After my delivery periods happening.. sometimes for at least for 5-10 min it overflow that ol my clothes get wet along with pad and flow is too much that floor gets dirty. Is it normal or for what reason it happens?

Please use proper pads.. how many days post delivery? Was it a normal or c section.
You can visit your doctor if this continues..

After delivery you will bleed till 46 days. Use pads.

This heavy flow will remain for 5 days if it is more than that please see your doctor immediately