The invention refers to a machine with continuous cycle which dries the yarn in hanks by warm air insufflation both from the inside and from the outside of the hanks.

At present, the existing machinery foresees the hanks drying by means of hot air blowing-in only from the hanks outside. This cau¬ ses a higher difficulty for drying, with consequent waste of ener- gy and larger time employ for the drying operation.

The invention device permits a quicker and more uniform drying of the yarn hanks; beside foreseeing the classic insufflation of warm- air into the drying chamber, in fact, which gets into contatc but with the hank outside, the insufflation of hot air is foreseen al¬ so from the inside of the hanks bearing arms, so that also the yarns in the hank inside get into contact with the warm air in the same way as the outer ones, perirdtting a continuous air change and

a quicker drying and more ur _3orm action. In order to obtain the best drying action, the rotation of the arms on their axles has been foreseen and, with them, of the hanks put on them, so that the whole inside circumference of nans is repeatedely put into contact with the hot air jet ccming form the arm inside.

The invention device foresees the positioning of the hank 1 to dry on a set of a-rms 2 fitted on a rotating system 11. Such ro t-iting system has been conceived in a way to transfer the hanks into the inside of a ch__nber with closed cycle and in a continuous way. This chamber is contanuously invaded by hot air by means of electrical ventilator 14, and the air is heated by means of heat exchangers 13. One part of the hot air is conveyed into a channel 18 and led into the drying ch__tiber 17 through special openings ma¬ de in the wall 19 which divides the channel 18 frαu the drying chamber 17, while another part of the warm air, always α_ming from the electric ventilator 14, is conveyed into a collector 10 having a perticular conformation to let this part of air enter into the arms 2 and, frcm here, through the bores on the hanks 1 there hanc ing. At the outlet of the drying chairiber, the arms 2 get into con¬ tact with another collector 16 where cold air is put in through the electric ventilator 12, and frcm here the said cold air enters in¬ to the arms 2 and therefore reaches the hanks and cools them. When the arms get the enlarging and unloading position 20, any fanning action ceases.

A execution form is illustrated in a merely indicative way by the cTrawings of Tables 1 and 2. Table 1 represents the particular of hank bearing arm 2, whereas Table 2 is the total view of the devi¬ ce according to the invention.