Glass heating furnace

A glass heating furnace comprising:

• a furnace body comprising a rack and a chamber, wherein an interior of an upper portion of the rack is formed with the chamber;
• a plurality of upper heating elements disposed in the chamber with a center of each upper heating element being separated from a center of a neighboring upper heating element by a first distance, wherein the upper heating elements are used to heat a glass in the chamber;
• a plurality of lower heating elements disposed in the chamber and located oppositely below the upper heating elements, with a center of each lower heating element being separated from a center of a neighboring lower heating element by a second distance, wherein the lower heating elements are used to heat the glass in the chamber;
• a plurality of rollers disposed in the chamber along a transversal axis and separated from each other and located between the upper heating elements and the lower heating elements, with the transversal axis being perpendicular to a longitudinal axis and that longitudinal axis being parallel to axes of the rollers;
• a roller driver disposed outside the furnace body, connected to the rollers, and used to control the rollers to rotate;
• a movable frame slidably connected to a lower portion of the rack of the furnace body and wherein the rollers are connected to the movable frame;
• and
• a movable frame driver disposed on the furnace body, wherein the movable frame driver controls the movable frame to move reciprocatively along the longitudinal axis with respect to the lower portion of the rack, and wherein all of the rollers are driven to simultaneously move reciprocatively along the longitudinal axis, wherein amounts of movement of each of the rollers along the longitudinal axis are identical to each other.