Glass tube forming machine

The utility model relates to a glass tube forming machine, which comprises a rack, a plurality of glass tubes and a plurality of glass tubes, the feeding device comprises a movable working platform and a plurality of forming parts mounted on the working platform; the heating and shaping assembly comprises a heating furnace body with a furnace core and a lifting part used for controlling the time and the speed of a workpiece entering the furnace core, multiple sections of heating parts are embedded in the heating furnace body, an opening is formed in the tail end of the heating furnace body, and the heating temperature of the heating part close to the opening is smaller than that of the heating part far away from the opening; the clamping and conveying part is installed on one side of the heating and shaping assembly and used for carrying workpieces, a rotary disc is driven by a motor to rotate, meanwhile, a formed part enters a heating furnace in batches through vacuum adsorption of an air exhaust part on a g