B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 65/06 (2006.01) B23K 20/12 (2006.01) B65B 13/32 (2006.01)
Patent
CA 2342836
Disclosed is a method for connecting at least two thermoplastic elements. The elements are pressed together and welded elements whereby at least two welds are produced. This method may be used for friction welding of two overlapping sections of a thermoplastic strip. Also disclosed is a system for wrapping the strip around a package. The strip is passed around the package to form a loop whereby the sections are arranged at each end of the loop. The strip is tightened and secured by at least one clamping plate of the system. The strip is pressed against an abutment plate of the system pressing the overlapping sections together by a vibrating plate of the system. The overlapping sections are pressed against the abutment plate by the vibrating plate welding the overlapping sections by the vibrating plate whereby at least two welds are produced one behind each other in longitudinal direction of the strip and separated from one another by an unwelded area of the strip. A device welds at least two thermoplastic elements by a vibrating plate whereby at least two welds are produced one behind each other in longitudinal direction of one of the elements and separated from one another by an unwelded area of the element.
Borden Ladner Gervais Llp
Maschinenfabrik Gerd Mosca Ag
Maschinenfabrik Gerd Mosca Gmbh
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