Screw -down device of hot bender

The utility model discloses a screw -down device of hot bender, the device install at the top of the heating cavity of hot bender, including hot plate and clamp plate, still include servo motor, and a support, the fly leaf, guiding axle and pressure sensor, the support lower extreme is installed on the clamp plate, servo motor installs at the support top, the guiding axle lower extreme passes through the fixed plate and is connected with the hot plate, this guiding axle upper portion upwards pass the clamp plate and with this clamp plate fixed connection, fly leaf activity suit is on this guiding axle, pressure sensor fixes on the fly leaf, the servo motor dress has met transfer line mechanism, this transfer line mechanism and pressure sensor fixed connection, transfer line mechanism comprises ball screw and ball nut, ball screw passes through the shaft coupling and is connected with servo motor, ball nut locking is on ball screw, the ball nut passes through bolt and pressure sensor locking joint. The utility