According to the authorization announcement number CN213287467U of the National Intellectual Property Administration, Qingdao Huashida Machinery Co., Ltd. has been granted a utility model patent for "A Large-diameter Flow Coating Foaming Machine Device" under the invention of Huang Baodong. The core components of this device include A proportional pump, a large ring sleeve and steel pipes. The proportional pump is respectively connected to the foaming A material tank and the foaming B material tank through the first and second conveying pipes, and a conduit is also connected to the front part. The outer ring surface of the steel pipe is coated with a foaming layer, and a large ring sleeve is placed over the left end. Steel pipe turning units are installed below both ends.
This device has a scientific and reasonable structure. The proportional pump can precisely extract foaming materials in proportion, reducing the operational burden on staff and significantly improving work efficiency. The steel pipe rotating unit drives the steel pipe to rotate, enabling the flow coating gun to complete the flow coating operation of one circle of foaming layer at a fixed position. Moreover, it is convenient for the flattening roller to press the outer surface of the foaming layer flat and smooth, greatly simplifying the operation process.
