Inflatable paper winding shaft of high speed paper machine

Abstract

The invention discloses an inflatable paper winding shaft of a high speed paper machine, and specifically provides a paper winding shaft which has the advantage of simple inflation structure and is convenient in use. The inflatable paper winding shaft comprises a hollow paper winding shaft body which is equipped with a plurality of through holes, wherein, each through hole is inlaid with an expansion block which moves along the shaft diameter direction; the shaft body is internally equipped with an inflatable airbag; and the end part of the inflatable airbag is equipped with an air nozzle which extends outside the shaft body. When in use, after the expansion block retracts into the shaft body, a paper core is easily sheathed on the paper winding shaft owing to smaller amount of gas in the inflatable airbag; the inflatable airbag is aerated via the air nozzle and then expands to extrude the expansion block so that the expansion block extends outside the through hole to be tightly connected with the paper core; and when the paper winding shaft rotates, the paper core is driven to rotate at the same time so as to realize winding. The inflatable paper winding shaft has a simple structure, and is flexible in operation and convenient in use.

Description

technical field [0001] The invention relates to the field of papermaking, and more specifically relates to an air-expanding reel for a high-speed paper machine. Background technique [0002] During papermaking and rewinding, it is required that the reel shaft and the paper core be closely matched to be able to roll the paper normally. However, if the diameter of the reel shaft is too large, it is difficult to install the paper core. At present, for the convenience of use, most of the paper reels are retractable structures. When the paper core is installed, the paper reel shrinks. The telescopic mode of the roll paper shaft adopted at present is realized by a mechanical structure, which has complex structure, low reliability and inconvenient maintenance. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies in the prior art, and to provide a rolling paper shaft with a simple structure and convenient use through inflation a...

AI Technical Summary

Problems solved by technology

The telescopic mode of the roll paper shaft currently used is realized by a mechanical structure, which has a complex structure, low reliability, and inconvenient maintenance.

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