Qingdao Beishun Environmental Protection Technology Co.,Ltd
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5-Layer Electric Heating Jaw Hydraulic Molding Machine Use For Tire Tread Manufacturing
Vulcanizing machine press introduction:
I.Structure and Components
1. Curing Chamber: This is the core part of the 5-layer tread vulcanizer. There are multiple layers of molds for placing the tread in the curing chamber. It is generally made of high-strength metal materials and can withstand the high temperature and high pressure during the vulcanization process. The size of the curing chamber is designed according to the size and number of layers of the tread to ensure that each layer of the tread can complete the vulcanization reaction in a suitable space.
2. Heating system: usually steam, hot plate or electric heating. For steam heating, there is a special steam pipe connected to the heating plate of the vulcanizer, and the heat of the steam is transferred to the mold and tread. Hot plate heating uses internal heating elements, such as resistance wires, to increase the temperature of the hot plate and then transfer the heat to the tread. The electric heating method has the characteristics of fast heating speed and precise temperature control. The temperature is accurately controlled by installing electric thermocouples in the mold or heating plate.
3. Pressure system: including hydraulic system or mechanical pressure system. The hydraulic system transports hydraulic oil to the hydraulic cylinder through a hydraulic pump to generate sufficient pressure on the tread. The mechanical pressure system uses mechanical transmission mechanisms, such as screws, nuts, etc., to convert the rotational motion of the motor into linear motion, thereby applying pressure to the tread. The size of the pressure can be adjusted according to the material and process requirements of the tread, generally between a few MPa and tens of MPa.
4. Control system: This is the key part to ensure the normal operation of the vulcanizer. It can be an automated control system based on PLC (Programmable Logic Controller) or a simple electrical control system. The control system can accurately control parameters such as vulcanization time, temperature and pressure. The operator can enter parameters through the control panel, such as vulcanization time can be accurate to seconds, temperature can be accurate to degrees Celsius, and pressure can be accurate to MPa. During the vulcanization process, the control system monitors these parameters in real time and adjusts them according to the set values.
II. Working principle
First, the unvulcanized tread is placed in the multi-layer mold of the vulcanizer. When the vulcanizer is started, the heating system starts to work, raising the temperature in the vulcanization chamber to the temperature required for tread vulcanization, which is generally between 140-180℃, depending on the formula of the tread rubber. At the same time, the pressure system also starts to apply pressure, which will act evenly on each layer of the tread mold, usually in the range of 2-10MPa.
Under the appropriate temperature and pressure, the rubber molecules in the tread react chemically with the vulcanizer, a process called vulcanization. The vulcanization process cross-links the molecular chains of the rubber, thereby changing the physical and chemical properties of the rubber, such as improving the hardness, wear resistance and elasticity of the rubber. The vulcanization time varies depending on factors such as the thickness of the tread and the rubber formula, and generally takes a few minutes to tens of minutes. For example, for thicker treads and rubber formulas containing special additives, the vulcanization time may be longer.
After the vulcanization is completed, the pressure system and the heating system will gradually stop working, the temperature of the vulcanization chamber will decrease, and the pressure will be released. Then the vulcanized treads can be taken out, and these treads can be used for tire production or assembly of other rubber products.
III.Application advantages
1. Improve production efficiency: The 5-layer tread vulcanizer can vulcanize 5 layers of tread at the same time, which greatly improves production efficiency compared to the single-layer vulcanizer. In industries that require a large amount of treads, such as tire manufacturing, it is possible to quickly provide vulcanized treads to meet the needs of the production line.
Ensure product quality consistency: Since multiple layers of treads are vulcanized simultaneously in the same vulcanizer, under the same temperature, pressure, time and other parameter control, the quality of each layer of tread can be guaranteed to be relatively consistent. In this way, in subsequent processes such as tire assembly, product quality problems caused by differences in tread quality can be reduced.
2. Save space and energy: Compared with the use of multiple single-layer vulcanizers, the 5-layer tread vulcanizer occupies less space. Moreover, during the heating process, since the overall structure of the vulcanization chamber is relatively compact and the heat loss is relatively small, energy can be saved to a certain extent.
Technical Parameters:
| Model | XLB-3600x400x5/6.00MN |
| Type Of Press | Framework structure |
| Nominal Clamping Force | 6.00MN |
| Total Force | 600 Tons |
| Working Table Size | 3600x400mm |
| Working Layers | 5 |
| Cylinder Diameter | Ф280mm |
| Cylinder No. | 6 |
| Heating Medium | Electric heating |
| Max Working Temperature | 200℃ |
| Industrial Voltage | 3 Phases, 380V, 50 HZ |
| Control System | SIEMENS PLC and touch screen |
| Color Of Machine | Blue or customize |
| Automatic Pull Out Panel | Have |
| Weight | About 34ton |
