ES169461U - Electromechanical device for automatic wire cutting. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Electromechanical drive device for automatic wire cutting, characterized in that, connected to the general electrical circuit of the machine automation, there is attached to the housing a displaceable core electromagnet whose end rods are joined one with an internal set of braces and levers, articulated to each other and to two axes fixed to the housing, which actuate the mobile cutting blade and the other rod pulls in its linear movement to a solid arm whose end causes the tilting of a forked extractor rod at its free end, making also pivoting said stem to a wedge that separates the discs from the tensioner allowing the automatic cutting of threads, in accordance with the previous claim, characterized in that in the cutting operation, the needle and the thread take-up are automatically placed in their position elevated at the same time that the electromagnet acts simultaneously moving on the one hand, to the mobile blade that in its advance is introduced in the lower loop of the thread of the reel and on the other, opening the tensahilos and tilting to the extractor rod that surrounds the loop of thread on the, head of the blade mobile; all this so that in the immediate automatic retraction, the movable knife divides the threads, the loop and the bobbin, against the fixed knife and the extractor rod pulls and extracts the cut end of the loop that will continue threading in the needle, also producing the automatic lifting of the presser foot to remove the fabrics thereby the free passage of the spool thread. (Machine-translation by Google Translate, not legally binding)