Heating ring of injection molding machine

The utility model relates to an injection molding machine heating ring and belongs to the technical field of injection molding machines. The infrared transmitter comprises a shell and an infrared transmitter, the shell is in a circular tube shape and comprises two half shells, one sides of the two half shells are hinged, the other sides of the two half shells are detachably connected through at least one connecting assembly, and an annular mounting groove for mounting the infrared transmitter is formed in the inner wall of the shell. And the plurality of infrared emitters are mounted at equal-angle intervals along the circumferential direction of the annular mounting groove. The heat exchanger has the effect of more uniform heat transfer. 本申请涉及一种注塑机加热圈，属于注塑机技术领域。其包括外壳和红外发射器，所述外壳呈圆管状包括两个半壳，两个所述半壳一侧铰接另一侧通过至少一套连接组件可拆卸连接，所述外壳内壁开设有供红外发射器安装的环形安装槽，所述红外发射器有多个并沿所述环形安装槽周向等角度间隔安装。本申请具有传热更均匀的效果。