US3604643A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ring rail lifting method and equipment for spinning machinery
Assignee: Nihon Spindle Manufacturing Co Ltd
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Filing: 1969-08-11
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Granted: 1971-09-14
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Expires: 1989-08-11
Abstract
Abstract A ring rail lifting method and equipment for spinning machinery, comprising a pulse-generating device for generating pulses according to the rotation speed of a frame motor of a spinning machine or the like without receiving power from the frame, and a pulse motor operated by the pulse supplied from said pulsegenerating device; and, said ring rail lifting method and equipment for spinning machinery characterized in that an interlocking mechanism operated by said pulse motor is arranged so as to give vertical motion to the ring rail, and this motion is controlled according to the counted number of the pulses transmitted from said pulse generating device.
Inventors
- 👤 Tsuneo Kimura
- 👤 Moriguchi Tooru
- 👤 Shigeaki Takahashi
- 👤 Katsumasa Nerio Katsumas Nerio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:10
CPC Classifications
D; D01; D01H; D01H1/00; D01H1/14; D01H1/36
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
132 words
A method of controlling the winding of a cop onto a bobbin on a ring-twisting machine, comprising the steps of generating electrical pulses at rates related to the speed at which thread is supplied to said cop, feeding pulses in a sequence of predetermined rates to a pulse motor driving a thread-carrying ring rail along said cop and thereby controlling the velocity at which the ring rail traverses said cop at all stages of winding said cop, counting the number of pulses in each specific traverse, terminating each specific traverse when the predetermined number of pulses corresponding to the specific traverse has been reached, thereby controlling the distance covered by said ring rail in each traverse, and reversing the direction of travel of said ring rail at the end of each traverse.
Claim 2
Independent Claim
132 words
A method of controlling the winding of a cop onto a bobbin on a ring-twisting machine, comprising the steps of generating electrical pulses at rates related to the speed at which thread is supplied to said cop, feeding pulses in a sequence of predetermined rates to a pulse motor driving a thread-carrying ring rail along said cop and thereby controlling the velocity at which the ring rail traverses said cop at all stages of winding said cop, counting the number of pulses in each specific traverse, terminating each specific traverse when the predetermined number of pulses corresponding to the specific traverse has been reached, thereby controlling the distance covered by said ring rail in each traverse, and reversing the direction of travel of said ring rail at the end of each traverse.
Claim 3
Dependent Claim
74 words
The method as defined in claim 1 wherein said rates at which said pulses are generated include a higher rate and a lower rate, and, initially applying said higher rate to said motor in a direction such as to bring said ring rail toward an end of said cop, carrying out several short traverses, alternating in direction at said higher pulse rate, thereby starting the thread carried by said ring rail on said bobbin.
Claim 4
Dependent Claim
41 words
A method as defined in claim 2 wherein said rates at which said pulses are generated further include a highest rate, said highest rate being used for bringing said ring rail to an end suitable for the doffing of said bobbin.
Claim 5
Dependent Claim
48 words
A method as defined in claim 2 wherein the direction of travel of said ring rail is vertical, and following starting of the thread on said bobbin, upward traverses are carried out at said higher pulse rate and downward traverses are carried out at said lower pulse rate.
Claim 6
Dependent Claim
18 words
A method as defined in claim 2 wherein said higher pulse rate is twice said lower pulse rate.
Claim 7
Dependent Claim
39 words
A method as defined in claim 1 wherein the length of each traverse, the point at which each traverse is ended, and the number of traverses are predetermined as a means for controlling the shape of the completed cop.
Claim 8
Independent Claim
130 words
An apparatus for winding a cop onto a bobbin on a ring-twisting machine, comprising means for generating electrical pulses at rates related to the speed at which thread is supplied to said cop, a pulse motor operated by said pulses at rates corresponding to said pulse rates, a thread-carrying ring rail driven by said pulse motor, a bobbin on which thread is wound in a sequence of traverses by said ring rail onto a cop, first means for counting the pulses to said motor in each traverse, second means for counting the traverses, and means for regulating the length of each traverse and the number of traverses in accordance with a predetermined pattern, whereby the length of each traverse may be controlled to produce a cop of a desired shape.
Claim 9
Independent Claim
130 words
An apparatus for winding a cop onto a bobbin on a ring-twisting machine, comprising means for generating electrical pulses at rates related to the speed at which thread is supplied to said cop, a pulse motor operated by said pulses at rates corresponding to said pulse rates, a thread-carrying ring rail driven by said pulse motor, a bobbin on which thread is wound in a sequence of traverses by said ring rail onto a cop, first means for counting the pulses to said motor in each traverse, second means for counting the traverses, and means for regulating the length of each traverse and the number of traverses in accordance with a predetermined pattern, whereby the length of each traverse may be controlled to produce a cop of a desired shape.
Claim 10
Dependent Claim
41 words
Apparatus as defined in claim 7, further comprising a threaded rod axially movable by said pulse motor, a lifting rod supporting said ring rail, and hydraulic means for positioning said ring rail in accordance with the position of said threaded rod.
Claim 11
Dependent Claim
31 words
Apparatus as defined in claim 8, further comprising feedback means for determining and correcting the position of said ring rail and lifting rod relative to the position of said threaded rod.
Claim 12
Dependent Claim
223 words
Apparatus as defined in claim 9 wherein said feedback means includes a first flexible line, one end of which is operatively connected to said ring rail, a second flexible line operatively connected to one end of said threaded rod, a hydraulic cylinder having a piston operatively connected to the other end of said first flexible line, a third flexible line operatively connected at one end to said piston, a first disc to the rim of which the other end of said second flexible line is fastened, a second disc to which the other end of said third flexible line is fastened, the discs being coaxial, rigid with respect to each other, and so placed that movement of said lines causes rotation of said discs, a shaft on which said discs are mounted, a yoke in which said shaft can be displaced, the displacement corresponding to error in positioning of said lifting rod relative to the position of said threaded rod, and a changeover valve connected to said shaft for sensing the position of said shaft within said yoke as a means of controlling the position of said piston of said hydraulic cylinder and thus the position of said ring rail, the feedback means and hydraulic system thereby amplifying the power output of the pulse motor to provide positive positioning of the ring rail.
Claim 13
Dependent Claim
168 words
Apparatus as defined in claim 7 wherein said counting means include a guide receiving said threaded rod in a lengthwise direction, first and second slides mounted in said guide so as to be movable in said lengthwise direction, electrical contacts mounted on said slides and on said guide and connected with said pulse motor, the contacts being activatable by said threaded rod, the distance between said contacts on said first slide serving to count the pulses which control the distance traversed by said ring rail in a first direction, and the position of one of said contacts mounted on said second slide serving to control the distance traversed by said ring rail in the opposite direction, said slides being displaced by a predetermined amount after each pair of oppositely directed traverses, and a contact mounted on said guide activatable to terminate the action of the apparatus when the total of said displacements reaches a predetermined value, thus providing for replacement of the cop-laden bobbin with a fresh bobbin.
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) | 1974-09-13 | 1975-03-15 | 1975-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-13 | 1979-03-15 | 1979-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-13 | 1983-03-15 | 1983-09-14 | $7700.00 | Window Closed / Lapsed |