摘要 |
Provided is a container wall thickness inspection device 1 for inspection of a container 10A in which areas of relatively greater wall thickness (flat portions Rf) and areas of lesser wall thickness (corner portions Rc) are distributed in the circumferential direction, the device comprising: a wall thickness measurement device (electrostatic capacity detector 4) having a sensor part 5, and measuring the wall thickness of the container 10A in regions of the outside peripheral surface of the container 10A while the regions are faced by the sensor part 5; a rotation drive mechanism for driving axial rotation of the container 10A about the center axis of the container in order to measure the wall thickness of the container 10A about the entire circumference by the thickness measurement device; an area detection device (photoelectric sensor 8) for detecting which area of the container 10A a region being measured for wall thickness by the wall thickness measurement device is; and a determination device for making a pass/fail determination as to wall thickness of the container 10A, from measured values of wall thickness about the entire circumference of the container 10A, obtained from the output of the wall thickness measurement device. The determination device is provided with a storage unit for storing pass/fail criterion values for wall thickness in each of the areas, and a comparison unit for comparing measured values of wall thickness obtained from the output of the wall thickness measurement device, to pass/fail criterion values stored in the storage unit, for areas detected by the area detection device. |