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What are the working principles of flat vulcanizing machines?
Time:2025-12-29
Views:65
The working principle of the flat vulcanizing machine can be clearly and systematically summarized as follows:
1. Start up and hydraulic control
When the electric motor starts running, the oil enters the oil pump from the oil filter in the storage tank and enters the control valve through the oil discharge pipe of the oil pump.
If the manual control valve is in the closed position, the oil will enter the cylinder through the control valve and oil pipe, thereby driving the plunger and lower template platform to rise.
2. Pressure control
When the pressure inside the oil cylinder reaches the preset upper limit specified value (but not exceeding 16.0Mpa), the contact of the electric contact pressure gauge will control the stop of the oil pump motor operation. The one-way valve automatically closes to maintain the pressure inside the oil cylinder and ensure stable pressure during the vulcanization process.
If the pressure drops to the preset low working pressure, the contact of the electric contact pressure gauge will control the operation of the oil pump again, causing the oil pressure to rise.
3. Heating and vulcanization
Flat vulcanizing machines usually use automatic temperature control electric heating tubes for heating.
Rubber and other materials begin to soften during the heating process, while the internal moisture and volatile substances will vaporize.
The hydraulic cylinder provides sufficient pressure to fill the model with rubber material and limit the generation of bubbles, ensuring the tightness of the product‘s organizational structure.
During the vulcanization process, rubber molecules undergo cross-linking reactions, transforming from a linear structure to a mesh like body structure, which fixes their properties and shape.
4. Completion of vulcanization and pick-up of parts
When the vulcanization heating time is completed, the motor stops running.
The operator can open a mold to remove the vulcanized workpiece.
5. Lowering reset
If you need to lower the lower template hot plate, you can open the manual control valve.
The self weight of the lifting platform and plunger will cause the oil in the cylinder to be pressed back to the storage tank through the cylinder manual control valve and oil pipe, thereby achieving the descent of the lower template hot plate.
For more technical support about the rubber hot press equipment, please contact us by email.
For more technical support about the rubber hot press equipment, please contact us by email.
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