An Automatic Rubber Vulcanizing Machine usually consists of the following parts:
- Heating System: It commonly uses electric heating, steam heating, or thermal oil heating. Electric heating systems use heating wires in heating plates to generate heat, offering precise temperature control and a wide temperature range, typically from 0°C to 300°C. Steam heating systems utilize steam as the heat source, providing high heat transfer efficiency and uniform temperature distribution. Thermal oil heating systems have good temperature stability and can maintain a constant temperature for a long time.
- Pressurization System: Generally, it is a hydraulic system composed of high-strength hydraulic cylinders and pumps. The hydraulic cylinders apply pressure to the upper and lower vulcanization plates or molds, with pressures typically ranging from 0.8 MPa to 1.5 MPa. The pressure can be precisely adjusted according to the thickness and material of the rubber products.
- Control System: Usually based on a Programmable Logic Controller (PLC) or a microcomputer control system. It allows operators to set process parameters such as temperature, pressure, and vulcanization time through a touch screen interface. The system can monitor and record real-time data, has an over-temperature and over-pressure alarm function, and can control the entire vulcanization process with high accuracy, typically achieving a temperature control accuracy of ±0.1°C to ±2°C.
- Mechanical Structure: Comprises a frame, pillars, and platens, made of high-strength materials like carbon steel to ensure stability and reliability. The frame supports the entire machine, and the pillars guide the movement of the platens. The platens come into contact with the rubber materials and transfer heat and pressure.
During operation, the machine first loads the rubber materials into the mold or between the platens. Then, the heating system raises the temperature to the set value, and the pressurization system applies appropriate pressure. Under the combined action of heat and pressure, the rubber molecules cross-link and form a stable three-dimensional network structure. After the set vulcanization time, the machine cools down and ejects the finished products.
