Patent ID: 6783351
Filing Date: 2004-08-31
Classification: B29C,B29D,Y10S,Y10T

Abstract:
An apparatus for continuously manufacturing a slide fastener spiral element row from a continuous monofilament, comprising:a forming screw assembly including a first and a second screws; a die assembly including a rectangular front die and a rectangular rear die; an abutment assembly including a rectangular front abutment plate and a rectangular rear abutment plate; and a rear forming assembly including of a hollow block member secured to the rear abutment plate, a shaft mechanism received in the block member, a rear cap secured to the block member, and a rear adjustment screw driven through the rear cap to engage with a rear end of the shaft mechanism; wherein in an axial adjustment of the shaft mechanism, a manipulation of the rear adjustment screw enables the shaft mechanism to either push forward as the main spring compressed or pull rearward as the main spring expanded, in response, a distance of the shaft mechanism into a zipper forming space defined by the abutment plates and the screws is made optimal.