CN102139820B - Yarn winding machine - Google Patents

Yarn winding machine Download PDF

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Publication number
CN102139820B
CN102139820B CN201110007786.6A CN201110007786A CN102139820B CN 102139820 B CN102139820 B CN 102139820B CN 201110007786 A CN201110007786 A CN 201110007786A CN 102139820 B CN102139820 B CN 102139820B
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China
Prior art keywords
yarn
mentioned
roller
spinning
lax
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CN201110007786.6A
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Chinese (zh)
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CN102139820A (en
Inventor
冈正毅
白川雅彦
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Murata Machinery Ltd
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Murata Machinery Ltd
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Priority to CN201410710885.4A priority Critical patent/CN104590944B/en
Publication of CN102139820A publication Critical patent/CN102139820A/en
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    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01HSPINNING OR TWISTING
    • D01H13/00Other common constructional features, details or accessories
    • D01H13/10Tension devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H51/00Forwarding filamentary material
    • B65H51/20Devices for temporarily storing filamentary material during forwarding, e.g. for buffer storage
    • B65H51/22Reels or cages, e.g. cylindrical, with storing and forwarding surfaces provided by rollers or bars
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00Winding, coiling, or depositing filamentary material
    • B65H54/02Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/22Automatic winding machines, i.e. machines with servicing units for automatically performing end-finding, interconnecting of successive lengths of material, controlling and fault-detecting of the running material and replacing or removing of full or empty cores
    • B65H54/26Automatic winding machines, i.e. machines with servicing units for automatically performing end-finding, interconnecting of successive lengths of material, controlling and fault-detecting of the running material and replacing or removing of full or empty cores having one or more servicing units moving along a plurality of fixed winding units
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H63/00Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B65H63/06Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to presence of irregularities in running material, e.g. for severing the material at irregularities ; Control of the correct working of the yarn cleaner
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00Handled material; Storage means
    • B65H2701/30Handled filamentary material
    • B65H2701/31Textiles threads or artificial strands of filaments

Abstract

The present invention provides a yarn winding machine. A spinning machine (1) includes a winding device (12) and a slack eliminating device (8). The slack eliminating device (8) includes a slack eliminating roller (30) and a yarn detecting sensor (34). The yarn detecting sensor (34) is a reflective photo sensor having a light emitting element (41) and a light receiving element (42). An opening provided for the light emitting element (41) has a prescribed width such that a width of an irradiated range on the slack eliminating roller (30) is substantially equal to a thickness of the yarn (16).

Description

Yarn winding apparatus
Technical field
Thereby the Yarn winding apparatus (yarnwinding machine) of the yarn formation coiling package of walking that the present invention relates to reel.
Background technology
A kind of yarn with the walking of reeling of the Yarn winding apparatus in the past forms the wind2 (winding device) of package and temporarily stockpiles the yarn accumulation device (yarn accumulating device) of the yarn of being reeled by this wind2.For example, the spinning frame (spinningmachine) that patent documentation 1 is recorded possesses spun yarn device (spinning device), wind2 (winding device), yarn clearer (yarn clearer), cutter (cutter) and yarn accumulation device (yarn accumulatingdevice) (Yarn relaxation eliminating device (yarn slack eliminating device)).The reel for yarn of sending from spun yarn device is coiled into package by wind2.Yarn clearer checked the defect of yarn before yarn is winding in package.In the time that yarn clearer is checked through yarn faults, cutter cutting continuous strand.Yarn accumulation device is configured between wind2 and cutter., yarn accumulation roller is configured in the downstream of cutter.
Yarn accumulation device has the yarn accumulation roller (the lax roller of eliminating) of circumvolution yarn and detects the sensor (circumvolution quantity sensor (wound amountsensor)) of the circumvolution amount of the yarn on yarn accumulation roller.Yarn by scheduled volume to yarn accumulation roller, is not only eliminated the tension stability of the lax but also yarn of yarn by circumvolution.Thus, in wind2, can form the package of high-quality.
[patent documentation 1] TOHKEMY 2009-242041 communique (Fig. 1, paragraph 0025)
In the time detecting yarn faults with yarn clearer and cut off yarn with cutter, the yarn unwinding from yarn accumulation roller that is wound up into the package side on yarn accumulation roller is got off, and is generally winding in package like this.But the thread segment of package side has yarn faults.The yarn strength of this thread segment is in the local reduction of yarn faults part.Therefore, in the time that this thread segment is winding in package, disconnect at yarn faults part yarn, a part of thread segment remains on yarn accumulation roller sometimes.If remain in the coiling that restarts yarn under the state on yarn accumulation roller at such thread segment, this thread segment is sent to wind2 together with the yarn transporting from upstream side, has been wound into package, and the quality of result package is low.
Although the yarn accumulation device of above-mentioned patent documentation 1 has the sensor that detects the circumvolution amount on yarn accumulation roller, this sensor just detects on yarn accumulation roller, whether circumvolution has a certain amount of above yarn., this sensor does not manage to detect the thread segment (for example 1~2 circle left and right circumvolution is considered to be worth doing to a small amount of yarn on yarn accumulation roller) that remains in the hoot on yarn accumulation roller after yarn cuts off.
Summary of the invention
Object of the present invention is exactly will provide a kind of can positively detect the Yarn winding apparatus that remains in a small amount of thread segment on yarn accumulation roller after yarn cuts off.
According to the solution of the present invention, Yarn winding apparatus possesses wind2, yarn defect detecting device, shutoff device and yarn accumulation device.Wind2 reel walking yarn and form package.Yarn defect detecting device detects the defect of the yarn of being reeled by above-mentioned wind2.Shutoff device is cutting continuous strand in the time yarn faults being detected with above-mentioned yarn defect detecting device.Yarn accumulation device is configured between above-mentioned wind2 and above-mentioned shutoff device, temporarily stockpiles the yarn of being reeled by above-mentioned wind2.Above-mentioned yarn accumulation device has yarn accumulation roller and yarn detecting sensor.The rotation of yarn accumulation roller freely forms, yarn is wound up on its surface.Yarn detecting sensor is the reflective photoelectric sensor that possesses luminous element and photo detector.Yarn detecting sensor detects the surperficial yarn of above-mentioned yarn accumulation roller.On the luminous element of above-mentioned yarn detecting sensor, be provided with the opening (aperture) of restriction to the range of exposures of above-mentioned yarn accumulation roller.Above-mentioned opening has the width of above-mentioned range of exposures that makes on above-mentioned yarn accumulation roller and the roughly equal predetermined width of the thickness of yarn.
The light irradiating to yarn accumulation roller from the luminous element of yarn detecting sensor is at the surface reflection of yarn accumulation roller.The variation of the photo detector detection of reflected light quantity of yarn detecting sensor.Thus, on the surface of yarn detecting sensor detection yarn accumulation roller, whether there is yarn.
If the irradiated area of the light from luminous element to yarn accumulation roller is large, even the surface of yarn accumulation roller exists a small amount of thread segment when yarn cuts off, the variation of the reflection light quantity being caused by this thread segment is also little.Result is difficult to precision and detects well a small amount of like this thread segment.Therefore, in the 1st scheme of the invention, on the luminous element of yarn detecting sensor, be provided with the opening of restriction to the range of exposures of yarn accumulation roller.The width of this opening makes the width of the range of exposures on yarn accumulation roller and the thickness of yarn set predetermined width roughly equally.So, because the width of the range of exposures on yarn accumulation roller is limited in the degree of the thickness of yarn, even if the thread segment therefore remaining on yarn accumulation roller is a small amount of, the variation of the reflection light quantity being received by photo detector also becomes greatly, can positively detect a small amount of thread segment.
In above-mentioned Yarn winding apparatus, above-mentioned opening is formed as long slot-shaped along a direction.The width of the short side direction of this opening is above-mentioned preset width.
The opening shape that also can make the setting of luminous element side is point-like (circle).But now aperture area (to the range of exposures on yarn accumulation roller) becomes very little, in order in fact to detect yarn, yarn detecting sensor requires high setting accuracy.And, also exist the thread segment that remains in yarn accumulation roller surface to be difficult to enter the problem in range of exposures.The present invention, by adopting the slot-shaped opening about a direction with length to a certain degree, does not need point-like opening high setting accuracy like that, and yarn detecting sensor can be easily installed.
In above-mentioned Yarn winding apparatus, the long side direction that is formed slot-shaped above-mentioned opening is parallel with the circumferencial direction of above-mentioned yarn accumulation roller.In the winding process of package, be wound up into yarn on yarn accumulation roller and be with the circumferencial direction almost parallel of yarn accumulation roller.Therefore,, in the situation that remaining on yarn accumulation roller with thread segment after shutoff device cutting continuous strand, this thread segment is very large with the residual possibility of the state of the circumferencial direction along yarn accumulation roller.The present invention, by the long side direction of slot-shaped opening and the circumferencial direction of yarn accumulation roller are configured abreast, can more positively remain in the detection of the surperficial thread segment of yarn accumulation roller.
Above-mentioned Yarn winding apparatus possesses fluid blowing out device.Fluid blowing out device blows out fluid toward the surface of above-mentioned yarn accumulation roller after yarn is cut off by above-mentioned shutoff device.According to this structure, by blowing out fluid with fluid blowing out device toward the surface of yarn accumulation roller, can remove the surperficial thread segment that remains in yarn accumulation roller.
In above-mentioned Yarn winding apparatus, above-mentioned fluid blowing out device makes fluid fluidly blow out fluid toward above-mentioned yarn accumulation roller from the position of the surperficial irradiation position that leaves above-mentioned luminous element of above-mentioned yarn accumulation roller to above-mentioned irradiation position.Even if the position at the surperficial irradiation position that leaves luminous element (being the detection position of yarn detecting sensor) of yarn accumulation roller remains thread segment, utilize the fluid blowing out from fluid blowing out device, thread segment also moves to the detection position of yarn detecting sensor.Therefore, can positively detect the surperficial thread segment that remains in yarn accumulation roller.
Brief description of the drawings
Fig. 1 is the front view of the spinning frame of this example;
Fig. 2 is the lateral plan of a spinning unit of the spinning frame of Fig. 1;
Fig. 3 is the enlarged drawing of relaxation eliminating device (yarn accumulation device);
Fig. 4 is the figure that represents yarn detecting sensor, and Fig. 4 (a) is the cutaway view of yarn detecting sensor; Fig. 4 (b) is the B-B alignment view of Fig. 4 (a);
Fig. 5 is the figure that represents the lax relation of eliminating the thread segment on roller surface and the range of exposures of yarn detecting sensor; Fig. 5 (a) represents the large situation of A/F, and Fig. 5 (b) represents the little situation of A/F;
Fig. 6 is the block scheme that represents the control structure of spinning frame;
Fig. 7 represents that spinning when yarn faults detected stops the diagram of circuit of processing;
Fig. 8 is the diagram of circuit of joint processing;
Fig. 9 is the figure that represents the yarn detecting sensor that changes form, and Fig. 9 (a) is for being equivalent to the figure of Fig. 4 (b), and Fig. 9 (b) is for being equivalent to the figure of Fig. 5.
Detailed description of the invention
Example of the present invention is described below.As shown in Figure 1, spinning frame (spinning machine) 1 (multiple spinning units (spinningunits) 2, joint chassis (yarn splicing cart) 3, bellows (blower box) 4 and headstock (motor box) 5 that Yarn winding apparatus (yarn winding machine) possesses and establishes.
As depicted in figs. 1 and 2, each spinning unit 2 possesses drafting assembly (draft device) 6, spinning apparatus (spinning device) 7, cutter (cutter) 10 (shutoff device (cutting device)), yarn clearer (yarn clearer) 11 (yarn defect detecting device (yarn defect detecting device)), relaxation eliminating device (slack eliminating device) 8 (yarn accumulation device (yarn accumulatingdevice)), and wind2 (winding device) 12 etc.In addition, in the following description, the upstream and downstream on yarn direction of travel when so-called " upstream " and " downstream " refers to spinning.
Drafting assembly 6 is arranged near the upper end of case 13 of spinning frame 1 main body.Drafted device 6 drawing-offs of sliver 14 that are sent to drafting assembly 6 become fibrous bundle 15.Fibrous bundle 15, by being spinned on spinning apparatus 7, generates spinning 16.Spinning 16 is reeled in the wind2 12 in downstream, forms package 17.
Drafting assembly 6 is made up of the rear roller 22 configuring successively along the direction of travel of sliver 14 (fibrous bundle 15), the 3rd roller 23, the intermediate calender rolls 25 of shelving tengential belt 24 and preliminary roller 26 these 4 rollers.Tengential belt 24 is erected on intermediate calender rolls 25 and tension rail (tenser bar) 27.To tension rail 27 application of forces, give tengential belt 24 predetermined tension force by the direction to leaving intermediate calender rolls 25.
About the detailed structure of spinning apparatus 7 does not illustrate, this example adopts and utilizes turn air-flow to give the air type spinning apparatus of sth. made by twisting, generation spinning 16 to fibrous bundle 15.
In the downstream of spinning apparatus 7, be provided with cutter 10 and yarn clearer 11.Yarn clearer 11 adopts the thickness of the spinning 16 that monitors walking, detects the spun yarn part of spinning 16 or the structure of rove part (yarn faults).Yarn clearer 11, in the situation that yarn faults being detected, sends to unit controls portion 21 (with reference to Fig. 6) by yarn faults detection signal.One receives this yarn faults detection signal, and unit controls portion 21 makes cutter 10 move immediately, cuts off spinning 16.
Between cutter 10 and wind2 12, be provided with relaxation eliminating device (yarn accumulation device) 8.Relaxation eliminating device 8 has the lax roller 30 (yarn accumulation roller) of eliminating.Relaxation eliminating device 8, by the spinning being generated by spinning apparatus 7 16 of scheduled volume being wound up into lax elimination on roller 30, temporarily stockpiling spinning 16 and adjusts yarn tension.And, relaxation eliminating device 8 also have by rotarily actuate be on one's own initiative wound with spinning 16 lax elimination roller 30 will spinning 16 from spinning apparatus 7 function that layback goes out downstream.The detailed structure of relaxation eliminating device 8 illustrates after a while.
As shown in Figure 1, wind2 12 possesses winding drum 18, rotates the reel cage 19 that freely supports bobbin.Winding drum 18 by with the state of the Surface Contact of bobbin (or being wound up into the layer on bobbin) under rotate, bobbin rotation is wound up into the spinning of walking 16 on bobbin, form package 17.
As shown in Figures 1 and 2, joint chassis 3 possesses piecing devices (yarn splicing device) 92, suction pipe (suction pipe) 93 and suction nozzle (suction mouth) 94.As shown in Figure 1, on the guide rail 91 that joint chassis 3 arranges on the case 13 of spinning frame 1 main body, arrange to walking.In the time there is broken yarn or yarn cut-out in certain spinning unit 2,3 walkings of joint chassis, to this spinning unit 2, stop.Suction pipe 93 rotation along the vertical direction centered by axle on one side, the yarn end of the spinning 16 that seizure is discharged from spinning apparatus 7 on one side, is guided to piecing devices 92.Suction nozzle 94 rotates along the vertical direction the yarn end that is freely bearing in the package 17 seizure spinning 16 wind2 12 on one side from rotation on one side centered by axle, is guided to piecing devices 92.Piecing devices 92 are by directed yarn end joint each other.In addition, suction pipe 93 and suction nozzle 94 are connected with the negative pressure source being housed in bellows 4, obtain the attractive force for attracting yarn end from negative pressure source.
Bellows 4 is configured in distolateral with respect to its orientation of multiple spinning units 2.In bellows 4, accommodate the negative pressure source forming with blowing engine or filter etc.On negative pressure source, be connected with and attract to remove in drafting assembly 6 and relaxation eliminating device 8 the yarn bits that produce or suction pipe cleaning for (cleaningsuction pipe) (diagram omission) of flocking, suction pipe 93 and the suction nozzle 94 etc. of above-mentioned joint chassis 3.
Headstock 5 is configured in the side contrary with bellows 4 with respect to multiple spinning units 2.In headstock 5, contain the preliminary roller 26 of the drafting assembly 6 that drives respectively multiple spinning units 2 and the electrical motor of intermediate calender rolls 25.On headstock 5, be provided with the body control unit 96 with control panel 151.Receiving and transmitting signal between the unit controls portion 21 of body control unit 96 and spinning unit 2, carries out action control and the status surveillance of each spinning unit 2.
Then, describe relaxation eliminating device 8 in detail.As shown in Figure 3, relaxation eliminating device 8 possesses lax roller (yarn accumulation roller) 30, repiece parts (yarn hooking member) 31, upstream thread-carrier (upstream guide) 32, downstream thread-carrier (downstream guide) 33, the yarn detecting sensor (yarn detecting sensor) 34 eliminated.
Lax elimination roller 30 is metal tubular roller.The lax support 35 of eliminating on the case 13 that roller 30 use are fixed on spinning frame 1 rotates freely and is supporting, and is rotarilyd actuate by electrical motor 36.Repiece parts 31 have the end shape that can engage with spinning 16 (hook).Repiece parts 31 are installed in the lax end of downstream side of eliminating roller 30.Repiece parts 31, by rotating with lax roller 30 one of eliminating, can be eliminated on the outer peripheral face of roller 30 to relaxing in spinning 16 circumvolutions.
As shown in Figure 3, the both ends of the lax axis direction of eliminating roller 30 are formed as becoming continuously large taper from mediad end face diameter.When spinning 16 is during from the large upstream-side-end circumvolution of the lax diameter of eliminating roller 30, due to the taper of upstream-side-end, be sent to lax downstream end one side of eliminating roller 30 by the spinning 16 of circumvolution.Thus, spinning 16 is temporarily stockpiled the central part of eliminating roller 30 lax.Then, spinning 16, from the lax taper end of downstream side unwinding of eliminating roller 30, is sent to wind2 12.
Upstream thread-carrier 32 is arranged on the lax support 35 of eliminating roller 30 of supporting, is configured in than the lax roller 30 of eliminating a little by the position of upstream side.Upstream thread-carrier 32 is suitably directed to spinning 16 on the lax outer peripheral face of eliminating roller 30.And upstream thread-carrier 32 also has concurrently and prevents that the sth. made by twisting of propagating the spinning 16 coming from spinning apparatus 7 from propagating to than the only sth. made by twisting effect of upstream thread-carrier 32 downstreams.
Downstream thread-carrier 33 is be arranged on support 35 on the same with upstream thread-carrier 32 also.Downstream thread-carrier 33 is configured in than on lax position of eliminating roller 30 downstreams.Downstream thread-carrier 33 will guide to wind2 12 from the lax spinning 16 of eliminating roller 30 unwindings.
As shown in Figure 3 and Figure 4, yarn detecting sensor 34 is for possessing the luminous element (light emitting element) 41 that is housed in respectively in housing 44a and housing 44b and the reflective photoelectric sensor (reflective photo sensor) (photo interrupter (photointerruptor)) of photo detector (light receivingelement) 42.On the face of lax elimination roller 30 sides of housing 44a, (emitting surface) is formed with (diaphragm) 40a of opening (opening) (aperture) that the light of luminous element 41 is passed through.Face (sensitive surface) in lax elimination roller 30 sides of housing 44b is upper, is formed with to allow to eliminate from lax the opening 40b that the light of incident roller 30 reflections leads to photo detector 42.Thus, from luminous element 41 by opening 40a to the light of external irradiation at the lax surface reflection of eliminating roller 30, the light after reflection is accepted by photo detector 42 by opening 40b.
Exist spinning 16 in the central part of the elimination roller 30 that relaxing as shown in Figure 4, the position that light irradiates from luminous element 41, light is encountered spinning 16 and is reflected.Now, with do not spin 16, light during directly by the surface reflection of metal lax elimination roller 30 compared with, reflectivity step-down, the light quantity of being accepted by photo detector 42 tails off.Thus, yarn detecting sensor 34 can from the variation of the light income of photo detector 42 detect spinning 16 whether circumvolution to the desired location (yarn detection position) of the lax central part outer peripheral face of eliminating roller 30, whether stockpile spinning 16 more than scheduled volume.
When the yarn faults of spinning on 16 being detected with yarn clearer 11, while having cut off spinning 16 with cutter 10, cause as following in the situation of the thread segment of residual hoot on elimination roller 30 that relaxes.Cutting off after spinning 16 with cutter 10, if the spinning 16 of package 17 sides is common yarn, gets off to be wound up into package 17 from 30 unwindings of lax elimination roller and get on.But if the thread segment of package 17 sides exists yarn faults, 16 the brute force of spinning in this yarn faults part is local to be reduced.As a result, 16 meetings of sometimes spinning are at this yarn faults part broken yarn, and a part of thread segment not being winding in package 17 has remained on lax elimination roller 30.
So, if at the lax thread segment (yarn bits) that has hoot on roller 30 of eliminating, while restarting the coiling of package 17 when carrying out joint with piecing devices 92, remain in the lax thread segment of eliminating on roller 30 and be winding in package 17 together with the spinning 16 of sending here after restarting.Thus, yarn bits are sneaked into package 17 sometimes, and the quality of package 17 is low.
Wherein, as Fig. 4 (a) in the case of lax surface of eliminating roller 30 closely circumvolution have many spinning 16 no problem.But, for example on lax surface of eliminating roller 30, only exist, the thread segment 16a (part filling with black of Fig. 4 (a)) of hoot (in the case of lax eliminated circumvolution on roller 30 degree of 1~2 circle), if the width W 1 of opening 40a is large, be difficult to positively detect a small amount of like this thread segment 16a.As shown in Fig. 5 (a), suppose that range of exposures A is that light is from the opening 40a of luminous element 41 to the lax surperficial range of exposures of eliminating roller 30.If the width W 1 of opening 40a is large, the width W 2 of range of exposures A also becomes large.As a result, the ratio that thread segment 16a accounts for range of exposures A becomes very little.The variation of the light income of the photo detector 42 now, bringing due to the existence of thread segment 16a is compared very little with total light income.Therefore,, if the width W 1 of opening 40a is large, be difficult to positively detect a small amount of thread segment 16a.
Therefore, in this example, even if the size of the opening 40a of luminous element 41 is determined being wound up into lax elimination a small amount of yarn in 1~2 circle left and right on roller 30 at the lax thread segment 16a existing on the surface of roller 30 that eliminates, also can be detected the degree of this thread segment 16a.Specifically as shown in Figure 4, opening 40a is formed as long slot-shaped along a direction.And as shown in Fig. 5 (b), the width W 2 that makes to be subject to the range of exposures A on lax elimination roller 30 that opening 40 limits and the thickness D of spinning 16 set the width W 1 of the short side direction of opening 40a roughly the samely.Therefore, as shown in Fig. 5 (b), even in the case of lax eliminate on roller 30 residual thread segment 16a be a small amount of, the such thread segment 16a of yarn detecting sensor 34 becomes large with respect to light from the shared part of range of exposures A, the thread segment 16a of opening 40a, even if also can positively detect.In addition, the light of luminous element 41 spreads slightly limit and arrives lax surface of eliminating roller 30 having passed through opening 40a back, forms range of exposures A.Therefore the width W 1 of opening 40a has than thickness D necessity of point a little of spinning 16., the pass of the thickness D of the width W 2 of the width W 1 of opening 40, range of exposures A and spinning 16 is W1 < W2 ≈ D.
In addition, if the long side direction of slot-shaped opening 40a and thread segment 16a almost parallel as the spinning 16 of detected object enter yarn quantitative change in range of exposures A many, the accuracy of detection of yarn detecting sensor 34 improves.As shown in Figure 3, in the winding process of package 17, eliminate under the state on roller 30 the circumferencial direction almost parallel of spinning 16 and lax elimination roller 30 to relaxing in spinning 16 circumvolutions.Cutting off after spinning 16 with cutter 10, in the spinning 16 of package 17 sides again at yarn faults part broken yarn in the situation that, keeping remaining in the spinning 16 of the state of the lax circumferencial direction almost parallel of eliminating roller 30 that lax to eliminate possibility on roller 30 very large.Therefore in order more positively to carry out the detection of so residual thread segment 16a, preferably make the long side direction of slot-shaped opening 40a parallel with the circumferencial direction of lax elimination roller 30.
Cutting off after spinning 16 with cutter 10, the joint chassis 3 that possesses piecing devices 92 moves to the position of lax elimination roller 30 belows of its spinning unit 2, and restarts with the spinning in drafting assembly 6 drawing-off slivers 14 (generating fibrous bundle 15) and spinning apparatus 7.And, the yarn end of the yarn end by piecing devices 92 joint package 17 1 sides and the new spinning 16 of sending from spinning apparatus 7, restart the coiling that wind2 12 carries out.
On joint chassis 3, be provided with 2 nozzles 45 and 46 (fluid blowing out device) of eliminating roller 30 blow gas towards lax.Nozzle 45 is connected with there is no the air supply source representing in figure respectively by the feed cock 47 (with reference to Fig. 6) arranging on joint chassis 3 with 46.From nozzle 45 and 46 to the lax outer peripheral face blow out air of eliminating roller 30.Nozzle 45 is to the lax taper upstream-side-end blow out air of eliminating roller 30.The blow-off direction of nozzle 45 is the lax radial direction of eliminating roller 30.Nozzle 46 is to the lax taper end of downstream side blow out air of eliminating roller 30.Nozzle 46 is eliminated the axial central lopsidedness of rotation of roller 30 with respect to the lax radial direction of eliminating roller 30 towards relaxing.
By blow out air the outer peripheral face from nozzle 45 and 46 toward lax elimination roller 30, remove the thread segment 16a that remaining in the spinning 16 on the lax outer peripheral face of eliminating roller 30.The thread segment 16a being removed from lax elimination roller 30 by the air blowing out from nozzle 45 and 46 is arranged near the lax suction pipe for cleaning (diagram omission) of eliminating roller 30 and attracts to discharge.
As shown in Figure 3, nozzle 45 and nozzle 46 clip the 34 ground configurations of yarn detecting sensor about the lax S. A. direction of eliminating roller 30.Be blown out to the lax air of eliminating roller 30 both ends from each nozzle 45 and nozzle 46 and flow at the lax outer peripheral face of eliminating roller 30 along the lax S. A. direction of eliminating roller 30, arrive the i.e. lax central part of eliminating roller 30 of irradiation position of the luminous element 41 of yarn detecting sensor 34.Therefore, even remain in the lax locational situation of eliminating irradiation positions roller 30 surfaces, that leave luminous element 41 (being the yarn detection position of yarn detecting sensor 34) at thread segment 16a, thread segment 16a is also moved to the detection position of yarn detecting sensor 34 under the effect of the air blowing out from nozzle 45 or nozzle 46.Therefore, can positively detect and remain in the lax surperficial thread segment 16a that eliminates roller 30 by yarn detecting sensor 34.
In addition, if the position about lax elimination roller 30 circumferencial directions of the top of nozzle 45 and nozzle 46 (jet-impingement portion) is identical, be blown out to the lax air of eliminating roller 30 in the lax surface conflict of eliminating roller 30 from nozzle 45 and nozzle 46 respectively, remain in the lax thread segment 16a that eliminates roller 30 surfaces and likely become and can not move along the lax S. A. direction of eliminating roller 30.Therefore, stagger mutually and configure in the top of nozzle 45 and nozzle 46 on the lax circumferencial direction of eliminating roller 30.
Then, with reference to the electrical structure of the block diagram illustrating spinning frame 1 of Fig. 6.As shown in Figure 6, the body control unit of spinning frame 1 (main control section) 96 is connected with the unit controls portion 21 of multiple spinning units 2 and the control unit 50 of joint chassis 3.Body control unit 96 carries out control and the status surveillance of spinning unit 2 and joint chassis 3.
The unit controls portion 21 of spinning unit 2 has central process unit (CPU), read-only memory (ROM) (ROM), random access memory (RAM) and the IO interface etc. as arithmetic processing apparatus.The data that the program that ROM storage CPU carries out and program are used.Temporary storaging data when RAM carries out in program.IO interface is carried out the input and output with the data of unit controls portion 21 outsides.Unit controls portion 21, except the package coiling that carries out being realized by the control of spinning apparatus 7 and wind2 12 is processed, carries out following such processing.
In spinning process, detect on the predetermined detection position of the lax central portion outer peripheral face of eliminating roller 30, whether there is spinning 16 (whether circumvolution has the spinning 16 of scheduled volume from the lax upstream-side-end of eliminating roller 30 to central part) by yarn detecting sensor 34.When eliminating 16 the circumvolution quantitative change of spinning on roller 30 and having lacked, reduce the winding speed of wind2 12 etc. when yarn detecting sensor 34 is judged as lax, always maintain a certain amount of spinning 16 and be wrapped in the lax state of eliminating on roller 30.
When yarn faults being detected in spinning in 16 with yarn clearer 11, while receiving the yarn faults detection signal from yarn clearer 11, unit controls portion 21 controls cutter 10 and cuts off spinning 16.In addition, the control unit 50 that carries out the joint chassis 3 of joint after this yarn cuts off is controlled feed cock 47 and is eliminated roller 30 blow out air to relaxing from nozzle 45 and nozzle 46.Now, have thread segment 16a at the lax remained on surface of eliminating roller 30, detect by yarn detecting sensor 34, testing result is sent to unit controls portion 21.
The a series of processing of carrying out in spinning unit 2 and joint chassis 3 in the time that above-mentioned yarn faults detects with reference to the flowchart text of Fig. 7, Fig. 8.In addition, in Fig. 7 and Fig. 8, Si (i=10,11 ...) expression number of steps.
Fig. 7 represents that spinning when yarn faults detected stops the diagram of circuit of processing.When the yarn faults of spinning 16 detected with yarn clearer 11 (in step S10: be), unit controls portion 21 controls cutter 10 and cuts off spinning 16 (step S11).Stop the spinning (step S12) that spinning apparatus 7 carries out.Whether detect during at cutting continuous strand the spinning 16 of package 17 sides at yarn faults part broken yarn by yarn detecting sensor 34, and remain a small amount of thread segment 16a (step S13) lax elimination on roller 30.In the time thread segment 16a being detected by yarn detecting sensor 34 (in step S13: be), the lamp that unit controls portion 21 uses the abnormal indication of spinning unit 2 is lighted etc., this state is informed to operator, urge removing remaining in the lax thread segment 16a (call operation person: step S14) eliminating on roller 30.On the other hand, in the time thread segment 16a not detected by yarn detecting sensor 34 (in step S13: no), body control unit 96 sends to signal the control unit 50 of joint chassis 3, joint chassis 3 is shifted to and carried out the spinning unit 2 that yarn faults detects and yarn cuts off (calling out joint chassis: step S15), carry out joint processing described later (step S20).
Fig. 8 is the diagram of circuit of joint processing.In the time that joint chassis 3 arrives the spinning unit 2 that carried out yarn cut-out, the control unit 50 of joint chassis 3 is controlled feed cock 47 and is eliminated roller 30 blow out air (step S21) to relaxing from nozzle 45 and nozzle 46.Now, be blown out to the lax air of eliminating roller 30 two ends from nozzle 45 and nozzle 46 and flow along the lax outer peripheral face of eliminating roller 30, arrive the detection position of yarn detecting sensor 34---i.e. the lax central part of eliminating roller 30.Therefore,, even remain thread segment 16a on the lax position of leaving detection position of eliminating roller 30, this thread segment 16a is also shifted into detection position.The in the situation that of thread segment 16a being detected by yarn detecting sensor 34 after above-mentioned Air blowing (in step S22: be), unit controls portion 21 such as lights at the abnormal indication lamp, this state is informed to operator, urge and remove residual thread segment 16a (call operation person: step S23).On the other hand, even if carrying out Air blowing, also can't detect by yarn detecting sensor 34 in the situation of thread segment 16a (in step S22: no), start the spinning that spinning apparatus 7 carries out, carry out joint action (step S24) with piecing devices 92 simultaneously, restart the coiling action of the package 17 that wind2 12 carries out.
The following describes the change example that has added various changes in above-mentioned example.But for the parts with the structure identical with above-mentioned example, suitably the description thereof will be omitted to add identical Reference numeral.
As shown in Figure 4, slot-shaped its long side direction of opening 40a of upper luminous element 41 sides that form of housing 44a not necessarily leave no choice but parallel with the lax circumferencial direction of eliminating roller 30 can not.For example, the long side direction of opening 40a also can be parallel with the S. A. direction of lax elimination roller 30.
The opening 40a of luminous element 41 sides is not limited to along the length of a direction slot-shaped.As shown in Figure 9, opening 40a can be also point-like (circle) opening, having and making lax width (internal diameter) W2 that eliminates the circular range of exposures A on roller 30 and roughly equal predetermined width (diameter) W1 of thickness of yarn D.Now, because range of exposures A compared with slot-shaped opening is further reduced, therefore in the accuracy of detection this point in the time detecting a small amount of thread segment 16a, more favourable than slot-shaped opening.But A is very little due to range of exposures, therefore, in fact in order to detect thread segment 16a, exist precision that necessity of yarn detecting sensor 34 is installed well.Installing in easiness this point, point-like opening is unfavorable compared with slot-shaped opening.And, if range of exposures A is too small, when with nozzle 45 and nozzle 46 blow out air, also consider that the thread segment 16a that is transferred does not enter range of exposures A.From the comprehensive judgement of these points, adopt slot-shaped opening 40a relatively good.
Although above-mentioned example is the example for spinning frame by the present invention, use object of the present invention is not limited to spinning frame, also the present invention can be used for to the Yarn winding apparatus of the fibre machinery beyond spinning frame.
Spinning frame 1 possesses wind2 12 and relaxation eliminating device 8.Wind2 12 reel walking yarn and form package.Relaxation eliminating device 8 temporarily stockpiles and is wound the yarn that device 12 is reeled.Relaxation eliminating device 8 possesses lax roller 30 and the yarn detecting sensor 34 eliminated.The lax roller 30 of eliminating rotates freely formation, and yarn is winding on its surface.Yarn detecting sensor 34 is for possessing the reflective photoelectric sensor of luminous element 41 and photo detector 42.Yarn detecting sensor 34 detects the lax yarn of eliminating roller 30 surfaces.Aperture 40a arranges on the luminous element 41 of yarn detecting sensor 34.Aperture 40a restriction is to the lax range of exposures of eliminating roller 30.Aperture 40a has makes the lax width of range of exposures on roller 30 and the roughly equal aperture width of the thickness of yarn eliminated.
Spinning frame 1 also has yarn clearer 11 and cutter 10.Yarn clearer 11 detects the defect that is wound the yarn that device 12 reels.In the time yarn faults being detected with yarn clearer 11, cutter 10 cutting continuous strands.Relaxation eliminating device 8 is configured between wind2 12 and cutter 10.
Aperture 40a is formed long slot-shaped along a direction.The width of the short side direction of aperture 40a is said aperture width.
The long side direction that is formed as slot-shaped aperture 40a is parallel with the circumferencial direction of lax elimination roller 30.
Spinning frame 1 possesses nozzle 45 and 46.Nozzle 45 and 46 is on the surface with fluid being blown out to after cutter 10 cutting continuous strands to lax elimination roller 30.Nozzle 45 and 46 makes fluid fluidly blow out fluid to the lax roller 30 of eliminating from the position of the lax surperficial irradiation position that leaves luminous element 41 of eliminating roller 30 to luminous element 41.
Luminous element 41 make the lax S. A. direction middle part of eliminating roller 30 of irradiation desired location configure.Yarn detecting sensor 34 can detect yarn and whether be wound up into the desired location of lax elimination roller 30 in wind2 12 carries out the process of coiling of package.

Claims (10)

1. a Yarn winding apparatus, the yarn that possessing reels walks forms the wind2 of package and temporarily stockpiles the yarn accumulation device of the yarn of being reeled by above-mentioned wind2; It is characterized in that,
Above-mentioned yarn accumulation device has: rotation freely forms, yarn is arrived its lip-deep yarn accumulation roller by circumvolution, and is formed, detected the yarn detecting sensor of the surperficial yarn of above-mentioned yarn accumulation roller by the reflective photoelectric sensor that possesses luminous element and photo detector;
On the luminous element of above-mentioned yarn detecting sensor, be provided with the aperture of restriction to the range of exposures of above-mentioned yarn accumulation roller, said aperture has the width of above-mentioned range of exposures that makes on above-mentioned yarn accumulation roller and the roughly equal aperture width of the thickness of yarn.
2. Yarn winding apparatus as claimed in claim 1, is characterized in that, said aperture is formed as long slot-shaped along a direction, and the width of the short side direction of this aperture is said aperture width.
3. Yarn winding apparatus as claimed in claim 1 or 2, is characterized in that, the long side direction that is formed as slot-shaped said aperture is parallel with the circumferencial direction of above-mentioned yarn accumulation roller.
4. Yarn winding apparatus as claimed in claim 1, it is characterized in that, also possess the yarn defect detecting device of the defect that detects the yarn of being reeled by above-mentioned wind2, and in the time yarn faults being detected with above-mentioned yarn defect detecting device the shutoff device of cutting continuous strand; Above-mentioned yarn accumulation device is configured between above-mentioned wind2 and above-mentioned shutoff device.
5. Yarn winding apparatus as claimed in claim 4, is characterized in that, said aperture is formed as long slot-shaped along a direction, and the width of the short side direction of this aperture is said aperture width.
6. Yarn winding apparatus as claimed in claim 5, is characterized in that, the long side direction that is formed as slot-shaped said aperture is parallel with the circumferencial direction of above-mentioned yarn accumulation roller.
7. the Yarn winding apparatus as described in any one in claim 4 to 6, is characterized in that, has the fluid blowing out device that blows out fluid after yarn is cut off by above-mentioned shutoff device toward the surface of above-mentioned yarn accumulation roller.
8. Yarn winding apparatus as claimed in claim 7, it is characterized in that, above-mentioned fluid blowing out device blows out fluid to above-mentioned yarn accumulation roller, so that fluid flows towards above-mentioned irradiation position from the position of the surperficial irradiation position that leaves above-mentioned luminous element of above-mentioned yarn accumulation roller.
9. Yarn winding apparatus as claimed in claim 1 or 2, is characterized in that, above-mentioned luminous element is configured on the desired location of the S. A. direction middle part that light shines above-mentioned yarn accumulation roller;
In the winding process of the package that above-mentioned yarn detecting sensor can be carried out at above-mentioned wind2, detect the above-mentioned desired location whether yarn has been wound up into above-mentioned yarn accumulation roller.
10. the Yarn winding apparatus as described in any one in claim 4 to 6, is characterized in that, above-mentioned luminous element is configured on the desired location of the S. A. direction middle part that light shines above-mentioned yarn accumulation roller;
In the winding process of the package that above-mentioned yarn detecting sensor can be carried out at above-mentioned wind2, detect the above-mentioned desired location whether yarn has been wound up into above-mentioned yarn accumulation roller.
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