Patent US3920193A successfully refreshed from Google Patents.
US3920193A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Winding apparatus with automatic changing of tubes or the like
Assignee: Maschinenfabrik Rieter AG
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Filing: 1974-03-04
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Granted: 1975-11-18
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Expires: 1994-03-04
Abstract
Abstract A winding device for automatically changing tubes for taking-up endless threads or the like, comprising a thread traversing device for generating thread winding wraps, a thread deflecting device for lifting the thread off the thread traversing device and a thread holding device provided with a thread guiding device for guiding the thread in its lifted-off position during change of the bobbin tube. At least two driven bobbin chucks are capable of being alternately brought into a bobbin- or tube change position respectively, each chuck being capable of taking-up or supporting one tube. A thread catching and cutting zone is arranged adjacent to one end of the tube and rotates together with the tube. The thread holding device is arranged in such a manner that the thread lifted off the thread traversing device is guided thereby at the immediate vicinity of the thread catching and cutting zone. According to the invention, a thread shifting device is provided for the purpose of shifting the thread guided by the thread holding device in a first shifting phase from its position at the immediate vicinity of the thread catching and cutting zone through such zone onto the end portion of the tube adjacent thereto, and which thread shifting device in a second phase shifts the thread over a predetermined distance on the tube creating the reserve wraps. The thread shifting device is constructed such that the thread is shifted at higher shifting speed in the second phase than in the first phase.
Inventors
- 👤 Peter Gujer
- 👤 Hans Schellenberg
- 👤 Olivier Wust
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:54
CPC Classifications
B; B65; B65H; B65H67/00; B65H67/04; B65H67/044; B65H67/048; B65H2402/00; B65H2402/20; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
238 words
A winding device for automatically changing tubes for takingup endless threads or the like, said winding device being provided with a thread traversing device for generating thread winding wraps, a thread deflecting device for lifting the thread off the thread traversing device, a thread holding device provided with a thread guiding device for guiding the thread in its lifted-off position during the change of the bobbin tube, and at least two driven bobbin chucks alternately brought into a bobbin or tube change position respectively, each of said bobbin chucks supporting one tube, a thread catching and cutting zone arranged adjacent to one end of the associated tube and rotating with such tube, said thread holding device being arranged such that the thread lifted off the thread traversing device is guided thereby in the immediate vicinity of the thread catching and cutting zone, the improvement comprising the provision of thread Shifting means for shifting the thread guided by the thread holding device in a first shifting phase from a position at the immediate vicinity of the thread catching and cutting zone through such zone and onto an end portion of the tube adjacent thereto, and which thread shifting means in a second phase shifts the thread over a predetermined distance on such tube for creating the reserve wraps, said thread shifting means shifting the thread at a higher shifting speed during the second phase than during the first phase.
Claim 2
Dependent Claim
238 words
A winding device for automatically changing tubes for takingup endless threads or the like, said winding device being provided with a thread traversing device for generating thread winding wraps, a thread deflecting device for lifting the thread off the thread traversing device, a thread holding device provided with a thread guiding device for guiding the thread in its lifted-off position during the change of the bobbin tube, and at least two driven bobbin chucks alternately brought into a bobbin or tube change position respectively, each of said bobbin chucks supporting one tube, a thread catching and cutting zone arranged adjacent to one end of the associated tube and rotating with such tube, said thread holding device being arranged such that the thread lifted off the thread traversing device is guided thereby in the immediate vicinity of the thread catching and cutting zone, the improvement comprising the provision of thread Shifting means for shifting the thread guided by the thread holding device in a first shifting phase from a position at the immediate vicinity of the thread catching and cutting zone through such zone and onto an end portion of the tube adjacent thereto, and which thread shifting means in a second phase shifts the thread over a predetermined distance on such tube for creating the reserve wraps, said thread shifting means shifting the thread at a higher shifting speed during the second phase than during the first phase.
Claim 3
Dependent Claim
113 words
The winding device as defined in claim 1, said thread shifting means comprising a drive element which can be moved substantially linearly in several steps and movable in a direction essentially parallel to the lengthwise axis of the associated bobbin chuck, said drive element being connected with the thread holding device, the distance covered by the thread holding device during the first step of the movement of the drive element corresponding to the first shifting phase of the shifting movement and the distance covered by the thread holding device during the second step of the movement of the drive element corresponding to the second shifting phase of the shifting movement of the thread.
Claim 4
Dependent Claim
38 words
The winding device as defined in claim 2, wherein the drive element which is moved in several steps comprises a rigidly mounted double-step pneumatic piston and cylinder means having a piston rod connected with the thread holding device.
Claim 5
Dependent Claim
89 words
The winding device as defined in claim 3, wherein said piston and cylinder means comprises an outer cylinder and an inner cylinder, said inner cylinder being movable as a piston, the stroke of which piston defined by said inner cylinder corresponds to the first shitfting step, a piston member equipped with a piston rod, said piston member being movable within the inner cylinder, the stroke of said piston member corresponding to the second shifting step, said piston rod of said piston member being connected with the thread holding device.
Claim 6
Dependent Claim
202 words
The winding device as defined in claim 1, wherein said thread shifting means comprises a substantially linearly movable drive element movable in a direction substantially parallel to the lengthwise axis of the associated bobbin chuck, said drive element being connected with the thread holding device, a first thread guide element provided with a thread guide notch for takingup the thread after the latter has moved over a distance corresponding to the first thread shifting step, means for rigidly mounting said first thread guide element, a second thread guide element connected with the thread holding device at a location between the drive element and the thread guiding device of the thread holding device, said second thread guide element being provided with a thread guide surface arranged at an inclination with regard to the direction of movement of the thread holding device such that said thread guide surface, during such time as the thread holding device moves over a distance corresponding to the second shifting step, shifts the thread along a side surface of said thread guide notch of the first thread guide element and immediately prior to completion of the second shifting step shifts the thread over an end of such side surface.
Claim 7
Dependent Claim
37 words
The winding device as defined in claim 5, wherein the rigidly mounted first thread guide element is arranged above the movably arranged second thread guide element with respect to the lengthwise axis of the associated bobbin chuck.
Claim 8
Independent Claim
150 words
A method for transferring a textile thread which is wound-up while traversing the thread during the bobbin change operation from a full bobbin to an empty bobbin sleeve and for applying reserve windings to the empty bobbin sleeve, comprising the steps of lifting the thread during the bobbin change operation out of a thread traversing mechanism and guiding such to the direct neighborhood of a thread catch- and cutting zone adjacent the empty bobbin sleeve, during a first displacement stage moving the thread from thE thread catch- and cutting zone to thereby separate the thread from the full bobbin and guiding the thread to the neighboring end of the empty bobbin sleeve, then further guiding the thread during a second displacement stage on the sleeve to thereby form a reserve winding, and wherein the thread in the second stage is displaced at a greater speed than in the first stage.
Claim 9
Independent Claim
150 words
A method for transferring a textile thread which is wound-up while traversing the thread during the bobbin change operation from a full bobbin to an empty bobbin sleeve and for applying reserve windings to the empty bobbin sleeve, comprising the steps of lifting the thread during the bobbin change operation out of a thread traversing mechanism and guiding such to the direct neighborhood of a thread catch- and cutting zone adjacent the empty bobbin sleeve, during a first displacement stage moving the thread from thE thread catch- and cutting zone to thereby separate the thread from the full bobbin and guiding the thread to the neighboring end of the empty bobbin sleeve, then further guiding the thread during a second displacement stage on the sleeve to thereby form a reserve winding, and wherein the thread in the second stage is displaced at a greater speed than in the first stage.
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) | 1978-11-17 | 1979-05-19 | 1979-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-17 | 1983-05-19 | 1983-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-17 | 1987-05-19 | 1987-11-18 | $7700.00 | Window Closed / Lapsed |