Sealing guide preheating device

A sealing guide preheating device comprises a seat frame, a first heating single body and a second heating single body, the seat frame comprises a longitudinal frame plate, a transverse frame plate, an end longitudinal frame plate and a bottom inclined seat plate, a main body of a second air cylinder is hinged to the longitudinal frame plate, and a piston rod is hinged to a horizontal arm of a second angular transmission arm. The two ends of the second shaft body are rotationally matched with the second pivoting holes; a body of the first air cylinder is fixed to the bottom inclined base plate, a piston rod is hinged to a horizontal arm of the first angular transmission arm, the two ends of the first shaft body are rotationally matched with the first pivoting holes, and the first heating single body is opposite to the second heating single body. The first heating single body and the second heating single body are oppositely arranged to preheat the sealed plastic bag, and then the sealed plastic bag enters the