Patent ID: 11958231
Assignee: NISSEI ASB MACHINE CO., LTD.
Field: Other special machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A resin container manufacturing apparatus configured to stretch a preform disposed in a stretch blow molding mold by a stretching rod and stretch the preform by introducing blow air into the preform so as to form a resin container, the resin container manufacturing apparatus comprising:
a detector configured to detect an actual position of the stretching rod inserted into the preform; and
a controller configured to:
control a supply state of the blow air based on a detection result of the detector,
control an introduction of blow air as primary air when the detector determines that the actual position of the stretching rod is at a first position, and
control an introduction of blow air as secondary air when the detector determines that the actual position of the stretching rod is at a second position,

wherein the primary air introduced starting at the first position by the control of the controller is continuously introduced while the stretching rod continuously moves until the detector determines that the actual position of the stretching rod is at the second position,
wherein, when the detector determines that the actual position of the stretching rod is at the second position, the secondary air introduced at the second position by the control of the controller is continuously introduced while the stretching rod continues to continuously move, and
wherein the blow air introduced into the preform is switched from the primary air at the start of introduction of the blow air to the secondary air having a higher pressure than the primary air based on the detected actual position of the stretching rod.