| 摘要 |
The invention relates to an injection-molding device for producing at least one tube head having a tube shoulder and a neck formed thereon having a press-out opening comprising a mold that defines a mold cavity (37) and a nozzle (15) that interacts with the mold. The nozzle (15) has a nozzle body (49) and a valve needle (51) that can be moved in the nozzle body (49) in the direction of the longitudinal tube axis. The valve needle comprises a valve needle shaft (53) and a terminal valve needle head (55). The valve needle (51) is surrounded by a first flow channel (63), through which a first material component (64) can be pressed out. The opening (72) of the nozzle (15) is closed by the valve needle head (55) in a retracted position of the valve needle (51) and released by the valve needle head (55) in an advanced position of the valve needle (51), wherein in the advanced position of the valve needle (51), an annular outlet opening (72) is formed, which establishes a fluid connection into the mold cavity (37) together with an annular gap (83) of the mold serving as a gate. |
