Defibrated material manufacturing device

Patent metadata

Field	Value
Publication number	US-11724414-B2
Application number	US-201816048605-A
Country	US
Kind code	B2
Filing date	Jul 30, 2018
Priority date	Jul 31, 2017
Publication date	Aug 15, 2023
Grant date	Aug 15, 2023

Abstract

A defibrated material manufacturing device is configured to defibrate a feedstock of clumps of shreds containing fiber into defibrated material. The defibrated material manufacturing device has a removal device, a metering device, storage device, and a defibrator. The removal device is configured to remove at least a part of foreign matter contained in the feedstock. The metering device is configured to measure the feedstock that has passed the removal device. The storage device is configured to store a measured feedstock measured by the metering device. The defibrator is configured to defibrate the measured feedstock supplied from the storage device into the defibrated material.

First claim

What is claimed is:

1. A defibrated material manufacturing device configured to defibrate a feedstock of clumps of shreds containing fiber into defibrated material, the defibrated material manufacturing device comprising:
a conveyance device configured to convey the feedstock by vibration, and to discharge the feedstock, the conveyance device including a vibratory linear feeder including
a base on which the feedstock is disposed, and
a drive device configured to vibrate the base;

a removal device configured to remove at least a part of foreign matter contained in the feedstock, the removal device having
a first magnet configured to attract at least the part of the foreign matter, the first magnet being disposed below the conveyance device so that an upper side of the first magnet contacts the feedstock dropping from the conveyance device in a direction of gravity, and
a rotating shaft rotationally supporting the first magnet so that the first magnet rotates due to a moment produced by a weight of the part of the foreign matter attached to the first magnet, the first magnet extending along an axial direction of the rotating shaft;

a metering device configured to measure the feedstock that has passed the removal device;
a storage device configured to store a measured feedstock measured by the metering device; and
a defibrator configured to defibrate the measured feedstock supplied from the storage device into the defibrated material.

2. The defibrated material manufacturing device according to claim 1 , wherein
the metering device and the storage device are configured in unison.

3. The defibrated material manufacturing device according to claim 1 , wherein
the removal device further has resin that coats the first magnet.

4. The defibrated material manufacturing device according to claim 1 , wherein
the removal device further has a scraper configured to remove from the removal device at least the part of the foreign matter accreted on the removal device.

5. The defibrated material manufacturing device according to claim 1 , further comprising:
a second magnet disposed away from the feedstock dropping in the direction of gravity, wherein
the removal device is configured to switch relative positions of the first magnet and the second magnet with respect to the feedstock dropping in the direction of gravity so that the first magnet is positioned at a position away from the feedstock dropping in the direction of gravity, and the second magnet is positioned to attract at least the part of the foreign matter of the feedstock dropping in the direction of gravity.

6. The defibrated material manufacturing device according to claim 1 , wherein
the feedstock includes recovered paper.

7. A sheet manufacturing apparatus comprising:
the defibrated material manufacturing device according to claim 1 .

8. The sheet manufacturing apparatus according to claim 7 , further comprising:
a mixing device configured to mix the defibrated material supplied from the defibrated material manufacturing device with resin;
a web forming device configured to form a web from a mixture of the defibrated material and the resin; and
a sheet forming device configured to form a sheet by a process including at least one of compressing and heating the web.

9. The defibrated material manufacturing device according to claim 1 , wherein
the metering device is configured to weight the feedstock that has passed the removal device.

10. The defibrated material manufacturing device according to claim 1 , wherein
the metering device and the storage device are integrated as one-piece body.

11. The defibrated material manufacturing device according to claim 1 , further comprising:
a second magnet movably disposed between a position away from the feedstock dropping in the direction of gravity and a position to attract at least the part of the foreign matter of the feedstock dropping in the direction of gravity, wherein
the first magnet is movably disposed between the position to attract at least the part of the foreign matter of the feedstock dropping in the direction of gravity and the position away from the feedstock dropping in the direction of gravity.

12. The defibrated material manufacturing device according to claim 1 , wherein
the conveyance device further includes an upstream vibratory linear feeder disposed upstream of the vibratory linear feeder, the upstream vibratory linear feeder including
an upstream base on which the feedstock is disposed, and
an upstream drive device configured to vibrate the upstream base.

13. The defibrated material manufacturing device according to claim 12 , wherein
the upstream base of the upstream vibratory linear feeder slopes downwardly toward the vibratory linear feeder.

14. A defibrated material manufacturing device configured to defibrate a feedstock of clumps of shreds containing fiber into defibrated material, the defibrated material manufacturing device comprising:
a conveyance device configured to convey the feedstock by vibration, and to discharge the feedstock, the conveyance device including a vibratory linear feeder including
a base on which the feedstock is disposed, and
a drive device configured to vibrate the base;

a magnetic removal device being configured to remove at least a part of foreign matter contained in the feedstock, the magnetic removal device having
a first magnet configured to attract at least the part of the foreign matter, the first magnet being disposed below the conveyance device so that an upper side of the first magnet contacts the feedstock dropping from the conveyance device in a direction of gravity, and
a rotating shaft rotationally supporting the first magnet so that the first magnet rotates due to a moment produced by a weight of the part of the foreign matter attached to the first magnet, the first magnet extending along an axial direction of the rotating shaft;

a cell load configured to measure the feedstock that has passed the magnetic removal device;
a container configured to store a measured feedstock measured by the cell load; and
a defibrator configured to defibrate the measured feedstock supplied from the container into the defibrated material.

Assignees

• Seiko Epson Corp

Inventors

• Miyasaka Yoichi

Classifications

• B27N3/007 Primary

  and at least partly composed of recycled material · CPC title

• B27N3/002

  characterised by the type of binder (compositions of macromolecular compounds C08L) · CPC title

• B27N3/04

  from fibres · CPC title

• B27N3/12

  from fibres · CPC title

• D21B1/02 Primary

  Pretreatment of the raw materials by chemical or physical means (removal of bark B27L) · CPC title