| 摘要 |
<p>The invention relates to a thread guide (FAD) for a spool unit (SEI) for winding product to be wound (GUT) onto a spool (SPU) of the spool unit (SEI), wherein the thread guide (FAD) carries out a back and forth movement during winding, and wherein the thread guide (FAD) is configured as a rotor (LAU) of an electric linear motor (LIN), and wherein the rotor (LAU) is supported on at least one wheel (R1", R2") and disposed opposite a stator (STA), the stator (STA) being provided for generating a magnetic travelling field, and wherein the rotor (LAU) comprises at least one permanent magnet (PE1", PE2") such that the rotor (LAU) moves in the travelling field along the stator (STA), wherein according to the invention above the stator (STA) exactly one rail (SC") is disposed, on which the rotor (LAU) is supported by means of at least one wheel (R1", R2"). Advantageously, the rotor (LAU) also comprises at least one back iron (REU"), which follows a movement of the rotor (LAU), for forming a magnetic return path.</p> |
