Working process of checkweigher/check weight: measure the weight of the product during the transmission process of the product, compare the measured weight with the preset weight range, automatically remove the products whose weight does not meet the standard, or pick products with different weight ranges to the designated weight class area. The structure of the checkweigher is mainly composed of the incoming material speed matching section, the weighing platform of the weighing section, the main control box and the sorting and rejecting section.