GFD563A101控制模塊,3BHE046836R0101處理器卡件系統(tǒng)優(yōu)勢(shì) 顯影溫度顯示精度0.1度；控制精度0.5度；主馬達(dá)采用無極調(diào)速;顯影時(shí)間精確到1秒 需要專業(yè)工程師開發(fā)程序和調(diào)試才能同等達(dá)到效果一體化，集成度、可靠性、性價(jià)比高；接線端子可拔插、維護(hù)方便，系統(tǒng)并配送高精度熱敏電阻。PLC功能
16路繼電器輸出;16路數(shù)字量輸入;6路模擬量輸入（含3路溫度）6路模擬量輸出
GFD563A101控制模塊,3BHE046836R0101處理器卡件控制系統(tǒng)成熟穩(wěn)定可靠，在行業(yè)中已有數(shù)十家客戶，數(shù)年的經(jīng)驗(yàn)積累，PLC原程序開放給廠家維護(hù)。雙工位印刷涂布機(jī)主要用于BOPP、PVC、PET紙等材料制作膠帶、反光膜、保護(hù)膜及涂色、涂藥水之用，分A型機(jī)主要用于涂布BOP P、PVC、PET及紙張，受熱后不會(huì)延伸的材料，和B型機(jī)用于PE等受熱后會(huì)延伸的材料。雙工位印刷機(jī)采用臺(tái)達(dá)變頻調(diào)速器控制速度，臺(tái)達(dá)PLC系統(tǒng)進(jìn)行自動(dòng)張力控制技術(shù)，采用綱線輥涂布或三輥逆轉(zhuǎn)計(jì)量刮刀涂布等方式，上膠均勻，上膠量可調(diào)，采用電加熱或蒸氣加熱干燥方式。雙工位印刷涂布機(jī)的機(jī)械結(jié)構(gòu)可以分為雙工位放卷部分、印刷涂布及烘干部分、收卷部分等；傳動(dòng)點(diǎn)主要有放卷A軸、放卷B軸、放卷牽引、印刷涂布軸、鏈輪傳動(dòng)軸、主牽引電機(jī)、收卷軸等。
雙工位印刷涂布機(jī)的工作原理是，安裝好欲加工紙張或PE膜在放卷軸A或B軸上，再預(yù)張緊放卷、收卷輥后壓上靠錕，同時(shí)按走紙方向傳遞紙張啟動(dòng)主電機(jī)，使版輥與壓輥壓合，并調(diào)整至合適的張力即可開機(jī)；調(diào)節(jié)調(diào)偏輥的位置可以調(diào)節(jié)紙張的平整度；調(diào)節(jié)擺桿汽缸氣壓可以控制紙張或PE膜等加工品的張力，放卷軸通過張力擺桿調(diào)節(jié)膜的速度平穩(wěn)，及放卷牽引和涂布印刷及收卷軸等都通過擺桿反饋調(diào)節(jié)傳動(dòng)點(diǎn)速度平穩(wěn)運(yùn)行，從而達(dá)到良好的印刷質(zhì)量和效果。雙工位印刷涂布機(jī)的控制工藝主要在于多軸傳動(dòng)的速度同步及收、放卷、牽引、印刷涂布等的張力恒定，以及放卷過程中的卷徑計(jì)算，和雙工位放卷A、B軸切換等工藝要求。收放卷張力控制非常關(guān)鍵，收卷張力應(yīng)合適，張力太小，紙張收卷時(shí)會(huì)松弛；張力太大，收卷時(shí)材料易起皺。本例中通過放卷張力擺桿對(duì)擺桿角度進(jìn)行反饋，從而PID調(diào)節(jié)放卷速度來達(dá)到張力大小恒定和速度平穩(wěn)要求；另外，由于放卷時(shí)卷軸的直徑不斷變小，如果放卷軸的轉(zhuǎn)速保持恒定，則卷軸的放卷線速度會(huì)越來越小，這樣容易出現(xiàn)拉斷PE膜的問題。
distributionWith the continuous development of mine monitoring technology, more and more monitoring systems are installed in underground and ground production places, which plays an important role in mine safety production. A large amount of information of each system needs to be transmitted to each dispatching department of the mine, and a transmission platform with high reliability, high bandwidth and high rate should be built; Realize the same network transmission of data, voice and video, that is, the transmission platform of "three networks in one"; Build a transmission platform covering the whole mine. According to the needs of practical application and future maintenance and upgrading, a Gigabit Industrial Ethernet ring network composed of hesman ring network switch is designed.
2. Industrial Ethernet ring scheme
The underground environment of coal mine is bad, the anti-interference performance of optical cable is better than that of cable, and all the backbone transmission media of industrial Ethernet ring network use optical cable. Ring network redundancy realizes network redundancy by establishing a ring topology to ensure that the communication is still normal in case of single point of failure.
Due to the limitation of special underground environmental conditions, it is very difficult to really
