EP4032842A1 - Garnverarbeitungsanlage - Google Patents

Garnverarbeitungsanlage Download PDF

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Publication number
EP4032842A1
EP4032842A1 EP22150929.2A EP22150929A EP4032842A1 EP 4032842 A1 EP4032842 A1 EP 4032842A1 EP 22150929 A EP22150929 A EP 22150929A EP 4032842 A1 EP4032842 A1 EP 4032842A1
Authority
EP
European Patent Office
Prior art keywords
yarn
supply package
information
time
yarn supply
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.)
Pending
Application number
EP22150929.2A
Other languages
English (en)
French (fr)
Inventor
Norihiro Nagai
Tomoya Takahashi
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.)
TMT Machinery Inc
Original Assignee
TMT Machinery Inc
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 TMT Machinery Inc filed Critical TMT Machinery Inc
Publication of EP4032842A1 publication Critical patent/EP4032842A1/de
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
    • B65H67/02—Arrangements for removing spent cores or receptacles and replacing by supply packages at paying-out stations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H49/00—Unwinding or paying-out filamentary material; Supporting, storing or transporting packages from which filamentary material is to be withdrawn or paid-out
    • B65H49/02—Methods or apparatus in which packages do not rotate
    • B65H49/04—Package-supporting devices
    • B65H49/10—Package-supporting devices for one operative package and one or more reserve packages
    • B65H49/12—Package-supporting devices for one operative package and one or more reserve packages the reserve packages being mounted to permit manual or automatic transfer to operating position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H49/00—Unwinding or paying-out filamentary material; Supporting, storing or transporting packages from which filamentary material is to be withdrawn or paid-out
    • B65H49/18—Methods or apparatus in which packages rotate
    • B65H49/20—Package-supporting devices
    • B65H49/32—Stands or frameworks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/28—Traversing devices; Package-shaping arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/40—Arrangements for rotating packages
    • 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
    • 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
    • B65H63/006—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package quality control of the 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
    • 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
    • B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
    • B65H67/04—Arrangements for removing completed take-up packages and or replacing by cores, formers, or empty receptacles at winding or depositing stations; Transferring material between adjacent full and empty take-up elements
    • B65H67/0405—Arrangements for removing completed take-up packages or for loading an empty core
    • B65H67/0411—Arrangements for removing completed take-up packages or for loading an empty core for removing completed take-up packages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
    • B65H67/08—Automatic end-finding and material-interconnecting arrangements
    • B65H67/081—Automatic end-finding and material-interconnecting arrangements acting after interruption of the winding process, e.g. yarn breakage, yarn cut or package replacement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H71/00—Moistening, sizing, oiling, waxing, colouring or drying filamentary material as additional measures during package formation
    • 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 yarn processing facility.
  • Patent Literature 1 (Published Japanese Translation of a PCT application No. 2003-526584 ) discloses an apparatus (yarn processing facility) which is configured to form a winding assembly (wound package) by processing a yarn unwound from a yarn supply package (supply bobbin in Patent Literature 1) which is formed by winding the yarn onto the yarn supplying bobbin and then winding the yarn onto a winding bobbin.
  • the yarn processing facility is arranged to be able to support two yarn supply packages for one winding bobbin.
  • An object of the present invention is to provide a yarn processing facility which is able to significantly improve production management.
  • a yarn processing facility includes: a yarn processor including: a yarn supplying unit including at least one yarn supply package retaining portion capable of supplying at least one yarn; a processing unit configured to process the at least one yarn supplied from the yarn supplying unit; and a winding unit configured to form a wound package by winding the at least one yarn processed by the processing unit onto a winding bobbin; and an information management unit which is configured to manage information regarding the yarn processor, each of the at least one yarn supply package retaining portion being capable of uninterruptedly supplying the at least one yarn, when plural yarn supply packages are attachable to and detachable from the each of the at least one yarn supply package retaining portion and a terminal portion of a yarn in one yarn supply package is connected to a start end portion of a yarn in another yarn supply package from which the yarn is to be unwound next to the one yarn supply package, and the information management unit being capable of acquiring initial amount information regarding an initial amount of a yarn in a yarn supply package before unwinding of the
  • the initial amount information can be acquired, for example, at the time of attachment of the yarn supply package to the yarn supplying unit.
  • the unwinding unit amount information can be acquired when an operation setting of the yarn processing facility is performed.
  • the unwinding start time information can be acquired by, for example, detecting switching of a yarn supply package from which a yarn is unwound, by using a sensor or the like.
  • unwinding start time information of a given yarn supply package has been known
  • unwinding start time information of another yarn supply package from which a yarn is to be unwound next can be estimated by a calculation by using initial amount information, unwinding unit amount information, and unwinding start time information regarding the given yarn supply package. It is therefore possible to obtain a yarn processing facility which is able to significantly improve production management.
  • a weight sensor for measuring the weight of a yarn supply package may be provided for each yarn supplying unit. This, however, disadvantageously increases the cost of the facility.
  • the present invention makes it possible to avoid such cost increase.
  • the yarn processing facility of the first aspect is arranged such that the information management unit acquires, as the initial amount information, information of initial weight and fineness of a yarn in a yarn supply package, and as the unwinding unit amount information, information of unwinding speed indicating the length of a yarn unwound from a yarn supply package per unit time.
  • initial weight of a yarn supply package can be easily acquired by setting or measurement
  • unwinding speed can be easily acquired by setting or measurement
  • unwinding unit amount information is easily dealt with.
  • the initial weight has a dimension of mass
  • the unwinding speed has a dimension of length.
  • calculations regarding time and/or remaining amount cannot be performed based only on initial weight, unwinding speed, and an unwinding start time, because the units cannot be unified.
  • information of fineness (weight per unit length) that can be acquired in advance is acquired as initial amount information. This makes it easy to unify the units in calculations of time and/or remaining amount. As such, sets of information that are easily acquired and easily unified in terms of the units can be used for various calculations.
  • the yarn processing facility of the first or second aspect is arranged such that the information management unit acquires, by a calculation using at least the initial amount information, the unwinding unit amount information, and the unwinding start time information, at least one of: predicted unwinding end time information regarding a predicted unwinding end time at which unwinding of a yarn from a yarn supply package ends; remaining time information regarding remaining time in which unwinding of a yarn from a yarn supply package is possible at a given reference time; and remaining amount information regarding a remaining amount of a yarn in a yarn supply package at the reference time.
  • a time unwinding end time
  • Such information that is predicted and/or estimated can be used for managing various operations performed until the end of the unwinding of the yarn from the yarn supply package (e.g., preparation of a schedule of replacement of the yarn supply package).
  • the yarn processing facility of the third aspect is arranged such that, based on the remaining time information regarding all yarn supply packages attached to a predetermined yarn supply package retaining portion among the at least one yarn supply package retaining portion, the information management unit acquires information of a predicted original yarn disappearance time at which the all yarn supply packages attached to the predetermined yarn supply package retaining portion become empty.
  • the yarn processing facility of the fourth aspect further includes a yarn supply package conveyance device which is configured to convey a new yarn supply package to the yarn supplying unit and to perform yarn supply package replacement of replacing an empty yarn supply package from which a yarn is fully unwound with the new yarn supply package, the information management unit managing operation of the yarn supply package conveyance device so that the yarn supply package replacement at the predetermined yarn supply package retaining portion is finished before the predicted original yarn disappearance time regarding the predetermined yarn supply package retaining portion comes.
  • a yarn supply package conveyance device which is configured to convey a new yarn supply package to the yarn supplying unit and to perform yarn supply package replacement of replacing an empty yarn supply package from which a yarn is fully unwound with the new yarn supply package, the information management unit managing operation of the yarn supply package conveyance device so that the yarn supply package replacement at the predetermined yarn supply package retaining portion is finished before the predicted original yarn disappearance time regarding the predetermined yarn supply package retaining portion comes.
  • This aspect of the invention makes it possible to prevent the shortage of yarn supply packages attached to a predetermined yarn supply package retaining portion.
  • the yarn processing facility of the fifth aspect is arranged such that the yarn supplying unit includes a plurality of yarn supply package retaining portions as the at least one yarn supply package retaining portion, the yarn supply package conveyance device is capable of performing the yarn supply package replacement for the plurality of yarn supply package retaining portions, and the information management unit managing operation of the yarn supply package conveyance device so that the yarn supply package replacement at each of the plurality of yarn supply package retaining portions is finished before the predicted original yarn disappearance time regarding each of the plurality of yarn supply package retaining portions comes.
  • the yarn processing facility of the fourth aspect further includes: a first output unit which is capable of outputting information; and a first output controller which is configured to control the first output unit, at a replacement notification time that is earlier than the predicted original yarn disappearance time by a predetermined period of time, the first output controller causing the first output unit to output information that prompts an operator to replace a yarn supply package at the predetermined yarn supply package retaining portion.
  • the first output controller may be included in the information management unit or may be provided to be independent from the information management unit.
  • the yarn processing facility of any one of the third to seventh aspects further includes: a connection information acquisition unit which is capable of acquiring information regarding whether a terminal portion of a yarn in a predetermined yarn supply package is connected to a start end portion of a yarn in a reserve yarn supply package from which the yarn is to be unwound next to the predetermined yarn supply package; a second output unit which is capable of outputting information; and a second output controller which is configured to control the second output unit, based on information acquired by the connection information acquisition unit, the second output controller causing the second output unit to output information by which connection of the start end portion with the terminal portion is prompted, when the start end portion is not connected to the terminal portion and the remaining time regarding the predetermined yarn supply package is decreased to a predetermined period of time or less.
  • the first output unit and the second output unit may be identical with each other or different from each other.
  • the first output controller and the second output controller may be identical with each other or different from each other.
  • the second output controller may be included in the information management unit or may be provided to be independent from the information management unit.
  • the yarn processing facility of any one of the third to eighth aspects is arranged such that the information management unit is capable of acquiring: information of a winding start time at which winding of a yarn onto a predetermined winding bobbins starts; and information regarding at least one of a planned winding end time at which the winding of the yarn onto the predetermined winding bobbin ends, a planned wound amount of the yarn wound onto the predetermined winding bobbin, and a planned winding time during which the yarn is wound onto the predetermined winding bobbin, and the information management unit (110) predicts that a yarn connecting portion formed by connection of the start end portion with the terminal portion is to be mixed into a predetermined wound package formed by winding the yarn onto the predetermined winding bobbin, when the predicted unwinding end time exists between the winding start time and the planned winding end time, when the remaining amount regarding a yarn supply package from which a yarn is being unwound at the winding start time is smaller than the planned wound amount, or
  • This prediction result acquirable by the aspect of the invention can be used for managing the operations of the facility related to the formation of the wound package. For example, it is possible to control the operation of the winding unit so that the mixture of a yarn connecting portion into a wound package yarn connecting portion is avoided. Furthermore, it is possible to estimate a location where a yarn connecting portion is mixed in a wound package.
  • the yarn processing facility of the ninth aspect is arranged such that the information management unit manages a timing to end a winding process of winding the yarn onto the predetermined winding bobbin, in accordance with a timing at which it is predicted that the yarn connecting portion is to be mixed into the predetermined wound package.
  • the aspect of the invention makes it possible to avoid the mixture of the yarn connecting portion into the wound package.
  • the yarn connecting portion can be easily removed from the wound package. The qualities of the wound packages are therefore uniformized.
  • the yarn processing facility of any one of the third to tenth aspects is arranged such that, based on the remaining amount information, the information management unit is able to acquire yarn layer information indicating to which part of a yarn layer of a yarn supply package suppling the yarn to the predetermined winding bobbin the yarn wound onto the predetermined winding bobbin belonged, at the reference time.
  • the aspect of the invention makes it possible to associate information of the yarn in the wound package with yarn layer information of the yarn included in the yarn supply package, by utilizing the remaining amount information. Such information is useful for, for example, quality management of wound packages.
  • a yarn processing facility 100 of the present embodiment will be outlined with reference to a schematic plan view in FIG. 1 and a block diagram in FIG. 2 .
  • the yarn processing facility 100 includes false-twist texturing machines 1 (yarn processors of the present invention), a management device 101, a creel robot 102 (yarn supply package conveyance device of the present invention), and a wound package conveyance device 103.
  • the false-twist texturing machines 1 are aligned along a predetermined frame longitudinal direction, for example. Each false-twist texturing machine 1 can perform false twisting of a yarn Y (see, e.g., FIG.
  • each false-twist texturing machine 1 is configured to form a wound package Pw by processing a yarn Y supplied from a yarn supplying unit 2 by a processing unit 3 and winding the yarn Y onto a winding bobbin Bw attached to a winding unit 4.
  • Each false-twist texturing machine 1 is controlled by a machine controller 5 that is a computer device mounted on each false-twist texturing machine 1.
  • the management device 101 is a host computer used for integrally controlling information (detailed later) acquired by the machine controllers 5.
  • the management device 101 includes a management input unit 101a (e.g., a keyboard), a management output unit 101b (e.g., a display), and a management storage unit 101c (e.g., a hard disk).
  • the management output unit 101b may include an unillustrated printer.
  • a combination of the management device 101 and the machine controllers 5 is an information management unit 110 of the present embodiment.
  • the information management unit 110 is electrically connected to a creel controller 102a of the creel robot 102.
  • the information management unit 110 is electrically connected to an unillustrated controller of the wound package conveyance device 103. The information handled by the information management unit 110 will be detailed later.
  • the creel robot 102 is arranged to be able to convey a yarn supply package Ps attached to the yarn supplying unit 2 (i.e., a package formed by winding a yarn Y onto a yarn supplying bobbin Bs).
  • the creel robot 102 may be arranged to convey plural yarn supply packages Ps at once.
  • the creel robot 102 is arranged to be movable in a factory in which the false-twist texturing machines 1 are provided.
  • the creel robot 102 is arranged to be able to perform reciprocal movement between an unillustrated yarn supply package stocker in which a yarn supply package Ps is stored and each false-twist texturing machine 1.
  • the creel robot 102 is arranged so that a yarn supply package Ps stored in the yarn supply package stocker can be mounted on the robot by an operator, for example.
  • the creel robot 102 may be arranged to be able to acquire a yarn supply package Ps from the yarn supply package stocker without needing human workforce.
  • the creel robot 102 is arranged to be able to attach a yarn supply package Ps to the yarn supplying unit 2 of each false-twist texturing machine 1 and to detach the yarn supply package Ps therefrom.
  • the creel robot 102 is arranged to be able to replace a yarn supply package Ps at the yarn supplying unit 2.
  • the creel controller 102a controlling the creel robot 102 is electrically connected to the management device 101 (see FIG. 2 ).
  • the creel controller 102a receives a command signal from the information management unit 110 and controls the creel robot 102 in accordance with the command signal.
  • the wound package conveyance device 103 is arranged to collect a wound package Pw formed at the winding unit 4 of each false-twist texturing machine 1.
  • the wound package conveyance device 103 may be arranged to convey plural wound packages Pw at once.
  • the wound package conveyance device 103 is arranged to convey a formed wound package Pw to, for example, an unillustrated discharge port.
  • a controller (not illustrated) controlling the wound package conveyance device 103 is electrically connected to the management device 101.
  • the wound package conveyance device 103 receives a command signal from the information management unit 110 and collects a formed wound package Pw in accordance with the command signal.
  • FIG. 3 is a profile of the false-twist texturing machine 1.
  • FIG. 4 is a schematic diagram of the false-twist texturing machine 1, expanded along paths of yarns Y (yarn paths).
  • a direction vertical to the sheet of FIG. 3 is defined as the above-described frame longitudinal direction, and a left-right direction in the sheet is defined as a frame width direction.
  • a direction orthogonal to the frame longitudinal direction and the frame width direction is defined as the up-down direction (vertical direction) in which the gravity acts.
  • a direction in which a yarn Y runs will be referred to as a yarn running direction.
  • the false-twist texturing machine 1 includes a yarn supplying unit 2 for supplying yarns Y, a processing unit 3 which performs processing (false twisting) of the yarns Y supplied from the supplying unit 2, a winding unit 4 which winds the yarns Y processed by the processing unit 3 onto winding bobbins Bw, and a machine controller 5.
  • the yarn supplying unit 2 includes a creel stand 6 retaining yarn supply packages Ps, and supplies the yarns Y to the processing unit 3.
  • the processing unit 3 is arranged to unwind yarns Y from the yarn supplying unit 2 and process the yarns Y.
  • the following members are placed in this order from the upstream in a yarn running direction: first feed rollers 11; twist-stopping guides 12; first heaters 13; coolers 14; false-twisting devices 15; second feed rollers 16; second heaters 17; and third feed rollers 18.
  • Each of these elements of the processing unit 3 is provided for, for example, each of later-described spindles 9 (see FIG. 4 ).
  • the winding unit 4 includes a plurality of winding devices 19.
  • Each winding device 19 winds the yarn Y for which the false winding has been performed at the processing unit 3 onto the winding bobbin Bw and forms a wound package Pw.
  • the winding unit 4 is provided with automatic doffers 10 that correspond to the respective winding devices 19 and are configured to replace formed wound packages Pw with empty winding bobbins Bw.
  • the machine controller 5 is configured to control the yarn supplying unit 2, the processing unit 3, and the winding unit 4.
  • the machine controller 5 is, for example, a typical computer device.
  • the machine controller 5 includes a machine input unit 5a, a machine output unit 5b, and a machine storage unit 5c.
  • the machine input unit 5a is, for example, an unillustrated touch panel and/or keyboard, and is arranged to be operable by an operator.
  • the machine output unit 5b includes, for example, an unillustrated display and is arranged to be able to output information.
  • the machine output unit 5b may include an unillustrated printer.
  • the machine storage unit 5c is arranged to store sets of information used for controlling the yarn supplying unit 2, the processing unit 3, and the winding unit 4.
  • the machine controller 5 controls the yarn supplying unit 2, the processing unit 3, and the winding unit 4.
  • the machine controller 5 may indirectly control the yarn supplying unit 2, the processing unit 3, and the winding unit 4 through unillustrated controllers that are configured to control these members.
  • the machine controller 5 is electrically connected to the management device 101 that is a host computer.
  • the management device 101 is able to perform later-described determinations and/or calculations by utilizing the information acquired by the machine controller 5.
  • the false-twist texturing machine 1 includes a main frame 7 and a winding base 8 that are spaced apart from each other in the frame width direction.
  • the main frame 7 and the winding base 8 are substantially identical in length in the frame longitudinal direction.
  • the main frame 7 and the winding base 8 oppose each other in the frame width direction.
  • the false-twist texturing machine 1 includes units which are termed spans each of which includes a pair of the main frame 7 and the winding base 8. In one span, each device is placed so that the yarns Y running while being aligned in the frame longitudinal direction can be false-twisted at the same time.
  • the spans are placed in a left-right symmetrical manner to the sheet, with a center line C of the frame width direction of the main frame 7 being set as a symmetry axis (main frame 7 is shared between the left span and the right span).
  • the spans are aligned in the frame longitudinal direction.
  • the false-twist texturing machine 1 includes spindles 9 (see FIG. 4 ), the number of which is identical with the number of wound packages Pw that can be formed simultaneously. Roughly speaking, the spindles 9 are aligned along the frame longitudinal direction.
  • the inclusion relation is as follows: one false-twist texturing machine 1 includes plural spans, and each of the spans includes plural spindles 9.
  • the creel stand 6 of the yarn supplying unit 2 includes yarn supply package retaining portions 20 (see FIG. 4 ) which are provided to correspond to the respective spindles 9.
  • Each yarn supply package retaining portion 20 is arranged so that two yarn supply packages Ps are attachable thereto and detachable therefrom.
  • the yarn supply package retaining portion 20 has two package attachment units 21.
  • one of the two package attachment units 21 is termed a first attachment unit 22, and the other one of the units is termed a second attachment unit 23.
  • Each of the first attachment unit 22 and the second attachment unit 23 is arranged so that one yarn supply package Ps is attachable thereto and detachable therefrom.
  • the attachment and detachment of a yarn supply package Ps to and from the package attachment unit 21 is performed by the above-described creel robot 102.
  • Each yarn supply package retaining portion 20 of the yarn supplying unit 2 is arranged to be able to uninterruptedly supply the yarn Y, in a manner described below.
  • a first yarn supply package PsA (given yarn supply package of the present invention) which is one of yarn supply packages Ps is attached to the first attachment unit 22.
  • a second yarn supply package PsB (another yarn supply package of the present invention) different from the first yarn supply package PsA is attached to the second attachment unit 23.
  • a yarn Y is unwound from the first yarn supply package PsA.
  • the terminal portion of the yarn Y in the first yarn supply package PsA is tied (connected) to the start end portion of the yarn Y in the second yarn supply package PsB.
  • a node K (yarn connecting portion)is formed between the two yarns Y.
  • the node K is pulled toward the downstream side in the yarn running direction (i.e., toward the winding device 19 side), with the result that the yarn Y is unwound from the second yarn supply package PsB.
  • the yarn supply package Ps from which the yarn Y is supplied is switched (yarn supply package switching).
  • the yarn Y is therefore uninterruptedly supplied.
  • the yarn supply package Ps (yarn supplying bobbin Bs) having become empty is replaced with a new yarn supply package Ps by the creel robot 102.
  • a yarn detection sensor 24 is provided on the downstream side in the yarn running direction of the yarn supply package retaining portions 20, a yarn detection sensor 24 is provided.
  • the yarn detection sensor 24 is arranged to be able to detect which one of the attachment units, the first attachment unit 22 or the second attachment unit 23, is supplying the yarn Y.
  • the yarn detection sensor 24 includes a first detection unit 25 and a second detection unit 26.
  • the first detection unit 25 is arranged to be able to detect whether the yarn Y is being supplied from the first attachment unit 22.
  • the second detection unit 26 is arranged to be able to detect whether the yarn Y is being supplied from the second attachment unit 23.
  • Each of the first detection unit 25 and the second detection unit 26 is, for example, an optical sensor configured to optically detect the yarn Y.
  • each of the first detection unit 25 and the second detection unit 26 is a contact sensor, for example.
  • processing unit 3 The structure of the processing unit 3 will be described also with reference to FIG. 3 and FIG. 4 . The following will describe a part of the processing unit 3, which corresponds to one spindle 9.
  • the first feed roller 11 is arranged to unwind the yarn Y from the yarn supply package Ps attached to the yarn supplying unit 2 and supply the yarn Y to the first heater 13.
  • the first feed roller 11 is provided upstream of the twist-stopping guide 12 in the yarn running direction.
  • the conveyance speed of the first feed roller 11 conveying the yarn Y is substantially identical with the unwinding speed V (see FIG. 4 ) at which the yarn Y is unwound from the yarn supply package Ps.
  • the twist-stopping guide 12 is provided to prevent twist of the yarn Y formed by the false-twisting device 15 from being propagated to the upstream in the yarn running direction of the twist-stopping guide 12.
  • the twist-stopping guide 12 is placed downstream of the first feed roller 11 in the yarn running direction and upstream of the first heater 13 in the yarn running direction.
  • the first heater 13 is configured to heat the yarn Y supplied from the first feed roller 11.
  • the first heater 13 is placed downstream of the twist-stopping guide 12 in the yarn running direction and upstream of the cooler 14 in the yarn running direction.
  • the first heater 13 of the present embodiment is arranged to heat a single yarn Y.
  • the disclosure, however, is not limited to this arrangement.
  • the first heater 13 may be able to simultaneously heat plural yarns Y.
  • the cooler 14 is configured to cool the yarn Y heated by the first heater 13.
  • the cooler 14 is placed downstream of the first heater 13 in the yarn running direction and upstream of the false-twisting device 15 in the yarn running direction.
  • the cooler 14 of the present embodiment is arranged to cool a single yarn Y.
  • the disclosure, however, is not limited to this arrangement.
  • the cooler 14 may be able to simultaneously cool plural yarns Y.
  • the false-twisting device 15 is arranged to twist the yarn Y.
  • the false-twisting device 15 is, for example, a so-called disc-friction false-twisting device, but the disclosure is not limited to this arrangement.
  • the false-twisting device 15 is placed downstream of the cooler 14 in the yarn running direction and upstream of the second feed roller 16 in the yarn running direction.
  • the second feed roller 16 is arranged to feed the yarn Y processed at the false-twisting device 15 to the second heater 17.
  • the conveyance speed of conveying the yarn Y by the second feed rollers 16 is higher than the conveyance speed of conveying the yarn Y by the first feed roller 11.
  • the yarn Y is therefore drawn between the first feed roller feed roller 11 and the second feed roller 16.
  • the second heater 17 is configured to heat the yarn Y supplied from the second feed roller 16.
  • the second heater 17 extends along the vertical direction.
  • the second heater 17 of the present embodiment is arranged to heat a single yarn Y.
  • the disclosure, however, is not limited to this arrangement.
  • the second heater 17 may be able to simultaneously heat plural yarns Y.
  • the third feed roller 18 is arranged to feed the yarn Y heated by the second heater 17 to the winding device 19.
  • the conveyance speed of conveying the yarn Y by the third feed roller 18 is lower than the conveyance speed of conveying the yarn Y by the second feed roller 16.
  • the yarn Y is therefore relaxed between the second feed roller 16 and the third feed roller 18.
  • the yarn Y which has been drawn between the first feed roller 11 and the second feed roller 16 is twisted at the false-twisting device 15.
  • the twist formed by the false-twisting device 15 propagates to the twist-stopping guide 12 but does not propagate to the upstream of the twist-stopping guide 12 in the yarn running direction.
  • the yarn Y which is twisted and drawn is heated at the first heater 13 and thermally set. After that, the yarn Y is cooled at the cooler 14.
  • the yarn Y is untwisted at the downstream of the false-twisting device 15. However, each filament is maintained to be wavy in shape on account of the thermal setting described above.
  • the yarn Y false-twisted by the false-twisting device 15 is thermally set by the second heater 17 while being relaxed between the second feed roller 16 and the third feed roller 18, and then the yarn Y is guided to the downstream side in the yarn running direction.
  • the yarn Y sent from the third feed roller 18 is wound onto the winding bobbin Bw by the winding device 19. As a result, the wound package Pw is formed.
  • the winding unit 4 includes the winding devices 19 each of which is configured to wind the yarn Y onto the winding bobbin Bw and the automatic doffers 10 (see FIG. 3 ) which are provided to correspond to the respective winding devices 19.
  • One winding device 19 belongs to one spindle 9 (see FIG. 4 ).
  • Each winding device 19 includes, for example, a fulcrum guide 31, a traverse unit 32, a cradle 33, and a winding roller 34.
  • the fulcrum guide 31 is a guide which is a fulcrum when the yarn Y is traversed.
  • the traverse unit 32 can traverse the yarn Y by a traverse guide 35 which is attached to an endless belt driven in a reciprocating manner by a motor.
  • the cradle 33 can support the winding bobbin Bw (wound package Pw) to be rotatable.
  • the winding roller 34 is configured to rotate the wound package Pw and apply contact pressure to the surface of the wound package Pw.
  • the winding roller 34 is, for example, rotationally driven by an unillustrated motor while being in contact with the surface of the wound package Pw.
  • the wound package Pw is rotationally driven by the friction force and the shape of the wound package Pw is adjusted by the contact pressure applied to the surface of the wound package Pw.
  • the wound package Pw may be directly rotated by an unillustrated motor.
  • the automatic doffer 10 is configured to detach the wound package Pw from the winding device 19 and attach an empty winding bobbin Bw to the winding device 19. To put it differently, the automatic doffer 10 is able to replace a wound package Pw having been formed with an empty winding bobbin Bw at the winding unit 4.
  • the automatic doffer 10 is provided with unillustrated cutter which is able to cut the yarn Y in the vicinity of the wound package Pw. As the running yarn Y is cut by the cutter, the formation of the wound package Pw is finished. After the cutting of the yarn by the cutter, the yarn Y is kept supplied to the winding device 19 side.
  • the automatic doffer 10 includes an unillustrated suction which is able to suck, capture, and retain the running yarn Y supplied to the winding device 19, in a period from the finish of the formation of the wound package Pw to the start of the winding of the yarn Y onto the next winding bobbin Bw. Before the yarn Y is threaded to the winding bobbin Bw to which the yarn Y is to be wound next, a part of the yarn Y sucked by the suction is sucked and removed.
  • the automatic doffer 10 further includes a stocker 10a which is arranged to be able to temporarily store the wound package Pw detached from the corresponding winding device 19.
  • the stocker 10a faces a space formed between the creel stand 6 and the winding base 8, for example.
  • the wound package Pw stored in the stocker 10a is collected by the above-described wound package conveyance device 103.
  • the structure of the automatic doffer 10, etc. for example, see Japanese Laid-Open Patent Publication No. H6-212521 .
  • the yarn Y which is sent from the third feed roller 18 described above is wound onto the winding bobbin Bw by each winding device 19, and the wound package Pw is formed (winding process).
  • the cutter of the automatic doffer 10 cuts the yarn Y
  • the winding process of winding the yarn Y onto the winding bobbin Bw is finished.
  • the yarn Y supplied to the winding device 19 is sucked and retained by the suction, and the wound package Pw is detached from the cradle 33 by the automatic doffer 10.
  • the automatic doffer 10 attaches a new winding bobbin Bw to the cradle 33.
  • the wound package Pw (winding bobbin Bw) is replaced with a new winding bobbin Bw by the automatic doffer 10 (winding bobbin replacement). Thereafter, it becomes possible to start the winding of the yarn Y onto the new winding bobbin Bw.
  • the inventors of the subject application conceived of the idea described below, in order to significantly improve production management as compared to known production management.
  • the inventors of the subject application conceived of providing a means for knowing a time (remaining time) in which the yarn Y can be supplied from the yarn supply package Ps and/or a remaining amount of the yarn Y (yarn remaining amount) after part of the yarn Y is unwound from the yarn supply package Ps, at a desired timing.
  • a time recovery time
  • a remaining amount of the yarn Y main amount of the yarn Y (yarn remaining amount) after part of the yarn Y is unwound from the yarn supply package Ps, at a desired timing.
  • the information management unit 110 acquires later-described information in order to correctly acquire information regarding the remaining time and/or remaining amount at a desired timing.
  • the information management unit 110 acquires and manages sets of information regarding matters shown in graphs of FIG. 5(a) to FIG. 5(c) . Unless otherwise stated, the following explanation deals with only a predetermined spindle 9.
  • the information management unit 110 acquires information of at least one of matters shown in the graphs of FIG. 5(a) to FIG. 5(c) . (The details will be given later.)
  • FIG. 5(a) is a graph showing the relationship between a remaining amount (vertical axis) of the yarn Y in the yarn supply package Ps (to be more specific, the yarn supply package Ps1, Ps3) attached to the first attachment unit 22 and time (horizontal axis).
  • FIG. 5(b) is a graph showing the relationship between a remaining amount (vertical axis) of the yarn Y in the yarn supply package Ps (to be more specific, the yarn supply package Ps2, Ps4) attached to the second attachment unit 23 and time (horizontal axis).
  • FIG. 5(a) is a graph showing the relationship between a remaining amount (vertical axis) of the yarn Y in the yarn supply package Ps (to be more specific, the yarn supply package Ps2, Ps4) attached to the second attachment unit 23 and time (horizontal axis).
  • 5(c) is a graph showing the relationship between a wound amount (vertical axis) of the yarn Y onto the winding bobbin Bw (to be more specific, the winding bobbin Bw1, Bw2, Bw3, Bw4, Bw5, Bw6) and time (horizontal axis).
  • a time t0 at which the winding of the yarn Y onto the winding bobbin Bw1 starts is the origin.
  • the weight (initial weight) of each yarn supply package Ps in a state in which the yarn Y is not unwound from each yarn supply package Ps at all is always WF for simplicity in explanation.
  • the formation of a yarn supply package Ps may be discontinued before the completion due to a reason such as yarn breakage.
  • the initial weights of the yarn supply packages Ps may not be identical in reality.
  • a yarn supply package Ps1 has been attached to the first attachment unit 22. Meanwhile, a yarn supply package Ps2 has been attached to the second attachment unit 23.
  • the weight of the remaining yarn Y in the yarn supply package Ps1 is W0 (which is smaller than the initial weight WF).
  • the weight of the remaining yarn Y in the yarn supply package Ps2 is identical with the initial weight WF.
  • the terminal portion of the yarn Y in the yarn supply package Ps1 is tied (connected) to the start end portion of the yarn Y in the yarn supply package Ps2, and hence a node K is formed.
  • time ts1 is a winding start time at which the winding of the yarn Y onto the winding bobbin Bw1 starts.
  • the yarn Y is unwound from the yarn supply package Ps1.
  • the remaining amount of the yarn Y (remaining weight) in the yarn supply package Ps1 decreases and the wound amount (wound weight) of the yarn Y wound on the winding bobbin Bw1 increases over time.
  • the time te1 is a winding end time at which the winding of the yarn Y onto the winding bobbin Bw1 ends (i.e., the formation of the wound package Pw1 is finished).
  • the remaining weight of the yarn supply package Ps1 at this stage is W1. Onto the winding bobbin Bw1, only the yarn Y supplied from the yarn supply package Ps1 is wound.
  • the yarn supply package Ps1 attached to the first attachment unit 22 becomes empty. Therefore the time ta1 is an unwinding end time at which the unwinding of the yarn Y from the yarn supply package Ps1 ends.
  • the time tb1 is an unwinding start time at which the unwinding of the yarn Y from the yarn supply package Ps2 starts (i.e., the yarn Y starts to be unwound).
  • the winding process of winding the yarn Y onto the winding bobbin Bw2 i.e., formation of a wound package Pw2 ends.
  • the remaining weight of the yarn supply package Ps2 at this stage is W2.
  • both the yarn Y unwound from the yarn supply package Ps1 and the yarn Y unwound from the yarn supply package Ps2 are wound.
  • the wound package Pw2 includes the node K.
  • a winding process of winding the yarn Y onto a winding bobbin Bw3 starts.
  • the winding process of winding the yarn Y onto the winding bobbin Bw3 i.e., formation of a wound package Pw3 ends, the remaining weight of the yarn supply package Ps2 is W3.
  • the yarn Y unwound from the yarn supply package Ps2 is wound.
  • the creel robot 102 performs detachment of the yarn supply package Ps1 from the first attachment unit 22 and attachment of a yarn supply package Ps3 to the first attachment unit 22 (yarn supply package replacement).
  • the remaining weight of the yarn supply package Ps3 at this stage is WF.
  • the terminal portion of the yarn Y in the yarn supply package Ps2 is tied with the start end portion in the yarn supply package Ps3 and the node K is formed.
  • a tying operation connecting operation
  • the operator may manually perform the tying operation.
  • the operator may perform the tying operation by operating an unillustrated portable tying device, for example.
  • the creel robot 102 may include an automatic tying device (not illustrated) which is capable of performing the tying operation. In this way, the tying operation is not manually performed but performed by the creel robot 102.
  • the matters subsequent to the above will be described.
  • the matters regarding the winding unit 4 are as follows.
  • the yarn Y is wound onto a winding bobbin Bw4 from a time ts4 to a time te4 (i.e., a wound package Pw4 is formed).
  • the yarn Y is wound onto a winding bobbin Bw5 from a time ts5 to a time te5 (i.e., a wound package Pw5 is formed).
  • the yarn Y is wound onto a winding bobbin Bw6 from a time ts6 to a time te6 (i.e., a wound package Pw6 is formed).
  • the matters regarding the yarn supplying unit 2 are as follows.
  • the information management unit 110 acquires initial amount information, unwinding unit amount information, and unwinding start time information of each yarn supply package Ps (a specific method of acquiring each set of information will be described later).
  • the initial amount information is information regarding an initial amount (initial weight or initial length) of the yarn Y in a yarn supply package Ps before the start of unwinding of the yarn Y.
  • the unwinding unit amount information is information regarding an amount of the yarn Y unwound from a yarn supply package Ps per unit time.
  • the unwinding start time information is information of a time (unwinding start time) at which unwinding of the yarn Y from the yarn supply package Ps from which the yarn Y is being unwound starts. These sets of information are used for enabling acquisition of sets of information that are a predicted unwinding end time, a remaining time, a remaining amount, and a predicted original yarn disappearance time (detailed later) used for performing various managements concerning the yarn processing facility 100.
  • the following will describe information required when the information management unit 110 actually acquires the basic information (the initial amount information, the unwinding unit amount information, and the unwinding start time information). To be more specific, the following will describe information regarding a yarn supply package Ps attached to and detached from a package attachment unit 21, information which is input to the machine controller 5 in advance, and information acquired by the machine controller 5 during a winding process. In addition to this, the following will describe information regarding a wound package Pw formed by the winding device 19. The information regarding the wound package Pw is used for performing various types of management related to the yarn processing facility 100, along with the sets of information that are the predicted unwinding end time, the remaining time, the remaining amount, and the predicted original yarn disappearance time.
  • the information management unit 110 manages individual information of a yarn supply package Ps conveyed by the creel robot 102 and information associated with the individual information, in a manner as described below.
  • yarn supply package individual information corresponding to that yarn supply package Ps is input to the creel controller 102a by the operator.
  • the yarn supply package individual information may be input in such a way that the operator reads an ID tag attached to each yarn supply package Ps by using an ID reader (not illustrated) electrically connected to the creel controller 102a.
  • the yarn supply package individual information may be input in such a way that the operator operates the creel controller 102a based on visual information displayed on each yarn supply package Ps.
  • the creel robot 102 may be provided with an unillustrated ID reader, and the creel robot 102 may read the ID tag by using the ID reader.
  • the information recorded in the ID tag or displayed on the yarn supply package Ps includes information of the initial weight of the yarn Y in the yarn supply package Ps (i.e., weight before the yarn Y is unwound from the yarn supply package Ps) and information of the fineness of the yarn Y (i.e., weight per unit length).
  • the information of fineness is included in the initial amount information.
  • the weight of the yarn Y in the yarn supply package Ps will be simply referred to as the weight of the yarn supply package Ps.
  • the creel controller 102a stores the yarn supply package individual information, the information of the initial weight of each yarn supply package Ps, and the information of the fineness of the yarn Y in each yarn supply package Ps, in association with each yarn supply package Ps (see FIG. 7(a) ).
  • the initial weight of each yarn supply package Ps is always WF for the sake of convenience.
  • the unit of the weight of the yarn supply package Ps is kilogram, for example.
  • the fineness of the yarn Y of each yarn supply package Ps is always F.
  • the unit of the fineness is dtex (decitex), for example. Decitex indicates the weight (gram) of a yarn Y per 10000 meters.
  • the information management unit 110 receives information such as the individual information of that yarn supply package Ps (see FIG. 7(a) ) from the creel controller 102a. The information management unit 110 then associates the information such as the individual information of the yarn supply package Ps with the individual information of the package attachment unit 21 to which that yarn supply package Ps is attached.
  • the individual information of the package attachment unit 21 is information indicating (i) to which one of the spindles 9 the package attachment unit 21 to which the yarn supply package Ps is attached belongs and (ii) whether the package attachment unit 21 is the first attachment unit 22 or the second attachment unit 23.
  • the information management unit 110 manages the individual information of the yarn supply package Ps conveyed by the creel robot 102, in association with the operation of the creel robot 102.
  • the machine controller 5 acquires yarn supply package attachment time information regarding a yarn supply package attachment time at which that yarn supply package Ps is attached to the package attachment unit 21.
  • the yarn supply package attachment time is, for example, the above-described time ta2 or tb3.
  • the machine controller 5 stores the yarn supply package individual information, the individual information of the package attachment unit 21, and the yarn supply package attachment time information in association with each yarn supply package Ps (see FIG. 7(a) ).
  • the operator After a new yarn supply package Ps is attached to one of the package attachment units 21, the operator ties the start end portion of the yarn Y in that yarn supply package Ps with the terminal portion of the yarn Y in the yarn supply package Ps attached to the other one of the package attachment units 21, so as to form a node K.
  • the operator then provides the node K at a predetermined position.
  • the operator inputs, to the machine controller 5, information indicating that the node K has been provided at the predetermined position. Based on the input information, the machine controller 5 stores information indicating that the node K has been provided at the predetermined position.
  • the information management unit 110 manages the individual information of a wound package Pw in the following manner, for example.
  • the machine controller 5 stores a time at which a winding bobbin Bw is attached to the winding device 19 as a winding start time at which winding of the yarn Y onto that winding bobbin Bw starts.
  • the machine controller 5 attaches individual information (wound package individual information) to that wound package Pw.
  • the machine controller 5 acquires, for example, information of a machine number (identification number of the false-twist texturing machine 1) and information of identification number of the spindle 9. The machine controller 5 then stores these sets of individual information, the winding start time, and a time when the winding process ends (winding end time) in association with one another. In association with these sets of information, the machine controller 5 may acquire a predetermined management number as wound package individual information and attach the acquired information to each wound package Pw. For example, as shown in FIG. 8(b) , provided that Pw1 to Pw6 described above are management numbers (wound package individual information), each management number is associated with a winding start time and a winding end time.
  • the machine controller 5 prints these sets of information on an unillustrated label.
  • the label can be attached to the winding bobbin Bw by the operator.
  • an unillustrated ID tag may be attached to an empty winding bobbin Bw in advance.
  • wound package individual information may be attached to a winding bobbin Bw in advance before the winding process.
  • the automatic doffer 10 may include an unillustrated ID reader.
  • the ID reader reads an ID tag attached to that winding bobbin Bw and the individual information of that winding bobbin Bw is sent to the machine controller 5.
  • the operator may read an ID tag by using an unillustrated ID reader.
  • the operator may manually input the individual information of the winding bobbin Bw to the machine controller 5.
  • the operator inputs processing conditions to the machine controller 5 in advance.
  • the operator inputs information of the rotation numbers of the first feed roller 11, the second feed roller 16, and the third feed roller 18 to the machine controller 5 (not illustrated).
  • the rotation number of each of these rollers is in proportion to the yarn feeding speed of feeding the yarn Y to the downstream side in the yarn running direction.
  • the rotation number of the first feed roller 11 is in proportion to the unwinding speed V (see FIG. 4 ) of unwinding the yarn Y from the yarn supply package Ps.
  • the unwinding speed V is assumed to be substantially constant in the present embodiment.
  • the unit of the unwinding speed is m/min, for example.
  • the machine controller 5 acquires information of the unwinding speed V based on the information of the rotation number of the first feed roller 11.
  • the operator inputs in advance, to the machine controller 5, information regarding, for example, target weight (planned wound amount) of the yarn Y to be wound onto the winding bobbin Bw.
  • the information input by the operator may include, for example, a time required from the start of the winding process to the end of the winding process (i.e., a planned winding time).
  • the planned winding time may be calculated by the machine controller 5 based on input information such as a planned wound amount.
  • the machine controller 5 assumes that the winding process of winding the yarn Y onto a winding bobbin Bw ends at a planned winding end time which is a time at which the planned winding time elapses from the winding start time of the winding bobbin Bw.
  • the winding unit 4 may include an unillustrated sensor to detect a parameter (e.g., the diameter of the wound package) regarding an amount of the yarn Y wound onto the winding bobbin Bw.
  • the machine controller 5 may determine a timing to end the winding based on a detection result of the sensor.
  • the machine controller 5 determines whether yarn supply package switching, i.e., switching of the yarn supply package Ps supplying the yarn Y has occurred. For example, in FIG. 5(a) and FIG. 5(b) , a matter that the yarn supply package Ps1 becomes empty and the yarn Y is unwound first from the yarn supply package Ps2 is the yarn supply package switching. The machine controller 5 determines that yarn supply package switching has occurred when the state of the yarn detection sensor 24 is switched from (i) a state of detecting the yarn Y by one of the first detection unit 25 and the second detection unit 26 to (ii) a state of detecting the yarn Y by the other one of the first detection unit 25 and the second detection unit 26.
  • the machine controller 5 determines that the yarn supply package switching has occurred, the machine controller 5 acquires and stores the following sets of information shown in the table of FIG. 7(b) .
  • the machine controller 5 stores (i) individual information of the package attachment unit 21 which starts to supply the yarn Y when the yarn supply package switching occurs (either the first attachment unit 22 or the second attachment unit 23) and (ii) a time at which the yarn supply package switching occurs, in association with each other.
  • the time at which the yarn supply package switching occurs is dealt with as an unwinding start time.
  • the machine controller 5 stores (i) individual information of the package attachment unit 21 which finishes the supply of the yarn Y at the yarn supply package switching and (ii) the time at which the yarn supply package switching occurs, in association with each other.
  • the time at which the yarn supply package switching occurs is dealt with as an unwinding end time.
  • the machine controller 5 stores information indicating that the node K has moved from the predetermined position.
  • the machine controller 5 acquires the unwinding start time information by the following steps. For example, when acquiring the unwinding start time information of the yarn supply package Ps3, the machine controller 5 acquires individual information of the package attachment unit 21 (first attachment unit 22) to which the yarn supply package Ps3 is attached and information of the yarn supply package attachment time (time ta2). The machine controller 5 then acquires, as the unwinding start time of the yarn supply package Ps3, information of a time (ta3; see FIG. 5(a) and FIG.
  • the machine controller 5 acquires information of the unwinding end time (time ta4) associated with that unwinding start time, as the unwinding end time of the yarn supply package Ps3.
  • time ta4 information of the unwinding end time associated with that unwinding start time
  • the individual information, the unwinding start time information, and the unwinding end time information of the yarn supply package Ps3 are acquired in association with one another (see FIG. 8(a) ). These sets of information can be acquired not only for the yarn supply package Ps3 but also for each of the yarn supply packages Ps.
  • the information management unit 110 acquires sets of basic information such as initial amount information, unwinding unit amount information, and unwinding start time information for each yarn supply package Ps (see FIG. 8(a) ).
  • the information management unit 110 acquires at least one of remaining amount information, remaining time information, and predicted unwinding end time information by means of a calculation using the initial amount information, the unwinding unit amount information, and the unwinding start time information. These sets of information are used for managing the operation of the yarn processing facility 100 by the information management unit 110 (details of the management will be given later).
  • the remaining amount indicates the remaining amount of the yarn Y in each yarn supply package Ps attached to each package attachment unit 21 at a given reference time.
  • the remaining time indicates the length of time during which the yarn Y can be unwound from each yarn supply package Ps attached to each package attachment unit 21 at a given reference time.
  • the predicted unwinding end time is a predicted time at which the unwinding of the yarn Y from the yarn supply package Ps from which the yarn Y is being unwound ends.
  • the information management unit 110 is therefore able to predict a time at which the unwinding of the yarn Y from each yarn supply package Ps ends, before acquiring the information of an actual unwinding end time of each yarn supply package Ps.
  • the following will describe an example of a method of acquiring remaining amount information of each yarn supply package Ps at a reference time.
  • the current time at which remaining amount information is acquired is dealt with as a reference time.
  • the information management unit 110 determines that the yarn Y is being unwound from a yarn supply package Ps (to be more specific, the yarn supply package Ps2) attached to the second attachment unit 23.
  • the yarn supply package Ps2 is equivalent to a predetermined yarn supply package of the present invention.
  • the information management unit 110 acquires information of initial weight WF, information of fineness F, information of unwinding speed V at which the yarn Y is unwound, and information of an unwinding start time (time tb1), in association with one another.
  • the information of the unwinding speed V regarding the yarn supply package Ps2 is equivalent to unwinding unit amount information of the present invention.
  • the unwinding unit amount information is, for example, stored in the machine controller 5 as an operation setting of the yarn processing facility 100.
  • the remaining weight Wr1 is calculated based on an equation below.
  • A is a coefficient by which the unit of a result of a calculation in curly brackets is converted to kilogram.
  • Wr 1 WF ⁇ A ⁇ V ⁇ F ⁇ t 1 ⁇ tb 1
  • WF is included in the initial amount information of the present invention.
  • V ⁇ F indicates the weight of the yarn Y unwound from the yarn supply package Ps2 per unit time.
  • t1-tb1 is information (cumulative time information) of the total time (cumulative time) of the unwinding of the yarn Y from the yarn supply package Ps2 until the time t1.
  • the information management unit 110 acquires the information (remaining amount information) of the remaining weight of the yarn supply package Ps2 (predetermined yarn supply package) at the time t1 (reference time).
  • the information management unit 110 calculates the remaining amount of the yarn supply package Ps (yarn supply package Ps1) attached to the other package attachment unit 21 (first attachment unit 22), too. At the time t1, an empty yarn supply package Ps1 is still attached to the first attachment unit 22.
  • the unwinding start time (not illustrated) of the yarn supply package Ps1 is a lot earlier than the unwinding start time of the yarn supply package Ps2.
  • the remaining amount of the yarn supply package Ps1 at the time t1 is less than zero when it is calculated in the same manner as the remaining amount of the yarn supply package Ps2.
  • the information management unit 110 sets the remaining amount of the yarn supply package Ps1 at the time t1 to be zero.
  • the remaining weight Wr2 at the time t2 can also be calculated in a similar manner.
  • a new yarn supply package Ps3 has been attached to the first attachment unit 22.
  • unwinding of the yarn Y from the yarn supply package Ps3 has not started.
  • the remaining amount in the yarn supply package Ps3 at the time t2 is WF.
  • the unit of the remaining amount may not be weight.
  • the remaining amount information for example, information of the length of the yarn Y remaining in the yarn supply package Ps may be acquired.
  • information of a percentage of the remaining weight of the yarn Y in the yarn supply package Ps i.e., information of the ratio of the remaining weight to the initial weight may be acquired.
  • the remaining time tr1 can be calculated by the equation below (remaining time information) with the use of Wr1.
  • tr 1 Wr 1 / A ⁇ V ⁇ F
  • tr1 may be calculated by the equation below without using Wr1.
  • tr 1 WF ⁇ A ⁇ V ⁇ F ⁇ t 1 ⁇ tb 1 / A ⁇ V ⁇ F
  • the remaining time in which the yarn Y can be supplied from the yarn supply package Ps1 is zero at the time t1. This is because, as described above, the remaining amount in the yarn supply package Ps1 is zero at the time t1.
  • the information management unit 110 is able to acquire later-described predicted original yarn disappearance time information by using the remaining time information.
  • the remaining time tr2 can be calculated based on the remaining weight Wr2 in the same manner as above.
  • the remaining time tr2 can be calculated by using the initial weight WF (see FIG. 5(b) ).
  • the information management unit 110 is able to estimate a time at which unwinding of the yarn Y from the yarn supply package Ps from which the yarn Y is being unwound at the reference time ends. For example, at the time t1, the yarn Y is being unwound from the yarn supply package Ps2.
  • the information management unit 110 acquires information of a time calculated by adding the remaining time tr1 to the time t1, as predicted unwinding end time information.
  • the information management unit 110 may calculate the predicted unwinding end time based on a predetermined mathematical expression by using basic information.
  • the predicted unwinding end time is substantially identical with an actual unwinding end time (time tb2 described above) regarding the yarn supply package Ps2.
  • the predicted unwinding end time is substantially identical with an actual unwinding start time (ta3 described above) of the yarn supply package Ps3 from which the yarn Y is to be unwound next to the yarn supply package Ps2. Therefore, when the unwinding start time of a given yarn supply package Ps is known, the information management unit 110 is able to estimate (predict) the unwinding start time of the yarn supply package Ps from which the yarn Y is to be unwound next to that package Ps. For example, the information management unit 110 may acquire unwinding start time information of the yarn supply package Ps3 by calculation, based on the initial amount information, the unwinding unit amount information, and the unwinding start time information regarding the yarn supply package Ps2.
  • the winding bobbin Bw2 (see FIG. 5(c) ) is taken as an example.
  • time ts2 the yarn Y is supplied from the yarn supply package Ps1 attached to the first attachment unit 22. Meanwhile, the yarn supply package Ps2 has been attached to the second attachment unit 23.
  • the terminal portion of the yarn Y in the yarn supply package Ps1 is tied (connected) to the start end portion of the yarn Y in the yarn supply package Ps2, and hence a node K is formed.
  • the node K is provided at a predetermined position. Information indicating that the node K is provided at the predetermined position is input to the machine controller 5 in advance by the operator.
  • the information management unit 110 acquires the remaining amount of the yarn Y in the yarn supply package Ps1 (remaining weight W1; see FIG. 5(a) ) at the time ts2 (winding start time) and stores the acquired information in the machine storage unit 5c, for example.
  • the information management unit 110 regularly updates the remaining amount information, the remaining time information, and the predicted unwinding end time information that are described above. Furthermore, the information management unit 110 regularly updates later-described predicted original yarn disappearance time information. Furthermore, the information management unit 110 determines whether the node K is mixed, whether the yarn remaining amount is decreased, and whether the formation of a node has been done. A specific method of updating each set of information and details of each determination will be described later.
  • the yarn supply package switching occurs during the winding process.
  • the state in which the yarn Y is being unwound from the yarn supply package Ps1 is switched to the state in which the yarn Y is being unwound from the yarn supply package Ps2 (see FIG. 5(a) to FIG. 5(c) ).
  • the information management unit 110 determines whether the yarn supply package switching has occurred, based on a detection result of the yarn detection sensor 24.
  • the yarn supply package Ps1 is equivalent to the predetermined yarn supply package of the present invention.
  • the yarn supply package Ps2 is equivalent to a reserve yarn supply package of the present invention.
  • the information management unit 110 acquires the remaining amount information at the winding end time of the yarn supply package Ps2 which supplied the yarn Y until the winding end time. Lastly, the information management unit 110 stores, in the machine storage unit 5c, for example, information of yarn layers supplied from the yarn supply packages Ps1 and Ps2 to the winding bobbin Bw2 (i.e., yarn layer information). Specifically, the yarn layer information may be information of weight. In this example, parts of the yarn Y having the remaining weight of 0 to W1 have been supplied to the winding bobbin Bw2 from the yarn supply package Ps1 (see FIG. 5(a) to FIG. 5(c) ).
  • the information management unit 110 is able to acquire the yarn layer information indicating to which part of the yarn layers of the yarn supply packages Ps suppling the yarn Y to a predetermined winding bobbin Bw the yarn Y wound onto the predetermined winding bobbin Bw belonged.
  • the winding start time and the winding end time are equivalent to the reference time of the present invention.
  • the information management unit 110 regularly updates the total time (cumulative time) of the unwinding of the yarn Y from the yarn supply package Ps from which the yarn Y is being supplied.
  • the time to be updated is equivalent to the reference time of the present invention. From which yarn supply package Ps the yarn Y is being unwound at the reference time (i.e., which yarn supply package Ps is the predetermined yarn supply package) is determined at any time based on the reference time and the unwinding start time information regarding each yarn supply package Ps.
  • the cumulative time is also updated while the automatic doffer 10 is performing the winding bobbin replacement. This is because, as described above, the yarn Y is being supplied to the winding device 19 side (i.e., the yarn Y is being unwound from the yarn supply package Ps) while the winding bobbin replacement is being performed, too.
  • the information management unit 110 calculates (updates) the remaining amount, the remaining time, the predicted unwinding end time, and the predicted original yarn disappearance time, based on the basic information and the updated cumulative time. To be more specific, the information management unit 110 calculates the remaining amount information and the remaining time information regarding both yarn supply packages Ps attached to the two package attachment units 21. The information management unit 110 calculates a predicted unwinding end time of a yarn supply package Ps from which the yarn Y is being unwound.
  • the information management unit 110 calculates a predicted original yarn disappearance time.
  • the predicted original yarn disappearance time is a time at which all of the yarn supply packages Ps attached to a given yarn supply package retaining portion 20 (predetermined yarn supply package retaining portion 20) are estimated to become empty.
  • the predicted original yarn disappearance time is acquired by adding the remaining times regarding the both yarn supply packages Ps to the reference time no matter whether the yarns Y in the two yarn supply packages Ps attached to the yarn supply package retaining portion 20 are tied with each other.
  • the predicted original yarn disappearance time regarding a predetermined yarn supply package retaining portion 20 is acquired based on the remaining time information of all yarn supply packages Ps attached to the predetermined yarn supply package retaining portion 20.
  • the remaining time during which the yarn Y can be unwound from the yarn supply package Ps1 attached to the first attachment unit 22 is zero.
  • the remaining time in which the yarn Y can be unwound from the yarn supply package Ps2 attached to the second attachment unit 23 is tr1 described above.
  • the information management unit 110 is able to acquire information of a time acquired by adding the remaining time tr1 to the time t1, as predicted original yarn disappearance time information predicted at the time t1.
  • the remaining time regarding the yarn supply package Ps3 attached to the first attachment unit 22 is tF.
  • the remaining time regarding the yarn supply package Ps2 attached to the second attachment unit 23 is tr2 as described above.
  • the information management unit 110 is able to acquire information of a time calculated by adding the remaining time tF and the remaining time tr2 to the time t2, as predicted original yarn disappearance time information at the time t2.
  • the information management unit 110 determines whether it is predicted that a node K will be mixed into a wound package Pw formed on a winding bobbin Bw for which a winding process is performed. To be more specific, one of the following three processes is performed. For example, when a predicted unwinding end time exists between a winding start time and a planned winding end time, it is predicted that a node K will be mixed into a wound package Pw.
  • the information management unit 110 determines whether the current time will reach the predicted unwinding end time.
  • the term “reach” indicates that the predicted unwinding end time will come after a predetermined time elapses from the current time. Alternatively, the term “reach” may indicate that the predicted unwinding end time has just come. Alternatively, the information management unit 110 may determine whether the current time reaches the predicted unwinding end time by determining whether the yarn supply package switching has occurred based on a detection result of the above-described yarn detection sensor 24.
  • the information management unit 110 executes, for example, a process described below (mixture avoidance process of avoiding mixture of a node K; hereinafter, this process will be simply referred to as a mixture avoidance process), so as to avoid mixture of the node K into the wound package Pw.
  • the machine controller 5 causes the automatic doffer 10 to cut the yarn Y by using the cutter immediately before a time at which a node K is predicted to reach the winding device 19 (i.e., a timing earlier by a predetermined duration of time than the predicted time).
  • the timing to end the winding process in accordance with the timing at which it is predicted that the node K will be mixed. In this way, the mixture of the node K into the wound package Pw is avoided.
  • the mixture avoidance process is performed for a winding bobbin Bw4
  • the winding process of winding the yarn Y onto the winding bobbin Bw4 ends earlier than usual.
  • the winding end time regarding the winding bobbin Bw4 is earlier than the above-described time te4 (see FIG.
  • the winding start time regarding the next winding bobbin Bw5 (see the time ts5a in FIG. 9 ) is earlier than the above-described ts5 (see FIG. 5(c) ), too.
  • the node K locates at the outermost yarn layer or neighboring layers (i.e., an outer layer portion) in the radial direction of the wound package Pw. It is therefore possible to easily remove the node K mixed into the wound package Pw.
  • a node K may be mixed in the innermost layer or its neighboring yarn layers (i.e., an inner layer portion) in the radial direction of a wound package Pw which is to be formed by winding the yarn Y to the next winding bobbin Bw. In such a case, it is difficult to remove the node K from that wound package Pw.
  • the information management unit 110 may cause the automatic doffer 10 to cut the yarn Y by using the cutter at a time at which it is estimated that the node K reaches the winding device 19 or immediately after that time (i.e., after a predetermined period of time elapses from that time).
  • the formation of that wound package Pw may be terminated.
  • the information management unit 110 determines whether a package replacement instruction time has come.
  • the package replacement instruction time is earlier than a predicted original yarn disappearance time of a yarn supply package retaining portion 20 of a spindle 9 by a predetermined period of time (e.g., first time).
  • the information management unit 110 outputs a command signal to cause the creel robot 102 to perform yarn supply package replacement.
  • the information management unit 110 manages the operation of the creel robot 102 based on information of predicted original yarn disappearance times regarding plural yarn supply package retaining portions 20. To be more specific, the information management unit 110 manages the operation of the creel robot 102 so that yarn supply package replacement is completed at each yarn supply package retaining portion 20 before a predicted original yarn disappearance time of each yarn supply package retaining portion 20 comes.
  • the information management unit 110 generates a schedule for replenishing yarn supply packages Ps, and controls the operation of the creel robot 102 based on the generated schedule.
  • the information management unit 110 determines a package replacement instruction time in consideration of various conditions such as the type and number of yarn supply packages Ps to be replenished, places where the packages are replenished, and the operation route of the creel robot 102. This arrangement makes it possible to perform the yarn supply package replacement at a timing suitable for each yarn supply package retaining portion 20.
  • the information management unit 110 may perform yarn supply package replacement after waiting for a timing suitable for performing the yarn supply package replacement.
  • the package attachment unit 21 is arranged so that the distance between two package attachment units 21 is intentionally narrow in order to downsize the facility, yarn supply packages Ps may interfere with each other when the two yarn supply packages Ps are simultaneously attached to the package attachment units 21.
  • yarn supply packages Ps may interfere with each other when the two yarn supply packages Ps are simultaneously attached to the package attachment units 21.
  • only after one yarn supply package Ps is attached to one of the two package attachment units 21 and a certain amount of the yarn Y is unwound from the one yarn supply package Ps it becomes possible to attach the other yarn supply package Ps to the other one of the two package attachment units 21.
  • the above-described control is performed, it is possible to wait for an instruction of yarn supply package replacement until it becomes possible to attach a new yarn supply package Ps.
  • the tying oversight indicates a state in which, after the operator newly attaches a yarn supply package Ps to the yarn supply package retaining portion 20, the new yarn supply package Ps is left without a tying operation.
  • the determination is done to prompt the operator to perform the tying operation.
  • the information management unit 110 determines whether the remaining time regarding a yarn supply package Ps (predetermined yarn supply package) from which the yarn Y is being unwound in that spindle 9 is not longer than a predetermined period of time (e.g., a second time).
  • a predetermined period of time e.g., a second time.
  • the information management unit 110 is equivalent to a connection information acquisition unit of the present invention.
  • the machine controller 5 is equivalent to a second output controller of the present invention.
  • the machine output unit 5b is equivalent to a second output unit of the present invention.
  • the output of the information may be done by the management output unit 101b of the management device 101.
  • the management device 101 is equivalent to the second output controller of the present invention and the management output unit 101b is equivalent to the second output unit of the present invention.
  • the information management unit 110 correctly and easily acquire the initial amount information, the unwinding unit amount information, an the unwinding start time information.
  • the information management unit 110 By performing a calculation using these sets of information, it is possible to, for example, precisely predict a timing of the end of the unwinding of the yarn Y from the yarn supply package Ps and to regularly estimate the progress of the unwinding of the yarn Y. It is therefore possible to provide a novel yarn processing facility 100 which is able to significantly improve production management. Furthermore, even when the remaining amount of the yarn Y after part of the yarn Y has been unwound from the yarn supply package Ps cannot be directly measured, it is possible to correctly acquire information regarding the management of the yarn processing facility at a desired timing.
  • the information management unit 110 acquires information of the initial weight and fineness of the yarn Y included in each yarn supply package Ps as initial amount information, and acquire information of unwinding speed as unwinding unit amount information. This makes it easy to unify the units in calculations of time and/or remaining amount. As such, sets of information that are easily acquired and easily unified in terms of the units can be used for various calculations.
  • the information management unit 110 is able to predict an unwinding end time and regularly estimate a remaining time and/or a remaining amount. Such information that is predicted and/or estimated can be used for managing various operations performed until the end of the unwinding of the yarn Y from the yarn supply package Ps (e.g., preparation of a schedule of replacement of the yarn supply package Ps).
  • the information management unit 110 Based on remaining time information regarding all yarn supply packages Ps attached to a predetermined yarn supply package retaining portion 20, the information management unit 110 acquires information of a predicted original yarn disappearance time at which all yarn supply packages Ps attached to the predetermined yarn supply package retaining portion 20 become empty. By utilizing the information of the predicted original yarn disappearance time, advanced control regarding operations such as replacement of yarn supply packages Ps or advanced facility operation management is realized.
  • the information management unit 110 manages the operation of the creel robot 102 so that yarn supply package replacement is completed at each yarn supply package retaining portion 20 before a predicted original yarn disappearance time of each yarn supply package retaining portion 20 comes. On this account, in an arrangement in which plural yarn supply package retaining portions 20 are provided, it is possible to prevent the shortage of yarn supply packages Ps at each yarn supply package retaining portion 20.
  • the machine controller 5 causes the machine output unit 5b to output information prompting an operator, etc. to perform the tying operation, based on the information acquired by the information management unit 110. This makes it possible to prevent the operator, etc. from forgetting to perform the tying operation.
  • the information management unit 110 predicts that a node K will be mixed into a predetermined wound package Pw. This prediction result can be used for managing the operations of the facility related to the formation of the wound package Pw. For example, it is possible to control the operation of the winding unit 4 so that the mixture of a node K into a wound package Pw is avoided.
  • the information management unit 110 controls a timing to end the winding process of winding a yarn onto a predetermined winding bobbin Bw in accordance with a timing at which it is predicted that a node K will be mixed into a predetermined wound package Pw. In this way, the mixture of the node K into the wound package Pw is avoided.
  • the yarn connecting portion can be easily removed from the wound package. The qualities of the wound packages Pw are therefore uniformized.
  • the information management unit 110 is able to acquire the yarn layer information indicating to which part of the yarn layers of the yarn supply package Ps suppling the yarn Y to a predetermined winding bobbin Bw the yarn Y wound onto the predetermined winding bobbin Bw belonged. It is therefore possible to associate information of the yarn Y in the wound package Pw with yarn layer information of the yarn Y included in the yarn supply package Ps. Such information is useful for, for example, quality management of wound packages Pw.

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  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Textile Engineering (AREA)
  • Filamentary Materials, Packages, And Safety Devices Therefor (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
EP22150929.2A 2021-01-26 2022-01-11 Garnverarbeitungsanlage Pending EP4032842A1 (de)

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Citations (6)

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Publication number Priority date Publication date Assignee Title
JPH06212521A (ja) 1993-01-13 1994-08-02 Murata Mach Ltd 仮撚機の糸掛方法及び同装置
US20010037545A1 (en) * 1998-10-09 2001-11-08 Manfred Stuttem Method and apparatus for continuously unwinding and processing a yarn
JP2002088605A (ja) 2000-09-07 2002-03-27 Aiki Seisakusho:Kk エア加工機
JP5873105B2 (ja) 2011-07-06 2016-03-01 ビティエッセエッレ インターナショナル ソチエタ ペル アチオーニ 糸供給ボビンの交替を検知するための装置及び方法
US20190177108A1 (en) * 2017-12-08 2019-06-13 Saurer Fibrevision Ltd. Method and system for monitoring drawing of yarn from a bobbin
WO2020127489A1 (en) * 2018-12-21 2020-06-25 Oerlikon Textile Gmbh & Co. Kg A texturing machine and a method for associating spinning end product data with texturing end product data thereon

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3234872U (ja) * 2021-08-05 2021-11-11 五郎 五十嵐 車両に設けたタンデム型ダイヤモンド薄膜太陽電池装置。

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06212521A (ja) 1993-01-13 1994-08-02 Murata Mach Ltd 仮撚機の糸掛方法及び同装置
US20010037545A1 (en) * 1998-10-09 2001-11-08 Manfred Stuttem Method and apparatus for continuously unwinding and processing a yarn
JP2003526584A (ja) 1998-10-09 2003-09-09 バルマーク アクチエンゲゼルシヤフト 糸を連続的に繰出すための方法
JP2002088605A (ja) 2000-09-07 2002-03-27 Aiki Seisakusho:Kk エア加工機
JP5873105B2 (ja) 2011-07-06 2016-03-01 ビティエッセエッレ インターナショナル ソチエタ ペル アチオーニ 糸供給ボビンの交替を検知するための装置及び方法
US20190177108A1 (en) * 2017-12-08 2019-06-13 Saurer Fibrevision Ltd. Method and system for monitoring drawing of yarn from a bobbin
WO2020127489A1 (en) * 2018-12-21 2020-06-25 Oerlikon Textile Gmbh & Co. Kg A texturing machine and a method for associating spinning end product data with texturing end product data thereon

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