Methods and systems of using pocket roller to place objects on moving web

Patent metadata

Field	Value
Publication number	US-12221239-B2
Application number	US-202218711210-A
Country	US
Kind code	B2
Filing date	Nov 29, 2022
Priority date	Dec 2, 2021
Publication date	Feb 11, 2025
Grant date	Feb 11, 2025

Abstract

Methods and systems of using pocket roller (110, 130) to place objects on a continuously moving web (2) are provided. The objects are received in an array of pockets (124) on a major surface of a roller sleeve (120). The roller sleeve (120) engages with an adhesive surface (22) of the continuously moving web (2) to place the objects on the web (2).

First claim

What is claimed is:

1. A method of placing a plurality of rigid objects on a web, the method comprising:
positioning a roller adjacent to the web, wherein the roller comprises a roller sleeve mounted thereon, and the roller sleeve comprises an array of pockets on a major surface thereof;
continuously moving the web along a machine direction at a predetermined speed; and
without substantially changing the predetermined speed of the web:
engaging the roller sleeve with an adhesive surface of the web; and
separating the moving web from the roller sleeve such that the plurality of rigid objects is attached to the adhesive surface of the web.

2. The method of claim 1 , wherein the rigid objects are held in the pockets primarily by a friction force.

3. The method of claim 1 , further comprising nipping a nipping roller against the roller.

4. The method of claim 1 , further comprising registering the roller sleeve with respect to the web when the web is moving.

5. The method of claim 1 , further comprising feeding the rigid objects into the array of pockets.

6. The method of claim 1 , further comprising adjusting a rotating speed of the roller when feeding the rigid objects into the pockets of the roller sleeve.

7. The method of claim 1 , further comprising adjusting the rotating speed of the roller to match the predetermined speed of the moving web.

8. The method of claim 1 , further comprising engraving into a major surface of the roller sleeve to form the pockets.

9. A roll-to-roll system of placing objects on a moving web, the system comprising:
a roller comprising a roller sleeve, the roller sleeve comprising an array of pockets on a major surface thereof, the pockets of the roller sleeve being configured to receive the objects; and
a moving web comprising an adhesive surface to be engaged with the roller sleeve.

10. The system of claim 9 , wherein the objects are held in the pockets primarily by a friction force.

11. The system of claim 9 , further comprising a nipping roller to nip with the roller.

12. The system of claim 9 , wherein the roller sleeve further comprises one or more registration marks on the major surface thereof to register the roller sleeve with respect to the moving web.

13. The system of claim 9 , further comprising a feeding device to feed the objects into the array of pockets.

14. The system of claim 9 , wherein the roller sleeve is a rubber sleeve.

15. The system of claim 9 , wherein the objects comprise semiconductor chips.

Assignees

• 3M Innovative Properties Company

Inventors

• Farley Joseph B
• Swanson Ronald P
• Smith Matthew R D
• Stay Matthew S
• Dodds Shawn C
• Meyers Kara A
• Niccum Kayla C
• Pekurovsky Mikhail L
• Pekurovsky Lyudmila A
• Shah Saagar A

Classifications

• B65H2701/12

  Surface aspects · CPC title

• B65H37/002 Primary

  Web delivery apparatus, the web serving as support for articles, material or another web · CPC title

• B65B15/04 Primary

  Attaching a series of articles, e.g. small electrical components, to a continuous web {(ammunition filling F42B)} · CPC title

• B65H2701/1942

  Web supporting regularly spaced non-adhesive articles · CPC title

• B65H2701/123

  Hollow portions · CPC title