Automatic preparing device for forming agent

The invention discloses an automatic preparing device for a forming agent. The automatic preparing device comprises a rack, wherein a preparing channel is formed in the middle of the rack; one side ofthe preparing channel is provided with a plurality of water bath wax melting barrels, the other side of the preparing channel is provided with a plurality of common barrels, each water bath melting barrel is provided with a water bath cavity, and is connected with a hot water tank through a pipe; each water bath wax melting barrel is further provided with a first discharging port facing the preparing channel, and the first discharging ports are provided with first discharging control valves; each common barrel is provided with a second discharging port facing the preparing channel, and the second discharging ports are provided with second discharging control valves; and a rail in the direction of the preparing channel is arranged in the preparing channel, and a material receiving and transferring platform capable