Preparation method of LED (light-emitting diode) light-emitting part

The invention provides a preparation method of an LED light-emitting part, which comprises an LED light-emitting part separation stage, and the LED light-emitting part separation stage comprises the following steps: (A1) brackets are placed in a limiting groove of a turntable in an up-and-down laminated manner, and the bottom of the limiting groove is provided with a through hole allowing a moving part to pass through; (A2) when the limiting groove rotating along with the turntable reaches the transfer position, the identification unit identifies that the bracket is arranged in the limiting groove at the transfer position, and the turntable stops; (A3) the moving part vertically moves upwards, penetrates through the through hole and pushes the stacked supports to move upwards; (A4) the transferring unit transfers the support on the upper layer and sends the support to the twisting unit; (A5) twisting connecting parts on the left and right sides of the grid by the twisting unit, separating the LED light-emitti