Does Isaiah 53:10-12 teach that the Father poured out His wrath on the servant Jesus?

Yes, I would say so. If there is ever a passage in the Old Testament that teaches it, Isaiah 53:10-12 is probably the strongest. I once went through the Hebrew of it and was amazed at how graphic the words Isaiah used were. That is one of the first places I would go if I were trying to prove that the Father cast His wrath upon the Son and was afterward satisfied that it had been done. That is the passage.