CN101018900B

CN101018900B - Core yarn spinning machine, method of determining presence or absence of core of core yarn, and method of servicing in core yarn spinning machine

Info

Publication number: CN101018900B
Application number: CN2005800310717A
Authority: CN
Inventors: 里见真一; 井上敬
Original assignee: Murata Machinery Ltd
Current assignee: Murata Machinery Ltd
Priority date: 2004-09-16
Filing date: 2005-09-05
Publication date: 2012-01-11
Anticipated expiration: 2025-09-05
Also published as: WO2006030661A1; EP1801271A1; CN101018900A; EP1801271A4; JP4529977B2; JPWO2006030661A1

Abstract

A core yarn spinning machine (1) having a spinning apparatus (9) spinning a core yarn and a winding device (12) winding up the spun core yarn (10), comprising a slab catcher (35) determining the presence or absence of the core of the core yarn (10). In the spinning apparatus (9), the spun core yarn (10) is led into the slab catcher (35) in a pre-winding time from the start of the spinning of the core yarn (10) to the start of winding of the core yarn (10) by the winding device (12). When the core yarn is led into the slab catcher, the presence of the core is explicated more than in a time after the winding of the core yarn (10) is started by the winding device (12).

Description

The heart yearn of core yarn spinning machine, cladded yarn has or not the method for servicing of determination methods and core yarn spinning machine

Technical field

The present invention relates to judge the core yarn spinning machine that has or not of heart yearn.In addition, the present invention relates to judge whether heart yearn has got into the heart yearn in the cladded yarn and had or not determination methods.

And then, the present invention relates in core yarn spinning machine, carry out certain service method.

Background technology

Disclosed core yarn spinning machine constitutes in the patent documentation 1; Carry out air spinning as the elastic filament of heart yearn with by the fibre bundle (sheath fiber) of drafting system drawing-off through the air spinning device for what supply with, make the cladded yarn of heart yearn with the structure of sheath fibers encapsulation from the elastic filament feedway.In addition, this core yarn spinning machine is provided with cladded yarn is wound as the coiler device of package and for yarn clearer (yarn MA monitoring agency) from yarn shortcomings such as the cladded yarn inspection strand send is irregular to coiler device that give.In addition, in the elastic filament feedway, possess the elastic filament detecting sensor that detects elastic filament, under the situation that does not have elastic filament, the spinning operation is stopped automatically in this sensor.

Patent documentation 1: TOHKEMY 2002-363834 communique (Fig. 4 is about elastic filament detecting sensor (label 32), paragraph 0058)

In above-mentioned patent documentation 1; Because the elastic filament detecting sensor is equipped in the upstream side of air spinning device, so although consider to have the elastic filament sensor does not enter into the inside of sheath fiber in the downstream of air spinning device to this elastic filament of elastic filament situation.For example, have when the spinning of cladded yarn begins elastic filament through the side of air spinning device be inhaled in the suction nozzle with battery unit, only the yarn of sheath fiber is by from the spun situation of air spinning device.If the yarn of so no heart yearn is wound as package, then can cause the remarkable decline of package quality.

Summary of the invention

The present invention makes in view of above situation, and its objective is provides a kind of heart yearn that can detect reliably whether to enter into the detection method of cladded yarn and the core yarn spinning machine that can carry out such detection.

In addition, another object of the present invention provides a kind of mechanism that can when shortening the work dwell time of fibre machinery as much as possible, carry out such detection.

The problem that the present invention will solve is then explained with the scheme and the effect thereof that solve this problem as stated.

According to the 1st technical scheme of the present invention, provide a kind of as following the core yarn spinning machine of formation.The coiler device that promptly possesses the spinning apparatus of spinning cladded yarn and the cladded yarn after spinning of reeling.The heart yearn that has or not that possesses the heart yearn of judging above-mentioned cladded yarn has or not decision mechanism; During in above-mentioned spinning apparatus before the coiling of spinning till the coiling that begins cladded yarn through above-mentioned coiler device of beginning cladded yarn, the cladded yarn after the spinning is imported to above-mentioned heart yearn have or not in the decision mechanism; In addition, with behind the cladded yarn that begins by above-mentioned coiler device to reel during compare, cladded yarn is imported to above-mentioned heart yearn have or not in the decision mechanism during, the existence of the heart yearn of cladded yarn is obviously changed; The heart yearn of above-mentioned cladded yarn is an elastic filament; Above-mentioned heart yearn have or not decision mechanism be according to the thickness of cladded yarn or its change than the big mechanism that is judged as of threshold value with heart yearn, obviousization of the existence of above-mentioned heart yearn through with after above-mentioned coiling begins during compare the tension force that weakens above-mentioned cladded yarn or above-mentioned cladded yarn relaxed and carry out.

Thus, can judge having or not of heart yearn, can prevent the yarn of no heart yearn is wound up in the package in the stage before the coiling cladded yarn.Thereby, can form the coiling package of better quality.

In addition; During before this coiling, particularly be behind broken yarn, will in spinning apparatus, begin to spin before the initiating terminal of cladded yarn of the side joint during with joint that the end of cladded yarn on being wound on coiler device engages during, or the full volume package after will reeling by coiler device be replaced by coiling pipe, the yarn installation when yarn is installed in doffing that this coiling manages of the sky of the yarn of not reeling preceding during.When doffing, also comprise the situation of also only not carrying out yarn is installed to the operation on the coiling pipe of the sky that is installed in the coiler device through coiler device coiling yarn.

If cladded yarn is imported to heart yearn when having or not in the decision mechanism with after the coiling of coiler device begins during compare the existence of heart yearn obviously changed, then can carry out the judgement that heart yearn has or not decision mechanism more reliably.In addition, because obviousization of the existence of this heart yearn is to use the preceding cladded yarn of coiling of coiler device to carry out, can and quality be reduced by the coiler device coiling so carried out the cladded yarn of the obviousization processing of heart yearn.

Here; Obviousization of the existence of so-called heart yearn; Being if having heart yearn then make its existence become significant and handle, for example is to make the situation of heart yearn compare the processing (the lax such processing of this elastic core wire cladded yarn of stating after being meant and for example making) that in cladded yarn, produces predetermined variation with the situation that does not have heart yearn or increase the processing of the thickness of heart yearn with respect to the ratio of the whole thickness of cladded yarn.

In above-mentioned core yarn spinning machine; Preferably; The heart yearn of above-mentioned cladded yarn is an elastic filament; Above-mentioned heart yearn have or not decision mechanism be according to the thickness of cladded yarn or its change than the big mechanism that is judged as of threshold value with heart yearn, obviousization of the existence of above-mentioned heart yearn through with after above-mentioned coiling begins during compare the tension force that weakens above-mentioned cladded yarn or above-mentioned cladded yarn relaxed and carry out.

That is, be to be rich under the situation of elastic filament of retractility at the heart yearn of cladded yarn, the normal cladded yarn with heart yearn along with the tensile force of length direction gradually heart yearn shrink, to radially expanding.Therefore, if make cladded yarn and the beginning of reeling after during compare and weaken tension force or make it lax, then under the situation of normal cladded yarn, have by heart yearn to have or not the thickness of the detected cladded yarn of decision mechanism or its change to become big tendency with heart yearn.On the other hand, under the situation of the unusual cladded yarn of no heart yearn, can't see the tendency of above-mentioned that kind.Thereby; Weaken tension force or make it lax if compare during after making cladded yarn and coiling beginning; Whether judge having or not of heart yearn greatly according to the thickness that has or not the detected cladded yarn of decision mechanism by heart yearn or its change, then can detect whether put into heart yearn in the cladded yarn reliably than predetermined value.

In above-mentioned core yarn spinning machine; Preferably; The threshold value of the yarn supervision usefulness during after the yarn MA monitoring agency during after above-mentioned heart yearn has or not the above-mentioned coiling of decision mechanism to begin, this heart yearn have or not decision mechanism and above-mentioned coiling to begin additionally has heart yearn and has or not the threshold value of judging usefulness.

Thus, can make heart yearn have or not the MA monitoring agency generalization of decision mechanism and yarn, and can utilize to carry out reliably heart yearn corresponding to each threshold value of purpose and have that it's too late yarn is kept watch on the two.

According to the 2nd technical scheme of the present invention; Provide a kind of heart yearn of cladded yarn to have or not determination methods; Having or not of the heart yearn that the judgement cladded yarn is inner, the cladded yarn of obviousization of existence of heart yearn will be imported in the test section of the thickness that detects this cladded yarn; Has heart yearn according to being judged as greatly than predetermined value by the thickness of the detected cladded yarn of this test section or its change; Heart yearn at above-mentioned cladded yarn has or not in the determination methods; Preferably; Heart yearn at above-mentioned cladded yarn is under the situation of elastic filament, and obviousization of the existence of above-mentioned heart yearn is to carry out through weakening the tension force of above-mentioned cladded yarn or above-mentioned cladded yarn is relaxed with common compared.

Promptly; If make cladded yarn and common compared that the existence of heart yearn is obviously changed; Then under the situation of normal cladded yarn, compare with the situation of the unusual cladded yarn that does not have heart yearn with heart yearn, big by thickness or its change change of the detected cladded yarn of test section.Thereby, if according to by the thickness of the detected cladded yarn of test section or its change whether than the having or not of the predetermined big judgement heart yearn of value, then can judge in cladded yarn, whether to have put into heart yearn reliably.

That is, be to be rich under the situation of elastic filament of retractility at the heart yearn of cladded yarn, the normal cladded yarn with heart yearn along with the tensile force of length direction gradually heart yearn shrink, to radially expanding.Therefore, if make cladded yarn and common compared weaken tension force or lax, then under the situation of normal cladded yarn, there are thickness or its change to become big tendency by the detected cladded yarn of test section with heart yearn.On the other hand, under the situation of the unusual cladded yarn of no heart yearn, can't see the tendency of above-mentioned that kind.Thereby; Weaken tension force or make it lax if compare during after making cladded yarn and coiling beginning; According to whether judging having or not of heart yearn greatly, then can detect whether put into heart yearn in the cladded yarn reliably than predetermined value by thickness or its change of the detected cladded yarn of test section.

According to the 3rd technical scheme of the present invention; A kind of method of servicing of core yarn spinning machine is provided; The heart yearn that has or not that when this service, will make the cladded yarn of obviousization of existence of heart yearn direct into the heart yearn of judging cladded yarn than common state has or not in the decision mechanism; The heart yearn of above-mentioned cladded yarn is an elastic filament; Above-mentioned heart yearn have or not decision mechanism be according to the thickness of cladded yarn or its change than the big mechanism that is judged as of threshold value with heart yearn, obviousization of existence of above-mentioned heart yearn is to carry out through weakening the tension force of above-mentioned cladded yarn or above-mentioned cladded yarn is relaxed with above-mentioned common compared.

Thus; In certain service operation of core yarn spinning machine; For example be accompanied by in the joint operation of spinning beginning operation, doffing operation is medium; Have or not decision mechanism to judge having or not of heart yearn through heart yearn, can not increase the coiling dwell time of spinning machine and detect the no heart yearn of cladded yarn reliably and prevent that the quality of package from reducing by cladded yarn.

In the method for servicing of above-mentioned core yarn spinning machine, preferably, cladded yarn to heart yearn have or not the guiding of decision mechanism be to reel for yarn around this service moment before finishing carry out.

Thus, the heart yearn of in the time of service, accomplishing cladded yarn easily has or not judgement, can suppress the increase of the coiling dwell time of spinning machine.

In the method for servicing of above-mentioned core yarn spinning machine, preferably, above-mentioned heart yearn has or not the heart yearn of decision mechanism to have or not judge to be the moment before this service end to carry out.

Thus, can make the increase of the coiling dwell time of spinning machine become zero.In addition, owing to finish and moment before beginning again to reel carries out heart yearn and has or not judgement, so even having or not decision mechanism to carry out also carrying out from unusual recovery easily under the situation of judgement of no heart yearn through heart yearn in service.

According to the 4th technical scheme of the present invention, the core yarn spinning machine of following such formation is provided.That is, has the service unit that the spinning and the unit of coiling cladded yarn and being used for served said units.Be provided with: heart yearn has or not decision mechanism, judges the having or not of heart yearn of cladded yarn that makes obviousization of existence of heart yearn than common state; Guide mechanism is caught cladded yarn to the service of said units the time, and the cladded yarn that this captures is directed into above-mentioned heart yearn has or not in the decision mechanism; The heart yearn of above-mentioned cladded yarn is an elastic filament; Above-mentioned heart yearn have or not decision mechanism be according to the thickness of cladded yarn or its change than the big mechanism that is judged as of threshold value with heart yearn, obviousization of existence of above-mentioned heart yearn is to carry out through weakening the tension force of above-mentioned cladded yarn or above-mentioned cladded yarn is relaxed with above-mentioned common compared.

Thus, when serving, catch cladded yarn, can easily cladded yarn be directed into heart yearn and have or not in the decision mechanism through guide mechanism.Thereby, can in service operation, carry out the judgement that has or not of heart yearn reliably.

In above-mentioned core yarn spinning machine; Preferably; Above-mentioned heart yearn has or not decision mechanism to be located in the said units; Above-mentioned service unit is opposite to said units and disposes, and above-mentioned guide mechanism possesses the movable guiding section that cladded yarn is had or not the decision mechanism guiding to above-mentioned heart yearn in above-mentioned service unit side.

Thus, through the guiding section action, can easily cladded yarn be directed into heart yearn from service unit and have or not the decision mechanism.

In above-mentioned core yarn spinning machine, preferably, above-mentioned guiding section is kept out of the way above-mentioned service unit side when not carrying out above-mentioned service.

Thus, guiding section is kept out of the way the service unit side beyond when service, thus can avoid cladded yarn and the parts of cell side and the interference of guiding section of advancing, and carry out smooth-going coiling.

In above-mentioned core yarn spinning machine, preferably, above-mentioned guiding section through from above-mentioned keep out of the way that state begins to rotate and extend to the yarn road of cladded yarn side catch cladded yarn, direct into above-mentioned heart yearn and have or not in the decision mechanism.

Thus, can have or not decision mechanism guiding cladded yarn to heart yearn reliably.In addition, under the state of keeping out of the way before rotation, elongation, can make guiding section become the state of compact conformation, can make the service unit miniaturization.

In above-mentioned core yarn spinning machine, preferably, above-mentioned heart yearn has or not decision mechanism to be also used as to be located at the yarn shortcoming testing agency of said units side.

Thus, do not need to be provided with especially heart yearn and have or not decision mechanism, make structure simplicity more.

In above-mentioned core yarn spinning machine, preferably, and be provided with a plurality of unit, above-mentioned service unit can constitute between these a plurality of unit with advancing.

Thus, can be responsible for a plurality of unit through 1 service unit, institute is so that structure simplicity more can reduce manufacturing cost.

Description of drawings

Fig. 1 is the front view of the core yarn spinning machine of a relevant embodiment of the present invention.

Fig. 2 is a side view of representing this core yarn spinning machine with the longitudinal section.

Fig. 3 be this core yarn spinning machine have or not the block diagram of the yarn clearer of decision mechanism performance function as heart yearn.

Fig. 4 is the curve map of difference of output voltage of the light accepting part that has or not the yarn clearer that brings of the inner heart yearn of expression cladded yarn.

Fig. 5 is the front view of the core yarn spinning machine of relevant second embodiment of the present invention.

Fig. 6 is a side view of representing this core yarn spinning machine with the longitudinal section.

Fig. 7 be this core yarn spinning machine have or not the block diagram of the yarn clearer of decision mechanism performance function as heart yearn.

Fig. 8 be illustrated in the action of chassis that begins in this core yarn spinning machine to doff, completely the side view of the situation of cladded yarn is pulled down and is attracted to catch through suction tube in package.

Fig. 9 be expression from the state of Fig. 8 with cladded yarn pull out downwards, and the side view of the situation this cladded yarn guided to yarn clearer through guiding section.

Figure 10 is the block diagram of the yarn clearer when having or not decision mechanism performance function as heart yearn, is the figure corresponding to Fig. 9.

Figure 11 is expression begun to doff stereogram situation, that observe from the chassis side of doffing of the guiding section after the action of doffing of chassis.

Figure 12 be expression make guiding section begin to rotate from keeping out of the way state, to the spinning unit side stretch out, through the guide plate make the yarn road near the stereogram of situation.

Figure 13 be represent to make again the air pressure cylinder elongation, with the stereogram of cladded yarn to the situation of yarn clearer guiding.

Figure 14 is that expression makes the stereogram of yarn road from the situation of guide plate disengaging.

Figure 15 is the stereogram of the situation after the yarn road guiding of expression guiding section finishes.

Label declaration

1 core yarn spinning machine

2 spinning units

3 spinning apparatus

11 Yarn Feeder Devices

12 coiler devices

22 elastic filament (heart yearn)

35 yarn clearers (yarn shortcoming detector, heart yearn has or not judgment means, heart yearn has or not decision mechanism)

43 piecing devices

44 suction tubes (catch introducing mechanism, heart yearn is obviously changed mechanism)

101 core yarn spinning machines

Unit 102 (spinning unit)

104 doffing devices (service unit, service chassis)

110 cladded yarns

122 elastic filament (heart yearn)

135 yarn clearers (heart yearn has or not decision mechanism, and heart yearn has or not judgment means, yarn shortcoming detector)

158 guiding sections

188 suction tubes (cladded yarn is caught mechanism, and heart yearn is obviously changed mechanism)

The specific embodiment

Below, specify preferred first embodiment of the present invention according to accompanying drawing.

Fig. 1 representes to possess and the core yarn spinning machine 1 of a plurality of spinning units 2 of establishing.In this spinning machine 1, be equipped with joint chassis (service unit) 3, bellows 4, prime mover case 5 of advancing and being provided with freely along the direction of spinning unit 2 arrangements.

As shown in Figure 1, each spinning unit 2 has drafting system 7, spinning apparatus 9, Yarn Feeder Device 11, coiler device 12 as main structure.Drafting system 7 is located near the upper end of housing 6 of spinning machine 1 main body, constitutes the fibre bundle of sending here from this drafting system 7 through spinning apparatus 9 spinning 8.The spun yarn (cladded yarn) 10 of discharging from spinning apparatus 9 is transmitted downwards; Via being used for detecting the defective of yarn and carrying out that yarn cuts off and yarn clearer (yarn shortcoming detector, yarn MA monitoring agency) 35 that yarn faults is partly removed; Be wound on the bobbin as the pipe of reeling through coiler device 12, form package 45.For example yarn clearer 35 is considered to have the function of the plucked defective that detects yarn or is detected the function that is blended into the foreign matter in the spun yarn 10 or have these functions fully concurrently.

Drafting system 7 is as shown in Figure 2, is to be used for sliver 13 is extended and forms the device of fibre bundle 8, by back roller 14, the 3rd roller 15, shelve the intermediate calender rolls 17 of

conveyer belt

16 and 4 rollers of preliminary roller 18 constitute.

In addition; Yarn Feeder Device 11 is made up of with the niproll 20 that is set to contact with outlet roller 19 outlet roller 19 that the housing that receives spinning machine 1 main body 6 supports; In this structure; To be clipped between outlet roller 19 and the niproll 20 from the cladded yarn 10 that spinning apparatus 9 is discharged, drive outlet roller 19, cladded yarn 10 is carried to coiler device 12 sides through rotation.

Above drafting system 7, be provided with elastic filament feedway 23.Constitute, the elastic filament of supplying with from this elastic filament feedway 23 22 collaborates in fibre bundle 8 between preliminary roller 18 and the intermediate calender rolls 17,, is directed in the spinning apparatus 9 through preliminary roller 18 with fibre bundle 8.

In elastic filament feedway 23, the rotation roller 26 that contacts with the side face of elastic filament package 25 and rotate is installed and via the motor 24 that drives above-mentioned rotation roller 26 with 28 rotations for each spinning unit 2.Elastic filament package 25 rotations are supported on rotation freely freely by on the support arm 27 of pivotal support.

In said structure; Separate easypro elastic filament 22 from elastic filament package 25 and supply with to the position at the upper reaches slightly of preliminary roller 18, imported to spinning apparatus 9 with fibre bundle 8 through air suction device 30, not shown clamping cutter sweep and supply guiding tube 31 quilts.Then, through the rotary air stream that is generated by spinning apparatus 9 fibre bundle 8 is wound on the periphery of elastic filament 22, spinning out with the elastic filament that is rich in retractility is the cladded yarn 10 of heart yearn, through Yarn Feeder Device 11 further downstream transport.In addition, the circular velocity of the outlet roller 19 of Yarn Feeder Device 11 constitutes greatly than the circular velocity of above-mentioned rotation roller 26, and thus, elastic filament 22 is spinned by coiling fibre bundle 8 through spinning apparatus 9 under the state that stretches with predetermined ratio of elongation (for example 3 times).

Joint chassis 3 is as shown in Figure 1, and the track 41 that is designed on the housing 6 that is located at spinning machine 1 main body is advanced.On this joint chassis 3, possess: piecing devices 43 are made up of for example connector; Suction tube 44, pitching are located on this joint chassis 3 freely, with axle be center rotation on one side, suck the yarn end of also catching the cladded yarn 10 of discharging from spinning apparatus 9 on one side, to piecing devices 43 guidings; Suction nozzle with battery unit 46, pitching are located on the joint chassis 3 freely, with axle be center rotation on one side, the package 45 that is supported on freely on the coiler device 12 from rotation on one side attracts to catch yarn end, to piecing devices 43 guidings.

Face side at the housing 6 of spinning machine 1 is provided with yarn clearer 35 and cutter sweep 36, by the test section of the cladded yarn 10 after spinning apparatus 9 spinning through this yarn clearer 35.The thickness that yarn clearer 35 is kept watch on the cladded yarn 10 of advancing is sent yarn shortcoming detection signal under the situation of spun yarn portion that detects cladded yarn 10 and rove portion (yarn shortcoming).The controller that receives the spinning unit 2 of this signal directly makes above-mentioned cutter sweep 36 actions and cuts off cladded yarn 10, and drafting system 7, spinning apparatus 9, elastic filament feedway 23 are temporarily stopped, and joint chassis 3 is arrived before this spinning unit 2 voluntarily.Then, drive spinning apparatus 9 and elastic filament feedway 23 again, make above-mentioned joint chassis 3 carry out joint, begin spinning and coiling again.

This yarn clearer (yarn cleaner) 35 is as shown in Figure 3, in its test section 39, possesses light-projecting portion 37 that the light-emitting component by LED etc. constitutes and the light accepting part 38 that is made up of the components of photo-electric conversion.And, can be with as the result of being blocked by cladded yarn 10 and the size (area) that is formed on the shade on the light accepting part 38 is transformed to voltage signal through this light accepting part 38 from the light of light-projecting portion 37 light projectors.As the light accepting part 38 of this embodiment, the roughly proportional and components of photo-electric conversion of such characteristic that rises of the size of working voltage value and shade.

Yarn clearer controller 51 is made up of known microcomputer, possesses not shown CPU (arithmetical organ), ROM, RAM (storing mechanism), interface.In above-mentioned storing mechanism, possess suitable program,, in the inside of yarn clearer controller 51, be built with control part 56, storage part 52, comparison portion 53, light projector control part 55 etc. through above-mentioned hardware and this software.

Storage part 52 mainly is made up of RAM; Constitute; Storage be equivalent to common cladded yarn 10 thickness permissible range voltage value (allowable voltage value) scope, be the threshold value that yarn is kept watch on usefulness, and the heart yearn of stating after can additionally storing has or not the threshold value of judging usefulness.The whole action of control part 56 control, and carry out with communicating by letter of the controller of spinning unit 2 sides etc.In the inside of control part 56, constitute comparison portion 53, through this comparison portion 53 relatively from the voltage value and the above-mentioned allowable voltage value of light accepting part 38 input.

In this structure, will be input to successively from the voltage signal of light accepting part 38 in the yarn clearer controller 51, keep watch on the variation of the thickness of the cladded yarn 10 of advancing.That is, if the thickness of the cladded yarn of advancing 10 (profile thickness) change then is formed on the size change of the shade on the light accepting part 38, its become light accepting part 38 outputs voltage value change and appear.This voltage value through after 54 digital conversions of A/D converter, is input in the comparison portion 53, compares with above-mentioned allowable voltage value.If the yarn shortcoming, this yarn shortcoming that on cladded yarn 10, have rove portion and a spun yarn portion etc. are during through test section 39, then the output voltage values of light accepting part changes, and departs from the scope of allowable voltage value.The control part 57 of controller of 56 pairs of spinning units 2 of control part that is detected the yarn clearer controller 51 of this situation by comparison portion 53 sends yarn shortcoming signals.If receive this signal, then directly cutter sweep 36 is sent signal and cladded yarn 10 is cut off the requirement of the joint action of generation piecing devices 43 in spinning unit 2 sides.In addition, spinning apparatus 9, elastic filament feedway 23, drafting system 7 etc. are also stopped, interrupting reeling.Then, the control part 57 of spinning unit 2 sends to the control part 60 of joint chassis 3 with signal, makes it arrive the position of this spinning unit 2 voluntarily.If joint chassis 3 arrives the position of this spinning unit 2; Then begin the driving of spinning apparatus 9 and elastic filament feedway 23 etc. again; And the joint action that joint chassis 3 is scheduled to; The initiating terminal of cladded yarn 10 of spinning side is engaged with the end of the cladded yarn 10 of package 45 sides, carry out joint.

In addition, the driving voltage of light-projecting portion 37 can be connected with the light projector control part 55 of yarn clearer controller 51 through variable voltage source 48 changes on this variable voltage source 48.Through this structure, even having taken place, deterioration or the temperature of light-projecting portion 37 float, light projector control part 55 also can change voltage value that variable voltage source 48 imposes on light-projecting portion 37 so that it is compensated.As a result, realized the detection of stable yarn shortcoming.

Above action is the common action of the yarn clearer 35 during through coiler device 12 coiling cladded yarns 10; But in this embodiment; Yarn clearer 35 when joint (period before in other words, from the spinning of beginning cladded yarn 10 above-mentioned spinning apparatus 9 to the coiling of the coiling that begins cladded yarns 10 through above-mentioned coiler device 12) also as judging whether elastic filament 22 enters into the judgment means performance function of cladded yarn 10.Below, this structure is described.

Promptly; Fracture of wire is taking place on the cladded yarn 10 or detected the yarn shortcoming of cladded yarn 10 by yarn clearer 35 and under the situation about cladded yarn 10 being cut off by cutter sweep 36, joint chassis 3 will begin the cladded yarn joint of cladded yarn 10 and coiler device 12 sides of spinning apparatus 9 sides of spinning through piecing devices 43.In addition, in this stage, the coiling of the cladded yarn 10 that stops to carry out through coiler device 12.

Cladded yarn 10 that kind as shown in Figure 3 of in spinning apparatus 9, being spinned at this moment,, being attracted to catch by suction tube 44 are guided so that its yarn road passes through the test section 39 and the cutter sweep 36 of yarn clearer 35.As a result, carried by Yarn Feeder Device 11, after through cutter sweep 36 and light-projecting portion 37, attracted to suction tube 44 by the cladded yarn 10 that spins constantly from spinning apparatus 9.

In addition, the attraction of 44 pairs of cladded yarns 10 of suction tube is carried out through attracting stream generation source 62, and this attracts the attraction in stream generation source 62 to be set by the attraction configuration part 61 of the controller of joint chassis 3, so that it gives silk power weak slightly than Yarn Feeder Device 11.Therefore, the tension force of the cladded yarn 10 of the upstream side of the warp tension ratio Yarn Feeder Device 11 of the cladded yarn 10 between Yarn Feeder Device 11 and the suction tube 44 part is little.

Here; The cladded yarn 10 of this embodiment is reeled fibre bundle under the state that extends as the elastic filament of heart yearn 22 and is spinned making around it; So weakening tension force or do not giving fully under the state of tension force, cladded yarn 10 shrinks in the longitudinal direction, expand slightly diametrically.In addition, under the effect of the elastic force of elastic filament 22, cladded yarn 10 shrinks and presents fold (curling).Particularly; In this embodiment; Since as above-mentioned with the inhalation power of suction tube 44 set a little less than; Begin so the cladded yarn 10 between Yarn Feeder Device 11 and the suction tube 44 finishes with the joint of piecing devices 43 to compare behind the coiling of the heart yarn 10 that winding winding apparatus 12 carries out, its expansion tendency and fold tendency radially appears more doughtily again, makes as the existence of the elastic filament 22 of the heart yearn of cladded yarn 10 obviously to change.

Thereby; Under the situation of normal cladded yarn 10 of having spinned through spinning apparatus 9 with elastic filament 22; When if the cladded yarn 10 after should spinning passes through yarn clearer 35 between Yarn Feeder Device 11 and suction tube 44; The area that then is formed on the shade on the light accepting part 38 becomes big, and the output voltage of light accepting part 38 increases.Thereby expansion radially can be detected as the profile thickness in the thickness through not detecting actual cladded yarn 10 but the profile interval each other of detecting the shade of projection when radially observing.In addition, through above-mentioned fold, it is big that the change of the output voltage of light accepting part 38 (inhomogeneous) becomes.On the other hand; Under the situation of the bad cladded yarn of not putting into elastic filament 22 of having spinned from spinning apparatus 9 because of certain situation; Because the expansion tendency radially of above-mentioned that kind do not occur, so the area of its shade changes hardly, the output voltage of light accepting part 38 increases hardly.In addition, owing to also produce fold hardly, so the change of the output voltage of light accepting part 38 is also less.

Utilize this character, in yarn clearer controller 51, the store voltages that as stated heart yearn is had or not the predetermined threshold value of judging usefulness judges from the voltage value of light accepting part 38 inputs whether surpassed this threshold value through comparison portion 53 in storage part 52.As a result, if voltage value is more than the threshold value then is judged as to be the normal cladded yarn 10 of having put into elastic filament 22, if be lower than threshold value, then being judged as is the bad cladded yarn of not putting into elastic filament 22.

Being judged as is not put under the situation of bad cladded yarn of elastic filament 22, and the control part 57 of 56 pairs of spinning unit 2 sides of the control part of yarn clearer controller 51 sends no heart yearn detection signal.In the spinning unit that receives this signal 2 sides, directly bad cladded yarn is cut off the same operation that resets when carrying out again with above-mentioned broken yarn by cutter sweep 36.Can report also perhaps and stop that the operator will get rid of through handwork unusually unusual.

In order to confirm the effect of this structure; The application's inventor has carried out following experiment: normal cladded yarn that has got into for elastic filament 22 and elastic filament 22 do not have the cladded yarn (unusual cladded yarn) that gets into and have only the sheath fiber; When reeling when (reel for yarn that has begun coiler device 12 around after state) and joint (before the reel for yarn of coiler device 12 gets around the beginning; The state that attracts yarn end, yarn is stretched more weakly through suction tube 44) its detector 39 through yarn clearer 35 is advanced, check the experiment of tendency of the output voltage values of light accepting part 38.

Fig. 4 (A) is for being that the elastic filament at 40 dawn is in the result who extends to the cladded yarn of thickness that spin, Ne30 under 3.1 times the state with thickness.Voltage value during coiling on average be about 3.1V, with respect to this, when joint for about 4.1V.

On the other hand, Fig. 4 (B) for being assumed to be unusual cladded yarn only through sheath fiber (not having elastic filament) spinned, the result of the yarn of the thickness of Ne30.In the case, the voltage value the when voltage value when silk is reeled, joint does not nearly all change, about the about 3.1V of average out to.

Comparison diagram 4 (A) and Fig. 4 (B) can know, when joint, at the normal cladded yarn that elastic filament is arranged with do not have in the unusual cladded yarn of elastic filament, output voltage values produces the difference about 1V.Thereby, if threshold value is made as for example 3.6V, it is stored in the storage part 52 and uses in the judgement in comparison portion 53, can judge reliably then whether elastic filament 22 has entered into the inside of cladded yarn 10.

In this embodiment; Shown in above, constitute; The yarn clearer that has or not 35 that possesses the heart yearn (elastic filament) 22 of judging cladded yarn 10, the spinning of beginning cladded yarn 10 from above-mentioned spinning apparatus 9 before the coiling of the coiling through above-mentioned coiler device 12 beginning cladded yarns 10 the time interim, in other words when the joint service of piecing devices 43; Cladded yarn 10 after the spinning is imported in the above-mentioned yarn clearer 35, judge having or not of elastic filament 22.Thereby, can judge the having or not of heart yearn of cladded yarn 10 through simple reliable in structure ground.In addition, the judgement that heart yearn has or not be after the spinning of spinning apparatus 9 beginning cladded yarns 10, carry out carrying out before the coiling of coiler device 12, so have or not the cladded yarn 10 that uses in the judgement not to be wound up on the coiler device 12 at heart yearn.

In addition; In this embodiment; After above-mentioned spinning began, above-mentioned cladded yarn 10 was attracted by suction tube 44 more weakly, with coiler device 12 in coiling compare after beginning under the state that the existence that makes heart yearn (elastic filament) 22 more obviously changes and be directed in the above-mentioned yarn clearer 35.Thereby, can judge having or not of elastic filament 22 in the cladded yarn 10 reliably.

In addition, in this embodiment, the heart yearn of above-mentioned cladded yarn 10 is elastic filament 22, above-mentioned yarn clearer 35 according to the thickness of cladded yarn 10 than big (elastic filament) 22 that have heart yearn of being judged as of predetermined threshold value.And obviousization of the existence of above-mentioned heart yearn (elastic filament) 22 is to carry out through comparing the tension force that weakens above-mentioned cladded yarn 10 or above-mentioned cladded yarn is relaxed with the period after above-mentioned coiling begins.

That is, in this embodiment, heart yearn is the elastic filament 22 that is rich in retractility, thus have the normal cladded yarn 10 heart yearn contractions gradually of this heart yearn along with the tensile force of length direction, to radially expanding.Therefore, compare and weaken tension force or lax, then under the situation of normal cladded yarn 10, have thickness to become big tendency by yarn clearer 35 detected cladded yarns 10 with heart yearn if make the cladded yarn 10 and the coiling of coiler device 12 begin back (in the coiling).On the other hand, under the situation of the unusual cladded yarn that does not have heart yearn, the tendency of above-mentioned that kind does not appear.Thereby, can carry out the judgement that has or not of the heart yearn (elastic filament) 22 of yarn clearer 35 reliably.

In addition, in this embodiment, judge before the coiling in coiler device 12 begins heart yearn what have or not is to begin the yarn clearer 35 of yarn MA monitoring agency that the shortcoming of cladded yarn 10 is kept watch in the back as the coiling in this coiler device 12.And the threshold value that the yarn of this yarn clearer 35 that has or not decision mechanism as heart yearn during with spinning kept watch on usefulness additionally has heart yearn and has or not the threshold value of judging usefulness.Thereby, can make heart yearn have or not the MA monitoring agency generalization of decision mechanism and yarn, and yarn clearer 35 can utilize and carries out heart yearn reliably corresponding to each threshold value of purpose and have that it's too late yarn is kept watch on the two.

In addition; In this embodiment; Cladded yarn 10 is imported in the test section 39 of yarn clearer 35 of the profile that detects this cladded yarn 10,, be judged as in the inside of this cladded yarn 10 and have elastic filament 22 according to bigger than predetermined threshold value by the thickness of these test section 39 detected cladded yarns 10.Thereby, can judge the having or not of heart yearn of cladded yarn 10 with simple reliable in structure ground.

Preferred first embodiment of the present invention more than has been described, but for above-mentioned structure, for example can add following shown in such various changes implement.

(1) in the above-described embodiment; Have or not when judging at heart yearn and whether to surpass predetermined threshold value according to output voltage and judge having or not of heart yearn corresponding to the light accepting part 38 of the size (profile thickness) of profile; But also can for example make yarn clearer controller 51 possess inhomogeneous (change), the function of for example standard deviation of the output voltage that calculates light accepting part 38, judge having or not of heart yearn according to this inhomogeneous predetermined threshold value that whether surpasses.In addition, also can be according to both judge having or not of heart yearn by the thickness of light accepting part 38 detected cladded yarns and its change (inhomogeneous) compoundly.

(2) have or not the yarn clearer of judgment means to be not limited to constitute as yarn shortcoming detector and heart yearn, also can adopt the for example yarn clearer of capacitance type with so-called photoelectric type.

(3) above-mentioned embodiment has or not judgment means to be also used as yarn clearer heart yearn, has or not judgment means but also can heart yearn additionally be set with yarn clearer.But, make yarn clearer be also used as heart yearn have or not judgment means make structure more simplicity aspect be preferred.

Then, specify preferred second embodiment of the present invention according to accompanying drawing.

Fig. 5 possesses and the spinning machine 101 of the cladded yarn spinning usefulness of a plurality of spinning units 102 of establishing.In this spinning machine 101, be equipped with the direction of arranging along spinning unit 102 advance the joint chassis 103 that is provided with freely and the chassis that doffs (service chassis, service unit) 104, bellows 180 and prime mover case 181 of advancing independently and being provided with freely with this joint chassis.

As shown in Figure 5, each spinning unit 102 has drafting system 107, spinning parts 109, Yarn Feeder Device 111, coiler device 112 as main structure.Drafting system 107 is located near the upper end of housing 106 of spinning machine 101 main bodys; Constitute, the fibre bundle of sending here from this drafting system 107 through the spinning of spinning member 109 (sheath fiber) 108 and from after the elastic filament (heart yearn) 122 sent here of the elastic filament feedway 123 stated.The cladded yarn 110 as spun yarn of discharging from spinning member 109 is transmitted downwards by Yarn Feeder Device 111, behind cutter sweep 136 and yarn clearer (yarn shortcoming testing agency) 135, is reeled by coiler device 112, forms package 145.

Drafting system 107 is as shown in Figure 6, is to be used for sliver 113 is extended and forms the device of fibre bundle 108, by back roller 114, the 3rd roller 115, shelve the intermediate calender rolls 117 of

conveyer belt

116 and 4 rollers of preliminary roller 118 constitute.

In addition, Yarn Feeder Device 111 is made up of with being set to connect from freely niproll 140 with outlet roller 139 outlet roller 139 that is supported by the housing of spinning machine 101 main bodys 106.Through being clipped between outlet roller 139 and the niproll 140 from the cladded yarn 110 that spinning member 109 is discharged and rotation driving outlet roller 139, cladded yarn 110 is carried to coiler device 112 sides.

Like Fig. 5 and shown in Figure 6, elastic filament feedway 123 possesses the rotation roller 126 that drives elastic filament package 125 for each spinning unit 102.Elastic filament package 125 constitutes, and rotation is supported on rotation freely freely by on the support arm 127 of pivotal support, and contacts with the side face of above-mentioned rotation roller 126.The rotation roller 126 for each spinning unit 102 via being with 128 to be connected on the motor 124.

This elastic filament feedway 123 through the stop the rotation driving of roller 126 of the control of motor 124, can stop the rotation of elastic filament package 125 to each spinning unit 102 respectively when the fracture of wire of elastic filament 122.

Separate easypro elastic filament 122 from elastic filament package 125 and supply with to the position at the upper reaches slightly of preliminary roller 118, in spinning member 109, imported with fibre bundle 108 through air suction device 130, not shown clamping cutter sweep and supply guiding tube 131 quilts.Then, fibre bundle 108 is wound on the cladded yarn 110 that spins on the periphery of elastic filament 122 through the rotary air stream that generates by spinning member 109, through Yarn Feeder Device 111 further downstream transport.In addition, the circular velocity of the outlet roller 139 of Yarn Feeder Device 111 constitutes greatly than the circular velocity of above-mentioned rotation roller 126, and thus, elastic filament 122 spins through spinning member 109 coiling fibre bundles 108 under the state that stretches with predetermined ratio of elongation (for example 3 times).

Coiler device 112 constitutes, and can rotate the axial two ends of clamping freely as the bobbin (pipe of reeling) 148 of the core of package 145, and constitute, and makes the side face of head roll 179 contacts at this bobbin 148, makes bobbin 148 rotations and the cladded yarn 110 of can reeling.

Joint chassis 103 possesses like Fig. 5 and shown in Figure 6: chassis 142; The piecing devices 143 of splicer etc. are located on this chassis 142; Suction tube 144, pitching are located on the chassis 142 freely, with axle be center rotation on one side, suck on one side also to catch and discharge and yarn end through Yarn Feeder Device 111, to piecing devices 143 guidings from spinning member 109; Suction nozzle with battery unit 146, pitching are located on the chassis 142 freely, with axle be center rotation on one side, the package 145 that is supported on freely on the coiler device 112 from rotation on one side attracts to catch yarn end, to piecing devices 143 guidings.

As shown in Figure 6, constitute the travel space 150 of above-mentioned joint chassis 103 in the inside of the rear portion side of above-mentioned housing 106.This travel space 150 slenderly forms along the orientation of above-mentioned spinning unit 102.Top and bottom in this travel space 150 are equipped with track 141, and possess travel wheel 149 in the bottom of above-mentioned chassis 142.In this structure, Yi Bian joint chassis 103 is guided on its direct of travel by above-mentioned track 141, Yi Bian can advance in the inside of travel space 150 through the driving of travel wheel 149.

Be provided with yarn clearer 135 and cutter sweep 136 on the position of some below leaning in the front face side of the housing 106 of spinning machine 101 and than above-mentioned Yarn Feeder Device 111, by the test section through this yarn clearer 135 before reeling of the cladded yarn 110 after 109 spinning of spinning member by coiler device 112.The thickness that yarn clearer 135 is kept watch on the cladded yarn 110 of advancing is sent yarn shortcoming detection signal under the situation of spun yarn portion that detects cladded yarn 110 and rove portion (yarn shortcoming).The controller that receives the spinning unit 102 of this signal directly makes cutter sweep 136 actions and cuts off cladded yarn 110; And drafting system 107, spinning member 109, elastic filament feedway 123 etc. are temporarily stopped, joint chassis 103 is arrived before this spinning unit 102 voluntarily.Then, drive spinning member 109 and elastic filament feedway 123 again, make above-mentioned joint chassis 103 carry out joint, begin spinning and coiling again.

This yarn clearer (yarn cleaner) 135 is as shown in Figure 7, in its test section 159, possesses light-projecting portion 137 that the light-emitting component by LED etc. constitutes and the light accepting part 138 that is made up of the components of photo-electric conversion.And, can be with as the result of being blocked by cladded yarn 110 and the size (area) that is formed on the shade on the light accepting part 138 is transformed to voltage signal through this light accepting part 138 from the light of light-projecting portion 137 light projectors.As the light accepting part 138 of this embodiment, the roughly proportional and components of photo-electric conversion of such characteristic that rises of the size of working voltage value and shade.

In Fig. 7, yarn clearer controller 151 is made up of known microcomputer, possesses not shown CPU (arithmetical organ), ROM, RAM (storing mechanism), interface.In above-mentioned storing mechanism, possess suitable program,, in the inside of yarn clearer controller 151, be built with control part 156, storage part 152, comparison portion 153, light projector control part 155 etc. through above-mentioned hardware and this software.

Storage part 152 mainly is made up of RAM, constitutes, can store the voltage value (allowable voltage value) of the permissible range of the thickness that is equivalent to common cladded yarn 110 scope, be the threshold value that yarn is kept watch on usefulness.In the threshold value of the scope of allowable voltage value threshold value and the lower limit according to the yarn shortcoming of wanting to detect etc. and through the upper limit any or both set.In addition, storage part 152 constitutes, and the heart yearn of stating after also can additionally storing with the threshold value of above-mentioned yarn supervision usefulness has or not the threshold value of judging usefulness.The whole action of control part 156 control, and carry out with communicating by letter of the controller of spinning unit 102 sides etc.Constitute comparison portion 153 in the inside of control part 156, through this comparison portion 153 relatively from the voltage value of light accepting part 138 input and the threshold value of yarn supervision usefulness.

In this structure, will be input to successively from the voltage signal of light accepting part 138 in the yarn clearer controller 151, keep watch on the variation of the thickness of the cladded yarn 110 of advancing.That is, if the thickness of the cladded yarn of advancing 110 (profile thickness) change then is formed on the size change of the shade on the light accepting part 138, its become light accepting part 138 outputs voltage value change and appear.This voltage value through after 154 digital conversions of A/D converter, is input in the comparison portion 153, and the threshold ratio of keeping watch on usefulness with above-mentioned yarn.If on cladded yarn 110, exist the yarn shortcoming of rove portion and spun yarn portion etc., this yarn shortcoming to pass through test section 159, then the change of the output voltage values of light accepting part becomes big, departs from the scope of being kept watch on the threshold value decision of usefulness by yarn.The control part 157 of controller of 156 pairs of spinning units 102 of control part that is detected the yarn clearer controller 151 of this situation by comparison portion 153 sends yarn shortcoming signals.If receive this signal, then directly cutter sweep 136 is sent signal and cladded yarn 110 is cut off the requirement of the joint action of generation piecing devices 143 in spinning unit 102 sides.In addition, spinning member 109, elastic filament feedway 123, drafting system 107 etc. are also stopped, interrupting reeling.Then, the control part 157 of spinning unit 102 sends to the control part 160 of joint chassis 103 with signal, makes it arrive the position of this spinning unit 102 voluntarily.If joint chassis 103 arrives the position of this spinning unit 102; The driving of member 109 and elastic filament feedway 123 etc. more then begins to spin; And the joint action that joint chassis 103 is scheduled to is with the cladded yarn 110 of spinning side and cladded yarn 110 joints of package 145 sides.

In addition, the driving voltage of light-projecting portion 137 can be connected with the light projector control part 155 of yarn clearer controller 151 through variable voltage source 147 changes on this variable voltage source 147.Through this structure, even having taken place, deterioration or the temperature of light-projecting portion 137 float, light projector control part 155 also can change voltage value that variable voltage source 147 imposes on light-projecting portion 137 so that it is compensated.As a result, realized the detection of stable yarn shortcoming.

The chassis 104 that doffs is provided with above-mentioned joint chassis 103 independently, like Fig. 5 and shown in Figure 6, can on the direction that spinning unit 102 is arranged, advance along the travel path 186 of the front portion that is located at spinning machine 101 main bodys.The direct of travel of chassis 104 of doffing is identical with above-mentioned joint chassis 103, slenderly is provided with along the orientation of spinning unit 102.In addition, the chassis 104 that doffs disposes in face side with respect to the travel path that each spinning unit 102 clips cladded yarn 110 opposed to each other.

Doff chassis 104 like Fig. 5 and shown in Figure 6, have the chassis housing 185 that on above-mentioned travel path 186, to advance through travel wheel 187.At this chassis housing 185, be equipped with suction tube 188, chuck (chucker) 189, and the figure rolling device not of catching mechanism as cladded yarn.Suction tube 188 is in order to catch from the yarn end of spinning parts 109 discharges and to above-mentioned coiler device 112 guidings while sucking, and pitching is located in the above-mentioned chassis housing 185 freely and elastically.Chuck 189 is in order to supply with the bobbin 148 of sky to above-mentioned coiler device 112, rotation being located on the above-mentioned chassis housing 185 freely.

In addition, be provided with guiding section 158, when doffing action, cladded yarn 110 guided to yarn clearer 135 thus on the top of chassis housing 185.The detailed structure of this guiding section 158 is narrated in the back.

In the ratio travel path 186 more forward sides of the above-mentioned chassis 104 that doffs, be set with carrying of full volume package 145 and put zone 195.On the other hand, chassis housing 185 that kind as shown in Figure 5 of the chassis 104 that doffs constitute the master and look a type, and possess package path 193.This package path 193 is as shown in Figure 6, possesses along with approaching to put zone 195 in above-mentioned year and the ramped bottom surface 194 of step-down.In this structure, the full volume package 145 that the clamping of the bobbin 148 through removing above-mentioned coiler device 112 is pulled down is rolled through the inside of package path 193 on above-mentioned ramped bottom surface 194, drops to be formed to carry in the shallow slot 196 of putting zone 195 and static.Move to like this and carry the full volume package 145 put in the zone 195 and reclaimed, carry to next operation by the operator.

Then, describe with reference to the action of doffing (service of doffing) to the chassis 104 that doffs after Fig. 8.

If become full volume through not shown sensor to package 145 in certain spinning unit 102 in a plurality of spinning units 102; Then the above-mentioned controller of spinning machine 101 stops back roller 114, the 3rd roller 115 and the spinning parts 109 of drafting system 107, and the rotation driving of package 145 is stopped.Then, the chassis 104 that doffs is sent signal, it is advanced to before its spinning unit 102.In Fig. 6, the chassis 104 of representing to doff advances to the spinning unit 102 of purpose and the state that stops.In addition, be winding near the anticipating signal of full stage of rolling up, can make the chassis 104 that doffs move to corresponding spinning unit 102 and standby in advance from the full volume of spinning unit 102 outputs in package.

Behind the stopping of the chassis 104 that doffs, as shown in Figure 8, the chassis 104 that doffs is removed the holding state of completely package 145 through proper handling coiler device 112.The full volume package 145 of pulling down from coiler device 112 is rolled and through the package path 193 the chassis 104 that doffs in ramped bottom surface 194, drops to carry to put in regional 195 the groove 196 and static.

Pull down roughly simultaneously with so full package 145; The chassis 104 that doffs makes suction tube 188 rotate to oblique upper; And make its elongation through not shown air pressure cylinder, make its suction inlet move to the positive downstream (Fig. 8) of the outlet roller 139 and the niproll 140 of above-mentioned Yarn Feeder Device 111.Then, attract to catch the cladded yarn 110 after the spinning of spinning parts 109 sides.

And then as shown in Figure 9, the bobbin 148 that above-mentioned chuck 189 will be stored in sky in the inside of chassis housing 185, that do not reel yarn is set on the coiler device 112.In addition; Make above-mentioned suction tube 188 that kind as shown in Figure 9 that are in extension state shrink back and rotate to downside; While the yarn end that sucks the yarn that is spinned from spinning parts 109 with its direct into sky bobbin 148 near, roll and yarn be installed on this bobbin 148 through omitting illustrated rolling device.

And; At this moment, as shown in Figure 9, the above-mentioned guiding section 158 of chassis housing 185 stretches out and advances to spinning unit 102 sides; Guide plate 173 through its front end is guided in the cladded yarn 110 that stretches between Yarn Feeder Device 111 and the suction tube 188, so that its yarn road is through the test section of yarn clearer 135.Under this state, carry out the judgement that the heart yearn of the cladded yarn 110 of yarn clearer 135 has or not.In addition, have or not determination methods to narrate in the back for this heart yearn.

After above-mentioned rolling finished, the chassis 104 that doffs made bare bobbin 148 contacts on head roll 179, begins the coiling of cladded yarn 110 again.More than, the action of doffing (service of doffing) finishes, and chuck 189, suction tube 188 and guiding section 158 are got back to the position of Fig. 6 originally.The action of chuck 189, suction tube 188 and the guiding section 158 shown in addition, is through being supported on the not shown camshaft on the chassis 104 that doffs by diagram abridged electrical motor driven, carrying out as a series of action.

The judgement that the heart yearn of the cladded yarn 110 that then, carries out for yarn clearer 135 has or not describes.Figure 10 is the block diagram of the yarn clearer when having or not decision mechanism performance function as heart yearn, is the figure corresponding to Fig. 9.

Promptly; Above-mentioned yarn clearer 135 is as narrating with reference to Fig. 6 and Fig. 7 in front; Be that yarn shortcoming in order to detect through coiler device 112 coiling cladded yarns 110 is provided with, but when the service of doffing of completely package also as judging whether elastic filament 122 enters into the judgment means performance function of cladded yarn 110.Below, its structure is described.

Promptly; When the service of doffing of the above-mentioned chassis 104 that doffs; The cladded yarn 110 of the spinning side that is attracted by suction tube 188 to capture is gone out by layback downwards in order to roll; As shown in Figure 9, before spinning unit 102 sides, come in to guide its yarn road through the guiding section 158 of the chassis 104 that doffs, so that it is through the test section and the cutter sweep 136 of yarn clearer 135.As a result, shown in figure 10, carried by Yarn Feeder Device 111 from the cladded yarn 110 that spinning parts 109 is spinned constantly, behind light-projecting portion 137, attracted to suction tube 188 through cutter sweep 136 and yarn clearer 135.

Here, the cladded yarn 110 of this embodiment is reeled fibre bundle 108 under the state that extends as the elastic filament of heart yearn 122 and is spinned making around it, so if tension force a little less than, then shrink in the longitudinal direction, expand slightly diametrically.In addition, under the effect of the elastic force of elastic filament 122, cladded yarn 110 presents fold.Particularly, if with the inhalation power of suction tube 188 set a little less than, the expansion tendency radially of the cladded yarn 110 that then between Yarn Feeder Device 111 and suction tube 188, stretches and fold tendency appears more weakly more doughtily.

Thereby normal cladded yarn 110 is passing through between Yarn Feeder Device 111 and the suction tube 144 under the situation of yarn clearer 135 when doffing, and the area that is formed on the shade on the light accepting part 138 becomes big, and the output voltage of light accepting part 138 increases.In addition, through above-mentioned fold, it is big that the change of the output voltage of light accepting part 138 (inhomogeneous) becomes.On the other hand; Under the situation of the bad cladded yarn of not putting into elastic filament 122 of having spinned from spinning member 109 because of certain situation; Because the expansion tendency radially of above-mentioned that kind do not occur, so the area of its shade changes hardly, the output voltage of light accepting part 138 increases hardly.In addition, owing to also produce fold hardly, so the change of the output voltage of light accepting part 138 is also less.

Utilize this character; In yarn clearer controller 51; As stated, the store voltages that except yarn is kept watch on the threshold value of usefulness, also heart yearn is had or not the threshold value of judging usefulness is in storage part 52, and whether the voltage value of importing from light accepting part 138 through 53 judgements of comparison portion has surpassed this threshold value.As a result, if voltage value is more than the threshold value then is judged as to be the normal cladded yarn 110 of having put into elastic filament 122, if be lower than threshold value, then being judged as is the bad cladded yarn of not putting into elastic filament 122.

Being judged as is not put under the situation of bad cladded yarn of elastic filament 122, and the control part 157 of 56 pairs of spinning unit 102 sides of the control part of yarn clearer controller 51 sends no heart yearn detection signal.In the spinning unit that receives this signal 102 sides, directly bad cladded yarn is cut off, and report is unusual and stop by cutter sweep 136, prompting operation person gets rid of unusually.

The judgement that the heart yearn that when joint, carries out in judgement principle that above-mentioned heart yearn has or not and above-mentioned first embodiment (with reference to the experimental result of Fig. 4) has or not comes down to same.Thereby, in this second embodiment, also can detect having or not reliably as the elastic filament 122 of heart yearn.

Then, after Figure 11, the structure that is used for when above-mentioned the doffing cladded yarn 110 is directed into the above-mentioned guiding section 158 in the yarn clearer 135 is at length described.Figure 11 is doff stereogram situation, that observe from the chassis side of doffing of the guiding section after the action beginning of doffing of chassis of expression.Figure 12 be the expression guiding section from keep out of the way state rotation, to the spinning unit side stretch out, under the effect of guide plate near the stereogram of the situation in yarn road.Figure 13 be represent to make again the air pressure cylinder elongation, with the stereogram of cladded yarn to the situation of yarn clearer guiding.Figure 14 is the stereogram that expression makes the situation that the yarn road departs from from the guide plate.Figure 15 is the stereogram of the state after the yarn road guiding of expression guiding section finishes.

Shown in figure 11, this guiding section 158 be arranged on the chassis 104 that doffs chassis housing 185 above, possess the 1st arm 161 and the 2nd arm 162 that each other overlap up and down.These two arms 161,162 rotate and are supported on upright being located at around the top fulcrum 167 of chassis housing 185 freely.Rotation possesses actuating arm 160 freely in the inside of chassis housing 185, and the front end of this actuating arm 160 is attached at an end of above-mentioned the 1st arm 161 via bar 168.This actuating arm 160 is attached at and is used for getting in touch and driving on the above-mentioned camshaft above-mentioned suction tube 188 and chuck 189, not shown.

The 1st arm the 161, the 2nd arm 162 all is bent to form its front into hook-shaped, unloads yarn plate 171, on the 2nd arm 162, guide plate 172 is installed being equipped with on the front end of the 1st arm 161 respectively.In in above-mentioned fulcrum 167 not shown force application spring is housed, through this force application spring to the 2nd arm 162 application of forces so that its relatively rotating with respect to the 1st arm 161 clockwise around Figure 11.But this rotation is connected on the 1st arm 161 and is limited through being formed at projection 164 on the 2nd arm 162.

Be provided with air pressure cylinder 163 above the 2nd arm 162 that is positioned at upside in two arms 161,162.Front end at the movable part of this air pressure cylinder 163 is fixed with the guide plate 173 that is used for guiding the yarn road.Cylinder elongate sides end at this guide plate 173 is formed with the guide channel 174 that can insert cladded yarn 110.

In above structure, the expression situation that the suction tube 188 of chassis 104 attracts seizure cladded yarn 110 to shrink back of doffing in Figure 11 on one side.Above-mentioned guiding section 158 is shown in figure 11,, does not stretch out from the top of the chassis 104 that doffs and is keeping the state of keeping out of the way again before downside descends in the front end of the suction tube 188 nearly body side through yarn clearer 135.

Then, downwards through after the nearly body side of yarn clearer 135, through diagram abridged camshaft actuated actuating arm 160, this actuating arm 160 is shown in figure 12 at the front end of suction tube 188, via stretch the 1st arms 161 and make its rotation of bar 158.In addition, the 2nd arm 162 is also followed the 1st arm 161 and is rotated under the interior effect that is loaded on the force application spring in the fulcrum 167.As a result, the guide plate 172 of the 2nd arm 162 contacts with cladded yarn 110 and makes its yarn road more on the right side.In addition, under this state, the yarn plate 171 that unloads of the 1st arm 161 does not contact with the yarn road.

Under this state shown in Figure 12, air pressure cylinder 163 is in the state of shrinking back, above-mentioned guide plate 173 and is positioned at yarn road than cladded yarn 110 slightly near body side (chassis 104 sides of doffing).In addition, the yarn road that in Figure 12, is illustrated as cladded yarn 110 overlaps with the guide channel 174 of guide plate 173, but cladded yarn 110 does not also insert in the guide channel 174 under the state of Figure 12.

In the moment of the Figure 12 that stretches out from the chassis 104 that doffs in the rotation end of above-mentioned two arms 161,162, arm 161,162, compressed air is supplied in the above-mentioned air pressure cylinder 163 air pressure cylinder 163 elongations.As a result, shown in figure 13, advance while guide plate 173 is inserted in the guide channel 174 cladded yarn 110, be positioned at spinning unit 102 sides yarn clearer 135 under.As a result, the cladded yarn of seeing off from Yarn Feeder Device 111 110 receives 174 guidings of guide plate 173 and guide channel and through cutter sweep 136 and yarn clearer 135.

After the advancing of above-mentioned guide plate 173, actuating arm 160 further makes the 1st arm 161 rotate slightly via bar 168.The 2nd arm 162 also will be followed under the interior effect that is loaded on the above-mentioned force application spring in the fulcrum 167 and rotated, but it rotates through being formed at restriction projection 165 on the 2nd arm 162 and is connected on the top block 166 that is fixed in chassis housing 185 and is prevented from.As a result, shown in figure 14, become and have only the 1st arm 161 to rotate slightly, the yarn plate 171 that unloads of its front end contacts with cladded yarn 110, makes its yarn road further rely on the right side, so heart yearn 110 is from guide plate 172 disengagings of the 2nd arm 162.The rotation of the 1st arm 161 (unloading the yarn action) is restored at short notice, the result, and like Figure 15 and shown in Figure 9, cladded yarn 110 becomes the state of the guide channel guiding that only receives guide plate 173.Heart yearn shown in Figure 10 have or not judge to be before the rotation of the 1st arm 161 is restored during in carry out.

More than be above-mentioned guiding section 158 be used for carry out heart yearn have or not judgement to the guiding of cladded yarn 110 action; After the heart yearn of yarn clearer 135 has or not judgement; Air pressure cylinder 163 is shunk back and guide plate 173 is withdrawn into chassis 104 sides of doffing, and thus cladded yarn 110 is extracted from the guide channel 174 of guide plate 170.And, make 161,162 rotations of two arms to get back to original retreating position through actuating arm 160.Like this, a series of release of guiding section 158, guiding section 158 is got back to the state of keeping out of the way of Figure 11.

In addition; The guiding of 158 pairs of cladded yarns 110 of above-mentioned guiding section is set at the action moment of each arm 161,162 and air pressure cylinder 163; Stage completion before (being meant the recovery that comprises full volume package and a series of operation of rolling) so that its action of doffing and finishing (further say, begin preceding end) in the rolling of above-mentioned rolling device at the chassis 104 that doffs.That is, can in the action of doffing, carry out heart yearn concurrently simultaneously and have or not judgement, realize the shortening of activity duration.Particularly, through the heart yearn that constantly is set at the moment end yarn clearer 135 before rolling is had or not judgement, can make the lengtheningization of activity duration almost nil.In addition, be not have under the situation of bad cladded yarn of heart yearn even in yarn clearer 135, be judged as, owing to be the state before the rolling, so also carry out from unusual recovery easily.

Shown in above, in the core yarn spinning machine 101 of this embodiment, when the service of doffing of the chassis 104 that doffs, the heart yearn that has or not that cladded yarn 110 is directed into as the heart yearn of judging cladded yarn 110 has or not in the yarn clearer 135 of decision mechanism.Thereby, can in doffing operation, carry out heart yearn concurrently and have or not the judgement operation, can not increase the work dwell time of spinning unit 102 and detect the no heart yearn of cladded yarn reliably.

In addition, the guiding to yarn clearer 135 of this cladded yarn 110 is before the end of the service of doffing, to carry out.Thereby the heart yearn of in the time of the service of doffing, accomplishing cladded yarn 110 easily has or not judgement, can suppress the increase of the coiling dwell time of spinning unit 102.

Say that further the heart yearn that carries out above-mentioned yarn clearer 135 through the moment before the end of the service of doffing has or not judgement, the increase that can make the coiling dwell time of spinning unit 102 is zero.In addition, the moment owing to finishing in the service of doffing before beginning again to reel carries out heart yearn and has or not judgement, so even under the situation of the judgement of having carried out no heart yearn through yarn clearer 135, also carry out from unusual recovery easily.

In addition, carry out the chassis 104 that doffs of the above-mentioned service of doffing and in to the service of doffing of spinning unit 102, catch cladded yarn 110, this cladded yarn that captures 110 is directed in the yarn clearer 135 that is arranged at spinning unit 102 sides through suction tube 188.That is, catch cladded yarns 110 in order to doff by suction tube 188 through the chassis 104 of doffing, can be with cladded yarn 110 easily to yarn clearer 135 guidings of spinning unit 102.Thereby, can carry out the judgement that has or not of 135 pairs of elastic filament 122 of yarn clearer reliably.

In addition, above-mentioned yarn clearer 135 is located in the above-mentioned spinning unit 102, and the above-mentioned chassis 104 that doffs is opposite to above-mentioned spinning unit 102 and disposes, and possesses the movable guiding section 158 of cladded yarn 110 to yarn clearer 135 guidings in chassis 104 sides of doffing.Thereby, through guiding section 158 actions, can cladded yarn 110 easily be directed into the yarn clearer 135 of spinning unit 102 sides opposed from the chassis 104 that doffs with it.

And then above-mentioned guiding section 158 is all kept out of the way the structure of chassis 104 sides of doffing for except doffing operation the time.Thereby; Guiding section 158 is kept out of the way chassis 104 sides of doffing except guiding cladded yarn 110 time as Figure 11 and Fig. 8; So can avoid cladded yarn 110, spinning unit 102, the parts of joint chassis 103 sides and the interference of guiding section 158 of advancing, can carry out the smooth-going work of core yarn spinning machine 101.This effect constitutes performance especially well under 102 situation of advancing of a plurality of spinning units as this embodiment with doffing device (chassis 104 doffs).That is, keep out of the way, prevent that the guiding section 158 and the parts of spinning unit 102 sides from interfering through guiding section 158 when the advancing of the chassis 104 that doffs, the chassis 104 that doffs advance and the action of each spinning unit 102 becomes smooth-going.

In addition, above-mentioned guiding section 158 is for through the spinning movement and the structure of catching cladded yarn 110, guiding to yarn clearer 135 to the elongation of the yarn road of cladded yarn 110 side action.Thereby, can be reliably with yarn clearer 135 guidings of cladded yarn 110 to spinning unit 102 sides that are opposite to the chassis 104 that doffs.In addition, under the state of keeping out of the way before rotation, elongation, can guiding section 158 be accommodated in as Figure 11 in the compact space, the miniaturization of the chassis 104 that doffs is easier to.

And then above-mentioned heart yearn has or not the decision mechanism double as for be arranged on the yarn clearer 135 of above-mentioned spinning unit 102 sides for the detection of carrying out the yarn shortcoming.Thereby, do not need special the setting to be used for carrying out the device that heart yearn has or not judgement, structure is simplicity more.

In addition, the core yarn spinning machine 101 of this embodiment has a plurality of spinning units 102, and the above-mentioned chassis 104 that doffs can constitute 102 of these a plurality of spinning units with advancing.Thereby, can be through 1 chassis 104 responsible service of doffing of doffing to a plurality of spinning units 102, so the required number of the device that is used for doffing tails off, structure is simplicity more, can reduce manufacturing cost.

More than explained preferred embodiment of the present inventionly, but technical scope of the present invention is not limited to above structure, for example can add following change and implement.

(1) for the service in the core yarn spinning machine, the service that is not limited to doff for example can be considered joint service etc.That is, also can constitute, along above-mentioned travel path 186 can advance ground (promptly being opposite to spinning unit 102 ground) the joint chassis is set, equipment guiding section 158 on this joint chassis.In the case, preferably the moment before the joint service of joint chassis finishes is carried out the guiding to the yarn road of yarn clearer 135 of guiding section 158.

(2) in addition, heart yearn has or not decision mechanism in above-mentioned second embodiment, to be also used as yarn clearer 135 equally with first embodiment, has or not decision mechanism but in this second embodiment, also can heart yearn additionally be set with yarn clearer 135.

(3) in addition; In the above-described embodiment; Have or not when judging at heart yearn and whether to surpass predetermined threshold value according to output voltage and judge having or not of heart yearn corresponding to the light accepting part 138 of the size (profile thickness) of profile; But also can for example make yarn clearer controller 51 possess the change of the output voltage that calculates light accepting part 138, the function of for example standard deviation, whether surpass predetermined threshold value according to its change and judge having or not of heart yearn.In addition, also can be according to judge having or not of heart yearn compoundly by both of the thickness of light accepting part 138 detected cladded yarns and its change.In addition, said here profile thickness is not the thickness of actual cladded yarn 110, and is meant the profile interval each other of the shade of projection when radially observing.

(4) have or not the yarn clearer of judgment means same with first embodiment in second embodiment as yarn shortcoming detector or heart yearn, be not limited to constitute, also can adopt the for example yarn clearer of capacitance type with so-called photoelectric type.

(5) in addition, above-mentioned guiding section 158 is guided cladded yarn 110 through spinning movement → elongation action, but is not limited to this, for example also can make and only only guide the structure of cladded yarn 110 through spinning movement or elongation action.But, if as above-mentioned embodiment, be rotated action, elongation action successively, then can with the guiding section 158 of retreating position do not interfere with miscellaneous part and be not housed in the compact space aspect be preferred.

(6) in addition, the above-mentioned chassis 104 that doffs can constitute between each spinning unit 102 with advancing, but is not limited to this, also can only immovably dispose doffing device.

(7) in addition, the present invention is not limited to possess the spinning machine of the spinning parts of said structure, also can be applied in the spinning machine of type of the spinning parts that possesses other structures.

(8) the present invention's judgement that heart yearn in the action of chassis 104 has or not that is not limited to doff also comprises the judgement that the heart yearn in the Yarn connecting action of joint chassis 103 has or not.In the case, guide mechanism is equivalent to suction tube 144.That is, joint, any all being included in " service " of doffing.

Claims

1. a core yarn spinning machine possesses the spinning apparatus of spinning cladded yarn and the coiler device of the cladded yarn after the coiling spinning, it is characterized in that,

The heart yearn that has or not that possesses the heart yearn of judging above-mentioned cladded yarn has or not decision mechanism; In above-mentioned spinning apparatus after the spinning of beginning cladded yarn before the coiling till the coiling that begins cladded yarn through above-mentioned coiler device during, the cladded yarn after spinning is imported to above-mentioned heart yearn has or not in the decision mechanism;

In addition, with behind the cladded yarn that begins by above-mentioned coiler device to reel during compare, cladded yarn is imported to above-mentioned heart yearn have or not in the decision mechanism during, the existence of the heart yearn of cladded yarn is obviously changed;

The heart yearn of above-mentioned cladded yarn is an elastic filament; Above-mentioned heart yearn have or not decision mechanism be according to the thickness of cladded yarn or its change than the big mechanism that is judged as of threshold value with heart yearn, obviousization of the existence of above-mentioned heart yearn through with after above-mentioned coiling begins during compare the tension force that weakens above-mentioned cladded yarn or above-mentioned cladded yarn relaxed and carry out.

2. core yarn spinning machine as claimed in claim 1; It is characterized in that; Yarn MA monitoring agency during after above-mentioned heart yearn has or not the above-mentioned coiling of decision mechanism to begin; This heart yearn have or not decision mechanism after above-mentioned coiling begins during yarn keep watch on the threshold value of usefulness, additionally have heart yearn and have or not the threshold value of judging usefulness.

3. the heart yearn of a cladded yarn has or not determination methods, and having or not of the heart yearn that the judgement cladded yarn is inner is characterized in that,

The cladded yarn of obviousization of existence of heart yearn will be imported in the test section of the thickness that detects this cladded yarn;

Has heart yearn according to being judged as greatly than predetermined value by the thickness of the detected cladded yarn of this test section or its change;

The heart yearn of above-mentioned cladded yarn is an elastic filament;

Obviousization of the existence of above-mentioned heart yearn is to carry out through weakening the tension force of above-mentioned cladded yarn or above-mentioned cladded yarn is relaxed with common compared.

4. the method for servicing of a core yarn spinning machine is characterized in that, when this was served, the heart yearn that has or not that will make the cladded yarn of obviousization of existence of heart yearn direct into the heart yearn of judging cladded yarn than common state had or not in the decision mechanism;

The heart yearn of above-mentioned cladded yarn is an elastic filament; Above-mentioned heart yearn have or not decision mechanism be according to the thickness of cladded yarn or its change than the big mechanism that is judged as of threshold value with heart yearn, obviousization of existence of above-mentioned heart yearn is to carry out through weakening the tension force of above-mentioned cladded yarn or above-mentioned cladded yarn is relaxed with above-mentioned common compared.

5. the method for servicing of core yarn spinning machine as claimed in claim 4 is characterized in that, cladded yarn to have or not the guiding of decision mechanism to heart yearn be constantly before this service finishes to carry out.

6. the method for servicing of core yarn spinning machine as claimed in claim 5 is characterized in that, the judgement that above-mentioned heart yearn has or not the heart yearn of decision mechanism to have or not is to carry out in the moment before this service finishes.

7. core yarn spinning machine, the service unit that has the unit of spinning and coiling cladded yarn and be used for said units is served is characterized in that, is provided with:

Heart yearn has or not decision mechanism, judges the having or not of heart yearn of cladded yarn that makes obviousization of existence of heart yearn than common state;

Guide mechanism is caught cladded yarn to the service of said units the time, and the cladded yarn that this captures is directed into above-mentioned heart yearn has or not decision mechanism;

8. core yarn spinning machine as claimed in claim 7; It is characterized in that; Above-mentioned heart yearn has or not decision mechanism to be located in the said units; Above-mentioned service unit is opposite to said units and disposes, and above-mentioned guide mechanism possesses the movable guiding section that cladded yarn is had or not the decision mechanism guiding to above-mentioned heart yearn in above-mentioned service unit side.

9. core yarn spinning machine as claimed in claim 8 is characterized in that, above-mentioned guiding section is kept out of the way above-mentioned service unit side when not carrying out above-mentioned service.

10. core yarn spinning machine as claimed in claim 9 is characterized in that, above-mentioned guiding section through from above-mentioned keep out of the way that state begins to rotate and extend to the yarn road of cladded yarn side catch cladded yarn, direct into above-mentioned heart yearn and have or not in the decision mechanism.

11. core yarn spinning machine as claimed in claim 7 is characterized in that, above-mentioned heart yearn has or not decision mechanism to be also used as to be located at the yarn shortcoming testing agency of said units side.

12. core yarn spinning machine as claimed in claim 7 is characterized in that, and is provided with a plurality of spinning units, above-mentioned service unit can constitute between these a plurality of spinning units with advancing.