Multilayer facer manufacturing system

Patent metadata

Field	Value
Publication number	US-2018361702-A1
Application number	US-201715626586-A
Country	US
Kind code	A1
Filing date	Jun 19, 2017
Priority date	Jun 19, 2017
Publication date	Dec 20, 2018
Grant date	—

Abstract

A system for forming a facer includes a hydroformer that receives a first fluid and a second fluid. A first fluid line is configured to deliver the first fluid to a first inlet pipe and a second fluid line configured to deliver the second fluid to a second inlet pipe. The first fluid line includes a first fiber source that stores a first type of fibers and a first thick stock pump that pumps the first type of fibers to the first inlet pipe. The second fluid line includes a second fiber source that stores a second type of fibers and a second thick stock pump that pumps the second fluid to the second inlet pipe. The first fluid and second fluid are simultaneously poured or delivered onto a porous belt or surface to form the facer.

First claim

What is claimed is:

1 . A manufacturing system for forming a facer, comprising:
a hydroformer configured to receive a first fluid and a second fluid in order to form a facer having a first non-woven fiber layer and a second non-woven fiber layer, the first non-woven fiber layer being formed from the first fluid and the second non-woven fiber layer being formed from the second fluid, the hydroformer comprising:
a first inlet pipe configured to receive the first fluid for distribution of the first fluid on a conveyer belt, the conveyer belt being configured to drain the fluid from the first fluid in order to form the first non-woven fiber layer;
a second inlet pipe configured to receive the second fluid for distribution of the second fluid on the conveyer belt atop the first non-woven fiber layer as the fluid is being drained from the first fluid, the conveyer belt being configured to drain the fluid from the second fluid in order to form the second non-woven fiber layer atop the first non-woven fiber layer;
a first fluid line configured to deliver the first fluid to the first inlet pipe, the first fluid line comprising:
a first fiber source, configured to store a first type of fibers;
a first thick stock pump, configured to pump the first type of fibers to the first inlet pipe of the hydroformer;
a second fluid line configured to deliver the second fluid to the second inlet pipe, the second fluid line comprising:
a second fiber source, configured to store a second type of fibers;
a second thick stock pump, configured to pump the second fluid to the second inlet pipe of the hydroformer;
a third fluid line configured to deliver a third fluid to the first fluid line and the second fluid line, the third fluid line comprising:
a third fiber source; and
a third pump configured to pump the third fluid to the first fluid line and/or the second fluid line.

2 . The manufacturing system of claim 1 , wherein the third fluid line couples to the first fluid line upstream of the first thick stock pump.

3 . The manufacturing system of claim 1 , wherein the third fluid line couples to the second fluid line upstream of the second thick stock pump.

4 . The manufacturing system of claim 1 , wherein the first fiber source and the second fiber source are the same fiber source.

5 . The manufacturing system of claim 1 , wherein the first fluid line comprises a first dilution fluid source.

6 . The manufacturing system of claim 1 , wherein the first fluid line comprises a first thin stock pump.

7 . The manufacturing system of claim 1 , wherein the second fluid line comprises a second dilution fluid source.

8 . The manufacturing system of claim 1 , wherein the second fluid line comprises a second thin stock pump.

9 . The manufacturing system of claim 1 , wherein the third fluid comprises a first valve configured to control a flow of the third fluid into the first fluid line.

10 . The manufacturing system of claim 1 , wherein the third fluid comprises a second valve configured to control a flow of the third fluid into the second fluid line.

11 . A manufacturing system for forming a nonwoven fiber mat, comprising:
a fiber mat forming component that is configured to receive a first fluid and a second fluid to form the nonwoven fiber mat having a first non-woven fiber layer and a second non-woven fiber layer, the first non-woven fiber layer being formed from the first fluid and the second non-woven fiber layer being formed from the second fluid, the fiber mat forming component comprising:
a first inlet pipe configured to provide the first fluid to the fiber mat forming component in order to drain the fluid from the first fluid and thereby form the first non-woven fiber layer;
a second inlet pipe configured to provide the second fluid to the fiber mat forming component in order to drain the fluid from the second fluid as the fluid is being drained from the first fluid and thereby form the second non-woven fiber layer atop the first non-woven fiber layer;
a first fluid line configured to deliver the first fluid to the first inlet pipe, the first fluid line comprising:
a first fiber source configured to store a first type of fibers;
a first thick stock pump configured to pump the first type of fibers to the first inlet pipe of the fiber mat forming component;
a second fluid line configured to deliver the second fluid to the second inlet pipe, the second fluid line comprising:
a second fiber source configured to store a second type of fibers;
a second thick stock pump configured to pump the second fluid to the second inlet pipe of the fiber mat forming component;
a third fluid line configured to deliver a third fluid to the first fluid line and the second fluid line, the third fluid line comprising:
a third fiber source; and
a third pump configured to pump the third fluid to the first fluid line and/or the second fluid line.

12 . The manufacturing system of claim 11 , wherein the third fluid line couples to the first fluid line upstream of the first thick stock pump.

13 . The manufacturing system of claim 11 , wherein the third fluid line couples to the second fluid line upstream of the second thick stock pump.

14 . The manufacturing system of claim 11 , wherein the first fiber source and the second fiber source are the same fiber source.

15 . The manufacturing system of claim 11 , wherein the first fluid line comprises a first dilution fluid source.

16 . The manufacturing system of claim 11 , wherein the first fluid line comprises a first thin stock pump.

17 . The manufacturing system of claim 11 , wherein the second fluid line comprises a second dilution fluid source.

18 . The manufacturing system of claim 11 , wherein the second fluid line comprises a second thin stock pump.

19 . The manufacturing system of claim 11 , wherein the third fluid comprises a first valve configured to control a flow of the third fluid into the first fluid line.

20 . The manufacturing system of claim 11 , wherein the third fluid comprises a second valve configured to control a flow of the third fluid into the second fluid line.

Assignees

• Johns Manville

Inventors

• Nandi Souvik
• Bennett Glenda B
• Matthews Thomas

Classifications

• B32B2262/101

  Glass fibres · CPC title

• D21H27/38

  at least one of the sheets having a fibrous composition differing from that of other sheets · CPC title

• D04H1/4374

  using different kinds of webs, e.g. by layering webs · CPC title

• D21H13/40

  vitreous, e.g. mineral wool, glass fibres · CPC title

• B32B5/08

  the fibres or filaments of a layer being of different substances {, e.g. conjugate fibres, mixture of different fibres} · CPC title