| 摘要 |
FIELD: metallurgy. ^ SUBSTANCE: proposed device comprises first part that includes first jaw and second jaw to produce feed slit. Said first part comprises also rear section, front section, clearance between said sections and slit adjustment appliance mechanically transferred inside said slit to allow front section move relative to rear section. Front section carries first jaw that makes second jaw move relative to second jaw with front section moving in one direction. This allows adjusting the feed slit. Slit shape and slit adjustment appliance are selected so that motion in second direction, opposite the first one, is constricted by preset parametres to allow fixed position of first part front section, hence, fixed position of first jaw. ^ EFFECT: adjusting feed slit size to preset accuracy. ^ 23 cl, 7 dwg |
