| 摘要 |
<p>Device for packaging articles in film, comprising conveyors (3, 5) for moving the articles (1) along a route (2), feed devices (8, 9) for feeding two film webs (6, 7), a separating and welding device (15) for forming a separating weld across the route between successive articles, which separating and welding device comprises a welding and cutting unit (16) at one side and a counterpressure unit (4) at the opposite side of the route, and also drive means (17) for moving the welding and cutting unit along a closed path, the film webs for forming the separating weld being clamped over a part of this path between the welding and cutting unit and a contact face of the counterpressure unit, characterised in that the path followed by the welding and cutting unit is a smooth curve (A), along which the speed is continuous, save in a possible rest position.</p> |
