Procedure and device for the continuous manufacture of rows of helicople links of plastic for closures of zipper. (Machine-translation by Google Translate, not legally binding)

摘要

Process for the continuous production of rows of helical plastic links for slide fasteners, characterized by meeting the following characteristics: a) Two plastic threads are wound from storage coils and rotated in the same or opposite direction guided eccentrically, from where they are wound around a stationary peg located in the center; b) or before the eccentric rotary movement or on the way from this movement to its winding the threads are subjected periodically to the compass of the rotation at a pressure for the formation of the hooking heads of the links of the slide fastener; c) then the wound yarns pass through a fixing zone; d) then each of the turns forming the closing links is compressed on one side or in the center; e) then the links of the two rows produced are joined and the latter are discharged together. (Machine-translation by Google Translate, not legally binding)