US3827226A - Ring rail tracking arrangement for ring spinning machines - Google Patents

Ring rail tracking arrangement for ring spinning machines Download PDF

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Publication number
US3827226A
US3827226A US00398577A US39857773A US3827226A US 3827226 A US3827226 A US 3827226A US 00398577 A US00398577 A US 00398577A US 39857773 A US39857773 A US 39857773A US 3827226 A US3827226 A US 3827226A
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US
United States
Prior art keywords
rail
carriage
ring
ring rail
platform
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
US00398577A
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English (en)
Inventor
E Lesser
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Leesona Corp
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Leesona Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Leesona Corp filed Critical Leesona Corp
Priority to US00398577A priority Critical patent/US3827226A/en
Priority to DE2434718A priority patent/DE2434718A1/de
Priority to BR6285/74A priority patent/BR7406285D0/pt
Priority to FR7427170A priority patent/FR2244024A1/fr
Priority to JP49090179A priority patent/JPS5058331A/ja
Application granted granted Critical
Publication of US3827226A publication Critical patent/US3827226A/en
Priority to IT27216/74A priority patent/IT1021315B/it
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.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H15/00—Piecing arrangements ; Automatic end-finding, e.g. by suction and reverse package rotation; Devices for temporarily storing yarn during piecing
    • D01H15/013—Carriages travelling along the machines

Definitions

  • ABSTRACT A tracking arrangement for synchronizing the vertical movement of a working platform; for example, forming part of an automatic servicing tender for ring spinning machines, with the vertically reciprocating ring rail of the spinning machine including drive means for independently moving said platform, means for sensing the changing position of said ring rail, and servo control means responsive to said rail position sensing means to control said independent drive means to drive said platform to follow the movement of said rail.
  • This invention relates to a multi-position spinning machines, i.e., spinning machines equipped with automatically functioning, tending or servicing equipment capable to detecting the occurrence at positions along the machine of conditions requiring servicing, such as the completion of a fully wound bobbin of yarn or the interruption in the spinning operation, and of carrying out the necessary operations to restore that position to normal functioning, and is concerned more particularly with an arrangement for effectively synchronizing the movement of the operational devices of the tending equipment with the moving ring rail.
  • a ring rail extends along each side of the machine with spaced openings thereon through which extend the spindles which support the bobbins on which the spun yarn is wound.
  • a circular tracklike ring surrounds each such opening and a small c-shaped traveller rides freely on this circular track with the advancing yarn passing through the traveller on the way to the bobbin on the spindle.
  • the ring rail is reciprocated within fixed limits in the vertical direction and, in so doing, traverses the advancing strand along the length of the take up bobbin in order to produce a shaped package of spun yarn thereon.
  • the automatic tending equipment disclosed in the above-identified patents included a platform-like sub-carriage adapted to undergo independent vertical movement relative to the main carriage of the tender and mechanical or pneumatic devices needed for performing the threading up operation were mounted on this platform-like sub-carriage.
  • a guiding track was provided along the forward edge of the ring rail itself and the sub-carriage was equipped with rollers directly engaging this guiding track.
  • the object of the present invention is to provide an arrangement for controlling the vertical movement of a sub-carriage or working platform of an automatic tending system of the type in question in close synchronism with the vertical reciprocation of the spinning machine ring rail without disturbing the motion of the ring rail.
  • Another object of the invention is the provision of an automatic tending system in which the sub-carriage or working platform carrying the ring threading devices is maintained in an inoperative retracted position free of contact with the ring rail during the normal patrolling of the tender carriage, is brought from such retracted position to operative position when the tender carriage has halted at a spinning position requiring attention, is moved up and down vertically in precise synchronism with the ring rail with only the barest mechanical contact with the ring rail during the threading up operation, and is then returned to retracted position fully disengaged from the ring rail.
  • FIG. 1 is a view taken in substantially side elevation of one embodiment of the sub-carriage tracking arrangement of the present invention showing only fragments of the spinning machine and the main carriage of the servicing tender;
  • FIG. 2 is an enlarged detailed view of the tracking arrangement of the present invention, shown in transit from its retracted position to its operative position;
  • FIG. 3 is a detail view similar to FIG. 2 showing the tracking arrangement approaching the ring rail preparatory to taking its synchronized position;
  • FIG. 4 is a view similar to FIGS. 2 and 3 with the arrangement of the invention in operative position;
  • FIG. 5 is a top plan view looking down on FIG. 4.
  • Spindle rail 24 supports a plurality of vertically extending spindles 26 at spaced points therealong, the lower end of the spindles adjacent the top of the spindle rail 24 being formed as cylindrical whorl 28 for driving engagement with an endless driving belt not shown.
  • a bobbin B seen in phantom in FIG. 1 is adapted to be lodged in place on the spindle 26.
  • Afflxed to the base of the machine frame 22 is a set of tracks which are indicated diagrammatically at 30, 32 and in the embodiment depicted here constitute the supporting tracks for the travelling tender for servicing the spinning machine.
  • FIG. 1 is shown only a fragment of the travelling tender, which is generally designated S, including a portion of the floor 34 of the main carriageC with the flanged wheels 36, 38 projecting downwardly therefrom in riding engagement with the tracks 30, 32, respectively.
  • the tender carriage is equipped with motive power means represented by a motor M for driving the same lengthwise along the tracks 30, 32 and means for observing when the tender carriage is oriented in functional relation to a spinning position on the frame at which a condition exists indicating the need for the services of the tender, such means being represented schematically by a tachometer T sensing when the driving motor M has stopped the carriage in proper registration with a given position.
  • motive power means represented by a motor M for driving the same lengthwise along the tracks 30, 32 and means for observing when the tender carriage is oriented in functional relation to a spinning position on the frame at which a condition exists indicating the need for the services of the tender, such means being represented schematically by a tachometer T sensing when the driving motor M has stopped the carriage in proper registration with a given position.
  • a tachometer T sensing when the driving motor M has stopped the carriage in proper registration with a given position.
  • Another such condition is a rupture or interruption in the flow of yarn at the position for any of a variety of reasons, requiring either that the end of the interrupted yarn be reunited with the trailing end from the partially wound package, or, alternatively, the removal of the partially wound bobbin, its replacement by an empty bobbin, and the re-initiation of the spinning operation with the new bobbin.
  • the instrumentalities for detecting the occurrence of a condition suitable for servicing by the tender and for bringing the tender to a halt in a location appropriate for servicing that position are merely represented here by the housing H on sub-carriage 1 without further description.
  • a set of guiding posts 40 which serve to guide the movement in a vertical direction of the working platform or sub-carriage l.
  • a ring rail 42 Spaced above the spindle rail 24 with apertures therein for penetration by each of the spindles 26 is a ring rail 42 which carries an annular ring 44 around each of the spindle apertures.
  • a generally c-shaped traveller 46 rides on the upper flange of the ring 44 in engagement with the strand of yarn (not seen) to hold that yarn clear of the periphery of the bobbin B.
  • the ring rail 42 is reciprocated vertically up and down through a limited path of travel by means of lifter rods 48 seen fragmentarily in FIG.
  • the platform or subcarriage I is maintained in a lower retracted position indicated in phantom in FIG. 1, during the normal lengthwise patrolling action of carriage C and until the carriage is properly aligned with a spinning position requiring servicing, as indicated by the tachometer T.
  • the platform or sub-carriage I is then moved to operative position and caused to follow the vertical reciprocating motion of ring rail 42.
  • a double-acting fluid cylinder such as an air cylinder 50 is arranged generally vertically on the carriage C with one end rigidly fastened to the carriage floor 34 and the free end of piston rod 51 pivoted to the platform I.
  • Air under pressure is supplied or exhausted, as the case may be, from the opposite sides of cylinder 50 through corresponding accumulators or surge tanks 56, 58 which improve the dynamic stability of the system through the process of transient flow stabilization.
  • the platform can be recessed as at 55 to receive the upper end of cylinder 50 if necessary for the platform to be retracted clear of the working limits of ring rail 42.
  • the flow of the pressurized fluid from a supply conduit 59 to and from the opposite ends of cylinder 50 is controlled by means of a servo valve 60 in conjunction with a 3-way main supply valve 62.
  • the main supply valve 62 delivers fluid from supply conduit 59 directly to line 54a, which is one of two lines communicating with tank 58 connected to the upper end of cylinder 50, and thus biases sub-carriage I to its lowermost retracted position.
  • tachometer T gives a signal which is transmitted to main valve 62 and connects through an actuating solenoid that valve to servo valve 60 through line 61 while disconnecting line 54a from supply conduit 59.
  • Servo valve 60 is of the 4-way type so as to alternately supply and exhaust pressurized fluid to and from two lines from the common input line 61 in accordance with the mechanical actuation of a valve core 64, as indicated schematically in FIG. 3.
  • the lands 66 of valve core 64 are tapered as at 68 in order that the response of the servo valve may approach proportionality.
  • the valve core projects to the right exteriorally of the body of valve 60 in the form of an operating button 70 and a compression spring 72 biases button 70 to the far right position (seen in FIG. 2).
  • servo valve 60 supplies fluid to line 52 and thence through tank 56 to the lower side of cylinder 56 driving the piston rod 51 in an upward direction and forcing sub-carriage I upwardly at a controlled rate.
  • Control of the rate of movement of carriage I upwardly may be achieved by an adjustable flow control valve 53 in line 54.
  • Servo valve 60 is mounted on a bracket 74 upstanding from the sub-carriage I and which also carries certain other working components of the present arrangement. Principal among these is a feeler swing arm 76 and a servo actuating lever 78 which are connected through a lost-motion connection.
  • the feeler swing arm 76 has the form of a roughly L-shaped plate which is pivoted at its lower end about a stub shaft 80 rigidly fastened on the supporting bracket 74 and having at its upper end a lateral extension 82 terminating at its extreme lower corner with a small feeler roller 84.
  • a stub shaft 80 rigidly fastened on the supporting bracket 74 and having at its upper end a lateral extension 82 terminating at its extreme lower corner with a small feeler roller 84.
  • Within the upper edge of swing arm 76 are two spaced-apart rigid pins 86 which provide a lost-motion connection between arm 76 and actuating lever 78.
  • the latter is pivoted intermediate to its ends on stub shaft 80 for independent pivotal movement with its upper end extending freely between the spaced apart pins 86 on the swing arm 76 and its lower end terminating in an offset flange 88 for engagement with the face of the operating button 70.
  • the feeler roller 84 and its swing arm 76 must be maintained in retracted position, that is in a position in which the arm is pivoted in a counter-clockwise direction to a sufficient extent as to be located clear of the path of ring rail 42 during initial upward movement of sub-carriage I.
  • This retracted position is indicated in dotted lines in FIG. 2.
  • the projection and retraction of the swing arm 76 is controlled by means of a small singleacting fluid cylinder, such as air cylinder 90, located above the servo'valve 60, the cylinder end being pivoted to bracket 74 at 91, and its piston rod 92 pivoted to the approximate midpoint of feeler swing arm 76 as at 93.
  • Cylinder 90 is normally biased to retract rod 92 and pressurized fluid is supplied to extend rod 92 through a line 94 controlled by a solenoid valve 96.
  • the latter valve is actuated in response to the arrival of the sub-carriage I in vertically aligned position with respect to the ring rail 42, such arrival being sensed by a flat V- shaped feeler finger lot) pivoted at its upper end to the reverse side of bracket 74 and projecting at its lower end into the path of the ring rail.
  • Feeler finger 100 operates a microswitch 102 (see FIG. 5) which controls the operation of solenoid valve 96.
  • feeler finger we is contacted by the ring rail (see FIG. 3) as the platform I moves upwardly, it closes microswitch 102, energizing solenoid valve 96 to pressurize the cylinder 98.
  • the piston rod 92 is extended in the rightward direction in H6. 2, pivoting swing arm 76 in a clockwise direction to position the feeler roller 84 in overhanging relation to the top surface of ring rail 42, as shown in FIG. 3.
  • feeler swing arm 76 is still in its fully projected position with the feeler roller 84 in over-hanging relation to the top surface of ring rail 42 and as sub-carriage I drops roller 84 will therefore shortly make contact with the top rail surface.
  • the core 64 of servo-valve 60 therefore moves through and slightly past neutral position so as to reverse the action of the cylinder #0, driving the platform I in the upward direction at a rate closely consistent with the upward movement of the ring rail. This tracking relationship continues in both directions as long as needed for the serving operation to be completed.
  • the size of the small pressurized cylinder 90 and the pressurization of the fluid supplied thereto are so selected as to exert upon swing arm 76 a force that is sufficiently great to approximately balance the force exerted on the servo valve operating button by compression spring 72. With these two forces in substantially balanced condition, only a very small amount of force need to be applied to the feeler roller 84 by the ring rail in order to bring about a corresponding response in the controlled position of servo valve 60 and thus in the direction and rate of movement of the drive cylinder 50.
  • a signal is generated by means not shown to override microswitch 102, de-energize solenoid valve 96 and exhaust cylinder 90, thus retracting feeler swing arm 76 and feeler roller 84 away from the ring rail, on the one hand, and change main control valve 62 to disconnect servo valve 60 and connect supply conduit 59, driving sub-carriage I positively downwardly away from the ring rail to its retracted inoperation position, on the other hand.
  • a servo actuating lever 78 separate from feeler swing arm 76 in the above embodiment is due to spacial limitations arising from the requirement that the feeler roller be movable to and from projected and retracted position without coincidentally displacing other components into the path of the moving ring rail. In other embodiments with less stringent space limitations, a single integral lever could readily be devised.
  • a tracking arrangement for the vertically reciprocating ring rail of a textile ring spinning machine comprising a vertically movable platform to be driven in synchronism with said ring rail, drive means for independently moving said platform, means for sensing the changing position of said ring rail, and
  • servo control means responsive to said rail position sensing means to control said independent drive means to drive said platform to follow the movement of said rail.
  • sensing means is adapted to contact a horizontal surface on said ring rail and including means supporting said sensing means on said platform for generally lateral movement between a retracted position clear of the path of said rail and a projected operative position contacting said rail surface, means normally effective to maintain said sensing means supporting means in said retracted position and operable to move the same to said projected position, and feeler means for detecting when said platform and rail in a predetermined adjacent vertical relationship to operate said last-named means.
  • an automatic tending system for multi-station textile ring spinning machines comprising a tender carriage adapted to patrol along at least one side of said machine, detect the existence at a given station of said machine of a condition requiring servicing, position itself in operative relation to such position and perform operative functions to service said position, in which said carriage includes a sub-carriage mounted for independent vertical reciprocating movement on said carriage and supporting instrumentalities for performing certain of said operative functions: in combination, an arrangement for synchronizing the reciprocation of said sub-carriage with that of the ring rail of the spinning machine comprising drive means for independently moving said sub-carriage, means for sensing the changing position of said ring rail, and servo control means responsive to said rail position sensing means to control said independent drive means to follow the movement of said rail.
  • sensing means is adapted to contact a horizontal surface on said ring rail and including means supporting said sensing means on said sub-carriage for generally lateral movement between the retracted position clear of the path of said rail and a projected operative position contacting said surface, means normally effective to maintain said sensing means supporting means in said retracted position and operable to move the same to said projected position, feeler means for detecting when said sub-carriage and rail in a predetermined adjacent vertical relationship to operate said last-named means.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US00398577A 1973-09-19 1973-09-19 Ring rail tracking arrangement for ring spinning machines Expired - Lifetime US3827226A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US00398577A US3827226A (en) 1973-09-19 1973-09-19 Ring rail tracking arrangement for ring spinning machines
DE2434718A DE2434718A1 (de) 1973-09-19 1974-07-18 Ringbank-nachfuehrvorrichtung fuer ringspinnmaschinen
BR6285/74A BR7406285D0 (pt) 1973-09-19 1974-07-31 Ndimento automatico para maquinas de fiacao anulares
FR7427170A FR2244024A1 (de) 1973-09-19 1974-08-05
JP49090179A JPS5058331A (de) 1973-09-19 1974-08-06
IT27216/74A IT1021315B (it) 1973-09-19 1974-09-12 Dispositivo atto a seguire la rotaia ad anello in filatoi ad anelli

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00398577A US3827226A (en) 1973-09-19 1973-09-19 Ring rail tracking arrangement for ring spinning machines

Publications (1)

Publication Number Publication Date
US3827226A true US3827226A (en) 1974-08-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
US00398577A Expired - Lifetime US3827226A (en) 1973-09-19 1973-09-19 Ring rail tracking arrangement for ring spinning machines

Country Status (6)

Country Link
US (1) US3827226A (de)
JP (1) JPS5058331A (de)
BR (1) BR7406285D0 (de)
DE (1) DE2434718A1 (de)
FR (1) FR2244024A1 (de)
IT (1) IT1021315B (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3905186A (en) * 1973-10-23 1975-09-16 Saco Lowell Corp Method and means for control of end-down servicing
US4060963A (en) * 1975-04-12 1977-12-06 Fritz Stahlecker Guide track arrangement and method of adjusting the same
US4487012A (en) * 1981-12-29 1984-12-11 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Method and apparatus for supplying fluid to a traveling-type working machine serving a spinning frame
US4498283A (en) * 1982-02-12 1985-02-12 Seisakusho Kabushiki Kaisha Toyoda Jidoshokki Apparatus for locating a traveling-type servicing device in a multistation textile machine
US4685283A (en) * 1983-05-24 1987-08-11 Rieter Machine Works, Ltd. Locating device for service tender
US4766718A (en) * 1985-10-16 1988-08-30 Zinser Textilmaschinen Gmbh Positioning mechanism for a traveling automatic maintenance unit for a textile ring spinning machine or the like
CN113293471A (zh) * 2020-02-21 2021-08-24 拉克施米机械制造有限公司 自动纱线捻接单元

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03137233A (ja) * 1989-10-23 1991-06-11 Toyota Autom Loom Works Ltd 紡機における自動機のリフティング同期制御装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3373551A (en) * 1965-05-08 1968-03-19 Gillono Matteo Automatic apparatus for binding broken yarns on spinning machines
US3664109A (en) * 1969-09-24 1972-05-23 Roberto Escursell Prat Method and means for yarn retrieval
US3673780A (en) * 1970-09-10 1972-07-04 Maremont Corp Spindle control means for automatic yarn piecing apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3373551A (en) * 1965-05-08 1968-03-19 Gillono Matteo Automatic apparatus for binding broken yarns on spinning machines
US3664109A (en) * 1969-09-24 1972-05-23 Roberto Escursell Prat Method and means for yarn retrieval
US3673780A (en) * 1970-09-10 1972-07-04 Maremont Corp Spindle control means for automatic yarn piecing apparatus

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3905186A (en) * 1973-10-23 1975-09-16 Saco Lowell Corp Method and means for control of end-down servicing
US4060963A (en) * 1975-04-12 1977-12-06 Fritz Stahlecker Guide track arrangement and method of adjusting the same
US4487012A (en) * 1981-12-29 1984-12-11 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Method and apparatus for supplying fluid to a traveling-type working machine serving a spinning frame
US4498283A (en) * 1982-02-12 1985-02-12 Seisakusho Kabushiki Kaisha Toyoda Jidoshokki Apparatus for locating a traveling-type servicing device in a multistation textile machine
US4685283A (en) * 1983-05-24 1987-08-11 Rieter Machine Works, Ltd. Locating device for service tender
US4766718A (en) * 1985-10-16 1988-08-30 Zinser Textilmaschinen Gmbh Positioning mechanism for a traveling automatic maintenance unit for a textile ring spinning machine or the like
CN113293471A (zh) * 2020-02-21 2021-08-24 拉克施米机械制造有限公司 自动纱线捻接单元

Also Published As

Publication number Publication date
DE2434718A1 (de) 1975-03-20
IT1021315B (it) 1978-01-30
JPS5058331A (de) 1975-05-21
BR7406285D0 (pt) 1975-07-29
FR2244024A1 (de) 1975-04-11

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AS Assignment

Owner name: JOHN BROWN INDUSTRIES LTD.; 100 WEST TENTH ST., WI

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:LEESONA CORPORATION; 333 STRAWBERRY FIELD RD., WARWICK, RI. A CORP. OF MA.;REEL/FRAME:003936/0206

Effective date: 19810501

AS Assignment

Owner name: LEESONA CORPORATION

Free format text: CHANGE OF NAME;ASSIGNOR:JOHN BROWN INDUSTRIES LTD.;REEL/FRAME:003936/0238

Effective date: 19810331