The utility model provides a blank device for making solid silica gel, including pushing down bearing structure, the feed cylinder, the charging ram, the guide post, a spring, the spacing piece of push pedal and push pedal, the both ends opening of feed cylinder link up, in the feed cylinder mounting hole that the feed cylinder assembly was seted up on pushing down bearing structure, the guide post is fixed on pushing down bearing structure, the push pedal is installed on the guide post with the mode that can follow the guide post and reciprocate, the spacing piece of push pedal sets up on the guide post, a distance that rises for limiting the push pedal, the bottom in the push pedal is fixed to the charging ram, lower pot head so as to activity from top to bottom in the feed cylinder in the feed cylinder of charging ram, the spring is disposed under the push pedal, the spring is that the spiral compression spring on the guide post is established to the cover, a push pedal is automatic upwards to be resetd for making pushed down. This blank device can surely go out the solid silica gel raw materials according to the weight of accuracy to improve the shaping precision of product during the shaping in solid silica gel raw materials and structure mould.