This is not how ranges works.
You have full examples here: https://www.elastic.co/guide/en/elasticsearch/reference/6.3/range.html
If you don't succeed to make it work provide a full recreation script as described in About the Elasticsearch category. It will help to better understand what you are doing. Please, try to keep the example as simple as possible.
A full reproduction script will help readers to understand, reproduce and if needed fix your problem. It will also most likely help to get a faster answer.