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Weighing sensor overload protection method and system

A weighing sensor and overload protection technology, which is applied to the detailed information of weighing equipment, instruments, weighing, etc., can solve the problems of sensor damage, sensor breakage, casting billet jamming, etc., and achieve easy implementation, remarkable effect, and systematic The effect of rigorous operation

Inactive Publication Date: 2020-05-19
CONTINUOUS CASTING TECH ENG OF CHINA
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0003] However, in the process of lifting and weighing the slab, the lifted slab may be stuck by the roller frame and the outside during the lifting process, or the lifting force provided by the lifting cylinder may exceed The permissible value of sensor safety (ie, overload value), the sensor is damaged, and in serious cases, the sensor breaks and causes an accident

Method used

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  • Weighing sensor overload protection method and system
  • Weighing sensor overload protection method and system
  • Weighing sensor overload protection method and system

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Embodiment Construction

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention:

[0032] figure 2 Schematically shows the structure of the load cell overload protection system. Such as figure 2 As shown, a load cell overload protection system provided by the present invention includes: a control unit 10 , a weighing unit 20 , a pressure measurement unit 30 , a monitoring and acquisition unit 40 , a calculation unit 50 , and a judgment unit 60 .

[0033] In the present invention, the control unit 10 adopts a PLC controller for automatic control, and is used to control the start and stop of casting slab weighing, and / or realize the functions of the monitoring and collecting unit 40 , the calculating unit 50 and the judging unit 60 . PLC controller (Programmable Logic Controller, Programmable Logic Controller) is used for control, flexible a...

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Abstract

The invention discloses a weighing sensor overload protection method and system. The method comprises steps of monitoring and acquiring weighing data outputted by a weighing sensor in real time; monitoring and collecting the pressure of an upper cavity and the pressure of a lower cavity in real time according to pressure sensors arranged on a hydraulic cylinder, and calculating the lifting force generated by the hydraulic cylinder; judging whether weighing data reach an overload value of the weighing sensor or not, judging whether the lifting force reaches an overload value of the weighing sensor or not, stopping weighing if the weighing data and / or the lifting force reach / exceeds the overload value, and continuing weighing if the weighing data and the lifting force do not reach the overload value. The method is advantaged in that problems of overload, damage or failure of the weighing sensor in use can be avoided, and the method has advantages of safety, reliability and easiness in implementation.

Description

technical field [0001] The invention relates to the technical field of billet weighing, in particular to a load cell overload protection method and system. Background technique [0002] With the deepening of cost reduction and efficiency increase in the iron and steel industry, in order to increase the rolling yield and reduce waste, the steel rolling bar factory puts forward the requirement of fixed weight billet supply for the billets provided by continuous casting. For this reason, many steel mills have adopted the method of adding hydraulic lifting billet weighing devices on the roller table, that is, lifting the billet on the roller table through the lifting hydraulic cylinder, and the pull-type weighing sensor automatically measures the weight of the billet to realize fixed-weight billet supply. , to meet the requirements of the bar factory in the next process. [0003] However, in the process of lifting and weighing the slab, the lifted slab may be stuck by the rolle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01G23/00
CPCG01G23/005
Inventor 袁己百殷攀郭利娟周干水
Owner CONTINUOUS CASTING TECH ENG OF CHINA
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