| 摘要 |
Tight seal system for the packaging of products comprising a transverse welding station (14) of packaging sheets comprising: a first pair of discs (100) connected centrally to a first axis (101); said first pair of discs (100) rotating about said first axis (101); at least one first bar (102, 103) is positioned peripherally between said first pair of discs (100); a first welding jaw (111) is associated with said at least one first bar (102, 103); said first bar (102, 103) rotating so that said first jaw (111 ) is always facing in the same direction; a second pair of discs (130) connected centrally to a second axis (131); said second pair of discs (130) rotating about said second axis (131); at least one second bar (132, 133) is positioned peripherally between said second pair of discs (130); a second welding jaw (136) is associated with said at least one second bar (132, 133); said second bar (132, 133) rotating so that said second jaw (136) is always facing in the same direction; said first jaw (111) and said second jaw (136) are facing each other so that, rotating said first pair of discs (100) and said second pair of discs (130), said first jaw (111) and said second jaw (136) come into contact with each other and can perform welding of said packaging sheets; said first welding jaw (111) is associated with said at least one first bar (102, 103) by means of a plurality of pins (112) passing through said first bar (102, 103); two pins (120) secured inferiorly to said first bar (102, 103) support a third bar (121) parallel to said first bar (102, 103); a plurality of springs (122) are placed between said plurality of pins (112) and the inner surface of said third bar (121). |
