Online SPC analysis system and method for metering process capability of gravimetric filling equipment

A technology of filling equipment and process capability, which is applied in the field of automatic collection and analysis, can solve the problems of controllable increase of the overall state of the system, difficulty in distinguishing the measurement status of the filling head, and difficulty in measurement accuracy, so as to reduce the risk of the measurement process and eliminate The risk of weighting the average value and the effect of ensuring real-time performance

Inactive Publication Date: 2014-05-14
CHINA PETROLEUM & CHEM CORP
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Problems solved by technology

[0010] Moreover, for multi-head packaging equipment, it is difficult to distinguish the metering situation of each filling head, so as to analyze and adjust separately, which increases the difficulty of controlling the overall state of the system and also makes it difficult to improve the metering accuracy.

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  • Online SPC analysis system and method for metering process capability of gravimetric filling equipment
  • Online SPC analysis system and method for metering process capability of gravimetric filling equipment
  • Online SPC analysis system and method for metering process capability of gravimetric filling equipment

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Embodiment Construction

[0022] The invention provides an online SPC analysis system for measuring process capability of weighing filling equipment, its structure is as follows figure 2 shown. The system includes a data acquisition card for collecting the data of the weighing filling equipment, a database for storing the data, and a data analysis and analysis unit for analyzing the data.

[0023] Wherein, the data acquisition card is connected with the weighing filling equipment to be analyzed, specifically, with the measuring instrument of each filling unit (such as filling head) of the weighing filling equipment. The connection mode between the data acquisition card and the measuring instrument can be serial port (RS232), parallel port (RS485), infrared, Bluetooth, network port, GSM, GPRS, 3G, etc., depending on the communication port and hardware structure of the measuring instrument. During the continuous operation of the weighing filling equipment, the data acquisition card collects the tare we...

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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.

Description

technical field [0001] The invention relates to the technical field of automatic collection and analysis, and more specifically 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 PLC 6 (programmable logic controller). A corresponding packaging container 5 is placed on the upper platform of the bracket assembly of the load cell 1, and the fil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65B57/10B65B57/18
Inventor 赵江付晓先张连英魏堃胡建男王东晖郑光王占甫张广实
Owner CHINA PETROLEUM & CHEM CORP
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