Patent ID: 8002535
Filing Date: 2011-08-23
Classification: B29C,B29K,B29L

Abstract:
1. An assembly for extruding a rubber compound, the assembly comprising: a die, the die comprising a die opening with a cross-section comprising a first area with a dimension which is larger than in a remaining area of the cross-section; the die, further comprising a flow channel, wherein the flow channel is configured for being connected to an extruder; and a deflector shaped as a positive obstacle and positioned in the flow channel upstream of the die opening and in front of the first area of the cross-section of the die opening, the dimension of the deflector along its cross-section being smaller than the corresponding dimension of the first area of the cross-section of the die opening such that a flow of rubber compound is slowed down in front of the first area of the cross-section of the die opening and wherein the cross-sectional shape of the deflector is similar at a reduced size to the shape of the first area of the die opening or mimics at a reduced size the shape of the first area of the die opening and wherein the deflector is positioned by at least one or more connectors for attaching the deflector to the walls upstream and in the center of the first area of the die opening such that the distance of an upper surface and a lower surface of the deflector are the same relative to inner surfaces of the first area of the die opening and wherein the at least one or more connectors are spaced away from the die opening to allow the rubber compound on each side of the connectors to unite before entering the die opening.