Plastic film and film scrap shredder has upper and lower converging faces with retractable rows of pins for forward movement and light compression of film

摘要

A frame forms a conveying channel(30) for films and has on its base(34) a row of pins(36) which move backwards and forwards along the length of the channel and can be raised above or lowered below the base surface. A second row of pins(52) above the first row and towards the downstream end are raised and lowered by a guiding wall(50) and can also move backwards and forwards along the channel length. A cutting blade moving across the conveying direction is located at the downstream end. The rows of pins(36;52) are mounted on common bars(38,54) each of which is supported on two parallel swiveling levers(40,42;56,58) which raise and lower the bars relative to the base(34). The parallel levers are mounted on two parallel slides(44,46;68,70) which move backwards and forwards on the frame. Downward inclination of the upper guiding wall(50) in the film conveying direction may be varied by a swiveling action.