Hot bending apparatus for glass

Abstract

The invention discloses a hot bending apparatus for glass. The hot bending apparatus for glass comprises a base, a PLC control system, a feeding device, a processing device and a discharging device, wherein the feeding device comprises a feeding station, a mold, a pre-protection box, cylinders and feed inlets; and the processing device comprises buffering stations, preheating stations, a molding station, a pressure-maintaining station, cooling stations and a kick-out assembly. The invention also discloses the process flow of the hot bending apparatus for glass. The hot bending apparatus provided by the invention adopts induction heating, so energy consumption is substantially reduced; protection gas is used in the process of production, so the loss of the mold is lowered, and cost is reduced; the product yield of the hot bending apparatus is 95% or above, and work efficiency is improved by 4 times or more; and the hot bending apparatus utilizes the PID temperature control function of PLC and controls the temperature of a to-be-heated object, and the heat utilization rate of the apparatus reaches 90% or more, so the utilization rate is substantially improved, and good usage effect is obtained.

Description

technical field [0001] The invention relates to the field of glass processing, in particular to glass hot bending equipment. Background technique [0002] Glass is a transparent solid at room temperature. It forms a continuous network structure when it melts. It is a silicate non-metallic material that gradually increases in viscosity and hardens during cooling. The chemical composition of ordinary glass is Na2O·CaO·6SiO2, and the main component is silicon dioxide. Glass is widely used in buildings to prevent wind and transmit light, and it is a mixture. The molten glass needs to be processed. There are many ways to process glass, and hot bending is one of the common glass processing equipment. At present, the mainstream hot bending glass equipment on the market is tunnel furnace and heating plate heat conduction furnace, but the existing hot bending equipment has the following disadvantages: first, the overall heating is adopted, the heat is dissipated quickly, and the hea...

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Problems solved by technology

At present, the mainstream hot bending glass equipment on the market is tunnel furnace and heating plate heat conduction furnace, but the existing hot bending equipment has the following disadvantages: first, the overall heating is adopted, the heat is dissipated quickly, and the heating energy consumption of ordinary heating tubes is high; second , the equipment cannot be sealed, and the protective gas cannot be added to protect the mold, resulting in large mold loss and high processing costs; third, the quality of the hot-bent product is poor, and the glass has pits, crystal points, pockmarks, unevenness, arches and The produced glass is easily broken; fourth, the production efficiency of hot bending molding is low, the temperature control is not accurate, only the overall temperature can be controlled, and the temperature of the processed product cannot be controlled, which brings inconvenience to users

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