Apparatuses and methods for high-resolution printing

Patent metadata

Field	Value
Publication number	US-11072398-B2
Application number	US-201715672965-A
Country	US
Kind code	B2
Filing date	Aug 9, 2017
Priority date	Aug 12, 2016
Publication date	Jul 27, 2021
Grant date	Jul 27, 2021

Abstract

A system is provided that includes a print head, a conveyance system, an encoding sensor, and at least one processor. The print head defines a print zone, and is configured to print on objects within the print zone. The conveyance system passes through the print zone, and is configured to translate a pallet through the print zone. The encoding sensor is disposed proximate to the conveyance system, and is configured to be oriented toward the pallet and to acquire positional information regarding the pallet. The at least one processor is operably coupled to the print head and the encoding sensor, and is configured to: receive the positional information from the encoding sensor; determine timing information corresponding to when a substrate disposed on the pallet will be in the print zone; and control the print head to print on the substrate when the substrate is in the print zone.

First claim

What is claimed is:

1. A system comprising:
a print head defining a print zone, the print head configured to print on objects within the print zone;
a conveyance system passing through the print zone, the conveyance system configured to translate a pallet through the print zone;
an encoding sensor disposed proximate to the conveyance system, the encoding sensor configured to be oriented toward the pallet and to acquire positional information regarding the pallet as the pallet is in motion traveling toward the print zone, the positional information corresponding to location and velocity of the pallet; and
at least one processor operably coupled to the print head and the encoding sensor, the at least one processor configured to:
receive the positional information from the encoding sensor;
determine timing information corresponding to when a substrate disposed on the pallet will be in the print zone using the positional information; and
control the print head to print on the substrate when the substrate is moving in the print zone and passing beneath the print head.

2. The system of claim 1 , wherein the encoding sensor comprises at least one of a laser interferometer or a laser velocimeter.

3. The system of claim 1 , wherein the encoding sensor comprises at least one of a magnetic sensor or a proximity sensor.

4. The system of claim 1 , wherein the conveyance system comprises a first conveyance system and a second conveyance system, the first conveyance system configured to take over control of moving the pallet from the second conveyance system at a delivery point, and to return control of the pallet to the second conveyance system at a reception point.

5. The system of claim 4 , wherein the at least one processor is configured to determine when the pallet is at the delivery point or the reception point.

6. The system of claim 1 , wherein the at least one processor is configured to control the conveyance system using the positional information.

7. The system of claim 1 , wherein the encoding sensor is configured to remain oriented toward the pallet as the pallet travels through a sensing zone, and the at least one processor is configured to continuously track the pallet through the sensing zone using the positional information.

8. A system for tracking an object to be printed upon, the object translated on a pallet with a conveyance system, the conveyance system configured to translate the pallet through a print zone of a print head, the system comprising:
an encoding sensor disposed proximate to the conveyance system, the encoding sensor configured to be oriented toward the pallet and to acquire positional information regarding the pallet as the pallet is in motion traveling toward the print zone, the positional information corresponding to location and velocity of the pallet; and
at least one processor configured to be operably coupled to the print head and the encoding sensor, the at least one processor configured to:
receive the positional information from the encoding sensor;
determine timing information corresponding to when a substrate disposed on the pallet will be in the print zone using the positional information; and
control the print head to print on the substrate when the substrate is moving in the print zone and passing beneath the print head.

9. The system of claim 8 , wherein the encoding sensor comprises at least one of a laser interferometer or a laser velocimeter.

10. The system of claim 8 , wherein the encoding sensor comprises at least one of a magnetic sensor or a proximity sensor.

11. The system of claim 8 , wherein the at least one processor is configured to control the conveyance system using the positional information.

12. The system of claim 8 , wherein the encoding sensor is configured to remain oriented toward the pallet as the pallet travels through a sensing zone, and the at least one processor is configured to continuously track the pallet through the sensing zone using the positional information.

Assignees

• Illinois Tool Works

Inventors

• Kucaba Tracy
• Konrath Paul
• Herring Jared

Classifications

• B41J3/4073 Primary

  Printing on three-dimensional objects not being in sheet or web form, e.g. spherical or cubic objects (B41J3/283, B41J3/286 take precedence; building up a 3D object using individual droplets from jetting heads B29C64/112) · CPC title

• B41J11/00

  Devices or arrangements  {of selective printing mechanisms, e.g. ink-jet printers or thermal printers,} for supporting or handling copy material in sheet or web form (script supports connected to the typewriter or printer B41J29/15) · CPC title

• B41J11/007

  Conveyor belts or like feeding devices · CPC title

• B41J3/407

  for marking on special material · CPC title

• B41J11/008

  Controlling printhead for accurately positioning print image on printing material, e.g. with the intention to control the width of margins · CPC title