On-line spc analysis system and method for measuring process capability of weighing filling equipment

A filling equipment and process capability technology, applied in the field of automatic collection and analysis, can solve the problems of large metering risks, inability to take measures in time, control difficulties, etc., to eliminate the risk of tare average value, reduce the risk of metering process, application promising effect
CN103786933BInactive Publication Date: 2016-05-18CHINA PETROLEUM & CHEM CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEM CORP
Publication Date
2016-05-18
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides an online SPC (Statistical Process Control) analysis system for metering process capability of gravimetric filling equipment. The system comprises a data acquisition card for real-time online acquisition of data, including the tare weight of products and the net weight of the products, of the gravimetric filling equipment, a database for storing the data, and a data analysis unit for reading the data to be analyzed from the database and analyzing the tare weight of products, the net weight of the products, the average tare weight of the products, the average net weight of the products or the capability index of a metering system. The online SPC analysis system for the metering process capability of the gravimetric filling equipment is capable of outputting the results of analysis in real time so that the operating personnel can take intervention measures according to the results, and therefore, stable control of the production process and reduction of risks in the metering process are realized. The invention also provides an online SPC (Statistical Process Control) analysis method for the metering process capability of the gravimetric filling equipment.
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Description

technical field

[0001] The invention relates to the technical field of automatic collection and analysis, and more particularly relates to an online SPC (statistical process control) analysis system for measuring process capability of weighing filling equipment. Background technique

[0002] Weighing filling equipment is widely used in petrochemical, food and beverage, medicine and other technical fields, and is closely related to our life. As a commodity, its net weight is closely related to the interests of our consumers.

[0003] figure 1 It is a structural schematic diagram of a metering system for a weighing filling machine in the prior art. The metering system includes: a load cell 1, a filling head assembly 2, a photoelectric cell 3, a weighing instrument 4, a packaging container 5, and a process control PLC6 (PLC). A corresponding packaging container 5 is placed on the upper platform of the bracket assembly of the load cell 1, and the filling head assembly 2 quanti...

Claims

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