Title: Package seal checker
Application Number: 200610163685 Application Date: 2006.11.30
Publication Number: 1975360 Publication Date: 2007.06.06
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G01M3/26;B65B57/00
Applicant(s) Name: Ishida Seisakusho Address:
Inventor(s) Name: Yokota Yuji;Iwasa Seisaku
Attorney & Agent: wenda peng
Abstract:
    A seal checker (1) capable of reliaialy detecting a faulty seal at a vertical seal portion of a packaging bag or a portion thereof covered by the vertical seal portion is provided. A lower transfer conveyor (12) conveys a packaging bag such that a vertical seal portion thereof moves along the conveyance direction. The upper (12) and lower (11) transfer conveyors sandwich and press the packaging bag therebetween. A servo motor detects the distance between the transfer conveyors (11,12) when the packaging bag is pressed thereby. A control unit determines the seal properties of the packaging bag based on the distance detected by the servo motor. A gap is provided on a conveyance surface of one of the transfer conveyors to which the vertical seal portion faces, which extends in the conveyance direction and prevents the vertical seal portion from being pressed.
Time: 5