22-06-2017 дата публикации
Номер: US20170174377A1
Принадлежит:
KHS USA, INC.
A sealing bar assembly for a packaging machine includes a mounting frame, first and second sealing bar carriages carried by the mounting frame, at least one of the first and second sealing bars being movable with respect to the mounting frame, first and second sealing bars mounted, respectively, to the first and second sealing bar carriages and movable therewith, the first and second bars including, respectively, first and second opposed sealing surfaces, at least a first electromagnet assembly arranged adjacent to the first sealing bar, and a controller configured to selectively energize the first electromagnet assembly to move the first and second opposed sealing surfaces into and out of engagement across a web of packaging material passing therebetween. 1. A sealing bar assembly for a packaging machine comprising:a mounting frame;first and second sealing bar carriages carried by the mounting frame, at least one of the first and second sealing bars being movable with respect to the mounting frame;first and second sealing bars mounted, respectively, to the first and second sealing bar carriages and movable therewith, the first and second bars including, respectively, first and second opposed sealing surfaces;at least a first electromagnet assembly arranged adjacent to the first sealing bar; anda controller configured to selectively energize the first electromagnet assembly to move the first and second opposed sealing surfaces into and out of engagement across a web of packaging material passing therebetween.2. The sealing bar assembly of claim 1 , wherein both the first and second sealing bars are movable with respect to the mounting frame.3. The sealing bar assembly of claim 2 , wherein the first and second sealing bars are slidably carried by the mounting frame.4. The sealing bar assembly of claim 3 , further comprising a linear bearing assembly slidably connecting the first and second sealing bar carriages to the mounting frame.5. The sealing bar assembly of ...
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