MÁQUINA DE VULCANIZAÇÃO PNEUMÁTICA AUTOMÁTICA

AUTOMATIC PNEUMATIC VULCANIZATION MACHINE

AUTOMATIC PNEUMATIC VULCANIZATION MACHINE

SYNOPSIS

Pneumatic technology has gained enormous importance in the field of workplace rationalization and automation, from ancient woodworks and coal mines to modern machine shops and space robots. Therefore, it is important that technicians and engineers have a good knowledge of pneumatic systems, pneumatic valves and accessories. The air is compressed in an air compressor and from the compressor plant the flow medium is transmitted to the pneumatic cylinder through a well-placed piping system. To maintain optimal efficiency of the pneumatic system, it is vitally important that the pressure drop between the generation and consumption of compressed air is kept very low.

The objective is to design and develop a control system based on an electronically controlled automotive pneumatic vulcanizing machine.” In our project, it consists of a heat sensor circuit, solenoid valve and pneumatic cylinder. The heat sensor is used to detect the temperature of the heating coil. In our design, the temperature of the heat sensor is varied by adjusting the variable braking system.

What is vulcanization?

Vulcanization, chemical process by which the physical properties of natural or synthetic rubber are improved; The finished rubber has greater tensile strength and resistance to swelling and abrasion, and is elastic over a wider range of temperatures. In its simplest form, vulcanization is carried out by heating the rubber with sulfur.

There are several methods for vulcanization. The most economically important method (tire vulcanization) uses high pressure and temperature after adding the dressing to the rubber. A typical vulcanization temperature for a passenger tire is 10 minutes at 170°C. This process employs the technique known as compression molding, where the rubber article is intended to adopt the shape of the mold. Other methods, for example for making car door profiles, use hot air vulcanization or microwave-heated vulcanization (both continuous processes).

Vulcanized materials are less sticky and have superior mechanical properties. The term vulcanized fiber refers to cellulose that has been treated in a zinc chloride solution to cross-link the cellulose fibers.

automatic pneumatic valcanizing machine automatic pneumatic valcanizing machine

WORK OPERATION

The important components of our project are,

  • Heat sensor
  • Control unit with power supply
  • Solenoid valve
  • Flow control valve
  • Compressor
The heating coil receives power from the 230 Vac source. The temperature of the heating coil is changed by adjusting the temperature value of the variable resistor. Thus, the coil is heated to a specific temperature.

The tube is fixed to the base of the L-bracket. The heating coil is fixed below the base of the L-bracket. The vulcanization tube side is kept above the heating coil. The tube is heated to a specific temperature. The control unit supplies power to the solenoid valve so that the pneumatic cylinder is in forward stroke. After reaching the set temperature value, the power supply to the solenoid valve is automatically cut off by the sensor unit. The ram is released to the previous position after the vulcanization process is complete. This machine is compact in size and semi-automatic. Time consumption during operation is much less when compared to manual operation.

FORMS

  • Tires for automotive applications
  • Shoe soles, hoses and conveyor belts are made from vulcanized rubber.

    • BENEFITS

  • Compact and portable size
  • Easy to move from one place to another
  • The working principle is simple.
  • Unqualified person also operates this machine
  • The conception time is very less when compared to manual machine
  • The temperature of the heating coil varies.
  • Automatic thermostat is used to maintain specific temperature
  • The force required to operate this system is low.

    • DISADVANTAGES

  • It may be the choice of air leakage problems
  • We need compressed air
  • It could be the chance of the tube overheating.

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