Preparation method of shuttle spokes

Abstract

A preparation method of shuttle spokes that includes these steps: providing a forging die comprising of an upper die and a lower die with the upper die and lower die having a joint angle of the shuttle spoke structure and an arch radius as well as a gap between the upper die and the lower die; inserting the blank of a round spoke into the gap between the upper die and lower die for stamping; using a plurality of nip molding rollers to eliminate the burr at both ends of the shuttle spoke structure; and applying a plurality of straightening rollers to straightness adjustment of the curved spoke body so that when the wheel parts are rolling, less air vortex can minimize air resistance.

1 . (canceled) 
     
     
         2 . (canceled) 
     
     
         3 . (canceled) 
     
     
         4 . (canceled) 
     
     
         5 . (canceled) 
     
     
         6 . (canceled) 
     
     
         7 . (canceled) 
     
     
         8 . Preparation method of a shuttle shape spoke includes the following steps:
 providing a forging die comprising of an upper die and a lower die having an arch center and meet at a parting gap that passes through center of a forging material for forming a shuttle shape structure;
 inserting a blank of a round spoke into the arch center between the upper die and lower die and stamping the blank spoke into a curved shuttle shape spoke structure; 
 removing the curved shuttle shape spoke structure from the forging die and using a plurality of nip molding rollers to eliminate the burr on both sides of the curved shuttle shape spoke structure and to shape the both sides into a cone angle; and 
 inserting the curved shuttle shape spoke structure into a plurality of angled straightening rollers to adjust the straightness of the curved shuttle shape spoke structure. 
   
     
     
         9 . The preparation method of a shuttle shape spoke as claimed in  claim 8 , wherein the shuttle shape spoke structure comprises of a spoke body and a head end and a screw thread disposed respectively at front and back end of the shuttle shape spoke structure; the head end having a neck and a flat part expanding from the neck; said flat part having a cross-section comprising a corresponding upper and a lower arch surface; two ends of the flat part comprising a plurality of tangent lines having the same cross point to form a joint angle and jointly forms the shuttle shape spoke structure. 
     
     
         10 . The preparation method of a shuttle shape spoke as claimed in  claim 8 , wherein, the cone angle is equal to or less than 90 degree. 
     
     
         11 . The preparation method of a shuttle shape spoke as claimed in  claim 8 , wherein, the plurality of straightening rollers are angled at equal to or less than 90 degree for allowing the curved shuttle shape spoke structure to pass through. 
     
     
         12 . The preparation method of a shuttle shape spoke as claimed in  claim 8 , wherein the straightening rollers are angled at equal to or less than 90 degree.