Cutting process and cutting mechanism capable of separating product from cutter

The invention provides a cutting process and a cutting mechanism capable of separating a product from a cutter, and belongs to the technical field of cutting machines. The pressing and cutting device comprises a pressing and cutting plate with a knife cutting die and a bottom plate used for placing a product to be cut. The pressing and cutting device comprises the following steps that firstly, a metal sheet is arranged on the bottom plate and fixed through an adhesive tape; and 2, packing paper is placed on the metal sheet, the pressing and cutting plate is driven to cut the packing paper, and then the height of the metal sheet is preliminarily adjusted according to the depth of the mark left by the knife cutting mold on the metal sheet. The sponge cushion covering the cutting die is arranged on the pressing and cutting plate, after products such as paper or silk are cut, the products can be ejected out through the elasticity of the sponge cushion, the products can be separated from the cutting die under the