The invention discloses a feeding device for an injection mold. The feeding device comprises a mixing box, a first shell, a second shell, a cleaning mechanism and a
drying mechanism. A feeding openingis formed in the bottom of the mixing box. A feed opening communicating with the feeding opening is formed in the top face of the first shell, and a first
discharge opening is formed in the bottom face of the first shell. The second shell is of a
barrel structure with an opening formed in the upper end, and a second
discharge opening is formed in the bottom face of the second shell. The cleaningmechanism comprises multiple guide components, multiple drainage pipes, multiple sets of sweeping components, a first guide plate and two second guide plates. The
drying mechanism comprises a spiral
pipe, a disc and a rotating shaft. According to the feeding device, plastic particles can be subjected to pretreatment of cleaning dust removal and
drying dehumidification, the quality of the
raw material plastic particles can be improved, it can be guaranteed that raw materials are heated uniformly in the subsequent hot melting
injection molding process, molten liquid is balanced in concentrationand free of bubbles, then the quality of a plastic shell product is improved, and the service life of a plastic shell is prolonged.