Cold chamber die-casting assembly for producing automobile transmission case shell and die-casting method

The invention relates to the technical field of die-casting machines, in particular to a cold chamber die-casting assembly for producing an automobile transmission case shell and a die-casting method.The cold chamber die-casting assembly comprises a movable die, a fixed die and a feeding mechanism, the feeding mechanism comprises a feeding barrel and a knockout connecting body which extends into the feeding barrel and can extrude molten metal liquid in the feeding barrel into the cavity, a fixed disc and a rotating disc which can rotate relative to the fixed disc are arranged in the feeding barrel, a first communicating opening is formed in the fixed disc, and a second communicating opening communicated with the first communicating opening is formed in the rotating disc; the fixed disc and the rotating disc are arranged in the feeding barrel, so that the rotating disc can rotate relative to the fixed disc so as to communicate with the first communicating opening and the second communicating opening before the