Double-chamber four-station glass bending and toughening device and control method thereof

Abstract

The invention discloses a double-chamber four-station glass bending and toughening device and a control method thereof. The double-chamber four-station glass bending and toughening device consists of a preheating furnace, a first-station heating area, a second-station heating area, a heating furnace, a third-station heating area, a fourth-station heating area, a bent steel forming section, a variable arc mechanism, a die attach section, a die taking section, a matrix temperature control module, a porcelain tube, a heating furnace wire, a furnace wire lead-out rod, a thermocouple, a transfer roller, glass and a motor. The control method comprises the following steps: automatically controlling different heating temperatures and heat preservation time by a matrix fuzzy control program according to different parts of the glass, continuously heating and preserving the temperature after the temperature of the whole glass is consistent, cycling the process till the whole glass in the first-station heating area, the second-station heating area, the third-station heating area and the fourth-station heating area is heated to a set temperature, and uniformly heating the glass progressively. Therefore, the overall temperature of the glass is consistent, and a phenomenon that the glass quality is influenced due to different heating temperatures of various parts is avoided.

Description

technical field [0001] The invention relates to the technical field of tempered glass heating, in particular to a double-chamber four-station glass bending tempering device and a control method. Background technique [0002] The ordinary tempered glass process is to heat the glass to a tempering temperature range of 650-730 degrees, and then cool it rapidly. Because the cooling speed of the glass surface and the interior is different, a higher stress is formed on the glass surface. , since the softening temperature of glass is above 550 degrees, and the heating of the object is that the four sides and the outer layer are heated faster, and the center is heated more slowly, so that if the glass enters the heating section, the given heating temperature is about 700 degrees, it will The surrounding of the glass has been overheated and distorted, but the center has not been heated enough. However, the surface quality of glass used in automobiles is getting higher and higher. Th...

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Problems solved by technology

[0003] After searching, the publication number is CN1224406A, and the name is "Heating Furnace for Heat Treatment of Glass Plates", which includes a longitudinally elongated chamber, which accommodates a roller conveyor device for glass plates. The heating furnace is characterized in that , which comprises radiation heating means combined with first and second means for heating by forced convection of air in which the temperature of the air is controlled by regulating its circulation rate, said means being arranged respectively in said The top and bottom of the conveyor device, and therefore are respectively set above and below the glass plate being processed. During the heating process, the four sides and the outer layer of the glass plate are heated at a high temperature, while the center temperature is low, and the overall temperature of the glass plate is difficult to achieve uniformity. , the quality of the glass plate is not ideal

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