Anti-wire-drawing die sprue bush

The utility model discloses an anti-wiredrawing mould sprue bush, which relates to the technical field of injection moulds, and comprises a panel and an anti-wiredrawing pouring bush body arranged on the panel, the side wall of the anti-wiredrawing pouring bush body is fixedly sleeved with a shell, the upper end of the panel is provided with a placing groove, the lower end of the shell is contacted with the upper end of the placing groove, and the upper end of the placing groove is provided with an anti-wiredrawing mould sprue bush. Two first fixing mechanisms used for fixing the anti-wiredrawing pouring sleeve body are arranged in the shell, each first fixing mechanism comprises a sleeve rotationally connected to the inner bottom of the shell, and a cam is fixedly connected to the side wall of each sleeve. According to the utility model, a bolt mounting mode is replaced, external tools are not needed, the mounting and the dismounting are simple and convenient, so that the injection molding efficiency is impr