EP3517662B1 - Service robot of a ring spinning machine, ring spinning machine and a method for controlling groups of handling means - Google Patents

Service robot of a ring spinning machine, ring spinning machine and a method for controlling groups of handling means Download PDF

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Publication number
EP3517662B1
EP3517662B1 EP19152442.0A EP19152442A EP3517662B1 EP 3517662 B1 EP3517662 B1 EP 3517662B1 EP 19152442 A EP19152442 A EP 19152442A EP 3517662 B1 EP3517662 B1 EP 3517662B1
Authority
EP
European Patent Office
Prior art keywords
handling means
service robot
ring
motion
group
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.)
Active
Application number
EP19152442.0A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3517662A1 (en
Inventor
Milan Moravec
Tomas Brozek
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maschinenfabrik Rieter AG
Original Assignee
Maschinenfabrik Rieter AG
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
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Publication of EP3517662A1 publication Critical patent/EP3517662A1/en
Application granted granted Critical
Publication of EP3517662B1 publication Critical patent/EP3517662B1/en
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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/005—Service carriages travelling along the machines
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/14—Details
    • D01H1/40—Arrangements for connecting continuously-delivered material to bobbins or the like
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/04—Guides for slivers, rovings, or yarns; Smoothing dies
    • D01H13/045—Guide tube
    • 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
    • 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
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H7/00—Spinning or twisting arrangements
    • D01H7/02—Spinning or twisting arrangements for imparting permanent twist
    • D01H7/52—Ring-and-traveller arrangements
    • D01H7/64—Ring supports, e.g. ring rails

Definitions

  • the invention relates to a service robot of a ring spinning machine, arranged displaceably along a row of spinning stations with an option of stopping at a selected spinning station, whereby the service robot is provided with groups of handling means coupled to drives.
  • the invention also relates to a ring spinning machine with a service robot, which is arranged displaceably along a row of spinning stations with an option to stop at a selected spinning station requiring a service operation.
  • the invention relates to a method for controlling groups of handling means of a service robot of a ring spinning machine, in which the motion of the groups of handling means is controlled in the vertical direction.
  • Ring spinning machines comprise a row of spinning stations arranged next to each other, each of which comprises a roving drafting device, from which the processed fiber roving is carried to a twisting device, from which the produced yarn is withdrawn and wound in a winding device on a tube carried by a spindle, which results in cop formation, i.e., the formation of a tube with a package.
  • a yarn manufacturing process is interrupted, e.g., due to a yarn break, the yarn production at the respective spinning station must be resumed.
  • the spinning process is resumed at the spinning station, after interrupting the spinning process, the roving feeding rollers of the drafting device are stopped, for example, or the drafting device is running and fibers from the roving are sucked into the waste, etc.
  • the motion of a traveller on a ring is terminated, which is usually recorded by a sensor of the motion of the traveller.
  • EP 0 394 671 A2 discloses using a service robot to resume the working process after a break of the produced yarn at a spinning station of a ring spinning machine, whose handling means are arranged on separate clamping elements and their transfer to the working position is performed by an associated drive member, which causes a higher weight of the entire service robot and increases its cost.
  • DD3000111 describes an embodiment, wherein the vertical motion of handling means is performed by a toothed belt on a vertical guide arranged in a housing of a service robot, the vertical guide and the toothed belt being used to move only one service mechanism, which increases the complexity, weight and cost of the service robot.
  • EP 0 518 029 A1 discloses a method and an apparatus for sequentially applying suction and an auxiliary yarn to a yarn package of a textile spinning machine.
  • EP 0 421 151 A1 discloses how, in order to coordinate the movements of two movable parts on a spinning frame and a service robot, a system is provided in which one part carries two sensors which are used to detect the position of the other part within the respective measuring ranges of the sensors.
  • the aim of the invention is therefore to eliminate or at least reduce the disadvantages of the background art.
  • a service robot for the automatic service of a spinning station of a yarn manufacturing ring spinning machine according to the preamble of claim 1 wherein the service robot is arranged as a vertical frame provided with at least two vertical linear guides, whereby at least one of them is associated with at least two movable groups of handling means for performing service operations at the spinning station and wherein the vertical linear guides are provided with an endless belt, which is wrapped at one end of the guide around a drive pulley and at the other end of the guide is wrapped around a freely rotatable pulley, whereby attached to the belt is a carrier of one group of handling means and, in addition, at least one other group of handling means is movably and disconnectably coupled to the belt.
  • the principle of the method for controlling the service robot consists in that at least two groups of handling means can move simultaneously along a commonvertical guide, while the same or varying distance is maintained between them.
  • the advantage of this solution is an economical spatial arrangement of the service robot, which allows service operations on ring spinning machines in which the spinning stations are arranged with very small spaces between each other. Furthermore, it leads to saving drive means and shortens the time needed for performing service operations at a spinning station of a ring spinning machine. Another advantage is the reduction in manufacturing costs of the service robot. This arrangement allows to displace the handling means directly or by means of another group of handling means, dependently or independently of each other, according to current and considerably variable needs.
  • the handling means are displaced directly or indirectly by drive means, which are associated with a vertical linear guide of the service robot or which may be (not necessarily) associated with a group of handling means or the handling means are displaced by a movable member which is arranged on the frame of the ring spinning machine.
  • the same drive means displace the handling means from their basic or rest position to their working position, and, vice versa, from their working position to their basic or rest position, thereby creating sufficient working and handling space for the handling means which are currently in operation.
  • the resulting motion of the group of handling means may result from the action of one drive means or from the combination of the action of more than one drive means. Therefore, the vertical position of the group of handling means can be varied relative to the spinning station being serviced or it is possible to vary the relative position of the groups of handling means.
  • this at least one other group of handling means is coupled to the belt movably and disconnectably by a drive pulley, which is coupled to a rotary drive, whereby a pair of freely rotatable guide pulleys is assigned to the drive pulley, whereby the guide pulleys are arranged relative to the drive pulley to ensure the wrapping of the drive pulley by the belt.
  • At least one of the groups of handling means is provided with means for synchronous vertical reciprocating motion along with the motion of a ring bench of the ring spinning machine.
  • At least one of the groups of handling means comprises a backstop for laying the group of handling means on the ring bench.
  • the group of handling means with means for synchronous vertical reciprocating motion together with the motion of the ring bench has weight and mechanical resistance of its guidance on the vertical linear guide lower than is the vertical loadability of the ring bench without affecting the drive and/or the motion of the ring bench.
  • auxiliary group of handling means which is independent of the other groups of handling means.
  • At least one of the groups of handling means displaceably mounted on the vertical linear guides is provided with at least one position sensor.
  • the movable groups of handling means are for motion on the vertical linear guides coupled to drives formed by stepper motors and/or linear motors.
  • the drives of the movable groups of handling means for motion on the vertical linear guides are provided with means of controlling their speed and/or position and/or direction of motion and are coupled to the control device.
  • the handling means of the groups of the handling means are coupled to mechanical and/or pneumatic and/or electronic driving elements.
  • the aim of the invention is as well achieved by a ring spinning machine with a mentioned service robot, characterized in that the service robot arranged displaceably along a row of spinning stations can be stopped at a selected spinning station which requires a service operation.
  • the ring spinning machine comprises a ring bench, and is characterized in that
  • the ring spinning machine contains at least one parking position for the service robot, the robot is stoppable on the parking position of the robot and the parking position is situated outside the spinning stations at the beginning of the machine and/or at the end of the machine and/or at the drive unit of the machine situated between spinning stations.
  • the invention will be described with reference to an exemplary embodiment of a service robot 1 of a ring spinning machine producing yarn, whereby the machine comprises a row of identical spinning stations arranged next to each other, the service robot 1 being arranged displaceably along the row of spinning stations with an option of stopping at a selected spinning station requiring a service operation.
  • the spinning station is principally well-known and therefore the entire spinning station will only be described in a simplified manner. Those parts, elements and nodes of the spinning station that are of significance to the present invention will be described in greater detail.
  • Each spinning station of a ring spinning machine comprises an unillustrated roving drafting device, below which a twisting and winding device is arranged.
  • the roving is fed from an unillustrated supply package to the drafting device, behind which the yarn being formed passes through a guide eyelet, a balloon limiter and then through a traveller circulating around the circumference of a ring mounted in a holder on a ring bench 12, whereupon after the passage through the traveller, the produced yarn is wound on a tube which is placed on a rotating spindle 13, which results in cop formation.
  • the package of yarn is formed on the tube by a continuous reversible vertical motion of the ring bench 12 in the directions C and D on the guide 14, see Fig.
  • the spindle is usually driven in its lower part by means of a flat belt driven by a drive shaft.
  • a yarn break occurs during winding on the bobbin
  • this fact is recorded by a sensor at the spinning station and the information is passed to a control unit of the machine, which after the evaluation of the information from other spinning stations and the information from the service robot 1 makes a decision about transferring the service robot 1 to the spinning station to perform a service operation.
  • the service operation consists of several service steps following one another, performed parallel to one another, etc. First, the rotating spindle 13 with the bobbin stops, the bobbin is either removed from the machine and moved closer to the service robot 1 to find subsequently the broken yarn or it remains at the spinning station, whereupon the end of the broken yarn is detected on the package of the bobbin.
  • a required length of yarn is wound for a yarn reservoir, whereby if the bobbin has been removed from the machine, it is now returned to the machine and placed on the spindle.
  • the yarn end is threaded into the traveller, through the balloon limiter and then through the guide eyelet and is inserted between the end rollers of the drafting device so that this yarn end is brought into contact with the end of the roving clamped by the end rollers of the drafting device while, at the same time, the winding of the yarn on the bobbin is started.
  • the device according to the present invention is to ensure that these and other service steps unspecified herein are performed with the necessary synergy of the service mechanisms moving along the linear and/or spatial paths at the spinning stations being served in the space, which is extremely limited due to the small spacing between the spinning stations (e.g., 70 and 75 mm).
  • the device according to the invention allows collision-free interoperability of the service mechanisms, while achieving the shortest time before the spinning process is resumed.
  • the service robot 1 of a spinning station of a ring spinning machine producing yarn comprises a vertical frame provided with at least two vertical linear guides 2, 18, on which are mounted reversibly slidably groups 3, 4, 5 and 6 of handling means for carrying out service operations at the spinning station.
  • the vertical linear guides 2, 18 are provided with an endless toothed belt 9, 17, which is at one end of the vertical linear guide 2, 18, in the shown exemplary embodiment at the upper end, wrapped around a drive pulley 7, 15 coupled to a rotary drive means and at the other end of the guide 2, 18, in the shown embodiment at the lower end, is wrapped around a freely rotatable tensioning pulley 8, 16.
  • the toothed belt 9, 17 thus arranged constitutes a vertical belt drive of the handling means 3, 4, 5 and 6.
  • a first group 4 of handling means is mounted reversibly slidably in the vertical direction on the first vertical linear guide 2 and is provided with a drive pulley 10 coupled to a rotary drive, whereby a freely rotatable guide pulley 11 is arranged in the direction of one arm of the endless toothed belt 9 both above and below the drive pulley.
  • An adjacent branch of the endless toothed belt 9 wraps alternately the upper guide pulley 11, the drive pulley 10 and the lower guide pulley 11.
  • the first group 4 of handling means is reversibly displaceable in the vertical direction not only by the drive pulley 7 relative to the first vertical guide 2, but also by the drive pulley 10 relative to the toothed belt 9.
  • a second group 3 of handling means is mounted reversibly slidably in the vertical direction on the first vertical linear guide 2 and is provided with a carrier 33, which is permanently attached to the toothed belt 9.
  • the second group 3 of handling means is vertically reversibly movable solely together with the toothed belt 9 and its vertical position is dependent on the motion of the drive pulley 7.
  • a third group 6 of handling means is mounted in a loosely sliding manner, reversibly displaceably, i.e. in vertical direction, on the second vertical linear guide 18.
  • the third group 6 of handling means is provided with a backstop 66, which after moving away the stop 230 on the movable member of the drive 23, for example, on the piston rod of the pneumatic cylinder, abuts the top of the ring bench 12 and is further lifted and lowered on the second vertical linear guide 18 solely by the effects of the ring bench 12 and in full synchronism with the motion of the ring bench 12.
  • the third group 6 of handling means is provided with a drive pulley coupled to a rotary drive, whereby a freely rotatable guide pulley is arranged in the direction of one arm of the endless toothed belt 17 both above and below the drive pulley.
  • An adjacent branch of the endless toothed belt 17 wraps alternately the upper guide pulley, the drive pulley and the lower guide pulley, similarly to the group 4 of handling means in the drawing.
  • the third group 6 of handling means is reversibly displaceable in the vertical direction relative to the ring bench 12, as well as relative to the endless toothed belt 17, and it can be laid on the ring bench 12 by the backstop 66, thereby disconnect the drive and the group 6 is then moved by the effects of the ring bench 12 and synchronized with the motion of the ring bench 12.
  • this group 3, 4, 5, 6 of handling means has weight and mechanical resistance of its guidance on the vertical linear guide 2, 18, 20, 21 lower than is the vertical loadability of the ring bench 12 without affecting the drive and/or the motion of the ring bench 12.
  • the group 3, 4, 5, 6 of handling means moving in synchronism with the ring bench 12 is provided with its own drive coupled to a sensor of its approaching the ring bench 12 and to the control device for the control of the motion of this group 3, 4, 5, 6 of handling means wich is synchronous with the motion of the ring bench 12.
  • a fourth group 5 of handling means is mounted reversibly slidably in the vertical direction on the second vertical linear guide 18 and is provided with a carrier 55, which is permanently attached to the toothed belt 17.
  • the vertical motion of the fourth group 5 of handling means is dependent on the rotation of the drive pulley 15.
  • the vertical frame is in the illustrated exemplary embodiment further provided with outer vertical guides 20 and 21, which are associated either with unillustrated reversibly vertically displaceable groups of handling means coupled to linear drives 200, 210, or, as indicated in Fig. 3 , on the frame is rigidly mounted at least one auxiliary group 22 of handling means, which is independent of the other groups 3, 4, 5, 6 of handling means and of the vertical linear guides 2, 18, 20, 21, whereby it is equipped with means for carrying out at least one service operation at the spinning station.
  • At least one of the groups 3, 4, 5, 6 of handling means, displaceably mounted on the vertical linear guides 2, 18, 20, 21, is equipped with at least one sensor of its position on the vertical linear guide 2, 18, 20, 21, which is connected to the control device.
  • the drives of the movable groups 3, 4, 5, 6 of handling means for the motion on the vertical linear guides 2, 18, 20, 21 consist of stepper motors and/or linear motors, which are highly controllable means with a favourable ratio of performance to weight.
  • the means are provided with means for controlling their speed and/or position and/or direction of motion and are coupled to the control device.
  • the individual handling means of each group 3, 4, 5, 6 of handling means are coupled to mechanical and/or pneumatic and/or electronic drive elements, which enable to achieve desired peformance even with small dimensions and low weight.
  • the device according to the invention works in such a manner that the first group 3 of handling means is on the vertical linear guide 2 directly carried by the toothed belt 9, namely via the carrier 33, the toothed belt 9 being directly driven by the rotary drive through the rotary drive pulley 7.
  • the second group 4 of handling means moves reversibly on the vertical linear guide 2 in the vertical direction, being carried only by the motion of the toothed belt 9, while the drive pulley 10 of the rotary drive means is not rotating, or the second group 4 of the handling means is carried only by the rotation of the drive pulley 10 of the rotary drive means, while the toothed belt 9 is not moving, or the second group 4 of handling means is carried due to a combined effect of the motion of the toothed belt 9 and concurrent rotatable motion of the drive pulley 10 of the rotary drive means.
  • the rotation of the drive pulley 10 of the second group 4 of handling means is activated, which ensures the necessary relative motion (both the speed and the direction) of the second group 4 of handling means with respect to the belt 9, which manifests itself as the relative motion of the first and the second groups 3 and 4 of handling means, or relative motion also with respect to the frame.
  • the arrangement of Fig. 2 is such that the fourth group 5 of handling means moves reversibly in the vertical direction on the vertical linear guide 18 and is carried by the carrier 55 by the motion of the toothed belt 17 driven by the drive pulley 15.
  • the third group of handling means 6 comprising a backstop 66, which abuts the top of the ring bench 12 at the time of performing the service operation at the spinning station.
  • the backstop 66 and the third group of the handling means 6 are displaced by the action of the stop 19 on the movable member 20 of the drive 21 to the rest position, out of the reach of the moving ring bench 12.
  • the third group 6 of handling means is displaced by the action of the drive pulley coupled to the rotary drive on the vertical linear guide 18 and the endless toothed belt 17 from its rest position situated out of the reach of the motion of the ring bench 12, until the backstop 66 abuts the top of the ring bench 12. Subsequently, the drive is disconnected and the third group 6 is displaced solely by the ring bench 12. During the displacement of the groups of handling means 6 by the action of the ring bench 12, the drive pulley coupled to the rotary drive is rolling freely on the endless toothed belt 17.
  • the ring spinning machine comprises a ring bench 12, whereby the service robot 1 is arranged as a vertical frame, which is provided with at least two vertical linear guides 2, 18, 20, 21, whereby at least one of it is associated with at least two movable groups 3, 4, 5, 6 of handling means to perform service operations at the spinning station. At least one of the groups 3, 4, 5, 6 of handling means is provided with means for reversible vertical motion together which is synchronous with the motion of the ring bench 12 of the ring spinning machine. In addition, these means for synchronous reversible vertical motion of the group 3, 4, 5, 6 of handling means together with the ring bench 12 comprise a backstop 66 to be laid on the ring bench 12.
  • the weight of this group 3, 4, 5, 6 of handling means with the backstop 66 and the mechanical resistance of its guiding on the vertical linear guide 2, 18, 20, 21 is lower than is the vertical loadability of the ring bench 12, and therefore it is not necessary for the application of the invention on the machine to strengthen the drives and the construction of the ring bench 12.
  • the service robot 1 according to the present invention can be used on the ring spinning machines that have already been in operation.
  • the ring spinning machine is provided with at least one parking position for the service robot, wherein the parking position is arranged along the length of the machine outside the spinning stations, e.g. it is arranged at the beginning of the machine and/or at the end of the machine and/or near a drive unit of the machine located between the spinning stations.
  • the service robot is then able to stop at this parking position, by which means the service robot assumes its parking position in which it does not interfere with the operation of the spinning stations or the other parts of the machine, nor does it interfere with the activities of the machine operator or other parts of the machine.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP19152442.0A 2018-01-24 2019-01-18 Service robot of a ring spinning machine, ring spinning machine and a method for controlling groups of handling means Active EP3517662B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CZ2018-35A CZ201835A3 (cs) 2018-01-24 2018-01-24 Automatické obslužné zařízení prstencového spřádacího stroje, prstencový spřádací stroj a způsob řízení skupin manipulačních prostředků

Publications (2)

Publication Number Publication Date
EP3517662A1 EP3517662A1 (en) 2019-07-31
EP3517662B1 true EP3517662B1 (en) 2021-05-19

Family

ID=65041598

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Application Number Title Priority Date Filing Date
EP19152442.0A Active EP3517662B1 (en) 2018-01-24 2019-01-18 Service robot of a ring spinning machine, ring spinning machine and a method for controlling groups of handling means

Country Status (4)

Country Link
EP (1) EP3517662B1 (cs)
CN (1) CN110067055B (cs)
CZ (1) CZ201835A3 (cs)
ES (1) ES2882210T3 (cs)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ2019390A3 (cs) 2019-06-19 2020-12-30 Rieter Cz S.R.O. Obslužný robot prstencového spřádacího stroje, prstencový spřádací stroj a způsob činnosti obslužného robota
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
CN112125060A (zh) * 2020-09-28 2020-12-25 安徽日发纺织机械有限公司 一种带有单锭吸嘴的捻接小车及其捻接方法

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Publication number Priority date Publication date Assignee Title
DE3536850A1 (de) * 1985-10-16 1987-04-23 Zinser Textilmaschinen Gmbh Verfahrbare wartungseinrichtung fuer eine spinnmaschine
DE3734275A1 (de) * 1987-10-09 1989-04-20 Zinser Textilmaschinen Gmbh Verfahren und vorrichtung zum einwechseln von vollen vorgarnspulen
DE59010333D1 (de) * 1989-03-23 1996-06-27 Rieter Ag Maschf Verfahren zum Betrieb einer Ringspinnmaschine sowie Bedienroboter zur Durchführung des Verfahrens
EP0421151B1 (de) * 1989-10-03 1995-03-29 Maschinenfabrik Rieter Ag Andockgerät mit Koppelsensorsystem
DE4119382A1 (de) * 1991-06-12 1992-12-17 Zinser Textilmaschinen Gmbh Verfahren und vorrichtung zum suchen eines fadenendes oder aufwerfen eines hilfsfadens an einem kops bzw. an einen kops oder eine leere huelse
CH710527A1 (de) * 2014-12-16 2016-06-30 Rieter Ag Maschf Spinnmaschine.
DE102016214190B3 (de) * 2016-08-02 2017-07-20 Reinhard König Ringspinnmaschine und Verfahren zum Betrieb einer Ringspinnmaschine

Non-Patent Citations (1)

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Title
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Also Published As

Publication number Publication date
CN110067055B (zh) 2022-11-18
EP3517662A1 (en) 2019-07-31
CN110067055A (zh) 2019-07-30
CZ201835A3 (cs) 2019-07-31
ES2882210T3 (es) 2021-12-01

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