Rack-and-pinion type plastering machine

The utility model provides a pinion and rack plastering machine. A fixed guide rail is fixed on the base with wheels vertically; a plastering device is arranged on an elevator and is communicated with a mortar pump. The utility model is characterized in that: a mobile guide rail is added; the driving device of the mobile guide rail comprises a worm wheel reduction motor fixed on a platform, a gear arranged on the end of a worm wheel shaft via a key and a rack meshed with the gear and fixed on the inner side of the fixed guide rail; the mobile guide rail is fixedly connected with the platform; an elevator driving device comprises a worm gear motor fixed on the platform, a gear arranged on the end of the worm wheel shaft via a key and a rack meshed with the gear and fixed on the inner side of the mobile guide rail; the elevator is fixedly connected with the platform fixing the worm gear motor and is connected with the plastering device via a shock absorption device. The power of the utility model is driven by t