A Method of Self-Adaptive Correction of Weighing System Error

Abstract

The invention discloses a self-adaptive weighing system error correction method. The self-adaptive weighing system error correction method comprises the following steps that the weight of a first filled material container is compared with a fixed weight value through a programmable logic controller (PLC), and the result is marked as M; when a second material container is filled, if the value of the prior M is greater than or equal to 0, a quantity control valve and a bottom valve need to be closed under the condition that the filling weight reaches the difference between the fixed weight value and the value of M; if the value of the prior M is smaller than 0, the quantity control valve and the bottom valve need to be closed under the condition that the filling weight reaches the sum of the fixed weight value and the value of M; the steps are executed repeatedly, and the PLC conducts analysis according to data, so that a tailing value needing to be preset finally is obtained; and the tailing value is updated after N material containers are filled. According to the self-adaptive weighing system error correction method, various factors which possibly appear in the production process and affect the precision of a weighing system are analyzed according to the automatic production requirement for fixed-weight packaging, the system is optimally designed on the aspects of hardware and software, the weighing precision and the control precision of the system are improved, and a high-precision and high-reliability weighing platform is obtained.

Description

technical field [0001] The invention relates to a method for automatically compensating tailings of fully automatic chemical filling equipment in the chemical, pharmaceutical and fuel filling industries, in particular to a method for self-adaptive correction of weighing system errors. Background technique [0002] At present, the weighing device is no longer a simple measuring device, but has gradually evolved into an integral part of the industrial control system. For production enterprises, they should try their best to control the net weight of the goods within the allowable error range of the country. If the fixed weight value is set above the deviation, it will increase the production cost and affect the economic benefits of the enterprise; if the fixed weight value is set at Under the deviation, due to the influence of many factors in the production process, the probability of the product exceeding the maximum allowable error will increase, which will affect the social...

AI Technical Summary

Problems solved by technology

The invention provides a method for self-adaptively correcting the error of the weighing system to solve the disadvantages of manual processing when upper and lower mixing deviations occur in the tailing processing of the previous weighing system, and automatic processing when deviations occur

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