Material weighing device

The utility model provides a material weighing device. The material weighing device comprises a material collecting part, a sensing assembly, a material blocking part and a first driving device. Firstly, the first driving device is used for driving the material blocking part to be switched to the first state, then materials are injected into the material collecting part through the first opening, and meanwhile the sensing assembly is used for detecting the weight of the materials. And when the weight of the materials reaches the required amount, material injection is stopped, and the first driving device is used for switching and driving the material blocking part to be switched to the second state, so that the required amount of materials are discharged out of the material collecting part. By means of the mode, materials can be temporarily stored through the material collecting piece, the weight of the materials is detected through the sensing assembly, and then the material blocking piece is opened to disch