Ink pooling on sides on squeggee and flood bar

We have been silk screen printing here for 20+ years with a straight aluminum flood bar and flat rubber squeegee. This works fine but my operators have to go back to the printers every 10-15 minutes to scrape the enamel back to the center as is pools on the sides. Does anyone know a way or company that makes something that can redirect the enamel back to the center so they don't have to do this? Maybe a curved device on the ends of the flood bar? Thanks.