Weighing feeder capable of improving metering precision and keeping long-term stability

The utility model discloses a weighing feeder capable of improving metering accuracy and keeping long-term stability, which comprises a case main body, a conveying belt is mounted on one side of the case main body, a first glass fiber resin heat insulation plate is mounted at the top end of a lower mounting plate, and stainless steel screws are mounted in the first glass fiber resin heat insulation plate. According to the utility model, the first mounting rod is firstly subjected to certain mounting treatment, and certain matched mounting work is completed under the arrangement of the second mounting rod, so that the connection work at the position of the lower mounting plate is completed under the mounting of the connecting sheet; the first glass fiber resin heat insulation plate and the second glass fiber resin heat insulation plate which are arranged up and down are fixed through stainless steel screws, and peripheral gaps are sealed through high-temperature-resistant glass cement, so that the overall heat