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Automatic control method for extraction amount of cover plate glass

A cover glass and controller technology, which is applied in program control, comprehensive factory control, comprehensive factory control, etc., can solve the problems of large fluctuation range of lead-out quantity, achieve the effects of reducing fluctuation range, eliminating quality fluctuation, and improving consistency

Pending Publication Date: 2021-07-16
IRICO
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the shortcoming of the large fluctuation range of the lead-out amount, and provide an automatic control method for the lead-out amount of the substrate glass

Method used

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  • Automatic control method for extraction amount of cover plate glass
  • Automatic control method for extraction amount of cover plate glass

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0077] Step 1, according to the actual production experience, set the execution period t of the control module CM in the DCS system 0 And the target value of the effective data quantity taken by the lead-out data group is a valid data group is N, the target value of the invalid data quantity is M when the lead-out data group is an invalid data group, and the target value of the number of continuous invalid data groups of the lead-out automatic control is L ;

[0078] Define the target value of the measurement time interval counting of two continuous glass plates in the latter process as T; the measurement time interval counter is t, the valid data counter is yc, the invalid data counter is wc, the invalid data group counter is wsc, and the plate weight bz, traction roll Linear speed xsd, lead-out amount ycl, effective data average value ycla of lead-out data group are added as standard historical data collection items, and data records are carried out; the upper and lower limi...

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Abstract

The invention discloses an automatic control method for the extraction amount of cover plate glass and belongs to the field of automatic control. According to the method, a mathematical model is established through collected information such as the plate weight, the traction rolling line speed and the plate length, program configuration is carried out by utilizing a DCS lower design configuration tool based on the mathematical model, and control parameters can be adjusted online in real time at an upper computer operation station through an upper design flow chart picture and link corresponding data items; the method comprise an invalid data quantity target value M, a valid data quantity target value N, a continuous invalid data group quantity target value L, an activeness parameter ki or delta i of each temperature control loop, export quantity PID controller parameter ratio integral time, the differential time and the like. According to the method, automatic control of the lead-out quantity is realized, quality fluctuation caused by human subjective factors is eliminated, corresponding parameters are standardized through process exploration, the fluctuation range of the lead-out quantity is reduced, and consistency of product quality is improved.

Description

technical field [0001] The invention belongs to the field of automatic control, in particular to an automatic control method for the lead-out amount of cover glass. Background technique [0002] Distributed control system, referred to as DCS, is a new generation of instrument control system based on microprocessors, adopting the design principles of decentralized control functions, centralized display operations, and taking into account the design principles of division and autonomy and comprehensive coordination. The function of real-time control of the lead-out quantity is generally to send the 4-20 mA board weight signal and the traction roller speed generated by the intelligent instrument measurement to the DCS system. In the DCS function configuration stage, a corresponding model is established inside the DCS system, and the basis is not fixed. The discontinuous feedback value of the average value of the effective data group of the amount of extraction at time intervals...

Claims

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Application Information

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IPC IPC(8): G05B19/418
CPCG05B19/41845G05B2219/33273Y02P90/02
Inventor 李新吴嘉宜张纪魁王小军邢波
Owner IRICO
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