bus timetable from Jianchuan to Lijiang

Hello all. We would be in Shaxi at the end of August (and see its market), after the market, on that same friday, we would like to take a bus from Jianchuan to Lijiang.
I've read we have to take a minivan first from Shaxi to Jianchuan.
Is there any website where we can see bus timetable from jianchuan to lijiang? or can anyone let us know?
I suppose there's no problem in getting a minivan from Shaxi to Jianchuan almost anytime, although if you know their timetable, I would appreaciate it.
Thanks!