Robots move the automated shelves in Kawara Tsutomu's home.

Something like this. It's on a treasure. It's called a wheeled coffee capsule rack. There doesn't seem to be one in China. The structure should be similar. If it is automatic, just add power devices, gears and chains to the wheel bearings. I look forward to producing such products in China. Although you asked the question three years ago, I still hope you can create it and look forward to it (you can try to apply for a patent, if there is no relevant existing patent in China).

Ah, I checked, and someone really applied for a patent. It looks different, but it seems to be out of date.

Patent application number: CN20 1 120282898.8.

You can refer to it, but be careful not to infringe others' patents (maybe others have already applied)