CN105383999B - Yarn take-up device - Google Patents
Yarn take-up device Download PDFInfo
- Publication number
- CN105383999B CN105383999B CN201510398222.8A CN201510398222A CN105383999B CN 105383999 B CN105383999 B CN 105383999B CN 201510398222 A CN201510398222 A CN 201510398222A CN 105383999 B CN105383999 B CN 105383999B
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- China
- Prior art keywords
- yarn
- storage
- storage device
- reversion
- take
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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
- B65H51/00—Forwarding filamentary material
- B65H51/20—Devices for temporarily storing filamentary material during forwarding, e.g. for buffer storage
- B65H51/22—Reels or cages, e.g. cylindrical, with storing and forwarding surfaces provided by rollers or bars
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- 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
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- 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
Abstract
A kind of automatic bobbin winder (yarn take-up device) has yarn storage device (19), piecing devices (14), upper yarn pulling unit (18) and control unit.Yarn storage device (19) is rotated by yarn storage roller (61) to wind and temporarily stores yarn (20).The yarn for the yarn feeding bobbin supporting part side that piecing devices (14) will be switched off and the yarn (20) of yarn storage device (19) side connect.Yarn (20) is pulled out from yarn storage device (19) and guides (14) to piecing devices by upper yarn pulling unit (18).Control unit is when guiding the yarn (20) of yarn storage device (19) side to piecing devices (14), the circle number that is, reversion instruction circle number that the direction that calculating keeps yarn storage roller (61) edge opposite with when winding rotates, and the yarn storage roller (61) is controlled so that the reverse coil number of yarn storage roller (61) is as reversion instruction circle number.
Description
Technical field
The present invention relates to the yarn take-up devices for having yarn storage device and piecing devices.Specifically, it is related to carrying out
The control carried out when pulling out yarn from yarn storage device when connector.
Background technique
The yarn unwound from yarn feeding bobbin was temporarily stored in yarn storage device on one side there is known a kind of in the past, on one side from the storage
Yarn feeding device winding yarn and the yarn take-up device for forming package.If yarn take-up device all moves back the yarn of yarn feeding bobbin
Around then supplying new yarn feeding bobbin.Yarn take-up device is in the yarn and yarn storage using the new yarn feeding bobbin of piecing devices connector
The winding of new yarn feeding bobbin is carried out after the yarn of device.Japanese Unexamined Patent Publication 2010-47407 bulletin and International Publication No.
No. 2011/040545 bulletin discloses this yarn take-up device.
Here, in order to carry out the connector based on piecing devices, and by the yarn of the yarn of yarn feeding bobbin side and yarn storage device side
Line is guided to piecing devices.Specifically, above-mentioned yarn is captured by that can generate the yarn guide member for attracting the tubulose of stream.Yarn
Line guide member is guided yarn to piecing devices by rotating in the state of capturing yarn.Or fly to capture by blowing
Yarn and yarn is guided to piecing devices.
A kind of storage by being formed with yarn access in inside is disclosed in Japanese Unexamined Patent Publication 2010-47407 bulletin
Arm rotates and stores the yarn take-up device of the structure of yarn around yarn pond portion.The yarn take-up device has detection yarn defect and its length
The yarn clearer of degree.Yarn take-up device is the case where detecting yarn defect, based on the pulse letter sent from the driving portion of yarn storage device
Number infer yarn defect length.Thereby, it is possible to accurately infer the length of yarn defect.In addition, at International Publication No. 2011/040545
Disclosed in bulletin it is a kind of by make yarn storage roller rotate and the yarn storage roller outer peripheral surface store yarn structure yarn winding
Device.
Here, in order to pull out and be guided to piecing devices by the yarn of yarn storage device side, need to make depositing for the yarn storage device
Storage arm, yarn storage roller etc. are rotated along the direction opposite with when winding.However, in Japanese Unexamined Patent Publication 2010-47407 bulletin and the world
It discloses in No. 2011/040545 bulletin, the reverse coil number about access arm, yarn storage roller when carrying out connector does not carry out in detail
It records on ground.For example, in the case where indicating reversing time, according to speed reversal, being reached to invert access arm or yarn storage roller
The length of time until the speed reversal, the yarn pulled out can generate deviation.Therefore, required in order to have to pull out
The yarn of length, it has to indicate abundant reversing time.In this case, discarded yarn is elongated, also, connector is spent
The time taken is elongated.
In turn, the yarn as No. 2011/040545 bulletin of International Publication No., on the surface for attracting and capturing yarn storage roller
Structure yarn take-up device in, yarn capture failure in the case where, the surface of yarn storage roller is attracted for a long time.It is tied
Fruit be wound in yarn storage roller yarn it is wrapped around one another together.
Summary of the invention
The present invention is completed in view of above actual conditions, it is main be designed to provide one kind can in order to
The reel for yarn of the yarn of appropriate amount is pulled out when yarn being guided to piecing devices and pulling out yarn from yarn storage device from yarn storage device
Winding apparatus.
Project to be solved by this invention is as previously discussed, next to for solving the project means and its effect into
Row explanation.
Viewpoint according to the present invention provides the yarn take-up device of structure below.It is fed that is, the yarn take-up device has
Yarn portion, yarn storage device, package forming portion, piecing devices, yarn storage pulling unit and control unit.Above-mentioned yarn feeder is configured to supply
Yarn.Above-mentioned yarn storage device is wound and is temporarily stored the yarn that above-mentioned yarn feeder is supplied by storage winder rotation.On
It states package forming portion and forms package and pulling out yarn from above-mentioned yarn storage device and being wound in mound bobbins.Above-mentioned connector dress
Set yarn above-mentioned yarn feeder and above-mentioned yarn storage device it is separated when, the yarn for the yarn feeder side that will be switched off and above-mentioned storage
The yarn of yarn feeding device side connects.Above-mentioned yarn storage pulling unit by the yarn of above-mentioned yarn storage device side from the yarn storage device pull out and it is upward
State piecing devices guidance.Above-mentioned control unit is made when guiding the yarn of above-mentioned yarn storage device side to above-mentioned piecing devices
The storage winder is controlled along the reversion that the direction opposite with when winding rotates.Above-mentioned control unit controls in above-mentioned reversion control
The reversion of the storage winder controls, so as to make the reverse coil number of above-mentioned storage winder become make above-mentioned storage winder along with
The circle number reversion instruction circle number that opposite direction rotates when winding.
It, can be accurately by the circle number for indicating to make to store winder reversion as a result, when pulling out yarn from yarn storage device
Control the length of the yarn pulled out from yarn storage device.Therefore, it is able to suppress the length of discarded yarn, and being capable of shortening joint
The time it takes.
In above-mentioned yarn take-up device, preferably above-mentioned control unit calculates in above-mentioned reversion control makes above-mentioned storage
Winder is along the circle number that is, reversion instruction circle number rotated with opposite direction when winding, and above-mentioned reversion instruction circle base is in passing through
The rotation of above-mentioned storage winder turn around and the length of yarn that stores or unwind with filled from above-mentioned yarn storage device to above-mentioned connector
The distance of the yarn path set calculates.
The length of the yarn of (unwinding) is stored by considering to turn around by storage winder rotation as a result, and can be estimated
It has been calculated as starting with reverse coil number needed for yarn storage pulling unit captures yarn ends from reversion.In addition, by considering from above-mentioned storage
Yarn feeding device and can be estimated to guide the yarn of pull-out to piecing devices to the distance of the yarn path of above-mentioned piecing devices
Required reverse coil number.
In above-mentioned yarn take-up device, it is preferably formed into structure below.That is, above-mentioned storage winder is in periphery
Roll around and store the yarn storage roller of yarn.The length for the yarn for storing or unwinding that turns around is revolved by above-mentioned storage winder
It is calculated based on the radius of above-mentioned yarn storage roller or diameter.
Simple calculations is carried out according only to radius or diameter as a result, just can calculate the storage of the every circle rotation of yarn storage roller
It measures (unwinding amount).And back and forth, although infer the winding amount of every circle rotation of package, due to being wrapped with yarn
Winding amount increase and diameter becomes larger, so needing to detect the sensor of roll diameter to calculate the winding amount of every circle rotation
Deng.In this point, due to the diameter of yarn storage roller be it is constant, so different from package, can simply and accurately calculate every circle
Rotate the length of unreeled yarn.
In above-mentioned yarn take-up device, it is preferably formed into structure below.That is, the yarn take-up device has yarn storage
Capture unit, the yarn for attracting above-mentioned yarn storage pulling unit to pull out from above-mentioned yarn storage device, and more leaned on compared to above-mentioned piecing devices
The position capture of the upstream side yarn.Above-mentioned reversion instruction circle number, which is based further on from above-mentioned piecing devices to above-mentioned yarn storage, to be captured
The distance of the yarn path in portion determines.
Thereby, it is possible to more accurately estimate the yarn for that will pull out to reverse coil number needed for piecing devices guidance.
In above-mentioned yarn take-up device, it is preferably formed into structure below.That is, the yarn take-up device has yarn defect
Detection device and cutting portion.Above-mentioned yarn defect detection device detection is wound in the flaw of the yarn of above-mentioned yarn storage device.Above-mentioned cutting
Portion is when above-mentioned yarn defect detection device detects the flaw of yarn in the upstream side cutting continuous strand of the flaw of yarn.Above-mentioned reversion refers to
Show that circle number is based further on the length of yarn defect detected by above-mentioned yarn defect detection device to determine.
Detected yarn defect is all removed as a result, and can accurately estimate in order to by the yarn pulled out to
Reverse coil number needed for piecing devices guidance.In addition, not only in the case where supplying yarn feeding bobbin, the case where detecting yarn defect
Under yarn can also be pulled out to necessary sufficient length.
In above-mentioned yarn take-up device, it is preferably formed into structure below.That is, the yarn take-up device has yarn
Test section, the presence for the yarn that the specified position of detection yarn path goes out.Above-mentioned control unit is in above-mentioned yarn test section upper
In the case where yarn is not detected after stating reversion control, above-mentioned reversion control is carried out again.
As a result, due to being able to detect the failure of the pull-out of yarn, can not call operation personnel and it is automatic again into
The pull-out of row yarn.In addition, in the present invention by can accurately control the length of pulled out yarn, it can be more
Accurately detect the failure of the pull-out of yarn.
In above-mentioned yarn take-up device, preferably above-mentioned yarn defect detection device is played as above-mentioned yarn test section to be made
With.
As a result, since the number of packages for the component that yarn take-up device has can be reduced, so can reduce yarn winding
The manufacturing cost of device.
In above-mentioned yarn take-up device, it is preferably formed into structure below.That is, above-mentioned yarn storage pulling unit is from above-mentioned storage
Yarn feeding device attracts yarn, makes the yarn by being formed in internal attraction access and pulling out the yarn.Match in above-mentioned attraction access
It is equipped with the existing pull-out yarn test section of detection yarn.Above-mentioned control unit detects yarn in above-mentioned pull-out yarn test section
Moment starts the counting of the reverse coil number of above-mentioned yarn storage pulling unit.
As a result, due to the case where capable of detecting the pull-out for having carried out yarn immediately, so making with the pull-out for yarn
The case where yarn storage pulling unit rotates in mutually opposite directions a circle compares, and can further suppress the amount for pulling out yarn.In addition, due to
The pull-out of yarn can be detected rapidly, so the fault of the pull-out of yarn reliably and can be detected early.
In above-mentioned yarn take-up device, be preferably provided with input unit, can input above-mentioned reversion instruction circle number or
Value of the input for the calculating of reversion instruction circle number.
Thereby, it is possible to simply cope with the change of the position of the change of the type of yarn, yarn storage device, piecing devices etc.,
Or change of the shape of yarn storage device etc..In addition, above-mentioned yarn feeder is preferably to support the yarn feeding bobbin that can supply yarn
Yarn feeding bobbin supporting part.
Detailed description of the invention
Fig. 1 is the schematic side for the spooling unit that automatic bobbin winder involved in an embodiment of the invention has
Figure.
Fig. 2 is the signal for the spooling unit that upper yarn pulling unit is blown after winged yarn is captured by upper yarn capture unit soon
Side view.
Fig. 3 is the schematic side for indicating to guide yarn under working and upper yarn the spooling unit to piecing devices
Figure.
Fig. 4 is indicated for guiding the yarn pulled out from yarn storage device to the explanatory diagram of length needed for piecing devices.
Fig. 5 has been expressed as the explanatory diagram of the length needed for carrying out connector and all removing yarn defect contained by yarn.
Fig. 6 is the flow chart for indicating to calculate the processing of reversion instruction circle number.
Fig. 7 is the signal enlarged side view for the spooling unit that automatic bobbin winder involved in variation has.
Specific embodiment
Next, embodiments of the present invention will be described.Firstly, to automatic bobbin winder, (reel for yarn is installed around referring to Fig.1
Set) summary be illustrated.Automatic bobbin winder is formed as the structure for being arranged in parallel with multiple spooling units 2.In addition, the automatic network
The body managing device that the figure that yarn equipment is ready for use on centralized management spooling unit 2 omits with have compressed air source and negative pressure source
Scheme the bellows omited.
As shown in Figure 1, spooling unit 2 mainly has control unit 50, yarn feeding bobbin supporting part (yarn feeder) 7 and winder
(package forming portion) 8.The yarn that the spooling unit 2 is configured to the yarn feeding bobbin 21 that unwinding is supported on yarn feeding bobbin supporting part 7 is (thin
Yarn) 20 and make its wraparound be wrapped 30.In addition, in the following description, by the upstream side when the moving direction of yarn is observed with
And downstream side is referred to as " upstream side ", " downstream side ".
The software sharings such as the hardware such as CPU, ROM, RAM that control unit 50 is omited by figure and the control program for being stored in ROM.And
And each section of spooling unit 2 is controlled by the cooperation of above-mentioned hardware and software.In addition, the control that each spooling unit 2 has
Portion 50 processed can be communicated with above-mentioned body managing device.Multiple spooling units 2 that thereby, it is possible to have to automatic bobbin winder
Movement managed concentratedly in body managing device.
Automatic bobbin winder has the input unit 51 for inputting winding condition etc. to control unit 50.Input unit 51 can be set
In each each spooling unit 2, also can be set in above-mentioned body managing device.
Yarn feeding bobbin 21 is remained generally upstanding state by yarn feeding bobbin supporting part 7.In addition, the yarn feeding bobbin supporting part 7
Emptying yarn feeding bobbin 21 can be discharged.In addition, the face side in spooling unit 2 is configured with yarn library formula bobbin supply apparatus
26.The bobbin supply apparatus 26 has rotary yarn storage capacity device 27.The yarn storage capacity device 27 is able to maintain the yarn feeding cylinder of multiple preparations
Pipe 21.Bobbin supply apparatus 26 is rotated by intermittently driving yarn storage capacity device 27, can be supplied to yarn feeding bobbin supporting part 7 new
Yarn feeding bobbin 21.
Winder 8 has: reel cage 23, mound bobbins 22 can be installed by consisting of；With traversing roller 24, it is used to make yarn
20 traversing of line and drive mound bobbins 22.
Traversing roller 24 and mound bobbins 22 are arranged opposite.Traversing roller 24 is driven to rotate by the motor omited using figure,
To the 30 driven rotations of mound bobbins 22 and package.Thereby, it is possible to will be stored in yarn volume 20 of aftermentioned yarn storage device 19
It is around in package 30.
In addition, the outer peripheral surface in traversing roller 24 is formed with the traversing slot of figure slightly, and yarn can be made using the traversing slot
20 with defined amplitude traversing.It, can be by being wound in winch spool on one side the traversing yarn 20 while by above structure
The package 30 of pipe 22 and formation regulation shape.
In spooling unit 2, in the yarn movement path between yarn feeding bobbin supporting part 7 and winder 8, according to from yarn feeding
Portion 11, canopy column are blown afloat configured with apparatus for unwinding 10, yarn under working towards the sequence of 8 side of winder in 7 side of bobbin supporting part
Power device 12, upper yarn capture unit (yarn storage capture unit) 13, piecing devices 14, yarn trap 15, cutter (cutting portion) 16, yarn prison
View apparatus (yarn defect detection device) 17, upper yarn pulling unit (yarn storage pulling unit) 18 and yarn storage device 19.
Apparatus for unwinding 10 makes movable member 10a swing and be formed in relative to the yarn 20 unwound from yarn feeding bobbin 21
The air ring on the top of yarn feeding bobbin 21 is contacted.The size of air ring is suitably controlled as a result, assists the unwinding of yarn 20.
Yarn under working blows afloat the getter device that portion 11 is arranged between yarn feeding bobbin supporting part 7 and piecing devices 14, is connecing
When head, the yarn under working of 21 side of yarn feeding bobbin is sent out towards 14 side of piecing devices.
Canopy column tensioner 12 applies defined tension to mobile yarn 20.The canopy column tensioner 12 of present embodiment
For the canopy column for configuring movable comb teeth relative to fixed comb teeth.The comb teeth of drawer at movable side can be each engagement with comb teeth
The mode of state or discrete state is rotated by rotary solenoid.In addition it is also possible to instead of canopy column tensioner 12
Tension applying apparatus configures such as disc type tension applying apparatus.
Upper yarn capture unit 13 is configured between piecing devices 14 and yarn feeding bobbin supporting part 7.Yarn capture unit 13 on this
The negative pressure source omited with figure is connect, and attraction air stream can be generated in connector.In addition, in connector spooling unit 2 it is each
The processing that part is carried out carries out aftermentioned.
Yarn trap 15 is configured between piecing devices 14 and yarn storage device 19.Portion of the front end of the yarn trap 15 as tubular
Part and formed, and be disposed proximate to the movement routine of yarn 20.Yarn trap 15 is connect with the negative pressure source that figure omits, and by preceding
End, which generates, attracts air stream, and removing can be attracted to be attached to the foreign matters such as the mobile flyings of yarn 20.
Yarn monitoring device 17 is configured to the yarn by monitoring yarn 20 using optical profile type or static capacity type sensor
Line thickness detects the yarns defect such as slubbing.If yarn monitoring device 17 detects yarn defect, is exported to control unit 50 and indicate the yarn defect
Cutting remove cut-off signal.Further, since there is yarn defect a degree of length yarn defect specifically is being not detected
At the time of, above-mentioned cut-off signal is exported to control unit 50.It is configured with cutter 16 near yarn monitoring device 17, uses
According to cut-off signal cutting continuous strand 20 immediately inputted via control unit 50.In addition, what yarn monitoring device 17 will test
The length of yarn defect is exported to control unit 50.
Piecing devices 14 in yarn monitoring device 17 detect yarn defect and when using 16 cutting continuous strand 20 of cutter, cutting from
When the yarn for the yarn 20 that yarn feeding bobbin 21 is unwound or when replacement yarn feeding bobbin 21 etc., to the yarn feeding cylinder for becoming off-state
The yarn under working of 21 side of pipe and the upper yarn of 19 side of yarn storage device carry out connector.As piecing devices 14, it is able to use and applies pressure
Device, the mechanical device of the fluid of contracting air etc..
Upper yarn pulling unit 18 is arranged in the getter device of the tight upstream of yarn storage device 19, and can utilize compressed air
The upper yarn of 19 side of yarn storage device is sent out towards yarn guiding tube 36.
Yarn storage device 19 temporarily stores the yarn 20 unwound from yarn feeding bobbin 21.As shown in Figure 1, yarn storage device 19 mainly has
Standby yarn storage roller (storage winder) 61, yarn storage roller drive motor 62 and endless member 63.
Yarn storage roller 61 is formed as substantially cylindric component, from feeding and being pivoted about with central axis
Yarn bobbin 21 pulls out yarn 20, and winds in its outer peripheral surface and store yarn 20.Yarn storage roller drive motor 62 is can to control step
Into the motor of the rotation amount of motor or servo motor etc..Yarn storage roller drive motor 62 drive yarn storage roller 61 be with center axis thereof
Center is rotated.In addition, the movement of yarn storage roller drive motor 62 is controlled by control unit 50.In the following description, will make to store up
The rotation in the contrary direction of 61 Xiang Yucong yarn feeding bobbin of yarn roller, 21 winding yarn 20 referred to as " inverts " etc..
Spooling unit 2 is due to being stored in yarn storage device 19 for a certain amount of yarn 20, so even if due to certain reason
And yarn 20 in the case where the unwinding of yarn feeding bobbin 21 (such as the case where carrying out connector) is interrupted, it can also wind and be stored in storage
The yarn 20 of yarn feeding device 19.Even if also can continue to yarn 20 to package 30 as a result, in the case where the unwinding of yarn 20 is interrupted
Winding.
Endless member 63 is configured near the end in the downstream side of yarn storage roller 61.It is stored in the yarn 20 of yarn storage device 19
By between endless member 63 and the surface of yarn storage roller 61 and being downstream drawn out.According to this structure, due to can for from
The yarn 20 that yarn storage roller 61 is unwound gives appropriate tension, so the unwinding of the yarn 20 can be made to stablize.
In the case where carrying out connector, control unit 50 blows afloat portion 11 for the yarn of 21 side of yarn feeding bobbin using yarn under working first
20 blow afloat upwards.The yarn 20 blown afloat is attracted and captured (referring to Fig. 2) by yarn trap 15.Thereby, it is possible to by the yarn feeding bobbin
The yarn 20 of 21 sides is guided to piecing devices 14.
In addition, the yarn ends formed due to broken yarn or yarn cutting etc. are wound in yarn storage roller 61.Therefore, control unit
50 make yarn storage roller 61 invert defined circle number while making upper yarn pulling unit 18 generate and attract stream.It is located at yarn storage roller as a result,
The yarn ends of the yarn 20 on 61 surface are attracted and are captured by upper yarn pulling unit 18.In addition, keeping yarn storage roller 61 anti-calculating
The processing progress for turning which kind of degree is aftermentioned.
The yarn 20 for attracting and capturing is blown towards yarn guiding tube 36 winged in upper yarn pulling unit 18.Yarn 20 is along yarn
Guiding tube 36 is conveyed, and is attracted and captured (referring to Fig. 2) by upper yarn capture unit 13.In yarn guiding tube 36 along long side side
To the slit of figure slightly is formed with, continue the attraction of yarn 20 by upper yarn capture unit 13, yarn 20 can be taken out from the slit.
Thereby, it is possible to guide the yarn 20 of 19 side of yarn storage device to piecing devices 14 (referring to Fig. 3).At this point, due to yarn 20 also by
It guides to the detection zone of yarn monitoring device 17, so can determine yarn 20 based on the testing result of yarn monitoring device 17
Pull-out success or not.
In the case where the yarn of 21 side of yarn feeding bobbin and the yarn of 19 side of yarn storage device are directed to the state of piecing devices 14,
Control unit 50 makes piecing devices 14 work, and connects above-mentioned yarn 20.If connector terminates, control unit 50 is by making yarn storage device 19
Direction when along winding rotates, and restarts winding of the yarn 20 to yarn storage device 19.
In addition, as described above, even if in yarn 20 as off-state between yarn feeding bobbin 21 and yarn storage device 19
In the case of, the yarn 20 in winder 8 can also continue without interruption to the winding of package 30.That is, present embodiment from
In dynamic winder, as described above, being folded with yarn storage device 19 between yarn feeding bobbin supporting part 7 and winder 8, filled in the yarn storage
It sets and is stored with a certain amount of yarn 20 on 19.Moreover, winder 8 is configured to the yarn 20 that winding is stored in yarn storage device 19.
Therefore, even if (such as carrying out connector in the case where interrupting supply of the yarn 20 from yarn feeding bobbin 21 due to certain reason
Situation), it also can continue to carry out winding of the yarn 20 to package 30.
In this way, the coiling action in winder 8 will not be interrupted due to connector, high speed and can stably generate
Package 30.In addition, due between yarn feeding bobbin 21 and winder 8 be configured with yarn storage device 19, so can not by from feed
The winding of tension change when 21 unwinding yarns 20 of yarn bobbin carried out with influencing in winder 8.
Next, the processing for the circle number for inverting yarn storage roller 61 when being scheduled on connector of fighting to the finish referring to Fig. 4~Fig. 6 is illustrated.
In the present embodiment, it is configured to not indicate the time of reversion when inverting yarn storage roller 61 and indicate reversion
Enclose number.Hereinafter, the reverse coil number of instruction is known as sometimes to invert instruction circle number.In addition, in the present specification, " reversion instruction circle
Number " is not limited merely to integer, also includes the value (1.5 circle of rotation etc.) between integer.In addition, " reversion instruction circle number " is actually to refer to
Show the circle number for inverting yarn storage roller 61, for example, it also includes the case where angle (720 degree etc.) of instruction reversion.
In the present embodiment, reversion instruction circle base in " length L1 needed for the pull-out of yarn 20 ", " for by yarn
20 guide from yarn storage device 19 to length L2 " needed for piecing devices 14, " for attracting 20 institute of yarn in upper yarn capture unit 13
The length L3 " and " the length L4 that the yarn defect for being included by yarn 20 all removes " needed is calculated.
Firstly, being illustrated referring to Fig. 4 to " length L1 needed for the pull-out of yarn 20 (hereinafter, being length L1) ".As above
It is described, when carrying out connector, the yarn ends by yarn 20 is needed to be wound in yarn storage roller 61, captures the yarn ends and pull out yarn
20.At this point, control unit 50 can not determine the yarn ends of yarn 20 are present in which position of yarn storage roller 61.
Here, as long as making yarn storage roller 61 is counter to turn around, just no matter yarn ends are located at which position on yarn storage roller 61, all can
Reliably by the suction port of upper yarn pulling unit 18 before.Therefore, as length L1, the one of the outer peripheral surface of yarn storage roller 61 is calculated
The length (hereinafter, being peripheral length) in week.In addition, the peripheral length of yarn storage roller 61 can also be shown as " by making yarn storage roller 61
Rotation is turned around and the length of yarn 20 that winds or unwind ".
Length L1 can (the radius r) or diameter of Fig. 4 be calculated according to the radius of yarn storage roller 61.The radius of yarn storage roller 61
Either diameter can also be pre-stored within control unit 50 (or body control device, below equally) in product export.In addition,
The peripheral length (i.e. length L1) of yarn storage roller 61 can also be made to be stored in preparatory control unit 50.In addition, yarn storage is not stored in advance
In the case where the situation of the radius of roller 61 etc., replacement yarn storage roller 61, radius that operator can be made to input using input unit 51
Etc. being stored in control unit 50.
Next, referring to Fig. 4 to " for guiding yarn 20 from yarn storage device 19 to length L2 needed for piecing devices 14
(hereinafter, being length L2) " is illustrated.Fig. 4 indicates the case where when yarn 20 is directed to piecing devices 14.As shown in figure 4, being
Yarn 20 is guided to piecing devices 14, at least needs to reach from yarn storage device 19 yarn 20 of the length of piecing devices 14.
In the layout of present embodiment, as shown in figure 4, length L2 is by will be from yarn storage device 19 to yarn monitoring device
The length L21 of 17 yarn path and the length L22 phase Calais from yarn monitoring device 17 to the yarn path of piecing devices 14
It calculates.In addition, the position that the starting point of length L21 is preferably pull-out yarn 20 in yarn storage device 19 (is storage in the present embodiment
The upstream side end of yarn roller 61).As the terminal of length L22, the position of the yarn 20 of connector is cut off preferably in piecing devices 14
It sets.
In addition, according to the layout of yarn take-up device, it is contemplated that exist not via the case where yarn monitoring device 17 or passing through
The case where by other devices.Even in this case, it can also cross that " yarn is directed to yarn when piecing devices by acquiring
It is in channel, from yarn storage device to the length of the yarn path of piecing devices " carry out computational length L2.
Next, referring to Fig. 4 to " length L3 needed for attracting yarn 20 for the upper yarn capture unit 13 of utilization is (hereinafter, be
Length L3) " it is illustrated.In order to need to attract yarn using upper yarn capture unit 13 by the guidance of yarn 20 to piecing devices 14
20。
In the layout of present embodiment, as shown in figure 4, length L3 in piecing devices 14 from yarn 20 by will be cut off
Position to the upstream side of piecing devices 14 guiding piece length L31, from the length of the supreme yarn capture unit 13 of the guiding piece
L32 and length L33 phase Calais for acting on the yarn 20 that is captured by upper yarn capture unit 13 attraction calculate.In addition,
The starting point of length L31 is preferably the position that the yarn 20 connected in piecing devices 14 is cut off.
In addition, in the present embodiment, due to guide yarn 20, institute in the way of the slightly detour of yarn guiding tube 36
The correction value for considering these can also be added further as length L3.
In addition, according to the layout of yarn take-up device, it is contemplated that the case where there is also via other devices.Even if this
In the case of, also can by acquire " it is in yarn path when yarn is directed to piecing devices, from the supreme yarn of piecing devices
The length of the yarn path of capture unit (capturing the part of upper yarn in the upstream side of piecing devices) " carrys out computational length L3.
Length L2 and length L3 can be calculated based on the layout of each device and yarn path.It is same as length L1,
Layout, yarn path or the length L2 and L3 calculated of each device can also be pre-stored within control in product export
Portion 50 processed.In addition, operator can be made to be stored in using the value that input unit 51 inputs in the case where replacement layout, component
Control unit 50.
Next, to " length L4 that the yarn defect for being included by yarn 20 all removes (hereinafter, being length L4) " into
Row explanation.As shown in figure 5, yarn defect has a degree of length sometimes.In this case, after connector, in order to include
The part of yarn defect all removes, and needs not remain on the part comprising yarn defect compared to piecing devices 14 more by 19 side of yarn storage device
Position.Therefore, in addition to length L1 and length L2, it is also necessary to will be equivalent to the amount of the length of the yarn defect further from yarn storage roller
61 pull out.
Here, yarn monitoring device 17 monitors yarn defect in winding, is detecting the yarn defect all by becoming normal
Yarn after utilize 16 cutting continuous strand 20 of cutter.Therefore, the end in the upstream side of yarn defect and yarn off-position (i.e. yarn
The position at end) generate several dislocation.Consider above situation, length L4 will be by that will include the length of the yarn 20 of the part of yarn defect
L41 is calculated with from the length L42 phase Calais of normal yarn for being not detected the position of yarn defect to yarn ends.
Next, referring to Fig. 6 and based on above explained length L1~L4 to the control unit calculating reversion when carrying out connector
Indicate that the processing of circle number is illustrated.Firstly, control unit 50 calculate above-mentioned length L1, L2 and L3 (S101, S102,
S103).In addition, these data can also be read in the case where being stored with length L1, L2 and L3.
Next, control unit 50 judges whether the reason of carrying out connector is the detection (S104) based on yarn defect.It is being connect
In the case that the reason of head is (such as replacement of yarn feeding bobbin 21) other than yarn defect, as long as by the guidance of yarn 20 to piecing devices 14
It can (there is no the parts that should remove yarn defect etc.).Therefore, it should which the length L of reversion (hereinafter, being length L) is by by length
L1, length L2 and length L3 phase Calais calculate (S105).
On the other hand, control unit 50 the reason of carrying out connector for the detection of yarn defect in the case where, from yarn monitoring device
17 obtain length L4 (S106).Control unit 50 judges the length L4 (S107) whether longer than length L3 obtained.
In the case where length L4 is longer than length L3, it is able to use the yarn 20 for being equivalent to the part of length L4, by yarn
20 are transferred to upper yarn capture unit 13 from piecing devices 14.In other words, using the yarn 20 for the part that should be removed, length is played
The effect of L3.
In addition, be equivalent to the size of length L1 Yu length L2 by pulling out yarn 20, and can be by yarn 20 from yarn storage
Device 19 is transferred to piecing devices 14.Then, by further increasing length L4, without will include that the part of yarn defect is supplied to connecing
Head device 14.Therefore, yarn defect can be removed from yarn 20.As can be observed from the foregoing, it in the case where length L4 is longer than length L3, answers
The length L of the reversion is by calculating (S108) for length L1, length L2 and length L4 phase Calais.
On the other hand, in the case where length L4 is shorter than length L3, length L4 is added even if in length L1 and length L2
Yarn 20 can not be transferred to upper yarn capture unit 13.Therefore, in the case where length L4 is shorter than length L3, it should the length of reversion
L is spent by the way that length L1, length L2 and length L3 phase Calais are calculated (S105).
Control unit 50 determines length L as described above, and by length L divided by the peripheral length of yarn storage roller 61, to count
Calculate reversion instruction circle number (S109) for being equivalent to length L.Control unit 50 so that yarn storage roller 61 reversion be equivalent to it is calculated in this way
The mode for inverting the size of indicating length controls yarn storage roller drive motor 62.The indicating mode of circle number is indicated as reversion, such as
For lifting in the way of the instruction of the width of the quantity of pulse, pulse.
Later, control unit 50 judges whether yarn monitoring device 17 detects the presence of yarn 20.In yarn monitoring device
17 are not detected the pull-out failure that yarn 20 as described above is thought of as in the presence of yarn 20, therefore will for example store up
Yarn roller 61 rotates in the take-up direction circle etc. and is easy to capture yarn ends and then the secondary pull-out for carrying out yarn 20.In addition, after
In the case where the pull-out failure of the yarn 20 of continuous rule fixing turn, control unit 50 is sounded an alarm, and reports the purport to operator.
As described above, automatic bobbin winder has yarn feeding bobbin supporting part 7, yarn storage device 19, winder 8, connects
Head device 14, upper yarn pulling unit 18 and control unit 50.Yarn feeding bobbin supporting part 7 supplies yarn 20.Yarn storage device 19 passes through storage
Yarn roller 61 rotates, and winds and temporarily store the yarn 20 that yarn feeding bobbin supporting part 7 is supplied.Winder 8 is by by yarn 20
Mound bobbins 22 are pulled out and be wound in from yarn storage device 19 and form package 30.Piecing devices 14 are in yarn 20 in yarn feeding bobbin branch
Bearing portion 7 and yarn storage device 19 it is separated when, the yarn 20 of 7 side of yarn feeding bobbin supporting part that will be switched off and 19 side of yarn storage device
Yarn 20 connects.The yarn 20 of 19 side of yarn storage device is pulled out from the yarn storage device 19 and is guided to connector by upper yarn pulling unit 18
Device 14.Control unit 50 by the yarn 20 of 19 side of yarn storage device to piecing devices 14 guide when, calculating make yarn storage roller 61 to
The circle number that is, reversion instruction circle number that opposite direction rotates when winding, and control the reversion control of the yarn storage roller 61, with
The reverse coil number of yarn storage roller 61 is set to become reversion instruction circle number.
As a result, when pulling out yarn 20 from yarn storage device 19, by the circle number for indicating to invert yarn storage roller 61, and can be quasi-
Really control the length of the yarn 20 pulled out from yarn storage device 19.Therefore, the length of discarded yarn 20, and energy are able to suppress
Enough shortening joint the time it takes.
In addition, reversion instruction circle base turns around in by the rotation of yarn storage roller 61 in the automatic bobbin winder of present embodiment
And store or the length (length L1) of the yarn 20 of unwinding with from yarn storage device 19 to the yarn path of piecing devices 14 away from
It is calculated from (length L2).
The length of the yarn 20 of (unwinding) is stored by considering to turn around by the rotation of yarn storage roller 61 as a result, and can be estimated
It has been calculated as starting with reverse coil number needed for upper yarn pulling unit 18 captures yarn ends from reversion.In addition, by considering from storage
Yarn feeding device 19 and can estimate yarn 20 in order to pull out to piecing devices 14 to the distance of the yarn path of piecing devices 14
Reverse coil number needed for guidance.
In addition, yarn storage roller 61 winds in outer peripheral surface and stores yarn 20 in the automatic bobbin winder of present embodiment.Pass through
Yarn storage roller 61, which revolves, to turn around and the length (length L1) of yarn 20 that stores or unwind is based on the radius of yarn storage roller 61 or directly
Diameter calculates.
Simple calculations is carried out according only to radius or diameter as a result, just can calculate depositing for every circle rotation of yarn storage roller
Reserves (unwinding amount).
In addition, having upper yarn capture unit 13, yarn pulling unit in attraction in the automatic bobbin winder of present embodiment
18 yarns 20 pulled out from yarn storage device 19 simultaneously capture the yarn 20 compared to 14 upstream side of piecing devices.Reversion
Instruction circle number is based further on the distance (length L3) from the yarn path of the supreme yarn capture unit 13 of piecing devices 14 to determine.
Thereby, it is possible to more accurately estimate the yarn 20 of pull-out guiding required reverse coil to piecing devices 14
Number.
In addition, the automatic bobbin winder of present embodiment has yarn monitoring device 17 and cutter 16.Yarn monitoring device
The flaw of the yarn 20 of the upstream side of 17 detection yarn storage devices 19.Cutter 16 when yarn monitoring device 17 detects yarn defect
The upstream side cutting continuous strand 20 of yarn defect.Reversion instruction circle number is based further on the length of yarn defect detected by yarn monitoring device 17
Degree is to determine.
Yarn defect detected is all removed as a result, and can accurately estimate in order to by the yarn 20 of pull-out to connecing
Head device 14 guides required reverse coil number.In addition, not only detecting yarn defect in the case where newly supply yarn feeding bobbin 21
In the case of also can by yarn 20 pull out necessity and sufficiency length.
Next, being illustrated referring to variation of the Fig. 7 to above embodiment.In addition, in the explanation of this variation,
Sometimes identical appended drawing reference is marked in attached drawing to the component same or similar with above-mentioned embodiment, and omitted the description.
In the above-described embodiment, for the yarn storage roller 61 of stationary state, the reversion of yarn storage roller 61 is made to be equivalent to reversion instruction
Enclose the size of number.In other words, the counting of reverse coil number is immediately begun to after reversion since yarn storage roller 61.In contrast, at this
It in variation, is inverted since yarn storage roller 61, at the time of upper yarn pulling unit 18 captures yarn 20, starts the meter of reverse coil number
Number.Therefore, in this variation, due to the length L1 without the concern for above embodiment, so reversion instruction circle number becomes
" length L2+ length L3 " or " length L2+ length L4 ".
In addition, the spooling unit 2 of this variation is to detect the case where upper yarn pulling unit 18 captures yarn 20, and have
Standby pull-out yarn test section 18a shown in Fig. 7.Pulling out yarn test section 18a is to be set to the optical sensing attracted in access 18b
Device.The reflection sensor for pulling out the reflected light that yarn test section 18a can be reflected for the light of detection irradiation by yarn 20, can also
Think the through mode sensor for the case where light of detection irradiation is blocked by yarn 20.In addition, it is not limited to optical profile type, additionally it is possible to
Using static capacity type sensor, touch sensor.Yarn test section 18a is pulled out to 50 output test result of control unit.Control
Portion 50 processed starts the counting of reverse coil number in the presence of judging yarn 20 according to the testing result.
The preferred embodiments of the present invention is illustrated above, but above-mentioned structure for example can also as follows into
Row change.
In the above-described embodiment, the structure that yarn 20 is wound in outer peripheral surface by the rotation of yarn storage roller 61 has been used
Yarn storage device 19.Also it can replace yarn storage device 19, (deposited using the arm winding unit by being formed with yarn access in inside
Storage winder) it is rotated and the yarn storage device of the structure in memory bank storage yarn around memory bank.In this case, according to by
The revolution of the winding unit of arm calculates L1~L4.
In the above-described embodiment, the presence of yarn 20 is detected by yarn monitoring device 17 to determine the pull-out of yarn 20
Success or not, but also can use and pull out yarn test section 18a to determine the success or not of the pull-out of yarn 20.
In the above-described embodiment, yarn storage roller drive motor 62 by carry out spooling unit 2 each section control control
Portion 50 controls, but can also be controlled by the motor control part being provided separately with control unit 50.In addition, in above embodiment
In, reversion control is carried out using the control unit 50 for being set to each spooling unit 2, but also can use the progress of body control device
The some or all of carried out processing are controlled by reversion.Alternatively, it is also possible to make yarn monitoring device 17 only carry out yarn
The detection of 20 state carries out its analysis using control unit 50 or body control device.
In the above-described embodiment, the example for supplying yarn feeding bobbin 21 using yarn library formula bobbin supply apparatus 26 is carried out
Illustrate, but may be the yarn take-up device for having pellet type bobbin supply apparatus.
Structure of the invention is not limited to automatic bobbin winder, additionally it is possible to applied to having yarn storage device and piecing devices
Other kinds of yarn take-up device.
Claims (15)
1. a kind of yarn take-up device, which is characterized in that have:
Yarn feeder can supply yarn；
Yarn storage device from the yarn feeder winding yarn and temporarily stores yarn by storage winder rotation；
Forming portion is wrapped, forms package and pulling out yarn from the yarn storage device and being wound in mound bobbins；
Piecing devices, yarn the yarn feeder and the yarn storage device it is separated when, the yarn feeder side that will be switched off
Yarn and the yarn of the yarn storage device side connect；
The yarn of the yarn storage device side is pulled out from the yarn storage device and is guided to the piecing devices by yarn storage pulling unit；
Control unit carries out making the storage winder when guiding the yarn of the yarn storage device side to the piecing devices
The reversion rotated along the direction opposite with when winding controls,
The control unit controls the storage winder in reversion control, to make the reverse coil of the storage winder
Number becomes the reversion instruction circle number determined,
The control unit calculates the reversion instruction circle number in reversion control,
The reversion instruction circle base is in the length for revolving the yarn for storing or unwinding that turns around by the storage winder
With from the yarn storage device to calculating at a distance from the yarn path of the piecing devices.
2. yarn take-up device according to claim 1, which is characterized in that
The storage winder is to wind and store the yarn storage roller of yarn in outer peripheral surface,
The length for the yarn for storing or unwinding that turns around is revolved based on the radius of the yarn storage roller by the storage winder
Or diameter calculates.
3. yarn take-up device according to claim 1, which is characterized in that
Has yarn storage capture unit, the yarn for attracting the yarn storage pulling unit to pull out from the yarn storage device simultaneously connects compared to described
The position capture of the head device upstream side yarn,
The reversion instruction circle number is based further on the distance from the piecing devices to the yarn path of the yarn storage capture unit
To determine.
4. yarn take-up device according to claim 2, which is characterized in that
Has yarn storage capture unit, the yarn for attracting the yarn storage pulling unit to pull out from the yarn storage device simultaneously connects compared to described
The position capture of the head device upstream side yarn,
The reversion instruction circle number is based further on the distance from the piecing devices to the yarn path of the yarn storage capture unit
To determine.
5. yarn take-up device described according to claim 1~any one of 4, which is characterized in that have:
Yarn defect detection device, detection are wound in the flaw of the yarn of the yarn storage device；With
Cutting portion cuts off yarn in the upstream side of the flaw of yarn when the yarn defect detection device detects the flaw of yarn
Line,
The reversion instruction circle number is based further on the length of yarn defect detected by the yarn defect detection device to determine.
6. yarn take-up device according to claim 5, which is characterized in that
Have yarn test section, detect the presence of the yarn in the specified position of yarn path,
The control unit in the case where yarn is not detected after the reversion controls in the yarn test section, again into
The row reversion control.
7. yarn take-up device according to claim 6, which is characterized in that
The yarn defect detection device plays a role as the yarn test section.
8. yarn take-up device described according to claim 1~any one of 4, which is characterized in that
The yarn storage pulling unit attracts yarn from the yarn storage device, makes the yarn by being formed in internal attraction access and drawing
The yarn out,
It is configured with the existing pull-out yarn test section of detection yarn in the attraction access,
The control unit starts the reverse coil of the storage winder at the time of pull-out yarn test section detects yarn
Several countings.
9. yarn take-up device according to claim 6, which is characterized in that
The yarn storage pulling unit attracts yarn from the yarn storage device, makes the yarn by being formed in internal attraction access and drawing
The yarn out,
It is configured with the existing pull-out yarn test section of detection yarn in the attraction access,
The pull-out yarn test section plays a role as the yarn test section,
The control unit starts the reverse coil of the storage winder at the time of pull-out yarn test section detects yarn
Several countings.
10. yarn take-up device described according to claim 1~any one of 4, which is characterized in that
Have input unit, the calculating of the reversion instruction circle number or input for reversion instruction circle number can be inputted
Value.
11. yarn take-up device described according to claim 1~any one of 4, which is characterized in that
The yarn feeder is the yarn feeding bobbin supporting part for the yarn feeding bobbin that bearing can supply yarn.
12. a kind of yarn take-up device, which is characterized in that have:
Yarn feeder can supply yarn；
Yarn storage device from the yarn feeder winding yarn and temporarily stores yarn by storage winder rotation；
Forming portion is wrapped, forms package and pulling out yarn from the yarn storage device and being wound in mound bobbins；
Piecing devices, yarn the yarn feeder and the yarn storage device it is separated when, the yarn feeder side that will be switched off
Yarn and the yarn of the yarn storage device side connect；
The yarn of the yarn storage device side is pulled out from the yarn storage device and is guided to the piecing devices by yarn storage pulling unit；
Control unit carries out making the storage winder when guiding the yarn of the yarn storage device side to the piecing devices
The reversion rotated along the direction opposite with when winding controls,
The control unit controls the storage winder in reversion control, to make the reverse coil of the storage winder
Number becomes the reversion instruction circle number determined,
The yarn storage pulling unit attracts yarn from the yarn storage device, makes the yarn by being formed in internal attraction access and drawing
The yarn out,
It is configured with the existing pull-out yarn test section of detection yarn in the attraction access,
The control unit starts the reverse coil of the yarn storage pulling unit at the time of pull-out yarn test section detects yarn
Several countings.
13. yarn take-up device according to claim 12, which is characterized in that
Have input unit, the calculating of the reversion instruction circle number or input for reversion instruction circle number can be inputted
Value.
14. yarn take-up device according to claim 12 or 13, which is characterized in that
The yarn feeder is the yarn feeding bobbin supporting part for the yarn feeding bobbin that bearing can supply yarn.
15. yarn take-up device according to claim 12, which is characterized in that
The yarn take-up device has:
Yarn defect detection device, detection are wound in the flaw of the yarn of the yarn storage device；With
Cutting portion cuts off yarn in the upstream side of the flaw of yarn when the yarn defect detection device detects the flaw of yarn
Line,
The reversion instruction circle number is based further on the length of yarn defect detected by the yarn defect detection device to determine.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014174525A JP2016050053A (en) | 2014-08-28 | 2014-08-28 | Yarn winding device |
| JP2014-174525 | 2014-08-28 |
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| CN105383999A CN105383999A (en) | 2016-03-09 |
| CN105383999B true CN105383999B (en) | 2019-06-07 |
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| CN201510398222.8A Active CN105383999B (en) | 2014-08-28 | 2015-07-08 | Yarn take-up device |
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| EP (1) | EP2990367B1 (en) |
| JP (1) | JP2016050053A (en) |
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| IT201600074062A1 (en) * | 2016-07-15 | 2018-01-15 | Lgl Electronics Spa | METHOD FOR CHECKING THE YARN STRUCTURE FROM A WEFT FEEDER |
| CN108859174B (en) * | 2018-05-29 | 2021-04-27 | 江苏九鼎新材料股份有限公司 | Yarn winding vehicle for glass fiber reinforced plastic molding grid |
| JP2021062967A (en) * | 2019-10-16 | 2021-04-22 | 村田機械株式会社 | Thread take-up device and thread capture method |
| JP2024055547A (en) | 2022-10-07 | 2024-04-18 | 村田機械株式会社 | Yarn Winding Device |
| EP4357285A1 (en) | 2022-10-19 | 2024-04-24 | Murata Machinery, Ltd. | Yarn winding machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2010047407A (en) | 2008-08-25 | 2010-03-04 | Murata Machinery Ltd | Yarn winding device and automatic winder with the same |
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2014
- 2014-08-28 JP JP2014174525A patent/JP2016050053A/en active Pending
-
2015
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- 2015-07-08 CN CN201510398222.8A patent/CN105383999B/en active Active
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| JPH08246273A (en) * | 1995-03-13 | 1996-09-24 | Murata Mach Ltd | Piecing method and piecing apparatus |
| CN101549806A (en) * | 2008-03-31 | 2009-10-07 | 村田机械株式会社 | Yarn winding device and automatic winder comprising yarn winding device |
| CN101659361A (en) * | 2008-08-25 | 2010-03-03 | 村田机械株式会社 | Yarn winding device and automatic winder with the same |
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| CN105383999A (en) | 2016-03-09 |
| EP2990367B1 (en) | 2017-04-12 |
| EP2990367A1 (en) | 2016-03-02 |
| JP2016050053A (en) | 2016-04-11 |
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