| 摘要 |
A thread supply device for a textile machine, in particular a knitting machine, having a thread drum upon which there is tangentially wound the thread issuing from a storage bobbin in order to form an intermediate thread supply and from which drum the thread may be unwound vertically over a withdrawal rim of the drum and through a central withdrawal eye. A movable thread control element is disposed adjacent the withdrawal path of the thread near the withdrawal rim, which element is not in contact with the unwinding thread in a first position and laterally engages the unwinding thread in a second position to prevent it from being laterally displaced relative to the direction of rotation of the thread drum such that the speed at which the thread is unwound is limited to the speed at which the thread is wound onto said drum when the thread guide element is in the second position. The thread control element is designed as a hook and in the case of a thread drum which is set in rotation, the mouth of the hook opens in the direction of rotation of the thread drum. The hook is mounted on a stationary support arm extending outside the thread drum from the axis thereof toward and beyond the withdrawal rim. |
