Patent US3578034A successfully refreshed from Google Patents.
US3578034A
Expired / Lapsed
US
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Apparatus for automatically winding concentric dynamoelectric machine coils
Assignee: Fort Wayne Tool and Die Inc
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Filing: 1969-03-27
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Granted: 1971-05-11
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Expires: 1989-03-27
Abstract
Abstract Apparatus for automatically winding a set of at least two concentric dynamoelectric machine coils upon a coil form having at least two progressively small steps. A flyer for winding wire on the coil form steps is rotatably supported by a block, and a two-speed electric motor is connected to rotate the flyer. A slide supports the block and flyer for longitudinal movement parallel with the axis of the flyer between forward and rear positions, and latches selectively retain the block and flyer at the forward and at least one intermediate position thereby to locate the flyer in winding relationship with each of the coil form steps. The slide with the block and flyer supported thereon is mounted for longitudinal movement thereby to traverse the flyer across the coil form steps. In one embodiment the slide is oscillated by the motor thereby to level-wind the wire on each of the coil form steps; and in another embodiment the slide is continuously moved from a forward to a rear position by a lead screw driven by the motor. A control circuit is provided which automatically actuates the motor to its low speed a predetermined number of turns in advance of completion of a given coil; and which upon completion of the coil actuates a latch to permit the block and flyer to move rearwardly by one incremental step when the flyer is in a predetermined rotational position with respect to the coil form, thereby to move the flyer into winding relationship with the next coil form step, and actuates the motor to its high speed to initiate winding of the next coil. The motor is preferably a multiphase, two-speed, constant torque induction motor, thus providing very rapid acceleration and deceleration between its high and low speeds, and the latches are preferably electromagnetically actuated from a source of substantially ripple-free direct current, thus providing nearly instantaneous stepping of the flyer, to the end that a set of concentric coils may be automatically wound at high speed without stopping the flyer and with the connections between adjacent coils accurately located.
Inventors
- 👤 Robert J Eminger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:00
CPC Classifications
H; H02; H02K; H02K15/00; H02K15/04; H02K15/043; H02K15/0431
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
476 words
Apparatus for automatically winding a set of at least two concentric dynamoelectric machine coils comprising: a coil form having spaced opposite ends with at least two progressively smaller steps extending therebetween: a flyer mounted on a shaft for winding a wire on said coil form steps to form said coils; first means for rotatably supporting said shaft; an electric motor providing at least two speeds coupled to said shaft for rotating the same and said flyer; a control circuit including first control means for selectively energizing said motor for high and low speed operation; second means for supporting said first support means for longitudinal movement parallel with the axis of said shaft; first means on said second support means and operatively connected to said first support means for selectively sequentially moving said first support means, shaft and flyer from a forward to a rear position in at least one incremental step thereby respectively to position said flyer in winding relationship with said coil form steps; second means operatively coupling said motor to said second support means for moving the same and said first support means, shaft and flyer longitudinally parallel with the axis of said shaft thereby to traverse said flyer with respect to said coil form; means for selectively positioning said first support means, shaft and flyer at an initial location with said first sUpport means in said forward position and with said flyer in winding relationship with a first coil form step adjacent one end of said coil form; means for counting the number of revolutions of said shaft and flyer; means for initially actuating said first control means to energize said motor for high speed operation thereby to wind a first coil on said first coil step at high speed; said control circuit further including second control means responsive to said counting means for actuating said first control means to energize said motor for low speed operation in response to winding a first predetermined number of turns of said first coil, and third control means responsive to said counting means for actuating said first moving means to move said first support means, shaft and flyer by a first said incremental step from said forward position to a second position with said flyer located in winding relationship with a second coil form step adjacent said first coil form step in response to a second coil form step adjacent said first coil form step in response to a second predetermined number of turns of said first coil greater than said first number corresponding to completion of said first coil; said third control means being coupled to said first control means and actuating the same to energize said motor for high speed operation in response to said second number thereby to initiate winding of a second coil on said second coil form step at high speed.
Claim 2
Dependent Claim
476 words
Apparatus for automatically winding a set of at least two concentric dynamoelectric machine coils comprising: a coil form having spaced opposite ends with at least two progressively smaller steps extending therebetween: a flyer mounted on a shaft for winding a wire on said coil form steps to form said coils; first means for rotatably supporting said shaft; an electric motor providing at least two speeds coupled to said shaft for rotating the same and said flyer; a control circuit including first control means for selectively energizing said motor for high and low speed operation; second means for supporting said first support means for longitudinal movement parallel with the axis of said shaft; first means on said second support means and operatively connected to said first support means for selectively sequentially moving said first support means, shaft and flyer from a forward to a rear position in at least one incremental step thereby respectively to position said flyer in winding relationship with said coil form steps; second means operatively coupling said motor to said second support means for moving the same and said first support means, shaft and flyer longitudinally parallel with the axis of said shaft thereby to traverse said flyer with respect to said coil form; means for selectively positioning said first support means, shaft and flyer at an initial location with said first sUpport means in said forward position and with said flyer in winding relationship with a first coil form step adjacent one end of said coil form; means for counting the number of revolutions of said shaft and flyer; means for initially actuating said first control means to energize said motor for high speed operation thereby to wind a first coil on said first coil step at high speed; said control circuit further including second control means responsive to said counting means for actuating said first control means to energize said motor for low speed operation in response to winding a first predetermined number of turns of said first coil, and third control means responsive to said counting means for actuating said first moving means to move said first support means, shaft and flyer by a first said incremental step from said forward position to a second position with said flyer located in winding relationship with a second coil form step adjacent said first coil form step in response to a second coil form step adjacent said first coil form step in response to a second predetermined number of turns of said first coil greater than said first number corresponding to completion of said first coil; said third control means being coupled to said first control means and actuating the same to energize said motor for high speed operation in response to said second number thereby to initiate winding of a second coil on said second coil form step at high speed.
Claim 3
Dependent Claim
40 words
The apparatus of claim 1 wherein said motor is a multiphase, alternating current induction motor thereby providing rapid deceleration from said high to said low speed, said motor providing substantially constant speed operation of said flyer at said low speed.
Claim 4
Dependent Claim
14 words
The apparatus of claim 2 wherein said motor is of the constant torque type.
Claim 5
Dependent Claim
94 words
The apparatus of claim 1 wherein said first moving means includes means for normally biasing said first support means toward said rear position, selectively actuable latching means for retaining said first support means at said forward position and at least at said second position, and means including electromagnetic means for actuating said latching means thereby permitting said biasing means to move said first support means rearwardly by one said incremental step to the next position, said third control means including a source of electric current and means for selectively energizing said electromagnetic means thereby.
Claim 6
Dependent Claim
29 words
The apparatus of claim 4 wherein said electromagnetic means includes at least one reed relay, and wherein said source provides substantially ripple-free direct current for energizing said reed relay.
Claim 7
Dependent Claim
73 words
The apparatus of claim 5 wherein said actuating means includes a pneumatic cylinder operatively connected to said latching means and having an air line for supplying a actuating air thereto, said electromagnetic means further including a solenoid valve in said air line, said valve being energized from a source of direct current, and further comprising means for filtering the air supplied to said solenoid valve and cylinder to remove oil and moisture therefrom.
Claim 8
Dependent Claim
86 words
The apparatus of claim 4 wherein said control circuit includes fourth control means operatively driven by said motor in synchronism with said shaft and flyer for sensing a predetermined rotational position of said flyer with respect to said coil form, said third control means including means responsive to said fourth control for energizing said electromagnetic means whereby said first support means, shaft and flyer are moved to said second position in response to said second number only when said flyer is in said predetermined rotational position.
Claim 9
Dependent Claim
34 words
The apparatus of claim 7 wherein said fourth control means includes a commutator and cooperative contacts which complete a circuit for energizing said electromagnetic means when said flyer is in said predetermined rotational position.
Claim 10
Dependent Claim
140 words
The apparatus of claim 1 wherein said control circuit includes clutch means for selectively starting and sTopping said shaft and flyer, fourth control means responsive to said counting means for actuating said clutch means to stop said shaft in response to winding a predetermined number of turns of the last coil of said set on the coil form step adjacent the other end of said coil form, said fourth control means actuating said positioning means to return said first support means, shaft and flyer to said initial location, and fifth control means for actuating said clutch means and first control means to start said shaft and to energize said motor at high speed in response to return of said first support means to said initial location thereby to initiate winding of a new set of coils on said coil form.
Claim 11
Dependent Claim
77 words
The apparatus of claim 9 wherein said control circuit includes sixth control means operatively driven by said motor in synchronism with said shaft and flyer for sensing a predetermined rotational position of said flyer with respect to said coil form, said fourth control means including means responsive to said sixth control means for actuating said clutch means to stop said shaft in response to said last-named number only when said flyer is in said predetermined rotational position.
Claim 12
Dependent Claim
34 words
The apparatus of claim 10 wherein said sixth control means includes a commutator and cooperative contacts which complete a circuit for actuating said clutch means when said flyer is in said predetermined rotational position.
Claim 13
Dependent Claim
69 words
The apparatus of claim 9 wherein said motor is reversible, said control circuit including sixth control means for selectively reversing the direction of rotation of said motor, said initial actuating means actuating said sixth control means for operation of said motor in one direction, said fifth control means actuating said sixth control means to reverse said motor whereby said new set of coils is wound in the opposite direction.
Claim 14
Dependent Claim
160 words
The apparatus of claim 9 further comprising at least a second coil form identical to said first-named coil form and radially spaced therefrom, means for selectively indexing said coil forms between at least winding and unloading stations, each of said coil forms being collapsible to permit removal of the set of coils wound thereon, means at said unloading station for selectively actuating the respective coil forms between collapsed and expanded position; said control circuit including sixth control means for actuating said indexing means thereby to move one of coil forms to said unloading station and another coil form to said winding station in response to one of said fourth and fifth control means, and seventh control means including means for inhibiting actuation of said indexing means when said coil form at said unloading station is in its collapsed position and means for inhibiting said first control means when said coil forms are removed from said winding and unloading stations, respectively.
Claim 15
Dependent Claim
256 words
The apparatus of claim 13 wherein each of said coil forms includes means for receiving a length of adhesive tape for retaining the turns of the coils of a set, each of said coil forms having a vacuum conduit communicating with said receiving means, and further comprising a supply of adhesive tape, means at a station other than said winding station for selectively withdrawing a predetermined length of tape from said supply and positioning the same in said receiving means of the respective coil form, a vacuum line for applying a vacuum to said conduits thereby to retain the length of tape in the respective receiving means, means for inhibiting application of vacuum to the coil form at said unloading station, and valve means in said vacuum line for selectively opening and closing the same; said control circuit including eighth control means including means for actuating said valve means to close said vacuum line and for actuating said withdrawing means to position a length of tape in the receiving means of the respective coil form, means for inhibiting actuation of said valve and withdrawing means prior to winding at least a part of the coIls of the set being wound at the coil form at said winding station, means for actuating said valve means to open said vacuum line in response to positioning a length of tape in the respective receiving means, and means for inhibiting actuation of said winding means prior to withdrawal and positioning of said length of tape in the respective receiving means.
Claim 16
Dependent Claim
38 words
The apparatus of claim 9 further comprising means for selectively rotationally positioning said shaft and flyer to have a predetermined rotational relationship with said coil form; one of forth and fifth control means actuating said last-named positioning means.
Claim 17
Dependent Claim
423 words
The apparatus of claim 1 wherein said motor is multiphase, constant torque, alternating current induction motor thereby providing rapid deceleration from said high to said low speed; said first moving means including means for normally biasing said first support means toward said rear position, selectively actuable latching means for retaining said first support means at said forward position and at least at a second position spaced from said first position by said first incremental step, and means including a reed relay for actuating said latching means thereby permitting said biasing means to move said first support means rearwardly by one said incremental step to the next position; and further comprising a source of substantially ripple free direct current; said control circuit including fourth control means operatively driven by said shaft in synchronism with said shaft and flyer for sensing a predetermined stepping rotational position of said flyer with respect to said coil form, said third control means including means responsive to both said counting means and to said fourth control means for energizing said reed relay from said source whereby said first support means, shaft and flyer are moved to said second position in response to said second number only when said flyer is in said predetermined stepping rotational position; said control circuit including clutch means for selectively starting and stopping said shaft and flyer, said clutch means including a second reed relay for actuating the same, fifth control means operatively driven by said motor in synchronism with said shaft and flyer for sensing a predetermined stopping rotational position of said flyer for sensing a predetermined stopping rotational position of said flyer with respect to said coil form, sixth control means responsive to both said counting means and to said fifth control means for energizing said second reed relay from said source thereby to actuate said clutch means to stop said shaft in response to winding a predetermined number of turns of the last coil of said set on the coil form step adjacent the other end of the coil form when said flyer is in said predetermined stopping rotational position; said sixth control means actuating said positioning means to return said first support means, shaft and flyer to said initial location, and seventh control means for actuating said fourth and first control means to start said shaft and to energize said motor at high speed in response to return of said first support means to said initial location thereby to initiate winding of a new set of coils on said coil form.
Claim 18
Dependent Claim
147 words
The apparatus of claim 1 wherein said coil form includes at least one step having a first axial length and at least one other step having a second axial length, said second coupling means including means for oscillating said second support means and said first support means, shaft and flyer with first and second throws respectively generally corresponding to said first and second lengths thereby to level-wind coils on said steps, and means for selectively shifting said oscillating means between said first and second throws; said third control means including means for actuating said shifting means to shift said coupling means from said first to said second throws with movement of said first support means, shaft and flyer by a said incremental step from winding relatIonship with a coil form step having said first length to winding relationship with a coil form step having said second length.
Claim 19
Dependent Claim
356 words
The apparatus of claim 1 wherein said second support means is axially movable between forward and rear positions, said second support means being in said forward position when said first support means, shaft and flyer are at said initial location, said first support means, shaft and flyer are at said initial location shaft and flyer having a final location with said first and second support means respectively in said rear position thereof and with said flyer in winding relationship with a last coil form step adjacent the other end of said coil form; said second moving means including a lead screw, drive means for operatively connecting said lead screw to said motor, and means connected to said second support means for selectively engaging and disengaging said lead screw, said lead screw with said engaging means engaged therewith continuously moving said second support means from said forward to said rear position thereof, thereby moving said first support means, shaft and flyer to traverse said flyer from one end to the other end of said coil form; said control circuit including fourth control means responsive to said counting means for actuating said engaging means to disengage said lead screw in response to winding a predetermined number of turns of the last coil of said set on said last coil form step; said positioning means including third means for selectively moving said second support means and said first support means, shaft and flyer from said rear position to said forward position of said second support means, said first moving means being arranged selectively to move said first support means, shaft and flyer from said rear position to said forward position of said first support means, said fourth control means actuating said third moving means to return said second support means to said forward position; said control circuit including fifth control means for actuating said engaging means to reengage the same with said lead screw when at least said second support means is in said forward position, one of said fourth and fifth control means actuating said first moving means to return said first support means to said forward position.
Claim 20
Dependent Claim
188 words
The apparatus of claim 18 wherein said drive means include means for selectively connecting said lead screw to said motor, said fourth control means including means for actuating said connecting means to disconnect said lead screw from said motor thereby to stop said lead screw; said control circuit including sixth control means for sensing a predetermined rotational position of said lead screw with respect to said engaging means, and means for selectively rotating said lead screw, independently of said drive means; said fourth control means actuating said rotating means to rotate said lead screw is in said position, said fifth control means actuating said engaging means to reengage said lead screw in response to said sixth control means whereby said lead screw is reengaged only when the same is in said position; said control circuit including seventh control means for actuating said drive means to reconnect said lead screw to said motor in response to reengagement of said engaging means with said lead screw and return of said first support means to said forward position thereby to initiate winding a new set of coils on said coil form.
Claim 21
Dependent Claim
46 words
The apparatus of claim 19 wherein said sensing means includes a commutator operatively driven by said lead screw and cooperating contacts which complete a circuit when said lead screw is in said predetermined rotational position thereby to actuate said engaging means to reengage sad lead screw.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-10 | 1974-11-09 | 1975-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-10 | 1978-11-09 | 1979-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-10 | 1982-11-09 | 1983-05-11 | $7700.00 | Window Closed / Lapsed |