IP Library › Granted Patent US 12,472,716
Granted Patent B2
US 12,472,716 · App. 18/947,487 · Granted Nov 18, 2025

Methods and systems for forming trays

Inventors: Joseph C. Walsh (Boulder, CO); Robert L. Conatser (Golden, CO); Mark Woodward (Lakewood, CO)
Assignee: Graphic Packaging International, LLC
B31B50/262B31B50/04B31B50/282B31B2100/00
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Quick Facts
Patent No.
US 12,472,716
App. No.
18/947,487
Granted
Nov 18, 2025
Kind
B2
Abstract

A method of forming a tray includes obtaining a blank, positioning the blank in a blank feeder assembly of a system for forming a tray, moving the blank from the blank feeder assembly to a nipping assembly, and moving the blank to a tray forming assembly, the tray forming assembly including a tray forming apparatus. The method further includes positioning the blank between a first tray forming portion of the tray forming apparatus and a second tray forming portion of the tray forming apparatus, the first tray forming portion includes a forming block that defines an interior, and the second tray forming portion includes a tray forming member, and driving the forming block into engagement with the blank and the tray forming member such that the blank and the tray forming member are at least partially received in the interior of the forming block to form a tray.

Claims (26)

1 . A method of forming a tray, the method comprising:

obtaining a blank, the blank comprising a plurality of panels and a plurality of end flaps foldably connected to a respective panel of the plurality of panels;

positioning the blank in a blank feeder assembly of a system for forming a tray;

moving the blank from the blank feeder assembly to a nipping assembly;

moving the blank to a tray forming assembly, the tray forming assembly comprising a tray forming apparatus;

positioning the blank between a first tray forming portion of the tray forming apparatus and a second tray forming portion of the tray forming apparatus, the first tray forming portion includes an actuator operably coupled to a forming block that defines an interior for at least partially receiving the blank, and the second tray forming portion includes a tray forming member;

activating the actuator to drive the forming block into engagement with the blank and the tray forming member such that the blank and the tray forming member are at least partially received in the interior of the forming block to form a tray from the blank.

2 . The method of claim 1 , wherein the tray forming member has a generally tapered configuration for approximating a tapered configuration of the tray formed from the blank, the tray forming member comprising a bottom portion, a plurality of side portions, and a flanged portion extending away from the plurality of side portions.

3 . The method of claim 2 , wherein the first tray forming portion further comprises at least one articulating arm pivotably coupled to the forming block, and the method further comprises pivoting the at least one articulating arm relative to the forming block to engage a portion of the blank when the actuator is activated.

4 . The method of claim 3 , wherein pivoting the at least one articulating arm comprises contacting a respective end flap of the plurality of end flaps with a portion of the at least one articulating arm and pressing the respective end flap of the plurality of end flaps against a portion of the flanged portion of the forming block.

5 . The method of claim 1 , wherein the method further comprises activating an ejection assembly to contact the tray formed from the blank and disengage the tray from the tray forming member.

6 . The method of claim 1 , wherein the blank further comprises a plurality of denesting tabs foldably connected to a respective panel of the plurality of panels, and the method further comprises moving the blank to a denicking assembly, and rotating a plurality of denicking wheels to contact and move a respective denesting tab away from the respective panel of the plurality of panels.

7 . The method of claim 1 , wherein the blank further comprises a plurality of reinforcement flaps foldably connected to a respective panel of the plurality of panels, the method further comprises moving the blank to a flap forming assembly, and the method further comprises moving the blank into contact with a plurality of flap forming members to at least partially fold a respective reinforcement flap relative to a respective panel of the plurality of panels.

8 . The method of claim 7 , wherein the method further comprises pressing the blank between a pair of nip rollers of the nipping assembly.

9 . The method of claim 1 , wherein moving the blank from the blank feeder assembly to the nipping assembly comprises moving the blank along a first machine direction of the system, and moving the blank from the nipping assembly to the tray forming assembly comprises moving the blank along a second machine direction of the system, the first machine direction is perpendicular to the second machine direction.

10 . The method of claim 1 , wherein the tray forming apparatus is a first tray forming apparatus, the blank is a first blank, and the method further comprises:

positioning a second blank in the blank feeder assembly;

moving the second blank from the blank feeder assembly to the nipping assembly;

moving the second blank to the tray forming assembly;

positioning the second blank between a first tray forming portion of a second tray forming apparatus and a second tray forming portion of the second tray forming apparatus, the first tray forming portion of the second tray forming apparatus includes an actuator operably coupled to a forming block that defines an interior for at least partially receiving the second blank, and the second tray forming portion of the second tray forming apparatus includes a tray forming member;

activating the actuator of the second tray forming apparatus to drive the forming block of the second tray forming apparatus into engagement with the second blank and the tray forming member of the second tray forming apparatus such that the second blank and the tray forming member of the second tray forming apparatus are at least partially received in the interior of the forming block of the second tray forming apparatus to form a second tray from the second blank.

11 . The method of claim 10 , wherein the tray forming assembly comprises a frame, and the method further comprises at least partially receiving the first blank in a portion of the frame.

12 . The method of claim 11 , wherein the method further comprises slidably moving the frame along a plurality of rails to position the first blank between the first tray forming portion of the first tray forming apparatus and the second tray forming portion of the first tray forming apparatus.

13 . The method of claim 12 , wherein the method further comprises at least partially receiving the second blank in a portion of the frame.

14 . The method of claim 13 , wherein the method further comprises slidably moving the frame along the plurality of rails to position the second blank between the first tray forming portion of the second tray forming apparatus and the second tray forming portion of the second tray forming apparatus.

15 . The method of claim 1 , wherein moving the blank from the blank feeder assembly to the nipping assembly comprises moving the blank along a first machine direction of the system, and moving the blank from the nipping assembly to the tray forming assembly comprises moving the blank along a second machine direction of the system, the first machine direction is different than the second machine direction.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 14, 2024
From: WALSH, JOSEPH C.; CONATSER, ROBERT L.; WOODWARD, MARK
To: GRAPHIC PACKAGING INTERNATIONAL, LLC
Reel/Frame 069260/0582 →
Continuity (3)
Division 18071985 · Nov 30, 2022
Provisional Application 63284823 · Dec 1, 2021
Related Publication 20250065589A1 · Feb 27, 2025
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