Continuous foaming production method for polyurethane plate

The invention discloses a continuous foaming production method for a polyurethane plate. The continuous foaming production method is characterized by specifically comprising the following steps of a, synchronously feeding left and right side face paper, upper surface paper and bottom glass fiber cloth on a conveying crawler belt of foaming equipment to form a foaming cavity on the conveying crawler belt; b, spraying a polyurethane foaming raw material on the bottom glass fiber cloth before the glass fiber cloth enters the foaming cavity; c, flattening the upper surfaces of an ascending section and a flattening section of a foaming body in the conveying and foaming process by using a pressing device; d, after the foaming body is formed and cured, separating the foaming body from the side paper and the surface paper, and recycling; e, cutting the foaming body into a polyurethane foaming plate with a required size by using a cutting device; and f, weighing the polyurethane foaming plate, spraying codes on the po