DEVICE FOR PRODUCTION OF AN EXTRUDED SHAPED PROFILE Russian patent published in 2005 - IPC

FIELD: production of extruded shaped profiles by coextrusion of different materials.

SUBSTANCE: the invention is pertaining to the device for production of extruded shaped profiles by coextrusion of different materials, in particular, to production of the shaped profile at least with three passing in parallel and spaced from each other partitions. The device contains at least two extruders giving out various materials. The extruders are coupled accordingly through the first and the second units with several through channels feeding the various materials. The device has three longitudinal outlet slots: two external primary outlet slots and one middle secondary outlet slot. Each external primary outlet slot is coupled to one of the first through channels going out from the first unit. The middle secondary outlet slot is coupled to two secondary through channels going out from the second unit. Between two second channels there is one primary channel. Additionally through channels are going out from the first unit. The channels are passing to the additional outlet slots passing in the transversal edge field at least of one of the primary external outlet slots. The invention ensures feeding of the extruded material in the required amount through the rather wide slots passing in parallel to each other.

EFFECT: the invention ensures feeding of the extruded material in the required amount through the rather wide slots passing in parallel to each other.

5 cl, 1 dwg