Patent ID: 6517652
Filing Date: 2003-02-11
Classification: B29C,B29K,B29L,B65B

Abstract:
A method for friction welding of two overlapping sections of a thermoplastic strip with a system wrapping said thermoplastic strip around a package, comprising:passing said thermoplastic strip around said package to form a loop whereby said two overlapping sections are arranged at each end of said loop; tightening said thermoplastic strip; securing said thermoplastic strip by at least one combined clamping and vibrating plate of said system such that said thermoplastic strip is pressed against an abutment plate of said system; pressing said two overlapping sections together by said at least one combined clamping and vibrating plate; pressing said two overlapping sections against said abutment plate by said at least one combined clamping and vibrating plate; and welding said overlapping sections by vibrating said at least one combined clamping and vibrating plate.