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Temperature control system for quenching furnace

A temperature control system and quenching furnace technology, applied in quenching devices, furnace control devices, furnaces, etc., can solve the problems of restricting, affecting the precise control of furnace body temperature, poor PLC display function, etc., and achieving low cost, low price, data, etc. Line-less effect

Inactive Publication Date: 2013-04-17
盐城市大丰区永威机械厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The temperature control system of the traditional quenching furnace uses a programmable logic controller (PLC), but the display function of the PLC is poor, which restricts and affects the precise control of the temperature of the furnace body

Method used

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  • Temperature control system for quenching furnace

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Embodiment Construction

[0013] Such as figure 1 As shown, the temperature control system of the quenching furnace includes a PLC controller 1, a temperature sensor 2 and a power regulating cabinet 3. The temperature sensor 2 transmits the temperature data information in the furnace to the PLC controller 1, and the PLC controller 1 controls the power regulating cabinet. The solid-state relay trigger signal in the power cabinet 3 controls the on-off of a plurality of electric heating elements 5 in the furnace body 4 through PWM mode, and it is characterized in that: the PLC controller 1 is also connected with a touch screen 6 and an industrial computer 7, so The touch screen 6 is connected with the industrial computer 7 through the RS-232 interface, and is also connected with the PLC controller 1 through the RS-485 interface. The RS-232 interface is the most widely used serial standard interface in the current communication industry. It adopts single-ended transmission mode. The total load capacitance...

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Abstract

The invention discloses a temperature control system for a quenching furnace. The temperature control system comprises a PLC controller, a temperature sensor and a powder adjustable cabinet, wherein the temperature sensor sends temperature data in the furnace to the PLC controller; and the PLC controller controls a solid state relay in the powder adjustable cabinet to trigger signals and controls on and off of a plurality of electric heating elements in the furnace body in a PWM mode. The temperature control system is characterized in that the PLC controller is also connected with a touch screen and an industrial computer, wherein the touch screen is connected with the industrial computer through an RS-232 interface and is connected with the PLC controller through an RS-485 interface. Due to the adoption of the above structure, accurate control of the temperature is realized by fully utilizing a strong man-machine interface function of the PC machine and the touch screen. Besides, the communication mode needs few data lines and is low in cost. The touch screen realizes parameter set of a quenching process, so that normal work can be guaranteed, and precision of the temperature control is increased.

Description

technical field [0001] The invention relates to a temperature control system of a quenching furnace. Background technique [0002] In recent years, mechatronics technology has developed rapidly. Due to the characteristics of compact design, good scalability, low price and powerful instructions, programmable logic controller (PLC) has a strong advantage in switching value control. The application in industrial production is more and more extensive. The temperature control system of the traditional quenching furnace uses a programmable logic controller (PLC), but the display function of the PLC is poor, which restricts and affects the precise control of the temperature of the furnace body. Contents of the invention [0003] In order to overcome the above disadvantages, the object of the present invention is to provide a temperature control system for a quenching furnace that can improve the temperature control accuracy. [0004] In order to achieve the above object, the pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D11/00C21D1/62F27D19/00
Inventor 沈永毅
Owner 盐城市大丰区永威机械厂