Automatic machine for hot gluing of springs box. The automatic AX-H machine has been designed to automate the glue delivery operations during the production of spring mattresses. The AX-H machine can work in stand-alone mode, or in line with an assembly belt and a press, to be able to produce spring mattresses in line. The AX-H hot melt gluing machine is fully automated and is able to autonomously manage glue delivery phases through the control that manages the times and the paths of the nozzles. The AX-H machine spraying bar is fitted with a minimum of 5 nozzles that deliver the adhesive (multiline, spiral or single line) on the perimeter and in the centre according to the specific requirements. The AX-H automatic gluing machine is managed by a numeric control and consists of a loading conveyor belt, a belt in stick-proof material and a glue delivery belt on which the hot-melt delivery nozzles are installed and move. The paths for the-hot melt delivery nozzles can be inserted either by recipe or automatically learnt by the machine according to the automatic detection of the dimensions of the part to be glued so as to obtain a flexible solution for any type of production lot. According to the type of glue to be used and the production requirements, the AX-H gluing machine will be prepared with the best glue feeding system (melter, pressing plate, gear pump or pistons, etc).