US 2009/0266148 A1Published application

Seal checker

AssigneeIshida Co., Ltd.

InventorsYuji Yokota, Seisaku Iwasa

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Abstract

A seal checker for conveying and pressing a packaging bag by upper and lower conveyance units is provided which is capable of saving space with a compact structure, and is also capable of improving maintainability and cleanability. A lower transfer conveyor is mounted on a main body frame, and an upper transfer conveyor is supported by an elevating mechanism mounted to the main body frame. The elevating mechanism includes first and second link members and a frame that connects upper end portions of the link members to each other. Lower portions of the first and second link members are connected to the main body frame. The frame is configured so as to move in parallel with the lower transfer conveyor.

Claims7

Dependent claims

A seal checker comprising:

a support frame;
an elevating mechanism mounted to the support frame;
a pair of upper and lower conveyance units disposed above the support frame configured to convey and press a packaging bag by sandwiching the packaging bag therebetween, the lower conveyance unit being mounted on the support frame and the upper conveyance unit being supported by the elevating mechanism;
a detection unit configured to detect at least one of a distance between the upper and lower conveyance units and a load applied to the packaging bag when the packaging bag is pressed by the upper and lower conveyance units;
and
a determination unit configured to determine seal properties of the packaging bag based on the at least one of the distance and the load detected by the detection unit.

3 more elements

Dependencies are inferred from the claim text.