The material is transported and moved to the equipment through the upper drum, and is stopped and positioned by the stop and positioning mechanism. All horizontal positioning mechanisms of the upper drum are tightened, and the X-Y direction of the product is positioned. Then, the material pulling mechanism clamps the product and moves it towards the equipment. When it reaches the heating position, the material pulling mechanism stops, and then the upper and lower heating mechanisms run. After reaching the heating completion condition, the heating mechanism resets, Subsequently, the material pulling mechanism pulls the product to the bending position, and the bending mechanism presses down. The pre pressing mechanism first fixes the product, and then the bending knife presses the product stroke. After the bending is completed, the bending mechanism resets, and the material pulling mechanism pulls the product to the next process for transportation, which is then transported to the window opening equipment.