US3912185A - Device for wrapping yarn around nelson rollers - Google Patents

Device for wrapping yarn around nelson rollers Download PDF

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Publication number
US3912185A
US3912185A US430531A US43053174A US3912185A US 3912185 A US3912185 A US 3912185A US 430531 A US430531 A US 430531A US 43053174 A US43053174 A US 43053174A US 3912185 A US3912185 A US 3912185A
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US
United States
Prior art keywords
rollers
yarn
guide
wrapping
around
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US430531A
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English (en)
Inventor
Kiyomi Yamada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Heavy Industries Ltd
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Mitsubishi Heavy Industries Ltd
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Publication date
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H57/00—Guides for filamentary materials; Supports therefor
    • B65H57/003—Arrangements for threading or unthreading the guide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H57/00—Guides for filamentary materials; Supports therefor
    • B65H57/12—Tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H57/00—Guides for filamentary materials; Supports therefor
    • B65H57/26—Supports for guides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H57/00—Guides for filamentary materials; Supports therefor
    • B65H57/28—Reciprocating or oscillating guides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • ABSTRACT A device for wrapping yarn around nelson rollers, or a pair of rollers with their axes arranged side by side but spaced apart wider at their free ends than at the supported ends and rotating together.
  • a guide is located above and on a plane extended from a point of the pair of rollers which is a given distance inward from the free ends, and the guide is adapted to revolve around the both rollers thereby to pass the yarn in a desired number of wraps therearound, and, after having wrapped the yarn in this manner, the guide is kept out of direct contact with the running yarn.
  • the wrapping guide is either hinged tumably on a spindle adapted to revolve around the pair of rollers or split into two, a lower half being fixed to the spindle whereas an upper half is detachably secured to the lower one.
  • the spindle is equipped with a weight to allow the wrapping guide to take the same direction during its circular motion around the nelson rollers caused by a rotating member.
  • a stopper is provided which stops the rotating member after the wrapping of the yarn around the rollers.
  • FIG.2 FIG.3
  • FIG. z is a diagrammatic representation of FIG. z.
  • This invention relates to a device for wrapping yarn around nelson rollers on textile machines.
  • Conventional nelson rollers in use with textile machinery comprise pairs of rollers l, 2 as shown in FIG. 2 whose axes are arranged side by side but spaced apart narrower at their free ends than at the supported ends.
  • Yarn has usually been wrapped around each pair of such rollers in either of two ways.
  • One method is by the use of an air sucker which is provided on the exit side of a yarn feeder and carries and wraps the yarn around the rollers by dint of vacuum.
  • the other method consists of drawing off the yarn from the exit by a combination of a ring and a traveller as on a ring twisting frame and then wrapping the yarn around the rollers by hand with the aid of a guide in the form of a snail wire.
  • the former is impractical where the yarn leaving the nelson rollers is to be continuously fed via a nozzle or the like to the subsequent process, for example for crimping with hot compressed fluid.
  • the air sucker in this case will not work unless the nozzle is split and made openable in the direction where the yarn runs.
  • the latter has a disadvantage, too, in that, if the tension of the yarn at the exit is below a certain level, as shown in FIG. 3, the tension will be further decreased by the friction between a guide 3 and the yarn in the section 4 between the guide and the nelson rollers. Consequently, the mirror adhesion of the roller surfaces will overcome the tension and cause the yarn to stick around the rollers, making the wrapping impossible.
  • Another alternative is to arrange the pair of rollers with their axes spaced apart wider at the free ends than at the supported ends, hold a snail wire or suchlike guide through which yarn passes toward the yarn-receiving portions of the nelson rollers, and wrap the yarn around the both rollers. Actually the procedure is too cumbersome for general acceptance.
  • the present invention is proposed with the view to eliminating the foregoing disadvantages of the prior art arrangements.
  • the invention has for its object to provide a device for wrapping yarn around nelson rollers which ensures smooth wrapping of yarn even with a low tension at the yarn-releasing ends of the nelson rollers and avoids any frictional contact during normal operation between the wrapping guide and the yarn being received by the nelson rollers.
  • FIG. 1 is a schematic front sectional view of a device embodying the invention for wrapping yarn around nelson rollers;
  • FIG. 2 is a front view of a pair of conventional nelson rollers
  • FIG. 3 is a side view of another pair of conventional nelson rollers
  • FIG. 4 is a schematic front sectional view of another embodiment of the invention.
  • FIG. 5 is a sectional view taken on the line X-X of FIG. 4.
  • a tubular yarn-wrapping guide 5 is shown as secured to a spindle 7 by a hinge 6 so that it can turn on end to the position 5' indicated by broken lines.
  • the end of the guide 5 at which the yarn leaves is positioned above and on a plane extended from a point of a pair of nelson rollers 8, 9 which is a given distance inward from the free ends of the rollers.
  • the end of the guide 5 where the yarn enters is so disposed that the section b of the yarn from a point A does not touch any part of the pair of nelson rollers 8, 9 as the yarn is wrapped therearound.
  • the point A represents the position from which the yarn is introduced into the wrapping device.
  • the wrapping guide 5 drawn in full lines is in the course of wrapping the yarn around the both rollers.
  • the guide assumes the broken-line position 5 when it has wound the yarn in a desired number of wraps around the both rollers and has resumed its position for normal operation.
  • the guide stands parallel to the yarn a, the surrounding wall of the guide hole being out of contact with the yarn.
  • the guide is so built as to remain rigidly in its selected position.
  • the bore of the guide 5 is large enough to permit the yarn a during normal operation to run clear of the surrounding wall, although the exact dimension depends upon the handling and space requirements to be satisfied and the size of yarn to be encountered.
  • An arm 10 carries at one end the spindle 7 rotatably with a bearing 11.
  • the arm 10 is bent to an L-shape and a rotating member 12 is rigidly fixed to the other end.
  • This end portion of the arm 10 is rotatably supported by a stationary member 14 via a bearing.
  • a weight 13 which keeps the wrapping guide 5 in the same direction and posture during the circular motion of the spindle 7 caused by the rotation of the arm 10 with the rotating member 12.
  • a stopper 15 is provided which stops the rotating member 12 after the yarn has been passed a desired number of wraps around the nelson rollers and also brings the weight 13 into engagement with the stationary member 14 thereby to keep the guide 5 in the position 5 parallel to the run ning yarn a.
  • the pair of nelson rollers 8, 9 are arranged with a space therebetween gradually increased from the supported ends toward the free ends. As shown, the point A is located above and on a plane extended from a point of the pair of the nelson rollers which is a given distance inward from the free ends of the rollers and also a given distance away from the entrance of the wrapping guide 5.
  • the yarn c passes through the wrapping guide 5 in the position 5" indicated by chain lines in FIG. 1, and runs toward a next station (not shown) where it is imparted with a proper tension for the subsequent handling.
  • the yarn is not wrapped yet around the nelson rollers 8, 9.
  • the rotating member 12 is driven in the direction of an arrow D, and the guide 5 revolves around the nelson rollers which are running contrariwise in the directions of arrows B. Consequently, the yarn from the guide 5 is wrapped around the rollers.
  • the portions of the rollers to which the yarn is directed and wrapped across the axes of the rollers depend upon the relative inclinations of the roller axes and upon the position of the guide 5 above the yarn-receiving end portions of the rollers.
  • the relative inclinations of the roller axes being the same, the yarn position will be dictated by the position of the axial exit end portion of the guide.
  • Each revolution of the wrapping guide 5 around the nelson rollers 8, 9 forms a complete wrap of the yarn therearound, the yarn being gradually urged toward the yarn-releasing end portions of the rollers. In this way the yarn can be passed in a desired number of wraps around the rollers by imparting rotation to the rotating member 12.
  • the guide is turned on end to the position 5 and is kept from further revolution by the stopper 15. The yarn-wrapping operation is thus concluded.
  • FIG. 4 illustrates another embodiment of the invention which employs a wrapping guide 16 unlike the counterpart 5 of FIG. 1.
  • the guide 16 is split into an upper half 16 and a lower half 16", the latter being fixedly mounted on the spindle 7.
  • the upper half 16 is detachably secured to the lower half 16".
  • FIG. 4 operates in the following way.
  • the yarn in the path 0 (not shown in FIG. 4) passes through the wrapping guide 16 to the ensuing station where it is subjected to certain tension. In this state, therefore, the yarn is yet to be wrapped around the nelson rollers.
  • the rotating member 12 (not shown here) is driven in the direction of the arrow D in FIG. 1. This causes the wrapping guide 16 to revolve with the arm around the nelson rollers, thereby wrapping the yarn from the guide 16 around the both rollers.
  • the upper half 16 of the guide 16 is detached, so that the yarn from the point A runs directly along a path a toward the rollers clear of the wrapping device.
  • the yarn is totally free from the wrapping arrangement and this eliminates the necessity of providing a wrapping device for each pair of nelson rollers as in the past.
  • a single wrapping device can do the job as it is sequentially associated with the pairs of the rollers one after another.
  • the device of the invention performs wrapping of yarn around the yarnreceiving portions of nelson rollers satisfactorily without the use of an air sucker even when the yarn leaving the rollers runs through a nozzle or the like toward a subsequent process. Moreover, because the yarn that has passed in a desired number of wraps around the nelson rollers can run out of contact with the wrapping guide, the yarn during normal operation following the wrapping around the rollers is freed from any frictional contact with the guide, and smooth running of the yarn is ensured.
  • the device according to the invention can be used even in the case where the yarn is being pretreated before arrival at the nelson rollers and the pretreated yarn should not come into contact with anything on its way to the latter.
  • the device of the invention may be used on all the textile machines, such as bulking machines, that employ nelson rollers.
  • a device for wrapping yarn around nelson rollers, or a pair of rollers with their axes arranged side by side but spaced apart wider at their free ends than at the supporting ends and rotating together comprising a wrapping guide having an end from which the yarn leaves for movement toward said pair of rollers, said end of said guide is located above and on a plane extending through a point on the pair of rollers which is a given distance inward from the free ends thereof, said guide being rotatable about said rollers to wrap the yarn thereabout, the yarn being delivered from a position above said rollers and guide to said rollers near said point and after being wrapped extending from said supported ends, means for rotating said guide about said rollers including a rotatable arm, a spindle rotatably attached at one end of said arm, and a means for rotatably driving said arm attached at the other end, a weight mounted on said spindle near the end supported by said arm, and said guide mounted at the other end of said spindle.
  • a device for wrapping yarn around nelson rollers according to claim 1 wherein said wrapping guide is hinged turnably on said spindle to revolve around the pair of rollers.
  • a device for wrapping yarn around nelson rollers according to claim 1, wherein said wrapping guide comprises two halves, a lower half fixed to said spindle adapted to revolve around the pair of rollers and an upper half detachably secured to said lower half.
  • a device for wrapping yarn around nelson rollers including a stopper for engaging and preventing rotation of said rotating means after the wrapping of the yarn around the pair of rollers.
  • a device for wrapping yarn around nelson rollers according to claim 2, wherein said guide comprises an opening therethrough to guide the yarn when it is being wrapped about the nelson rollers and which allows the yarn to pass therethrough when the yarn has been wrapped without contacting the guide.
  • a device wherein the upper half of said guide is removed from the lower half after the yarn has been wrapped about the nelson rollers so that the yarn will not contact said guide.

Landscapes

  • Forwarding And Storing Of Filamentary Material (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Guides For Winding Or Rewinding, Or Guides For Filamentary Materials (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Treatment Of Fiber Materials (AREA)
US430531A 1973-01-12 1974-01-03 Device for wrapping yarn around nelson rollers Expired - Lifetime US3912185A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1973006863U JPS5244661Y2 (enrdf_load_stackoverflow) 1973-01-12 1973-01-12

Publications (1)

Publication Number Publication Date
US3912185A true US3912185A (en) 1975-10-14

Family

ID=11650067

Family Applications (1)

Application Number Title Priority Date Filing Date
US430531A Expired - Lifetime US3912185A (en) 1973-01-12 1974-01-03 Device for wrapping yarn around nelson rollers

Country Status (10)

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US (1) US3912185A (enrdf_load_stackoverflow)
JP (1) JPS5244661Y2 (enrdf_load_stackoverflow)
AT (1) AT341073B (enrdf_load_stackoverflow)
BE (1) BE809677A (enrdf_load_stackoverflow)
BR (1) BR7400132D0 (enrdf_load_stackoverflow)
CA (1) CA997921A (enrdf_load_stackoverflow)
DE (1) DE2401073C3 (enrdf_load_stackoverflow)
FR (1) FR2213998B1 (enrdf_load_stackoverflow)
GB (1) GB1425001A (enrdf_load_stackoverflow)
IT (1) IT1014042B (enrdf_load_stackoverflow)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4687150A (en) * 1985-10-04 1987-08-18 Alan Gutschmit Strand storing and delivering device
US4691873A (en) * 1986-06-06 1987-09-08 Alan Gutschmit Strand storing and delivering device
US4817880A (en) * 1986-04-17 1989-04-04 Barmag Ag Yarn withdrawal appratus and method
US4880177A (en) * 1987-11-07 1989-11-14 Barmag, Ag Yarn withdrawal apparatus
US4890800A (en) * 1987-07-30 1990-01-02 Barmag, Ag Yarn withdrawal apparatus and method
US5058818A (en) * 1990-02-08 1991-10-22 Magnatech International, Inc. Multi-strand bobbin winding apparatus
USD367658S (en) 1988-04-11 1996-03-05 Tucker George W Yarn drum
WO2001094247A3 (en) * 2000-06-08 2002-06-06 Du Pont Apparatus and methods for feeding yarn
US20230008282A1 (en) * 2019-12-21 2023-01-12 Gambro Lundia Ab Fiber bundle handover

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8311503D0 (en) * 1983-04-27 1983-06-02 Triplite Ltd Yarn feed device
EP0349866B1 (de) * 1988-07-04 1992-08-12 Maschinenfabrik Rieter Ag Bandführer, der auf einem Auslauftisch einer Kämmaschine befestigt ist
DE19546404A1 (de) * 1995-12-12 1997-06-19 Terrot Strickmaschinen Gmbh Fadenliefervorrichtung

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2232500A (en) * 1940-04-10 1941-02-18 Western Electric Co Strand handling device
US2350182A (en) * 1941-12-20 1944-05-30 Du Pont Yarn production
US2525760A (en) * 1946-12-06 1950-10-17 Lustrafil Ltd Continuous process for the production and treatment of artificial threads
US2545015A (en) * 1946-12-17 1951-03-13 Lustrafil Ltd Method and apparatus for loading thread advancing rolls
US2794542A (en) * 1953-07-21 1957-06-04 American Viscose Corp Method and apparatus for lacing thread-advancing rotors
US3077313A (en) * 1960-06-28 1963-02-12 Du Pont Yarn guide and string-up apparatus

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2056593A1 (de) * 1970-11-17 1972-06-15 Zinser-Textilmaschinen Gmbh, 7333 Ebersbach Vorrichtung zum Transportieren von Fäden

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2232500A (en) * 1940-04-10 1941-02-18 Western Electric Co Strand handling device
US2350182A (en) * 1941-12-20 1944-05-30 Du Pont Yarn production
US2525760A (en) * 1946-12-06 1950-10-17 Lustrafil Ltd Continuous process for the production and treatment of artificial threads
US2545015A (en) * 1946-12-17 1951-03-13 Lustrafil Ltd Method and apparatus for loading thread advancing rolls
US2794542A (en) * 1953-07-21 1957-06-04 American Viscose Corp Method and apparatus for lacing thread-advancing rotors
US3077313A (en) * 1960-06-28 1963-02-12 Du Pont Yarn guide and string-up apparatus

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4687150A (en) * 1985-10-04 1987-08-18 Alan Gutschmit Strand storing and delivering device
US4817880A (en) * 1986-04-17 1989-04-04 Barmag Ag Yarn withdrawal appratus and method
US4691873A (en) * 1986-06-06 1987-09-08 Alan Gutschmit Strand storing and delivering device
US4890800A (en) * 1987-07-30 1990-01-02 Barmag, Ag Yarn withdrawal apparatus and method
US4880177A (en) * 1987-11-07 1989-11-14 Barmag, Ag Yarn withdrawal apparatus
USD367658S (en) 1988-04-11 1996-03-05 Tucker George W Yarn drum
US5058818A (en) * 1990-02-08 1991-10-22 Magnatech International, Inc. Multi-strand bobbin winding apparatus
WO2001094247A3 (en) * 2000-06-08 2002-06-06 Du Pont Apparatus and methods for feeding yarn
US20230008282A1 (en) * 2019-12-21 2023-01-12 Gambro Lundia Ab Fiber bundle handover
US12257556B2 (en) * 2019-12-21 2025-03-25 Gambro Lundia Ab Fiber bundle handover

Also Published As

Publication number Publication date
JPS49108924U (enrdf_load_stackoverflow) 1974-09-18
AT341073B (de) 1978-01-25
AU6412274A (en) 1975-07-03
DE2401073A1 (de) 1974-07-25
BE809677A (fr) 1974-05-02
FR2213998B1 (enrdf_load_stackoverflow) 1977-08-26
FR2213998A1 (enrdf_load_stackoverflow) 1974-08-09
BR7400132D0 (pt) 1974-08-15
CA997921A (en) 1976-10-05
GB1425001A (en) 1976-02-18
DE2401073B2 (de) 1977-12-22
DE2401073C3 (de) 1978-08-31
ATA24674A (de) 1977-05-15
JPS5244661Y2 (enrdf_load_stackoverflow) 1977-10-11
IT1014042B (it) 1977-04-20

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