This machine can be used to mount and mold the cover of hardcover, file and album. The cover can be delivered to the binding device with the conveyer belt, and its two sides can be folded and clung to the gray paperboard by the binding device, and the air can be extruded out by the press wheel and roller, hence the cover will be even, glazed and good-looking. Its size can be adjusted as you wish with the handwheel. Simple and easy to operate, equipped with single side binding machine, the whole production plan can be completed.