EP0459553A1 - Verfahren und Vorrichtung für die Spulenversorgung von Webmaschinen in einer Weberei - Google Patents

Verfahren und Vorrichtung für die Spulenversorgung von Webmaschinen in einer Weberei Download PDF

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Publication number
EP0459553A1
EP0459553A1 EP91201079A EP91201079A EP0459553A1 EP 0459553 A1 EP0459553 A1 EP 0459553A1 EP 91201079 A EP91201079 A EP 91201079A EP 91201079 A EP91201079 A EP 91201079A EP 0459553 A1 EP0459553 A1 EP 0459553A1
Authority
EP
European Patent Office
Prior art keywords
weaving
yarn
weft
bobbins
reserve
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Withdrawn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
EP91201079A
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English (en)
French (fr)
Inventor
Robert Baeck
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.)
Picanol NV
Original Assignee
Picanol NV
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 Picanol NV filed Critical Picanol NV
Publication of EP0459553A1 publication Critical patent/EP0459553A1/de
Withdrawn legal-status Critical Current

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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B65H63/08—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to delivery of a measured length of material, completion of winding of a package, or filling of a receptacle
    • B65H63/086—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to delivery of a measured length of material, completion of winding of a package, or filling of a receptacle responsive to completion of unwinding of a package
    • 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 present invention relates to a method and a device for supplying spools of weaving machines in a weaving workshop, and more particularly, for supplying weaving machines with bobbins for feeding weft yarn.
  • the present invention relates to a method for ensuring the timely supply of bobbins to weaving machines of a weaving workshop, without the need for bulky bobbins and using a minimum of transport devices.
  • the invention relates to a method for supplying spools of weaving machines in a weaving workshop, and more particularly in a weaving workshop providing a number of spools in reserve and means for bringing these bobbins in weaving machines, characterized in that the method essentially consists in determining for each weaving machine a value which is representative of the time interval during which each type of weft yarn necessary for the execution of the weaving in progress is still available and to order the means ensuring the routing of the bobbins according to the values obtained.
  • the invention also relates to a device for supplying spools of weaving machines in a weaving workshop, characterized in that it consists essentially of the combination of the following elements: a certain quantity of supply spools; means for routing the bobbins to the weaving machines; control means which control for each thread feed channel of each weaving machine the time interval during which each type of weft thread necessary for the execution of the weaving in progress is still available, and which generate signals corresponding output; and a control unit which controls the means ensuring the routing of the coils as a function of the output signals from the control means.
  • the invention makes it possible to route the bobbins to the weaving machines according to the urgency, so as, for example, to route first the bobbins whose supply must be ensured in the most urgent manner to ensure the continuity of operation of all weaving machines.
  • the device according to the invention also makes it possible to limit the routes of the transport mechanism to a minimum by organizing an adequate supply in a systematic manner.
  • Figure 1 shows a schematic view of the device according to the invention
  • Figure 2 shows part of the device according to the invention
  • Figures 3 and 4 each show a different position of a concrete embodiment of the part identified in Figure 2 by F3
  • FIG. 5 represents a variant of the part of the device illustrated in FIG. 2.
  • Figure 1 shows a schematic view of a weaving workshop, in which the respective weaving machines 1 are identified by the letters A to X. All the weaving machines 1 are provided with spool holders 2 carrying spools 3A-3B for feeding the weft thread during weaving.
  • the device according to the invention intended for the supply of bobbins of such weaving machines here consists of the combination of the following elements: a certain quantity of feed bobbins 3C; means 4 for routing the spools 3C mentioned above to the weaving machines 1; control means 5 which control for each weaving machine the interval or time intervals during which each type of weft yarn necessary for the execution of the weaving in progress is still available, and which generate corresponding output signals; and a control unit 6 which controls the means 4 ensuring the routing of the coils 3C as a function of the output signals from the control means 5.
  • the quantity of feed spools 3C can be placed in a magazine 7.
  • This magazine 7 contains bobbins 3C of all types and all colors of weft thread used for the work of the weaving workshop.
  • the means 4 for routing the spools 3C to the weaving machines 1 consist, for example, of a transport device 8 moving along the weaving machines 1, and, if necessary, an auxiliary device 9 intended for loading the spools 3C on the transport device 8.
  • the transport device 8 can consist of a carriage provided with a drive 10 allowing its displacement along a rail, for example an inductive current rail 11.
  • the transport apparatus can also consist of a carriage of the type described in Belgian Patent No. 903,191.
  • the carriage is provided with a support 12 which can contain a certain amount of spools 3C, and can be provided with a mechanism 13, such as for example a robotic arm, for placing the spools 3C on the weaving machines 1 and possibly for remove the empty coils 3A-3B.
  • the mechanism 13 can be provided with a certain number of accessories, such as for example an apparatus 14 intended to connect the weft thread of the reel 3C routed to the weft thread of one of the reels 3A-3B being use. However, nothing prevents the provision of this type of mechanism 13 at the level of the weaving machines.
  • the transport device 8 can be provided with complete automatic control from the central control unit 6. Alternatively, the transport device 8 receives information from the central control unit 6 display, for example, on a signaling board 15, for the benefit of a driver who can pilot the transport device 8 to the place indicated to carry out, manually or automatically, the necessary maneuver.
  • the control means 5, which control for each weaving machine 1 the time interval during which each type of weft thread necessary for the execution of the weaving in progress is still available, can be of different types depending on the method used. We describe below a series of examples.
  • FIG. 2 schematically represents a device for supplying the weft yarn of a weaving machine.
  • the device has two wire feed channels 16 and 17 for the weft threads 18A and 18B, respectively.
  • Each wire supply channel is here composed of at least one coil 3A, a wire delivery device 19 such as for example a pre-deliverer, and insertion means 20.
  • the pre-deliverers 19 consist of a fixed pre-deliverer drum 21, a winding tube 22, a control 23 such as an electric motor and intended to control the winding tube 22, and possibly d a blocking element 24 intended to retain or release alternately the weft threads 18A and 18B of the pre-delivery drum 21.
  • the insertion means 20 consist of blowers intended to introduce the weft thread 18A or 18B into the shed 25. It is however clear that these insertion means 20 can consist of a common blower to the two wires, preceded by an interchangeable wire guide channel. In the case of a lance machine, these insertion means consist of a wire presentation device making it possible to place the weft wire 18A or 18B on the path of the gripper.
  • each wire supply channel a reserve coil 3B connected to the coil 3A during use.
  • the weft threads of the coils 3A and 3B are knotted together or connected together in another way, such as for example by means of a splice.
  • FIG. 2 shows again other elements, such as detectors 26 and 27 for the detection of wire breaks, detectors 28 for the detection of a passage between two coils 3A and 3C, detectors 29 detecting the angle of rotation of the winding tube 22, detection means 30 recording the arrival in the crowd 25 of each weft thread inserted and, optionally, a number of detectors 31 measuring the diameters of the supply coils 3A and 3B .
  • control unit 32 specific to the weaving machine 1 concerned.
  • This control unit 32 controls the drives 23 of the winding tubes 22, as well as the locking elements 24.
  • certain parts of this control unit 32 can be integrated into certain elements of the weaving machine.
  • the control unit 32 or certain parts of this unit can be integrated into the central control unit 6 mentioned above.
  • leaf 33 and the comb 34 are schematically represented in FIG. 2.
  • control means 5 mentioned above and which control for each weaving machine 1 the time interval during which each type of weft thread necessary for the execution of the weaving in progress, in this case the weft threads 18A and 18B, is still available, can be of different types depending on the method used.
  • the time interval mentioned above is determined as a function of the quantity of weft yarn which remains available for the wire feed channel 16 or 17 concerned and the average consumption of the weft yarn concerned , 18A or 18B respectively.
  • the average consumption of weft yarn 18A or 18B is determined by the control unit 32 as a function of the insertion pattern or of the frequency with which the picks of a given weft thread 18A or 18B are conveyed in the crowd. It is clear that if the weft thread 18A is red and the weft thread 18B blue and the weaving pattern provides five blue threads for a red, the average consumption of the weft thread 18A red will be five times less than the consumption wire average 18B blue frame.
  • the determination of the amount of weft yarn 18A and 18B, respectively, remaining available for the yarn supply channel 16 and 17 respectively, can be carried out in different ways. Some possibilities will be described below, without these descriptions being limiting.
  • the number of times that the presentation arm of a determined weft thread has been activated can be counted for this.
  • the number of insertions can also be counted by means of a signal 35 from the detection means 30, although this system is less precise, since all the insertions are not always detected.
  • the number of insertions carried out since the commissioning of a full reel can also be determined by means of the number of turns 36 arranged on the pre-delivery drum 21.
  • T1 (WT -WI) / Y
  • WT is the number of insertions which can be carried out normally from a full coil
  • WI the number of insertions carried out since the commissioning of the coil 3A concerned and counted by the control unit 32
  • Y the average number of insertions of the weft thread 18A or 18B concerned carried out per unit of time, at normal weaving speed.
  • T1 (WT + WT -WI) / Y.
  • the device can also be provided with a function self-learning, so that the control unit 32 calculates the total length of wire present on the coil 3A or 3B concerned or the number of insertions WT that can be made using this length, by based on the prior measurement of the quantity of wire available on the new coils by means of the detectors 31.
  • the control unit 32 is equipped with a number of counting 39 and calculation 40 units which allow it to carry out the above-mentioned calculation operations and thus to transmit an output signal to the central control 6.
  • a reserve coil is permanently provided, in other words when two coils 3A and 3B are connected together, the passage from one coil to the other can be detected by a detector 28 as mentioned above. It is important to detect this passage to know from when to reset the count of the number of WI insertions.
  • FIG. 3 gives an example of such a detector.
  • This detector 28 essentially consists here of a frame 41 comprising a cutout 42, a rocking element 43 collaborating with the cutout 42, a magnet 44 or a similar element and a switch 45.
  • the rocking element 43 is executed in L shape, rocker at the angle around a hinge point 46 and has two branches 47 and 48 of unequal length.
  • the various elements are arranged so that the tilting element 43 can occupy two positions, on the one hand a position illustrated in FIG. 3, in which under the effect of gravity the shortest branch 47 presses against a stop 49 while the longest branch 48 closes the passage of the cutout 42 and, on the other hand, a position illustrated in FIG. 4, in which the longest branch 48 is held in the high position by a magnet 44 while that the shortest branch 47 closes the cutout 42.
  • the weft thread 18A or 18B concerned is in the cutout 42 behind the longest branch 48.
  • the weft thread 18A or 18B concerned is pulled out of the cutout 42, which pivots the tilting element 43 and brings it, under the effect of the magnet 44, in the position illustrated in FIG. 4.
  • This movement controls the switch 45, which is for example a micro-switch, and which then sends a signal 50 to the control unit 32, possibly controlling at the same time the lighting of a signaling visual 51.
  • the detectors 31 can also be used to detect whether a new coil 3C has or has not been tied. It is then possible to provide a push button 52, to be actuated by the weaver after having tied a new reel. It is of course possible to provide such a push button 52 for each wire supply channel. Alternatively, such a push button can be provided at the height of the spool holder, so that it can interact with the spool casing, so that when a spool is placed on the spool holder , a signal is generated automatically.
  • alternative solution is meant the possibility of solutions which make it possible to supply a weaving machine 1 with weft yarn of a determined type without resorting to the usual supply spools, but by using other yarn in their place. bobbins with the type of weft thread mentioned above.
  • three yarn supply channels 53, 54 and 55 provide the weft yarn 18C, 18D and 18E, necessary for normal weaving.
  • the device is provided with a separate supply channel 56 which can be supplied, as desired, with different weft threads present on several 3D coils, for example the weft threads 18C, 18D and 18E mentioned above.
  • means 57 are provided for routing, as desired, one of the weft threads 18C, 18D or 18E to the delivery device 19.
  • the means 57 which have just been mentioned consist for example of an apparatus 58 intended to connect weaving threads and of means 59 intended to hold the various weft threads 18C, 18D and 18E and to present them to each other. others, so that by cutting the weft yarn from a 3D spool and tying the weft yarn from another 3D spool, we can automatically switch from one 3D spool to another.
  • FIG. 5 also presents a certain number of elements such as detectors 60 intended to check the quantity of wire available on the pre-delivery drums 21, auxiliary blowers 61, the drive 62 of the leaf 33 and a indicator lamp 63 which indicates that the wire feed channel 56 is activated.
  • the wire feed channel 56 is intended to serve as a reserve channel making it possible, in the event of a wire break or similar event, to present the desired weft thread 18C, 18D or 18E in front of the crowd 25 with only one supply device 19.
  • the detector 26 of the supply channel 54 has detected an interruption 64, determining the setting when the supply device 19 for this wire feed channel 54 is stopped and the supply of an identical weft thread 18D passing through the wire feed channel 56.
  • the supply channel 56 can also serve as an alternative to the wire supply channels 53, 54 and 55 in the event that one of the corresponding coils 3A is fully unwound.
  • the determination according to the invention of the time interval T1 mentioned above may possibly take account of this alternative solution.
  • the time interval during which, for example, the weft thread 18C is still available will correspond to the sum of the quantities of weft thread 18C available in the thread feed channels 53 and 56.
  • the reserves available through the alternatives will preferably only be taken into account when the timely supply of coils would be critical if not used, and more particularly when a predetermined minimum limit of available thread is reached.
  • Bidirectional communication lines 65 and 66 between the central control unit 6 and the control units 32 of the weaving machines 1, as well as between the central control unit 6 and the transport device 8, make it possible to determine when a given 3C spool should be placed in a specific location on a given weaving machine.
  • the central control unit 6 ensures that the means 4, more particularly the transport device 8, moves from one weaving machine to another in such a way that, as a function of the yarn reserve present on a weaving whatsoever, it is always supplied on time. It is clear that by applying the method described above, the supply of spools of the various weaving machines proceeds in an optimal manner.
  • the path of the transport device 8 can be determined purely logically, according to logic provided by the manufacturer.
  • the transport device 8 will carry out, at a given speed, a route such as possibly supplying the weaving machines M and N when passing through bobbins 3C, the transport device 8 can supply the first machine P mentioned in time. It is clear that the supply of a new 3C coil can only take place when a supply coil in use 3A or 3B is empty. According to the above method, the means 4 can anticipate the event and already go to the weaving machine concerned before the spool mentioned above is completely empty.
  • a first weaving machine K is to be supplied within 20 minutes and a second machine E within 10 minutes, it is nevertheless possible that the weaving machine K is supplied first, for example because the second weaving machine E has an alternative solution.
  • the central control unit 6 can also determine which supply coils 3C, and more particularly which types of weft threads, will be loaded on the transport device 8 during its next visit to the store 7.
  • the auxiliary device 9 constantly prepares the necessary coils 3C.
  • the invention makes it possible to choose the path of the means 4 in such a way that a minimum number of transport devices 8 allows the timely supply of all the weaving machines.
  • the central control unit 6 can determine, for example, that seven blue, six green and three red spools must be removed from the store to be conveyed to the weaving machines A, C, F, J, K, Q and R, to weaving machines C, E, H, P, Q and W, and to weaving machines F, H and K, respectively, in order A, F, E, C, H, J, K, P, Q, R and W. It is clear that each time the transport device 8 passes through the magazine 7, a maximum quantity of reels will be placed on the transport device 8, without ever exceeding the number maximum of coils that the transport device 8 can transport.
  • the knotting of a new reel is carried out before it has reached a certain lower limit. If, exceptionally, this lower limit was reached all the same, the yarn feed channel will preferably be disabled and a spare feed channel will be enabled or the weaving machine will be stopped. In this way, the advantage is obtained that it will never be necessary to completely thread the wire supply channel concerned because a spool has unwound completely and that it is at any time possible to tie the spool. next supply to the coil in use.
  • the method according to the invention also makes it possible to check without difficulty whether a spool still has a sufficient reserve of wire.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Quality & Reliability (AREA)
  • Looms (AREA)
EP91201079A 1990-05-28 1991-05-06 Verfahren und Vorrichtung für die Spulenversorgung von Webmaschinen in einer Weberei Withdrawn EP0459553A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE9000551A BE1004346A3 (nl) 1990-05-28 1990-05-28 Werkwijze en inrichting voor het bevoorraden van weefmachines met voorraadspoelen in een weverij.
BE9000551 1990-05-28

Publications (1)

Publication Number Publication Date
EP0459553A1 true EP0459553A1 (de) 1991-12-04

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EP91201079A Withdrawn EP0459553A1 (de) 1990-05-28 1991-05-06 Verfahren und Vorrichtung für die Spulenversorgung von Webmaschinen in einer Weberei

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BE (1) BE1004346A3 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0500389A1 (de) * 1991-02-21 1992-08-26 Tsudakoma Kogyo Kabushiki Kaisha Verfahren und Mechanismus zur Vorbereitung von Schussfadenspulen
ITMI20111252A1 (it) * 2011-07-06 2013-01-07 Btsr Int Spa Dispositivo e metodo di rilevamento del cambio di bobina di alimentazione di un filato
CN110528135A (zh) * 2019-09-25 2019-12-03 山东日发纺织机械有限公司 一种筒纱更换装置和一种纺织系统生产线

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE905312C (de) * 1950-10-23 1954-03-01 Ing Franz Czernilofsky Stahlbeton-Skelettwand aus Hohlraum-Bauelementen
US3928752A (en) * 1973-09-24 1975-12-23 Frank S Darwin Bobbin monitor for sewing machines
US4195292A (en) * 1978-03-09 1980-03-25 Puhich Joseph M Programmable bobbin thread detector
BE903191A (nl) * 1985-09-06 1986-03-06 Picanol Nv Verbeterde weefzaal
DE3614654A1 (de) * 1986-04-30 1987-11-05 Prologistik Ges Fuer Informati Einrichtung zur ueberwachung und beschickung von spinnmaschinen
FR2618167A1 (fr) * 1987-07-14 1989-01-20 Tokai Ind Sewing Machine Machine a broder.
DE3828730A1 (de) * 1987-08-24 1989-03-16 Toyoda Automatic Loom Works Steuersystem fuer den austauschteiltransport von webstuehlen
EP0360054A1 (de) * 1988-09-17 1990-03-28 W. SCHLAFHORST AG & CO. Verfahren und Vorrichtung zur Versorgung der Spinnstellen eines Spinnautomaten mit Faserband

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE905312A (nl) * 1986-08-22 1987-02-23 Picanol Nv Inrichting voor de detektie van een bobijnwissel bij weefmachines.

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE905312C (de) * 1950-10-23 1954-03-01 Ing Franz Czernilofsky Stahlbeton-Skelettwand aus Hohlraum-Bauelementen
US3928752A (en) * 1973-09-24 1975-12-23 Frank S Darwin Bobbin monitor for sewing machines
US4195292A (en) * 1978-03-09 1980-03-25 Puhich Joseph M Programmable bobbin thread detector
BE903191A (nl) * 1985-09-06 1986-03-06 Picanol Nv Verbeterde weefzaal
DE3614654A1 (de) * 1986-04-30 1987-11-05 Prologistik Ges Fuer Informati Einrichtung zur ueberwachung und beschickung von spinnmaschinen
FR2618167A1 (fr) * 1987-07-14 1989-01-20 Tokai Ind Sewing Machine Machine a broder.
DE3828730A1 (de) * 1987-08-24 1989-03-16 Toyoda Automatic Loom Works Steuersystem fuer den austauschteiltransport von webstuehlen
EP0360054A1 (de) * 1988-09-17 1990-03-28 W. SCHLAFHORST AG & CO. Verfahren und Vorrichtung zur Versorgung der Spinnstellen eines Spinnautomaten mit Faserband

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0500389A1 (de) * 1991-02-21 1992-08-26 Tsudakoma Kogyo Kabushiki Kaisha Verfahren und Mechanismus zur Vorbereitung von Schussfadenspulen
US5238098A (en) * 1991-02-21 1993-08-24 Tsudakoma Kogyo Kabushiki Kaisha Preparation method and preparation mechanism of weft packages
ITMI20111252A1 (it) * 2011-07-06 2013-01-07 Btsr Int Spa Dispositivo e metodo di rilevamento del cambio di bobina di alimentazione di un filato
WO2013005087A1 (en) * 2011-07-06 2013-01-10 Btsr International S.P.A. Device and method for sensing a change of yarn feed bobbin
CN103339530A (zh) * 2011-07-06 2013-10-02 B.T.S.R.国际股份公司 用于感测给纱筒管的改变的设备和方法
US8736833B2 (en) 2011-07-06 2014-05-27 Bstr International S.P.A. Device and method for sensing a change of yarn feed bobbin
CN110528135A (zh) * 2019-09-25 2019-12-03 山东日发纺织机械有限公司 一种筒纱更换装置和一种纺织系统生产线
CN110528135B (zh) * 2019-09-25 2024-04-19 山东日发纺织机械有限公司 一种筒纱更换装置和一种纺织系统生产线

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