Packaging machine communication control system and control method thereof

Abstract

The invention discloses a packaging machine communication control circuit and system. A central PLC, a frequency converter and an HMI are included; a relay unit, a sound and light alarming unit and amulti-stage sensing network system are further included; the central PLC is in interconnection with the frequency converter through a first cable and communication data are exchanged; and the centralPLC is in interconnection with the HMI through a second cable and communication data are exchanged. The packaging machine communication control circuit and system solves the problems that running parameters of a traditional relay contact bag tea packaging device are not visual, and parameters of a frequency converter need to be adjusted and input manually one by one; the central PLC, the frequencyconverter and the HMI are adopted for coordinated control, and the central PLC, the frequency converter and the HMI are network synchronous communication control; and the running parameters of the device are visual, the parameters of the frequency converter are fast written in and read through the HMI, fast adjusting is performed, and a whole machine is more intelligent.

Description

technical field [0001] The invention belongs to the technical field of optical-mechanical-electrical integration and industrial electric automatic control, and relates to a communication control circuit and control system of a central PLC, a frequency converter, and an HMI, and specifically relates to communication control of a packaging machine for plant granules, powder, and teabags system and its control method. Background technique [0002] Fully automatic tea bag packaging machine is a special precision packaging machinery equipment for high-quality and efficient tea bag production. Bag sealing and other functions and processes. The traditional teabag packaging machine is controlled by a relay contact system. The inverter parameters must be manually input on the inverter panel. If you want to change the frequency and other parameters, you need to open the cabinet door, which is very inconvenient; because there is no HMI, the equipment runs The parameters are not visib...

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Problems solved by technology

[0003] In view of this, in order to solve the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a packaging machine communication control circuit and control system to solve the problem that the operating parameters of traditional relay contact teabag packaging equipment are not visible, and the frequency converter parameters need to be manually adjusted one by one. For input problems, the central PLC, frequency converter, and HMI are used for coordinated control, and the central PLC, frequency converter, and HMI network are synchronously controlled by communication, so that the operating parameters of the equipment can be visualized, and the frequency converter parameters can be quickly written and read through the HMI, and quickly adjusted. more intelligent

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