow port 81 of a molded product M in a mold 10. A nozzle 21 is formed to the leading end of the hot air generator 20 to form a jet orifice 211b to the side wall of a leading end needle 211 of the nozzle 21. A support hole 151 in which the nozzle 21 is fitted, an escape hole 152, a flow channel communication passage 153 and a bypass passage 154 are formed to the housing part 15. The jet orifice 211b is arranged so as to be movable between a first position where cold air or hot air is discharged to the air from the escape hole 152 through the bypass passage 154 and a second position where hot air is introduced into a flow channel 8 of the molded product M through the hot air inflow port 81 and the flow channel communication passage 153. COPYRIGHT: (C)2006,JPO&NCIPI