Systems for the high-speed application of paper-based end closures on composite

Patent metadata

Field	Value
Publication number	US-12384573-B2
Application number	US-202318498558-A
Country	US
Kind code	B2
Filing date	Oct 31, 2023
Priority date	May 28, 2020
Publication date	Aug 12, 2025
Grant date	Aug 12, 2025

Abstract

A system for assembling a container and closure comprising an expanding collet which has a plurality of pivoting collet segments, each configured to simultaneously pivot radially outward about a pivot point. The collet comprises a lip that is engagable with the rim of the open end of the container and an angled tip positioned radially inward from the lip and shaped to press a countersink portion of the closure against an interior wall of the container as the collet segments pivot radially outward. As the container and the chuck are brought together, the rim engages with the lips of the collet segments and causes the angled tips of the collet segments to pivot outward toward the interior wall of the container, thereby pushing the countersink portion of the closure against the interior wall of the container.

First claim

What is claimed is:

1. An assembly module for applying closures to container bodies, the assembly module comprising:
a continuously rotating rotary turret configured to receive and transport at least one container body;
a continuously rotating transfer dial assembly configured to separate a closure from a stacked closure supply, and transport the closure to one of the at least one container bodies;
a closure assembly comprising an expanding collet and a chuck, configured to recess the closure entirely into the at least one container body such that a peripheral edge of the closure is flush with an edge of the at least one container body and form a seal between the container body and the closure.

2. The assembly module of claim 1 , further comprising a heat source configured to apply heat to seal the closure to the at least one container body.

3. The assembly module of claim 2 , wherein the heat source comprises at least one induction coil.

4. The assembly module of claim 3 , wherein the heat source further comprises a composite conductor, wherein the composite conductor partially surrounds the at least one induction coil and directs heat toward the closure.

5. The assembly module of claim 1 , wherein the continuously rotating rotary turret comprises a plurality of pocketed turrets configured to transport the container bodies.

6. The assembly module of claim 5 , wherein the plurality of pocketed turrets each comprise a chamber and a lifting plate, wherein the chamber rotates about a vertical axis and the lifting plate is configured to move vertically within the chamber.

7. The assembly module of claim 1 , wherein the expanding collet and chuck are configured to rotate with the at least one container body.

8. An assembly module for applying closures to container bodies, the assembly module comprising:
a continuously rotating rotary turret configured to receive and transport at least one container body;
a continuously rotating transfer dial assembly configured to separate a closure from a stacked closure supply, and transport the closure to one of the at least one container bodies;
a closure assembly comprising an expanding collet and a chuck, configured to recess the closure entirely into the at least one container body such that a peripheral edge of the closure is disposed inward of an edge of the at least one container body and form a seal between the container body and the closure.

9. The assembly module of claim 8 , further comprising a heat source configured to apply heat to seal the closure to the at least one container body.

10. The assembly module of claim 9 , wherein the heat source comprises at least one induction coil.

11. The assembly module of claim 10 , wherein the heat source further comprises a composite conductor, wherein the composite conductor partially surrounds the at least one induction coil and directs heat toward the closure.

12. The assembly module of claim 8 , wherein the continuously rotating rotary turret comprises a plurality of pocketed turrets configured to transport the container bodies.

13. The assembly module of claim 12 , wherein the plurality of pocketed turrets each comprise a chamber and a lifting plate, wherein the chamber rotates about a vertical axis and the lifting plate is configured to move vertically within the chamber.

14. The assembly module of claim 8 , wherein the expanding collet and chuck are configured to rotate with the at least one container body.

15. An assembly module for applying closures to container bodies, the assembly module comprising:
a continuously rotating rotary turret configured to receive and transport at least one container body;
a continuously rotating transfer dial assembly configured to separate a closure from a stacked closure supply, and transport the closure to one of the at least one container bodies;
a closure assembly comprising an expanding collet and a chuck, configured to:
recess the closure into the container body and fold a peripheral skirt of the closure over an edge of the at least one container body; and
forming at least one seal between the container body and the closure.

16. The assembly module of claim 15 , wherein the at least one seal comprises:
a first seal between the peripheral skirt and an exterior surface of the at least one container body; and
a second seal between the recessed portion of the closure and an interior surface of the at least one container body.

17. The assembly module of claim 16 , further comprising a peripheral sleeve surrounding the chuck and the expanding collet and configured to fold the peripheral skirt over the edge of the at least one container body and against an exterior wall of the at least one container body.

18. The assembly module of claim 17 , wherein the closure assembly further comprises a roller positioned exterior to the peripheral sleeve, wherein the roller is configured to press the peripheral sleeve into the peripheral skirt of the closure and against the exterior wall of the at least one container body.

19. The assembly module of claim 18 , wherein the roller is configured to move laterally relative to the chuck.

20. The assembly module of claim 15 , further comprising a heat source configured to apply heat to form at least one seal between the closure and the at least one container body.

Assignees

• Sonoco Dev Inc

Inventors

• Price Trevor
• Peoples James J

Classifications

• B65B51/227 Primary

  by induction welding · CPC title

• B65B7/2878

  by heat-sealing · CPC title

• B29C66/53461

  joining substantially flat covers and/or substantially flat bottoms to open ends of container bodies · CPC title

• B65B7/285 Primary

  by deformation of the closure · CPC title

• B65D3/04

  essentially cylindrical · CPC title