Prefabricated highway small box girder end mold device with variable side angle

The invention discloses a prefabricated highway small box girder end mold device with a variable side angle, and particularly relates to the technical field of highway bridge construction.A first web template and a second web template are both aligned with the attaching portion of the end of a box girder, and a linear mold withdrawing assembly pulls the second web template to do linear motion; when the rotating template is rotated, the end part of a mounting seat III and a rotating template IV are driven to rotate, a connecting transverse plate and the rotating template III are driven to move together, and at the moment, one end of the rotating template III and a mounting seat II rotate, so that the box girder with the end part angle is obtained; the linear die withdrawing assembly pulls a web template to move linearly, drives the end of a second mounting seat and a third rotating template to rotate and enables a connecting transverse plate and a fourth rotating template to move together, at the moment, one e