Umshini wephepha ohlobo lwe-Fourdrinier wasungulwa indoda engumFulentshi u-Nicholas Louis Robert ngonyaka ka-1799, ngemva nje kokuba indoda eyiNgisi uJoseph Bramah isungule umshini wohlobo lwe-cylinder mold ngonyaka ka-1805, yaqala yahlongoza umqondo kanye nesithombe sephepha lokubunjwa kwe-cylinder elakheka kulungelo lakhe lobunikazi, kodwa ilungelo lobunikazi likaBramah alifezeki. Ngonyaka ka-1807, indoda yaseMelika okuthiwa uCharles Kinsey yaphinde yaphakamisa umqondo wokwakhiwa kwephepha lesikhunta futhi yathola ilungelo lobunikazi, kodwa futhi lo mqondo awusoze waxhashazwa futhi usetshenziswe. Ngonyaka ka-1809, indoda eyiNgisi okuthiwa uJohn Dickinson yahlongoza umklamo womshini wokubumba isilinda futhi yathola ilungelo lobunikazi, ngawo lowo nyaka, umshini wokuqala wokubumba isilinda wasungulwa futhi wafakwa ekukhiqizeni emshinini wayo wokugaya amaphepha. Umshini wokubumba we-cylinder ka-Dickinson uyingqalabutho kanye nesibonelo se-cylinder yangaphambili, uthathwa njengomqambi wangempela womshini wephepha wohlobo lwesilinda ngabacwaningi abaningi.
Umshini wephepha we-cylinder isikhunta ungakhiqiza zonke izinhlobo zephepha, kusukela ehhovisi elincanyana nephepha lasendlini kuya ebhodini lephepha eliwugqinsi, unezinzuzo zesakhiwo esilula, ukusebenza okulula, ukusetshenziswa kwamandla okuphansi, indawo encane yokufaka kanye nokutshalwa kwezimali okuphansi njll Ngisho nesivinini somshini wokugijima sisemuva kakhulu komshini wohlobo lwe-fourdrinier nomshini wohlobo lwezintambo eziningi, kusenayo indawo embonini yanamuhla yokukhiqiza iphepha.
Ngokwezici zesakhiwo sesigaba se-cylinder mold kanye ne-dryer section, inani le-cylinder mold and dryer, umshini we-cylinder mold paper ungahlukaniswa ube umshini owodwa womshini wokomisa i-cylinder, umshini owodwa wokumisa umshini wokomisa i-cylinder, umshini wokomisa i-cylinder ophindwe kabili, umshini womshini wokomisa ophindwe kabili we-multi-cylinder. Phakathi kwazo, umshini wokomisa isikhunta esisodwa usetshenziswa kakhulu ukukhiqiza iphepha elicwebezelayo elihlangothini olulodwa elincanyana njengephepha leposi nephepha lasendlini njll. Umshini wokomisa i-double cylinder mold usetshenziswa kakhulu ukukhiqiza iphepha lokuphrinta elinesisindo esimaphakathi, iphepha lokubhala, ukugoqa iphepha kanye nephepha eliwuthayela njll.
Isikhathi sokuthumela: Jun-14-2022