Super soft press-polishing machine
A soft calendering and super technology, applied in the direction of calender, paper machine, textile and paper making, etc., can solve the problems of large difference in quality index, large equipment investment, easy crushing and wear of roll surface, and achieve a large society Benefits and economic benefits, sensitive and accurate control, convenient and safe operation
Inactive Publication Date: 2007-12-26
诸葛宝钧
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Problems solved by technology
The roll surface is easy to be crushed and worn during work, so it is necessary to frequently repair and replace the roll
In addition, the pulp roll cannot withstand high temperature, and the working speed generally does not exceed 600-800m / min
Therefore, the existing super calender has the following disadvantages: frequent shutdown for roll change, low working speed and low production efficiency; large equipment investment and high production cost when matched with the paper machine production line
In the existing super calender, multiple calender rollers are arranged vertically. Due to the influence of the calender roller’s own weight, the line pressure of each nip gradually increases from top to bottom, resulting in a large difference in the quality index of the two sides of the paper after calendering. Improve the grade of paper, affect the printing speed and printing effect
Some existing super calender top rolls and bottom rolls are fixed middle and high rolls. When the pressure of the working line changes, the change of the bending degree of the roll body under pressure will cause a large difference in the quality index of the paper after calendering and finishing.
Method used
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[0023] Figure 1 is a ten-roll super soft calender running online, which consists of frame 1, top roll 2, hot roll 3, soft roll 4, bottom roll 5, pressurized servo cylinder 6, intermediate roll balance device 7, and paper threading system 8. The frame guide rail 9, the hydraulic cylinder 10, the lever 11, and the lever shaft 12 are composed. The top roller 2 is fixed on the top of the frame 1, the bottom roller 5 is fixed on the bottom of the frame 1, the bottom roller 5 can move up and down on the frame guide rail 9, and the bottom roller support is a pressurized servo oil cylinder 6. A heat roll 3 and a soft roll 4 are arranged in a vertical plane between the top roll 2 and the bottom roll 5 . There are 10 calender rolls in total, including 6 sets of soft rolls including top roll 2 and bottom roll 5, and 4 sets of hot roll intermediate rolls. The upper top roll 2, soft roll 4, and hot roll 3 are arranged alternately to form four finishing nips, and the lower soft roll 4, hot...
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This invention relates to a super soft calendar including a rack, a top roller, a middle roller, a bottom roller, a pressed servo cylinder, a middle roller balance device and a paper-leading system characterizing that a pressing area is composed of an adjacent hot roller and a soft roller, each of which is matched an independent hydraulic middle roller balance device, which can increase the production ability by 50% and control difference of the two sides and that of banner and operates synchronously with a paper-making machine or a coating machine on line.
Description
technical field [0001] A super soft calender is a calender used in a papermaking production line and belongs to the technical field of finishing machinery and equipment in papermaking machinery. Background technique [0002] In the paper production line, the calender is the key equipment that ultimately determines the paper quality index. For a long time, high-grade cultural papers such as coated paper, super-calendered paper and special industrial technical papers have been finished on existing super-calenders. The existing super calender soft roll is made of special wool paper or cotton pulp paper, which is called "pulp roll". During work, the roll surface is easily crushed and worn, so the roll must be regularly ground and replaced. In addition, the pulp roll cannot withstand high temperature, and the working speed generally does not exceed 600-800m / min. Therefore the existing super calender has the following disadvantages: frequent shutdown for roll change, low workin...
Claims
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Inventor 诸葛宝钧
Owner 诸葛宝钧