Make a cone escape. Its a one way exit you make with aluminum screening. You fashion a cone that fits over the entrance and leaves no crack for the bees to get in. At the tip of the cone you leave just enough room for the drones to escape. This will make the bees not able to return. Then you place another hive next to this cone, with the entrance of the new hive being within a few inches if possible of the cone end. The bees won't be able to get out, and being heavily clustered on the cone, some will eventually find the new hive. Place an empty but used comb of brood to help entice some bees to stay and eventually they'll stay in the new hive. Once enough bees are in the trap you can use a frame of open brood to keep them there and entice more of them to move in and stay. It can take several weeks to finish a job like this. Sometimes you don't get the queen though.