I bought a soymilk machine on Taobao yesterday. How many days does it usually take to deliver goods from Wuhan, Hubei to Wujiang, Suzhou?

It usually arrives the next day. If it was sent yesterday, it will arrive tomorrow. This is normal.

If you can't sign for it tomorrow, you can contact the local outlets in advance to see if it can be delivered the day after tomorrow, and ask them not to deliver it for the time being. Of course, it depends on the situation of your local outlets. Some people will agree, and some people will have a bad attitude.