Application of PLC in capsule curing machine

In the tire curing process, the capsule as the necessary parts of the tire processing, there is a high performance requirements. It needs to undergo repeated expansion and contraction, stretching and other deformation, but also experienced a sharp rise and cooling. Capsule curing is one of the key processes to obtain high quality performance, and it is also one of the most important processes in capsule production. The process is to first make the rubber material through the appropriate processing of semi-finished products, and then through the chemical effect, the semi-finished products made capsule shape, to meet the performance of the use of tire processing.

Capsule curing process includes mold, mold, mold, mold, and so on. Capsule vulcanizing machine controlled by the movements of the core rod, the core rod and the main oil cylinder, combined into the core mold cavity the formation of capsule vulcanizing pressure required, at the same time through the access control to control the steam curing temperature required. Most capsule curing machine adopts hydraulic system. The hydraulic pressure station controls the upper die, the lower die and the main oil cylinder by the oil pipeline.

With HOLLiAS LM series PLC analog acquisition of high precision, good ductility, network characteristics, and put forward a set of small PLC based on Hollysys capsule vulcanizing machine control system solutions. This scheme overcomes the traditional relay of capsule in curing pressure, temperature and time of the three elements of the control is not precise, high failure rate shortcomings, has a certain reference value for the application of PLC in industry capsule vulcanizing machine.

According to the input and output point requirements, select the 40 point CPU module LM3109 and 4 channel analog input module LM3310. The switching input of the control system mainly includes the operation mode switching button, the setting button and the action button. The analog input of the system includes a temperature transmitter signal input and a pressure transmitter signal input. The output of the system includes a motor, an electromagnetic valve, an indicator light, etc.. Touch screen for input parameters, while monitoring the current state of operation and time. Computer as a remote monitoring equipment, can be connected with the PLC, used to save and monitor the running state of the capsule curing machine. The control system of the capsule curing machine mainly realizes the accurate control of pressure, temperature and time in each stage of curing, the fault detection and alarm, the parameter record and communication.

The HOLLiAS LM series PLC designed a capsule vulcanizing machine temperature and pressure control system has high control precision, network interface and features rich, achieve a capsule vulcanizing machine, automation control and network management, greatly improving the capsule production efficiency and product quality, to meet the high quality, high efficiency, low failure rate etc..