Raw material weighing equipment for preparing ibuprofen injection

The utility model relates to the technical field of ibuprofen injection preparation, discloses a raw material weighing device for ibuprofen injection preparation, and solves the problem that the internal precision of an existing raw material weighing device for ibuprofen injection preparation may be affected by dust fog. According to the utility model, dust fog in the protective cover can be conveniently removed through the dust removal structure, dust fog can be blown out of a container filled with raw materials during weighing, at the moment, the fan is started to exhaust air in the protective cover, air enters the air outlet pipe, and air enters the mounting ring in the air outlet pipe; the filter screen in the mounting ring can filter out raw materials in air, meanwhile, air can enter the fixing ring, filter cotton in the fixing ring can filter out impurities in the air, an air channel is formed between the fixing ring and the fan, the mounting ring is taken out from the interior of the air outlet pipe af