Mechanism for feeding foil material to an intermittently working hose bag machine - has form shoulder to which transport device is fitted so the foil material is unrollable from a storage roller

摘要

A compensation roller (4) is fitted between the storage roller (3) and the form shoulder (2) and between the compensation roller and the form shoulder is a brake roller (5) provided with a selectively operable brake. The foil material winds around the brake roller at an angle of 180 deg. The brake roller is fitted between two stationary guide rollers (6,7) and the compensation roller is located on a pre-tensioned pinion (8). The brake roller has a rubber-type a high frictional value top surface and the brake fitted is electromagnetically operable. USE/ADVANTAGE - When the foil material is stationary a brake roller retains it and prevents any jerky accelerations.