Composite product coextrusion machine

The utility model provides a composite product coextrusion machine, which overcomes the defects of high equipment investment and more energy consumption of the prior art. The utility model has the essential technical scheme that the coextrusion machine is composed of screw rods, a feed barrel, a transfer case, an electric motor, a machine frame, etc., wherein the two screw rods are arranged in the feed barrel, are sheathed in each other or are assembled parallelly and the two screw rods are connected with two output shafts of the same transfer case and is driven by the same electric motor. The coextrusion machine adopting the structure has the advantages of reducing the quantity and the investment of facilities and reducing energy consumption and production cost. The utility model can be widely used for manufacturing composite products of tubular materials, section materials, plate materials, etc. with plastics, rubbers, etc.