Method for improving base weight uniformity of prepreg and gluing machine

The invention discloses a method for improving the base weight uniformity of prepregs and a gluing machine. The gluing machine comprises an unwinding device, a glue dipping tank, a glue amount adjusting mechanism, a drying device and a winding/cutting device which are arranged in sequence. The glue amount adjusting mechanism comprises a first metering roller and a second metering roller which are oppositely arranged, a gap between the first metering roller and the second metering roller forms a channel through which glass fiber cloth subjected to glue dipping passes, and the first metering roller is driven by a driving device to move so as to adjust the gap between the first metering roller and the second metering roller; the distance measuring sensor is used for measuring a gap between the first metering roller and the second metering roller; a first online detection device for detecting the thickness of the prepreg is arranged between the drying device and the rolling/cutting device; and the distance measur