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Transfer plate useful in the manufacture of panel and board products

A technology for conveying panels and panels, applied in the direction of papermaking, fiberboard, textiles and papermaking, etc., can solve problems such as adhesion, affecting the surface appearance of panels or panel products, and falling off of wet grinding parent materials.

Inactive Publication Date: 2009-12-09
USG INTERIORS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during this transfer phase, part of the wet milled matrix material will come off and stick to the transfer plate
[0006] Adhesion of material to the transfer plate can adversely affect the surface appearance of the panel or panel product

Method used

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  • Transfer plate useful in the manufacture of panel and board products
  • Transfer plate useful in the manufacture of panel and board products
  • Transfer plate useful in the manufacture of panel and board products

Examples

Experimental program
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Embodiment Construction

[0015] The present invention relates to an improved apparatus and method for forming panels which includes the use of perforated transfer plates to facilitate the transfer of panel precursors from one section of the production line to another. For ease of discussion, a "panel parent" refers to a panel at any stage prior to final form. Typically, the panel precursor is wet ground wood pulp of fibrous material.

[0016] The inventors have discovered that the efficiency and quality of panel forming can be improved surprisingly and unpredictably by using a fluid, such as air, to lubricate the transfer of the panel precursor to prevent portions of the panel precursor from sticking to the transfer plate. Panels produced using the apparatus and method of the present invention thus have fewer defects due to galling of material that builds up on the transfer plate and are more efficient to produce due to reduced downtime for removing buildup from the transfer plate . The present inve...

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PUM

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Abstract

The invention provides an apparatus for forming a panel comprising a mesh support (10) and a transfer plate (20) comprising at least one surface (30) comprising a plurality of pores having an average pore diameter of about 1200 microns or less. The invention further provides a method comprising (i) forming an aqueous composition comprising a fiber material, (ii) depositing the composition onto a movable mesh support (10) to form an entangled fiber material containing water; (iii) removing at least a portion of the water from the entangled fiber material, and (iv) transferring the entangled fiber material from the movable mesh support (10) by passing it over a transfer plate (20), wherein the transfer plate (20) comprises at least one surface ' (30) comprising a plurality of pores having an average pore diameter of about 1200 microns or less.

Description

technical field Background technique [0001] The manufacture of panel and board products generally consists of a production line comprising different areas (e.g. cutting area, drying area, dewatering area, etc.) using different movable support devices including belts, rollers, mesh carriers Wait. Transfer plates are often used to support the parent material of a panel or panel during the transition from one area to the next. However, in some cases the transfer plate becomes a source of defects in the final sheet product because the transfer of the parent material on the transfer plate is not smooth. The blemish appearance associated with the use of conveying boards is especially observed in porous and / or brittle products such as acoustical boards and wood fiber boards. [0002] Acoustic panels are used in commercial and residential buildings to form interior surfaces such as ceilings, wall panels, and other partitions (eg, between office cubicles). The panels are generally...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21J1/00
CPCD21J1/00
Inventor 格利高里·O·帕姆史蒂文·W·苏切约翰·J·波利纳雷·C·普里维特斯蒂芬·舍特勒
Owner USG INTERIORS INC