发明名称 Ultrasonic welding device
摘要 An ultrasonic welding device for the transverse welding of a continuous chain of package blanks (12) movable in a longitudinal direction (A), the continuous chain of package blanks (12) including a continuous succession of products (14) spaced apart in a longitudinal direction (A) and wrapped in a tubular packaging film (16), the ultrasonic welding device (10) comprising: - a sonotrode unit (26) including a sonotrode hub (32) rotating about a first axis (B) transverse to said longitudinal direction (A) and at least one sonotrode (30) projecting radially from said sonotrode hub (32), and - an anvil unit (28) comprising an anvil hub (34) rotating about a second axis (D) parallel to said first axis (B) and at least one anvil (36) projecting radially from the anvil hub (34) and having at least one welding portion (38, 40) cooperating with said sonotrode (30) for transversely welding said continuous chain of package blanks (12) along welding lines (20, 22) spaced apart along said longitudinal direction (A), wherein said welding portion (38, 40) comprises at least one rib (46) having a welding surface (50) that extends along a helical path.
申请公布号 EP2781340(A1) 申请公布日期 2014.09.24
申请号 EP20140158116 申请日期 2014.03.06
申请人 CAVANNA S.P.A. 发明人 BROLLI, ELIO
分类号 B29C65/08;B29C65/74;B29C65/78;B65B7/02 主分类号 B29C65/08
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