Carbon nanotube collection apparatus, carbon nanotube manufacturing apparatus, and carbon nanotube collection method

Patent metadata

Field	Value
Publication number	US-12540421-B2
Application number	US-202218274044-A
Country	US
Kind code	B2
Filing date	Sep 28, 2022
Priority date	Oct 7, 2021
Publication date	Feb 3, 2026
Grant date	Feb 3, 2026

Abstract

A carbon nanotube collection apparatus includes: a collection room having an opening part communicating with a carbon nanotube production apparatus; a winding member arranged inside the collection room and configured to wind a carbon nanotube passed through the opening part from the carbon nanotube production apparatus to form a carbon nanotube wound body; and a separation mechanism configured to move the carbon nanotube wound body from a base end side toward a tip end side of the winding member to separate the carbon nanotube wound body from the winding member.

First claim

The invention claimed is:

1 . A carbon nanotube collection apparatus for collecting a carbon nanotube produced by a carbon nanotube production apparatus, the carbon nanotube collection apparatus comprising:
a collection room having an opening part communicating with the carbon nanotube production apparatus; a winding member arranged inside the collection room and configured to wind the carbon nanotube passed through the opening part from the carbon nanotube production apparatus to form a carbon nanotube wound body; and a separation mechanism configured to move the carbon nanotube wound body from a base end side toward a tip end side of the winding member to separate the carbon nanotube wound body from the winding member.

2 . The carbon nanotube collection apparatus according to claim 1 , further comprising
a separation member arranged on the base end side of the winding member and configured to come into contact with the carbon nanotube wound body, wherein the separation mechanism is a mechanism configured to move one or both of the winding member and the separation member so that a tip of the winding member and the separation member relatively come closer.

3 . The carbon nanotube collection apparatus according to claim 2 , wherein
the separation mechanism is a mechanism configured to move the winding member in a direction of pulling the winding member out of the collection room.

4 . The carbon nanotube collection apparatus according to claim 2 , wherein:
the separation member is a push-out member arranged in the collection room; and the separation mechanism is a mechanism configured to move the push-out member from the base end side toward the tip end side of the winding member to push out and separate the carbon nanotube wound body from the tip of the winding member.

5 . The carbon nanotube collection apparatus according to claim 4 , wherein
the push-out member is formed in a manner to surround an outer periphery of the winding member.

6 . The carbon nanotube collection apparatus according to claim 1 , further comprising
a guide member configured to guide the carbon nanotube passed through the opening part to the winding member.

7 . The carbon nanotube collection apparatus according to claim 1 , further comprising:
a rotary body to which a base end of the winding member is attached; and a compression member configured to come into contact with the carbon nanotube wound body wound on the winding member, wherein the compression member extends in a rotation axis direction of the rotary body and is arranged at a lateral side of the winding member as viewed from the rotation axis direction of the rotary body.

8 . The carbon nanotube collection apparatus according to claim 7 , wherein
the compression member is configured to rotate in a direction opposite to a rotation direction of the rotary body.

9 . The carbon nanotube collection apparatus according to claim 1 , further comprising
a rotary body to which a base end of the winding member is attached, wherein the winding member is supported in a cantilever state by the rotary body.

10 . The carbon nanotube collection apparatus according to claim 1 , further comprising:
a plurality of the winding members; a first rotary body to which a base end of a first winding member is attached; and a second rotary body to which a base end of a second winding member is attached, wherein each of rotation axes of the first rotary body and the second rotary body is in a direction perpendicular to a center line of the opening part and in a horizontal direction.

11 . The carbon nanotube collection apparatus according to claim 10 , wherein
a position of the rotation axis of the first rotary body and a position of the rotation axis of the second rotary body in a direction perpendicular to the center line of the opening part when viewed from the rotation axis direction of the first rotary body are different from each other.

12 . The carbon nanotube collection apparatus according to claim 11 , wherein
the center line of the opening part is located between the rotation axis of the first rotary body and the rotation axis of the second rotary body.

13 . The carbon nanotube collection apparatus according to claim 12 , wherein
when a region extending from the opening part toward an inner side of the collection room along the center line of the opening part is defined as an exit side region of the opening part, a width of the exit side region when viewed from the rotation axis direction of the first rotary body and a width of the opening part have a same length, and none of the plurality of winding members are arranged in the exit side region.

14 . The carbon nanotube collection apparatus according to claim 11 , further comprising:
a third rotary body to which a base end of a third winding member is attached; and a fourth rotary body to which a base end of a fourth winding member is attached, wherein: each of rotation axes of the third rotary body and the fourth rotary body is in a direction perpendicular to the center line of the opening part and in the horizontal direction; the first winding member is arranged between a wall surface, of the collection room, provided with the opening part and the third winding member; and the second winding member is arranged between the wall surface and the fourth winding member.

15 . The carbon nanotube collection apparatus according to claim 14 , wherein:
the center line of the opening part is located between the rotation axis of the first rotary body and the rotation axis of the second rotary body; the center line of the opening part is located between the rotation axis of the third rotary body and the rotation axis of the fourth rotary body; and an interval between the third winding member and the fourth winding member is wider than an interval between the first winding member and the second winding member.

16 . A carbon nanotube manufacturing apparatus, comprising:
a production apparatus for producing a carbon nanotube; and the carbon nanotube collection apparatus according to claim 1 .

17 . A carbon nanotube collection method using the carbon nanotube collection apparatus according to claim 1 , the carbon nanotube collection method comprising:
forming a carbon nanotube wound body by winding a carbon nanotube passed through the opening part of the carbon nanotube collection apparatus by the winding member; and separating the carbon nanotube wound body from the winding member by moving the carbon nanotube wound body from the base end side toward the tip end side of the winding member, wherein forming the carbon nanotube wound body and separating the carbon nanotube wound body are repeatedly performed to form a plurality of the carbon nanotube wound bodies and then collect the carbon nanotube wound bodies from the carbon nanotube collection apparatus.

18 . The carbon nanotube collection method according to claim 17 , wherein, during the separating of the carbon nanotube wound body, the carbon nanotube wound body is separated from the winding member by moving the winding member in a direction of pulling the winding member out of the collection room.

19 . The carbon nanotube collection method according to claim 17 , wherein, during the separating of the carbon nanotube wound body, the carbon nanotube wound body is separated from the winding member by pushing out the carbon nanotube wound body from the base end side toward the tip end side of the winding member.

Assignees

• Dowa Thermotech Co Ltd
• Meijo Nano Carbon Co Ltd
• Osaka Soda Co Ltd
• Meijonano Carbon Co Ltd

Inventors

• Chou Shinya
• Kamioka Maya
• Fujita Takahiro
• Hashimoto Takeshi
• Takano Kei
• Kagawa Hisato

Classifications

• B65H2701/314

  Carbon fibres · CPC title

• C01B32/168

  After-treatment · CPC title

• C01B32/16 Primary

  Preparation · CPC title

• B65H67/0411

  for removing completed take-up packages · CPC title

• B65H54/72

  Framework; Casings; Coverings · CPC title