Packaging machine for chromium-free and formaldehyde-free modified automobile seat cushion leather

The packaging machine comprises a machine body, a conveyor and a supporting plate, the supporting plate is fixed to the position, close to the right side, of the top of the machine body, first telescopic driving pieces are fixed to the two sides of the supporting plate, the output ends of the first telescopic driving pieces are connected with a push plate, and a limiting rod is fixed to the outer portion of the push plate; the limiting rod penetrates through the supporting plate and extends out, a second telescopic driving piece is fixed to the top of the supporting plate, the output end of the second telescopic driving piece is connected with a pressing plate, and a downward pressing roller is arranged at the bottom of the pressing plate through a support. The first telescopic driving piece is started, the first telescopic driving piece enables the push plate to move, the push plate can move plates on the two sides of a carton towards the inner side, then the second telescopic driving piece is started to ena