Patent ID: 8938868
Filing Date: 2015-01-27
Classification: B21C,B29C,B65H,Y10T

Abstract:
1. A spring tube winding machine comprising: a winding roller formed in a cylindrical shape having an uneven surface on the outer circumferential surface thereof, so that the winding roller is configured to wind spring tube materials, which include a first rubber sheet, a first cord topping sheet, a second cord topping sheet and a second rubber sheet, in order, the winding roller including a plurality of discharge holes for ejecting compressed air injected through a nozzle, which is disposed at an end of the winding roller, in an outward direction from an inside; wherein the first cord topping sheet comprises a first plurality of cords, and the second cord topping sheet comprises a second plurality of cords; and a table having a plurality of pairs of reference lines with different angles on a surface of the table, each pair of reference lines comprising a first reference line and a second reference line intersecting each other at a point and symmetric with each other with respect to a line including the point and perpendicular to the longitudinal axis of the winding roller for setting a seating angle in such a fashion that the spring tube materials wound on the winding roller are seated in an unfolded state and the first plurality of cords and the second plurality of cords are intersected with each other.