EP3754070B1 - Vorrichtung und verfahren zur handhabung von webgeschirrelementen - Google Patents

Vorrichtung und verfahren zur handhabung von webgeschirrelementen Download PDF

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Publication number
EP3754070B1
EP3754070B1 EP19180573.8A EP19180573A EP3754070B1 EP 3754070 B1 EP3754070 B1 EP 3754070B1 EP 19180573 A EP19180573 A EP 19180573A EP 3754070 B1 EP3754070 B1 EP 3754070B1
Authority
EP
European Patent Office
Prior art keywords
holding element
additional
carrier device
elements
further holding
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
EP19180573.8A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3754070A1 (de
EP3754070C0 (de
Inventor
Bernd Pfeffer
Karl-Heinz Gesing
Stefan Kailer
Michael Acker
Christian Gerth
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.)
Groz Beckert KG
Original Assignee
Groz Beckert KG
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
Priority to EP19180573.8A priority Critical patent/EP3754070B1/de
Application filed by Groz Beckert KG filed Critical Groz Beckert KG
Priority to ES19180573T priority patent/ES2951844T3/es
Priority to JP2021571782A priority patent/JP7511586B2/ja
Priority to PCT/EP2020/065431 priority patent/WO2020254115A1/de
Priority to US17/619,865 priority patent/US11668028B2/en
Priority to CN202080044483.9A priority patent/CN114008257B/zh
Publication of EP3754070A1 publication Critical patent/EP3754070A1/de
Application granted granted Critical
Publication of EP3754070B1 publication Critical patent/EP3754070B1/de
Publication of EP3754070C0 publication Critical patent/EP3754070C0/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03J—AUXILIARY WEAVING APPARATUS; WEAVERS' TOOLS; SHUTTLES
    • D03J1/00—Auxiliary apparatus combined with or associated with looms
    • D03J1/14—Apparatus for threading warp stop-motion droppers, healds, or reeds

Definitions

  • the present invention relates to a device for handling weaving harness elements, such as a drawing-in machine, and a method for handling weaving harness elements.
  • a drawing-in machine is understood to mean a machine for drawing threads or warp threads into weaving harness elements, which can be divided into various functional units and has corresponding devices and sub-devices. These are, for example, devices for preparing strands and lamellae into which the threads are to be drawn. In these devices for providing the weaving harness elements are suspended adjacent to one another on rail-like guides, as is generally also customary, for example, in their sale or in weaving. Furthermore, a device for holding a reed is required "on the input side".
  • a drawing-in machine has a drawing-in device as the central device, which guides threads, for example, through reed, heald, slat and through components of a crosshair.
  • the drawn-in lamellas and strands have to be transported away "on the dismantling side", i.e. after they have been drawn in, from close to the drawing-in device in order to prevent a backwater.
  • strands and lamellas are mainly transported quickly over short distances in order to achieve a high cycle rate when pulling in.
  • Lamellas and strands often have to be transported away in parallel in devices arranged next to one another on the "dismantling side".
  • the present invention deals with the transport of the weaving harness elements from a delivery device via the drawing-in device to the receiving device.
  • Advantageously deals the invention with a module for strand transport, but lamellae are not excluded.
  • the DE69008100T2 describes a drawing-in machine that guides strands on rails and transports and positions them by means of various rams or slides.
  • a rotatable rail is used to select the transport direction for repelling the weaving harness element onto a predetermined heald frame.
  • the CH685203A5 discloses a drawing-in machine in which strands, after being separated, are first transported on a rotatable disk and are then released by a gripper that can be moved linearly in two directions onto a single one of a plurality of rods. The movements of the disc and gripper must be coordinated with each other for the necessary transfer of the strands and, if necessary, wait for the movement of the other element to be completed.
  • the WO9205303A1 discloses a drawing-in machine in which numerous holding means for healds are mounted at regular intervals on a carrier. After it has been separated, a strand remains on the same holding means from being pulled in until it is pushed off. This procedure is intended to increase the reliability of the drawing-in machine and enable a modular design.
  • the device according to the invention for handling weaving harness elements has a first holding element and at least one further holding element for weaving harness elements.
  • the first holding element and the at least one further holding element are designed to be moved cyclically between a supply device and a receiving device.
  • the device according to the invention is characterized in that at least the first holding element is set up in such a way that it supports at least part of its movement from the delivery device to the receiving device can perform while the at least one other holding element is not moving.
  • a holding element that has moved from the delivery device to the receiving device advantageously moves again from the receiving device to the delivery device and the movement sequence usually starts again.
  • a holding element moves on a different trajectory from the receiving device to the delivery device than it moves from the delivery device to the receiving device.
  • the trajectory of a holding element advantageously lies in one plane.
  • the movement of the holding elements for a handling process is interrupted at the supply device and the receiving device.
  • Further handling devices can be arranged between the supply device and the receiving device, on which the holding elements interrupt their cyclical movement.
  • the holding elements transfer the weaving harness elements from the delivery device to the receiving device.
  • Further handling devices such as a feed device, can be arranged in the device in such a way that the holding elements can be moved in the sequence of their cyclically executed movements, generally from the supply device to the further handling devices and finally to the receiving device. From the pick-up device, the holding elements without held harness elements can be moved back to the delivery device in order to pick up harness elements again and move them to the further handling devices and finally to the pick-up device.
  • the speed of the device increases because at least two weaving harness elements are handled at the same time by means of the at least two holding elements on handling devices.
  • the increase in speed compared to WO9205303A1 results from the fact that each holding element only has to remain on a handling device or on a sub-equipment of the respective handling device until the handling process taking place there has been completed and can then - independently of other holding elements and ongoing handling processes - continue to the next handling device and to the next handling process be moved.
  • the handling process with the longest handling time therefore does not determine the dwell time of all other holding elements on handling devices or on sub-equipment of handling devices on which possibly faster running ones handling processes take place.
  • each holding element can be arranged flexibly at least on the next free partial device of a handling device or be moved there and thus flexibly handle weaving harness elements on handling devices, ie pick up or push off, for example.
  • different strands (such as those cut out at the front and back) can be flexibly mixed without additional measures being necessary for the mixing.
  • the different strands can simply be made available sorted by type on different sub-equipment such as, for example, guide rails of the delivery device for transfer to the receiving device.
  • the device according to the invention can in particular be a module such as a heald module of a drawing-in machine of modular design.
  • the module can preferably be separated both mechanically and electrically from the drawing-in machine without impairing the function of other modules.
  • the module can perform its functions when other modules are deactivated or even dismantled.
  • the provision device of the heddle module can have one or more sub-devices on which the holding element can take a heddle from a supply.
  • the holding member can move a harness member such as a heddle to various handling devices. This can be a pull-in device, a measuring device, a marking device, an ejection device, a receiving device or others.
  • a pull-in device can be used to pull a yarn into a thread eyelet of a heald.
  • strands can be classified according to their quality and, if necessary, marked accordingly (identification device) or sorted out (ejection device).
  • identity device e.g., identifying device
  • ejection device e.g., determining whether a yarn has been drawn.
  • strands into which a yarn has been drawn are ejected onto one of mostly several individual sub-devices of a receiving device.
  • These sub-devices of a receiving device can be support rails of heald frames or rail-like guides that are assigned to such support rails.
  • the receiving device can be part of a drawing-in machine.
  • the receiving device can be part of a crockery trolley.
  • a maximum parallelization of the handling processes can be achieved if the number of holding elements is at least as large as the number of handling devices. If necessary, intermediate stops of the holding elements are advantageous without a handling process taking place.
  • the holding element can be pin-shaped or rod-shaped.
  • the holding element can be set up to engage in an end eyelet of a weaving harness element, in particular a heald.
  • the holding element can have a short longitudinal extent, which is at least sufficient to be able to securely hold a weaving harness element, taking into account all tolerances.
  • the holding element can be made of a steel so as not to wear out quickly through contact with the harness elements.
  • a supply device can have one or more rail-like sub-devices in order to provide weaving harness elements for drawing them in.
  • the provision device can have one or more compartment devices for separating weaving harness elements.
  • the provision device can be a sub-device of a stranded wire module.
  • Each holding element can be arranged on a carrier device.
  • a carrier device can be used, among other things, to initiate the movement of the holding element, in that the carrier device is operatively connected to an actuator.
  • a repelling element can also be arranged on one, on several or on each carrier device. By arranging a repelling element on carrier devices or even on each carrier device, it is not necessary to assign a repelling element in the form of an (e.g. electric or pneumatic) actuator to every partial device of a handling device and in particular to the receiving device, which simplifies the device and thus increases cost-effectiveness due to less susceptibility to faults. This effect can be enhanced by the fact that the repelling elements can include actuators that are formed by simple mechanical springs.
  • the stationary device element preferably has a contact surface for a biasing element of the carrier device, the distance of which increases or decreases with respect to a common axis in order to deflect the biasing element in the radial direction when it moves past, and thus a mechanical Actuator, preferably a tension spring or a compression spring to bias.
  • a relaxation or unlocking and thus repelling the weaving harness elements can by another machine component such as a Unlocking device element, which acts on an unlocking element of the carrier device, are triggered.
  • a Unlocking device element which acts on an unlocking element of the carrier device.
  • the unlocking element is actuated, a form fit that has come about during prestressing is canceled and the repelling element is thus unlocked and extended.
  • the unlocking device element is advantageously simultaneously effective for carrier devices that are arranged on any sub-devices of a handling device such as the receiving device, which in turn keeps the number of components small and thus promotes economy and reliability.
  • this can be set up in such a way that the unlocking device element has an angular extent in the direction of rotation of the carrier device, so that an unlocking element of a carrier device can be detected at any possible angular position of the carrier device.
  • Such an unlocking device element can extend in the shape of an arc and in particular in the shape of a circular arc.
  • Such an unlocking device element can act in relation to a common axis at a radial distance which corresponds to the radial distance of the unlocking element from a center of rotation of the carrier device.
  • the unlocking device element preferably acts in a direction parallel to a common axis.
  • the unlocking device element preferably acts on the carrier device from the side opposite to the direction of a harness element held on the carrier device.
  • Each carrier device (and each holding element) can have an associated carrier device with a supplementary holding element arranged at an axial distance along a common axis which is perpendicular to a surface in which the movement of a holding element takes place. Said axial distance can be adjusted to the length of the harness element.
  • the holding elements can be distributed on two planes which are perpendicular to the axial direction along a common axis.
  • the holding element of the respective associated carrier device is used with the respective supplementary holding element for handling a weaving harness element in the vicinity of its two ends in its longitudinal direction under pretension in its longitudinal direction. In this way, disruptive movements of the weaving harness element between the holding elements are at least partially suppressed.
  • At least one holding element of two supplementary holding elements can be movably arranged on the respective carrier device in order to hold the weaving harness element prestressed between the two associated holding elements to be able to
  • the movable holding element is preferably arranged on the carrier device in such a way that the weaving harness element is prestressed when no external force is acting.
  • a relaxation device element can preferably be arranged on the device, which element can apply a displacement to the holding element or to a relaxation pressure element assigned to the holding element. The displacement preferably takes place parallel to a direction of a common axis.
  • a holding element that is movably arranged on the carrier device can be arranged on the carrier device such that it can be pivoted about a bearing axis of the retaining element.
  • the relaxation device element can have an angular extension, so that a holding element on each sub-device of the receiving device can be subjected to displacement.
  • An additional relaxation device element with the same effect can also be assigned to the provision device. The same applies to the direction of movement of the relaxation device element as to the unlocking device element.
  • the stress-relieving device element and the unlocking device element can be formed in one piece on the receiving device, which in turn reduces the number of parts and increases reliability.
  • the relaxation device element preferably acts before the unlocking device element.
  • the at least two holding elements can advantageously be arranged so as to be rotatable about a common axis.
  • the at least two holding elements can advantageously be arranged independently of one another in their angular position about the common axis. Different holding elements arranged in one plane cannot be at identical angular positions. A certain minimum distance in the angular position is required so that the carrier devices do not collide.
  • Support devices that act in a common plane such as the support device for the first holding element and the support device for the at least one further holding element, can preferably be arranged on enclosing shafts about a common axis.
  • the carrier devices can be driven by an electric motor. A separate electric motor can be assigned to each carrier device.
  • the method according to the invention for handling harness elements comprises the cyclical movement of a first holding element and at least one further holding element for harness elements between a supply device and a recording facility.
  • the method according to the invention is characterized in that at least the first holding element performs at least part of its cyclical movement between the supply device and the receiving device while the at least one further holding element does not move.
  • the device can be operated with a high number of cycles, because each holding element can transport a held weaving harness element immediately after completion of a handling process or pick up a new weaving harness element without having to wait for the completion of other handling processes.
  • all handling processes can be processed as closely as possible in terms of time.
  • a flexible feed with a high number of cycles is also possible because longer distances between individual handling devices caused by a special feed also do not necessarily slow down the other handling processes and movements of carrier devices.
  • FIG 1 shows a symbolic oblique view of essential components of the device 1 according to the invention.
  • the holding elements 2, 3, 13 and 14 are set up to transport harness elements (not shown) from a delivery device 4 on the left in the figure to a receiving device 5 on the right in the figure.
  • the provision device 4 shown comprises two at the top Sub-equipment 41 and 42 shown as rails.
  • the provision device 4 shown comprises two sub-devices or rails 43 and 44 at the bottom, on which weaving harness elements are placed and can be received by the holding elements 2, 3, 13 and 14.
  • the receiving device 5 shown comprises two sub-devices or rails 51 and 52 at the top and two rails 53 and 54 at the bottom, onto which the drawn-in harness elements can be released.
  • Both the supply device 4 and the receiving device 5 can have a different number of rails or generally partial devices, the number of which can range from 1 to, for example, up to 24, independently of one another in all conceivable exemplary embodiments.
  • the first holding element 2 is arranged on a carrier device 6 .
  • the second holding element 3 is arranged on the carrier device 7 .
  • the supplementary first holding element 13 is arranged on the carrier device 15 .
  • the supplementary further holding element 14 is arranged on the carrier device 16 .
  • the carrier devices 6 , 7 , 15 and 16 are arranged such that they can rotate about the common axis 18 .
  • the first holding element 2 and the supplementary first holding element 13 can transport a heald from the supply device 4 to the receiving device 5 in a prestressed manner at their end eyelets.
  • additional holding element 3 and the supplementary first holding element 14 can transport a heald from the supply device 4 to the receiving device 5, prestressed at their end eyelets.
  • the holding elements 13 and 14 are movably attached to the carrier devices 15 and 16 , which is indicated by the bearing axles 21 .
  • the holding elements 13 and 14 with the relaxation device elements 20 can be moved upwards in the figure.
  • the relaxation device element 20 shown on the right in the figure is designed in one piece with an unlocking device element 12 .
  • a stranded wire in the tension-free state can be released from the repelling element 9 of the carrier devices 7 and 16 onto a rail 52 and 54 of the receiving device.
  • the push-off elements 9 are correspondingly shown in the extended state.
  • the push-off elements 8 are shown in the tensioned state.
  • the carrier devices 7 and 16 first rotate from the rails 52 and 54 further to the rails 51 and 53. Then the carrier devices 7 and 16 pass the fixed device elements 10, which engage with the biasing elements 19 and the repelling elements so from the extended state (shown as repelling elements 9) in the tensioned state (Shown as repelling elements 8) transfer, as shown in the carrier devices 6 and 15.
  • the unlocking device elements 12 cooperate with unlocking elements 11 in order to unlock the repelling elements 8 and thus transfer them from the tensioned state (shown as repelling elements 8) to the extended state (shown as repelling elements 9).
  • the unlocking device elements 12 execute a movement parallel to the common axis 18 .
  • figure 2 shows a symbolic representation of a carrier device 6 or 7 of a first or further holding element 2 or 3 in side view.
  • the pin-shaped configuration of the holding element 2 or 3 can be seen better in this enlarged view.
  • the repelling element 8 is shown in the tensioned state.
  • figure 3 shows a symbolic representation of a carrier device 15 or 16 of an additional first holding element 13 or additional additional holding element 14 in side view.
  • the carrier device 15 or 16 shown includes a bearing axis 21 for the movable arrangement of the holding elements 13 or 14.
  • an optional relaxation pressure element 17 is shown.
  • the relaxation device member 20 does not directly press the movable support member.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Auxiliary Weaving Apparatuses, Weavers' Tools, And Shuttles (AREA)
  • Basic Packing Technique (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Installation Of Indoor Wiring (AREA)
EP19180573.8A 2019-06-17 2019-06-17 Vorrichtung und verfahren zur handhabung von webgeschirrelementen Active EP3754070B1 (de)

Priority Applications (6)

Application Number Priority Date Filing Date Title
ES19180573T ES2951844T3 (es) 2019-06-17 2019-06-17 Dispositivo y procedimiento para manejar elementos de marco de lizos
EP19180573.8A EP3754070B1 (de) 2019-06-17 2019-06-17 Vorrichtung und verfahren zur handhabung von webgeschirrelementen
PCT/EP2020/065431 WO2020254115A1 (de) 2019-06-17 2020-06-04 Vorrichtung und verfahren zur handhabung von webgeschirrelementen
US17/619,865 US11668028B2 (en) 2019-06-17 2020-06-04 Device and method for handling harness elements
JP2021571782A JP7511586B2 (ja) 2019-06-17 2020-06-04 織アクセサリのハンドリング装置及び方法
CN202080044483.9A CN114008257B (zh) 2019-06-17 2020-06-04 用于操纵综框元件的设备和方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19180573.8A EP3754070B1 (de) 2019-06-17 2019-06-17 Vorrichtung und verfahren zur handhabung von webgeschirrelementen

Publications (3)

Publication Number Publication Date
EP3754070A1 EP3754070A1 (de) 2020-12-23
EP3754070B1 true EP3754070B1 (de) 2023-06-07
EP3754070C0 EP3754070C0 (de) 2023-06-07

Family

ID=66912717

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19180573.8A Active EP3754070B1 (de) 2019-06-17 2019-06-17 Vorrichtung und verfahren zur handhabung von webgeschirrelementen

Country Status (6)

Country Link
US (1) US11668028B2 (es)
EP (1) EP3754070B1 (es)
JP (1) JP7511586B2 (es)
CN (1) CN114008257B (es)
ES (1) ES2951844T3 (es)
WO (1) WO2020254115A1 (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2976198T3 (es) 2019-06-19 2024-07-26 Groz Beckert Kg Dispositivo y procedimiento para manipular elementos de tejeduría

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB798232A (en) 1954-08-18 1958-07-16 Zellweger Uster Ag Method and apparatus for the automatic supply of warp thread heddling machines with single healds
EP0421943A1 (fr) 1989-09-29 1991-04-10 EL & M S.r.l. Procédé de rentrage automatique des fils de chaîne et machine pour la mise en oeuvre dudit procédé
WO1992005303A1 (de) 1990-09-17 1992-04-02 Zellweger Uster Ag Vorrichtung zur handhabung von litzen oder lamellen in einer kettfadeneinziehmaschine
EP0539062A1 (en) 1991-10-24 1993-04-28 Teijin Seiki Company Limited Dropper separating mechanism
CH685203A5 (de) 1989-08-03 1995-04-28 Gifu Prefecture Fadeneinzugsgerät.
US5448812A (en) 1993-09-13 1995-09-12 Stabli AG Heald transfer station having locks positioned to control movement of healds
EP1105558B1 (de) 1998-08-17 2002-10-02 Stäubli AG Pfäffikon Vorrichtung und verfahren zum aufnehmen und halten bzw. zum verteilen von geschirrelementen
FR2930950A1 (fr) 2008-04-03 2009-11-13 Toyota Jidoshokki Kk Machine de rentrage
US8562272B2 (en) 2010-02-16 2013-10-22 Lam Research Corporation Substrate load and unload mechanisms for high throughput

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Publication number Priority date Publication date Assignee Title
US1119824A (en) * 1914-01-07 1914-12-08 Melville P Hayward Tenter-clip.
US4760628A (en) * 1986-09-15 1988-08-02 Steel Heddle Manufacturing Corp. Drawing-in of heddles remote from a loom harness frame
JPH0737697B2 (ja) * 1989-11-24 1995-04-26 シーケーディ株式会社 ドローイング装置用の糸引き通しヘッド
JPH05311546A (ja) * 1992-02-10 1993-11-22 Nippon Filcon Co Ltd 自動筬通し装置と自動筬通し方法
CH687881A5 (de) * 1993-09-13 1997-03-14 Staeubli Ag Zweigwerk Sargans Litzensepariervorrichtung fuer Kettfadeneinziehmaschinen.
US6418973B1 (en) * 1996-10-24 2002-07-16 Boeing North American, Inc. Integrally woven ceramic composites
ES2186193T3 (es) 1997-09-08 2003-05-01 Staeubli Ag Pfaeffikon Dispositivo para la transferencia de elementos de equipo de una maquina de tejer.
TW403797B (en) * 1997-09-23 2000-09-01 Staeubli Ag Pfaeffikon Method and apparatus for singularizing healds
TR200100750T2 (tr) 1998-09-14 2001-07-23 Staubli Ag Pfaffikon Gücü ya da asma teli besleme düzeneği
US6257160B1 (en) * 2000-03-07 2001-07-10 Fred Aivars Keire Sail of woven material and method of manufacture
EP1470277B1 (de) * 2002-01-30 2007-10-03 Stäubli AG Pfäffikon Vorrichtung zur separierung von fäden aus einer fadenschicht
CN103924365B (zh) * 2014-04-21 2015-04-22 深圳市海弘装备技术有限公司 一种用于综丝转移的装置和方法
CN107740214B (zh) * 2017-11-21 2023-06-06 广东溢达纺织有限公司 自动分综丝机构

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB798232A (en) 1954-08-18 1958-07-16 Zellweger Uster Ag Method and apparatus for the automatic supply of warp thread heddling machines with single healds
CH685203A5 (de) 1989-08-03 1995-04-28 Gifu Prefecture Fadeneinzugsgerät.
EP0421943A1 (fr) 1989-09-29 1991-04-10 EL & M S.r.l. Procédé de rentrage automatique des fils de chaîne et machine pour la mise en oeuvre dudit procédé
WO1992005303A1 (de) 1990-09-17 1992-04-02 Zellweger Uster Ag Vorrichtung zur handhabung von litzen oder lamellen in einer kettfadeneinziehmaschine
EP0539062A1 (en) 1991-10-24 1993-04-28 Teijin Seiki Company Limited Dropper separating mechanism
US5448812A (en) 1993-09-13 1995-09-12 Stabli AG Heald transfer station having locks positioned to control movement of healds
EP1105558B1 (de) 1998-08-17 2002-10-02 Stäubli AG Pfäffikon Vorrichtung und verfahren zum aufnehmen und halten bzw. zum verteilen von geschirrelementen
FR2930950A1 (fr) 2008-04-03 2009-11-13 Toyota Jidoshokki Kk Machine de rentrage
US8562272B2 (en) 2010-02-16 2013-10-22 Lam Research Corporation Substrate load and unload mechanisms for high throughput

Also Published As

Publication number Publication date
JP2022537112A (ja) 2022-08-24
EP3754070A1 (de) 2020-12-23
CN114008257A (zh) 2022-02-01
ES2951844T3 (es) 2023-10-25
WO2020254115A1 (de) 2020-12-24
US20220205148A1 (en) 2022-06-30
CN114008257B (zh) 2023-07-21
JP7511586B2 (ja) 2024-07-05
EP3754070C0 (de) 2023-06-07
US11668028B2 (en) 2023-06-06

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