Extrusion die special for external water cutting, flock pasting and flanging

The utility model relates to a special extrusion die for external water cutting, flock sticking and flanging, which comprises a plurality of overlapped and communicated templates, a plastic-coated extrusion channel and a flocked belt preheating channel which are independent from each other are arranged in a combined finished product of the plurality of templates, a heat source is arranged at the plastic-coated extrusion channel, and the flocked belt preheating channel is communicated with the heat source. The temperature in the flocking belt preheating channel is lower than that in the plastic coating extrusion channel; the flocking belt preheating channel is a variable cross-section channel, and a mouth die insert used for pushing forming is arranged at the discharging end of the flocking belt preheating channel. The extrusion die provided by the utility model is provided with two channels which are respectively used for extruding the plastic part and preheating and softening the flocking belt, and the plast