Device for introducing rolled-steel sections into a cold shear

An apparatus for feeding and introducing rolled steel sections into a cold shear or straightening machine including a roller path for carrying said steel sections and for transporting said steel sections at a speed of transport in a direction of transport toward one of said shear and straightening machine, said apparatus comprising:

• a carriage arranged above said roller path and comprising a drive for moving said carriage along said direction of transport at a speed;
• means connected to said carriage for holding down said steel sections;
• and
• a holding device comprising a lift magnet mounted on said carriage, said magnet being displaceable on said holding device relative to said holding device along a predetermined path parallel to said direction transport of said carriage, said lift magnet comprising means for measuring the displacement of said magnet along said predetermined path relative to said holding device and for generating and transmitting a signal to said carriage drive as a function of said displacement for adapting said speed of movement of said carriage to said speed of transport of said steel sections.