EXTRUDER
    8.
    发明公开
    EXTRUDER 有权
    挤出机

    公开(公告)号:EP2454078A1

    公开(公告)日:2012-05-23

    申请号:EP09777225.5

    申请日:2009-07-16

    Inventor: Blach, Josef A.

    Abstract: The invention relates to an extruder comprising a housing having at least two axially parallel shafts that can be driven in the same direction, wherein the extruder is provided with at least double-threaded conveying elements (2, 11, 12, 21, 22, 31, 32, 41, 42, 43, 50, 51, 52, 53), which mesh with each other and which wipe each other off at an axial distance (Ax) with low backlash at the entire circumference, wherein there is a distance (a) between the comb (6, 6') of the at least one further thread and the inner wall (1) of the housing. Each conveying element (2, 11, 12, 21, 22, 31, 32, 41, 42, 43, 50, 51, 52, 53) has at least two angularly twisted conveying sections (3, 4; 11a to 11f, 12a to 12f; 21a to 21e, 22a to 22e; 31a to 31e, 32a to 32e; 41a to 41e; 50a to 50e; 51a to 51e; 52a to 52e; 53a to 53e), wherein each conveying section has an axial length (Ls) that corresponds at most to the outer diameter (Da) of the conveying element (2, 11, 12, 21, 22, 31, 32, 41, 42, 43, 50, 51, 52, 53).

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