US3762661A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic skein winding machine
Assignee: Croon and Lucke Maschinenfabrik GmbH and Co KG
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Filing: 1972-06-14
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Granted: 1973-10-02
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Expires: 1992-06-14
Abstract
Abstract The yarn wound by a yarn laying drum on a windup shaft, is clamped to the windup shaft at the beginning of a skein by a pair of clamping members. When the skein is wound, the clamping members open, and a combined cutting and clamping device moves between the open clamping members to a position first clamping, and then cutting, the yarn portion between the yarn laying drum and the finished skein. The cutting and clamping device is retracted with a cut and clamped yarn end, and the yarn is clamped between the pair of clamping members and then released by the cutting and clamping device so that a new skein can be wound when the old skein has been stripped from the windup shaft. A positioning rod moves the yarn portion between the skein and the laying drum in the path of the cutting and clamping means.
Inventors
- 👤 E Lucke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:17
CPC Classifications
B; B65; B65H; B65H54/00; B65H54/64; B65H54/66; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
227 words
Automatic skein winding machine, comprising, in combination, a driven windup shaft; a pair of biassed yarn clamping members mounted on said windup shaft; driven yarn laying means for guiding a supplied yarn clamped between said clamping members to and along said windup shaft so that a skein is wound on said windup shaft; first operating means for closing said clamping members when winding of a new skein is started, and for opening said clamping members when a skein is finished; a yarn transfer device including cutting means and clamping means together movable between the opened clamping members between a retracted position, and an operative position in which said clamping means clamps the yarn portion between the end of said skein and said yarn laying means whereupon said cutting means cuts the yarn at said end of said skein; and second operating means for first moving said transfer device from said retracted position to said operative position, after said first operating means have opened said clamping members, for operating said clamping means and cutting means, for returning said transfer device with said clamped yarn portion between said open clamping members to said retracted position, and for opening said clamping means to release said yarn portion when said first operating means have closed said clamping members to clamp the yarn between said yarn laying drum and said clamping means.
Claim 2
Dependent Claim
227 words
Automatic skein winding machine, comprising, in combination, a driven windup shaft; a pair of biassed yarn clamping members mounted on said windup shaft; driven yarn laying means for guiding a supplied yarn clamped between said clamping members to and along said windup shaft so that a skein is wound on said windup shaft; first operating means for closing said clamping members when winding of a new skein is started, and for opening said clamping members when a skein is finished; a yarn transfer device including cutting means and clamping means together movable between the opened clamping members between a retracted position, and an operative position in which said clamping means clamps the yarn portion between the end of said skein and said yarn laying means whereupon said cutting means cuts the yarn at said end of said skein; and second operating means for first moving said transfer device from said retracted position to said operative position, after said first operating means have opened said clamping members, for operating said clamping means and cutting means, for returning said transfer device with said clamped yarn portion between said open clamping members to said retracted position, and for opening said clamping means to release said yarn portion when said first operating means have closed said clamping members to clamp the yarn between said yarn laying drum and said clamping means.
Claim 3
Dependent Claim
35 words
Skein winding machine as claimed in claim 1 wherein said yarn laying means includes a rotary yarn laying drum having crossing helical guide grooves for guiding the yarn in axial direction of said windup shaft.
Claim 4
Dependent Claim
68 words
Skein winding machine as claimed in claim 2 wherein said yarn laying means includes movable mounting means for said yarn laying drum, and means for moving said yarn laying drum away from the peripheral surface of the skein wound on said winding shaft as the diameter of the skein increases so that the distance between the peripheral sur-faces of said skein and yarn laying drum remains substan-tially constant.
Claim 5
Dependent Claim
81 words
Skein winding machine as claimed in claim 1 further comprising positioning means movable between an inoperative position, and a yarn deflecting position engaging the yarn portion between said laying means and said skein for deflecting said yarn portion in the path of said cutting means and clamping means of said yarn transfer device moving from said retracted position to said operative position after said first operating means has opened said clamping members; and third operating means for operating said positioning means.
Claim 6
Dependent Claim
58 words
Skein winding machine as claimed in claim 4 wherein said positioning means includes an arm mounted for rotation about an axis parallel to the axis of rotation of said windup shaft, and a deflecting rod parallel to said axis, and passing between said windup shaft and said yarn laying means during movement to and from said deflecting position.
Claim 7
Dependent Claim
71 words
Skein winding machine as claimed in claim 1 further comprising stripper means mounted for axial movement on said windup shaft on the side of a wound skein remote from the end of said windup shaft; and operating means for moving said stripper means toward said end of said shaft so that said skein is pushed over said end of said windup shaft after said cutting means has cut said yarn portion.
Claim 8
Dependent Claim
90 words
Skein winding apparatus as claimed in claim 6 comprising holding means located at said end of said windup shaft and having an operative position aligned with said windup shaft, and a holding position tRansverse to said windup shaft; and operating means for said holding means for placing said holding means in said operative position when said stripper means push a wound skein over said end of said windup shaft so that said skein is transferred to said holding means and then turned with said holding means to said holding position.
Claim 9
Dependent Claim
25 words
Skein winding apparatus as claimed in claim 7 wherein said holding means includes a holding rod coaxial with said windup shaft in said operative position.
Claim 10
Dependent Claim
78 words
Skein winding apparatus as claimed in claim 7 wherein said holding means includes a basket having a bottom, a plurality of rods projecting from said bottom and arranged in a circle for receiving in said operative position a stripped off skein, and means for moving said rods radially toward each other for compressing a skein so that a holding ring surrounding said rods can be slipped onto said compressed skein during removal of said skein from said basket.
Claim 11
Dependent Claim
35 words
Skein winding apparatus as claimed in claim 9 wherein said holding means comprise linkage means mounted on said bottom and connecting said rods so that said rods move together the same distance in radial direction.
Claim 12
Dependent Claim
65 words
Skein winding machine as claimed in claim 1 said second operating means comprising supporting means supporting said transfer device for movement between said retracted and operative positions, and means for mounting said supporting means for radial movement toward or away from the axis of said windup shaft whereby a predetermined distance between the outer periphery of a completed skein and said transfer device is maintained.
Claim 13
Dependent Claim
65 words
Skein winding device as claimed in claim 1 wherein said cutting means includes a fixed cutting member and an angularly movable cutting member; wherein said clamping means includes a bent up spring mounted on said fixed cutting member and cooperating with said movable cutting member to clamp said yarn portion before said movable cutting member engages said fixed cutting member and cuts said yarn portion.
References Cited (Backward Citations)
US3426408A
Cited
US3693897A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-01 | 1977-04-02 | 1977-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-01 | 1981-04-02 | 1981-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-01 | 1985-04-02 | 1985-10-02 | $7700.00 | Window Closed / Lapsed |