| 摘要 |
PURPOSE:To obtain a molding consisting of alternatively linked different resins supplied from each extrusion molding machine by moving a switching part being slidably set between a head and a die to stop it at each stopping position and to thereby switch the state of junction between a resin path in the head and an extrusion path in the die. CONSTITUTION:When a switching part 30 is slid to the arrow A direction by actuating a cylinder 40a, switching paths 31, 32 coincide with resin paths 11, 12 and extrusion paths 21, 22 and a molten resin supplied from extrusion machines 2a, 2b is extruded from the paths 21, 22. Then, the part 30 is slid to the arrow B direction by actuating a cylinder 40b, and switching paths 33 and 34 coincide with the paths 11, 12 and 21, 22 respectively. Namely, the paths 11, 12 and 21, 22 are switched and a molten resin supplied from the machine main body 2a and another molten resin supplied from the machine main body 2b are guided to the path 22 through the path 33 and to the path 21 through the path 34 respectively. |
