A kind of glass product feeding channel temperature control method
A temperature control method and the technology of the feeding channel, which are applied in the direction of the feeding tank, etc., can solve the problems of temperature detection hysteresis and other problems
Active Publication Date: 2021-09-14
SHANDONG SANJIN GLASS MASCH CO LTD
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[0003] The technical problem to be solved by the present invention is: to overcome the deficiencies of the prior art, to provide a precise control, and to solve the problem of hysteresis in temperature detection, which can precisely control the temperature in the supply channel of glass products. Control Method
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[0021] figure 1 It is the best embodiment of the present invention, below in conjunction with attached figure 1 The present invention will be further described.
[0022] A method for controlling the temperature of a glass product supply channel. The material supply channel is connected to a mixed gas pipeline 5, and a valve is arranged on the mixed gas pipeline 5. A proportional motor 7 is connected to the valve to open or close the valve; the control method is as follows: The controller sends a pulse signal to the proportional motor 7 and calculates the theoretical position of the valve plate of the valve. The controller adjusts the duty cycle of the pulse signal according to the deviation between the actual position of the valve plate fed back by the proportional motor 7 and the theoretical position. The larger the value, the larger the duty cycle of the pulse signal. The temperature control method of the glass product feeding channel controls the opening speed of the valv...
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A method for controlling the temperature of a glass product feeding channel belongs to the technical field of glass machinery. Step 1) The controller calculates the theoretical value of the angle that the proportional motor (7) needs to turn according to the temperature signal of the heating zone (2) detected by the thermocouple, and sends a pulse signal to the proportional motor (7) according to the theoretical value; step 2) The proportional motor (7) feeds back the feedback value of the actual turning angle to the controller; Step 3) The controller controls the speed of the proportional motor (7) according to the deviation between the feedback value and the theoretical value to adjust the valve plate of the valve The speed of opening and closing. The temperature control method of the glass product feeding channel controls the opening speed of the valve plate through a proportional motor to control the delivery speed of the gas mixture, and controls the temperature of the feeding channel through the flame, so that the detection is more accurate and there is no hysteresis. The detection is more accurate and sensitive, so that the temperature of the molten glass in the feeding channel can be precisely controlled.
Description
technical field [0001] A method for controlling the temperature of a glass product feeding channel belongs to the technical field of glass machinery. Background technique [0002] At present, the demand for high-grade glass products in the international and domestic markets continues to increase, so the requirements for the temperature control accuracy of the glass product supply channel are getting higher and higher. In the prior art, the heating form of most domestic forehearths is gas heating, specifically: use a fan to blow the mixture of air and gas into the forehearth, ignite the gas to heat the glass raw materials in the forehearth The cooling air is blown into the feeding channel by the fan to cool the feeding channel, the temperature in the feeding channel is detected by the temperature sensor, and the closed-loop control is formed by the controller to adjust the temperature in the feeding channel in real time. However, due to the hysteresis of the temperature sens...
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IPC IPC(8): C03B7/06
CPCC03B7/06
Inventor 赵荣旺
Owner SHANDONG SANJIN GLASS MASCH CO LTD