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    • 1. 发明授权
    • Extrusion device in particular for plastic materials
    • 挤出装置,特别是塑料材料
    • US08840389B2
    • 2014-09-23
    • US13991102
    • 2010-12-13
    • Giorgio MacCagnan
    • Giorgio MacCagnan
    • B29C47/04B29C47/20B29C47/24B29C47/06B29C47/28B29C47/00B29C47/56
    • B29C47/062B29C47/0023B29C47/24B29C47/28B29C47/56B29C2947/92514B29C2947/9259B29C2947/92885B29C2947/92904
    • An extrusion device, in particular for plastic materials comprising: an extrusion head (2) having a nozzle (2a) for ejection of at least one plastic material (M1, M2); a first duct (5) formed in said head (2) for feeding a first plastic material (M1) to said ejection nozzle (2a); a second duct (β) formed in said head (2) for feeding a second plastic material (M2) to said ejection nozzle (2a); and a selection element (8), disposed in the vicinity of said ejection nozzle (2a) and able to be switched between a first operating condition at which it closes the second duct (6) to enable feeding of the first plastic material (M1) through the first duct (5), and a second operating condition at which it closes the first duct (5) to enable feeding of the second plastic material (M2) through the second duct (6).
    • 挤出装置,特别是用于塑料材料,包括:挤出头(2),其具有用于喷射至少一种塑料材料(M1,M2)的喷嘴(2a); 形成在所述头部(2)中的用于将第一塑料材料(M1)供给到所述喷嘴(2a)的第一管道(5) 形成在所述头部(2)中的用于将第二塑料材料(M2)馈送到所述喷嘴(2a)的第二管道(&bgr); 以及选择元件(8),其设置在所述喷嘴(2a)附近并且能够在关闭所述第二管道(6)的第一操作条件之间切换以使得能够馈送所述第一塑料材料(M1) 通过第一管道(5)和第二操作条件,在该第二操作条件下,第二管道(5)关闭第一管道(5),以使得能够通过第二管道(6)进给第二塑料材料(M2)。