Injection moulding machine for producing fibre-reinforced plastic mouldings

An injection molding machine (1) for producing fiber-reinforced plastic moldings, with a closing unit (2) and an injection unit (3), wherein the injection unit (3) has a cylinder (4) and a screw (5) that can rotate in the cylinder (4) and be displaced in the longitudinal direction of the cylinder (4), wherein a first opening (8) is provided in the cylinder (4) as a filling opening for feeding in a plastic material to be melted, wherein a second opening (9) is provided in the cylinder (4) downstream from the first opening (8) as a filling opening for feeding in a fiber material, and wherein the screw (5) has a backflow stop (11),

• wherein
• a mixing part (12) that is connected with the screw (5) in a rotationally fixed manner and co-rotates with the latter is provided downstream from the backflow stop (11) and/or upstream from the backflow stop (11), that the mixing part (12) has a cylindrical base body (13) whose outer diameter (DM) is smaller than the inner diameter (DZ) of the cylinder (4), wherein an annular gap (18) is formed between the base body (13) and inner cylinder wall (17), that several drops (14) as drop-shaped mixing elements (14) are distributed over the periphery of the base body (13), arranged on the surface of the base body (13) facing the inner cylinder wall (17), wherein a top view of a drop (14) reveals a longitudinal drop axis (LT), which runs from the pointed end (16) of the drop (14) to the essentially opposing, rounded end (15) of the drop (14), and that the selected height (H) of the drops (14) over the base body (13) is smaller than the width (B) of the annular gap (18) between the base body (13) and inner cylinder wall (17).