I hope you have a wonderful trip!
Supplement to the question:
At about 9: 00 in the morning, take the neoplan bus from Sihui Station to Chifeng, buy a bus ticket to Chifeng and get off at Jinshan Town. The main reasons for recommending you to take this car are comfort, speed and safety. Everyone outside the station is a social black car. These people don't have honest and civilized service, and they don't insure passengers, so once an accident happens, no one can take care of you.
Attached train route map:
When you get to Chifeng, you just need to change trains. ?