【正文】 ontrol software by the labor to plete the systems control and coordinated. This kind simplified the system hardware based on the industry puter39。薄膜經(jīng)過折疊成型后 ,由定長定位牽引裝置進(jìn)行牽引和定位進(jìn)入熱封工序。對于同步精度要求高的場合 ,可以使用轉(zhuǎn)矩綜合反饋形式的控制策略 ,實(shí)現(xiàn)兩軸的耦合。溫度控制主要采用智能程序 /溫度控制器 ,該類控制器具有熱電偶輸入通道和溫度調(diào)節(jié)輸出 通道。各單元的電子軸替代了原先的機(jī)械長軸 ,利用光纖進(jìn)行數(shù)據(jù)傳輸 ,其高精度保證了各印刷單元的嚴(yán)格同步 ,為制袋機(jī)提供一種基于計(jì)算機(jī)控制的一體化解決方案。張力控制器和張力表完全由工控機(jī)取代 ,信號(hào)的轉(zhuǎn)換和輸出可以由 AD 和 DA 板卡完成 ,參數(shù)的設(shè)定、顯示和張力調(diào)整值的計(jì)算則由系統(tǒng)控制軟件來完成。 定長、定位控制要確定制袋過程中袋子的長度、熱封和裁切的位置。 制袋機(jī)的控制系統(tǒng)主要包括 :主驅(qū)動(dòng)電機(jī)伺服控制系統(tǒng)、定長定位控制系統(tǒng)、張力控制系統(tǒng)、溫度控制系統(tǒng)、進(jìn)給控制系統(tǒng)和光電糾偏控制系統(tǒng)。s quality has the material effect to the product quality, when plete machine movement in high speed is especially obvious. The tensity control mainly exists in putting between the material and to feed and two carryover pinch rolls. Is similar corrects an error with the electrooptic to control, at present the tensity control pletes most by the independent tensity control system, mainly includes the tensity controller, the tensity detector, the tensiometer, the coupling and the brake. The pletely automatic tensity control has the tensity detector to e the immediate determinant volume material the tensity, then turns tensity data the tensity signal to feed in the tensity controller, the tensity controller adjusts the coupling or brake39。s pressure, causes high and low two heatseal material each other to fuse together in together, after the cooling, can maintain certain intensity, has leakproof and so on good. The heatseal good bag may according to need to carry on processings and so on punch and margin, finally pletes the dinking die by the dinking die installment, makes the end product bag. Bagmaking machine39。s control system must plete the main servo electrical machinery and the feed bag hauling servo electrical machinery39。s exciting current controls the volume material the tensity. The tensity controller and the tensiometer control machine the substitution pletely by the labor, the signal transformation and the output may plete by AD and the DA board card, the parameter hypothesis, the demonstration and the tensity adjustment value39。目前 ,多數(shù)制袋機(jī)控制系統(tǒng)的主驅(qū)動(dòng)電機(jī)伺服控制系統(tǒng)和定長定位控制系統(tǒng)是一體的 ,即以工控機(jī)為控制核心形成一個(gè)三伺服控制系統(tǒng) ,而張力、光電糾偏、溫度和進(jìn)給控制系統(tǒng)獨(dú)立于這個(gè)三伺服控制系統(tǒng)?？v向定位是指對薄膜進(jìn)行定長牽引的控制 ,使產(chǎn)品有良好的一致性。這樣通過工控機(jī)的軟硬件資源來取代獨(dú)立張力控制系統(tǒng)部分設(shè)備 ,可以簡化系統(tǒng) ,節(jié)約成本。 。有的塑料膜在 5 度溫差下 ,拉伸情況會(huì)發(fā)生很大的變化 ,它的熱封性會(huì)變得很差 ,因此溫度也是一個(gè)重要的環(huán)節(jié)。兩個(gè)伺服電機(jī)要保持同步運(yùn)動(dòng) ,這可以通過運(yùn)動(dòng)控制器來完成同步控 制。 在制袋過程中 ,薄膜卷材連續(xù)展開 ,并通過光電糾偏和進(jìn)給機(jī)構(gòu)源源不斷地進(jìn)入折疊成型裝置中的。s rate of finished products. Some plastic membrane under 5 degrees temperature differences, the stretch situation will have the very big change, its heatseal will bee very bad, therefore the temperature also will be an important link. The temperature control mainly uses the intelligent program/temperature controller, this kind of controller has the thermoelement input channel and the temperature control output channel. Uses the thermoelement to take bagmaking machine39。s fixedlength positioni