초록 ▼

The invention relates to a method and an apparatus for the processing of a material web to convert the same to individual packing containers filled with contents. Flexible packing containers for milk or other beverages are manufactured from tubular material which is filled with contents, formed and

The invention relates to a method and an apparatus for the processing of a material web to convert the same to individual packing containers filled with contents. Flexible packing containers for milk or other beverages are manufactured from tubular material which is filled with contents, formed and divided to packing containers with the help of alternately working forming and sealing jaws which are given a reciprocating movement in the longitudinal direction of the tube and in the transverse direction of the tube. In accordance with the invention the jaws are guided and driven by guiding and driving rods which run parallel with the material tube and to which different reciprocating movements are imparted.

대표청구항 ▼

A method for the processing of a continuous material web as the web is fed through a packing machine, comprising the steps of: advancing said web continuously while forming said web into a tube; advancing said tube between opposed sealing jaws, said sealing jaws cooperating in pairs and being moved

A method for the processing of a continuous material web as the web is fed through a packing machine, comprising the steps of: advancing said web continuously while forming said web into a tube; advancing said tube between opposed sealing jaws, said sealing jaws cooperating in pairs and being moved by first and second driving rods located parallel to the web; providing a pair of forming units including said sealing jaws, a yoke member and forming flaps; connecting each pair of said forming unit to said yoke member and rigidly connecting said yoke member with said first driving rod; imparting a reciprocal movement to said yoke member by the first driving rod; imparting a similar reciprocal movement to the second driving rod, the movement of said first and second driving rods imparting a reciprocal movement to the sealing jaws in a longitudinal direction and in a transverse direction of the material web; regulating the transverse movement of the sealing jaws so as to determine an inactive position and an active position of the sealing jaws; providing a pair of hook members for pressing the sealing jaws against the tube in the active position of the jaws; swiveling the sealing jaws from the active position to the inactive position by a cooperating cam interconnected with one of said pair of hook members and the second driving rod; and pressing the sealing jaws against the tubular web and sealing the tubular web during a predetermined part of the transverse reciprocal movement. A packing machine processing a tubular material web, comprising: a machine frame; a plurality of guide means forming said tubular material web; a drive mechanism provided so as to advance said web and seal a portion thereof, said mechanism including a yoke device connected to said sealing jaws, two parallel driving rods and sealing jaws actuated by said yoke device and the driving rods; said sealing jaws arranged on both sides of the web and cooperating in pairs, said drive mechanism imparting a reciprocating movement to said yoke device by reciprocating one of the driving rods, said drive mechanism also imparting a swivel movement to said sealing jaws by movement of the other of the driving rods; said two parallel driving rods connected to said drive mechanism so as to be provided with movement in a direction longitudinal to the direction of advancement of the material web, a first driving rod of the two parallel rods connected to the yoke so as to impart said reciprocating movement, a second driving rod of the two parallel rods connected to the sealing jaws so as to impart said swivel movement; two hook-shaped members connected to said jaws, one of said hook-shaped members swivelled between an active position and an inactive position by a cam element fixed to the second driving rod; and said drive mechanism driving the driving rods to impart two directions of movement to the sealing jaws, a first direction of movement being a reciprocal movement in said longitudinal direction of the web and a second direction of movement being in a transverse direction of the web, said sealing jaws contacting the tubular web during a portion of said transverse reciprocal movement to provide a seal in the web.