US3749327A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thread packaging device with intermediate thread storage means
Assignee: Oerlikon Textile GmbH and Co KG
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Filing: 1971-11-17
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Granted: 1973-07-31
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Expires: 1991-11-17
Abstract
Abstract This invention relates to a machine for spinning thread and winding it into a package, there being an intermediate thread storage means between the spinning means and the winding means. The spinning means is of the known turbine type in which a thread is spun from a supply of individual textile fibers. The spun thread is continuously withdrawn from the turbine by a pair of rolls, one of which is driven, and fed to an intermediate thread storage means, capable of storing a substantial length of thread, from which the thread is drawn by the winding means at a normally slightly faster rate than it is fed to the storage means. There is a tension sensing means between the turbine and the feed rolls which operates, in the event of thread breakage, to reverse the feeding of the thread and move it back into the turbine to effect piecing-up. The intermediate storage means comprises a plurality of rollers freely rotatably mounted in a circle on a stationary disc and receiving a plurality of helical windings of the thread. The winding of the thread on the rollers is effected by a thread guide fixed to a rotatable and axially movable spindle coaxial with the circle of rollers. The spindle is biased in the winding direction by a weight operatively secured thereto, and in the unwinding direction by the package winding means which is normally driven at a uniform speed, but which can be driven at a lesser speed depending on the axial position of said spindle. The winding means comprises a drum which tangentially engages and frictionally drives the package being wound. Said drum is driven by a constant speed motor through a clutch, friction or jaw, which may be intermittently engaged, or by variable speed planetary gearing, whereby the winding speed may be reduced in the event that the amount of thread on the storage device falls below a predetermined amount. This reduction in speed is effected by an electric switch controlled by the axial position of the spindle whereby the amount of thread on the storage device is maintained within substantially fixed limits.
Inventors
- 👤 E Roethke
- 👤 H Guttler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:59
CPC Classifications
B; B65; B65H; B65H51/00; B65H51/20; B65H51/26; D; D01; D01H; D01H4/00; D01H4/48; D01H4/50; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
187 words
A thread packaging device compRising: a thread supply; an intermediate thread storage unit for storing varying lengths of thread passing therethrough from said thread supply; and means for withdrawing thread from said storage unit and winding it into a package; the improvement wherein: said intermediate storage unit comprises a roller device having at least two freely rotatable rollers around which thread can be wound in a plurality of adjacent windings, a winding device (32, 36) which is operatively associated with said roller device and mounted for simultaneous rotary and axial movement relative thereto, torsion means (33, 34, 35) operatively connected to said winding device for biasing said winding device in a winding direction to maintain the thread taut and vary the run-up point (47) of the thread upon the roller device and for simultaneously moving said winding device axially to effect spaced helical windings on the roller device, and a regulating device (20, 21, 39, 42) operatively associated with said winding device and said package winding means for controlling the amount of thread on said storage unit by varying the rate of withdrawal of the thread therefrom.
Claim 2
Dependent Claim
187 words
A thread packaging device compRising: a thread supply; an intermediate thread storage unit for storing varying lengths of thread passing therethrough from said thread supply; and means for withdrawing thread from said storage unit and winding it into a package; the improvement wherein: said intermediate storage unit comprises a roller device having at least two freely rotatable rollers around which thread can be wound in a plurality of adjacent windings, a winding device (32, 36) which is operatively associated with said roller device and mounted for simultaneous rotary and axial movement relative thereto, torsion means (33, 34, 35) operatively connected to said winding device for biasing said winding device in a winding direction to maintain the thread taut and vary the run-up point (47) of the thread upon the roller device and for simultaneously moving said winding device axially to effect spaced helical windings on the roller device, and a regulating device (20, 21, 39, 42) operatively associated with said winding device and said package winding means for controlling the amount of thread on said storage unit by varying the rate of withdrawal of the thread therefrom.
Claim 3
Dependent Claim
18 words
The device according to claim 1 in which the rollers (43) of the storage unit are substantially cylindrical.
Claim 4
Dependent Claim
22 words
The device according to claim 1 in which at least one roller (43) is inclined relative to at least one adjacent roller.
Claim 5
Dependent Claim
24 words
The device according to claim 3 in which the axis of at least one roller (43) is adjustable relative to that of another roller.
Claim 6
Dependent Claim
27 words
The device according to claim 1 in which the roller devcie (40) comprises six rollers (43) arranged substantially in a circle and at substantially identical angular spacing.
Claim 7
Dependent Claim
61 words
Device according to claim 1 in which the winding device for the storage unit comprises a spindle (32) having a screw-threaded engagement with a guiding and supporting member (30), said spindle being coaxial with said roller device (40), a thread guide member (36) fixed to said spindle and having a guide (38) located radially outside a circle encompassing said rollers (43).
Claim 8
Dependent Claim
17 words
The device according to claim 1 in which the torsion means (33, 34, 35) comprises a weight.
Claim 9
Dependent Claim
24 words
The device according to claim 1 in which all rollers (43) of the roller device are rotated solely by the thread (24) wound thereon.
Claim 10
Dependent Claim
70 words
The device according to claim 1 in which the regulating device (20, 21, 39, 42) for the storage unit (15) has at least one element (39, 42) thereof operatively connected to the winding devcie for axial movement therewith whereby the axial position of the winding device controls the rate of withdrawal from the storage unit by changing it when the amount of thread thereon reaches a predetermined maximum or minimum.
Claim 11
Dependent Claim
135 words
The device according to claim 1 in which the means for withdrawing and winding the thread into a package (16) comprises a rotatable drum (18''''''), a constant speed shaft (50), means operatively connecting said drum to said sahft for driving said drum at different speeds (73-79), said means comprising a wheel (75) rotatable on said shaft, a cogwheel (76) fixed to said shaft, at least one planet pinion (74) eccentrically and rotatably mounted on said wheel (75) and meshing with said cogwheel, interior teeth (73) on said drum with which said pinion also meshes, and variable speed means (77, 78, 79) for driving said wheel and controlled by the regulating device for the filling state of said storage unit whereby the speed of said wheel (75) and thereby of said drum (18'''''') may be varied.
Claim 12
Dependent Claim
52 words
The device of claim 10, wherein the variable speed means (77, 78,79) for driving said wheel (75) comprises a friction wheel (79) constantly engaged with said wheel (75), two shafts (77, 78) driven at different speeds and which are alternately engaged with said friction wheel (79) under control of said regulating device.
Claim 13
Dependent Claim
19 words
The device of claim 11 in which the speed of one of said two shafts (77, 78) is zero.
Claim 14
Dependent Claim
86 words
Device according to claim 1 in whIch the means for withdrawing and winding the thread into a package (16) comprises a rotatable drum (18'', 18''''), a constant speed shaft (50), means for coupling said drum to said shaft comprising a clutch which is controlled by the regulating device for the filling state of the storage unit whereby said clutch may be constantly engated or intermittently engaged and disengaged to vary the rate of withdrawal from the storage unit in accordance with the amount of thread thereon.
Claim 15
Dependent Claim
86 words
Device according to claim 13 in which the clutch is a claw clutch comprising teeth on one end of said drum (18''''), a movable clutch member (52'') non-rotatably carried by said shaft (50) biased into normal engagement with said teeth, and means or intermittently disengaging said clutch comprising means (70) on said movable clutch member (52'') and an element (71) movable into the path of said second-named means under control of said regulating means whereby said movable clutch member may be intermittently moved into disengaged position.
Claim 16
Dependent Claim
166 words
Device according to claim 13 in which the clutch is a friction clutch (20''), one element of which is a clutch portion (53) on one end of the drum (18'') and the other element is a complementary member (52) slidably keyed to the shaft (50); means for effecting engagement and disengagement of said clutch comprising a push rod (61), means for reciprocating said push rod comprising a cam rotating at a constant speed, said push rod having a catch (65), there being a two-armed pivoted lever (56) one arm of which is engageable with an annular groove (57) on the slidable clutch member (52'') and the other arm of which has a movable member (59) for engagement with said catch (65), and an electromagnet (60) for moving said member out of the path of said clutch and controlled by the regulating device to cause the clutch to be intermittently engaged and disengaged when the amount of thread on the storage unit falls below a predetermined amount.
Claim 17
Dependent Claim
43 words
The device according to claim 1 in which means are provided between the thread supply and the intermediate storage unit for feeding thread to said storage unit at a lesser rate than that at which the thread is withdrawn from the storage unit.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-30 | 1977-01-29 | 1977-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-30 | 1981-01-29 | 1981-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-30 | 1985-01-29 | 1985-07-31 | $7700.00 | Window Closed / Lapsed |