Doctor-bar adjusting mechanism for coater and coater

A coater, comprising a body frame, and a supporting plate, a coating liquid dispenser, a roller and a doctor-bar, and further comprising a doctor-bar adjusting mechanism comprising:

• a base bracket, an upper plate and a lower plate secured to the base bracket at two ends thereof, a side of the doctor-bar sandwiched between the upper plate and the lower plate, and another side of the doctor-bar close to a surface of a roller of the coater;
• and
• the upper plate further comprising an adjusting plate on an upper side thereof, the adjusting plate secured to the base bracket at two ends thereof and comprising a plurality of adjusting bolts thereon adapt for adjusting a spacing between the adjusting plate and the upper plate;
• wherein the upper plate and the lower plate are secured to each other via a set bolt;
• wherein the adjusting bolts are disposed penetratingly on the adjusting plate a top end of the adjusting bolts is against the upper side of the upper plate, and the set bolt is located closer to the surface of the roller than adjusting bolts;
• wherein the adjusting plate has a first end near the roller;
• wherein the adjusting bolts are configured for being screwed in to make the top end of the adjusting bolts press against the upper side of the upper plate such that the upper plate bends downwardly and the another side of the doctor-bar is more close to the surface of the roller and meanwhile the first end of the adjusting plate moves away from the set bolt, and the upper plate configured for being loosened to make the doctor-bar move away from the surface of the roller.