US3685755A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Winding machine drive and tension control system
Assignee: R H BOULIGNY Inc
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Filing: 1970-11-10
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Granted: 1972-08-22
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Expires: 1990-11-10
Abstract
Abstract A drive and tension control system is provided for a winding machine of the precision type, the drive being fluid-actuated and the actuating fluid being supplied under a modulating influence controlled from the sensing of take-up tension in a manner that maintains such tension substantially constant by compensative regulation of spindle speed. The modulating influence is also specially arranged to act selectively so that the spindle assumes an idling speed whenever an end break releases take-up tension, and so that it stalls harmlessly whenever the end being wound is held against winding.
Inventors
- 👤 Charles S W King
- 👤 John H Pierce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:28
CPC Classifications
B; B65; B65H; B65H59/00; B65H59/38; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
235 words
In a winding machine of the type incorporating a driven winding spindle and a traverse mechanism operated at a fixed ratio to the spindle speed for directing take-up of a running strand onto a core carried by the spindle to build a cross-wound strand package about said core, the improvement which comprises a fluid-actuated motor connected for driving said spindle and for operating said traverse mechanism at said fixed ratio, means for supplying fluid under pressure to said motor for actuating the same, means interposed in said supplying means for modulating the pressure under which actuating fluid is supplied to said motor, and means sensing the take-up tension on said running strand and controlling said modulating means from such sensing for causing said motor to drive said spindle and operate said traverse mechanism so that the take-up tension on said running strand is maintained substantially constant as a strand package is built, said spindle and a traverse cam for said traverse mechanism being mounted for rotation about fixed axes, said traverse mechanism also including a pressure roll riding a strand package as it is built on said spindle and under which the strand take-up is delivered to said package, and said pressure roll being carried by means pivoted at the axis of said traverse cam and being arranged so that its riding pressure lessens as the diameter of said package increases during the winding operation.
Claim 2
Dependent Claim
235 words
In a winding machine of the type incorporating a driven winding spindle and a traverse mechanism operated at a fixed ratio to the spindle speed for directing take-up of a running strand onto a core carried by the spindle to build a cross-wound strand package about said core, the improvement which comprises a fluid-actuated motor connected for driving said spindle and for operating said traverse mechanism at said fixed ratio, means for supplying fluid under pressure to said motor for actuating the same, means interposed in said supplying means for modulating the pressure under which actuating fluid is supplied to said motor, and means sensing the take-up tension on said running strand and controlling said modulating means from such sensing for causing said motor to drive said spindle and operate said traverse mechanism so that the take-up tension on said running strand is maintained substantially constant as a strand package is built, said spindle and a traverse cam for said traverse mechanism being mounted for rotation about fixed axes, said traverse mechanism also including a pressure roll riding a strand package as it is built on said spindle and under which the strand take-up is delivered to said package, and said pressure roll being carried by means pivoted at the axis of said traverse cam and being arranged so that its riding pressure lessens as the diameter of said package increases during the winding operation.
Claim 3
Dependent Claim
24 words
In a winding machine, the improvement defined in claim 1 and further characterized in that the fluid supplied for actuating said motor is air.
Claim 4
Dependent Claim
197 words
In a winding machine of the type incorporating a driven winding spindle and a traverse mechanism operated at a fixed ratio to the spindle speed for directing take-up of a running strand onto a core carried by the spindle to build a strand package about said core, the improvement which comprises a fluid-actuated motor connected for driving said spindle and for operating said traverse mechanism at said fixed ratio, means for supplying fluid under pressure to said motor for actuating the same, means interposed in said supplying means for modulating the pressure under which actuating fluid is supplied to said motor, and means sensing the take-up tension on said running strand and acting on said modulating means to control the same from such sensing, said modulating means in turn acting selectively under the control of said sensing means to modulate the actuating supply pressure to said motor for causing said motor to maintain the take-up tension on said running strand substantially constant as a strand package is being built, to assume an idling speed whenever a strand break occurs, and to stall harmlessly whenever the strand is held against running until the strand is allowed to run.
Claim 5
Dependent Claim
197 words
In a winding machine of the type incorporating a driven winding spindle and a traverse mechanism operated at a fixed ratio to the spindle speed for directing take-up of a running strand onto a core carried by the spindle to build a strand package about said core, the improvement which comprises a fluid-actuated motor connected for driving said spindle and for operating said traverse mechanism at said fixed ratio, means for supplying fluid under pressure to said motor for actuating the same, means interposed in said supplying means for modulating the pressure under which actuating fluid is supplied to said motor, and means sensing the take-up tension on said running strand and acting on said modulating means to control the same from such sensing, said modulating means in turn acting selectively under the control of said sensing means to modulate the actuating supply pressure to said motor for causing said motor to maintain the take-up tension on said running strand substantially constant as a strand package is being built, to assume an idling speed whenever a strand break occurs, and to stall harmlessly whenever the strand is held against running until the strand is allowed to run.
Claim 6
Dependent Claim
92 words
In a winding machine, the improvement defined in claim 3 and further characterized in that said modulating means comprises a valve body formed with a channel and fitted with a rotatable shaft intersecting said channel in transverse relation, said shaft having a cross section at least equal to that of said channel and being notched transversely in relation to the point of intersection with said channel, means for directing actuating fluid through said channel to said motor, and means causing rotative positioning of said shaft under the contRol of said sensing means.
Claim 7
Dependent Claim
83 words
In a winding machine, the improvement defined in claim 4 and further characterized in that said channel has a circular cross section, in that said shaft is cylindrical and has a cross section exceeding that of said channel, in that said shaft intersects said channel in offset relation so as to fall slightly short of crossing the full channel diameter, and in that the notched configuration in said shaft is V-shaped to a depth and from a width equal to the channel diameter.
Claim 8
Dependent Claim
77 words
In a winding machine, the improvement defined in claim 4 and further characterized in that said sensing means is a dancer arm fixed on said shaft for pivoting therewith and carrying a roll at its extending end about which said running strand is looped prior to take-up, and in that said last mentioned means imposes a bias on said shaft and dancer arm tending to pivot the same in opposition to take-up tension on said running strand.
Claim 9
Dependent Claim
53 words
In a winding machine, the improvement defined in claim 6 and further characterized in that said last mentioned means comprises a fixed cylinder housing a piston, means imposing a level fluid pressure on said piston in said cylinder, and means connecting said piston for imposing said bias on said shaft and dancer arm.
Claim 10
Dependent Claim
99 words
In a winding machine, the improvement defined in claim 4 and further characterized in that said modulating means valve body is further formed with a second channel, and with a bore extending laterally with respect to said first and second channels and into which said channels open in spaced relation, and in that means is provided for supplying actuating fluid to said valve body through said second channel and a valve stem is disposed in said bore in relation to means for shifting said stem axially therein for selectively opening and blocking communication between said first and second channels.
Claim 11
Dependent Claim
79 words
In a winding machine, the improvement defined in claim 8 and further characterized in that the means for selectively shifting said stem in said bore comprises spring means housed adjacent one end of said bore for biasing said stem toward the other end, a camshaft rotatably housed in a second valve body bore transversely intersecting said first mentioned bore adjacent its other end, and means connected with said camshaft exteriorily of said valve body for selectively rotating the same.
Claim 12
Dependent Claim
90 words
In a winding machine, the improvement defined in claim 9 and further characterized in that said winding spindle and a traverse cam for said traverse mechanism are mounted for rotation about fixed axes and said traverse mechanism includes a strand package pressure roll carried by means pivoted at the axis of said traverse cam, and in that said means connected with said camshaft comprises a yoke member disposed in the pivoting path of said pressure roll carrying means as the same is lifted away from or lowered to operating position.
Claim 13
Dependent Claim
102 words
In a winding machine, the improvement defined in claim 10 and further characterized in that said winding spindle is equipped with expandible chucking means normally maintained in expanded condition, in that means are provided for collapsing said chucking means to allow removal of a strand package from said spindle, and in that said valve body is additionally formed with a third channel opening into said first mentioned valve body bore and through which actuating fluid supplied to said valve body is diverted to actuate said chuck collapsing means when said stem is shifted to block communication between said first and second channels.
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) | 1975-08-22 | 1976-02-21 | 1976-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-22 | 1980-02-21 | 1980-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-22 | 1984-02-21 | 1984-08-22 | $7700.00 | Window Closed / Lapsed |