US3460689A - Traveling creel assembly for beam warpers - Google Patents

Traveling creel assembly for beam warpers Download PDF

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Publication number
US3460689A
US3460689A US698535A US3460689DA US3460689A US 3460689 A US3460689 A US 3460689A US 698535 A US698535 A US 698535A US 3460689D A US3460689D A US 3460689DA US 3460689 A US3460689 A US 3460689A
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creel
carriage
mandrels
stripper
coils
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US698535A
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Stefan Furst
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    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02H—WARPING, BEAMING OR LEASING
    • D02H1/00—Creels, i.e. apparatus for supplying a multiplicity of individual threads

Definitions

  • a creel assembly for beam warpers comprises a creel carriage which can be run into and out of its operative position by moving it on track rails.
  • the traveling carriage cooperates with a doffer device composed of supporting columns which are ⁇ stationarily mounted on opposite sides of the track and carry stripper arms extending toward the creel mandrels to strip the residual yarn coils or empty cores off the mandrels as the carriage passes by.
  • a doffer device composed of supporting columns which are ⁇ stationarily mounted on opposite sides of the track and carry stripper arms extending toward the creel mandrels to strip the residual yarn coils or empty cores off the mandrels as the carriage passes by.
  • My invention relates to traveling creel racks for supplying yarn to the beams of warpers or the like.
  • creel carriage For replenishing the exhausted cheeses or other coils of yarn, the creel carriage can be run out of the creel frame-generally containing the tensioners and any necessary guide members for the yarn.
  • a creel carriage is known for example from the ⁇ German Patent 728,460. It serves to expedite the exchange of exhausted coils by permitting a second creel carriage, previously loaded with full coils, to be run into the creel frame as soon as the previously operating creel carriage has traveled away from the frame.
  • German Patent 522,353 describes a beam warper with a stationary creel rack in conjunction with doing devices which become active to strip the yresidual coils off the mandrels when the mandrels are moved from a working position to a special coil-replenishing position.
  • Mechanisms for thus shifting the mandrels from the working position to a replenishing position are not necessary for, and not used with beam warpers equipped with a traveling creel carriage. For that reason the known doffer devices do no lend themselves for use with creel carriages but would require a considerable increase in mechanical equipment without appreciably reducing the time required for removing the residual coils.
  • I provide the traveling creel-carriage assembly with a doffer device which comprises a supporting struc- 3,460,689 Patented Aug. 12, 1969 ture at a fixed position along the travel path of the carriage and which has stripper members mounted on the before lthe creel carriage reaches the loading or replenishing station. Hence the attending personnel need only place the full cores onto the previously cleared mandrels of the creel carriage.
  • the individual stripper members of a doffer device when entering into proximity to the respective mandrels, as the creel carriage approaches ⁇ the doffer device, may perform a motion rela ⁇ tive to the mandrel and relative to the stationary support in order to thereby remove the residual coil or core from the mandrel; and such relativemotion maybe released, effected or controlled, for example, by cams, dogs or the like which during travel of the creel carriage act upon the stripper members by a suitable linkage or through an electromagnetic control circuit.
  • the doffer device with a number of stripper arms which are arranged on both sides of the carriage track at the respective heights of each horizontal line or level of mandrels and which extend substantially in planes parallel to the mandrel axes.
  • the arms are given a forward edge which catches like a wedge behind the coil core to be stripped so as to gradually urge the core to glide along the edge and off the mandrel as the carriage travels past the doffer device.
  • the wedging or gliding edge may be constituted by a correspondingly curved wire or rod, or by a rather massive stripper arm.
  • stripper arm suffices to lift the front end of the core over the nose in opposition to the spring bias.
  • the stripper arms are displaced relative to each other in the travel direction of the carriage.
  • the displacement preferably is such that each two stripper arms on opposite sides of the carriage operate simultaneously and commence their stripping operations ahead of the next pair of stripper arms acting on the ditferent level of mandrels.
  • a centering guide engaged by the stationary doffer device is preferably mounted on the creel carriage above the uppermost line of mandrels.
  • FIG. 1 is a lateral view of the creel carriage and the appertaining ⁇ stationary doter device
  • FIG. 2 is a plan view of the assembly
  • FIG. 3 is a front view of the assembly
  • FIG. 4 shows a detail of FIG. 1 on a larger scale
  • FIG. 5 is a section along the line V-V in FIG. 4.
  • FIG. 6 is a section along the line VI-VI in FIG. 4.
  • the illustrated assembly comprises a creel carriage 1 with a grid arrangement of horizontal mandrels 9, the arrangement forming vertical rows and horizontal lines or levels of such mandrels.
  • Each mandrel is shown to carry a coil 2 of yarn.
  • the creel carriage has been used for loading a warper beam and requires replenishing. That is, the coils 2 are presumed to be residual, being more or less depleted or being constituted by substantially empty cores. For simplicity they will all be hereinafter referred to as coils.
  • the creel carriage has running wheels 3 with the aid of which the carriage travels on a track of rails 4. Referring to FIG. 1 it is assumed that the creel carriage has been run out of the stationary creel frame in the direction of the arrow 1a.
  • the creel frame (not illustrated) defines the working position of the creel and contains such accessory means as yarn tensioners or guide rollers, guide pins and the like. Since such and other details are not essential to the invention proper, reference may be had to the abovementioned German patents or also to my U.S. Patents No. 3,317,979; No. 3,391,437 (Ser. No. 554,540 led June 1, 1966; No. 3,377,676 (Ser. No. 570,641 tiled Aug. 5, 1966); and No. 3,377,677 (Ser. No. 570,501 led Aug. 5, 1966).
  • the doffer device 5 for removing the coils 2 comprises a supporting structure 6 mounted on each side of the rail track and constituted by two upright columns which slant toward the arriving direction of the creel carriage.
  • Each of the slanting columns 6 carries a number of stripper arms 7, one arm for each horizontal line or level of mandrels.
  • the tips of the arms point from the outside toward the center of the trackway and are staggered on account of the inclination of the columns 6.
  • stripper arm 7 is formed of a flat structure which extends substantially parallel to the plane of the mandrel axes.
  • Each stripper arm 7 has a frontal edge 7a which catches like a wedge behind the coil core 8 due to the relative travel between the dofer device and the creel mandrels. As such relative travel proceeds, the edge wedges the core 8 away from its seat, and the core then glides ⁇ along the edge untilthe core is thrown olf the mandreLThe'Wedge angle a of the edge 7a relative to the travel direction of the carriage gradually decreases from the supporting column 6 (FIG. 5) toward the tip ofthe arm. As shown in FIG.
  • the glider edge 7a the shape of a curved line which extends substantially tangential to the travel direction of the creel carriage at the tip of the stripper arm, and which after curving to a wedge angle a of approximately 30, or anywhere between l0 and 45, converts to a straight line.
  • the coil cores 8 are coaxially centered on the support,- ing mandrels 9x which are equipped with a stop nose 10 at the uppermost end. They nose prevents the coil from gliding off when the yarn is being unwound duringthe beam loading operation.
  • a spring 11 (FIG. 6.) additionally biases the coil core 8 downwardly so that it will reliably abut against the nose 10.
  • the stripper arms 7 catch behind the coil cores 8 at the side of the mandrel 9 that lies opposite the stop nose 10. This has the effect of slightly lifting the cores at their frontal end in opposition to the force of spring 11, so that the cores can glide over the noses 10. Since during this stage of operation the force required for stripping the core 8 is largest, the wedge angle a is smallest in this particular range.
  • the doffer device is mounted separate from the creel frame at a suitable place along the travel path of the carriage.
  • the tracks for the creel carriage may be provided with .a switch or side track on which the carriage just run out of the frame and containing residual coils, is passed by -a carriage which contains full coils and is being run into the frame.
  • the dolfer device is preferably so located that the creel carriage always travels in one and the same direction through or past the doifer device. This permits a fixed mounting of the stripper arms.
  • the stripper arms must lbe so mounted that they do not impede the creel carriage when the carries full coils and is being run into the frame. This can be done by giving the stripper arms an elastic mounting.
  • the stripper arms 7 in the illustrated embodiment are pivotally joined with the columns 6.
  • the arms 7 can turn to the position 7 shown by broken lines in FIG. 5. Subsequently the arms 7 return to the starting position under the vaction of -a spring 7b, the return motion being limited by a stop 7c (FIG. 4).
  • the stripper arms 7 v should always engage the coil cores 8 at predetermined localities. This is achieved by having the travel path of the creel carriage determined not only by the track rails, but also by a centering guide rail 1I mounted 0n the carriage above the uppermost line of mandrels.
  • the guidel rail 11 is in gliding engagement with a straddle member 12 of the doffer device 5. To prevent obscuring of other parts, the upper portionof the doffer device comprising the rail 11 and the straddle member 12 is omitted in FIG. 2, the design and performance of these components being fully apparent from FIGS. 1 and 3.
  • the dotted coils 2 drop upon inclined guide sheets 13 on which they roll or guide onto a conveyer belt 15 driven by a motor 14.
  • the conveyer belt 15 transports the coils into a wheeled collection box 16 in which they are subsequently moved to the Winding shop in order to be cleared of desidual yarn or to be replenished with yarn.
  • a guide sheet 13 and a conveyor 15 are mounted on each of the opposite sides of the rail track.
  • the conveyers 15, however, are not needed if the floor beneath the guide sheets 13 is excavated sufficiently to permit placing the collecting box 16 directly beneath the guide sheets 13.
  • the coils may drop from the sheets 13 directly into the winding shop located on the iloor beneath.
  • a collecting box 16 or the like may be eliminated by providing for conveying means which pass the coils directly to the winding shop; for example the conveyers 15 may be extended to suit this purpose.
  • processing of highly sensitive yarns may make it desirable to prevent an excessively large drop of residual cores, for example from the topmost line of mandrels, down onto the glide sheet 13, by providing several or all of the mandrel levels with respective guide sheets on which the doffed coils glide or roll onto the conveyer belt 15.
  • a creel assembly for beam Warpers comprising a creel carriage having mandrels arranged in vertical groups and horizontal lines for coaxial engagement by respective tubular coil members, guide means detining a given travel path for said carriage, and a doier device having stripper means operable in positional dependence upon the travel of said carriage and engageable with respective coil members on said mandrels for clearing said mandrels during carriage travel.
  • said doier device comprising tWo upright supports mounted on opposite sides respectively of said travel path, said stripper means being formed of respective stripper arms extending from each of said supports toward said travel path at the respective heights of each line of mandrels.
  • each of said stripper arms extending substantially in a plane parallel to the mandrel axis and having a coil-stripping edge of wedge-shaped configuration so as to catch behind the coil member for engaging it at said edge when clearing mandrel.
  • each of said stripper arms having a free end at which said edge extends substantially parallel to the travel direction of said carriage, said arm having in said plane a shape tapering toward said free end.
  • said edge of said arms having the shape of a gradually curved line which extends substantially tangential to the carriage travel direction near said end and thence curves up to a wedge angle from about 10 to about 45 whereafter said line is substantially linear.
  • said mandrels having respective stops which near the mandrel tip protrude radially from one side of each mandrel for narmally retaining a coil thereupon, said stripper arms being located at the opposite side of said respective mandrels when in coil dofting position.
  • said guide means comprising floor rails supporting said creel carriage, and top guide means located above the uppermost line of mandrels for centering said creel carriage relative to said dofer device.
  • said top guide means comprising a center rail member extending parallel to said oor rails in a vertical center plane of said carriage, and a straddle member engageable with said center rail, one of said two members of said top guide means being mounted on said carriage, and said other member being mounted in iixed relation to said doier device.
  • said center rail being mounted on said creel carriage and having a length approximately corresponding to that of said carriage
  • said doter device comprising two supports stationarily mounted on opposite sides respecively of said iioor rails, each of said supports carrying a number of said stripper means, and said straddle member being disposed on top of said doffer device and fastened to said two supports.
US698535A 1967-02-11 1968-01-17 Traveling creel assembly for beam warpers Expired - Lifetime US3460689A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4783021A (en) * 1986-01-27 1988-11-08 Murata Kikai Kabushiki Kaisha Apparatus for supplying packages to a creel
US5060884A (en) * 1989-07-20 1991-10-29 Karl Mayer Textilmaschinenfabrik Gmbh Creel for warping arrangement having spool core discharge means
US5379956A (en) * 1992-12-03 1995-01-10 Karl Mayer Textilmaschinenfabrik Gmbh Spool holder for thread spools
US5573191A (en) * 1993-11-10 1996-11-12 Benninger Ag Device for the ejection of remnant packages and empty bobbins on a creel
EP1215316A1 (de) * 2000-12-12 2002-06-19 Benninger AG Vorrichtung zum Austragen von Restspulen oder Leerhülsen an einem Spulengatter
CN105416982A (zh) * 2015-12-22 2016-03-23 广东溢达纺织有限公司 筒子纱送料收料系统及其送料收料方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9010089U1 (de) * 1990-07-03 1991-12-12 Hacoba Textilmaschinen Gmbh & Co Kg, 5600 Wuppertal, De

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2050775A (en) * 1934-04-09 1936-08-11 Eugene R Alderman Warping apparatus
US2961822A (en) * 1957-01-05 1960-11-29 Juan Hostench Serra Doffing and donning apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2050775A (en) * 1934-04-09 1936-08-11 Eugene R Alderman Warping apparatus
US2961822A (en) * 1957-01-05 1960-11-29 Juan Hostench Serra Doffing and donning apparatus

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4783021A (en) * 1986-01-27 1988-11-08 Murata Kikai Kabushiki Kaisha Apparatus for supplying packages to a creel
US5060884A (en) * 1989-07-20 1991-10-29 Karl Mayer Textilmaschinenfabrik Gmbh Creel for warping arrangement having spool core discharge means
US5379956A (en) * 1992-12-03 1995-01-10 Karl Mayer Textilmaschinenfabrik Gmbh Spool holder for thread spools
US5573191A (en) * 1993-11-10 1996-11-12 Benninger Ag Device for the ejection of remnant packages and empty bobbins on a creel
EP1215316A1 (de) * 2000-12-12 2002-06-19 Benninger AG Vorrichtung zum Austragen von Restspulen oder Leerhülsen an einem Spulengatter
CN105416982A (zh) * 2015-12-22 2016-03-23 广东溢达纺织有限公司 筒子纱送料收料系统及其送料收料方法
CN105416982B (zh) * 2015-12-22 2018-10-16 广东溢达纺织有限公司 筒子纱送料收料系统及其送料收料方法

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