Pin hole inspection apparatus and method

A pin hole inspection apparatus for determining whether or not a vacuum-packed state of a Front Opening Shipping Box (FOSB) vacuum-packed with film paper is defective, the pin hole inspection apparatus comprising:

• a transfer unit configured to transfer the FOSB;
• ports installed in a progress direction of the transfer unit;
• adsorption units installed in the ports and vacuum-adsorbed onto a target part of the film paper, configured to surround the FOSB located in the ports, so as to pull the film paper;
• displacement measurement units installed in the ports and configured to measure degrees of swelling of the film paper pulled through the adsorption units;
• and
• a processing unit configured to determine whether or not a pin hole is generated by comparing a measurement displacement value acquired through the displacement measurement units with a pre-stored reference displacement value.

A pin hole inspection method for determining whether or not a vacuum-packed state of a Front Opening Shipping Box (FOSB) vacuum-packed with film paper is defective, the pin hole inspection method comprising:

• aligning the FOSB vacuum-packed with the film paper through alignment means;
• swelling the film paper by pulling the film paper through an adsorption unit vacuum-adsorbed onto a target part of the film paper configured to surround the FOSB;
• measuring displacements by measuring degrees of swelling of the pulled film paper through a displacement measurement unit;
• and
• performing pin hole inspection by determining whether or not a pin hole is generated by comparing a measurement displacement value, acquired in the measuring the displacements, with a pre-stored reference displacement value.