Patent ID: 7220378
Filing Date: 2007-05-22
Classification: B29C,G01J

Abstract:
1. A system for providing the measurement and control of one or both of the inside and outside surface temperature of thermoplastic preforms during stretch blow molding operations of a stretch blow molding machine, the stretch blow molding machine having a thermal conditioning section, the system comprising: a conveyance means operative to transport a series of preforms through the thermal conditioning section of the stretch blow molding machine; at least one high-speed, snap-shot action thermal infrared temperature sensor deployed and positioned to acquire at least one of an outside surface temperature measurement of a preform and an inside surface temperature measurement of a preform; and, an infrared processing and control subsystem used to monitor temperature data supplied by the infrared temperature sensors and, in response, generate a control signal that is then sent to the thermal conditioning section.