Packaging device leak detection disc

The utility model provides a leak detection disc for a packaging device, which belongs to the technical field of electronic packaging and comprises a rectangular frame and a carrier plate, a front baffle plate of the rectangular frame is provided with a sliding hole, and side baffle plates on two opposite sides of the rectangular frame are respectively provided with a sliding chute; the carrier plate penetrates through the sliding hole and is in sliding fit with the sliding groove. When the carrying plate is in a closed state, the rear end of the carrying plate abuts against the rear baffle of the rectangular frame, the two side edges of the carrying plate are in sliding fit with the sliding grooves, and the front end of the carrying plate is provided with a push-pull part exposed out of the front baffle of the rectangular frame. According to the packaging device leak detection disc provided by the utility model, after the detection is finished, the carrier plate is pulled outwards, a gap is gradually formed