Using Barcodes to automatically generate document file names

We are small custom manufacturers.  We currently have 2 scanners, one in the front office and one in the production/shipping department.  We scan everything that moves through our organization: SOs POs and especially work tickets for the manufacturing processes. The scanner generates a file name based on date and document number scanned that day.  Our office staff then goes in throughout the day and as they have time and renames the file following a preset naming system.  This a simple and effective method however, if the office is busy it can be a day or more before it is done.  I am looking for software that allows me to add a barcode to my QB documents: Sales Orders etc, based on combining the following fields: CustomerName, SO number, Date, template name, and a custom field I use for my customers customers name.  I am then looking for software which will read this combined field barcode when the document is scanned at one of the 2 locations, and rename the file for me.  I need something rather straight forward and not to expensive.  We probobly generate 30 to 50 documents a day.  Any ideas are appreciated.