Four Column Vulcanizing Press Machine

Four column vulcanizing press machine is a machine for vulcanizing various rubber and plastic products, with functions such as timed mold clamping, automatic pressure supplementation, automatic temperature control, automatic timing, and alarm when it arrives. The rubber vulcanizing press machine is divided into three forms: electric heating, steam heating and heat transfer oil heating.

The functions of pre-heating required for the rubber vulcanization process, automatic exhaust after feeding, pressure-holding vulcanization, timing alarm, automatic mold opening, and product mold release are integrated into one. It is generally controlled by PLC, with automatic and manual operation (customized according to the actual needs of users), which can record the required technological process, remote operation and system management.

Preparation process before the operation of the four column vulcanizing press machine:

1. Check the amount of hydraulic oil before use. The height of hydraulic oil is 2/3 of the height of the lower base. When the amount of oil is insufficient, it should be added in time. The oil must be finely filtered before injection. Add pure 20# hydraulic oil into the oil filling hole of the lower machine base, and the oil level can be seen from the oil standard rod, which is generally added to 2/3 of the height of the lower machine base.

2. Check the lubrication between the column shaft and the guide frame and add oil in time to maintain good lubrication.

3. Turn on the power supply, move the operating handle to the vertical position to close the oil return port, press the motor start button, the oil from the oil pump enters the oil cylinder, and drives the plunger to rise. When the hot plate is closed, the oil pump continues to supply oil, When the oil pressure rises to the rated value (14.5MPa), press the registration stop button, so that the machine is in the state of shutdown and pressure maintenance (that is, timing vulcanization). When the vulcanization time is reached, move the handle to lower the plunger to open the mold.

4. Temperature control of the hot plate: put the forming mold on the hot plate, close the rotary button SA1, the plate starts to heat, and when the temperature of the plate reaches the preset vulcanization temperature, the heating will automatically stop. When the temperature is lower than the set value, the plate automatically heats up to keep the temperature at the set value.

5. Control of the action of the four column vulcanizing press machine: press the motor start button SB2, the oil pump works, the mold is closed and pressurized, when the hydraulic pressure reaches the set value for a few seconds, release the pressure 1~2 times to make the air and volatile gas overflow, and then press tightly The mold starts to automatically record the vulcanization time. When the pressure drops, the oil pump motor starts to automatically replenish the pressure, and the set vulcanization time is reached. The buzzer beeps to inform that the vulcanization time has come, and the mold can be opened. Press the buzzer stop button and move the manual valve. , the plate is lowered, and the next cycle can be performed.