Raw material injection mechanism for glass fiber reinforced plastic grating production

The utility model relates to a raw material injection mechanism for glass fiber reinforced plastic grating production, which comprises an injection box, a conveying channel is arranged in the injection box, the conveying channel extends rightwards to penetrate through the injection box, a feeding hopper is arranged at the upper end of the injection box, the feeding hopper extends downwards to penetrate through the conveying channel, and a feeding port is arranged at the top of the right end face of the top end of the feeding hopper. A connecting block is arranged at the left end of the injection box, a through hole is formed in the position, corresponding to the conveying channel, of the connecting block, a valve element is rotationally arranged in the through hole, a valve rod is connected to the upper end of the valve element, and the valve rod extends upwards to penetrate through the connecting block; a second motor is connected to the upper end of the valve rod, a nozzle is detachably arranged at the left