<p>Spiral blades are mainly used to transport materials with high viscosity and compressibility. This type of spiral surface has and completes the functions of stirring and mixing materials at the same time during the completion of the transportation operation. The spiral blade of the screw conveyor has three forms: solid spiral surface, belt spiral surface and blade spiral surface. </p>

<p>Manufacturing method of paper roll device for paper machine</p> <p>The paper roll device for a paper machine of the present invention includes a paper roll. Both ends of the paper roll are covered with bearing shells. The bearing shells are provided with Bearing, the middle part of the paper roll is covered with a roll sleeve, the roll sleeve is covered with two top sleeves, and the two top sleeves cooperate with each other to fix the paper core. The paper roll device for a paper machine of the present invention has simple structure, simple operation, convenient use, wide application range, and is suitable for popularization and application; the paper core can be fixed by adjusting the distance between the two top sleeves. The distance is adjustable, which can be applied to roll paper with different widths. </p>