A method for forming metal frames for reinforced concrete comprises picking in succession individual stirrups (12) having a closed or open profile at a front input region (E), and transferring each individual stirrup (12) from the input region (E) by way of grip means (51) that can move along a longitudinal direction. The picked stirrup (12) is transferred to welding means (80) associated with traction means (74) that can move along the longitudinal direction. At least one longitudinal auxiliary rod (11) is fixed externally to each bracket (12) and is retained by the welding means (80). At the same time, the welding means (80) are moved alternately into a forward position, by the actuation of the traction means (74), in order to produce the stepwise traction of the auxiliary rod (11) and of the stirrups (12) during coupling thereto by the welding means (80), so as to form an intermediate lattice (10) for the final production of a frame. The invention also relates to an apparatus for forming metal frames.

A method for forming packs (10) of stirrups (12), entails arranging or picking up at least one first stirrup (12) at a front input region (E) and picking up the stirrup (12) by way of grip and welding means (5) that can move along a longitudinal direction with respect to the aid input region (E). Then the alternating movement of the grip and welding means (5) into a forward position is produced in order to draw the stirrup (12) into the same forward position. At least one longitudinal auxiliary rod (11) is fixed externally to the stirrup (12), which is retained by the grip and welding means (5). A series of additional stirrups (12), picked up in succession by the grip and welding means (5) at the input region (E), is arranged adjacent to the first stirrup (12) drawn into the forward position, so as to form a pack (10) of stirrups (12). The longitudinal auxiliary rod (11) is fixed externally to at least the last stirrup (12) and finally is cut ahead of the resulting pack (10). The invention also concerns an apparatus for forming packs of stirrups and a pack of stirrups thus formed.

The manufacturing device for the three-dimensional composition comprising by composing three dimentional X interconnecting structural part (the 3X interconnecting structural composition ST1, the 4X interconnecting structural composition ST2, and the 6X-3X interconnecting structural composition ST3) by applying the composition principle of the braid. The manufacturing device for the three-dimensional composition, comprising the three-dimensional compositions ST1, ST2, ST3 by the numerous filiform elements pulled out of the numerous bobbins 2 individually, characterizes in having the filiform element supply means 3 for supplying said numerous filiform elements individually to the composed position P1, the filiform element distributing means 4 for composing numerous filiform elements supplied from the filiform element supply means are supported by at least three and the filiform elements from at least three directions are interconnected at intervals to the composing direction and they diverge to at least three directions and the composition pulling-up means 5 for pulling up the composed composition.

The manufacturing device for the three-dimensional composition comprising by composing three dimentional X interconnecting structural part (the 3X interconnecting structural composition ST1, the 4X interconnecting structural composition ST2, and the 6X-3X interconnecting structural composition ST3) by applying the composition principle of the braid. The manufacturing device for the three-dimensional composition, comprising the three-dimensional compositions ST1, ST2, ST3 by the numerous filiform elements pulled out of the numerous bobbins 2 individually, characterizes in having the filiform element supply means 3 for supplying said numerous filiform elements individually to the composed position P1, the filiform element distributing means 4 for composing numerous filiform elements supplied from the filiform element supply means are supported by at least three and the filiform elements from at least three directions are interconnected at intervals to the composing direction and they diverge to at least three directions and the composition pulling-up means 5 for pulling up the composed composition.

Das Obermesser (1) dient zum Schneiden eines Streckmetallgitters (3), bei dem einige Knotenpunkte (5) durch- oder angeschnitten sind, um die räumliche Anformbarkeit des Streckmetallgitters (3) an unregelmäßig geformte Gegenstände oder Unterlagen zu verbessern. Zur Herstellung eines solchen Streckmetallgitters in einem Arbeitsgang ist das Obermesser (1) so ausgebildet, daß der Scheitelpunkt (4) des größeren Winkels (α) zwischen einigen der Schneidzähne (2) in Schneidbewegungsrichtung tiefer liegt als der Scheitelpunkt (5) der kleineren Winkel (β) zwischen den übrigen Schneidzähnen (2).

The invention relates to a method for manufacturing a netting of metal wire, whereby starting from drawn wire of steel with < 0,25 % C, this wire is annealed and a netting is formed of the thus annealed wire, whereby the wire is continuously drawn from a spool, conducted through an annealing apparatus and thereupon formed into a netting.