Decoiler

• Supporting structure made of welded steel, widely dimensioned
• Spindle shaft supported by double roller bearings
• The expansion and closing of the spindle is carried out by wedges with hydraulic movement.

1.1 Motorized lateral translation by slides for coil alignment and coil loading

1.2 Snub arms
Integrated in the upper part of the decoiler, moved by means of a hydraulic cylinder, it is sized to contain the materials during insertion. The wheels coated with polyurethane allow not to damage the surface of the material, the movement is activated by the control pulpit.

1.3 Coil holding conical guides
Fixed discs on the rear part and mobile cone on front part. The cone ensures the containment of the coil during coil unwinding

1.4 Decoiler turret rotation by 180°

Straightener

2 Straightener with fix head

• Motorized overlapping pinch rollers placed at the entrance with pneumatic opening and closing of the upper rollers
• Motorized lower straightening rollers
• Upper idle straightening rollers contained in a weighing monobloc
• Block adjustment of the upper straightening rollers through motorized mechanical jacks with quota display on the touch panel

2.1 Strip guide
Positioned at the entrance, the rollers allow to keep the belt guided during the feeding of the material

2.2 Hydraulic threading table for strip beginning to help strip insertion coming from the coil. The upper deflector roller facilitates the containment of the material bending while the extension of the table facilitates the removal of the sheet of the different diameters of the coil

2.3 Shearing and welding Unit (head-and-tail)

• Shearing and welding unit are released with independent movements, to allow better and faster cutting of both the head and tail of the strip, with a fall onto a chute that conveys to a collection box outside the safety fences
• Shear with inclined blade with entry rollers
• Blank-holder on both ends of the strip (tail-head)
• Automatic system to allow you to space out slightly
• Head and tail of the strip of a value selectable by the operator and can be stored in the working recipe (e.g. 0 – 0.5 -1 mm etc.) to help the complete penetration of the weld and avoid breakages of the same.
• Self-centering motorized strip containment guide to align both ends of the head and tail
• Motorized movement of the torch in the working position
• Movements in manual and semi-automatic cycle (after cutting) welding is performed with the sole consent of the operator.
• The welding is of Tig type in an argon protective atmosphere (gtaw)
• Welding unit with Profinet interface for passing data into the recipe

Strip change cycle a sensor detects the passage of the tail and stops the feeding of the material at needed time, switching the line operation from automatic mode to manual mode. the cutting of the tail takes place in semi-automatic mode, starting a sequence of further cuts performed with the shears in the all position (welding machine side), the cut pieces fall into a dedicated box outside the fences by means of a slide.Moving the welding machine on the welding axis, at this point activate the command for strip feeding up to the head-tail contact with set gap, checking the strip centering with a camera and locking with blank holder, consent for the execution of the welding cycle; with the phases of quick approach, start of welding, execution of welding, end of welding, quick exit and blank holder opening. Then, the operator must switch the automatic operating mode2.4 strip clamping pincher

2.5 idle rolling table to feed in the sheet
Consisting of 4 rolls

2.6 base-on-stand-floor, fix height

2.7 loop control
Duly sized structure positioned astride the loop. The necessary controls are applied to the support to manage the lung of material between the straightener and the feeder allowing the machine positioned upstream of the line to follow the production continuously without stopping.