US3681906A - Method and apparatus for doffing full bobbins and donning tubes on ring spinning and ring twisting machines - Google Patents

Method and apparatus for doffing full bobbins and donning tubes on ring spinning and ring twisting machines Download PDF

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Publication number
US3681906A
US3681906A US135335A US3681906DA US3681906A US 3681906 A US3681906 A US 3681906A US 135335 A US135335 A US 135335A US 3681906D A US3681906D A US 3681906DA US 3681906 A US3681906 A US 3681906A
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Prior art keywords
support rail
full bobbins
machine
empty tubes
full
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US135335A
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English (en)
Inventor
Ulrich Burgermeister
Carlo Gaggini
Arthur Wurmli
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Maschinenfabrik Rieter AG
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Maschinenfabrik Rieter AG
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H9/00—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine
    • D01H9/02—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine for removing completed take-up packages and replacing by bobbins, cores, or receptacles at take-up stations; Transferring material between adjacent full and empty take-up elements
    • D01H9/04—Doffing arrangements integral with spinning or twisting machines

Definitions

  • ABSTRACT A method of, and apparatus for, automatically dofling full bobbins and donning empty tubes at textile machines, especially ring spinning and ring twisting machines, wherein a support rail is moved from a idle position into a gripping position for full bobbins placed upon spindles. The full bobbins are gripped by means of the support rail while it is in such gripping position, and then the support rail is moved upwards so as to dofi' the full bobbins from the spindles. The support rail with the doffed full bobbins is moved substantially parallel to and away from the machine, each point of the support rail moving along a predetermined path.
  • the support rail with the doffed full bobbins is lowered towards a transporting mechanism extending along the textile machine. and the full bobbins are substantially vertically deposited onto the transporting mechanism.
  • the transporting mechanism is placed in motion along the machine, the support rail lifted, and the full bobbins deposited lengthwise onto the transporting mechanism in the direction of transport thereof.
  • Empty tubes pre-arranged along the machine are gripped by the support rail, the support rail with the gripped empty tubes then is moved upwards and in a direction substantially parallel and towards the machine, each point of the support rail moving along a predetermined path, the empty tubes are donned onto spindles; and following completion of the donning operation the support rail is moved back into its idle position.
  • the present invention relates to a new and improved method of, and apparatus for, automatically doffing full bobbins and donning tubes on ring spinning and ring twisting machines wherein a support rail equipped with gripping elements provided for a group of spindles for transporting the full bobbins and the tubes moves from an idle position to a gripping position for the full bobbins placed on the spindles, in which position the full bobbins are gripped and doffed from the spindles by an upward movement of said support rail and are pivoted about a vertical axis associated with each full bobbin and deposited onto a full bobbin dump, and wherein the tubes transported by said support rail are pivoted towards the machine about a vertical axis associated with each tube and donned onto the spindles by a downward
  • the tubes are placed by hand into tube-holding elements of the doffing device during the spinning cycle.
  • These tube-holding elements are arranged at a mutual distance on a support rail extending along the machine.
  • Each dofiing element furthermore is equipped on its side opposite the tube-holding elements with gripping elements for gripping holding the full tubes, the dofiing element being rotatable about a vertical axis through 180.
  • the full bobbins still held by the holding elements are deposited with their lower ends onto the machine frame before the support rail has reached its lowest position, and at the same time the tube holding elements are released, and as the support rail reaches its lowest position the full bobbins are gripped again and lifted as the support rail moves up to its idle position. Subsequently the dofling elements are again rotated through l80 back into the initial position, whereupon the full bobbins are released and deposited onto a full bobbin dump arranged above the spindles and made ready by tilting out.
  • each dofiing element be controlled for the outward and inward pivoting of the full bobbins and the tubes, but also the release or loosening of the full bobbins for a short period of time during donning of the tubes must be controlled.
  • the doffed full bobbins thus not only undergo complicated steps of the operational method, but also apparatus of expensive design is needed for this.
  • a further disadvantage of the known method and apparatus isthe considerable space requirement above the machine. As the full bobbin dump is arranged above the spindles the support rail must be upwardly extended or lifted through a correspondingly great distance. Also in this known method the deposited full bobbins cannot be automatically removed from the machine as the tilt-out motion of the full bobbin dump does not permit this.
  • a primary object of the present invention is to provide just such novel method and apparatus for fulfilling the existing need in the art and effectively overcoming the aforementioned drawbacks of the prior art.
  • Still a further and more specific object of the present invention is to provide a novel method of the type under consideration which eliminates the disadvantages associated with the heretofore discussed prior art method, and specifically, deals with a new and improved method wherein all full bobbins doffed from the spindles are deposited and carried away from the machine prior to donning of the empty tubes.
  • Yet a further significant object of the present invention relates to novel type apparatus for dofiing full bobbins and donning tubes on ring spinning and ring twisting machines embodying mechanism enabling deposition of the dotted full bobbins prior to donning of the tubes, and wherein the apparatus is designed and constructed in such a fashion that it is extremely compact and requires a minimum amount of space.
  • Yet a further significant object of the present invention relates to a new and improved type of apparatus for doffing full bobbins and donning tubes on ring spinning and ring twisting machines which is relatively simple in construction, extremely reliable in operation, not readily subject to breakdown, and requires a minimum of servicing and maintenance.
  • the transporting mechanism is set into motion along the machine and the full bobbins are deposited lengthwise in the transporting direction onto the transporting mechanism as the support rail is lifted;
  • the support rail with the gripped tubes is moved further up and parallel towards the machine, each point of the support rail pivoting in the manner described above, and after the donning of the tubes is completed, the support rail is moved back into its idle position.
  • the apparatus construction of the invention embodies a suspended support rail which extends along the textile machine, the support rail being equipped with gripping elements for full bobbins and tubes associated with a group of spindles provided at the machine.
  • Means for depositing full bobbins and means for prearranging tubes to place such in a preparatory position are located along the longitudinally extending side of the machine.
  • Automatically operating means serve to ensure for the proper up and down movements of the vertically guided support rail and for pivoting the gripping elements of the support rail about an axis which extends vertically with respect to the lengthwise axis of the support rail and associated with each gripping element.
  • the invention contemplates rotatably suspending the support rail upon pivotable or pivoting arms, the length of which is invariable.
  • the pivoting arms are rigidly connected with up and down movable vertical rods, the lower ends of these rods extending freely downwards and the rods being rotatable about a given vertical axis.
  • the means or mechanism for moving the support rail up and down is operatively connected with the vertical rods.
  • the means for pivoting the gripping elements incorporates mechan-ism for rotating the vertical rods about such vertical axis and for causing the support rail to move substantially parallelly away from and towards the machine, as selectively desired.
  • the invention also contemplates that the full bobbin dump or deposit area is constituted by a transport mechanism which extends along the textile machine, this transport mechanism can be driven in both longitudinal directions of the machine, while the tube prearranging device serving to locate the empty tubes in a preparatory position for donning onto the spindles extends along the textile machine and is separated from the transporting mechanism of the full bobbin dump.
  • the support rail is preferably moved upwards from its idle position beneath the spindles, then is moved parallel in a direction towards the machine, with each point of the support rail moving along the path described above, and thereafler the support rail is lowered onto the full bobbins into its gripping position for such bobbins.
  • the support rail may also be moved from an idle position above the spindles into its gripping position for the full bobbins, in which case then the support rail can be simply lowered towards the spindles, or else moved from its idle position above the spindles parallel to and in the direction of the machine and then lowered towards the spindles. in order to retract the support rail back into its idle position upon completion of the doffing and donning operations it is only necessary, for instance, to carry out the reverse sequence of operational steps and movements.
  • the invention contemplates designing the length of the pivoting arms such that they are invariable, in other words constant, when the support rail carries out the first-described movement considered above each point thereof moves preferably along a helical curve, the projection into a horizontal plane, in other words the horizontal projection of which is a circle extending about a vertical axis associated with such point on the support rail.
  • the support rail carries out the second type of movement discussed above each point of the support rail preferably moves along a circular curve about a vertical axis associated with the point on the support rail.
  • each point of the support rail is moved along a path or curve, which when projected into a horizontal plane, forms an arc of a circle of, for instance, at least and at most 120, preferably
  • the support rail is preferably moved up after the full bobbins have been deposited upon the transporting device or mechanism.
  • the upper ends of the pre-arranged empty tubes are moved beneath the gripping elements of the support rail at right angles to the longitudinal axis of the textile machine and the support rail is then lowered.
  • the vertical rods are preferably suspended from the machine frame upon cables or cords and are movable up and down, for instance, through the action of such cables or cords.
  • these vertical rods may also be suspended, for instance, in any other suitable manner from the machine frame or from any other rigid frame and may be moved up and down by a rack and gear arrangement, for instance.
  • the vertical rods are preferably rotatable about their respective vertical axis.
  • the vertical rods may be also eccentrically rotatable about a vertical axis disposed externally of the axis of the vertical rod itself. In this latter situation an additional parallel movement of the support rail can be obtained apart from the parallel movement generated by the pivoting arms.
  • the transport mechanism is preferably designed as an endless transport band or belt located between lateral guide elements for the full bobbins, these lateral guide elements extending along the transport belt. It is preferable to provide side walls which extend upwardly along the transport belt, these side walls ensuring that the full bobbins released by the gripping elements are properly guided during such time as these full bobbins are deposited, so that such full bobbins are placed lengthwise in the transporting or conveying direction and are not deposited transversely across the transport belt.
  • the tube pre-arranging device can be constructed in the form of a rail member which extends along the machine.
  • This rail member is preferably provided with upwardly protruding pins arranged at a mutual spacing from one another corresponding to the spindle gauge.
  • the empty tubes are manually placed onto these pins during the spinning cycle and, therefore, these tubes can be properly pre-arranged in a preparatory position for the subsequent donning operation.
  • FIG. 1 is a schematic partially broken side view of a ring spinning machine equipped with a full bobbinchanging device
  • FIG. 2 is an enlarged cross-sectional view of the ring spinning machine depicted in FIG. 1, taken substantially along the line II-II thereof;
  • FIG. 3 is a fragmentary perspective view of a portion of the full bobbin-changing device employed in the ring spinning machine depicted in FIGS. 1 and 2;
  • FIGS. 4a, 4b, 4c and 4d are respective elevational views, taken substantially along the line IV-IV of FIG. 2, and illustrating different operational steps performed by a part of the full bobbin-changing device;
  • FIG. 5 is a schematic cross-sectional view showing details of a modified fonn of empty tube displacement device
  • FIG. 6 is a schematic cross-sectional view of a further modified version of empty tube displacement device
  • FIG. 7 is a schematic top plan view of an alternative embodiment of full bobbin-changing device which can be used in the arrangement of FIGS. 1 to 3 inclusive;
  • FIG. 8 is a schematic cross-sectional view of details of an alternative embodiment of the ring spinning machine depicted in FIGS. 1 to 3;
  • FIG. 9 is a schematic cross-sectional view showing details of still a further alternative embodiment of ring spinning machine.
  • FIGS. 1 and 2 there is illustrated an exemplary embodiment of inventive ring spinning machine 3 which is equipped with a headstock 1 and spindle rails 2, at each side of which there is arranged in a row a plurality of spindles 4.
  • a headstock 1 and spindle rails 2, at each side of which there is arranged in a row a plurality of spindles 4.
  • the ring spinning machine 3 To simplify the illustration in the drawings, only one side of the textile machine, here shown as the ring spinning machine 3, has been depicted.
  • Empty tubes 5 are placed upon these spindles 4, and a non-illustrated yarn is delivered from an associated drafting arrangement 6 (FIG. 2) located above the spindles 4, this yarn then being wound by means of the rings 7 arranged upon a ring rail 8 which moves up and down, into a bobbin 9.
  • FIG. 2 associated drafting arrangement 6
  • each such support rail 10 is in the form of an angle member, and specifically the profile of each such support rail 10 substantially corresponds to the shape of an inverted L.
  • Pin members 12 arranged at a mutual spacing from one another corresponding to the spindle gauge extend downwardly from the horizontal leg 11 of the associated support rail 10 and are fixedly connected to such rail.
  • a pressure hose 13 which extends lengthwise of the support rail 10, and when this pressure hose 11 is pressurized it bears against the tubes 5, or in the absence of such tubes against the pins 12.
  • the pressure hose l3 and the pins 12 cooperate with one another to provide gripping means or elements serving to grip the full bobbins 9 or the empty tubes 5, as the case may be, and as will be more fully discussed hereinafter.
  • the pressure hose 13 can be selectively connected through the agency of a control valve 14, as best seen by referring to FIG. 1, with a pressure source or with a vacuum source, of which only the respective pressure line and vacuum line have been indicated at 14a and 14b respectively.
  • the gripping elements constitute subject matter which has been described in detail in the commonly assigned US. application, Ser. No. 95,180, filed Dec.
  • the entire support rail 10 is supported at the ring spinning machine 3 by substantially vertically extending rods 15 which can be moved up and down within guides 16, the vertical rods 15 also being mounted so as to be rotatable about a given respective lengthwise axis.
  • the guides or guide elements 16 are supported by cross members 17 which extend downwardly from columns 18 of the ring spinning machine 3, as best seen by referring to FIG. 3.
  • the upper ends 19 of the guide elements 16 are connected by a rail member 20 which extends lengthwise and above the sides of the ring spinning machine.
  • the rods 15 are suspended at cables or cords 21 which are guided over freely rotatable rolls 22 attached to the associated lengthwise extending rail member 20, and these cables are connected with any suitable drive arrangement, such as a conventional and therefore nonillustrated motor and capstan drive arrangement, so that the rods 15 and thus the support rail can be reciprocated up and down.
  • the rails 20 are supported by cross-members 23 which, in turn, are carried by the columns 18.
  • each vertical rod 15 is rotated by means of a reversible pneumatically actuated pistoncylinder drive 26, 28 incorporating a piston member 26 reciprocable within a drive cylinder 28.
  • Piston member 26 is equipped with a piston rod 27 which is connected to the associated pivoting arm 24 while the cylinder 28 is rotatably connected to the support rail 10 by a linkage means 29.
  • a piston unit 26 may be provided for each suspended vertical rod 15 or for a few such vertical rods 15 there may be provided such piston unit 26.
  • the cylinder-piston arrangement discussed above serves to inwardly and outwardly rock the corresponding support rail towards and away from the ring spinning machine 3.
  • the invention further contemplates mechanism which provides a dump or deposit area for the full bobbins and in the embodiment under consideration such is constituted by an open-ended channel 30 of substantially U-shaped cross-sectional configuration which is arranged below and in front of the associated spindle rail 2, as best seen by referring to FIG. 2.
  • Each such channel 30 will be seen to be equipped with lateral upstanding walls 31 extending along the sides of the ring spinning machine 3.
  • a transporting or conveying belt 33 which can be driven in both lengthwise directions and which is guided about deflecting or diverting rolls 34 and 35 provided at the open ends of the U-shaped channel 30, so that a run of the transport belt 33 extends back beneath the bottom 32 of such channel 30.
  • a further channel 36 which likewise has both of its face ends open.
  • This further channel 36 is arranged so that it extends upwardly away from the first mentioned channel 30, and here also channel 36 is similarly provided with a conveying or transporting belt 39 guided over rolls 37, only one of which is visible in FIG. I, such that a run of the conveying or transporting belt 39 passes through and above the bottom or floor 38 of the further channel 36 while the other run of such transporting belt 39 passes beneath the bottom 38 of this channel 36.
  • the transporting belt 39 can be driven in a suitable manner in the direction of the arrow A.
  • the transporting belt 39 is provided with suitable angled entrainment members 40 which protrude upwardly away from the surface of the transporting belt 39 and are arranged at the belt in such a manner as to be preferably mutually offset with respect to one another.
  • the purpose of the transport belt 39 and the entrainment member 40 will be explained more fully hereinafter, but at this point it may be mentioned that such serve to convey away the full bobbins received from the full bobbin dump channel arrangement 30.
  • the invention contemplates providing a rail member 41 between each spindle rail 2 and the associated channel 30, rail member 41 extending along and lengthwise of the ring spinning machine 3 and being equipped with pins 42 which protrude upwardly for the purpose of receiving the empty tubes 5.
  • Rail member 41 is advantageously supported by means of at least two support members 43, only one of which is visible in the drawings, and these support members are movable in the direction of the double-headed arrow B of FIG. 2 so that the tube prearranging rail member 41 can be moved at a right angle with respect to the lengthwise axis of the machine and specifically away from and towards the ring spinning machine 3.
  • Suitable control means serve to actuate the piston member 26 by appropriately admitting a pressurized fluid medium into the cylinder 28 in such a way that the piston 26 moves in a'direction out of the cylinder 28 so that the support rail 10, in turn, is moved parallel to and towards the ring spinning frame 3.
  • This lateral movement of the support rail 10 continues until it reaches a plane extending vertically and parallelly in the longitudinal direction of the ring spinning machine 3 and determined by the rotational axis of the respective spindles 4, in other words, until the gripping elements at the support rail 10 are located above the spindles 4.
  • This position corresponds to the solid lined position of the support rail 10 as shown in FIG. 2 and to the phantom or broken lined position of the pivoting arms 24 indicated in FIG. 3.
  • each support rail 10 is invariable, in other words constant, the parallel movement of each support rail 10 is carried out in such a manner that each point of the support rail 10 is pivoted along a circular curve about a vertical axis associated with this point on the support rail 10, this vertical axis extending vertically with respect to the longitudinal axis of the support rail [0. Furthermore, each gripping pin 12 is likewise pivoted along a circular curve about a vertical axis associated with each such pin 12. It will be appreciated that the pivoting movement of all points on the associated support rail 10 follows circles having radii of identical length.
  • the support rail 10 is lowered by means of the motor and capstan drive arrangement actuated by control means so that the support rail 10 moves down to region of the spindles 4 and until the pins 12 are inserted into the upper ends 45 of the full bobbins 9.
  • the pressure hose 13 is pressurized so that it bears against the upper portion of the associated tube which has not been covered with yarn and against the conical upper part (not shown) of the full bobbin 9, to thus press each bobbin 9 against the associated pin 12 as described in detail in the aforementioned U.S. patent application, Ser. No. 95,180.
  • the support rail 10 is moved upwards so that the full bobbins 9 are dofi'ed from the spindle 4, and specifically until the lower rim of each of the full bobbins 9 is located above the associated spindle tip 50. Then, by retracting the piston 26 back into the associated cylinder 28 and activated by the conventional control means, the pivotal arms 24 are moved from the position indicated in broken lines in FIG. 3 into the solid lined position of FIG. 3, the vertical rods 15 being correspondingly rotated and the entire support rail 10 again being moved out of the previously discussed plane, with each point of the support rail 10 being pivoted in the manner similarly discussed above. As a result, the support rail 10 is moved parallel to and away from the ring spinning machine and thus from the spindles 4.
  • the full bobbins 9 are placed in a position above the deposit channel 30 into which they are then deposited.
  • the support rail 10 is lowered until a lower rim 51 of each of the full bobbins 9 is in close proximity to and above the surface of the transporting belt 33, as best seen by referring to FIG. 4a, in other words until there appears a small clearance C between the lower rim 5! of each full bobbin 9 and the upper run of the transporting belt 33.
  • the full bobbins 9 are released by the gripping elements l2, l3 and dropped vertically onto the surface of the conveying or transporting belt 33 inasmuch as the gripper pins 12 are still partially inserted into the corresponding upper portions 45 of the full bobbins 9 and therefore serve to vertically guide such full bobbins onto the surface of the transporting belt 33.
  • This condition has been depicted in FIG. 4b.
  • the small clearance C (FIG. 44) between the lower rim 51 of each full bobbin 9 and the upper run of the transporting belt 33 is preferably chosen to be smaller than thelength D (FIG.
  • this transport or conveying belt 33 is then initially moved somewhat in the direction of the arrow E so that the full bobbins 9 are still held by the gripper pins 12 but in an inclined position, with the upper bobbin tips 45 each being directed away from the just considered movement direction E.
  • the support rail 10 is moved upwards so that the pins 12 move out of the tips 45 of the full bobbins '9, the full bobbins 9 then dropping onto the transporting belt 33.
  • the full bobbins 9 which have been deposited onto the transporting belt 33 can also be guided, instead of using the substantially U-shaped channel and its side walls 31, for instance by one or more guide rods extending along the transporting belt 33, these guide rods being arranged laterally of and at a height above the transporting belt 33 suitable for guiding the full bobbins.
  • the transporting belt 33 starts moving in the direction of the arrow F, thus conveying the full bobbins 9 towards the transporting belt 39 running in the channel 36, the full bobbins 9 then being engaged by the transporting belt 39 of FIG. 1.
  • Depositing the full bobbins 9 with their bobbin tips 45 oriented in the conveying direction F and with these bobbin tips directed away from the surface of the transporting belt 33 renders possible an oriented deposition of the bobbins upon the transporting belt 33 and preferably allows for a trouble-free takeover of these bobbins by the transporting belt 39 at the end of the transporting or conveying belt 33.
  • the full bobbins 9 are deposited, for instance, in random fashion upon the surface of the transporting belt 33, then these bobbins cannot be positively conveyed without disturbances by the transporting belt 33, and furthermore, there is not ensured for a proper transfer of the bobbins from the transporting belt 33 to the transporting belt 39.
  • the full bobbins 9 are deposited, for instance, in a controlled arrangement, but with their lower ends 51, however, deposited onto the surface of the transport band 33 so as to be leading and facing the transport band 33 in the conveying direction F, then the full bobbins 9 cannot be transferred without disturbance from the end of the transport or transporting belt 33 to the transporting or conveying belt 39. In this case what really happens is that the full bobbins tend to slide back and topple over the carrier or entrainment members 40 of the transporting belt 39 and back into the channel 30, thus no longer can be carried away by the entrainment members 40.
  • Such a damming-up or build-up of full bobbins 9 can result in a blockage of the delivery end of the transporting belt 33 such that further passage of bobbins is interfered with. Therefore, deposition of the full bobbins 9 after lifting the support rail 10 in the manner described in accordance with FIGS. 4c and 4 d is most preferred.
  • each point of such support rail 10 is again pivoted in the manner discussed heretofore, that is, in a direction parallel and away from the machine, the support rail 10 subsequently being lowered into its idle or starting position.
  • FIG. 5 illustrates a modified embodiment of the invention wherein, instead of using the empty tube-prearranging rail 41 depicted in FIG. 2, there is employed a shaft member 53 which is arranged along the machine, which for purposes of preserving clarity in the showing of FIG. 5 has not been particularly shown therein.
  • This shaft member 53 is provided at its surface with pins 54 for receiving the empty tubes 55.
  • Shaft 53 is rotatable about its axis 56 in both directions of rotation as indicated by the arrows G and H respectively.
  • the empty tubes are, for instance, placed onto the tube receiving pins 54 and, after a support rail 57 equipped with the downwardly protruding pins 58 and with the pressure hose 59 serving as the gripping elements, similar to the construction of support rail 10 considered above in conjunction with FIGS. 1 to 3 inclusive, has been lifted to an appropriate height following completion of deposition of the full bobbins as heretofore described in conjunction with FIGS. 4a through 4d, the shaft 53 is rotated in the direction of arrow G.
  • each tube is thus moved substantially at right angles to the lengthwise axis of the textile machine and specifically into a position beneath the gripping elements 58, 59 of the associated support rail 57, as indicated in broken or phantom lines for the tube 55 of FIG. 5.
  • FIG. 6 A further modification of the equipment insofar as a possible constructional form of tube-prearranging mechanism is concerned has been disclosed in conjunction with FIG. 6.
  • the rail member 63 can be moved through the action of supporting rods or tubes 64, only one of which has been shown in FIG. 6, parallel along a plane inclined with respect to a horizontal plane X and in the direction of the doubleheaded arrow L,.
  • the tips 61' of the tubes 61 are moved at right angles to the lengthwise axis of the textile machine and specifically into a position beneath the gripping elements 65 and 66, namely the pins and pressure hose, of the associated support rail 68.
  • FIG. 7 there is depicted therein an embodiment of a drive arrangement for rotating for instance the rods 15 and therefore carrying out the previously discussed parallel placement of the support rail 10 of FIGS. 1 to 3.
  • the support rail has been referenced by numeral and is similarly provided with the gripping elements in the form of the pressure hose and gripper pins for the full bobbins and empty tubes.
  • these gripping elements have not been particularly shown in FIG. 7.
  • the end faces 71 and 72 of the support rail 70 are provided with the support members 73 and 74, at each of which there is mounted to be freely rotatable a respective roller 75 and 76, as shown.
  • Support rail 70 is pivotably or rotatably linked by means of the bolt members 77 and 77' with the pivot arms 78 and 78 respectively.
  • the pivot or pivoting arms 78 and 78' are arranged at rotatable rods 79 and 79' respectively, which, in turn, are suspended along a lengthwise extending side of the ring spinning machine, for instance in the manner discussed above in conjunction with FIGS. 1 to 3.
  • a respective actuation lever member 80 and 81 bears against the associated rollers 75 and 76 respectively, actuation levers 80 and 81 being mounted to be pivotable about the associated shafts 82 and 83 respectively.
  • each actuation lever member 80 and 81 will be seen to be equipped with an associated slide or roll surface 84 and 85 upon which can roll the associated roller members 75 and 76 respectively.
  • Actuation lever 80 can be positively driven in the direction of the arrow M and serves for the parallel displacement of the support rail 70 away from the ring spinning machine.
  • the points of the support rail 70 represented, for instance, by the centers 2 and Z of the corresponding bolts or pins 77 and 77', respectively, are moved along a circular path or curve K and K, respectively, about the respective vertically extending central axes Z and Z',, of the rods 79 and 79' respectively.
  • each point of the support rail 70 are moved along a circular path or are, which in the case of simultaneously up and down movement of the support rods 79 and 79' and parallel displacement of the support rail 70, and with the circular are projected into a horizontal plane, will be seen to constitute a circular arc of at least and at most 120, but preferably through an arc of about 90.
  • the actuation lever can be positively displaced in the direction of the arrow M, in other words from the phantom lined position into the full lined position of FIG. 7, the other actuation lever 81 can be displaced positively in the direction of the arrow N, in other words from the full lined position into the phantomed lined position of FIG.
  • the cross members 23 of the machine also serve to support the creel for the bobbins 91.
  • the guide members I6 depicted in the embodiment of FIGS. 1 to 3 and having open upper ends can here also be replaced in the arrangement of FIG. 8 by guide means 92 in the form of a cylinder receiving an associated support rod 94, the upper end of which is formed as a piston member 93 reciprocable within the guide cylinder 92.
  • the upper end of the guide element 92 is closed and is equipped with an opening for receiving the cable or cord 21.
  • guide member 92 is provided with a lateral connection 96 communicating with any suitable and therefore non-illustrated pressure source, such as a source of compressed air.
  • any suitable and therefore non-illustrated pressure source such as a source of compressed air.
  • the throughpassage opening is constructed in such a way that it sealingly engages and surrounds the throughpassing cord or cable 21.
  • the crosssection of the cord 21 is chosen preferably to be of circular or round configuration and is advantageously provided, for example, with a sheave of plastic material so that the desired sealing of the piston chamber 97 is guaranteed.
  • the mechanism serving to rotate the vertical support rods as contemplated by the present invention and thus for carrying out the desired parallel movement of the associated support rail can be designed in a different way from that heretofore described, and as specifically shown in the arrangement of FIG. 9.
  • the support rail 100 provided with the gripper pins 101 and with the pressure hose 102, serving as the gripping elements for the full bobbins and the empty tubes, both of which have not been here shown in this Figure but similar to what has been discussed above, is rotatably suspended from the pivoting arm members 103 by means of pins 104.
  • pins 104 are rotatably suspended from the pivoting arm members 103 by means of pins 104.
  • Pivoting arm 103 is rigidly attached to a vertical support rod 105 which is guided to be movable elevationally, in other words up and down within the guide cylinder 106 provided for the upper part of the vertical support rod 105 which is designed in the form of a piston member 107.
  • a groove 108 extends the length of the vertical support rod 105, and a cam member 1 10 arranged at the lower end 109 of the guide member or guide cylinder 106 protrudes into groove 108 in such a fashion that there is positively prevented any rotation of the vertical rod 105 which is surrounded and guided by the lower end 109 of the guide cylinder 106.
  • this guide cylinder 106 is closed by an upper cover 1 11, this cover 111 being provided with a sealed opening of, for instance, the type discussed above in conjunction with FIG. 8, and serving to receive a cord or cable 113 from which the vertical support rod 105 is suspended so that it can be moved elevationally up and down together with the cord or cable 113.
  • connection noule or conduit 119 connected to a suitable and therefore non-illustrated source of pressurized fluid medium, such as compressed air, merges with the piston chamber 115 of the guide cylinder 106, which chamber 115 is located between the upper face of the piston member 107 and the confronting top cover I l 1.
  • pressurized fluid medium such as compressed air
  • the cable or cord 113 is placed upon a suitable roller 116 which is supported so as to be freely rotatable and connected with the rail member 117 extending above the ring spinning machine 120.
  • the driving cable or cord 113 can be operatively connected with any suitable drive, such as for instance the previously considered motor and capstan drive arrangement serving to raise and lower the vertical rod 105 and thus also to carry out corresponding movements at the supporting or support rail 100.
  • the upper situated rail member 117 is supported by the cross member 118 which, in turn, is attached to a column 119 arranged at the ring spinning machine 120.
  • This cross member 118 also here serves to support the bobbin creel 121.
  • the guide cylinder 106 is rotatably suspended at a support 123 through the agency of rings 122 arranged along its outer circumference, support 123 being connected via a cross member I24 with the column 119.
  • the end wall or cover 1 l I carries a gear 127 which is arranged coaxially with respect to the guide member 106, gear 127 meshing with a gear rack [28 extending lengthwise of the machine and which gear rack can be moved in both longitudinal directions so that the meshing gear I27 and thus the guide cylinder 106 and the vertical rod 105 can be appropriately rotated.
  • the support rail for the gripping elements for the full bobbins and empty tubes is suspended along the lengthwise extending sides of the textile machine by means of columns, the actual operation of the machine is facilitated and cleaning of the underwinding crowns can be performed without interference. Furthermore, pre-arranging the tubes into a preparatory position onto the tube-prearranging device is similarly facilitated by virtue of the arrangement of the support rail. It is possible to move each support rail at any time up and down into any desired position so that all parts, especially those in front of the machine, are readily accessible when needed.
  • a further advantage of the inventive method is constituted by the fact that, for instance, the full bobbins can be deposited quite reliably onto a small transporting belt which is devoid of pins. It will be understood and quite readily appreciated that transporting full bobbins which have been deposited, for instance, upon pins arranged at a transporting belt or chain tends to cause disturbances, since the full bobbins cannot always be centrally placed onto the pins of the transporting belt by the action of a support rail.
  • a support rail equipped with gripping elements and operatively associated with a group of spindles serves to selectively transport the full bobbins and the empty tubes, the support rail moving from an idle position to a gripping position for the full bobbins placed on the spindles and at which gripping position the full bobbins are gripped and doffed from the spindles by an upward movement of the support rail and are pivoted about a vertical axis associated with each full bobbin and are deposited onto a full bobbin dump, and wherein the empty tubes transported by the support rail are pivoted towards the machine about a vertical axis associated with each empty tube and are donned onto the spindles by a downward movement of the support rail, the improvement comprising the steps of:
  • each point of the support rail moving along a path, which, as seen in a projection into a substantially horizontal plane, is a substantially circular curve, the center of which is a point of a vertical axis associated with said point of the support rail;
  • step (a) including the step of moving the support rail from an idle position located beneath the spindles in an upward direction and then parallel towards the machine, with each point of the support rail moving along the path as set forth in step (a), and then lowering the support rail towards the full bobbins into its full bobbin-gripping position.
  • step (g) wherein following step (g) where the empty tubes are donned onto the spindles a pressure is exerted upon the support rail to press the empty tubes onto the spindles.
  • each point of the support rail moves along the path during steps (a) and (f), the corresponding curve of which in the horizontal plane is an arc of a circle extending through an angle of at least but not greater than 120.
  • said gripping elements serving to selectively engage with full bobbins and empty tubes for the respective doffing and donning thereof;
  • means for rotatably suspending said support rail said rotatably suspending means incorporating pivoting arm means of invariable length engaging with said support rail, elevationally displaceable substantially vertically extending rod means with which said pivoting arm means are operatively connected.
  • said vertical rod means having freely extending lower ends, and means for mounting each said vertical rod means to be rotatable about an axis;
  • f. means providing a full bobbin dump for receiving full bobbins, said last-mentioned means comprising at least one transporting mechanism extending along the machine and capable of being driven in both longitudinal directions thereof;
  • a device for pre-arranging empty tubes said device extending along the machine in spaced relationship from said transporting mechanism.
  • each vertical rod means being arranged to be vertically movable within its associated guide element.
  • each vertical rod means is arranged to be vertically movable and rotatable.
  • each of said vertical rod means being provided with a piston displaceably arranged within the associated guide cylinder, means closing the upper end of each guide cylinder and equipped with an opening for the throughpassage of the associated cord from which the vertical rod means within such guide cylinder is suspended, and means providing a source of pressurized air communicating with each guide cylinder.
  • said means for rotating said vertical rod means comprises at least one cylinder and piston arrangement, means for rotatably securing said cylinder of said cylinder and piston arrangement to said support rail, said piston of said cylinder and piston arrangement including a piston rod rigidly connected with one of said pivoting arm means.
  • said means for rotating said vertical rod means comprise actuation lever means arranged at the end faces of said support rail, said actuation lever means being capable of being driven in opposite directions.
  • each vertical rod means is mounted to be rotatable a r m1 ii. ai aiiis as defined in claim 21, wherein each vertical rod means is mounted to be rotatable about an axis which is offset from its central axis.
  • each vertical rod means is mounted to be rotatable about its own axis through an angle of at least and no greater than 120.
  • each vertical rod means is mounted to be rotatable through an angle of 36.
  • said transporting mechanism comprises an endless transporting belt, lateral guide members for the full bobbins extending along and to both sides of said transporting belt.
  • said device for pre-arranging the empty tubes comprises a rail member extending along the machine beneath the spindles, said rail member being provided with upwardly protruding pins for receiving the empty tubes, said pins being arranged at a mutual spacing from one another substantially corresponding to the spindle gauge.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US135335A 1970-04-20 1971-04-19 Method and apparatus for doffing full bobbins and donning tubes on ring spinning and ring twisting machines Expired - Lifetime US3681906A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH584070A CH515179A (de) 1970-04-20 1970-04-20 Verfahren und Vorrichtung zum Auswechseln von Kopsen gegen Hülsen bei Ringspinn- und Ringzwirnmaschinen

Publications (1)

Publication Number Publication Date
US3681906A true US3681906A (en) 1972-08-08

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US135335A Expired - Lifetime US3681906A (en) 1970-04-20 1971-04-19 Method and apparatus for doffing full bobbins and donning tubes on ring spinning and ring twisting machines

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Country Link
US (1) US3681906A (de)
CH (1) CH515179A (de)
DE (1) DE2119075C2 (de)
FR (1) FR2086195B1 (de)
GB (1) GB1321378A (de)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3791124A (en) * 1971-06-18 1974-02-12 Rieter Ag Maschf Method and apparatus for controlling the doffing of bobbins and the donning of tubes on spindles of ring spinning and ring twisting machines
US3793818A (en) * 1971-12-02 1974-02-26 Ishikawa Seisakusho Kk Doffing and donning apparatus usable for textile machines such as draw-twisters
US3823537A (en) * 1970-12-28 1974-07-16 Sumida Ku And Kisshoin Ochiaic Automatic doffing process and apparatus for textile machines
US3827227A (en) * 1973-04-30 1974-08-06 Maremont Corp Grasper bar pivoting and positioning
US3942733A (en) * 1972-03-23 1976-03-09 Fried. Krupp Gesellschaft Mit Beschrankter Haftung Device for removing full bobbins on open-end spinning machines
US4118920A (en) * 1977-03-16 1978-10-10 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho System for transporting cheeses produced by spinning machinery
US4165585A (en) * 1977-06-03 1979-08-28 Teijin Limited Automatic doffing and donning apparatus
US4324094A (en) * 1979-07-19 1982-04-13 Officine Savio S.P.A. Semiautomatic device for doffing spools from a spindle bench
US20020153385A1 (en) * 2000-07-07 2002-10-24 Kish Thomas G. Apparatus for exchanging bobbins
CN103668597A (zh) * 2013-11-21 2014-03-26 清华大学 子母车落纱机六连杆导轨对接自锁机构
CN103774301A (zh) * 2014-01-22 2014-05-07 日照裕鑫动力有限公司 环锭纺细纱机自动插空纱管装置及方法
CN103774302A (zh) * 2014-01-22 2014-05-07 日照裕鑫动力有限公司 环锭纺细纱机管纱自动拔取装置及方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1157981B (it) * 1982-12-22 1987-02-18 Gaudino Piero & C Sas Perfezionamenti nei filatoi e ritorcitoi con dispositivi di levata automatica simultanea di tutte le spole

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE877721C (de) * 1950-12-16 1953-05-26 Carl-Otto Christianson Vorrichtung zum Auswechseln von Spulen in Spinnmaschinen
US2628468A (en) * 1952-01-12 1953-02-17 Naumkeag Steam Cotton Company Doffing mechanism for spinning machines
DE1282586B (de) * 1965-01-05 1968-11-14 Marga Ambros Geb Altenhoefer Vorrichtung zum Hindurchsaugen eines fluessigen oder gasfoermigen Behandlungsmittels durch spannungslos gefuehrtes bahnfoermiges Gut
DE1535070B2 (de) * 1965-12-16 1973-10-18 Zinser Textilmaschinen Gmbh, 7333 Ebersbach Transportvorrichtung für Spulenwechselvorrichtungen an Spinn- und Zwirnmaschinen

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3823537A (en) * 1970-12-28 1974-07-16 Sumida Ku And Kisshoin Ochiaic Automatic doffing process and apparatus for textile machines
US3791124A (en) * 1971-06-18 1974-02-12 Rieter Ag Maschf Method and apparatus for controlling the doffing of bobbins and the donning of tubes on spindles of ring spinning and ring twisting machines
US3793818A (en) * 1971-12-02 1974-02-26 Ishikawa Seisakusho Kk Doffing and donning apparatus usable for textile machines such as draw-twisters
US3942733A (en) * 1972-03-23 1976-03-09 Fried. Krupp Gesellschaft Mit Beschrankter Haftung Device for removing full bobbins on open-end spinning machines
US3827227A (en) * 1973-04-30 1974-08-06 Maremont Corp Grasper bar pivoting and positioning
US4118920A (en) * 1977-03-16 1978-10-10 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho System for transporting cheeses produced by spinning machinery
US4165585A (en) * 1977-06-03 1979-08-28 Teijin Limited Automatic doffing and donning apparatus
US4324094A (en) * 1979-07-19 1982-04-13 Officine Savio S.P.A. Semiautomatic device for doffing spools from a spindle bench
US20020153385A1 (en) * 2000-07-07 2002-10-24 Kish Thomas G. Apparatus for exchanging bobbins
US6874654B2 (en) * 2000-07-07 2005-04-05 Intier Automotive Inc. Apparatus for exchanging bobbins
CN103668597A (zh) * 2013-11-21 2014-03-26 清华大学 子母车落纱机六连杆导轨对接自锁机构
CN103668597B (zh) * 2013-11-21 2016-03-30 清华大学 子母车落纱机六连杆导轨对接自锁机构
CN103774301A (zh) * 2014-01-22 2014-05-07 日照裕鑫动力有限公司 环锭纺细纱机自动插空纱管装置及方法
CN103774302A (zh) * 2014-01-22 2014-05-07 日照裕鑫动力有限公司 环锭纺细纱机管纱自动拔取装置及方法
CN103774302B (zh) * 2014-01-22 2016-06-29 日照裕鑫动力有限公司 环锭纺细纱机管纱自动拔取装置及方法
CN103774301B (zh) * 2014-01-22 2016-07-06 日照裕鑫动力有限公司 环锭纺细纱机自动插空纱管装置及方法

Also Published As

Publication number Publication date
FR2086195B1 (de) 1978-01-13
GB1321378A (en) 1973-06-27
DE2119075C2 (de) 1982-03-25
FR2086195A1 (de) 1971-12-31
DE2119075A1 (de) 1971-11-04
CH515179A (de) 1971-11-15

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