Plastic cushion featured by coexistence of pipe network and filaments, its production technology and rotary type molding handpiece

A plastic cushion featured by a coexistence of pipe networks and filaments provided by the invention comprises plastic filaments with a disordered arrangement and connections with each other, and a pipe network in the cushion. The production technology comprises the following steps that: raw materials are sent into an extruder to heat for plasticizing to form a melt; the melt is extruded from a rotary type molding handpiece, the plastic filaments extruded from a fixed mold discharging opening move downward to form disordered filaments through a shaping roller and form connections at the points of contact with each other; the plastic filaments extruded from the second grooves around a rotating mold arranged at the inner side of the fixed mold form a pipe network, and are provided with cavities inside the pipe network; the extruded formed plastic cushion with the pipe network in the center and filaments on the periphery is cooled for shaping; and the shaped plastic cushion is pulled out from a cooling device fo