EP1082477A1 - Tendeur de fil - Google Patents

Tendeur de fil

Info

Publication number
EP1082477A1
EP1082477A1 EP99929068A EP99929068A EP1082477A1 EP 1082477 A1 EP1082477 A1 EP 1082477A1 EP 99929068 A EP99929068 A EP 99929068A EP 99929068 A EP99929068 A EP 99929068A EP 1082477 A1 EP1082477 A1 EP 1082477A1
Authority
EP
European Patent Office
Prior art keywords
thread
brake
brake actuator
braking device
actuator
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.)
Withdrawn
Application number
EP99929068A
Other languages
German (de)
English (en)
Inventor
Hubert Kremer
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.)
Sucker Mueller Hacoba GmbH and Co
Original Assignee
Sucker Mueller Hacoba GmbH and Co
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 Sucker Mueller Hacoba GmbH and Co filed Critical Sucker Mueller Hacoba GmbH and Co
Publication of EP1082477A1 publication Critical patent/EP1082477A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02H—WARPING, BEAMING OR LEASING
    • D02H13/00—Details of machines of the preceding groups
    • D02H13/22—Tensioning devices
    • D02H13/24—Tensioning devices for individual threads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B65H59/10—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by devices acting on running material and not associated with supply or take-up devices
    • B65H59/20—Co-operating surfaces mounted for relative movement
    • B65H59/22—Co-operating surfaces mounted for relative movement and arranged to apply pressure to material
    • B65H59/225—Tension discs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the invention relates to a thread brake device, in particular on warping and slip systems, with two brake actuators traversed by a thread of a creel, which can be compressed or lifted apart from one another to adjust the tension of the thread required during winding operation.
  • a thread braking device with the aforementioned features is known from DE 35 05 913 C2.
  • the brake plates are arranged horizontally and the upper plate is firmly connected to a spring tensioning device, which allows the upper plate to be relieved of its weight and that of the tensioning device and even lifted off the lower plate to the extent that the use of the same thread tensioner for fine threads such as is also possible for coarse yarns.
  • the thread braking device described above belongs to the group whose braking means are in constant contact with the threads. Regardless of the set speed of a winding machine or the thread running speed, any tension of the thread or any thread pulling force can be achieved by a central adjustment of a thread braking device of a creel.
  • the invention has for its object to improve a thread brake device with the features mentioned above so that the tension of the thread can be generated by the brake plate, as well as completely independently, in order to be able to brake the entire range of threads without using different brakes to have to. It should therefore be possible to brake comparatively smooth threads, as well as threads with a hairy surface structure, for the braking of which the air resistance can be sufficient.
  • a brake actuator can be adjusted to an open position during winding operation, in which the thread passes through the brake actuator without contact.
  • a conventional disc brake is to be used both for conventional braking operation and in a winding operation in which the brake actuators do not contribute to the tension of the thread.
  • a single thread brake device is necessary in order to be able to tension threads of the entire thread range, that is threads with a smooth surface and threads with a hairy surface.
  • the type of winding operation can be predetermined depending on the threads to be tensioned and, if necessary, can also be changed during winding operation.
  • the use of a brake actuator in the open position has the advantage over conventional stop brakes that there is no guide pin in the clamping point area. Such a guide pin is required in conventional stop brakes for guiding a clamping jaw and applying it to the spring.
  • the thread braking device can be designed such that the openable brake actuator is locked in place by an adjusting device when in the open position.
  • the locking of the open brake actuator means that the cross-section of the construction available for the continuous thread is precisely defined accordingly. This ensures that the thread does not come into undesirable contact with the brake actuators during usual minor changes in position.
  • thread guide means on the thread feed and / or thread outlet side with respect to the brake plate.
  • the thread guiding means are selected in accordance with the thread tensioning task.
  • the thread guide means on the thread outlet side can be a drop needle of a thread break sensor. Slits in guide plates are also to be used as thread guide means. If radial thread guidance is to take place all around, thread guide eyelets can be used.
  • the brake actuators are arranged with a horizontal axis.
  • the thread guide means described above are particularly expedient in order to secure the thread running in a predetermined area between the brake actuators.
  • the vertical area between the brake actuators leads to improved lint dispensing, in particular when one brake actuator is in the open position. As a result, an improved consistency of the braking effect is to be expected because, due to the reduced concentration of lint, there is less adverse influence on the braking effect of the brake actuators.
  • the thread braking device in such a way that the brake actuator which can be opened is arranged facing away from the frame to the second brake actuator.
  • the construction for the open position of the brake actuator can take place completely uninfluenced by the thread brake device being required on the frame.
  • necessary training of the axially fixed brake actuator can be implemented in a structurally simple manner, for example a rotary drive of this axially fixed brake actuator.
  • the thread brake device can be designed such that the adjusting device of the brake actuator which can be opened has an angle lever, the first lever arm of which is articulated on the brake actuator which can be opened and the second lever arm of which is connected to a central adjusting device of a plurality of thread brake devices is coupled. It is at the same time achieved that the thread brake device is designed to be particularly advantageous in terms of construction for connection to a central adjustment device.
  • the angle lever is particularly suitable for an embodiment of the thread braking device in which the openable brake actuator is to be locked in place.
  • the stationary locking of the openable brake actuator can be achieved particularly advantageously in the case of a thread brake device if it is designed such that the adjusting device of the brake actuator which can be opened has a lever housing which stores the angle lever in the angle vertex, which is fixedly attached to a machine frame and a stop in which Has locking of the openable brake actuator. With the lever housing, the angle lever can not only be conveniently stored, it is also protected against malfunctions.
  • a very advantageous construction with regard to the use of several thread brake devices on a creel results from the fact that the machine frame has a vertical tension bar with a vertically relatively movable drop bar as part of the central adjustment device, and that the second angle levers of several thread brake devices on the tension bar are attached to the drop bar are coupled.
  • a plurality of mutually parallel vertical tension bars, as required for the operation of a creel, can then be adjusted centrally, for example by a common control on an upper one Crossbar of the machine frame.
  • the coupling of two angle levers to the drop bar of a tensioning bar can be easily designed with regard to all the necessary adjustment and setting needs.
  • An expedient coupling of all the second angle levers with regard to a central adjustment results from the fact that the coupling of the second angle lever to the drop bar takes place with a spring, the first end of which engages the angle lever and the second end of which engages a coupling part of the drop bar.
  • the characteristic of the spring can be selected so that the required range of pressing forces of the brake actuator which can be opened on the frame-side brake actuator can essentially be covered.
  • the thread brake device can be designed such that the coupling part is designed as a spring housing of a spring-loaded plunger, with which the second end of the angle lever can be acted upon by bridging the spring.
  • the ram acts on the angle lever independently of the spring described above so that the brake actuator which can be opened can assume its open position.
  • the spring action of the plunger serves to lock it on the adjusting device with a predetermined force.
  • the open brake actuator can be moved against the effect of the tappet, for example in the case of a check to check the smooth movement of the angle lever.
  • the thread brake device can be designed such that the brake actuator that can be opened has a handle designed as an articulated axle pin, to which the first lever arm of the angle lever is attached.
  • the second lever arm of the angle lever has a plurality of detent points for the first end of the spring or a rider connected to it, differently distant from the angle apex. It can effective length of the spring can be adjusted on the second lever arm so as to change the contact pressure of the brake actuator that can be opened on the frame-side brake actuator without having to replace the spring.
  • the second or frame-side brake actuator can be a simplified abutment of the brake actuator that can be opened if the thread brake device is designed such that the second brake actuator is axially immovably attached to a housing of the thread brake device. It remains unaffected to design the second brake actuator so that it is used to improve the self-cleaning effect of the thread brake device.
  • the latter can be designed such that the second brake actuator in the housing can be rotated by a toothed rack which is longitudinally guided therein and whose actuator can be switched off.
  • a simple rotary bearing can be designed for the rotational adjustability of the second brake actuator, and a rack guided by the housing is also very simple in terms of construction. It is useful to be able to switch off the actuator of the toothed rack if the thread brake device is operated with the brake actuator open, because then a significant amount of lint or contamination in the area of the brake actuator is not to be expected.
  • the invention also relates to a method with the features of the preamble of claim 15. In order to improve this method in the sense of the above-mentioned object, it is carried out in accordance with the features of the characterizing part of claim 15. Of particular importance are the advantages mentioned above for the thread braking device.
  • the method for braking the threads can be carried out in a special manner in that the thread is inserted into a circumferential groove formed by the brake actuators which are kept closed and placed between these plates at the beginning of the winding operation, and in that the brake plate which can be opened after running up in the Winding operation in its position is moved.
  • the brake plates with their closed circumferential groove serve as a threading aid.
  • the thread is braked by the brake actuators in accordance with the pressure prevailing here. If the brake actuator that can be opened is moved into its open position, this braking is completely released. Until then, the thread had been braked, thus allowing the threads to run up to a predetermined winding speed in an orderly manner, without causing a tangle of threads as a result of untensioned threads.
  • the method for braking threads can advantageously be carried out in such a way that the brake actuator located in its open position is adjusted to a clamping or braking position on the other brake actuator in the event of a winding stop or in the event of a predetermined thread running speed being undershot.
  • the brake actuators are pressed together quickly so that they assume a clamping position. If the thread speed falls below a predetermined value, the brake actuators can also be pressed against one another, but with a force which brings about a predetermined braking of the thread which continues to travel. In this case, therefore, there is a transition from the operation which is mechanically braked by the thread braking device to a mechanical braking operation brought about by the brake actuators.
  • the type of braking operation of the groups of known brakes described at the outset is changed, it being understood that if a predetermined thread running speed is exceeded with braking operation, the brake actuator can also be operated in such a way that the brake actuator which can be opened can be returned from its braking position to its open position is transferred.
  • Figure 1 is a schematic plan view of a slip system with a V-gate in a schematic representation and a corresponding one O
  • FIG. 2 shows representations of a warping system with a parallel creel corresponding to FIG. 1
  • FIG. 3 shows a longitudinal section of a thread braking device which is attached to a tensioning bar of a machine frame and an adjacent side view in the direction F,
  • FIG. 4 shows a cross section through the tensioning bar according to FIG. 3 in the area of the thread brake device shown uncut
  • FIG. 5 shows a view of the thread braking device corresponding to FIG. 3 on the right in the right part of the illustration and a representation turned by 180 degrees in the left part
  • Figure 6 is a modified sectional view of a
  • the slip system shown in Figure 1 essentially consists of a coil gate 1 designed as a V-gate, the gate halves 1 ', 1' 'of which are arranged at an angle of approximately 35 degrees to one another and are each equipped with rotating frames 45 arranged in rows.
  • the rotating frames 45 carry coils 3, which are arranged one above the other in vertical rows, the coils of two adjacent vertical rows being offset by the height of half the mandrel spacing of the coils.
  • Threads 4 run freely from the bobbins 3 by brakes 5, not shown, to a scissor comb 7 of a warping machine 2, which winds up the family of all the threads 4.
  • the warping system shown in Figure 2 consists essentially of a parallel gate 8 and a warping machine 9.
  • the warping machine 9 has a cone drum 9 ', with which a family of threads 4' is wound up in strips, which are each drawn off from bobbins 3 '. From the bobbins 3 ', the threads 4' are each guided through a thread braking device (not shown in FIG. 2) to eyelets 10 which are arranged in tiers and are located at the gate exit. From the eyelet strips 10 run the threads 4 'to the cone drum 9' of the warping machine 9.
  • a thread brake device 5 designed as a plate brake is assigned to each winding unit of the gates 1, 8. These thread braking devices are located on the schematically illustrated machine frames 46 of the gates 1.8.
  • Each machine frame 45 has a vertical tensioning bar 6, which is assigned to the winding positions of a vertical row of coils 3, 3 '.
  • the tensioning bar 6 is essentially U-shaped and a housing 21 is inserted and fastened between its U-legs 6 '. Between a plurality of housings 21 arranged one above the other, cover plates 47, which cover the inside of the tension strips 6, are inserted against the front so that functional elements can be arranged there, which serve to influence the thread braking device 5.
  • the cover plates 47 are approximately aligned with the front wall 21 'of the housing 21.
  • a bracket 48 fixedly connected thereto for mounting a brake actuator 14 of a pair of plates 14, 15.
  • the brake actuator 14 is supported by a pin 22.
  • the brake actuator 14 can be driven in rotation, but cannot be axially displaced.
  • the rotary drive is a gear 23 connected to the brake actuator 14, which in turn is to be driven by a rack 24.
  • the rack can be moved oscillating by a drive, not shown, that is, alternately up and down. Accordingly, the brake actuator 14 is rotated alternately in one direction of rotation and then in the other direction of rotation, which can contribute to cleaning the thread brake device.
  • the rack 24 is guided in the housing 21 so that its engagement in the gear 23 is ensured accordingly.
  • the housing 21 also carries a drop bar 32, which is used to control the thread braking device 5.
  • the thread brake device has a further brake actuator 15 which can be moved into an open position 15 ', which is shown in broken lines in FIGS. 3 and 4. In this open position 15 ', the brake actuator 15 is at a considerable distance from the brake actuator 14, so that the thread 4 can pass between the two brake actuators 14, 15 without contact.
  • the course of the thread 4 between the brake actuators 14, 15 is influenced by thread guide means which are arranged on the thread feed side and on the thread discharge side.
  • the insertion aid 12 is designed such that its edge 12 'facilitates the insertion of a thread 4 into a circumferential groove 19 which the two brake actuators 14, 15' form with their conical circumferential regions 14 '', 15 ''.
  • the thread 4 can be passed through an eyelet 13.
  • the eyelet 13 is pivotally attached to the insertion aid 12 as shown in FIG. 4 and can be swiveled into the dot-dash position behind the slot, so that it then prevents radial displacement of the thread 4 in accordance with its eyelet width, ie also where the slot is not effective can be.
  • the eyelet 13 is designed, for example, as a saucy tail.
  • the pivotable eyelet 13 is used in particular in the case of threads 4 whose structural structure causes them to be driven out of the plates 14, 15.
  • a guide plate 18 is provided on the thread outlet side.
  • This has a horizontal wear-resistant slot 17, in which the thread is angled from a direction perpendicular or essentially perpendicular to the longitudinal axis of the creel 1.8, in order to be fed to the warping machine 2 or the cone warping machine 9, as shown in FIG. 1.2 is indicated schematically.
  • a nose 20 prevents the thread from retracting upwards.
  • a thread break sensor 16 is adjacent to the slot 17 of the guide plate 18. This indicates when the thread is no longer there is present, for example in the event of a thread break.
  • the thread break sensor 16 can be designed, for example, as a conventional drop needle.
  • a lever housing 25 is formed or attached to the housing 21.
  • the lever housing 25 supports an angle lever 26 with a bearing pin 27 in the angle apex. Starting from this, two lever arms 26 ', 26' 'extend.
  • the lever arm 26 ' is essentially parallel to the tension bar and the lever arm 26' 'is arranged essentially vertically to the tension bar 6. It is used for coupling to the drop rod 32.
  • the lever arm 26 ′′ serves for coupling to the brake actuator 15.
  • the handle 36 or the pressure piece allows the plate 15 to be moved out of the contact position shown on the right in FIG. 3, in order to be able to remove lint if necessary, namely when the thread braking device 5 is operating with the brake actuator 5.
  • the handle 36 protrudes from a housing opening 36 'and can also be recognized according to its outstanding length, whether the brake actuator 15 is arranged in the contact position on the brake actuator 14 or in its open position 15 '.
  • the pivoting movements of the angle lever 26 are controlled by means of the drop rod 32, which is moved vertically upwards or downwards by a central adjustment device (not shown). This movement is transmitted to the angle lever 26, specifically to the second lever arm 26 ′′.
  • a spring housing 30 is provided on the drop rod 32 for the transmission. hand and attached to it with a fastening screw 31.
  • the spring housing 30 has a projection 29 on which a second end of a spring 28 engages, the first end of which is hooked onto a locking point 51 of the lever arm 26 ′′.
  • the drop rod 32 pulls the angle lever 26 into the position A shown with solid lines, which characterizes the brake actuator operation of the thread braking device 5.
  • the lever arm 26 ′′ is acted upon by a plunger 33 of the spring housing 30.
  • the plunger 33 is arranged parallel to the fall bar in a recess in the spring housing 30, in which a compression spring 34 acts on the plunger 33. Accordingly, the angle lever 26 and thus the brake actuator 15 are pressed according to the spring characteristic of the compression spring 34 against the stop 35 of the lever housing 25.
  • the spring 28 is bridged.
  • Figure 6 shows an embodiment of the lever arm 26 with a total of 3 locking points 37 for a rider 38, the tip 39 of which can engage in one of the locking points 37 designed as notches. Since the locking points 37 are arranged at different distances from the pin 27 for pivoting the angle lever 26, the effective lever length with which the spring 28 acts on the angle lever 26 changes accordingly. The contact pressure of the brake actuators 14, 15 can be changed accordingly. This makes it possible to set the contact pressure ranges without having to replace the spring 28.
  • the slide 38 is moved with a handle 40 which is guided outwards through an access slot 41 in the bottom of the tensioning bar.
  • Figure 6 shows the different positions D, C and E of the spring 28 by three different dash-dotted lines.
  • the thread braking device 5 can be operated in two fundamentally different ways of working.
  • the first mode of operation which is conventional for disk brakes
  • the brake disks 14, 15 are pressed against one another with a centrally set contact pressure and a pulled through between them Thread 4 is tensioned accordingly.
  • Thread 4 is tensioned accordingly.
  • Such a mode of operation comes into consideration above all when using the thread braking devices 5 according to Figure 2, that is to say in connection with bobbin creels 8 according to Figure 2.
  • the further mode of operation is that of the free thread passage between the brake actuators 14, 15.
  • the brake actuator 15 is moved into its open position 15 '.
  • the thread is not slowed down by the plates 14, 15. Rather, with the exception of the deflection points, its tension occurs exclusively through air friction. If this operation of the thread braking device 5 is to be ended, for example because the thread is no longer being wound up, the brake actuator 15 can be pushed suddenly against the brake actuator 14. This is effected with the drop bar 32.
  • mixed operation is also conceivable such that the brake actuator 15 is switched to the operating state when the thread speed 4 required for the tension of the thread 4 is undershot, in which the plates 14, 15 tension the thread 4 between them.
  • the plates 14, 15 are pressed against one another with centrally set pressure.
  • a thread 4 is threaded through a slot 11 into the circumferential groove 19 of the plates 14, 15 and then pulled between the brake plates. Then the thread 4 is pulled under the nose 20 of the guide plate 18 and from there to the winding machine.
  • the brake plate 15 moves into its open position 15 ', so that the thread 4 passes through the brake plates 14, 15 without contact.
  • the thread braking device 5 described above can be used advantageously in particular in the case of a V-gate 1. It enables the use of the V-gate with fibrous threads, in that it is then operated with open brake actuators 14, 15. At the same time, however, it also enables V-gates to be used on smooth threads, whereby you can then use closed brake plates 14,15 is operated.
  • the drive of the brake actuator then works oscillating if necessary. The oscillating disc drive removes dust.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Tension Adjustment In Filamentary Materials (AREA)

Abstract

L'invention concerne un procédé permettant de freiner des fils, notamment dans des systèmes d'ourdissage de trame et de chaîne, selon lequel un fil (4) d'un cantre à bobines est passé entre deux plateaux de frein (14, 15). La tension requise pour le fil en cas de mode d'enroulement est produite par compression ou écartement des plateaux de frein. Afin de pouvoir traiter toute la palette de fils avec un seul frein, il est prévu qu'en mode d'enroulement, un plateau de frein (15) soit déplacé dans une position d'ouverture (15') où le fil (4) parcourt les plateaux de frein (14, 15) sans contact.
EP99929068A 1998-05-27 1999-05-03 Tendeur de fil Withdrawn EP1082477A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19823613 1998-05-27
DE1998123613 DE19823613A1 (de) 1998-05-27 1998-05-27 Fadenbremsvorrichtung
PCT/DE1999/001283 WO1999061691A1 (fr) 1998-05-27 1999-05-03 Tendeur de fil

Publications (1)

Publication Number Publication Date
EP1082477A1 true EP1082477A1 (fr) 2001-03-14

Family

ID=7869028

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99929068A Withdrawn EP1082477A1 (fr) 1998-05-27 1999-05-03 Tendeur de fil

Country Status (3)

Country Link
EP (1) EP1082477A1 (fr)
DE (1) DE19823613A1 (fr)
WO (1) WO1999061691A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1595985B1 (fr) * 2004-04-16 2006-06-21 KARL MAYER TEXTILMASCHINENFABRIK GmbH Système de détection de fil

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE257215C (fr) *
DE2362481A1 (de) * 1973-12-15 1975-06-19 Schlafhorst & Co W Regelbare fadenbremsvorrichtung an zettelgattern oder anderen umspulmaschinen
DE3145990A1 (de) * 1981-11-20 1983-06-01 W. Schlafhorst & Co, 4050 Mönchengladbach Zentral schaltbare fadenbremsvorrichtung
DE3228282A1 (de) * 1982-07-29 1984-02-09 W. Schlafhorst & Co, 4050 Mönchengladbach Aggregat von traeger und fadenspannvorrichtungen fuer ein spulengatter
CH663401A5 (de) * 1984-05-03 1987-12-15 Benninger Ag Maschf Fadenspannvorrichtung an einem spulengatter.
US4598184A (en) * 1985-04-16 1986-07-01 West Point Foundry And Machine Co. Thread tension monitoring and clamping apparatus
DE3629928A1 (de) * 1986-09-03 1988-03-10 Norddeutsche Faserwerke Gmbh Schaeranlage und tellerfadenbremse
US4880175A (en) * 1987-04-14 1989-11-14 Murata Kikai Kabushiki Kaisha Tension setting and controlling method and apparatus in an automatic winder
JPH02200834A (ja) * 1989-01-31 1990-08-09 Baba Sangyo Kikai Kk 整経機の張力制御装置
CH684268A5 (de) * 1991-06-20 1994-08-15 Benninger Ag Maschf Fadenspannvorrichtung an einem Spulengatter.
DE9110404U1 (de) * 1991-08-22 1991-11-28 Hacoba Textilmaschinen GmbH & Co KG, 42281 Wuppertal Tellerbremse für Textilfäden
DE9306680U1 (de) * 1993-05-04 1993-07-01 Hacoba Textilmaschinen Gmbh & Co Kg, 5600 Wuppertal Spulengatter

Non-Patent Citations (1)

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Title
See references of WO9961691A1 *

Also Published As

Publication number Publication date
DE19823613A1 (de) 1999-12-02
WO1999061691A1 (fr) 1999-12-02

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