Method and system for handling wire breakage and overflow in a multiple dynamo-electric machine part winder

• US 6,213,422 B1
• Filed: 07/07/1998
• Issued: 04/10/2001
• Est. Priority Date: 07/16/1997
• Status: Expired due to Fees

• Current Assignee: Axis Usa, Inc.
• Original Assignee: Axis Usa, Inc.
• Inventors: Mugelli, Maurizio, Galassi, Rossano, Randazzo, Antonio
• Primary Examiner(s): Matecki, Katherine A.
• Application Number:
  US09/111,410
• Time in Patent Office: 1,008 Days
• Field of Search: 242/433.4, 242/433.3, 242/433, 242/439.4, 242/443.1, 242/473.6, 242/473.8
• US Class Current: 242/433.3
• CPC Class Codes: H02K 15/00 Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
• CPC Class Codes: H02K 15/09 by laying conductors into slotted rotors

Abstract

Methods and system for allowing the winder to continue to wind armatures and therefore avoid a total loss of production which would otherwise occur during the time which passes between breakage or overflow of the wire and intervention of the operator to restore normal winding conditions are provided. Upon detection of a wire breakage or overflow at a winding position, the wires from flyers corresponding to that position are withdrawn by a withdrawing device. In addition to withdrawing the wires from flyers corresponding to the position where the wire breakage or overflow took place, all flyer rotations in the multiple dynamo-electric part winder are stopped. The affected armatures are transferred to a reject track and new armatures to be wound are subsequently delivered to the winding positions. While the armature in the position where the breakage or overflow was detected remains unwound, the armature in the other position is wound and delivered to the conveyor. The transfer device sends back and forth two unwound armatures to the position where the breakage or overflow was detected, while only wound armatures from the unaffected positions are delivered to the conveyor.

Claims

1. A system for operating a machine for simultaneously winding a plurality of coils of wire on a plurality of dynamo-electric machine armature cores in respective winding positions, said system comprising:

a monitoring device for monitoring said wire for incorrect feeding;

a controlling device that upon detection of incorrect feeding of said wire in one of said winding positions, controls said wire to prevent further dispensing of said wire in said one of said winding positions corresponding to said incorrect feeding and terminates winding operation at others of said winding positions; and

a transfer device for removing all of said cores from said respective winding positions.

2. The system of claim 1 wherein said controlling device withdraws said wire from flyers associated with said one of said winding positions corresponding to said incorrect feeding and stops flyer rotations at others of said winding positions.

3. The system of claim 1 wherein said controlling device cuts and grips wires leading to respective flyers corresponding to others of said winding positions.

4. The system of claim 1 wherein said transfer device delivers a first batch of cores to said respective winding positions for winding and removes each of said first batch of cores from respective winding positions after winding operation is completed, wherein one of said first batch of cores corresponding to said one of said winding positions corresponding to said incorrect feeding remains unwound and said cores of said first batch of cores corresponding to others of said winding positions are wound.

5. The system of claim 1 wherein:

said transfer device retains said one of said first batch of cores of said one of said winding positions corresponding to said incorrect feeding in a gripping device; and

places said others of said first batch of cores corresponding to others of said winding positions on a transportation device, followed by picking up of a corresponding number of unwound cores from said transportation device.

6. The system of claim 1 wherein after said transfer device removes said first batch of cores from said respective winding positions, said transfer device transfers a second batch of cores to said respective winding positions.

7. The system of claim 6 wherein said transfer device removes said cores of said second batch from said respective winding positions after winding operation is completed, wherein one of said second batch of cores corresponding to said one of said winding positions corresponding to said incorrect feeding remains unwound and others of said second batch of core of said other winding positions are wound.

8. The system of claim 7 wherein said transfer device, after removing cores of said second batch, delivers a third batch of cores to said respective winding positions, wherein said third batch of cores comprises said one of said first batch of cores that was retained by said transfer device and cores previously picked up by said transfer device.

9. The system of claim 8 wherein said transfer device delivers said one of said first batch of cores previously retained to said one of said winding positions corresponding to said incorrect feeding and said cores previously picked up to said others of said winding positions.

10. A method of operating a machine for simultaneously winding a plurality of coils of wire on a plurality of dynamo-electric machine armature cores in respective winding positions, said method comprising:

monitoring said wire for incorrect feeding;

upon detection of incorrect feeding of said wire in one of said winding positions, controlling said wire to prevent further dispensing of said wire at said one of said winding positions corresponding to said incorrect feeding and terminating winding operation at others of said winding positions; and

removing all of said cores from said respective winding positions.

11. The method defined in claim 10 wherein said controlling comprises withdrawing said wire from flyers associated with said one of said winding positions corresponding to said incorrect feeding and stopping flyer rotations at others of said winding positions.

12. The method defined in claim 10 wherein said terminating comprises cutting and gripping wires leading to respective flyers corresponding to others of said winding positions.

13. The method defined in claim 10 further comprising:

delivering a first batch of cores to said respective winding positions for winding; and

removing each of said first batch of cores from said respective winding positions after winding operation is completed, wherein one of said first batch of cores corresponding to said one of said winding positions corresponding to said incorrect feeding remains unwound and others of said first batch of cores corresponding to others of said winding positions are wound.

14. The method defined in claim 13 further comprising:

retaining said one of said first batch of cores of said one of said winding positions corresponding to said incorrect feeding in a gripping device; and

placing said others of said first batch of cores of others of said winding positions on a transportation device, followed by picking up of a corresponding number of unwound cores from said transportation device.

15. The method defined in claim 13 wherein after said first batch of cores is removed from said respective winding positions, a second batch of cores is transferred to said respective winding positions.

16. The method defined in claim 15 wherein cores of said second batch are removed from said respective winding positions after winding operation is completed, wherein one of said second batch of cores of said one of said winding positions corresponding to said incorrect feeding remains unwound and others of said second batch of cores of said other windings position are wound.

17. The method defined in claim 16 wherein, removal of cores corresponding to said second batch is followed by delivery of a third batch of cores to said respective winding positions, wherein said third batch of cores comprises said one of said first batch of cores from said retaining and cores from said picking up.

18. The method defined in claim 17 wherein, said one of said first batch core from said retaining is delivered to said one of said winding positions corresponding to said incorrect feeding and said cores from said picking up are delivered to others of said winding positions.