Apparatus and system for inspecting wall thickness of synthetic resin containers

A system for inspecting a container made of synthetic resin comprising:

• a first container conveying station provided with a plurality of container holders arranged around the circumference of a rotary disc with predetermined spaces, each container holder having a driving roller and a pair of rotation rollers which nip a flanged portion of the container,
• a container feeding station for feeding the containers to a container conveying passage of the first container conveying station at an interval equal to that between the adjacent holders,
• a first inspecting station disposed downstream of said first container conveying station for inspecting the existence off a heat resistance resin in the container,
• a second inspecting station disposed downstream of said first inspecting station for inspecting the wall thickness of the container,
• a second container conveying station disposed downstream of said second container inspection station provided with a container receiving end portion for receiving the container judged to be a good product by the inspections of the first and second inspecting stations and conveying the container external to the first container conveying station, and
• a first container discharging station disposed downstream of said second container conveying station for discharging a container judged to be a faulty product by the inspection of at least one of the first and second inspecting stations external to the first container conveying station.