Automatic calibration device in kind of belt weigher

The utility model belongs to an automatic calibration device in kind of belt weigher, origin material conveyer belt, walk to expect the conveyer belt, weighing sensor and controller are constituteed, the supplied materials conveyer belt and walk to expect the space between the conveyer belt in establish in the middle of the blanking pipe, the subaerial support frame that is equipped with in left side of middle blanking pipe, weigh and be the spacing distance on the upper portion perisporium of hopper and be equipped with 3~4 fixed ears, hang through the weighing sensor that concatenates and pull rod between the upper end support frame of every fixed ear and the portion of corresponding and connect the messenger to weigh the hopper to hang in the middle part of support frame, the import of hopper and the upper end lateral wall of middle blanking pipe of weighing communicates with each other, weigh the hopper the export with walk the material import and communicate with each other, it pushes away the valve plat