The invention relates to a thread adjusting device (1) for a container treatment machine. The thread adjusting device (1) has at least one rotational body (2) which can be rotated about an axis of rotation (R) and at least one translational body (3) which can be moved translationally relative to the rotational body (2) by rotation of the rotational body (2), the rotational body ( 2) and the translation body (3) are positively and effectively connected to one another via at least one threaded connection (10). For this purpose, the rotating body (2) has a thread (4) with thread flanks (7) and the translation body (3) has a corresponding mating thread (5) with mating thread flanks (8) and the thread flanks (7) and mating thread flanks (8) comprise a respective flank surface (7.1, 8.1). For the hygienic cleaning of the threaded connection (10) by means of a cleaning fluid, at least one of the flank surfaces (7.1, 8.1) has structure-forming means (11) at least in sections, such that in a contact area of the thread (4) and mating thread (5) even in the state of the Overlapping of the thread (4) with the corresponding mating thread (5) at least in sections between the flank surfaces (7.1, 8.1) of the engaging thread flanks (7) and mating thread flanks (8) at least one receiving and guide space (9) for the cleaning fluid is formed . Furthermore, a fluid line (12) is provided such that a fluid connection is established between the at least one receiving and guiding space (9) and the fluid line (12) in at least one rotational position of the rotating body (2).
展开▼
