Automatic impregnation device for glass fabric

The utility model discloses an automatic impregnation device for glass fabric, which comprises an impregnation box, a tensioning mechanism is mounted in the impregnation box, the tensioning mechanism comprises a sliding groove formed in the inner wall of the impregnation box, the inner wall of the sliding groove is connected with a sliding block in a sliding manner, the side wall of the sliding block is rotatably connected with a tensioning roller, the inner wall of the sliding groove is rotatably connected with a reciprocating lead screw, and the reciprocating lead screw is connected with a motor. The side wall of the reciprocating lead screw is in threaded connection with the sliding block, a first motor is fixedly connected to the lower end of the gum dipping box, the output end of the first motor penetrates through the lower end of the gum dipping box and is fixedly connected with the reciprocating lead screw, two fixing frames are symmetrically and fixedly connected to the upper end of the gum dipping bo