Oven farm not working?

I'm playing Minecraft on a server and wanted to build an oven farm that melts automatically and stuff. Since I didn't want to use funnels because they cost a lot of iron, I wanted to use a funnel lore. But it doesn't work. What I put in the chests upstairs goes into the lorry, but not out again.
Can someone help me on this?
LG
Hype biscuit

You won't get far without more hoppers

You can only pull something out of the funnel cart from below if it is itself on a funnel.

Why this is so has already been answered… But iron can also be found relatively quickly! Find the iron and build the oven according to the instructions!