Non-straightening mode roller box substitution device of straightener

The utility model relates to a non-straightening mode roller box substitution device of a straightener. The non-straightening mode roller box substitution device of the straightener comprises truckles, a guide plate and a vehicle frame, the guide plate is fixed on the vehicle frame, the truckles are arranged on the two sides of the vehicle frame, location pinholes are formed in the vehicle frame, and the vehicle frame is matched with a straightener body in size. The non- straightening mode roller box substitution device of the straightener has the advantages of avoiding unnecessary roller system coping, achieving smooth tape leading, preventing band steel from being damaged, being capable of operating on a roller changing track of the straightener body, and meeting the requirement of rapid replacement in use.