CN101659361B

CN101659361B - Yarn winding device and automatic winder with the same

Info

Publication number: CN101659361B
Application number: CN200910152165XA
Authority: CN
Inventors: 木野义浩
Original assignee: Murata Machinery Ltd
Current assignee: Murata Machinery Ltd
Priority date: 2008-08-25
Filing date: 2009-07-20
Publication date: 2012-11-28
Anticipated expiration: 2029-07-20
Also published as: EP2159180A2; EP2159180B1; CN101659361A; JP2010047406A; EP2159180A3

Abstract

A winding unit 10 in an automatic winder is configured to wind a predetermined length of yarn 20 into a package 30. The winding unit 10 includes a yarn pool section 71, a servo motor 55, and a yarn length control section 90. The yarn pool section 71 accumulates that the yarn before being wound into the package 30. The servo motor 55 is driven to supply the yarn to the yarn pool section 71. The yarn length control section 90 allows a supply count section 91 to count a forward rotation pulse signal from the servo motor 55 so that the predetermined length of yarn is wound into the package 30. Then, based on the count value in the forward rotation pulse signal, the length of the yarn wound into the package 30 is calculated.

Description

Yarn take-up device and have the automatic bobbin winder of this yarn take-up device

Technical field

The present invention relates to yarn take-up device and automatic bobbin winder, at length say, relate to the technology that the length of yarn that is wound up in the package is controlled.

Background technology

Make the yarn of yarn feeding spool engage the package that forms through yarn take-up device (automatic bobbin winder), under situation about being used, be sent to warping process as subsequent handling as warp.In this warping process, the yarn of a plurality of packages is wound up on the common warp axle with the same tension force simultaneously.Therefore; Have under the uneven situation of length of yarn in generation between package; Owing to be to be that benchmark carries out winding work with the shortest package of coiling length; Thereby in other package, that a part of yarn that coiling length surpasses the length of yarn of the shortest package goes out of use as a large amount of useless yarns.

In order to suppress the generation of this useless yarn, Yi Bian carried out winding work from begin to have proposed on one side yarn speed and length of yarn kept watch in the past, make each package can not produce the uneven scheme of length of yarn.The technical literature that discloses this yarn take-up device for example has TOHKEMY 2002-348044 communique.The reel for yarn of the weaving loom of TOHKEMY 2002-348044 communique is around the position, the evaluating apparatus that has a device that is used for determining accurately the length of yarn through Yarn senser and be used to accumulate the length of yarn that has passed through.The device of the length of yarn that this determines to pass through accurately has: measure head, two measuring points that this mensurations head disposes before and after having on the sense of motion of the yarn that passes through each other; The shifting time treater, this shifting time treater is used for the measured value that processing and detecting arrives.Reel for yarn has the device of decision removed length of yarn in the scope of yarn combining device around the position.Constitute, when owing to detecting the yarn defect and cut off yarn, above-mentioned evaluating apparatus deducts the length of yarn of removing from the length of yarn of the yarn of deriving according to the length of yarn that has passed through Yarn senser.Thus, TOHKEMY 2002-348044 communique can improve the keeping of length of yarn of the regulation that is used for the cross winding spool.

But; As TOHKEMY 2002-348044 communique, to measure the structure that head carries out direct perception to yarn; For yarn speed and the length of yarn (for example through above-mentioned shifting time treater) that determines to reel needs complicated calculating, this becomes the reason of complicated and expensiveization of structure.

And in yarn take-up device, consider that also the rotation according to the reel spool that package is driven comes the yarn speed of computing coiling and the scheme of length of yarn.But, in the winding work of the package of reality, the rotative speed that exists reel spool be wound up into the inconsistent situation of yarn speed in the package.For example since the package of cone volume winding diameter is different in the axial direction, thereby the yarn speed of reeling in the reality can change because of winding position.In the package of bobbin volume, under the situation of the control that package is slided with respect to reel spool, can between the rotative speed of reel spool and real yarn speed, produce deviation.Therefore, under the situation about controlling according to the rotation of reel spool, be difficult to precision and control length of yarn goodly, can not suppress useless yarn effectively.

Summary of the invention

The present invention In view of the foregoing makes, and its purpose is to provide a kind of yarn take-up device simple in structure and the automatic bobbin winder that can critically measure the length of yarn that is wound up in the package.

Next technical matters to be solved by this invention explains means and the effect thereof that is used to solve this technical problem as stated.

According to first viewpoint of the present invention, be wound up in the yarn take-up device in the package at yarn specified length, following structure is provided.That is, yarn take-up device has the yarn reservoir, yarn holds and stays drive division and count section.Said yarn reservoir is held the yarn that stays before being wound up in the said package.Said yarn holds and stays drive division to be driven for supplying with yarn to said yarn reservoir.Said count section is held said yarn and is stayed the drive amount of drive division to count.And, calculate the length of yarn that is winding in the said package according to the count value of said drive amount.

Thus, stay the drive amount of drive division to count, can measure the length of yarn that is wound up in the package in the stage before reality is wound up into yarn in this package through yarn is held.Therefore, can not receive the winding work of package to influence ground, critically calculate the length of yarn that is wound in the package.Consequently, owing to can correctly unify the length of yarn of each package, thereby can prevent the useless yarn of reeling, can improve the production efficiency of package.

In above-mentioned yarn take-up device, preferred formation as following.That is, yarn take-up device have for connect the yarn operation be configured in said yarn reservoir upstream side connect yarn feeding device.Said yarn when upstream side is drawn with yarn holds and stays the drive amount of drive division to count said count section from said yarn reservoir when connecing the yarn operation to said.And; To supplying with count value and returning count value and consider; Calculate the length of yarn that is winding in the said package; Wherein, said supply count value be to up to said connect the yarn operation and carry out till, hold the value that the drive amount of staying drive division counts to get for supply with the driven said yarn of yarn to said yarn reservoir, the said count value of returning is to for carrying out the value that said drive amount when connecing the yarn operation upstream side being drawn with yarn from said yarn reservoir counts to get.

Thus, yarn holds and stays the drive amount of drive division to count during through butt joint yarn operation, can correctly calculate from the yarn reservoir length of yarn that returns of side upstream.Because the length of yarn to critically calculating is like this considered, thereby can more correctly be calculated the length of yarn that is wound up in the package.

In above-mentioned yarn take-up device, preferred formation as following.That is, yarn take-up device has the yarn feeding spool portion is set, and this yarn feeding spool is provided with the yarn feeding spool that portion can change and be provided for supplying with the yarn that is wound up in the said package.When changing the yarn feeding spool, will the said yarn when connecing the yarn operation upstream side is drawn with the yarn of necessary length from said yarn reservoir hold the drive amount of staying drive division and count as the above-mentioned count value of returning.And, consider that this returns count value and said supply count value, calculates the length of yarn that is winding in the said package.

Thus, can correctly calculate the yarn of a plurality of yarn feeding spools is engaged and the length of yarn of the package that forms.

In above-mentioned yarn take-up device, preferred formation as following.That is, yarn take-up device has upstream side in said yarn reservoir, is used to detect the yarn defect detector of yarn defect.When said yarn defect detector detects the yarn defect, hold the count value that the drive amount of staying drive division counts to get according to said yarn defect detector being detected said yarn during the yarn defect, calculate yarn defect length.

Thus, can be through drive amount be counted, thus correctly calculate the length of detected yarn defect part through yarn defect detector.

According to second viewpoint of the present invention, the automatic bobbin winder with a plurality of above-mentioned yarn take-up devices is provided.

Inhomogeneous, the automatic bobbin winder that can form the package that correctly receives the fixed length management of the length of yarn of the package that inhibition forms with each yarn take-up device can be provided thus.

Other characteristic, key element, process, step, characteristic and advantage of the present invention can be more obvious in the following detailed description with reference to accompanying drawing to preferred implementation.

Description of drawings

Fig. 1 is the front view of schematic configuration of the winder unit of expression an embodiment of the invention.

Fig. 2 is the schematic sectional view of state of the reservoir of this embodiment of expression.

Fig. 3 is the front view of schematic configuration of the winder unit of expression variation.

The specific embodiment

Preferred implementation of the present invention is described with reference to the accompanying drawings.Fig. 1 is the front view of schematic configuration of the winder unit 10 of expression an embodiment of the invention.

Winder unit shown in Figure 1 (yarn take-up device) 10 is wound up into it on coiling spool 22 while making to traverse from the yarn 20 of yarn feeding spool 21 unwindings, forms the package 30 of specified length, regulation shape.

Automatic bobbin winder of the present invention has a plurality of winder units 10 of configuration arranged side by side and is configured in this and the graphic board control setup of omission of an end of column direction.Each winder unit 10 has the winding unit main body 16 that is bearing on the not shown unit rack.

As shown in Figure 1, above-mentioned winding unit main body 16 has yarn feeder 5, meets yarn portion 6, yarn defect test section 7, yarn reserving portion 8 and coiling portion 9.In following explanation, moving direction upstream side and the downstream with yarn 20 is called " upstream side ", " downstream " simply sometimes.

Yarn feeder 5 has yarn feeding spool maintaining part (the yarn feeding spool is provided with portion) 60, unwinding yarn auxiliary device 12, first tensioner 41.

Yarn feeding spool maintaining part 60 constitutes, and can change and be provided for supplying with the yarn feeding spool 21 of yarn 20.On this yarn feeding spool maintaining part 60, be connected with and be used for the graphic spool feedway of omission that new yarn feeding spool 21 is supplied with to this yarn feeding spool maintaining part 60.As this spool feedway, for example can adopt the feedway of yarn storehouse formula and the feedway of pellet type.

Above-mentioned yarn feeder 5 is all drawn at the yarn feeding spool 21 of yarn 20 on being arranged on yarn feeding spool maintaining part 60, when yarn feeding spool 21 becomes empty spool, this empty spool is discharged from yarn feeding spool maintaining part 60.Above-mentioned spool feedway can be supplied with new yarn feeding spool 21 successively to the yarn feeding spool maintaining part 60 of having discharged empty spool.

Unwinding yarn auxiliary device 12 makes the limiting part 40 on the core pipe that covers yarn feeding spool 21 descend linkedly with the unwinding action of yarn from yarn feeding spool 21, thus, yarn is assisted from the unwinding of yarn feeding spool 21.Limiting part 40 comes the unwinding of yarn is assisted through this air ring being given suitable tension force with respect to because of the rotation from the yarn of yarn feeding spool 21 unwindings contacts with the air ring that centnifugal force is formed on yarn feeding spool 21 tops.Near limiting part 40, has the graphic sensor of omission of the cop top conical surface portion that is used to detect above-mentioned yarn feeding spool 21.When the sensor detects the decline of cop top conical surface portion, can follow the trail of it, and control and make above-mentioned limiting part 40 for example descend through cylinder (omit diagram).

Near unwinding yarn auxiliary device 12, be provided with the yarn detector that has or not (upstream side yarn detecting sensor) 37 that can detect yarn 20.This yarn detector 37 constitutes, and can detect from the using up of yarn feeding spool 21 derivative yarns 20, and send no yarn detection signal to unit controls portion 50.

First tensioner 41 is parts of the yarn 20 that moves being given the tension force of regulation.As this first tensioner 41, for example, can adopt the door type tensioner of the broach movable with respect to fixing broach configuration.The broach of movable side can rotate through omitting graphic revolving screw actuator, thereby becomes engagement or release position between the broach.In addition, this first tensioner 41 is not limited to door type tensioner, can also adopt the for example tensioner of disc type.

Connect the downstream that yarn portion 6 is configured in above-mentioned yarn feeder 5.Meeting yarn portion 6 has: the device of splicer (connecing yarn feeding device) 14, downstream yarn guiding tube (the downstream yarn is caught mechanism) 26, the upstream side yarn guiding tube (the upstream side yarn is caught mechanism) 25 that connect the yarn operation.

Device of splicer 14 be after the yarn clearer 15 stated under the situation downstream yarn of the upstream side yarn of yarn feeding spool 21 sides and package 30 sides connect the device of yarn when when detecting the yarn defect or from the yarn in the unwinding of yarn feeding spool 21 broken end taking place etc.As device of splicer 14, can use mechanical device, utilize the device etc. of the fluid of pressurized air etc.

At the downside and the upside of device of splicer 14, be provided with the upstream side yarn of seizure yarn feeding spool 21 sides and upstream side yarn guiding tube 25 and the downstream yarn of seizure package 30 sides and the downstream yarn guiding tube 26 of channeling conduct of channeling conduct.

Downstream yarn guiding tube 26 constitutes, can be at the catching position that is used to catch the downstream yarn, and to be used for the downstream yarn that captures be that rotate at the center with axle 35 between the guide position of device of splicer 14 guiding.Upstream side yarn guiding tube 25 constitutes, can be at the catching position that is used to catch the upstream side yarn, and to be used for the upstream side yarn that captures be that rotate at the center with axle 33 between the guide position of device of splicer 14 guiding.

Be formed with attraction mouth 32 on the top of upstream side yarn guiding tube 25, likewise, the top of yarn guiding tube 26 also is formed with and attracts mouth 34 in the downstream.On upstream side yarn guiding tube 25 and downstream yarn guiding tube 26, be connected with suitable negative pressure source respectively, can and attract mouthful 34 effects to attract stream above-mentioned attraction mouth 32.

Yarn defect test section 7 is configured in the above-mentioned downstream that meets yarn portion 6.This yarn defect test section 7 has the yarn clearer (yarn defect detector) 15 that the rugosity of the yarn 20 that moves is kept watch on.

Yarn clearer 15 has appropriate sensors, and constituting can be through handling the yarn defect that detects slubbing etc. with 52 pairs of signals from this sensor of analyzer.In addition, above-mentioned yarn clearer 15 can also use as the sensor of the moving velocity that detects yarn 20 and the sensor that only having or not of yarn 20 is detected.

Near yarn clearer 15, dispose and be used for when this yarn clearer 15 detects the yarn defect cutter (yarn shoutoff mechanism) 18 that yarn is cut off.In the downstream of yarn clearer 15, dispose the waxing attachment 17 that is used for the yarn waxing that moves.And, have the graphic attraction of omission portion in the downstream of waxing attachment 17.This attraction portion is connected with suitable negative pressure source, can the dregs of wax, hard waste etc. attracted to remove.

Yarn reserving portion 8 is configured in the downstream of above-mentioned yarn defect test section 7.Yarn reserving portion 8 has reservoir (yarn holds and stays device) 61, and this reservoir 61 can hold the yarn 20 from 21 unwindings of yarn feeding spool to be stayed on the yarn reservoir 71.Hold from the yarn 20 of yarn feeding spool 21 unwindings and to stay on the reservoir 61, then, drawn, be wound up in the package 30 from reservoir 61.

Above-mentioned reservoir 61 constitutes can upstream side and this both direction of downstream be drawn with holding the yarn 20 that stays.Through this structure, this reservoir 61 can with make hold the yarn 20 that stays be wound up in the package 30 action concurrently, the yarn operation is drawn, connect to yarn 20 to yarn feeding spool 21 sides too.In addition, explain in the back about the details of the structure of reservoir 61.

Coiling portion 9 is configured in the downstream of above-mentioned yarn reserving portion 8.Coiling portion 9 has: constitute the spool 22 that can keep reeling reel cage 23, be used to that yarn 20 is traversed and make reel spool (reel traverses) 24, second tensioner 42 of above-mentioned coiling spool 22 rotations.

Reel cage 23 constitutes, can relative volume winding reel 24 near or away from direction on swing, thus, the increase of package 30 diameters that can the coiling that be accompanied by yarn 20 be produced absorbs.On the outer peripheral face of above-mentioned reel spool 24, be formed with the screw-shaped groove 27 that traverses, the mode that yarn 20 traverses constituted with the groove 27 that traverses through this.

Second tensioner 42 is configured in the downstream of reservoir 61, and the tension force that yarn 20 is produced during from reservoir 61 unwindings is controlled.Thus, can under the state that has been endowed suitable tension force, be wound up on the coiling spool 22 from reservoir 61 derivative yarns.As this second tensioner 42,, can adopt the door type tensioner of the broach movable or the tensioner of disc type with respect to fixing broach configuration with first tensioner, 41 identical ground.

Coiling spool 22 drives and is driven through the rotation of the reel spool 24 that relatively disposes with this coiling spool 22.This reel spool 24 is attached on the output shaft of reel drive motor 53, and the action of this reel drive motor 53 is controlled by motor controling part 54.This motor controling part 54 constitutes, and can receive the CRANK PULSES from unit controls portion 50, the control that makes above-mentioned reel drive motor 53 runnings and stop.

Wherein, When in the coiling of package 30, when the rotating speed of reel spool 24 and package 30 becomes concerning of integral multiple or integer/one; The traverse coiling cycle synchronisation of cycle and package 30, the yarn that can reel is collected at the situation that same position is so-called overlapping coiling.In the package that this overlapping coiling has taken place 30, the problem of situation such as exist between the yarn easily snarl each other, in subsequent handling, can break end during with unwinding yarn.Consider this point; The unit controls portion 50 of this embodiment (motor controling part 54); Making the rotation of reel spool 24 increase and decrease speed sharp near the overlapping coiling generation diameter, making to produce between package 30 and the reel spool 24 and slide, make the yarn road dispersion of the yarn that traverses, the control (Interference Control) of reeling.Thus, can dissolve overlapping coiling, the good package 30 of formation unwinding property.

Next with reference to Fig. 2 reservoir 61 is described.Fig. 2 is the schematic sectional view of the schematic configuration of expression reservoir 61.As shown in Figure 2, reservoir 61 has S. A. shell 70, yarn reservoir 71, yarn guide portion 72.Above-mentioned S. A. shell 70 has the open tube cylindraceous portion 78 in top and is formed at the blade of a sword portion 79 of the open sides end of this one 78.

Above-mentioned yarn reservoir 71 is configured in the top of above-mentioned blade of a sword portion 79.This yarn reservoir 71 has: form discoideus back plate 81, from this back plate 81 to the outstanding a plurality of rod units 82 in top, connecting the discoideus adapter plate 83 of the top end part of these a plurality of rod units 82.Yarn reservoir 71 disposes with the mode that between above-mentioned back plate 81 and above-mentioned blade of a sword portion 79, forms the gap, and holding of stating after constituting stays the guide arm 75 can be in the rotation of the inside in this gap.

Back plate 81 on even keels configurations, and, this above back plate 81 on, a plurality of rod units 82 are equally spaced configuration side by side on circumference.Above-mentioned yarn reservoir 71 constitutes, and forms the general cylindrical shape shape through these rod units 82.Through yarn 20 being wound up on the outer peripheral portion of this yarn reservoir 71, yarn 20 is held to be stayed on the yarn reservoir 71.

Yarn guide portion 72 is configured in the inside of above-mentioned S. A. shell 70.On S. A. shell 70, be formed with entrance hole 80 in the bottom (with the end of yarn reservoir 71 opposition sides) of above-mentioned tube portion 78, be directed to yarn guide portion 72 from yarn feeding spool 21 derivative yarns 20 from above-mentioned entrance hole 80.

Internal configurations in above-mentioned tube portion 78 has S. A. 73, and this S. A. 73 is being supported with respect to above-mentioned S. A. shell 70 and yarn reservoir 71 counterrotating modes.Between this S. A. 73 and above-mentioned tube portion 78, be assembled with servomotor (yarn holds and stays drive division) 55, S. A. 73 is just being changeed and reverse.At the center of this S. A. 73, be formed with the yarn path 74 of axis hole shape.

At an end (with the end of above-mentioned entrance hole 80 opposition sides) of this S. A. 73, be fixed with and form cylindraceous holding and stay guide arm (winding mechanism) 75.This holds and stays guide arm 75 to constitute, and upwards to extend diametrically through the mode in the gap between S. A. shell 70 (blade of a sword portion 79) and the back plate 81 to slight inclination, the part of its top end part leans out than S. A. shell 70 slightly.This holds and stays guide arm 75 to constitute with S. A. 73 to rotate integratedly.Holding the inside of staying guide arm 75 is connected with above-mentioned yarn path 74.

In above structure; Be imported into the yarn 20 in the S. A. shell 70 from the entrance hole 80 of yarn guide portion 72; Warp yarn path 74 and hold the inside of staying guide arm 75 and hold from this and stay the top of guide arm 75 to be discharged from; Thus, above-mentioned yarn 20 is induced to the lateral parts of above-mentioned yarn reservoir 71.Therefore, when driving above-mentioned servomotor 55 to positive dirction, hold and stay guide arm 75 and S. A. 73 together to rotate, yarn 20 is winding on the above-mentioned lateral parts thus.When reservoir 61 makes yarn 20 be back to upstream side; With the state of servomotor 55 as for neutral (can rotate freely); Downstream yarn guiding tube 26 thus, leads to upstream side with yarn 20 attracting to have caught rotation downwards under the state of downstream line end.At this moment, be accompanied by drawing, holding and stay guide arm 75 and S. A. 73 1 to draw the direction rotation of yarn in the same way of yarn 20, servomotor 55 is with respect to the driving direction, the contrarotation round about that yarn 20 are wound up on the yarn reservoir 71.

On above-mentioned yarn reservoir 71 by each of the rod unit 82 of a plurality of configurations, with along with from the end of back plate 81 sides to the end of adapter plate 83 sides near and dispose to the interior side direction bevelled mode of yarn reservoir 71.Owing on yarn 20, given certain force of strain through above-mentioned first tensioner 41, thereby the inclination through above-mentioned rod unit 82, the yarn that is wound onto on the yarn reservoir 71 is mobile naturally with the mode of sliding to the top.Therefore; When yarn 20 holds when staying guide arm 75 by continuous reeling through above-mentioned; Because the yarn that is winding on the above-mentioned sloping portion moves to the top gradually, so yarn 20 holds with the state of proper alignment curl and stays on the above-mentioned lateral parts that is made up of rod unit 82.

In this embodiment, owing to hold and stay drive division, used servomotor 55, thereby the urgency that can critically hold the rotation of staying guide arm 75 is stopped or acceleration and deceleration etc. as holding the yarn that stays guide arm 75.Thus; Can correctly control with yarn 20 to supply length and opportunity thereof under the situation that yarn reservoir 71 is supplied with, make yarn 20 upstream return length and opportunity thereof etc. under the side situation about returning from yarn reservoir 71, can carry out various operations more swimmingly.

As shown in Figure 1, winder unit 10 has first of the top that is configured in yarn reservoir 71 and holds and hand down to posterity sensor 76 and hold with second of the bottom that is configured in yarn reservoir 71 and hand down to posterity sensor 77.These two are held and hand down to posterity sensor (yarn holds allowance testing agency) 76,77 and be made up of optical pickocff of non-contact type etc., are connected electrically in respectively in the unit controls portion 50.

First holds and hands down to posterity sensor 76 and be configured in the upper end side of yarn reservoir 71 with the mode of the yarn that can detect the upper end side that is wound onto the rod unit 82 that constitutes yarn reservoir 71, detects the maximum of reservoir 61 and holds the state that stays.Second holds and hands down to posterity sensor 77 and be configured in the downstream of yarn reservoir 71 with the mode of the yarn that can detect the lower end side that is wound onto rod unit 82, and the yarn that detects reservoir 61 holds and stays deficiency.Unit controls portion 50 hands down to posterity sensor 76 and second and holds the yarn detection signal of handing down to posterity sensor 77 according to holding from first, and the rotative speed of servomotor 55 (to the feed speed of the yarn 20 of yarn reservoir 71) is controlled.Thus, can hold allowance to the yarn of reservoir 61 and regulate, it is excessive or not enough that it can not occurred.

In addition; In reservoir 61; Yarn 20 be wound up on the yarn reservoir 71 speed (in other words; Yarn feeding speed to yarn reservoir 71) be controlled so as to, in moment of coiling of beginning yarn, the yarn winding speed of the package 30 that increases with the time that is accompanied by equates or is faster than above-mentioned yarn winding speed.Then; When begin through specified time from coiling, necessary amount of thread is held and is stayed 61 last times of reservoir when connecing the yarn operation; Control and make and yarn to be wound up on the yarn reservoir 71, keep and hold the amount of thread of staying on the reservoir 61 with the speed that equates with the yarn winding speed of package 30.Wherein, So-called " when connecing the yarn operation necessary amount of thread ", be carried out for the device of splicer of stating after carrying out 14 connect the yarn operation from reservoir 61 upstream on the basis of the side amount of thread of drawing, add for carry out with this connect the yarn operation parallel carry out to the coiling of package 30 from reservoir 61 downstream the side amount of thread of drawing obtain.On yarn reservoir 71, preferably keep the state that leaves the above yarn of this necessary amount of thread that holds all the time.

Be winding to through reel spool 24 in driven package 30 from the yarn 20 of yarn reservoir 71 unwindings of above-mentioned reservoir 61.And at this moment, the tension force that 42 pairs of yarns 20 of second tensioner are given is controlled according to winding speed through unit controls portion 50.

Next, unit controls portion 50 is described.Unit controls portion 50 constitutes the microcomputer formula that is made up of CPU and storage part etc.As shown in Figure 1, the yarn feeder 5 of unit controls portion 50 and winding unit main body 16, meet yarn portion 6, yarn defect test section 7, yarn reserving portion 8 and coiling portion 9 etc. and be connected, winding work integral body is controlled.The graphic setting apparatus of omission that is used to carry out various settings is connected unit controls portion 50.

As shown in Figure 1, unit controls portion 50 is connected electrically on the servomotor 55.Unit controls portion 50 has through the driving of servomotor 55 being controlled the length of yarn control part 90 of the length of yarn that is wound up in the package 30.This length of yarn control part (count section) 90 has the count section 91 of supply, returns count section 92, supply length operational part 93 and comparison portion 94 as its keystone configuration.

Supply with count section 91,, under the situation of the direction rotation that yarn 20 is supplied to yarn reservoir 71, the impulse singla (drive amount) that is rotated in the forward from servomotor 55 is counted at servomotor 55, and upgraded and supply with count value.

Return count section 92, servomotor 55 to yarn 20 under the situation of the yarn reservoir 71 side direction rotation of drawing upstream, the contrarotation impulse singla (drive amount) from servomotor 55 is counted, and is upgraded and return count value.Said here " drive amount ", expression be through yarn is drawn the drive amount that servomotor 55 is driven to reversing sense to the upstream side of yarn reservoir 71.In addition, this drive amount is not limited to make the driven passively situation of servomotor 55 through drawing yarn.For example, when upstream side is drawn from yarn reservoir 71 with yarn, make servomotor 55 spontaneously under the situation of the structure of contrarotation, spontaneously the drive amount of contrarotation also is counted through returning count section 92.

Supply length operational part 93 according to supplying with count value and returning count value, (but, is removed the length of yarn that returns upstream side after supplying with once more the accumulated value that till current time point, is supplied to the length of yarn of yarn reservoir 71.Below, be called " supply with length of yarn accumulated value ") carry out computing.

Whether 94 pairs in comparison portion has held to yarn reservoir 71 sides and has stayed the yarn 20 of the length that enough makes package 30 full volumes to judge.In unit controls portion 50, through above-mentioned setting apparatus etc., to promptly setting coiling length and preestablish for making package 30 accomplish the length of yarn that to reel.Comparison portion 94 is through comparing above-mentioned supply length of yarn accumulated value and above-mentioned setting coiling length, judge hold the yarn of staying on the yarn reservoir 71 20 now when supposition and all be winding to 30 last times of package, whether this package 30 can completely roll up.Can current time point hold the coiling of the yarn of staying on the yarn reservoir 71 20 and become under the situation of full package attitude in package 30, unit controls portion 50 waits for that the yarn 20 of yarn reservoir 71 all is wound up in the package 30, and judges full volume.

The coiling of the yarn that next, the winder unit 10 of said structure is carried out describes.As initial prior operation, do not holding on the yarn reservoir 71 under the state that stays yarn, the coiling spool 22 of new sky is arranged on the reel cage 23 of winding unit main body 16.Yarn feeding spool maintaining part 60 is provided with yarn feeding spool 21, and yarn 20 is drawn and is wound up on the coiling spool 22 from this yarn feeding spool 21.

Then, when the 50 indication coiling beginnings of unit controls portion, then this unit controls portion 50 resets to zero with above-mentioned supply count value and the above-mentioned count value of returning at first.Then, unit controls portion 50 begins the driving of reservoir 61 and reel spool 24 successively.

When the servomotor 55 of reservoir 61 makes when the coiling of the yarn of yarn reservoir 71 begins, represent that the signal of the slew mode of this servomotor 55 is transfused to unit controls portion 50.Supply with count section 91 and will supply with the count value addition according to servomotor 55 every impulse singlas of exporting to positive dirction rotation predetermined angular.Soon, hold the yarn of staying on the yarn reservoir 71 20 and further led to the downstream, be winding in the package 30 that is driven by reel spool 24.

In the way of this coiling, detect under the situation of yarn defect at for example yarn clearer 15; Unit controls portion 50 cuts off yarn 20 through cutter 18; And the servomotor 55 of reservoir 61 as for neutral (freedom), is made the line end in yarn guiding tube 26 seizure downstreams, downstream.Then, through downstream yarn guiding tube 26 is rotated downwards with yarn 20 upstream side draw.Consequently, the yarn 20 of reservoir 61 (yarn reservoir 71) holds allowance and can reduce.It is every to opposite spin (by the driving) impulse singla that predetermined angular is exported according to servomotor 55 to return count section 92, will return the count value addition.

From the yarn 20 of yarn reservoir 71 side unwinding upstream, be directed to device of splicer 14 through downstream yarn guiding tube 26, yarn defect part is excised, and connects yarn with the yarn 20 of yarn feeding spool 21 sides.In addition, the details of the control when detecting the yarn defect is explained hereinafter.

Yarn that yarn detector 37 detects yarn feeding spool 21 in the coiling by the situation of all unwindings under, unit controls portion 50 with the servomotor 55 of reservoir 61 as for neutral (freedom), through downstream yarn guiding tube 26 with yarn 20 upstream side draw.When returning count section 92 and detecting the yarn defect likewise, every according to servomotor 55 to opposite spin (by the driving) impulse singla that predetermined angular is exported, will return the count value addition.Led to device of splicer 14 from the yarn 20 of yarn reservoir 71 side unwinding upstream by downstream yarn guiding tube 26, connect yarn with the yarn 20 that newly is arranged on the yarn feeding spool 21 on the yarn feeding spool maintaining part 60.The details of the control when changing about the yarn feeding spool in addition, is explained hereinafter.

Supply length operational part 93 deducts from supply with count value and returns count value, and this result multiply by the constant of regulation, thus, calculates the accumulated value (above-mentioned supply length of yarn accumulated value) that is supplied to the length of yarn of yarn reservoir 71 till the current time point.At this, be supplied to the yarn 20 of yarn reservoir 71, the short of upstream side that led to, it is winding in the package 30 all.Therefore, the supply length of yarn accumulated value at current time point is equivalent on the length that is winding in the package 30, adds the length of the yarn that will be reeled the foreseeable future and the value that obtains.

The supply length of yarn accumulated value that comparison portion 94 will obtain through supply length operational part 93 and the setting coiling length of regulation compare.If more than the setting coiling length of above-mentioned supply length of yarn accumulated value for regulation,, thereby stop the driving of servomotor 55 then owing to do not need further to carry out the supply of yarn 20 to yarn reservoir 71.Then, unit controls portion 50 continues the driving of reel spool 24, all is wound up in the package 30 until holding the yarn of staying on the yarn reservoir 71 20.Then, wait and carry out doffing operation that the package 30 of full volume is taken off from reel cage 23 through use omitting graphic doffer.

Unit controls portion 50 controls servomotor 55 as above-mentioned, thus, regulate and hold the length of yarn of staying on the yarn reservoir 71, and control finally is wound onto the length of yarn in the package 30.At this, as stated, stay (supply) to the holding of yarn 20 of yarn reservoir 71, be to carry out through making to hold on the lateral parts that stays guide arm 75 to rotate, yarn 20 is wound up into yarn reservoir 71.The diameter of yarn winding part that therefore, can be through holding the anglec of rotation of staying guide arm 75 and yarn reservoir 71 correctly and easily calculates the length of holding the yarn that stays.

In length of yarn control part 90, be not the coiling length in the direct calculating coiling portion 9, but the supply length of yarn accumulated value on the yarn reserving portion 8 of its last stage is calculated.Therefore, can be that the influence of the error of reason is got rid of with the slip of the package 30 that above-mentioned Interference Control caused etc., with the winding work, can correctly judge the yarn of the specified length of in package 30, whether having reeled.

Producing yarn 20 with yarn reservoir 71 sides under the situation of necessity that device of splicer 14 is drawn for connecing the yarn operation, can critically calculate it and draw length through the angle (number of times) of servomotor 55 contrarotations is counted.Particularly, from yarn reservoir 71 upstream side return the length of the yarn of (drawing), the diameter of yarn winding part that can be through holding the contrarotation angle of staying guide arm 75 and yarn reservoir 71 and correctly and easily calculating.Therefore, during the judgement of the yarn of the specified length of on carrying out package 30, whether having reeled, can correctly consider to occur in the influence that connects the yarn operation in the winding process of yarn 20.

The winder unit 10 of this embodiment, owing to be on the yarn reservoir 71 of yarn reserving portion 8, to hold the structure of staying certain length of yarn, thereby the supply length of yarn accumulated value on the yarn reserving portion 8 can be directly as being wound on the length of yarn in the package 30.But, with respect to supplying with the length of yarn accumulated value, when the coiling of having considered package 30 begins hold the coiling completion of allowance and package 30 time the allowance of holding carry out computing, thus, can easily calculate the length of yarn that in fact is wound onto in the package 30.

Control when next, yarn clearer 15 being detected the yarn defect describes.In a single day yarn clearer 15 detects the yarn defect through the supervision of yarn rugosity, just unit controls portion 50 is sent yarn defect detection signals.According to this yarn defect detection signal, said units control part 50 makes the servomotor 55 of reservoir 61 stop, making to hold and stay the rotation of guide arm 75 to stop.And unit controls portion 50 drives cutter 18 yarn 20 is cut off.Thus, the yarn that is positioned at the place of incision downstream stops below the entrance hole 80 of reservoir 61.In addition, above-mentioned yarn 20 is if stop at the below of the entrance hole 80 of reservoir, also can with hold the rotation of staying guide arm 75 and stop to control and side by side carry out the control yarn 20 cut off by cutter 18.

Unit controls portion 50 can calculate the length of yarn that this has the part of yarn defect according to above-mentioned angle (number of times) from the time point that stays guide arm 75 to detect the yarn defect from yarn clearer 15 to the positive dirction rotation that hold.That is, to from receive from the detection signal of yarn clearer 15 the time light, be not detected to defective till the impulse singla that is rotated in the forward count, calculate the length of yarn of yarn defect part according to this count value.

Then, unit controls portion 50 attracts to catch through the downstream yarn that 26 pairs of downstream yarn guiding tubes are positioned at entrance hole 80 belows of reservoir 61, makes downstream yarn guiding tube 26 turn to the guide position of the below of device of splicer 14.Thus, will have yarn defect yarn 20 partly through downstream yarn guiding tube 26 draws from yarn reservoir 71.Then, through returning count section 92, will return the count value addition according to the impulse singla of the servomotor that reverses because of drawing of yarn 20 55.At this moment, will have length of yarn after the length addition necessary of the length of yarn of yarn defect part from 71 unwindings of yarn reservoir and lead to upstream side with connecing the yarn operation.Connect the necessary length of yarn operation, can adopt according to the position relation of reservoir 61 and device of splicer 14 etc. and predefined value.

Unit controls portion 50 attracts to catch the upstream side yarn through upstream side yarn guiding tube 25, makes upstream side yarn guiding tube 25 turn to the guide position of the top of device of splicer 14.When the line end in the line end of upstream side and downstream being guided to device of splicer 14, begin to connect the yarn operation through device of splicer 14 through upstream side yarn guiding tube 25 and downstream yarn guiding tube 26.The cutter of thread end through device of splicer 14 that comprises the downstream yarn of yarn defect is cut off, and is removed.

Owing to above-mentioned connect yarn operation and parallel the carrying out of winding work, thereby reel spool 24 is stopped and reversally the yarn defect being removed to the yarn 20 of package 30.When connecing yarn operation completion, servomotor 55 beginnings are just changeed, and begin the supply to the yarn of reservoir 61 once more.Thus, begin to supply with the renewal of count value once more.Supply length operational part 93 is considered to supply with count value and return count value, and the length of yarn accumulated value is supplied with in computing at any time.

Control during next, to replacing yarn feeding spool 21 describes.When above-mentioned yarn detector 37 detected the yarn of supplying with from yarn feeding spool 21 and used up, this yarn detector 37 sent no yarn detection signal to unit controls portion 50.Receive the unit controls portion 50 of this no yarn detection signal, the supply to the yarn of reservoir 61 is stopped.

Then, unit controls portion 50 places neutrality (freedom) with servomotor 55, controls, make the yarn that will connect the necessary length of yarn operation through downstream yarn guiding tube 26 from reservoir 61 upstream side draw.This connects the necessary length of yarn operation, with comprise with the mode of removed yarn in connecing the yarn operation, to from reservoir 61 to device of splicer 14 position relation etc. consider and preestablish.Then, because yarn 20 is led to upstream side thereby servomotor 55 counter-rotatings, return count section 92 and will return the count value addition according to the impulse singla of the counter-rotating of expression servomotor 55.

Become empty yarn feeding spool 21 and be discharged from, this yarn feeding spool maintaining part 60 is supplied with new yarn feeding spool 21 from yarn feeding spool maintaining part 60.Then; With the situation that detects the yarn defect likewise; Device of splicer 14 is caught and led to the downstream yarn of reservoir 61 sides by downstream yarn guiding tube 26, and device of splicer 14 is caught and led to the upstream side yarn of the yarn feeding spool 21 of making a fresh start by upstream side yarn guiding tube 25.Then, after having carried out connecing yarn with 14 pairs of downstream yarns of device of splicer and upstream side yarn, control servomotor 55 makes to hold and stays guide arm 75 to hold the direction of staying to yarn 20 to rotate once more.Thus, begin to supply with the renewal of count value once more.93 pairs of supply length operational parts are supplied with count value and are returned count value and consider, the length of yarn accumulated value is supplied with in computing at any time.

Wherein, preferably at least just accomplish connect the yarn operation after, will be controlled to be bigger to the feed speed of the yarn 20 of yarn reservoir 71 than the winding speed of package 30.Thus, the allowance of holding that connects the yarn reservoir 71 that reduces in the yarn operation is recovered rapidly.

As above-mentioned, the winder unit 10 of this embodiment constitutes and can the yarn of specified length be wound up in the package 30.Winder unit 10 has yarn reservoir 71, servomotor 55, length of yarn control part 90.Yarn 20 before 71 pairs of yarn reservoir are wound up in the package 30 holds and stays.Servomotor 55 is driven for supplying with yarn 20 to yarn reservoir 71.The impulse singla that is rotated in the forward of 90 pairs of servomotors 55 of length of yarn control part is counted.And, can calculate the length of yarn that is winding in the above-mentioned package according to the count value that is rotated in the forward impulse singla.

Thus, count, can measure the length of yarn that is wound up in the package 30 in the stage before reality is wound up into yarn in this package 30 through the impulse singla that is rotated in the forward to servomotor 55.Therefore, even as this embodiment, because of in winding work, carrying out under the situation that to slide can appear in Interference Control package 30, also can not receive the influence of this slip, critically calculate the length of yarn that is wound up in the package 30.Consequently; Can correctly make the length of yarn of each package 30 consistent; Therefore; Under the situation that the yarn 20 with this package 30 uses as warp in for example as the warping process of subsequent handling, can reduce the useless yarn that goes out of use as the inconsistent part of length of yarn, the production efficiency of a series of operation is improved.

The winder unit 10 of this embodiment has for connecing the device of splicer 14 that the yarn operation is configured in the upstream side of yarn reservoir 71.During the operations of length of yarn control part 90 butt joint yarn from yarn reservoir 71 the contrarotation impulse singla of the servomotor 55 when upstream side is drawn with yarn count.Then; Connect the yarn operation and carry out up to above-mentioned; To for supply with being rotated in the forward supply count value that pulse count signal obtains and considering of yarns 21 driven servomotors 55 to yarn reservoir 71, calculate the length of yarn that is winding in the package 30 for carrying out the count value of returning that above-mentioned contrarotation pulse count signal when connecing the yarn operation upstream side being drawn with yarn from yarn reservoir 71 obtains.

Thus, the contrarotation impulse singla of servomotor 55 is counted during through butt joint yarn operation, can correctly calculate from yarn reservoir 71 length of yarn that returns of side upstream.Because the length of yarn to critically calculating is like this considered, thereby can more correctly be calculated the length of yarn that is wound up in the package 30.

The winder unit 10 of this embodiment has the yarn feeding spool maintaining part 60 that can change and be provided with the yarn feeding spool 21 that is used to supply with the yarn 20 that is wound up in the package 30.When changing yarn feeding spool 21, the contrarotation impulse singla of servomotor 55 that will be when connecing the yarn operation upstream side is drawn with the yarn of necessary length from yarn reservoir 71 is counted as returning count value.Then, this is returned count value consider, calculate the length of yarn that is winding in the package 30 with the supply count value.

Thus, can correctly calculate the yarn of yarn feeding spool 21 is engaged and the length of yarn of the package 30 that forms.

The winder unit 10 of this embodiment has the yarn clearer 15 that is used to detect the yarn defect at the upstream side of yarn reservoir 71.When length of yarn control part 90 detects the yarn defect at yarn clearer 15, calculate yarn defect length according to the count value that impulse singla counts to get that is rotated in the forward of yarn clearer 15 being carried out the servomotor 55 between yarn defect detection period.

Thus, thus can be through the forward rotational pulse signal being counted the length that correctly calculate by the detected yarn defects part of yarn clearer 15.Therefore, can correctly calculate to the yarn defect is removed necessary length of yarn.

The automatic bobbin winder of this embodiment has a plurality of above-mentioned winder units 10.

In the automatic bobbin winder of this spline structure, the deviation of the length of yarn of the package 30 that can suppress to be formed by each winder unit 10 can form the package 30 that correctly receives the fixed length management.

More than preferred implementation of the present invention is illustrated, said structure can further change as following.

The servomotor 55 of above-mentioned embodiment is the structure of controlling through unit controls portion 50, but is not limited to this structure.For example as shown in Figure 3, can also be employed in and have the servomotor control part 150 that is used to control servomotor 55, the structure that on this servomotor control part 150, has above-mentioned length of yarn control part 90 on the winder unit 10.

In the above-described embodiment, constitute according to the just commentaries on classics impulse singla of servomotor 55 and will supply with the count value addition, will return the count value addition, finally from supply with count value, deduct and return count value according to the inversion pulse signal.But, also can be altered to, at the time point of having imported the inversion pulse signal from servomotor 55, carry out subtraction to supplying with count value.

In the above-described embodiment, constitute according to based on from the signal of servomotor 55 and the supply count value of addition and return count value and come computing to supply with the length of yarn accumulated value, and with its with set coiling length and compare.But also can replace said method; When the coiling to the coiling spool of sky begins; Will with set the cooresponding value of coiling length and be redefined for suitable variable, according to from the just commentaries on classics impulse singla of servomotor 55 to this variable count down (count down).In the case, above-mentioned comparison portion compares the value of above-mentioned variable with zero.When from the yarn of yarn reservoir 71 when connecing yarn operation etc. upstream side returned; On the contrary according to from the inversion pulse signal of servomotor 55 above-mentioned variable being carried out addition counting (count up), the length of yarn that thus can the subtend upstream side returns is considered.

Although the present invention is described according to its preferred implementation; But it is conspicuous to one skilled in the art, can carrying out the improvement of multiple mode and take the various ways except that the form of above description the above invention that discloses.Therefore, cover all variation that fall into purport of the present invention and protection domain with appended claim.

Claims

1. yarn take-up device is wound up into the yarn of specified length in the package, it is characterized in that having:

Be used to hold the yarn reservoir of staying the yarn before being wound up in the said package;

Stay drive division for holding to the driven yarn of said yarn reservoir supply yarn;

Said yarn is held the count section that the drive amount of staying drive division is counted,

Calculate the length of yarn that is winding in the said package according to the count value of said drive amount.

2. yarn take-up device as claimed in claim 1 is characterized in that,

Have for connect the yarn operation be configured in said yarn reservoir upstream side connect yarn feeding device,

Said yarn when upstream side is drawn with yarn holds and stays the drive amount of drive division to count said count section from said yarn reservoir when connecing the yarn operation to said,

To supplying with count value and returning count value and consider; Calculate the length of yarn that is winding in the said package; Wherein, Said supply count value be to up to said connect the yarn operation and carry out till, hold the value that the drive amount of staying drive division counts to get for supply with the driven said yarn of yarn to said yarn reservoir, the said count value of returning is to holding the value that the drive amount of staying drive division counts to get for carrying out said said yarn when connecing the yarn operation upstream side being drawn with yarn from said yarn reservoir.

3. yarn take-up device as claimed in claim 2 is characterized in that,

Have the yarn feeding spool portion is set, this yarn feeding spool is provided with the yarn feeding spool that portion can change and be provided for supplying with the yarn that is wound up in the said package,

When changing the yarn feeding spool, will the said yarn when connecing the yarn operation upstream side is drawn with the yarn of necessary length from said yarn reservoir hold the drive amount of staying drive division and count as the above-mentioned count value of returning,

Consider that this returns count value and said supply count value, calculates the length of yarn that is winding in the said package.

4. like each described yarn take-up device of claim 1～3, it is characterized in that,

Have upstream side, be used to detect the yarn defect detector of yarn defect in said yarn reservoir,

When said yarn defect detector detects the yarn defect, hold the count value that the drive amount of staying drive division counts to get according to said yarn defect detector being detected said yarn during the yarn defect, calculate yarn defect length.

5. an automatic bobbin winder has a plurality of each described yarn take-up devices like claim 1～4.