Method and an apparatus for making mineral fibre products

Patent metadata

Field	Value
Publication number	US-10017885-B2
Application number	US-201314648793-A
Country	US
Kind code	B2
Filing date	Dec 5, 2013
Priority date	Dec 11, 2012
Publication date	Jul 10, 2018
Grant date	Jul 10, 2018

Abstract

The present invention concerns a method and an apparatus for making mineral fibre products by splitting an incoming primary web, said apparatus comprising a feeding conveyor for providing an incoming primary web of air-laid mineral wool, said feeding conveyor having a first direction of travel; a station for shifting the direction of travel of the primary web by receiving the primary web on a turning table and then transferring the primary web onto a receiving conveyor, where said receiving conveyor has a second direction of travel different to the first direction of travel; wherein a web splitter is provided at the downstream end of said receiving conveyor for dividing the incoming primary web into a first primary web and second primary web and wherein the turning table is shiftable in the first direction of travel.

First claim

The invention claimed is:

1. A method of making mineral fibre products, comprising the steps of:
providing an incoming primary web of mineral wool;
dividing the incoming primary web longitudinally into a first primary web and a second primary web for feeding a first production line and a second production line; and
sideway adjusting the width of the first and second primary webs during the production in such a manner that the first and second primary webs, directly after division are fed to a fixed first primary web conveyor at the first production line and to a fixed second primary web conveyor at the second production line, respectively;
wherein the sideway adjusting of the primary web includes a turning table and a receiving conveyor that are sideways adjustable in relation to the fixed first primary web conveyor and the fixed second primary web conveyor, respectively.

2. A method according to claim 1 , wherein the dividing of the primary web is performed in a station for shifting a first direction of travel of the primary web by receiving the primary web on the turning table and then transferring the primary web onto the receiving conveyor, where the receiving conveyor has a second direction of travel different from the first direction of travel.

3. A method according to claim 2 , wherein the division of the primary web is carried out by a web splitter provided at the downstream end of said receiving conveyor for dividing the incoming primary web into a first primary web and second primary web wherein the turning table is shiftable in the first direction of travel.

4. A method according to claim 1 , wherein said first and second primary webs are conveyed into a first pendulum conveyor and a second pendulum conveyor, respectively, on each of the production lines.

5. A method according to claim 1 , wherein a base layer is produced on the first production line and a top layer is produced on the second production line.

6. A method according to claim 5 , whereby the base layer and the top layer are joined together in a dual density product produced by running the two mineral fibre production lines in parallel.

7. A method according to claim 1 , comprising the step of controlling the division and thereby controlling mass distribution of mineral fibre material between the first and second primary web in the station in accordance with the demand for mineral fibre material on the two production lines.

8. A method of making mineral fibre products, comprising the steps of
providing an incoming primary web of mineral wool;
dividing the incoming primary web longitudinally into a first primary web and a second primary web for feeding a first production line and a second production line; and
adjusting the width of the first and second primary webs during the production in accordance with production demand on said first and second production lines,
wherein a base layer is produced on the first production line and a top layer is produced on the second production line,
wherein the first production line producing the base layer cures the first primary web.

9. A method according to claim 8 , in which after the first production line produces a cured base core layer and the second production line produces an uncured top layer, the cured base layer and the uncured top layer are joined to a laminated product after which the laminated product is cured.

10. A method according to claim 8 , wherein the first production line producing the base layer further changes the fibre orientation on the first web.

Assignees

• Rockwool Int

Inventors

• Rosenberg Gorm
• Westerberg Christian

Classifications

• Y10T83/2087

  Diverging product movers · CPC title

• B32B2038/045

  Slitting · CPC title

• Y10T156/1059

  Splitting sheet lamina in plane intermediate of faces · CPC title

• B32B38/04

  Punching, slitting or perforating · CPC title

• B32B37/0046

  characterised by constructional aspects of the apparatus · CPC title