Granulator for thermoplastic elastomer

The granulator comprises a machine body, a feeding mechanism and a granulating hob, a granulating channel is reserved between the granulating hob and the feeding mechanism, a blast cooling mechanism is arranged in front of the feeding mechanism and comprises side blast pipes, and the side blast pipes are arranged on the two sides of the material conveying channel. The feeding mechanism comprises a lower traction feeding roller and an upper pressing roller, the upper pressing roller is of a hollow structure, and a cooling channel arranged around the inner cavity wall is formed in the inner cavity wall of the upper pressing roller; the two ends of the cooling channel are connected with a cooling liquid inlet pipeline and a cooling liquid outlet pipeline through a liquid inlet end rotating connecting pipe and a liquid outlet end rotating connecting pipe, a pipeline connecting through hole is formed in the middle of a rotating shaft of the upper pressing roller, and the cooling liquid inlet pipeline and the cooli