2022/11/03
Hydraulic principle of vacuum press
The hydraulic system of the vacuum press adopts low pressure large flow pump and high pressure small flow pump for oil supply, and the high and low pressure pumps are driven separately. Press the close pressurization button to start the high and low pressure pumps at the same time, energize electromagnet 1YV, and the solenoid valve reverses. The low-pressure pump passes through the check valve 6, and the high-pressure oil enters the oil cylinder through the solenoid reversing valve 10 and check valve 11. The worktable of the vacuum press starts to rise. When the hot pressing plate of the press is closed, the motor of the low-pressure pump stops when the upper limit of the set pressure of the electric contact table 7 of the oil cylinder pressure rise and stop is reached. The high-pressure pump continues to supply oil to the cylinder. When the upper limit of the set pressure of the electric contact pressure gauge 8 is raised and stopped, the high-pressure pump stops. 1YV loses power. The vacuum crimping machine enters the stage of automatic pressure maintaining timing. In the next stage, if the pressure drops to the lower limit of contact pressure gauge 8, the high-pressure pump starts, electromagnet 2YV is powered on, and the solenoid valve reverses. The pressure oil enters the hydraulic check valve through the electromagnetic reversing valve. Open the hydraulic check valve, so that the vacuum compressor stops when the pressure relief return reaches the lower limit switch, and the vacuum compressor completes a working cycle. Overflow valve 5 is used to adjust the pressure of low-pressure pump, and the maximum adjusted pressure is not more than
2022/11/03
System Operation of Vacuum Laminator
A、 Electrical system operation of vacuum laminator 1. Close the 3QF, 1QF and 2QF circuit breakers, and the 1HL power light is on. 2. Close 1K, and 0KM is powered on to prepare for the motor.
2022/11/03
Correct use of non stick cloth for the laminator
1. Normal use of glass cloth In the sales of the laminating machine, the manufacturer always places two pieces of non stick cloth in in the laminating machine。It is to remind the manufacturer of the importance of non stick cloth in production. The function of the non stick cloth is to isolate the melted EVA and stick it to the rubber plate of the upper chamber and the heating plate of the laminator. Once EVA sticks to the rubber plate and heating plate, it will be difficult to remove it.
2022/11/23
PCB World's First Fully Automatic Liquid Metal Printer
The crisscross and extremely complex circuit diagrams such as The Picture of the River on the Qingming Festival, the Great Wall, and the U.S. Capitol are presented on transparent films. It is hard to imagine that a circuit diagram can be so artistic. Have you ever thought of making a personalized computer, a music greeting card or a special circuit board by yourself? Not long ago, the world's first fully automatic liquid metal personal electronic circuit printer developed by the Institute of Physical and Chemical Technology of the Chinese Academy of Sciences may help you realize your dream. Dancing "Spirit"
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