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Internet vacuum drum shaping apparatus used for high speed thin sheet toilet paper machine

A technology of vacuum forming and toilet paper, which is applied in the direction of paper machine, paper machine wet end, paper making, etc. It can solve the problems of uneven paper sheet forming, low dehydration efficiency, large pulp disturbance, etc., and achieve low manufacturing cost, low transmission power, The effect of long life of the net

Inactive Publication Date: 2009-11-11
SOUTH CHINA UNIV OF TECH
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the patent of the present invention is to overcome the disadvantages of uneven sheet formation, low dehydration efficiency and large pulp disturbance in the prior art, and provide a gap vacuum roller former for high-speed tissue tissue machines

Method used

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  • Internet vacuum drum shaping apparatus used for high speed thin sheet toilet paper machine
  • Internet vacuum drum shaping apparatus used for high speed thin sheet toilet paper machine
  • Internet vacuum drum shaping apparatus used for high speed thin sheet toilet paper machine

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Embodiment Construction

[0019] The present invention will be described in further detail below with reference to the accompanying drawings and examples, but the embodiments of the present invention are not limited thereto.

[0020] Such as figure 1 , 2 As shown, a gap vacuum roll former for a high-speed tissue machine includes an outer wire 3 supported by a breast roll 2, a guide roll 9 and a vacuum forming roll 11, and an inner wire 10 cooperating with the outer wire, The headbox 1 located at the wedge-shaped opening formed by the outer net 3 and the inner net 10, the vacuum forming roll 11 is composed of a roll core provided with a vacuum chamber 12 and a roll shell 19, the roll shell 19 is connected with the transmission mechanism, the vacuum chamber 12 is connected with the Sealing elements 13 are used between the roll shells 19, and the surface of the roll shell 19 is provided with a water storage groove 14. The former also includes a pressure pulse extrusion device 4 located outside the outer ...

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Abstract

The invention discloses a sandwich vacuum roller former for a high-speed tissue paper machine. The former relies on the centrifugal force and vacuum suction force generated by the high-speed rotation of the vacuum roller to dehydrate both sides. The wire part of the forming area is equipped with a pressure pulse extrusion device, so the tension generated by the wire part can also dehydrate the pulp in large quantities. The feature of the former is that the dehydration area is divided into three areas: centrifugal dehydration, vacuum dehydration, and centrifugal extrusion dehydration, dehydration in sections, and efficient forming. The former includes guide rollers, large-diameter vacuum forming rollers, outer nets, inner nets, flexible pressure pulse extrusion devices in the net part, air chambers and other devices, which can not only make the pulp flow efficient dehydration and forming without disturbance, but also Due to the balanced dehydration performance on both sides of the pulp, the formed paper web has better uniformity and consistency on both sides. The former has simple structure, low transmission power and good reliability, and is more suitable for use on high-speed and low-weight tissue tissue machines.

Description

technical field [0001] The invention relates to a pulp former, in particular to a gap vacuum roller former for a high-speed tissue machine. Background technique [0002] Due to the rapid development of the world economy in recent decades, the consumption of tissue paper and paper products has also increased rapidly. Household paper and paper products have become a fast-growing variety in the paper industry, and its development has promoted the accelerated renewal and replacement of toilet paper machines. At present, the advanced tissue paper machine has reached a width of 6m and a speed of 2400m / min. In order to obtain higher economic benefits, the current modern high-speed tissue paper machine usually adopts a multi-layer floating machine based on the uniform distribution of high-turbulent pulp as its basic function. Sheet-type stepped diffusion headbox, the application of layering technology on the headbox of high-speed tissue paper machine requires that the pulp in the s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21F1/00D21F3/04
Inventor 陈克复陈奇峰杨仁党李军莫立焕
Owner SOUTH CHINA UNIV OF TECH
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