Method and device for welding at least two profiled sections for window or door frames or leaves
A method and a device ( 10 ) for welding at least two profiled sections ( 1 ) for window or door frames or leaves uses a heating unit ( 4 ) introduced between the profiled sections ( 2, 3 ) to be joined. At least two heating elements ( 5, 6 ) of the heating unit melt the profiled section ends ( 2, 3 ) at the end surfaces to be joined. In order to chamfer, in particular remove, a profiled section edge layer ( 20 ) of the profiled section ends ( 2, 3 ) along the layer surfaces ( 12, 13 ) thereof, at least one tool, in particular at least one cutting blade ( 7, 8 ), is arranged on the heating elements ( 5, 6 ) and is moved such that the material ( 9 ) to be melted is displaced into the profiled section interior ( 11 ) or into the interior ( 12 ) of the profiled section chambers ( 13 ). A compression device compresses the profiled section ends ( 2, 3 ).
1 . An apparatus configured to weld a first profile and a second profile for window or door frames and casements or leaves, the apparatus comprising:
a heating unit adapted to be introduced and withdrawn between a first profile end of the first profile on a first profile support and a second profile end of the second profile on a second profile support, wherein said heating unit has at least two heating elements including a first heating element and a second heating element, wherein the first heating element and second heating element each comprise a first heating surface for melting the first profile end and a second heating surface for melting the second profile end, and wherein the first heating element and the second heating elements are configured to move relative to each other during the melting of the first and second profile ends to displace melt material formed during melting into an interior of the first and second profiles;
at least one tool arranged on each of the first heating element and the second heating element of the heating unit and configured to chamfer either an upper visible surface or a lower visible surface respectively of each of the first and second profile ends prior to melting the first and second profile ends; and
a swaging apparatus comprising the first profile support for supporting the first profile and the second profile support for support the second profile, wherein the first and second profile supports are configured to move the first and second profile ends into contact with the first and second heating surfaces for melting and to push the first and second profile ends against one another to join the first and second profiles together after the heating unit is withdrawn.
2 . The apparatus according to claim 1 , further comprising a servomotor, wherein the first and second heating elements are configured to be moved and positioned horizontally and/or vertically with the servomotor.
3 . The apparatus according to claim 1 , wherein the at least one tool is a cutting blade having a plurality of cutting edges arranged on each of the first and second heating element as a lower cutting blade and an upper cutting blade respectively, and wherein the lower visible surface is acted on by the lower cutting blade and the upper visible surface is acted on by the upper cutting blade.
4 . The apparatus of claim 3 , wherein each cutting blade is heated by the heating unit.
5 . The apparatus according to claim 1 , wherein the each of the first and second heating surfaces are coated, corrugated, or toothed heating surfaces.
6 . The apparatus according to claim 1 , wherein the at least one tool is heated by the heating unit.
7 . The apparatus of claim 1 , wherein the first and second heating elements are each configured to be moved towards one another.
8 . The apparatus of claim 1 , wherein the first and second heating elements are moveable vertically towards and away from one another and horizontally towards and away from the first and second profiles.
9 . The apparatus of claim 8 , wherein the horizontal and the vertical movement of each of the first and second heating element is independently controlled.