摘要:
The present invention relates to a glass plate manufacturing apparatus which forms a glass ribbon by continuously supplying molten glass to a bath surface of a molten metal bath, and carries the glass ribbon forward along the bath surface, the apparatus containing: a plurality of pairs of top roll bodies configured to support end portions in a width direction of the glass ribbon; a plurality of heaters provided in a predetermined heater area above the glass ribbon; and a plurality of controllers, in which the heater area includes a plurality of rows arranged along a conveying direction of the glass ribbon, in which one or more of the heaters are provided in each subarea obtained by sectioning each of the rows in the width direction of the glass ribbon, in which the heater(s) within the respective subarea are collectively controlled by one of the controllers, which is provided corresponding thereto, in which a boundary between every two adjacent rows is taken as a dividing portion and a boundary between every two adjacent subareas in each of the rows is taken as a sectioning portion, and in which at least one of discontinuous points is present between sectioning portions in one of two adjacent rows in the heater area located between the mostupstream pair of the top rolls and the mostdownstream pair of the top rolls .
摘要:
The present invention relates to a float glass manufacturing method and apparatus which forms a glass ribbon by continuously supplying molten glass to a bath surface of a molten metal bath and carries the glass ribbon forward along the bath surface, the apparatus containing: a plurality of pairs of top roll bodies configured to support end portions in a width direction of the glass ribbon; a plurality of rows of heaters provided in a predetermined heater area above the glass ribbon; and a plurality of controllers, in which the heater area is divided to a plurality of rows arranged along a conveying direction of the glass ribbon, in which one or more of the heaters are provided in each subarea obtained by sectioning each of the rows in the width direction of the glass ribbon, in which the heater(s) within the respective subarea are collectively controlled by one of the controllers, which is provided corresponding thereto, in which a boundary between every two adjacent rows are taken as a dividing portion (17), and in which a distance (L) along the conveying direction of the glass ribbon between the dividing portion closest to the rotation center of the mostdownstream top roll body and the rotation center of the body of the mostdownstream top roll is set to be within a predetermined range.