Material mark switching monitoring method and system based on bimodal signal detection

Abstract

The present invention provides a material mark switching monitoring method and system based on bimodal signal detection, first relays in one-to-one correspondence with feeding machines are arranged at the inlet end of a mark exchange station, and second relays in one-to-one correspondence with product manufacturing machines are arranged at the outlet end of the mark exchange station; a wire used for connecting the first relay and the second relay in series to form an access is attached to the material pipeline connecting the inlet ends and the outlet ends, and the material pipeline is switched to be connected with the different inlet ends and the outlet ends, so that the first relay and the second relay generate opening and closing state changes. By detecting bimodal signals formed by opening and closing state changes of the first relays and the second relays in the pipeline switching process, connection relation changes, caused by pipeline switching, of the feeding machine and the product manufacturing machine are determined, and therefore real-time monitoring of material mark switching is achieved. By means of the monitoring method and the monitoring system, the switching efficiency and accuracy of the material marks can be improved, and production accidents of wrong marks and mixed marks are avoided.

Description

technical field [0001] The invention relates to the technical field of material pneumatic conveying, in particular to a method and system for monitoring material grade switching based on dual-mode signal detection. Background technique [0002] The material pneumatic conveying system has the advantages of small investment, convenient use and maintenance, environmental protection and energy saving. The proportion of pipeline pneumatic conveying has reached more than 90%. Large-scale production enterprises often have multiple product manufacturing machines or multiple production lines. The production line must have the ability to produce multiple brands of products at the same time. In order to meet the needs of many customers in the market, according to the production tasks issued by the enterprise, the production line or product manufacturing machine It is often necessary to change the grade of the produced product. Since the feeder for supplying materials is often configur...

AI Technical Summary

Problems solved by technology

Large-scale production enterprises often have multiple product manufacturing machines or multiple production lines. The production line must have the ability to produce multiple brands of products at the same time. In order to meet the needs of many customers in the market, according to the production tasks issued by the enterprise, the production line or product manufacturing machine It is often necessary to change the grade of the produced product. Since the feeder for supplying materials is often configured in the form of multiple discharge ports, the front-end material storage cabinet and discharge belt are not easy to adjust. In order to quickly realize brand scheduling on the production line, it is necessary Configure the material grade exchange station on the material conveying pipeline

[0003] Although the product manufacturing machine and the feeding machine can be freely connected by using the grade exchange station to achieve flexible grade switching with the greatest degree of freedom, but at the current stage, the grade switching work mainly depends on manual operations. It is complex and has a large number of pipelines. It is easy to misjudge due to fatigue when manually switching pipelines, resulting in serious production accidents such as wrong cards and mixed cards. Therefore, it is necessary to take effective measures to monitor the status of pipeline switching connections in the exchange station to Avoid wrong branding and mixed branding accidents caused by wrong connection of pipelines

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