Quartz sand production grinding device

The utility model relates to the technical field of quartz sand grinding equipment, and discloses a quartz sand production grinding device which comprises a box body, a grinding hopper is fixedly installed at the upper end of an inner cavity of the box body, a rotary grinding block is arranged in an inner cavity of the grinding hopper, a fixing frame is fixedly installed at the lower end of the grinding hopper, and a hinge seat is fixedly installed at the lower end of the fixing frame. According to the technical scheme, by arranging the box body, the grinding hopper, the scraping strip and the second spring, when the grinding device is used, the pull rope can be wound by the transmission rod, and the pull rope pulls the scraping strip to move rightwards, so that dust and impurities deposited at the bottom of the box body are scraped to the right side of the box body to be discharged, and the trouble of manual secondary cleaning is saved; and in the rotating process of the transmission rod, a cam rod on the tr