US3712451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Empty bobbin supply devices for a bobbin changer for spindle type spinning machines
Assignee: Heberlein Hispano SA
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Filing: 1971-03-09
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Granted: 1973-01-23
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Expires: 1991-03-09
Abstract
Abstract An endless conveyor is arranged along each spindle bank and bears gripping hooks spaced regularly at intervals corresponding to those between the spindles. Each of the hooks can cooperate with a take-up head provided at the upper end of each bobbin. A loading station is arranged to present the take-up head of an empty bobbin to each gripping hook passing it. The empty bobbins are stacked horizontally in a reserve with the take-up heads randomly directed. A distributing device brings the empty bobbins successively from the reserve to a tilting station where the bobbins are represented horizontally. The tilting station has at its two ends, two steps arranged to retain temporarily one empty bobbin by its take-up head, so that all the bobbins leave with their take-up heads upwards. A conveyor belt carries the vertical bobbins towards the loading station of the endless conveyor.
Inventors
- 👤 L Vignon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:15
CPC Classifications
B; B65; B65H; B65H67/00; B65H67/06; B65H67/061; B65H67/068; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
252 words
Empty bobbin supply device for a bobbin changer for a spindle type spinning machine having at least one spindle bank, said changer comprising an endless conveyor arranged along each said spindle bAnk and bearing gripping hooks regularly spaced at intervals corresponding to those of the spindles of the spindle bank, each of said gripping hooks being arranged to be borne by said conveyor into engagement with a take-up head provided at the upper end of each bobbin, and a loading station arranged adjacent said conveyor so as to present the take-up head of an empty bobbin to each gripping hook passing at its level, said supply device comprising in combination : a hopper providing a reserve in which the empty bobbins are stacked horizontally without discrimination as to the side where their take-up heads occur, a distributing device arranged to take the empty bobbins successively from said reserve, a tilting station to which the bobbins are presented horizontally by said distributing device, said tilting station being equipped, respectively at its two ends, with two stops arranged in the two possible paths of the take-up heads through the tilting station so as to retain one empty bobbin temporarily by its take-up head, so that all the empty bobbins leaving said tilting station are in an erect position in which they present their take-up heads upwardly, and a transfer device adapted to convey the empty bobbins which have left the tilting station towards the loading station of the endless conveyor in said erect position.
Claim 2
Dependent Claim
252 words
Empty bobbin supply device for a bobbin changer for a spindle type spinning machine having at least one spindle bank, said changer comprising an endless conveyor arranged along each said spindle bAnk and bearing gripping hooks regularly spaced at intervals corresponding to those of the spindles of the spindle bank, each of said gripping hooks being arranged to be borne by said conveyor into engagement with a take-up head provided at the upper end of each bobbin, and a loading station arranged adjacent said conveyor so as to present the take-up head of an empty bobbin to each gripping hook passing at its level, said supply device comprising in combination : a hopper providing a reserve in which the empty bobbins are stacked horizontally without discrimination as to the side where their take-up heads occur, a distributing device arranged to take the empty bobbins successively from said reserve, a tilting station to which the bobbins are presented horizontally by said distributing device, said tilting station being equipped, respectively at its two ends, with two stops arranged in the two possible paths of the take-up heads through the tilting station so as to retain one empty bobbin temporarily by its take-up head, so that all the empty bobbins leaving said tilting station are in an erect position in which they present their take-up heads upwardly, and a transfer device adapted to convey the empty bobbins which have left the tilting station towards the loading station of the endless conveyor in said erect position.
Claim 3
Dependent Claim
51 words
Supply device according to claim 1, comprising two centering ramps situated respectively at the two ends of the tilting station, whereby the empty bobbins presented to the tilting station are positioned axially, said ramps cooperating with the two ends of each empty bobbin to bring said bobbins into correct axial position.
Claim 4
Dependent Claim
96 words
Supply device according to claim 1, wherein the distributing device is constituted by a scoop elevator, the ascending run of said elevator constituting one lateral wall of the reserve, and two extraction ramps are arranged at the two ends of the tilting station, said two extraction ramps cooperating with the two ends of each empty bobbin, the upper part of each of said extraction ramps being adjacent to the path of the band of the scoop elevator, whilst the lower parts of said two extraction ramps occur outside the path of the scoops of said elevator.
Claim 5
Dependent Claim
26 words
Supply device according to claim 3, including two elastic members arranged upstream of the tilting station to maintain the empty bobbins on the two extraction ramps.
Claim 6
Dependent Claim
61 words
Supply device according to claim 4, wherein the most upstream elastic member is constituted by two elastic blades oriented at about 45* which each extend up to above the tilting station, and the least upstream elastic member is constituted by two substantially vertical elastic blades which are each slightly bent towards the extraction ramps at the level of the tilting station.
Claim 7
Dependent Claim
62 words
Supply device according to claim 1, wherein the transfer device is constituted by a transporter belt provided with vertical cavities adapted to receive an empty bobbin, the axis of said transporter belt being aligned with the outer run of the endless conveyor, whilst one of the ends of said transporter belt is arranged below one of the ends of said endless conveyor.
Claim 8
Dependent Claim
132 words
Supply device according to claim 1 and adapted to cooperate with a bobbin changer in which the endless conveyor is actuated by a continuous movement on the operation of hooking the empty bobbins by the gripping hooks, wherein the distributing device is driven by first motor means coupled to a first detector member which stops the first motor means when an empty bobbin has tilted into the tilting station, and the transfer device is driven by second motor means servocoupled to a second detector member which stops said second motor means when an empty bobbin is brought to the level of the loading station, and which restores into operation the second motor means and the first motor means when the empty bobbin has been hooked by a gripping hook of the conveyor.
Claim 9
Dependent Claim
49 words
Supply device according to claim 7, wherein a third detector member is arranged Below the tilting station to stop the first and second motor means and to stop also the third motor means which drive the endless conveyor, when an empty bobbin occurs accidentally blocked below said tilting station.
Claim 10
Dependent Claim
159 words
Supply device according to claim 1, adapted for a double-bank spindle type spinning machine with spindles arranged symmetrically with respect to a longitudinal plane of the machine, wherein said supply device comprises a common reserve, two distributing devices arranged symmetrically on both sides on this common reserve, two tilting stations, and two transfer devices arranged symmetrically with respect to said common reserve and ending at two loading stations of the endless conveyors arranged along each of the two abovesaid spindle banks, the assembly formed by the common reserve, the two distributing devices, the two tilting stations and the two transfer devices constituting an assembly independent of the spinning machine, said assembly being mounted movably under the action of control means to be displaceable between an active position, for which the two loading stations occur exactly on the path of the two endless conveyors, and a resting position for which the loading stations are withdrawn with respect to said path.
Claim 11
Dependent Claim
58 words
Supply device according to claim 9, wherein the bottom of the common reserve has the form of an inverted V widely open downwardly, and a fourth detector is provided to indicate through an alarm, that the common reserve no longer contains a given number of empty bobbins and that it is then necessary to proceed with its refilling.
Claim 12
Dependent Claim
159 words
Supply device according to claim 8, adapted for a double-bank spindle type spinning machine with spindles arranged symmetrically with respect to a longitudinal plane of the machine, wherein said supply device comprises a common reserve, two distributing devices arranged symmetrically on both sides on this common reserve, two tilting stations, and two transfer devices arranged symmetrically with respect to said common reserve and ending at two loading stations of the endless conveyors arranged along each of the two abovesaid spindle banks, the assembly formed by the common reserve, the two distributing devices, the two tilting stations and the two transfer devices constituting an assembly independent of the spinning machine, said assembly being mounted movably under the action of control means to be displaceable between an active position, for which the two loading stations occur exactly on the path of the two endless conveyors, and a resting position for which the loading stations are withdrawn with respect to said path.
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) | 1976-01-23 | 1976-07-24 | 1977-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-23 | 1980-07-24 | 1981-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-23 | 1984-07-24 | 1985-01-23 | $7700.00 | Window Closed / Lapsed |