A safety control system and laser equipment
A technology of safety control and safety signal, which is applied in the direction of control/adjustment system, instrument, and electric variable adjustment, etc. It can solve problems such as unstable supply, long delivery cycle, and high cost of safety relay U1, and achieve cost reduction and improvement reliability effect
Active Publication Date: 2019-03-01
UNITED WINNERS LASER CO LTD
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Problems solved by technology
[0003] The existing safety circuit system has the following disadvantages: 1. The safety relay U1 is expensive, currently imported from Europe, America and Japan, with long lead times and unstable supply
2. There are few safety detection input points and safety output points, which can only meet the application of primary safety circuits
Method used
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[0027] The following examples are further explanations and supplements to the present invention, and will not constitute any limitation to the present invention.
[0028] refer to figure 2 , a safety control system of the present invention includes a safety signal input unit U1, a safety signal input isolation unit U2, a safety signal processing unit U3 and a safety output isolation unit U4; the safety signal input unit U1 generates and outputs a safety signal; the safety signal input isolation unit The signal input end of U2 is connected with the signal output end of described safety signal input unit U1; The signal input end of safety signal processing unit U3 is connected with the signal output end of described safety signal input isolation unit U2, and described safety signal processing unit U3 Including a digital gate safety circuit U31 and a single-chip microcomputer safety circuit U32, the digital gate safety circuit U31 and the single-chip microcomputer circuit respec...
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The invention provides a safety control system and a laser device. The safety control system comprises a safety signal input unit, a safety signal input isolation unit, a safety signal processing unit and a safety output isolation unit, wherein the safety signal input unit is used for generating and outputting a safety signal; a signal input end of the safety signal input isolation unit is connected with a signal output end of the safety signal input unit; the signal input end of the safety signal processing unit is connected with the signal output end of the safety signal input isolation unit; the safety signal processing unit comprises a digital door safety circuit and a single chip microcomputer safety circuit; the digital door safety circuit and the single chip microcomputer safety circuit are used for processing the safety signal separately and transmitting the obtained signal to the safety output isolation unit; and the signal input end of the safety output isolation unit is connected with the signal output end of the safety signal processing unit and the signal output end is connected with a master control AC contactor. According to the safety control system and the laser device, the circuit cost can be reduced and the reliability of the circuit can be improved.
Description
【Technical field】 [0001] The invention relates to the technical field of laser equipment, in particular to a safety control system for laser equipment. 【Background technique】 [0002] Such as figure 1 As shown, in laser equipment, the finished safety relay and emergency stop switch are generally used to form the safety circuit system of the whole machine. When the laser equipment is working, when an abnormality occurs suddenly, the operator presses the emergency stop button E1, and the safety relay U1 will cut off the power supply to the control coils of the main control AC contactors of KM1 and KM2 in the main circuit, so that KM1 and KM2 are disconnected from the main circuit. In order to protect the safety of operators and laser equipment, U1 also detects in real time whether the contacts of KM1 and KM2 main control AC contactors are stuck, or are stuck by foreign objects and cannot be sucked by the normally closed contacts KM1NC and KM2NC When these abnormalities occur...
Claims
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IPC IPC(8): G05F1/569
CPCG05F1/569
Inventor 黄立刚卢国杰牛增强韩金龙
Owner UNITED WINNERS LASER CO LTD