Patent ID: 9744709
Date: 2017-08-29
CPC Classifications: B29C

Claim:
1. A variable extrusion die apparatus, comprising: a first die into which an extrusion material is injected; a second die coupled to the first die and having an extrusion nozzle which has a shape corresponding to a cross section of an extrusion product; a swivel core installed such that the swivel core is rotatable in the extrusion nozzle; and a control shaft connecting a core wheel, which is configured to rotate the swivel core, to the swivel core, the control shaft passing through the first die and extending toward the extrusion nozzle of the second die, wherein a cross section of the extrusion nozzle is varied by rotation of the swivel core, and wherein the core wheel has a plurality of spokes at an inner peripheral surface of the core wheel, and the control shaft has two opposing ends, one opposing end connected to the inner peripheral surface of the core wheel via the plurality of spokes, and the other opposing end connected to the swivel core.