| 摘要 |
PROBLEM TO BE SOLVED: To provide an extruder comprising a barrel easily changeable to a barrel structure corresponding to the alignment of a screw element when the screw element for kneading a raw material is aligned regularly along a screw axial direction, and to provide a kneading device comprising the extruder.SOLUTION: An extruder comprises a screw 21 for extruder in which the screw elements for kneading a raw material are provided, and a barrel 20 having a cylinder part 33 in which the screw is rotatably inserted. Plural screw elements are provided with certain regularity along the longitudinal direction of the screw. The barrel is integrated by combining plural blocked barrel blocks 31a, 31b, 31c with each other. Plural barrel blocks are configured respectively by homologizing to the length of the screw element along the longitudinal direction of the screw. The screw element includes to the raw material, a portion imparting a shearing action and a portion imparting an extension action.SELECTED DRAWING: Figure 5 |
