| 摘要 |
Device and method for inserting, sectioning and fixing wire-like metal elements (6) into plastic materials enclosed between twinned metal nettings, particularly for introducing, defining and welding crosspieces in automatic "sewing" machines for producing sandwich prefabricated panels made of metal grids and expanded plastic material. The welding operation takes place by at least one pair of electrodes (9, 10) wherein a cutting insert (15) is embedded in one electrode (9) such the said electrodes serve also for sectioning the metal wire (6)and welding its apex with the weft wire (16) in a single station for the advancement of the product. |
