Apparatus and method for manufacturing tear-off lids
AssigneeSoudronic AG
InventorsAndreas Lanz, Oliver Schulthess, Peter Taina
Life of this patent
Estimating the term…
Abstract
In case of manufacturing tear-off lids (28) out of lid rings (20′) with a tear-off foil (25) sealed on them and with a tear-off tab (29) the tear-off tab is fixed in a folded back position onto the tear-off foil of the lid by an adhesive patch (30). For this, the adhesive patch is applied onto the foil section in such a way that individual adhesive patches are separated out of an adhesive tape with a carrier tape and an adhesive material arranged thereon by a separating means. Such an adhesive patch is arranged on the foil section of each lid in a position where the folded back tear-off tab comes to lie. By this, a fixing of the tear-off tab can be reached in an economical and secure manner.
Claims11
Apparatus for the manufacturing of tear-off lids (28), comprising a transport device for lid parts and lids (20, 20′, 28) and processing stations for the lid parts and lids arranged along the transport device, including a sealing station (5, 6) adapted to seal a foil section (25) provided with a tear-off tab (29) onto a lid part shaped as lid ring (20′), as well as including a folding station (7) wherein the tear-off tab (29) is folded towards the top side of the foil section, characterized in that a station for adhesive bonding (40) is provided between the sealing station and the folding station, including an application device (41) by means of which an adhesive tape (48) is transported and an adhesive patch (30) is removed from a carrier tape (58) of said adhesive tape without cutting said carrier tape, and is applied in the station for adhesive bonding onto the top side (26) of the foil section previously sealed onto the lid ring in the sealing station, in a position where the tear-off tab will become to lie in the folding station.
Apparatus for the manufacturing of tear-off lids (28), comprising a transport device for lid parts and lids (20, 20′, 28) and processing stations for the lid parts and lids arranged along the transport device, including a sealing station (5, 6) adapted to seal a foil section (25) provided with a tear-off tab (29) onto a lid part shaped as lid ring (20′), as well as including a folding station (7) wherein the tear-off tab (29) is folded towards the top side of the foil section, characterized in that a station for adhesive bonding (40) is provided between the sealing station and the folding station, including an application device (41) by means of which an adhesive tape (48) is transported and an adhesive patch. (30) is removed from a carrier tape (58) of said adhesive tape without cutting said carrier tape, and is applied in the station for adhesive bonding onto the top side (26) of the foil section previously sealed onto the lid ring in the sealing station, in a position where the tear-off tab will become to lie in the folding station, and in that the application device (41) provides a deflector (57) for the transported adhesive tape which is arranged after the separating means in transport direction and which deflects the adhesive tape, and in that the station for adhesive bonding is formed in such a way that the respective lid to be provided with the adhesive patch is movable towards and pushable onto the deflector.
Method for manufacturing tear-off lids (28), comprising the steps of
- supplying a web (35) of tear-off foil material;
- punching out a foil section (25) with a tear-off tab (29) from the web (35);
- sealing the foil section (25) onto a lid ring (20′);
- and
- folding back the tear-off tab (29) onto the lid (28), characterized by the steps of
- separating an adhesive patch (30) from a carrier tape (58) of an adhesive tape (48), without cutting said carrier tape;
- and, then,
- applying the adhesive patch (30) onto the sealed foil section in a position where the folded back tear-off tab (29) comes to lie on the tear-off lid (28).
Dependencies are inferred from the claim text.