US3081045A - Automatic supply package indexing mechanism for winding machines - Google Patents

Automatic supply package indexing mechanism for winding machines Download PDF

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Publication number
US3081045A
US3081045A US30346A US3034660A US3081045A US 3081045 A US3081045 A US 3081045A US 30346 A US30346 A US 30346A US 3034660 A US3034660 A US 3034660A US 3081045 A US3081045 A US 3081045A
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United States
Prior art keywords
yarn
package
pin
latch
supply
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
US30346A
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English (en)
Inventor
Thomas E Pitts
Carlton A Steele
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Leesona Corp
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Leesona Corp
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Filing date
Publication date
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Priority to US30346A priority Critical patent/US3081045A/en
Priority to DE19611560403 priority patent/DE1560403A1/de
Priority to CH593261A priority patent/CH394000A/de
Priority to GB18219/61A priority patent/GB969776A/en
Priority to GB6141/64A priority patent/GB969778A/en
Priority to GB6142/64A priority patent/GB969779A/en
Priority to FR862331A priority patent/FR1293733A/fr
Priority to BE604007A priority patent/BE604007A/fr
Application granted granted Critical
Publication of US3081045A publication Critical patent/US3081045A/en
Priority to SE14161/63A priority patent/SE304942B/xx
Anticipated expiration legal-status Critical
Assigned to JOHN BROWN INDUSTRIES LTD., A CORP. OF DE. reassignment JOHN BROWN INDUSTRIES LTD., A CORP. OF DE. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: LEESONA CORPORATION; 333 STRAWBERRY FIELD RD., WARWICK, RI. A CORP. OF MA.
Assigned to LEESONA CORPORATION reassignment LEESONA CORPORATION CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). EFFECTIVE DATE 3-31-81 STATE OF DELAWARE Assignors: JOHN BROWN INDUSTRIES LTD.
Expired - Lifetime legal-status Critical Current

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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
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/22—Automatic winding machines, i.e. machines with servicing units for automatically performing end-finding, interconnecting of successive lengths of material, controlling and fault-detecting of the running material and replacing or removing of full or empty cores
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B65H63/02—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B65H63/02—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material
    • B65H63/024—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials
    • B65H63/036—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the combination of the detecting or sensing elements with other devices, e.g. stopping devices for material advancing or winding mechanism
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
    • B65H67/02—Arrangements for removing spent cores or receptacles and replacing by supply packages at paying-out stations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
    • B65H67/06—Supplying cores, receptacles, or packages to, or transporting from, winding or depositing stations
    • B65H67/063—Marking or identifying devices for packages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2407/00—Means not provided for in groups B65H2220/00 – B65H2406/00 specially adapted for particular purposes
    • B65H2407/50—Means for protecting parts of handling machine
    • B65H2407/51—Means for making dustproof
    • 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

  • This invention relates to improvements in winding machines or the like and is concerned speciiicallywith an automatic indexing mechanism for a winding machine of the autom-atie type.
  • the machine of this patent consists of a winding section, including a winding mandrel mounted for controlled movement between a winding position, a braking position, and a reverse rotation position, and a driving drum provided with a groove to traverse the yarn being wound upon the mandrel; an end-:Finding and knot-tying section operable in the event of thread breakage and including a knot-tying device and separate means for finding the respective free ends of the broken yarn and conveying them to the -knot-tier -to be ⁇ joined together; a preliminary yarn servicing section including means for detecting, tensioning, and cleaning the yarn supplied to the mandrel; and an enclosed control section for superintending the various other sections and controlling the functioning thereof.
  • the yarn packages were mounted in fixed position and, since either package had to be capable of serving as the active supply, the positions thereof necessarily represented a compromise between the most satisfactory position for the active package, i.e., with its axis in close alignment with the path of the yarn to the winding mandrel, and the most satisfactory position for a reserve package, spaced from the active package to avoid interference therewith but nevertheless accessible for servicing.
  • the principal object of the present invention ltofconstruct a self-activating yarn supply package indexing mechanism for winding machines, particularly of the fully automatic type just described, which mechanism is adapted to index a fresh supply package from a reserve position to active unwinding position and the exhausted supply package from unwinding position to a reserve position at the same time as the free end from the reserve supply'is introduced into the winding operation.
  • a further object of the invention is an automatic supply package index mechanism for Winding machinesk and package indexing is prevented when the thread merely 31,081,045 Patented Mar. 12, 1963 2 breaks -and is subject to repair by instrumentalities provided for this purpose on the machine.
  • an additional object is an improved device for detecting early in the supply section the availability of yarn from the package in unwinding position for preventing yarn ⁇ change-over and package indexing when the flow of yarn to the winding mandrel has been interrupted due to breakage but is nevertheless available at the service section t-o the end-finding and conveying means.
  • Another object is a yarn Idetecting device as just described which is combined with the yarn tensioning array and affords a means of releasing the tension on the yarn during an end-iinding and tying cycle and/or a yarn change-over cycle.
  • a further object of the invention is an improvement in lthe manner of retaining the free end of yarn from the reserve package in ready position and for guiding that end to a position accessible to the end-finding means during yarn change-over.
  • a still further object of the invention is an improved mechanism for openinga yarn slub catcher during an endiinding yand tying and/or yarn change-over cycle and for guiding the supply end of the yarn to the slub catcher as that end is being conveyed to the knot-tier for union with the free-end from the package being wound.
  • FIG. 1 is a View, partly in right side elevation and partly in section, of the automatic supply package indexing mechanism and improved yarn servicing section of the invention in ⁇ association with an automatic winding machine of the ,previously mentioned patent, only a fragment ofthe control section Vthereof being shown;
  • FIGS. 2 and fr3 are fragmentary detail views .in plan and left side elevation, respectively, ofthe mounting and driving arrangement for the supply end-finding and conveying means;
  • FIG. 4 is a top plan view ofthe supply package indexing clutch in association with the actuating member therefor ⁇ and mounted inoperative position' within the ⁇ yarn servicing section housing, the top panel thereof being removed;
  • FIG.. 5 is a view in front elevation of the clutch Vand actuating member of FIG. 4, taken in section along line 5-5 of FIG. 4, and also revealing the combined yarn sensing and tensioning device in operative relationship ment ⁇ for the package indexing shafts in operative rela! tionship to the clutch;
  • Y I-TIGS. 10 and 11 are detail views taken in section along lines 10-10 and 11-11, respectively, of FIG. 6;
  • FIG. 12 is 4a perspective view of the clutch latch actuating member
  • FIGS. 13-17 are top plan views of a development of the cam surfaces of the clutch latch actuating member, showing the principal positions taken by that member with respect to the cooperating guide pins during the cycle of the member; n
  • FIG. 18 is an enlarged detail view, mainly in section, of the combined yarn sensing and tensioning device, showing the relationship of the guide pins to the cam surfaces of the clutch latch actuating member;
  • FIG. 19 is an enlarged detailed view in perspective showing the lower disc of the yarn tensioning array and the guide wall for maintaining the yarn in such array;
  • FIGS. 2() and 2l are top plan and bottom plan views, respectively, of th top panel of the yarn servicing section;
  • FIG. 22 is an enlarged view in perspective of a yoke connecting certain operating links
  • FIG. 23 is a front end view, in full scale, of the slub catcher
  • FIG. 24 is a right side elevational view of the slub catcher
  • FIG. 25 is a view, partially in side elevation and partially in section, of the slub catcher operating means
  • FIG. 26 is an enlarged detail view in perspective of the yarn guide at the front end of the servicing section
  • FIG. 27 is an elevational view of the front end of the suction tube of the supply end-finding means, showing the closure plate for the tube;
  • FIG. 28 is a sectional view of the suction tube taken substantially along line 28-28 of FIG. 27;
  • FIG. 29 is an enlarged View in perspective of the closure plate operating cam.
  • FIG. 30 is a plan view of waxing attachment platform on the servicing section top panel.
  • the present invention 4 may be characterized in the following manner. From the front end of the control casing of the winding machine extends a bracket which supports the housing of the yarn servicing section. Upon the top panel of this housing are mounted the several devices which service the yarn on its way to the winding mandrel including various guides, a combined yarn tensioning array and yarn sensing device, a yarn waxing attachment, and a yarn slub catcher. Spaced below the front end of the servicing section housing is a supporting frame member and a plurality of concentrically arranged shafts extend between the frame member and the bottom wall of the section housing, being journaled therein for independent rotation. The inner shaft is constantly driven by means of a driving connection for the lower end thereof beneath the supporting frame member, and the outermost shaft, which is normally held against rotation, supports at least two yarn supply packages at circumferentially spaced positions with respect thereto.
  • a clutch for establishing a driving connection between the upper end of the inner shaft to rotate the normally restrained outer shaft as well as the supply packages supported thereby, which clutch is of a semi-revolution type operated by a latch and is adapted to rotate the outer shaft the number of degrees corresponding to the spacing of the packages.
  • the timing of the clutch is such that upon disengagement thereof, one of the packages is halted in active unwinding position, and the remainder in reserve position, at which positions they remain until the clutch is again activated.
  • the clutch actuating mechanism consists 4of a pivotally mounted member having on one side thereof a radially projecting toe or kicker which, as the member rocks, is adapted to engage the latch of the clutch to actuate the clutch and on the opposite side thereof, a circumferen- 4- tial pattern of camming surfaces by which the member is positioned axially to locate the path of the toe either to engage or to clear the clutch latch.
  • an axially movable pin having a body portion projecting above the top panel of the yarn servicing section housing and provided with a shoulder to engage the yarn moving to the winding mandrel, whereby when yarn is present at this shoulder the pin is held free of the camming surfaces and when the yarn is absent, the pin drops into engagement with the camming surfaces to cause the clutch to be actuated to index the supply packages.
  • a fixed guide pin projecting below the bottom surface of the housing top panel works in conjunction with the axially movable pin.
  • the clutch latch actuating member is connected by a series of links to the supply end-finding means and is rocked about backwardly and then forwardly to original position as the end-linding means passes through the end-finding cycle.
  • a disc tension array Arranged concentrically with the yarn sensing pin is a disc tension array, the bottom element of which is stationary and the top element of which is movable along with the yarn sensing pin, and the camming surfaces on the clutch actuating member are so arranged that during the return portion of its cycle the sensing pin and the top member of the disc tension array are elevated to permit the yarn to enter the array and engage the shoulder on the pin.
  • At the back end of the yarn servicing section top panel adjacent the control section of the winding machine is at least one slub catcher for causing rupture of the yarn in the event of an abnormal change in the diameter thereof and the slub catcher is pivotally mounted for bodily movement toward and away from the top panel.
  • An operating arm formed integrally with the slub catcher projects downwardly into the servicing section housing, which finger is engaged through a camming latch by means of a lever arm carried on the link connecting the clutch actuating member with the yarn end-finding means, whereby movement of the links during the end-finding cycle causes the slub catcher to be pivoted to permit the supply end of yarn to ⁇ be guided thereto and then returned to operative slub catching position.
  • a suction duct connected by a flexible hose to a source of suction in the control section housing, which duct communicates with a plurality of suction openings in the top cover of the yarn servicing section housing, there being one such opening adjacent each of the slub catcher and yarn sensing and tensioning device to maintain these devices free of lint, and a third which is adapted to hold the free end of yarn coming from the reserve supply package in readiness for a change-over from one supply package to another supply package.
  • the supply end-finding and conveying means is in the form of a curved suction tube mounted on the control section for rotation through an arc of approximately from a rest position adjacent the knotter to an end-finding position adjacent the yarn sensing and tensioning device and back again.
  • a cover plate adapted to be closed by a cam provided on the service section top panel after the supply end has been drawn into the tube so as to clamp the yarn to the tube, the cover plate including cooperative knife edges to sever excess yarn and being opened at the knotter to deliver the yarn thereto.
  • the housing of the control section for the winding system consists mainly of a U-shaped frame 29 comprised of a horizontally extending base 21 and opstanding sidewalls 22 and 23, the latter of which, being closer to the observer, has been cut away to reveal certain of the working parts enclosed within the housing.
  • Frame 20 rests upon a bed, part of which is indicated at 2.
  • the end-finding and conveying means for the supply end of yarn which consists of an inverted, generally U-shaped tube i155, of which only the lower end portions can be seen in FIG. 1.
  • the end of tube 155 adjacent the frame 20 (dotted lines in FIG.
  • sleeve 163 jcurnaled for rotation in a bracket 158 which is secured ⁇ to the base 21 of the frame and includes two vertically spaced apart bearing portions 156 and A162 for supporting that end of the tube.
  • bracket 158 which is secured ⁇ to the base 21 of the frame and includes two vertically spaced apart bearing portions 156 and A162 for supporting that end of the tube.
  • the lower end of sleeve -163 is encircled by a bevel pinion 168, keyed or otherwise affixed to the tube for rotation therewith, which pinion is in meshing relationship with a mating .bevel gear 169 (FIGS. 2 and 3), carried on one end of a horizontal stub shaft 1170.
  • Shaft “179 is journaled for rotation in a horizontal sleeve bearing 160 for-med as an integral part of bracket 157 and carries on its other end, i.e., the end facing the observer in FIG. l, a spur gear 171 which is to be adapted to be rotated by ⁇ means of a segment gear 172 rocka-bly mounted on a stud shaft y173.
  • the said stud shaft 173 is, in turn, supported by a bracket 175 resting on the base 21 of frame 2i).
  • a thread breakage lever 625 having-a horizontal section 633 (shown in section in FIG. 1) extending transversely across the path of the yarn on its way to the winding section (not shown) of the machine.
  • Rotation of shaft '170 leads, in turn, to rotation of supply end-finding tube 155 4by virtue of the meshing relationship of bevel gear 169 ⁇ and bevel pinion 168, whereby tube 155 is swun-g from la retracted rest position ladjacent the upper forward end of frame 20 and the knotter (not shown), downwardly and forwardly to seek out and engage the supply end of the-broken thread, after which tube 155 is Vreturned tolinitial position to convey this end to the knotter to be united with the end of the broken thread from the package being wound.
  • the position of the forward end of tube (shown in PIG. 1) is approximately that of the tube on its way to seek out the supply end.
  • Tube 155 is hollow throughout its length and the bore thereof communicates with a bore 159 in bracket i157 which, in turn, communicates With a suction or vacuum chamber 183 extending below base 21 of iframe 2f).
  • the base 21 of frame 20 is extended forwardly -as at V21a to serve fas a bracket for the attachment of the back end of the yarn servicing section housing 30.
  • This housing is Igenerally in the shape of an elongated box, having a lateral offset 32
  • Comprising housing 30 is a bottom wall 34 having an inclined rear portion 34a affixed 'at its rear end to the forward end of the frame extension 21a and a horizontal front portion 3417, right and left side walls 36 and 38, respectively (FIG.
  • housing 30 is at least partially open to accommodate certain operating links.
  • Each of 'arms ⁇ 52, 54 is provided adjacent the ⁇ radially outermost vend thereof with an opstanding pin or post 56 which is 'adapted to hold a yarn supply package (see FIG. 9), shaft 60 projects through an aperture inY the horizontal portion 3411 of the lower wall 34 of housing 30, a bushing 62 being interposed Vbetween the aperture edge and the shaft surface.
  • a second shaft 64 extends through the length of tubular shaft 60, Abeing held in concentric relationship therewith by means of a tubular bushing 66 so as to be rotatable independently of tubular shaft 60. At its lower end, shaft 64 passes through and beyond pedestal 46 and rail 44, terminating with a bevel gear 68.
  • Iarm 69 which supports for free rotation ⁇ a shaft 71 carrying at its free forward end a bevel 'gear 73 having meshing relationship with bevel gear 68.
  • Shaft 71 extends rearwardly from rail 44 beneath the machine and is connected at its rear end, in a manner not Ishown in the drawings, to a suitable source of power so that during the operation of the machine, shaft 71 undergoes constant rotation and transmits that rotation to internal shaft 64.
  • a generally rectangular base plate 70 is secured to the horizontal portion 34b of bottom wall -34 of housing 30 in the area of offset portion 32 thereof as by means of bolts 72 passing through two oppositely situated corners thereof, base plate 70 being held in slightly spaced relation to lthe upper surface of lloor .
  • portion 34b by means of spacers 74 interposed between the lower surface of the plate and fthe upper surface of housing oor.
  • Spacers 74 may be constructed as separate collars or as bosses formed integ-rally with the housing floor.
  • plate 70 In its center, plate 70 is provided with a circular aperture '76 for penetration by the concentric arrangement of shafts, and free rotation of tubular external shaft 60 with respect to plate 70 may be assured by extending bushing 62 between lthese two components, as at 78.
  • Bushing 62 may also be formed with an enlargement y80 having oppositely facing shoulders for contacting plate 70 and bottom wall portion 34b, and when so constructed enlargement 80 assists spacers 74 in maintaining the proper spatial relationship of plate 70 with respect to the floor surface.
  • disc 82 functions as the driven element of the clutch.
  • the driving element of the clutch is constituted by a second disc 86 with a periphery composed of alternating notches 88 and projections or teeth 90.
  • Notched disc ⁇ 86 is keyed to the upper portion of internal shaft 64 at a level spaced slightly above the plane of lug disc 82, being clamped between a nut 92 in thread-wise engagement with a threaded enlargement 94 on shaft 64 and a flange 96 at the lower end of the enlargement.
  • a Iflat V-shaped member 98 l is pivotally mounted, at its midpoint, fto disc 82 by means of a stud 100 offset from the disc axis.
  • member 98 is extended or prolonged, as at 102, to project slightly outside the normal periphery of disc 82, and on the external side of one such arm is an upstanding lug v104 of a suitable shape and vertical dimension to engage with any one of the notches 88 around the periphery notched disc 86.
  • kMember 98 is urged in a counterclockwise direction (in FIG. 6) by means of a spring 106 connected at one end to an ear 108 bent up from the internal side of the same arm -which carries upstanding lug 104 and at the other to a tongue 110 upstanding from the upper surface of disc 82.
  • Spring 106 tends, therefore, to rock V- shaped member 98 relative to disc 82 about its axis on stud to engage lug 104 with one of the notches on the periphery of notched disc 86 (the parts being shown in engaged position in FIG. 6), and when the lug and a notch are so engaged, the two discs 182 and 86 are coupled ytogether to cause external tubular shaft y60 to rotate.
  • Latch 114 (seen in plan in disengaged position in FIG. 6) is formed as an elongated plate pivotally mounted adjacent one end on a stud 116 affixed on the forward unoccupied corner of base plate 70 and is provided at the opposite end thereof with an upstanding detent 1118.
  • the pivoted end of latch 114 is extended longitudinally to form an ear 1115 to which is connected one end of a tension spring 117 stretching more or less parallel to the latch axis to a pin 119 embedded in the floor 34h of housing 30.
  • the opening 121 in latch 114 through which stud 116 passes is elongated slightly longitudinally of the latch for a reason to be explained in a moment.
  • Spring 117 biases latch ⁇ 114 to the left (in FIGS. 4 and 6) as far as elon gated opening 121 permits and also counterclockwise toward the periphery of the discs.
  • a stop 123 on the upper surface of base plate 70 limits the movement of latch 114 to just prevent detent 118 from engaging the normal periphery of disc 82.
  • detent 118 terminates between upper surface of V-shaped member 98 and the lower surface of notched disc 86 so that it is adapted, when latch 114 is against stop 123, to engage one of the lugs 84 on disc 82 as well as one of the prolonged ends 102 of V-shaped member 98, these parts being shown in engaged position in FIG. 4.
  • detent 118 remains adjacent the periphery of disc 82 in engagement with a lug 84 and an extension 102, it will be seen that V-shaped member 98 is rocked about stud 100 to hold lug 104 away from the notches on the periphery of notched disc 86 with the result that notched disc 86 rotate freely while disc 82 and the external shaft 60 remain stationary.
  • V-shaped member 98 will pivot about stud 100 under the influence of spring 106 to place upstanding lug 104 in engagement with one of the notches 88, coupling discs 82 and 86 together, whereupon the rotation of shaft 64 is transmitted to external tubular shaft 60.
  • the pivotal movement of V-shaped member 98 upon the release of the latching detent 118 causes extension 102 to be shifted forwardly of, or in leading relation to, the lugs 84.
  • a back-latch 120 is also mounted for pivotal movement with respect to stud 116 and is provided on its front edge adjacent its free end with an upstanding detent 122 and on its rear edge adjacent the same end with a downwardly bent tongue 124 adapted for engagement with a slot 126 provided for this purpose in latch 114.
  • Slot 126 is enlarged with respect to tongue 124 to give limited free motion in an outer direction to backlatch 120 relative to main latch 114.
  • the longitudinal dimension of backlatch 120 is such that the extreme termination of upstanding detent 122 engages the trailing edge of a lug 84 on disc 82, when the forward edge of the lug is engaged with detent 118.
  • latch 114 Movement of latch 114 to release lug 84 and extension 182 is achieved through an operating linger 132, ⁇ formed integrally with latch 114, which extends downwardly and outwardly from the latch edge vadjacent stud 116 past base plate 70, as at 134, and terminates in a lateral extension 136. lt will thus be seen that by striking the lateral extension 136, latch 114 will swing outwardly to initiate a cycle of operation for the clutch;
  • the means for acting upon finger 132 to release latch 114 comprises a rockably mounted member having a latch actuating foot on one side and camming surfaces on the circumference of the other side, which member is best seen in FIGS. 1, 4, and 12.
  • a post 140 depends from lthe undersurface of the top panel 42 of housing 38 and ends in a boss 142 transversely bored as at 144 (see FG. 13) to receive and rigidly support a transversely disposed stub shaft 14-6.
  • Shaft 146 as shown in FiG.
  • Latch operating member 150 itself is a three-dimensional solid of highly irregular configuration (see FIG. 12) and comprises, in general, a hub portion 184 penetrated by a bore 185 to admit shaft 146, a foot portion 186 projecting more or less radially from hub portion 184 at the end thereof adjacent post- 140, a crank arm portion 187 on the same end of hub portion 184 and projecting radially in more or less diametrically opposition to foot portion 186, and a circumferential cam surface portion 188, all in integral combination. As can be seen from FIG. 1 and FG.
  • crank arm portion 187 carries adjacent the free end thereof a laterally projecting pin 189 which is adapted to be connected to a link 190 for rocking member 150 relative to its supporting shaft 146; and, when in inoperative position, member 150 is positioned with the crank arm portion projecting forwardly to the extent permitted by link 190 with the foot portion 186 projecting rearwardly.
  • link 190 is moved rearwardly, member 150 will be rocked in a clockwise direction in FIG. l, causing foot portion 186 to swing downwardly past latch operating linger 132.
  • cam surfaces on circumferential portion 188 is, under certain conditions, to impart lateral motion to member 150 away from post 140, i.e., to the left in FIG. 5, in order that finger 132 will then be in the path of foot portion 186 and will be tripped to disengage clutch latch 114 as member 150 rocks.
  • cam surfaces on circumferential portion 188 may be divided into two areas: those surfaces in the area to the right in FIG. 12 or below in FIG.
  • a 4more or less centrally located shoulder 194 which are adapted to cooperate with -axialry movable pin 192, andthose surfaces in the area to the left .of shoulder 194' in FIG. 13, which are adapted to cooperate with ixed pin 193.
  • Shoulder 1'96 lies Within a plane transverse to the member axis for a stretch adjacent the rear end of initial flat surface 19S, and then deviates obliquely toward post 141i for a short'stretch as at 197.
  • an upwardly inclined surface 198 abruptly terminating in a sheerwall 199 which constitutes the rear wall of a recess 200.
  • the oor 201 of recess 200 is curved concentrically with hub portion 152 and atits mid-point is a step 202 defined by an inwardly inclined shoulder 203 risingfrom floor 201 and Vmerging at its front end with a transverse shoulder 203 which, in turn, intersects at its front end with an'axial shoulder 204.
  • the curved licor 201 of recess 200 continues beyond axial shoulder 284 and joins at its front end with an upwardly inclined surface 205.
  • Surface 205 at its upper end, merges into a short circumferential front end surface 286, Vthe last of the surfaces of the first area, the radius of surface 206 being somewhat greater than that of initial fiat surface 195.
  • the inside wall of recess 200 is constituted by a shoulder 207 of varying vertical dimension, which amounts to a transverse extension of shoulders 196 and 197, until it disappears at front end surface 206.
  • Front end surface 206 is extended, as at 208, laterally in a direction away from post 140, and extension 208 merges at a rear end into the top surface of a rib 209.
  • Rib 209 bounded on the one side, i.e., remote from post 140, by shoulder 194 and on the other by shoulders 207, 196, and 197 and stretches all the way back to the rear end of circumferential portion 188, at which end the rib surface is spaced radially outwardly of and generally parallel to initial fiat surface 195. Between its ends, the top surface of the rib is slightly flattened from true concentricity with hub portion 184.
  • the area of circumferential portion is composed of an elongated transverse channel 210 extending the full length of the portion 188 and defined on the one side by shoulder 194 and on the other by a rib 211. At both its ends, rib 211 stops short of the ends of channel 210, the front end thereof being aligned with the upper end of incline 205, with the rear end aligned between the extremes of shoulder 197 and terminating in an outwardly inclined shoulder 212.
  • projection 214 having a forwardly and outwardly inclined shoulder 216 terminating in a plane spaced outwardly of the exterior limit of rib 211 and connected at its rear end with a shoulder 218 stretching parallel to rib 211 to the end of circumferential portion 188.
  • projection 214 is an extension of rib 211 separated from the rear end thereof by an inwardly flaring slot defined by shoulders 212 and 216.
  • the plane of shoulder 218 is aligned about mid-way between the planes of the side walls of rib 211.
  • the bottom wall of channel 210 is curved concentrically with hub portion 184 along a slightly shorter radius than that of initial fiat surface 195 (see FIG. 5).
  • the bottom wall of channel 210 may be extended on the outside of rib 211, as at 219 (see FIGS. 5 and 13); otherwise, the side of circumferential portion 188 may be cut olf in line with the outer wall of rib 208, except for projection 214.
  • FIGS. 13-16 An understanding of the purpose of the various surfaces provided on the circumferential section 188 may be best obtained with reference to FIGS. 13-16.
  • pin 192 is restrained against all movement other than axial, and pin 193 is wholly fixed, while member 150 is free both to rotate about its own axis and to undergo bodily movement along that axis.
  • the position of the two pins changes, in actuality, this not the case. Rather, the pins are fixed and member 150 moves.
  • actuating member 150 begins with the parts in the position shown in FIG. 13, namely, with pin 192 resting on surface 195 spaced slightly from shoulder 196 and pin 193 contacting shoulder 218 to maintain member 150 slightly spaced away from collar 148 on supporting shaft 146.
  • pin 193 will engage the inclined shoulder 197, causing member 150 to be shifted slightly further away from collar 146 and post 140.
  • Shoulder 197 insures that fixed pin 193 will not enter the slot between rib 211 and projection 214 but will remain in cha-nnel 210 as the slot moves past. Once fixed pin 193 is past the slot (FIG.
  • member 150 will be cammed further away from post 140, holding shoulder 207 out of frictional contact with movable pin 192 as might tend to restrain pin 192 against axial movement.
  • member 150 soon brings pin 192 to inclined surface 198 which initially lifts the pin (which is free to move only axially as already indicated) for a purpose to be explained subsequently.
  • the pin 12 drops into recess 200 at least to a point corresponding to the radius of initial surface 195.
  • pin 192 is free of all restraint and thus able to drop into engagement with the bottom wall 201 of recess 200 or is held against downward movement for a reason to be explained shortly. If the latter is true, pin 192 remains at about its initial level, as the rotation of member 150 proceeds until it is contacted by the upper end of incline 205 and is lifted onto front end surface 206.
  • clutch latch 114 must be free to return to clutch disengaging position almost immediately after rotation of the coupled clutch elements begins and it will be seen that inclined shoulder 203 of step 202 in the center of recess 200 is quite short in length and only a lfew more degrees of rotation of member 150 is necessary to bring axial shoulder 204 past pin 192, allowing member 150 to shift bodily back to a position relatively near post to the limit determined by the engagement of fixed pin 193 with the inner side of rib 211.
  • movable pin 192 Toward the end of the rocking movement of member 150, movable pin 192 will encounter the inclined surface 205 by which it is lifted from the bottom of recess 200 up to the front end surface 206.
  • member 150 rotates or rocks in the reverse direction indicated by the arrow in FIG. 16 with pin 192 riding in upwardly displaced position on the top surface of rib 209.
  • Fixed pin 193 moves adjacent the external wall of rib 211 until inclined shoulder 216 of projection 2114 is encountered (FIG. 17).
  • member 150 throughout most of the second half of its cycle, is in maximum proximity to post 140. Consequcntly, foot portion does not engage latch operating finger 132 but swings clear of the outward end thereof.
  • pin 193 has encountered inclined shoulder 216 on projection 214, continued rearward movement of member 150 causes the member to be shifted in an axial direction slightly away from post 1140.
  • shoulder 216 on projection 214 is in approximate alignment, in an axial direction, with inclined shoulder 197 on rib 209 and the combined axial shifting and rotational movement of member 150 leads eventually to pin 192 dropping off the top surface of rib 209 into contact with rea-rend surface 195. This completes the cycle and the parts are now in readiness to start another cycle at the appropriate time.
  • top panel 42 of housing 30 is provided on its undersurface at a point spaced somewhat rearwardly of its front edge with a ⁇ downwardly directed boss 2215()l in Iwhich the upper end of pin 193 is embedded.
  • the length of pin 193 need not be, and preferably is not, so great as to bring its lower end into actual contact with the concentric bottom wall of channel 210. Some separation between ther pin end and the channel bottom allows for any slight irregularities in that wall. However, pin 193 must project to some extent into the channel to engage the sides of rib 211.
  • a circular aperture248 adapted to receivethev lower end of sleeve 246.
  • Sleeve 246 is prevented ⁇ from passing entirely through aperture 24S by an integral annular tiange 250, contacting the marginal'edges of the panel surface, and is checked against upward movementl by aV lock washer 252 encircling its lower end and engaging the lower face -is supported wholly by the lower tension disc.
  • plunger 244 shall be free for sliding movement within sleeve '246 and friction between the adjacent surfaces of the two parts, which might tend to interfere with such free sliding movement, may be reduced by relieving the periphery of plunger 244 over a major portion of its length, as at 254. About midway of its length, plunger 244 is severely reduced in cross-section, as at 256, to dene a shoulder 258, which is adapted to engage the strand of yarn Y, and solong as strand Y is present at this shoulder, plunger 244 will be maintained in upwardly displaced position essentially shown in FIG. 18 and pin 192 will be precluded from descending into recess 200 on latch finger actuating member 15).
  • the yarn gains access to shoulder 258 on plunger 244 through a slot 260 transversely cut into the periphery of sleeve 246 and terminating inwardly approximately on a diameter of the sleeve.
  • the yarn detecting plunger and its guiding sleeve is combined with the disc tension array which is adapted to impose tension on the yarn as it travels to the winding mandrel.
  • opposed concavoconvex .tension discs 262 and 264 are mounted on sleeve 246, the center portion of the discs being depressed, as at 265, and formed with circular apertures 268 and 270, respectively, large enough to t loosely around the sleeve.
  • Sleeve 246 may have an annular step 271 adjacent iiange 248 to provide a tighter iit with the aperture of the lower disc.
  • upper disc 262 is adapted to be lifted away from lower disc 264 by means of a tubular cap 272, preferably formed of plastic, enclosing the upper end of sleeve 246.
  • the lower end of cap 272 extends between sleeve 246 and the inner edge of aperture 268 in upper disc 262 and terminates in an annular projection engaging the lower marginal surfaces of disc 262 adjacent aperture V268.
  • a bolt 274 having a flat head 276 is axially threaded into the upper end of plunger 244 for longitudinal adjustment relative thereto, head 276 being adapted to abut the end Wall 278 of cover '272t
  • the vertical level of bolt head 276 is so selected by varying the effective length of screw 274 that the mutually facing surfaces of tension discs 262 and 264 are in contacting relationship to impose tension on the yarn when pin 192 at the lower end of plunger 244 rests on the rear end or initial surface 195 of the circumferential portion 18S of clutch latch finger actuating member 159, This is the normal position of the parts when the unwinding operationis proceeding normally and is illustrated in FIG.
  • a washer 277 may be placed thereon, a felt pad 279 being preferably interposed between the washer and the upper surface of the-upper disc.
  • the running position of the yarn indicates that the yarn approaches the sensing and tensioning device from the left and it is desirable that guiding means be provided to insure that the yarn does not become inadvertently entangled with the lower edge of lower tension disc 264.
  • guiding means has been found to be an arcuately shaped shield 280 (best seen in FIG. 19) extending approximately half way around the circumference of the device on the left side, the upper edge of the shield being inclined from front to rear from a level just below the upper limit of the lower tension disc at its front end to a somewhat higher level between the vertical limits of the upper tension disc 262 at its rear end.
  • Introduction of this strand to the device also may be facilitated by mounting the same upon a slightly raised platform 282 formed on the upper surface of housing top panel 42, the side walls of such platform being curved downwardly and outwardly to merge smoothly with the top surface of panel 42.
  • the construction of the parts constituting the combined yarn sensing and tensioning device is obviously such as to tend to accumulate lint, dust and other foreign matter which could possibly cause malfunctioning.
  • the interior of the device may be kept free of such material by the provision of a series of slots 286 located at spaced points around the depressed central portion 265 of lower tension disc 264, the open lower end of the lower disc lying over an aperture 288 passing through top panel 42 and communicating with a suction duct 290 to be more fully described later.
  • Yoke 296 is supported from a rearwardly and downwardly inclined post 29S depending from the undersurface of top panel 42 adjacent the rear end thereof and supporting a laterally directed -stud shaft 30G; Yoke 296 is formed in two parts 302 and 364, part 302, which constitutes the arm of the yoke connected to link 199, having an offset extension '306 at the lower end thereof and part 394, which constitutes the remaining arm of the yoke, is in the shape of a dogleg with the lower end enlarged as at 365, the whole of part 304 lying in a single plane.
  • Both of arms 392 and 364 are pivoted on shaft 360 intermediate their ends with the lower offset extension 396 of arm 302 secured in juxtaposed relationship to the enlarged end portion 305 of arm 394 by a bolt and nut 363.
  • the aperture for accommodating bolt 3% in the enlarged end of arm 30.4 is elongated in the nature of a slot, as at 310, the relative radial positions of the two arms on shaft 309 being therefor variable within the limits of this slot.
  • planar arm 304 is pivotally connected to the forward end of a downwardly and rearwardly extending connecting rod 312, the rear end of which is pivoted on a generally downwardly projecting arm 314 formed as an integral part of driving gear 169 for the supply end-finding means.
  • Gear 169 is, of course, located within the control section, as already described. The radial position of arm 314 with respect to remainder of gear 169 is so selected that when the supply end-finding means 1s in rest position, arm 314 is in maximum forward position and, similarly, link 312, yoke 296, line 19? and clutch latch actuating member 150 are in maximum :forward position with movable pin 192 resting on the 16 rear end surface 195 of circumferential portion 188.
  • gear 169 rotates with shaft 170 under the driving iniiuence of segment gear 172 mating with spur gear 171 and, consequently, arm 314 will rotate also in a rearwardly direction, pulling on line 312, yoke 296, and link to rock member 15G from forward to rearward position as the supply end-finding means rotates forwardly to locate the supply end.
  • the supply end-finding means after having found the supply end (or failed to do so), returns to rest position, member 15G ⁇ and the parts by which it is connected to the gear 169 will likewise be returned to starting position.
  • mem-ber 150 is motivated from, and in timed relation to, the supply end-finding means and the cycle of operation of member 150 corresponds to that of the endnding means.
  • slub catcher 320 ⁇ consists of a slub-engaging blade 322 and a guide blade 324 mounted in fixed spaced-apart relationship at right angles to the surface of panel 42 on a bifurcated frame 325 having a hub or body section 326 and two spaced parallel arms 327 and 328 projecting from the body section.
  • Frame 325 is supported for bodily rocking movement toward and away from the upper surface of top panel 42 about a shaft 329 held above the top panel and extending through hub portion 326.
  • Blades 322 and 324 are disposed with their planes transverse to the length of housing 30, guide blade 324 being somewhat longer than the other and, when in operative position, the lower edge of blade 322 is spaced very slightly from top surface of a rectangular plate 330 attached to top wall 42 and constituting an anvil for the blades while the lower edge of blade 324 is spaced slightly to the rear of and just below the top surface of that plate.
  • the blade-supporting frame 326 includes an integrally formed leg 332 projecting downwardly from rear arm 323 into the interior of housing 30' for a reason that will be explained shortly.
  • a thin cutting blade or knife 334 Arranged between blades 322 and 324, preferably adjacent the latter, is a thin cutting blade or knife 334, by which the thread can be severed at will.
  • knife 334 is cradled for tilting movement with its upper edge seated in the crotches of two spaced-apart inverted V-shaped portions 336 formed as a part of supporting arm 328 and is biased upwardly into said crotches by means of a tension spring 338 connected at one end to a laterally projecting tongue 340V bent forwardly from knife 334 and at the other to a vertical extension 342 on arm 328.
  • Spring 338 is normally operative to hold knife 334 upwardly and forwardly away from rear blade 324 and anvil plate 330 tothe extent permitted by the inverted V- shaped portions 336 but is adapted to be tilted or rocked downwardly into yarn cutting position, shown in dotted lines in FIG.
  • rod 334 pivotally supported in two ears 346 bent downwardly from opposite ends of hub portion 326 of frame 32S.
  • the end portion of rod 344 adjacent knife 334 is bent downwardly to contact the knife and exert leverage thereupon, and the other end portion is lbent in the form of a crank, as at 348.
  • Rod 344 is restrained against axial movement with respect to ears 346 by stop washers 350.
  • the crank end portion 343 of rod 344 is pivotally connected to one end of a downwardly and rearwardly directed link 352 which is connected to its other end to a reciprocable operating member 354 therefor. Only a short length of member 354 is visible in FIG.
  • the supporting frame 325 of slub catcher 320 includes a downwardly projecting leg 332 and it is by means of this arm that the slub catcher is adapted to be rocked toward and away from lanvil plate 330 in the following manner.
  • a spring 362 extends between the lower end of lever 360 and link 190 to bias the lever in a counterclockwise direction in FIG. 25 to the extent ermitted by a stop tab 364 bent laterally from the front lever edge.
  • lever 360 engages a finger-like extension 366 of a latching cam plate 368 ⁇ disposed in parallel relationship to the under surface of panel 42 with the end thereof opposite extension 366 pivoted on a vertical pin 37()L aiiixed to a rear extension 372 of top panel 42.
  • cam plate 368v Formed integrally with cam plate 368v is an arm 374 projecting at an oblique angle to the normal axis thereof and arm 374 is connected at its remote end to one end of a spring 376 having the opposite end thereof secured to a post 378i depending from the bottom surface of top panel 42.
  • Spring 376 biases plate 368 through arm 374 in a direction counterclockwise in FIG. 2l.
  • Extending inwardly into plate 368 between arm 374 and extension 356 is a slot 380 including an outer oblique portion 381, bounded on one side by the inner side of arm 374 and on the other by a parallel edge 382, and a square inner portion 383.
  • leg 332 of the slub catcher projects downwardly into slot 380* and is adapted to be engaged by the slot edges, the inclined edges of the oblique portion 381 functioning as cam surfaces and the right angular edges of inner portion 383 as latching surfaces for the leg.
  • Swinging movement of plate 368 brings an inclined edge of the oblique slot, i.e., the inner edge of arm 380, into contact with the adjacent edge of leg 332, whereby the leg will be away from extension 372, rocking the slub catcher frame 325 upwardly and away from anvil plate 330 and lifting slub ⁇ catcher blades 322 and 324 away from the anvil surface.
  • lever 360 will move past extension 366, permitting spring 376 to return plate 368 to initial position.
  • the slub catcher falls under its own weight to operative position to be locked therein by virtue of the engagernent of the opposite sides of leg 332 with the right angular edges of inner slot portion 383.
  • the slub catcher is also subject to lint and foreign matter accumulation and means may be advantageously provided for removing this material.
  • this means takes the form of an elongated transverse slot 384 (see FIG, 20) passing through top panel 42 of housing 3u and anvil plate 330 adjacent and parallel to the front slub catcher blade 322.
  • the interior end of aperture 384 communicates with a source of suction, which is preferably the same as that provided for the combined yarn sensing and tensioning device at the front end of the servicing section.
  • suction duct 290 extends, in generally V-shaped configuration, along the undersurface of top panel 42 (see FIG.
  • a exible hose 390 ⁇ is connected to the extreme rear end of duct 290, which is formed with a downwardly directed tubular neck 392 (FIG. l) for this purpose, the other end of hose 390 ⁇ being connected to main suction chamber 183 extending beneath the frame of the machine.
  • Suction aperture 384 by virtue of its location immediately forward of the ⁇ slub catcher, is adapted to serve a function other than is always a possi-bility that, in the course of the manipulation of the package being wound durin-g an end-finding and uniting cycle, slack could develop in the length of yarn extending across the servicing section and allowing the sensing pin plunger 244 to move downwardly, resulting in a false indication of the absence of yarn at the sensing device.
  • the path of the yarn to the slub catcher extends over aperture 384, which is elongated to take care of minor variations in yarn position, and, if slack should exist, it would be taken up by the action of the suction upon the yarn.
  • Aperture 384 also maintains the yarn taut while pin 192 is riding on rib ⁇ 269 during the second half of the endiinding cycle to facilitate its engagement by the endiinding means.
  • reserve end Y stretches :over to the left side of housing 30 and then downwardly to reserve package S2, and as reserve package S2 undergoes translation fromreserve to active position, the yarn must, of course, follow behind.
  • a guide 392 extends around the corresponding side land fnont portion lof the housing with its ends embedded or otherwise aiiixed to, in the appropriate housing walls.
  • guide 392 is bent upwardly into a tight loop, as at 394, which acts to rkeepl the yarn from :sliding loif the guide in ⁇ a rearward direction, the lev'el of loop 394 being above the top surface of housing top panel 42 (FIG. 1). From this elevated point, at its effective rear end, guide 392 extends :in a general-ly smrooth curve downwardly and around the corner 'of the housing and, adjacent its front tend, is bent tinto yarn guide eye 396 in vertical alignment with the axis with ⁇ the supply package S1 in active unwinding position, Ithe manner in which the guide is bent to form eye 396 being such that the yarn will automatically enter the eye as it slides on the guide (see FIG. 26).
  • the extreme front end portion of the guide is bent outwardly from eye 396 in essentially loop-shaped configuration 398, one side of the loop forming an effective yarn stop.
  • An arcuate protective shield 397 may be placed at the front of housing 30, the right end thereof being open for the yarn to reach the guide eye.
  • Suction tube 155 which constitutes the essential element of the supply end-finding means, swings, as already indicated, in a more or less semi-circular path and the portion of this path in the region of the yarn servicing section is shown -in dotted lines in FIG. 20. It will be seen that the path of suction tube 155 at its extreme forward end intersects with the path of the reserve end in ready position. Consequently, as the suction tube approaches the forward end of its path, reserve end Y will be accessible to it. Necessarily, of course, suction tube 155 must be equipped with means for engaging yarn Y and, preferably, with means for severing the engaged end from the length of that yarn extending to suction aperture 390 as well. The construction of the front end of tube 155 by which these objects are achieved is shown in FIGS. 27 and 28.
  • a sleeve or socket 397 formed with a lateral bracket portion 398 ⁇ for supporting hinge pin 400.
  • a closure plate 402 Extending over the mouth of sleeve 397 is a closure plate 402 having right angular ears 404 and 404 bent upwardly from two opposite edges thereof and pivoted ⁇ on hinge pin 400.
  • closure plate 402 At the end thereof corresponding to bracket portion 398i, closure plate 402 is extended, as at 406, and projecting outwardly fnorn the inner corner of the extension is a short finger 408, by means of which closure plate 402 is opened and closed.
  • At the front end of inner ear 404 At the front end of inner ear 404 is forwardly and downwardly inclined edge 410, which edge is sharpened to function as a knife edge.
  • a blade 412 for cooperating with knife edge 410 is carried on the corresponding side of sleeve 397 and the lower edge thereof may also be sharpened.
  • Ears 404 and 404 of colsure plate 402 are so attached as to have friction fit with the adjacent surfaces of bracket portion 398 as well as with blade 412 so that the closure plate will remain in a given position with respect to sleeve 397 until forceably moved to a different position.
  • a closure plate control cam 414 Mounted on top panel 42 of housing 30 (rseeFIGS. 20 and 29) is a closure plate control cam 414 having a lower camming edge 416 for cooper-ating with finger 408 to move the plate 402 to closed position when suction tube 155 mov'es across the path of reserve end Y.
  • Cam 414 is supported at the end of a bracket 418 provided for this purpose on the top surface of top panel 42, with camming edge 416 spaced slightly above the panel surface to permit pin 408 to pass thereunder.
  • the camming edge of control cam 414 is inclined downwardly from front to rear (see FIG.
  • the machine may be constructed to include a waxing attachment.
  • a waxing attachment may take the form of a cake of wax 426 having a central aperture 427 of polygonal configuration and positioned upon a shaft 428 whose upper end is correspondingly shaped to mate with aperture 427, whereby the shaft and cake rotate together.
  • Shaft 428 is journaled for rotation in top panel 42 with its lower end projecting downwardly below the lower surface of the panel and carrying a pulley 430.
  • a second shaft 432 is journaled for rotation in top panel 42 at a point within the confines of offset portion 32 of housing 30 in approximate alignment with internal shaft 64 of the package indexing clutch, shaft 432 also projecting downwardly below the lower surface of panel 42 and carrying a pulley 434.
  • the two pulleys 430 and 434 are encircled by an endless driving belt 436, whereby the pulleys and their corresponding shafts rotate together.
  • Clutch shaft 64 which is constantly rotating, is extended upwardly, as at 436, and a pin 438 (see FIGS. 4 and 5) projects laterally from the upper end of extension 436 to engage an elongated rod 440 depending downwardly from pulley 434.
  • the length of pin 43S and rod 440 and the position of rod 440 relative to pulley shaft 432 are so chosen that the rod is engaged by the pin and will be pushed around by the finger as it rotates, revolving pulley 434 as well as pulley 430 and wax cake 426.
  • the waxing attachment is located forwardly of slub catcher 320, the portion of top panel 42 lying beneath cake 426 being raised slightly to define a platform 444.
  • a substantially semicircular portion of this platform may be depressed slightly from the normal level thereof, as at 446, to facilitate entry of the yarn Y being actively wound beneath the wax pad and to guide the yarn on its way to the slub catcher as well as to prevent the yarn from becoming entangled or abroaded by shaft 428.
  • a common guide 450 which extends in generally U-shaped configuration from its front end affixed to top panel 42 between suction aperture 39() and the waxing attachment to the rear end affixed to the top panel at approximately the left rear corner thereof. From the level of these ends, guide 450 is inclined upwardly to the apex of the loop which is spaced a sufficient distance about the panel surface that the yarn will normally tend to pass thereunder as it is being pulled forward by suction tube for reunion at the knotter with the end of yarn from the package being wound. Entry of the yarn into the slub catcher may be assisted by the presence of an 21 upwardly inclined edge 452 at the outer end of the elongated slub catcher blade 324.
  • closure plate 402 is in open position as suction tube 155 swings forwardly by Virtue of an opening cam (not shown) situated at the knotter, which cam is effective to open the closure plate to release the supply end of yarn when that end is delivered to the knotter to be united with the end from the package being wound.
  • suction tube 155 After engaging the supply end, suction tube 155 returns to the knotter and delivers up that end to the knotter and, once the two ends are joined together, the winding operation proceeds as before.
  • pin 192 In the event, however, that no yarn is present at the combined yarn sensing and tensioning device, as would beV the case either where the supply package in active unwinding position has become exhausted or the thread breaks between that package and the sensing device, pin 192 is wholly free to move and will cause clutch actuating member 156 to be shifted axially toward the indexing clutch during the rearward rocking motion thereof. Consequently, the path of toe portion 186 is shifted toward the clutch latch and the latch operating ngerwill lie within that path to be engaged by the toe portion 136.
  • an automatic winding machine including means for rotating a delivery package to wind yarn thereon, means for detecting an interruption in the yarn being delivered to said delivery package, means actuated in response to said detecting means for locating and reuniting the respective ends of the interrupted yarn, said locating and reuniting means including an end locating member pivoting in a predeterminedv arc during the operation of said means, an automatic package replenishing mechanism for presenting a fresh supply package of yarn to active position for winding on said delivery package upon exhaustion of one supply package, control means for operating said replenishing mechanism to bring said fresh package to active unwinding position, an actuating member for said control means mechanically coupled to said end locating member and movable therewith through a predetermined path, said replenishing mechanism control means being engaged and actuated by said actuating member upon movement thereof, means for sensing the presence of yarn at a point between the supply package in active position and said initial detecting means for preventing the engagement of said control means by said actuating member whereby operation of the package replenishing mechanism is avoided
  • a winding machine as in claim l including means for holding the free end of the yarn from the reserve package in a position adjacent the path of the parn from the package in active position to the package being wound, and guide means adapted as the replenishing mechanism is operated to move theI reserve package to active position to guide a stretch of yarn adjacent the vfree end from the reserve package to a position accessible to said yarn end locating and re-uniting means,'whereby the yarn from Said reserve package after presentation to active position will be engaged by said last-named means and joined to the end of yarn from the package being wound to permit the winding to proceed without human attention.
  • an automatic package indexing mechanism for presenting a fresh supply package of yarn for winding on said delivery package upon exhaustion of one supply package, which mechanism comprises a rotatably mounted supply package support member adapted to support one supply package in active position for delivering yarn therefrom to the package and at least one reserve package at a reserve position spaced a predetermined number of degrecs of rotation from said active position, a drive means for said package support means, clutch means adapted for coupling said drive means to said support member to rotate the same, a latch member effective to disengage said clutch during normal winding, a latch actuator connected to and moved by said end locating and reuniting means, means for maintaining said latch actuator in an inoperative position relative to said latch, a yarn contacting member sensing the presence of yarn
  • said actuator comprises an element movable cyclically along a predetermined path, normally spaced from said latch, said element including a cam surface thereon and said actuator engaging means comprises a pin movable by said yarn contacting member in the absence of yarn at said point into the path of said cam surface to engage with said surface upon movement of said actuator element and deflect said element from said path against said latch.
  • said yarn contacting means comprises a plunger mounted for generally vertical movement with its axis disposed adjacent to and transversely of the yarn path, said plunger having a shoulder thereon adapted to engage the yarn and prevent downward movement of the plunger so long as the yarn is present at the shoulder, and said actuator engaging pin is formed as an integral extension of one end of said plunger.
  • said means for removing slack from said yarn comprises a suction duct having an ⁇ opening disposed adjacent the yarn path downstream of said plunger, said duct being adapted to suck said yarn into said opening if slack exists therein.
  • said actuating member includes means operable where said last-named means has been projected by said sensing member to return said means and said sensing member to original position and thereby re-set said means and member for further operation.
  • a winding machine as in claim 3 including a slub catcher arranged in operative position across the yarn path and adapted for the passage of yarn there-beneath, said slub catcher being mounted for pivotal movement toward and away from said path about an axis generally parallel to said path, and means operated by the said yarn end locating and reuniting means to pivot said slub catcher away from said path to permit the reunited strand to be re-introduced beneath said slub catcher and after re-introduction of the yarn to return said slub catcher to operative position.
  • a combined yarn monitoring and tensioning arrangement for a strand of yarn moving along a predeter- 24 mined path comprising a plunger mounted for vertical movement with its axis disposed adjacent to and transversely of the path of the yarn being wound, said plunger having a shoulder thereon adapted to engage the yarn and prevent downward movement of the plunger so long as yarn is present at the shoulder, a stationary tension disc surrounding said plunger, a movable tension disc surrounding said plunger in superposed relation to said stationary disc, means on said plunger for raising said movable disc above said stationary disc when said plunger is moved to elevate said shoulder above the yarn path, said plunger being otherwise movable independently of said discs, and means operable after downward movement of the plunger has occurred, thereby indicating an interruption in the yarn, to move said plunger to elevate said shoulder above said path and simultaneously raise said movable disc, whereby the yarnmay be reintroduced between said discs and into engagement with said shoulder, said last-named means thereafter releasing said plunger for further monitoring of
  • an improved mechanism for detecting the presence of yarn and furnishing a positive control impulse in the absence thereof comprising a yarn sensing member arranged yfor contact with the yarn being wound, said member being biased for movement relative to the yarn and restrained against such movement by contact with the yarn, whereby said movement occurs in the absence of yarn, an actuating member movable normally along a predetermined path, said ⁇ actuating member having a cam surface formed at a locus Ithereon, means for positively moving said ⁇ actuating member in a cycle through said path, a guide element movable with said sensing member and normally retained in a position spaced away ⁇ from the path of said actuating member, said element being projected upon movement of said sensing member into the path of ⁇ the cam surface on said actuating member to engage said cam surface as the actuating member is moved along said path and cause said actuating member to be deflected temporarily a predetermined distance out of said path, and a cont-rol member adapted
  • a combined yarn monitoring and tensioning arrangement for Ia strand of yarn moving along a predetermined path comprising means for sensing ythe presence of yarn, said means having a surface normally in engagement with the yarn and being biased for movement in one direction upon disengagement of said yarn from said surface to a position indicating the absence of yarn from said surface, means for moving said sensing means in the opposite direction from said position to elevate said surface above said yarn path to permit restoration of such engagement; tension means associated with said sensing means, said tension means having a normal position in engagement with said yarn to apply tension thereto and an inoperative position per mitting 'the introduction of yarn thereto; and ra 10stmotion connection beween said sensing means and said tension means whereby movement of said sensing means in said opposite ydirection to elevate ⁇ said surface above said yarn path moves said .tension means from operative to inoperative position, .thereby allowing the yarn to 'be restored :into engagement with s-aid surface and introduced to said tension means simultaneously, said sensing means otherwise being freely mov

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  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Filamentary Materials, Packages, And Safety Devices Therefor (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Tension Adjustment In Filamentary Materials (AREA)
US30346A 1960-05-19 1960-05-19 Automatic supply package indexing mechanism for winding machines Expired - Lifetime US3081045A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
US30346A US3081045A (en) 1960-05-19 1960-05-19 Automatic supply package indexing mechanism for winding machines
DE19611560403 DE1560403A1 (de) 1960-05-19 1961-05-17 Automatische Schalteinrichtung fuer automatische Spulmaschinen
GB18219/61A GB969776A (en) 1960-05-19 1961-05-18 Improvements in automatic supply package indexing mechanisms for winding machines
GB6141/64A GB969778A (en) 1960-05-19 1961-05-18 Improvements in or relating to yarn winding machines
GB6142/64A GB969779A (en) 1960-05-19 1961-05-18 A combined yarn monitoring and tensioning arrangement for yarn winding machines
CH593261A CH394000A (de) 1960-05-19 1961-05-18 Automatische Lieferspulen-Einstelleinrichtung an einer Spulmaschine
FR862331A FR1293733A (fr) 1960-05-19 1961-05-19 Mécanisme d'avance ou de permutation automatique des paquets d'alimentation en fil d'un bobinoir
BE604007A BE604007A (fr) 1960-05-19 1961-05-19 Mécanisme d'indexation automatique de bobine d'alimentation pour bobineuse
SE14161/63A SE304942B (enEXAMPLES) 1960-05-19 1963-12-18

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US30346A US3081045A (en) 1960-05-19 1960-05-19 Automatic supply package indexing mechanism for winding machines

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US3081045A true US3081045A (en) 1963-03-12

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US30346A Expired - Lifetime US3081045A (en) 1960-05-19 1960-05-19 Automatic supply package indexing mechanism for winding machines

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Country Link
US (1) US3081045A (enEXAMPLES)
BE (1) BE604007A (enEXAMPLES)
CH (1) CH394000A (enEXAMPLES)
DE (1) DE1560403A1 (enEXAMPLES)
FR (1) FR1293733A (enEXAMPLES)
GB (3) GB969779A (enEXAMPLES)
SE (1) SE304942B (enEXAMPLES)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3262648A (en) * 1964-04-13 1966-07-26 Barber Colman Co High speed winder
US3390845A (en) * 1966-10-11 1968-07-02 Leesona Corp Yarn tension device
US3850377A (en) * 1973-07-24 1974-11-26 Leesona Corp Apparatus for readying wound bobbins
US3897911A (en) * 1974-06-18 1975-08-05 Pharr Yarns Inc Creel for automatic winding machine
US3902675A (en) * 1974-06-18 1975-09-02 Pharr Yarns Inc Yarn control means for automatic winding machine
US3930623A (en) * 1974-12-23 1976-01-06 Leesona Corporation Package supply device
US5188304A (en) * 1987-02-27 1993-02-23 Savio S.P.A. Device and process for the handling and the control of the thread on a coner machine during the operation of spool change and of thread joining
EP0995711A3 (de) * 1998-10-23 2000-11-15 W. SCHLAFHORST AG & CO. Verfahren zum Betreiben einer Arbeitsstelle einer Spulmaschine
CN112299147A (zh) * 2019-07-30 2021-02-02 日本Tmt机械株式会社 卷装更换装置
CN117088197A (zh) * 2023-08-18 2023-11-21 泰山玻璃纤维邹城有限公司 玻璃纤维络纱丝饼自动转纱设备及其方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111356853B (zh) * 2018-01-15 2022-03-29 株式会社F.C.C. 离心离合器

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1611890A (en) * 1917-01-04 1926-12-28 Edgar S Nethercut Winder
US2338914A (en) * 1939-04-18 1944-01-11 Esser Wilhelm Cross winding frame
US2733870A (en) * 1951-01-09 1956-02-07 Furst
FR1221997A (fr) * 1958-03-10 1960-06-07 Bobinoir automatique

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1611890A (en) * 1917-01-04 1926-12-28 Edgar S Nethercut Winder
US2338914A (en) * 1939-04-18 1944-01-11 Esser Wilhelm Cross winding frame
US2733870A (en) * 1951-01-09 1956-02-07 Furst
FR1221997A (fr) * 1958-03-10 1960-06-07 Bobinoir automatique

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3262648A (en) * 1964-04-13 1966-07-26 Barber Colman Co High speed winder
US3390845A (en) * 1966-10-11 1968-07-02 Leesona Corp Yarn tension device
US3850377A (en) * 1973-07-24 1974-11-26 Leesona Corp Apparatus for readying wound bobbins
US3897911A (en) * 1974-06-18 1975-08-05 Pharr Yarns Inc Creel for automatic winding machine
US3902675A (en) * 1974-06-18 1975-09-02 Pharr Yarns Inc Yarn control means for automatic winding machine
US3930623A (en) * 1974-12-23 1976-01-06 Leesona Corporation Package supply device
US5188304A (en) * 1987-02-27 1993-02-23 Savio S.P.A. Device and process for the handling and the control of the thread on a coner machine during the operation of spool change and of thread joining
EP0995711A3 (de) * 1998-10-23 2000-11-15 W. SCHLAFHORST AG & CO. Verfahren zum Betreiben einer Arbeitsstelle einer Spulmaschine
CN112299147A (zh) * 2019-07-30 2021-02-02 日本Tmt机械株式会社 卷装更换装置
CN112299147B (zh) * 2019-07-30 2023-08-18 日本Tmt机械株式会社 卷装更换装置
CN117088197A (zh) * 2023-08-18 2023-11-21 泰山玻璃纤维邹城有限公司 玻璃纤维络纱丝饼自动转纱设备及其方法

Also Published As

Publication number Publication date
CH394000A (de) 1965-06-15
SE304942B (enEXAMPLES) 1968-10-07
DE1560403A1 (de) 1969-07-03
GB969778A (en) 1964-09-16
BE604007A (fr) 1961-09-18
FR1293733A (fr) 1962-05-18
GB969779A (en) 1964-09-16
GB969776A (en) 1964-09-16

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