Wire feeding systems and devices

Patent metadata

Field	Value
Publication number	US-9403234-B2
Application number	US-201213655134-A
Country	US
Kind code	B2
Filing date	Oct 18, 2012
Priority date	Nov 7, 2011
Publication date	Aug 2, 2016
Grant date	Aug 2, 2016

Abstract

Provided herein are systems including a wire spool having a core with a core diameter and wire wound around the core and having a wire diameter. An outer diameter of the wire spool is defined by a sum of the core diameter and the wire diameter. The systems may also include a sensing system having a sensor component disposed on the wire spool and/or a wire spool hub. The sensing system is adapted to acquire data corresponding to a parameter indicative of the outer diameter of the wire spool.

First claim

The invention claimed is:

1. A system, comprising:
a wire spool comprising a core having a core diameter and wire wound around the core and having an outer diameter:
a wire sensor configured to sense a measured outer diameter of the wire wound around the core of the wire spool;
a first sensor component disposed on the wire spool or a wire spool hub and configured to sense a rotational speed of the wire spool; and
a second sensor component configured to sense a rotational speed of a drive roll of a wire feed drive mechanism that unwinds the wire from the wire spool; and

a control system configured to receive data relating to the rotational speeds of the wire spool and the drive roll from the first and second sensor components, and the measured outer diameter of the wire wound around the core of the wire spool, to determine a determined outer diameter of the wire wound around the core of the wire spool based on the rotational speed of the wire spool, the rotational speed of the drive roll, and a known diameter of the drive roll, and to determine a wire slip error based on a comparison of the determined outer diameter of the wire wound around the core of the wire spool and the measured outer diameter of the wire wound around the core of the wire spool.

2. The system of claim 1 , wherein the control system is configured to determine when the outer diameter is within a preset tolerance of the core diameter and to alert an operator when the outer diameter is within the preset tolerance.

3. The system of claim 1 , wherein the control system is configured to utilize the received data to determine one or more operating parameter adjustments of a dual motor wire feeding system of the wire feed drive mechanism.

4. The system of claim 1 , wherein the first sensor component comprises slots disposed on the wire spool or the wire spool hub, and an encoder sensor configured to sense revolutions of the slots.

5. The system of claim 1 , wherein the first sensor component comprises magnetic strips, and a Hall effect sensor configured to detect revolutions of the magnetic strips.

6. The system of claim 1 , wherein the first sensor component comprises a gear component comprising gear teeth and being disposed on the wire spool or the wire spool hub, and a sensor configured to detect revolutions of the gear teeth.

7. A welding wire feed system, comprising:
a spool mounting hub;
a wire spool mounted on the spool mounting hub, wherein the wire spool comprises a core and wire wound around the core having an outer diameter;
a wire sensor configured to sense a measured outer diameter of the wire wound around the core of the wire spool;
a first sensor coupled to the spool mounting hub, the wire spool, or both, and configured to measure a rotational speed of the wire spool as the wire is unwound from the core;
a second sensor configured to sense a rotational speed of a drive roll of a wire feed drive mechanism that unwinds the wire from the wire spool; and
control circuitry configured to receive data from the wire sensor, the first sensor, and the second sensor and to determine a determined outer diameter of the wire wound around the core of the wire spool based on the rotational speed of the wire spool, the rotational speed of the drive roll, and a known diameter of the drive roll, and to determine a wire slip error based on the determined outer diameter of the wire wound around the core of the wire spool and the measured outer diameter of the wire wound around the core of the wire spool.

8. The welding wire feed system of claim 7 , wherein the control circuitry is configured to alert an operator to an error when the outer diameter is approximately equal to a diameter of the core.

9. The welding wire feed system of claim 7 , wherein the control circuitry is configured to adjust a control parameter of a dual motor wire feed system of the wire feed drive mechanism based on the received data.

10. The welding wire feed system of claim 9 , wherein the control parameter comprises a control signal that controls a brake pressure applied to a drive motor of the dual motor wire feed system.

11. The welding wire feed system of claim 7 , wherein the control circuitry is configured to compute an approximate remaining weld time based on the outer diameter of the wire.

12. A welding wire feed system, comprising:
a spool mounting hub;
a wire spool configured to be mounted on the spool mounting hub, wherein the wire spool comprises a core and wire wound around the core having an outer diameter;
a wire feed drive mechanism configured to unwind the wire from the core to supply the wire to a welding operation;
a wire sensor configured to sense a measured outer diameter of the wire wound around the core of the wire spool;
a first sensor coupled to the spool mounting hub, the wire spool, or both, and configured to measure a rotational speed of the wire spool as the wire is unwound from the core;
a second sensor configured to sense a rotational speed of a drive roll of the wire feed drive mechanism; and
control circuitry configured to receive data relating to the rotational speeds of the wire spool and the drive roll from the first and second sensors, and the measured outer diameter of the wire wound around the core of the wire spool, to determine a determined outer diameter of the wire wound around the core of the wire spool based on the rotational speed of the wire spool, the rotational speed of the drive roll, and a known diameter of the drive roll, and to determine a wire slip error and control a brake pressure applied to a drive motor of the wire feed drive mechanism based on a comparison of the determined outer diameter of the wire wound around the core of the wire spool and the measured outer diameter of the wire wound around the core of the wire spool.

13. The welding wire feed system of claim 12 , wherein the wire feed drive mechanism comprises a pair of drive rolls and a motor configured to provide energy to power the pair of drive rolls.

14. The welding wire feed system of claim 12 , wherein the wire feed drive mechanism comprises a dual motor drive system comprising a push motor and a pull motor configured to cooperate to supply the wire to the welding operation.

15. The welding wire feed system of claim 14 , wherein the control circuitry is configured to utilize the determined outer diameter to adjust one or more control parameters of the dual motor drive system.

Assignees

• Illinois Tool Works

Inventors

• Christopher Mark R
• Ott Brian Lee
• Vandenberg Michael P

Classifications

• B23K9/1333 Primary

  Dereeling means · CPC title

• B65H59/387

  Regulating unwinding speed · CPC title

• B65H63/082

  responsive to a predetermined size or diameter of the package · CPC title

• B65H2701/36

  Wires · CPC title