| 摘要 |
The invention relates to a regulating and control device for a needle element (24) of a hot or cold channel (20) of a plastic shaping tool, whereby a rotation of a drive device is converted by means of a converting device (26) into an axial movement of the needle element (24). The aim of the invention is to obtain an optimal plastic production, i.e. to effect an optimal movement of the needle element (24) both during the no-load stroke as well as during the process control and during slowing down. To these ends, the converting device comprises at least one slide path (30) and a feeler element (50) which is guided in said slide path (30), whereby the at least one slide path (30) which is curved, i.e. which has differing path inclinations, is formed on a slide path surface that is concentric in relation to the center axis (42) of the needle element.
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