Glass manufacturing device

A glass manufacturing device, comprising:

• a work container having an opening;
• a loading device received in the work container and configured for supporting a glass substrate;
• a sandblaster opposite to the loading device, the sandblaster comprising a fixing plate and a jet, the fixing plate covering the opening and defining at least one first through-holes, the jet perpendicularly extending through a top surface and a bottom surface of the fixing plate and communicating with the work container, the jet configured to blast sands onto the glass substrate to cut the glass substrate;
• a shield device movably received in the work container and arranged between the loading device and the sandblaster, the shield device comprising a shield cover and a fixing frame fixing the shield cover, the area of the fixing frame slightly smaller than that of the opening, the fixing frame defining at least one second threaded through-hole, the shield cover having a plurality of shield units, the shield units configured for shielding portions of the glass substrate and preventing the portions of the glass substrate from being cut during the process of sandblasting, wherein the surface of each shield unit facing the bottom of the work container is engaged with an elastic washer;
• a lift device received in the work container, the lift device configured for pressing the shield device on the glass substrate during the process of sandblasting, the lift device comprising at least one support pole and at least one elevator motor, one end of the at least one support pole inserting through the at least one first through-hole and coupling to the at least one elevator motor, the other end of the at least one support pole being threaded and engaging with the at least one second threaded through-hole;
• and
• a control device configured for controlling the lift device to carry the shield device to move relative to the loading device.