I'm not sure if I am understanding you. A wine plant I am finding it's another name for rhubarb, which is poisonous to chins. No part of that plant is safe for chins to eat.
Or do you mean wine plant as in a grape plant? Grape vines are safe, you just need to prepare and dry them like you would other wood. Also, like any other wood used for chins, make sure it was never ever sprayed with any chemicals, they can stay inside wood for many years and in some cases decades. The wood and the curly vines from it chins tend to love.