Automatic calendering device for inorganic paper production
A calendering device and inorganic paper technology, applied in the direction of papermaking, paper machine, press, etc., can solve the problems of poor elongation effect, paper surface wrinkle, paper surface unevenness, etc., to improve continuity and stability, reduce control Difficulty, the effect of improving the rolling performance
Active Publication Date: 2019-12-20
北京中国科学院老专家技术中心
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However, this method completely relies on the pressure between the upper calender roll and the lower calender roll to familiarize the calendering and stretching. Since the thickness of the paper is often uneven before calendering, not only is it easy to have uneven thickness during the calendering process, but also the thickness during the calendering process The thicker parts are accumulated and compacted by excessive pressure. In fact, the extension effect is not good, resulting in poor air permeability of the paper, and serious nodules. Moreover, under different pressures, it is easy to cause wrinkles on the surface of the paper, affecting the quality of the paper. paper properties
In addition, due to excessive pressure, the paper slurry will stick to the press roller, resulting in uneven paper surface and reducing the quality of inorganic paper
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[0029] see Figure 1~4 , in an embodiment of the present invention, an automatic calendering device for inorganic paper production, including a frame mechanism, an upper calender roll 7, a lower calender roll 6, a roll gap adjustment mechanism and a cleaning lubricating block 24, wherein the upper calender roll 7 The gap between the lower calender roll 6 and the lower calender roll 6 can be adjusted by the gap adjustment mechanism, and the upper calender roll 7 and the lower calender roll 6 are arranged in parallel to the axis direction, and the features are: , the front side or rear side of the upper calender roll 7 and the lower calender roll 6 is provided with the cleaning lubricating block 24; the cleaning lubricating block 24 can direction reciprocating movement, so that the calender roll surface of the upper calender roll 7 or the lower calender roll 6 can be cleaned and lubricated; the side of the frame mechanism corresponding to the cleaning lubricating block is also p...
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The invention relates to the field of inorganic paper manufacturing equipment, an automatic calendering device for inorganic paper production is disclosed. As that rotational speed difference is utilized, at that time of calendering the inorganic paper, at the same time of pressure calendering between an upper calendering roller and a lower calendering roller, the rotational speed difference causes slip between the upper portion in the thickness direction of the inorganic paper and the lower portion in the calendering running direction, the elongation property of inorganic paper during calendering is improved, a rotating buffer mechanism can adjust and buffer the instantaneous rotational speed of the upper calendering roller or the lower calendering roller, breakage of the inorganic paperduring calendering can be prevented, the continuity and stability of production can be improved, the hidden arrangement mode of lubricating blocks can be cleaned, the calendering process is not affected, too much space is not occupied, and in addition, the device is simple and convenient to adjust the nip, and is locked by using locking and wedge-shaped locking gauge blocks, so as to facilitate debugging the stability after production.
Description
technical field [0001] The invention relates to the technical field of inorganic paper manufacturing equipment, in particular to an automatic calendering device for inorganic paper production. Background technique [0002] In the manufacturing process of inorganic paper, a calendering device is needed for calendering. Traditional calenders generally use the pressure and relative rotational force between the upper calender roll and the lower calender roll to achieve calender extension and advancement, and the upper calender roll and the lower calender roll. The speed of rotation between them is the same, so as to realize the smooth forward running of the inorganic paper and prevent the problem of paper breakage during the calendering process. However, this method completely relies on the pressure between the upper calender roll and the lower calender roll to familiarize the calendering and stretching. Since the thickness of the paper is often uneven before calendering, not on...
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IPC IPC(8): D21F3/08
CPCD21F3/08
Inventor 魏大为马彤魏立新
Owner 北京中国科学院老专家技术中心